[go: up one dir, main page]

WO2023204114A1 - Crépine de fluide, mécanisme de couvercle pour crépine de fluide, et procédé d'élimination de matières étrangères pour crépine de fluide - Google Patents

Crépine de fluide, mécanisme de couvercle pour crépine de fluide, et procédé d'élimination de matières étrangères pour crépine de fluide Download PDF

Info

Publication number
WO2023204114A1
WO2023204114A1 PCT/JP2023/014786 JP2023014786W WO2023204114A1 WO 2023204114 A1 WO2023204114 A1 WO 2023204114A1 JP 2023014786 W JP2023014786 W JP 2023014786W WO 2023204114 A1 WO2023204114 A1 WO 2023204114A1
Authority
WO
WIPO (PCT)
Prior art keywords
strainer
fluid
foreign matter
pipe
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/014786
Other languages
English (en)
Japanese (ja)
Inventor
俊郎 宮地
清長 山根
史郎 藤曲
新也 櫻井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mizuno Strainer Industries Co Ltd
NYK Trading Corp
Original Assignee
Mizuno Strainer Industries Co Ltd
NYK Trading Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mizuno Strainer Industries Co Ltd, NYK Trading Corp filed Critical Mizuno Strainer Industries Co Ltd
Priority to CN202380023099.4A priority Critical patent/CN118742369A/zh
Priority to KR1020247033301A priority patent/KR20240158325A/ko
Publication of WO2023204114A1 publication Critical patent/WO2023204114A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147—Bypass or safety valves
    • B01D35/1475—Pressure relief valves or pressure control valves

Definitions

  • the present invention relates to a fluid strainer, a lid mechanism for a fluid strainer, and a method for removing foreign matter from a fluid strainer.
  • a fluid strainer is known that separates and removes foreign matter from a fluid containing foreign matter to obtain a filtered fluid.
  • a fluid strainer is installed, for example, in a seawater pipe used to cool an engine or the like in a ship. In this case, the fluid strainer is used to separate and remove foreign substances such as jellyfish contained in seawater to prevent clogging of pipes and damage to equipment.
  • Patent Document 1 describes a seawater strainer equipped with a strainer tube installed in a seawater cooling pipe, which is equipped with a drain chamber located on the inlet side of the strainer tube and a cock for discharging garbage in the drain chamber.
  • the seawater strainer is different from the present invention.
  • a typical embodiment of the present invention includes a main body container, a cage-shaped strainer that is housed in the main body container and separates foreign substances from a fluid containing foreign substances, and a cage-shaped strainer that is provided in the main body container and that separates the foreign substances from a fluid containing the foreign substances.
  • an inflow pipe for flowing into the strainer cylinder for flowing into the strainer cylinder; an outlet pipe provided in the main body container for flowing out the filtered fluid from which the foreign substances have been separated; a gas injection pipe for injecting into the strainer, and a discharge pipe for discharging the foreign substance mixed fluid, which is the fluid stirred by the gas and mixed with the foreign substances, from the inside of the strainer to the outside of the strainer. It's a strainer.
  • another typical embodiment of the present invention includes a main body container, a cage-shaped strainer cylinder that is housed in the main body container and separates foreign substances from a fluid containing foreign substances, and a cage-shaped strainer provided in the main body container.
  • a fluid strainer which is attached to a fluid strainer, and includes an inlet pipe that causes the fluid to flow into the strainer cylinder, and an outlet pipe that is provided in the main body container and that causes the filtered fluid from which the foreign substances have been separated to flow out.
  • the lid mechanism includes a lid, a gas injection tube that is provided to penetrate the lid and inject gas into the strainer cylinder to stir the fluid in the strainer cylinder, and a gas injection tube that penetrates the lid.
  • a lid mechanism for a fluid strainer comprising: a discharge pipe for discharging the foreign matter mixed fluid, which is the fluid stirred by the gas and mixed with the foreign matter, from the inside of the strainer tube to the outside of the strainer tube. be.
  • another typical embodiment of the present invention includes a main body container, a cage-shaped strainer cylinder that is housed in the main body container and separates foreign substances from a fluid containing foreign substances, and a cage-shaped strainer provided in the main body container.
  • a fluid strainer comprising: an inflow pipe for causing the fluid to flow into the strainer cylinder; and an outflow pipe provided in the main body container for flowing out the filtered fluid from which the foreign substances have been separated;
  • a gas for stirring the fluid in the strainer tube is injected into the strainer tube through a gas injection tube that connects the strainer tube with the inside of the strainer tube, and a discharge pipe connects the outside of the main container and the inside of the strainer tube.
  • foreign matter accumulated in the fluid strainer can be more easily removed.
  • FIG. 1 is a perspective view showing a general fluid strainer.
  • FIG. 1 is a side sectional view of a typical fluid strainer. It is a top view of a general fluid strainer.
  • It is a flow chart showing an example of the flow of a general foreign matter removal method.
  • 1 is a perspective view showing a configuration example of a fluid strainer according to Embodiment 1.
  • FIG. FIG. 2 is a diagram of the fluid strainer according to Embodiment 1 when viewed along the y direction.
  • FIG. 2 is a diagram of the fluid strainer according to Embodiment 1 when viewed along the x direction.
  • 2 is a diagram showing an example of an installation mode of a fluid strainer according to Embodiment 1.
  • FIG. FIG. 2 is a flow diagram showing an example of a flow of a method for removing foreign matter from a fluid strainer.
  • FIG. 3 is a diagram showing how foreign matter is deposited on a fluid strainer.
  • FIG. 3 is a diagram showing how the inside of a fluid strainer is stirred with air.
  • FIG. 3 is a diagram showing how foreign matter and seawater are discharged from the fluid strainer using air pressure.
  • FIG. 3 is a diagram showing how foreign matter and seawater are discharged from the fluid strainer using air pressure.
  • FIG. 3 is a diagram showing how foreign matter and seawater are discharged from the fluid strainer using air pressure.
  • FIG. 7 is a diagram showing an installation mode of a fluid strainer according to a modification of the first embodiment. It is a flowchart which shows an example of the flow of the foreign material removal method of the fluid strainer according to this modification.
  • FIG. 7 is a diagram of the fluid strainer lid mechanism according to Embodiment 2 when viewed along the y direction.
  • FIG. 7 is a diagram of the fluid strainer lid mechanism according to the second embodiment when viewed along the x direction.
  • Fluid strainers are installed in piping equipment, for example, in ships, power plants, factories, etc., that suck up seawater used to cool heat-generating equipment from the ocean and send it to the cooling system.
  • a fluid strainer is used to separate and remove foreign substances such as fish and shellfish, seaweed, and jellyfish contained in seawater.
  • seawater piping equipment of a ship will be explained as an example of a mode in which a fluid strainer is installed, and an example of a conventional fluid strainer and a method for removing foreign matter will be explained, and then each embodiment of the present invention will be explained. I will explain about it.
  • FIG. 1 is a diagram showing an example of the configuration of seawater piping equipment in a ship.
  • the seawater piping equipment 1 is a piping equipment for cooling a main engine, a generator engine, etc. mounted on a ship with seawater.
  • the seawater piping equipment 1 includes, for example, a seawater inlet 10, a water absorption filtration system 20, a cooling system 30, and a seawater outlet 40.
  • the seawater inlet 10 and the water absorption filtration system 20 are connected by a pipe 15.
  • the water absorption filtration system 20 and the cooling system 30 are connected by a pipe 25.
  • the cooling system 30 and the seawater outlet 40 are connected by a pipe 35.
  • the seawater inlet 10 is an opening for inhaling seawater 80 from the ocean, and is formed at the bottom or side of the ship.
  • the water suction filtration system 20 sucks up seawater 80 from the seawater inlet 10 through the piping 15, separates and removes foreign matter 81 from the seawater 80, and sends it out through the piping 25 to the cooling system 30.
  • the cooling system 30 cools the engine and the like using the sent seawater 80.
  • Seawater 80 used for cooling is sent out to seawater outlet 40 through piping 35.
  • the seawater outlet 40 is an opening for discharging the seawater 80 sent out from the cooling system 30.
  • the seawater outlet 40 is formed at the bottom or side of the ship.
  • the water absorption filtration system 20 includes a first water absorption filtration system 21 and a second water absorption filtration system 22 that are connected in parallel.
  • the first water suction filtration system 21 has a first inlet valve 211 , a first fluid strainer 212 , a first seawater pump 213 , and a first outlet valve 214 .
  • the first inlet valve 211, the first fluid strainer 212, the first seawater pump 213, and the first outlet valve 214 are connected in series from the piping 15 in this order.
  • the second water suction filtration system 22 has a second inlet valve 221 , a second fluid strainer 222 , a second seawater pump 223 , and a second outlet valve 224 .
  • the second inlet valve 221, the second fluid strainer 222, the second seawater pump 223, and the second outlet valve 224 are connected in series from the piping 15 in this order.
  • the water absorption filtration system 20 is operated, for example, as follows.
  • the second inlet valve 221 and the second outlet valve 224 are closed, and the second seawater pump 223 is stopped.
  • the first inlet valve 211 and the first outlet valve 214 are open, and the first seawater pump 213 is operating.
  • seawater 80 is sucked up from the seawater inlet 10 .
  • the sucked up seawater 80 is filtered by a first fluid strainer 212, passes through a first seawater pump 213, and is sent to the cooling system 30.
  • FIG. 2 is a diagram showing how foreign matter accumulates in a fluid strainer installed in seawater piping equipment.
  • the seawater inlet 10 is provided in a boat portion 12 that is the bottom or side of a boat 11.
  • Seawater 80 containing foreign matter 81 is sucked up from seawater inlet 10 by the suction force of first seawater pump 213 , passes through first inlet valve 211 , and flows into first fluid strainer 212 .
  • first fluid strainer 212 foreign substances 81, such as fish, shellfish, and jellyfish, are separated and removed from the seawater 80. By removing foreign matter 81 from seawater 80 in this manner, clogging of pipes and damage to equipment including pumps can be avoided.
  • the foreign matter 81 gradually accumulates on the first fluid strainer 212, as shown in FIG.
  • the flow of the seawater 80 is obstructed by the foreign matter 81, the flow rate of the seawater 80 is reduced, and the cooling effect of the seawater 80 is reduced.
  • a foreign matter removal operation an operation to remove the accumulated foreign matter 81 from the first fluid strainer 212 (hereinafter referred to as a foreign matter removal operation) is performed. ) is carried out.
  • the water absorption filtration system to be used is switched from the first water absorption filtration system 21 to the other second water absorption filtration system 22.
  • the water absorption filtration system to be used is switched from the second water absorption filtration system 22 to the first water absorption filtration system 21. Then, the work of removing foreign matter from the second fluid strainer 222 is performed. Note that when the first inlet valve 211, first outlet valve 214, second inlet valve 221, and second outlet valve 224 are check valves, these four valves are always used in an open state. Ru.
  • FIG. 3 is a perspective view of a typical fluid strainer.
  • FIG. 4A is a side sectional view of a typical fluid strainer
  • FIG. 4B is a top view of a typical fluid strainer.
  • the direction in which seawater flows in the fluid strainer is defined as the x direction
  • the horizontal direction orthogonal to the x direction is defined as the y direction
  • the direction orthogonal to the x and y directions is defined as the z direction.
  • the x and y directions are horizontal and the z direction is vertical.
  • FIG. 4B some regions are shown in cross-section.
  • a typical fluid strainer 5 includes a main body container 51, an inflow pipe 52, an outflow pipe 53, a strainer cylinder 54, an upper lid 55, and an upper lid attachment mechanism 56.
  • a fluid strainer is also called a filter, a strainer, etc.
  • a strainer tube is also called an element filter.
  • the main container 51 includes a cylindrical member extending in the z direction and a bottom member connected to the cylindrical member so as to close a lower opening of the cylindrical member.
  • the main body container 51 has an inflow opening on one side in the x direction through which fluid flows.
  • the main body container 51 has an outflow opening through which the fluid flows out on the other side in the x direction.
  • the inflow pipe 52 is connected to the inflow opening of the main container 51. Further, the outflow pipe 53 is connected to the outflow opening of the main body container 51.
  • the strainer tube 54 generally has a cage shape.
  • the strainer tube 54 is configured to be housed inside the main container 51.
  • the strainer tube 54 has an opening on the inlet pipe 52 side of the side surface of the strainer tube 54 .
  • the upper lid 55 is configured to close the upper opening of the cylindrical member that constitutes the main container 51.
  • the upper lid 55 has an annular ring portion 551 on the upper surface.
  • the upper lid 55 can be opened by attaching a hook of a lifting tool to the ring portion 551 and lifting it.
  • the upper lid attachment mechanism 56 is a mechanism for attaching the upper lid 55 to the main container 51.
  • the top lid attachment mechanism 56 includes, for example, a notch that the top lid 55 and the main container 51 have, a bolt that passes through the notch, and a mounting nut that fastens the top lid 55 to the main container 51 by fitting into the bolt and turning the screw. include.
  • the upper lid 55 is generally provided with a gas vent valve for discharging gas, for example, air, inside the fluid strainer 5 to the outside.
  • FIG. 5 is a flow diagram showing an example of the flow of a general foreign matter removal method.
  • step J1 the inlet and outlet valves of the fluid strainer are closed.
  • the worker closes the inlet and outlet valves to stop the flow of seawater 80 into and out of the fluid strainer 5.
  • step J2 the work of loosening the mounting nut of the upper lid of the fluid strainer is performed.
  • the mounting nut that attaches the upper lid 55 to the main container 51 is tightly tightened to prevent seawater 80 from leaking from the fluid strainer 5.
  • the mounting nut is relatively large in size. Workers use large wrenches to loosen multiple mounting nuts one by one.
  • a lifting tool for lifting the top lid is prepared.
  • the upper lid 55 of a fluid strainer used in a relatively large ship weighs from several tens of kilograms to more than one hundred kilograms. It is not easy to lift the heavy top lid 55 with bare hands, and a lifting tool is usually used to lift the top lid 55.
  • the lifting tool include a chain block, a crane winch, and a wire hoist.
  • step J4 the work of lifting the top cover using a lifting tool and opening the top cover is performed.
  • step J5 a lifting tool is used to lift and take out the strainer tube from the main container. Since the strainer tube 54 is relatively heavy and relatively deep like the upper lid 55, the worker lifts the strainer tube 54 using a lifting tool and takes it out.
  • step J6 the work of removing accumulated foreign matter from the strainer tube and disposing of the foreign matter is performed.
  • highly viscous foreign matter 81 such as jellyfish is stuck to the strainer tube 54, and in order to remove the foreign matter 81, it is necessary to manually peel off the foreign matter from the strainer tube 84.
  • step J7 the work of cleaning the strainer tube is performed.
  • the worker carefully cleans the strainer tube 54 so that the strainer tube 54 does not become clogged immediately.
  • step J8 the cleaned strainer tube is stored in the main container using a hanging tool.
  • the worker attaches a hook of a hanging tool to the strainer tube 54, lifts the strainer tube 54 once, moves it to the upper part of the main container 51, and gradually lowers it to store it in the main container 51.
  • step J9 the work of closing the top lid is performed.
  • the worker attaches the hook of the hanging tool to the upper lid 55, gradually lowers it, and closes the upper lid 55.
  • step J10 the mounting nut of the upper lid of the fluid strainer is tightened. Workers use large, heavy wrenches to firmly tighten the mounting nuts one by one.
  • step J11 the inlet and outlet valves of the fluid strainer are opened.
  • the worker operates the inlet and outlet valves to open the inlet and outlet valves.
  • By opening the inlet/outlet valve the flow of seawater 80 into and out of the fluid strainer 5 is started.
  • step J12 the air inside the fluid strainer is vented.
  • the worker opens the gas vent valve provided on the upper lid 55 of the fluid strainer 5 to open the gas vent valve and exhaust the air remaining inside the fluid strainer to the outside. After the air is exhausted to the outside, close the gas vent valve to close the gas vent valve.
  • the work of removing foreign matter accumulated in the fluid strainer is a laborious and complicated work.
  • large numbers of jellyfish occur, and they quickly accumulate in the fluid strainer.
  • Foreign matter removal work is sometimes carried out more than 50 times a day.
  • the physical burden on the workers involved in removing foreign matter from the fluid strainer is extremely heavy. Therefore, there is a strong need for a technique that can more easily remove foreign matter accumulated in a fluid strainer.
  • Each embodiment of the present invention has the effect of being able to more easily remove foreign substances accumulated in the fluid strainer, as described below.
  • Each embodiment of the present invention is a fluid strainer, a lid mechanism for a fluid strainer, and a method for removing foreign matter from a fluid strainer.
  • a fluid strainer includes a main body container, a cage-shaped strainer cylinder housed in the main body container and separating the foreign substances from a fluid containing foreign substances, and a cage-shaped strainer provided in the main body container, an inlet pipe for causing fluid to flow into the strainer cylinder; an outlet pipe provided in the main body container for flowing out the filtered fluid from which the foreign matter has been separated; A gas injection pipe for injecting into the cylinder, and a discharge pipe for discharging the foreign substance mixed fluid, which is the fluid mixed with the foreign substances stirred by the gas from inside the strain cylinder, to the outside of the strain cylinder. , a fluid strainer.
  • a lid mechanism for a fluid strainer which is an embodiment of the present invention includes a main body container, a cage-shaped strainer cylinder that is housed in the main body container and separates the foreign substances from a fluid containing foreign substances, and A fluid strainer that is attached to a fluid strainer, and includes an inflow pipe that is provided and causes the fluid to flow into the strainer cylinder, and an outflow pipe that is provided in the main body container and causes the filtered fluid from which the foreign substances have been separated to flow out.
  • a lid mechanism for a strainer comprising: a lid; a gas injection tube that is provided to pass through the lid and inject gas into the strainer cylinder to stir the fluid in the strainer cylinder; and a gas injection tube that penetrates the lid. and a discharge pipe for discharging foreign matter mixed fluid, which is the fluid stirred by the gas and mixed with the foreign matter, from the inside of the strainer tube to the outside of the strainer tube. It is a mechanism.
  • a method for removing foreign matter from a fluid strainer which is an embodiment of the present invention, includes a main body container, a cage-shaped strainer tube that is housed in the main body container and separates the foreign matter from a fluid containing foreign substances, and the main body.
  • the fluid strainer comprises: an inflow pipe provided in the container for causing the fluid to flow into the strainer cylinder; and an outflow pipe provided in the main body container for flowing out the filtered fluid from which the foreign substances have been separated.
  • a gas that stirs the fluid in the strainer tube is injected into the strainer tube through a gas injection pipe that connects the outside of the main container and the inside of the strainer tube.
  • This is a method for removing foreign matter from a fluid strainer, in which a foreign matter mixed fluid, which is the fluid agitated by the gas and mixed with the foreign matter, is discharged to the outside of the strainer cylinder through a discharge pipe connecting the two.
  • FIG. 6 is a perspective view showing a configuration example of the fluid strainer 6 according to the first embodiment.
  • a part of the fluid strainer 6 is shown in a cross-sectional view, and another part is shown in a perspective view.
  • FIG. 7A is a diagram when the fluid strainer 6 according to the first embodiment is viewed along the y direction.
  • FIG. 7B is a diagram when the fluid strainer 6 according to the first embodiment is viewed along the x direction.
  • the fluid strainer 6 includes a main body container 61, an inflow pipe 62, an outflow pipe 63, a strainer cylinder 64, an upper lid 65, a gas injection pipe 67, an exhaust pipe 68, and a gas vent pipe 68. It has a valve 69 and a connecting member 70. Further, as shown in FIG. 6, the fluid strainer 6 has an upper lid attachment mechanism 66. Each component constituting the fluid strainer 6 is manufactured from a material such as cast iron, steel plate, or stainless steel, and a part or all of each component is subjected to corrosion prevention treatment.
  • the main container 61 includes a cylindrical member 611 extending in the z direction and a bottom member 612 connected to the cylindrical member 611 so as to close a lower opening of the cylindrical member 611.
  • the cylindrical member 611 has an inflow opening 611a formed in a curved surface on one side in the x direction, into which fluid flows. Further, the cylindrical member 611 has an outflow opening 611b formed in the curved surface on the other side in the x direction, through which the fluid flows out.
  • the inflow pipe 62 generally has a cylindrical shape extending in a direction parallel to the x direction.
  • the inflow pipe 62 is connected to the main body container 61 such that one opening of the inflow pipe 62 and the opening of the inflow opening 611a match.
  • the outflow pipe 63 generally has a cylindrical shape extending in a direction parallel to the x direction.
  • the outflow pipe 63 is connected to the main body container 61 so that one opening of the outflow pipe 63 and the opening of the outflow opening 611b match.
  • main body container 61 the inflow pipe 62, and the outflow pipe 63 may be integrally formed.
  • the strainer tube 64 generally has a cage shape.
  • the strainer tube 64 is configured to be housed inside the main container 61.
  • a large number of straining holes 64a are formed on the side surface of the straining tube 64.
  • the filter hole 64a acts to allow fluid to pass through, but not to allow foreign matter larger than the opening of the filter hole 64a to pass through.
  • the strainer tube 64 has a strainer tube opening 64b in which an opening having a shape substantially the same as or similar to the opening of the inflow opening 611a is formed at a position facing the inflow opening 611a on the side surface of the strainer tube 64. are doing.
  • the upper lid 65 generally has a disk shape or a bowl shape.
  • the upper lid 65 is configured to close the upper opening of the cylindrical member 611 that constitutes the main container 61.
  • the upper lid attachment mechanism 66 is a mechanism for attaching the upper lid 65 to the main container 61.
  • the top lid attachment mechanism 66 includes a plurality of notches formed on the outer periphery of the top lid 65, a plurality of notches formed on the outer periphery of the upper opening of the main container 61, and It includes a bolt that passes through the bolt and a nut that is screwed onto the bolt.
  • the notch portion of the upper lid 65 and the notch portion of the main container 61 are formed at positions corresponding to each other.
  • the upper lid 65 is fastened to the main container 61 by aligning the notch of the upper lid 65 with the notch of the main container 61, passing a bolt through the notch from below, aligning a nut with the bolt, and turning. Ru.
  • the bolt is attached to rotate around the lower end.
  • top lid attachment mechanism 66 is not limited to this embodiment, and may be any other known attachment mechanism.
  • the gas injection pipe 67 is attached to the upper lid 65 so as to pass through the upper lid 65. Gas is injected from the opening of the gas injection pipe 67 above the upper lid 65, that is, on the outside of the main container 61.
  • the gas injection pipe 67 has a straight pipe part 671, a bent pipe part 672, and a curved pipe part 673 as main parts.
  • the straight tube portion 671 is a tube member that passes through a through hole provided in the upper lid 65 without any gap and extends toward the bottom of the strainer tube 64.
  • the straight pipe portion 671 is fixed to the upper lid 65 by welding or the like. Note that the straight pipe portion 671 does not need to extend linearly, and may be configured such that the opening on the main container 61 side is located near the bottom of the strainer tube 64 when the upper lid 65 is closed. It is enough if you have it.
  • a gas injection valve 67a is connected to the opening of the straight pipe portion 671 on the outside of the main container 61.
  • the bent pipe section 672 is a pipe member whose one opening is connected to the opening of the straight pipe section 671 on the inside of the main body container 61 .
  • the curved pipe portion 672 has a curved shape such that when the upper lid 65 is closed, the flow direction of the injected gas changes from the downward direction to the generally horizontal direction.
  • the curved tube section 673 is a tube member whose one opening is connected to the other opening of the curved tube section 672.
  • the curved pipe portion 673 is arranged such that when the upper lid 65 is closed, the flow direction of the injected gas is below the area of the inner side surface area of the strainer tube 64 that is close to the opening of the outflow tube 63. It has a curved shape along the circumferential direction. That is, the curved pipe portion 673 extends along the circumferential direction of the side surface of the strainer tube 64 below the region of the inner side surface area of the strainer tube 64 that is close to the opening of the outflow tube 63 .
  • a plurality of ejection holes 673a from which the injected gas is ejected are formed in the curved pipe portion 673.
  • a gas injection valve 67a is connected to the injection port of the gas injection pipe 67.
  • a compressed air pipe provided inside the ship is connected to the gas injection valve 67a. That is, in this embodiment, the above gas is compressed air, and when the gas injection valve 67a of the gas injection pipe 67 is opened, air is injected from the injection port and air is ejected from the plurality of ejection holes 673a.
  • the opening on the tip side of the curved tube portion 673 may be open, but it is more preferable to close it because the force of the gas jetted from the jetting hole 673a becomes stronger.
  • the jetting holes 673a are preferably formed such that the normal direction of the opening surface of the jetting holes 673a is a direction having a vertically downward component or a horizontal direction. That is, it is preferable that the ejection hole 673a is formed so as to face in any direction between right beside the curved pipe portion 673 and right below it. If the ejection hole 673a is formed in such an orientation, fine dust will not fall due to gravity and enter the ejection hole 673a, and the risk of the ejection hole 673a becoming clogged with dust can be reduced.
  • the discharge pipe 68 is attached to the upper lid 65 so as to pass through the upper lid 65.
  • the discharge pipe 68 has a straight pipe part 681 and a curved pipe part 682 as main parts.
  • the straight tube portion 681 is a tube member that passes through a through hole provided in the upper lid 65 without any gaps and extends toward the bottom of the strainer tube 64.
  • the opening of the straight pipe portion 681 on the outside of the main container 61 is connected to the discharge valve 68a.
  • the bent pipe part 682 is a pipe member whose one opening is connected to the opening on the inside of the main body container 61 of the straight pipe part 681.
  • a suction port 682a is formed at the tip of the bent pipe portion 682 to suck in seawater containing foreign matter mixed with seawater.
  • the bent pipe portion 682 has a curved shape such that when the upper lid 65 is closed, the flow direction of the foreign matter-mixed seawater sucked from the suction port 682a is generally horizontal.
  • the normal direction H of the opening surface ⁇ of the suction port 682a is preferably non-perpendicular to the horizontal plane. Furthermore, it is more preferable that the angle of the normal direction H from the horizontal plane is between 45 degrees diagonally upward and 45 degrees diagonally downward. According to the study results of the present inventors, when the normal direction H of the opening surface ⁇ of the suction port 682a is non-perpendicular to the horizontal plane, in particular, the angle of the normal direction H from the horizontal plane is upwardly oblique. It has been found that when the angle is between 45 degrees and a downward angle of 45 degrees, foreign substances mixed in seawater are efficiently sucked in. In this embodiment, the normal direction H of the opening surface ⁇ of the suction port 682a is parallel to the horizontal plane. That is, the opening plane ⁇ is perpendicular to the horizontal plane.
  • the distance between the lowest point of the suction port 682a of the discharge pipe 68 and the bottom surface of the strainer tube 64 is preferably 10 mm or more and 80 mm or less. According to the study results of the present inventors, it has been found that when the above-mentioned interval is within the distance range, the foreign matter 81 mixed in the foreign matter mixed seawater is efficiently sucked in.
  • the gas vent valve 69 is attached to the upper lid 65.
  • the gas vent valve 69 is configured such that when the valve is opened, the inside and outside of the main body container 61 are spatially connected, and when the valve is closed, the inside and the outside of the main body container 61 are isolated.
  • the connecting member 70 is a member that connects the gas injection pipe 67 and the discharge pipe 68 in a region on the main body container 61 side. Due to the presence of this connecting member 70, the upper lid 65, the gas injection pipe 67, the exhaust pipe 68, and the connecting member 70 are integrally configured, and the rigidity is increased as a whole. Due to the increased rigidity of the upper cover 65, gas injection pipe 67, discharge pipe 68, and connecting member 70, the gas injection pipe 67 and discharge pipe 68 may be damaged due to water pressure or vibration caused by the flow of seawater. It becomes possible to reduce risks.
  • the fluid strainer 6 further includes a pressure gauge 71 and a safety valve 72.
  • the pressure gauge 71 is provided on the upper lid 65 and is configured to measure the atmospheric pressure inside the fluid strainer 6. An operator can successively grasp the atmospheric pressure inside the fluid strainer 6 by checking the pressure gauge 71.
  • the safety valve 72 is provided on the upper lid 65 and is configured to open when the air pressure inside the fluid strainer 6 exceeds a threshold value. By installing such a safety valve 72, it becomes possible to reduce the risk of damage to the fluid strainer 6 due to an abnormal increase in internal pressure.
  • the pipe diameter of the gas vent valve 69 is preferably 40 mm or more and 80 mm or less. If the pipe diameter of the gas vent valve 69 is small, it will take a long time to vent the gas, which will put stress on the workers. On the other hand, if the pipe diameter of the gas vent valve 69 is increased, the time required for gas venting will be reduced, but the cost for manufacturing the gas vent valve 69 will increase. According to the study results of the present inventors, when the pipe diameter of the gas vent valve 69 is in the range of 40 mm or more and 80 mm or less, there is a good balance between the manufacturing cost of the gas vent valve 69 and the speed at which gas escapes. It has been found that.
  • FIG. 8 is a diagram showing an example of how the fluid strainer is installed according to the first embodiment.
  • the inflow pipe 62 is connected to one opening of the pipe 92.
  • the other opening of the pipe 92 is connected to one opening of the inlet valve 101.
  • the other opening of the inlet valve 101 is connected to a pipe 91 connected to a seawater inlet.
  • the outflow pipe 63 is connected to one opening of the pipe 93.
  • the other opening of the pipe 93 is connected to the suction port of the seawater pump 102.
  • a discharge port of the seawater pump 102 is connected to one opening of the pipe 94.
  • the other opening of the pipe 94 is connected to one opening of the outlet valve 103.
  • the other opening of the outlet valve 103 is connected to one opening of the piping 95.
  • the other opening of the pipe 95 is connected to a cooling system.
  • the other opening of the gas injection valve 67a is connected to a pipe 96 that is provided inside the ship and supplies compressed air.
  • the other opening of the discharge valve 68a is connected to one opening of the piping 97.
  • the other opening of the pipe 97 is arranged above the foreign matter mixed seawater storage container 110 that stores the foreign matter mixed seawater.
  • the foreign matter mixed seawater container 110 is provided with a filter 111 for separating foreign matter from the discharged foreign matter mixed seawater.
  • FIG. 9 is a flow diagram showing an example of the flow of a method for removing foreign matter from a fluid strainer.
  • FIG. 10A is a diagram showing how foreign matter is deposited on the fluid strainer.
  • FIG. 10B is a diagram showing how air is stirred inside the fluid strainer.
  • FIG. 10C is a diagram showing how foreign matter and seawater are discharged from the fluid strainer using air pressure.
  • FIG. 10D is a diagram showing how foreign matter and seawater are discharged from the fluid strainer using air pressure.
  • seawater 80 containing foreign matter 81 is flowing in the direction of arrow D1 through the inflow pipe 62.
  • Foreign matter 81 contained in seawater 80 is filtered and separated by a strainer cylinder 64.
  • the filtered seawater 82 from which the foreign matter 81 has been separated is discharged in the direction of arrow D2 through the discharge pipe 63.
  • the foreign matter 81 accumulates inside the strainer tube 64 . Due to the flow of seawater 80, most of the foreign matter 81 sticks to a region R1 of the inner side surface region of the strainer tube 64 that is close to the outflow pipe 63.
  • step S1 the inlet and outlet valves of the fluid strainer are closed. Specifically, the worker closes the inlet valve 101 on the inflow pipe 62 side of the fluid strainer 6 and the outlet valve 103 on the outflow pipe 63 side of the fluid strainer 6, and then closes these valves. make it closed.
  • step S2 the gas vent valve is opened. Specifically, a worker performs a valve opening operation of the gas vent valve 69 to bring the gas vent valve 69 into an open state.
  • step S3 air is injected into the strainer tube. Specifically, a worker opens the gas injection valve 67a of the gas injection pipe 67 to start injection of the air 100 into the strainer tube 64. Air 100 is supplied to gas injection tube 67 as shown by arrow D3 in FIG. 10B.
  • step S4 foreign matter is removed by stirring the fluid.
  • the worker keeps the gas injection valve 67a of the gas injection pipe 67 open for a while and continues to inject the air 100 into the strainer tube 64.
  • the injected air 100 stirs the seawater 80 inside the strainer tube 64 and peels off foreign matter 81 attached to the strainer tube 64, as shown in FIG. 10B.
  • the injected air 100 rises through the seawater 80 and is exhausted to the outside from the open gas vent valve 69.
  • the curved tube portion 673 located at the tip side of the gas injection tube 67 is arranged along the circumferential direction of the inner side surface of the strainer tube 64 below the region R1 to which the foreign matter 81 tends to stick. Furthermore, air 100 is ejected from a plurality of ejection holes 673a formed in this curved pipe portion 673 toward the vicinity of region R1, for example, as shown by arrow D4 in FIG. 10B. Then, this air 100 comes into contact with the foreign matter 81 stuck in the region R1, pressure is applied to the foreign matter 81, and peeling of the foreign matter 81 is promoted.
  • this jetting of air 100 causes a circulation of seawater 80 from the outside to the inside inside the strainer tube 64 or inside the main container 61, for example, as shown by arrows D5 to D6 in FIG. 10B.
  • This circulating flow of seawater 80 applies pressure to the foreign matter 81, further promoting the separation of the foreign matter 81.
  • step S5 the valve of the discharge pipe is opened. Specifically, a worker performs an opening operation on the discharge valve 68a of the discharge pipe 68, thereby bringing the discharge valve 68a of the discharge pipe 68 into an open state.
  • step S6 the gas vent valve is closed. Specifically, a worker performs a closing operation of the valve 69a of the gas vent valve 69 to bring the valve 69a of the gas vent valve 69 into a closed state.
  • step S7 the foreign matter mixed fluid containing foreign matter is discharged. Specifically, the worker maintains the valve of the exhaust pipe 68 in the open state and the gas vent valve 69 in the closed state for a while. Then, as shown in FIG. 10C, the injected air 100 continues to accumulate in the upper part of the main body container 61. The accumulated air 100 pushes down the foreign matter mixed seawater 83 containing the foreign matter 81 inside the strainer tube 64, that is, inside the main container 61, as shown by arrow D7 in FIG. 10C, for example. The pressed down foreign matter mixed seawater 83 enters the suction port 682a of the discharge pipe 68, for example, as shown by arrow D8. The foreign matter mixed seawater 83 further advances inside the discharge pipe 68 as shown by arrow D9.
  • the accumulated air 100 pushes the foreign matter mixed seawater 83 further downward as shown by the arrow D10.
  • the foreign matter mixed seawater 83 further advances inside the discharge pipe 68 and is discharged to the outside of the fluid strainer 6.
  • the worker maintains the discharge valve 68a of the discharge pipe 68 in the open state and the valve 69a of the gas vent valve 69 in the closed state until almost all of the foreign matter mixed seawater 83 is discharged.
  • the operator may adjust the flow rate of the injected air 100 when stirring the seawater 80 inside the main container 61 and when discharging the foreign matter-mixed seawater 83. For example, when stirring the seawater 80 inside the main container 61, the worker relatively lowers the flow rate of the injected air 100, and when discharging the foreign matter mixed seawater 83, the worker relatively lowers the flow rate of the injected air 100. You can increase the number accordingly.
  • step S8 gas injection is stopped. Specifically, the worker performs a closing operation of the gas injection valve 67a of the gas injection pipe 67 to bring the gas injection valve 67a of the gas injection pipe 67 into the closed state. By this operation, the injection of air 100 is stopped.
  • step S9 the valve of the discharge pipe is closed. Specifically, a worker performs a closing operation of the discharge valve 68a of the discharge pipe 68 to bring the discharge valve 68a of the discharge pipe 68 into a closed state.
  • step S10 the inlet and outlet valves of the fluid strainer are opened. Specifically, a worker opens the inlet valve 101 on the inflow pipe 62 side of the fluid strainer 6 and the outlet valve 103 on the outflow pipe 63 side of the fluid strainer 6, and then opens these valves. Leave it open. Then, the seawater 80 begins to flow from the inflow pipe 62 to the outflow pipe 63 of the fluid strainer 6, and the fluid strainer 6 is ready for operation.
  • step S11 gas inside the fluid strainer is removed. Specifically, the worker operates the valve 69a of the gas vent valve 69 to open the valve 69a of the gas vent valve 69. Then, the air 100 remaining inside the fluid strainer 6 is exhausted to the outside through the gas vent valve 69. After confirming that the air 100 inside the fluid strainer 6 has been almost completely exhausted to the outside, the worker closes the valve 69a of the gas vent valve 69, and then closes the valve 69a of the gas vent valve 69. Make it.
  • step S12 the discharged foreign matter 81 is processed. Specifically, the worker puts the foreign matter 81 mixed in the foreign matter mixed seawater 83 discharged in step S7 into the foreign matter mixed seawater storage container 110 or the like.
  • the seawater 80 in the strainer tube 64 is stirred by the air 100 injected from the gas injection tube 67, and the foreign matter 81 is separated from the strainer tube 64.
  • the pressure of the air 100 forces the foreign matter mixed seawater 83 containing the foreign matter 81 into the discharge pipe 68 and discharges it to the outside.
  • the foreign matter 81 accumulated in the strainer tube 64 can be discharged to the outside of the fluid strainer 6 without opening or removing the upper lid 65. Furthermore, basically, the foreign matter 81 can be discharged by simply opening and closing valves. In addition, necessary piping and valves are centrally installed in the upper lid 65, allowing the operator to complete the operation with less movement.
  • the foreign matter 81 deposited on the fluid strainer 6 can be more easily removed. That is, the physical burden on the worker associated with the work of discharging foreign matter 81 from the fluid strainer 6 to the outside can be significantly reduced. Moreover, the time required for foreign matter removal work can be significantly shortened.
  • compressed air 100 is used as the gas injected into the strainer tube 64.
  • ships, power plants, factories, and the like are provided with piping through which compressed air 100 is supplied. Therefore, there is no need to newly install equipment for supplying gas to be injected into the strainer tube 64, which reduces the cost of installing the fluid strainer 6 of the first embodiment into piping equipment and reduces the time required for installation. can do.
  • ⁇ Modification of Embodiment 1> A modification of the first embodiment will be described.
  • This modification is an example in which a suction pump is connected to the discharge pipe of a fluid strainer.
  • the pressure of the air injected from the gas injection pipe is applied to the seawater mixed with foreign matter, and the discharge of the seawater mixed with foreign matter is promoted.
  • the suction force by the suction pump is applied to the foreign matter-mixed seawater, and the discharge of the foreign matter-mixed seawater is further promoted.
  • FIG. 11 is a diagram showing an installation mode of a fluid strainer according to a modification of the first embodiment.
  • the opening of the pipe 97 communicating with the discharge pipe 68 is connected to the inlet of the suction pump 104.
  • the outlet of suction pump 104 is connected to one opening of piping 98 .
  • the other opening of the pipe 97 is connected to one opening of the valve 105.
  • the other opening of the valve 105 is connected to a drainage pipe 99 leading to the outside of the ship. Note that the connection states of piping and the like other than the connection states described here are the same as in the first embodiment.
  • FIG. 12 is a flowchart showing an example of the flow of a method for removing foreign matter from a fluid strainer according to this modification.
  • the flow diagram of this modification shown in FIG. 12 differs from the flow diagram of the first embodiment shown in FIG. 9 in steps S6a to S8a surrounded by broken lines, and step S12 is deleted. That is, the contents of steps S1 to S5 and S9 to S11 according to the present modification example shown in FIG. 12 are the same as steps S1 to S5 and S9 to S11 in FIG. 9, which shows the flow of the foreign material removal method according to the first embodiment. Therefore, these steps S1 to S5 and S9 to S11 will be briefly explained here and detailed explanation will be omitted.
  • step S1 the inlet and outlet valves of the fluid strainer are closed.
  • step S2 the gas vent valve is opened.
  • step S3 air is injected into the strainer tube.
  • step S4 foreign matter is removed by stirring the seawater.
  • step S5 the discharge valve 68a of the discharge pipe 68 is opened.
  • step S6a the gas vent valve is closed and the suction pump is activated. Specifically, a worker closes the gas vent valve 69 by closing the gas vent valve 69, thereby blocking the escape route for the injected air 100. Further, the worker performs an operation to start operation of the suction pump 104 to start the operation of the suction pump 104.
  • step S7a the foreign matter mixed fluid containing foreign matter is discharged to the outside of the ship.
  • the worker maintains the operating state of the suction pump 104 and discharges the foreign matter-mixed seawater 83 in the fluid strainer 6 to the outside of the ship through the drainage pipe 99.
  • the worker maintains the injection of air 100 and the operation of the suction pump 104 until almost all of the seawater mixed with foreign substances 83 is discharged.
  • step S8a the injection of gas and the suction pump are stopped. Specifically, the worker closes the gas injection valve 67a of the gas injection pipe 67 to stop the injection of the air 100. Further, the worker performs an operation to stop the operation of the suction pump 104 to stop the suction pump 104. With these operations performed by the worker, the process of discharging the foreign matter mixed seawater 83 is completed.
  • step S9 the valve of the discharge pipe is closed.
  • step S10 the inlet and outlet valves of the fluid strainer are opened.
  • step S11 air inside the fluid strainer 6 is vented. Since the foreign matter has been discharged overboard, unlike the first embodiment, there is no need to dispose of the foreign matter 81.
  • the foreign matter mixed seawater 83 can be forcefully discharged. If the foreign matter mixed seawater 83 can be forcefully discharged, for example, it becomes possible to directly discharge the foreign matter mixed seawater 83 from the bottom of the ship into the ocean. Generally, the bottom of a ship receives relatively strong water pressure from the ocean, and with only the pressure of the air 100 injected from the gas injection pipe 67, the seawater 83 mixed with foreign matter cannot be directly discharged from the bottom of the ship into the ocean. is not easy.
  • the seawater 83 mixed with foreign matter can be discharged at a pressure higher than the water pressure from the ocean, and the seawater 83 mixed with foreign matter can be directly discharged from the bottom of the ship into the ocean.
  • the seawater 83 mixed with foreign matter can be directly discharged into the ocean, it is possible to avoid a situation where the inside of the ship is contaminated with foreign matter 81, and the workers are no longer bothered by strange odors. Further, there is no need to dispose of the foreign matter 81, and the burden on the worker is significantly reduced. Since there is no need to store foreign matter 81 in the engine room of the ship, space saving can be realized. Further, it is possible to eliminate a situation where the floor inside the ship becomes slippery due to foreign objects 81, and the workers can work more safely.
  • the suction pump 104 is preferably a screw pump.
  • a screw pump is a type of pump that uses a screw-shaped rotor to convey an object. Screw pumps are suitable for transporting fluids containing high viscosity or solid materials, and have features such as a simple structure and easy cleaning and maintenance. If the suction pump 104 is a screw pump, it becomes possible to easily discharge the foreign matter mixed seawater 83 containing viscous semi-solid foreign matter such as jellyfish.
  • Embodiment 2 A fluid strainer lid mechanism according to Embodiment 2 of the present invention will be described.
  • FIG. 13A is a diagram when the fluid strainer lid mechanism 7 according to the second embodiment is viewed along the y direction.
  • FIG. 13B is a diagram when the fluid strainer lid mechanism 7 according to the second embodiment is viewed along the x direction.
  • the fluid strainer lid mechanism 7 has an upper lid 65, a gas injection pipe 67, a discharge pipe 68, a gas vent valve 69, a pressure gauge 71, and a safety valve 72, as shown in FIGS. 13A and 13B. That is, the fluid strainer lid mechanism 7 has a configuration in which the main body container 61, the inflow pipe 62, the outflow pipe 63, and the strainer cylinder 64 are removed from the fluid strainer 6 according to the first embodiment.
  • the fluid strainer lid mechanism 7 may have a configuration in which the pressure gauge 71 or the safety valve 72 can be attached or detached. Further, the fluid strainer lid mechanism 7 may have a configuration in which one or both of the pressure gauge 71 and the safety valve 72 are omitted.
  • the upper lid 65 is equipped with necessary piping and valves.
  • the fluid strainer 6 according to the first embodiment can be realized. That is, simply by replacing the existing upper lid 65 with the present fluid strainer lid mechanism 7, the foreign matter discharge function can be added. Therefore, when introducing the fluid strainer 6 according to the first embodiment, the installation work is simplified for the existing fluid strainer, and the construction cost and time required for introducing the fluid strainer 6 can be significantly reduced. can be reduced to
  • fluid strainer is installed in seawater piping equipment of a ship.
  • the embodiments of the present invention are not limited to the above embodiments.
  • fluid strainers may be installed in piping equipment that carries seawater to cool heating elements in facilities such as thermal power plants, nuclear power plants, and paper mills. Further, for example, it may be installed in piping equipment that passes raw water from a dam in a facility such as a hydroelectric power plant or a water purification plant.
  • the present invention is not limited to the above-described embodiments, and includes various modifications. Further, the above-described embodiments have been described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. All of these belong to the scope of the present invention. Furthermore, the numerical values included in the text and figures are merely examples, and the effects of the present invention will not be impaired even if different values are used.
  • the present invention can be used for fluid strainers installed in seawater or water piping equipment in ships, thermal power plants, nuclear power plants, paper factories, hydroelectric power plants, water purification plants, etc.
  • Fluid strainer 61 Main container, 62 Inflow pipe, 63 Outflow pipe, 64 Strain tube, 65 Top cover, 66 Top cover attachment mechanism, 67 Gas injection pipe, 68 Discharge pipe, 69 Gas vent valve, 70 Connection member, 71 Pressure gauge , 72 safety valve

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

La présente invention élimine plus facilement les matières étrangères déposées sur une crépine de fluide.　L'invention concerne une crépine de fluide comprenant : un contenant pour corps ; un cylindre de crépine en forme de cage qui est logé à l'intérieur du contenant pour corps et sépare les matières étrangères du fluide contenant les matières étrangères ; un tube d'entrée qui est ménagé sur le contenant pour corps et amène le fluide à s'écouler dans le cylindre de crépine ; un tube de sortie qui est ménagé sur le contenant pour corps et amène un fluide filtré, à partir duquel les matières étrangères ont été séparées, à s'écouler vers l'extérieur ; un tube d'injection de gaz qui injecte, dans le cylindre de crépine, un gaz pour agiter le fluide à l'intérieur du cylindre de crépine ; et un tube d'évacuation qui évacue un fluide mélangé de matières étrangères, qui est un fluide qui est agité par le gaz et dans lequel les matières étrangères sont mélangées.
PCT/JP2023/014786 2022-04-18 2023-04-11 Crépine de fluide, mécanisme de couvercle pour crépine de fluide, et procédé d'élimination de matières étrangères pour crépine de fluide Ceased WO2023204114A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380023099.4A CN118742369A (zh) 2022-04-18 2023-04-11 流体过滤器、流体过滤器用盖机构以及流体过滤器的异物去除方法
KR1020247033301A KR20240158325A (ko) 2022-04-18 2023-04-11 유체 여과기, 유체 여과기용 덮개 기구 및 유체 여과기의 이물질 제거 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022068372A JP7343866B1 (ja) 2022-04-18 2022-04-18 流体こし器、流体こし器用蓋機構、および流体こし器の異物除去方法
JP2022-068372 2022-04-18

Publications (1)

Publication Number Publication Date
WO2023204114A1 true WO2023204114A1 (fr) 2023-10-26

Family

ID=87934795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/014786 Ceased WO2023204114A1 (fr) 2022-04-18 2023-04-11 Crépine de fluide, mécanisme de couvercle pour crépine de fluide, et procédé d'élimination de matières étrangères pour crépine de fluide

Country Status (4)

Country Link
JP (1) JP7343866B1 (fr)
KR (1) KR20240158325A (fr)
CN (1) CN118742369A (fr)
WO (1) WO2023204114A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011178U (fr) * 1973-05-25 1975-02-05
JPH0445506U (fr) * 1990-08-20 1992-04-17
JPH10121967A (ja) * 1996-10-16 1998-05-12 Mitsubishi Heavy Ind Ltd 海水こし器
JP2003190716A (ja) * 2001-12-26 2003-07-08 Kawasaki Heavy Ind Ltd 超音波洗浄装置を備えたこし器とその洗浄方法
JP3127237U (ja) * 2006-09-14 2006-11-24 株式会社▲高▼澤製作所 海水こし器
WO2008114518A1 (fr) * 2007-03-22 2008-09-25 Takerou Yoshida Appareil de filtrage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0121967B1 (ko) 1994-11-29 1997-11-22 박성규 양방향 방향제어가 가능한 버스확장기

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011178U (fr) * 1973-05-25 1975-02-05
JPH0445506U (fr) * 1990-08-20 1992-04-17
JPH10121967A (ja) * 1996-10-16 1998-05-12 Mitsubishi Heavy Ind Ltd 海水こし器
JP2003190716A (ja) * 2001-12-26 2003-07-08 Kawasaki Heavy Ind Ltd 超音波洗浄装置を備えたこし器とその洗浄方法
JP3127237U (ja) * 2006-09-14 2006-11-24 株式会社▲高▼澤製作所 海水こし器
WO2008114518A1 (fr) * 2007-03-22 2008-09-25 Takerou Yoshida Appareil de filtrage

Also Published As

Publication number Publication date
CN118742369A (zh) 2024-10-01
KR20240158325A (ko) 2024-11-04
JP7343866B1 (ja) 2023-09-13
JP2023158494A (ja) 2023-10-30

Similar Documents

Publication Publication Date Title
CN104039414A (zh) 针对循序反洗进行自动控制的多笼式压载水过滤装置及其方法
CN109641245B (zh) 高压分离器清洁方法和装置
JP7343866B1 (ja) 流体こし器、流体こし器用蓋機構、および流体こし器の異物除去方法
KR101064740B1 (ko) 선박의 이물질 제거장치
CN209500960U (zh) 一种无阻力冲撞y型过滤器
JP3539680B2 (ja) 汚液の濾過方法及びその装置
JP2025145813A (ja) 流体こし器、こし筒、および流体こし器の異物除去方法
JP2009262065A (ja) タンク清掃装置及び清掃方法
JP2020164563A (ja) タールデカンター装置、安水分離方法、及びメッシュ体洗浄装置
JP4919694B2 (ja) 放射性廃棄物回収装置
CN212669417U (zh) 一种连续真空抽排固液分离处理装置
KR200364124Y1 (ko) 투명 커버를 갖는 여과기
CN222723699U (zh) 一种水质污染防治用污水处理设备
JP2010234228A (ja) 膜分離装置の洗浄装置および洗浄方法
JP2005257441A (ja) 原子炉発電施設のプールの清掃方法及び装置
JP2008105503A (ja) 船舶または浮体構造物の海水供給システム
CN217698079U (zh) 一种水处理用活性炭过滤罐
JP3534724B2 (ja) フィルタの洗浄装置及び洗浄方法
JP4883965B2 (ja) 立軸ポンプ
JPS6318419Y2 (fr)
SE532438C2 (sv) Anordning för en amalgamavskiljare
JP2005081211A (ja) ドレン清水化用装置における油水分離式オーバフロー構造
KR200354267Y1 (ko) 활어수족관 정화장치
CA2262887C (fr) Appareil de filtration centrifuge
CN207567926U (zh) 全自动排污设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23791762

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202380023099.4

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 20247033301

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020247033301

Country of ref document: KR

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23791762

Country of ref document: EP

Kind code of ref document: A1