TW201429536A - Oil-water separating device - Google Patents

Abstract

The present invention provides an oil-water separating device, which comprises an oil-water separating tank. The oil-water separating tank has its interior in a sealed state and comprises a main chamber, an oil collection chamber, an overflow weir, a liquid discharging chamber, a liquid guiding pipe communicated between the main chamber and the liquid discharging chamber, and a liquid discharging pipe communicated from the liquid discharging chamber to the outside. While guiding the waste liquid to the main chamber, the present invention employs the configuration of the main chamber, the oil collection chamber, the overflow weir and the liquid discharging chamber to achieve the purpose of oil-water separation, and utilizes the function of the oil-water separating tank in the sealed state to inject the liquid with a predetermined pressure from the liquid discharging pipe.

Description

Oil water separation device

The invention relates to an oil-water separation device, in particular to an oil-water separation device suitable for removing oil from a cutting fluid of a CNC machine tool.

For the processing equipment of the processed cutting waste liquid, such as the Taiwan Patent No. M415739 patent, the floating disk is suspended on the cutting waste liquid, and the floating disk has a liquid inlet pipe and a liquid discharge pipe, and the liquid inlet pipe Providing a flow of the cutting waste liquid into the floating tray, the liquid discharging pipe is connected to the liquid inlet pipe, and a pump is installed on the oil water separating barrel, and the pump is connected to the liquid discharging by a connecting pipe a tube and the oil-water separation barrel, the pump system is configured to extract the cutting waste liquid into the oil-water separation barrel.

Although the above-mentioned oil-water separation device can be used to separate the cooling water and the cutting oil in the cutting waste liquid, it has the following defects:

1. The oil-water separation tank has a cooling water outlet, a cutting waste oil outlet and a plurality of partitions disposed inside, and the partitions are only used to reduce the flow rate of the cutting waste liquid. However, since the space above the partitions is in a communicating state, when the connecting pipe introduces the cutting waste liquid into the oil water separating barrel, the grease containing moisture will flow rapidly over the partitions, resulting in cutting waste liquid. Before the oil-water separation has been completed, it will be discharged from the cutting waste oil outlet. The effect of oil-water separation is not good.

Second, because the pump is a self-priming pump, all self-priming pumps rely on the precision meshing and sealing of each part to prevent the expected use function. Therefore, the parts must be precision-made and the cost is relatively improved. If the waste liquid contains a lot of impurities and iron filings, it is also easy to get stuck.

Third, because the pump is a gear-type pump and will self-prime, intermittently inhaling water or air can work, but the gears must be precisely meshed between them to not leak, and can generate vacuum suction, but the cutting fluid The above scum is that the scum of the surface of the workpiece is doped with iron scraps, cast iron ash, dust and other impurities at many working sites. When scum containing impurities is sucked into the interior of the pump, impurities will cause wear between the gears. Increasing the backlash may also cause the self-priming pump to leak.

4. When the scum is not a very ideal liquid oil, but is a sludge or a bean-like saponified oil, which may cause the floating tray suction port to be blocked, or the floating tray is tilted by the discharge tube, the The suction port of the floating plate may not absorb the oil and water, only the air is sucked. If the gear-type pump is continuously operated for several minutes, if no oil or water is sucked into the cooling and lubrication, the heat may be stuck or even damaged.

Therefore, an object of the present invention is to provide an oil-water separation device which is excellent in oil-water separation effect and can effectively remove the oil slick of the cutting fluid.

Therefore, the oil-water separation device of the present invention comprises an oil-water separation barrel having a main chamber, a collecting chamber disposed on one side of the main chamber, and a main chamber and the collecting chamber. Between the overflows, a liquid discharge chamber disposed on the other side of the main chamber, a liquid guiding tube communicating between the main chamber and the liquid discharging chamber, and a liquid discharging tube connected to the outside by the liquid discharging chamber, the main The chamber has an inlet, the liquid level of the main chamber is higher than the liquid level of the oil collecting chamber and the liquid discharging chamber, and the liquid guiding tube has an introduction port and a similar to the bottom of the main chamber The inlet port is oppositely disposed and communicates to the outlet port of the outlet chamber, the inlet being located between the pilot port and the weir.

The effect of the invention is that the arrangement of the main waste chamber inside the barrel, the oil collecting chamber, the overflow weir, the liquid discharging chamber, the liquid guiding tube and the liquid discharging tube can make the cutting waste liquid The separation effect of the oil and water is better. In addition, the cutting fluid separated by the oil and water can be directly transported to the processing part of the CNC machine tool for cooling, and the overall structure is simple and the manufacturing assembly is easy.

10‧‧‧ liquid storage tank

11‧‧‧First space

20‧‧‧Steam collecting tank

21‧‧‧Second space

22‧‧‧Overflow

24‧‧ ‧ partition

25‧‧‧ Fixing frame

30‧‧‧Slick suction unit

31‧‧‧汲 suction parts

311‧‧‧Motor

312‧‧‧Shell

313‧‧‧ Impeller

32‧‧‧ suction pipe

321‧‧‧Introduction paragraph

322‧‧‧ suction port

323‧‧‧Export

40‧‧‧Water level control unit

41‧‧‧Refilling bucket

42‧‧‧rehydration tube

43‧‧‧Water level control tube

431‧‧‧port

50‧‧‧ Oil-water separation barrel

51‧‧‧The main room

511‧‧‧ entrance

52‧‧‧ oil collection room

521‧‧‧Draining tube

522‧‧‧Rotary valve

53‧‧‧Overflow

54‧‧‧Liquid chamber

55‧‧‧ catheter

551‧‧‧Administrative parts

552‧‧‧Adjustment ring kit

553‧‧‧Threaded Department

554‧‧‧Import port

555‧‧‧Export port

56‧‧‧Draining tube

10'‧‧‧ reservoir

11’‧‧‧First Space

20'‧‧‧Slick collection tank

21’‧‧‧Second space

22’‧‧‧ overflow

23’‧‧‧ bottom wall

24’‧‧‧Wall

10"‧‧‧ reservoir

11”‧‧‧First space

20”‧‧·Scum oil collection tank

21”‧‧‧Second space

22”‧‧‧Overflow

30”‧‧·Slick suction unit

323"‧‧‧Leading paragraph

100‧‧‧Tool machine tools

Other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings in which: FIG. Figure 2 is a cross-sectional view taken along line II-II of Figure 1; Figure 3 is a cross-sectional view taken along line III-III of Figure 1; Figure 4 is a partially enlarged schematic view showing one of the preferred embodiments The liquid storage tank cooperates with a oil sump collecting tank, a slick oil absorbing unit and a water level control unit; FIG. 5 is a partially enlarged schematic view of a second preferred embodiment of the present invention, illustrating a liquid storage tank matched with a slick oil collecting tank , a slick suction unit and a water level control unit; FIG. 6 is a partially enlarged schematic view of a third preferred embodiment of the present invention, illustrating a liquid storage tank coupled with a oil sump collection tank, a slick suction unit and a water level control unit; A schematic view of the installation of the above preferred embodiment of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the first preferred embodiment of the oil-water separation device of the present invention can be applied to the oil-water separation of the cutting waste liquid of the CNC machine tool, and includes a liquid storage tank 10 and a float. The oil collecting tank 20, an oil absorbing unit 30, a water level control unit 40, and an oil water separating barrel 50.

The reservoir 10 has a first space 11 for receiving cutting waste and having an opening facing upward.

The oil sump 20 is disposed on the side of the liquid storage tank 10, and has a second space 21 which is spaced apart from the first space 11 and has an opening upward, and the first and second spaces 11 are connected. An overflow port 22 of 21, a partition plate 24 for forming the first space 11 and the second space 21, and a fixing frame 25 disposed above the first space 11, the overflow port 22 approaching The openings of the first and second spaces 11, 21 are. In this embodiment, the liquid storage tank 10 is integrally coupled to the oil sump collecting tank 20, and the overflow opening 22 is disposed at the top of the partitioning plate 24.

Referring to FIG. 4, the oil absorbing unit 30 is mounted above the oil sump 20 and has a suction power member 31 and a connection thereto. An oil suction pipe 32 of the suction power unit 31, the suction power unit 31 has a motor 311 disposed above the second space 21 and fixed to the fixing frame 25, a casing 312 connected to the motor 31 and An impeller 313 is mounted in the housing 312 and is driven by the motor 311. The oil suction pipe 32 has a lead-in section 321 connected to one side of the housing 312, and is disposed at the end of the lead-in section 321 with the opening facing upward. The oil suction port 322 and the lead-out portion 323 connected to the other side of the casing 312 are located lower than the bottom edge of the overflow port 22 and below the liquid level of the oil sump collecting groove 20.

Referring to FIG. 4, the water level control unit 40 is disposed above the oil sump collecting tank 20, and the liquid level of the oil sump collecting tank 20 can be controlled to remain higher than the oil suction port 322 of the oil absorbing pipe 32, and has a a liquid filling tank 41 above the oil sump collecting tank 20, a liquid filling pipe 42 extending from the liquid filling tank 41 to the second space 21, and a water level control pipe 43 extending from the liquid filling tank 41 toward the liquid surface of the second space 21. The water level control tube 43 has a port 431 for controlling the liquid level, and the port 431 is located lower than the bottom edge of the overflow port 22 and above the oil suction port 322.

The oil-water separation tank 50 of the present embodiment has a sealed state inside, and has a main chamber 51, a collecting chamber 52 disposed on one side of the main chamber 51, and a main chamber 51 and the collecting chamber. a weir 53 between 52, a liquid outlet chamber 54 disposed on the other side of the main chamber 51, a liquid conduit 55 communicating between the main chamber 51 and the liquid outlet chamber 54, and a conduit The liquid discharge chamber 54 is connected to an external liquid discharge pipe 56. The main chamber 51 and the oil collecting chamber 52 are in communication with the top of the liquid discharging chamber 54. The liquid level of the main chamber 51 is higher than the liquid level of the oil collecting chamber 52 and the liquid discharging chamber 54, and Have one to connect to the An inlet 511 of the lead-out section 323 of the oil suction pipe 32, the liquid guiding pipe 55 has a main pipe member 551 and an adjusting ring set 552 that is adjustably screwed to the main pipe member 551, the main pipe member 551 has a corresponding discharge liquid a threaded portion 553 of the chamber 54 is disposed in the liquid outlet chamber 54 and is screwed to the threaded portion 553. The main control member 551 has an introduction port 554 that is close to the bottom of the main chamber 51. The inlet 511 is located between the guiding port 554 and the weir 53. The adjusting ring set 552 has a lead-out port 555 disposed opposite to the inlet port 554 and communicating to the liquid outlet chamber 54. The liquid level of the chamber 51 is higher than the position of the outlet port 555, and the position of the overflow port 53 is higher than the outlet port 555, and the position of the outlet port 555 is also higher than the outlet pipe 56. In the present embodiment, the longitudinal height of the oil-water separation drum 50 is between 300 mm and 2000 mm, and the greater the longitudinal height of the oil-water separation drum 50, the better the oil-water separation effect. In addition, a row of oil pipes 521 and a rotary valve 522 attached to the oil drain pipe 521 are disposed at the bottom of the oil collecting chamber 52. With the setting of the rotary valve 522, the oil-water separation can be separated from the tub 50 when the operation is stopped. Keep it airtight.

When the oil sumping unit 30 and the water level control unit 40 are both installed and positioned on the oil sump collecting tank 20, the liquid filling tank 11 of the water level control unit 40 is prefilled with replenishing liquid, and the liquid storage tank 10 is set. At the bottom of the CNC machine tool, the cutting waste liquid after cutting is directly received.

When the cutting waste liquid containing the oil and fat continues to fall into the first space 11 of the liquid storage tank 10, the light-weight grease will be suspended in the liquid level of the first space 11, and when the liquid level exceeds the overflow port 22 When the bottom edge is The flow port 22 overflows into the second space 21, and when the liquid level of the second space 21 is higher than the oil suction port 322 and between the oil suction port 322 and the bottom edge of the overflow port 22, the floating The motor 311 of the oil suction unit 30 is activated to drive the impeller 313 to rotate in the housing 312 and generate a sucking action, so that the water-containing grease suspended in the liquid surface can be sucked into the lead-in section 321 from the oil suction port 322, and The lead-out section 323 is led out and introduced into the interior of the main chamber 51 via the inlet 511.

The water-containing fat and oil transferred to the main chamber 51 of the oil-water separation tank 50, the moisture content in the grease is still high, and the light-weight grease is suspended on the top of the main chamber 51, and the liquid level of the main chamber 51 is utilized. The height is greater than the height of the liquid level of the oil collecting chamber 52, so that the oil can be led to the oil collecting chamber 52 through the overflow weir 53 and a second oil-water separation action is generated, and the overflow weir 53 is utilized. The position higher than the outlet port 555 and the outlet port 555 is also higher than the function of the outlet pipe 56, and the cutting waste liquid is guided to the liquid discharge chamber 54 from the liquid outlet tube 55, and from the outlet port 55 After overflowing, it can be output through the discharge pipe 56.

Therefore, when the oil-and-liquid cutting fluid 30 is continuously pumped into the oil-water separation drum 50 by the oil absorbing unit 30, the inside of the oil-water separation drum 50 is kept in a sealed state, so that the inside of the oil-water separation drum 50 can be kept larger than the external pressure. The state is such that the cutting fluid separated by the oil and water can be ejected from the discharge pipe 56 and the processed portion of the machine tool is cooled.

During the above-mentioned oil slick removal operation, once the liquid level of the second space 21 is lower than the port 431 of the water level control pipe 43, the external air can enter the liquid filling tank 41 following the port 431, and the utilization is utilized. The supplement In the liquid tank 41, external pressure balance acts, and the replenishing liquid contained in the inside of the refilling tank 41 flows into the second space 21 through the refilling pipe 42 until the liquid level rises to the port 431, the water level The control unit 40 can stop the rehydration, thereby ensuring that the liquid level position is not lower than the suction port 322 and ensuring smooth oil removal. Before the use, the user can adjust the adjusting ring set 552 according to the height of the grease suspended in the liquid level in the main chamber 51, that is, the adjusting ring set 552 only needs to be rotated relative to the supporting member 551, that is, The height of the lead-out port 555 can be adjusted.

Therefore, the effects of the above preferred embodiments of the present invention can be summarized as follows:

1. The arrangement of the main chamber 51, the oil collection chamber 52, the overflow weir 53, the liquid outlet chamber 55, the liquid guiding tube 55 and the liquid outlet tube 56 inside the oil-water separation tank 50 can be cut. The speed and pressure of the waste liquid introduced into the interior of the main chamber 51 from the inlet 511 do not affect the oil-water separation effect, and the oil-water separation tank 50 can produce a better oil-water separation effect.

2. The first oil-water separation can be effectively performed in the oil sump 20 by using the liquid storage tank 10 and the oil sump 20, the oil absorbing unit 30 and the oil-water separation tank 50. By using the cooperation of the motor 311, the impeller 313 and the oil suction pipe 32 of the oil slick suction unit 30, the water-containing grease can be efficiently pumped to the oil-water separation drum 50 for the second oil-water separation, and the oil-water separation can be surely performed. And oil slick removal operations.

3. The inside of the oil-water separation barrel 50 is closed, and when the water-containing grease is continuously input into the main chamber 51, the inside of the oil-water separation barrel 50 is maintained at a state larger than the external air pressure, and the liquid outlet tube 56 can be made Automatic pair The processing part of the machine tool performs the action of discharging the chip liquid.

4. With the setting of the water level control unit 40, the liquid level of the second space 21 can be automatically adjusted, and the oil removal can be smoothly performed.

5. The motor 311 of the oil absorbing unit 30 is disposed at the top of the oil sump 20, and the scroll pump formed by the housing 312 and the impeller 313 is not only easy to maintain, but also low in cost, and because The scroll pump is suitable for dirt containing impurities (slag), that is, there is a large gap between the impeller 313 and the casing 312, so even if the impurities (slag) and particles of 10 mm or less can be smoothly By the above, the existing oil-water separation device can be solved because the pump is a self-priming pump, and there is a problem that the waste liquid contains a large amount of impurities, iron filings, and is easily stuck.

6. Even if the scum is not a very ideal liquid oil, but is a sludge or a bean-like saponified oil, the motor 311 that activates the oil absorbing unit 30 is used to drive the impeller 313 to rotate in the casing 312. The gear-type pump of the existing oil-water separation device does not suck oil or water into the cooling, lubrication, and the heat is stuck or even damaged.

In addition, the inside of the oil-water separation barrel 50 of the first embodiment is in a sealed state. If the inside of the oil-water separation barrel 50 is not in a sealed state, a pump (not shown) is added to the lead-out section 323 of the oil suction pipe 32, The flow rate of the cutting fluid in the main chamber 51 and the inside of the liquid guiding tube 55 can also be increased, so that the liquid discharging tube 56 can automatically discharge the cutting liquid from the processing portion of the machine tool.

As shown in FIG. 5, a second preferred embodiment of the oil-water separation device of the present invention differs from the first preferred embodiment in that the oil slick collection a groove 20' is disposed in the first space 11' of the liquid storage tank 10', and the oil sump collecting groove 20' has a bottom wall 23', and a peripheral wall 24' extending upward from the periphery of the bottom wall 23'. The bottom wall 23' and the peripheral wall 24' together define the second space 21', which is disposed at the top of the peripheral wall 24' between the first and second spaces 11', 21'. The second preferred embodiment of the present invention can achieve the same objects and effects as the first embodiment, and the oil sump collecting tank 20' can be detached from the liquid storage tank 10', which is more convenient to use.

As shown in FIG. 6, a third preferred embodiment of the oil-water separation device of the present invention differs from the first preferred embodiment in that the liquid storage tank 10" and the oil sump collecting tank 20" are separated. The liquid storage tank 10" is disposed on the side of the oil sump 20", and the overflow port 22" of the oil sump 20" is tubular and communicates with the first space 11 of the liquid storage tank 10" Between the second space 21 and the third preferred embodiment of the present invention, the same objects and effects as those of the first and second embodiments can be achieved.

It is worth mentioning that the waste liquid suitable for the oil absorbing device of the present invention includes cutting waste liquid, industrial waste liquid, and the like of a CNC processing machine. As exemplified in the third embodiment, the liquid storage tank 10" is disposed at the bottom of the CNC machine tool 100, and directly receives the cutting waste liquid after cutting, and passes through the take-up section 323" of the oil absorbing unit 30". The discharged oil will be further combined with the oil-water separation tank (with reference to 3) for further oil-water separation.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

323‧‧‧Export

50‧‧‧ Oil-water separation barrel

51‧‧‧The main room

52‧‧‧ oil collection room

521‧‧‧Draining tube

522‧‧‧Rotary valve

53‧‧‧Overflow

54‧‧‧Liquid chamber

55‧‧‧ catheter

552‧‧‧Adjustment ring kit

555‧‧‧Export port

56‧‧‧Draining tube

Claims (10)

An oil-water separation device comprising: a water-oil separation tank having a main chamber, a collecting chamber disposed on one side of the main chamber, and an overflow weir disposed between the main chamber and the collecting chamber a liquid discharge chamber disposed on the other side of the main chamber, a liquid guiding tube connected between the main chamber and the liquid discharging chamber, and a liquid discharging tube connected to the outside through the liquid discharging chamber, The main chamber has an inlet, the liquid level of the main chamber is higher than the liquid level of the oil collecting chamber and the liquid discharging chamber, and the liquid guiding tube has an introduction port and a guiding port which is close to the bottom of the main chamber An outlet port opposite to the inlet port and connected to the outlet chamber, the inlet being located between the pilot port and the weir. The oil-water separation device according to claim 1, wherein the oil-water separation tank is internally sealed, and the main chamber and the oil collection chamber are in communication with the top of the liquid discharge chamber. The oil-water separation device according to claim 2, wherein the oil-water separation bucket has a overflow weir position higher than the outlet port, and the outlet port is located higher than the outlet pipe. The oil-water separation device according to claim 1 or claim 2, wherein the liquid-water separation tube of the oil-water separation barrel further has a main pipe member and an adjusting ring sleeve that is adjustably screwed to the main pipe member, the main pipe member has A pair of threaded portions of the liquid discharge chamber are disposed in the liquid discharge chamber and are screwed to the threaded portion, and the lead-out port is disposed in the adjusting ring set. The oil-water separation device according to claim 1 or claim 2, further comprising a liquid storage tank, an oil collecting tank disposed on one side of the liquid storage tank, and an installation An oil absorbing unit on the oil sump, the liquid storage tank has a first space with an opening facing upward, the oil absorbing tank having a second portion which is separable from the first space and has an opening upward a space and an overflow port connectable to the first and second spaces, the overflow port being closer to the opening of the first and second spaces, the oil absorbing unit having a suction power member and a connection to the suction An oil suction pipe of the power component, the oil suction pipe has an oil suction opening with an opening upward and a lead-out section extending to the outside of the first and second spaces, the oil suction port is located lower than the bottom edge of the overflow port, and the outlet section Connect to the main chamber. The oil-water separation device of claim 5, wherein the sucking power unit of the oil absorbing unit has a motor disposed above the second space, a housing connected to the motor, and a housing mounted on the housing An oil impeller inside the body and driven by the motor, the oil suction pipe further has a lead-in section connected to one side of the casing, the lead-out section is connected to the other side of the casing, and the oil suction port is disposed at the introduction section. The oil-water separation device according to claim 6, further comprising a water level control unit disposed above the oil sump, the water level control unit controls the liquid level of the oil sump to be kept close to the oil absorption The suction port of the tube. The oil-water separation device of claim 6, wherein the liquid storage tank is integrally coupled to the oil sump, and the oil recovery device further comprises a first space and the second space. a partition, the overflow opening being disposed at the top of the partition. The oil-water separation device according to claim 6, wherein the oil sump is disposed in the first space of the liquid storage tank, and the overflow port is disposed at the boundary The top of the wall of the oil sump between the first and second spaces. The oil-water separation device according to claim 6, wherein the liquid storage tank is disposed at one side of the oil sump, and the overflow port of the oil sump is tubular and communicates with the first of the liquid storage tank. Between the space and the second space.