CN111750146A - Full-automatic gas discharge valve for self-priming pump and working method thereof - Google Patents
Full-automatic gas discharge valve for self-priming pump and working method thereof Download PDFInfo
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- CN111750146A CN111750146A CN202010657411.3A CN202010657411A CN111750146A CN 111750146 A CN111750146 A CN 111750146A CN 202010657411 A CN202010657411 A CN 202010657411A CN 111750146 A CN111750146 A CN 111750146A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000037452 priming Effects 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
- F04D9/006—Priming of not self-priming pumps by venting gas or using gas valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a full-automatic gas discharge valve for a self-priming pump and a working method thereof, the full-automatic gas discharge valve comprises a self-priming pump, the input end of the self-priming pump is fixedly connected with a water inlet pipeline, the other end of the water inlet pipeline is arranged in a water pool, the output end of the self-priming pump is fixedly connected with a water outlet pipeline, the water outlet pipeline is provided with a check valve, the position between the check valve and the output port of the self-priming pump on the water outlet pipeline is connected with the full-automatic gas discharge valve through a bypass pipeline, the check valve is arranged on the water outlet pipeline of the self-priming pump, a suction inlet of a self-priming pump body is provided with a flap valve, after the self-priming pump stops, because the check valve and the flap valve are closed simultaneously or sequentially, residual pressure exists in a pump cavity, the pump cavity can continuously bear pressure after the pump cavity stops, the self-sucking pump is prevented from continuing bearing pressure under the state of stopping the pump, the pump body is effectively protected, and the service life of the self-sucking pump is prolonged.
Description
Technical Field
The invention belongs to the technical field of self-sucking pumps, and particularly relates to a full-automatic gas discharge valve for a self-sucking pump and a working method thereof.
Background
The self-priming pump belongs to a self-priming centrifugal pump and has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, stronger self-priming capability and the like.
At present, the known self-priming pump is divided into an internal mixing type and an external mixing type, and the internal mixing type is divided into two types, namely a spraying device and a non-spraying device. The utility model discloses current utility model sprinkling irrigation self priming pump (authorized bulletin number CN2292927Y) and a large-traffic high-lift self priming pump (authorized bulletin number CN2541639Y) all are interior formula self priming pump that mixes, be the mainstream product of present interior formula self priming pump that mixes, they respectively have the advantage also respectively have the shortcoming, wherein preceding utility model is the interior formula self priming pump that mixes that does not have injection apparatus, its water pump efficiency is higher but the exhaust time is the time of intaking comparatively long promptly, then a utility model is the interior formula self priming pump that mixes that has injection apparatus, its exhaust time is the time of intaking comparatively short but water pump efficiency is lower promptly. This is because the inlet channel of gas-liquid mixture passageway and normal during operation when they exhaust is same passageway, and in the preceding utility model, the inlet channel does not have injection apparatus promptly and is accessible, and consequently the water pump efficiency when normal operation is higher, but when starting the exhaust, the gas-liquid mixture is insufficient, so the exhaust time is the time of intaking comparatively long promptly. The latter utility model has injection apparatus at inhalant canal, consequently when starting the exhaust, the gas-liquid mixture is more abundant, so the exhaust time is the time of intaking relatively short promptly, but at normal during operation, injection apparatus has become the obstacle in the inhalant canal, therefore water pump efficiency is lower.
The self-priming pump can enter a completely-drained state only after gas is exhausted due to the fact that gas in a pump cavity and a water inlet pipeline is firstly exhausted in an initial state of operation of the self-priming pump. When self-priming pump outlet pipe-line system installs check valve and gate valve, the centrifugal pump is when the start-up, because of preventing and avoiding the heavy current operation, conventional operation method is that the gate valve starts the water pump to close, so after the self-priming pump starts, the unable discharge of gas in the pump chamber and the intake pipe, the self-priming pump just can not get into normal running state.
Therefore, it is desirable to design a fully automatic gas discharge valve for a self-priming pump, which is designed to solve this problem and is a dedicated kit for the self-priming pump in the above working environment.
Disclosure of Invention
The invention aims to provide a full-automatic gas discharge valve for a self-priming pump, which is characterized in that after the self-priming pump is started, gas in a cavity of the self-priming pump is sucked in through an air inlet of an exhaust channel of the full-automatic gas discharge valve and is guided into a water pool through a flow guide pipe on an air outlet of the full-automatic gas discharge valve, and the gas in the self-priming pump is discharged; during the working process of the self-priming pump, a medium is introduced into the valve cavity through a water outlet pipeline of the self-priming pump, a valve diaphragm of the valve cavity pushes the valve shaft upwards under the action of the medium, the top end of the valve shaft is inserted into the air outlet of the valve body to close the full-automatic gas discharge valve, the flow of the self-priming pump is kept to be larger than or equal to gallons, and the full-automatic gas discharge valve is in a closed state; after the self-priming pump is closed, the valve shaft automatically resets under the action of the spring to open the exhaust port of the valve body, the valve diaphragm returns to the initial position under the pushing of the valve shaft, and a small amount of solid particles are remained in the valve cavity after the valve diaphragm resets, namely, when the self-priming pump works next time, the solid particles are discharged through the air inlet of the exhaust passage when air is discharged, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a full-automatic gas discharge valve for a self-sucking pump comprises a self-sucking pump, wherein the input end of the self-sucking pump is fixedly connected with a water inlet pipeline, the other end of the water inlet pipeline is arranged in a water pool, the output end of the self-sucking pump is fixedly connected with a water outlet pipeline, a check valve is arranged on the water outlet pipeline, and the water outlet pipeline is positioned between the check valve and the output port of the self-sucking pump and is connected with a full-automatic gas discharge valve through a bypass pipeline;
the full-automatic gas discharge valve comprises a valve body, a valve cover and a valve shaft, wherein a valve body fixing frame is arranged on the valve cover, the valve body is fixedly connected with the valve cover through a fastening screw, a valve cavity is formed in the middle of the joint of the valve body and the valve cover, the valve shaft is vertically arranged in the valve cavity, a valve diaphragm is horizontally arranged in the valve cavity, the valve diaphragm is of a wedge-shaped structure in the valve cavity, a supporting seat for erecting the valve shaft is arranged on the surface of the valve diaphragm, a bottom end fixing frame of the valve shaft is arranged on the supporting seat on the surface of the valve diaphragm, the top end of the valve shaft is arranged in the valve body, a guide cavity for moving the valve shaft is formed in the valve body, a spring mounting seat is fixedly arranged at the lower end of the valve shaft, which is positioned in the guide cavity of the valve body, a spring is fixedly arranged on the spring mounting seat of the valve, the valve shaft and the air outlet of the valve body are collinear in the vertical direction;
an exhaust passage air inlet is formed in one side, located in the valve cavity, of the valve body, the top end of the exhaust passage air inlet is communicated with an air outlet of the valve body, and the bottom end of the exhaust passage air inlet penetrates through the valve cover to be connected with a bypass pipeline of a water outlet pipeline of the self-priming pump.
As a further scheme of the invention: the bottom surface of the valve cover is provided with a blank cap, and the blank cap is fixedly connected with the valve cover through a fastening screw.
As a still further scheme of the invention: and a supporting guide post is fixedly arranged on the bottom surface of the valve diaphragm, and the supporting guide post on the bottom surface of the valve diaphragm is erected on the surface of the blank cap.
As a still further scheme of the invention: one side of the valve cavity is provided with a channel for leading in a medium, and the channel is communicated with an air inlet of an exhaust channel of the valve body.
As a still further scheme of the invention: the joint of the valve shaft and the top of the valve cavity is sealed by an oil seal.
As a still further scheme of the invention: and an O-shaped ring is arranged at the joint of the valve shaft and the top of the valve body guide cavity.
As a still further scheme of the invention: and a plurality of positioning pins are arranged on the surface of the valve shaft along the vertical direction.
As a still further scheme of the invention: the oil nozzle is arranged at the top of one side of the valve body, and the tail end of the oil nozzle is the same as a guide rail of the valve shaft in the valve body.
As a still further scheme of the invention: the air outlet of the valve body is connected with a flow guide pipe, and the tail end of the flow guide pipe is arranged in the water pool.
As a still further scheme of the invention: a working method of a full-automatic gas discharge valve for a self-priming pump comprises the following specific steps:
the method comprises the following steps: after the self-priming pump is started, gas in a cavity of the self-priming pump is sucked in through an air inlet of an exhaust channel of a full-automatic gas discharge valve and is guided into a water pool through a flow guide pipe on an air outlet of the full-automatic gas discharge valve, and the gas in the self-priming pump is discharged;
step two: in the working process of the self-priming pump, a medium is introduced into the valve cavity through a water outlet pipeline of the self-priming pump, a valve diaphragm of the valve cavity pushes the valve shaft upwards under the action of the medium, the top end of the valve shaft is inserted into the air outlet of the valve body to close the full-automatic gas discharge valve, the flow of the self-priming pump is kept to be larger than or equal to 5 gallons, and the full-automatic gas discharge valve is in a closed state;
step three: after the self-priming pump is closed, the valve shaft automatically resets under the action of the spring to open the exhaust port of the valve body, the valve diaphragm returns to the initial position under the pushing of the valve shaft, and a small amount of solid particles are remained in the valve cavity after the valve diaphragm resets, namely when the self-priming pump works next time, the solid particles are discharged through the air inlet of the exhaust passage when gas is discharged.
Compared with the prior art, the invention has the beneficial effects that:
1. the air in the pump cavity and the water inlet pipeline of the self-priming pump after being started can be effectively and quickly discharged through the air inlet of the exhaust passage on the full-automatic air discharge valve, so that the self-priming pump can quickly enter a normal working state;
2. in the drainage pipeline system, a check valve is arranged on a water outlet pipeline of the self-priming pump, a flap valve is arranged at a suction inlet of a self-priming pump body, after the self-priming pump stops, residual pressure can exist in a pump cavity due to the fact that the check valve and the flap valve are closed simultaneously or sequentially, the pump cavity can continuously bear pressure after stopping working, an air inlet of an exhaust channel of the full-automatic gas discharge valve is in an open state, gas enters the pump cavity, the residual pressure of the pump cavity is released, the self-priming pump is prevented from continuously bearing pressure in the pump stopping state, a pump body is effectively protected, and the service life of the self-;
3. the full-automatic gas discharge valve is automatic in the whole working process, manual operation is not needed, the practicability is high, and the application range is wide.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a semi-sectional view of a fully automatic gas vent valve for a self-primer pump.
Fig. 2 is a schematic diagram of the front structure of a fully automatic gas discharge valve for a self-priming pump.
FIG. 3 is a schematic view of a connection structure between a self-priming pump and a full-automatic gas discharge valve in the full-automatic gas discharge valve for the self-priming pump.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic structural diagram of a full-automatic gas discharge valve used in a self-priming pump before operation.
Fig. 6 is a schematic diagram of a fully automatic gas discharge valve for a self-priming pump.
Fig. 7 is a schematic structural diagram of a full-automatic gas discharge valve used in a self-priming pump after the full-automatic gas discharge valve is operated.
In the figure: the automatic water-saving valve comprises a valve body 1, a valve cover 2, a blank cap 3, a valve shaft 4, an O-shaped ring 5, a spring 6, a spring seat 7, a positioning pin 8, a valve diaphragm 9, an oil seal 10, an oil nozzle 11, a valve cavity 12, an exhaust passage air inlet 13, a bypass pipeline 14, a medium 15, a water outlet pipeline 16, a check valve 17, a water inlet pipeline 18 and a self-sucking pump 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, in the embodiment of the present invention, a full-automatic gas discharge valve for a self-priming pump includes a self-priming pump 19, an input end of the self-priming pump 19 is fixedly connected with a water inlet pipe 18, the other end of the water inlet pipe 18 is disposed in a water pool, an output end of the self-priming pump 19 is fixedly connected with a water outlet pipe 16, the water outlet pipe 16 is provided with a check valve 17, and a full-automatic gas discharge valve is connected between the check valve 17 and an output port of the self-priming pump 19 through a bypass pipe 14 on the water outlet pipe 16, so that gas in a pump cavity and the water inlet pipe 16 of the self-priming pump 19 after starting is effectively and quickly discharged through the full-automatic gas discharge valve, so that the self-priming pump 19 can quickly enter a normal working state, the service efficiency of the self-priming pump 19 is improved, the failure rate of.
The full-automatic gas discharge valve comprises a valve body 1, a valve cover 2 and a valve shaft 4, wherein the valve body 1 is fixedly arranged on the valve cover 2, the valve body 1 is fixedly connected with the valve cover 2 through a fastening screw, a valve cavity 12 is arranged in the middle of the joint of the valve body 1 and the valve cover 2, the valve shaft 4 is vertically arranged in the valve cavity 12, a valve diaphragm 9 is horizontally arranged in the valve cavity 12, the valve diaphragm 9 is of a wedge-shaped structure in the valve cavity 12, a supporting seat for erecting the valve shaft 4 is arranged on the surface of the valve diaphragm 9, a bottom end fixing frame of the valve shaft 4 is arranged on the supporting seat on the surface of the valve diaphragm 9, the top end of the valve shaft 4 is arranged in the valve body 1, a guide cavity for moving the valve shaft 4 is arranged in the valve body 1, a spring mounting seat is fixedly arranged at the lower end of the valve shaft 4 in the guide cavity of the valve body 1, the valve shaft 4 is sleeved on the spring 6, the top end of the spring 6 is abutted against the top surface of the inner part of the guide cavity of the valve body 1, the valve shaft 4 and the gas outlet of the valve body 1 are collinear in the vertical direction, namely, in the working process of the self-priming pump 19, a medium 15 is led into the valve cavity 12 through the water outlet pipeline 16 of the self-priming pump 19, the valve diaphragm 9 of the valve cavity 12 upwards pushes the valve shaft 4 under the action of the medium 15, the top end of the valve shaft 4 is inserted into the gas outlet of the valve body 1 to realize the closing of the full-automatic gas discharge valve, after the self-priming pump 19 is closed, the valve shaft 4 automatically resets under the action of the spring 6 to open the gas outlet of the valve body 1, the valve diaphragm 9 returns to the initial position under the pushing of the valve shaft 4, and after the valve diaphragm 9 resets, a small amount of solid particles are remained in the inner.
The exhaust passage air inlet 13 is opened to one side that valve body 1 is located valve pocket 12, the top of exhaust passage air inlet 13 communicates with each other with the gas outlet of valve body 1, the bottom of exhaust passage air inlet 13 runs through valve gap 2 and is connected with bypass pipeline 14 of self priming pump 19 outlet conduit 16, is convenient for the discharge of the interior gas of self priming pump 19 through bypass pipeline 14.
The bottom surface of the valve cover 2 is provided with a blank cap 3, the blank cap 3 is fixedly connected with the valve cover 2 through a fastening screw, so that the valve cover 2 and the blank cap 3 are of a detachable structure, and the full-automatic gas discharge valve is convenient to overhaul.
The bottom surface of the valve diaphragm 9 is fixedly provided with a supporting guide post, and the supporting guide post on the bottom surface of the valve diaphragm 9 is erected on the surface of the blank cap 3.
One side of the valve cavity 12 is provided with a channel for leading in a medium 15, and the channel is communicated with an air inlet 13 of an exhaust channel of the valve body 1.
The joint of the valve shaft 4 and the top of the valve cavity 12 is sealed by an oil seal 10, so that the valve shaft 4 can move more stably in the valve body 1 along the vertical direction.
And an O-shaped ring 5 is arranged at the joint of the valve shaft 4 and the top of the guide cavity of the valve body 1, so that the sealing property of the valve shaft and the valve body 1 is improved.
The surface of the valve shaft 4 is provided with a plurality of positioning pins 8 along the vertical direction, so that the valve shaft 4 is positioned in the vertical direction.
The oil nozzle 11 is arranged at the top of one side of the valve body 1, and the tail end of the oil nozzle 11 is communicated with the guide rail of the valve shaft 4 in the valve body 1, so that the valve shaft 4 is lubricated conveniently.
The gas outlet of the valve body 1 is connected with a flow guide pipe, and the tail end of the flow guide pipe is arranged in the water pool.
A working method of a full-automatic gas discharge valve for a self-priming pump comprises the following specific steps:
the method comprises the following steps: after the self-sucking pump 19 is started, gas in a cavity of the self-sucking pump 19 is sucked in through an air inlet 13 of an exhaust passage of the full-automatic gas discharge valve and is guided into a water pool through a flow guide pipe on an air outlet of the full-automatic gas discharge valve, and the gas in the self-sucking pump 19 is discharged;
step two: in the working process of the self-sucking pump 19, a medium 15 is introduced into the valve cavity 12 through the water outlet pipeline 16 of the self-sucking pump 19, the valve diaphragm 9 of the valve cavity 12 pushes the valve shaft 4 upwards under the action of the medium 15, the top end of the valve shaft 4 is inserted into the air outlet of the valve body 1 to close the full-automatic gas discharge valve, the flow of the self-sucking pump 19 is kept to be larger than or equal to 5 gallons, and the full-automatic gas discharge valve is in a closed state consistently;
step three: after the self-priming pump 19 is closed, the valve shaft 4 automatically resets under the effect of the spring 6 to open the exhaust port of the valve body 1, the valve diaphragm 9 returns to the initial position under the pushing of the valve shaft 4, and after the valve diaphragm 9 resets, a small amount of solid particles are remained in the interior of the valve cavity 12, namely, when the self-priming pump 19 works next time, the solid particles are discharged through the exhaust passage air inlet 13 when gas is discharged.
The working principle is as follows: after the self-priming pump 19 is started, gas in a cavity of the self-priming pump 19 is sucked in through an air inlet 13 of an exhaust passage of the full-automatic gas discharge valve, and is guided into a water pool through a flow guide pipe on an air outlet of the full-automatic gas discharge valve, the gas in the self-priming pump 19 is discharged, in the working process of the self-priming pump 19, a medium 15 is guided into a valve cavity 12 through an outlet pipeline 16 of the self-priming pump 19, a valve diaphragm 9 of the valve cavity 12 upwards pushes a valve shaft 4 under the action of the medium 15, the top end of the valve shaft 4 is inserted into the air outlet of the valve body 1 to close the full-automatic gas discharge valve (the flow of the self-priming pump 19 is not less than 5 gallons, the full-automatic gas discharge valve is in a closed state), after the self-priming pump 19 is closed, the valve shaft 4 automatically resets to open an exhaust port of the valve body 1 under the action of a spring 6, the valve, that is, when the self-priming pump 19 works next time, the solid particles are discharged through the air inlet 13 of the exhaust passage when the gas is discharged, so that the exhaust of the whole self-priming pump 19 in the working process is realized.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A full-automatic gas discharge valve for self priming pump, includes self priming pump (19), its characterized in that: the automatic water-saving device is characterized in that the input end of the self-sucking pump (19) is fixedly connected with a water inlet pipeline (18), the other end of the water inlet pipeline (18) is arranged in a water pool, the output end of the self-sucking pump (19) is fixedly connected with a water outlet pipeline (16), a check valve (17) is arranged on the water outlet pipeline (16), and a full-automatic gas discharge valve is connected between the check valve (17) and the output port of the self-sucking pump (19) on the water outlet pipeline (16) through a bypass pipeline (14);
the full-automatic gas discharge valve comprises a valve body (1), a valve cover (2) and a valve shaft (4), wherein the valve body (1) is fixedly arranged on the valve cover (2), the valve body (1) is fixedly connected with the valve cover (2) through a fastening screw, a valve cavity (12) is formed in the middle of the joint of the valve body (1) and the valve cover (2), the valve shaft (4) is vertically arranged in the valve cavity (12), a valve diaphragm (9) is horizontally arranged in the valve cavity (12), the valve diaphragm (9) is of a wedge-shaped structure in the valve cavity (12), a supporting seat for erecting the valve shaft (4) is arranged on the surface of the valve diaphragm (9), a bottom fixing frame of the valve shaft (4) is arranged on the supporting seat on the surface of the valve diaphragm (9), the top end of the valve shaft (4) is arranged in the valve body (1), a guide cavity for the valve shaft (4) to move is formed in the valve body (1), the lower end, located inside a guide cavity of the valve body (1), of the valve shaft (4) is fixedly provided with a spring mounting seat, a spring (6) is fixedly arranged on the spring mounting seat of the valve shaft (4), the valve shaft (4) is sleeved on the spring (6), the top end of the spring (6) abuts against the top surface of the inner part of the guide cavity of the valve body (1), and the valve shaft (4) and an air outlet of the valve body (1) are collinear in the vertical direction;
the exhaust valve is characterized in that an exhaust passage air inlet (13) is formed in one side, located in the valve cavity (12), of the valve body (1), the top end of the exhaust passage air inlet (13) is communicated with an air outlet of the valve body (1), and the bottom end of the exhaust passage air inlet (13) penetrates through the valve cover (2) and is connected with a bypass pipeline (14) of a water outlet pipeline (16) of the self-sucking pump (19).
2. The fully automatic gas discharge valve for self-priming pump according to claim 1, characterized in that the bottom surface of the valve cover (2) is provided with a blank cap (3), and the blank cap (3) is fixedly connected with the valve cover (2) by fastening screws.
3. The fully automatic gas vent valve for self-primer pump according to claim 1, wherein the bottom surface of the valve membrane (9) is fixedly provided with a support guide post, and the support guide post of the bottom surface of the valve membrane (9) is erected on the surface of the blank cap (3).
4. The valve according to claim 1, wherein a passage for introducing the medium (15) is formed at one side of the valve cavity (12), and the passage is communicated with the air inlet (13) of the exhaust passage of the valve body (1).
5. The fully automatic gas vent valve for a self-primer pump of claim 1 wherein the seal at the junction of the valve shaft (4) and the top of the valve chamber (12) is an oil seal (10).
6. The fully automatic gas vent valve for self-primer pump as recited in claim 1 wherein the junction of the valve shaft (4) and the top of the guide chamber of the valve body (1) is provided with an O-ring (5).
7. A fully automatic gas discharge valve for self-primer pumps according to claim 1 characterized in that said valve shaft (4) is provided with a plurality of positioning pins (8) in vertical direction on the surface.
8. The fully automatic gas discharge valve for a self-priming pump according to claim 1, characterized in that a nozzle tip (11) is provided at a top position of one side of the valve body (1), and the end of the nozzle tip (11) is the same as a guide track of the valve shaft (4) inside the valve body (1).
9. The valve according to claim 1, wherein the gas outlet of the valve body (1) is connected with a flow guide pipe, and the end of the flow guide pipe is disposed in the water pool.
10. A method of operating a fully automatic gas vent valve for a self-primer pump as recited in any of claims 1-9, the method comprising the steps of:
the method comprises the following steps: after the self-sucking pump (19) is started, gas in a cavity of the self-sucking pump (19) is sucked in through an air inlet (13) of an exhaust passage of a full-automatic gas discharge valve and is guided into a water pool through a flow guide pipe on an air outlet of the full-automatic gas discharge valve, and the gas in the self-sucking pump (19) is discharged;
step two: in the working process of the self-sucking pump (19), a medium (15) is led into the valve cavity (12) through a water outlet pipeline (16) of the self-sucking pump (19), a valve diaphragm (9) of the valve cavity (12) pushes the valve shaft (4) upwards under the action of the medium (15), the top end of the valve shaft (4) is inserted into an air outlet of the valve body (1) to close the full-automatic gas discharge valve, the flow of the self-sucking pump (19) is kept to be larger than or equal to 5 gallons, and the full-automatic gas discharge valve is in a closed state consistently;
step three: after self priming pump (19) closed, the gas vent of opening valve body (1) is reset automatically under the effect of spring (6) in valve shaft (4), and initial position is returned in valve diaphragm (9) under the promotion of valve shaft (4), and valve diaphragm (9) back that resets, and the inside of valve pocket (12) remains a small amount of solid particle, and when self priming pump (19) worked next time promptly, the solid particle was discharged through exhaust passage air inlet (13) when gas emission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657411.3A CN111750146A (en) | 2020-07-09 | 2020-07-09 | Full-automatic gas discharge valve for self-priming pump and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657411.3A CN111750146A (en) | 2020-07-09 | 2020-07-09 | Full-automatic gas discharge valve for self-priming pump and working method thereof |
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| CN111750146A true CN111750146A (en) | 2020-10-09 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1525938A (en) * | 1974-11-29 | 1978-09-27 | Gen Electric | Fluid delivery systems |
| JP2004202093A (en) * | 2002-12-26 | 2004-07-22 | Yoshitani Kikai Seisakusho:Kk | Automatic pumping up structure of fire fighting pump |
| CN201162682Y (en) * | 2007-12-06 | 2008-12-10 | 鲍训昌 | Self-absorbing device for pump |
| CN103697205A (en) * | 2013-12-27 | 2014-04-02 | 安徽埃斯克制泵有限公司 | Automatic exhaust valve for outlet of self-priming pump |
| CN203730875U (en) * | 2013-12-27 | 2014-07-23 | 安徽埃斯克制泵有限公司 | Automatic exhaust valve |
| CN104879511A (en) * | 2015-05-26 | 2015-09-02 | 大丰市南亚阀门有限公司 | Angle stop valve |
| CN205446066U (en) * | 2016-02-29 | 2016-08-10 | 大连双龙泵业制造有限公司 | Self priming pump is leaked to vertical high -lift nothing |
| CN107237756A (en) * | 2017-06-14 | 2017-10-10 | 余雷 | A kind of double check valve (DCV) screw rod self-priming pumping system |
| CN107448392A (en) * | 2016-05-12 | 2017-12-08 | 格兰富控股联合股份公司 | Centrifugal pump |
-
2020
- 2020-07-09 CN CN202010657411.3A patent/CN111750146A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1525938A (en) * | 1974-11-29 | 1978-09-27 | Gen Electric | Fluid delivery systems |
| JP2004202093A (en) * | 2002-12-26 | 2004-07-22 | Yoshitani Kikai Seisakusho:Kk | Automatic pumping up structure of fire fighting pump |
| CN201162682Y (en) * | 2007-12-06 | 2008-12-10 | 鲍训昌 | Self-absorbing device for pump |
| CN103697205A (en) * | 2013-12-27 | 2014-04-02 | 安徽埃斯克制泵有限公司 | Automatic exhaust valve for outlet of self-priming pump |
| CN203730875U (en) * | 2013-12-27 | 2014-07-23 | 安徽埃斯克制泵有限公司 | Automatic exhaust valve |
| CN104879511A (en) * | 2015-05-26 | 2015-09-02 | 大丰市南亚阀门有限公司 | Angle stop valve |
| CN205446066U (en) * | 2016-02-29 | 2016-08-10 | 大连双龙泵业制造有限公司 | Self priming pump is leaked to vertical high -lift nothing |
| CN107448392A (en) * | 2016-05-12 | 2017-12-08 | 格兰富控股联合股份公司 | Centrifugal pump |
| CN107237756A (en) * | 2017-06-14 | 2017-10-10 | 余雷 | A kind of double check valve (DCV) screw rod self-priming pumping system |
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Application publication date: 20201009 |