CN216867625U

CN216867625U - Manual high-pressure and ultra-large flow cut-off valve assembly and multi-oil-way cut-off valve

Info

Publication number: CN216867625U
Application number: CN202220645688.9U
Authority: CN
Inventors: 杜建华; 王燕丽; 杨淑芳; 胡燕
Original assignee: Beijing Huahai Machinery Co ltd
Current assignee: Beijing Huahai Machinery Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-01
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to a hydrovalve especially relates to a manual formula high pressure, super large flow cut off valve module, and its technical scheme main points are: the valve comprises a valve body and a valve cavity arranged in the valve body, wherein a liquid inlet and a liquid outlet which are communicated with the valve cavity are formed in the valve body; a valve core is arranged in the valve cavity and can block the communication between the liquid inlet and the valve cavity when the valve core moves close to the liquid inlet; a valve cover used for closing one end of the valve cavity far away from the liquid inlet is fixed on the valve body, a compression spring is fixed between the valve cover and the valve core, a liquid inlet groove is formed in one end of the valve core close to the valve cover, and a control liquid port communicated with the liquid inlet groove is formed in the valve body; the control valve also comprises a first stop valve and a second stop valve, a control pipeline communicated with the control liquid port is connected between the first stop valve and the second stop valve, and the second stop valve is provided with a pressure relief port; the purpose of cutting off the pump liquid pipeline in time to reduce the leakage of the emulsion when the pump liquid pipeline bursts is achieved.

Description

Manual high-pressure and ultra-large flow cut-off valve assembly and multi-oil-way cut-off valve

Technical Field

The application relates to a hydraulic valve, especially relate to a manual formula high pressure, super large flow cut off valve module and many oil circuit trip valves.

Background

A pump liquid pipeline for pumping high-pressure emulsion is arranged in an automatic emulsion pump station system, but when emulsion leaks due to burst or opening on the pump liquid pipeline, the pump station is usually shut down directly to stop supplying the emulsion, so that normal work of other working surfaces is influenced, and the loss of the pump station caused by frequent shut-down of the pump station is large; however, if the stop valves are directly arranged on the pump liquid pipelines to realize the independent cut-off of the corresponding pump liquid pipelines, the stop valves are difficult to screw due to the extremely high pipeline pressure, and potential safety hazards are easily caused.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the realization of the truncation of a single high-pressure and large-flow pump liquid pipeline, the application provides a manual high-pressure and ultra-large-flow cut-off valve component and a multi-oil-way cut-off valve.

The application provides a pair of manual formula high pressure, super large flow cut off valve subassembly and many oil circuit trip valves adopt following technical scheme:

a manual high-pressure and ultra-large flow cut-off valve component and a multi-oil-way cut-off valve comprise a valve body and a valve cavity arranged in the valve body, wherein a liquid inlet and a liquid outlet which are communicated with the valve cavity are formed in the valve body; the valve core is arranged in the valve cavity and is in sliding connection with the cavity wall of the valve cavity and can move towards the direction close to the liquid outlet, and the valve core can block the communication between the liquid inlet and the valve cavity when moving close to the liquid inlet; a valve cover used for closing one end of the valve cavity far away from the liquid inlet is fixed on the valve body, a compression spring is fixed between the valve cover and the valve core, a liquid inlet groove is formed in one end of the valve core close to the valve cover, and a control liquid port communicated with the liquid inlet groove is formed in the valve body; the liquid inlet is communicated with a liquid inlet, the first stop valve is communicated with the liquid inlet, the second stop valve is communicated with the first stop valve, a control pipeline communicated with the control liquid port is connected between the first stop valve and the second stop valve, and a pressure relief port is formed in one end, deviating from the first stop valve, of the second stop valve.

By adopting the technical scheme, in the process of normally conveying the emulsion by the pump liquid pipeline, the first stop valve is closed and the second stop valve is opened, at the moment, the emulsion in the liquid inlet groove is communicated with the pressure relief opening through the control liquid opening and the second stop valve, the pressure at the liquid inlet is greater than the pressure at the control liquid opening, the valve core overcomes the thrust of the compression spring under the action of the pressure at the liquid inlet, and the liquid inlet is communicated with the liquid outlet; when the pump liquid pipeline bursts or is opened, the pump liquid pipeline needs to be cut off, a worker closes the second stop valve and opens the first stop valve, the liquid inlet is communicated with the control liquid port at the moment, emulsion enters the liquid inlet groove through the control liquid port, the pressure at two ends of the valve core is equal, the emulsion entering the liquid inlet cannot overcome the thrust of the compression spring, the valve core continuously moves towards the direction close to the liquid inlet under the action of the compression spring until the liquid inlet and the valve cavity are mutually blocked, and the liquid inlet and the liquid outlet are further mutually disconnected, so that the emulsion is timely stopped during conveying, and the subsequent emulsion is reduced from leaking; the pipe diameter of the control oil way is designed to be smaller than that of the pump liquid pipeline, so that the flow of the control oil way is smaller than that of the pump liquid pipeline, the volume of a valve core required to be controlled on the oil way is correspondingly reduced, the resistance to be overcome by rotating the valve core of the stop valve under the condition of certain pressure is smaller, the on-off of a certain position of the control oil way is more labor-saving and convenient to control than the on-off of the pump liquid pipeline by manually screwing the cut-off valve, even if the cut-off of a single high-pressure and large-flow pump liquid pipeline is realized, the normal operation of other working faces can be realized while the supply of emulsion to the single working face is stopped, and the operation labor intensity of workers is reduced, the efficiency is higher, and the safety and the reliability are higher.

Optionally, the liquid inlet is arranged at one end of the valve cavity, and a liquid guide port communicated with the liquid outlet is arranged on the cavity wall of the valve cavity; the case sets up with the inlet is coaxial, and the one end shaping that the case is close to the inlet has the separation portion that has the tapering, and the diameter of case is greater than the diameter of inlet, and the diameter that separation portion is close to inlet one end is not more than the diameter of inlet.

Through adopting above-mentioned technical scheme, after the emulsion entered into the feed liquor groove, separation portion constantly removed to the direction that is close to the inlet to there will be a position in the in-process of removing and can the butt at the tip of inlet, realize the closure to the inlet.

Optionally, a throttle valve is arranged on the control pipeline.

Through adopting above-mentioned technical scheme, control the emulsion flow on the control pipeline, and then make the inside emulsion pressure force of feed liquor groove slowly increase, the inlet is closed slowly to the case promptly, prevents to cause the damage to hydraulic components such as case because very big pressure on the pump liquid pipeline, has improved the security of system.

Optionally, the pressure relief port is communicated with an emulsion tank.

Through adopting above-mentioned technical scheme, realize the collection to the emulsion and realize returning the liquid to the non-pressure of emulsion in the feed liquor groove.

Optionally, including above-mentioned shut-off valve subassembly, the shut-off valve subassembly is provided with a plurality ofly, a plurality of valve body integrated into one piece, cuts off each other between a plurality of valve cavitys, cuts off each other between a plurality of inlets, cuts off each other between a plurality of liquid outlets, cuts off each other between a plurality of control liquid mouths.

By adopting the technical scheme, on one hand, the respective control of a plurality of pump liquid pipelines can be met, and the problem that the whole emulsion industrial system cannot normally operate due to the fact that the pump liquid pipeline corresponding to one construction position bursts or opens is solved; in addition, when the flow corresponding to one pump liquid pipeline is large and the flow of a single cut-off valve component cannot be met, the pump liquid pipeline is respectively connected with the corresponding liquid inlets through the multi-way pipelines, and the liquid outlets are communicated with the pump liquid pipeline at the liquid outlet through the multi-way.

Optionally, one end of each of the second stop valves, which faces away from the first stop valve, is simultaneously communicated with the same pressure relief port.

Through adopting above-mentioned technical scheme, when beginning to carry out the emulsion and carry, a plurality of first stop valves are closed and a plurality of second stop valves are opened, and the emulsion that enters into each inlet inside promotes corresponding case and moves to the direction that is close to the valve gap, and the emulsion that is located the feed liquor inslot and is located between case and the valve gap is pressurized and is arranged to the emulsion incasement portion, and non-pressure returns liquid promptly.

In summary, the present application has the following technical effects:

1. the valve body, the valve core, the valve cover, the compression spring, the first stop valve and the second stop valve are arranged, so that the emulsion is timely stopped during conveying, and the subsequent emulsion leakage is reduced;

2. through having set up many oil circuit trip valves, when the flow that corresponds as a pump liquid pipeline is great and lead to single shut-off valve subassembly's flow can not satisfy, be connected pump liquid pipeline with corresponding inlet respectively through many logical pipelines to with a plurality of liquid outlets through the pump liquid pipeline switch-on of many-way and liquid outlet department can.

Drawings

FIG. 1 is a schematic view of the internal structure of a shutoff valve assembly in an embodiment of the present application;

FIG. 2 is a schematic diagram of the oil circuit of the shutoff valve assembly in an embodiment of the present application;

FIG. 3 is a schematic view of the internal structure of a multi-circuit shutoff valve in the embodiment of the present application;

fig. 4 is an oil path schematic diagram of the multi-oil path shutoff valve in the embodiment of the present application.

In the figure, 1, a valve body; 2. a valve cavity; 3. a liquid inlet; 4. a liquid outlet; 5. a liquid guide port; 6. controlling the liquid port; 7. a valve core; 8. a liquid inlet tank; 9. a blocking part; 10. a valve cover; 11. a compression spring; 12. controlling an oil path; 14. a first shut-off valve; 15. a second stop valve; 16. a control pipeline; 17. a pressure relief port; 18. a throttle valve.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, the application provides a manual high-pressure and ultra-high-flow cut-off valve assembly, which comprises a valve body 1 and a valve core 7, wherein the valve body 1 is provided with a valve cavity 2 into which the valve core 7 is inserted and which is matched with the valve core 7, and the valve core 7 is in sliding connection with the cavity wall of the valve cavity 2; the valve cavity 2 penetrates through one surface of the valve body 1, and the axis of the valve cavity 2 is perpendicular to the surface of the valve body 1; the valve body 1 is provided with a liquid inlet 3 and a liquid outlet 4, the liquid inlet 3 is arranged on the surface opposite to the surface of the valve body 1 penetrated by the valve cavity 2, the liquid inlet 3 and the valve cavity 2 are coaxially arranged and are communicated with each other, and the diameter of the liquid inlet 3 is smaller than that of the valve cavity 2; the liquid outlet 4 is arranged on the surface which is vertical to the surface of the valve body 1 provided with the valve cavity 2, the axis of the liquid outlet 4 is vertical to the axis of the valve cavity 2, and the liquid outlet 4 is communicated with the valve cavity 2; specifically, the liquid outlet 4 is communicated with the valve cavity 2 in a manner that a liquid guide port 5 for communicating the liquid inlet 3 with the valve cavity 2 is formed in the cavity wall of the valve cavity 2, and the liquid guide port 5 is formed close to the liquid inlet 3; the liquid inlet 3 and the liquid outlet 4 are respectively communicated with a pump liquid pipeline for conveying emulsion, and the liquid inlet 3 is communicated with a pump station and the stop valve assembly is close to the pump station.

Referring to fig. 1 and 2, a valve cover 10 which is bolted on the valve body 1 and is used for sealing one end of the valve cavity 2 far from the liquid inlet 3 is arranged at one end of the valve cavity 2 far from the liquid inlet 3, a compression spring 11 is coaxially and fixedly connected with one end of the valve cover 10 close to the valve core 7, and one end of the compression spring 11 far from the valve cover 10 is fixedly connected with the valve core 7; further, a liquid inlet groove 8 is coaxially formed in the valve core 7, the liquid inlet groove 8 penetrates through the end face, close to the valve cover 10, of the valve core 7, and a compression spring 11 is inserted into the liquid inlet groove 8 and is fixedly connected with the bottom of the liquid inlet groove 8; the valve body 1 is provided with a control liquid port 6 communicated with the liquid inlet groove 8, the control liquid port 6 penetrates through the valve body 1 and forms an interface for an external pipeline to be communicated with the control liquid port 6 on the valve body 1, the valve body 1 is connected with a control oil path 12 communicated with the control liquid port 6 through the interface, and the control liquid port 3 is indirectly communicated with the control liquid port 6 after the control oil path 12 is communicated with the control liquid port 6.

Referring to fig. 1, at the normal in-process of carrying of emulsion, make and cut each other between control oil circuit 12 and the control liquid mouth 6, the emulsion that enters into the valve pocket 2 inside from inlet 3 will overcome compression spring 11's thrust and make case 7 to the direction of keeping away from inlet 3 remove, move to one side that drain mouth 5 kept away from inlet 3 until case 7 global, inlet 3 and then with liquid outlet 4 intercommunication, the emulsion passes through valve body 1 and realizes the transport between the pump liquid pipeline.

Referring to fig. 1, when the pump fluid pipeline bursts or opens, the control oil path 12 is communicated with the control fluid port 6, the fluid inlet 3 is communicated with the control fluid port, the emulsion enters the fluid inlet tank 8 through the control fluid port 6, the emulsion pressure at two ends of the valve core 7 is equal, namely, the emulsion pressure at two ends of the valve core 7 is equal, the emulsion entering the fluid inlet 3 cannot overcome the thrust of the compression spring 11, the valve core 7 continuously moves towards the direction close to the fluid inlet 3 under the action of the compression spring 11 until the peripheral surface of the valve core 7 completely covers the fluid guide port 5, and then the fluid inlet 3 is disconnected from the fluid outlet 4, so that the emulsion delivery is stopped in time, and the leakage of subsequent emulsion is reduced.

After the pump liquid pipeline is overhauled, the liquid inlet groove 8 and the control liquid port 6 are communicated with the emulsion tank again; when emulsion conveying is started, the emulsion entering the liquid inlet 3 pushes the valve core 7 to move towards the direction close to the valve cover 10, and the emulsion inside the liquid inlet groove 8 and between the valve core 7 and the valve cover 10 is pressurized and discharged into the emulsion box, namely, the emulsion is returned without pressure.

Referring to fig. 1, in order to improve the sealing performance when the liquid inlet 3 and the liquid outlet 4 are blocked from each other, a blocking portion 9 is coaxially formed at one end of the valve core 7 close to the liquid inlet 3, the blocking portion 9 has a taper, the diameter of the blocking portion 9 is gradually reduced along a direction from close to the direction away from the valve core 7, the diameter of one end of the blocking portion 9 away from the valve core 7 is not larger than the diameter of the liquid inlet 3, and the diameter of the end of the blocking portion 9 is smaller than the diameter of the liquid inlet 3 and can be inserted into the liquid inlet 3; the diameter of one end of the blocking part 9 close to the valve core 7 is equal to that of the valve core 7; and then after the emulsion entered into feed liquor groove 8, case 7 moved to the direction that is close to inlet 3 under compression spring's 11 effect, and separation portion 9 constantly moved and entered into inlet 3 gradually to the direction that is close to inlet 3 thereupon, because the diameter of case 7 is greater than the diameter of inlet 3, and then separation portion 9 will have a position in the in-process of removing and can the butt at the tip of inlet 3, realize the closure to inlet 3.

Referring to fig. 1 and 2, specifically, a first stop valve 14 connected in parallel with a passage from the liquid inlet 3 to the liquid outlet 4 is communicated with the liquid inlet 3, a second stop valve 15 is communicated with one end of the first stop valve 14, which is away from the liquid inlet 3, and a control pipeline 16 communicated with the control liquid port 6 is arranged between the second stop valve 15 and the first stop valve 14; the end of the second shut-off valve 15 facing away from the first shut-off valve 14 is provided with a pressure relief port 17, into which the hydraulic port can lead to the emulsion tank.

When the pump liquid pipeline needs to be kept in conduction, the first stop valve 14 is kept closed and the second stop valve 15 is kept in an open state, at the moment, the liquid inlet 3 and the control liquid port 6 are cut off, the pressure relief port 17 is communicated with the control liquid port 6, the emulsion entering the interior of the valve cavity 2 from the liquid inlet 3 overcomes the thrust of the compression spring 11 and enables the valve core 7 to move towards the direction far away from the liquid inlet 3, and the emulsion in the liquid inlet groove 8 sequentially flows back to the emulsion tank through the control liquid port 6, the second stop valve 15 and the pressure relief port 17 without pressure until the state that the liquid inlet 3 is completely communicated with the liquid outlet 4 is achieved.

When pump liquid pipeline needs to be cut off, the staff manually closes second stop valve 15 and opens first stop valve 14, realizes inlet 3 and control liquid mouth 6 intercommunication, and pressure release mouth 17 cuts off with whole oil circuit, and case 7 can't overcome compression spring 11's thrust and make case 7 slowly be close to the direction removal of inlet 3, cuts off each other until between inlet 3 and the liquid outlet 4.

When the control oil path 12 is designed, the pipe diameter, i.e. the flow design of the control oil path 12 is smaller and smaller than the pipe diameter, i.e. the flow of the pump liquid pipeline, so that the flow of the control oil path 12 is smaller than the flow of the pump liquid pipeline, the volume of the required stop valve core corresponding to the required control oil path 12 is correspondingly reduced, the resistance to be overcome by rotating the stop valve core under a certain pressure is smaller, the emulsion impact force received by the first stop valve 14 and the second stop valve 15 on the control oil path 12 is greatly reduced, the change degree of the on-off states of the first stop valve 14 and the second stop valve 15 can be realized by easily screwing the corresponding stop valve core by a worker, and the on-off of a certain position of the control oil path 12 is more realistic than the on-off of the pump liquid pipeline which is directly controlled.

Be provided with choke valve 18 on the control pipeline 16, choke valve 18 controls the emulsion flow on the control pipeline 16, and then makes the emulsion pressure of feed liquor groove 8 inside slowly increase, and inlet 3 can be closed slowly to case 7 like this, prevents to cause the damage to hydraulic component such as case 7 because very big pressure on the pump liquid pipeline, has improved the security of system, further makes to cutting of high pressure large-traffic pump liquid pipeline safe feasible more

Referring to fig. 3 and 4, in order to meet the requirement of large-flow delivery of emulsion, a large-flow pump liquid pipeline is needed to be adopted correspondingly, but the requirement is often difficult to be met only by a single cut-off valve assembly, the application further provides a multi-oil-path cut-off valve, which comprises a plurality of cut-off valve assemblies, each pump liquid pipeline is communicated with the corresponding cut-off valve assembly respectively, the valve bodies 1 in each cut-off valve assembly are integrally formed, each valve cavity 2 is isolated, each liquid inlet 3 is isolated, each liquid outlet 4 is isolated, each control liquid port 6 is isolated, and further the mutual interference among the cut-off valve assemblies is prevented; the plurality of cut-off valve assemblies share one emulsion tank, namely, the plurality of second cut-off valves 15 are communicated with the same pressure relief port 17; in the present embodiment, two shut valve assemblies are provided.

When carrying out the pipe-line layout, be connected pump liquid pipeline with corresponding inlet 3 respectively through many logical pipelines, the export quantity of many logical pipelines equals with the quantity of trip valve subassembly to with the pump liquid pipeline switch-on of a plurality of liquid outlets 4 through leading to with 4 departments of liquid outlet, can realize the straight a plurality of trip valve subassemblies of large-traffic emulsion reposition of redundant personnel of pump liquid pipeline inside, at last again with a plurality of liquid outlets 4 that cut off the valve subassembly through leading to the pump liquid pipeline of reengaging can.

To sum up, the application process of this application is: in the normal conveying process of the emulsion, the first stop valve 14 is kept closed, the second stop valve 15 is kept open, at the moment, the liquid inlet 3 and the control liquid port 6 are cut off, the pressure relief port 17 is communicated with the control liquid port 6, the emulsion entering the valve cavity 2 from the liquid inlet 3 overcomes the thrust of the compression spring 11, and the valve core 7 moves towards the direction far away from the liquid inlet 3 until the liquid inlet 3 is communicated with the liquid outlet 4; when pump liquid pipeline takes place to burst or appear the opening, the emulsion pressure of 4 departments of liquid outlet will reduce by force, the alarm starts this moment, the staff receives the pilot signal of alarm or display screen registration, learn pump liquid pipeline and need turn-offs, the staff closes second stop valve 15 and opens first stop valve 14, realize inlet 3 and control liquid mouth 6 intercommunication, valve core 7 can't overcome compression spring 11's thrust and make valve core 7 slowly be close to the direction removal of inlet 3, cut up to inlet 3 and liquid outlet 4.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. A manual formula high pressure, super large flow shut-off valve subassembly which characterized in that: the valve comprises a valve body (1) and a valve cavity (2) arranged in the valve body (1), wherein a liquid inlet (3) and a liquid outlet (4) communicated with the valve cavity (2) are formed in the valve body (1); a valve core (7) which is connected with the cavity wall of the valve cavity (2) in a sliding way and can move towards the direction close to the liquid outlet (4) is arranged in the valve cavity (2), and the valve core (7) can block the communication between the liquid inlet (3) and the valve cavity (2) when moving close to the liquid inlet (3); a valve cover (10) used for closing one end of the valve cavity (2) far away from the liquid inlet (3) is fixed on the valve body (1), a compression spring (11) is fixed between the valve cover (10) and the valve core (7), a liquid inlet groove (8) is formed in one end, close to the valve cover (10), of the valve core (7), and a control liquid port (6) communicated with the liquid inlet groove (8) is formed in the valve body (1);

the liquid inlet valve is characterized by further comprising a first stop valve (14) communicated with the liquid inlet (3) and a second stop valve (15) communicated with the first stop valve (14), a control pipeline (16) communicated with the control liquid port (6) is connected between the first stop valve (14) and the second stop valve (15), and a pressure relief port (17) is formed in one end, deviating from the first stop valve (14), of the second stop valve (15).

2. A manual high pressure, ultra large flow shut off valve assembly as recited in claim 1 wherein: the liquid inlet (3) is arranged at one end of the valve cavity (2), and the cavity wall of the valve cavity (2) is provided with a liquid guide port (5) communicated with the liquid outlet (4); valve core (7) and inlet (3) coaxial setting, valve core (7) are close to the one end shaping of inlet (3) and have tapering separation portion (9), and the diameter of valve core (7) is greater than the diameter of inlet (3), and the diameter that separation portion (9) are close to inlet (3) one end is not more than the diameter of inlet (3).

3. A manual high pressure, ultra large flow shut off valve assembly as recited in claim 1 wherein: a throttle valve (18) is arranged on the control pipeline (16).

4. A manual high pressure, ultra high flow shut off valve assembly as recited in claim 2 wherein: the pressure relief port (17) is communicated with an emulsion tank.

5. The utility model provides a many oil circuits trip valve which characterized in that: the shut-off valve assembly comprises the shut-off valve assembly according to any one of claims 1 to 4, wherein the shut-off valve assembly is provided with a plurality of valve bodies (1) which are integrally formed, a plurality of valve cavities (2) are mutually isolated, a plurality of liquid inlets (3) are mutually isolated, a plurality of liquid outlets (4) are mutually isolated, and a plurality of control liquid ports (6) are mutually isolated.

6. The multi-circuit shut-off valve of claim 5, wherein: one end of the second stop valves (15) departing from the first stop valve (14) is simultaneously communicated with the same pressure relief opening (17).