CN212273050U - Self-energy-storage hydraulic control piston valve - Google Patents
Self-energy-storage hydraulic control piston valve Download PDFInfo
- Publication number
- CN212273050U CN212273050U CN202020835108.3U CN202020835108U CN212273050U CN 212273050 U CN212273050 U CN 212273050U CN 202020835108 U CN202020835108 U CN 202020835108U CN 212273050 U CN212273050 U CN 212273050U
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- valve
- port
- piston
- hydraulic control
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- Expired - Fee Related
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- 238000004146 energy storage Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 9
- -1 chemical engineering Substances 0.000 abstract 1
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a self-energy-storage hydraulic control piston valve, belonging to the valve field; the hydraulic control valve comprises a valve body and a hydraulic control pipeline, and is characterized in that a piston body is fixed in the valve body, and a flow passage is formed between the valve body and the piston body; a valve core is arranged in the piston body, and a left cavity and a right cavity are formed by the valve core and the piston body; the valve body is also provided with a pressure interface, a control port I and a control port II, the pressure interface is communicated with the flow channel, the control port I is communicated with the left cavity, and the control port II is communicated with the right cavity; the utility model uses the fluid pressure in the flow passage as power, can be manually and easily operated without external power, and has simple structure, reliable work and low cost; can be widely applied to the industries of petroleum, chemical engineering, water conservancy and the like.
Description
Technical Field
The utility model belongs to the valve field especially relates to a from energy storage liquid accuse piston valve.
Background
The gate valve, butterfly valve, ball valve, etc. that present widely used inevitably have following defect: firstly, the opening and closing torque of the valve is increased along with the increase of the diameter of the valve and the pressure of a pipeline, and the control difficulty is increased; secondly, an electric actuating mechanism or a hydraulic actuating mechanism is often required to be configured to reduce labor intensity or meet automation requirements, so that the control, use and maintenance costs are greatly increased; when the emergency accident can not use the electric power normally, the valve controlled by the electric actuating mechanism can not be closed in time (the electric actuating mechanism can be operated manually usually, and the operation is time-consuming and labor-consuming), thereby further enlarging the accident.
Disclosure of Invention
The utility model aims at the defect that prior art exists, provide one kind and utilize self runner internal fluid pressure as power, need not plus power can manual light operation from energy storage liquid accuse piston valve to reduce control, use and maintenance cost.
A self-energy-storage hydraulic control piston valve comprises a valve body and a hydraulic control pipeline, and is characterized in that a piston body is fixed in the valve body, and a flow passage is formed between the valve body and the piston body; a valve core is arranged in the piston body, and a left cavity and a right cavity are formed by the valve core and the piston body; the valve body is further provided with a pressure interface, a control port I and a control port II, the pressure interface is communicated with the flow channel, the control port I is communicated with the left cavity, and the control port II is communicated with the right cavity.
The hydraulic control pipeline control device comprises a connecting pipe, a two-position four-way reversing valve, a one-way valve I, a buffer, a one-way valve II and an energy storage tank, wherein a pressure interface is connected with a port P of the two-position four-way reversing valve through the one-way valve II, and the energy storage tank is arranged between the one-way valve II and the port P of the two-position four-way reversing valve; the control port I is connected with the port A of the two-position four-way reversing valve; the control port II is connected with a port B of the two-position four-way reversing valve; and an O port of the two-position four-way reversing valve is connected with a downstream pipeline through the one-way valve I, and a buffer is arranged between the O port of the two-position four-way reversing valve and the one-way valve I.
The pressure interface is arranged at one end of the inlet of the valve body.
The valve body and the piston body are of an integral structure.
The valve core is a stepped piston valve core.
And a sealing element is arranged between the valve core and the piston body.
And a sealing element is arranged between the right end of the valve core and the outlet of the valve body.
And a limiting step is arranged in the piston body.
Compared with the prior art, the utility model beneficial effect be: the opening and closing torque is irrelevant to the diameter of the valve and the pressure of the pipeline, the fluid pressure in the flow channel of the valve is used as power, the valve can be manually and easily operated without external power, and the valve has the characteristics of simple structure, reliable work, low use and maintenance cost and the like.
Drawings
Fig. 1 is a schematic view of the structure of the closed state of the present invention.
Fig. 2 is a schematic view of the structure of the open state of the present invention.
Fig. 3 is a sectional view of the valve body of the present invention.
Fig. 4 is a hydraulic control schematic diagram according to an embodiment of the present invention.
In the figure: 1-a valve body; 1 a-a piston body; 1 b-a flow channel; 1 c-a pressure interface; 1 d-a control port I; 1 e-a limit step; 1 f-a control port II; 1 g-valve body inlet; 1 h-valve body outlet; 2-a valve core; 3-left cavity; 4-a right cavity; 5-a seal; 6-a seal; 7-a seal; 8-a one-way valve II; 9-a two-position four-way reversing valve; 10-an energy storage tank; 11-a buffer; 12-a one-way valve I; 13-downstream piping.
Detailed Description
The invention is further explained and the embodiment of the invention is given below by combining the attached drawings of the specification.
Example (b): referring to fig. 1, 2, 3 and 4, the self-energy-storage hydraulic control piston valve comprises a valve body 1, and a valve body inlet 1g and a valve body outlet 1h in the valve body 1, wherein a piston body 1a is fixed in the valve body 1, and a flow channel 1b is formed between the valve body 1 and the piston body 1 a; a valve core 2 is arranged in the piston body 1a, and the valve core 2 and the piston body 1a form a left cavity 3 and a right cavity 4; the valve body 1 is also provided with a pressure interface 1c, a control port I1 d and a control port II 1f, the pressure interface 1c is communicated with the flow channel 1b, the control port I1 d is communicated with the left cavity 3, and the control port II 1f is communicated with the right cavity 4; the pressure interface 1c is connected with a port P of the two-position four-way reversing valve 9 through a one-way valve II 8, and an energy storage tank 10 is arranged between the one-way valve II 8 and the port P of the two-position four-way reversing valve 9; the control port I1 d is connected with a port A of the two-position four-way reversing valve 9; the control port II 1f is connected with a port B of the two-position four-way reversing valve 9; an O port of the two-position four-way reversing valve 9 is connected with a downstream pipeline 13 through a one-way valve I12, and a buffer 11 is arranged between the O port of the two-position four-way reversing valve 9 and the one-way valve I12.
The pressure port 1c is at one end of the valve body inlet 1 g.
The valve body 1 and the piston body 1a are of an integral structure.
The spool 2 is a stepped piston spool.
A limit step 1e is provided in the piston body 1 a.
A seal 5 and a seal 6 are provided between the valve body 2 and the piston body 1 a.
And a sealing element 7 is arranged between the right end of the valve core 2 and the valve body outlet 1 h.
The working principle is as follows: according to Pascal's law P1=P2I.e. F1/S1=F2/S2(ii) a If S1>S2Then F is1>F2。
The working process is as follows: referring to fig. 1, 2 and 4, when the valve is opened, the two-position four-way reversing valve 9 is at the right end position shown in the figure, the port P of the two-position four-way reversing valve 9 is communicated with the port B, the port a is communicated with the port O, the left cavity 3 is decompressed, fluid in the flow channel 1B enters the right cavity 4 from the pressure outlet 1c and the one-way valve ii 8 or from the energy storage tank 10 through the port P and the port B of the two-position four-way reversing valve 9 through the control port ii 1f, and the valve element 2 is pushed to move left until the valve element 2 is fully opened when the limiting step 1e is reached; meanwhile, fluid in the left cavity 3 flows into a downstream pipeline 13 through a control port I1 d, an A port and an O port of the two-position four-way reversing valve 9 and a one-way valve I12; when the pressure in the downstream pipeline 13 is higher than the pressure in the left cavity 3, the one-way valve I12 is stopped, and at the moment, the fluid in the left cavity 3 flows into the buffer 11 through the control port I1 d, the port A and the port O of the two-position four-way reversing valve 9; when the valve is closed, the two-position four-way reversing valve 9 is moved to the left end, a port P of the two-position four-way reversing valve 9 is communicated with a port A, a port B is communicated with a port O, the right cavity 4 loses pressure, fluid in the flow channel 1B flows from the pressure outlet 1c through the one-way valve II 8, the port P and the port A of the two-position four-way reversing valve 9 and enters the left cavity 3 through the control port I1 d, the pressure intensity of the left end and the pressure intensity of the right end of the valve core 2 are equal, the area of the left end of the valve core 2 is larger than that of the right end, the valve core 2 is moved to the right; meanwhile, the fluid in the right cavity 4 flows into the buffer 11 through the control port II 1f, the port B of the two-position four-way reversing valve 9 and the port O; when the pressure in the downstream pipe 13 is lower than the pressure in the buffer 11, the fluid in the buffer 11 flows into the downstream pipe 13 through the check valve i 12.
Claims (8)
1. A self-energy-storage hydraulic control piston valve comprises a valve body and a hydraulic control pipeline, and is characterized in that a piston body is fixed in the valve body, and a flow passage is formed between the valve body and the piston body; a valve core is arranged in the piston body, and a left cavity and a right cavity are formed by the valve core and the piston body; the valve body is further provided with a pressure interface, a control port I and a control port II, the pressure interface is communicated with the flow channel, the control port I is communicated with the left cavity, and the control port II is communicated with the right cavity.
2. The self-energy-storage hydraulic control piston valve as claimed in claim 1, wherein the hydraulic control pipeline comprises a connecting pipe, a two-position four-way reversing valve, a one-way valve I, a buffer, a one-way valve II and an energy storage tank, the pressure port is connected with a port P of the two-position four-way reversing valve through the one-way valve II, and the energy storage tank is arranged between the one-way valve II and the port P of the two-position four-way reversing valve; the control port I is connected with the port A of the two-position four-way reversing valve; the control port II is connected with a port B of the two-position four-way reversing valve; and an O port of the two-position four-way reversing valve is connected with a downstream pipeline through the one-way valve I, and a buffer is arranged between the O port of the two-position four-way reversing valve and the one-way valve I.
3. The self-charging hydraulic control piston valve of claim 1 wherein the pressure port is at an inlet end of the valve body.
4. The self-charging hydraulic control piston valve of claim 1, wherein the valve body and the piston body are of a unitary construction.
5. The self-charging hydraulic control piston valve of claim 1, wherein the spool is a stepped piston spool.
6. The self-charging hydraulic control piston valve as claimed in claim 1 or 5, wherein a sealing member is provided between the spool and the piston body.
7. The self-energy-storage hydraulic-control piston valve as claimed in claim 1 or 5, wherein a sealing member is arranged between the right end of the valve core and the outlet of the valve body.
8. The self-charging hydraulic control piston valve as in claim 1, wherein a stop step is provided in the piston body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835108.3U CN212273050U (en) | 2020-05-19 | 2020-05-19 | Self-energy-storage hydraulic control piston valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020835108.3U CN212273050U (en) | 2020-05-19 | 2020-05-19 | Self-energy-storage hydraulic control piston valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212273050U true CN212273050U (en) | 2021-01-01 |
Family
ID=73877450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020835108.3U Expired - Fee Related CN212273050U (en) | 2020-05-19 | 2020-05-19 | Self-energy-storage hydraulic control piston valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212273050U (en) |
-
2020
- 2020-05-19 CN CN202020835108.3U patent/CN212273050U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211104 Address after: Zhengsheng science and technology complex building, middle section of Yunfeng Road, Baoqing science and Technology Industrial Park, Ailian street, Shuangqing District, Shaoyang City, Hunan Province Patentee after: Hunan Quanwei Valve Co.,Ltd. Address before: Room 202, unit 1, building 3, Shengda building, Shuangyuan Road, Daxiang district, Shaoyang City, Hunan Province, 422000 Patentee before: Tang Weiguo |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |