CN111188934A - Intelligent emergency cut-off straight-stroke valve device and use method - Google Patents
Intelligent emergency cut-off straight-stroke valve device and use method Download PDFInfo
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- CN111188934A CN111188934A CN201811349988.7A CN201811349988A CN111188934A CN 111188934 A CN111188934 A CN 111188934A CN 201811349988 A CN201811349988 A CN 201811349988A CN 111188934 A CN111188934 A CN 111188934A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 138
- 239000003921 oil Substances 0.000 claims abstract description 42
- 238000004146 energy storage Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000007774 longterm Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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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
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses an intelligent emergency cut-off straight-stroke valve device and a using method thereof, and belongs to the technical field of oil and gas storage and transportation. The hydraulic oil pump comprises a straight stroke valve, a hydraulic oil cylinder, a switch indicating rod, a piston rod, an energy accumulator, a gear pump module, a check valve module, an oil tank module and the like, wherein the piston is positioned in the hydraulic oil cylinder and divides the hydraulic oil cylinder into an upper part and a lower part which are respectively a first hydraulic oil cylinder and a second hydraulic oil cylinder, the first hydraulic oil cylinder is connected with the energy accumulator, the upper half part in the energy accumulator is a high-pressure air bag, the lower half part in the energy accumulator is high-pressure hydraulic oil, a pressure transmitter B is arranged on a hydraulic oil pipeline B, and a pressure; the second hydraulic cylinder is connected with the oil tank module through a hydraulic oil pipeline C; the hydraulic oil pipeline C is provided with an electromagnetic valve and a fusible plug. The invention can be suitable for the oil inlet and outlet pipelines of the storage tank, has the function of self energy storage, and can realize the emergency cut-off of the storage tank and the oil inlet and outlet pipelines by relying on high-pressure hydraulic oil in the power failure and fire hazard states.
Description
Technical Field
The invention belongs to the technical field of oil and gas storage and transportation, and particularly relates to an intelligent emergency cut-off straight-stroke valve device and a using method thereof.
Background
In the fire explosion accident of the petrochemical storage tank, the accident is further expanded because the valve of the oil inlet and outlet pipeline of the storage tank cannot be cut off in time. The emergency cut-off valve can quickly cut off an oil inlet and outlet pipeline of the storage tank. Under the same thrust output, the hydraulic actuating mechanism has smaller volume, lighter weight and better applicability than a pneumatic actuating mechanism. CN205978743U discloses a valve actuator based on a gas-liquid combined spring, in which high-pressure gas enters a hydraulic cylinder to further quickly push a valve rod to move. Under the long-term use, the hydraulic oil pipeline accessories of the emergency cut-off valve inevitably have leakage points, especially a normally open valve of a storage tank, an execution mechanism can only act under the emergency condition to execute a valve closing process, once the pressure of hydraulic oil at the valve closing side is insufficient, the oil inlet and outlet pipeline cannot be cut off rapidly, and therefore the emergency cut-off valve has a self-energy storage function.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention provides an intelligent emergency cut-off straight-stroke valve device and a using method thereof, which can be suitable for upgrading and reconstructing a manual gate valve of an oil inlet and outlet pipeline of a storage tank, have a self-energy storage function, and can automatically realize the emergency cut-off of the storage tank and the oil inlet and outlet pipeline by relying on high-pressure hydraulic oil in the power failure and fire disaster states.
The technical solution comprises:
the utility model provides an intelligent emergency cut-off straight stroke valve device, its includes straight stroke valve, hydraulic cylinder, switch indicator, piston rod, energy storage ware, gear pump module, check valve module, oil tank module, straight stroke valve install on advancing oil pipe line, straight stroke valve be connected with valve rod, its characterized in that:
the piston is positioned in the hydraulic oil cylinder, the hydraulic oil cylinder is divided into an upper part and a lower part which are respectively a first hydraulic oil cylinder and a second hydraulic oil cylinder, one end of the piston rod is arranged below the piston, the other end of the piston rod is connected with the valve rod, a switch indicating rod is connected above the piston, and the switch indicating rod can move up and down along with the piston;
the first hydraulic oil cylinder is connected with the energy accumulator through a hydraulic oil pipeline B, the upper half part in the energy accumulator is a high-pressure air bag, the lower half part in the energy accumulator is high-pressure hydraulic oil, a pressure transmitter B is arranged on the hydraulic oil pipeline B, and a pressure transmitter A is arranged at the top of the energy accumulator;
the hydraulic oil pipeline B is provided with a branch pipeline, and the branch pipeline is connected to the oil tank module after passing through the one-way valve module and the gear pump module in sequence.
The check valve module only allows hydraulic oil to flow to the accumulator and the first hydraulic oil cylinder through the gear pump module, and does not allow the hydraulic oil to flow reversely.
The second hydraulic cylinder is connected with the oil tank module through a hydraulic oil pipeline C, and is also provided with an inlet connected with the hydraulic oil pipeline A;
the hydraulic oil pipeline C is provided with an electromagnetic valve and a fusible plug;
the piston rod is connected with the valve rod through a connecting module.
Further, a seal ring is arranged on the circumference of the piston.
Furthermore, the sealing ring is provided with three channels.
Another task of the present invention is to provide a method for using an intelligent emergency shut-off straight-stroke valve device, which sequentially comprises the following steps:
a, opening the straight stroke valve through the interaction of the piston, the piston rod, the valve rod and hydraulic oil;
b, enabling hydraulic oil to enter the middle lower part of the energy accumulator through the upward movement of the piston, and storing energy for the next emergency cut-off of the straight stroke valve;
c, when the pressure transmitter A or the pressure transmitter B monitors that the pressure is insufficient, automatically starting a gear pump module to convey hydraulic oil into the first hydraulic oil cylinder and the energy accumulator;
d, when the electric power is suddenly lost, the normally closed electromagnetic valve is opened, the hydraulic oil in the second hydraulic oil cylinder flows back to the oil tank module through the electromagnetic valve, and the straight stroke valve is emergently cut off under the action of high-pressure hydraulic oil at the lower part of the energy accumulator;
and e, when a fire disaster occurs in the tank area, the fusible plug is melted, the branch pipeline is conducted, hydraulic oil in the second hydraulic oil cylinder flows back to the oil tank module through the conducted branch pipeline, and the piston pushes the piston rod, the valve rod and the straight stroke valve to move downwards under the action of high-pressure hydraulic oil at the lower part of the energy accumulator, so that the straight stroke valve is cut off emergently.
Further, the step a specifically comprises the following steps: hydraulic oil enters the second hydraulic oil cylinder through the hydraulic oil pipeline A, at the moment, the hydraulic oil pushes the piston to move upwards, the piston drives the piston rod to move upwards, and then the valve rod is driven to move upwards, so that the straight stroke valve is opened.
Furthermore, in the step B, when the piston moves upwards, the hydraulic oil in the first hydraulic oil cylinder is pushed to enter the middle lower part of the energy accumulator along the hydraulic oil pipeline B, and at the moment, the hydraulic oil positioned below in the energy accumulator extrudes the high-pressure air bag above, so that the pressure of the energy accumulator is increased, and energy is stored for the next emergency cut-off of the straight stroke valve.
Further, the step c comprises the following specific steps: when the pressure transmitter A or the pressure transmitter B monitors that the pressure is insufficient, the gear pump module is automatically started, hydraulic oil is sucked from the oil tank module, and the hydraulic oil enters the lower half parts of the first hydraulic oil cylinder and the energy accumulator through the check valve module and the hydraulic oil pipeline B.
Furthermore, in the step d, when the hydraulic oil in the second hydraulic cylinder flows back to the oil tank module, the pressure at the lower part of the piston is continuously reduced, and at the moment, the high-pressure hydraulic oil at the lower part of the energy accumulator continuously and quickly enters the first hydraulic cylinder, so that the piston pushes the piston rod, the valve rod and the straight stroke valve to move downwards, and the straight stroke valve is cut off emergently.
Further, in step e, the fusible plug melting temperature is set to 75 ℃. This ensures that the straight stroke valve can be switched off urgently before the electrical components burn out.
The beneficial technical effects brought by the invention are as follows:
the invention develops an intelligent emergency cut-off straight-stroke valve device which can be suitable for an oil inlet and outlet pipeline of a storage tank, has a self-energy storage function, and can realize the emergency cut-off of the storage tank and the oil inlet and outlet pipeline in the power failure and fire disaster states.
Other beneficial technical effects of the invention are seen in the steps of the using method of the intelligent emergency cut-off straight-stroke valve device in the specific embodiment.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an intelligent slam-shut straight-stroke valve arrangement of the present invention;
in the figure, 1-tank module; 2-a gear pump module; 3-a one-way valve module; 4-hydraulic oil pipeline A; 5-a hydraulic oil cylinder; 6-sealing ring; 7-switch indication lever; 8-a piston; 9-a piston rod; 10-a connection module; 11-a valve stem; 12-a straight-stroke valve; 13-oil inlet and outlet lines; 14-pressure transmitter B; 15-hydraulic oil line B; 16-accumulator lower high pressure hydraulic oil; 17-high pressure air bag at the upper part of the energy accumulator; 18-pressure transmitter a; 19-a solenoid valve; 20-hydraulic oil line C; 21-fusible plug.
Detailed Description
The invention provides an intelligent emergency cut-off straight stroke valve device and a using method thereof, and the invention is described in detail with reference to specific embodiments in order to make the advantages and technical scheme of the invention clearer and clearer.
As shown in fig. 1, the intelligent emergency cut-off straight stroke valve device of the invention comprises an oil tank module 1, a gear pump module 2, a check valve module 3, a hydraulic oil pipeline a4, a hydraulic oil cylinder 5, a sealing ring 6, a switch indicating rod 7, a piston 8, a piston rod 9, a connecting module 10, a valve rod 11, a straight stroke valve 12, an oil inlet and outlet pipeline 13, a pressure transmitter B14, a hydraulic oil pipeline B15, high-pressure hydraulic oil 16 at the lower part of an accumulator, a high-pressure air bag 17 at the upper part of the accumulator, a pressure transmitter a18, an electromagnetic valve 19, a hydraulic oil pipeline C20 and an fusible plug 21.
The connection relation of the components is as follows: the straight stroke valve 12 is positioned on an oil inlet and outlet pipeline 13, the straight stroke valve 12 is connected with a valve rod 11, the valve rod 11 is connected with a piston rod 9 through a connecting module 10, the upper part of the piston rod 9 is provided with a piston 8, three sealing rings 6 are arranged in the circumferential direction of the piston 8, and the hydraulic oil cylinder 5 is divided into an upper part and a lower part which are respectively a first hydraulic oil cylinder positioned above and a second hydraulic oil cylinder positioned below. The upper part of the piston 8 is connected with a switch indicating rod 7, and a field patrol inspector can judge the opening and closing of the straight-stroke valve 12 by looking at the switch indicating rod 7.
The second hydraulic cylinder is connected with the oil tank module 1 through a hydraulic oil pipeline C20, and is also provided with an inlet connected with a hydraulic oil pipeline A4; the hydraulic oil pipeline C20 is provided with an electromagnetic valve 19 and a fusible plug 21; the other branch of the hydraulic oil pipeline B15 is connected to the oil tank module 1 after passing through the check valve module 3 and the gear pump module 2 in sequence. The check valve module 3 only allows hydraulic oil to flow to the accumulator and the first hydraulic oil cylinder through the gear pump module 2, and does not allow reverse flow.
When hydraulic oil enters the lower part of the piston 8 through the hydraulic oil pipeline A4, the piston 8 drives the piston rod 9 to gradually move upwards along with the increase of the hydraulic oil at the lower part of the piston 8, and the piston rod 9 drives the valve rod 11 to move upwards through the connecting module 10, so that the opening of the straight-stroke valve 12 is realized. When the piston 8 moves upwards, the hydraulic oil in the first hydraulic cylinder is pushed to enter the energy accumulator through the hydraulic oil pipeline B15, the high-pressure hydraulic oil 16 at the lower part of the energy accumulator is gradually increased, the high-pressure air bag 17 at the upper part of the energy accumulator is compressed, and the pressure in the energy accumulator is gradually increased, so that energy is provided for the next emergency cut-off of the straight stroke valve 12. Under the long-term use, when the pressure transmitter B14 or the pressure transmitter A18 detects that the pressure is insufficient, the gear pump module 2 can be automatically started, hydraulic oil is sucked from the oil tank module 1, and enters the upper part of the piston 8 and the lower part of the energy accumulator through the check valve module 3 and the hydraulic oil pipeline B15, so that the sufficient energy is ensured to realize the emergency cut-off function. When electric power is suddenly lost in the tank area, the normally closed electromagnetic valve 19 is opened, hydraulic oil on the lower portion of the piston 8 flows back to the oil tank module 1 through the electromagnetic valve 19, and under the action of high-pressure hydraulic oil 16 on the lower portion of the energy accumulator, the piston 8 can quickly push the piston rod 9, the valve rod 11 and the straight stroke valve 12 to move downwards, so that the function of emergently cutting off the straight stroke valve is achieved. Under the fire disaster of the tank area, the fusible plug 21 is fused, the hydraulic oil branch where the fusible plug is located is conducted, the hydraulic oil on the lower portion of the piston 8 can flow back to the oil tank module 1 through the fusible plug 21, and under the action of the high-pressure hydraulic oil 16 on the lower portion of the energy accumulator, the piston 8 can quickly push the piston rod 9, the valve rod 11 and the straight stroke valve 12 to move downwards, so that the function of cutting off the straight stroke valve emergently is achieved.
The use method of the intelligent emergency cut-off straight stroke valve device comprises the following steps:
(1) when hydraulic oil enters the lower part of the piston 8 through the hydraulic oil pipeline A4, the piston 8 drives the piston rod 9 to gradually move upwards along with the increase of the hydraulic oil at the lower part of the piston 8, and the piston rod 9 drives the valve rod 11 to move upwards through the connecting module 10, so that the opening of the straight-stroke valve 12 is realized;
(2) when the piston 8 moves upwards, hydraulic oil on the upper part of the piston 8 enters the energy accumulator through a hydraulic oil pipeline B15, high-pressure hydraulic oil 16 on the lower part of the energy accumulator is gradually increased to compress a high-pressure air bag 17 on the upper part of the energy accumulator, and the pressure in the energy accumulator is gradually increased, so that energy is provided for the next emergency cut-off of the straight stroke valve;
(3) under long-term use, when the pressure transmitter B14 or the pressure transmitter A18 monitors that the pressure is insufficient, the gear pump module 2 is automatically started, hydraulic oil is sucked from the oil tank module 1, and enters the upper part of the piston 8 and the lower part of the energy accumulator through the check valve module 3 and the hydraulic oil pipeline B15, so that sufficient energy is ensured to realize an emergency cut-off function;
(4) when power is suddenly lost in the tank area, the normally closed electromagnetic valve 19 is opened, hydraulic oil at the lower part of the piston 8 flows back to the oil tank module 1 through the electromagnetic valve 19, the pressure at the lower part of the piston 8 is continuously reduced, and at the moment, high-pressure hydraulic oil 16 at the lower part of the energy accumulator continuously and quickly enters the first hydraulic oil cylinder, so that the piston 8, the piston rod 9, the valve rod 11 and the straight stroke valve 12 are quickly pushed to quickly move downwards, and the straight stroke valve is emergently cut off;
(5) under the fire of a tank area, the fusible plug 21 is melted, a hydraulic oil branch where the fusible plug 21 is located is conducted, hydraulic oil on the lower portion of the piston 8 can flow back to the oil tank module 1 through the fusible plug 21, and under the action of high-pressure hydraulic oil 16 on the lower portion of the energy accumulator, the piston 8, the piston rod 9, the valve rod 11 and the straight stroke valve 12 are quickly pushed to move downwards, so that the function of emergently cutting off the straight stroke valve 12 is achieved.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
Although terms such as tank module 1, gear pump module 2, non-return valve module 3 etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides an intelligent emergency cut-off straight stroke valve device, its includes straight stroke valve, hydraulic cylinder, switch indicator, piston rod, energy storage ware, gear pump module, check valve module, oil tank module, straight stroke valve install on advancing oil pipe line, straight stroke valve be connected with valve rod, its characterized in that:
the piston is positioned in the hydraulic oil cylinder, the hydraulic oil cylinder is divided into an upper part and a lower part which are respectively a first hydraulic oil cylinder and a second hydraulic oil cylinder, one end of the piston rod is arranged below the piston, the other end of the piston rod is connected with the valve rod, a switch indicating rod is connected above the piston, and the switch indicating rod can move up and down along with the piston;
the first hydraulic oil cylinder is connected with the energy accumulator through a hydraulic oil pipeline B, the upper half part in the energy accumulator is a high-pressure air bag, the lower half part in the energy accumulator is high-pressure hydraulic oil, a pressure transmitter B is arranged on the hydraulic oil pipeline B, and a pressure transmitter A is arranged at the top of the energy accumulator;
the hydraulic oil pipeline B is provided with a branch pipeline, and the branch pipeline is connected to the oil tank module after passing through the one-way valve module and the gear pump module in sequence;
the second hydraulic cylinder is connected with the oil tank module through a hydraulic oil pipeline C, and is also provided with an inlet connected with the hydraulic oil pipeline A;
and the hydraulic oil pipeline C is provided with an electromagnetic valve and an fusible plug.
2. An intelligent slam-shut straight stroke valve device as defined in claim 1, wherein: the piston rod is connected with the valve rod through a connecting module.
3. An intelligent slam-shut straight stroke valve device as defined in claim 1, wherein: and a sealing part is arranged on the periphery of the piston.
4. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 1, characterized by comprising the following steps in sequence:
a, opening the straight stroke valve through the interaction of the piston, the piston rod, the valve rod and hydraulic oil;
b, enabling hydraulic oil to enter the middle lower part of the energy accumulator through the upward movement of the piston, and storing energy for the next emergency cut-off of the straight stroke valve;
c, when the pressure transmitter A or the pressure transmitter B monitors that the pressure is insufficient, automatically starting an oil tank module to convey hydraulic oil into the first hydraulic oil cylinder and the energy accumulator;
d, when the electric power is suddenly lost, the normally closed electromagnetic valve is opened, the hydraulic oil in the second hydraulic oil cylinder flows back to the oil tank module through the electromagnetic valve, and the straight stroke valve is emergently cut off under the action of high-pressure hydraulic oil at the lower part of the energy accumulator;
and e, when a fire disaster occurs in the tank area, the fusible plug is melted, the branch pipeline is conducted, hydraulic oil in the second hydraulic oil cylinder flows back to the oil tank module through the conducted branch pipeline, and the piston pushes the piston rod, the valve rod and the straight stroke valve to move downwards under the action of high-pressure hydraulic oil at the lower part of the energy accumulator, so that the straight stroke valve is cut off emergently.
5. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 4, wherein: the step a comprises the following specific steps: hydraulic oil enters the second hydraulic oil cylinder through the hydraulic oil pipeline A, at the moment, the hydraulic oil pushes the piston to move upwards, the piston drives the piston rod to move upwards, and then the valve rod is driven to move upwards, so that the straight stroke valve is opened.
6. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 4, wherein: in the step B, when the piston moves upwards, the hydraulic oil in the first hydraulic oil cylinder is pushed to enter the middle lower part of the energy accumulator along the hydraulic oil pipeline B, and at the moment, the hydraulic oil positioned below in the energy accumulator extrudes the high-pressure air bag above, so that the pressure of the energy accumulator is increased, and energy is stored for the next emergency cut-off of the straight stroke valve.
7. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 4, wherein: the step c comprises the following specific steps: when the pressure transmitter A or the pressure transmitter B monitors that the pressure is insufficient, the gear pump module is automatically started, hydraulic oil is sucked from the oil tank module, and the hydraulic oil enters the lower half parts of the first hydraulic oil cylinder and the energy accumulator through the check valve module and the hydraulic oil pipeline B.
8. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 4, wherein:
in the step d, when the hydraulic oil in the second hydraulic oil cylinder flows back to the oil tank module, the pressure of the lower part of the piston is continuously reduced, and at the moment, the high-pressure hydraulic oil at the lower part of the energy accumulator continuously enters the first hydraulic oil cylinder, so that the piston, the piston rod, the valve rod and the straight stroke valve are pushed to rapidly move downwards, and the straight stroke valve is cut off emergently.
9. The use method of the intelligent emergency shut-off straight stroke valve device according to claim 4, wherein: in step e, the fusible plug melting temperature is set to 75 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349988.7A CN111188934B (en) | 2018-11-14 | 2018-11-14 | Intelligent emergency cut-off straight-stroke valve device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349988.7A CN111188934B (en) | 2018-11-14 | 2018-11-14 | Intelligent emergency cut-off straight-stroke valve device and use method |
Publications (2)
| Publication Number | Publication Date |
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| CN111188934A true CN111188934A (en) | 2020-05-22 |
| CN111188934B CN111188934B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811349988.7A Active CN111188934B (en) | 2018-11-14 | 2018-11-14 | Intelligent emergency cut-off straight-stroke valve device and use method |
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| CN (1) | CN111188934B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202965A (en) * | 2021-04-13 | 2021-08-03 | 深圳科荣达航空科技有限公司 | Volume control type valve |
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| DE2643038A1 (en) * | 1976-09-24 | 1978-03-30 | Herion Werke Kg | Reciprocating piston multiway valve - has proximity switch to indicate setting of valve axially reciprocated by electromagnet |
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| CN2110752U (en) * | 1991-11-30 | 1992-07-22 | 湖北省沙市市阀门总厂 | Accumulation pot type hydraulic control slow-closed butterfly valve |
| CN1157598A (en) * | 1994-07-15 | 1997-08-20 | 大宇电子株式会社 | Valve utilizing shape memory alloys and anti-lock brake system with valve |
| CN202561220U (en) * | 2012-04-10 | 2012-11-28 | 江苏金石阀业有限公司 | Improved hydraulic plate valve |
| CN206054892U (en) * | 2016-08-03 | 2017-03-29 | 上海杉得自动化控制有限公司 | A kind of safety Direct Travel executor |
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2018
- 2018-11-14 CN CN201811349988.7A patent/CN111188934B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2643038A1 (en) * | 1976-09-24 | 1978-03-30 | Herion Werke Kg | Reciprocating piston multiway valve - has proximity switch to indicate setting of valve axially reciprocated by electromagnet |
| CN1031591A (en) * | 1988-08-27 | 1989-03-08 | 长沙市阀门厂 | Hydraulic butterfly valve |
| CN2110752U (en) * | 1991-11-30 | 1992-07-22 | 湖北省沙市市阀门总厂 | Accumulation pot type hydraulic control slow-closed butterfly valve |
| CN1157598A (en) * | 1994-07-15 | 1997-08-20 | 大宇电子株式会社 | Valve utilizing shape memory alloys and anti-lock brake system with valve |
| CN202561220U (en) * | 2012-04-10 | 2012-11-28 | 江苏金石阀业有限公司 | Improved hydraulic plate valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202965A (en) * | 2021-04-13 | 2021-08-03 | 深圳科荣达航空科技有限公司 | Volume control type valve |
| CN113202965B (en) * | 2021-04-13 | 2022-08-23 | 深圳科荣达航空科技有限公司 | Volume control type valve |
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| Publication number | Publication date |
|---|---|
| CN111188934B (en) | 2022-03-18 |
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Effective date of registration: 20220225 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Applicant after: Sinopec Safety Engineering Research Institute Co., Ltd Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant before: CHINA PETROLEUM & CHEMICAL Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec |
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