CN114893602B - Electric explosion-gas explosion combined isolation valve and control method thereof - Google Patents
Electric explosion-gas explosion combined isolation valve and control method thereof Download PDFInfo
- Publication number
- CN114893602B CN114893602B CN202210456470.3A CN202210456470A CN114893602B CN 114893602 B CN114893602 B CN 114893602B CN 202210456470 A CN202210456470 A CN 202210456470A CN 114893602 B CN114893602 B CN 114893602B
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- electric explosion
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- 238000004880 explosion Methods 0.000 title claims abstract description 297
- 238000002955 isolation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 90
- 239000012530 fluid Substances 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000005474 detonation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to an isolation valve, in particular to an electric explosion-gas explosion combined isolation valve and a control method thereof, which solve the problems of the prior art that the electric explosion valve is high in energy required by single use, high in explosion pressure and complex in system caused by the fact that the air explosion valve is required to be used singly and external energy is required. The electric explosion-gas explosion combined isolation valve comprises: the electric explosion device comprises an inlet pipeline, an electric explosion component, a control pipeline and a gas explosion component, wherein the two technologies are combined based on the original gas explosion valve and the original electric explosion valve which are used independently, the electric explosion component only seals a bypass medium, the control of the bypass is further realized, and the diameter of a bushing of the electric explosion device is obviously smaller than that of the inlet pipeline, so that the energy of the electric explosion tube required for cutting the bushing is small; the upstream sealing medium can be used as energy source for controlling the gas explosion valve, an external energy supply system is not needed, the pressure medium is always filled in the control cavity in the medium circulation process, the gas explosion cutter is prevented from retreating, and an anti-retreating structure is not needed.
Description
Technical Field
The invention relates to an isolation valve, in particular to an electric explosion-gas explosion combined isolation valve and a control method thereof.
Background
In modern liquid control systems in the fields of aviation, aerospace, petrochemical, energy, power and the like, disposable isolation valve products are used for ensuring reliable shut-off sealing before working of a fluid medium and low flow resistance circulation during working. The electric explosion valve and the gas explosion valve are two widely used isolation valves, and are usually used separately in actual use at present, and the energy sources used in work of the electric explosion valve and the gas explosion valve are different. The electric explosion valve uses electric explosion pressure generated by electrifying an electric explosion tube integrated in the valve as an energy source, and when a high-pressure-resistant large-flow radial pipeline is isolated, the electric explosion valve is used for ensuring reliable shutoff before working, and the liner wall is thicker, so that the medium is circulated for realizing reliable cutting and breaking during working, the electric explosion tube energy required by the electric explosion valve is high, the explosion pressure is high during working, and the safety is poor; the air explosion valve usually uses external fluid medium pressure as energy, and needs a set of external pressurizing and controlling system to supply power to the air explosion valve, and the system is complex and has low reliability.
Disclosure of Invention
The invention aims to solve the problems of poor safety caused by high energy and high bursting pressure required by the single use of an electric explosion valve and the defects of complex system caused by the need of external energy supply of the single use of the air explosion valve in the prior art, and provides an electric explosion-air explosion combined isolation valve and a control method thereof.
In order to achieve the above purpose, the technical solution provided by the present invention is:
The utility model provides an electric explosion-gas explosion combination formula isolation valve, includes inlet pipeline, electric explosion subassembly, control pipeline and gas explosion subassembly, its special character lies in: the inlet pipeline is used for communicating an upstream high-pressure fluid medium, and a bypass with a small drift diameter is arranged on the side surface of the inlet pipeline; the electric explosion assembly comprises an electric explosion shell, an electric explosion cutter coaxially arranged in the electric explosion shell, and an electric explosion bushing with a blind end arranged along the radial direction of the electric explosion shell; one end of the electric explosion bushing is positioned in the electric explosion shell, and the other end of the electric explosion bushing is communicated with the bypass; one end of the electric explosion shell is provided with an inner conical surface, and the other end of the electric explosion shell is used for connecting an electric explosion tube and forming an electric explosion cavity with the electric explosion tube and the electric explosion cutter; an outer conical surface matched with the inner conical surface is arranged at one end of the electric explosion cutter, an axial distance is reserved between the outer conical surface and the inner conical surface, a radial first groove and a waist-shaped overflow hole of the radial through electric explosion cutter are sequentially arranged on the electric explosion cutter along the axial direction, the first groove is positioned at one end far away from the electric explosion tube, and the blind end of the electric explosion bushing is positioned in the first groove; an electric explosion assembly outlet is radially arranged on the side wall of the electric explosion shell and is communicated with the control pipeline; the gas explosion assembly comprises a gas explosion shell, a gas explosion cutter arranged in the gas explosion shell, and a gas explosion bushing with a blind end radially arranged at one end of the gas explosion shell; one end of the gas explosion bushing is positioned in the gas explosion shell, and the other end of the gas explosion bushing is communicated with the inlet pipeline; a cutting cavity A and a control cavity B are arranged in the gas explosion shell, and the inner diameter of the cutting cavity A is smaller than that of the control cavity B; the air explosion cutter is of a step columnar structure, the small end of the air explosion cutter is arranged in the cutting cavity A, the large end of the air explosion cutter is arranged in the control cavity B, the inner diameter of the control cavity B is matched with that of the control cavity B, and an axial distance is reserved between the small end of the air explosion cutter and the outer end of the control cavity B; the side surface of the small end of the air explosion cutter is provided with a radial second groove; the blind end of the gas explosion bushing is arranged in the second groove; a medium outlet communicated with the cutting cavity A is arranged on the side wall of the gas explosion shell along the radial direction at the position opposite to the gas explosion bushing; a control port is arranged on the side wall of the gas explosion shell along the radial direction at the connection position of the control cavity B and the cutting cavity A, one end of the control port is communicated with the control cavity B, and the other end of the control port is communicated with a control pipeline; and a limiting end cover is arranged at the outer end part of the control cavity B.
Further, the diameter of the electric explosion bushing is smaller than that of the gas explosion bushing. The electric explosion bushing which needs to be cut by the electric explosion cutter has small diameter and small cutting force, so that the required electric explosion tube has small energy and the safety of the electric explosion valve can be improved.
Further, a cavity is arranged at the end part of the other end of the electric explosion cutter, and an electric explosion cavity is formed between the electric explosion cutter and the electric explosion tube and between the electric explosion cutter and the electric explosion shell. The electric explosion cavity has good sealing effect and better safety under the impact of electric deflagration gas.
Further, an annular groove is formed in the inner side surface of the control cavity B, which is connected with the cutting cavity A, and is communicated with the control port;
And the air explosion cutter is arranged on the end surface of one side, close to the cutting cavity A, of the control cavity B, and an inner ring groove is coaxially arranged at the position corresponding to the annular groove.
Further, a sealing ring and a check ring are arranged between the electric explosion cutter and the electric explosion shell;
A sealing ring is arranged between the electric explosion bushing and the electric explosion shell;
And a sealing ring and a check ring are arranged between the gas explosion cutter and the gas explosion shell.
Further, an outer ring groove coaxial with the inner ring groove is arranged on the end surface of the air explosion cutter, which is arranged in the control cavity B and is close to one side of the limiting end cover;
And a through hole coaxial with the second groove is radially arranged on the small end of the air explosion cutter.
The outer ring groove and the through hole have weight reduction effect.
Further, the limiting end cover is connected with the air explosion shell outside the control cavity B through threads.
Further, the limiting end cover is provided with a vent hole, the vent hole is communicated with the external environment, and pressure is prevented from being generated between the limiting end cover and the air explosion cutter during movement.
The invention also provides a control method of the electric explosion-gas explosion combined isolation valve, which is characterized by comprising the following steps:
step 1, controlling detonation of an electric detonation tube to form high-pressure fuel gas;
Step 2, the high-pressure gas pushes the electric explosion cutter to move, the blind end of the electric explosion bushing is cut, the communication between the electric explosion bushing and an outlet of the electric explosion assembly is realized, and meanwhile, the outer conical surface of the electric explosion cutter is embedded into the inner conical surface of the electric explosion shell to prevent the electric explosion shell from retreating;
and 3, enabling an upstream pressure medium to enter the control cavity B through the bypass, the electric explosion component and the control pipeline in sequence, pushing the air explosion cutter to move so that the blind end of the air explosion bushing is cut, and enabling the air explosion cutter to move to be limited by the limiting end cover, so that the smoothness of a medium flow channel is realized.
Compared with the prior art, the invention has the advantages that:
1. According to the invention, the electric explosion component and the gas explosion component are combined for use, the electric explosion component only seals the bypass medium, the gas explosion component is controlled by controlling the bypass, and the diameter of the bushing is obviously smaller than that of the inlet pipeline, so that the electric explosion tube required for cutting the bushing is small in energy, relatively small in explosion pressure and high in safety of the electric explosion component.
2. The energy of the gas explosion assembly is derived from the upstream sealing medium, the upstream medium is reliably sealed through the electric explosion assembly, the possibility of misoperation of the gas explosion valve caused by gas leakage control when the gas explosion valve is independently used is greatly reduced, and the sealing reliability of the gas explosion assembly is improved.
3. According to the invention, upstream medium enters the control pipeline through the bypass and the electric explosion component, so that the air explosion cutter is pushed to move, the control of the air explosion component is realized, an external energy supply and control system is not needed, the complexity of the system is reduced, and the working reliability is high.
4. The air explosion cutter is pushed by the upstream pressure medium, and the control cavity is always filled with the upstream pressure medium in the medium circulation process, so that the air explosion cutter can be effectively prevented from retreating, and an additional cutter retreating prevention structure is not needed.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the combined electric and gas explosion isolation valve of the present invention (vent holes of the gas explosion valve limit end cap are not shown in the drawings);
FIG. 2 is a cross-sectional view of an electrical explosion assembly according to the present invention;
FIG. 3 is a cross-sectional view of a gas explosion assembly of the present invention;
reference numerals illustrate:
1-inlet pipeline, 2-electric explosion component, 3-control pipeline, 4-gas explosion component, 5-electric explosion shell, 6-electric explosion bushing, 7-electric explosion cutter, 8-electric explosion tube, 9-electric explosion bushing, 10-electric explosion shell, 11-electric explosion cutter, 12-limit end cover, 13-bypass, 14-electric explosion component outlet, 15-medium outlet, 16-control port, A-cutting cavity and B-control cavity.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
The invention relates to an electric explosion-gas explosion combined isolation valve, which is shown in figures 1 to 3, and comprises an inlet pipeline 1, an electric explosion component 2, a control pipeline 3 and a gas explosion component 4; the inlet pipeline 1 is used for communicating an upstream high-pressure fluid medium, and a bypass 13 with a small drift diameter is arranged on the side surface of the inlet pipeline 1; the electric explosion assembly 2 comprises an electric explosion shell 5, an electric explosion cutter 7 coaxially arranged in the electric explosion shell 5 and an electric explosion bushing 6 with a blind end arranged along the radial direction of the electric explosion shell 5; one end of the electric explosion bushing 6 is positioned in the electric explosion shell 5, and the other end of the electric explosion bushing is communicated with the bypass 13; one end of the electric explosion shell 5 is provided with an inner conical surface, and the other end is used for connecting the electric explosion tube 8 and forming an electric explosion cavity with the electric explosion tube 8 and a cavity at the other end of the electric explosion cutter 7; an outer conical surface matched with the inner conical surface is arranged at one end of the electric explosion cutter 7, an axial distance is reserved between the outer conical surface and the inner conical surface, a radial first groove and a waist-shaped overflow hole of the radial through electric explosion cutter 7 are sequentially arranged on the electric explosion cutter 7 along the axial direction, the first groove is positioned at one end far away from the electric explosion tube 8, and the blind end of the electric explosion bushing 6 is positioned in the first groove; an electric explosion assembly outlet 14 is radially arranged on the side wall of the electric explosion shell 5 and opposite to the electric explosion bushing 6, and the electric explosion assembly outlet 14 is communicated with the control pipeline 3; a sealing ring and a check ring are arranged between the electric explosion cutter 7 and the electric explosion shell 5; and a sealing ring is arranged between the electric explosion bushing 6 and the electric explosion shell 5.
The gas explosion assembly 4 comprises a gas explosion shell 10, a gas explosion cutter 11 arranged in the gas explosion shell 10, and a gas explosion bushing 9 with a blind end radially arranged at one end of the gas explosion shell 10; one end of the gas explosion bushing 9 is positioned in the gas explosion shell 10, the other end of the gas explosion bushing 9 is communicated with the inlet pipeline 1, and the drift diameter of the gas explosion bushing 9 is larger than that of the electric explosion bushing 6; the gas explosion shell 10 is internally provided with a cutting cavity A and a control cavity B, the inner diameter of the cutting cavity A is smaller than that of the control cavity B, the outer end part of the control cavity B is provided with a limiting end cover 12, the limiting end cover is connected with the gas explosion shell 10 through threads, the end surface of the limiting end cover 12 is provided with a vent hole, and the vent hole is communicated with the external environment; the gas explosion cutter 11 is of a step columnar structure, the small end of the gas explosion cutter 11 is arranged in the cutting cavity A, the large end of the gas explosion cutter is arranged in the control cavity B, the inner diameter of the control cavity B is matched with that of the control cavity B, and an axial distance is reserved between the small end and the outer end of the control cavity B; a radial second groove is formed in the side face of the small end of the gas explosion cutter 11, the blind end of the gas explosion bushing 9 is arranged in the second groove, and a through hole coaxial with the second groove is formed in the gas explosion cutter 11 in the radial direction; a medium outlet 15 communicated with the cutting cavity A is arranged on the side wall of the gas explosion shell 10 along the radial direction at the position opposite to the gas explosion bushing 9; a control port 16 is arranged on the side wall of the gas explosion shell 10 along the radial direction at the position where the control cavity B is connected with the cutting cavity A, an annular groove is arranged on the inner side surface where the control cavity B is connected with the cutting cavity A, one end of the control port 16 is communicated with the control cavity B through the annular groove, and the other end is communicated with the control pipeline 3; the air explosion cutter 11 is arranged on the end face of the control cavity B, which is close to the side of the cutting cavity A, and is provided with an inner ring groove coaxially corresponding to the annular groove, and the end face of the side, which is close to the limiting end cover 12, is provided with an outer ring groove coaxially with the inner ring groove; a sealing ring and a check ring are arranged between the air explosion cutter 11 and the air explosion shell 10.
The specific use process of the embodiment of the invention is as follows:
As shown in fig. 1 to 3, when the valve is closed, an upstream pressure medium is sealed and stored in the inlet pipeline 1 and the bypass 13 respectively by the blind ends of the explosion bush 9 and the explosion bush 6, and when the valve starts to work, the high-pressure gas pressure formed by the detonation of the explosion tube 8 generates thrust to the explosion cutter 7 to push the explosion cutter 7 to move to the inner conical surface of the explosion shell 5, so that the cutter can be prevented from retreating, the blind end of the explosion bush 6 is cut, the flow passage of the explosion assembly 2 is unblocked, the upstream pressure medium passes through the waist-shaped overflow hole of the explosion cutter 7 to the outlet 14 of the explosion assembly, then the control pipeline 3 passes into the control cavity B to generate thrust to the explosion cutter 11, so that the explosion cutter 11 moves to be limited by the limiting end cover 12, and meanwhile, the blind end of the explosion bush 9 is cut by the explosion cutter 11, and the blind end is left in the cylindrical groove of the explosion cutter 11. In the process of pressure medium circulation, the bypass 13 and the control cavity B are always filled with medium, so that the air burst cutter 11 is kept in a state of being limited by the limiting end cover 12, and a medium flow channel is kept smooth. The invention is particularly suitable for use in systems for sealing high pressure media.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an electric explosion-gas explosion combination formula isolation valve, includes inlet pipeline (1), electric explosion subassembly (2), control pipeline (3) and gas explosion subassembly (4), its characterized in that:
the inlet pipeline (1) is used for communicating an upstream high-pressure fluid medium, and a bypass (13) with a small path is arranged on the side surface of the inlet pipeline (1);
The electric explosion assembly (2) comprises an electric explosion shell (5), an electric explosion cutter (7) coaxially arranged in the electric explosion shell (5) and an electric explosion bushing (6) with a blind end arranged along the radial direction of the electric explosion shell (5), wherein one end of the electric explosion bushing (6) is positioned in the electric explosion shell (5), and the other end of the electric explosion bushing is communicated with a bypass (13);
One end of the electric explosion shell (5) is provided with an inner conical surface, and the other end of the electric explosion shell is used for being connected with the electric explosion tube (8) and forms an electric explosion cavity with the electric explosion tube (8) and the electric explosion cutter (7); an outer conical surface matched with the inner conical surface is arranged at one end of the electric explosion cutter (7), an axial distance is reserved between the outer conical surface and the inner conical surface, a radial first groove and a waist-shaped overflow hole of the radial through electric explosion cutter (7) are sequentially arranged on the electric explosion cutter (7) along the axial direction, the first groove is positioned at one end far away from the electric explosion tube (8), and the blind end of the electric explosion bushing (6) is positioned in the first groove; an electric explosion assembly outlet (14) is arranged on the side wall of the electric explosion shell (5) at the position opposite to the electric explosion bushing (6) along the radial direction, and the electric explosion assembly outlet (14) is communicated with the control pipeline (3);
The gas explosion assembly (4) comprises a gas explosion shell (10), a gas explosion cutter (11) arranged in the gas explosion shell (10), and a gas explosion bushing (9) with a blind end radially arranged at one end of the gas explosion shell (10); one end of the gas explosion bushing (9) is positioned in the gas explosion shell (10), and the other end of the gas explosion bushing is communicated with the inlet pipeline (1); a cutting cavity A and a control cavity B are arranged in the gas explosion shell (10), and the inner diameter of the cutting cavity A is smaller than that of the control cavity B;
The air explosion cutter (11) is of a step columnar structure, the small end of the air explosion cutter (11) is arranged in the cutting cavity A, the large end of the air explosion cutter is arranged in the control cavity B and is matched with the inner diameter of the control cavity B, and an axial distance is reserved between the small end and the outer end of the control cavity B; the side surface of the small end of the air explosion cutter (11) is provided with a radial second groove; the blind end of the gas explosion bushing (9) is arranged in the second groove; a medium outlet (15) communicated with the cutting cavity A is arranged on the side wall of the gas explosion shell (10) along the radial direction at the position opposite to the gas explosion bushing (9); a control port (16) is radially arranged on the side wall of the gas explosion shell (10) at the position where the control cavity B is connected with the cutting cavity A, one end of the control port (16) is communicated with the control cavity B, and the other end is communicated with the control pipeline (3);
And a limiting end cover (12) is arranged at the outer end part of the control cavity B.
2. The combined electric and gas explosion isolation valve according to claim 1, wherein: the diameter of the electric explosion bushing (6) is smaller than that of the gas explosion bushing (9).
3. An electric explosion-gas explosion combined isolation valve according to claim 1 or 2, wherein: the other end of the electric explosion cutter (7) is provided with a cavity, and an electric explosion cavity is formed between the electric explosion cutter and the electric explosion tube (8) and between the electric explosion cutter and the electric explosion shell (5).
4. An electric-gas explosion combined isolation valve according to claim 3, wherein: an annular groove is formed in the inner side surface of the control cavity B, which is connected with the cutting cavity A, and the annular groove is communicated with the control port (16);
the air explosion cutter (11) is arranged on the end face of one side, close to the cutting cavity A, of the control cavity B, and an inner ring groove is arranged at a position corresponding to the annular groove.
5. The combined electric and gas explosion isolation valve according to claim 4, wherein: a sealing ring and a check ring are arranged between the electric explosion cutter (7) and the electric explosion shell (5);
A sealing ring is arranged between the electric explosion bushing (6) and the electric explosion shell (5);
a sealing ring and a check ring are arranged between the air explosion cutter (11) and the air explosion shell (10).
6. The combined electric and gas explosion isolation valve according to claim 5, wherein: an outer ring groove coaxial with the inner ring groove is arranged on the end surface of one side, close to the limiting end cover (12), of the control cavity B, of the air explosion cutter (11);
and a through hole coaxial with the second groove is radially arranged on the small end of the air explosion cutter (11).
7. The combined electric and gas explosion isolation valve according to claim 6, wherein: the limiting end cover (12) is connected with the air explosion shell (10) at the outer side of the control cavity B through threads.
8. The combined electric and gas explosion isolation valve according to claim 7, wherein: and the end face of the limiting end cover (12) is provided with a vent hole which is communicated with the external environment.
9. A control method of an electric explosion-gas explosion combined isolation valve according to any one of claims 1 to 8, comprising the steps of:
step 1, controlling an electric explosion tube (8) to detonate to form high-pressure fuel gas;
step 2, a high-pressure gas pushes the electric explosion cutter (7) to move, and the blind end of the electric explosion bushing (6) is cut open, so that the electric explosion bushing (6) is communicated with an outlet (14) of the electric explosion assembly, and meanwhile, the outer conical surface of the electric explosion cutter (7) is embedded into the inner conical surface of the electric explosion shell (5) to prevent back-off;
And 3, enabling an upstream pressure medium to sequentially enter a control cavity B through a bypass (13), an electric explosion assembly (2) and a control pipeline (3), pushing a gas explosion cutter (11) to move towards a limiting end cover (12) so that the blind end of the gas explosion bushing (9) is cut, enabling the gas explosion cutter (11) to move to be limited by the limiting end cover (12), enabling an inlet pipeline (1) to be communicated with a medium outlet (15), and enabling a medium runner to be smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210456470.3A CN114893602B (en) | 2022-04-27 | 2022-04-27 | Electric explosion-gas explosion combined isolation valve and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210456470.3A CN114893602B (en) | 2022-04-27 | 2022-04-27 | Electric explosion-gas explosion combined isolation valve and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114893602A CN114893602A (en) | 2022-08-12 |
| CN114893602B true CN114893602B (en) | 2024-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210456470.3A Active CN114893602B (en) | 2022-04-27 | 2022-04-27 | Electric explosion-gas explosion combined isolation valve and control method thereof |
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| CN (1) | CN114893602B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032204A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Non-electric explosion propagation type redundancy control electric explosion isolating valve |
| CN113847456A (en) * | 2021-09-17 | 2021-12-28 | 西安航天动力研究所 | Double-diaphragm gas explosion isolating valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7150058B2 (en) * | 2018-07-20 | 2022-10-07 | 浙江三花智能控制股▲ふん▼有限公司 | Electronic expansion valve, manufacturing method thereof and thermal management unit |
| CN213394609U (en) * | 2020-10-21 | 2021-06-08 | 宜宾三江机械有限责任公司 | Balanced type guide bottle opening structure |
| CN214808090U (en) * | 2021-06-02 | 2021-11-23 | 江苏中远消防设备有限公司 | Valve body of reset type electric explosion valve |
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2022
- 2022-04-27 CN CN202210456470.3A patent/CN114893602B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032204A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Non-electric explosion propagation type redundancy control electric explosion isolating valve |
| CN113847456A (en) * | 2021-09-17 | 2021-12-28 | 西安航天动力研究所 | Double-diaphragm gas explosion isolating valve |
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| CN114893602A (en) | 2022-08-12 |
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