CN112361017A - Deep low temperature motor ball valve - Google Patents
Deep low temperature motor ball valve Download PDFInfo
- Publication number
- CN112361017A CN112361017A CN202011367286.9A CN202011367286A CN112361017A CN 112361017 A CN112361017 A CN 112361017A CN 202011367286 A CN202011367286 A CN 202011367286A CN 112361017 A CN112361017 A CN 112361017A
- Authority
- CN
- China
- Prior art keywords
- ball
- valve
- motor
- ball valve
- replacement hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
-
- 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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention relates to a deep low temperature motor ball valve, which effectively improves the anti-freezing performance and the sealing performance of the ball valve by arranging a ball replacement hole, a valve rod replacement hole and a valve seat sealing structure on the ball valve.
Description
Technical Field
The invention belongs to the field of ball valves, and particularly relates to a deep low-temperature motor ball valve applied to a carrier rocket pressurization conveying system.
Background
The ball valve has the advantages of compact structure, small flow resistance, rapid opening and closing and the like, is easy to be combined with a rotating motor to realize the electromechanical integration of a valve product, is used for realizing the automatic control of the on-off of the deep low-temperature working medium of the pressurizing and conveying system, has the characteristics of high reliability, good sealing performance, long service life, automatic control and the like compared with manual switch products, is used for replacing the manual switch products, and can meet the requirements of the electromechanical integration control of the pressurizing and conveying system, the unattended rocket and the like. However, the new generation of carrier rockets requires that the valve can work in an extremely low temperature region (as low as 20K) such as liquid hydrogen, liquid oxygen and the like, and higher requirements are provided for the frost resistance, the explosion resistance, the sealing property, the reliability and the like of the ball valve.
Under deep low temperature, water vapor entering the ball valve is easy to condense, so that the moment for opening and closing the ball valve is increased, a motor with higher torque is required to drive the ball valve, the weight of the motor ball valve is bound to be increased, but the anti-freezing performance of the ball valve is important for the application industries, such as aerospace, which are particularly sensitive to weight; if the ball valve is unreliable in sealing performance, combustible working media such as hydrogen and the like are likely to leak from the inside of the ball valve, so that potential safety hazards such as explosion and the like are easily caused.
Disclosure of Invention
The invention aims to overcome the defects and provides a deep low-temperature ball valve, which effectively improves the anti-freezing performance and the sealing performance of the ball valve by arranging a ball replacement hole and a valve rod replacement hole on the ball valve and arranging a valve seat sealing structure, can be applied to deep low-temperature (as low as 20K) working environments, has the characteristics of high reliability, good sealing performance, long service life, automatic control and the like, is used for replacing products such as a manual switch and the like, and can meet the requirements of electromechanical integrated control of a pressurized conveying system, unmanned rocket and the like.
In order to achieve the above purpose, the invention provides the following technical scheme:
a deep low temperature motor ball valve comprises a motor and a ball;
the motor is fixedly connected with the ball valve and drives the ball valve to open and close;
the motor comprises an electrical contact pin, and the motor is connected with an external control system through the electrical contact pin;
the ball valve comprises a valve rod, a valve seat, a shell, a filler neck, a ball body and a ball replacement hole;
one end of the filler neck is connected with the shell, and the other end of the filler neck is connected with an external pipeline;
the ball body is arranged in the shell, a first ball replacement hole is formed in the ball body, and the first ball replacement hole is communicated with the pipe connecting nozzle and the interior of the ball body;
one end of the valve rod is arranged in the ball body, the other end of the valve rod is connected with the motor, and the motor drives the ball body to rotate through the valve rod to realize the opening and closing of the ball valve;
the valve seat is arranged between the filler neck and the ball body, and the ball body is compressed to form sealing.
Furthermore, the number of the first ball replacement holes is more than or equal to 1.
Further, above-mentioned ball valve still includes second ball replacement hole, second ball replacement hole locates on the spheroid, communicates casing and spheroid inside.
Further, above-mentioned ball valve still includes valve rod replacement hole, inside the valve rod was located to valve rod replacement hole, coaxial with the valve rod, inside intercommunication motor and spheroid.
Further, dark low temperature motor ball valve still includes valve rod bush, valve rod and valve rod bush clearance fit, and valve rod bush protection valve rod just does not hinder the valve rod and rotates.
Furthermore, the valve seat is provided with a groove which is tightly pressed with the ball body to form two seals.
Furthermore, the ball valve also comprises a disc spring, and the disc spring is arranged between the filler pipe nozzle and the valve seat to realize dynamic force compensation.
Furthermore, the motor further comprises a plastic seal, and the plastic seal is located outside the electric contact pin to ensure that working media do not leak.
Furthermore, the ball valve further comprises a second gasket, and the second gasket is used for sealing between the filler neck and the shell, so that the sealing and explosion-proof functions are realized.
Further, the deep low temperature motor ball valve further comprises a first gasket, and the motor and the ball valve are sealed through the first gasket.
Furthermore, the ball valve further comprises a stop block, and the stop block is arranged between the valve seat and the shell to ensure stable sealing of the valve seat.
Furthermore, the valve seat is made of an elastically deformable non-metallic material.
Further, the diameters of the first ball replacement hole, the second ball replacement hole and the valve rod replacement hole are 2-4 mm.
Furthermore, a V-shaped gap is formed between the two seals and the sphere, and the distance from the bottom of the V-shaped gap to the spherical surface is 0-0.5 mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) the deep low-temperature ball valve is provided with the ball replacement hole and the valve rod replacement hole, the interior of the low-temperature motor is replaced by low-temperature working media such as liquid hydrogen, liquid oxygen and the like, and the phenomenon that water vapor in the motor freezes and then blocks rotation at the deep low temperature due to the fact that air enters the interior of the low-temperature motor can be prevented.
(2) The electric interface part of the deep low-temperature ball valve, namely the periphery of the electric plug pin, forms plastic seal by adopting a glue pouring mode, ensures that low-temperature working medium cannot leak at the electric interface part, and ensures the excellent explosion-proof performance of the motor ball valve.
(3) The valve seat is provided with the groove to form two seals, so that the sealing performance of the ball valve can be effectively improved.
(4) The invention adopts the disc spring to perform self-adaptive compensation on the sealing part of the ball valve, and can effectively improve the stability of the sealing performance of the ball valve in long-term operation under pressure.
Drawings
FIG. 1 is a schematic structural diagram of a cryogenic ball valve according to the present invention;
FIG. 2 is an enlarged view of a portion of the plastic seal of the present invention;
FIG. 3 is an enlarged view of a portion of the valve seat seal of the present invention.
Detailed Description
The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the invention.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The invention provides a deep low temperature motor ball valve which realizes the mechanical and electrical integration of a valve product, can realize the automatic control of the on-off of a deep low temperature working medium of a pressurized conveying system, has the characteristics of high reliability, good sealing performance, long service life, automatic control and the like, is used for replacing products such as a manual switch and can meet the requirements of the mechanical and electrical integration control of the pressurized conveying system, unattended rockets and the like.
The invention relates to a deep low temperature motor ball valve, which comprises a motor 1 and a ball valve 2, and the specific structure is shown in figure 1, wherein 1 is the motor, 2 is the ball valve, 101 is an electric plug pin, 103 is a plastic seal, 201 is a first gasket, 202 is a valve rod bushing, 203 is a valve rod, 204 is a gasket, 205 is a disc spring, 206 is a valve seat, 207 is a second gasket, 208 is a stopper, 209 is a shell, 210 is a nozzle, 211 is a ball body, 212 is a first ball replacement hole, 213 is a valve rod replacement hole, and 214 is a second ball conversion hole.
The motor 1 is fixedly connected with the ball valve 2 through a screw, and the motor 1 drives the ball valve 2 to open and close;
the motor 1 comprises an electric pin 101, and the electric pin 101 is connected with the motor and an external control system;
the ball valve 2 comprises a valve stem 203, a valve seat 206, a housing 209, a filler neck 210, a ball 211 and a ball replacement hole 212;
one end of the filler neck 210 is connected with the shell 209 through a screw, and the other end is connected with a pipeline;
the sphere 211 is arranged in the shell 209, a first sphere replacement hole 212 is arranged on the sphere 211, and the first sphere replacement hole 212 is communicated with the inside of the filler neck 210 and the sphere 211; when the working medium is used for blowing gas, gas such as air, water vapor and the like to be discharged firstly enters the sphere 211, and when the ball valve is opened, the gas enters the pipeline from the interior of the sphere;
one end of the valve rod 203 is arranged in the ball body 211, the other end of the valve rod is connected with the motor 1, and the motor 1 drives the ball body to rotate through the valve rod to realize the opening and closing of the ball valve;
the valve seat 206 is disposed between the filler neck 210 and the ball 211, and compresses the ball 211 to form a seal. The valve seat 206 is made of non-metal material, and the ball 211 is tightly adhered to the valve seat 206 to form two seals under the action of the pressure of the working medium, so that the sealing performance of the ball valve can be effectively improved,
further, the number of the ball replacement holes 212 is not less than 1.
Further, the ball valve 2 further includes a second ball replacement hole 214, the second ball replacement hole 214 is disposed on the ball 211 and communicates with the housing 209 and the inside of the ball 211, when a working medium is used for blowing gas, gas such as air, water vapor and the like to be discharged firstly enters the inside of the ball 211 and enters a gap between the housing 209 and the ball 211, and when the ball valve is opened, the gas enters a pipeline from the inside of the ball;
further, the ball valve 2 further comprises a valve rod replacement hole 213, the valve rod replacement hole 213 is formed in the valve rod 203, is coaxial with the valve rod 203, and communicates the motor 1 with the interior of the ball body 211. In order to ensure that impurities such as humid air and the like do not influence the normal work of the valve, the inner cavity of the ball valve and the inner cavity of the deep low-temperature motor are blown and replaced through the ball replacing hole and the valve rod replacing hole on the ball valve, so that the spaces are filled with working media and do not contain water vapor, and the motor can be effectively prevented from being locked due to icing.
Further, a valve rod bushing 202 is further included, the valve rod 203 is in clearance fit with the valve rod bushing 202, and the valve rod bushing 202 protects the valve rod 203 and does not prevent the valve rod 203 from rotating.
Further, the valve seat 206 is provided with a groove, and is pressed against the ball 211 to form two seals. As shown in fig. 3. Even if one seal fails, the other seal can still ensure an effective seal.
Further, the ball valve 2 further comprises a disc spring 205, and the disc spring 205 is arranged between the filler neck 210 and the valve seat 206 to realize dynamic force compensation. The disc spring 205 extrudes the non-metal valve seat 206 all the time, and can play a role in force compensation, so that the valve seat 206 is attached to the ball body 211 for a long time, and the stability of the sealing performance of the ball valve is effectively improved.
Further, the motor 1 further comprises a plastic seal 103, and the plastic seal 103 is located outside the electrical contact pin 101 to ensure that the working medium does not leak. As shown in figure 2, the electric interface is the part of the deep low temperature motor ball valve connected with the external power supply, the part adopts the glue filling mode to ensure that the low temperature working medium can not leak at the electric interface, and the hydrogen or oxygen and other flammable and explosive gases are effectively sealed in the ball valve inner cavity and the deep low temperature motor inner cavity, thereby ensuring the excellent explosion-proof performance of the motor ball valve.
Further, the ball valve 2 further comprises a second gasket 207, and the second gasket 207 is used for sealing between the filler neck 210 and the housing 209, so that the sealing and explosion-proof functions are realized. The second pad 207 is an aluminum pad.
Further, the electric motor further comprises a first gasket 201, and the electric motor 1 and the ball valve 2 are sealed through the first gasket 201. The first gasket 201 is an aluminum gasket.
Further, the ball valve 2 further includes a stopper 208, and the stopper 208 is disposed between the valve seat 206 and the housing 209 to ensure that the valve seat 206 is stably sealed.
The motor 1 receives a digital instruction sent by a control system through a bus interface chip, the state shown in fig. 1 is taken as an initial state, and when the motor 1 drives the valve rod 203 to rotate (clockwise and anticlockwise can be both) by 90 degrees, the ball valve is kept open and the opening position of the ball valve is fed back through a rotary transformer on the motor 1; when the motor 1 drives the valve rod 203 to rotate reversely by 90 degrees, the ball valve is kept closed and the closed position is fed back through the rotary transformer.
Further, the diameters of the first ball replacement hole 212, the second ball replacement hole 214, and the stem replacement hole 213 are 2 to 4 mm.
Furthermore, a V-shaped gap is formed between the two seals and the sphere 211, and the distance from the bottom of the V-shaped gap to the spherical surface is 0-0.5 mm.
Example 1
It has first ball replacement hole, second ball replacement hole and valve rod replacement hole to open on the spheroid 211, and ball replacement hole aperture is 2mm, realizes ball valve 2's function of preventing frostbite.
In order to ensure that impurities such as humid air and the like do not exist in the valve to influence the normal work of the valve, working medium with certain pressure enters from a pipe orifice 210 on the left side of the ball valve, the ball valve is controlled to be continuously opened and closed for 10 times, the working medium passes through a first ball replacement hole on the ball valve, a second ball replacement hole and a valve rod replacement hole blow off and replace an inner cavity of the ball valve and an inner cavity of the deep low-temperature motor, 5 minutes is spent, the spaces are full of the working medium, no water vapor exists, and the motor can be effectively prevented from being blocked due to icing.
The invention has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (14)
1. A deep low temperature motor ball valve is characterized by comprising a motor (1) and a ball valve (2);
the motor (1) is fixedly connected with the ball valve (2), and the motor (1) drives the ball valve (2) to open and close;
the motor (1) comprises an electric contact pin (101), and the motor (1) is connected with an external control system through the electric contact pin (101);
the ball valve (2) comprises a valve rod (203), a valve seat (206), a shell (209), a filler neck (210), a ball body (211) and a ball replacement hole (212);
one end of the filler neck (210) is connected with the shell (209), and the other end is connected with an external pipeline;
the ball body (211) is arranged in the shell (209), a first ball replacement hole (212) is formed in the ball body (211), and the first ball replacement hole (212) is communicated with the inside of the filler neck (210) and the ball body (211);
one end of the valve rod (203) is installed in the ball body (211), the other end of the valve rod is connected with the motor (1), and the motor (1) drives the ball body to rotate through the valve rod to realize the opening and closing of the ball valve;
the valve seat (206) is arranged between the filler neck (210) and the ball body (211), and the ball body (211) is pressed to form sealing.
2. The cryogenic motor ball valve as claimed in claim 1, wherein the number of the first ball replacement holes (212) is more than or equal to 1.
3. The cryogenic motor ball valve according to claim 1, wherein the ball valve (2) further comprises a second ball replacement hole (214), and the second ball replacement hole (214) is formed in the ball body (211) and communicates the housing (209) with the interior of the ball body (211).
4. The cryogenic motor ball valve according to claim 1, wherein the ball valve (2) further comprises a valve rod replacement hole (213), the valve rod replacement hole (213) is arranged inside the valve rod (203) and is coaxial with the valve rod (203) to communicate the motor (1) with the inside of the ball body (211).
5. The cryogenic motor ball valve of claim 1, further comprising a valve stem bushing (202), wherein the valve stem (203) is in clearance fit with the valve stem bushing (202), and wherein the valve stem bushing (202) protects the valve stem (203) and does not prevent the valve stem (203) from rotating.
6. A cryogenic motor ball valve according to claim 1, wherein the valve seat (206) is provided with a groove to form two seals with the ball (211).
7. A cryogenic motor ball valve according to claim 1, wherein the ball valve (2) further comprises a disc spring (205), and the disc spring (205) is arranged between the filler neck (210) and the valve seat (206) to realize dynamic force compensation.
8. A cryogenic motor ball valve according to claim 1, characterized in that the motor (1) further comprises a plastic seal (103), and the plastic seal (103) is located outside the electrical contact pin (101) to ensure that the working medium does not leak.
9. The deep cryogenic motor ball valve according to claim 1, wherein the ball valve (2) further comprises a second gasket (207), and the connection nozzle (210) and the housing (209) are sealed by the second gasket (207) to realize sealing and explosion-proof functions.
10. The cryogenic motor ball valve according to claim 1, further comprising a first gasket (201), wherein the motor (1) and the ball valve (2) are sealed by the first gasket (201).
11. The cryogenic motor ball valve according to claim 1, wherein the ball valve (2) further comprises a stopper (208), and the stopper (208) is arranged between the valve seat (206) and the housing (209) to ensure that the valve seat (206) is stably sealed.
12. A cryogenic motor ball valve according to claim 1, wherein the valve seat (206) is made of an elastically deformable non-metallic material.
13. The deep cryogenic motor ball valve according to any one of claims 1 to 4, wherein the first ball replacement hole (212), the second ball replacement hole (214), and the valve stem replacement hole (213) have a diameter of 2 to 4 mm.
14. The deep low temperature motor ball valve according to claim 6, characterized in that a V-shaped gap is formed between the two seals and the ball body (211), and the distance from the bottom of the V-shaped gap to the spherical surface is 0-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367286.9A CN112361017B (en) | 2020-11-27 | 2020-11-27 | Deep low temperature motor ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367286.9A CN112361017B (en) | 2020-11-27 | 2020-11-27 | Deep low temperature motor ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112361017A true CN112361017A (en) | 2021-02-12 |
| CN112361017B CN112361017B (en) | 2022-09-27 |
Family
ID=74535623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011367286.9A Active CN112361017B (en) | 2020-11-27 | 2020-11-27 | Deep low temperature motor ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112361017B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483997A (en) * | 2022-01-21 | 2022-05-13 | 北京航空航天大学 | Low-temperature integrated electric ball valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095873A (en) * | 2008-10-15 | 2010-04-30 | Nittaku:Kk | Antifreezing method and antifreezing valve for water pipe |
| CN204239801U (en) * | 2014-11-25 | 2015-04-01 | 航天长征化学工程股份有限公司 | A kind of cutting ball valve |
| US20180010704A1 (en) * | 2015-06-02 | 2018-01-11 | Ryuji Mitsuoka | Pressure Relief Ball Valve |
| CN207569248U (en) * | 2017-08-24 | 2018-07-03 | 张鑫洋 | A kind of antifreeze water-supply valve |
| CN108506511A (en) * | 2018-03-28 | 2018-09-07 | 成都神智电子科技有限公司 | Realize the sewage draining valve of purging |
| KR20190065894A (en) * | 2017-12-04 | 2019-06-12 | 동아대학교 산학협력단 | Ball Valve for Preventing from Freeze and Burst |
-
2020
- 2020-11-27 CN CN202011367286.9A patent/CN112361017B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095873A (en) * | 2008-10-15 | 2010-04-30 | Nittaku:Kk | Antifreezing method and antifreezing valve for water pipe |
| CN204239801U (en) * | 2014-11-25 | 2015-04-01 | 航天长征化学工程股份有限公司 | A kind of cutting ball valve |
| US20180010704A1 (en) * | 2015-06-02 | 2018-01-11 | Ryuji Mitsuoka | Pressure Relief Ball Valve |
| CN207569248U (en) * | 2017-08-24 | 2018-07-03 | 张鑫洋 | A kind of antifreeze water-supply valve |
| KR20190065894A (en) * | 2017-12-04 | 2019-06-12 | 동아대학교 산학협력단 | Ball Valve for Preventing from Freeze and Burst |
| CN108506511A (en) * | 2018-03-28 | 2018-09-07 | 成都神智电子科技有限公司 | Realize the sewage draining valve of purging |
Non-Patent Citations (1)
| Title |
|---|
| 刘新民: "低温球阀的航天应用与研究", 《低温工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483997A (en) * | 2022-01-21 | 2022-05-13 | 北京航空航天大学 | Low-temperature integrated electric ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112361017B (en) | 2022-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112361017B (en) | Deep low temperature motor ball valve | |
| CN112178209B (en) | Bellows type ultra-low temperature pneumatic stop valve | |
| CN105508627A (en) | High-pressure pipeline manual balance type valve | |
| CN102818043A (en) | Low-temperature ball valve | |
| CN203442165U (en) | Improved structure of valve rod connection portion of vacuum butterfly valve | |
| CN202140576U (en) | Low-temperature stop valve | |
| CN202074070U (en) | Nuclear-power diaphragm valve | |
| CN101349354A (en) | Integral top mounting type ultra-high pressure and ultra low temperature hard seal ball valve | |
| CN201934678U (en) | Low-temperature shutoff valve | |
| CN203532832U (en) | Fixed type fluorine lining ball valve | |
| CN211649126U (en) | Welding ball valve that floats | |
| CN201277338Y (en) | Special dismounting-free valve for sulfur hexafluoride gas | |
| CN220302814U (en) | Low-temperature integrated ball valve | |
| CN107013727B (en) | LNG vehicle low-temperature heat-insulation gas cylinder safety device control valve | |
| CN202215768U (en) | Wedge gate valve | |
| CN105587884A (en) | Low-temperature emergency release valve | |
| CN216923278U (en) | Fireproof ball valve | |
| CN102182835B (en) | Low-temperature stop valve | |
| CN213982167U (en) | Stop valve with pressure release function | |
| CN219119813U (en) | Ultralow-temperature double-eccentric elastic sealing butterfly valve | |
| CN217440831U (en) | LNG forced sealing switch ball valve | |
| CN212338253U (en) | Valve rod explosion-proof ejection ball valve capable of realizing online under-pressure replacement of filler | |
| CN2929377Y (en) | Vacuum butterfly valve | |
| CN210716025U (en) | Pneumatic regulating valve for Y-shaped discharging | |
| CN212509626U (en) | Ultra-low temperature ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |