CN113565993A - Electric control type multi-channel reversing ball valve - Google Patents
Electric control type multi-channel reversing ball valve Download PDFInfo
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- CN113565993A CN113565993A CN202110880964.XA CN202110880964A CN113565993A CN 113565993 A CN113565993 A CN 113565993A CN 202110880964 A CN202110880964 A CN 202110880964A CN 113565993 A CN113565993 A CN 113565993A
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to the technical field of sealing valves, in particular to an electric control type multi-channel reversing ball valve which comprises a pneumatic actuator, an upper valve body, a lower valve body and a lateral electric push rod. According to the electrically-controlled multi-channel reversing ball valve, the upper valve body and the lower valve body are fixedly assembled by the middle isolation device, and an integrated structural design is adopted, so that the multi-channel ball valve is more compact in structure, small in occupied space and low in casting cost; by changing the transmission modes of the structure-adjustable transmission mechanism, the annular bottom adjusting cover and the annular top adjusting cover, the transmission modes of the upper ball body and the lower ball body are quite various, the operation is simple and convenient, and the application range is wider; the sealing performance of the transmission end can be improved, and the upper chamber and the lower chamber are prevented from streaming when rotating; through setting up arc assembly seat at last valve body and lower valve body link, can assemble side direction electric putter through arc assembly seat, can also promote the leakproofness of adjusting the end.
Description
Technical Field
The invention relates to the technical field of sealing valves, in particular to an electric control type multi-channel reversing ball valve.
Background
The ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. The ball valve is most suitable for being used as a switch and a stop valve. Ball valves are a new type of valve that is widely used.
The working principle of the ball valve is to rotate the valve core to open or close the valve. The ball valve switch is light, small in size, reliable in sealing, simple in structure and convenient to maintain, can be made into a large-caliber ball valve, a sealing surface and a spherical surface are always in a closed state, and are not easily eroded by a medium, so that the ball valve switch is widely applied to various industries. The ball valve and the plug valve are the same type of valve, and only the closing part is a sphere which rotates around the center line of the valve body to open and close.
Present multichannel ball valve rotates the different passageways of in-process at the spheroid and can get across gas each other, influences the leakproofness, is mostly split type valve body moreover, and the valve occupation space of the same pressure, bore is very big, and casting cost is also than higher, and the spheroid can only rotate in step in the different valve bodies moreover, and unable independent control leads to later stage detection maintenance troublesome, and control is also very inconvenient.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that exists among the above-mentioned background art, the utility model provides a modified has automatically controlled formula multichannel switching-over ball valve, solve present multichannel ball valve and can communicate gas each other between the different passageways of spheroid rotation in-process, influence the leakproofness, and mostly be split type valve body moreover, the same pressure, the valve occupation space of bore is very big, casting cost is also than higher, and the spheroid can only rotate in step in the different valve bodies moreover, unable independent control, it is troublesome to lead to later stage detection maintenance, control also very inconvenient problem.
The technical scheme adopted by the invention for solving the technical problems is as follows: an electrically controlled multi-channel reversing ball valve comprises a pneumatic actuator, an upper valve body, a lower valve body and a lateral electric push rod, wherein the upper end of the upper valve body is fixedly provided with a top assembly frame for mounting the pneumatic actuator through bolts, the inner wall of an opening at the lower end of the upper valve body and the opening at the upper end of the lower valve body are provided with assembly sinking grooves with built-in middle isolation devices, the inner part of the upper valve body is movably assembled with an upper ball body with built-in four channels, the inner part of the lower valve body is movably assembled with a lower ball body with built-in four channels, the lower end of the upper ball body is fixedly connected with an annular bottom adjustment cover, the upper end of the lower ball body is positioned at the inner side of the annular bottom adjustment cover and is provided with an annular top adjustment cover with an upward bulge integrated structure, a structure-adjustable transmission mechanism is arranged in the middle isolation device, and the outer side of the connecting end of the upper valve body and the lower valve body is provided with an arc assembly seat with an integrated structure which bulges outwards, and a lateral mounting seat for assembling a lateral electric push rod is fixed on the outer side surface of the arc-shaped assembling seat through a bolt.
The upper surface of the middle isolation device is provided with an annular upper assembly opening matched with the annular bottom adjusting cover, the lower surface of the middle isolation device is provided with an annular lower assembly opening matched with the annular top adjusting cover, the lower end opening position of the annular upper assembly opening of the middle isolation device is provided with a first guide frame protruding downwards, and the upper end opening position of the annular lower assembly opening of the middle isolation device is provided with a second guide frame protruding upwards.
The structure-adjustable transmission mechanism comprises a turnover adjusting frame movably arranged in the middle isolation device through a main assembly shaft lever, a control connecting rod movably connected to the outer side of the turnover adjusting frame through a top connecting rod, and a first transmission gear, a second transmission gear and a third transmission gear which are movably arranged in the turnover adjusting frame through an inner assembly shaft.
The annular top-set adjusting cover is characterized in that a first annular tooth socket matched with the first transmission gear is formed in the outer arc-shaped surface of the annular bottom-set adjusting cover, and a second annular tooth socket matched with the second transmission gear is formed in the outer arc-shaped surface of the annular top-set adjusting cover.
The upper valve body and the lower valve body are symmetrically provided with transverse adjusting grooves used for communicating the arc-shaped assembling seat with the middle isolating device, and the top of the telescopic rod, close to the transverse adjusting groove end, of the lateral electric push rod is coaxially fixed with a lateral telescopic rod connected with the control connecting rod.
The lateral surface of the lateral telescopic rod is positioned inside the arc-shaped assembling seat and fixedly sleeved with a lateral sealing ring.
The upper end of the upper valve body is provided with a top assembling and disassembling port with a built-in top cover, and the lower end of the lower valve body is provided with a bottom assembling and disassembling port with a built-in bottom cover.
The bottom cover is characterized in that a bottom guide shaft which protrudes upwards and is of an integral structure is arranged at the center of the upper surface of the bottom cover, and a bottom guide blind hole matched with the bottom guide shaft is formed in the center of the lower surface of the lower sphere.
And a main transmission shaft rod for driving and connecting the pneumatic actuator and the upper ball body is longitudinally arranged in the top assembly frame and the top cover.
The invention has the beneficial effects that:
(1) according to the electrically-controlled multi-channel reversing ball valve, the upper valve body and the lower valve body are fixedly assembled by the middle isolation device, and an integrated structural design is adopted, so that the multi-channel ball valve is more compact in structure, small in occupied space and low in casting cost;
(2) the structure-adjustable transmission mechanism controlled by the lateral electric push rod is arranged in the middle isolation device, and the angle of the structure-adjustable transmission mechanism is controlled by the extension of the lateral electric push rod, so that the transmission modes of the structure-adjustable transmission mechanism, the annular bottom adjusting cover and the annular top adjusting cover are changed, the transmission modes of the upper ball body and the lower ball body are quite various, the operation is simple and convenient, and the application range is wider;
(3) the upper surface of the middle isolation device is provided with an annular upper assembly port matched with the annular bottom adjusting cover, and the lower surface of the middle isolation device is provided with an annular lower assembly port matched with the annular top adjusting cover;
(4) through setting up arc assembly seat at last valve body and lower valve body link, can assemble side direction electric putter through arc assembly seat, can also promote the leakproofness of adjusting the end.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the middle spacer of the present invention.
FIG. 3 is a schematic structural diagram of the structurally adjustable transmission mechanism of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The electrically controlled multi-channel reversing ball valve shown in fig. 1, 2 and 3 comprises a pneumatic actuator 1, an upper valve body 2, a lower valve body 3 and a lateral electric push rod 4, wherein the pneumatic actuator 1 and the lateral electric push rod 4 are powered by an external power supply, a top assembly frame for mounting the pneumatic actuator 1 is fixed at the upper end of the upper valve body 2 through bolts, an assembly lower sink groove 6 with a built-in middle isolation device 5 is formed in the opening inner wall at the lower end of the upper valve body 2 and the opening position at the upper end of the lower valve body 3, an upper ball body 7 with four built-in channels is movably assembled in the upper valve body 2, a lower ball body 8 with four built-in channels is movably assembled in the lower valve body 3, an annular bottom adjusting cover 9 is fixedly connected at the lower end of the upper ball body 2, an integrated annular top adjusting cover 10 protruding upwards is arranged at the inner side of the annular bottom adjusting cover 9 at the upper end of the lower ball body 8, and a structure-adjustable transmission mechanism is arranged in the middle isolation device 5, go up the valve body 2 and have outside the 3 link of lower valve body outside bellied integrative structure arc assembly seat 11, be fixed with the side direction mount pad 12 that is used for assembling side direction electric putter 4 through the bolt on the 11 lateral surfaces of arc assembly seat.
Further, for matching assembly and guiding, an annular upper assembly opening 13 matched with the annular bottom adjusting cover 9 is formed in the upper surface of the middle isolating device 5, an annular lower assembly opening 14 matched with the annular top adjusting cover 10 is formed in the lower surface of the middle isolating device 5, a first guide frame 15 protruding downwards is arranged at the opening position of the lower end of the annular upper assembly opening 13 on the inner top surface of the middle isolating device 5, and a second guide frame 16 protruding upwards is arranged at the opening position of the upper end of the annular lower assembly opening 14 on the inner bottom surface of the middle isolating device 5.
Further, in order to cooperate with adjustment and transmission, the transmission mechanism with adjustable structure comprises a turnover adjusting frame 17 movably mounted inside the middle isolation device 5 through a main assembly shaft rod, a control connecting rod 18 movably connected to the outer side of the turnover adjusting frame 17 through a top connecting rod, a first transmission gear 19, a second transmission gear 20 and a third transmission gear 21 movably mounted in the turnover adjusting frame 17 through an inner assembly shaft.
Wherein the first transmission gear 19 and the second transmission gear 20 are meshed with each other for transmission. A first transfer gear 19 and a second transfer gear 20 are located on one side of the main assembly shaft and a third transfer gear 21 is located on the other side of the main assembly shaft. The first transmission gear 19 and the second transmission gear 20 are meshed with each other.
Furthermore, in order to match with the meshing transmission, a first annular tooth socket 22 matched with the first transmission gear 19 is formed on the outer arc-shaped surface of the annular bottom adjusting cover 9, and a second annular tooth socket 23 matched with the second transmission gear 20 is formed on the outer arc-shaped surface of the annular top adjusting cover 10.
Example (b): when the lateral electric push rod 4 extends into the ball valve, the first transmission gear 19 and the second transmission gear 20 are driven to turn over towards the positions of the annular bottom adjusting cover 9 and the annular top adjusting cover 10, finally the first transmission gear 19 is meshed with the first annular tooth space 22, the second transmission gear 20 is meshed with the second annular tooth space 23, and the directions of the upper ball body 7 and the lower ball body 8 are opposite;
when the lateral electric push rod 4 extends out of the ball valve and the third transmission gear 21 is simultaneously meshed with the first annular tooth groove 22 and the second annular tooth groove 23, the upper ball body 7 and the lower ball body 8 rotate in the same direction;
when the side electric push rod 4 slightly extends into the ball valve, the first annular tooth groove 22, the second transmission gear 20 and the third transmission gear 21 are in a non-meshed state, and the upper ball body 7 rotates and the lower ball body is static.
Further, in order to match with lateral telescopic adjustment, a transverse adjusting groove 24 for communicating the arc-shaped assembling seat 11 with the middle isolating device 5 is symmetrically formed in the connecting surface of the upper valve body 2 and the lower valve body 3, and a lateral telescopic rod 25 connected with the control connecting rod 18 is coaxially fixed at the top of the telescopic rod of the lateral electric push rod 4 close to the end of the transverse adjusting groove 24.
Further, in order to improve the lateral sealing performance after adjustment, a lateral sealing ring 26 is sleeved and fixed on the outer side surface of the lateral telescopic rod 25 inside the arc-shaped assembling seat 11. The lateral sealing ring can also be replaced by a filler.
Furthermore, in order to facilitate the assembly and disassembly and reduce the early production and later maintenance costs, the upper end of the upper valve body 2 is provided with a top assembly and disassembly port with a built-in top cover 28, and the lower end of the lower valve body 3 is provided with a bottom assembly and disassembly port with a built-in bottom cover 29.
Further, in order to improve the bottom transmission stability, the center position of the upper surface of the bottom cover 29 is provided with an upward convex integral bottom guide shaft 30, and the center position of the lower surface of the lower ball 8 is provided with a bottom guide blind hole 31 matched with the bottom guide shaft 30.
Further, in order to cooperate with the top drive, a main transmission shaft 32 for drivingly connecting the pneumatic actuator 1 and the upper ball 7 is longitudinally provided inside the top assembly frame and the top cover 28.
According to the electrically-controlled multi-channel reversing ball valve, the upper valve body 2 and the lower valve body 3 are fixedly assembled by the middle isolation device 5, and an integrated structural design is adopted, so that the multi-channel ball valve is more compact in structure, small in occupied space and lower in casting cost; the structure-adjustable transmission mechanism controlled by the lateral electric push rod 4 is arranged in the middle isolation device 5, and the angle of the structure-adjustable transmission mechanism is controlled by the extension and contraction of the lateral electric push rod 4, so that the transmission modes of the structure-adjustable transmission mechanism, the annular bottom adjusting cover 9 and the annular top adjusting cover 10 are changed, the transmission modes of the upper ball body 7 and the lower ball body 8 are quite various, the operation is simple and convenient, and the application range is wider; an annular upper assembling port 13 matched with the annular bottom adjusting cover 9 is formed in the upper surface of the middle isolating device 5, an annular lower assembling port 14 matched with the annular top adjusting cover 10 is formed in the lower surface of the middle isolating device 5, and through an annular assembling mode, the rotating and matching stability can be improved, the sealing performance of a transmission end can also be improved, and the upper chamber and the lower chamber are prevented from streaming when rotating; through setting up arc assembly seat 11 at last valve body 2 and 3 links of lower valve body, can assemble side direction electric putter 4 through arc assembly seat 11, can also promote the leakproofness of adjusting the end.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a have automatically controlled formula multichannel switching-over ball valve, includes pneumatic actuator (1), goes up valve body (2), lower valve body (3) and side direction electric putter (4), characterized by: the upper end of the upper valve body (2) is fixedly provided with a top assembly frame used for installing a pneumatic actuator (1) through bolts, the opening inner wall of the lower end of the upper valve body (2) and the opening position of the upper end of the lower valve body (3) are provided with an assembly sinking groove (6) internally provided with a middle isolating device (5), the upper valve body (2) is movably assembled with an upper ball body (7) internally provided with four channels, the lower valve body (3) is movably assembled with a lower ball body (8) internally provided with four channels, the lower end of the upper ball body (7) is fixedly connected with an annular bottom adjusting cover (9), the upper end of the lower ball body (8) is positioned at the inner side of the annular bottom adjusting cover (9) and is provided with an annular top adjusting cover (10) with an upward convex integrated structure, a transmission mechanism with an adjustable structure is arranged inside the middle isolating device (5), and the outer side of the connecting end of the upper valve body (2) and the lower valve body (3) is provided with an arc assembly seat (11) with an outward convex integrated structure And a lateral mounting seat (12) for mounting a lateral electric push rod (4) is fixed on the outer side surface of the arc-shaped mounting seat (11) through a bolt.
2. The electrically controlled multi-channel reversing ball valve as claimed in claim 1, wherein: middle part isolating device (5) upper surface seted up with annular end put adjusting cap (9) matched with annular overhead put assembly opening (13) on the annular, middle part isolating device (5) lower surface seted up with annular overhead adjusting cap matched with annular overhead put assembly opening (14) under, middle part isolating device (5) in the top surface be located annular overhead assembly opening (13) lower extreme open position have bellied first guide frame (15) downwards, middle part isolating device (5) in the bottom surface be located annular under put assembly opening (14) upper end open position have bellied second guide frame (16) upwards.
3. The electrically controlled multi-channel reversing ball valve as claimed in claim 1, wherein: the structure-adjustable transmission mechanism comprises a turnover adjusting frame (17) movably arranged in the middle isolation device (5) through a main assembly shaft lever, a control connecting rod (18) movably connected to the outer side of the turnover adjusting frame (17) through a top connecting rod, a first transmission gear (19), a second transmission gear (20) and a third transmission gear (21) movably arranged in the turnover adjusting frame (17) through an inner assembly shaft.
4. The electrically controlled multi-channel reversing ball valve as claimed in claim 3, wherein: the outer arc-shaped surface of the annular bottom adjusting cover (9) is provided with a first annular tooth groove (22) matched with the first transmission gear (19), and the outer arc-shaped surface of the annular top adjusting cover (10) is provided with a second annular tooth groove (23) matched with the second transmission gear (20).
5. The electrically controlled multi-channel reversing ball valve as claimed in claim 3, wherein: go up valve body (2) and valve body (3) connect the face on the symmetry offer be used for communicating arc assembly seat (11) and middle part isolating device (5) horizontal adjustment groove (24), the telescopic link top coaxial fixation that side direction electric putter (4) are close to horizontal adjustment groove (24) end has side direction telescopic link (25) that are connected with control connecting rod (18).
6. The electrically controlled multi-channel reversing ball valve as claimed in claim 5, wherein: the lateral surface of the lateral telescopic rod (25) is positioned inside the arc-shaped assembling seat (11) and is fixedly sleeved with a lateral sealing ring (26).
7. The electrically controlled multi-channel reversing ball valve as claimed in claim 3, wherein: the upper end of the upper valve body (2) is provided with a top assembling and disassembling port with a built-in top cover (28), and the lower end of the lower valve body (3) is provided with a bottom assembling and disassembling port with a built-in bottom cover (29).
8. The electrically controlled multi-channel reversing ball valve as claimed in claim 7, wherein: the center of the upper surface of the bottom cover (29) is provided with an integral bottom guide shaft (30) which protrudes upwards, and the center of the lower surface of the lower ball body (8) is provided with a bottom guide blind hole (31) which is matched with the bottom guide shaft (30).
9. The electrically controlled multi-channel ball reversing valve as claimed in claim 8, wherein: the top assembly frame and the top cover (27) are internally and longitudinally provided with a main transmission shaft rod (32) for driving and connecting the pneumatic actuator (1) and the upper ball body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880964.XA CN113565993B (en) | 2021-08-02 | 2021-08-02 | Electric control type multi-channel reversing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880964.XA CN113565993B (en) | 2021-08-02 | 2021-08-02 | Electric control type multi-channel reversing ball valve |
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| CN113565993A true CN113565993A (en) | 2021-10-29 |
| CN113565993B CN113565993B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110880964.XA Active CN113565993B (en) | 2021-08-02 | 2021-08-02 | Electric control type multi-channel reversing ball valve |
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| US4085766A (en) * | 1976-04-15 | 1978-04-25 | Bourns, Inc. | Adjustable gas mixing valve |
| CN103672031A (en) * | 2013-12-09 | 2014-03-26 | 四川航天电液控制有限公司 | Hydraulic control three-way ball valve |
| CN203743507U (en) * | 2014-02-25 | 2014-07-30 | 宁波埃美柯铜阀门有限公司 | Four-way filter ball valve |
| CN104455558A (en) * | 2013-09-22 | 2015-03-25 | 天津市金佳同达科技有限公司 | Multi-channel intelligent spherical valve |
| CN106151145A (en) * | 2016-08-27 | 2016-11-23 | 中国煤炭科工集团太原研究院有限公司 | The pressure pilot operated directional control valve in a kind of water route |
| KR101718766B1 (en) * | 2016-07-22 | 2017-03-22 | 에쓰온(주) | 2-way valve for matrix valve system |
| CN108916424A (en) * | 2018-09-28 | 2018-11-30 | 哈尔滨玄智科技有限公司 | A kind of natural gas line valve |
| CN109404567A (en) * | 2017-08-17 | 2019-03-01 | 盾安环境技术有限公司 | A kind of three-way magnetic valve |
| WO2019206510A1 (en) * | 2018-04-23 | 2019-10-31 | Belimo Holding Ag | 6-way valve and method for producing a 6-way valve |
| CN111102375A (en) * | 2019-12-18 | 2020-05-05 | 中国长江动力集团有限公司 | Intermediate regulating mechanism for full-circle steam admission |
| CN211145459U (en) * | 2019-12-11 | 2020-07-31 | 上海申吉仪表有限公司 | Novel duplex three-way valve group |
| CN113154075A (en) * | 2021-03-26 | 2021-07-23 | 乔健 | Aperture-adjustable self-cleaning ball valve and use method thereof |
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2021
- 2021-08-02 CN CN202110880964.XA patent/CN113565993B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085766A (en) * | 1976-04-15 | 1978-04-25 | Bourns, Inc. | Adjustable gas mixing valve |
| CN104455558A (en) * | 2013-09-22 | 2015-03-25 | 天津市金佳同达科技有限公司 | Multi-channel intelligent spherical valve |
| CN103672031A (en) * | 2013-12-09 | 2014-03-26 | 四川航天电液控制有限公司 | Hydraulic control three-way ball valve |
| CN203743507U (en) * | 2014-02-25 | 2014-07-30 | 宁波埃美柯铜阀门有限公司 | Four-way filter ball valve |
| KR101718766B1 (en) * | 2016-07-22 | 2017-03-22 | 에쓰온(주) | 2-way valve for matrix valve system |
| CN106151145A (en) * | 2016-08-27 | 2016-11-23 | 中国煤炭科工集团太原研究院有限公司 | The pressure pilot operated directional control valve in a kind of water route |
| CN109404567A (en) * | 2017-08-17 | 2019-03-01 | 盾安环境技术有限公司 | A kind of three-way magnetic valve |
| WO2019206510A1 (en) * | 2018-04-23 | 2019-10-31 | Belimo Holding Ag | 6-way valve and method for producing a 6-way valve |
| CN108916424A (en) * | 2018-09-28 | 2018-11-30 | 哈尔滨玄智科技有限公司 | A kind of natural gas line valve |
| CN211145459U (en) * | 2019-12-11 | 2020-07-31 | 上海申吉仪表有限公司 | Novel duplex three-way valve group |
| CN111102375A (en) * | 2019-12-18 | 2020-05-05 | 中国长江动力集团有限公司 | Intermediate regulating mechanism for full-circle steam admission |
| CN113154075A (en) * | 2021-03-26 | 2021-07-23 | 乔健 | Aperture-adjustable self-cleaning ball valve and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN113565993B (en) | 2023-04-07 |
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