CN110513558B - Automatic switching device for gas interruption of gas transmission pipeline - Google Patents
Automatic switching device for gas interruption of gas transmission pipeline Download PDFInfo
- Publication number
- CN110513558B CN110513558B CN201810952580.2A CN201810952580A CN110513558B CN 110513558 B CN110513558 B CN 110513558B CN 201810952580 A CN201810952580 A CN 201810952580A CN 110513558 B CN110513558 B CN 110513558B
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- China
- Prior art keywords
- gas
- pipeline
- hole
- gas cylinder
- control box
- 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.)
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Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 22
- 230000006698 induction Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 87
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K11/22—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 with an actuating member for each valve, e.g. interconnected to form multiple-way 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
- 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
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses an automatic switching device for gas interruption of a gas transmission pipeline, which comprises a main pipeline, wherein a U-shaped side pipeline is movably arranged on one side of the main pipeline, interfaces are fixedly arranged at two ends of the U-shaped side pipeline, the interfaces are movably connected with the main pipeline, a main pipeline hole is formed in one end of the main pipeline, a pressure gauge is fixedly arranged on one side of the main pipeline, a triangular joint is movably arranged on the main pipeline, a control box is fixedly arranged on the top side of the triangular joint, the control box is of a hollow structure, a gas cylinder pipeline is movably arranged on one side of the triangular joint, which is far away from the U-shaped side pipeline, and a gas cylinder is movably arranged on one side of the gas cylinder pipeline, which is far away from the control box. According to the automatic switching device for the gas interruption of the gas transmission pipeline, when the main pipeline is insufficient in gas supply, the main pipeline is automatically closed in an induction mode, and meanwhile, the gas cylinder pipeline with one side ready is opened for gas supply, so that the problem that the production is stopped due to the gas interruption of the traditional gas transmission pipeline is avoided, and the automatic switching device is simple in structure and convenient to use.
Description
Technical Field
The invention relates to the technical field of gas transmission pipes, in particular to an automatic switching device for gas interruption of a gas transmission pipe.
Background
The gas pipeline is mainly used for conveying natural gas, liquefied petroleum gas and artificial gas. In long distance transportation, gas transmission pipeline is specially used for conveying natural gas medium, in town, gas transmission pipeline is used for conveying natural gas, liquefied petroleum gas, artificial gas and other mediums, gas transmission pipeline is also used for gas conveying pipeline in normal production of enterprises, normal gas transmission of gas transmission pipeline is ensured in production of enterprises to ensure normal operation of production, but when insufficient gas transmission occurs, normal gas transmission production which cannot be ensured by a traditional gas transmission pipeline is caused, serious consequences and low production efficiency are caused for production, and production requirements cannot be met, so that a novel gas transmission pipeline gas-cutting automatic switching device is required to meet production requirements.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an automatic switching device for gas interruption of a gas transmission pipeline.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an automatic switching device of gas-supply pipeline outage, includes the trunk line, one side movable mounting of trunk line has U type side pipeline, and the equal fixed mounting in both ends of U type side pipeline has the interface, and interface and trunk line swing joint, the trunk line hole has been seted up to the one end of trunk line, fixed mounting has the manometer on one side of trunk line, movable mounting has the triangular joint on the trunk line, the upside fixed mounting of triangular joint has the control box, and the control box is hollow structure, and the triangular joint keeps away from one side movable mounting of U type side pipeline and have the gas cylinder pipeline, one side movable mounting that the gas cylinder pipeline kept away from the control box has the gas cylinder, fixed mounting has first hammer gear on one side inner wall of control box, the meshing has the second hammer gear on the output shaft of first rotary motor, and sealing plate and trunk line looks adaptation, threaded hole has been seted up to the top side of sealing plate, and threaded hole swing joint has first pivot, the top of first cylinder pipeline extends to the control box, and the first cylinder pipeline is kept away from one side movable mounting of control box has the gas cylinder, and the first rotary shaft of first rotary motor has the first rotary valve seat, the first rotary valve seat is close to two rotary valve seat, two fixed connection with the first rotary valve seat, two rotary valve seat, the first side of the first rotary valve is equipped with the first rotary valve seat.
Preferably, the inner walls of the two sides of the triangular joint are provided with sliding grooves, the two sides of the sealing plate are fixedly provided with sliding blocks, and the sliding blocks are in sliding connection with the sliding grooves.
Preferably, the fixing block is provided with external threads, the threaded hole is provided with internal threads, and the external threads on the fixing block are in threaded connection with the internal threads in the threaded hole.
Preferably, a gas through hole is formed in one side of the sphere, and the gas through hole is matched with a hole of the gas cylinder.
Preferably, a mounting hole is formed between the interface and the control box, and a first control valve is rotatably arranged in the mounting hole.
Preferably, the top side of spheroid fixed mounting has the dwang, and the top of dwang extends outside the gas cylinder pipeline, and rotates and be connected with the second control valve.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the main pipeline, the pressure gauge, the control box, the main pipeline hole, the first rotating motor, the first hammer-shaped gear, the second hammer-shaped gear, the first rotating shaft, the triangular joint, the sealing plate, the threaded hole, the fixed block, the sliding chute and the sliding block are matched for use, and the pressure gauge is of the type: MD-S210 can achieve the effect of actively closing the main pipeline when the gas supply pipe is insufficient in gas supply, and can achieve the effect of opening the gas cylinder pipeline to supply gas when the main pipeline is closed through the cooperation of the gas cylinder pipeline, the gas cylinder, the second control valve, the rotating rod, the gas cylinder pipe hole, the sealing seat, the second rotating motor, the second rotating shaft, the ball body and the gas through hole, and can achieve the effect of facilitating the overhaul of the triangular joint through the cooperation of the U-shaped side pipeline, the interface and the first control valve;
according to the automatic switching device for the gas interruption of the gas transmission pipeline, when the main pipeline is insufficient in gas supply, the main pipeline is automatically closed in an induction mode, and meanwhile, the gas cylinder pipeline with one side ready is opened for gas supply, so that the problem that the production is stopped due to the gas interruption of the traditional gas transmission pipeline is avoided, and the automatic switching device is simple in structure and convenient to use.
Drawings
FIG. 1 is a top view of a gas line automatic switching device for gas interruption according to the present invention;
FIG. 2 is a side view of a structure of an automatic switching device for gas interruption of a gas transmission pipeline according to the present invention;
FIG. 3 is a schematic diagram of the structure of the portion B in FIG. 2 of the automatic switching device for gas interruption of a gas transmission pipeline according to the present invention;
Fig. 4 is a schematic structural diagram of a portion a in fig. 1 of an automatic switching device for gas interruption of a gas transmission pipeline according to the present invention.
In the figure: the device comprises a main pipeline 1, a side pipeline 2U, a port 3, a pressure gauge 4, a control box 5, a gas cylinder pipeline 6, a gas cylinder 7, a first control valve 8, a main pipeline hole 9, a second control valve 10, a first rotating motor 11, a first hammer gear 12, a second hammer gear 13, a first rotating shaft 14, a triangular joint 15, a rotating rod 16, a sealing plate 17, a threaded hole 18, a fixed block 19, a sliding groove 20, a sliding block 21, a gas cylinder pipe hole 22, a sealing seat 23, a second rotating motor 24, a second rotating shaft 25, a ball body 26 and a gas through hole 27.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to figures 1-4, an automatic switching device for gas interruption of a gas transmission pipeline comprises a main pipeline 1, wherein a U-shaped side pipeline 2 is movably arranged on one side of the main pipeline 1, two ends of the U-shaped side pipeline 2 are fixedly provided with interfaces 3, the interfaces 3 are movably connected with the main pipeline 1, one end of the main pipeline 1 is provided with a main pipeline hole 9, one side of the main pipeline 1 is fixedly provided with a pressure gauge 4, a triangular joint 15 is movably arranged on the main pipeline 1, the top side of the triangular joint 15 is fixedly provided with a control box 5, the control box 5 is of a hollow structure, one side of the triangular joint 15, far from the U-shaped side pipeline 2, is movably provided with a gas cylinder pipeline 6, one side, far from the control box 5, of the gas cylinder pipeline 6 is movably provided with a gas cylinder 7, one side inner wall of the control box 5 is fixedly provided with a first rotary motor 11, an output shaft of the first rotary motor 11 is fixedly connected with a first hammer gear 12, the first hammer gear 12 is meshed with the second hammer gear 13, the inside of the triangular joint 15 is movably connected with a sealing plate 17, the sealing plate 17 is matched with the main pipeline hole 9, the top side of the sealing plate 17 is provided with a threaded hole 18, the inside of the threaded hole 18 is movably connected with a first rotating shaft, the top end of the first rotating shaft 14 extends into the control box 5 and is fixedly connected with the bottom end of the second hammer gear 13, the bottom end of the first rotating shaft 14 is fixedly connected with a fixed block 19, the fixed block 19 is in threaded connection with the threaded hole 18, one side of the gas cylinder pipeline 6 is provided with a gas cylinder pipe hole 22, two sealing seats 23 are movably connected in the gas cylinder pipe hole 22, one side, which is close to each other, of the two sealing seats 23 is rotatably provided with a same ball 26, the gas cylinder pipeline 6 is fixedly provided with a second rotating motor 24, the output shaft of the second rotating motor 24 is rotatably connected with a second rotating shaft 25, the second rotating shaft 25 is fixedly connected with the ball 26, the main pipeline 1, the pressure gauge 4, the control box 5, the main pipeline hole 9, the first rotating motor 11, the first hammer gear 12, the second hammer gear 13, the first rotating shaft 14, the triangular joint 15, the sealing plate 17, the threaded hole 18, the fixed block 19, the sliding chute 20 and the sliding block 21 are matched for use, so that the effect of actively closing the main pipeline 1 when the gas supply pipe is insufficient can be achieved, and the effect of conveniently overhauling the triangular joint 15 can be achieved by matching the gas cylinder pipeline 6, the gas cylinder 7, the second control valve 10, the rotating rod 16, the gas cylinder pipe hole 22, the sealing seat 23, the second rotating motor 24, the second rotating shaft 25, the ball 26 and the gas through hole 27; according to the automatic switching device for the gas interruption of the gas transmission pipeline, when the main pipeline 1 is insufficient in gas supply, the main pipeline is automatically closed in an induction mode, and meanwhile, the gas cylinder pipeline 6 with one side ready is opened for gas supply, so that the problem that the production is stopped due to the gas interruption of the traditional gas transmission pipeline is avoided, and the automatic switching device is simple in structure and convenient to use.
The two side inner walls of the triangular joint 15 are provided with the sliding grooves 20, the two sides of the sealing plate 17 are fixedly provided with the sliding blocks 21, the sliding blocks 21 are in sliding connection with the sliding grooves 20, the fixed block 19 is provided with external threads, the threaded hole 18 is internally provided with internal threads, the external threads on the fixed block 19 are in threaded connection with the internal threads in the threaded hole 18, one side of the ball 26 is provided with the gas through hole 27, the gas through hole 27 is matched with the gas cylinder pipe hole 22, a mounting hole is formed between the interface 3 and the control box 5, the first control valve 8 is rotatably arranged in the mounting hole, the top side of the ball 26 is fixedly provided with the rotating rod 16, the top end of the rotating rod 16 extends out of the gas cylinder pipe 6, the second control valve 10 is rotatably connected with the ball, and the air supply pipe 6, and the air pipe joint 2, the air supply pipe 2, the air pipe joint 2, the air pipe 25 and the air pipe 25 can be conveniently opened by the aid of the first hammer gear 13, the first rotating shaft 14, the triangular joint 15, the sealing plate 17, the threaded hole 18, the fixed block 19, the sliding grooves 20 and the sliding blocks 21 are matched with each other, and the air pipe 1 can be actively closed, and the air pipe 6 can be opened through the rotating seat 6, the second control valve 2, the air pipe 2 and the second valve 25 and the air pipe 2; according to the automatic switching device for the gas interruption of the gas transmission pipeline, when the main pipeline 1 is insufficient in gas supply, the main pipeline is automatically closed in an induction mode, and meanwhile, the gas cylinder pipeline 6 with one side ready is opened for gas supply, so that the problem that the production is stopped due to the gas interruption of the traditional gas transmission pipeline is avoided, and the automatic switching device is simple in structure and convenient to use.
Working principle: when the main pipeline hole 9 in the main pipeline 1 is insufficient in air supply, the pressure gauge 4 is used for rapidly sensing, the controller in the control box 5 is used for controlling the first rotary motor 11 and the second rotary motor 24 to operate, the model of the controller is based on a singlechip AT89C51 controller, the first rotary motor 11 operates to drive the first hammer gear 12 to rotate, the first hammer gear 12 rotates to drive the second hammer gear 13 to rotate, the second hammer gear 13 rotates to drive the first rotating shaft 14 to rotate, the first rotating shaft 14 rotates to drive the fixed block 19 to rotate, the fixed block 19 rotates to drive the sealing plate 17 to rotate, the sealing plate 17 rotates to drive the sliding block 21 to slide in the sliding groove 20, the second rotary motor 24 operates to drive the second rotating shaft 25 to rotate until the ball 26 rotates until the air through hole 27 in the ball 26 is matched with the air cylinder hole 22, the air cylinder pipeline 6 is automatically opened when the air is cut off, the first valve 8 is required to control the air supply of the U-shaped pipeline 2, and the air delivery pipe is convenient to overhaul and overhauled 15 when the air delivery valve is required to be opened.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The utility model provides an automatic switching device of gas-supply pipeline outage, includes trunk line (1), its characterized in that, one side movable mounting of trunk line (1) has U type side pipeline (2), and the equal fixed mounting in both ends of U type side pipeline (2) has interface (3), and interface (3) and trunk line (1) swing joint, trunk line hole (9) have been seted up to one end of trunk line (1), fixed mounting has manometer (4) on one side of trunk line (1), and movable mounting has triangular joint (15) on trunk line (1), the top side fixed mounting of triangular joint (15) has control box (5), and control box (5) are hollow structure, and one side movable mounting that triangular joint (15) kept away from U type side pipeline (2) has gas cylinder pipeline (6), one side movable mounting gas cylinder (7) that control box (5) were kept away from to gas cylinder pipeline (6), fixed mounting has first rotating electrical machines (11) on the inner wall of one side of control box (5), fixed connection has first hammer gear (12) on the output shaft of first rotating electrical machines (11), hammer gear (12) have hammer gear (17) and second hammer joint (17) looks seal plate, hammer (17) are connected mutually, the top side of the sealing plate (17) is provided with a threaded hole (18), a first rotating shaft is movably connected in the threaded hole (18), the top end of the first rotating shaft (14) extends into the control box (5) and is fixedly connected with the bottom end of the second hammer-shaped gear (13), the bottom end of the first rotating shaft (14) is fixedly connected with a fixed block (19), the fixed block (19) is in threaded connection with the threaded hole (18), one side of the gas cylinder pipeline (6) is provided with a gas cylinder pipe hole (22), two sealing seats (23) are movably connected in the gas cylinder pipe hole (22), one side, close to each other, of the two sealing seats (23) is rotatably provided with the same ball body (26), the gas cylinder pipeline (6) is fixedly provided with a second rotating motor (24), an output shaft of the second rotating motor (24) is rotationally connected with a second rotating shaft (25), the second rotating shaft (25) is fixedly connected with a sphere (26), sliding grooves (20) are formed in the inner walls of the two sides of the triangular joint (15), sliding blocks (21) are fixedly arranged on the two sides of the sealing plate (17), the sliding blocks (21) are in sliding connection with the sliding grooves (20), the fixing block (19) is provided with external threads, the threaded holes (18) are internally provided with internal threads, the external threads on the fixing block (19) are in threaded connection with the internal threads in the threaded holes (18), the top side of the sphere (26) is fixedly provided with a rotating rod (16), the top end of the rotating rod (16) extends out of the gas cylinder pipeline (6), and a second control valve (10) is rotatably connected.
2. The automatic switching device for gas interruption of a gas transmission pipeline according to claim 1, wherein a gas through hole (27) is formed in one side of the sphere (26), and the gas through hole (27) is matched with the gas cylinder hole (22).
3. The automatic switching device for gas interruption of a gas transmission pipeline according to claim 1, wherein a mounting hole is formed between the interface (3) and the control box (5), and a first control valve (8) is rotatably mounted in the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952580.2A CN110513558B (en) | 2018-08-21 | 2018-08-21 | Automatic switching device for gas interruption of gas transmission pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952580.2A CN110513558B (en) | 2018-08-21 | 2018-08-21 | Automatic switching device for gas interruption of gas transmission pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110513558A CN110513558A (en) | 2019-11-29 |
| CN110513558B true CN110513558B (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810952580.2A Active CN110513558B (en) | 2018-08-21 | 2018-08-21 | Automatic switching device for gas interruption of gas transmission pipeline |
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| Country | Link |
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| CN (1) | CN110513558B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208687200U (en) * | 2018-08-21 | 2019-04-02 | 浙江长兴杭华玻璃有限公司 | A kind of air delivering pipeline is died automatic switching control equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4547751B2 (en) * | 1999-12-28 | 2010-09-22 | パナソニック株式会社 | Shut-off valve |
| JP3611825B2 (en) * | 2002-03-06 | 2005-01-19 | 大阪瓦斯株式会社 | Pipe line blocking method |
| DE10358758A1 (en) * | 2003-05-02 | 2004-11-18 | Walter Stucke | Joining steel pipes, to form natural gas line, involves providing steel pipes with insulation, insulating pipe ends for welding near welding sites, inserting T-pieces, and welding steel pipes |
| JP4742762B2 (en) * | 2005-09-12 | 2011-08-10 | 株式会社フジキン | Fluid control device |
| JP4938479B2 (en) * | 2007-02-01 | 2012-05-23 | 株式会社水道技術開発機構 | Gas shutoff method for gas piping |
| WO2009046433A2 (en) * | 2007-10-05 | 2009-04-09 | Hydra-Flex, Inc. | Chemical delivery system |
| KR101048332B1 (en) * | 2008-11-25 | 2011-07-15 | 한국가스공사 | Natural gas constant pressure equipment and its operation method |
| US8544497B2 (en) * | 2009-10-30 | 2013-10-01 | Emd Millipore Corporation | Fluid transfer device and system |
| EP3282158A1 (en) * | 2016-08-09 | 2018-02-14 | Renato Colombo | Flow control valve |
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2018
- 2018-08-21 CN CN201810952580.2A patent/CN110513558B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208687200U (en) * | 2018-08-21 | 2019-04-02 | 浙江长兴杭华玻璃有限公司 | A kind of air delivering pipeline is died automatic switching control equipment |
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| CN110513558A (en) | 2019-11-29 |
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