CN113339552B - Clean compressed air conveying pipeline system - Google Patents
Clean compressed air conveying pipeline system Download PDFInfo
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- CN113339552B CN113339552B CN202110786050.7A CN202110786050A CN113339552B CN 113339552 B CN113339552 B CN 113339552B CN 202110786050 A CN202110786050 A CN 202110786050A CN 113339552 B CN113339552 B CN 113339552B
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- 230000000903 blocking effect Effects 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 16
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a clean compressed air conveying pipeline system, which belongs to the technical field of compressed air conveying, and particularly comprises a first pipeline and a second pipeline, wherein the second pipeline is connected to the right end of the first pipeline, and further comprises: the backflow prevention device is arranged inside the second pipeline; the backflow preventing device comprises a gas blocking seat and a supporting seat, wherein the gas blocking seat and the supporting seat are arranged in a second pipeline, a first inserting cylinder is arranged at the side end of the gas blocking seat, a first inserting rod is inserted into the inner side of the first inserting cylinder, a second inserting cylinder is arranged at the side end of the supporting seat, a second inserting rod is inserted into the inner side of the second inserting cylinder, a clamping seat is arranged between the second inserting rod and the first inserting rod, a rubber pad is arranged at the inner side of the clamping seat, and an air inlet is formed in the inner wall of the gas blocking seat, and the backflow preventing device has the beneficial effects that: through setting up anti-return device at the second pipeline, air promotes the cassette and removes, and the export of rethread cassette control air is opened and is closed, prevents that the clean compressed air of air backflow pollution.
Description
Technical Field
The invention relates to the technical field of compressed air conveying, in particular to a clean compressed air conveying pipeline system.
Background
All high-purity and high-clean gas in the clean compressed air pipeline system is required to be conveyed to a point for the instrument through a pipeline, in order to meet the quality requirement of the instrument on the gas, under the condition that the gas outlet index is certain, the material selection and construction quality of a piping system are more important, besides depending on the precision of gas making or purifying equipment, the air is greatly influenced by a plurality of factors of the pipeline system, namely, the air compressed by external force has compressibility, the air is compressed by the external force, the air after the volume of the air is reduced by the mechanical work of an air compressor, the compressed air is called compressed air, and the compressed air is an important power source and has the obvious characteristics of clear and transparent performance, convenient conveying, no special harmful performance, no fire hazard, no overload, capability of working under a plurality of unfavorable environments, the air is always available everywhere, the compressed air is a second most power source which is inferior to electric power, and has a plurality of purposes, and the application range of the compressed air is wide in petroleum, chemical industry, metallurgy, electric power, mechanical industry, light industry, textile industry, electronic manufacturing, food industry, research and development industries.
After the existing clean compressed air conveying pipeline conveys gas to metal, a certain amount of gas is reserved on the surface of the metal, various pollutants are adhered to the air, and the air easily flows backwards and reenters the conveying pipeline to pollute the clean gas.
To this end, we propose a clean compressed air delivery duct system.
Disclosure of Invention
The present invention has been made in view of the above and/or problems occurring in the prior art of a clean compressed air delivery duct system.
Therefore, the invention aims to provide a clean compressed air conveying pipeline system, by arranging the backflow prevention device on the second pipeline, the air pushes the clamping seat to move, and then the clamping seat controls the opening and closing of the air outlet to prevent the air from flowing backwards to pollute the clean compressed air, so that the problems that a certain amount of air remains on the metal surface after the clean compressed air is conveyed, various pollutants are adhered to the air, the air is easy to flow backwards, and the clean air is polluted by reentering the conveying pipeline can be solved.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
a clean compressed air delivery duct system, comprising: first pipeline and second pipeline, the second pipeline is connected at first pipeline right-hand member, still includes: the backflow prevention device is arranged inside the second pipeline;
the backflow preventing device comprises a gas blocking seat and a supporting seat, the gas blocking seat and the supporting seat are installed inside a second pipeline, a first inserting cylinder is installed at the side end of the gas blocking seat, a first inserting rod is inserted into the inner side of the first inserting cylinder, a second inserting cylinder is installed at the side end of the supporting seat, a second inserting rod is inserted into the inner side of the second inserting cylinder, a clamping seat is installed between the second inserting rod and the first inserting rod, a rubber pad is installed on the inner side of the clamping seat, an air inlet is formed in the inner wall of the gas blocking seat, and an air outlet and a second air outlet are formed in the inner wall of the supporting seat.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the right end of the first pipeline is provided with a connecting inner seat, the left end of the second pipeline is provided with a connecting outer seat, and the connecting outer seat is clamped on the outer side of the connecting inner seat.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: and a sealing gasket is arranged between the connecting inner seat and the connecting outer seat, and bolts are arranged between the connecting inner seat, the connecting outer seat and the sealing gasket.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the right end of the second pipeline is provided with a connector, the right end of the connector is provided with a diffusion head, and the inner side of the diffusion head is provided with a first shunt groove.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the connecting block is arranged at the right end of the inserting rod II, the rubber block is arranged at the right end of the connecting block, and the connecting block and the rubber block are inserted into the inner side of the inserting cylinder II.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the inner side of the second pipeline is provided with a positioning block, and the air blocking seat is arranged on the inner side of the positioning block.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the air blocking seat and the supporting seat are arranged in a trapezoid cover shape, and a right opening of the air outlet is larger than a left opening.
As a preferred embodiment of the clean compressed air delivery pipe system according to the present invention, wherein: the inner side of the diffusion head is provided with a second diversion groove which is in a circular arc shape.
Compared with the prior art:
through installing gas barrier seat and supporting seat, be used for preventing the air refluence to the second pipeline in, through installing cartridge one and cartridge two, make cartridge one and cartridge two can be at cartridge one and cartridge two internal movement, so make the cassette can carry out the horizontal movement, make the cassette attached at the gas barrier seat right-hand member, through setting up anti-return device at the second pipeline, the air promotes the cassette and removes, the export of rethread cassette control air is opened and is closed, prevent the clean compressed air of air backflow pollution.
Drawings
FIG. 1 is a block diagram of embodiment 1 of the present invention;
FIG. 2 is a block diagram of zone A in example 1 of the present invention;
FIG. 3 is a right side view of the choke seat according to embodiment 1 of the present invention;
fig. 4 is a front view of embodiment 1 of the present invention;
FIG. 5 is a right side view of the diffusion head of example 1 of the present invention;
fig. 6 is a right side view of the diffusion head in embodiment 2 of the present invention.
In the figure: the first pipeline 1, the connecting inner seat 11, the sealing gasket 12, the bolt 13, the second pipeline 2, the connecting outer seat 21, the connector 22, the diffusion head 23, the first diversion groove 24, the second diversion groove 25, the backflow prevention device 3, the gas blocking seat 31, the positioning block 311, the air inlet 312, the first plug cylinder 32, the first plug rod 33, the clamping seat 34, the rubber pad 341, the second plug rod 35, the connecting block 351, the rubber block 352, the second plug cylinder 36, the supporting seat 37, the first air outlet 371 and the second air outlet 372.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1:
the invention provides a clean compressed air conveying pipeline system, which has the advantage of preventing residual air on metal from entering a pipeline to pollute the clean compressed air, and referring to figures 1-5, the pipeline system comprises a first pipeline 1 and a second pipeline 2;
further, the right end of the first pipeline 1 is provided with the connecting inner seat 11, the sealing gasket 12 is arranged between the connecting inner seat 11 and the connecting outer seat 21, the bolt 13 is arranged between the connecting inner seat 11, the connecting outer seat 21 and the sealing gasket 12, specifically, the first pipeline 1 has the function of conveying clean compressed air, the connecting inner seat 11 has the function of being tightly installed with the connecting outer seat 21, the sealing gasket 12 has the function of sealing between the connecting inner seat 11 and the connecting outer seat 21, and the bolt 13 has the functions of the fixing seat 11, the sealing gasket 12 and the connecting outer seat 21.
Further, the second pipeline 2 is connected at the right end of the first pipeline 1, the outer seat 21 is connected in the installation of the left end of the second pipeline 2, the outer seat 21 is connected in the outside of the inner seat 11 in a clamping manner, the connector 22 is arranged at the right end of the second pipeline 2, the diffusion head 23 is arranged at the right end of the connector 22, the first 24 of the diversion groove is arranged at the inner side of the diffusion head 23, specifically, the second pipeline 2 has the function of conveying clean compressed air, the outer seat 21 is connected and fixed with the inner seat 11 in a clamping manner, the first pipeline 1 and the second pipeline 2 are connected and fixed, the connector 22 has the function of fixing the diffusion head 23, the diffusion head 23 has the function of outwards diffusing clean compressed air sprayed out of the second pipeline 2, the contact area between the clean compressed air and processed metal is increased, the first 24 of the diversion groove has the function of improving the flow smoothness of the clean compressed air, and the waste of the clean compressed air caused by scattered air is reduced.
Further, the backflow preventing device 3 is arranged in the second pipeline 2, the backflow preventing device 3 comprises a gas blocking seat 31 and a supporting seat 37, the gas blocking seat 31 and the supporting seat 37 are arranged in the second pipeline 2, a first plug cylinder 32 is arranged at the side end of the gas blocking seat 31, a first plug rod 33 is plugged at the inner side of the first plug cylinder 32, a second plug cylinder 36 is arranged at the side end of the supporting seat 37, a second plug rod 35 is plugged at the inner side of the second plug cylinder 36, a clamping seat 34 is arranged between the second plug rod 35 and the first plug cylinder 33, a rubber pad 341 is arranged at the inner side of the clamping seat 34, an air inlet 312 is arranged at the inner wall of the gas blocking seat 31, an air outlet 371 and an air outlet 372 are arranged at the inner wall of the supporting seat 37, a connecting block 351 is arranged at the right end of the second plug rod 35, a rubber block 352 is arranged at the right end of the connecting block 351, the connecting block 351 and the rubber block 352 are plugged at the inner side of the second plug cylinder 36, a positioning block 311 is arranged at the inner side of the second pipeline 2, the gas blocking seat 31 is arranged at the inner side of the positioning block 311, the gas blocking seat 31 and the supporting seat 37 are arranged in a trapezoid cover shape, the opening on the right side of the air outlet 371 is larger than the opening on the left side, specifically, the backflow preventing device 3 has the function of preventing the air staying on the metal surface from flowing backwards into the second pipeline 2, the air blocking seat 31 has the function of preventing the air from flowing backwards into the second pipeline 2, the supporting seat 37 has the function of facilitating the outward flow of clean compressed air, the supporting seat 37 is obliquely arranged, the supporting seat 37 also has the function of supporting the clamping seat 34, the first inserting cylinder 32 has the function of inserting and supporting the first inserting rod 33, the first inserting rod 33 has the function of positioning the clamping seat 34 and the clamping seat 34, the second inserting cylinder 36 has the function of inserting and supporting the second inserting rod 35, the second inserting rod 35 has the function of positioning the clamping seat 34 and the clamping seat 34, the clamping seat 34 has the function of clamping the air blocking seat 31 and is used for blocking the air inlet 312, prevent that air reflux from getting into the inside clean air of first pipeline 1 and second pipeline 2, when cassette 34 joint is at the air blocking seat 31 right-hand member, rubber pad 341 has the effect that seals air intake 312, avoid air reflux to pollute clean air, when cassette 34 is opened, air intake 312 has the effect of flowing clean air to the right, air outlet 371 and air outlet 372 have the effect of discharging clean air to the outside of second pipeline 2, connecting block 351 has the effect of installing rubber piece 352, rubber piece 352 has the effect of supporting in cartridge two 36 inboard, have the effect of reducing insert rod two 35 impact force to the right, positioning block 311 has the effect of connecting air blocking seat 31, fix air blocking seat 31, trapezoidal cover-shaped air blocking seat 31 and supporting seat 37 have the effect of reducing air impact force, increase the life of air blocking seat 31 and supporting seat 37, and be convenient for cassette 34 joint air blocking seat 31, air outlet 371 right side opening is greater than left side opening, make the air be difficult for flowing backward.
In specific use, a person skilled in the art installs the sealing gasket 12 at the right end of the connecting inner seat 11, clamps the connecting outer seat 21 at the outer side of the connecting inner seat 11 and the sealing gasket 12, seals and fixes the connecting outer seat 21 and the sealing gasket 12 through the bolts 13, connects the first pipeline 1 and the second pipeline 2, conveys clean compressed air from the first pipeline 1 to the second pipeline 2, installs the air blocking seat 31 and the supporting seat 37 inside the second pipeline 2, installs the first plug tube 32 at the side end of the air blocking seat 31, inserts the first plug rod 33 at the inner side of the first plug tube 32, installs the second plug tube 36 at the side end of the supporting seat 37, inserts the second plug rod 35 at the inner side of the second plug tube 36, installs the clamping seat 34 between the second plug rod 35 and the first plug rod 33, and the clean compressed air passes through the air inlet 312 to blow the clamping seat 34 to the right, the first plug rod 33 slides to the right in the first plug tube 32, the second plug rod 35 inserts the second plug tube 36 to the right, the rubber block 352 abuts against the bottom end of the second plug tube 36, and slows down the impact force of the clean compressed air, the protection effect on the second plug cylinder 36 and the supporting seat 37 is achieved, the rubber pad 341 is arranged on the inner side of the clamping seat 34, the air inlet 312 is formed in the inner wall of the air blocking seat 31, the air outlet 371 and the air outlet 372 are formed in the inner wall of the supporting seat 37, the connecting block 351 is arranged at the right end of the second plug rod 35, the rubber block 352 is arranged at the right end of the connecting block 351, the connecting block 351 and the rubber block 352 are inserted on the inner side of the second plug cylinder 36, the positioning block 311 is arranged on the inner side of the second pipeline 2, the air blocking seat 31 is arranged on the inner side of the positioning block 311, the air blocking seat 31 and the supporting seat 37 are arranged in a trapezoid cover shape, the right opening of the air outlet 371 is larger than the left opening, clean compressed air moves from the side end of the clamping seat 34 after passing through the air inlet 312, enters between the air blocking seat 31 and the supporting seat 37, the clean compressed air moves to the output end of the second pipeline 2 again through the air outlet 371 and the air outlet 372, and finally the clean compressed air enters the diffusion head 23, when the metal is processed, the clean compressed air is absorbed and saturated, the compressed air in the first pipeline 1 and the second pipeline 2 stops being supplied, the compressed air at the end parts of the metal surface and the diffusion head 23 flows back into the second pipeline 2, at the moment, the compressed air at the right end of the second pipeline 2 and the inner side of the diffusion head 23 is clean air, the compressed air moves towards the inner side of the second pipeline 2, the clamping seat 34 is pushed to move leftwards, the thrust of the compressed air is greater than the weight of the clamping seat 34, the left end of the clamping seat 34 is clamped at the right end of the air blocking seat 31, the air inlet 312 is sealed and blocked through the rubber pad 341, and the subsequent air is prevented from entering the first pipeline 1 and the second pipeline 2 to pollute the clean compressed air.
Example 2:
the invention provides a clean compressed air conveying pipeline system, which has the advantage of preventing residual air on metal from entering a pipeline to pollute the clean compressed air, and referring to FIG. 6, the pipeline system comprises a first pipeline 1 and a second pipeline 2;
further, the second diversion groove 25 is formed in the inner side of the diffusion head 23, the second diversion groove 25 is in a circular arc shape, specifically, the second diversion groove 25 is used for conveying clean compressed air in the inner side of the diffusion head 23 to processed metal, and the circular arc-shaped second diversion groove 25 enables air to flow more uniformly, so that loss of the clean compressed air is reduced.
In specific use, a person skilled in the art installs the sealing gasket 12 at the right end of the connecting inner seat 11, clamps the connecting outer seat 21 at the outer side of the connecting inner seat 11 and the sealing gasket 12, seals and fixes the connecting outer seat 21 and the sealing gasket 12 through the bolt 13, connects the first pipeline 1 and the second pipeline 2, conveys clean compressed air from the first pipeline 1 into the second pipeline 2, installs the air blocking seat 31 and the supporting seat 37 inside the second pipeline 2, installs the first plug cylinder 32 at the side end of the air blocking seat 31, inserts the first plug rod 33 at the inner side of the plug cylinder 32, installs the second plug cylinder 36 at the side end of the supporting seat 37, inserts the second plug rod 35 at the inner side of the plug cylinder second 36, installs the clamping seat 34 between the second plug rod 35 and the first plug rod 33, and blows clean compressed air right through the air inlet 312, slides the first plug rod 33 right in the first plug cylinder 32, inserts the second plug rod 35 right in the second plug cylinder 36, the rubber block 352 is propped against the bottom end of the second inserting cylinder 36, so as to slow down the impact force of clean compressed air, play a protective role on the second inserting cylinder 36 and the supporting seat 37, the clean compressed air moves from the side end of the clamping seat 34 after passing through the air inlet 312, enters between the air blocking seat 31 and the supporting seat 37, the clean compressed air moves to the output end of the second pipeline 2 through the air outlet I371 and the air outlet II 372, finally the clean compressed air enters the diffusion head 23, and diffuses to the metal surface through the diffusion head 23 and the shunt groove II 25, when the metal is processed, the compressed air in the first pipeline 1 and the second pipeline 2 stops being supplied after being absorbed and saturated, the compressed air at the end of the metal surface and the diffusion head 23 flows back into the second pipeline 2, and the compressed air at the right end of the second pipeline 2 and the inner side of the diffusion head 23 is clean air at the moment and moves to the inner side of the second pipeline 2, pushing the clamping seat 34 to move leftwards, the pushing force of the compressed air is larger than the weight of the clamping seat 34, the left end of the clamping seat 34 is clamped at the right end of the air blocking seat 31, the air inlet 312 is sealed and blocked through the rubber pad 341, and the subsequent air is prevented from entering the first pipeline 1 and the second pipeline 2 to pollute clean compressed air.
Although the invention has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides a clean compressed air pipeline system, includes first pipeline (1) and second pipeline (2), second pipeline (2) connect at first pipeline (1) right-hand member, its characterized in that still includes: the backflow prevention device (3) is arranged inside the second pipeline (2);
the backflow prevention device (3) comprises a gas blocking seat (31) and a supporting seat (37), the gas blocking seat (31) and the supporting seat (37) are installed inside the second pipeline (2), a first inserting cylinder (32) is installed at the side end of the gas blocking seat (31), a first inserting rod (33) is inserted into the inner side of the first inserting cylinder (32), a second inserting cylinder (36) is installed at the side end of the supporting seat (37), a second inserting rod (35) is inserted into the inner side of the second inserting cylinder (36), a clamping seat (34) is installed between the second inserting rod (35) and the first inserting rod (33), a rubber pad (341) is installed inside the clamping seat (34), an air inlet (312) is formed in the inner wall of the gas blocking seat (31), and an air outlet (371) and a second air outlet (372) are formed in the inner wall of the supporting seat (37).
The connecting block (351) is installed at the right end of the inserting rod II (35), the rubber block (352) is installed at the right end of the connecting block (351), the connecting block (351) and the rubber block (352) are inserted into the inner side of the inserting cylinder II (36), the locating block (311) is installed at the inner side of the second pipeline (2), the air blocking seat (31) is installed at the inner side of the locating block (311), the air blocking seat (31) and the supporting seat (37) are arranged to be in a trapezoid cover shape, and the opening on the right side of the air outlet I (371) is larger than the opening on the left side.
2. The clean compressed air conveying pipeline system according to claim 1, wherein the right end of the first pipeline (1) is provided with a connecting inner seat (11), the left end of the second pipeline (2) is provided with a connecting outer seat (21), and the connecting outer seat (21) is clamped outside the connecting inner seat (11).
3. A clean compressed air delivery pipe system according to claim 2, wherein a sealing gasket (12) is installed between the inner connecting seat (11) and the outer connecting seat (21), and bolts (13) are installed between the inner connecting seat (11), the outer connecting seat (21) and the sealing gasket (12).
4. The clean compressed air delivery pipeline system according to claim 1, wherein a connector (22) is installed at the right end of the second pipeline (2), a diffusion head (23) is installed at the right end of the connector (22), and a first shunt groove (24) is formed in the inner side of the diffusion head (23).
5. The clean compressed air delivery pipe system according to claim 4, wherein the inside of the diffusion head (23) is provided with a second diversion groove (25), and the second diversion groove (25) is provided with a circular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786050.7A CN113339552B (en) | 2021-07-12 | 2021-07-12 | Clean compressed air conveying pipeline system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110786050.7A CN113339552B (en) | 2021-07-12 | 2021-07-12 | Clean compressed air conveying pipeline system |
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| CN113339552A CN113339552A (en) | 2021-09-03 |
| CN113339552B true CN113339552B (en) | 2023-06-27 |
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| CN114904417A (en) * | 2022-06-09 | 2022-08-16 | 浙江丹靓环境工程有限公司 | Waste gas and waste water mixing and retreatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2177576C2 (en) * | 2000-03-21 | 2001-12-27 | Новиков Михаил Иванович | Check valve |
| CN2532328Y (en) * | 2002-03-05 | 2003-01-22 | 周宝明 | Vertical/horizontal two-purpose check valve |
| CN202901399U (en) * | 2012-11-21 | 2013-04-24 | 天津伽佰俐石油制品有限公司 | One-way breakover device for alcohol ether gasoline production |
| CN103727273A (en) * | 2014-01-17 | 2014-04-16 | 江苏苏盐阀门机械有限公司 | Heavy-caliber axial flow type check valve |
| CN107202185A (en) * | 2017-06-27 | 2017-09-26 | 博纳斯威阀门股份有限公司 | Check-valves being sealed a kind of water hammer-resistant multiple flow passages more |
| CN208281574U (en) * | 2018-05-14 | 2018-12-25 | 杭州春江阀门有限公司 | A kind of novel noise eliminating check valve |
| CN108413084A (en) * | 2018-05-16 | 2018-08-17 | 徐津 | A kind of gas check (non-return) valve and exhaust apparatus |
| CN210461811U (en) * | 2019-08-05 | 2020-05-05 | 铜陵爱阀科技有限公司 | Adjustable self-pressure-relief silencing check valve |
| CN212537041U (en) * | 2020-05-11 | 2021-02-12 | 山东金钻金属制品有限公司 | Multi-groove pipeline connector |
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