CN113074325A - Passageway air leakage detection device for sponge zirconium reduction - Google Patents

Passageway air leakage detection device for sponge zirconium reduction Download PDF

Info

Publication number
CN113074325A
CN113074325A CN202110272622.XA CN202110272622A CN113074325A CN 113074325 A CN113074325 A CN 113074325A CN 202110272622 A CN202110272622 A CN 202110272622A CN 113074325 A CN113074325 A CN 113074325A
Authority
CN
China
Prior art keywords
connecting shell
sealing ring
detection device
leakage detection
air leakage
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.)
Pending
Application number
CN202110272622.XA
Other languages
Chinese (zh)
Inventor
王俊博
梁军
韩志强
周可心
唐帅
杨志波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baotai Huashen Titanium Industry Co Ltd
Original Assignee
Baotai Huashen Titanium Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baotai Huashen Titanium Industry Co Ltd filed Critical Baotai Huashen Titanium Industry Co Ltd
Priority to CN202110272622.XA priority Critical patent/CN113074325A/en
Publication of CN113074325A publication Critical patent/CN113074325A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • F17D5/06Preventing, monitoring, or locating loss using electric or acoustic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/005Protection or supervision of installations of gas pipelines, e.g. alarm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention relates to the technical field of sponge zirconium reduction, and discloses a corridor air leakage detection device for sponge zirconium reduction, which solves the problems that the pipeline air leakage detection device in the current market is inconvenient to fix on a pipeline, so that workers are very troublesome to install, and the existing pipeline air leakage detection device is inconvenient to connect two pipelines, so that the workers are very troublesome to connect pipelines, the sealing effect is not good enough, and the existing pipeline air leakage detection device can not perform temporary sealing treatment on the pipelines in air leakage, so that the subsequent leakage is serious, and comprises a pipeline body, wherein a connecting shell is sleeved on the outer part of the pipeline body, and the inner threads of the connecting shell are connected with uniformly distributed screws. And the temporary treatment function can be performed on the pipeline body when the pipeline body leaks air.

Description

Passageway air leakage detection device for sponge zirconium reduction
Technical Field
The invention belongs to the technical field of sponge zirconium reduction, and particularly relates to a corridor air leakage detection device for sponge zirconium reduction.
Background
With the development of society, the new material industry develops rapidly, zirconium and hafnium have been widely applied to the fields of aerospace, nuclear power reactors, medical treatment, petrochemical industry and the like, zirconium and hafnium materials are core materials of nuclear energy industry, are mainly used as sheathing materials of nuclear fuel and speed reduction and control materials of nuclear reactors, the demand is increasing day by day, the development prospect is considerable, sponge zirconium is also called as metal zirconium, zirconium is a chemical element, the chemical symbol is Zr, the atomic number is 40, light gray glossy metal or gray amorphous powder has certain danger, fine powder is easy to burn, sometimes spontaneous combustion and explosion can occur, therefore, when manufacturing, the airtightness of a pipeline must be ensured, leakage is prevented, especially, leakage is most easily generated at the joint of the pipeline, a pipeline air leakage detection device is needed, when pipeline connection leakage occurs, the leakage pollution area needs to be isolated in time when leakage is found, access is limited, a fire source is cut off, and emergency treatment personnel are advised to wear the self-contained respirator and wear the fire protection suit; small amount of leakage, collecting in dry, clean and covered container by sparkless tool, transferring and recovering; the large amount of leakage is covered by plastic cloth and canvas, the scattering is reduced, and sparkless tools are used for collection, transfer and recovery.
But the inconvenient fixing on the pipeline of pipeline gas leakage detection device on the existing market, lead to the staff very trouble when the installation, and current pipeline gas leakage detection device is inconvenient to be connected two pipelines, lead to staff trouble very when the connecting tube, sealed effect is not good enough, leak very easily in one-tenth, and metal zirconium powder is very easily burnt, it is very dangerous, and current pipeline gas leakage detection device, can not carry out interim sealed processing to the pipeline when leaking gas, lead to follow-up leakage serious, no matter be skin contact, eyes contact or inhale, eat into, can cause very big damage to the human body.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the aisle air leakage detection device for zirconium sponge reduction, which effectively solves the problems that the pipeline air leakage detection device in the current market is inconvenient to fix on a pipeline, connect the two pipelines and temporarily seal the pipelines in the air leakage process.
In order to achieve the purpose, the invention provides the following technical scheme: a passageway gas leakage detection device for sponge zirconium reduction comprises a pipeline body, wherein a connecting shell is sleeved outside the pipeline body, screws which are uniformly distributed are connected to the inner threads of the connecting shell, the connecting shell is fixedly connected with the pipeline body through the screws, a first sealing ring is arranged inside the connecting shell, two connecting plates are fixedly arranged inside the connecting shell, the first sealing ring is fixedly connected with the connecting shell through the connecting plates, a second sealing ring is fixedly arranged on the right side of the first sealing ring, a third sealing ring is fixedly arranged on the right side of the second sealing ring, a gas collecting box is fixedly arranged at the top of the right side of the connecting shell, through holes which are uniformly distributed are formed in the connecting shell, the gas collecting box is communicated with the connecting shell through the through holes, a gas outlet is formed in the top of the gas collecting box, and a whistle is fixedly arranged at the top of the gas collecting box, the air blowing port of whistle is linked together with the gas outlet, the right side fixed mounting of connection shell has first magnet, the right side of connection shell is equipped with seal assembly, seal assembly includes sleeve, second magnet, thread bush, a plurality of bifurcation board, thread groove, the sealed pad of a plurality of and ball, second magnet fixed mounting is in telescopic left side, a plurality of the equal even installation of bifurcation board is on telescopic right side, the bifurcation board all is equipped with the thread groove with telescopic outside, the thread bush cup joints in telescopic outside through the thread groove screw thread, sealed pad fixed mounting is on the bifurcation board, seal assembly passes through second magnet and is connected with first magnet magnetism.
Preferably, the inside of connecting shell is equipped with the screw hole that is evenly distributed, the screw passes through screw hole and connecting shell threaded connection.
Preferably, the screw is close to the one end fixed mounting of pipeline body has the cushion, the material of cushion is the rubber material.
Preferably, the radius of the first sealing ring is larger than that of the second sealing ring, and the radius of the second sealing ring is larger than that of the third sealing ring.
Preferably, the first sealing ring, the second sealing ring and the third sealing ring are all made of rubber.
Preferably, the material of the sealing gasket is rubber.
Preferably, the inner wall of the sleeve is rotatably connected with balls which are uniformly distributed, and the balls are in contact with the outer wall of the pipeline body.
Preferably, the two connecting plates are symmetrically distributed on the inner wall of the connecting shell.
Preferably, the first sealing ring is sleeved outside one end of the pipeline body.
Compared with the prior art, the invention has the beneficial effects that:
1) firstly, a user sleeves a connecting shell outside one pipeline body, then the user penetrates the other pipeline body through a sealing assembly to enter the connecting shell, and then the user rotates a screw to move the screw towards the pipeline body through the thread fit between the screw and a threaded hole so as to conveniently fix the connecting shell on the pipeline body;
2) the first sealing ring, the second sealing ring and the third sealing ring are used for ensuring that the sealing effect is better when the two pipeline bodies are connected;
3) when the air leaks from the joint of the two pipeline bodies, the air in the pipeline bodies can be sprayed out, then flows out of the air collection box through the through hole on the connecting shell and is finally sprayed out of the air outlet, and when the air is sprayed out, the whistle can be blown by the air, so that the whistle can give out a harsh sound, namely, the whistle can remind workers and maintain the whistle in time, and the device is low in manufacturing cost;
4) the utility model discloses a pipeline body, the condition of user discovery gas leakage on the pipeline body, the user can stimulate seal assembly, make second magnet and first magnet separation, and stimulate seal assembly to gas leakage department, then the staff rotates the thread bush again, screw-thread fit through thread bush and thread groove, thereby extrude a plurality of bifurcation boards, make a plurality of bifurcation board contractions, closely wrap up the pipeline body, through sealed the pad, seal up gas leakage department, from this can be when the pipeline body leaks gas, carry out interim processing to the pipeline body.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a front sectional structural view of the connection housing of the present invention;
FIG. 3 is a schematic side view of the present invention in its entirety;
FIG. 4 is a front view of the seal assembly of the present invention;
FIG. 5 is a schematic side view of a first seal ring according to the present invention;
FIG. 6 is an enlarged schematic view of the present invention at A;
FIG. 7 is an enlarged view of the structure of the present invention at B;
in the figure: 1. a pipe body; 2. a connecting shell; 3. a screw; 4. a threaded hole; 5. a soft cushion; 6. a first seal ring; 7. a second seal ring; 8. a third seal ring; 9. a connecting plate; 10. a gas collection tank; 11. a through hole; 12. an air outlet; 13. a whistle; 14. a first magnet; 15. a seal assembly; 16. a sleeve; 17. a second magnet; 18. a threaded sleeve; 19. a forking plate; 20. a thread groove; 21. a gasket; 22. and a ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, as shown in fig. 1-7, the invention comprises a pipeline body 1, a connecting shell 2 is sleeved outside the pipeline body 1, the connecting shell 2 is internally and threadedly connected with evenly distributed screws 3, the connecting shell 2 is fixedly connected with the pipeline body 1 through the screws 3, a first sealing ring 6 is arranged inside the connecting shell 2, two connecting plates 9 are fixedly arranged inside the connecting shell 2, the first sealing ring 6 is fixedly connected with the connecting shell 2 through the connecting plates 9, a second sealing ring 7 is fixedly arranged on the right side of the first sealing ring 6, a third sealing ring 8 is fixedly arranged on the right side of the second sealing ring 7, a gas collection box 10 is fixedly arranged on the top of the right side of the connecting shell 2, through holes 11 are uniformly distributed inside the connecting shell 2, the gas collection box 10 is communicated with the connecting shell 2 through the through holes 11, a gas outlet 12 is arranged on the top of the gas collection box 10, a whistle 13 is fixedly arranged on the top of the gas collection box 10, the mouth of blowing of whistle 13 is linked together with gas outlet 12, the right side fixed mounting of connecting shell 2 has first magnet 14, the right side of connecting shell 2 is equipped with sealing component 15, sealing component 15 includes sleeve 16, second magnet 17, thread bush 18, a plurality of bifurcation board 19, thread groove 20, the sealed 21 and ball 22 of a plurality of, second magnet 17 fixed mounting is in the left side of sleeve 16, the equal even right side at sleeve 16 of a plurality of bifurcation board 19 is installed, bifurcation board 19 all is equipped with thread groove 20 with sleeve 16's outside, thread bush 18 connects the outside at sleeve 16 through thread groove 20 thread bush 18, sealed 21 fixed mounting of filling up is on bifurcation board 19, sealing component 15 is connected with first magnet 14 magnetism through second magnet 17.
Embodiment two, on the basis of embodiment one, the inside of connecting shell 2 is equipped with the screw hole 4 that is evenly distributed, and screw 3 passes through screw hole 4 and connects 2 threaded connection of shell, through screw hole 4 for screw 3 can cross the screw thread and peg graft in the inside of connecting shell 2, and when rotating screw 3, through the screw-thread fit between screw 3 and the screw hole 4, make screw 3 can carry out vertical direction and remove.
In the third embodiment, on the basis of the first embodiment, the cushion 5 is fixedly mounted at one end of the screw 3 close to the pipe body 1, and the cushion 5 is made of rubber, so that when the connecting shell 2 is fixed to the pipe body 1, the cushion 5 can prevent the screw 3 from damaging the pipe body 1.
In the fourth embodiment, in addition to the first embodiment, the radius of the first seal ring 6 is larger than the radius of the second seal ring 7, and the radius of the second seal ring 7 is larger than the radius of the third seal ring 8, so that the pipe body 1 has sealing performance when being connected by the cooperation of the first seal ring 6, the second seal ring 7 and the third seal ring 8.
In a fifth embodiment, the first seal ring 6, the second seal ring 7, and the third seal ring 8 are all made of rubber, and the first seal ring 6, the second seal ring 7, and the third seal ring 8 are all made of rubber, so that the first seal ring 6, the second seal ring 7, and the third seal ring 8 have certain elasticity.
In the sixth embodiment, in addition to the first embodiment, the gasket 21 is made of rubber, and the gasket 21 has certain elasticity due to the rubber material, so that the sealing performance is better.
Seventh embodiment, on the basis of the first embodiment, the balls 22 are rotatably connected to the inner wall of the sleeve 16 and uniformly distributed, and the balls 22 are in contact with the outer wall of the pipe body 1, so that the sealing assembly 15 can be pulled more easily by the balls 22.
Eighth embodiment, on the basis of the first embodiment, the two connecting plates 9 are symmetrically distributed on the inner wall of the connecting shell 2, so that the first sealing ring 6 is better fixed inside the connecting shell 2.
In the ninth embodiment, on the basis of the first embodiment, the first seal ring 6 is sleeved outside one end of the pipe body 1, so that the sealing performance of the pipe body 1 is better.
The working principle is as follows: when a user connects two pipeline bodies 1, the user firstly sleeves a connecting shell 2 on the outside of one of the pipeline bodies 1 until a first sealing ring 6 is sleeved on the outside of the pipeline body 1, then the user penetrates the other pipeline body 1 through a sealing assembly 15 to enter the connecting shell 2 until a third sealing ring 8 is plugged into the inside of the pipeline body 1, namely the two pipeline bodies 1 are connected to have sealing performance, then the user rotates a screw 3 to enable the screw 3 to move towards the pipeline body 1 through the thread fit between the screw 3 and a threaded hole 4 so as to fix the connecting shell 2 on the pipeline body 1, if the connection part of the two pipeline bodies 1 is leaked, gas in the pipeline body 1 can be sprayed out, then flows out of a gas collection box 10 through a through hole 11 on the connecting shell 2, and finally is sprayed out of a gas outlet 12, and when the gas is sprayed, can blow whistle 13, make whistle 13 give play to the sound of thorn ear, remind the staff promptly, in time maintain, and the condition of user discovery gas leakage on pipeline body 1, the user can stimulate seal assembly 15, make second magnet 17 and first magnet 14 separation, and with seal assembly 15 pulling to gas leakage department, then the staff rotates thread bush 18 again, screw-thread fit through thread bush 18 and thread groove 20, thereby extrude a plurality of fork boards 19, make a plurality of fork boards 19 shrink, closely wrap up pipeline body 1, through sealed pad 21, seal gas leakage department, from this can be when pipeline body 1 leaks gas, carry out interim processing to pipeline body 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a zirconium sponge is passageway gas leakage detection device for reduction, includes pipeline body (1), its characterized in that: the pipeline comprises a pipeline body (1), a connecting shell (2) is sleeved outside the pipeline body (1), screws (3) which are uniformly distributed are in threaded connection with the inside of the connecting shell (2), the connecting shell (2) is fixedly connected with the pipeline body (1) through the screws (3), a first sealing ring (6) is arranged inside the connecting shell (2), two connecting plates (9) are fixedly arranged inside the connecting shell (2), the first sealing ring (6) is fixedly connected with the connecting shell (2) through the connecting plates (9), a second sealing ring (7) is fixedly arranged on the right side of the first sealing ring (6), a third sealing ring (8) is fixedly arranged on the right side of the second sealing ring (7), a gas collection box (10) is fixedly arranged at the top of the right side of the connecting shell (2), and through holes (11) which are uniformly distributed are formed inside the connecting shell (2), the gas collection box (10) is communicated with the connecting shell (2) through a through hole (11), the top of the gas collection box (10) is provided with a gas outlet (12), the top of the gas collection box (10) is fixedly provided with a whistle (13), the blowing port of the whistle (13) is communicated with the gas outlet (12), the right side of the connecting shell (2) is fixedly provided with a first magnet (14), the right side of the connecting shell (2) is provided with a sealing component (15), the sealing component (15) comprises a sleeve (16), a second magnet (17), a threaded sleeve (18), a plurality of forked plates (19), a threaded groove (20), a plurality of sealing gaskets (21) and balls (22), the second magnet (17) is fixedly arranged on the left side of the sleeve (16), the plurality of forked plates (19) are uniformly arranged on the right side of the sleeve (16), and the forked plates (19) and the outside of the sleeve (16) are provided with the threaded grooves (20), the threaded sleeve (18) is connected to the outer portion of the sleeve (16) through a threaded groove (20) and the threaded sleeve (18), the sealing gasket (21) is fixedly installed on the fork plate (19), and the sealing assembly (15) is magnetically connected with the first magnet (14) through the second magnet (17).
2. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the connecting shell (2) is internally provided with threaded holes (4) which are uniformly distributed, and the screw (3) is in threaded connection with the connecting shell (2) through the threaded holes (4).
3. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: one end fixed mounting that screw (3) are close to pipeline body (1) has cushion (5), the material of cushion (5) is the rubber material.
4. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the radius of the first sealing ring (6) is larger than that of the second sealing ring (7), and the radius of the second sealing ring (7) is larger than that of the third sealing ring (8).
5. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the first sealing ring (6), the second sealing ring (7) and the third sealing ring (8) are all made of rubber.
6. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the sealing gasket (21) is made of rubber.
7. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the pipe is characterized in that balls (22) which are uniformly distributed are connected to the inner wall of the sleeve (16) in a rotating mode, and the balls (22) are in contact with the outer wall of the pipe body (1).
8. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the two connecting plates (9) are symmetrically distributed on the inner wall of the connecting shell (2).
9. The aisle air leakage detection device for zirconium sponge reduction according to claim 1, wherein: the first sealing ring (6) is sleeved outside one end of the pipeline body (1).
CN202110272622.XA 2021-03-13 2021-03-13 Passageway air leakage detection device for sponge zirconium reduction Pending CN113074325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110272622.XA CN113074325A (en) 2021-03-13 2021-03-13 Passageway air leakage detection device for sponge zirconium reduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110272622.XA CN113074325A (en) 2021-03-13 2021-03-13 Passageway air leakage detection device for sponge zirconium reduction

Publications (1)

Publication Number Publication Date
CN113074325A true CN113074325A (en) 2021-07-06

Family

ID=76612725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110272622.XA Pending CN113074325A (en) 2021-03-13 2021-03-13 Passageway air leakage detection device for sponge zirconium reduction

Country Status (1)

Country Link
CN (1) CN113074325A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201228827Y (en) * 2008-06-27 2009-04-29 慈溪市腾宏管业有限公司 Stainless steel pipeline joint external member
CN106931252A (en) * 2017-04-25 2017-07-07 安徽省康宇水电机械成套设备有限公司 A kind of efficient sealed circle of water conservancy pipe laying joint
JP2020008526A (en) * 2018-07-12 2020-01-16 矢崎エナジーシステム株式会社 Leakage detector and leakage detection system
CN210041243U (en) * 2019-06-18 2020-02-07 镇江威斯康电器有限公司 Bus duct suspension device
CN210770825U (en) * 2019-11-08 2020-06-16 山西大医院(山西医学科学院) Water supply and drainage pipeline connecting device
CN210920448U (en) * 2019-09-11 2020-07-03 曾辉煌 Chemical pipeline safety cover
CN211526101U (en) * 2019-12-11 2020-09-18 福建广从消防器械有限公司 Chemical pipeline safety cover
CN212407972U (en) * 2020-05-21 2021-01-26 安徽省宏远建设项目管理有限公司 Portable pipeline patching device for hydraulic engineering
CN212511757U (en) * 2020-06-15 2021-02-09 广东捷凌电器股份有限公司 Electric appliance drain pipe connecting structure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201228827Y (en) * 2008-06-27 2009-04-29 慈溪市腾宏管业有限公司 Stainless steel pipeline joint external member
CN106931252A (en) * 2017-04-25 2017-07-07 安徽省康宇水电机械成套设备有限公司 A kind of efficient sealed circle of water conservancy pipe laying joint
JP2020008526A (en) * 2018-07-12 2020-01-16 矢崎エナジーシステム株式会社 Leakage detector and leakage detection system
CN210041243U (en) * 2019-06-18 2020-02-07 镇江威斯康电器有限公司 Bus duct suspension device
CN210920448U (en) * 2019-09-11 2020-07-03 曾辉煌 Chemical pipeline safety cover
CN210770825U (en) * 2019-11-08 2020-06-16 山西大医院(山西医学科学院) Water supply and drainage pipeline connecting device
CN211526101U (en) * 2019-12-11 2020-09-18 福建广从消防器械有限公司 Chemical pipeline safety cover
CN212407972U (en) * 2020-05-21 2021-01-26 安徽省宏远建设项目管理有限公司 Portable pipeline patching device for hydraulic engineering
CN212511757U (en) * 2020-06-15 2021-02-09 广东捷凌电器股份有限公司 Electric appliance drain pipe connecting structure

Similar Documents

Publication Publication Date Title
CN207762573U (en) A kind of safety device of gas pipeline
CN113074325A (en) Passageway air leakage detection device for sponge zirconium reduction
CN207652005U (en) Inverter and its Waterproof connector of cable
CN211289582U (en) Gas leakage collecting and automatic closing device
CN212869387U (en) Pipeline pressure maintaining device
CN215059788U (en) Exhaust valve with good air tightness
CN206439530U (en) A kind of error protection gas circuit mating interface
CN208900886U (en) Hermetical connecting structure device in a kind of pipe
CN206943525U (en) A kind of gas self-closing valve
CN205745739U (en) A kind of pipe fitting carrying sealing device
CN213271402U (en) Wall-through connecting pipe for clean room
CN206976827U (en) A kind of distribution box or wall current case, cabinet product waterproof observation window mechanism
CN111674717A (en) Blocking cover for ventilating pipe joint of turbine casing of aircraft engine
CN213629918U (en) Gas leakage detection control switch assembly
CN209104539U (en) A kind of waterproof connector
CN221004742U (en) Leakage automatic circuit breaker protector
CN213048828U (en) Easy-to-detach fixing structure of tracheal cannula
CN211121373U (en) Power dispatching room operating environment monitoring devices
CN210265989U (en) Anti-leakage micro pneumatic ball valve
CN210400625U (en) Hot metal detector with cooling structure
CN210485233U (en) Movable joint protection device for lubricating oil sampling pipeline
CN218822982U (en) Gas detection device
CN210440969U (en) Non-manhole inspection hole gas holder
CN208688743U (en) A kind of incendivity class clean energy resource leakage proof detection device
CN213929838U (en) Multi-sealing flange with leakage monitoring function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210706

RJ01 Rejection of invention patent application after publication