CN209069524U - Pipeline welding seam tightness detection device - Google Patents
Pipeline welding seam tightness detection device Download PDFInfo
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- CN209069524U CN209069524U CN201821227459.5U CN201821227459U CN209069524U CN 209069524 U CN209069524 U CN 209069524U CN 201821227459 U CN201821227459 U CN 201821227459U CN 209069524 U CN209069524 U CN 209069524U
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- sealing
- deck board
- joint strip
- sealing joint
- pipeline
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- 238000001514 detection method Methods 0.000 title claims abstract 3
- 238000003466 welding Methods 0.000 title abstract description 3
- 238000007789 sealing Methods 0.000 claims abstract description 246
- 238000005086 pumping Methods 0.000 claims abstract description 21
- 239000002390 adhesive tape Substances 0.000 claims description 26
- 239000000565 sealant Substances 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a pipeline welding seam leakproofness detection device belongs to the pipeline field. The device includes: the device comprises a first sealed cabin plate and a second sealed cabin plate which are connected in an aligned mode, a first sealing rubber strip, a second sealing rubber strip, a third sealing rubber strip and a fourth sealing rubber strip which are connected to two ends of the first sealed cabin plate and the second sealed cabin plate, a vacuum pumping opening joint and a gate and a vacuum pressure gauge and joint which are connected with the first sealed cabin plate, and a pressure relief interface and a gate which are connected with the vacuum pressure gauge and the joint. The position of the weld defects can be conveniently observed through the transparent first sealed cabin plate and the transparent second sealed cabin plate, the device is convenient to disassemble, and the device is portable; the sealing performance of the device is ensured by the sealing rubber strip; the leakage position of the pipeline is accurately determined through the matching of a vacuum pumping port joint, the pressure pumping of a gate and a vacuum pressure gauge and the joint; the device has the advantages of simple and convenient operation, high efficiency, resource saving and capability of timely and accurately finding the position of the weld defects.
Description
Technical field
The utility model relates to pipeline field, in particular to a kind of pipeline-weld device for detecting sealability.
Background technique
Pipeline is constantly applied to the every field of life, in use process, is needed damaged pipeline or difference
The pipeline of length connects, and the pipeline generally used is that steel pipe needs to detect pipeline-weld when welding steel pipe
Leakproofness.For example, pipeline-weld device for detecting sealability can be used when carrying out pipeline-weld sealing propertytest.Therefore how to set
Count out the problem of a kind of pipeline-weld device for detecting sealability is extremely paid close attention at pipeline field people.
Utility model content
The utility model embodiment provides a kind of pipeline-weld device for detecting sealability, is let out with solving the relevant technologies determination
Leak position accuracy is low, waste of resource and the problem of low efficiency.The technical solution is as follows:
A kind of pipeline-weld device for detecting sealability, the pipeline-weld device for detecting sealability include: the first sealed compartment
Plate, the second sealing deck board, the first sealing joint strip, the second sealing joint strip, third sealing joint strip, the 4th sealing joint strip, vacuum suction
Mouth connector and gate, pressure release interface and gate and pressure vacuum gauge and connector；
The first sealing deck board is connect with the second sealing deck board, described first sealing deck board one end and described first
Sealing joint strip is connected, and the first sealing deck board other end is connected with the third sealing joint strip；
Second sealing deck board one end is connected with second sealing joint strip, the second sealing deck board other end and institute
The 4th sealing joint strip is stated to be connected；
It is described first sealing deck board respectively with the vacuum pumping opening connector and gate and the pressure vacuum gauge and connector
It is connected, the pressure release interface and gate are connected with the pressure vacuum gauge and connector；
Wherein, the first sealing deck board and the second sealing deck board are transparent deck board.
Optionally, first sealing joint strip, second sealing joint strip, the third sealing joint strip, the described 4th close
Lute in is provided between seal strip and pipeline.
Optionally, first through hole is provided in the first sealing deck board；
The first through hole connects with the vacuum pumping opening connector and gate.
Optionally, the second through-hole is provided in the first sealing deck board；
Second through-hole connects with the pressure vacuum gauge and connector.
Optionally, the pipeline-weld device for detecting sealability further include: sealing joint strip in first, sealant in second
Item；
In described first in sealing joint strip and described second sealing joint strip be all set in it is described first sealing deck board with it is described
Between second sealing deck board.
Optionally, sealing joint strip includes: the first cone seal adhesive tape, the first inner concave shape sealing joint strip in described first；
The first cone seal adhesive tape is connect with the first sealing deck board, the first inner concave shape sealing joint strip and institute
State the connection of the second sealing deck board.
Optionally, sealing joint strip includes: the second cone seal adhesive tape, the second inner concave shape sealing joint strip in described second；
The second cone seal adhesive tape is connect with the first sealing deck board, the second inner concave shape sealing joint strip and institute
State the connection of the second sealing deck board.
Optionally, the sealed compartment both sides that the first sealing deck board and the second sealing deck board connect and compose are symmetrical arranged
At least a pair of of third through-hole；
The mating fastening spiral shell for being provided through the first sealing deck board and the second sealing deck board of the third through-hole
Bolt, and fastening nut matched with the fastening bolt.
Technical solution bring beneficial effect provided by the present application includes at least:
The disassembly for facilitating device by the first sealing deck board and the second sealing deck board, so that device is portable；By transparent
First sealing deck board and the second sealing deck board are convenient for the position of observation weld defect；Pass through the first sealing joint strip, the second sealant
Article, third sealing joint strip and the 4th sealing joint strip ensure the leakproofness of device, ensure that the accuracy of inspection result；By true
Empty pump port connector and gate take out the cooperation of pressure and pressure vacuum gauge and connector, in time, accurately determine pipe leakage position；
Make that the inspection of pipeline-weld leakproofness is simple and convenient, economizes on resources by the present apparatus, it is high-efficient and can discovery promptly and accurately
The position of weld defect.
Detailed description of the invention
Fig. 1 is a kind of pipeline-weld device for detecting sealability structural schematic diagram provided by the embodiment of the utility model；
Fig. 2 is a kind of pipeline-weld device for detecting sealability structural schematic diagram provided by the embodiment of the utility model；
Fig. 3 is a kind of pipeline-weld device for detecting sealability structural schematic diagram provided by the embodiment of the utility model；
Fig. 4 is a kind of pipeline-weld device for detecting sealability structural schematic diagram provided by the embodiment of the utility model；
Fig. 5 is a kind of pipeline-weld device for detecting sealability structural schematic diagram provided by the embodiment of the utility model.
Wherein, the label in attached drawing is described below:
It is close that 1A first seals deck board, the sealing of 1B second deck board, 21 first sealing joint strips, 22 second sealing joint strips, 23 thirds
It seal strip, 24 the 4th sealing joint strips, 3 vacuum pumping opening connectors and gate, 4 pressure release interfaces and gate, 5 pressure vacuum gauges and connects
Head, sealing joint strip in 6 first, the first cone seal of 6A adhesive tape, the first inner concave shape of 6B sealing joint strip, sealing joint strip, 7A in 7 second
Second cone seal adhesive tape, the second inner concave shape of 7B sealing joint strip, 8 third through-holes, 9 fastening bolts, 10 fastening nuts.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
The utility model embodiment provides a kind of pipeline-weld device for detecting sealability, and referring to Fig. 1, which includes:
First sealing deck board 1A, second sealing deck board 1B, the first sealing joint strip 21, the second sealing joint strip 22, third sealing joint strip 23,
4th sealing joint strip 24, vacuum pumping opening connector and gate 3, pressure release interface and gate 4 and pressure vacuum gauge and connector 5.
First sealing deck board 1A is connect with the second sealing deck board 1B, first sealing one end deck board 1A and the first sealing joint strip 21
It is connected, the first sealing deck board 1A other end is connected with third sealing joint strip 23；
Second sealing one end deck board 1B is connected with the second sealing joint strip 22, the second sealing deck board 1B other end and the 4th sealing
Adhesive tape 24 is connected；
First sealing deck board 1A is connected with vacuum pumping opening connector and gate 3 and pressure vacuum gauge and connector 5 respectively, pressure release
Interface and gate 4 are connected with pressure vacuum gauge and connector 5；
Wherein, the first sealing deck board 1A and the second sealing deck board 1B is transparent deck board.
For first sealing deck board 1A and the second sealing deck board 1B to sealed compartment is just connected and composed, first seals the one end deck board 1A
It is connected with the first sealing joint strip 21, the first sealing deck board 1A other end is connected with third sealing joint strip 23, the second sealing deck board 1B
One end is connected with the second sealing joint strip 22, and the second sealing deck board 1B other end is connected with the 4th sealing joint strip 24, the first sealant
Item 21 and the second sealing joint strip 22 just and with seal for pipe joints are connect relatively, and third sealing joint strip 23 and the 4th sealing joint strip 24 are opposite
It just and with seal for pipe joints connect, the first sealing deck board 1A and vacuum pumping opening connector and gate 3 are tightly connected, the first sealing deck board
1A and pressure vacuum gauge and connector 5 are tightly connected, and pressure release interface and gate 4 are tightly connected with pressure vacuum gauge and connector 5.
First sealing deck board 1A and the second sealing deck board 1B is the acrylic material of half transparent slips shape.
Sealed compartment is connected and composed by the first transparent sealing deck board 1A and the second transparent sealing deck board 1B, passes through first
Sealing joint strip 21, the second sealing joint strip 22, third sealing joint strip 23 and the 4th sealing joint strip 24 connect sealed compartment and seal for pipe joints
It connects, it is close to be tightly connected control by vacuum pumping opening connector and gate 3, pressure release interface and gate 4 and pressure vacuum gauge and connector 5
Pressure change in batten down.
Keep sealed compartment detachable by the first sealing deck board and the second sealing deck board, so that the device is flexible, portable.Pass through
Transparent first sealing deck board and the second sealing deck board, can be comprehensive in time observation pipeline-weld the case where.Pass through sealant
Item connect sealed compartment with seal for pipe joints, ensure that the accuracy of inspection result.Pass through pressure change test tube in sealed compartment
The leakproofness of road weld seam ensures the leakproofness between sealed compartment and pipeline by pressure vacuum gauge and connector.Pass through present apparatus energy
The position for timely and accurately finding weld defect, economizes on resources, high-efficient and be able to satisfy applying for small-sized construction team's mobility strong
Work site requirement.
In an alternative embodiment, the first sealing joint strip 21, the second sealing joint strip 22, third sealing joint strip the 23, the 4th
Lute in is provided between sealing joint strip 24 and pipeline.
The first sealing joint strip 21, the second sealing joint strip 22, third by lute in along sealed compartment shell two-port seal
Smearing sealing is carried out at adhesive tape 23, the 4th sealing joint strip 24 and pipeline joint-seam.
In an alternative embodiment, first through hole is provided on the first sealing deck board 1A；
First through hole connects with vacuum pumping opening connector and gate 3.
First through hole inner wall is provided with screw thread, vacuum pumping opening connector and gate 3 and connect one end with the first sealing deck board 1A
Outer wall is provided with screw thread, and first through hole is detachably connected with vacuum pumping opening connector and gate 3 by screw thread.
In an alternative embodiment, the second through-hole is provided on the first sealing deck board 1A；
Second through-hole connects with pressure vacuum gauge and connector 5.
Second through-hole wall is provided with screw thread, pressure vacuum gauge and connector 5 and connect one end outer wall with the first sealing deck board 1A
It is provided with screw thread, the second through-hole is detachably connected with pressure vacuum gauge and connector 5 by screw thread.
In an alternative embodiment, referring to fig. 2, pipeline-weld device for detecting sealability further include: sealant in first
Sealing joint strip 7 in item 6, second；
Sealing joint strip 7 is all set in the sealing deck board of the first sealing deck board 1A and second in sealing joint strip 6 and second in first
Between 1B.
Sealing joint strip 7 is respectively arranged at the first sealing deck board 1A and the second sealed compartment in sealing joint strip 6 and second in first
Both sides on the inside of plate 1B connection, sealing joint strip 7 is Nian Jie with sealed compartment in sealing joint strip 6 and second in first.Sealing joint strip 6 in first
With second in sealing joint strip 7 both ends with sealing joint strip be tightly connected.
In an alternative embodiment, referring to Fig. 3, sealing joint strip 6 includes: the first cone seal adhesive tape 6A, in first
One inner concave shape sealing joint strip 6B；
First cone seal adhesive tape 6A is connect with the first sealing deck board 1A, the sealing of the first inner concave shape sealing joint strip 6B and second
Deck board 1B connection.
First cone seal adhesive tape 6A is Nian Jie with the first sealing deck board 1A sealing, the first inner concave shape sealing joint strip 6B and the
Two sealing deck board 1B sealing bondings, the first cone seal adhesive tape 6A and the first inner concave shape sealing joint strip 6B are to just connecting.Wherein,
The connection of first cone seal adhesive tape 6A, the first inner concave shape sealing joint strip 6B and the first sealing deck board 1A, the second sealing deck board 1B
Relationship, the utility model embodiment are without restriction.For example, it is also possible to be the sealing deck board of the first cone seal adhesive tape 6A and second
1B sealing bonding, the first inner concave shape sealing joint strip 6B are Nian Jie with the first sealing deck board 1A sealing.
In an alternative embodiment, referring to fig. 4, sealing joint strip 7 includes: the second cone seal adhesive tape 7A, in second
Two inner concave shape sealing joint strip 7B；
Second cone seal adhesive tape 7A is connect with the first sealing deck board 1A, the sealing of the second inner concave shape sealing joint strip 7B and second
Deck board 1B connection.
Second cone seal adhesive tape 7A is Nian Jie with the first sealing deck board 1A sealing, the second inner concave shape sealing joint strip 7B and the
Two sealing deck board 1B sealing bondings, the second cone seal adhesive tape 7A and the second inner concave shape sealing joint strip 7B are to just connecting.Wherein,
The connection of second cone seal adhesive tape 7A, the second inner concave shape sealing joint strip 7B and the first sealing deck board 1A, the second sealing deck board 1B
Relationship, the utility model embodiment are without restriction.For example, it is also possible to be the sealing deck board of the second cone seal adhesive tape 7A and second
1B sealing bonding, the second inner concave shape sealing joint strip 7B are Nian Jie with the first sealing deck board 1A sealing.
In an alternative embodiment, it is connected and composed referring to Fig. 5, the first sealing deck board 1A and the second sealing deck board 1B close
Batten down both sides are symmetrical arranged at least a pair of of third through-hole 8；
The mating fastening bolt 9 for being provided through the sealing of the first sealing deck board 1A and second deck board 1B of third through-hole 8, and
Fastening nut 10 matched with fastening bolt 9.
Fastening bolt 9 passes through third through-hole 8 and is detachably connected with fastening nut 10, so that first seals deck board 1A and the
Two sealing deck board 1B are closely connected.
When operation, first after face of weld uniformly smears suds, deck board is sealed by the first of transparent acrylic material
The sealed compartment that the sealing of 1A and second deck board 1B is constituted is wrapped on the outside of steel pipe weld seam, by the first cone seal adhesive tape 6A and the
One inner concave shape sealing joint strip 6B is to just simultaneously grafting is tight, and the second cone seal adhesive tape 7A, the second inner concave shape sealing joint strip 7B are to just
And grafting is tight.Third through-hole 8 is passed through using fastening bolt 9 to be detachably connected with fastening nut 10, and is fastened；So that
First sealing deck board 1A is closely connect with the second sealing deck board 1B.Then using lute in along the of sealed compartment shell two-port
It is smeared at one sealing joint strip 21, the second sealing joint strip 22, third sealing joint strip 23, the 4th sealing joint strip 24 and pipeline joint-seam
Sealing, connection vacuum pump adapter and vacuum pumping opening connector and gate 3, close pressure release interface and gate 4 and start vacuum pump into
Row pumping, while the numerical value of the pressure vacuum gauge and connector 5 installed on the first sealing deck board 1A is observed, when pressure is down to default gas
When pressure value, vacuum pumping opening connector and gate 3 and termination of pumping pressure stabilizing 3 to 5 minutes are closed, pass through the first transparent sealing deck board 1A
Face of weld is observed with the second sealing deck board 1B, when finding that commissure has bubble to occur, that is, can determine whether that weld seam has infiltration
Leak source, slowly opening pressure release interface and gate 4 at this time keeps pressure in sealed compartment consistent with sealed compartment external pressure, while unscrewing fastening
Bolt 9 and fastening nut 10 make the first sealing deck board 1A seal deck board 1B with second and separate, carry out soldering behaviour to seepage place
Make.
Sealed compartment is connected and composed by the first transparent sealing deck board 1A and the second transparent sealing deck board 1B；Pass through first
Sealing joint strip 21, the second sealing joint strip 22, third sealing joint strip 23 and the 4th sealing joint strip 24 connect sealed compartment and seal for pipe joints
It connects；It is close that control is tightly connected by vacuum pumping opening connector and gate 3, pressure release interface and gate 4 and pressure vacuum gauge and connector 5
Pressure change in batten down；By the first cone seal adhesive tape 6A and the first inner concave shape sealing joint strip 6B to just connecting, the second taper
Sealing joint strip 7A, to just connecting, ensure that the leakproofness of sealed compartment and pipeline with the second inner concave shape sealing joint strip 7B；Pass through third
Through-hole 8, fastening bolt 9 and fastening nut 10, further ensure the leakproofness of sealed compartment and pipeline.
Keep sealed compartment detachable by the first sealing deck board and the second sealing deck board, so that the device is flexible, portable.Pass through
Transparent first sealing deck board and the second sealing deck board, can be comprehensive in time observation pipeline-weld the case where.Pass through sealant
Item connect sealed compartment with seal for pipe joints, ensure that the accuracy of inspection result.Pass through pressure change test tube in sealed compartment
The leakproofness of road weld seam ensures the leakproofness between sealed compartment and pipeline by pressure vacuum gauge and connector.By third through-hole,
Fastening bolt and fastening nut further ensure the leakproofness of sealed compartment and pipeline.It can be convenient accurately by the present apparatus
The butt weld for detecting steel pipe whether there is leakage problems, and equipment is simple, portable, flexible, is able to satisfy small-sized construction team
The construction site of mobility strong requires；It economizes on resources, it is high-efficient, it is not influenced by construction part.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
Above is only an example of the present application, all in spirit herein and principle not to limit the application
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this application.
Claims (8)
1. a kind of pipeline-weld device for detecting sealability, which is characterized in that the pipeline-weld device for detecting sealability includes:
One sealing deck board (1A), the second sealing deck board (1B), the first sealing joint strip (21), the second sealing joint strip (22), third sealant
Article (23), the 4th sealing joint strip (24), vacuum pumping opening connector and gate (3), pressure release interface and gate (4) and pressure vacuum gauge
And connector (5)；
It is described first sealing deck board (1A) with it is described second sealing deck board (1B) connect, it is described first seal deck board one end (1A) and
First sealing joint strip (21) is connected, first sealing deck board (1A) other end and third sealing joint strip (23) phase
Even；
Second sealing deck board one end (1B) is connected with second sealing joint strip (22), and second sealing deck board (1B) is another
One end is connected with the 4th sealing joint strip (24)；
First sealing deck board (1A) respectively with the vacuum pumping opening connector and gate (3) and the pressure vacuum gauge and connect
Head (5) is connected, and the pressure release interface and gate (4) are connected with the pressure vacuum gauge and connector (5)；
Wherein, first sealing deck board (1A) and second sealing deck board (1B) are transparent deck board.
2. pipeline-weld device for detecting sealability according to claim 1, which is characterized in that first sealing joint strip
(21), between second sealing joint strip (22), the third sealing joint strip (23), the 4th sealing joint strip (24) and pipeline
It is provided with lute in.
3. pipeline-weld device for detecting sealability according to claim 1, which is characterized in that the first sealing deck board
First through hole is provided on (1A)；
The first through hole connects with the vacuum pumping opening connector and gate (3).
4. pipeline-weld device for detecting sealability according to claim 1, which is characterized in that the first sealing deck board
The second through-hole is provided on (1A)；
Second through-hole connects with the pressure vacuum gauge and connector (5).
5. pipeline-weld device for detecting sealability according to claim 1, which is characterized in that the pipeline-weld leakproofness
Detection device further include: sealing joint strip (6) in first, sealing joint strip (7) in second；
Sealing joint strip (7) is all set in first sealing deck board (1A) in sealing joint strip (6) and described second in described first
Between second sealing deck board (1B).
6. pipeline-weld device for detecting sealability according to claim 5, which is characterized in that sealing joint strip in described first
It (6) include: the first cone seal adhesive tape (6A), the first inner concave shape sealing joint strip (6B)；
The first cone seal adhesive tape (6A) connect with first sealing deck board (1A), the first inner concave shape sealing joint strip
(6B) is connect with second sealing deck board (1B).
7. pipeline-weld device for detecting sealability according to claim 5, which is characterized in that sealing joint strip in described second
It (7) include: the second cone seal adhesive tape (7A), the second inner concave shape sealing joint strip (7B)；
The second cone seal adhesive tape (7A) connect with first sealing deck board (1A), the second inner concave shape sealing joint strip
(7B) is connect with second sealing deck board (1B).
8. pipeline-weld device for detecting sealability according to claim 1, which is characterized in that the first sealing deck board
The sealed compartment both sides that (1A) and second sealing deck board (1B) connect and compose are symmetrical arranged at least a pair of of third through-hole (8)；
The third through-hole (8) is mating to be provided through first sealing deck board (1A) and second sealing deck board (1B)
Fastening bolt (9), and the matched fastening nut (10) with the fastening bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227459.5U CN209069524U (en) | 2018-08-01 | 2018-08-01 | Pipeline welding seam tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227459.5U CN209069524U (en) | 2018-08-01 | 2018-08-01 | Pipeline welding seam tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209069524U true CN209069524U (en) | 2019-07-05 |
Family
ID=67090013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821227459.5U Active CN209069524U (en) | 2018-08-01 | 2018-08-01 | Pipeline welding seam tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209069524U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657347A (en) * | 2019-10-11 | 2020-01-07 | 云南电网有限责任公司电力科学研究院 | Hydrogen conveying pipeline |
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
| CN116952483A (en) * | 2023-07-24 | 2023-10-27 | 盾构及掘进技术国家重点实验室 | Low-vacuum tunnel joint micro-leakage test device and test method thereof |
-
2018
- 2018-08-01 CN CN201821227459.5U patent/CN209069524U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657347A (en) * | 2019-10-11 | 2020-01-07 | 云南电网有限责任公司电力科学研究院 | Hydrogen conveying pipeline |
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
| CN116952483A (en) * | 2023-07-24 | 2023-10-27 | 盾构及掘进技术国家重点实验室 | Low-vacuum tunnel joint micro-leakage test device and test method thereof |
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