CN211398987U - Pipeline pressure test blind plate - Google Patents
Pipeline pressure test blind plate Download PDFInfo
- Publication number
- CN211398987U CN211398987U CN201922423465.9U CN201922423465U CN211398987U CN 211398987 U CN211398987 U CN 211398987U CN 201922423465 U CN201922423465 U CN 201922423465U CN 211398987 U CN211398987 U CN 211398987U
- Authority
- CN
- China
- Prior art keywords
- blind plate
- pipeline
- pressure test
- pressure
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 239000000565 sealant Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 6
- 239000003949 liquefied natural gas Substances 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a pipeline pressure testing blind plate, including the blind plate body, be fixed with at least two-layer sleeve on the terminal surface of blind plate body, the sleeve passes through metal-to-metal sealant and pipeline is fixed. Compared with a welding blind plate, the blind plate does not damage metal pipes, needs less labor, is high in efficiency and low in labor intensity, can be used for regions which are not suitable for welding to do pressing work, is suitable for the pressure test blind plate parts of thin-wall stainless steel pipes such as LNG (liquefied natural gas) and the like, is not damaged, can be repeatedly used, and saves cost. Compared with a pressure test plug, the pressure test plug has lower cost, and the range of the test pressure can be properly adjusted and increased according to the bonding area of the outer wall of the pipeline and the blind plate.
Description
Technical Field
The utility model relates to a pipeline pressure testing blind plate especially relates to the pipeline pressure testing in ocean engineering and shipbuilding field is with and non-welding type blind plate.
Background
The pressure pipeline is widely applied, and once the pressure pipeline is broken, a major accident can happen. Particularly, the defective pipeline can leak under the action of load, so that the limit bearing pressure test of the pipeline has great significance for guaranteeing the safety of the pipeline and reducing the economic loss.
Generally, a welding pressure test blind plate or a pressure test plug is used in the pressure test process. The common pressure test blind plate has large welding workload and inconvenient disassembly. In addition, the pipeline pressure test also has the risk of a pressure test blind plate or pressure test plug falling off, and certain potential safety hazard exists.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome current pressure testing blind plate and need welding operation, the pressure testing plug specification shortcoming that the price is various expensive.
In order to solve the technical problem, the utility model discloses a pipeline pressure testing blind plate, including the blind plate body, be fixed with at least two-layer sleeve on the terminal surface of blind plate body. The sleeve is fixed with the pipeline through sealant. Multiple layers of sleeves are provided to reduce the gauge of the tailored blind. The distance between the sleeves is based on the convenience of smearing the specially selected sealing glue.
In the technical scheme, the side edge of the blind plate body is provided with the connecting hole.
Among the above-mentioned technical scheme, still include the pipe strap, the protection chain is connected to the pipe strap, the other end of protection chain is fixed with the connecting hole through the connecting pin. This design prevents that the blind plate pine from taking off when the pressure testing, leads to the casualties.
In the technical scheme, the inner wall of the sleeve is a sealant smearing region, and the contact surface of the blind plate body and the end face of the pipeline is also the sealant smearing region.
The utility model discloses a pipeline pressure testing blind plate has following advantage:
1. compared with a welding blind plate, the pressure test blind plate has the advantages of no damage to metal pipes, less labor consumption, high efficiency and low labor intensity, can be used for pressing in areas unsuitable for welding, is suitable for pressure test blind plates of thin-wall stainless steel pipes such as LNG (liquefied natural gas) and the like, can be repeatedly used, and saves cost.
2. Compared with a pressure test plug, the pressure test plug has lower cost, and the range of the test pressure can be properly adjusted and increased according to the bonding area of the outer wall of the pipeline and the blind plate.
Drawings
Fig. 1 is a structural diagram of a pipeline pressure test blind plate in a use state.
Fig. 2 is a partial structure view of a blind plate body.
Fig. 3 is a structure view of a reinforcing part of a blind plate body.
FIG. 4 is a view showing a structure of a part of a piping process.
Detailed Description
As shown in fig. 1 to 4, according to the specification of the pipeline 3, a sleeve 6 with a proper specification on the blind plate body 1 is selected to be sleeved on the end part of the pipeline 3, metal welding sealant is firstly coated on the end surface 13 and the outer surface 12 of the pipeline 3 before sleeving, and simultaneously metal sealant is also coated on the inner wall area 7 of the sleeve and the end surface contact surface 8 of the blind plate body 1 and the pipeline. The sleeve 6 is sleeved on the pipeline 3, and the pressure test pipeline 3 is rotated to ensure that the paste glue between the pipeline 3 and the pressure test blind plate body 1 and the sleeve 6 is evenly smeared. And inserting a connecting pin 9 at one end of a protection chain 10 into the connecting hole 5 on the blind plate body 1, and tightly hooping a pipe clamp 11 connected with the other end of the protection chain 10 on the pipeline 3 to finish fixing. The metal sealing glue is selected from metal welding sealing glue with the use temperature of-25 ℃ to 250 ℃.
The maximum bearing pressure of the pressure test blind plate is determined by checking the shearing force which can be borne by the glue and calculating the cross section of the pipeline and the contact area between the outer diameter of the pipeline and the pressure test blind plate. The pulling force of the glue on the pressure test blind plate is calculated through the shearing force of the glue and the contact area of the pipeline and the pressure test blind plate, if the pulling force of the glue is larger than the pushing force of a medium on the blind plate, the pressure test blind plate can be used for pressure test, and the pulling force of the glue can be set to be 1.5 times of the pushing force of the medium for safety.
Different types of glue can be selected according to actual conditions in the operation process.
The use steps of the pipeline pressure test blind plate are as follows.
1. And calculating the thrust of the pipeline medium to the blind plate.
2. And calculating the pulling force of the glue on the blind plate.
3. And determining that the pulling force of the glue is 1.5 times greater than the pushing force of the medium to the blind plate.
4. And determining the gluing length of the pipeline and the minimum length of the blind plate.
5. And cleaning the metal surface and the interior of the blind plate by constructors.
6. And (4) coating glue on the tail end of the pipeline and the insertion surface of the blind plate.
7. The pipeline is slightly rotated to insert the blind plate, and the rotation can make the smearing of the glue more uniform.
8. After insertion, the pressure was maintained for 10 minutes.
9. And (5) placing the mixture on a jig frame for drying.
10. And testing the pressure after water injection.
11. And after the pressure test is finished, heating the pressure test blind plate to 300 ℃ and removing the pressure test blind plate.
12. And cleaning the surface of the pipeline.
13. And (5) recovering the blind plates and putting the blind plates into a warehouse.
Claims (4)
1. Pipeline pressure testing blind plate, including the blind plate body, its characterized in that: at least two layers of sleeves are fixed on the end face of the blind plate body.
2. The pipe pressure test blind plate of claim 1, wherein: and the side edge of the blind plate body is provided with a connecting hole.
3. The pipe pressure test blind plate of claim 2, wherein: the pipe clamp is connected with the protection chain, and the other end of the protection chain is fixed with the connecting hole through the connecting pin.
4. The pipe pressure test blind plate of claim 2, wherein: the inner wall of the sleeve is a sealant smearing region, and the contact surface of the blind plate body and the end face of the pipeline is also the sealant smearing region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423465.9U CN211398987U (en) | 2019-12-30 | 2019-12-30 | Pipeline pressure test blind plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423465.9U CN211398987U (en) | 2019-12-30 | 2019-12-30 | Pipeline pressure test blind plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398987U true CN211398987U (en) | 2020-09-01 |
Family
ID=72224582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423465.9U Active CN211398987U (en) | 2019-12-30 | 2019-12-30 | Pipeline pressure test blind plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398987U (en) |
-
2019
- 2019-12-30 CN CN201922423465.9U patent/CN211398987U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 226000 port industrial zone 3, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee after: Wison Clean Energy Technology Group Co.,Ltd. Country or region after: China Address before: 226009 Jianghai Road 189, Nantong Economic and Technological Development Zone, Nantong City, Jiangsu Province Patentee before: WISON(NANTONG) HEAVY INDUSTRY Co.,Ltd. Country or region before: China |