CN220396760U - Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops - Google Patents
Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops Download PDFInfo
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- CN220396760U CN220396760U CN202321983347.3U CN202321983347U CN220396760U CN 220396760 U CN220396760 U CN 220396760U CN 202321983347 U CN202321983347 U CN 202321983347U CN 220396760 U CN220396760 U CN 220396760U
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- thermal power
- spring
- pipeline
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- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Supports For Pipes And Cables (AREA)
Abstract
The utility model provides a device for preventing a limit pipe clamp of four vertical pipelines of a thermal power plant from falling off. The utility model comprises a supporting piece and a spring hanging bracket, wherein the supporting piece is arranged above a riser limiting pipe clamp, the top end of the spring hanging bracket is connected with the supporting piece, and the bottom end of the spring hanging bracket is connected with the riser limiting pipe clamp. The spring hanging bracket and the pipeline are integrated, so that the expansion of the pipeline is not affected, the displacement of the limiting pipe clamp sliding downwards is ensured to be within a preset range, and the limiting pipe clamp cannot be separated from the limiting frame, and therefore the limiting pipe clamp cannot fail in operation. The reconstruction cost of each pipe clamp is low, and the reconstruction cost is saved.
Description
Technical Field
The utility model relates to the technical field of pipeline installation, in particular to a device for preventing a limit pipe clamp of four vertical pipelines of a thermal power plant from falling off.
Background
The four pipelines of the thermal power plant comprise a main steam pipeline, a hot reheat steam pipeline, a cold reheat steam pipeline and a high-pressure water supply pipeline. In order to ensure that the stress of each part of the pipeline is in a safe range during operation, the displacement of the pipeline in a certain direction can be limited during design, a limiting pipe clamp is usually arranged on the pipeline, a limiting frame is arranged on a peripheral steel beam, and the expansion displacement of the pipeline is limited through the clearance between the pipe clamp and the limiting frame. The pipe clamps are generally fastened on the pipeline through bolts, and the pipe clamps installed on the vertical pipeline are loosened in operation due to frequent start and stop of the unit under the alternating action of cold and heat, so that friction force between the pipe clamps and the pipeline is reduced, and the limiting pipe clamps drop downwards. The limiting pipe clamp is blocked in the adjacent limiting frame when the limiting pipe clamp fails after being separated from the limiting frame, so that the pipe clamp is blocked from displacing towards the designed expansion direction, larger stress is generated during operation, and serious potential safety hazards exist.
Currently, the common means for solving the above technical problems include the following two methods: 1. the pipe clamp is additionally arranged below the limiting pipe clamp, and the limiting pipe clamp is prevented from falling off by increasing friction force with a pipeline. The problem cannot be thoroughly solved by this method, and as the running time increases, the newly added limiting pipe clamps still have the risk of slipping down. And the limiting pipe clamp is required to be made of the same material as the pipeline to meet the requirement of the operating temperature, and the high-alloy pipe clamp is high in manufacturing cost. 2. And a limiting block is welded on the pipeline to prevent the pipe clamp from sliding downwards. With the increase of the running time of the unit, the pipeline has certain displacement, and the limiting block can not correspond to the original limiting frame, so that the limiting block is not welded during the design of the pipeline. In addition, the limiting block is welded on site, the heat treatment effect is poor, the welding quality cannot be guaranteed, and the base metal is possibly damaged.
Disclosure of Invention
According to the technical problem, the device for preventing the limiting pipe clamps of the vertical pipelines of the four pipelines of the thermal power plant from falling off is provided. The utility model adopts the following technical means:
the utility model provides a device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops, includes support piece and spring hanger, support piece sets up in spacing pipe clamp top of riser, the top of spring hanger with support piece links to each other, the bottom of spring hanger links to each other with spacing pipe clamp of riser.
Further, the number of the spring hangers is at least two.
Further, the spring hanger comprises a spring, and a first hanger rod and a second hanger rod which are arranged on two sides of the spring, wherein the top end of the first hanger rod is connected with the supporting piece, and the bottom end of the second hanger rod is connected with the riser limiting pipe clamp.
Further, the spring has a predetermined elasticity such that the maximum compression displacement of the spring does not exceed the maximum expansion of the pipe between the support and the riser pipe clamp.
Further, the supporting piece is arranged at a position 3-6 meters above the riser limiting pipe clamp.
Further, the support comprises a tube clamp of an elastic or rigid hanger, which is fixed in a preset position by a positioning block and a bolt.
The spring hanging bracket and the pipeline are integrated, so that the expansion of the pipeline is not affected, the displacement of the limiting pipe clamp sliding downwards is ensured to be within a preset range, and the limiting pipe clamp cannot be separated from the limiting frame, and therefore the limiting pipe clamp cannot fail in operation. The reconstruction cost of each pipe clamp is low, and the reconstruction cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a first boom; 2. a spring; 3. a second boom; 4. a support; 5. riser spacing pipe clamp.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the embodiment of the utility model discloses a device for preventing a limit pipe clamp of four large pipes of a thermal power plant from falling off, which comprises a supporting piece 4 and a spring hanger, wherein the supporting piece is arranged above a riser limit pipe clamp 5, the top end of the spring hanger is connected with the supporting piece, and the bottom end of the spring hanger is connected with the riser limit pipe clamp.
The number of the spring hangers is at least two.
The spring hanger comprises a spring 2, and a first hanger rod 1 and a second hanger rod 3 which are arranged on two sides of the spring, wherein the top end of the first hanger rod is connected with the supporting piece, and the bottom end of the second hanger rod is connected with the riser limiting pipe clamp.
The spring has a predetermined elasticity such that the maximum compression displacement of the spring does not exceed the maximum expansion of the conduit between the support and the riser limit clamp.
The supporting piece is arranged at a position 3-6 meters above the riser limiting pipe clamp.
The support comprises a pipe clamp of an elastic or rigid hanger, and the pipe clamp is fixed at a preset position through a positioning block and a bolt.
As an alternative embodiment, the pipe clamps of the elastic or rigid hanging frame are arranged at a distance of 3-6 meters above each riser limiting pipe clamp, and are fixed on the pipeline through positioning blocks and bolts, so that the situation of falling off does not occur. The upper fixed pipe clamp and the lower limit pipe clamp are connected through the spring hanger, the maximum expansion value of the pipe is calculated according to the relative distance between the two pipe clamps, a proper spring is selected, the spring is fully relaxed during cold state installation, and the maximum compression displacement of the spring is limited within 50mm during expansion and extension of the hot state pipeline. The spring hanger and the pipeline are integrated, so that the expansion of the pipeline is not affected, the displacement of the limiting pipe clamp sliding downwards is ensured to be within 50mm, and the limiting pipe clamp cannot be separated from the limiting frame, so that the limiting pipe clamp cannot fail in operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops, its characterized in that includes: the supporting piece is arranged above the riser limiting pipe clamp, the top end of the spring hanging frame is connected with the supporting piece, and the bottom end of the spring hanging frame is connected with the riser limiting pipe clamp.
2. The apparatus for preventing falling off of four large vertical pipe limit clamps of thermal power plant according to claim 1, wherein the number of the spring hangers is at least two.
3. The device for preventing falling off of four large-pipeline vertical pipeline limiting pipe clamps of a thermal power plant according to claim 1, wherein the spring hanger comprises a spring, a first hanging rod and a second hanging rod which are arranged on two sides of the spring, the top end of the first hanging rod is connected with the supporting piece, and the bottom end of the second hanging rod is connected with the vertical pipe limiting pipe clamps.
4. The apparatus for preventing falling off of four large pipe vertical pipe limit clamps of thermal power plant according to claim 1, wherein the springs have a preset elasticity such that a maximum compression displacement amount of the springs does not exceed a maximum expansion amount of the pipe between the support and the riser limit clamps.
5. The apparatus for preventing falling off of four large-pipeline vertical pipeline limiting pipe clamps of thermal power plant according to claim 1, wherein the supporting member is arranged at a position 3-6 m above the riser limiting pipe clamps.
6. The apparatus for preventing falling off of four large vertical pipe limit clamps of thermal power plant according to any one of claims 1 to 5, wherein the supporting member comprises a clamp of an elastic or rigid hanger, and the clamp is fixed at a predetermined position by a positioning block and a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983347.3U CN220396760U (en) | 2023-07-26 | 2023-07-26 | Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983347.3U CN220396760U (en) | 2023-07-26 | 2023-07-26 | Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220396760U true CN220396760U (en) | 2024-01-26 |
Family
ID=89615828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321983347.3U Active CN220396760U (en) | 2023-07-26 | 2023-07-26 | Device for preventing spacing pipe clamp of four big pipelines vertical pipeline of thermal power plant drops |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220396760U (en) |
-
2023
- 2023-07-26 CN CN202321983347.3U patent/CN220396760U/en active Active
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