CN212904606U - Ray detection heat insulation device for high-temperature in-service pipeline - Google Patents
Ray detection heat insulation device for high-temperature in-service pipeline Download PDFInfo
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- CN212904606U CN212904606U CN202022328674.8U CN202022328674U CN212904606U CN 212904606 U CN212904606 U CN 212904606U CN 202022328674 U CN202022328674 U CN 202022328674U CN 212904606 U CN212904606 U CN 212904606U
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- heat insulation
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- asbestos
- image quality
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Abstract
The utility model relates to a high temperature of nondestructive test technical field is at labour pipeline radiographic testing heat-proof device, cover the heat insulating part at the pipeline outer wall including the image quality meter with pasting, the image quality meter pastes on the heat insulating part during the detection, the diolame of image quality meter sets up to transparent heat-resisting plastic envelope, the heat insulating part includes a pair of asbestos insulating layer, and a middle insulating layer of clamp between two asbestos insulating layers, one of them asbestos insulating layer laminating pipeline outer wall, another asbestos insulating layer is in the outside, the asbestos insulating layer in the attached outside of image quality meter, the thickness of middle insulating layer is less than the thickness of every asbestos insulating layer, and middle insulating layer sets up to coefficient of heat conduction and is less than asbestos insulating layer structure. The high temperature that can prevent the pipeline from distributing when detecting is seared, is damaged the image quality meter, can reduce the influence of insulating layer to the ray simultaneously again, reduces the influence to the film.
Description
Technical Field
The utility model relates to a nondestructive test technical field particularly, is a high temperature is at labour pipeline radiographic testing heat-proof device.
Background
When in-service high-temperature steam pipeline detection is carried out, a method of increasing a heat insulation layer is generally adopted to protect the film from high-temperature damage, but the melting point of the image quality meter is low due to the adoption of common plastics, so that the plastic wrapped on the outer layer of the image quality meter is easily melted due to high-temperature roasting, the image quality meter is damaged, and even the melted plastic can cause damage to a camera bag filled with the film, the film is photosensitive, and waste films are generated. Moreover, if the thickness of the heat insulation layer is too thick, rays are affected by the heat insulation layer, the definition of the negative is reduced, and if the heat insulation layer is too thin, the film and the image quality meter are damaged by heat radiation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high temperature is at labour pipeline ray detection heat-proof device to solve the problem that exists among the prior art.
The purpose of the utility model is realized like this: the high-temperature in-service pipeline radiographic inspection heat insulation device comprises an image quality meter and a heat insulation piece attached to the outer wall of a pipeline, wherein the image quality meter is attached to the heat insulation piece during inspection;
the coating film of the image quality meter is a transparent heat-resistant plastic coating film;
the heat insulating part comprises a pair of asbestos heat insulating layers and an intermediate heat insulating layer sandwiched between the two asbestos heat insulating layers, wherein one asbestos heat insulating layer is attached to the outer wall of the pipeline, the other asbestos heat insulating layer is positioned on the outer side, the asbestos heat insulating layer on the outer side of the image quality meter is attached to the intermediate heat insulating layer, the thickness of the intermediate heat insulating layer is smaller than that of each asbestos heat insulating layer, and the heat conductivity coefficient of the intermediate heat insulating layer is smaller than that of each asbestos heat insulating layer.
Further, the middle heat insulation layer is set to be a nano aerogel heat insulation felt.
Further, a dark bag and an intensifying screen are clamped between the image quality meter and the heat insulation piece in sequence.
Further, the thickness of nanometer aerogel heat preservation felt is 4 mm.
Further, the thickness of each asbestos thermal insulation layer is 12 mm.
Further, the heat-resistant plastic coating film of the image quality meter is arranged as a polytetrafluoroethylene film.
The beneficial effects of the utility model reside in that: because the envelope of the image quality meter and the heat insulation piece attached to the outer wall of the pipeline are improved, the high temperature emitted by the pipeline during detection can be prevented from being roasted and damaging the image quality meter, the influence of the heat insulation layer on rays can be reduced, the influence on a negative film is reduced, the application range of the image quality meter is expanded, and the service life of the image quality meter is prolonged.
Drawings
Fig. 1 is a schematic diagram of an image quality instrument.
Fig. 2 is a schematic view of the present invention.
In the figure, 1 thermal-resistant plastic envelope, 2 rubidium magnet, 3 image quality instruments, 4 dark bags, 5 intensifying screens, 6 nanometer aerogel heat preservation felts, 7 asbestos heat insulation layers and 8 pipelines.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-2 and the specific embodiments.
As shown in figures 1-2, the high-temperature in-service pipeline radiographic inspection heat insulation device comprises an image quality meter 3 and a heat insulation piece attached to the outer wall of a pipeline 8, wherein the image quality meter 3 is attached to the heat insulation piece during inspection.
The envelope of the image quality meter 3 is a transparent heat-resistant plastic envelope 1.
The heat insulation piece comprises a pair of asbestos heat insulation layers 7 and an intermediate heat insulation layer sandwiched between the two asbestos heat insulation layers 7, wherein one asbestos heat insulation layer 7 is attached to the outer wall of the pipeline 8, the other asbestos heat insulation layer 7 is positioned on the outer side, the image quality meter 3 is attached to the asbestos heat insulation layer 7 on the outer side, the thickness of the intermediate heat insulation layer is smaller than that of each asbestos heat insulation layer 7, and the heat conductivity coefficient of the intermediate heat insulation layer is smaller than that of the asbestos heat insulation layers 7 (0.22w/(m DEG C)), so that cost is saved.
The middle heat insulation layer is set to be a nano aerogel heat insulation felt 6, the heat conductivity coefficient lambda is 0.019w/(m x ℃), and the heat insulation effect of the nano aerogel heat insulation felt 6 is better than that of the asbestos heat insulation layer 7.
The dark bag 4 and the intensifying screen 5 are clamped between the image quality meter 3 and the heat insulation piece from outside to inside in sequence, so that the detection sensitivity is improved, and the detection time is shortened.
The thickness of the nano aerogel heat preservation felt 6 is 4 mm.
The thickness of each asbestos insulation layer 7 is 12 mm.
The heat-resistant plastic envelope 1 of the image quality meter 3 is a polytetrafluoroethylene film, so that the heat-resistant effect is better, and other heat-resistant plastic films can be considered.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and such changes or improvements should fall within the protection scope of the present invention.
Claims (6)
1. High temperature pipeline ray detection heat-proof device in active service, including look like matter meter (3) and paste the heat insulating part of covering at pipeline (8) outer wall, during the detection look like matter meter (3) and paste on heat insulating part, its characterized in that:
the envelope of the image quality meter (3) is a transparent heat-resistant plastic envelope (1);
the heat insulation piece comprises a pair of asbestos heat insulation layers (7) and an intermediate heat insulation layer sandwiched between the two asbestos heat insulation layers (7), wherein one asbestos heat insulation layer (7) is attached to the outer wall of the pipeline (8), the other asbestos heat insulation layer (7) is located on the outer side, the asbestos heat insulation layer (7) on the outer side of the image quality meter (3) is attached to the intermediate heat insulation layer, the thickness of the intermediate heat insulation layer is smaller than that of each asbestos heat insulation layer (7), and the heat conductivity coefficient of the intermediate heat insulation layer is smaller than that of the asbestos heat insulation layer (7).
2. The radiographic testing and heat insulating device for high-temperature in-service pipelines according to claim 1, characterized in that: the middle heat insulation layer is set to be a nano aerogel heat insulation felt (6).
3. The radiographic testing and heat insulating device for high-temperature in-service pipelines according to claim 1, characterized in that: a dark bag (4) and an intensifying screen (5) are clamped between the image quality meter (3) and the heat insulation piece in sequence.
4. The radiographic testing and heat insulating device for high-temperature in-service pipelines according to claim 2, characterized in that: the thickness of the nano aerogel heat preservation felt (6) is 4 mm.
5. The radiographic testing and heat insulating device for high-temperature in-service pipelines according to claim 4, characterized in that: the thickness of each asbestos heat insulation layer (7) is 12 mm.
6. The radiographic testing and heat insulating device for high-temperature in-service pipelines according to claim 1, characterized in that: the heat-resistant plastic coating (1) of the image quality meter (3) is a polytetrafluoroethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328674.8U CN212904606U (en) | 2020-10-19 | 2020-10-19 | Ray detection heat insulation device for high-temperature in-service pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328674.8U CN212904606U (en) | 2020-10-19 | 2020-10-19 | Ray detection heat insulation device for high-temperature in-service pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212904606U true CN212904606U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022328674.8U Active CN212904606U (en) | 2020-10-19 | 2020-10-19 | Ray detection heat insulation device for high-temperature in-service pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212904606U (en) |
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2020
- 2020-10-19 CN CN202022328674.8U patent/CN212904606U/en active Active
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