CN213576669U - Installation structure of temperature and humidity sensor on outer wall surface of pipeline of nuclear power plant - Google Patents
Installation structure of temperature and humidity sensor on outer wall surface of pipeline of nuclear power plant Download PDFInfo
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- CN213576669U CN213576669U CN202021965772.6U CN202021965772U CN213576669U CN 213576669 U CN213576669 U CN 213576669U CN 202021965772 U CN202021965772 U CN 202021965772U CN 213576669 U CN213576669 U CN 213576669U
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- humidity sensor
- temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure, the mountable is on the steam pipe of neighbouring pipeline outer wall, and it includes: the steam guide pipe upper fixing piece is arranged on the steam guide pipe and is positioned outside the heat insulation layer arranged around the outer wall surface of the pipeline; the temperature and humidity sensor is provided with a temperature and humidity sensor sleeve and a temperature and humidity sensor sleeve connecting piece; the temperature and humidity sensor sleeve connecting piece is provided with a through hole, the fixing piece on the steam guide pipe is correspondingly provided with a nut, and a bolt in threaded connection with the nut is arranged in the through hole. Compared with the prior art, the utility model discloses outer wall temperature and humidity sensor mounting structure convenient to detach and installation of nuclear power plant's pipeline are favorable to later stage operation maintenance, and the installation work can be accomplished at the nuclear power job site, need not in advance at heat preservation welding sensor installation sleeve pipe.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power, more specifically say, the utility model relates to a pipeline outer wall temperature and humidity sensor mounting structure of nuclear power plant.
Background
The nuclear power plant leakage monitoring system is used for monitoring unidentifiable leakage of a main pipeline and a surge pipe in a primary loop coolant system of a reactor, simultaneously monitoring unidentifiable leakage of a main steam pipeline in a containment vessel, and providing early leakage early warning and related leakage information for an operator so as to take proper corrective measures in time in the operation process.
The leakage monitoring of the nuclear power plant mainly comprises temperature and humidity monitoring, condensate flow monitoring, drain pit liquid level monitoring and leakage rate periodic test, wherein the temperature and humidity monitoring is used for monitoring leakage flash gas or main steam at a leakage source, and a temperature and humidity sensor is usually installed near a pipeline welding line for detection by a monitoring means. When the welding seam leaks, a large amount of flash evaporation gas or main steam is filled between the pipeline and the heat insulation layer near the welding seam in a very short time, and the sensor detects that the temperature and the humidity change rapidly, so that the leakage near the welding seam is judged.
Because flash gas or main steam have characteristics such as high temperature, high pressure, if at welding seam department direct mount temperature and humidity sensor, the performance requirement to the sensor is high, consequently, adopt embedding installation pipe to carry out the drainage to detecting steam in the heat preservation usually in the engineering, cool down, step down steam to realize detecting that steam can be monitored by the temperature and humidity sensor who is general or carry out simple adaptability and reform transform.
In the prior art, a temperature and humidity sensor of a leakage monitoring system of a nuclear power plant is connected in a spot welding mode, and a sensor mounting sleeve is connected with a pipeline heat-insulating layer in a spot welding mode. However, the installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline in the prior art has the following defects:
the outer wall of the pipeline heat-insulating layer is very thin, the heat-insulating layer is easily damaged by spot welding connection, and the situation that welding spots fall off easily occurs; after welding is finished, the welding device cannot be disassembled, so that the later-period maintenance and replacement of the instrument are very inconvenient; the sensor and the heat-insulating layer are supplied by different manufacturers respectively, spot welding connection needs to be completed by the heat-insulating layer manufacturer, construction boundaries of the two parts are not clear, and coordination and communication in actual project management are prone to divergence.
In view of the above, it is necessary to provide a temperature and humidity sensor mounting structure on an outer wall surface of a pipeline in a nuclear power plant, which is convenient to detach and mount.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the defects of the prior art are overcome, and the installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline is convenient to detach and install.
In order to realize the utility model discloses the purpose, the utility model provides a nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure installs on the steam pipe of neighbouring pipeline outer wall, and it includes:
the steam guide pipe upper fixing piece is arranged on the steam guide pipe and is positioned outside the heat insulation layer arranged around the outer wall surface of the pipeline; and
the temperature and humidity sensor is provided with a temperature and humidity sensor sleeve and a temperature and humidity sensor sleeve connecting piece;
the temperature and humidity sensor sleeve connecting piece is detachably mounted on the steam guide pipe upper fixing piece.
As the utility model discloses the improvement of the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, temperature and humidity sensor bushing spare pass through threaded connection demountable installation in on the mounting steam pipe.
As the utility model discloses the improvement of the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, be equipped with the through hole on the temperature and humidity sensor bushing spare, it is equipped with the nut to correspond on the mounting on the steam pipe, install in the through hole with nut threaded connection's bolt.
As an improvement of the utility model discloses the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, the nut is welded in advance on the mounting on the steam pipe.
As the utility model discloses the improvement of nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure, the nut is embedded on the mounting on the steam pipe.
As an improvement of the installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline, the steam conduit is provided with a fixing part and is in threaded connection with the steam conduit.
As an improvement of the utility model discloses the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, steam pipe go up the mounting with be equipped with the gasket between the heat preservation.
As the utility model discloses the improvement of the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, steam pipe still is connected with mounting under the steam pipe, mounting is located the heat preservation inboard of the outer wall of pipeline under the steam pipe.
As an improvement of the installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline, the steam conduit lower fixing piece is connected with the steam conduit through threads.
As an improvement of the utility model discloses the outer wall temperature and humidity sensor mounting structure of nuclear power plant's pipeline, steam pipe lower fixing piece with be located and be equipped with the gasket between the heat preservation inboard of the outer wall of pipeline.
As an improvement of the installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline, the steam conduit is kept away from the tail end of the steam conduit by the fixing piece on the steam conduit and the fixing piece under the steam conduit, and the heat preservation is bent.
Compared with the prior art, the utility model discloses outer wall temperature and humidity sensor mounting structure convenient to detach and installation of nuclear power plant's pipeline are favorable to later stage operation maintenance, and the installation work can be accomplished at the nuclear power job site, need not in advance at heat preservation welding sensor installation sleeve pipe.
Drawings
The following combination of drawings and detailed implementation are right the utility model discloses nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure carries out the detailed description, wherein:
fig. 1 is the utility model discloses the outer wall temperature and humidity sensor mounting structure's of nuclear power plant's pipeline schematic diagram.
Detailed Description
In order to make the utility model aim at, technical scheme and technical effect more clear, it is right to combine the figure and detailed implementation mode below in the utility model to make further detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and not limitation.
Referring to fig. 1, the utility model provides a nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure installs on the steam pipe of neighbouring pipeline outer wall, and it includes:
the steam guide pipe upper fixing piece 4 is arranged on the steam guide pipe 1 and is positioned outside the heat insulation layer arranged around the outer wall surface of the pipeline; and
the temperature and humidity sensor 10 is provided with a temperature and humidity sensor sleeve 9 and a temperature and humidity sensor sleeve connecting piece 5;
wherein, the temperature and humidity sensor sleeve connecting piece 5 is detachably arranged on the steam guide pipe upper fixing piece 4.
According to the utility model discloses an embodiment, temperature and humidity sensor bushing piece 5 passes through threaded connection demountable installation on mounting 4 on the steam pipe. For example, a through hole (not labeled) is formed in the temperature and humidity sensor sleeve connecting piece 5, a nut 7 is correspondingly arranged on the steam guide pipe upper fixing piece 4, and a bolt 6 in threaded connection with the nut 7 is installed in the through hole. The screw cap 7 may be pre-welded to the steam conduit upper fixture 4 or may be embedded in the steam conduit upper fixture 4.
According to the utility model discloses an embodiment, steam pipe 1 still is connected with steam pipe lower mounting 2, and steam pipe lower mounting 2 is located the heat preservation inboard of pipeline outer wall. The lower steam guide pipe fixing piece 2 is in threaded connection with the steam guide pipe 1, and the upper steam guide pipe fixing piece 4 is in threaded connection with the steam guide pipe 1.
According to the utility model discloses an embodiment is equipped with gasket 3 on the steam pipe between mounting 4 and the heat preservation, also is equipped with gasket 3 under the steam pipe between mounting 2 and the heat preservation inboard that is located the outer wall of pipeline, and gasket 3 can prevent mounting oppression heat preservation and warp. In order to realize the sealing between the steam guide pipe upper fixing piece 4 and the steam guide pipe lower fixing piece 2 and the heat preservation layer, the tail ends of the steam guide pipe upper fixing piece 4 and the steam guide pipe lower fixing piece 2 far away from the steam guide pipe 1 are bent towards the heat preservation layer.
It is right above combining the utility model discloses embodiment's detailed description can be seen out, for prior art, the utility model discloses outer wall temperature and humidity sensor mounting structure convenient to detach and installation of nuclear power plant's pipeline are favorable to later stage operation maintenance, and the installation can be accomplished at nuclear power job site, need not in advance at heat preservation welding sensor installation sleeve pipe.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (11)
1. The utility model provides a nuclear power plant pipeline outer wall temperature and humidity sensor mounting structure, installs on the steam pipe of neighbouring pipeline outer wall, and it includes:
the steam guide pipe upper fixing piece is arranged on the steam guide pipe and is positioned outside the heat insulation layer arranged around the outer wall surface of the pipeline; and
the temperature and humidity sensor is provided with a temperature and humidity sensor sleeve and a temperature and humidity sensor sleeve connecting piece;
the temperature and humidity sensor sleeve connecting piece is characterized in that the temperature and humidity sensor sleeve connecting piece is detachably mounted on the fixing piece on the steam guide pipe.
2. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 1, wherein the temperature and humidity sensor sleeve connecting piece is detachably installed on the steam guide pipe upper fixing piece through threaded connection.
3. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 2, wherein a through hole is formed in the temperature and humidity sensor sleeve connecting piece, a nut is correspondingly arranged on the fixing piece on the steam guide pipe, and a bolt in threaded connection with the nut is installed in the through hole.
4. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline as claimed in claim 3, wherein the nut is pre-welded to the fixing piece on the steam guide pipe.
5. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline as claimed in claim 3, wherein the nut is embedded in the fixing piece on the steam guide pipe.
6. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 1, wherein the steam guide pipe is in threaded connection with a fixing piece on the steam guide pipe.
7. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 1, wherein a gasket is arranged between the fixing piece on the steam guide pipe and the heat insulation layer.
8. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to any one of claims 1 to 7, wherein the steam guide pipe is further connected with a lower steam guide pipe fixing piece, and the lower steam guide pipe fixing piece is positioned on the inner side of the heat insulation layer on the outer wall surface of the pipeline.
9. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 8, wherein the steam guide pipe lower fixing piece is in threaded connection with the steam guide pipe.
10. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 8, wherein a gasket is arranged between the steam guide pipe lower fixing piece and the inner side of the heat insulation layer on the outer wall surface of the pipeline.
11. The installation structure of the temperature and humidity sensor on the outer wall surface of the nuclear power plant pipeline according to claim 8, wherein the ends, far away from the steam guide pipe, of the upper steam guide pipe fixing piece and the lower steam guide pipe fixing piece are bent towards the heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021965772.6U CN213576669U (en) | 2020-09-10 | 2020-09-10 | Installation structure of temperature and humidity sensor on outer wall surface of pipeline of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021965772.6U CN213576669U (en) | 2020-09-10 | 2020-09-10 | Installation structure of temperature and humidity sensor on outer wall surface of pipeline of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213576669U true CN213576669U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021965772.6U Active CN213576669U (en) | 2020-09-10 | 2020-09-10 | Installation structure of temperature and humidity sensor on outer wall surface of pipeline of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213576669U (en) |
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- 2020-09-10 CN CN202021965772.6U patent/CN213576669U/en active Active
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