CN210802792U - Nuclear power station stainless steel container leak detection system - Google Patents
Nuclear power station stainless steel container leak detection system Download PDFInfo
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- CN210802792U CN210802792U CN201922369260.7U CN201922369260U CN210802792U CN 210802792 U CN210802792 U CN 210802792U CN 201922369260 U CN201922369260 U CN 201922369260U CN 210802792 U CN210802792 U CN 210802792U
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Abstract
The utility model discloses a nuclear power station stainless steel container leak hunting system, stainless steel container have a plurality of welding seams, detain in every welding seam department of stainless steel container and establish shaped steel, every shaped steel forms a branch road that covers corresponding welding seam, and all branch roads communicate each other to form and examine the leakage net, still are in including the intercommunication examine the person in charge of leakage net low level. An object of the utility model is to provide a nuclear power station stainless steel container leak hunting system to solve among the prior art nuclear power station stainless steel container's leak hunting system and only be applicable to the stainless steel container of back laminating construction, can't be applicable to the problem of the work progress of modularization, earlier laminating, realize that stainless steel container leak hunting system can be applicable to the purpose of back laminating and earlier laminating construction simultaneously.
Description
Technical Field
The utility model relates to a nuclear power station field, concretely relates to nuclear power station stainless steel container leak hunting system.
Background
In each system of a nuclear power station, a stainless steel container for storing liquid water containing various solutes is required to be arranged in the processes of nuclear fuel transportation and operation, material changing, heat exchange, cooling and flushing, the stainless steel container is lined on a main building structure and used as a lining of a room, the shape, the structure and the rule of the stainless steel container are different, the stainless steel container is provided with a closed container and an open container, the sealing requirement of the container is high, the leakage detection and the ray detection are required to be carried out on a splicing welding line of the container, and the watertight and hydraulic tests are required to be carried out at the same time, so that the zero leakage. During watertight and hydrostatic test, leak detection is needed through the leak detection system, and whether leakage exists in the container or not can be judged through the leak detection system in the later operation process, so that the leakage of the container is prevented from harming equipment and personal safety. The leak detection system is located on the concrete side of the vessel and is permanently concealed within the concrete structure while being welded to the vessel.
At present, leak detection systems of stainless steel containers of nuclear power stations at home and abroad are basically consistent, steel pipes are adopted for connection, the stainless steel containers are collected into a main pipe, and the tightness of the containers is judged by checking whether water flows out of the main pipe. However, the leak detection system is only suitable for stainless steel containers constructed by adopting a post-sticking method (firstly pouring concrete and then installing the containers), and the applicability of the leak detection system is gradually enlarged as the modularized construction technology becomes an industry trend.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nuclear power station stainless steel container leak hunting system to solve among the prior art nuclear power station stainless steel container's leak hunting system and only be applicable to the stainless steel container of back laminating construction, can't be applicable to the problem of the work progress of modularization, earlier laminating, realize that stainless steel container leak hunting system can be applicable to the purpose of back laminating and earlier laminating construction simultaneously.
The utility model discloses a following technical scheme realizes:
the utility model provides a nuclear power station stainless steel container leak hunting system, the stainless steel container has a plurality of welding seams, detains at every welding seam department of stainless steel container and establishes shaped steel, and every shaped steel forms a branch road that covers corresponding welding seam, and all branch roads communicate each other and constitute the leak hunting net, still including the intercommunication be in the person in charge of leak hunting net low level.
Aiming at the problem that the leak detection system of the stainless steel container of the nuclear power station in the prior art is only suitable for the stainless steel container constructed by the post-attaching method and cannot be suitable for the construction process of modularization and the first-attaching method, the utility model provides a leak detection system of the stainless steel container of the nuclear power station, wherein the stainless steel container is formed by splicing a plurality of plates, welding seams are inevitably formed at the splicing positions, profile steel is buckled at each welding seam, i.e. the section steel is covered outside the welding seam, each section steel forms a branch covering the corresponding welding seam, the branch is formed by the corresponding section steel and the stainless steel container shell, all the branches are mutually communicated to form a leakage detecting net, and the lower position of the leakage detecting net is communicated with the main pipe, thus, when the stainless steel container is subjected to watertight and hydrostatic tests or is in formal operation, a worker can judge whether the quality problem exists in the welding line of the stainless steel container by observing whether the main pipe has leakage water flowing out. This application compares in prior art and uses the steel pipe as the circulation passageway of leak hunting system purely, lead to being applicable to only adopting the construction method of post-sticking method, use the mode of shaped steel lock welding seam, form flow channel with the cooperation of stainless steel container body jointly, consequently, not only can be applicable to post-sticking method construction, can also prefabricate shaped steel in advance with the panel of stainless steel container shell in advance when dispatching from the factory, form modular stainless steel container panel, it can directly splice on-the-spot, and then be applicable to earlier the construction process of sticking method (pouring concrete after installing the container module earlier), thereby realize the leak hunting function to nuclear power station stainless steel container in the modularization construction method. In conclusion, the method and the device are suitable for post-pasting and first-pasting construction processes, modular construction of the stainless steel container of the nuclear power station is promoted, construction environment is effectively improved, construction efficiency is improved, and installation period is saved.
Furthermore, the section steel is channel steel and/or angle steel. And (4) selecting channel steel and angle steel according to the specific shape of the welding seam and the specific conditions on site to arrange. No matter using channel steel or angle steel, the concave surface faces the direction of the stainless steel container shell to achieve sufficient buckling.
Further, the main pipe is communicated with a branch on the bottom plate of the stainless steel container. Is beneficial to collecting the leakage water by using gravity.
Furthermore, the stainless steel container also comprises a branch pipe, wherein the branch pipe is connected with a branch on the bottom plate of the stainless steel container, and the main pipe is communicated with the branch pipe. The branch pipe is convenient for leading water flow out to the outer area of the concrete structure of the container, and the branch pipe is connected with the main pipe outside the concrete structure, so that the use flexibility and operability of the main pipe are improved.
Further, still include the collection water box, the collection water box is connected on the branch pipe, be responsible for and collect water box bottom intercommunication. This scheme is applicable to the container bottom plate and blocks and can't provide for the staff and use under the condition of being responsible for the welding station, through connecting the water-collecting box in advance, will be responsible for at the scene with the water-collecting box weld can to overcome because the blockking of container bottom leads to the unable direct weld of staff to be responsible for the problem.
Further, all the branches on the wall plate of the stainless steel container jointly form a wall plate branch; all the branches on the bottom plate of the stainless steel container form bottom plate branches; the wall plate branch and the bottom plate branch are communicated through a node cavity, and the node cavity is located at any weld joint of the bottom plate of the stainless steel container. The wallboard branch road converges with the bottom plate branch road in node cavity department, is convenient for collect the dew in unison.
The main pipe is communicated with the node cavity, or the main pipe is communicated with the node cavity through a branch pipe.
Further, the section steel is welded on the outer wall of the stainless steel container.
A nuclear power station stainless steel container leak detection method is characterized in that whether leakage water flows out of a main pipe or not is observed during watertight and hydrostatic tests or formal operation of a stainless steel container: if leakage water flows out of the main pipe, the quality of the welding line of the stainless steel container is poor.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a nuclear power station stainless steel container leak hunting system, compare in prior art and use the circulation passageway of steel pipe as leak hunting system purely, lead to being applicable to only adopting the construction methods of back subsides method, use the mode of shaped steel lock welding seam, form flow channel jointly with the cooperation of stainless steel container body, consequently not only can be applicable to the construction of back subsides method, can also just prefabricate shaped steel in advance with the panel of stainless steel container shell when dispatching from the factory, form modular stainless steel container panel, on-the-spot direct concatenation can, and then be applicable to earlier the construction of subsides method, thereby realize the leak hunting function to nuclear power station stainless steel container in the modularization construction method.
2. The utility model relates to a nuclear power station stainless steel container leak hunting system, this application can be applicable to back laminating and first laminating construction technology simultaneously, has promoted the modularization construction of nuclear power station stainless steel container, effectively improves construction environment, improvement construction efficiency through the modularization construction, practices thrift installation period.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
the water collecting box comprises 1-a stainless steel container wall plate, 2-angle steel, 3-channel steel, 4-node cavities, 5-branch pipes, 6-a water collecting box, 7-a main pipe and 8-a stainless steel container wall plate.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1:
the utility model provides a nuclear power station stainless steel container leak hunting system, the stainless steel container has a plurality of welding seams, detains at every welding seam department of stainless steel container and establishes shaped steel, and every shaped steel forms a branch road that covers corresponding welding seam, and all branch roads communicate each other and constitute the leak hunting net, still including the intercommunication be in the main pipe 7 of leak hunting net low level.
The mode that this embodiment used shaped steel lock welding seam forms flow channel jointly with the cooperation of stainless steel container body, consequently not only can be applicable to the construction of back laminating, can also just prefabricate shaped steel in advance with the panel of stainless steel container shell in advance when dispatching from the factory, form modular stainless steel container panel, on-the-spot directly splice can, and then be applicable to the construction process of pasting earlier to realize the leak hunting function to nuclear power station stainless steel container in the modularization construction method. The embodiment ensures the realization of the leakage function of the stainless steel container of the nuclear power station in the modularized construction method and the traditional construction method, promotes the modularized construction of the stainless steel container of the nuclear power station, improves the construction environment, improves the construction efficiency and saves the installation period.
Example 2:
a nuclear power station stainless steel container leak detection system is shown in figure 1, and on the basis of embodiment 1, section steel is channel steel 3 and angle steel 2, and the section steel is selected according to actual conditions. The main pipe 7 is communicated with a branch on the bottom plate of the stainless steel container. The stainless steel container is characterized by further comprising a branch pipe 5, wherein the branch pipe 5 is connected with a branch on a bottom plate of the stainless steel container, and the main pipe 7 is communicated with the branch pipe 5. Still include the box 6 that catchments, the box 6 that catchments is connected on branch pipe 5, be responsible for 7 and the box 6 bottom intercommunication that catchments. All the branches on the wall plate of the stainless steel container jointly form a wall plate branch; all the branches on the bottom plate of the stainless steel container form bottom plate branches; the wall plate branch is communicated with the bottom plate branch through a node cavity 4, and the node cavity 4 is located at any welding seam of the bottom plate of the stainless steel container. The main pipe 7 is communicated with the node cavity 4 through a branch pipe 5. The section steel is welded on the outer wall of the stainless steel container. In fig. 1, for convenience of illustration, the stainless steel container wall plate 1 and the stainless steel container wall plate 8 are subjected to perspective processing.
In this embodiment, after the wall plate branch and the bottom plate branch are converged, the bottom plate is provided with the branch pipe 5, the main pipe 7 and the water collecting box 6, and the branch pipe 5, the main pipe 7 and the water collecting box 6 are composed of steel pipes and are connected in a three-way structure. All the leak detection components, namely the channel steel 3 and the angle steel 2, are selected according to a specific first-pasting construction method and a specific second-pasting construction method, and proper component types are selected on the premise that a sealed operation space is ensured to be accessible. In practical application, angle steel 2, channel-section steel 3 all arrange according to the demand, all angle steel 2, channel-section steel 3 of being connected with stainless steel container wallboard 1 and stainless steel container wallboard 8 pass through welded connection, have the sealed welding that carries on of sealed requirement, but not sealed requirement can by fixed with spot welding, on the wallboard each regional leak hunting branch road passageway converge after integrative again with the branch road intercommunication on the bottom plate, whether leak through observing the person in charge 7 and judge this regional welding seam position and have the leakage.
Preferably, this embodiment is used for in the subsides method modularization work progress earlier, carries out the makeup work of stainless steel container wallboard 1 and stainless steel container wallboard 8 earlier, before the makeup welding or after will be as each angle steel 2, channel-section steel 3 of leak hunting component install in the welding seam position, the back rib of container module is assembled again after angle steel 2, channel-section steel 3 erection joint are accomplished, the module preparation is dispatched from the factory and is installed and take one's place, and after the pouring of major structure concrete is accomplished, install branch pipe 5, header box 6 and be responsible for 7 on stainless steel container wallboard 8, branch pipe 5 is connected with node cavity 4 or channel-section steel 3 on the bottom plate. After the stainless steel container is built, during watertight and hydrostatic tests or formal operation, if leakage occurs at the position of a welding line, leaked water can flow to the branch pipe 5 through the corresponding branch pipe and finally flows out through the main pipe 7, whether the leaked water flows out from the main pipe 7 or not can be observed, and if the leaked water occurs, the quality problem exists in the welding line of the stainless steel container. Therefore, through the leak detection system in this embodiment, not only can realize the modularization construction of stainless steel container, can effectively monitor whether the container welding seam has quality problems simultaneously.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a nuclear power station stainless steel container leak hunting system, the stainless steel container has a plurality of welding seams, and its characterized in that detains at every welding seam department of stainless steel container and establishes shaped steel, and every shaped steel forms a branch road that covers corresponding welding seam, and all branch roads communicate each other and constitute the leak hunting net, still including the intercommunication be in the main pipe of leak hunting net low level.
2. The stainless steel vessel leak detection system for nuclear power plants as claimed in claim 1, wherein said section steel is channel steel and/or angle steel.
3. The nuclear power plant stainless steel vessel leak detection system of claim 1, wherein the main pipe communicates with a branch on a floor of the stainless steel vessel.
4. The nuclear power plant stainless steel container leak detection system according to claim 1, further comprising a branch pipe connected to a branch on a bottom plate of the stainless steel container, and the main pipe is communicated with the branch pipe.
5. The nuclear power plant stainless steel container leak detection system according to claim 4, further comprising a water collection box, wherein the water collection box is connected to the branch pipe, and the main pipe is communicated with the bottom of the water collection box.
6. The stainless steel vessel leak detection system for nuclear power plants as claimed in any one of claims 1 to 5, wherein all branches on the wall plate of the stainless steel vessel together constitute a wall plate branch; all the branches on the bottom plate of the stainless steel container form bottom plate branches; the wall plate branch and the bottom plate branch are communicated through a node cavity, and the node cavity is located at any weld joint of the bottom plate of the stainless steel container.
7. The nuclear power plant stainless steel vessel leak detection system of claim 6, wherein the main pipe is in communication with the node cavity.
8. The nuclear power plant stainless steel container leak detection system according to claim 7, wherein the main pipe is communicated with the node cavity through a branch pipe.
9. The nuclear power plant stainless steel container leak detection system according to claim 1, wherein the section steel is welded to the outer wall of the stainless steel container.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922369260.7U CN210802792U (en) | 2019-12-25 | 2019-12-25 | Nuclear power station stainless steel container leak detection system |
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| CN201922369260.7U CN210802792U (en) | 2019-12-25 | 2019-12-25 | Nuclear power station stainless steel container leak detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887609A (en) * | 2019-12-25 | 2020-03-17 | 中国核工业二四建设有限公司 | Nuclear power station stainless steel container leak detection system and leak detection method thereof |
| CN113062411A (en) * | 2021-03-26 | 2021-07-02 | 深圳中广核工程设计有限公司 | Ultra-large annular concrete stainless steel water tank and manufacturing method thereof |
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2019
- 2019-12-25 CN CN201922369260.7U patent/CN210802792U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887609A (en) * | 2019-12-25 | 2020-03-17 | 中国核工业二四建设有限公司 | Nuclear power station stainless steel container leak detection system and leak detection method thereof |
| CN110887609B (en) * | 2019-12-25 | 2024-06-18 | 中国核工业二四建设有限公司 | Nuclear power station stainless steel container leakage detection system and leakage detection method thereof |
| CN113062411A (en) * | 2021-03-26 | 2021-07-02 | 深圳中广核工程设计有限公司 | Ultra-large annular concrete stainless steel water tank and manufacturing method thereof |
| CN113062411B (en) * | 2021-03-26 | 2022-05-31 | 深圳中广核工程设计有限公司 | Ultra-large annular concrete stainless steel water tank and manufacturing method thereof |
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