CN213982517U - Small branch pipe vibration treatment device for nuclear power plant - Google Patents
Small branch pipe vibration treatment device for nuclear power plant Download PDFInfo
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- CN213982517U CN213982517U CN202022182764.0U CN202022182764U CN213982517U CN 213982517 U CN213982517 U CN 213982517U CN 202022182764 U CN202022182764 U CN 202022182764U CN 213982517 U CN213982517 U CN 213982517U
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- spring
- fixed
- end cover
- small branch
- nuclear power
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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 relates to the technical field of nuclear power maintenance, in particular to a vibration treatment device for a small branch pipe of a nuclear power plant, which comprises a sleeve, wherein a spring mounting groove is processed in the middle of the sleeve, and a spring is arranged in the spring mounting groove; two ends of the spring are respectively welded and fixed with the two spring pressing plates; one end of the sleeve is provided with a movable end cover, and the other end of the sleeve is provided with a fixed end cover; one end of the movable rod extends into the spring mounting groove from the movable end cover of the sleeve and is fixedly welded with a spring pressing plate, and the other end of the movable rod is connected with the small branch pipe; one end of the fixed rod extends into the spring mounting groove from the fixed end cover of the sleeve and is welded and fixed with the other spring pressing plate, and the other end of the fixed rod is welded and fixed with the foundation or other foundation mounting supports. The utility model discloses the device can avoid administering the in-process at the vibration and increase extra pipeline stress for the ramuscule, can reduce ramuscule vibration amplitude, reduces the cracked risk of ramuscule.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to device is administered in vibration of little spinal branch pipe of nuclear power plant.
Background
Due to the structural characteristics of the small branch pipe cantilever of the nuclear power plant, the micro vibration condition of a large pipeline with certain amplitude at the connecting end can be expanded by several times or even tens of times at the far end. And the vibration treatment difficulty is increased due to the characteristics of large number of small branch pipes, large vibration, small pipe diameter, long pipeline, thin pipe wall, easy breakage and the like of the nuclear power plant.
The conventional vibration treatment method is to fix small branch pipes with excessive vibration, but the method is not the primary and secondary treatment, the pipeline is easy to be in a fatigue state and finally broken after the small branch pipes are fixed for a long time, and the pipeline arrangement of each small branch pipe is different, so that the vibration treatment difficulty of the small branch pipes is increased.
At present, a nuclear power plant has no universal treatment device for vibration treatment of small branch pipes.
Disclosure of Invention
An object of the utility model is to provide a device is administered in little branch pipe vibration of nuclear power plant to reduce little branch pipe vibration amplitude.
The technical scheme of the utility model as follows:
the small branch pipe vibration treatment device for the nuclear power plant comprises a sleeve, a spring, a movable rod, a spring pressing plate, a fixed rod, a movable end cover and a fixed end cover;
a spring mounting groove is processed in the middle of the sleeve, and the spring is arranged in the spring mounting groove;
two ends of the spring are respectively welded and fixed with the two spring pressing plates;
one end of the sleeve is provided with a movable end cover, and the other end of the sleeve is provided with a fixed end cover;
one end of the movable rod extends into the spring mounting groove from the movable end cover of the sleeve and is fixedly welded with a spring pressing plate, and the other end of the movable rod is connected with the small branch pipe;
one end of the fixed rod extends into the spring mounting groove from the fixed end cover of the sleeve and is welded and fixed with the other spring pressing plate, and the other end of the fixed rod is welded and fixed with the foundation or other foundation mounting supports.
The movable end cover is a ring plate.
The diameter of a central opening of the movable end cover is larger than that of the movable rod.
The diameter of a central opening of the movable end cover is 1.1-1.3 times of the diameter of the movable rod.
The fixed end cover is welded and fixed with the fixed rod.
The sleeve, the spring, the movable rod, the spring pressing plate, the fixed rod, the movable end cover and the fixed end cover are coaxial.
The greater the small branch tube vibration magnitude, the greater the spring stiffness selected.
The other end of the movable rod is connected with the small branch pipe through a pipe clamp.
According to the actual situation, the vibration problem of the small branch pipes can be effectively solved by arranging the small branch pipes along the pipe system at multiple points.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses the device can avoid administering the in-process at the vibration and increase extra pipeline stress for the ramuscule, can reduce ramuscule vibration amplitude, reduces the cracked risk of ramuscule.
(2) The utility model discloses device easy operation when the small branch pipe takes place the vibration change, as long as change bigger or littleer spring according to actual conditions, can change the damping effect of device, the change of adaptation operating mode.
(3) The device of the utility model is simple in structure, the construction and installation of being convenient for.
Drawings
FIG. 1 is a schematic view A of the abatement apparatus;
FIG. 2 is a schematic view B of the abatement apparatus.
In the figure: 1. a sleeve; 2. a spring; 3. a movable rod; 4. a spring pressing plate; 5. fixing the rod; 6. a movable end cover; 7. and the fixed end is provided with an end cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The device for treating the vibration of the small branch pipe of the nuclear power plant shown in the figures 1-2 comprises a sleeve 1, a spring 2, a movable rod 3, a spring pressing plate 4, a fixed rod 5, a movable end cover 6 and a fixed end cover 7.
A spring installation groove is processed in the middle of the sleeve 1, and the spring 2 is arranged in the spring installation groove. And two ends of the spring 2 are respectively welded and fixed with the two spring pressing plates 4.
One end of the sleeve 1 is provided with a movable end cover 6, and the other end is provided with a fixed end cover 7. The movable end cover 6 is a ring plate, and the diameter of the central opening is 1.1-1.3 times of the diameter of the movable rod 3.
One end of the movable rod 3 extends into the spring mounting groove from the movable end cover 6 of the sleeve 1 and is fixed with a spring pressing plate 4 in a welding mode, and the other end of the movable rod 3 is connected with the small branch pipe through a pipe clamp.
One end of the fixed rod 5 extends into the spring mounting groove from the fixed end cover 7 of the sleeve 1 and is fixed with the other spring pressing plate 4 in a welding mode, and the other end of the fixed rod 5 is fixed with the foundation or other foundation mounting supports in a welding mode.
And the fixed end cover 7 is fixedly welded with the fixed rod 5.
The sleeve 1, the spring 2, the movable rod 3, the spring pressing plate 4, the fixed rod 5, the movable end cover 6 and the fixed end cover 7 are coaxial.
And selecting a spring 2 with a proper model according to the vibration value or vibration amplitude obtained by measuring the small branch pipe, wherein the larger the vibration value or amplitude is, the larger the rigidity of the selected spring 2 is.
When the vibration numerical value or the vibration amplitude of the small branch pipe of the nuclear power plant exceeds the standard, the device is arranged along the small branch pipe piping system at multiple points according to actual conditions, and the vibration problem of the small branch pipe can be effectively solved. If the vibration phenomenon changes due to reasons such as change of working conditions, the model of the spring 2 can be replaced at proper time.
Claims (9)
1. Device is administered in vibration of little spinal canal of nuclear power plant, its characterized in that: comprises a sleeve (1), a spring (2), a movable rod (3), a spring pressure plate (4), a fixed rod (5), a movable end cover (6) and a fixed end cover (7);
a spring mounting groove is processed in the middle of the sleeve (1), and the spring (2) is arranged in the spring mounting groove;
two ends of the spring (2) are respectively welded and fixed with the two spring pressing plates (4);
one end of the sleeve (1) is provided with a movable end cover (6), and the other end is provided with a fixed end cover (7);
one end of the movable rod (3) extends into the spring mounting groove from the movable end cover (6) of the sleeve (1) and is fixedly welded with a spring pressing plate (4), and the other end of the movable rod (3) is connected with the small branch pipe;
one end of the fixing rod (5) extends into the spring mounting groove from a fixed end cover (7) of the sleeve (1) and is welded and fixed with the other spring pressing plate (4), and the other end of the fixing rod (5) is welded and fixed with the foundation or other foundation mounting supports.
2. The small branch pipe vibration abatement apparatus for nuclear power plant of claim 1, wherein: the movable end cover (6) is a ring plate.
3. The small branch pipe vibration abatement apparatus of nuclear power plant of claim 2, wherein: the diameter of a central opening of the movable end cover (6) is larger than that of the movable rod (3).
4. The small branch pipe vibration abatement apparatus of nuclear power plant of claim 3, wherein: the diameter of a central opening of the movable end cover (6) is 1.1-1.3 times of the diameter of the movable rod (3).
5. The small branch pipe vibration abatement apparatus of nuclear power plant of claim 4, wherein: the fixed end cover (7) is fixed with the fixed rod (5) in a welding mode.
6. The vibration abatement apparatus for small branch pipes of nuclear power plants of claim 5, wherein: the sleeve (1), the spring (2), the movable rod (3), the spring pressing plate (4), the fixed rod (5), the movable end cover (6) and the fixed end cover (7) are coaxial.
7. The small branch pipe vibration abatement apparatus of nuclear power plant of claim 6, wherein: the larger the small branch vibration value or amplitude is, the more rigid the spring (2) is selected to be.
8. The nuclear power plant small branch pipe vibration abatement device of claim 7, wherein: the other end of the movable rod (3) is connected with the small branch pipe through a pipe clamp.
9. The vibration abatement device for small branch pipes of nuclear power plants according to any one of claims 1 to 8, wherein: according to the actual situation, the vibration problem of the small branch pipes can be effectively solved by arranging the small branch pipes along the pipe system at multiple points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022182764.0U CN213982517U (en) | 2020-09-29 | 2020-09-29 | Small branch pipe vibration treatment device for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022182764.0U CN213982517U (en) | 2020-09-29 | 2020-09-29 | Small branch pipe vibration treatment device for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213982517U true CN213982517U (en) | 2021-08-17 |
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ID=77255153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022182764.0U Active CN213982517U (en) | 2020-09-29 | 2020-09-29 | Small branch pipe vibration treatment device for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213982517U (en) |
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2020
- 2020-09-29 CN CN202022182764.0U patent/CN213982517U/en active Active
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