CN109473194B - Attenuation tube for deep water tank type low-temperature heat supply stack - Google Patents
Attenuation tube for deep water tank type low-temperature heat supply stack Download PDFInfo
- Publication number
- CN109473194B CN109473194B CN201811342625.0A CN201811342625A CN109473194B CN 109473194 B CN109473194 B CN 109473194B CN 201811342625 A CN201811342625 A CN 201811342625A CN 109473194 B CN109473194 B CN 109473194B
- Authority
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- China
- Prior art keywords
- cylinder
- type low
- water inlet
- attenuation
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QGZKDVFQNNGYKY-NJFSPNSNSA-N nitrogen-16 Chemical compound [16NH3] QGZKDVFQNNGYKY-NJFSPNSNSA-N 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to an attenuation cylinder for a deep water tank type low-temperature heat supply stack, which comprises a cylinder body provided with a water inlet and a water outlet; the water outlet is connected with a loop main pipeline; an internal baffle plate capable of prolonging the decay time of the fluid in the cylinder body is arranged in the cylinder body. The beneficial effects of the invention are as follows: the fluid of the water inlet is buffered through the internal partition plate, so that the flowing time of the fluid in the cylinder is prolonged, and the decay time of cooling water is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of cores, in particular to an attenuation cylinder for a deep water tank type low-temperature heat supply stack.
Background
In the design of a deep pool type low temperature heating stack, an attenuation cylinder device needs to be applied, so that radioactive nitrogen-16 generated in a reactor core can be attenuated greatly when passing through the decay tank, and finally, the radioactivity level of a primary pump room is attenuated by 4 orders of magnitude compared with that of the primary pump room without the decay tank. The damping cylinder is integrally arranged in a pool of the deep pool type low-temperature heat supply pile, the inlet and the outlet of the damping cylinder are respectively connected with the outer cylinder body of the lower hanging basket of the reactor core and a loop pipeline, and a reasonable baffle structure is arranged in the damping cylinder, so that the damping time of fluid can be fully prolonged under the condition of causing reasonable pressure drop. And the prior art has no proper technical proposal.
In view of this, the present invention has been made.
Disclosure of Invention
In view of the drawbacks of the prior art, it is an object of the present invention to provide an attenuation cartridge for a deep pool low temperature heating stack that is capable of sufficiently extending the decay time of a fluid while causing a reasonable pressure drop.
The technical scheme of the invention is as follows:
An attenuation tube for a deep water pool type low-temperature heat supply stack comprises a tube body provided with a water inlet and a water outlet; the water outlet is connected with a loop main pipeline; an internal baffle plate capable of prolonging the decay time of the fluid in the cylinder body is arranged in the cylinder body.
Further, the damping cylinder for the deep water tank type low-temperature heat supply stack comprises the inner partition plate, wherein the inner partition plate comprises a conical ring plate and an open pore baffle plate arranged on the periphery of the conical ring plate; the conical ring plate comprises an open large end and a closed small end; the large end faces the direction of the water inlet.
Further, the attenuation cylinder for the deep water tank type low-temperature heat supply stack is characterized in that the perforated baffle plate is a template plate provided with holes.
Further, the damping cylinder for the deep water tank type low-temperature heat supply stack is characterized in that the perforated baffle plate is welded on the conical ring plate.
Further, the damping cylinder for the deep water tank type low-temperature heat supply stack is characterized in that the perforated baffle plate is welded on the cylinder body.
Further, the damping cylinder for the deep water tank type low-temperature heat supply stack is characterized in that the upper end and the lower end of the cylinder body are conical sealing heads, and the water inlet and the water outlet are respectively arranged on the conical sealing heads.
Further, the attenuation tube for the deep water tank type low-temperature heat supply stack is characterized in that the water inlet and the water outlet are respectively connected with corrugated pipes.
Further, the damping cylinder for the deep water tank type low-temperature heat supply stack is characterized in that the cylinder body is further provided with a support flange for fixing.
The beneficial effects of the invention are as follows:
The fluid of the water inlet is buffered through the internal partition plate, so that the time of the fluid in the cylinder is prolonged, and the decay time of cooling water is effectively prolonged.
Drawings
Fig. 1 is a schematic structural view of an attenuation tube for a deep pool type low temperature heat supply stack according to the present invention.
Fig. 2 is a schematic structural view of the inner partition.
In the drawings, 1, a corrugated pipe; 2. a water inlet; 3. conical end socket; 4. an inner partition; 5. a cylinder; 6. a support flange; 7. conical end socket; 8. a water outlet; 9. a bellows; 10. a perforated baffle; 11. conical ring plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention provides an attenuation cylinder for a deep water tank type low-temperature heat supply stack, which comprises a cylinder body 5 provided with a water inlet 2 and a water outlet 8; the water outlet 8 is connected with a main loop pipe; the inside of the cylinder 5 is provided with an internal baffle 4 which can prolong the decay time of the fluid in the cylinder 5. The upper end and the lower end of the cylinder body 5 are conical sealing heads (3 and 7) (the sealing heads are welded on the cylinder body 5), and the water inlet 2 and the water outlet 8 are respectively arranged on the conical sealing heads (3 and 7). The conical sealing heads (3, 7) have smaller dimension in the height direction, and can furthest increase the height of the cylinder body 5 of the attenuation cylinder under the condition of a certain total length of equipment so as to prolong the attenuation time of cooling water in the cylinder. The water inlet 2 and the water outlet 8 are respectively connected with corrugated pipes (1, 9) (in the embodiment, the connection between the corrugated pipe 1 and the water inlet 2 and the connection between the corrugated pipe 9 and the water outlet 8 are all welded). The bellows is used to compensate for axial and radial expansion of the device. The cylinder 5 is also provided with a support flange 6 for fixing.
After flowing through the reactor core, the cooling water enters the cylinder 5 from the water inlet 2 at the lower part, is fully attenuated under the action of the inner partition plate 4 of the cylinder 5, flows out of the cylinder 5 from the water outlet 8 at the upper part and enters a loop system.
The specific structure of the inner partition plate 4 is shown in fig. 2, and comprises a conical ring plate 11 and an opening baffle plate 10 arranged on the periphery of the conical ring plate 11; the conical ring plate 11 comprises an open large end and a closed small end; the large end faces the direction of the water inlet 2. The perforated baffle 10 is a profiled plate (i.e., a plate with protruding edges on the top and bottom) provided with openings. The two wings of the template play a role in strengthening the main body of the template. In this embodiment, the perforated baffle 10 is welded to the conical ring plate 11. The perforated baffle 10 is welded to the cylinder 5. In the structural design, after cooling water enters the cylinder body 5 of the attenuation cylinder through the lower water inlet 2, high-speed cooling water in the middle part can be deflected obliquely downwards at the conical ring plate 11 and enters the cylinder body 5 of the attenuation cylinder from the edge, so that the attenuation time of the cooling water is effectively prolonged.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. An attenuation section of thick bamboo for deep water pond formula low temperature heat supply heap, its characterized in that: comprises a cylinder (5) provided with a water inlet (2) and a water outlet (8); the water outlet (8) is connected with a main loop pipe; an inner partition plate (4) capable of prolonging the decay time of fluid in the cylinder (5) is arranged inside the cylinder (5), and the inner partition plate (4) comprises a conical ring plate (11) and an open pore baffle plate (10) arranged on the circumference of the conical ring plate (11); the conical ring plate (11) comprises an open large end and a closed small end; the large end faces the direction of the water inlet (2), the perforated baffle (10) is a template plate provided with holes, the perforated baffle (10) is welded on the conical ring plate (11), and the cylinder body (5) is further provided with a support flange (6) for fixing.
2. The attenuation cartridge for a deep pool type low temperature heating stack as claimed in claim 1, wherein: the perforated baffle (10) is welded on the cylinder (5).
3. The attenuation cartridge for a deep pool type low temperature heating stack as claimed in claim 1, wherein: the upper end and the lower end of the cylinder body (5) are both conical sealing heads, and the water inlet (2) and the water outlet (8) are respectively arranged on the conical sealing heads.
4.A damping cylinder for a deep pool type low temperature heating stack as claimed in claim 3, wherein: the water inlet (2) and the water outlet (8) are respectively connected with corrugated pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342625.0A CN109473194B (en) | 2018-11-12 | 2018-11-12 | Attenuation tube for deep water tank type low-temperature heat supply stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342625.0A CN109473194B (en) | 2018-11-12 | 2018-11-12 | Attenuation tube for deep water tank type low-temperature heat supply stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109473194A CN109473194A (en) | 2019-03-15 |
| CN109473194B true CN109473194B (en) | 2024-05-14 |
Family
ID=65671876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811342625.0A Active CN109473194B (en) | 2018-11-12 | 2018-11-12 | Attenuation tube for deep water tank type low-temperature heat supply stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473194B (en) |
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| CN109473194A (en) | 2019-03-15 |
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