CN220249684U - Lead bismuth pipeline on-line switching device - Google Patents
Lead bismuth pipeline on-line switching device Download PDFInfo
- Publication number
- CN220249684U CN220249684U CN202321850823.4U CN202321850823U CN220249684U CN 220249684 U CN220249684 U CN 220249684U CN 202321850823 U CN202321850823 U CN 202321850823U CN 220249684 U CN220249684 U CN 220249684U
- Authority
- CN
- China
- Prior art keywords
- bismuth
- lead
- switching device
- branch
- water cooling
- 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
- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 95
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims description 14
- 239000004964 aerogel Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 5
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 22
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- 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
Abstract
The utility model discloses an online lead-bismuth pipeline switching device which comprises a plurality of lead-bismuth branches, a heating mechanism and a water cooling mechanism, wherein the lead-bismuth branches are connected in parallel at the inlet side of a test body; the heating mechanism is detachably arranged on each lead bismuth branch, and the water cooling mechanism is detachably arranged on each lead bismuth branch. The lead-bismuth pipeline online switching device is suitable for liquid metal thermal fluid tests, and the liquid metal medium in the lead-bismuth branch is cooled by the water cooling mechanism to be solidified, so that solidification and blocking of the lead-bismuth branch are realized, leakage of the liquid metal medium is avoided, and online switching of the lead-bismuth branch is facilitated; the liquid metal medium in the lead bismuth branch is heated by the heating mechanism to be in a molten state, so that the measurement of different test flow rates is realized.
Description
Technical Field
The utility model relates to the technical field of liquid metal thermal fluid tests, in particular to an online switching device for lead-bismuth pipelines.
Background
Currently, in a liquid metal thermal fluid test, a plurality of parallel lead bismuth pipelines are generally arranged at an inlet of a test body and are used for developing test working conditions in different flow ranges. Methods generally adopted in the process of switching the lead bismuth pipeline comprise the implementation of a stop valve or the arrangement of a blind plate on the lead bismuth pipeline. The stop valve has a certain leakage rate, zero leakage rate is difficult to realize for liquid metal medium, the pipeline flowing through the medium cannot be guaranteed to be the only passage of a loop, and accurate measurement of flow is affected. The zero leakage rate of the medium can be ensured by arranging the blind plates on the lead bismuth pipeline, but the medium cannot be switched on line, and the lead bismuth pipeline is switched by heating and injecting the material after the blind plates are disassembled and assembled by the return material cooling every time, so that the implementation period and the cost are higher.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the lead-bismuth pipeline on-line switching device which can avoid leakage and ensure accurate measurement of flow.
The technical scheme adopted for solving the technical problems is as follows: the lead-bismuth pipeline online switching device comprises a plurality of lead-bismuth branches connected in parallel at the inlet side of a test body, a heating mechanism and a water cooling mechanism;
the heating mechanism is detachably arranged on each lead bismuth branch, and the water cooling mechanism is detachably arranged on each lead bismuth branch.
Preferably, the heating mechanism is a heat tracing device.
Preferably, the heat tracing device is a crawler-type heat tracing device.
Preferably, the water cooling mechanism comprises a clamp-on water cooling jacket.
Preferably, the water cooling mechanism further comprises a water cooling machine connected with and supplying cooling water to the clamping type water cooling sleeve.
Preferably, the lead bismuth pipeline online switching device further comprises a heat preservation mechanism, and the heat preservation mechanism is detachably arranged outside the heating mechanism.
Preferably, the insulation mechanism comprises aerogel insulation cotton.
Preferably, the thermal insulation mechanism further comprises a magic tape which is arranged on the aerogel thermal insulation cotton and used for bonding the aerogel thermal insulation cotton.
Preferably, the lead-bismuth pipeline online switching device further comprises at least one feed back pipe, and the feed back pipe is connected between the lead-bismuth branch and the storage box.
Preferably, the lead bismuth pipeline on-line switching device further comprises a main loop and a lead bismuth pump;
one end of the main loop is connected with the outlet of the test body, and the other end of the main loop is connected with the lead bismuth branch; the lead bismuth pump is disposed on the primary circuit.
The utility model has the beneficial effects that: the device is suitable for a liquid metal thermal fluid test, and the liquid metal medium in the lead-bismuth branch is cooled by the water cooling mechanism to be solidified, so that solidification and blocking of the lead-bismuth branch are realized, leakage of the liquid metal medium is avoided, and online switching of the lead-bismuth branch is facilitated; the liquid metal medium in the lead bismuth branch is heated by the heating mechanism to be in a molten state, so that the measurement of different test flow rates is realized.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic connection diagram of an online lead-bismuth pipeline switching device according to an embodiment of the present utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.
The lead-bismuth pipeline online switching device is used in a liquid metal thermal fluid test loop to realize switching of test pipelines.
As shown in fig. 1, the lead-bismuth pipeline online switching device according to an embodiment of the utility model includes a plurality of lead-bismuth branches 10, a heating mechanism 20 and a water cooling mechanism 30.
The lead bismuth branches 10 are arranged in parallel and connected to the inlet side of the test body 1, and each lead bismuth branch 10 can correspond to different flow rates and is used for developing test working conditions of different flow rates. The heating mechanism 20 is detachably mounted on each lead-bismuth branch circuit 10, and is used for heating the lead-bismuth branch circuit 10 to ensure that the liquid metal medium in the lead-bismuth branch circuit 10 is in a molten state. The water cooling mechanism 30 is detachably installed on each lead bismuth branch circuit 10, and the liquid metal medium in the lead bismuth branch circuit 10 is cooled to be below a melting point through water cooling, so that solidification and blockage of the lead bismuth branch circuit 10 are realized, and leakage of the liquid metal medium is avoided.
The test body 1 is typically a closed container.
The lead-bismuth branches 10 can have different inner diameters and other sizes or specifications, and can be used for installing flow meters in different test flow ranges to meet the measurement requirements of different flow ranges. At least one temperature measuring point can be further arranged on each lead bismuth branch circuit 10 and used for monitoring the temperature condition of the liquid metal medium in the lead bismuth branch circuit 10.
The heating mechanism 20 is a heat tracing device. The heat tracing device is preferably a crawler-type heat tracing device, so that the temperature of the lead-bismuth branch circuit 10 can be guaranteed to be evenly raised, and the lead-bismuth branch circuit is convenient to detach and install.
The water cooling mechanism 30 may include a clamp-on water-cooled jacket and a water cooler that provides cooling water to the clamp-on water-cooled jacket. The clamping type water-cooling sleeve is detachably arranged on the periphery of the lead-bismuth branch circuit 10 in a clamping mode, and the heat of the lead-bismuth branch circuit 10 is taken away through water cooling, so that the temperature of the liquid metal medium in the lead-bismuth branch circuit 10 is reduced. The water cooler is connected with the clamping type water cooling sleeve and forms a cooling water circulation loop, and cooling water can continuously enter and exit the clamping type water cooling sleeve to ensure the cooling effect of water cooling.
Further, the lead bismuth pipeline online switching device of the utility model can further comprise a heat preservation mechanism (not shown), and the heat preservation mechanism is detachably arranged outside the heating mechanism 20. When the heating mechanism 20 heats the lead-bismuth branch 10 to a preset temperature, the heating can be stopped, and the heat preservation is performed through the coating of the heat preservation mechanism outside the heating mechanism 20.
The insulation mechanism may further comprise aerogel insulation wool. The aerogel heat insulation cotton has the advantages of large heat resistance and good heat insulation effect. And the aerogel heat-insulating cotton can be further provided with a magic tape, and during installation, after wrapping the aerogel heat-insulating cotton around the periphery of the heating mechanism 20, the butt joint side is adhered through the magic tape, so that the aerogel heat-insulating cotton is fixed outside the heating mechanism 20.
Still further, the lead-bismuth pipeline online switching device of the utility model further comprises at least one feed back pipe 40, wherein the feed back pipe 40 is connected between the lead-bismuth branch 10 and the storage box 2. After the front and rear cutting of the lead bismuth branch circuit 10 is completed, the liquid metal medium in the lead bismuth branch circuit 10 can be discharged to the storage box 2 through the feed back pipe 40, so that the lead bismuth branch circuit 10 is subjected to online maintenance of the instruments such as a transmitter and a temperature measuring assembly, the operation and maintenance cost of a test is reduced, and the capability of the device for coping with emergency is improved.
The lead-bismuth pipeline online switching device is applied to a liquid metal thermal fluid test loop, and further comprises a main loop 3 and a lead-bismuth pump 4.
One end of the main loop 3 is connected with an outlet of the test body 1, and the other end is connected with a lead bismuth branch 10; a lead bismuth pump 4 is provided on the main circuit 3. The lead bismuth pump 4 is used as a power pump to realize the flow of the liquid metal medium in the loop. The main loop 3 is also connected with the storage box 2 through a material injection loop branch.
When the lead-bismuth pipeline online switching device works, a corresponding lead-bismuth branch circuit 10 is selected according to the test flow demand, and the rest of lead-bismuth branch circuits 10 carry out low-temperature condensation on liquid metal media in the lead-bismuth branch circuits through a water cooling mechanism 30 arranged on the lead-bismuth branch circuits, so that solidification and blockage (non-circulation and cut-off states) of the lead-bismuth branch circuits 10 without a test are realized. The lead bismuth branch 10 to be tested is heated by the heating mechanism 20 arranged on the lead bismuth branch 10, so that the liquid metal medium in the lead bismuth branch 10 is ensured to be in a molten state and can flow into the test body 1.
When it is necessary to switch the lead bismuth branch circuit 10, the lead bismuth branch circuit 10 which is not required to be tested is solidified and blocked by the water cooling mechanism 30, and the circulation state of the lead bismuth branch circuit 10 which is required to be tested is ensured by the heating mechanism 20 with reference to the above operation.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. The lead-bismuth pipeline online switching device is characterized by comprising a plurality of lead-bismuth branches connected in parallel at the inlet side of a test body, a heating mechanism and a water cooling mechanism;
the heating mechanism is detachably arranged on each lead bismuth branch, and the water cooling mechanism is detachably arranged on each lead bismuth branch.
2. The lead bismuth pipeline online switching device according to claim 1, wherein the heating mechanism is a heat tracing device.
3. The lead bismuth pipeline online switching device according to claim 2, wherein the heat tracing device is a crawler-type heat tracing device.
4. The lead bismuth pipeline online switching device of claim 1, wherein the water cooling mechanism comprises a clamp-type water cooling sleeve.
5. The lead bismuth pipeline online switching device of claim 4, wherein the water cooling mechanism further comprises a water cooler connected to and providing cooling water to the clamp-type water cooling jacket.
6. The lead-bismuth pipeline online switching device according to any one of claims 1 to 5, further comprising a heat preservation mechanism detachably mounted outside the heating mechanism.
7. The lead bismuth pipeline online switching device of claim 6, wherein the insulation mechanism comprises aerogel insulation cotton.
8. The lead bismuth pipeline online switching device of claim 7, wherein the thermal insulation mechanism further comprises a magic tape arranged on the aerogel thermal insulation cotton and used for bonding the aerogel thermal insulation cotton.
9. The lead-bismuth conduit on-line switching device of any one of claims 1-5, further comprising at least one feed back tube connected between the lead-bismuth leg and a storage tank.
10. The lead-bismuth pipeline online switching device according to claim 9, further comprising a main circuit and a lead-bismuth pump;
one end of the main loop is connected with the outlet of the test body, and the other end of the main loop is connected with the lead bismuth branch; the lead bismuth pump is disposed on the primary circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850823.4U CN220249684U (en) | 2023-07-13 | 2023-07-13 | Lead bismuth pipeline on-line switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850823.4U CN220249684U (en) | 2023-07-13 | 2023-07-13 | Lead bismuth pipeline on-line switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249684U true CN220249684U (en) | 2023-12-26 |
Family
ID=89263918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321850823.4U Active CN220249684U (en) | 2023-07-13 | 2023-07-13 | Lead bismuth pipeline on-line switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249684U (en) |
-
2023
- 2023-07-13 CN CN202321850823.4U patent/CN220249684U/en active Active
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