CN112503397A - Tritium-containing heavy water conveying device - Google Patents
Tritium-containing heavy water conveying device Download PDFInfo
- Publication number
- CN112503397A CN112503397A CN202011263981.0A CN202011263981A CN112503397A CN 112503397 A CN112503397 A CN 112503397A CN 202011263981 A CN202011263981 A CN 202011263981A CN 112503397 A CN112503397 A CN 112503397A
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- Prior art keywords
- heavy water
- exhaust
- valve
- collecting tank
- joint
- 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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- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 title claims abstract description 238
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 32
- 229910052722 tritium Inorganic materials 0.000 title claims abstract description 32
- 238000010926 purge Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 22
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002915 spent fuel radioactive waste Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/12—Conveying liquids or viscous products by pressure of another fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/065—Arrangements for producing propulsion of gases or vapours
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a tritium-containing heavy water transmission device which comprises a high-pressure gas cylinder, wherein the high-pressure gas cylinder is connected with a heavy water collecting tank through a purging pipeline, the outlet of the high-pressure gas cylinder is connected with a pressure reducing valve, the inlet of the heavy water collecting tank is connected with a purging valve, the heavy water collecting tank is connected with an exhaust valve, the outlet of the heavy water collecting tank is connected with a special draining joint of the heavy water bucket through a drain valve and a drain pipeline, the special draining joint is connected with the heavy water bucket, the special draining joint is connected with an exhaust joint through an exhaust pipeline, and the exhaust joint is positioned inside an exhaust container. The invention has the beneficial effects that: the structure of the device is safe and reliable, convenient and practical, realizes whole-course airtight transmission, reduces the operation cost, avoids factory buildings and environment from being polluted, ensures the radiation safety of workers, and meets the use requirement of the whole service life of a power station.
Description
Technical Field
The invention belongs to a device for a heavy water reactor nuclear power station, and particularly relates to a tritium-containing heavy water conveying device.
Background
One of the biggest characteristics of the heavy water reactor nuclear power unit is that the nuclear power unit does not stop piling and changing materials, changing materials for 4 days every week basically, and in the process of discharging materials after finishing changing materials every time, the heavy water leaked from the internal seal of the loading and unloading machine flows out of the loading and unloading machine along with the spent fuel rod bundle and flows into the ground of a discharging factory and a discharging water pool, so that heavy water loss and factory pollution are caused. Because the heavy water is quite expensive, in order to protect the environment and reduce the operation cost, the tritium-containing heavy water leaked from the unloading factory building is collected and recovered by manufacturing a heavy water collecting tank. According to statistics, each unit can collect about 400L of heavy water every year.
Because the factory building structure of unloading is special, the unevenness, pollutes heavily, and the tritium-containing heavy water that the heavy water collection tank was collected can't directly be transported through dolly or crane, if take the mode of manual evacuation, the tritium in the heavy water will spread whole workshop of unloading, and not only work load is big, and the dosage is high, will still cause great influence to staff and environment. Therefore, a reliable conveying device is needed to be designed to convey the tritium-containing heavy water in the heavy water collecting tank to the heavy water barrel outside the plant, so that safe evacuation of the tritium-containing heavy water is ensured, and plant pollution and accidental dose irradiation of workers are prevented.
Disclosure of Invention
The invention aims to provide a tritium-containing heavy water conveying device which is mainly used for a field non-heavy water vapor recovery system and is used for conveying and treating tritium-containing heavy water in a heavy water collecting tank.
The technical scheme of the invention is as follows: the utility model provides a transmission device who contains tritium heavy water, includes the high-pressure cylinder, the high-pressure cylinder be connected with the heavy water catch bowl through sweeping the pipeline, the exit of high-pressure cylinder is connected with the relief pressure valve, the import department of heavy water catch bowl is connected with the purge valve, the heavy water catch bowl is connected with discharge valve, the hydrophobic special joint of drain valve and drain pipe connection heavy cask is passed through in the exit of heavy water catch bowl, hydrophobic special joint passes through exhaust duct and exhaust joint connection, the exhaust joint is located inside the exhaust vessel.
The purge valve is positioned at the inlet of the top end of the heavy water collecting tank.
And a liquid level meter is also arranged on the heavy water collecting tank.
The top end of the heavy water collecting tank is connected with an exhaust valve.
And a drain valve is connected to an outlet at the lower part of the heavy water collecting tank.
The special hydrophobic joint is positioned at the top of the heavy water bucket.
The heavy water bucket is connected with a liquid level meter.
The invention has the beneficial effects that: the structure of the device is safe and reliable, convenient and practical, realizes whole-course airtight transmission, reduces the operation cost, avoids factory buildings and environment from being polluted, ensures the radiation safety of workers, and meets the use requirement of the whole service life of a power station.
Drawings
FIG. 1 is a schematic diagram of a transport device for heavy water containing tritium provided by the invention.
In the figure, 1 a high-pressure gas cylinder, 2 a pressure reducing valve, 3 a purging pipeline, 4 a purging valve, 5 an exhaust valve, 6 a drain pipeline, 7 a special draining joint, 8 a liquid level meter, 9 an exhaust pipeline, 10 an exhaust joint, 11 an exhaust container, 12 a heavy water bucket, 13 a drain valve, 14 a liquid level meter and 15 a heavy water collecting tank.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Heavy water reactor nuclear power station factory building environment of unloading is special, and there is step and unevenness on ground, and heavy water collection tank volume is big, and weight is heavy, can not directly move or handling, dredges the row if take the manual heavy water of collecting in the jar to heavy water, and the staff not only frequently advances the factory building of unloading, and work load is big, and the dosage is high, and the tritium of heavy aquatic will spread whole workshop of unloading moreover, causes the influence to staff and factory building environment. According to the tritium-containing heavy water transmission device, tritium-containing heavy water in the heavy water collection tank is transmitted to the heavy water barrel outside a plant through the compressed air, so that whole-process airtight transmission is realized, tritium in the heavy water is ensured not to be diffused to the environment, and the safety of personnel and the plant environment is ensured.
As shown in fig. 1, a tritium-containing heavy water transmission device comprises a high-pressure gas cylinder 1, a pressure reducing valve 2, a purging pipeline 3, a purging valve 4, an exhaust valve 5, a drain pipeline 6, a special drain joint 7, a liquid level meter 8, an exhaust pipeline 9, an exhaust joint 10, an exhaust container 11, a heavy water barrel 12, a drain valve 13, a liquid level meter 14 and a heavy water collection tank 15; wherein, high-pressure gas cylinder 1 is connected with heavy water collection tank 15 through purging pipeline 3, the exit of high-pressure gas cylinder 1 is connected with relief pressure valve 2, the import department that is located the top of heavy water collection tank 15 is connected with purge valve 4, still be provided with level gauge 14 on heavy water collection tank 15, the top of heavy water collection tank 15 is connected with discharge valve 5, the hydrophobic special joint 7 at the top of heavy water bucket 12 is connected through trap 13 and drain pipe 6 in the exit of the lower part of heavy water collection tank 15, hydrophobic special joint 7 is connected heavy water bucket 12, hydrophobic special joint 7 still is connected with exhaust joint 10 through exhaust duct 9, exhaust joint 10 is located inside exhaust container 11, be connected with level gauge 8 on the heavy water bucket 12.
The specific description is as follows: after the heavy water leaked from the unloading factory building enters the heavy water collecting tank, the liquid level of the heavy water is monitored by the liquid level meter, and when the liquid level reaches a high liquid level, the heavy water is prepared to be transmitted. The pressure reducing valve is arranged behind the high-pressure gas cylinder and connected with the blowing valve at the top of the heavy water collecting tank through the blowing pipeline, then the drain valve at the bottom of the heavy water collecting tank is connected with the special drain joint on the heavy water bucket through the drain pipeline, and the special drain joint is provided with the exhaust pipeline and the exhaust joint which are inserted into the exhaust container filled with the solution. When a pressure reducing valve of a high-pressure gas cylinder is opened slowly, high-pressure gas enters a heavy water collecting tank through a purge valve, heavy water containing tritium in the tank is transmitted into a heavy water bucket through a drain valve and a pipeline, the tritium-containing gas in the heavy water bucket enters a solution through an exhaust pipeline and an exhaust joint, and is exhausted after being absorbed by the solution. And when the liquid level of the heavy water collecting tank is reduced to a low liquid level, closing the pressure reducing valve of the high-pressure gas cylinder, dismantling the dredging and draining pipeline, closing the drain valve, and putting the heavy water collecting tank into operation again. And (3) transferring the heavy water bucket filled with tritium-containing heavy water to a heavy water recovery system through a trolley for upgrading and purifying, and finally transferring the heavy water to a heavy water supply main system for continuous use to form a heavy water management closed cycle.
The specific operation method of the invention is as follows:
(1) the heavy water collecting tank 15 is placed at a proper position of a discharging factory building, a water inlet hose at the outlet of the spent fuel channel is connected with the upper end of a purging valve 4 at the top of the heavy water collecting tank 15, the purging valve 4 and an exhaust valve 5 are opened, and a drain valve 13 is closed to prepare for collecting heavy water.
(2) Heavy water flowing out along with the spent fuel bundle during discharging flows into the heavy water collecting tank 15 along a water inlet hose, and the liquid level of the tank is monitored through the liquid level meter 14.
(3) And when the heavy water liquid level in the tank reaches a high liquid level, closing the purge valve 4 and the exhaust valve 5, and removing the water inlet hose to prepare for heavy water transmission.
(4) The high-pressure gas cylinder 1 and the pressure reducing valve 2 are connected with a top purge valve 4 through a purge pipeline 3.
(5) The special joint 7 for drainage is arranged on a heavy water bucket 12 outside a factory building, and the liquid level in the bucket is monitored by a liquid level meter 8.
(6) The drain pipe 6 is connected to the drain exclusive joint 7 and the drain valve 13, and the exhaust pipe 9 is connected to the exhaust joint 10 and the drain exclusive joint 7.
(7) The exhaust fitting 10 is inserted into an exhaust container 11 containing a large amount of solution, and the exhaust fitting 10 is fixed.
(8) The trap 13 is opened and heavy water transfer is initiated.
(9) The pressure reducing valve 2 of the high-pressure gas cylinder is slowly opened, the high-pressure gas enters the heavy water collecting tank 15, and under the action of the high-pressure gas, the tritium-containing heavy water in the tank enters the heavy water barrel 12 through the drain valve 13 and the drain pipeline 6.
(10) Tritium-containing gas in the heavy water bucket 12 enters the solution in the exhaust container 11 through the exhaust pipeline 9 and the exhaust joint 10, and the tritium-containing gas is absorbed by the solution to form tritium-free gas to be discharged.
(11) When the liquid level of the heavy water collecting tank 15 is reduced to a low liquid level, the pressure reducing valve 2 of the high-pressure gas cylinder is closed, all dredging and discharging pipelines are removed, the drain valve 13 is closed, the purge valve 4 and the exhaust valve 5 are opened, and the heavy water collecting tank is put into use again.
(12) The heavy water barrel 12 filled with tritium-containing heavy water is transferred to a heavy water recovery system through a trolley for upgrading and purifying treatment, and finally transferred into a heavy water supply main system for continuous use to form a heavy water management closed cycle.
Claims (7)
1. The utility model provides a transmission device that contains tritium heavy water which characterized in that: including high-pressure gas cylinder, high-pressure gas cylinder be connected with heavy water collection tank through purging the pipeline, high-pressure gas cylinder's exit is connected with the relief pressure valve, the import department of heavy water collection tank is connected with the purge valve, heavy water collection tank is connected with discharge valve, the hydrophobic special joint of heavy cask is connected through trap and drain pipe in the exit of heavy water collection tank, hydrophobic special joint connects heavy cask, hydrophobic special joint passes through exhaust duct and exhaust articulate, exhaust joint is located inside the exhaust container.
2. A transport device for heavy water containing tritium according to claim 1, characterized in that: the purge valve is positioned at the inlet of the top end of the heavy water collecting tank.
3. A transport device for heavy water containing tritium according to claim 1, characterized in that: and a liquid level meter is also arranged on the heavy water collecting tank.
4. A transport device for heavy water containing tritium according to claim 1, characterized in that: the top end of the heavy water collecting tank is connected with an exhaust valve.
5. A transport device for heavy water containing tritium according to claim 1, characterized in that: and a drain valve is connected to an outlet at the lower part of the heavy water collecting tank.
6. A transport device for heavy water containing tritium according to claim 1, characterized in that: the special hydrophobic joint is positioned at the top of the heavy water bucket.
7. A transport device for heavy water containing tritium according to claim 1, characterized in that: the heavy water bucket is connected with a liquid level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263981.0A CN112503397A (en) | 2020-11-12 | 2020-11-12 | Tritium-containing heavy water conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263981.0A CN112503397A (en) | 2020-11-12 | 2020-11-12 | Tritium-containing heavy water conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112503397A true CN112503397A (en) | 2021-03-16 |
Family
ID=74957268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011263981.0A Pending CN112503397A (en) | 2020-11-12 | 2020-11-12 | Tritium-containing heavy water conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112503397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352930A (en) * | 2021-12-12 | 2022-04-15 | 航天晨光股份有限公司 | Safe and automatic transfer system from liquid hydrogen to liquid hydrogen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316693A (en) * | 1988-06-17 | 1989-12-21 | Power Reactor & Nuclear Fuel Dev Corp | Method and device for recovering heavy water in which high-concentration tritium coexists |
| JP2005090988A (en) * | 2003-09-12 | 2005-04-07 | Showa Engineering Co Ltd | Drying method and dryer system of tritium-including heavy water handling facility |
| CN204785577U (en) * | 2015-07-13 | 2015-11-18 | 武汉都市环保工程技术股份有限公司 | Hydrophobic recycle system of steam conduit |
| CN204879455U (en) * | 2015-08-13 | 2015-12-16 | 广东韶钢松山股份有限公司 | Atmospheric pressure drain |
| CN107274950A (en) * | 2017-06-22 | 2017-10-20 | 中广核久源（成都）科技有限公司 | It is a kind of to be used to handle the purifier that neutron imaging instrument produces tritium gas |
| CN211464162U (en) * | 2019-11-21 | 2020-09-11 | 广西电网有限责任公司电力科学研究院 | High-temperature high-pressure pipeline flushing system of thermal power generating unit |
| CN213983015U (en) * | 2020-11-12 | 2021-08-17 | 中核核电运行管理有限公司 | Tritium-containing heavy water conveying device |
-
2020
- 2020-11-12 CN CN202011263981.0A patent/CN112503397A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316693A (en) * | 1988-06-17 | 1989-12-21 | Power Reactor & Nuclear Fuel Dev Corp | Method and device for recovering heavy water in which high-concentration tritium coexists |
| JP2005090988A (en) * | 2003-09-12 | 2005-04-07 | Showa Engineering Co Ltd | Drying method and dryer system of tritium-including heavy water handling facility |
| CN204785577U (en) * | 2015-07-13 | 2015-11-18 | 武汉都市环保工程技术股份有限公司 | Hydrophobic recycle system of steam conduit |
| CN204879455U (en) * | 2015-08-13 | 2015-12-16 | 广东韶钢松山股份有限公司 | Atmospheric pressure drain |
| CN107274950A (en) * | 2017-06-22 | 2017-10-20 | 中广核久源（成都）科技有限公司 | It is a kind of to be used to handle the purifier that neutron imaging instrument produces tritium gas |
| CN211464162U (en) * | 2019-11-21 | 2020-09-11 | 广西电网有限责任公司电力科学研究院 | High-temperature high-pressure pipeline flushing system of thermal power generating unit |
| CN213983015U (en) * | 2020-11-12 | 2021-08-17 | 中核核电运行管理有限公司 | Tritium-containing heavy water conveying device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352930A (en) * | 2021-12-12 | 2022-04-15 | 航天晨光股份有限公司 | Safe and automatic transfer system from liquid hydrogen to liquid hydrogen |
| CN114352930B (en) * | 2021-12-12 | 2024-03-29 | 航天晨光股份有限公司 | Liquid hydrogen to liquid hydrogen safety automatic transfer injection method |
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