CN205102221U - Deep well low temperature nuclear heating reactor safety heat transfer system - Google Patents
Deep well low temperature nuclear heating reactor safety heat transfer system Download PDFInfo
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- CN205102221U CN205102221U CN201520868947.4U CN201520868947U CN205102221U CN 205102221 U CN205102221 U CN 205102221U CN 201520868947 U CN201520868947 U CN 201520868947U CN 205102221 U CN205102221 U CN 205102221U
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- heat exchanger
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- low temperature
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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
本实用新型公开了一种深井低温核能供热堆安全换热系统，包括深水池，池底设有堆芯，由深水池、主热交换器、第一驱动泵构成第一回路循环系统，主热交换器用于与深水池内的水进行换热；由主热交换器、中间热交换器和第二驱动泵构成的第二回路循环系统，中间热交换器用于与主热交换器中的换热介质进行换热；由中间热交换器、第三驱动泵和供热网络构成的第三回路循环系统；工作时，第二回路循环系统中的水压大于第一回路循环系统的水压且小于第三回路循环系统的水压；一缓冲水罐通过压力阀连接在第二回路循环系统的管道上，缓冲水罐内设有液位计，液位计的输出端连接有控制器，控制器的输出端连接有报警器。该系统可防止核泄漏，安全可靠。
The utility model discloses a safe heat exchange system for a deep well low-temperature nuclear energy heating reactor, which comprises a deep water pool, and a reactor core is arranged at the bottom of the pool. The heat exchanger is used to exchange heat with the water in the deep pool; the second loop circulation system is composed of the main heat exchanger, the intermediate heat exchanger and the second drive pump, and the intermediate heat exchanger is used to exchange heat with the main heat exchanger The medium is used for heat exchange; the third loop circulation system is composed of the intermediate heat exchanger, the third driving pump and the heating network; when working, the water pressure in the second loop circulation system is greater than the water pressure of the first loop circulation system and less than The water pressure of the third loop circulation system; a buffer water tank is connected to the pipeline of the second loop circulation system through a pressure valve, a liquid level gauge is installed in the buffer water tank, and the output end of the liquid level gauge is connected to a controller, and the controller The output terminal is connected to an alarm. The system can prevent nuclear leakage and is safe and reliable.
Description
Technical field
The utility model relates to nuclear heating field, particularly the safe heat-exchange system of a kind of deep-well low temperature nuclear heating reactor.
Background technology
The Urban District Heating that nuclear heating is is thermal source with the energy of nuclear fission generation.It solves urban energy supply, alleviates transport pressure and eliminate a kind of new way of burning the environmental pollution that coal causes.
Existing deep-well low-temperature nuclear heat system, comprises a swimmer's pool, is provided with nuclear reactor core bottom pond, and reactor core heats the Chi Shui in swimmer's pool as the thermal source of heating system.After Chi Shui heating, carry out heat exchange with heat exchanger, finally enter city heat supply network.
But, due to the job stability of pipeline own, often can leak.Different from common heat supply pipeline, nuclear heating pipeline, once leak, can leak generation by adjoint kernel.Such as, if fruit heat exchanger tube cracking, the radioactivity pond water in swimmer's pool will inflow heat exchanger, and then flow in water-supply systems or warm net, causes larger harm to personal safety.
In view of this, special proposition the utility model.
Utility model content
The purpose of this utility model is to provide the safe heat-exchange system of a kind of deep-well low temperature nuclear heating reactor, can prevent nuclear leakage.
To achieve these goals, the safe heat-exchange system of a kind of deep-well low temperature nuclear heating reactor that the utility model provides, comprises swimmer's pool, is provided with reactor core at the bottom of pond, also comprise:
The first loop circulation system be made up of swimmer's pool, main heat exchanger, the first driving pump, described main heat exchanger is used for carrying out heat exchange with the water in swimmer's pool;
The second servo loop circulatory system be made up of main heat exchanger, intermediate heat exchanger and the second driving pump, described intermediate heat exchanger is used for carrying out heat exchange with the heat transferring medium in main heat exchanger;
The tertiary circuit circulatory system be made up of intermediate heat exchanger, the 3rd driving pump and heating network;
During work, the hydraulic pressure in the second servo loop circulatory system is greater than the hydraulic pressure of the first loop circulation system and is less than the hydraulic pressure of the tertiary circuit circulatory system;
One buffering water pot is connected to by pressure valve on the pipeline of the second servo loop circulatory system, and be provided with liquid level gauge in buffering water pot, the output of liquid level gauge is connected with controller, and the output of controller is connected with alarm.
Preferably, also wrap the control valve be arranged in second servo loop circulatory system pipeline, the output of controller is connected with control valve.
Preferably, described first driving pump, the second driving pump and the 3rd driving pump are variable frequency pump, during work, make the hydraulic pressure in the second servo loop circulatory system be greater than the hydraulic pressure of the first loop circulation system and be less than the hydraulic pressure of the tertiary circuit circulatory system by frequency conversion.
Preferably, also comprise spilling water collecting tank, described buffered water tank top or side wall upper part are provided with delivery port, and are communicated with described spilling water collecting tank by pipeline.
Preferably, described spilling water collecting tank inwall is provided with heat-insulation layer, is provided with nuclear radiation detection device in spilling water collecting tank inside, and the delivery port of spilling water collecting tank is connected to the feed water inlet of intermediate heat exchanger by valve.
Preferably, the degree of depth of described swimmer's pool is 10-40m.
The safe heat-exchange system of a kind of deep-well low temperature nuclear heating reactor that the utility model provides, comprise three loop circulation system, during work, in second servo loop, the hydraulic pressure of pipeline is greater than the first loop and is less than tertiary circuit, like this, when main heat exchanger pipeline cracking, because the hydraulic pressure in second servo loop is greater than the first loop, water only can be flowed in the first loop, prevent the radiation water in the first loop from leaking to second servo loop.Meanwhile, because in second servo loop, hydraulic pressure changes, pressure valve is opened, and buffering water pot liquid level declines, and tank gage detects that the liquid level backward controller that declines sends signal enabling alarm, prompting staff repairing.Based on similar principle, after tertiary circuit leaks, water flows into second servo loop, hydraulic pressure in second servo loop is increased, and pressure valve is opened after sensing variation in water pressure, and buffering water pot liquid level rises, detect backward controller through tank gage and send signal enabling alarm, prompting staff repairing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the safe heat-exchange system of deep-well low temperature nuclear heating reactor provided by the utility model;
Fig. 2 is the structural representation of the control section of the safe heat-exchange system of deep-well low temperature nuclear heating reactor provided by the utility model;
In figure:
1. swimmer's pool 2. main heat exchanger 3. first driving pump 4. reactor core 5. intermediate heat exchanger 6. 2 driving pump 7. the 3rd driving pump 8. cushions water pot 9. pressure valve 10. liquid level gauge 11. controller 12. alarm 13. control valve 14. spilling water collecting tank 15. nuclear radiation detection device
Detailed description of the invention
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1,2, the safe heat-exchange system of a kind of deep-well low temperature nuclear heating reactor that the utility model provides, comprises three cover loop circulation system, and the first loop circulation system comprises swimmer's pool 1, main heat exchanger 2 and the first driving pump 3.Wherein swimmer's pool 1 degree of depth is 10-40m, is provided with the reactor core 4 of nuclear reactor, as the thermal source of whole heating system at the bottom of pond.To retaining in swimmer's pool during work, by reactor core 4 heat temperature raising, main heat exchanger 2 is then made to carry out heat exchange with the water in swimmer's pool 1.
The second servo loop circulatory system is made up of main heat exchanger 2, intermediate heat exchanger 5 and the second driving pump 6, and intermediate heat exchanger 5 is for carrying out secondary heat exchange with the heat transferring medium in main heat exchanger 2.The tertiary circuit circulatory system is then made up of intermediate heat exchanger 5, the 3rd driving pump 7 and heating network (not marking in figure), and intermediate heat exchanger 5, after heat exchange, transfers heat to heating network, realizes city heat supply.
On the pipeline of the second servo loop circulatory system, be also circumscribed with a buffering water pot 8, buffering water pot 8 is connected with pipeline by pressure valve 9.Because pressure valve 9 itself has pressure sensor, control unit and executing agency, when the variation in water pressure in the second servo loop circulatory system being detected more than a threshold value, automatically can open, the second servo loop circulatory system is communicated with buffering water pot 8.Be provided with liquid level gauge 10 in buffering water pot 8, the output of liquid level gauge 10 is connected with controller 11, and the output of controller 11 is connected with alarm 12.
First driving pump 3, second driving pump 6 and the 3rd driving pump 7 can adopt variable frequency pump, during work, can by regulating the operating frequency of each driving pump, realize constant pressure water supply, and the hydraulic pressure during second servo loop is circulated is greater than the hydraulic pressure of the first loop circulation system and is less than the hydraulic pressure of the tertiary circuit circulatory system.Specifically, the pressure namely in main heat exchanger 2 is greater than the pressure in swimmer's pool 1, and the pressure in intermediate heat exchanger 5 is greater than the pressure in main heat exchanger 2.Like this, when the main heat exchanger 2 in the first loop circulation system ftractures, water in the circulatory system only can from second servo loop system flow to the first loop circulation system, prevent the radiation leaked water in swimmer's pool 1, simultaneously, pressure valve 9 is opened, second servo loop circulatory system pipeline is communicated with buffering water pot 8, the current direction second servo loop circulatory system in buffering water pot 8, liquid level gauge 10 senses that liquid level declines, send control signal by controller 11 to alarm 12, start and report to the police, prompting staff repairing.In like manner, if the pipeline in tertiary circuit ftractures, because hydraulic pressure is very high, recirculated water also can not leak in heating network, ensure that the safety of system, pressure valve 9 is opened simultaneously, make the circulating water flow in second servo loop circulatory system pipeline to cushioning water pot 8, liquid level gauge 10 detects that in buffering water pot 8, liquid level rises, and sends control signal by controller 11 to alarm 12, start and report to the police, prompting staff repairing.As further improvement, two alarms are set, or (such as alarm lamp comprises red LED lamp and blue led lamp to send two different alarm signals by an alarm, the light of different colours represents different alarm), the situation that one of them corresponding buffering water pot 8 liquid level rises, the situation that another corresponding buffering water pot 8 liquid level declines, like this, staff just can learn that in system, where there occurs pipeline cracking or reveals, and shortens the investigation time.
In the pipeline of the second servo loop circulatory system, be also provided with control valve 13,11 outputs of controller are connected with control valve 13.Just operationally, control valve 13 stays open state, when cushioning the liquid level in water pot 8 and changing, liquid level gauge 10 sends signal to controller 11, and controller 11 pairs of control valves 13 send control signal, control valve 13 is closed, block the second servo loop circulatory system, like this, can prevent along with leak time extends, be mixed into radiation water after the second servo loop circulatory system and the first loop circulation system pressure balance, improve the safety and stability of system.
As preferred scheme, delivery port is provided with at buffering water pot 8 top or side wall upper part, delivery port connects a spilling water collecting tank 14 by pipeline, when the tertiary circuit circulatory system occurs to leak, if instantaneous leak amount is excessive, instant water in buffering water pot 8 rises suddenly and sharply, hydraulic pressure increases suddenly may rack buffering water pot 8, although can prevent the above-described problem from occurring comparatively greatly if the volume of buffering water pot 8 is arranged, but when leaking not serious, because buffering water pot 8 volume is excessive, liquid level change is just not obvious, do not reach liquid level gauge 10 and the threshold value that liquid level changes can be detected, alarm signal cannot be sent.Therefore, be provided with separately a spilling water collecting tank 14 in this preferred scheme, when the water yield increases suddenly in buffering water pot 8, can spill in spilling water collecting tank 14, prevent buffering water pot 8 from being racked.In addition, the recirculated water in the circulatory system is collected during another effect of spilling water collecting tank 14, because recirculated water is operationally with partial heat, by arranging heat-insulation layer at spilling water collecting tank 14 inwall, it is incubated, and the delivery port of spilling water collecting tank 14 is connected to the feed water inlet (not marking in figure) of intermediate heat exchanger 5 by valve.After waiting to rush to repair, the water in spilling water collecting tank 14 can be returned heat exchange in the circulatory system, save the energy.
In addition, inventor finds when once accidental, when intrasystem pressure control unit breaks down, if the circulatory system is leaked, a small amount of radiation water can be mixed into (as the water in the first closed circuit and the 3rd closed circuit liquidates to the second closed circuit simultaneously) in spilling water collecting tank 14, therefore as improving further, spilling water collecting tank 14 inside is provided with nuclear radiation detection device 15, after repairing, sequence number carries out nuclear radiation detection to the water in spilling water collecting tank 14, qualifiedly just can return the circulatory system afterwards.
Above the safe heat-exchange system of deep-well low temperature nuclear heating reactor provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands core concept of the present utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (6)
1. the safe heat-exchange system of deep-well low temperature nuclear heating reactor, comprises swimmer's pool, is provided with reactor core at the bottom of pond, it is characterized in that, also comprise
The first loop circulation system be made up of swimmer's pool, main heat exchanger, the first driving pump, described main heat exchanger is used for carrying out heat exchange with the water in swimmer's pool;
The second servo loop circulatory system be made up of main heat exchanger, intermediate heat exchanger and the second driving pump, described intermediate heat exchanger is used for carrying out heat exchange with the heat transferring medium in main heat exchanger;
The tertiary circuit circulatory system be made up of intermediate heat exchanger, the 3rd driving pump and heating network;
During work, the hydraulic pressure in the second servo loop circulatory system is greater than the hydraulic pressure of the first loop circulation system and is less than the hydraulic pressure of the tertiary circuit circulatory system;
One buffering water pot is connected to by pressure valve on the pipeline of the second servo loop circulatory system, and be provided with liquid level gauge in buffering water pot, the output of liquid level gauge is connected with controller, and the output of controller is connected with alarm.
2. the safe heat-exchange system of deep-well low temperature nuclear heating reactor according to claim 1, is characterized in that, also wrap the control valve be arranged in second servo loop circulatory system pipeline, the output of controller is connected with control valve.
3. the safe heat-exchange system of deep-well low temperature nuclear heating reactor according to claim 1, it is characterized in that, described first driving pump, the second driving pump and the 3rd driving pump are variable frequency pump, during work, the hydraulic pressure in the second servo loop circulatory system is made to be greater than the hydraulic pressure of the first loop circulation system and to be less than the hydraulic pressure of the tertiary circuit circulatory system by frequency conversion.
4. the safe heat-exchange system of deep-well low temperature nuclear heating reactor according to claim 1, is characterized in that, also comprise spilling water collecting tank, and described buffered water tank top or side wall upper part are provided with delivery port, and is communicated with described spilling water collecting tank by pipeline.
5. the safe heat-exchange system of deep-well low temperature nuclear heating reactor according to claim 4, it is characterized in that, described spilling water collecting tank inwall is provided with heat-insulation layer, is provided with nuclear radiation detection device in spilling water collecting tank inside, and the delivery port of spilling water collecting tank is connected to the feed water inlet of intermediate heat exchanger by valve.
6. the safe heat-exchange system of deep-well low temperature nuclear heating reactor according to claim 1, is characterized in that, the degree of depth of described swimmer's pool is 10-40m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520868947.4U CN205102221U (en) | 2015-11-03 | 2015-11-03 | Deep well low temperature nuclear heating reactor safety heat transfer system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520868947.4U CN205102221U (en) | 2015-11-03 | 2015-11-03 | Deep well low temperature nuclear heating reactor safety heat transfer system |
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| CN205102221U true CN205102221U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520868947.4U Expired - Fee Related CN205102221U (en) | 2015-11-03 | 2015-11-03 | Deep well low temperature nuclear heating reactor safety heat transfer system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387506A (en) * | 2015-11-03 | 2016-03-09 | 徐刚 | Safety heat exchange system of deep well low-temperature nuclear heating reactor |
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2015
- 2015-11-03 CN CN201520868947.4U patent/CN205102221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387506A (en) * | 2015-11-03 | 2016-03-09 | 徐刚 | Safety heat exchange system of deep well low-temperature nuclear heating reactor |
| CN105387506B (en) * | 2015-11-03 | 2019-05-28 | 启迪新核（北京）能源科技有限公司 | The safe heat-exchange system of deep-well low temperature nuclear heating reactor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160426 Address after: 100094, Beijing, Haidian District, Zhongguancun northeast Beijing Software Park Incubator Building 2, block 2140-099, room B Patentee after: XINHE (BEIJING) ENERGY TECHNOLOGY CO.,LTD. Address before: 100193, Beijing, Haidian District, Zhongguancun northeast Beijing Software Park Incubator Building 2, block 2140-099, room B Patentee before: Xu Gang Patentee before: Tian Li |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171127 Address after: 100085 A, No. 9, Third Street, Shanghai Haidian District, Beijing, 9 layer A1003-105 Patentee after: QIDI NEW NUCLEAR (BEIJING) ENERGY TECHNOLOGY Co.,Ltd. Address before: 100094, Beijing, Haidian District, Zhongguancun northeast Beijing Software Park Incubator Building 2, block 2140-099, room B Patentee before: XINHE (BEIJING) ENERGY TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 |
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| CF01 | Termination of patent right due to non-payment of annual fee |