CN204926803U - Monitoring system that main steam pipe way leaked is prevented to nuclear power station - Google Patents
Monitoring system that main steam pipe way leaked is prevented to nuclear power station Download PDFInfo
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- CN204926803U CN204926803U CN201520624469.2U CN201520624469U CN204926803U CN 204926803 U CN204926803 U CN 204926803U CN 201520624469 U CN201520624469 U CN 201520624469U CN 204926803 U CN204926803 U CN 204926803U
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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 provides a monitoring system that main steam pipe way leaked is prevented to nuclear power station, the utility model discloses say with reactor coolant loop and main steam pipe in traditional nuclear power station that leakage monitoring system is different, at the outside cover tubular construction that adopts of main steam pipe way, utilize the sleeve pipe to say at main steam pipe that the outside forms annular airtight space, the airtight space of annular pressure is less than the interior lateral pressure of main steam pipe way, the airtight space of annular is as the district of containing of main steam pipe way leakage, simultaneously annular airtight space settings like the monitoring devices of pressure sensor and hygrometer, can monitor the main steam pipe way takes place to leak, simultaneously calculate the leakage rate and send the warning by leakage rate calculation module, thereby remind operator to pay close attention to the running state of unit, so that it judges to make the exact, take certain measure in case of necessity, for moving, unit safety provides the support.
Description
Technical field
The utility model relates to the monitoring system that the anti-main steam line of a kind of nuclear power station leaks.
Background technology
In design of nuclear power plant, require, to reactor coolant loop and important piping system, there is leak detection capabilities.For reactor coolant pressure boundary, its leakage monitoring method mainly contains containment sump level monitoring, reactor coolant loop loading amount balance and the monitoring of containment atmospheric radioactivity.In addition, the leakage of containment inner fluid can also detect in power plant by householder methods such as containment atmospheric pressure, temperature and humidity, visual examinations.For the leak of liquid on reactor pressure border, being used alone or in combination of above-mentioned detection method can reach reasonable effect.
For the main steam line in containment, due to the existence of heat-insulation layer, leak fluid may all or part ofly be condensate in heat-insulation layer, and above-mentioned monitoring method, measuring accuracy and the response time mentioned all has some limitations.
Utility model content
The purpose of this utility model is to provide a kind of nuclear power station monitoring system that anti-main steam line leaks, and automatically can monitor the situation that main steam line occurs to leak.
For solving the problem, the utility model provides a kind of nuclear power station monitoring system that anti-main steam line leaks, and comprising:
Be arranged on the sleeve pipe of main steam line outside, described sleeve pipe forms annular sealed space outside main steam line, described annular sealed space pressure lower than main steam line inside pressure, the containing district that described annular sealed space leaks as main steam line;
Be arranged on the monitoring device of annular sealed space, for obtaining the parameter calculating slip;
The display module be connected with described monitoring device, for showing the parameter calculating slip.
Further, in said system, described system also comprises:
The slip computing module be connected with described monitoring device, calculates slip for the parameter according to the calculating slip obtained.
Further, in said system, described system also comprises:
The display be connected with described slip computing module and alarm module, for showing slip and reporting to the police.
Further, in said system, described system also comprises:
Be arranged on the safety valve of annular sealed space, for preventing superpressure.
Further, in said system, described monitoring device comprises:
Pressure transducer, for monitoring pressure, and as calculating the parameter of slip.
Further, in said system, described monitoring device also comprises:
Temperature sensor, for monitor temperature, and as calculating the parameter of slip.
Further, in said system, described monitoring device also comprises:
Hygrometer, for monitoring humidity, and as calculating the parameter of slip.
Compared with prior art, the utility model is different with main steam line leakage monitoring system from reactor coolant loop in traditional core power station, sleeve structure is adopted in main steam line outside, sleeve pipe is utilized to form annular sealed space outside main steam line, annular sealed space pressure is lower than main steam line inside pressure, the containing district that annular sealed space leaks as main steam line, annular sealed space is provided with as pressure transducer and hygroscopic monitoring device simultaneously, main steam line can be monitored leak, calculate slip by slip computing module simultaneously and send warning, thus remind operator to pay close attention to the running status of unit, to make correct judgement, take certain measure if desired, for unit safety operation provides support.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the main steam line of the monitoring system that the anti-main steam line of nuclear power station of the utility model one embodiment leaks;
Fig. 2 is the sectional view of the main steam line of Fig. 1;
Fig. 3 is the structural drawing of the monitoring system that the anti-main steam line of nuclear power station of the utility model one embodiment leaks.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 3, the utility model provides a kind of nuclear power station monitoring system that anti-main steam line leaks, and comprising:
Be arranged on the sleeve pipe 2 of main steam line 1 outside, described sleeve pipe 2 forms annular sealed space 3 outside main steam line, described annular sealed space 3 pressure lower than main steam line 1 inside pressure, the containing district that described annular sealed space 3 leaks as main steam line 1;
Be arranged on the monitoring device of annular sealed space 3, for obtaining the parameter calculating slip;
The display module 11,13 be connected with described monitoring device, for showing the parameter calculating slip.The present embodiment is different with main steam line leakage monitoring system from reactor coolant loop in traditional core power station, sleeve structure is adopted in main steam line outside, sleeve pipe is utilized to form annular sealed space outside main steam line, at annular sealed space pressure lower than main steam line inside pressure, the containing district that annular sealed space leaks as main steam line, annular sealed space is provided with as pressure transducer and hygroscopic monitoring device simultaneously, can monitor the situation that main steam line occurs to leak.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described system also comprises:
The slip computing module 10 be connected with described monitoring device, calculates slip for the parameter according to the calculating slip obtained.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described system also comprises:
The display be connected with described slip computing module 10 and alarm module 12, for showing slip and reporting to the police.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described system also comprises:
Be arranged on the safety valve 5 of annular sealed space 3, for preventing superpressure.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described monitoring device comprises:
Pressure transducer 7, for monitoring pressure, and as calculating the parameter of slip.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described monitoring device also comprises:
Temperature sensor 6, for monitor temperature, and as calculating the parameter of slip.
Preferably, as shown in Figure 3, in monitoring system one preferred embodiment that the anti-main steam line of the utility model nuclear power station leaks, described monitoring device also comprises:
Hygrometer 9, for monitoring humidity, and as calculating the parameter of slip.
Concrete, in Fig. 1 ~ 3,1 is main steam line, and 2 is sleeve pipe, and 3 is annular sealed space, and 4 is release pipeline, and 5 is safety valve, and 6 is temperature sensor, and 7 is pressure transducer, and 8 is transmission cable, and 9 is hygrometer, and 10 is slip computing module; 11,13 is display module, and 12 is display alarm and module.
In order to understand the utility model more clearly, below for the operation of nuclear power station and leakage monitoring, composition graphs 1 leaks the anti-main steam line of nuclear power station of the present utility model and the design implementing to monitor is described further.
The anti-main steam line of nuclear power station leaks and the design implementing to monitor is monitored main steam line 1 leakage, mainly comprises sleeve pipe 2, overpressure protection apparatus (4,5), instrument and cable (6,7,8,9) and corresponding calculating, display, controls and alarm module (10,11,12,13).During nuclear power plant's Installation and Debugging, above-mentioned sleeve pipe 2 and relevant device, instrument are installed together with main steam line with module.When nuclear power plant normally runs, monitor temperature, pressure and the humidity in annular sealed space 3 by temperature sensor 6, pressure transducer 7 and the hygrometer 9 be arranged on sleeve pipe 2, and show (11,13) on corresponding display module.
When main steam line 1 occurs to leak, the steam leaked enters annular sealed space 3, and is inclusive in this space, and the pressure now in annular sealed space 3, humidity increase, monitored by pressure transducer 7 and hygrometer 9, synchronously show in display module 11 and 13.Pressure, humidity enter slip computing module 10 together with the temperature signal of temperature sensor 6, by obtaining the slip of main steam after calculating, slip display in display and alarm module 12 simultaneously, and send warning, remind operator's main steam line 1 to leak, necessary measure should be taked.
In addition, the anti-main steam line of nuclear power station of the present utility model leaks and the design implementing to monitor also is provided with release pipeline 4 and safety valve 5, when the pressure in annular closed region 3 exceeds safety valve 5 setting value, by safety valve 5 release, thus prevents superpressure.
Said process utilizes sleeve pipe, contains, and monitor slip main steam line leak fluid, and can calculate slip more accurately, for operator's monitoring leakage and employing measure provide means and support, has good accuracy and reliability.
The connection of former components is only exemplary illustration of the present utility model and non-limitative illustration, also can be other connected modes.
In sum, the utility model is different with main steam line leakage monitoring system from reactor coolant loop in traditional core power station, sleeve structure is adopted in main steam line outside, sleeve pipe is utilized to form annular sealed space outside main steam line, annular sealed space pressure is lower than main steam line inside pressure, the containing district that annular sealed space leaks as main steam line, annular sealed space is provided with as pressure transducer and hygroscopic monitoring device simultaneously, main steam line can be monitored leak, calculate slip by slip computing module simultaneously and send warning, thus remind operator to pay close attention to the running status of unit, to make correct judgement, take certain measure if desired, for unit safety operation provides support.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. a monitoring system for the anti-main steam line leakage of nuclear power station, is characterized in that, comprising:
Be arranged on the sleeve pipe of main steam line outside, described sleeve pipe forms annular sealed space outside main steam line, described annular sealed space pressure lower than main steam line inside pressure, the containing district that described annular sealed space leaks as main steam line;
Be arranged on the monitoring device of annular sealed space, for obtaining the parameter calculating slip;
The display module be connected with described monitoring device, for showing the parameter calculating slip.
2. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 1, it is characterized in that, described system also comprises:
The slip computing module be connected with described monitoring device, calculates slip for the parameter according to the calculating slip obtained.
3. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 2, it is characterized in that, described system also comprises:
The display be connected with described slip computing module and alarm module, for showing slip and reporting to the police.
4. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 1, it is characterized in that, described system also comprises:
Be arranged on the safety valve of annular sealed space, for preventing superpressure.
5. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 1, it is characterized in that, described monitoring device comprises:
Pressure transducer, for monitoring pressure, and as calculating the parameter of slip.
6. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 5, it is characterized in that, described monitoring device also comprises:
Temperature sensor, for monitor temperature, and as calculating the parameter of slip.
7. the monitoring system of the anti-main steam line leakage of nuclear power station as claimed in claim 5, it is characterized in that, described monitoring device also comprises:
Hygrometer, for monitoring humidity, and as calculating the parameter of slip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624469.2U CN204926803U (en) | 2015-08-18 | 2015-08-18 | Monitoring system that main steam pipe way leaked is prevented to nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520624469.2U CN204926803U (en) | 2015-08-18 | 2015-08-18 | Monitoring system that main steam pipe way leaked is prevented to nuclear power station |
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| CN204926803U true CN204926803U (en) | 2015-12-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070332A (en) * | 2015-08-18 | 2015-11-18 | 上海核工程研究设计院 | Monitoring system for preventing leakage of main steam pipeline in nuclear power plant |
| CN105757456A (en) * | 2016-03-25 | 2016-07-13 | 金泽核创（北京）国际能源技术服务有限公司 | Online leakage monitoring system for main steam pipeline in nuclear power plant |
| CN106870959A (en) * | 2017-04-05 | 2017-06-20 | 北京蓝宇天翔环境科技有限公司 | A kind of new hot pipe network leakage monitoring device |
-
2015
- 2015-08-18 CN CN201520624469.2U patent/CN204926803U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070332A (en) * | 2015-08-18 | 2015-11-18 | 上海核工程研究设计院 | Monitoring system for preventing leakage of main steam pipeline in nuclear power plant |
| CN105757456A (en) * | 2016-03-25 | 2016-07-13 | 金泽核创（北京）国际能源技术服务有限公司 | Online leakage monitoring system for main steam pipeline in nuclear power plant |
| CN105757456B (en) * | 2016-03-25 | 2018-04-03 | 孙静 | A kind of nuclear power plant's main steam line leaks on-line monitoring system |
| CN106870959A (en) * | 2017-04-05 | 2017-06-20 | 北京蓝宇天翔环境科技有限公司 | A kind of new hot pipe network leakage monitoring device |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |