CN211528299U - Thermal aging monitoring system for high-temperature gas cooled reactor ceramic reactor internal component - Google Patents
Thermal aging monitoring system for high-temperature gas cooled reactor ceramic reactor internal component Download PDFInfo
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- CN211528299U CN211528299U CN201922220394.2U CN201922220394U CN211528299U CN 211528299 U CN211528299 U CN 211528299U CN 201922220394 U CN201922220394 U CN 201922220394U CN 211528299 U CN211528299 U CN 211528299U
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- temperature gas
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- thermal aging
- cooled reactor
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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
Abstract
The utility model relates to a high temperature gas cooled reactor pottery is piled internal member thermal ageing monitoring system, the cooling gas export of high temperature gas cooled reactor and helium purifier pass through the recovery pipeline butt joint intercommunication, monitoring mechanism includes cooling gas sampling unit, carries out the detecting element that online real-time detection was carried out to the cooling gas that cooling gas sampling device adopted, cooling gas sampling unit and recovery pipeline butt joint intercommunication; the monitoring mechanism adopts an online gas chromatograph and an online dew point instrument to monitor the content of impurities in helium at the outlet of the reactor, and has quick response and high detection precision.
Description
Technical Field
The utility model relates to a high temperature gas cooled piles hot ageing monitoring system of ceramic reactor internals.
Background
The ceramic reactor internals (graphite and carbon bricks) in the high temperature gas cooled reactor are cylinders with reactor core cavities, which are composed of tens of thousands of graphite and carbon reactor internals, are one of the important components of the high temperature gas cooled reactor, and are simultaneously influenced by factors such as temperature, irradiation, stress, corrosion and the like during operation. Although helium as a high-temperature reactor coolant is an inert gas, the helium is inevitably mixed with O due to factors such as air adsorption of reactor internals, migration of fuel element gas phase fission products, water vapor leakage, new helium impurity carrying and the like2、H2O、CO2And the like; under the condition of steam generator heat transfer tube leakage accident, a large amount of H will be generated2And O enters the reactor. The impurities can react with the ceramic reactor internals at high temperature to cause the physical and mechanical properties to change, thereby influencing the safe and stable operation of the nuclear power station.
The invention patent 201310418422.6 discloses a high temperature gas cooled reactor tail gas sampling device, which comprises a high temperature gas cooled reactor, wherein the output end of the high temperature gas cooled reactor is connected with a sampling section, the output end of the sampling section is connected with a rod sleeve, the left part of the rod sleeve is fixed through an isolating device, the middle part of the rod sleeve is provided with an electric valve, one end of the rod sleeve is connected with the sampling section, the other end of the rod sleeve is connected with a transmission motor, the right part of the rod sleeve is fixed through a first supporting rod, and the transmission motor is fixed through; the utility model discloses during the use, the sample section links to each other with high temperature gas cooling experiment nuclear reactor tail gas (helium) export, and when will realizing the sample, the sample filter sieve is pushed by the piston and is carried out the auto-lock to the tail gas export, then the gas is emitted in the cold nuclear reaction tail gas export of high temperature gas, realizes the circulation through the back flow, and the sample of high temperature helium impurity in through the sample filter sieve realization tail gas is pulled out backward through actuating mechanism at last, can reach drive and the convenient purpose of sample. This patent describes that the sample of tail gas impurity is carried out through mechanical structure's motion mode, and the follow-up detection is being carried out after the sample, and the substep is gone on, can not realize reactor tail gas real-time on-line monitoring and detection, and emergency treatment lags behind when causing the condition to be unusual, and in addition, its structure sets up complicatedly, and the sample operation is also very troublesome, causes the detection cost to drop into high.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art and providing a high temperature gas cooled piles pottery internals thermal ageing monitoring system.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a high temperature gas cooled piles pottery internals thermal ageing monitoring system, the cooling gas export of high temperature gas cooled piles and helium purifier pass through the recovery pipeline butt joint intercommunication, and monitoring mechanism includes cooling gas sampling unit, carries out the detecting element of online real-time detection to the cooling gas that cooling gas sampling device adopted, and cooling gas sampling unit and recovery pipeline butt joint intercommunication.
Preferably, the detection unit comprises an online gas chromatograph for detecting different gas contents in the cooling gas of the high-temperature gas cooled reactor in real time.
Preferably, the on-line gas chromatograph is configured for real-time detection of H2、CO、CO2、CH4、N2PDD detector of content and method for detecting O2TCD detector of content.
Preferably, the detection unit further comprises an online dew-point meter for detecting the humidity of the cooling gas of the high-temperature gas cooled reactor in real time.
Preferably, the dew point meter employs a ceramic humidity sensor.
Preferably, the detection unit further comprises a computer in signal connection with the online gas chromatograph and the online dew point meter.
Preferably, the sampling unit includes the sampling pipeline, locate on the sampling pipeline and along the relief pressure valve, manometer and the flowmeter that gas flow direction set gradually.
Preferably, the sampling unit further comprises a Y-filter disposed on the sampling pipe and located between the flow meter and the pressure gauge.
Preferably, the sampling unit further comprises a needle stop valve arranged on the sampling pipeline and positioned between the Y-shaped filter and the pressure gauge.
Preferably, an electric valve is arranged upstream of the connection of the sampling pipeline and the recovery pipeline.
Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses a high temperature gas cooled piles pottery and piles interior member thermal ageing monitoring system adopts impurity content in online gas chromatograph and the helium of online dew point hygrometer monitoring reactor exit, and the response is rapid, detects the precision height.
Drawings
Fig. 1 is a schematic view of the overall structure of the monitoring mechanism of the present invention;
wherein: 1. a sampling pipe; 2. a pressure reducing valve; 3. a pressure gauge; 4. a needle-type stop valve; 5. a Y-type filter; 6. a flow meter; 7. an online gas chromatograph; 8. an online dew point meter; 9. a computer; 10. high temperature gas cooled reactor; 11. an electrically operated valve; 12. a helium purifier.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, a thermal aging monitoring system for a high temperature gas cooled reactor 10 ceramic reactor internal component is characterized in that a cooling gas outlet of the high temperature gas cooled reactor 10 is in butt joint communication with a helium purifier 12 through a recovery pipeline, a monitoring mechanism comprises a cooling gas sampling unit and a detection unit for performing online real-time detection on cooling gas acquired by a cooling gas sampling device, and the cooling gas sampling unit is in butt joint communication with the recovery pipeline. An electric valve 11 is arranged at the upstream of the connection part of the sampling pipeline 1 and the recovery pipeline.
Specifically, the detection unit comprises an online gas chromatograph 7 for detecting the content of different gases in the cooling gas of the high temperature gas cooled reactor 10 in real time, an online dew point instrument 8 for detecting the humidity of the cooling gas of the high temperature gas cooled reactor 10 in real time, and a computer 9 in signal connection with the online gas chromatograph 7 and the online dew point instrument 8.
An on-line gas chromatograph 7 adopts a dual-channel design and is provided with 1 PDD detector for detecting H2、CO、CO2、CH4、N2Content, 1 TCD Detector for O2The content and the detection limit are respectively as follows: h2(4ppmv)、CO(4ppmv)、CO2(4ppmv)、CH4(4ppmv)、N2(1.5ppmv)、O2(1.5 ppmv). The online dew point meter 8 consists of a ceramic humidity sensor and a collecting instrument, and the response time is as follows: 1min, detection range: -100 +/-20 ℃ dew point (0-3000 ppmv), precision: dew point of + -2 ℃. In addition, the online gas chromatograph 7 and the online dew point meter 8 are both provided with a data communication interface and a sensor measurement interface, and the data communication interface is used for being connected with a computer 9 to perform monitoring parameter setting, monitoring data recording, chart drawing and the like.
Further, the sampling unit includes sampling pipe 1, locate sampling pipe 1 on and along the relief pressure valve 2 that the gas flow direction set gradually (be used for reducing the cooling gas to suitable pressure), manometer 3, needle stop valve 4 (when needing to stop monitoring, the collection pipeline is directly closed to accessible needle stop valve 4), Y type filter 5 (be arranged in with the solid impurity that is mingled with in the cooling filter) and flowmeter 6.
To sum up, the utility model discloses a high temperature gas cooled reactor pottery internals thermal aging monitoring system adopts online gas chromatograph and online dew point hygrometer to monitor the impurity content in the helium of reactor exit, and the response is rapid, and detection accuracy is high;
after a series of detection data are obtained by a computer, the monitoring data are integrated, the total output of impurities in an integration period can be obtained, and data support is provided for the subsequent construction of a mathematical mold core, the mastering of the thermal aging state of the ceramic reactor internal member and the safe and stable operation of a power station.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A high temperature gas cooled reactor ceramic reactor internal member thermal aging monitoring system is characterized in that: the monitoring system comprises a cooling gas sampling unit and a detection unit for carrying out online real-time detection on the cooling gas acquired by the cooling gas sampling device, and the cooling gas sampling unit is in butt joint communication with the recovery pipeline.
2. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 1, wherein: the detection unit comprises an online gas chromatograph used for detecting the content of different gases in the cooling gas of the high-temperature gas cooled reactor in real time.
3. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 2, wherein: the on-line gas chromatograph is configured for real-time detection of H2、CO、CO2、CH4、N2PDD detector of content and method for detecting O2TCD detector of content.
4. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 2, wherein: the detection unit also comprises an online dew-point meter for detecting the humidity of the cooling gas of the high-temperature gas cooled reactor in real time.
5. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 4, wherein: the dew point meter adopts a ceramic humidity sensor.
6. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 4, wherein: the detection unit also comprises a computer which is in signal connection with the online gas chromatograph and the online dew point instrument.
7. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 1, wherein: the sampling unit comprises a sampling pipeline, a pressure reducing valve, a pressure gauge and a flowmeter, wherein the pressure reducing valve, the pressure gauge and the flowmeter are arranged on the sampling pipeline and are sequentially arranged along the gas flowing direction.
8. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 7, wherein: the sampling unit also comprises a Y-shaped filter which is arranged on the sampling pipeline and is positioned between the flowmeter and the pressure gauge.
9. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 8, wherein: the sampling unit also comprises a needle-shaped stop valve which is arranged on the sampling pipeline and is positioned between the Y-shaped filter and the pressure gauge.
10. The system for monitoring thermal aging of the ceramic reactor internals of the high temperature gas cooled reactor according to claim 7, wherein: an electric valve is arranged at the upstream of the connection part of the sampling pipeline and the recovery pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922220394.2U CN211528299U (en) | 2019-12-12 | 2019-12-12 | Thermal aging monitoring system for high-temperature gas cooled reactor ceramic reactor internal component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922220394.2U CN211528299U (en) | 2019-12-12 | 2019-12-12 | Thermal aging monitoring system for high-temperature gas cooled reactor ceramic reactor internal component |
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| CN211528299U true CN211528299U (en) | 2020-09-18 |
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| CN201922220394.2U Active CN211528299U (en) | 2019-12-12 | 2019-12-12 | Thermal aging monitoring system for high-temperature gas cooled reactor ceramic reactor internal component |
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Effective date of registration: 20210820 Address after: No. 1788, West Ring Road, Gusu District, Suzhou City, Jiangsu Province, 215004 Patentee after: SUZHOU NUCLEAR POWER Research Institute Patentee after: HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER Co.,Ltd. Address before: 215004 No. 1788, West Ring Road, Suzhou, Jiangsu Patentee before: SUZHOU NUCLEAR POWER Research Institute Patentee before: CHINA GENERAL NUCLEAR POWER Corp. Patentee before: CGN POWER Co.,Ltd. Patentee before: HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER Co.,Ltd. |
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