CN203338771U - Air radioactivity monitoring device - Google Patents
Air radioactivity monitoring device Download PDFInfo
- Publication number
- CN203338771U CN203338771U CN2013204574241U CN201320457424U CN203338771U CN 203338771 U CN203338771 U CN 203338771U CN 2013204574241 U CN2013204574241 U CN 2013204574241U CN 201320457424 U CN201320457424 U CN 201320457424U CN 203338771 U CN203338771 U CN 203338771U
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- Prior art keywords
- air
- nuclear power
- containment
- unit
- detector
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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 relates to an air radioactivity monitoring device which is used for monitoring radioactivity activity of air in a safety shell of a nuclear power plant. Monitoring is performed with a continuous detection manner through an ionization chamber, relevant detection data are connected with a data net of the nuclear power plant, and therefore networking of automation of the monitoring process and the data detection is achieved. An alarm system is connected with a valve of the safety shell, and when radioactivity of the air in the safety shell exceeds the standard, the alarm system automatically closes the valve of the safety shell. An on-site processing and displaying unit can process and display the detection data in an on-site mode, therefore, the burden of a central control system is relieved, and design of the whole system is more reasonable.
Description
Technical field
The utility model relates to nuclear radiation measurement and nuclear power station field of intelligent control, more particularly, relates to a kind of air radioactive monitoring device.
Background technology
Current nuclear power station air radioactive monitoring device adopts on-site sampling off-line monitoring mode to carry out radioactivity monitoring, this mode is relatively backward, because the sampling equipment needed is more, therefore equipment failure rate is high, need more maintenance work, and measurement range is less, measuring accuracy is not high, and the relevant Monitoring Data record of can not networking, be unfavorable for analyzing judgement and preserving by computing machine.
Summary of the invention
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, designs a kind of air radioactive monitoring device, for monitoring the radioactivity of air in nuclear power plant containment shell, adopts ionization chamber continuous coverage mode to be monitored.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of air radioactive monitoring device, for monitoring the radioactivity of air in nuclear power plant containment shell, adopt ionization chamber continuous monitoring mode to be monitored.
Preferably, described air radioactive monitoring device comprises for the containment as measurement target, be used to detector that the ionization chamber of optimum measurement environment is provided, aspiration pump for extracting air in containment, be used to the consumer unit of described aspiration pump power supply, filtrator for filtered air, radioactive indicator for air in the described containment of Real-Time Monitoring, and the signal of generation is passed to the detector of processes and displays unit on the spot, be used for real-time reception & disposal and transmit the signal that described detector produces, and the unit of processes and displays on the spot of demonstration radiological measuring result, for gathering the also nuclear power station central data acquisition system of each system service data of storage administration nuclear power station, control systems of nuclear power plant for each system operation of Comprehensive Control nuclear power station, for receiving data the long-range demonstration radiological measuring result of the transmission of described processes and displays on the spot unit, transfer data to the concentrated rack of described control systems of nuclear power plant and described nuclear power station central data acquisition system simultaneously.Described aspiration pump, consumer unit, filtrator, detector, the processes and displays unit all is positioned at described ionization chamber on the spot, described consumer unit is connected with described aspiration pump, described aspiration pump communicates by pipeline with described detector, described detector communicates by pipeline with described filtrator, described filtrator communicates by pipeline with described containment, described detector also by cable with regard to earth signal processes and displays unit, be connected.
Preferably, described processes and displays on the spot unit is provided with electric source line interface and RS485 interface, described processes and displays on the spot is connected with described terminal box by these two interfaces, described terminal box also is provided with electric source line interface and RS485 interface, and described terminal box is connected with described concentrated rack by these two interfaces.
Preferably, described control systems of nuclear power plant comprises when air radioactive being detected at described detector and exceed standard, and automatically closes warning system and the master-control room of described containment valve.
Preferably, described containment comprises the containment valve, and described warning system is connected with described containment valve, and when described detector detects air radioactive and exceeds standard, described warning system is closed described containment valve automatically.
Preferably, described concentrated rack be positioned at described ionization chamber separate predetermined safe distance pulpit, described concentrated rack is for installing the assembly that focuses on of monitoring channel concentratedly, and can complete monitoring channel report to the police forbid, power supply dispensing, the combination of alerting signal, parameter modification, data show and the function such as mutual.Described concentrated rack is also the maincenter of system external interface simultaneously, and the input and output of switching value, analog quantity, communication port and power supply that system is all are unified relevant by concentrated rack.Described concentrated rack is provided with the RS485 output port, by described port, signal is transferred to described central data acquisition system, described concentrated rack comprises remote display unit, described remote display unit is provided with switching value output port and analog output port, by described switching value output port, with the analog output port, with described control systems of nuclear power plant, be connected, by described switching value output port, the switching value signal is transferred to the warning system in described control systems of nuclear power plant, by described analog output port, analog signals is transferred to the master-control room in described control systems of nuclear power plant.Described warning system is connected with the valve of described containment, and when described detector detects air radioactive and exceeds standard, described warning system is closed the valve of described containment automatically, prevents that radiomaterial in containment is to external diffusion.
Preferably, under the effect of described aspiration pump, air in described containment is after described filtrator filters, flow in described detector, the radioactivity of described detector Real-Time Monitoring air, and will detect communication to described processes and displays on the spot unit, to detect communication to described concentrated rack by described terminal box, by concentrating rack will detect communication to described central data acquisition system, to detect communication to described control systems of nuclear power plant by the remote display unit in described concentrated rack, remote display unit is provided with switching value output port and the analog output port be connected with described control systems of nuclear power plant, by described switching value output port, the switching value signal is transferred to the warning system in described control systems of nuclear power plant and triggers and be distributed in nuclear power station electronic alarm devices at different levels everywhere, by described analog output port, analog signals is transferred to the master-control room in described control systems of nuclear power plant.Described warning system can be carried out Real-time Feedback to described detector, if the detection information of described detector shows air radioactive and surpasses the setting index, described warning system can send instruction to described detector, close the valve of described containment, prevent that the interior radiomaterial of described containment is to external diffusion.
Air radioactive monitoring device of the present utility model adopts the mode of ionization chamber continuous monitoring to be monitored, improved significantly security, and increased measurement range, measuring accuracy and efficiency have been improved, relevant Monitoring Data is connected with the data network of nuclear power station, has realized the robotization of detection process and the networking of measurement data, on the spot processes and displays unit processes and displays detection data on the spot, alleviate the burden of central control system, made the design of whole system more reasonable.
The accompanying drawing explanation
Fig. 1 is the structural drawing of the air radioactive monitoring device of the utility model preferred embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The utility model is applicable to nuclear power station air radioactive monitoring, comprises with lower component: ionization chamber T, aspiration pump A, consumer unit B, containment 1, containment valve 11, filtrator 2, detector 3, on the spot processes and displays unit 4, electric source line interface 41, RS485 interface 42, terminal box 5, electric source line interface 51, RS485 interface 52, concentrate rack 6, remote display unit 61, switching value interface 611, analog quantity interface 612, RS485 interface 62, central data acquisition system 7, control systems of nuclear power plant 8, warning system 81, master-control room 82.
Wherein, consumer unit B is aspiration pump A power supply, under the effect of aspiration pump A, air in containment 1 filters through pipeline flow-direction filtrator 2, air after filtering continues flow-direction probe 3, detector 3 detects in real time the radioactivity of air and will detect communication and arrive processes and displays unit 4 on the spot, processes and displays unit 4 is provided with electric source line interface 41 and RS485 interface 42 on the spot, by these two interfaces, with terminal box 5, be connected, terminal box 5 is provided with electric source line interface 51 and RS485 interface 52, by these two interfaces, with concentrated rack 6, be connected, concentrate rack 6 be positioned at the discharging of waste liquid pipeline separate predetermined safe distance pulpit, concentrate in rack 6 and be provided with remote display unit 61, concentrate rack 6 also to be provided with RS485 output port 62, by this port, signal is transferred to central data acquisition system 7, remote display unit 61 is provided with switching value output port 611 and analog output port 612, by these two ports, with control systems of nuclear power plant 8, be connected, by switching value output port 611, the switching value signal is transferred to the warning system 81 in control systems of nuclear power plant 8, by described analog output port 612, analog signals is transferred to the master-control room 82 in nuclear power station data network Digitizing And Control Unit 8, warning system 81 is connected with containment valve 11, when detector 3 detects air radioactive and exceeds standard, warning system 81 self-closing safety shell valves 11, prevent that the interior radiomaterial of containment 1 is to external diffusion.
As preferred implementation, filtrator 2 can be comprised of ventilation filter, but the airborne dust of filtering, detector 3 can be comprised of the gaseous radioactivity material detection instrument be arranged in ionization chamber T, the cable that detector 3 is 5 meters left and right by a segment length is connected with processes and displays unit 4 on the spot, aspiration pump A, consumer unit B, filtrator 2, detector 3, processes and displays unit 4 all is installed in ionization chamber T on the spot, remote display unit 61 forms by being installed on data processor and the display concentrated in rack 6, concentrate rack 6 be positioned at ionization chamber T separate predetermined safe distance pulpit, for installing the assembly that focuses on of monitoring channel concentratedly, and complete monitoring channel source inspection, warning is forbidden, the power supply dispensing, the functions such as the combination of alerting signal.Concentrate rack 6 is also the maincenter of system external interface simultaneously, and the input and output of switching value, analog quantity, communication port and power supply that system is all are unified relevant by concentrated rack.Master-control room 82 is comprised of the Pan Tai, display and the controller that have than strength reason ability, on containment valve 11, controller is housed, warning system 81 can be connected with the controller on containment valve 11 by cable, when detector 3 detects air radioactive and exceeds standard, warning system 81 is sent instruction to the controller on containment valve 11, self-closing safety shell valve 11, prevent that the interior radiomaterial of containment 1 is to external diffusion.
Under the effect of aspiration pump A, air in containment 1 is after filter 2 filters, flow in detector 3, the radioactivity of detector 3 Real-Time Monitoring air, and will detect communication and give processes and displays unit 4 on the spot, processes and displays unit 4 will detect communication to concentrating rack 6 by terminal box 5 on the spot, concentrate rack 6 will detect communication to nuclear power station central data acquisition system 7, concentrate the remote display unit 61 in rack 6 will detect communication to control systems of nuclear power plant 8, remote display unit 61 is provided with switching value output port 611 and the analog output port 612 be connected with control systems of nuclear power plant 8, by switching value output port 611, the switching value signal is transferred to the warning system 81 in control systems of nuclear power plant 8 and triggers and be distributed in nuclear power station electronic alarm devices at different levels everywhere, by described analog output port, analog signals is transferred to master-control room 82.If detector 3 detects air radioactive while exceeding standard, warning system 81 is sent instruction to the controller on containment valve 11, and self-closing safety shell valve 11 prevents that radiomaterial in containment 1 is to external diffusion.
Air radioactive monitoring device of the present utility model adopts ionization chamber continuous probe mode to be surveyed, and the coherent detection data are connected with the data network of nuclear power station, has realized the robotization of observation process and the networking of detection data.Warning system is connected with the containment valve, when in containment, the radioactivity of air exceeds standard, and warning system self-closing safety shell valve.On the spot the processes and displays unit on the spot processes and displays detect data, alleviated the burden of central control system, make the design of whole system more reasonable.
Claims (6)
1. an air radioactive monitoring device, for monitoring the radioactivity of air in nuclear power plant containment shell, it is characterized in that: described air radioactive monitoring device comprises for the containment as measurement target, be used to detector that the ionization chamber of optimum measurement environment is provided, aspiration pump for extracting air in containment, be used to the consumer unit of described aspiration pump power supply, filtrator for filtered air, radioactive indicator for air in the described containment of Real-Time Monitoring, and the signal of generation is passed to the detector of processes and displays unit on the spot, be used for real-time reception & disposal and transmit the signal that described detector produces, and the unit of processes and displays on the spot of demonstration radiological measuring result, for gathering the also nuclear power station central data acquisition system of each system service data of storage administration nuclear power station, control systems of nuclear power plant for each system operation of Comprehensive Control nuclear power station, for receiving data the long-range demonstration radiological measuring result of the transmission of described processes and displays on the spot unit, transfer data to the concentrated rack of described control systems of nuclear power plant and described nuclear power station central data acquisition system simultaneously, described aspiration pump, consumer unit, filtrator, detector, the processes and displays unit all is positioned at described ionization chamber on the spot, described consumer unit is connected with described aspiration pump, described aspiration pump communicates by pipeline with described detector, described detector communicates by pipeline with described filtrator, described filtrator communicates by pipeline with described containment, described detector is connected with described processes and displays on the spot unit, described processes and displays on the spot unit is connected with described terminal box, described terminal box is connected with described concentrated rack, described concentrated rack comprises remote display unit, described remote display unit is provided with switching value output port and the analog output port be connected with control systems of nuclear power plant, respectively switching value signal and analog signals are transferred to control systems of nuclear power plant by described switching value output port and described analog output port.
2. air radioactive monitoring device according to claim 1, it is characterized in that: described processes and displays on the spot unit is provided with electric source line interface and RS485 interface, and described processes and displays on the spot unit is connected with terminal box with the RS485 interface by described electric source line interface.
3. air radioactive monitoring device according to claim 1, it is characterized in that: described terminal box is provided with electric source line interface and RS485 interface, and described terminal box is connected with described concentrated rack with the RS485 interface by described electric source line interface.
4. air radioactive monitoring device according to claim 1, it is characterized in that: described control systems of nuclear power plant comprises warning system and master-control room.
5. air radioactive monitoring device according to claim 1, it is characterized in that: described containment comprises the containment valve, described warning system is connected with the containment valve, while exceeding standard at described detector, air radioactive being detected, automatically closes described containment valve.
6. air radioactive monitoring device according to claim 1, it is characterized in that: described concentrated rack be positioned at the discharging of waste liquid pipeline separate predetermined safe distance pulpit, described concentrated rack is provided with the RS485 interface, and described concentrated rack is transferred to central data acquisition system by described RS485 interface by signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204574241U CN203338771U (en) | 2013-07-30 | 2013-07-30 | Air radioactivity monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204574241U CN203338771U (en) | 2013-07-30 | 2013-07-30 | Air radioactivity monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN203338771U true CN203338771U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013204574241U Expired - Lifetime CN203338771U (en) | 2013-07-30 | 2013-07-30 | Air radioactivity monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240776A (en) * | 2014-09-12 | 2014-12-24 | 中广核工程有限公司 | Method and system for monitoring radioactive substances in nuclear power plant control room |
| CN105044761A (en) * | 2014-11-04 | 2015-11-11 | 长沙绿智电子科技有限公司 | Unattended radioactive contamination monitoring apparatus |
| CN109752751A (en) * | 2019-01-23 | 2019-05-14 | 成都理工大学 | In air131I dynamic equilibrium monitoring device and monitoring method |
-
2013
- 2013-07-30 CN CN2013204574241U patent/CN203338771U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240776A (en) * | 2014-09-12 | 2014-12-24 | 中广核工程有限公司 | Method and system for monitoring radioactive substances in nuclear power plant control room |
| CN105044761A (en) * | 2014-11-04 | 2015-11-11 | 长沙绿智电子科技有限公司 | Unattended radioactive contamination monitoring apparatus |
| CN105044761B (en) * | 2014-11-04 | 2018-01-05 | 湖南绿智传感技术有限公司 | A kind of unattended radioactive pollution monitoring equipment |
| CN109752751A (en) * | 2019-01-23 | 2019-05-14 | 成都理工大学 | In air131I dynamic equilibrium monitoring device and monitoring method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |