CN205540338U - Nuclear power station pipeline electrical heating redundant control system - Google Patents
Nuclear power station pipeline electrical heating redundant control system Download PDFInfo
- Publication number
- CN205540338U CN205540338U CN201620108960.4U CN201620108960U CN205540338U CN 205540338 U CN205540338 U CN 205540338U CN 201620108960 U CN201620108960 U CN 201620108960U CN 205540338 U CN205540338 U CN 205540338U
- Authority
- CN
- China
- Prior art keywords
- cpu
- relay
- heat tracing
- companion
- hot loop
- 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.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses a nuclear power station pipeline electrical heating redundant control system, it includes alarm device, connects alarm device's relay, accompanies hot loop, reserve companion's hot loop, and companion's hot loop includes CPU, interface module, relay, heating circuit dish, heating cable, thermocouple, the control program that the CPU receiving host machine of companion in the hot loop sent drives the dynamic relay break -make through interface module, and the relay passes through the heating circuit dish to be connected with the heating cable, and the thermocouple passes through interface module with temperature signal and inputs CPU, and CPU passes through interface module according to temperature signal and drives the relay of being connected with alarm device, the hot loop of reserve companion is the same with companion's hot loop, the redundant configuration of CPU of CPU and reserve companion's hot loop of companion's hot loop, and when one of them CPU broke down, reserve CPU automatic switch -over at once carried out the collection and the control of data. The utility model discloses heat the temperature -controlled precision height, respond in time, adjust the convenience, changeable extremely reserve companion hot loop when accompanying the hot loop trouble, the security is strong.
Description
Technical field
This utility model relates to nuclear power station pipeline electrical heating redundancy control system.
Background technology
Nuclear power station electric tracer heating system equipment is applicable to the heating of the special process pipeline such as nuclear power plant's boric acid solution pipeline and chilled water, gauge pipe, outdoor handpiece Water Chilling Units, with guarantee in pipeline boric acid solution be in all the time good in the environment of, maintain the circulation of fluid, prevent boric acid from crystallizing, prevent nuclear power station generation serious accident.The special process pipeline computer heating control mode such as boric acid solution pipeline and chilled water, gauge pipe, outdoor handpiece Water Chilling Units uses thermometer bulb switch directly to control mostly at present; owing to thermometer bulb switch is mechanical type; precision and adjustability are poor, and often cause the crystallization adding hot channel dangerous due to the response lag of temperature controller；Other control modes use single PLC and directly control, when being controlled due to single PLC, if the CPU of PLC goes wrong, can cause measuring the paralysis of whole control system all data, it is unable to reach the requirement of computer heating control, causes the crystallization adding hot channel dangerous.
Utility model content
Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art to provide a kind of nuclear power station pipeline electrical heating redundancy control system so that it is more stable reliably.
The technical scheme in the invention for solving the above technical problem is: nuclear power station pipeline electrical heating redundancy control system, including alarm device, connecting the relay of alarm device, heat tracing loop, standby heat tracing loop, heat tracing loop includes CPU, interface module, relay, heater circuit dish, heating cable, thermocouple；CPU in heat tracing loop receives the control program that host computer sends, relay on-off is driven by interface module, relay is connected with heating cable by heater circuit dish, temperature signal is driven, by interface module input CPU, CPU, the relay being connected with alarm device by thermocouple according to temperature signal by interface module；Standby heat tracing loop is identical with heat tracing loop, the CPU in heat tracing loop and the CPU redundant configuration in standby heat tracing loop, and when one of them CPU breaks down, standby CPU automatically switches at once and carries out collection and the control of data.
Also setting up host computer, temperature signal is shown on host computer by CPU by communication module.
Also set up handover operation interface on host computer, switched between heat tracing loop and standby heat tracing loop by the handover operation interface of host computer.
Compared with prior art, the utility model has the advantage of: realize heating, temperature control by CPU, relay, heating cable, thermocouple, setup control program can realize Based Intelligent Control, and response is in time, easy to adjust, and precision is high.Setting can be with the standby heat tracing loop of normal heat tracing loop switch, it is achieved redundant configuration, it is to avoid makes whole system lose efficacy because of a wherein heat tracing loop fault, enhances safety.
Accompanying drawing explanation
Fig. 1 is control system principle schematic in this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is further illustrated by embodiment.
Embodiment, control system as shown in Fig. 1, including host computer, communication module, alarm device, the relay of connection alarm device, heat tracing loop, heat tracing loop includes CPU, interface module, relay, heater circuit dish, heating cable, thermocouple, temperature etc. is set by host computer and controls parameter, operation signal, and after being processed, pass through interface module driving relay terminal contact by communication module input CPU, CPU, then control heating cable heating or stopping heating by heater circuit dish.Thermocouple is monitored temperature in real time and according to temperature signal, temperature signal can be run the control program preset by interface module transmission to CPU, CPU, and is transferred to host computer display monitoring result by CPU.
CPU also can drive, according to temperature signal, the relay being connected with alarm device by interface module, and the adhesive of the electronic contact of relay or disconnection are to start or to close and alarm device.
Control system also includes standby heat tracing loop, standby heat tracing loop includes spare CPU, spare interface module, duplicate relay, standby heater circuit dish, standby heating cable, Backup thermocouples, standby heat tracing loop is redundant configuration, and the function of each device in standby heat tracing loop, annexation are identical with the device in former heat tracing loop.Spare interface module in standby heat tracing loop also connects with the relay connecting alarm device.
The CPU in heat tracing loop and the CPU redundant configuration in standby heat tracing loop, when one of them CPU breaks down, standby CPU automatically switches at once and carries out collection and the control of data.
Handover operation interface also can be set on host computer, by handover operation interface by heat tracing loop switch to standby heat tracing loop, or by standby heat tracing loop switch to heat tracing loop.
Claims (3)
1. nuclear power station pipeline electrical heating redundancy control system, it is characterized in that: it includes alarm device, connects the relay of alarm device, heat tracing loop, standby heat tracing loop, heat tracing loop includes CPU, interface module, relay, heater circuit dish, heating cable, thermocouple；CPU in heat tracing loop receives the control program that host computer sends, relay on-off is driven by interface module, relay is connected with heating cable by heater circuit dish, temperature signal is driven, by interface module input CPU, CPU, the relay being connected with alarm device by thermocouple according to temperature signal by interface module；Standby heat tracing loop is identical with heat tracing loop, the CPU in heat tracing loop and the CPU redundant configuration in standby heat tracing loop, and when one of them CPU breaks down, standby CPU automatically switches at once and carries out collection and the control of data.
2. nuclear power station pipeline electrical heating redundancy control system as claimed in claim 1, it is characterised in that: also setting up host computer, temperature signal is shown on host computer by CPU by communication module.
3. nuclear power station pipeline electrical heating redundancy control system as claimed in claim 2, it is characterised in that: also set up handover operation interface on host computer, switched between heat tracing loop and standby heat tracing loop by the handover operation interface of host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108960.4U CN205540338U (en) | 2016-02-03 | 2016-02-03 | Nuclear power station pipeline electrical heating redundant control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108960.4U CN205540338U (en) | 2016-02-03 | 2016-02-03 | Nuclear power station pipeline electrical heating redundant control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205540338U true CN205540338U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620108960.4U Expired - Fee Related CN205540338U (en) | 2016-02-03 | 2016-02-03 | Nuclear power station pipeline electrical heating redundant control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205540338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065973A (en) * | 2017-04-24 | 2017-08-18 | 江苏密斯欧智能科技有限公司 | A kind of boric acid pipeline electric heating control cabinet redundancy intelligent control method |
| CN108037716A (en) * | 2017-11-30 | 2018-05-15 | 南京力通达电气技术有限公司 | The redundancy design method of intelligent primary equipment IED devices |
-
2016
- 2016-02-03 CN CN201620108960.4U patent/CN205540338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065973A (en) * | 2017-04-24 | 2017-08-18 | 江苏密斯欧智能科技有限公司 | A kind of boric acid pipeline electric heating control cabinet redundancy intelligent control method |
| CN108037716A (en) * | 2017-11-30 | 2018-05-15 | 南京力通达电气技术有限公司 | The redundancy design method of intelligent primary equipment IED devices |
| CN108037716B (en) * | 2017-11-30 | 2020-04-07 | 南京力通达电气技术有限公司 | Redundancy design method of intelligent primary equipment IED device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |