CN201804287U - Boron heating temperature control system in nuclear power plant - Google Patents
Boron heating temperature control system in nuclear power plant Download PDFInfo
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- CN201804287U CN201804287U CN201020556830XU CN201020556830U CN201804287U CN 201804287 U CN201804287 U CN 201804287U CN 201020556830X U CN201020556830X U CN 201020556830XU CN 201020556830 U CN201020556830 U CN 201020556830U CN 201804287 U CN201804287 U CN 201804287U
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Abstract
The utility model discloses a boron heating temperature control system in a nuclear power plant. The system consists of two sets of electric circuits with same equipment, wherein the two sets of electric circuits are independently arranged; the electric circuit adopts PLC (programmable logic controller) equipment for heat-tracing control and temperature display; the PLC equipment adopts a distributed configuration method; a PLC central processing unit and a PLC input/output module have a principal and subordinate structure and are arranged in different cases; the PLC central processing unit adopts redundancy configuration so as to ensure the reliability of the PLC central processing unit, and one set of PLC central processing unit can control a plurality of sets of PLC input/output modules for realizing heat-tracing control. The system adopts the distributed configuration method to reduce the size of the case and enable the boron heating temperature control system to be easier to install in the nuclear power plant.
Description
Technical field
The utility model belongs to a kind of temperature control system, specifically is that nuclear power plant's boron is accompanied hot temperature control system.
Background technology
Nuclear power plant's boron tracing system is used for companion's heat of nuclear power plant's BAS pipeline, to guarantee that BAS is under the good operating condition all the time in the pipeline, prevents that the boric acid crystallization from stopping up loop and instrument piping, thereby guarantees the normal safe operation of nuclear power plant.
At present, the boron tracing system of active service nuclear power plant, generally adopt the mechanical temperature controller temperature control, mechanical temperature controller has good radiation-resistant property and non-advantage such as active, but mechanical temperature controller also has some shortcomings: it is more serious that temperature is floated phenomenon, long-term working stability is poor, and owing to mechanical temperature controller temperature-control structure reason, interchangeability is poor between the different model temperature controller.
Adopt programmable logic controller (PLC) (PLC) to carry out temperature and be controlled at industrial a lot of successful application that had, in the boron tracing system of nuclear power plant, application was arranged also, the nuclear power station boron tracing system of employing PLC described in " nuclear power station boron tracing system design proposal relatively " literary composition of delivering as " nuclear engineering research with design " the 61st phase in 2006, this system adopts centralized design, the temperature-controlled precision height, the construction debug process is simple, can change parameter easily according to practical operation situation in later maintenance.But owing to adopt centralized design, system changes bigger, warning function and companion's heat control function are concentrated in together, normally accompany the PLC rack of hot loop and the PLC rack of standby companion's hot loop to link active station simultaneously, do not meet fully independently principle of two circuit; At a control rack PLC CPU (central processing unit) and PLC input/output module have been installed, the control cabinet dimensions is bigger, is difficult for installing in the narrow and small environment of nuclear power plant; Adopt two thermopairs, installation dimension is bigger, and reliability reduces; Compensating cable quantity has bigger increase, has increased the cable laying difficulty, and cable run changes greatly, has increased system's installation difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of system maintenance easy, can satisfy the special operation of nuclear power plant, realizes companion's heat of nuclear power plant's BAS pipeline, guarantees that nuclear power plant's boron of the normal safe operation of nuclear power plant is accompanied hot temperature control system.
The utility model is achieved in that
A kind of nuclear power plant boron is accompanied hot temperature control system, form by the electric loop that two complete equipments are identical, every cover electric loop comprises PLC opertaing device, switchboard, heating plate, companion's thermal element and thermopair, it is characterized in that: adopt between the described temperature control system circuit and isolate separate configurations, every cover electric loop comprises companion hot equipment, opertaing device and surveillance equipment three major parts, specifically describes as follows:
Accompany hot equipment: comprise switchboard and emergency panel, heater circuit dish and standby heater circuit dish, warning circuit dish and standby warning circuit dish and companion's thermal element and stand-by circuit companion thermal element; Be furnished with multichannel respectively in each heater circuit dish and the standby heater circuit dish and accompany hot electric controller; The hot electric controller of companion of heater circuit dish (2) is controlled by the contact signal that PLC measures the PLC output module output of control box (6), and the hot electric controller of companion of standby heater circuit dish (12) is measured the contact signal control of the PLC output module output of control box (16) by standby PLC; The warning circuit dish adopts signal to be connected with standby warning circuit dish with heater circuit dish and standby heater circuit dish; Companion's thermal element and companion's thermal element are installed in by on the trace pipe road.
Opertaing device: comprise that PLC central authorities' treatment box and standby PLC central authorities treatment box, PLC measure control box and standby PLC measurement control box, thermopair transfer box and standby thermopair transfer box, thermopair and standby thermopair; Be furnished with PLC control module and PLC operation screen in PLC central authorities treatment box and the standby PLC central authorities treatment box respectively, be connected by communication cable between PLC operation screen and the PLC control module; PLC measures in control box and the standby PLC measurement control box and is furnished with the PLC input-output unit respectively; Thermopair and standby thermopair are installed in by on the trace pipe road; Thermopair links to each other with standby thermopair transfer box with the thermopair transfer box respectively with standby thermopair, and thermopair transfer box and standby thermopair transfer box (18) are measured between control box and the standby PLC measurement control box with PLC respectively and be connected by compensating cable;
Surveillance equipment: comprise active station and standby operation station, link to each other with the central treatment box of standby PLC with the central treatment box of PLC respectively by Industrial Ethernet.
Its supplementary features are:
PLC control module, PLC in PLC central authorities' treatment box in the described temperature control system opertaing device and the standby PLC central authorities treatment box measures in the control box and the PLC input-output unit of standby PLC measurement control box is principal and subordinate's configuration structure: promptly the PLC control module is a main website, the PLC input-output unit is the substation, both connect by communication cable, and a main website controls several substations.
Described temperature control system accompanies heater circuit dish and the standby heater circuit dish in the hot equipment that several can be arranged, and is furnished with 12 the tunnel respectively in each heater circuit dish and the standby heater circuit dish and accompanies hot electric controller.
Advantage of the present utility model is: adopt the control of distributed PLC temperature 1., signal I/O PLC and central authorities are handled PLC to be arranged in the different cabinets, the decentralized configuration mode has reduced PLC equipment cabinets size, makes the PLC cabinet be more prone in the installation of nuclear power plant.Temperature shows and companion's heat control function 2.PLC finish simultaneously, only needs to gather the temperature signal of a thermopair, has cancelled the thermopair and the corresponding compensating cable that are used for temperature display function, and is reliable more economically; 3. two redundant cover electric loops are independent fully, and system's companion's hot merit can be finished by separate regulator cubicle with warning function, more meets nuclear power plant's electrical equipment designing requirement.
Description of drawings
Fig. 1 is the structural representation that nuclear power plant of the present utility model boron is accompanied hot temperature control system.
Fig. 2 is that nuclear power plant's boron is accompanied hot temperature control system and the synoptic diagram that is linked to each other by the trace pipe road.
Among the figure: 1. switchboard; 2 heater circuit dishes; 3. warning circuit dish; 4.PLC central treatment box; 5. active station; 6.PLC measurement control box; 7. thermopair; 8. thermopair transfer box; 9 companion's thermal elements; 10. by the trace pipe road; 11. emergency panel; 12. standby heater circuit dish; 13. standby warning circuit dish; 14. the central treatment box of standby PLC; 15. standby operation station; 16. standby PLC measures control box; 17. standby thermopair; 18. standby thermopair transfer box; 19. standby companion's thermal element
Embodiment
As shown in Figure 1, the utility model is made up of the identical electric loop of two complete equipments, is respectively normal electrical air circuit (Fig. 1 left side) and standby electric loop (Fig. 1 right side).Adopt between the circuit and isolate separate configurations, independently finish distributing function, companion's hot merit energy, warning function and temperature display function.The redundant hot temperature control system of companion of two covers can be standby each other.Every cover electric loop comprises companion hot equipment, opertaing device and surveillance equipment three major parts, and each partial structure and function specifically describe as follows:
Accompany hot equipment: comprise switchboard 1 and emergency panel 11, heater circuit dish 2 and standby heater circuit dish 12, warning circuit dish 3 and standby warning circuit dish 13 and companion's thermal element 9 and standby companion's thermal element 19.Switchboard 1 and emergency panel 11 be input as the 380VAC of nuclear power plant power supply and 48VDC power supply, switchboard 1 and emergency panel 11 distribute power plant's power supply, for heater circuit dish 2 and standby heater circuit dish 12 provide 380VAC power supply, for warning circuit dish 3 and standby warning circuit dish 13 provide 48VDC power supply.PLC measures control box 6 and standby PLC measurement control box 16 is measured by the temperature in trace pipe road by thermopair 7 and standby thermopair 17, and the break-make of thermal element 9 and standby companion's thermal element 19 power switches is accompanied in the control of output control signal.Companion's thermoelectric generator of each root companion's thermal element 9 and standby companion's thermal element 19 all has a control loop, is used to accompany the break-make control of thermoelectric generator.Heater circuit dish 2 and standby heater circuit dish 12 change into multiple voltage for accompanying the thermal element power supply according to companion's thermal element 9 and standby companion's thermal element 19 specifications with power plant's 380VAC power supply; Heater circuit dish 2 and standby heater circuit dish 12 can have several, are furnished with 12 the tunnel respectively in each heater circuit dish 2 and the standby heater circuit dish 12 and accompany hot electric controller, accompany the contact signal control of hot electric controller by the output of PLC output module.Warning circuit dish 3 adopts signal to be connected with heater circuit dish 2 with standby heater circuit dish 12 with standby warning circuit dish 13, monitor in switchboard 1 and the emergency panel 11 and the duty of several heater circuit dishes 2 and standby heater circuit dish 12, combination is from the alerting signal of switchboard 1 and emergency panel 11, heater circuit dish 2 and standby heater circuit dish 12, carries out alarm processing system and integrated data processing system that photon board on the spot shows and be delivered to nuclear power plant.
Opertaing device: comprise that PLC central authorities' treatment box 4 and standby PLC central authorities treatment box 14, PLC measure control box 6 and standby PLC measurement control box 16, thermopair transfer box 8 and standby thermopair transfer box 18, thermopair 7 and standby thermopair 17.Be furnished with PLC control module and PLC operation screen in PLC central authorities treatment box 4 and the standby PLC central authorities treatment box 14 respectively, be connected by communication cable between PLC operation screen and the PLC control module, show the temperature of each trace pipe section and accompany heat control information.PLC measures in control box 6 and the standby PLC measurement control box 16 and is furnished with the PLC input-output unit respectively, PLC control module in PLC central authorities treatment box 4 and the standby PLC central authorities treatment box 14 and PLC measure in the control box 6 and the standby PLC PLC input-output unit of measuring control box 16 be principal and subordinate's configuration structure: the PLC control module is a main website, the PLC input-output unit is the substation, both connect by communication cable, and a main website controls several substations.Under the control of PLC control module, the load module of PLC input-output unit is measured the temperature signal of thermopair 7 and standby thermopair 17 respectively, and output module output companion heat control contact signal is accompanied heat control to companion's thermoelectric generator.Thermopair 7 and standby thermopair 17 are installed in by on the trace pipe road, measure by the temperature in trace pipe road, are used for pipe temperature demonstration and temperature control.Companion's thermal element 9 is installed in by on the trace pipe road, is pipeline tracing.By the trace pipe road is nuclear power plant's BAS pipeline.Thermopair 7 links to each other with standby thermopair transfer box 18 with difference thermopair transfer box 8 with standby thermopair 17, thermopair transfer box 8 and standby thermopair transfer box 18 are measured between control box 6 and the standby PLC measurement control box 16 with PLC respectively and are connected by compensating cable, realize the selection of temperature signal of PLC temperature measurement module to hot thermocouple galvanic couple 7 and standby thermopair 17.
Surveillance equipment: comprise active station 5 and standby operation station 15, operator station 5 and the standby operation person 15 "dead" zones that are arranged in power plant of standing, link to each other with the central treatment box 14 of standby PLC with the central treatment box 4 of PLC respectively by Industrial Ethernet, accept the process signal of normally electric and standby electric loop, realize supervision whole companion's heater circuit state.The system maintenance personnel also can make amendment to the controlled variable of each branch road in companion's heater circuit by active station.
Claims (3)
1. nuclear power plant's boron is accompanied hot temperature control system, form by the electric loop that two complete equipments are identical, every cover electric loop comprises PLC opertaing device, switchboard, heating plate, companion's thermal element and thermopair, it is characterized in that: adopt between the described temperature control system circuit and isolate separate configurations, every cover electric loop comprises companion hot equipment, opertaing device and surveillance equipment three major parts, specifically describes as follows:
Accompany hot equipment: comprise switchboard (1) and emergency panel (11), heater circuit dish (2) and standby heater circuit dish (12), warning circuit dish (3) and standby warning circuit dish (13) and companion's thermal element (9) and stand-by circuit companion thermal element (19); Be furnished with multichannel respectively in each heater circuit dish (2) and the standby heater circuit dish (12) and accompany hot electric controller; The hot electric controller of companion of heater circuit dish (2) is controlled by the contact signal that PLC measures the PLC output module output of control box (6), and the hot electric controller of companion of standby heater circuit dish (12) is measured the contact signal control of the PLC output module output of control box (16) by standby PLC; Warning circuit dish (3) adopts signal to be connected with standby warning circuit dish (13) with heater circuit dish (2) and standby heater circuit dish (12); Companion's thermal element (9) and companion's thermal element (19) are installed in by on trace pipe road (10),
Opertaing device: comprise that PLC central authorities' treatment box (4) and standby PLC central authorities treatment box (14), PLC measure control box (6) and standby PLC measurement control box (16), thermopair transfer box (8) and standby thermopair transfer box (18), thermopair (7) and standby thermopair (17); Be furnished with PLC control module and PLC operation screen in PLC central authorities treatment box (4) and the standby PLC central authorities' treatment boxes (14) respectively, the PLC operation shield with the PLC control module between be connected by communication cable; PLC measures in control box (6) and the standby PLC measurement control box (16) and is furnished with the PLC input-output unit respectively; Thermopair (7) links to each other with standby thermopair transfer box (18) with thermopair transfer box (8) respectively with standby thermopair (17), and thermopair transfer box (8) and standby thermopair transfer box (18) are measured between control box (6) and the standby PLC measurement control box (16) with PLC respectively and be connected by compensating cable;
Surveillance equipment: comprise active station (5) and standby operation station (15), link to each other with standby PLC central authorities' treatment boxes (14) with PLC central authorities' treatment boxes (4) respectively by Industrial Ethernet.
2. accompany hot temperature control system according to the described nuclear power plant of claim 1 boron, it is characterized in that: the PLC input-output unit of (6) and standby PLC measurement control box (16) is principal and subordinate's configuration structure in PLC central authorities' treatment box (4) in the described temperature control system opertaing device and the PLC control module in standby PLC central authorities' treatment boxes (14), the PLC measurement control box: promptly the PLC control module is a main website, the PLC input-output unit is the substation, both connect by communication cable, and a main website controls several substations.
3. accompany hot temperature control system according to claim 1 or 2 described nuclear power plant boron, it is characterized in that: described temperature control system accompanies heater circuit dish (2) and the standby heater circuit dish (12) in the hot equipment that several can be arranged, and is furnished with 12 the tunnel respectively in each heater circuit dish (2) and the standby heater circuit dish (12) and accompanies hot electric controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020556830XU CN201804287U (en) | 2010-10-11 | 2010-10-11 | Boron heating temperature control system in nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020556830XU CN201804287U (en) | 2010-10-11 | 2010-10-11 | Boron heating temperature control system in nuclear power plant |
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| CN201804287U true CN201804287U (en) | 2011-04-20 |
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| CN201020556830XU Expired - Lifetime CN201804287U (en) | 2010-10-11 | 2010-10-11 | Boron heating temperature control system in nuclear power plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838271A (en) * | 2014-03-20 | 2014-06-04 | 冶金自动化研究设计院 | Redundancy temperature measuring type full-automatic heat processing power source control system |
| CN103854538A (en) * | 2012-12-03 | 2014-06-11 | 中核核电运行管理有限公司 | Instrument control human-factor-preventing training device of nuclear power station |
| CN106448759A (en) * | 2016-10-19 | 2017-02-22 | 中国核电工程有限公司 | Nuclear power station heater automatic control system effectiveness detecting method |
| CN112233828A (en) * | 2020-10-15 | 2021-01-15 | 福建福清核电有限公司 | Laying structure of heat tracing element of boron heat tracing system of nuclear power plant |
| CN117492492A (en) * | 2023-11-02 | 2024-02-02 | 华能山东石岛湾核电有限公司 | Optimizing method for equipment surface temperature distribution |
-
2010
- 2010-10-11 CN CN201020556830XU patent/CN201804287U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854538A (en) * | 2012-12-03 | 2014-06-11 | 中核核电运行管理有限公司 | Instrument control human-factor-preventing training device of nuclear power station |
| CN103854538B (en) * | 2012-12-03 | 2015-09-30 | 中核核电运行管理有限公司 | The anti-people of nuclear power plant instrument control is because of training set |
| CN103838271A (en) * | 2014-03-20 | 2014-06-04 | 冶金自动化研究设计院 | Redundancy temperature measuring type full-automatic heat processing power source control system |
| CN103838271B (en) * | 2014-03-20 | 2015-10-28 | 冶金自动化研究设计院 | A kind of redundancy temp.-measuring type full-automatic heat process power control system |
| CN106448759A (en) * | 2016-10-19 | 2017-02-22 | 中国核电工程有限公司 | Nuclear power station heater automatic control system effectiveness detecting method |
| CN106448759B (en) * | 2016-10-19 | 2021-09-17 | 中国核电工程有限公司 | Effectiveness detection method for automatic control system of nuclear power station heater |
| CN112233828A (en) * | 2020-10-15 | 2021-01-15 | 福建福清核电有限公司 | Laying structure of heat tracing element of boron heat tracing system of nuclear power plant |
| CN117492492A (en) * | 2023-11-02 | 2024-02-02 | 华能山东石岛湾核电有限公司 | Optimizing method for equipment surface temperature distribution |
| CN117492492B (en) * | 2023-11-02 | 2024-05-31 | 华能山东石岛湾核电有限公司 | Optimizing method for equipment surface temperature distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Dahua Technology Development Co., Ltd.Of Nuclear Power Institute of China Assignor: Nuclear Power Institute of China Contract record no.: 2013510000071 Denomination of utility model: Boron heating temperature control system in nuclear power plant Granted publication date: 20110420 License type: Exclusive License Record date: 20130820 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20140523 Contract record no.: 2013510000071 Assignee after: CHENGDU HAIGUANG NUCLEAR TECHNOLOGY SERVICES CO., LTD. Assignee before: Chengdu Dahua Technology Development Co., Ltd.Of Nuclear Power Institute of China |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20140523 Contract record no.: 2013510000071 Assignee after: CHENGDU HAIGUANG NUCLEAR TECHNOLOGY SERVICES CO., LTD. Assignee before: Chengdu Dahua Technology Development Co., Ltd.Of Nuclear Power Institute of China |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
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| CX01 | Expiry of patent term |