CN208806073U - A kind of coolant Residual heat removal automatic monitored control system for sea based reactor - Google Patents
A kind of coolant Residual heat removal automatic monitored control system for sea based reactor Download PDFInfo
- Publication number
- CN208806073U CN208806073U CN201821438555.4U CN201821438555U CN208806073U CN 208806073 U CN208806073 U CN 208806073U CN 201821438555 U CN201821438555 U CN 201821438555U CN 208806073 U CN208806073 U CN 208806073U
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- China
- Prior art keywords
- residual heat
- heat removal
- coolant
- controller
- control system
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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 discloses a kind of coolant Residual heat removal automatic monitored control systems for sea based reactor, it is related to the safety devices field of reactor, the device includes an at least Residual heat removal cooler, monitoring device and controller, each Residual heat removal cooler includes coolant entrance, coolant outlet, seawater inlet and seawer outlet, coolant entrance connects an at least residual heat removal pump, monitoring device includes the pressure sensor set on coolant entrance, set on the flow sensor of coolant outlet, set on the first temperature sensor of coolant outlet and set on the second temperature sensor of seawer outlet, controller is connect with monitoring device signal, and controller is connect by a frequency converter with residual heat removal pump, controller is used to receive the signal of monitoring device and preset value corresponding with its signal compares, Residual heat removal is adjusted to control frequency converter Pump power output, the utility model can make the rate of temperature fall of coolant keep in a certain range, improving the safety of reactor.
Description
Technical field
The utility model relates to the safety devices fields of reactor, and in particular to a kind of coolant for sea based reactor
Residual heat removal automatic monitored control system.
Background technique
Active residual heat removal system is an important system during reactor shutdown, general active Residual heat removal system
System includes residual heat removal pump, Residual heat removal cooler, several electrically operated valves and sensor, more than coolant is pumped by residual heat removal pump
Heat-extraction system pipeline is cooled down by seawater in Residual heat removal cooler, is ultimately discharged into major loop, played and persistently take away heap
The effect of core heat.
For active residual heat removal system, the rate of temperature fall of coolant is mainly by the aperture of valve and remaining in nuclear power station
Remaining row's motor speed in hot discharge pump determines, but since the revolving speed of valve opening and remaining row's motor is substantially stationary, causes active
The degree of automation of residual heat removal system is not high.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of for sea based reactor
Coolant Residual heat removal automatic monitored control system can make the rate of temperature fall of coolant keep in a certain range, improving reactor
Safety.
To achieve the above objectives, the technical scheme adopted by the utility model is that: a kind of coolant for sea based reactor
Residual heat removal automatic monitored control system, comprising:
An at least Residual heat removal cooler, each Residual heat removal cooler include coolant entrance, coolant outlet,
Seawater inlet and seawer outlet, the coolant entrance connect an at least residual heat removal pump；
Monitoring device, the monitoring device include going out set on the pressure sensor of coolant entrance, set on the coolant
Flow sensor, the first temperature sensor set on the coolant outlet and the second temperature set on the seawer outlet of mouth
Sensor；
Controller, the controller are connect with the monitoring device signal, and the controller passes through a frequency converter and institute
Residual heat removal pump connection is stated, the controller is used to receive the signal of the monitoring device and preset value pair corresponding with its signal
Than adjusting the Residual heat removal pump power output to control the frequency converter.
Based on the above technical solution, the controller includes power module, CPU, digital output module and mould
Analog quantity input module, the CPU are connect with the power module, digital output module and Analog input mModule, the number
Word amount output module is connect with the frequency converter signal, the Analog input mModule respectively with the encoder, the first temperature
Sensor, second temperature sensor, flow sensor are connected with pressure sensor signal.
Based on the above technical solution, the monitoring system include one be connected with the controller in a signal way. it is upper
Machine.
Based on the above technical solution, there are two the Residual heat removal cooler is set, and two Residual heat removals are cold
But the corresponding coolant entrance of device, coolant outlet, seawater inlet and seawer outlet each communicate with.
Based on the above technical solution, the coolant entrance of each Residual heat removal cooler connects
Connect a valve.
Based on the above technical solution, the valve is motor-driven valve, and the valve and the controller signals connect
It connects.
Based on the above technical solution, there are two the residual heat removal pump is set, two residual heat removal pumps are in parallel, and
The controller is connect with two residual heat removal pumps respectively by two frequency converters.
Based on the above technical solution, the residual heat removal pump connects a check-valves.
Based on the above technical solution, first temperature sensor and second temperature sensor are platinum resistance temperature
Degree meter.
Based on the above technical solution, the controller is PLC controller.
Compared with the prior art, the advantages of the utility model are:
(1) one of the utility model is used for the coolant Residual heat removal automatic monitored control system of sea based reactor, can
The coolant flow and coolant entrance for passing through Residual heat removal cooler coolant entrance in reactor are monitored by monitoring device
Pressure value, and the corresponding flow preset value of the coolant flow measured and pressure value and pressure preset are compared, and
Frequency converter is controlled by controller and adjusts the output power of residual heat removal pump in real time, so that the rate of temperature fall of coolant be made to be maintained at
In a certain range, the safety of reactor is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automatic monitored control system in the utility model embodiment；
Fig. 2 is the connection schematic diagram of controller in the utility model embodiment；
Fig. 3 is the connection schematic diagram of each module in controller in the utility model embodiment.
In figure: 1- Residual heat removal cooler, 11- coolant entrance, 12- coolant outlet, 13- seawater inlet, 14- seawater
Outlet, 15- valve, 2- residual heat removal pump, 21- check-valves, 3- monitoring device, 31- pressure sensor, 32- flow sensor,
The first temperature sensor of 33-, 34- second temperature sensor, 35- encoder, 4- controller, 41- frequency converter, 401- power supply mould
Block, 402-CPU, 403- digital output module, 404- Analog input mModule, 5- host computer.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Referring to figure 1 and figure 2, the utility model embodiment provides a kind of coolant waste heat row for sea based reactor
Automatic monitored control system out, including an at least Residual heat removal cooler 1, monitoring device 3 and controller 4, it is preferred that controller 4 is
PLC controller, each Residual heat removal cooler 1 include that coolant entrance 11, coolant outlet 12, seawater inlet 13 and seawater go out
Mouth 14, coolant entrance 11 connect an at least residual heat removal pump 2, and each residual heat removal pump 2 arranges motor, monitoring device including more than one
3 include the pressure sensor 31 set on coolant entrance 11, the flow sensor 32 set on coolant outlet 12, set on coolant
First temperature sensor 33 of outlet 12 is connect set on the second temperature sensor 34 of seawer outlet 14 and with residual heat removal pump 2
Encoder 35, it is preferred that the first temperature sensor 33 and second temperature sensor 34 are platinum resistance thermometer, controller 4
It is connect with 3 signal of monitoring device, and controller 4 is connect by a frequency converter 41 with residual heat removal pump 2, controller 4 is for receiving
The signal of monitoring device 3 and preset value corresponding with its signal comparison adjust 2 output work of residual heat removal pump to control frequency converter 41
Rate can monitor the coolant flow and coolant entrance 11 for passing through coolant entrance 11 in reactor by monitoring device 3
Pressure value, and the corresponding flow preset value of the coolant flow measured and pressure value and pressure preset are compared, and leads to
It crosses controller 4 and controls the real-time revolving speed for adjusting remaining row's motor in residual heat removal pump 2 of frequency converter 41, to make the cooling speed of coolant
Rate keeps in a certain range, improving the safety of reactor.
It is shown in Figure 3, wherein controller 4 includes power module 401, CPU402, digital output module 403 and mould
Analog quantity input module 404, CPU402 are connect with power module 401, digital output module 403 and Analog input mModule 404,
Digital output module 403 is connect with 41 signal of frequency converter, Analog input mModule 404 respectively with encoder 35, the first temperature
Sensor 33, second temperature sensor 34, flow sensor 32 are connected with 31 signal of pressure sensor, the 35, first temperature of encoder
Degree sensor 33, second temperature sensor 34, flow sensor 32 and pressure sensor 31 are monitored that signal passes to mould
Analog quantity input module 404, and CPU402 is passed to by Analog input mModule 404 and is handled, mainly by the prison of receiving
The signal measured is compared with the preset value to induction signal, and controls frequency conversion by digital output module 403 by CPU402
Device 41 makes the rate of temperature fall of coolant keep in a certain range, improving reactor to adjust the output power of residual heat removal pump 2
Safety.
Referring to shown in Fig. 1 to Fig. 3, monitoring system includes a host computer 5 connecting with 4 signal of controller, is set on host computer 5
There is operation panel, operation panel is equipped with starting, stop button and speed selection knob, for completing in residual heat removal pump 2
Starting, stopping and the adjusting of the speed operation of remaining row's motor, wherein monitoring device 3 further includes the volume connecting with residual heat removal pump 2
Code device 35, encoder 35 are used to monitor the output power of residual heat removal pump 2, the output power of the residual heat removal pump 2 are enable to exist
It is shown on host computer 5, operator is facilitated to judge；There are two Residual heat removal cooler 1 is set, and two Residual heat removals are cold
But the corresponding coolant entrance 11 of device 1, coolant outlet 12, seawater inlet 13 and seawer outlet 14 each communicate with, by setting
Two Residual heat removal coolers 1 are set, one of Residual heat removal cooler 1 can be made to play spare effect, when wherein working
A Residual heat removal cooler 1 when being damaged, can be worked by another Residual heat removal cooler 1, to avoid remaining
Heat discharge cooler 1 influences the Residual heat removal operation of coolant when breaking down；The coolant of each Residual heat removal cooler 1 enters
Mouth 11 is all connected with a valve 15, and a valve 15 is arranged by the coolant entrance 11 in each Residual heat removal cooler 1, can be complete
Spare Residual heat removal cooler 1 is served as in pairs and carries out management in idle time, when needing to enable spare Residual heat removal cooler 1, only
The valve 15 on the Residual heat removal cooler 1 of failure need to be closed, and opens the valve on spare Residual heat removal cooler 1
15, the switching to different Residual heat removal coolers 1 can be completed；Multiple 11 meets of coolant entrance are equipped with valve 15, and more
A 12 meet of coolant outlet is equipped with valve 15, is respectively set by the meet of coolant entrance 11 and coolant outlet 12
Valve 15 is able to carry out the operation of emergency cut-off Residual heat removal cooler 1, improves the safety of the Residual heat removal cooler 1.
Wherein, valve 15 is motor-driven valve or manually-operated gate, when valve 15 is motor-driven valve, valve 15 and 4 signal of controller
Connection, when carrying out the switching of Residual heat removal cooler 1, by 4 control valve 15 of controller, avoiding artificially switching causes
The unnecessary wasting of resources, meanwhile, avoid staff close to Residual heat removal cooler 1, to improve the people of staff
Body safety；There are two residual heat removal pump 2 is set, and two residual heat removal pump 2 is in parallel, can by the way that residual heat removal pump 2 is set as two
Significantly improve single residual heat removal pump 2 effect when efficiency, so as to more efficiently adjust coolant entrance 11 flow and
Pressure change；Residual heat removal pump 2 connects a check-valves 21, can prevent from flowing back by the coolant of residual heat removal pump 2
Phenomenon, and residual heat removal pump 2 is caused to damage, to improve the service life of the residual heat removal pump 2.
The utility model is not only limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products out, however, make any variation in its shape or structure, it is all to have and the utility model phase
Same or similar technical solution, within its protection scope.
Claims (10)
1. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor characterized by comprising
An at least Residual heat removal cooler (1), each Residual heat removal cooler (1) include coolant entrance (11), cooling
Agent exports (12), seawater inlet (13) and seawer outlet (14), and the coolant entrance (11) connects an at least residual heat removal pump
(2)；
Monitoring device (3), the monitoring device (3) include set on the pressure sensor (31) of coolant entrance (11), set on institute
State coolant outlet (12) flow sensor (32), be set to the coolant outlet (12) the first temperature sensor (33) and
Second temperature sensor (34) set on the seawer outlet (14)；
Controller (4), the controller (4) connect with the monitoring device (3) signal, and the controller (4) becomes by one
Frequency device (41) is connect with the residual heat removal pump (2), and the controller (4) is used to receive the signal of the monitoring device (3) simultaneously
Preset value comparison corresponding with its signal adjusts residual heat removal pump (2) output power to control the frequency converter (41).
2. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: the controller (4) includes power module (401), CPU (402), digital output module (403) and analog input
Module (404), the CPU (402) and the power module (401), digital output module (403) and Analog input mModule
(404) it connects, the digital output module (403) connect with the frequency converter (41) signal, the Analog input mModule
(404) respectively with encoder (35), the first temperature sensor (33), second temperature sensor (34), flow sensor (32) and
The connection of pressure sensor (31) signal.
3. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as claimed in claim 2, feature
Be: the monitoring system includes a host computer (5) connecting with the controller (4) signal.
4. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
It is: there are two the Residual heat removal cooler (1) sets, and the corresponding coolant of the two Residual heat removal coolers (1)
Entrance (11), coolant outlet (12), seawater inlet (13) and seawer outlet (14) each communicate with.
5. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: the coolant entrance (11) of each Residual heat removal cooler (1) is all connected with a valve (15).
6. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as claimed in claim 5, feature
Be: the valve (15) is motor-driven valve, and the valve (15) is connect with the controller (4) signal.
7. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: there are two the residual heat removal pump (2) sets, two residual heat removal pumps (2) are in parallel, and the controller (4) passes through two
The frequency converter (41) connect with two residual heat removal pumps (2) respectively.
8. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: the residual heat removal pump (2) connects a check-valves (21).
9. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: first temperature sensor (33) and second temperature sensor (34) are platinum resistance thermometer.
10. a kind of coolant Residual heat removal automatic monitored control system for sea based reactor as described in claim 1, feature
Be: the controller (4) is PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821438555.4U CN208806073U (en) | 2018-08-31 | 2018-08-31 | A kind of coolant Residual heat removal automatic monitored control system for sea based reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821438555.4U CN208806073U (en) | 2018-08-31 | 2018-08-31 | A kind of coolant Residual heat removal automatic monitored control system for sea based reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806073U true CN208806073U (en) | 2019-04-30 |
Family
ID=66236996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821438555.4U Expired - Fee Related CN208806073U (en) | 2018-08-31 | 2018-08-31 | A kind of coolant Residual heat removal automatic monitored control system for sea based reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN208806073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786223A (en) * | 2021-01-14 | 2021-05-11 | 中广核研究院有限公司 | Flow stabilizing device, waste heat discharge system and flow stabilizing method |
-
2018
- 2018-08-31 CN CN201821438555.4U patent/CN208806073U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786223A (en) * | 2021-01-14 | 2021-05-11 | 中广核研究院有限公司 | Flow stabilizing device, waste heat discharge system and flow stabilizing method |
| CN112786223B (en) * | 2021-01-14 | 2023-10-31 | 中广核研究院有限公司 | Waste heat discharging system and flow stabilizing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |