CN108170068A - Nuclear Power Station grade pump intake filter device monitoring system, method - Google Patents
Nuclear Power Station grade pump intake filter device monitoring system, method Download PDFInfo
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- CN108170068A CN108170068A CN201611122157.7A CN201611122157A CN108170068A CN 108170068 A CN108170068 A CN 108170068A CN 201611122157 A CN201611122157 A CN 201611122157A CN 108170068 A CN108170068 A CN 108170068A
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- Prior art keywords
- differential pressure
- alarm
- filter device
- grade pump
- intake filter
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of Nuclear Power Station grade pump intake filter device monitoring system, method, system includes：Differential pressure measuring module, is used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure threshold value, then to alarm response module output alarm signal；Alarm response module, is used for：When the alarm signal for receiving the output of differential pressure measuring module, then alarmed or export signal out of service to core grade pump control module；Core grade pump control module, is used for：Start or stop core grade pump, and in the signal out of service for receiving the output of alarm response module, stop core grade pump.Compared with prior art, the present invention has the following effects that：Core grade pump intake filter net jam protection act carries out intelligentized improvement when the present invention debugs stage unit starting to nuclear power station, and increases warning function, and very easily core grade pump intake strainer differential pressure can be monitored and termination of pumping, cut pump operation.
Description
Technical field
The invention belongs to nuclear power station technical field, it is more particularly related to which a kind of Nuclear Power Station grade is pumped into and makes a slip of the tongue
Filter device monitoring and control system, method.
Background technology
The needs of stage unit starting are debugged according to nuclear power station, foreign matter enters the pump housing in fluid media (medium) in order to prevent, influences
The safety and normal operation of pump are equipped with interim filter device in pump intake.During nuclear power station normal operation, fluid media (medium) meets fortune
In the case of row requirement, interim filter device needs are removed.Since the strainer density in the interim filter device of pump intake is thin
It causes, impurity (water soluble paper, welding slag, cotton foreign matter etc.) is shut off by strainer in fluid causes the circulation area of flow to reduce, and can make
Pump inlet pressure reduces and causes cavitation, so needing to find simultaneously termination of pumping in time, removes interim strainer, interim strainer is rushed
It washes or replaces.In the presence of blocking is serious and has big metallic foreign body, strainer may damage breakage, and foreign matter will enter pump
Internal portion or even operation channel interior, extensive damage is caused to pump, pipeline and other equipment.How to be supervised by effective means
Depending on the operating condition of interim filter device, to handle in time it when filter net jam, this is one urgently to be resolved hurrily
The problem of.
Because the interim filter device of pump intake belongs to the makeshift device of nuclear power station debugging stage unit starting, normally transported in unit
Between the departure date, medium is met the requirements, and interim filter device needs are removed, therefore there is no run feelings to strainer in design
Condition designs corresponding monitoring device and protection control logic.The debugging stage is monitored in real time at the scene mainly by special messenger, monitoring
The parameters such as pump inlet pressure meter reading, flow and pump operation electric current, when parameter generates exception, monitoring personnel notifies master control in time
Room personnel carry out termination of pumping or cut pump operation.
Existing monitoring method, there are following defects：
Monitoring and termination of pumping, cut pump etc. operations all manually carry out, not only human cost is higher, timely responds to difference,
But also there is very big people because of failure risk, can not effectively ensure core grade equipment safety can be used and nuclear power station unit station it is steady
Fixed operation.
Invention content
It is an object of the invention to：A kind of safe and reliable, simple and practical, strong functional Nuclear Power Station grade pump intake is provided
Filter device monitoring system, method.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of monitoring of Nuclear Power Station grade pump intake filter device to be
System, including：
Differential pressure measuring module, is used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure threshold
During value, then to alarm response module output alarm signal；
Alarm response module, is used for：When receive differential pressure measuring module output alarm signal, then alarmed or to
Core grade pump control module exports signal out of service；
Core grade pump control module, is used for：Start or stop core grade pump, and receive stopping for alarm response module output
Only during run signal, stop core grade pump.
A kind of improvement as Nuclear Power Station grade pump intake filter device monitoring system of the present invention：
The differential pressure measuring module, is specifically used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than in advance
If during the first differential pressure threshold value, then exporting the first alarm signal to alarm response module, when differential pressure is more than default second differential pressure threshold value
When, then the second alarm signal is exported to alarm response module, wherein the second differential pressure threshold value is more than the first differential pressure threshold value；
Alarm response module, is specifically used for：When the first alarm signal for receiving the output of differential pressure measuring module, then reported
It is alert, when the second alarm signal for receiving the output of differential pressure measuring module, then export signal out of service to core grade pump control module.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the differential pressure measuring mould
Block, including：
It is poor to be provided with first on measure loop for the measure loop being respectively communicated with the core grade pump intake filter device both ends
It compresses switch and the second differential pressure switch, the closure trigger value of the first differential pressure switch is set as the first differential pressure threshold value, the second differential pressure
The closure trigger value of switch is set as the second differential pressure threshold value；
First differential pressure switch is connect with the alarm response module, and the first alarm signal is exported when the first differential pressure switch is closed
Number；
Second differential pressure switch is connect with the alarm response module, and the second alarm signal is exported when the second differential pressure switch is closed
Number.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the measure loop passes through
First isolating valve is connected with the first end of filter device, is connected by the second isolating valve with the second end of filter device.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the alarm response module
Including：
Alarm unit is used for：When first differential pressure switch is closed, sound-light alarm is sent out；
Stop unit is used for：When second differential pressure switch is closed, letter out of service is exported to core grade pump control module
Number.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the alarm unit, packet
It includes：Power supply, alarm circuit, the first differential pressure switch access circuit, power supply connect respectively with alarm circuit and the first differential pressure switch
Entry loop connects, and alarm circuit includes the alarm being sequentially connected in series with power supply, the controlled terminal of alarm relay, the first differential pressure
Switch access circuit includes the control terminal of alarm relay, the switch terminals of the first differential pressure switch that are sequentially connected in series with power supply, described
Alarm relay is normally opened relay.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the alarm unit is gone back
Including the first divider resistance being connected in alarm circuit.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stop unit, packet
It includes：Power supply stops performing circuit, the second differential pressure switch access circuit, and power supply is opened respectively with stopping execution circuit and the first differential pressure
The connection of access circuit is closed, stops execution circuit and includes performing output terminal with the stopping that power supply is sequentially connected in series, stops performing relay
Controlled terminal, the second differential pressure switch access circuit includes performing the control terminal of relay, the with the stopping that power supply is sequentially connected in series
The switch terminals of two differential pressure switches, it is described to stop performing relay as normally opened relay.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stopping performs output
End include two stopping output terminals, two stopping output terminals respectively with the stop signal trigger relay of core grade pump control module
The both ends connection of control terminal.
As a kind of improvement of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stop unit is gone back
Stop performing the second divider resistance in circuit including being connected on.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of Nuclear Power Station grade pump intake filter device monitoring sides
Method, including：
Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure threshold value, then exports alarm signal
Number；
When receiving alarm signal, then alarmed or to exporting signal out of service；
When receiving signal out of service, stop core grade pump.
A kind of improvement as Nuclear Power Station grade pump intake filter device monitoring method of the present invention：
Detection core grade pump intake filter device both ends differential pressure, when differential pressure is more than default differential pressure threshold value, then exports report
Alert signal, specifically includes：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default first differential pressure threshold value,
The first alarm signal is then exported, when differential pressure is more than default second differential pressure threshold value, then the second alarm signal is exported, wherein second is poor
Threshold value is pressed to be more than the first differential pressure threshold value；
It is described to receive alarm signal, then it is alarmed or to signal out of service is exported, is specifically included：Work as reception
It to the first alarm signal, then alarms, when receiving the second alarm signal, then exports signal out of service.
Compared with prior art, Nuclear Power Station grade pump intake filter device monitoring system of the invention has the following effects that：
Core grade pump intake filter net jam protection act carries out intelligent when the present invention debugs stage unit starting to nuclear power station
Improvement, and increase warning function, very easily core grade pump intake strainer differential pressure can be monitored and termination of pumping, cut pump behaviour
Make.
Description of the drawings
With reference to the accompanying drawings and detailed description, to Nuclear Power Station grade pump intake filter device monitoring system of the present invention and
Advantage is described in detail.
Fig. 1 is a kind of system module figure of Nuclear Power Station grade pump intake filter device monitoring system of the present invention.
Fig. 2 is rung for a kind of differential pressure measuring module of Nuclear Power Station grade pump intake filter device monitoring system of the present invention and alarm
Answer module diagram.
Fig. 3 is a kind of core grade pump control module signal of Nuclear Power Station grade pump intake filter device monitoring system of the present invention
Figure.
Fig. 4 is a kind of work flow diagram of Nuclear Power Station grade pump intake filter device monitoring method of the present invention.
Specific embodiment
In order to which the goal of the invention, technical solution and its advantageous effects that make the present invention are more clear, below in conjunction with attached drawing
And specific embodiment, the present invention will be described in further detail.It should be understood that the specific reality described in this specification
Mode is applied just for the sake of explaining the present invention, is not intended to limit the present invention.
Referring to Fig. 1, a kind of system module figure of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, packet
It includes：
Differential pressure measuring module 10, is used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure
During threshold value, then to alarm response module output alarm signal；
Alarm response module 20, is used for：When receive differential pressure measuring module output alarm signal, then alarmed or
Signal out of service is exported to core grade pump control module；
Core grade pump control module 30, is used for：Start or stop core grade pump, and receive the output of alarm response module
During signal out of service, stop core grade pump.
Differential pressure measuring module 10 of the present invention is detected core grade pump intake filter device both sides differential pressure, wherein filter device
Predominantly strainer.When differential pressure is more than default differential pressure threshold value, then to 20 output alarm signal of alarm response module, alarm response mould
Block 20 receives the alarm signal of differential pressure measuring module output, then being alarmed or being exported to core grade pump control module 30 stops
Run signal, core grade pump control module 30 needs to start or stops core grade according to user to be pumped, meanwhile, it is rung when it receives alarm
During the signal out of service that module is answered to export, stop core grade pump.
Core grade pump intake filter net jam protection act carries out intelligent when the present invention debugs stage unit starting to nuclear power station
Improvement, and increase warning function, very easily core grade pump intake strainer differential pressure can be monitored and termination of pumping, cut pump behaviour
Make.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention：
The differential pressure measuring module 10, is specifically used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than
During default first differential pressure threshold value, then the first alarm signal is exported to alarm response module, when differential pressure is more than default second differential pressure threshold
During value, then the second alarm signal is exported to alarm response module, wherein the second differential pressure threshold value is more than the first differential pressure threshold value；
Alarm response module 20, is specifically used for：When the first alarm signal for receiving the output of differential pressure measuring module, then carry out
Alarm when the second alarm signal for receiving the output of differential pressure measuring module, then exports letter out of service to core grade pump control module
Number.
The present embodiment first triggers filter net jam alarm, such master control room examination after pump intake strainer differential pressure high threshold triggers
Effective intervening measure manual termination of pumping or switchable pump in time can be taken before termination of pumping threshold triggers by testing operating personnel, be dropped significantly
The damage risk of low core grade important equipment and the disturbance risk of nuclear power generating sets.After when strainer both sides, pressure difference persistently increases, triggering is jumped
Pump threshold value is automatically performed termination of pumping action.
Referring to Fig. 2, in one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the difference
Detection module 10 is pressed, including：
The measure loop 11 being respectively communicated with the core grade pump intake filter device both ends is provided on measure loop 11
One differential pressure switch 12 and the second differential pressure switch 13, the closure trigger value of the first differential pressure switch 12 are set as the first differential pressure threshold
Value, the closure trigger value of the second differential pressure switch 13 are set as the second differential pressure threshold value；
First differential pressure switch 12 is connect with the alarm response module 20, and the first report is exported when the first differential pressure switch is closed
Alert signal；
Second differential pressure switch 13 is connect with the alarm response module 20, and the second report is exported when the second differential pressure switch is closed
Alert signal.
Different alarm threshold values can be set according to different system, the specification of different operating modes and strainer in itself and jump pump threshold
Value.The differential pressure of general core grade pump intake strainer is between the range of 0-100KPa, and the differential pressure of 0-100KPa can be selected to open
It closes.
The present embodiment realizes differential pressure measuring by two differential pressure switches.
Referring to Fig. 2, in one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the inspection
Survey time road is connected by the first isolating valve 14 with the first end of filter device 16, passes through the second isolating valve 15 and filter device 16
Second end connects.
Filter device 16 is to be arranged on the filter screen that core grade pumps 17 entrances.Specifically, the first differential pressure switch 12 and second
After being closed trigger value after being set respectively in differential pressure switch 13, by low-pressure side to sky, opened using the table of suppressing of corresponding specification in differential pressure
The high-pressure side of pass is suppressed, and the break-make of the output terminal of differential pressure switch is measured with multimeter, is existed using the table of suppressing of corresponding specification
It is alarmed in circuit and the verification of termination of pumping signal, confirmation protective device circuit can realize its function.
Referring to Fig. 2, in one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the report
Alert respond module 20 includes：
Alarm unit 21, is used for：When first differential pressure switch 12 is closed, sound-light alarm is sent out；
Stop unit 22, is used for：When second differential pressure switch 13 is closed, is exported to core grade pump control module and stop fortune
Row signal.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the alarm unit 21,
Including：Power supply 23, alarm circuit, the first differential pressure switch access circuit, power supply 23 respectively with alarm circuit and the first differential pressure
Switch access circuit connection, alarm circuit include the alarm 211 being sequentially connected in series with power supply 23, the quilt of alarm relay 212
Control terminal, the first differential pressure switch access circuit include the control terminal of alarm relay 212 being sequentially connected in series with power supply 23, first poor
Compress switch 12 switch terminals, the alarm relay 212 be normally opened relay.
Specifically, when the first differential pressure switch 12 is triggered, so as to closure switch end so that the quilt of alarm relay 212
Control terminal is closed so that alarm circuit is connected, and ground connection and electric equipment compartment all generate corresponding alarm.If it is desirable, the alarm
After can also being acquired by nuclear plant digital I＆C system (Digital Instrument＆Control System), teletransmission
It is shown to master control room.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the alarm unit 21,
Further include the first divider resistance 213 being connected in alarm circuit.
The present embodiment increases by the first divider resistance 213 and is distributed for voltage, and resistance value is adjustable, is carried to alarm relay 212
For suitable power source.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stop unit 22,
Including：Power supply 23 stops performing circuit, the second differential pressure switch access circuit, and power supply 23 is respectively with stopping performing circuit and first
Differential pressure switch access circuit connection, stop performing circuit include the stopping being sequentially connected in series with power supply 23 perform output terminal 221,222,
Stop performing the controlled terminal of relay 223, the stopping that the second differential pressure switch access circuit includes being sequentially connected in series with power supply 23 is held
The switch terminals of the control terminal of row relay 223, the second differential pressure switch 13, it is described to stop performing relay 223 as normally opened relay.
After the second differential pressure switch 13 is triggered, stop performing relay 223 and connecting stopping performing circuit, power supply 23
48VDC performs output terminal 221,222 by stopping and is sent to core grade pump control module 30, triggering termination of pumping action.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stopping performs output
End includes two stopping output terminals 221,222, and two stop output terminal 221,222 and believe respectively with the stopping of core grade pump control module
The both ends connection of the control terminal of number trigger relay.
It please refers to Fig.3, core grade pump control module 30 (can be handed over by 48VDC (being provided by DCS), 110V (direct current) and 6.6KV
Stream) three current supply circuit compositions.The break-make in 48VDC circuits is controlled, and then control electrical panel by logic of the configuration inside DCS
The break-makes of 110V and 6.6K V current supply circuits realizes the start-stop of pump, and operation principle is as follows：
1st, after DCS side joints, which receive, opens pump instruction：
(1) DCS sides ,+48VDC " CLOSE " contactor are closed, and 48V circuits are connected；
(2) 001XR intermediate relays are powered, and 001XR-JA contactors are closed, and 002XR-JA contactors are natively closed,
110V circuits are connected；
(3) 003XR intermediate relays are powered, and 003XR-JA contactors are closed, and 001JA contactors are closed 6.6KV power electrics
It send to core grade and pumps, then pump startup.
2nd, after pump instruction is opened in DCS sides to disappear：
(1) 001XR contactors disconnect, and 001XR-JA contactors disconnect, and 48VDC circuits disconnect；
(2) since 002XR-JA and 003XR-JA contactors are still within being closed, 003XR intermediate relays are still powered,
001JA contactors are just constantly in closed state, then pump continues to run well.
3rd, after DCS side joints receive termination of pumping instruction：
(1) DCS sides ,+48VDC " TRIP " contactor are closed, and 48V circuits are connected；
(2) 002XR intermediate relays are powered, and 002XR-JA contactors disconnect, and 110V circuits disconnect, relay among 003XR
Device dead electricity disconnects, 003XR-JA and 001JA contactors disconnect, and 6.6KV circuits disconnect, and pump is out of service.
It can be seen that the start and stop of pump are to instruct to control electrical panel to control the break-make in 48V circuits by DCS internal logics
The break-make in 110V and 6.6KV circuits is completed.
In the present embodiment, stop relay among output terminal 221,222 and 002XR in core grade pump control module 30 by two
The both ends 31,32 of device connect respectively, so as to which after the second differential pressure switch 13 is triggered, the 48VDC of power supply 23 is inputted among 002XR
Relay so that pump is out of service.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring system of the present invention, the stop unit 22,
It further includes to be connected on and stops performing the second divider resistance 224 in circuit.
The present embodiment increases by the first divider resistance 224 and is distributed for voltage, and resistance value is adjustable, and relay is performed to stopping
223 provide suitable power source.
Core grade pump intake filter net jam protection act carries out intelligent when the present invention debugs stage unit starting to nuclear power station
Improvement, and increase warning function, very easily core grade pump intake strainer differential pressure can be monitored and termination of pumping, cut pump behaviour
Make.
Referring to Fig. 4, a kind of work flow diagram of Nuclear Power Station grade pump intake filter device monitoring method of the present invention, packet
It includes：
Step S401, detection core grade pump intake filter device both ends differential pressure are when differential pressure is more than default differential pressure threshold value, then defeated
Go out alarm signal；
Step S402 when receiving alarm signal, is then alarmed or to exporting signal out of service；
Step S403 when receiving signal out of service, stops core grade pump.
In one embodiment of Nuclear Power Station grade pump intake filter device monitoring method of the present invention：
The step S401, specifically includes：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default the
During one differential pressure threshold value, then the first alarm signal is exported, when differential pressure is more than default second differential pressure threshold value, then export the second alarm signal
Number, wherein the second differential pressure threshold value is more than the first differential pressure threshold value；
The step S402, specifically includes：It when receiving the first alarm signal, then alarms, when receiving the second report
Alert signal, then export signal out of service.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, but these terms are merely for convenience of description, do not limit the present invention in any way.
Claims (12)
1. a kind of Nuclear Power Station grade pump intake filter device monitoring system, which is characterized in that including：
Differential pressure measuring module, is used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure threshold value
When, then to alarm response module output alarm signal；
Alarm response module, is used for：When the alarm signal for receiving the output of differential pressure measuring module, then alarmed or to core grade
Pump control module exports signal out of service；
Core grade pump control module, is used for：Start or stop core grade pump, and in the stopping fortune for receiving the output of alarm response module
During row signal, stop core grade pump.
2. Nuclear Power Station grade pump intake filter device monitoring system according to claim 1, it is characterised in that：
The differential pressure measuring module, is specifically used for：Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default the
During one differential pressure threshold value, then the first alarm signal is exported to alarm response module, when differential pressure is more than default second differential pressure threshold value, then
The second alarm signal is exported to alarm response module, wherein the second differential pressure threshold value is more than the first differential pressure threshold value；
Alarm response module, is specifically used for：When the first alarm signal for receiving the output of differential pressure measuring module, then alarm,
When the second alarm signal for receiving the output of differential pressure measuring module, then signal out of service is exported to core grade pump control module.
3. Nuclear Power Station grade pump intake filter device monitoring system according to claim 2, which is characterized in that the differential pressure
Detection module, including：
The measure loop being respectively communicated with the core grade pump intake filter device both ends is provided with the first differential pressure on measure loop and opens
It closes and the second differential pressure switch, the closure trigger value of the first differential pressure switch is set as the first differential pressure threshold value, the second differential pressure switch
Closure trigger value be set as the second differential pressure threshold value；
First differential pressure switch is connect with the alarm response module, and the first alarm signal is exported when the first differential pressure switch is closed；
Second differential pressure switch is connect with the alarm response module, and the second alarm signal is exported when the second differential pressure switch is closed.
4. Nuclear Power Station grade pump intake filter device monitoring system according to claim 3, which is characterized in that the detection
Circuit is connected by the first isolating valve with the first end of filter device, is connected by the second end of the second isolating valve and filter device
It is logical.
5. Nuclear Power Station grade pump intake filter device monitoring system according to claim 3, which is characterized in that the alarm
Respond module includes：
Alarm unit is used for：When first differential pressure switch is closed, sound-light alarm is sent out；
Stop unit is used for：When second differential pressure switch is closed, signal out of service is exported to core grade pump control module.
6. Nuclear Power Station grade pump intake filter device monitoring system according to claim 5, which is characterized in that the alarm
Unit, including：Power supply, alarm circuit, the first differential pressure switch access circuit, power supply respectively with alarm circuit and the first differential pressure
Switch access circuit connection, alarm circuit include the alarm being sequentially connected in series with power supply, the controlled terminal of alarm relay, the
One differential pressure switch access circuit includes the control terminal of alarm relay being sequentially connected in series with power supply, the switch of the first differential pressure switch
End, the alarm relay are normally opened relay.
7. Nuclear Power Station grade pump intake filter device monitoring system according to claim 6, which is characterized in that the alarm
Unit further includes the first divider resistance being connected in alarm circuit.
8. Nuclear Power Station grade pump intake filter device monitoring system according to claim 5, which is characterized in that the stopping
Unit, including：Power supply stops performing circuit, the second differential pressure switch access circuit, and power supply is respectively with stopping performing circuit and first
Differential pressure switch access circuit connection stops execution circuit and includes performing output terminal with the stopping that power supply is sequentially connected in series, stops performing
The controlled terminal of relay, the second differential pressure switch access circuit include performing the control of relay with the stopping that power supply is sequentially connected in series
End, the switch terminals of the second differential pressure switch, it is described to stop performing relay as normally opened relay.
9. Nuclear Power Station grade pump intake filter device monitoring system according to claim 8, which is characterized in that the stopping
It performs output terminal and includes two stopping output terminals, two stop output terminal and triggered respectively with the stop signal of core grade pump control module
The both ends connection of the control terminal of relay.
10. Nuclear Power Station grade pump intake filter device monitoring system according to claim 8, which is characterized in that described to stop
Stop element further includes the second divider resistance for being connected on and stopping in execution circuit.
11. a kind of Nuclear Power Station grade pump intake filter device monitoring method, which is characterized in that including：
Core grade pump intake filter device both ends differential pressure is detected, when differential pressure is more than default differential pressure threshold value, then output alarm signal；
When receiving alarm signal, then alarmed or to exporting signal out of service；
When receiving signal out of service, stop core grade pump.
12. Nuclear Power Station grade pump intake filter device monitoring method according to claim 11, it is characterised in that：
Detection core grade pump intake filter device both ends differential pressure, when differential pressure is more than default differential pressure threshold value, then exports alarm signal
Number, it specifically includes：Core grade pump intake filter device both ends differential pressure is detected, it is when differential pressure is more than default first differential pressure threshold value, then defeated
Go out the first alarm signal, when differential pressure is more than default second differential pressure threshold value, then the second alarm signal is exported, wherein the second differential pressure threshold
Value is more than the first differential pressure threshold value；
It is described to receive alarm signal, then it is alarmed or to signal out of service is exported, is specifically included：When receiving
One alarm signal, then alarm, and when receiving the second alarm signal, then exports signal out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122157.7A CN108170068A (en) | 2016-12-08 | 2016-12-08 | Nuclear Power Station grade pump intake filter device monitoring system, method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122157.7A CN108170068A (en) | 2016-12-08 | 2016-12-08 | Nuclear Power Station grade pump intake filter device monitoring system, method |
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| Publication Number | Publication Date |
|---|---|
| CN108170068A true CN108170068A (en) | 2018-06-15 |
Family
ID=62526522
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611122157.7A Pending CN108170068A (en) | 2016-12-08 | 2016-12-08 | Nuclear Power Station grade pump intake filter device monitoring system, method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966578A (en) * | 2012-11-30 | 2013-03-13 | 中广核工程有限公司 | Pressure control method and device for pump unit of nuclear power station |
| CN105047240A (en) * | 2015-06-02 | 2015-11-11 | 深圳中广核工程设计有限公司 | Nuclear-grade pump intake filter screen differential pressure protector of PWR nuclear power plant |
-
2016
- 2016-12-08 CN CN201611122157.7A patent/CN108170068A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966578A (en) * | 2012-11-30 | 2013-03-13 | 中广核工程有限公司 | Pressure control method and device for pump unit of nuclear power station |
| CN105047240A (en) * | 2015-06-02 | 2015-11-11 | 深圳中广核工程设计有限公司 | Nuclear-grade pump intake filter screen differential pressure protector of PWR nuclear power plant |
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Effective date of registration: 20190103 Address after: 518124 Office Building of Daya Bay Nuclear Power Base Engineering Company, Pengfei Road, Dapeng New District, Shenzhen City, Guangdong Province Applicant after: China Nuclear Power Engineering Co., Ltd. Applicant after: Shenzhen China Nuclear Power Design Co., Ltd. Applicant after: China General Nuclear Power Corporation Address before: 518124 Office Building of Daya Bay Nuclear Power Base Engineering Company, Pengfei Road, Dapeng New District, Shenzhen City, Guangdong Province Applicant before: China Nuclear Power Engineering Co., Ltd. Applicant before: China General Nuclear Power Corporation |
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