CN103337267B - The drain valve of heater control method of nuclear power station, Apparatus and system - Google Patents
The drain valve of heater control method of nuclear power station, Apparatus and system Download PDFInfo
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- CN103337267B CN103337267B CN201310297850.8A CN201310297850A CN103337267B CN 103337267 B CN103337267 B CN 103337267B CN 201310297850 A CN201310297850 A CN 201310297850A CN 103337267 B CN103337267 B CN 103337267B
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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
Abstract
The invention discloses the drain valve of heater control method of a kind of nuclear power station, comprising: the hydrophobic control valve device of nuclear power station receives the level imbalance signal that simulation calculation module sends, level imbalance signal is to produce after heater level measurement compares with setting value；The hydrophobic control valve device of nuclear power station receives the drain valve of heater of scattered control system transmission and opens command signal；The hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve and drain valve valve is controlled.Drain valve valve is controlled by the present invention by opening command signal according to level imbalance signal and drain valve, it is achieved that drain valve is carried out Based Intelligent Control.Additionally, the invention also discloses the drain valve of heater of a kind of nuclear power station to control device and system.
Description
Technical field
The invention belongs to nuclear power station control field, it is more particularly related to the drain valve of heater control method of a kind of nuclear power station, Apparatus and system.
Background technology
The function of the high-pressure feed-water heater system of nuclear power station is the feedwater of the heating secondary circuit of bleeding utilizing steam turbine high-pressure cylinder, and receives the hydrophobic of separator.By improving the temperature of secondary circuit feedwater, improve unit efficiency of thermal cycle further.Divide by system flow and can be broadly divided into feedwater part, part of drawing gas, hydrophobic portion are graded.What main feed water pipe channel temp was relatively low feeds water and the high-temperature steam drawn gas from high pressure cylinder, surface-type heat exchange is carried out in high-pressure heater, the temperature of main feedwater raises, drawing gas after heat exchange condenses into water, and the drain regulating valve again through heater regulates the liquid level in heater in the scope running permission.In order to prevent, heater liquid level is too high causes hydrophobic return steam turbine, threatens Turbine Safety, and each heater should have enough hydrophobic abilities.In order to ensure the hydrophobic ability of heater, all devise 2 hydrophobic pipelines for every heater: normal hydrophobic pipeline and lash-up drain pipeline.The pressured difference of normal hydrophobic pipeline is directly discharged into oxygen-eliminating device, when unit load is relatively low, water with during by hydrophobic press-in oxygen-eliminating device, is drained into condenser draining to condenser by connecting the lash-up drain valve of condenser by the insufficient pressure of high-pressure heater, it is prevented that height adds that water level is too high affects Turbine Safety.
During nuclear power station runs, the control of heater lash-up drain valve is divided into analog quantity to regulate and electromagnetic valve controls, when the liquid level of heater is lower than high two liquid level (HighHighLevel, it is called for short H2) time, H2 value liquid-level switch is output as 0, lash-up drain valve accepts heater level measurement (LevelMeasurement, it is called for short MN) add liquid level setting value through simulation calculation module (AnalogCalculationModule with height, be called for short RG module) compare after, the level imbalance instruction of output carries out the adjustment of 4-20mA through PID controller, controls the aperture of valve；When the liquid level of heater is higher than high two liquid level H2, H2 value liquid-level switch is output as 1, lash-up drain valve electromagnetic valve excitation, sends out instruction, makes pneumatic control valve discharge compression air, and drain valve is opened soon.
The control program of existing lash-up drain valve, control to be logically present following defect: as when below 450MW load, owing to extraction pressure reduces, the normal hydrophobic reduced capability of high-pressure heater, when regulating mainly by lash-up drain, after H2 value action, directly making Field adjustment valve electromagnetic valve excitation, lash-up drain valve is opened soon, and water level dramatic decrease is rear (lash-up drain valve control instruction can return in 4mA state) below H-number, electromagnetic valve is loss of excitation again, and valve entirely can close again under 4mA instruction；Liquid level can carry out again the rising of another wheel, goes round and begins again and can not stablize, and valve is chronically at the state of rectilinear oscillation.Control to be formed without the feedback of effect between regulating command, easily caused by both frequent reciprocating action under certain condition, cause stem wear relatively big, have a strong impact on the life-span of valve, add nuclear power station operating cost.
Summary of the invention
It is an object of the invention to: provide a kind of in the control process of nuclear power station running drain valve, by opening command signal according to level imbalance signal and drain valve, drain valve valve is controlled, drain valve in nuclear power station runs is avoided to control between regulating command separate, valve is caused to be chronically at the state of rectilinear oscillation, cause stem wear relatively big, overcome cost and the problem of potential safety hazard increase.
In order to realize foregoing invention purpose, the present invention provides the drain valve of heater control method of a kind of nuclear power station, comprising:
The hydrophobic control valve device of nuclear power station receives the level imbalance signal that simulation calculation module sends, and described level imbalance signal is to produce after heater level measurement compares with setting value；
The hydrophobic control valve device of nuclear power station receives the drain valve of heater of scattered control system transmission and opens command signal；
The hydrophobic control valve device of nuclear power station is opened command signal according to described level imbalance signal and described drain valve and described drain valve valve is controlled.
As a kind of improvement of the drain valve of heater control method of nuclear power station of the present invention, described method also includes:
The reference value of drain valve valve opening is set, the hydrophobic control valve device of described nuclear power station is opened command signal according to described level imbalance signal and described drain valve and is controlled including to described drain valve valve, and the hydrophobic control valve device of nuclear power station is opened command signal according to described level imbalance signal and described drain valve and regulated described drain valve valve opening to described reference value.
A kind of improvement as the drain valve of heater control method of nuclear power station of the present invention, described method also includes: arrange the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of described nuclear power station is opened command signal according to described level imbalance signal and described drain valve and the adjustment of described drain valve valve opening is included to described reference value, the hydrophobic control valve device of nuclear power station opens command signal according to described level imbalance signal and described drain valve, regulates described drain valve valve opening to described reference value according to the speed that the drain valve valve arranged is opened and/or closed.
As a kind of improvement of the drain valve of heater control method of nuclear power station of the present invention, described the speed that drain valve valve is opened and/or closed is set, including:
By the parameter setting of manual operator in scattered control system configuration, determine the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of described nuclear power station opens command signal according to described level imbalance signal and described drain valve, according to the speed that the drain valve valve arranged is opened and/or closed, the adjustment of described drain valve valve opening is included to described reference value, the command signal of the speed that the drain valve valve that the nuclear power station hydrophobic control valve device described manual operator of reception sends is opened and/or closed, command signal is opened according to described level imbalance signal and described drain valve, described drain valve valve opening is regulated to described reference value.
In order to realize foregoing invention purpose, present invention also offers the drain valve of heater of a kind of nuclear power station and control device, comprising:
First receiver module, for receiving the level imbalance signal that simulation calculation module sends, described level imbalance signal is to produce after heater level measurement compares with setting value；
Second receiver module, the drain valve of heater sent for receiving scattered control system opens command signal；
Control module, for opening command signal according to described level imbalance signal and described drain valve, described drain valve valve is controlled.
As a kind of improvement of the drain valve of heater control device of nuclear power station of the present invention, described control module includes:
First arranges unit, for arranging the reference value of drain valve valve opening, described control module is opened command signal according to described level imbalance signal and described drain valve and is controlled including to described drain valve valve, controls module and opens command signal by described drain valve valve opening adjustment to described reference value according to described level imbalance signal and described drain valve.
As a kind of improvement of the drain valve of heater control device of nuclear power station of the present invention, described control module also includes:
Second arranges unit, for arranging the speed that drain valve valve is opened and/or closed, described control module is opened command signal according to described level imbalance signal and described drain valve and the adjustment of described drain valve valve opening is included to described reference value, control module and open command signal according to described level imbalance signal and described drain valve, according to the speed that the drain valve valve arranged is opened and/or closed, described drain valve valve opening is regulated to described reference value.
In order to realize foregoing invention purpose, present invention also offers the drain valve of heater of a kind of nuclear power station and control system, comprising:
Simulation calculation module, for the level imbalance signal sent to the hydrophobic control valve device of nuclear power station, described level imbalance signal is to produce after heater level measurement compares with setting value；
Scattered control system, opens command signal for the drain valve of heater sent to the hydrophobic control valve device of nuclear power station；
The hydrophobic control valve device of nuclear power station, for receiving the level imbalance signal that described simulation calculation module sends, described level imbalance signal is to produce after heater level measurement compares with setting value, and the drain valve of heater receiving the transmission of described scattered control system opens command signal；And open command signal according to described level imbalance signal and described drain valve described drain valve valve is controlled.
As a kind of improvement of the drain valve of heater control system of nuclear power station of the present invention, the hydrophobic control valve device of described nuclear power station is additionally operable to:
The reference value of drain valve valve opening is set, the hydrophobic control valve device of described nuclear power station is opened command signal according to described level imbalance signal and described drain valve and is controlled including to described drain valve valve, and the hydrophobic control valve device of nuclear power station is opened command signal according to described level imbalance signal and described drain valve and regulated described drain valve valve opening to described reference value.
As a kind of improvement of the drain valve of heater control system of nuclear power station of the present invention, the hydrophobic control valve device of described nuclear power station is additionally operable to:
The speed that drain valve valve is opened and/or closed is set, the hydrophobic control valve device of described nuclear power station is opened command signal according to described level imbalance signal and described drain valve and the adjustment of described drain valve valve opening is included to described reference value, the hydrophobic control valve device of nuclear power station opens command signal according to described level imbalance signal and described drain valve, regulates described drain valve valve opening to described reference value according to the speed that the drain valve valve arranged is opened and/or closed.
As a kind of improvement of the drain valve of heater control system of nuclear power station of the present invention, described scattered control system is additionally operable to:
The parameter of manual operator is set, determine the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of described nuclear power station opens command signal according to described level imbalance signal and described drain valve, according to the speed that the drain valve valve arranged is opened and/or closed, the adjustment of described drain valve valve opening is included to described reference value, the command signal of the speed that the drain valve valve that the nuclear power station hydrophobic control valve device described manual operator of reception sends is opened and/or closed, command signal is opened according to described level imbalance signal and described drain valve, described drain valve valve opening is regulated to described reference value.
Compared with prior art, the present invention has following Advantageous Effects based on the drain valve of heater control method of nuclear power station, Apparatus and system: the hydrophobic control valve device of nuclear power station is by opening command signal according to level imbalance signal and drain valve, realize drain valve valve is precisely controlled, avoid mutually isolating between drain valve on-off control and switch-mode regulation instruction in nuclear power station runs, the valve that each self-operating causes is chronically at the state of rectilinear oscillation, cause stem wear relatively big, overcome cost and the problem of potential safety hazard increase；Simultaneously as arrange the reference value of drain valve valve opening and open and/or shutdown rate, make valve according to being set for intelligent switch, good technique effect can be obtained.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, drain valve of heater control method and system to nuclear power station of the present invention are described in detail, wherein:
Fig. 1 provides the flow chart of an embodiment of the drain valve of heater control method of nuclear power station of the present invention.
Fig. 2 provides the schematic diagram of an embodiment of the drain valve of heater control device of nuclear power station of the present invention.
Fig. 3 provides the schematic diagram of another embodiment of the drain valve of heater control device of nuclear power station of the present invention.
Fig. 4 provides the schematic diagram of an embodiment of the drain valve of heater control system of nuclear power station of the present invention.
Detailed description of the invention
In order to make the goal of the invention of the present invention, technical scheme and Advantageous Effects thereof become apparent from, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.It should be appreciated that the detailed description of the invention described in this specification is only used to explain the present invention, it is not intended to limit the present invention.
PID (proportional-integral-differential) controller, as existing more than the 70 year history of controller practical the earliest, is currently still most widely used industrial control unit (ICU).PID controller is easily understood, and does not need the prerequisite such as accurate system model, thus become the controller being most widely used in using.Tank level control system is the important component part of Nuclear Power Plant Simulation amount control system, at present, Nuclear Power Industry begins to use PID control and controller thereof or intelligent PID controller, nuclear power generating equipment in the nuclear power station of CPR1000 heap-type has various PID controller product, and the present invention is mainly through PID control realization Liquid level.
Fig. 1 provides the drain valve of heater control method of a kind of nuclear power station, specifically includes:
Step 101, the hydrophobic control valve device of nuclear power station receives the level imbalance signal that simulation calculation module sends, and level imbalance signal is to produce after heater level measurement compares with setting value.
Concrete, liquid level sensor measures the level value in front heater, and after the signal of this level measurement is sent to the signal that simulation calculation module RG, simulation calculation module RG receive this level measurement, compare with the level set value pre-set, obtain level imbalance value.The signal of level imbalance is sent to the hydrophobic control valve device of nuclear power by simulation calculation module RG.Such as; when the liquid level of heater is lower than high two liquid level H2; H2 value liquid-level switch output 0; namely level measurement is less than level set value; the not actuated protection of electromagnetic valve excitation valve; PID valve wide open (namely valve opening is 100%), RG module output level measurement is less than the level imbalance signal of level set value.The hydrophobic control valve device of nuclear power station receives this level imbalance signal.
Step 103, the hydrophobic control valve device of nuclear power station receives the drain valve of heater of scattered control system transmission and opens command signal.
Concrete, liquid level sensor measures the level value in front heater, and is compared with the level set value pre-set by the letter of this level measurement, if level measurement is more than level set value, then nuclear power station drain valve starts excitation, sends valve and opens command signal.When the liquid level of heater is higher than high two liquid level H2, H2 value liquid-level switch output 1, namely level measurement is more than level set value, electromagnetic valve excitation valve starting protection, sends drain valve of heater and opens command signal.The hydrophobic control valve device of nuclear power station receives this drain valve of heater and opens command signal.
Step 105, the hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve and drain valve valve is controlled.
Concrete, the hydrophobic control valve device of nuclear power station arranges the reference value of drain valve valve opening, and the hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve and regulated drain valve valve opening to reference value.By the deviation of level measurement Yu level set value is analyzed, send 4-20mA control signal to drain valve, control valve opening, thus realizing liquid level is controlled accurately.
Optionally, the hydrophobic control valve device of nuclear power station arranges the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of nuclear power station opens command signal according to level imbalance signal and drain valve, regulates drain valve valve opening to reference value according to the speed that the drain valve valve arranged is opened and/or closed.By to controlling the speed that valve is opened and/or closed, thus realizing the carrying out of liquid-level switch is controlled accurately, and then realizing being precisely controlled liquid level.
Optionally, by the parameter setting of manual operator in scattered control system configuration, determine the speed that drain valve valve is opened and/or closed, the command signal of the speed that the drain valve valve that the hydrophobic control valve device reception manual operator of nuclear power station sends is opened and/or closed, open command signal according to level imbalance signal and described drain valve, drain valve valve opening is regulated to described reference value.
The embodiment of the present invention by the hydrophobic control valve device of nuclear power station by opening command signal according to level imbalance signal and drain valve, realize drain valve valve is precisely controlled, avoid mutually isolating between drain valve on-off control and switch-mode regulation instruction in nuclear power station runs, the valve that each self-operating causes is chronically at the state of rectilinear oscillation, cause stem wear relatively big, overcome cost and the problem of potential safety hazard increase；Meanwhile, by the deviation of level measurement Yu level set value is analyzed, sending 4-20mA control signal to drain valve, control valve opening and speed, thus realizing liquid level is controlled accurately, obtaining good technique effect.
Fig. 2 provides the schematic diagram of an embodiment of the drain valve of heater control device of a kind of nuclear power station, comprising: the first receiver module 201, second receives 203 and control module 205.
First receiver module 201, for receiving the level imbalance signal that simulation calculation module sends, level imbalance signal is to produce after heater level measurement compares with setting value.
Concrete, liquid level sensor measures the level value in front heater, and after the signal of this level measurement is sent to the signal that simulation calculation module RG, simulation calculation module RG receive this level measurement, compare with the level set value pre-set, obtain level imbalance value.The signal of level imbalance is sent the first receiver module 201 by simulation calculation module RG.Such as; when the liquid level of heater is lower than high two liquid level H2; H2 value liquid-level switch output 0; namely level measurement is less than level set value; the not actuated protection of electromagnetic valve excitation valve; PID valve wide open (namely valve opening is 100%), RG module output level measurement is less than the level imbalance signal of level set value.First receiver module 201 receives this level imbalance signal.
Second receiver module 203, the drain valve of heater sent for receiving scattered control system opens command signal.
Concrete, liquid level sensor measures the level value in front heater, and the letter of this level measurement is compared with the level set value pre-set, if level measurement is more than level set value, then nuclear power station drain valve starts excitation, sending valve and open command signal, the second receiver module 203 receives this information.When the liquid level of heater is higher than high two liquid level H2, H2 value liquid-level switch output 1, namely level measurement is more than level set value, electromagnetic valve excitation valve starting protection, sends drain valve of heater and opens command signal.Second receiver module 203 receives this drain valve of heater and opens command signal.
Control module 205, for opening command signal according to level imbalance signal and drain valve, drain valve valve is controlled.
The embodiment of the present invention by the hydrophobic control valve device of nuclear power station by opening command signal according to level imbalance signal and drain valve, realize drain valve valve is precisely controlled, avoid mutually isolating between drain valve on-off control and switch-mode regulation instruction in nuclear power station runs, the valve that each self-operating causes is chronically at the state of rectilinear oscillation, cause stem wear relatively big, overcome cost and the problem of potential safety hazard increase.
Control the schematic diagram of an embodiment of device incorporated by reference to the drain valve of heater providing a kind of nuclear power station referring to Fig. 3, Fig. 3, wherein, control module 301 and include first and unit 3011 and second is set unit 3013 is set.Concrete, control module 301, for opening command signal according to level imbalance signal and drain valve, drain valve valve is controlled.
First arranges unit 3011 arranges the reference value of drain valve valve opening, and first arranges unit 3011 opens command signal by drain valve valve opening adjustment to reference value according to level imbalance signal and drain valve.By the deviation of level measurement Yu level set value is analyzed, send 4-20mA control signal to drain valve, control valve opening, thus realizing liquid level is controlled accurately.
Second arranges unit 3013, for arranging the speed that drain valve valve is opened and/or closed, second arranges unit 3013 opens command signal according to level imbalance signal and drain valve, regulates drain valve valve opening to reference value according to the speed that the drain valve valve arranged is opened and/or closed.By to controlling the speed that valve is opened and/or closed, thus realizing the carrying out of liquid-level switch is controlled accurately, and then realizing being precisely controlled liquid level.
The schematic diagram of an embodiment of system is controlled incorporated by reference to the drain valve of heater providing a kind of nuclear power station referring to Fig. 4, Fig. 4, comprising: the hydrophobic control valve device 405 of simulation calculation module 401, scattered control system 403 and nuclear power station, wherein:
Simulation calculation module 401, for the level imbalance signal sent to the hydrophobic control valve device 405 of nuclear power station, level imbalance signal is to produce after heater level measurement compares with setting value.
Concrete, liquid level sensor measures the level value in front heater, and the signal of this level measurement is sent to simulation calculation module 401, after simulation calculation module 401 receives the signal of this level measurement, compare with the level set value pre-set, obtain level imbalance value.The signal of level imbalance is sent to the hydrophobic control valve device 405 of nuclear power by simulation calculation module 401.Such as; when the liquid level of heater is lower than high two liquid level H2; H2 value liquid-level switch output 0; namely level measurement is less than level set value; the not actuated protection of electromagnetic valve excitation valve; PID valve wide open (namely valve opening is 100%), simulation calculation module 401 exports the level measurement level imbalance signal less than level set value.The hydrophobic control valve device 405 of nuclear power station receives this level imbalance signal.
Scattered control system 403, opens command signal for the drain valve of heater sent to the hydrophobic control valve device of nuclear power station；
Liquid level sensor measures the level value in front heater, and the letter of this level measurement is compared with the level set value pre-set, if level measurement is more than level set value, then nuclear power station drain valve starts excitation, and scattered control system 403 sends valve and opens command signal.When the liquid level of heater is higher than high two liquid level H2, H2 value liquid-level switch output 1, namely level measurement is more than level set value, and electromagnetic valve excitation valve starting protection, scattered control system 403 sends drain valve of heater and opens command signal.The hydrophobic control valve device 405 of nuclear power station receives this drain valve of heater and opens command signal.
The hydrophobic control valve device 405 of nuclear power station, for receiving the level imbalance signal that simulation calculation module 401 sends, level imbalance signal is to produce after heater level measurement compares with setting value, and the drain valve of heater receiving scattered control system 403 transmission opens command signal；And open command signal according to level imbalance signal and drain valve drain valve valve is controlled.
The hydrophobic control valve device 405 of nuclear power station is additionally operable to arrange the reference value of drain valve valve opening, and the hydrophobic control valve device 405 of nuclear power station is opened command signal according to level imbalance signal and drain valve and regulated drain valve valve opening to reference value.
The hydrophobic control valve device 405 of nuclear power station is additionally operable to arrange the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device 405 of nuclear power station opens command signal according to level imbalance signal and drain valve, regulates drain valve valve opening to reference value according to the speed that the drain valve valve arranged is opened and/or closed.
Optionally, scattered control system 403 is additionally operable to the parameter of manual operator is set, determine the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device 405 of nuclear power station receives the command signal of speed that the drain valve valve that manual operator sends is opened and/or closed, open command signal according to level imbalance signal and drain valve, drain valve valve opening is regulated to reference value.
Can be seen that in conjunction with above detailed description of the present invention, relative to prior art, the present invention at least has following Advantageous Effects: by the hydrophobic control valve device of nuclear power station by opening command signal according to level imbalance signal and drain valve, realize drain valve valve is precisely controlled, avoid mutually isolating between drain valve on-off control and switch-mode regulation instruction in nuclear power station runs, the valve that each self-operating causes is chronically at the state of rectilinear oscillation, cause stem wear relatively big, overcome cost and the problem of potential safety hazard increase；Meanwhile, by the deviation of level measurement Yu level set value is analyzed, sending 4-20mA control signal to drain valve, control valve opening and speed, thus realizing liquid level is controlled accurately, obtaining good technique effect.
According to above-mentioned principle, above-mentioned embodiment can also be carried out suitable change and amendment by the present invention.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, should also be as some modifications and changes of the present invention falling in the scope of the claims of the present invention.Although additionally, employ some specific terms in this specification, but these terms are intended merely to convenient explanation, and the present invention does not constitute any restriction.
Claims (8)
1. the drain valve of heater control method of a nuclear power station, it is characterised in that described method includes:
The hydrophobic control valve device of nuclear power station receives the level imbalance signal that simulation calculation module sends, and described level imbalance signal is to produce after heater level measurement compares with setting value；
The hydrophobic control valve device of nuclear power station receives the drain valve of heater of scattered control system transmission and opens command signal；
Arranging the reference value of drain valve valve opening, the hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve of heater and is regulated drain valve valve opening to reference value.
2. method according to claim 1, it is characterised in that described method also includes:
The speed that drain valve valve is opened and/or closed is set, the hydrophobic control valve device of described nuclear power station is opened command signal according to level imbalance signal and drain valve of heater and the adjustment of drain valve valve opening is included to reference value, the hydrophobic control valve device of nuclear power station opens command signal according to level imbalance signal and drain valve of heater, regulates drain valve valve opening to reference value according to the speed that the drain valve valve arranged is opened and/or closed.
3. method according to claim 2, it is characterised in that described the speed that drain valve valve is opened and/or closed is set, including:
By the parameter setting of manual operator in scattered control system configuration, determine the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of nuclear power station opens command signal according to level imbalance signal and drain valve of heater, according to the speed that the drain valve valve arranged is opened and/or closed, the adjustment of drain valve valve opening is included to reference value, the command signal of the speed that the drain valve valve that the hydrophobic control valve device reception manual operator of nuclear power station sends is opened and/or closed, command signal is opened according to level imbalance signal and drain valve of heater, drain valve valve opening is regulated to reference value.
4. the drain valve of heater of a nuclear power station controls device, it is characterised in that described device includes:
First receiver module, for receiving the level imbalance signal that simulation calculation module sends, described level imbalance signal is to produce after heater level measurement compares with setting value；
Second receiver module, the drain valve of heater sent for receiving scattered control system opens command signal；
Control module, for opening command signal according to level imbalance signal and drain valve of heater, drain valve valve is controlled；Described control module includes:
First arranges unit, for arranging the reference value of drain valve valve opening, control module is opened command signal according to level imbalance signal and drain valve of heater and is controlled including to drain valve valve, controls module and opens command signal by drain valve valve opening adjustment to reference value according to level imbalance signal and drain valve of heater.
5. device according to claim 4, it is characterised in that described control module also includes:
Second arranges unit, for arranging the speed that drain valve valve is opened and/or closed, described control module is opened command signal according to level imbalance signal and drain valve of heater and the adjustment of drain valve valve opening is included to reference value, control module and open command signal according to level imbalance signal and drain valve of heater, according to the speed that the drain valve valve arranged is opened and/or closed, drain valve valve opening is regulated to reference value.
6. the drain valve of heater of a nuclear power station controls system, it is characterised in that described system includes:
Simulation calculation module, for the level imbalance signal sent to the hydrophobic control valve device of nuclear power station, described level imbalance signal is to produce after heater level measurement compares with setting value；
Scattered control system, opens command signal for the drain valve of heater sent to the hydrophobic control valve device of nuclear power station；
The hydrophobic control valve device of described nuclear power station, for receiving the level imbalance signal that described simulation calculation module sends, level imbalance signal is to produce after heater level measurement compares with setting value, and the drain valve of heater receiving the transmission of described scattered control system opens command signal；And open command signal according to level imbalance signal and drain valve of heater drain valve valve is controlled；The hydrophobic control valve device of described nuclear power station is additionally operable to:
The reference value of drain valve valve opening is set, the hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve of heater and is controlled including to drain valve valve, and the hydrophobic control valve device of nuclear power station is opened command signal according to level imbalance signal and drain valve of heater and regulated drain valve valve opening to reference value.
7. the drain valve of heater of nuclear power station according to claim 6 controls system, it is characterised in that the hydrophobic control valve device of described nuclear power station is additionally operable to:
The speed that drain valve valve is opened and/or closed is set, the hydrophobic control valve device of described nuclear power station is opened command signal according to level imbalance signal and drain valve of heater and the adjustment of drain valve valve opening is included to reference value, the hydrophobic control valve device of nuclear power station opens command signal according to level imbalance signal and drain valve of heater, regulates drain valve valve opening to reference value according to the speed that the drain valve valve arranged is opened and/or closed.
8. the drain valve of heater of nuclear power station according to claim 7 controls system, it is characterised in that described scattered control system is additionally operable to:
The parameter of manual operator is set, determine the speed that drain valve valve is opened and/or closed, the hydrophobic control valve device of described nuclear power station opens command signal according to level imbalance signal and drain valve of heater, according to the speed that the drain valve valve arranged is opened and/or closed, the adjustment of drain valve valve opening is included to reference value, the command signal of the speed that the drain valve valve that the hydrophobic control valve device reception manual operator of nuclear power station sends is opened and/or closed, open command signal according to level imbalance signal and drain valve of heater, drain valve valve opening is regulated to reference value.
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| CN201310297850.8A CN103337267B (en) | 2013-07-16 | 2013-07-16 | The drain valve of heater control method of nuclear power station, Apparatus and system |
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| CN104807343B (en) * | 2014-09-24 | 2016-12-07 | 北京龙源冷却技术有限公司 | A kind of control system for indirect air cooling system drain valve |
| CN104913296B (en) * | 2015-05-14 | 2017-04-12 | 广东红海湾发电有限公司 | High-low pressure heater emergency drain control method |
| CN106229021B (en) * | 2016-07-27 | 2017-12-12 | 中广核工程有限公司 | Prevent the control system and control method of nuclear power station main steam line superpressure |
| CN110320939A (en) * | 2019-07-24 | 2019-10-11 | 中广核工程有限公司 | A kind of nuclear power station GSS system drain tank tank level control system and method |
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| CN102402230A (en) * | 2011-11-29 | 2012-04-04 | 中广核工程有限公司 | Liquid level measuring and controlling system |
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