CN107437436B - It is able to carry out the secondary circuit energy consumption simulation test device and method of power regulation - Google Patents
It is able to carry out the secondary circuit energy consumption simulation test device and method of power regulation Download PDFInfo
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- CN107437436B CN107437436B CN201710630763.8A CN201710630763A CN107437436B CN 107437436 B CN107437436 B CN 107437436B CN 201710630763 A CN201710630763 A CN 201710630763A CN 107437436 B CN107437436 B CN 107437436B
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- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of secondary circuit energy consumption simulation test device for being able to carry out power regulation and methods, including steam generator simulator, the steam generator simulator is connected with several condensing units, and the connection between condensing unit and steam generator simulator is able to carry out switching, and each condensing unit is respectively connected with waterworks, waterworks are connected to steam generator simulator, stable-pressure device is provided between condensing unit and waterworks, and stable-pressure device is connected to all condensing units and all waterworks simultaneously.This experimental rig and method can be realized the quick and precisely adjusting of secondary circuit power, and realize the simulation of entire secondary coolant circuit system, it is at low cost, it ensure that the accuracy of test, strong operability, it is easy to implement, provides complete secondary coolant circuit system test simulation solution for nuclear reactor integral simulation test system.
Description
Technical field
The present invention relates to a kind of modelling techniques of nuclear reactor secondary coolant circuit system, and in particular to one kind is able to carry out function
The secondary circuit energy consumption simulation test device and method that rate is adjusted.
Background technique
In presurized water reactor reactor system, secondary coolant circuit system passes through the heat that steam generator will generate in primary Ioops reactor core
It takes away, and pushing turbine acting power generation, realizes the conversion of energy.In nuclear reactor secondary coolant circuit system, it is related to steam hair
Raw device, steam turbine, condenser, feed pump and other ancillary equipments, system are extremely complex.It is integrally simulated in nuclear reactor system
When pilot system, if the device configuration fully according to nuclear reactor secondary coolant circuit system carries out simulation construction, cost will be very high
It is high, it is not suitable for general experimental study.For power producer, stronger transient operation performance is needed to have,
Its transient operation performance is grasped designing and researching and developing to need to study, therefore in integral simulation test system, it is desirable that secondary circuit mould
Quasi- device has the quick regulatory function of power.And under the more concern different capacity level of current integral simulation test device
Stable state research and primary Ioops accident transient condition, do not have the fast-changing transient condition Research Ability of power, and especially two
The power of circuit system quickly changes operating condition.
Application No. is " 201510630539X ", it is entitled " it is a kind of simulation secondary circuit steam turbine consumption vapour pilot system "
Chinese patent discloses a kind of pilot system of simulation secondary circuit steam turbine consumption vapour comprising the steam generation dress being sequentially communicated
Set, steam reducing valve, fog-spray nozzle, further include condenser, fog-spray nozzle is arranged inside condenser, steam reducing valve and fog-spray nozzle it
Between connecting pipe on be provided with device for pressure measurement.The system can simulate the consumption vapour mistake of steam turbine in a manner of low cost
Journey simulates consumption vapour process of the steam in steam turbine by the associated working of throttle valve and condenser, solves reactor thermal technology
The problem of secondary circuit simulation in Hydraulic Power System test.But it only simulates steam turbine and does power consumption vapour, does not have the fast velocity modulation of power
Function is saved, and is not a complete secondary circuit energy consumption simulation system.
Summary of the invention
It can the technical problem to be solved by the present invention is to not have in existing reactor system integral simulation test device
Realize the secondary coolant circuit system that quickly adjusts of power, and fully according to real reaction heap secondary coolant circuit system carry out experimental rig construction at
This is again very high, does not have practical utility value, therefore the purpose of the present invention is to provide a kind of power regulations that is able to carry out
Secondary circuit energy consumption simulation test device and method, the simulation test device and method can carry out during the test it is low at
This bulk testing simulation, while power is carried out to simulation test procedure and is quickly adjusted, to realize the fast-changing transient state of power
Work condition analogue.
The present invention is achieved through the following technical solutions:
It is able to carry out the secondary circuit energy consumption simulation test device of power regulation, including steam generator simulator,
The steam generator simulator is connected with several condensing units, and condensing unit and steam generator simulator it
Between connection be able to carry out switching, and each condensing unit is respectively connected with waterworks, waterworks with steam generator mould
Quasi- device connection, is provided with stable-pressure device between condensing unit and waterworks, and stable-pressure device simultaneously with all condensations
Device is connected to all waterworks.The consumption vapour mistake of steam turbine can be simulated in a manner of low cost in the prior art at present
Journey simulates consumption vapour process of the steam in steam turbine by the associated working of throttle valve and condensing unit, solves reactor heat
The simulation problem of secondary circuit steam turbine in the test of work Hydraulic Power System.But this technology is only to simulate steam in steam turbine
Vapour process is consumed, is had a single function, and it is only partial simulation, the effect of application range and acquirement is limited, and entire
Simulation process, and the quick adjusting of power is not implemented, the Work condition analogue of power fast transient variation cannot be carried out, and this programme is logical
It crosses joint and adjusts the quick control that the regulating valve on steam pipework realizes steam flow, and then the quick adjusting of realization power, keep away
Exempt to simulate the high expense of bring using steam turbine, has significantly reduced experimental rig construction cost, enhance experimental rig
Operability and performance of control.
It is connected between steam generator simulator and condensing unit by outlet vapor pipeline.Steam generator simulation dress
It sets and is provided with the device for pressure measurement one being sequentially communicated, temperature measuring device one, stream on the steam pipe line between condensing unit
Measuring device one, pneumatic control valve one and electric control valve, and device for pressure measurement one and steam generator simulator connect
Logical, electric control valve is connected to all condensing units.Regulatory function is realized by two parts, must be complemented each other, this company
The mode of connecing be with subsequent condensing unit carry out collective effect, realize secondary circuit power quick adjusting, electric control valve with it is cold
The pneumatic on-off valve one being sequentially communicated, pneumatic control valve two, device for pressure measurement two and temperature is provided between solidifying device to survey
Device two is measured, and pneumatic on-off valve one is connected to electric control valve, temperature measuring device two is connected to corresponding condensing unit.
In electric control valve downstream, steam pipe line is divided into two branches, wherein a branch connection small-power condensing unit, in addition one
Branch connects high-power condensing unit, and a pneumatic on-off valve one and pneumatic control valve two are all successively installed in every branch road, and
And installation temperature measuring device two and device for pressure measurement two are required on the pipeline before entering two condensing units.At this
Which platform condensing unit part uses when pneumatic on-off valve one is for selecting to carry out test, when power is 0~50% rated power
Shi Caiyong small-power condensing unit uses high-power condensing unit when power is 0~100% rated power.At runtime, it steams
One shares three deck valve doors on steam pipe line, and wherein electric control valve is as pressure reducing valve, by what is generated in steam generator simulator
High steam becomes low-pressure steam, is discharged into large and small power condensing unit.Other two pneumatic control valves cooperate motorized adjustment
Valve realizes the quick adjusting of secondary circuit power, needs to reach the steady of secondary circuit by the way of three valve joint debuggings in this process
State power control and transient changing are quickly adjusted.
According to experimental rig construction cost when simulation, the quantity by condensing unit and waterworks is two, and cold
The flow adjustment range between power, waterworks between solidifying device is all different.Using the condensation of two different capacities
The waterworks of device and two different flow adjustable ranges can realize that power is accurately quick under the cost of minimum construction
Regulatory function.The two condensing units can simulate steam turbine with upstream electric control valve and pneumatic control valve respectively together and do
Function realizes the consumption that primary Ioops are passed to secondary circuit energy.S type heat exchanger tube is installed in every condensing unit, by two times
Energy in road is taken away, and realizes the energy consumption of secondary circuit.Due to electric control valve, pneumatic control valve, condensing unit and change
Heat pipe cost is all lower, significantly reduces the construction cost of experimental rig.
Installation cold line is punched in the bottom of condensing unit, temperature measuring device and pneumatic is installed on every pipeline
Switch valve two, pneumatic on-off valve two are connected to stable-pressure device and corresponding condensing unit simultaneously.Temperature measuring device is for measuring
The cold water temperature come out from condensing unit, in order to control the cooling water flow in condensing unit in heat exchanger tube.Pneumatic on-off valve
Two for determining which platform condensing unit put into.Two cold lines merge into a pipeline in the downstream of pneumatic on-off valve, with
A voltage-stablizer is installed in waterworks connection on this pipeline, and effect is for small flow waterworks and big flow water supply
Device determines back pressure, and cavitation occurs when preventing waterworks from starting, and furthermore provides expansion space for secondary circuit energy dissipation system
And make-up water source.The pneumatic adjusting being sequentially communicated is provided between steam generator simulator and all waterworks
Valve three and pneumatic on-off valve three, and pneumatic control valve three respectively with corresponding waterworks be connected to, pneumatic on-off valve three with steaming
The connection of vapour generator simulator.Pneumatic control valve four is provided between stable-pressure device and all waterworks, and pneumatic
Regulating valve four is communicated with flow measurement device two, flow measurement device two respectively with corresponding pneumatic control valve tee joint.Gas
The feed water heater being sequentially communicated, five and of pneumatic control valve are provided between dynamic switch valve three and steam generator simulator
Flow measurement device three, and feed water heater and all pneumatic on-off valve tee joints, flow measurement device three and steam are sent out
Raw device simulator connection.
This experimental rig has two waterworks branches in parallel, and a waterworks are installed in every branch road respectively,
Corresponding small flow waterworks and big flow waterworks, due to the main difference of two branches be exactly waterworks flow not
Together, remaining is all identical, therefore is described by taking small flow waterworks branch as an example.One is also equipped on the branch road
Pneumatic control valve three and pneumatic on-off valve three, a return water branch in parallel with small flow waterworks, install one on the branch road
Flow measurement device two and pneumatic control valve four are covered, the effect of return water branch is the small flow waterworks of protection.Pneumatic on-off valve
It is mainly used for determining whether to put into this waterworks branch, when power is 0~50% rated power, puts into small flow water supply
Device branch puts into big flow waterworks branch when power is 0~100% rated power.Which can make secondary circuit
Energy consumption simulation test device has stronger performance of control.
Two waterworks branches merge into a water-supply line and connect with steam generator simulator entrance, in the pipe
Preheater, temperature measuring device, pneumatic control valve five and flow measurement device three are successively installed on line.Preheater is steamed for adjusting
Vapour generator entrance feed temperature, preferred form can may be the backheat of steam heat form for electrical heating preheater
Device.Waterworks control total Feedwater Flow size by adjusting frequency, with the pneumatic control valve on water-supply line, waterworks branch
The pneumatic control valve of road and the valve of return water branch road control the feedwater flow of steam generator simulator together.
And it is able to carry out the secondary circuit energy consumption simulation experiment method of power regulation, it is produced in steam generator simulator
Raw steam passes through device for pressure measurement one, temperature measuring device one, the flow measurement device one, pneumatic control valve being sequentially communicated
One and electric control valve, switched using following two mode:
(1) simulation secondary circuit power is when 0~50% nominal power level changes, wherein being connected to high-power condensing unit
Pneumatic on-off valve one and pneumatic on-off valve two, the pneumatic on-off valve three that is connected to big flow waterworks close, open with it is small
The pneumatic on-off valve one and pneumatic on-off valve two of the connection of power condensing unit, the pneumatic on-off valve being connected to small flow waterworks
Three, so that steam passes through connection by returning to steam generator simulator after small-power condensing unit and small flow waterworks
Pneumatic control valve one, electric control valve and the first pneumatic control valve two is adjusted quickly to adjust experimental rig changed power, joint debugging first
Pneumatic control valve three and pneumatic control valve five realize the quick adjusting of water supply；
(2) simulation secondary circuit power is when 0~100% nominal power level changes, wherein connecting with small-power condensing unit
Logical pneumatic on-off valve one and pneumatic on-off valve two, the pneumatic on-off valve three being connected to small flow waterworks are closed, open with
The pneumatic on-off valve one and pneumatic on-off valve two of high-power condensing unit connection, the jettron being connected to big flow waterworks
Valve three, so that steam is passed through by returning to steam generator simulator after high-power condensing unit and big flow waterworks
Joint debugging pneumatic control valve one, electric control valve and the second pneumatic control valve two quickly adjust experimental rig changed power, joint debugging the
Two pneumatic control valves three and pneumatic control valve five realize the quick adjusting of water supply.
The characteristics of by above-mentioned experimental rig and test method, constitutes a complete secondary circuit energy consumption simulation examination
Experiment device can be used for the simulation of secondary coolant circuit system in nuclear reactor integral simulation test system, can preferably simulate secondary circuit
Steady-state characteristic and transient power change control characteristic, to ensure that the accuracy of test, meet demand.
Compared with prior art, the present invention having the following advantages and benefits:
A. secondary circuit can preferably be realized using two pneumatic control valves and an electric control valve on steam pipe line
The quick adjusting of system power, may be implemented energy consumption function together with condensing unit, avoids and simulates band using steam turbine
The high expense come, significantly reduces experimental rig construction cost；
B. small-power condensing unit and high-power condensing unit, small flow waterworks and big flow waterworks are provided
According to experimental rig simulated power variation range unrestricted choice scheme, the operability and performance of control of experimental rig are enhanced；
C. voltage-stablizer is mounted on the pipeline between large and small power condensing unit and large and small flow waterworks, it can be with
It avoids that cavitation phenomenons occur in waterworks start-up course, protects waterworks；
D. the setting of waterworks return water branch, can in Variable power operating condition effective protection waterworks, it is ensured that water supply
The safety of device；
E. the pneumatic control valve and return water of the pneumatic control valve on water-supply line and large and small flow waterworks branch road
Branch pneumatic control valve joint debugging can effectively adjust the feedwater flow of steam generator simulator；
F., preheater is set on water-supply line, can effectively adjust feed temperature, there are two types of preferred embodiments for tool, respectively
It is the regenerator of electrical heating preheater and steam heat form；
G. the present invention is low to the simulated cost of nuclear reactor secondary coolant circuit system, is easy to implement.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention.
Label and corresponding parts title in attached drawing:
1- steam generator simulator, 2- flow measurement device one, 3- pneumatic control valve one, 4- electric control valve, 5-
First pneumatic on-off valve one, the first pneumatic control valve of 6- two, 7- first pressure measuring device two, the first temperature measuring device of 8-
Two, 9- small-power condenser, 10- small-power heat exchanger tube, the first pneumatic on-off valve of 11- two, the second pneumatic on-off valve of 12- one, 13-
Second pneumatic control valve two, 14- high-power condenser, the high-power heat exchanger tube of 15-, the second pneumatic on-off valve of 16- two, 17- pressure stabilizing
Device, the small flow feed pump of 18-, the first pneumatic control valve of 19- three, the first pneumatic on-off valve of 20- three, the measurement of 21- first flow
Device two, the first pneumatic control valve of 22- four, 23- big flow feed pump, the second pneumatic control valve of 24- three, 25- second is pneumatically opened
Valve three is closed, 26- second flow measuring device two, the second pneumatic control valve of 27- four, 28- feed water heater, 29- is pneumatically adjusted
Valve five, 30- flow measurement device three, 31- temperature measuring device one, 32- device for pressure measurement one.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment:
As shown in Figure 1, design function of the invention be in order to realize nuclear reactor secondary coolant circuit system low cost simulation with
And the accurate quick adjusting of secondary coolant circuit system changed power, hardware configuration include steam generator simulator 1, the steam
For the connection of generator simulator 1 there are two condensing unit, the power of two condensing units is different, it is generally preferable to condenser, respectively
It is named as small-power condenser 9 and high-power condenser 14, the quantity of waterworks is also two, the flow of two waterworks
It is different, it is generally preferable to feed pump, and small flow feed pump 18 and big flow feed pump 23 are named as according to its flow, it is condensing
It is provided with stable-pressure device 17 between device and waterworks, the preferred voltage-stablizer of stable-pressure device 17, voltage-stablizer is cold with small-power simultaneously
Condenser 9, high-power condenser 14, small flow feed pump 18 are connected to big flow feed pump 23.
Steam generator simulator 1 is connect with steam pipe line, and the pressure being sequentially communicated is equipped on steam pipe line and is surveyed
Device 1, temperature measuring device 1, flow measurement device 1, pneumatic control valve 1 and electric control valve 4 are measured, is then steamed
Steam pipe line is divided into two branches, and a branch connect with small-power condenser 9, successively installs in the connecting pipeline of this branch
There are the first pneumatic on-off valve 1 being sequentially communicated, the first pneumatic control valve 26, first pressure measuring device 27 and the first temperature
Measuring device 28 is equipped with small-power heat exchanger tube 10 in small-power condenser 9, installs cold line in its bear,
Temperature measuring device and the first pneumatic on-off valve 2 11 are successively installed in cold line；An other branch and high-power condenser
14 connections, the branch that the second pneumatic on-off valve one 12, second for being sequentially communicated successively is equipped in connecting pipeline is pneumatic
Regulating valve 2 13, device for pressure measurement and temperature measuring device are equipped with high-power heat exchanger tube 15 in high-power condenser 14,
Cold line is installed in its bear, temperature measuring device and the second pneumatic on-off valve two are successively installed in cold line
16, subsequent two cold lines merge into a cold line, are subsequently mounted voltage-stablizer 17, are equipped with pressure on voltage-stablizer 17
Measuring device.Cold line is then separated into two branches, wherein a branch successively installs small flow feed pump 18, pressure measurement
Device, the first pneumatic control valve 3 19 and the first pneumatic on-off valve 3 20, a return water branch in parallel with small flow feed pump 18,
First flow measuring device 2 21 and the first pneumatic control valve 4 22 are installed on the branch road；An other branch is successively installed greatly
Flow feed pump 23, device for pressure measurement, the second pneumatic control valve 3 24 and the second pneumatic on-off valve 3 25, with big flow water supply
The return water branch in parallel of pump 23, installs second flow measuring device 2 26 and the second pneumatic control valve 4 27 on the branch road.
Subsequent two feed pump pipelines merge into a water-supply line, and feed water preheater 28, temperature measurement are successively installed on the pipeline
Component, pneumatic control valve 5 29 and flow measurement device 3 30, the entrance of last water-supply line and steam generator simulator 1
Connection, forms complete secondary circuit energy consumption simulation test device.
The present invention is a kind of secondary circuit energy consumption simulation test device that can be realized power and quickly adjust, and be may be implemented
The characteristic that secondary coolant circuit system steady-state characteristic and power transience variation are adjusted becomes to enhance the controllability of system according to power
Change range and be divided to two kinds of embodiments, is 0~50% nominal power level embodiment (embodiment 1) and 0~100% respectively
Nominal power level embodiment (embodiment 2) will specifically introduce two embodiments below.
Embodiment 1:
In embodiment 1, changed power range is 0~50% nominal power level, second is pneumatically opened in this scenario
Close valve 1, the second pneumatic on-off valve 2 16 and the second pneumatic on-off valve 3 25 are closed, do not enable high-power condenser 14 and big
Flow feed pump 23 opens the first pneumatic on-off valve 1, the first pneumatic on-off valve 2 11, the first pneumatic on-off valve 3 20, investment
Small-power condenser 9 and small flow feed pump 18.In this scenario, the steam generated in steam generator simulator 1 passes through
Device for pressure measurement 1, temperature measuring device 1, flow measurement device 1, pneumatic control valve 1, electric control valve 4,
First pneumatic on-off valve 1 and the first pneumatic control valve 26 flow into small-power condenser 9.When simulation secondary circuit power 0~
When 50% nominal power level changes, the high temperature and high pressure steam that electric control valve 4 generates steam generator simulator 1 is adjusted
Decompression adjusting is carried out, assists pneumatic control valve 1 and the first pneumatic control valve 26 joint to adjust, realizes the quick of steam flow
It adjusts, and then realizes the fast-changing simulation of power, can be surveyed in this process by flow measurement device 1 and pressure
Amount device 1 is monitored measurement, and then adjusts electric control valve 4, pneumatic control valve 1 and the first pneumatic control valve 26
Aperture.Since three regulating valves are that the extraordinary regulating valve of the linearity can exist in advance before carrying out transient test every time
Peak power, minimum power and middle power is chosen in transient power variation range to demarcate regulating valve valve opening.
It, can be by automatic control program to electric control valve 4, pneumatic control valve 1 and the first gas when formally carrying out transient test
Dynamic regulating valve 26 carries out automatically controlling adjusting, realizes the quick adjusting of power.Small-power condensation is flowed by the steam after decompression
It is condensed in device 9, the energy in steam is taken away by small-power heat exchanger tube 10, steam is condensed into subcooled water.Then small
Flow feed pump 18 extracts subcooled water by cold line from small-power condenser 9, is then heated by feed water preheater 28
The entrance of steam generator simulator 1 is flowed into along water-supply line afterwards.Before small flow feed pump 18 starts, voltage-stablizer 17 is needed
There is certain pressure, provide back pressure for small flow feed pump 18, prevent occurring cavitation phenomenons in start-up course, damage small stream
Measure feed pump 18.When carrying out steady state test, small flow feed pump 18 is adjusted to certain by setpoint frequency always to water flow
In amount, by joint debugging the first pneumatic control valve 3 19, the first pneumatic control valve 4 22 and pneumatic control valve 5 29, adjusts to flow into and steam
The practical feedwater flow of vapour generator simulator 1, and pass through first flow measuring device 2 21 and flow measurement device 3 30
Measurement obtains, and fixed valve aperture.By adjusting preheater power, the cold water of flow feed pump 18 is heated to set from childhood in the future
Feed temperature is counted, which can may be steam-heated regenerator for electrical heating preheater.Carrying out transient test
When, automatic control program joint debugging the first pneumatic control valve 3 19, the first pneumatic control valve 4 22 and pneumatic control valve can be passed through
5 29, the water supply with power match is provided for steam generator simulator 1, guarantees the water level of steam generator simulator 1.
And the accurate control of feed temperature in this process, can be realized by automatically continuously adjusting preheater power.Small flow is given
The return water branch of water pump 18 also has the work for protecting small 18 safety of flow feed pump other than having the function of adjusting feedwater flow
With.
Embodiment 2:
In embodiment 2, changed power range is 0~100% nominal power level, first is pneumatically opened in this scenario
It closes valve 1, the first pneumatic on-off valve 2 11 and the first pneumatic on-off valve 3 20 to close, does not enable small-power condenser 9 and small stream
Feed pump 18 is measured, the second pneumatic on-off valve 1, the second pneumatic on-off valve 2 16, the second pneumatic on-off valve 3 25, investment are opened
High-power condenser 14 and big flow feed pump 23.In this scenario, the steam generated in steam generator simulator 1 passes through
Pneumatic control valve 1, electric control valve 4, the second pneumatic on-off valve 1 and the second pneumatic control valve 2 13 flow into high-power cold
In condenser 14.When simulation secondary circuit power is when 0~100% nominal power level changes, adjusting electric control valve 4 sends out steam
The high temperature and high pressure steam that raw device simulator 1 generates carries out decompression adjusting, assists pneumatic control valve 1 and the second pneumatic control valve
2 13 joints are adjusted, and are realized the quick adjusting of steam flow, and then realize the fast-changing simulation of power, in this process may be used
To be monitored measurement by flow measurement device 1 and device for pressure measurement one, and then adjust electric control valve 4, pneumatically
The aperture of regulating valve 1 and the second pneumatic control valve 2 13.Since three regulating valves are the extraordinary regulating valve of the linearity,
Every time carry out transient test before, can in advance in transient power variation range choose peak power, minimum power and in
Between power regulating valve valve opening is demarcated.It, can be by automatic control program to electricity when formally carrying out transient test
Dynamic regulating valve 4, pneumatic control valve 1 and the second pneumatic control valve 2 13 carry out automatically controlling adjusting, realize the fast velocity modulation of power
Section.It is flowed into high-power condenser 14 and is condensed by the steam after decompression, by high-power heat exchanger tube 15 in steam
Energy is taken away, and steam is condensed into subcooled water.Then big flow feed pump 23 is by cold line from high-power condenser 14
Subcooled water is extracted, flows into entering for steam generator simulator 1 along water-supply line after then heating by feed water preheater 28
Mouthful.Before big flow feed pump 23 starts, the pressure that voltage-stablizer 17 needs to have certain provides back for big flow feed pump 23
Pressure, prevents occurring cavitation phenomenons in start-up course, damages big flow feed pump 23.When carrying out steady state test, big flow is given
Water pump 23 is adjusted by setpoint frequency onto certain total Feedwater Flow, and joint debugging the second pneumatic control valve 3 24, the second gas are passed through
Dynamic regulating valve 4 27 and pneumatic control valve 5 29, adjust the practical feedwater flow for flowing into steam generator simulator 1, and pass through
Second flow measuring device 2 26 and the measurement of flow measurement device 3 30 obtain, and fixed valve aperture.By adjusting preheater
Cold water from big flow feed pump 23 is heated to design feed temperature by power, which can be electrical heating preheater
It can be steam-heated regenerator.When carrying out transient test, can pneumatically be adjusted by automatic control program joint debugging second
Valve 3 24, the second pneumatic control valve 4 27 and pneumatic control valve 5 29 provide and power match for steam generator simulator 1
Water supply, guarantee steam generator simulator 1 water level.And it in this process, can be by automatically continuously adjusting preheating
The accurate control of device power realization feed temperature.The return water branch of big flow feed pump 23 is in addition to having the function for adjusting feedwater flow
Can be outer, also have the function of protecting 23 safety of big flow feed pump.Four regulating valves on middle steam tube line of the present invention can rise
The effect quickly adjusted to power, wherein pressure reducing valve electric control valve 4 plays main regulation, pneumatic control valve 1 and the first gas
Dynamic regulating valve 26 or the second pneumatic control valve 2 13 play auxiliary adjustment.The aperture linearity of regulating valve is all very good, really
Protect accuracy when can be automatically controled adjusting.This four valves realize secondary circuit energy together with large and small power condenser
Consumption, avoids the simulation to steam turbine, reduces the cost of experimental rig.In addition, the present invention according to power regulating range not
Together, two different embodiments are provided, convenient for the performance-adjustable of entire secondary circuit energy dissipation system.Voltage-stablizer 17
Setting avoids large and small flow feed pump and cavitation occurs, and damages feed pump.Large and small flow feed pump branch can not only participate in
Feedwater flow regulation, and feed pump can be preferably protected, prevent feed pump overload from burning out.Flow used in the present invention is surveyed
Measure device 1, first flow measuring device 2 21, the structure phase of second flow measuring device 2 26 and flow measurement device 3 30
Together, different model is selected according to position difference, remaining pneumatic control valve 1, the first pneumatic control valve 26, second are pneumatic
Regulating valve 2 13, the first pneumatic control valve 3 19, the first pneumatic control valve 4 22, the second pneumatic control valve 3 24, second are pneumatic
Regulating valve 4 27 and the structure of pneumatic control valve 5 29 be also it is identical, according to position difference select different model, the first gas
Dynamic switch valve 1, the first pneumatic on-off valve 2 11, the second pneumatic on-off valve 12, the second pneumatic on-off valve 2 16, first are pneumatically opened
Close valve 3 20 and the second pneumatic on-off valve 3 25 structure be also it is identical, different model, this examination are selected according to position difference
The feed temperature of the steam generator simulator 1 of experiment device is controlled to adjust by preheater, and preheater can be electricity and add
Hot preheater is also possible to steam-heated regenerator.The present invention provides a set of complete for nuclear reactor integral simulation test system
Whole secondary circuit energy consumption simulation test device has process simple, the low advantage of cost of implementation.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (1)
1. being able to carry out the secondary circuit energy consumption simulation experiment method of power regulation, which is characterized in that steam generator simulation
The steam generated in device (1) passes through the device for pressure measurement one (32), temperature measuring device one (31), flow being sequentially communicated and surveys
Device one (2), pneumatic control valve one (3) and electric control valve (4) are measured, is switched using following two mode:
(1) simulation secondary circuit power is when 0~50% nominal power level changes, wherein be connected to high-power condensing unit the
Two pneumatic on-off valves one (12) and the second pneumatic on-off valve two (16) close, second pneumatically opening of connecting with big flow waterworks
It closes valve three (25) to close, opens the first pneumatic on-off valve one (5) and the first pneumatic on-off valve connecting with small-power condensing unit
Two (11), the first pneumatic on-off valve three (20) connecting with small flow waterworks are opened, so that steam is condensed by small-power
Device and small flow waterworks return to steam generator simulator (1), pass through joint debugging pneumatic control valve one (3), electric adjustable
It saves valve (4) and the first pneumatic control valve two (6) quickly adjusts experimental rig changed power, joint debugging the first pneumatic control valve three (19)
The quick adjusting of water supply is realized with pneumatic control valve five (29)；
(2) secondary circuit power is simulated when 0~100% nominal power level changes, wherein be connected to small-power condensing unit
First pneumatic on-off valve one (5) and the first pneumatic on-off valve two (11) close, connect with small flow waterworks first pneumatically
Switch valve three (20) is closed, and the second pneumatic on-off valve one (12) and the second jettron connecting with high-power condensing unit are opened
Valve two (13), the second pneumatic on-off valve three (25) connecting with big flow waterworks are opened, so that steam is by high-power cold
Steam generator simulator (1) is returned to after solidifying device and big flow waterworks, passes through joint debugging pneumatic control valve one (3), electricity
Dynamic regulating valve (4) and the second pneumatic control valve two (13) quickly adjust experimental rig changed power, the second pneumatic control valve of joint debugging
Three (24) and pneumatic control valve five (29) realize the quick adjusting of water supply.
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| CN110838376B (en) * | 2019-11-21 | 2021-08-10 | 中国核动力研究设计院 | Experimental device for simulating natural circulation reactor two-loop system |
| CN111540492B (en) * | 2020-05-15 | 2022-02-11 | 中国核动力研究设计院 | Comprehensive flowing water corrosion test device and method for one-loop and two-loop linkage operation |
| CN113782236B (en) * | 2021-09-09 | 2024-01-16 | 哈尔滨工程大学 | Test device for researching quick start of nuclear reactor |
| CN114333545A (en) * | 2021-12-08 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Combined vertical natural circulation steam generator's experimental analog body |
| CN114242284B (en) * | 2021-12-17 | 2024-05-28 | 中国核动力研究设计院 | Nuclear reactor thermal hydraulic test system and regulation and control method |
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| CN103117101A (en) * | 2013-01-19 | 2013-05-22 | 哈尔滨工程大学 | Start-stop auxiliary device used in integral reactor and cold starting method of integral reactor |
| CN105321586A (en) * | 2015-09-29 | 2016-02-10 | 中国核动力研究设计院 | Testing system for simulating steam consumption of secondary circuit steam turbine |
| CN105957568A (en) * | 2016-07-07 | 2016-09-21 | 中国核动力研究设计院 | System and method for simulating nuclear heat releasing by electric heating |
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| JP2675622B2 (en) * | 1989-05-24 | 1997-11-12 | 株式会社東芝 | Water pressure test method for reactor pressure vessel and attached piping |
| CN103117101A (en) * | 2013-01-19 | 2013-05-22 | 哈尔滨工程大学 | Start-stop auxiliary device used in integral reactor and cold starting method of integral reactor |
| CN105321586A (en) * | 2015-09-29 | 2016-02-10 | 中国核动力研究设计院 | Testing system for simulating steam consumption of secondary circuit steam turbine |
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