CN107437436A - The secondary circuit energy expenditure simulation test device and method of power adjusting can be carried out - Google Patents
The secondary circuit energy expenditure simulation test device and method of power adjusting can be carried out Download PDFInfo
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- CN107437436A CN107437436A CN201710630763.8A CN201710630763A CN107437436A CN 107437436 A CN107437436 A CN 107437436A CN 201710630763 A CN201710630763 A CN 201710630763A CN 107437436 A CN107437436 A CN 107437436A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/001—Mechanical simulators
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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
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- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a kind of secondary circuit energy expenditure simulation test device and method that can carry out power adjusting, including steam generator analogue means, the steam generator analogue means is connected with several condensing units, and the connection between condensing unit and steam generator analogue means can switch over, and each condensing unit is respectively connected with waterworks, waterworks connect with steam generator analogue means, stable-pressure device is provided between condensing unit and waterworks, and stable-pressure device connects with all condensing units and all waterworks simultaneously.This experimental rig and method can realize the quick and precisely regulation of secondary circuit power, and realize the simulation of whole secondary coolant circuit system, cost is low, it ensure that the accuracy of experiment, it is workable, it is easy to implement, complete secondary coolant circuit system test simulation solution is provided for nuclear reactor integral simulation test system.
Description
Technical field
The present invention relates to a kind of modelling technique of nuclear reactor secondary coolant circuit system, and in particular to one kind can carry out work(
The secondary circuit energy expenditure simulation test device and method of rate regulation.
Background technology
In presurized water reactor reactor system, secondary coolant circuit system is by steam generator by caused heat in primary Ioops reactor core
Take away, and pushing turbine acting generates electricity, and 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 auxiliary equipments, system are extremely complex.Integrally simulated in nuclear reactor system
During pilot system, if carrying out simulation construction fully according to the device configuration of nuclear reactor secondary coolant circuit system, cost will be very high
It is high, it is not suitable in general experimental study.For power producer, it needs to have stronger transient operation performance,
Its transient operation performance is grasped designing and researching and developing to need to study, therefore in integral simulation test system, it is desirable to secondary circuit mould
Intend device and possess power quick regulation function.And current integral simulation test device it is more concern different capacity it is horizontal under
Stable state research and primary Ioops accident transient condition, do not possess the fast-changing transient condition Research Ability of power, and particularly two
The power of circuit system quickly changes operating mode.
Application No. " 201510630539X ", entitled " a kind of pilot system for simulating secondary circuit steam turbine consumption vapour "
Chinese patent discloses a kind of pilot system for simulating secondary circuit steam turbine consumption vapour, and it includes the steam generation dress being sequentially communicated
Put, steam reducing valve, fog-spray nozzle, in addition to condenser, fog-spray nozzle are arranged on 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, consumption vapour process of the steam in steam turbine is simulated by the associated working of choke valve and condenser, solves reactor thermal technology
The problem that secondary circuit is simulated in Hydraulic Power System experiment.But it simply simulates steam turbine and does power consumption vapour, does not possess the fast velocity modulation of power
Function is saved, and is not a complete secondary circuit energy expenditure simulation system.
The content of the invention
The technical problems to be solved by the invention are that do not possess in existing reactor system integral simulation test device can
Realize the secondary coolant circuit system of power quick regulation, and fully according to real reaction heap secondary coolant circuit system carry out experimental rig construction into
This is again very high, and power adjusting can be carried out without actual value, therefore it is an object of the invention to provide a kind of
Secondary circuit energy expenditure simulation test device and method, the simulation test device and method can be carried out during experiment it is low into
This bulk testing is simulated, while carries out power quick regulation to simulation test procedure, so as to realize the fast-changing transient state of power
Work condition analogue.
The present invention is achieved through the following technical solutions：
The secondary circuit energy expenditure simulation test device of power adjusting, including steam generator analogue means can be carried out,
The steam generator analogue means is connected with several condensing units, and condensing unit and steam generator analogue means it
Between connection can switch over, and each condensing unit is respectively connected with waterworks, waterworks with steam generator mould
Intend device connection, be provided with stable-pressure device between condensing unit and waterworks, and stable-pressure device simultaneously with all condensations
Device connects with 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, consumption vapour process of the steam in steam turbine is simulated by the associated working of choke valve and condensing unit, solve reactor heat
The simulation problem of secondary circuit steam turbine in the experiment of work Hydraulic Power System.But this technology is only to simulate steam in steam turbine
Vapour process is consumed, its function is single, and it is only partial simulation, and application and the effect obtained are limited, and whole
Simulation process, and the quick regulation of power is not implemented, it is impossible to carry out the Work condition analogue of power fast transient change, and this programme leads to
The regulating valve crossed on joint regulation steam pipework realizes the quick control of steam flow, and then realizes the quick regulation of power, keeps away
The high expense brought using steam turbine simulation is exempted from, has significantly reduced experimental rig construction cost, enhance experimental rig
Operability and performance of control.
Connected between steam generator analogue means and condensing unit by outlet vapor pipeline.Steam generator simulation dress
Put and the device for pressure measurement one being sequentially communicated, temperature measuring equipment one, stream are provided with the steam pipe line between condensing unit
Measuring device one, pneumatic control valve one and electric control valve, and device for pressure measurement one connects with steam generator analogue means
Logical, electric control valve connects with all condensing units.Regulatory function is realized that it must complement each other by two parts, this company
The mode of connecing is to carry out collective effect with condensing unit below, realizes the quick regulation of secondary circuit power, 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 are provided between solidifying device to survey
Device two is measured, and pneumatic on-off valve one connects with electric control valve, temperature measuring equipment two connects with corresponding condensing unit.
In electric control valve downstream, steam pipe line is divided into two branch roads, wherein a branch road connection small-power condensing unit, one in addition
Branch road connects high-power condensing unit, and a pneumatic on-off valve one and pneumatic control valve two are all successively installed on every branch road, and
And it is required for that temperature measuring equipment two and device for pressure measurement two are installed on the pipeline before entering two condensing units.At this
Part, pneumatic on-off valve one is used to select which platform condensing unit used when carrying out experiment, when power is 0~50% rated power
Shi Caiyong small-power condensing units, high-power condensing unit is used when power is 0~100% rated power.Operationally, steam
One shares three deck valve doors on steam pipe line, and wherein electric control valve is as pressure-reducing valve, caused by steam generator analogue means
High steam is changed into low-pressure steam, is discharged into large and small power condensing unit.Other two pneumatic control valves coordinate motorized adjustment
Valve, realizes the quick regulation 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 quick regulation.
According to experimental rig construction cost during 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, it 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 and do together
Work(, realize the consumption that primary Ioops are passed to secondary circuit energy.S type heat exchanger tubes are installed in every condensing unit, by two times
Energy in road is taken away, and realizes the energy expenditure of secondary circuit.Due to electric control valve, pneumatic control valve, condensing unit and change
Heat pipe cost is all relatively low, significantly reduces the construction cost of experimental rig.
Installation cold line is punched in the bottom of condensing unit, temperature measuring equipment and pneumatic is installed on every pipeline
Switch valve two, pneumatic on-off valve two connect with stable-pressure device and corresponding condensing unit simultaneously.Temperature measuring equipment is used to measure
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 are used to determine which platform condensing unit put into.Two cold lines merge into a pipeline in the downstream of pneumatic on-off valve, with
Waterworks are connected, and a voltage-stablizer is installed on this pipeline, and it is for low discharge waterworks and big flow feedwater that it, which is acted on,
Device determines back pressure, prevents that cavitation occurs when waterworks from starting, provides expansion space in addition for secondary circuit energy dissipation system
And make-up water source.The pneumatic regulation being sequentially communicated is provided between steam generator analogue means and all waterworks
Valve three and pneumatic on-off valve three, and pneumatic control valve three respectively with corresponding waterworks connect, pneumatic on-off valve three with steaming
Vapour generator analogue means connects.Pneumatic control valve four is provided between stable-pressure device and all waterworks, and pneumatically
Regulating valve four is communicated with flow measurement device two, flow measurement device two respectively with corresponding pneumatic control valve tee joint.Gas
It is dynamic that the feed water heater being sequentially communicated, the and of pneumatic control valve five are provided between switch valve three and steam generator analogue means
Flow measurement device three, and feed water heater and all pneumatic on-off valve tee joints, flow measurement device three are sent out with steam
Raw device analogue means connection.
This experimental rig has two waterworks branch roads in parallel, and a waterworks are installed respectively on every branch road,
Corresponding low discharge waterworks and big flow waterworks, due to two main differences of branch road be exactly waterworks flow not
Together, remaining is all identical, therefore is described by taking low discharge waterworks branch road as an example.One is also equipped with the branch road
Pneumatic control valve three and pneumatic on-off valve three, a backwater branch road in parallel with low discharge waterworks, one is installed on the branch road
Flow measurement device two and pneumatic control valve four are covered, the effect of backwater branch road is protection low discharge waterworks.Pneumatic on-off valve
It is mainly used in determining whether to put into this waterworks branch road, when power is 0~50% rated power, input low discharge feedwater
Device branch road, when power is 0~100% rated power, put into big flow waterworks branch road.Which can make secondary circuit
Energy expenditure simulation test device has stronger performance of control.
Two waterworks branch roads merge into a water-supply line and are connected with steam generator analogue means entrance, in the pipe
Preheater, temperature measuring equipment, pneumatic control valve five and flow measurement device three are successively installed on line.Preheater, which is used to adjust, to be steamed
Vapour generator entrance feed temperature, its preferred form can be the backheat that electrical heating preheater can also be steam heat form
Device.Waterworks control total Feedwater Flow size by regulating frequency, with the pneumatic control valve on water-supply line, waterworks branch
The valve on pneumatic control valve and backwater branch road on road controls the feedwater flow of steam generator analogue means together.
And the secondary circuit energy expenditure simulation experiment method of power adjusting can be carried out, produced in steam generator analogue means
Raw steam passes through the device for pressure measurement one, temperature measuring equipment one, flow measurement device one, the pneumatic control valve that are sequentially communicated
One and electric control valve, switched using following two modes：
(1) secondary circuit power is simulated when 0~50% nominal power level changes, wherein being connected with high-power condensing unit
Pneumatic on-off valve one and pneumatic on-off valve two, the pneumatic on-off valve three that is connected with 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 connected with low discharge waterworks
Three so that steam passes through connection by returning to steam generator analogue means after small-power condensing unit and low discharge waterworks
Adjust pneumatic control valve one, electric control valve and the quick regulation experimental rig changed power of the first pneumatic control valve two, joint debugging first
Pneumatic control valve three and pneumatic control valve five realize the quick regulation of feedwater；
(2) secondary circuit power is simulated 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 connected with low discharge 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 connected with big flow waterworks
Valve three so that steam is passed through by returning to steam generator analogue means after high-power condensing unit and big flow waterworks
Joint debugging pneumatic control valve one, electric control valve and the quick regulation experimental rig changed power of the second pneumatic control valve two, joint debugging
Two pneumatic control valves three and pneumatic control valve five realize the quick regulation of feedwater.
The characteristics of by above-mentioned experimental rig and test method, constitute a complete secondary circuit energy expenditure simulation examination
Experiment device, it 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, so as to ensure that the accuracy of experiment, meet demand.
The present invention compared with prior art, has the following advantages and advantages：
A. secondary circuit can preferably be realized using two pneumatic control valves and an electric control valve on steam pipe line
The quick regulation of system power, energy consumption function can be realized together with condensing unit, avoid and band is simulated using steam turbine
The high expense come, significantly reduces experimental rig construction cost；
B. small-power condensing unit and high-power condensing unit, low discharge waterworks and big flow waterworks are provided
According to experimental rig simulated power excursion unrestricted choice scheme, the operability and performance of control of experimental rig are enhanced；
C. voltage-stablizer is mounted with the pipeline between large and small power condensing unit and large and small flow waterworks, can be with
Avoid that cavitation phenomenons occurs in waterworks start-up course, protect waterworks；
D. the setting of waterworks backwater branch road, waterworks effectively can be protected in Variable power operating mode, it is ensured that feedwater
The safety of device；
E. the pneumatic control valve on water-supply line and the pneumatic control valve and backwater on large and small flow waterworks branch road
Branch road pneumatic control valve joint debugging, it can effectively adjust the feedwater flow of steam generator analogue means；
F., preheater is set on water-supply line, can effectively adjust feed temperature, it has two kinds of preferred schemes, 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.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- steam generator analogue means, 2- flow measurement devices one, 3- pneumatic control valves one, 4- electric control valves, 5-
First pneumatic on-off valve one, the first pneumatic control valves of 6- two, 7- first pressures measurement apparatus two, the temperature measuring equipments of 8- first
Two, 9- small-power condenser, 10- small-power heat exchanger tubes, the first pneumatic on-off valves of 11- two, the second pneumatic on-off valves of 12- one, 13-
Second pneumatic control valve two, 14- high-power condensers, the high-power heat exchanger tubes of 15-, the second pneumatic on-off valves of 16- two, 17- voltage stabilizings
Device, 18- low discharge feed pumps, the first pneumatic control valves of 19- three, the first pneumatic on-off valves of 20- three, the measurement of 21- first flows
Device two, the first pneumatic control valves of 22- four, 23- big flow feed pumps, the second pneumatic control valves of 24- three, 25- second is pneumatically opened
Valve three is closed, 26- second flows measurement apparatus two, the second pneumatic control valves of 27- four, 28- feed water heaters, 29- is pneumatically adjusted
Valve five, 30- flow measurement devices three, 31- temperature measuring equipments one, 32- device for pressure measurement one.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment：
As shown in figure 1, the present invention design function be in order to realize nuclear reactor secondary coolant circuit system low cost simulation with
And the accurate quick regulation of secondary coolant circuit system changed power, its hardware configuration include steam generator analogue means 1, the steam
Generator analogue means 1 is connected with two condensing units, and the power of two condensing units is different, it is generally preferable to condenser, respectively
Small-power condenser 9 and high-power condenser 14 are named as, the quantity of waterworks is also two, the flow of two waterworks
It is different, it is generally preferable to feed pump, and low discharge feed pump 18 and big flow feed pump 23 are named as according to its flow, condensing
It is provided with stable-pressure device 17 between device and waterworks, 17 preferred voltage-stablizer of stable-pressure device, voltage-stablizer is simultaneously cold with small-power
Condenser 9, high-power condenser 14, low discharge feed pump 18 connect with big flow feed pump 23.
Steam generator analogue means 1 is connected with steam pipe line, and the pressure being sequentially communicated is provided with steam pipe line and is surveyed
Device 1, temperature measuring equipment 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 branch roads, and a branch road is connected with small-power condenser 9, successively installed in the connecting pipeline of this branch road
There are the first pneumatic on-off valve 1 being sequentially communicated, the first pneumatic control valve 26, the temperature of first pressure measurement apparatus 27 and first
Measurement apparatus 28, small-power heat exchanger tube 10 is installed in small-power condenser 9, cold line is installed in its bear,
Temperature measuring equipment and the first pneumatic on-off valve 2 11 are successively installed in cold line；An other branch road and high-power condenser
14 connections, the branch road that the second pneumatic on-off valve one 12, second for being sequentially communicated successively is provided with connecting pipeline is pneumatic
Regulating valve 2 13, device for pressure measurement and temperature measuring equipment, high-power heat exchanger tube 15 is installed in high-power condenser 14,
Cold line is installed in its bear, temperature measuring equipment 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, pressure is provided with voltage-stablizer 17
Measurement apparatus.Cold line is then separated into two branch roads, wherein successively installation low discharge feed pump 18, the pressure measxurement of a branch road
Device, the first pneumatic control valve 3 19 and the first pneumatic on-off valve 3 20, and 18 in parallel backwater branch roads of low discharge feed pump,
First flow measurement apparatus 2 21 and the first pneumatic control valve 4 22 are installed on the branch road；An other branch road is successively installed big
Flow feed pump 23, device for pressure measurement, the second pneumatic control valve 3 24 and the second pneumatic on-off valve 3 25, fed water with big flow
The backwater branch road in parallel of pump 23, installs second flow measurement apparatus 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 survey 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 analogue means 1
Connection, forms complete secondary circuit energy expenditure simulation test device.
The present invention is a kind of secondary circuit energy expenditure simulation test device that can realize power quick regulation, it is possible to achieve
Secondary coolant circuit system steady-state characteristic and the characteristic of power transience change regulation, for the controllability of strengthening system, become according to power
Change scope and be divided to two kinds of embodiments, be 0~50% nominal power level embodiment (embodiment 1) and 0~100% respectively
Nominal power level embodiment (embodiment 2), specifically it will introduce two embodiments below.
Embodiment 1：
In embodiment 1, changed power scope 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, open the first pneumatic on-off valve 1, the first pneumatic on-off valve 2 11, the first pneumatic on-off valve 3 20, input
Small-power condenser 9 and low discharge feed pump 18.In this scenario, caused steam passes through in steam generator analogue means 1
Device for pressure measurement 1, temperature measuring equipment 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 are flowed into small-power condenser 9.When simulation secondary circuit power 0~
When 50% nominal power level changes, regulation electric control valve 4 is to high temperature and high pressure steam caused by steam generator analogue means 1
Decompression regulation is carried out, the joint regulation of pneumatic control valve 26 of auxiliary pneumatic control valve one 3 and first, realizes the quick of steam flow
Regulation, and then the fast-changing simulation of power is realized, it can be surveyed in this process by flow measurement device 1 and pressure
Amount device 1 is monitored measurement, and then adjustment electric control valve 4, the pneumatic control valve 26 of pneumatic control valve one 3 and first
Aperture.Because three regulating valves are the extraordinary regulating valve of the linearity, therefore can exist in advance before development transient test every time
Peak power, minimum power and middle power is chosen in transient power excursion to demarcate regulating valve valve opening.
, can be by automatic control program to electric control valve 4, the gas of pneumatic control valve one 3 and first when formally carrying out transient test
Dynamic regulating valve 26 carries out automatic control and adjustment, realizes the quick regulation of power.Small-power is flowed into by the steam after decompression to condense
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 it is 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 analogue means 1 is flowed into along water-supply line afterwards.Before low discharge feed pump 18 starts, voltage-stablizer 17 needs
There is certain pressure, provide back pressure for low discharge feed pump 18, prevent occurring cavitation phenomenons in start-up course, damage rill
Measure feed pump 18.When carrying out steady state test, always low discharge feed pump 18 is given to current to certain by setpoint frequency regulation
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, regulation, which flows into, steams
The actual feedwater flow of vapour generator analogue means 1, and pass through first flow measurement apparatus 2 21 and flow measurement device 3 30
Measurement obtains, and fixed valve aperture.By adjusting preheater power by the cool water heating from low discharge feed pump 18 to setting
Feed temperature is counted, the preheater can be that electrical heating preheater can also be steam-heated regenerator.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 feedwater with power match is provided for steam generator analogue means 1, ensures the water level of steam generator analogue means 1.
And the accurate control of feed temperature in this process, can be realized by automatically continuously adjusting preheater power.Low discharge is given
The backwater branch road of water pump 18 also has the work of the safety of protection low discharge feed pump 18 in addition to the function with regulation feedwater flow
With.
Embodiment 2：
In embodiment 2, changed power scope is 0~100% nominal power level, first is pneumatically opened in this scenario
Close valve 1, the first pneumatic on-off valve 2 11 and the first pneumatic on-off valve 3 20 to close, do not enable small-power condenser 9 and rill
Feed pump 18 is measured, opens the second pneumatic on-off valve 1, the second pneumatic on-off valve 2 16, the second pneumatic on-off valve 3 25, input
High-power condenser 14 and big flow feed pump 23.In this scenario, caused steam passes through in steam generator analogue means 1
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 changes in 0~100% nominal power level, regulation electric control valve 4 is sent out steam
High temperature and high pressure steam caused by raw device analogue means 1 carries out decompression regulation, aids in the pneumatic control valve of pneumatic control valve one 3 and second
2 13 joint regulations, realize the quick regulation 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, pneumatic
The aperture of the pneumatic control valve 2 13 of regulating valve one 3 and second.Because three regulating valves are the extraordinary regulating valve of the linearity, therefore
Every time carry out transient test before, can in advance in transient power excursion choose peak power, minimum power and in
Between power regulating valve valve opening is demarcated., can be by automatic control program to electricity when formally carrying out transient test
Dynamic regulating valve 4, the pneumatic control valve 2 13 of pneumatic control valve one 3 and second carry out automatic control and adjustment, realize the fast velocity modulation of power
Section.Flowed into high-power condenser 14 and 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 by cold line from high-power condenser 14
Subcooled water is extracted, entering for steam generator analogue means 1 is flowed into along water-supply line after then being heated by feed water preheater 28
Mouthful.Before big flow feed pump 23 starts, voltage-stablizer 17 needs have certain pressure, and the back of the body is provided for big flow feed pump 23
Pressure, prevents occurring cavitation phenomenons in start-up course, damage big flow feed pump 23.When carrying out steady state test, big flow is given
Water pump 23 is adjusted onto certain total Feedwater Flow by setpoint frequency, passes through joint debugging the second pneumatic control valve 3 24, the second gas
Dynamic regulating valve 4 27 and pneumatic control valve 5 29, regulation flow into the actual feedwater flow of steam generator analogue means 1, and pass through
Second flow measurement apparatus 2 26 and the measurement of flow measurement device 3 30 obtain, and fixed valve aperture.By adjusting preheater
For power by the cool water heating from big flow feed pump 23 to design feed temperature, the preheater 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, provided and power match for steam generator analogue means 1
Feedwater, ensure the water level of steam generator analogue means 1.And in this process, can be by automatically continuously adjusting preheating
Device power realizes the accurate control of feed temperature.The backwater branch road of big flow feed pump 23 is except the work(with regulation feedwater flow
Can be outer, also have the function that to protect the safety of big flow feed pump 23.Four regulating valves on middle steam tube line of the present invention can rise
To the effect of power quick regulation, wherein pressure-reducing valve electric control valve 4 plays main regulation, the gas of pneumatic control valve one 3 and first
The dynamic pneumatic control valve 2 13 of regulating valve 26 or second plays auxiliary adjustment.The aperture linearity of regulating valve is all very good, really
Protect can automatic control and adjustment when accuracy.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, there is provided two kinds of different embodiments, be easy to the performance-adjustable of whole 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 road can not only participate in
Feedwater flow regulation, and feed pump can be preferably protected, prevent feed pump overload from burning out.The flow used in the present invention is surveyed
Measure the structure phase of device 1, first flow measurement apparatus 2 21, second flow measurement apparatus 2 26 and flow measurement device 3 30
Together, it is pneumatic according to position different choice different model, remaining pneumatic control valve 1, the first pneumatic control valve 26, second
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 are also identical, according to position different choice 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
The structure for closing the pneumatic on-off valve 3 25 of valve 3 20 and second is also identical, according to position different choice different model, this examination
The feed temperature of the steam generator analogue means 1 of experiment device is controlled regulation by preheater, and preheater can be that electricity adds
Hot preheater can also be steam-heated regenerator.The present invention provides a set of complete for nuclear reactor integral simulation test system
Whole secondary circuit energy expenditure simulation test device, there is the advantages of flow is simple, and cost of implementation is low.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (10)
1. the secondary circuit energy expenditure simulation test device of power adjusting can be carried out, it is characterised in that including steam generator
Analogue means (1), the steam generator analogue means (1) are connected with several condensing units, and condensing unit and steam
Connection between generator analogue means (1) can switch over, and each condensing unit is respectively connected with waterworks, feedwater dress
Put and connected with steam generator analogue means (1), stable-pressure device (17) is provided between condensing unit and waterworks, and
Stable-pressure device (17) while connected with all condensing units and all waterworks.
2. the secondary circuit energy expenditure simulation test device according to claim 1 that power adjusting can be carried out, its feature
It is, the quantity of the condensing unit and waterworks is two, and the power of condensing unit is different, waterworks flow
Adjustable range is different.
3. the secondary circuit energy expenditure simulation test device according to claim 2 that power adjusting can be carried out, its feature
It is, the steam generator analogue means (1) is provided with the device for pressure measurement one being sequentially communicated between condensing unit
(32), temperature measuring equipment one (32), flow measurement device one (2), pneumatic control valve one (3) and electric control valve (4), and press
Force measuring device one (32) connects with steam generator analogue means (1), and electric control valve (4) connects with all condensing units
It is logical.
4. the secondary circuit energy expenditure simulation test device according to claim 3 that power adjusting can be carried out, its feature
Be, be provided between the electric control valve and condensing unit the pneumatic on-off valve one being sequentially communicated, pneumatic control valve two,
Device for pressure measurement two and temperature measuring equipment two, and pneumatic on-off valve one connects with electric control valve, temperature measuring equipment two
Connected with corresponding condensing unit.
5. the secondary circuit energy expenditure simulation test device according to claim 2 that power adjusting can be carried out, its feature
Be, be provided with pneumatic on-off valve two between the condensing unit and stable-pressure device (17), pneumatic on-off valve two simultaneously with it is steady
Pressure device (17) connects with corresponding condensing unit.
6. the secondary circuit energy expenditure simulation test device according to claim 2 that power adjusting can be carried out, its feature
It is, the pneumatic regulation being sequentially communicated is provided between the steam generator analogue means (1) and all waterworks
Valve three and pneumatic on-off valve three, and pneumatic control valve three respectively with corresponding waterworks connect, pneumatic on-off valve three with steaming
Vapour generator analogue means (1) connects.
7. the secondary circuit energy expenditure simulation test device according to claim 6 that power adjusting can be carried out, its feature
It is, pneumatic control valve four, and pneumatic control valve four is provided between the stable-pressure device (17) and all waterworks
Be communicated with flow measurement device two, flow measurement device two respectively with corresponding pneumatic control valve tee joint.
8. the secondary circuit energy expenditure simulation test device according to claim 6 that power adjusting can be carried out, its feature
It is, the feed water heater being sequentially communicated is provided between the pneumatic on-off valve three and steam generator analogue means (1)
(28), pneumatic control valve five (29) and flow measurement device three (30), and feed water heater (28) and all jettrons
Valve tee joint, flow measurement device three (30) connect with steam generator analogue means (1).
9. the secondary circuit energy expenditure simulation examination as claimed in any of claims 1 to 8 that power adjusting can be carried out
Experiment device, it is characterised in that S type heat exchanger tubes are mounted in the condensing unit, waterworks are electrical heating or steam backheat
Form.
10. the secondary circuit energy expenditure simulation experiment method of power adjusting can be carried out, it is characterised in that steam generator is simulated
Caused steam is surveyed by the device for pressure measurement one (32), temperature measuring equipment one (31), flow being sequentially communicated in device (1)
Device one (2), pneumatic control valve one (3) and electric control valve (4) are measured, is switched using following two modes：
(1) secondary circuit power is simulated when 0~50% nominal power level changes, wherein connected with 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 being connected with big flow waterworks
Close valve three (25) to close, open the first pneumatic on-off valve one (5) and the first pneumatic on-off valve being connected with small-power condensing unit
Two (11), the first pneumatic on-off valve three (20) being connected with low discharge waterworks are opened so that steam is condensed by small-power
Device and low discharge waterworks return to steam generator analogue means (1), pass through joint debugging pneumatic control valve one (3), electric adjustable
Save valve (4) and first pneumatic control valve two (6) quick regulation experimental rig changed power, joint debugging the first pneumatic control valve three (19)
The quick regulation of feedwater is realized with pneumatic control valve five (29)；
(2) secondary circuit power is simulated when 0~100% nominal power level changes, wherein connected with small-power condensing unit
The first gas that firstth pneumatic on-off valve one (5) and the first pneumatic on-off valve two (11) are closed, be connected with low discharge waterworks
Dynamic switch valve three (20) is closed, and is opened the second pneumatic on-off valve one (12) and second being connected with high-power condensing unit and is pneumatically opened
The second pneumatic on-off valve three (25) for close valve two (13), being connected with big flow waterworks is opened so that steam passes through high-power
Steam generator analogue means (1) is returned to after condensing unit and big flow waterworks, by joint debugging pneumatic control valve one (3),
Electric control valve (4) and second pneumatic control valve two (13) quick regulation experimental rig changed power, joint debugging second are pneumatically adjusted
Valve three (24) and pneumatic control valve five (29) realize the quick regulation of feedwater.
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| CN201710630763.8A CN107437436B (en) | 2017-07-28 | 2017-07-28 | It is able to carry out the secondary circuit energy consumption simulation test device and method of power regulation |
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| CN113782236A (en) * | 2021-09-09 | 2021-12-10 | 哈尔滨工程大学 | Test device for researching rapid start of nuclear reactor |
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