CN107293340A - A kind of small-sized steam generator thermal hydraulic analysis pilot system - Google Patents
A kind of small-sized steam generator thermal hydraulic analysis pilot system Download PDFInfo
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- CN107293340A CN107293340A CN201710510410.4A CN201710510410A CN107293340A CN 107293340 A CN107293340 A CN 107293340A CN 201710510410 A CN201710510410 A CN 201710510410A CN 107293340 A CN107293340 A CN 107293340A
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- 239000008236 heating water Substances 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- 238000012546 transfer Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 2
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/006—Details of nuclear power plant primary side of steam generators
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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
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
Small-sized steam generator thermal hydraulic analysis pilot system disclosed by the invention, belongs to nuclear power station steam generator equipment technical field.Including：Primary Ioops unit, secondary circuit unit, steam generator and data acquisition unit；Primary Ioops unit is connected by pipeline with steam generator respectively with secondary circuit unit, and the fluid of primary Ioops unit can be used in heating the fluid of secondary circuit unit.Data acquisition unit is used to gather primary Ioops unit and fluid temperature (F.T.), pressure and the flow primary Ioops unit of secondary circuit unit inflow steam generator heat cooling water using regenerator, heating water tank, instead of baroque nuclear reactor.Primary Ioops unit and secondary circuit unit introduce extraction cycle using regenerator, save energy, improve the energy utilization rate of system.
Description
Technical field
The invention belongs to nuclear power station steam generator equipment technical field, and in particular to a kind of small-sized steam generator thermal technology
Hydraulic analysis pilot system.
Background technology
Nuclear power steam generator is the important operational outfit of double loop nuclear power station, is connection one, the hinge of secondary circuit, core
Can power station safe and efficient put into operation, depends greatly on the working condition of steam generator.In nuclear island,
The energy transmission of nuclear fission enters steam generator to primary coolant, and by the effect of main circulation pump, in steam generation
Steam is produced after carrying out heat exchange with secondary circuit feedwater in device, after steam-water separation, the qualified steam of quality is sent to steam turbine.
Therefore, steam generator is both primary Ioops equipment and secondary circuit equipment, the hinge referred to as one, secondary circuit.
In nuclear power station, to ensure that steam generator normally runs temperature, pressure, it is necessary in real time inside monitoring steam generator
The series of parameters such as power, flow, steam quality.Temperature Distribution inside steam generator is by inputting after boundary condition through soft
Part calculates what is obtained, and Temperature Distribution includes the Temperature Distribution of primary Ioops fluid, heat transfer inside pipe wall outer wall and secondary circuit fluid.Software
Accuracy need verified by testing.However, actual steam generator, internal pressure is big, heat-transfer pipe quantity is more, structure
Complexity, meanwhile, the heat of primary Ioops cooling agent comes from nuclear reactor, and nuclear reactor construction is complicated and with stronger radiation
Property.These factors all bring difficulty to building steam generator testing stand.
The content of the invention
It is an object of the invention to provide a kind of small-sized steam generator thermal hydraulic analysis pilot system, the pilot system
Reasonable in design, it is simple to operate, the working condition of actual steam generator can be simulated.
The present invention is to be achieved through the following technical solutions：
A kind of small-sized steam generator thermal hydraulic analysis pilot system disclosed by the invention, including primary Ioops unit, two
Circuit units, steam generator and data acquisition unit；
Primary Ioops unit is connected by pipeline with steam generator respectively with secondary circuit unit, the fluid energy of primary Ioops unit
It is enough in the fluid of heating secondary circuit unit；
Primary Ioops unit includes storage tank I, cooler I, regenerator I and heating water tank I；Formed in primary Ioops unit：
Storage tank I-cold water-regenerators I-heating water tank I-steam generator-hot water-regenerator I-cooler I-cold water-
Storage tank I internal circulation of liquid；
Secondary circuit unit includes storage tank II, regenerator II, heating water tank II, cooler II and metering water tank；At two times
Formed in the unit of road：Storage tank II-cold water-regenerators II-heating water tank II-steam generator-steam-regenerator
Fluid-gas-internal circulation of liquid of II-cooler II-aqueous water-metering water tanks；
Data acquisition unit is used to gather primary Ioops unit and secondary circuit unit flows into the fluid temperature (F.T.) of steam generator, pressure
Power and flow.
Preferably, data acquisition unit uses IMP data collecting systems, all measuring instruments in addition to water-level gauge
(including electromagnetic flowmeter, electronic flowmeter, differential pressure gauge, pressure gauge I, pressure gauge II, pressure gauge III, pressure gauge IV, pressure gauge
V) it is connected with IMP plates, reading is shown on computers.It is further preferred that the measurement of temperature uses thermocouple, each
Thermocouple also needs to be connected with IMP plates.
Preferably, in primary Ioops unit, storage tank I delivery port is connected with regenerator I cooling water inlet, regenerator I's
Cooling water outlet is connected with heating water tank I water inlet, and heating water tank I delivery port and the primary Ioops hot water of steam generator are intake
Mouth is connected, and the primary Ioops hot water outlet of steam generator is connected with regenerator I water inlet of hot water, regenerator I hot water effluent
Mouth is connected with cooler I water inlet, and cooler I delivery port is connected with storage tank I；
In secondary circuit unit, storage tank II delivery port is connected with regenerator II water inlet, regenerator II delivery port
It is connected with the water inlet for heating water tank II, heating water tank II delivery port is connected with the secondary circuit water inlet of steam generator, steams
Steam lead at the top of vapour generator is connected to cooler II air inlet, cooler II liquid outlet after regenerator II
It is connected with the water inlet for measuring water tank.
Preferably, in primary Ioops unit, the pipeline that cooler I is connected with storage tank I is provided with counterbalance valve I and electromagnetic current
Switch valve I and liquid pump I are sequentially provided with gauge I, the pipeline that storage tank I is connected with regenerator I；It is cold in secondary circuit unit
But device II is provided with counterbalance valve II, the pipeline that storage tank II is connected with regenerator II with the pipeline that metering water tank is connected and set successively
There are switch valve II and liquid pump II, electromagnetic flowmeter II is additionally provided with the pipeline that heating water tank II is connected with steam generator.
Preferably, the steam generator includes being arranged with lining in cylinder, cylinder, and lining bottom is provided with U-shaped heat-transfer pipe,
The top of U-shaped heat-transfer pipe is provided with steam-water separator, and steam-water separator bottom is provided with feed pipe, in steam-water separator correspondence position
Cylinder body outer wall is provided with water-level gauge, and safety valve is additionally provided with the top of cylinder.
Preferably, lining bottom is provided with 4 U-shaped heat-transfer pipes, and arrangement rule of 4 U-shaped heat-transfer pipes in cylinder is：With cylinder
Centered on the axis of body, the equidistant arrangement in longitudinal direction 3 U-shapeds heat-transfer pipe a, b, c, in the level side positioned at middle U-shaped heat-transfer pipe b
To close to barrel side, a piece U-shaped heat-transfer pipe d is set again；Assuming that the distance between a, b, c are also for the distance between t, d and b
T, and t is not less than 1.25 times of U-shaped heat-transfer pipe external diameter.
Preferably, using circular head sealing at the top of cylinder, bottom is sealed using flat-plate closure.
Preferably, the heating water tank I in primary Ioops unit is 3, and 3 heating water tanks are sequentially connected；Secondary circuit unit
In heating water tank II be 1, one, the heating cisten mechanism in secondary circuit unit it is identical；Heating water tank bottom enters provided with two
The mouth of a river, top is provided with a delivery port and a safety valve, and top is sealed using butt welding hubbed flange, and bottom uses flat-plate closure
Welding；One or more heating rods are provided with inside heating water tank, heating rod is made up of supporting section and bringing-up section, supporting section and top
Portion's flange is connected.
Preferably, the regenerator I and regenerator II use double pipe heat exchanger, and hot fluid is by pipe, cold fluid
Outside by pipe.
Compared with prior art, the present invention has following beneficial technique effect：
Small-sized steam generator thermal hydraulic analysis pilot system disclosed by the invention, the system and actual compressed water reactor nuclear power
Station is compared, with it is simple in construction, safe and efficient the characteristics of, omit nuclear reactor this complication system, greatly save and build
Space needed for pilot system and cost.The pilot system is adopted including primary Ioops unit, secondary circuit unit, steam generator and data
Collect unit；Primary Ioops unit is connected by pipeline with steam generator respectively with secondary circuit unit, the fluid energy of primary Ioops unit
It is enough in the fluid of heating secondary circuit unit.Data acquisition unit is used to gather primary Ioops unit and secondary circuit unit flows into steam
Fluid temperature (F.T.), pressure and the flow primary Ioops unit of generator heat cooling water using regenerator, heating water tank, instead of finishing
The complicated nuclear reactor of structure.Primary Ioops unit and secondary circuit unit introduce extraction cycle using regenerator, save energy, carry
The high energy utilization rate of system.
Further, the electromagnetic flowmeter of primary Ioops unit is arranged on after counterbalance valve, and counterbalance valve can be by primary Ioops unit
High pressure be reduced to normal pressure so that electromagnetic flowmeter is to carry out flow measurement at normal temperatures and pressures, simple and easy to apply.
Further, on the premise of it can accurately reflect actual steam generator heat-transfer character, in the steam generator
Only arrange 4 U-shaped heat-transfer pipes, and eliminated drier and do not repartition upper and lower cylinder, enormously simplify steam generator
Design.
Brief description of the drawings
Fig. 1 is the structural representation of small-sized steam generator thermal hydraulic analysis pilot system of the present invention；
Fig. 2 is the structural representation of steam generator of the present invention；
Fig. 3 is the schematic cross-section that Steam Generator U-Tubes are arranged；
Fig. 4 is heating cisten mechanism schematic diagram.
Fig. 5 is supporting plate and the local connection diagram of U-shaped heat-transfer pipe.
Wherein, 1. electromagnetic flowmeter I；2. storage tank I；3. liquid pump I；4. pressure gauge I；5. counterbalance valve I；6. Flow-rate adjustment
Valve I；7. switch valve I；8. cooler I；9. regenerator I；10. flow control valve II；(11.12.13) heating water tank I；
(14.15.16.17.25) safety valve；18. steam generator；19. steam lead；20. pressure gauge II；21. differential pressure gauge；22. pressure
Power Table III；23. pressure gauge IV；24. electromagnetic flowmeter II；26. heat water tank II；27. flow control valve III；28. regenerator
II；29. data acquisition unit；30. cooler II；31. counterbalance valve II；32. flow control valve IV；33. liquid pump II；34. open
Close valve II；35. pressure gauge V；36. measure water tank；37. storage tank II；38. circular head；39. water-level gauge；40. feed pipe；41.
Steam-water separator；42. supporting plate；43.U shape heat-transfer pipes；44. cylinder；45. lining；46. normal work waterline；47. weld bond；
48. flat-plate closure；49. water inlet；50. flat-plate closure；51. water tank wall；52. delivery port；53. heating rod；54. upper flange；55.
Ring flange；56. bolt fastener；57. pad.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Referring to Fig. 1, the invention discloses a kind of small-sized steam generator thermal hydraulic analysis pilot system, including primary Ioops
Unit, secondary circuit unit, steam generator 18 and data acquisition unit 29；
Primary Ioops unit is connected by pipeline with steam generator 18 respectively with secondary circuit unit, the fluid of primary Ioops unit
It can be used in heating the fluid of secondary circuit unit；
Primary Ioops unit is included in storage tank I 2, cooler I 8, regenerator I 9 and heating water tank I, primary Ioops unit
It is 3 to heat water tank I (11,12,13), and 3 heating water tanks are sequentially connected；In primary Ioops unit, storage tank I 2 delivery port
It is connected with regenerator I 9 cooling water inlet, regenerator I 9 cooling water outlet is connected with heating water tank I 11 water inlet, heats
Water tank I delivery port is connected with the primary Ioops water inlet of hot water of steam generator 18, and the primary Ioops hot water of steam generator 18 goes out
The mouth of a river is connected with the water inlet of hot water of regenerator I 9, and the hot water outlets of regenerator I 9 are connected with the water inlets of cooler I 8, cooler
The delivery ports of I 8 are connected with storage tank I 2；The pipeline that cooler I 8 is connected with storage tank I 2 is provided with counterbalance valve I 5 and electromagnetism
Pressure gauge I 4 is additionally provided with flowmeter I 1, the pipeline between counterbalance valve I 5 and electromagnetic flowmeter I 1.Electromagnetic flowmeter I 1 is surveyed
Amount be primary Ioops fluid normal temperature and pressure when volume flow, because mass flow is constant, and density can be by temperature and pressure
Power is checked in, therefore the volume flow of the primary Ioops fluid under HTHP can be obtained by calculating.In this way, it is possible to solve height
The problem of volume flow of pressure primary Ioops fluid is difficult to measurement.
Switch valve I 7 and liquid pump I 3, storage tank I are sequentially provided with the pipeline that storage tank I 2 is connected with regenerator I 9
The pipeline of 2 cold water outflow is provided with flow control valve I 6, the fluid flow for adjusting pipeline.Regenerator I 9 cooling water outlet
Flow control valve II 10 is provided with heating water tank I 11 pipelines being connected；Three tops of heating water tank I 11,12,13 correspondences
Provided with a safety valve 14,15,16；The top of steam generator 18 also is provided with a safety valve 17, the one of steam generator 18
Pressure gauge II 20 is provided with the water inlet of hot water of loop；Differential pressure gauge 21 is used for the primary Ioops flow resistance for measuring steam generator, its
High-pressure side is connected to primary Ioops entrance, and low-pressure end is connected to primary Ioops outlet.Formed in primary Ioops unit：Storage tank I-cold
Water-regenerator I-heating water tank I-1-hot water of steam generator-regenerator I-cooler I-cold water-storage tank I's
Internal circulation of liquid.
Secondary circuit unit includes storage tank II 37, regenerator II 28, heating water tank II 26, cooler II 30 and metering
Water tank 36；In secondary circuit unit, storage tank II 37 delivery port is connected with regenerator II 28 water inlet, regenerator II 28
Delivery port be connected with heating water tank II 26 water inlet, heating water tank II 26 delivery port and two times of steam generator 18
Road water inlet is connected, and the steam lead 19 at the top of steam generator 18 is connected to cooler II's 30 after regenerator II 28
Air inlet, cooler II 30 liquid outlet is connected with measuring the water inlet of water tank 36.Cooler II 30 and metering water tank 36
Counterbalance valve II 31 and pressure gauge V 35, the pipe that storage tank II 37 is connected with regenerator II 28 are sequentially provided with connected pipeline
Switch valve II 34 and liquid pump II 33 are sequentially provided with road, the pipeline being connected in heating water tank II 26 with steam generator 18
On be also sequentially provided with electromagnetic flowmeter II 24 and pressure gauge IV 23, the pipeline of the cold water of storage tank II 37 outflow is provided with flow
Regulating valve IV 32, the fluid flow for adjusting pipeline.Regenerator II 28 is provided with heating water tank II 26 pipelines being connected
Flow control valve III 27, the steam lead 19 of steam generator 18 is provided with pressure gauge III 22；The shape in secondary circuit unit
Into：Storage tank II-cold water-regenerators II-heating water tank II-steam generator-steam-regenerator II-coolers
Fluid-gas-internal circulation of liquid of II-aqueous water-metering water tank.
Data acquisition unit is used to gather primary Ioops unit and secondary circuit unit flows into the fluid temperature (F.T.) of steam generator, pressure
Power and flow.Data acquisition unit uses IMP data collecting systems, all measuring instruments in addition to water-level gauge 39 with
IMP plates are connected, and reading is shown on computers.
Preferably, the material of described steam generator use 304 stainless steels, and cylinder and U-shaped heat-transfer pipe need by
Strength check, to reach high voltage bearing requirement.
Described regenerator and the material of cooler also use 304 stainless steels, it is also desirable to pass through strength check, reach
Pressure-resistant requirement.The out temperature of regenerator and cooler oneself can be selected.The regenerator uses double pipe heat exchanger,
Hot fluid is walked in pipe, and cold fluid is walked outside pipe.
Referring to Fig. 2, steam generator includes being arranged with lining 45 in cylinder 44, cylinder 44, and the bottom of lining 45 is passed provided with U-shaped
Heat pipe 43, the top of U-shaped heat-transfer pipe 43 is provided with steam-water separator 41, and the bottom of steam-water separator 41 is provided with feed pipe 40, in carbonated drink
The outer wall of cylinder 44 of the correspondence position of separator 41 is provided with water-level gauge 39, and safety valve 17 is additionally provided with the top of cylinder 44.Steam is sent out
The bottom of raw device 18 is welded using flat-plate closure 50, and top is sealed using circular head 38, is required to possess good sealing property, together
When, to reach high voltage bearing demand, flat-plate closure and circular head are needed by strength check.In addition, U-shaped heat-transfer pipe 43 and cylinder
Body 44 is also needed by strength check.Referring to Fig. 5, the effect of supporting plate 42 is Fixed Tube-sheet Reboiler, and supporting plate 42 and U-shaped heat-transfer pipe 43 are adopted
Welded with the mode of four leaf plum blossom pore structures, fluid flows through through the space between supporting plate 42 and U-shaped heat-transfer pipe 43.
Referring to Fig. 3, lining bottom is provided with 4 U-shaped heat-transfer pipes, arrangement rule of 4 U-shaped heat-transfer pipes in cylinder：With
Centered on the axis of cylinder, the equidistant arrangement in longitudinal direction 3 U-shapeds heat-transfer pipe a, b, c, in the level positioned at middle U-shaped heat-transfer pipe b
Direction sets a U-shaped heat-transfer pipe d again close to barrel side；Assuming that the distance between a, b, c are the distance between t, d and b
For t, and t is not less than 1.25 times of U-shaped heat-transfer pipe external diameter.
Referring to Fig. 4, heating water tank bottom is provided with a delivery port 52 and a safety provided with two water inlets 49, top
Valve, top is sealed using butt welding hubbed flange, and ring flange 55 and upper flange 54 are fastened by bolts part 56 and fixed, and inside set pad
57；Welded using flat-plate closure 50 bottom；One or more heating rods 53 are provided with inside heating water tank, heating rod is by supporting section
With bringing-up section composition, supporting section is connected with top flange.
The working medium flow of small-sized steam generator thermal hydraulic analysis pilot system of the present invention is：
The normal temperature cold water in switch valve I 7, primary Ioops storage tank I 2 is opened by the pressurized delivereds of liquid pump I 3, by backheat
Device I 9 is heated, and is sequentially entered three water tanks 11,12,13 and is heated, and controls output temperature, pressure to reach steam generator
After 18 primary Ioops inlet temperatures, operating pressure, secondary circuit fluid is heated into steam generator 18.Flow out steam generator 18
Primary Ioops hot water heats cold water to reduce the power of heating water tank 11,12,13 and save the energy via regenerator I 9, Ran Houliu
Normal temperature is cooled to through cooler I 8, the circulation that normal pressure completes primary Ioops into storage tank I 2 is down to after counterbalance valve I 5.
Switch valve II 34 is opened, secondary circuit cold fluid flows out from storage tank II 37, is pressurizeed by liquid pump II 33 laggard
Enter regenerator II 28 and heating water tank II 26, reach that feedwater requires to enter the heat that steam generator 18 absorbs primary Ioops after temperature
Measure and produce steam.The steam of generation is exported from steam lead 19, heats cold water through regenerator II 28 to reduce heating water tank II
26 power simultaneously saves the energy.Then, steam is cooled to aqueous water through cooler II 30, is down to often by counterbalance valve II 31
Pressure, finally enters the metering metering yield of water tank 36.Data acquisition unit 29 is mainly used in gathering one time in steam generator 18
The out temperature of road fluid, pressure, flow and secondary circuit fluid inlet and outlet temperature, pressure, flow.
The primary Ioops operating pressure of pilot system of the present invention is 15.5MPa, and secondary circuit operating pressure is 6MPa, steam generation
The primary Ioops fluid inlet and outlet temperature of device is respectively 323 DEG C, 280 DEG C, and secondary circuit feed temperature is 226 DEG C.This is Daya Gulf core
The full power steady-state operation parameter of power station steam generator.This 5 parameters of different steam generators have difference, but set
Meter pilot system must be consistent with the actual operation parameters of corresponding steam generator.
Claims (8)
1. a kind of small-sized steam generator thermal hydraulic analysis pilot system, it is characterised in that including primary Ioops unit, secondary circuit
Unit, steam generator and data acquisition unit；
Primary Ioops unit is connected by pipeline with steam generator respectively with secondary circuit unit, and the fluid of primary Ioops unit can be used
In the fluid of heating secondary circuit unit；
Primary Ioops unit includes storage tank I, cooler I, regenerator I and heating water tank I；Formed in primary Ioops unit：Water storage
Case I-cold water-regenerators I-heating water tank I-steam generator-hot water-regenerator I-cooler I-cold water-water storage
Case I internal circulation of liquid；
Secondary circuit unit includes storage tank II, regenerator II, heating water tank II, cooler II and metering water tank；In secondary circuit list
Formed in first：Storage tank II-cold water-regenerators II-heating water tank II-steam generator-steam-regenerator II-are cold
But fluid-gas-internal circulation of liquid of device II-aqueous waters-metering water tank；
Data acquisition unit be used to gathering primary Ioops unit and secondary circuit unit flow into the fluid temperature (F.T.) of steam generator, pressure and
Flow.
2. small-sized steam generator thermal hydraulic analysis pilot system according to claim 1, it is characterised in that primary Ioops
In unit, storage tank I delivery port is connected with regenerator I cooling water inlet, and regenerator I cooling water outlet is with heating water tank I's
Water inlet is connected, and heating water tank I delivery port is connected with the primary Ioops water inlet of hot water of steam generator, and the one of steam generator
Loop hot water outlet is connected with regenerator I water inlet of hot water, regenerator I hot water outlet and cooler I water inlet phase
Even, cooler I delivery port is connected with storage tank I；
In secondary circuit unit, storage tank II delivery port is connected with regenerator II water inlet, and regenerator II delivery port is with adding
Boiler II water inlet is connected, and heating water tank II delivery port is connected with the secondary circuit water inlet of steam generator, steam hair
Steam lead at the top of raw device is connected to cooler II air inlet, cooler II liquid outlet and meter after regenerator II
The water inlet of water-masuring box is connected.
3. small-sized steam generator thermal hydraulic analysis pilot system according to claim 1, it is characterised in that at one time
In the unit of road, the pipeline that cooler I is connected with storage tank I is provided with counterbalance valve I and electromagnetic flowmeter I, storage tank I and regenerator
Switch valve I and liquid pump I are sequentially provided with pipeline connected I,
In secondary circuit unit, the pipeline that cooler II is connected with metering water tank is provided with counterbalance valve II, storage tank II and backheat
Switch valve II and liquid pump II are sequentially provided with pipeline connected device II, the pipeline being connected in heating water tank II with steam generator
On be additionally provided with electromagnetic flowmeter II.
4. the small-sized steam generator thermal hydraulic analysis pilot system according to any one in claims 1 to 3, it is special
Levy and be, the steam generator includes being arranged with lining in cylinder, cylinder, lining bottom is provided with U-shaped heat-transfer pipe, U-shaped heat transfer
The top of pipe is provided with steam-water separator, and steam-water separator bottom is provided with feed pipe, outside the cylinder of steam-water separator correspondence position
Wall is provided with water-level gauge, and safety valve is additionally provided with the top of cylinder.
5. small-sized steam generator thermal hydraulic analysis pilot system according to claim 4, it is characterised in that lining bottom
Portion is provided with 4 U-shaped heat-transfer pipes, arrangement rule of 4 U-shaped heat-transfer pipes in cylinder：Centered on the axis of cylinder, longitudinal direction
Equidistant arrangement 3 U-shapeds heat-transfer pipe a, b, c, are set again in the horizontal direction positioned at middle U-shaped heat-transfer pipe b close to barrel side
A piece U-shaped heat-transfer pipe d；Assuming that it is also t that the distance between a, b, c, which are the distance between t, d and b, and t is not less than 1.25 times of U
Shape heat-transfer pipe external diameter.
6. small-sized steam generator thermal hydraulic analysis pilot system according to claim 4, it is characterised in that cylinder top
Portion is sealed using circular head, and bottom is sealed using flat-plate closure.
7. the small-sized steam generator thermal hydraulic analysis pilot system according to any one in claims 1 to 3, it is special
Levy and be, the heating water tank I in primary Ioops unit is 3, and 3 heating water tanks are sequentially connected；Heating in secondary circuit unit
Water tank II is 1, one, the heating cisten mechanism in secondary circuit unit it is identical；Water tank bottom is heated provided with two water inlets, top
Provided with a delivery port and a safety valve, top is sealed using butt welding hubbed flange, and bottom is welded using flat-plate closure；Adding
One or more heating rods are provided with inside boiler, heating rod is made up of supporting section and bringing-up section, supporting section is consolidated with top flange
Even.
8. the small-sized steam generator thermal hydraulic analysis pilot system according to any one in claims 1 to 3, it is special
Levy and be, the regenerator I and regenerator II use double pipe heat exchanger, hot fluid by pipe, cold fluid by pipe outside.
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| CN201710510410.4A CN107293340B (en) | 2017-06-28 | 2017-06-28 | A kind of small-sized steam generator thermal hydraulic analysis pilot system |
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| CN201710510410.4A CN107293340B (en) | 2017-06-28 | 2017-06-28 | A kind of small-sized steam generator thermal hydraulic analysis pilot system |
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| CN107293340B CN107293340B (en) | 2019-08-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107731324A (en) * | 2017-10-31 | 2018-02-23 | 中广核工程有限公司 | A kind of nuclear power station unit station thermal performance test summer condition simulation system and method |
| CN107945896A (en) * | 2017-11-10 | 2018-04-20 | 中国科学院近代物理研究所 | A kind of application method of high temperature and pressure water flow bulk effect simulator |
| CN109029829A (en) * | 2018-07-26 | 2018-12-18 | 中广核工程有限公司 | A kind of calculation method and system of Steam Generators in NPP upper section internal pressure |
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