CN107091754A - A kind of simulation experiment system of HVDC-valve inner cold system - Google Patents
A kind of simulation experiment system of HVDC-valve inner cold system Download PDFInfo
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- CN107091754A CN107091754A CN201710384856.7A CN201710384856A CN107091754A CN 107091754 A CN107091754 A CN 107091754A CN 201710384856 A CN201710384856 A CN 201710384856A CN 107091754 A CN107091754 A CN 107091754A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/008—Monitoring fouling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
Abstract
A kind of simulation experiment system of HVDC-valve inner cold system, it includes filtering module, detection means and loop module；Loop module includes ion-exchanger, main circulation pump, heating water tank, aluminium radiator, expansion tank and refrigerator, main circulation pump delivery outlet after pipeline successively heated water tank, aluminium radiator, expansion tank with refrigerator entrance by being connected, refrigerator outlet is connected to constitute main circulation loop by pipeline with main circulation pump input port, ion-exchanger outlet exports the pipeline communication between main circulation pump input port through outlet pipe and positioned at refrigerator, and outlet pipe is provided with water intaking valve；Detection means is arranged between aluminium radiator and expansion tank on pipeline；Filtering module outlet is connected with ion-exchanger entrance.The present invention can be used for carrying out experimental study to HVDC-valve inner cold system, and the corrosion of valve inner cold system aluminium radiator and screening electrodes fouling present situation are tested.
Description
Technical field
The present invention relates to electric power project engineering field, and in particular to a kind of simulated test system of HVDC-valve inner cold system
System.
Background technology
D.C. high voltage transmission (HVDC) is with its features such as corridor is narrow, power transmission efficiency is high, power attenuation is small of transmitting electricity, as resource
Distribute rationally and transfer electricity from the west to the east the first choice of strategy implementation, effectively alleviate China's energy resources skewness and power load not
Contradiction, is developed rapidly at home in a balanced way.Wherein, converter valve is the nucleus equipment of HVDC transmission system, in fact
The conversion of existing alterating and direct current.IGCT is the basic Component units of transverter, in normal commutation process, can produce substantial amounts of heat
Amount, and with the development of HVDC transmission system, the lifting of transmission capacity, the heat that IGCT is produced is bigger, and this is accomplished by
The accessory system valve cooling system (Aluminium Radiator) of converter valve maintains its temperature in the reasonable scope, to ensure converter valve just
Often work.But in actual production, interaction can occur with the dissolved oxygen in water and water and occur corrosion and heavy for aluminium radiator
Product and form incrustation scale, after valve cold water- cooling generator operation some cycles, the incrustation scale that corrosion is produced will be accumulated, and obstruction cooling water is returned
Road causes element radiating not smooth, influences the normal operation of high-voltage direct current, and locking is even resulted in when serious, produces huge warp
Ji loss and social influence.It can be seen that the corrosion of Aluminium Radiator is fatal in HVDC transmission system, if can not solve
The certainly etching problem of aluminium radiator, the normal operation of HVDC transmission system cannot ensure.Therefore, aluminium radiator
Corrosion and scale problems, have become the factor for the safe and stable operation for influenceing whole HVDC transmission system, it need to be opened
Exhibition research.
For the corrosion and scaling problem of water- cooling generator, one of its main forms are exactly the fouling of screening electrodes.Knot
Dirt causes contact resistance between screening electrodes and inner cold water to increase and produce voltage drop, and then weakens the effect of equilibrium potential.Separately
Outside, the foulant of electrode surface sheds into water pipe, cause water pipe narrow in addition block screen pack, and then influence water-carrying capacity and
One of the radiating effect of IGCT, main destabilizing factor as influence HVDC transmission system operation.
The generation of above-mentioned screening electrodes problem, the active demand of having researched and proposed to screening electrodes fouling in recent years, surpasses
High voltage power transmission company corrodes for converter valve water- cooling generator, has carried out many research work.Some problems are solved, are such as reduced
The amount of foulant in water pipe, but still suffer from the danger of blocking, during maintenance the foulants of screening electrodes be still layer go out it is infinite.Research
It is conceived to the control and management for strengthening valve cooling system mostly, no small production improvement effect has been obtained, in combination with direct current transportation
The screening electrodes scale removal work carried out during engineering interruption maintenance, substantially avoid due to the hair of production accident caused by fouling
Give birth to, but the situation of fouling is not solved thoroughly yet.It can be seen that, we do not understand the machine of valve tower water- cooling generator electrochemical corrosion
Reason, so also just not catching material corrosion and then " ox muzzle " of fouling.As thoroughly solved the corrosion of valve tower water- cooling generator
Problem, it is necessary to further investigate the underlying issue of its corrosion, suppresses the generation of corrosion from its basic point.
The content of the invention
Present invention aims at a kind of simulation experiment system of HVDC-valve inner cold system is provided, available for high straightening
Flow valve inner cold system and carry out experimental study, and can be to inner cold water electrical conductivity, pH value, carbon dioxide and oxygen concentration, flow, pressure
Research is analyzed in the influence factors such as power, temperature, fin material.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of simulation experiment system of HVDC-valve inner cold system, it includes filtering module, detection means and cyclic module
Block；
Loop module includes ion-exchanger, main circulation pump, heating water tank, aluminium radiator, expansion tank and refrigerator,
Main circulation pump delivery outlet is freezed by being connected after pipeline successively heated water tank, aluminium radiator, expansion tank with refrigerator entrance
Machine outlet be connected by pipeline with main circulation pump input port so as to constitute main circulation loop, ion-exchanger export through outlet pipe and
The pipeline communication between main circulation pump input port is exported positioned at refrigerator, outlet pipe is provided with water intaking valve；Detection means is set
On pipeline and for detecting dissolved oxygen concentration, ion concentration, electrical conductivity and PH in water between aluminium radiator and expansion tank
Value；Filtering module outlet is connected with ion-exchanger entrance.
The filtering module includes：Pretreatment filters, first-stage reverse osmosis device, second level reverse osmosis apparatus, EDI desalinations dress
Put and pure water tank, pretreatment filters outlet by pipeline successively through first-stage reverse osmosis device, second level reverse osmosis apparatus,
It is connected after EDI demineralizers and pure water tank with ion-exchanger entrance.
Further, the ion-exchanger is cation and anion exchange device.
As a modification of the present invention, the simulation experiment system includes water replanishing device, and water replanishing device includes water supply tank
And small pump, water supply tank outlet be connected with moisturizing pump intake, moisturizing pump discharge is connected with pure water tank inlet, moisturizing pump discharge with it is pure
Refrigerator and EDI demineralizers are connected between tank entry, water valve is provided between moisturizing pump discharge and pure water tank inlet.
Further, the detection means includes dissolved oxygen sensor, ion concentration measurement instrument, conductance instrument and PH
It is worth measuring instrument.
As a modification of the present invention, the main circulation loop is provided with automatic exhaust steam valve.
As a modification of the present invention, the main circulation loop is provided with CO2And O2Adjustment module, CO2And O2Adjust mould
Block includes CO2Storage tank and O2Storage tank, CO2Storage tank and O2The outlet of storage tank is connected through valve with main circulation loop respectively.
As a modification of the present invention, the expansion tank is provided with nitrogen pot, the outlet of nitrogen pot through magnetic valve with
Expansion tank is connected, and safety valve is provided with the top of expansion tank.
The aluminium radiator is two groups of aluminium radiators, and every group of aluminium radiator includes several aluminium radiators, one of which
The surface of aluminium radiator is coated with corrosion resistant material.
Pressure gauge is provided between the ion-exchanger and main circulation pump, is provided between the main circulation pump and heating water tank
Water thermometer, is provided with flowmeter between the heating water tank and aluminium radiator.
Compared with prior art, the present invention has advantages below：
The present invention can be used for carrying out experimental study to HVDC-valve inner cold system, and valve inner cold system aluminium radiator is corroded
And screening electrodes fouling present situation is tested；On the other hand can be dense from inner cold water electrical conductivity, pH value, carbon dioxide and oxygen
The fin material of influence in terms of degree, flow, pressure, temperature, to(for) fin corrosion and screening electrodes fouling does qualitative fixed
Amount analysis, according to result of the test, can carry out transformation and optimization, and can propose that valve inner cold system corrodes accordingly to valve inner cold system
Scale problems renovation scheme, fundamentally solves DC engineering valve inner cold system radiator and screening electrodes sealing ring burn into is equal
Piezoelectricity pole scale problems, greatly improve valve cooling system operational reliability, and reduction locking risk caused by scale problems improves electricity
The security and stability of net.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Circuit connection diagram when Fig. 2 is simulated test of the present invention；
The schematic diagram that aluminium radiator is connected in series when Fig. 3 is simulated test of the present invention；
The schematic diagram that aluminium radiator is connected in parallel when Fig. 4 is simulated test of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.It is understood that tool described herein
Body embodiment is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of retouching
State, part related to the present invention rather than full content are illustrate only in accompanying drawing.
Embodiment
As shown in figure 1, a kind of simulation experiment system of HVDC-valve inner cold system, it includes filtering module 20, detection
Device 30 and loop module 10.
Loop module 10 includes ion-exchanger 16, main circulation pump 11, heating water tank 12, aluminium radiator 13, expansion tank
14 and refrigerator 15, the delivery outlet of main circulation pump 11 passes through pipeline successively heated water tank 12, aluminium radiator 13, expansion tank 14
It is connected afterwards with the entrance of refrigerator 15, the outlet of refrigerator 15 is connected to constitute major cycle by pipeline with the input port of main circulation pump 11
Loop, ion-exchanger 16, which exports through outlet pipe and exports the pipeline between the input port of main circulation pump 11 positioned at refrigerator 15, to be connected
Logical, outlet pipe is provided with water intaking valve.In order to ensure that experimental provision runs well, main circulation pump 11 is standby each other provided with two, just
In the case of often, only one pump operating cycle, two pumps are switched over by cycle regular hour, and main circulation pump 11 is mainly used in
Circulation power is provided to water- cooling generator.
Detection means 30 is arranged between aluminium radiator 13 and expansion tank 14 on pipeline and for detecting the dissolving in water
Oxygen concentration, ion concentration, electrical conductivity and pH value.Specifically, detection means 30 includes dissolved oxygen sensor, 31 ion concentration measurements
Instrument 32, conductance instrument 33 and pH value measuring instrument 34.
The outlet of filtering module 20 is connected with the entrance of ion-exchanger 16；Wherein, filtering module 20 includes pretreatment filtration
Device 21, first-stage reverse osmosis device 22, second level reverse osmosis apparatus 23, EDI demineralizers 24 and pure water tank 25, the pretreatment filtration
The outlet of device 21 is by pipeline successively through first-stage reverse osmosis device 22, second level reverse osmosis apparatus 23, EDI demineralizers 24 and pure water tank
It is connected after 25 with the entrance of ion-exchanger 16.When in use, using running water as medium, because running water is not pure water, because
This must use filtering module to carry out filtration treatment, and running water first passes around and impurity is filtered out after pretreatment filters, Ran Houzai
The higher water of purity is obtained after first-stage reverse osmosis device and second level reverse osmosis apparatus, is eventually passed at EDI demineralizers
Ultra-pure water is obtained after reason, it is ensured that the quality of aqueous medium.It is provided with moreover, pure water tank 25 is exported between the entrance of ion-exchanger 16
Water valve, in order to control cyclic process.
In the present embodiment, the ion-exchanger 16 is cation and anion exchange device, the negative resin of cation and anion exchange device
161 and positive resin 162 be connected successively with conductivity sensor 163, Flow Observation hole 164 and filter 165 respectively after in parallel, use
In the ion exchange for carrying out inner cold water, it is ensured that inner cold water electrical conductivity is in the ratio of reduced levels, wherein negative resin and positive resin
It is adjustable.
As shown in Fig. 2 when carrying out simulated test to HVDC-valve inner cold system using the present invention, the ring of aluminium radiator 13
It is wound on the IGCT 200 of converter valve, the two ends of the water inlet pipe 131 of aluminium radiator 13 and outlet pipe 132, which are separately installed with, just presses
Electrode 400 and negative screening electrodes 500, when the quantity of aluminium radiator is multiple, multiple aluminium radiators 13 pass through even resistance 300
It is connected with each other, then AC220kV dc sources 100 is connected to the negative electrode and anode of IGCT 200, the positive He of screening electrodes 400
Negative both positive and negative polarity of the screening electrodes 500 respectively with AC220kV dc sources 100 is connected.It is general straight for inner cold water electrical conductivity factor
Flow the control of cold water in convertor station electrical conductivity in 0.05~0.15 μ S/cm, the control of ion-exchanger water outlet conductivity 0.03~
The content concn of ion exchange resin in 0.11 μ S/cm, adjustment ion-exchanger, can adjust the electrical conductivity of inner cold water, Ke Yifen
Not She Zhi ion exchange resin content concn be 1g/L, 5g/L, 10g/L, 15g/L, 20g/L, 25g/L, 30g/L, it is ensured that other because
Element is constant, studies the situation of aluminium radiator corrosion and screening electrodes fouling under different ions resin concentration.
For temperature factor, it is configured by heating water tank, inner cold water temperature point when entering radiator can be studied
The situation of aluminium radiator corrosion and screening electrodes fouling when Wei not be 40 DEG C, 45 DEG C, 50 DEG C, 55 DEG C.
For flow factor, the flow velocity of inner cold water can be set to adjust the rotating speed of main circulation pump, major cycle can be studied
Revolution speed is respectively aluminium radiator corruption in the case of 1000r/min, 1500r/min, 2000r/min, 2500r/min, 3000r/min
Erosion and the situation of screening electrodes fouling.
In the present embodiment, the main circulation loop is provided with automatic exhaust steam valve 70.Automatic exhaust steam valve main function is certainly
The dynamic gas drained in circulation loop.In addition, being provided with pressure gauge 17, main circulation pump between ion-exchanger 16 and main circulation pump 11
Water thermometer 18 is provided between 11 and heating water tank 12, flowmeter 19 is provided between heating water tank 12 and aluminium radiator 13.
In the present embodiment, the expansion tank 14 is provided with nitrogen pot 141, and the outlet of nitrogen pot 141 is through magnetic valve 142
It is connected with expansion tank 14, the top of expansion tank 14 is provided with safety valve.Expansion tank uses sealed expansion tank, and and nitrogen
Gas tank is connected, and using the nitrogen stabilization pressure for being not susceptible to chemical reaction, can also realize the effect of interior water-cooling system voltage stabilizing.Expansion tank
The nitrogen of interior constant pressure can maintain the pressure in converter valve water-cooling system with cooling medium in receiving valve cooling system because temperature becomes
Volumetric expansion caused by change.Internal nitrogen pressure 0.3~0.5 atmospheric pressure higher than atmospheric pressure, and pass through control system
Maintain draught head stable, if expansion tank is moved into ground, need the pressure having along with valve tower height degree, i.e., former expansion
The pressure that water tank has away from ground level.When expand pressure inside the tank be less than certain value when, open source nitrogen outlet magnetic valve to
Input pressure in expansion drum, maintains expansion pressure inside the tank constant；When expanding pressure inside the tank superelevation, safety valve automatically opens up row
Gas, maintains expansion pressure inside the tank constant.For pressure factor, pressure is adjusted by nitrogen pot, can study its pressure for 5,
5.5th, 6,6.5, during 7bar, the situation of corrosion and the screening electrodes fouling of aluminium radiator.
In one embodiment of the invention, the simulation experiment system includes water replanishing device 40, and water replanishing device 40 includes
Water supply tank 42 and small pump 41, the outlet of water supply tank 42 are connected with the entrance of small pump 41, the outlet of small pump 41 and the entrance of pure water tank 25
Connection, small pump 41 is exported is connected with refrigerator 43 and EDI demineralizers 44 between the entrance of pure water tank 25, and small pump 41 is exported
Water valve is provided between the entrance of pure water tank 25；Other small pump 41 is exported to be connected also by water valve with main circulation loop.When interior
Cold water deficiency is to start small pump when expansion tank water level is less than 30% to carry out moisturizing to water- cooling generator, and moisturizing is by cooling down and removing
Enter pure water tank or main circulation loop after salt.Wherein, small pump 41 has two, and standby each other, under normal circumstances, only one is mended
Water pump operation, two pumps are switched over by cycle regular hour, and small pump 41 is mainly used in moisturizing being delivered to major cycle time
In road or pure water tank.
In one embodiment of the invention, the main circulation loop is provided with CO2And O2Adjustment module 50, CO2And O2Adjust
Saving module 50 includes CO2Storage tank 51 and O2Storage tank 52, CO2Storage tank 51 and O2The outlet of storage tank 52 is returned through valve and major cycle respectively
Road is connected.For the concentration of carbon dioxide and oxygen, CO can be passed through2And O2CO in adjustment module2Tank and O2Tank is adjusted
Section, according to principle of electrochemical reaction, oxygen directly participates in galvanic interaction, and aluminium hydroxide is formed with water and reactive aluminum, therefore interior
How much cold water oxygen content directly affects galvanic interaction process, and then influences corrosion rate, and the concentration for setting dissolved oxygen is respectively
1.5mg/L, 2mg/L, 2.5mg/L, 3mg/L, 3.5mg/L, 4mg/L, 4.5mg/L, research aluminium under different oxygen concentrations radiate
Device corrosion and the situation of screening electrodes fouling.
Equally, CO is added in inner cold water2The Al (OH) in converter valve coolant can be suppressed3Content, so as to prevent electrode
The generation of fouling.Principle is as follows：H2O+CO2=H2CO3
Al(OH)3+H2CO3=HAlO2+2H2O+CO2
Different CO are equally set2Concentration studies are in different CO2The feelings of aluminium radiator corrosion and screening electrodes fouling under concentration
Condition.But CO is added in inner cold water2Inner cold water slant acidity can be made, although screening electrodes fouling can be suppressed but aluminium can be accelerated to radiate
Device corrodes, and optimal concentration can be found out by simulated test.
In one embodiment of the invention, the aluminium radiator 13 is two groups of aluminium radiators, and every group of aluminium radiator includes
There are several aluminium radiators 13, the surface of one of which aluminium radiator is coated with corrosion resistant material.For radiator material, in reality
Offer two groups of aluminium radiators of plated film and non-plated film in example are provided, not only can be with radiator in the case of contrast experiment's plated film and non-plated film
Corrosion condition, different films can also be further plated to aluminium radiator, the situation under its different plated film is studied.Such as Fig. 3 and Fig. 4
Shown, the Inlet and outlet water mode of several aluminium radiators can be the mode of several aluminium radiators Inlet and outlet water in parallel；Can also be
Two groups several aluminium radiators are each connected after Inlet and outlet water, then parallel with one another, so as to study it in different water route situations
Under aluminium radiator corrosion and screening electrodes fouling situation.
The present invention can set electrochemical workstation 60, and electrochemical workstation 60 is used to show in monitoring test plant running
Parameter and Control experiment plant running process, electrochemical workstation 60 is displayed for dissolved oxygen, ion concentration, conductance
The numerical value such as rate, pH value, pressure, flow, temperature and liquid level, while main circulation pump, small pump, heating water tank, cooling can be controlled
Machine, valve and voltage source.The dissolved oxygen that intuitively display detecting instrument is monitored of electrochemical workstation 60, ion concentration, electrical conductivity
And pH value, the pressure value of pressure gauge monitoring, the flow value of flowmeter monitoring, the temperature value of thermometer monitoring, the liquid of expansion tank
Place value.
In summary, the present invention passes through pipeline successively heated water tank, aluminium radiator, expansion by main circulation pump delivery outlet
It is connected after water tank with refrigerator entrance, refrigerator outlet is connected by pipeline with main circulation pump input port to be returned so as to constitute major cycle
Road, your experimental rig is touched so as to constitute, and the present invention has advantages below compared with prior art：
1st, the present invention can be used for carrying out experimental study to HVDC-valve inner cold system, rotten to valve inner cold system aluminium radiator
Erosion and screening electrodes fouling present situation are tested；
2nd, can be from inner cold water electrical conductivity, pH value, carbon dioxide and oxygen concentration, flow, pressure, temperature, fin material
Qualitative and quantitative analysis is done in the matter of influence in terms of to(for) fin corrosion and screening electrodes fouling,；
3rd, according to result of the test, transformation and optimization can be carried out to valve inner cold system, and valve inner cold system can be proposed accordingly
Corrosion and scaling problem renovation scheme, fundamentally solves DC engineering valve inner cold system radiator and screening electrodes sealing ring is rotten
Erosion, screening electrodes scale problems, greatly improve valve cooling system operational reliability, reduce the locking risk caused by scale problems,
Improve the security and stability of power network.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and the embodiment simultaneously is not used to limit this hair
Bright the scope of the claims, all equivalence enforcements or change without departing from carried out by the present invention are intended to be limited solely by the scope of the claims of this case.
Claims (10)
1. a kind of simulation experiment system of HVDC-valve inner cold system, it is characterised in that：Including filtering module, detection means and
Loop module；
Loop module includes ion-exchanger, main circulation pump, heating water tank, aluminium radiator, expansion tank and refrigerator, and master follows
Ring pump delivery outlet after pipeline successively heated water tank, aluminium radiator, expansion tank with refrigerator entrance by being connected, and refrigerator goes out
Mouth is connected by pipeline with main circulation pump input port so as to constitute main circulation loop, and ion-exchanger outlet is through outlet pipe with being located at
Refrigerator exports the pipeline communication between main circulation pump input port, and outlet pipe is provided with water intaking valve；
Detection means be arranged between aluminium radiator and expansion tank on pipeline and for detect the dissolved oxygen concentration in water, from
Sub- concentration, electrical conductivity and pH value；Filtering module outlet is connected with ion-exchanger entrance.
2. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The filtering
Module includes：Pretreatment filters, first-stage reverse osmosis device, second level reverse osmosis apparatus, EDI demineralizers and pure water tank, it is described
Pretreatment filters outlet is by pipeline successively through first-stage reverse osmosis device, second level reverse osmosis apparatus, EDI demineralizers and pure water
It is connected after case with ion-exchanger entrance.
3. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The ion
Exchanger is cation and anion exchange device.
4. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The simulation
Pilot system includes water replanishing device, and water replanishing device includes water supply tank and small pump, and water supply tank outlet is connected with moisturizing pump intake, mended
Exit of pump is connected with pure water tank inlet, and refrigerator and EDI demineralizers are connected between moisturizing pump discharge and pure water tank inlet,
Water valve is provided between moisturizing pump discharge and pure water tank inlet.
5. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The detection
Device includes dissolved oxygen sensor, ion concentration measurement instrument, conductance instrument and pH value measuring instrument.
6. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The master follows
Loop back path is provided with automatic exhaust steam valve.
7. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The master follows
Loop back path is provided with CO2And O2Adjustment module, CO2And O2Adjustment module includes CO2Storage tank and O2Storage tank, CO2Storage tank and O2Storage tank
Outlet is connected through valve with main circulation loop respectively.
8. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The expansion
Water tank is provided with nitrogen pot, and the outlet of nitrogen pot is connected through magnetic valve with expansion tank, and safety valve is provided with the top of expansion tank.
9. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：The aluminium dissipates
Hot device is two groups of aluminium radiators, and every group of aluminium radiator includes several aluminium radiators, the surface plating of one of which aluminium radiator
There is corrosion resistant material.
10. the simulation experiment system of HVDC-valve inner cold system according to claim 1, it is characterised in that：It is described from
Pressure gauge is provided between sub- exchanger and main circulation pump, water thermometer is provided between the main circulation pump and heating water tank, it is described to add
Flowmeter is provided between boiler and aluminium radiator.
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Cited By (11)
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|---|---|---|---|---|
| CN107796849A (en) * | 2017-11-23 | 2018-03-13 | 宁波迪奥机械有限公司 | A kind of radiator test system and method for testing |
| CN108495529A (en) * | 2018-04-17 | 2018-09-04 | 全球能源互联网研究院有限公司 | A kind of converter valve cooling water channel |
| CN108614010A (en) * | 2018-05-25 | 2018-10-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of high voltage direct current converter valve screening electrodes Fouling Test detecting system and method |
| CN109319972A (en) * | 2018-08-30 | 2019-02-12 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of outer cold water conductivity automatic control system of valve cooling system |
| CN110261099A (en) * | 2019-06-20 | 2019-09-20 | 江苏亿阀股份有限公司 | A kind of Subzero valve intercooling cycle experimental system |
| CN110261290A (en) * | 2019-07-04 | 2019-09-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of experimental rig for renovating screening electrodes fouling |
| CN110713278A (en) * | 2019-10-25 | 2020-01-21 | 上海华力微电子有限公司 | Water circulation device and water circulation system |
| CN110848835A (en) * | 2018-08-21 | 2020-02-28 | 江苏美力格环境科技有限公司 | Energy storage and flow increasing auxiliary device for air energy cooling and heating engineering |
| CN110879541A (en) * | 2019-09-10 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Transient offline simulation system of high-voltage direct-current valve cooling system |
| CN111948128A (en) * | 2020-08-05 | 2020-11-17 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Corrosion test platform for radiator of cold water system in converter valve |
| CN114112798A (en) * | 2021-11-25 | 2022-03-01 | 上海交通大学 | Trisodium phosphate dissolution rate experiment system |
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| CN108495529A (en) * | 2018-04-17 | 2018-09-04 | 全球能源互联网研究院有限公司 | A kind of converter valve cooling water channel |
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| CN108614010B (en) * | 2018-05-25 | 2020-06-30 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Scaling test detection system and method for voltage-sharing electrode of high-voltage direct-current converter valve |
| CN110848835A (en) * | 2018-08-21 | 2020-02-28 | 江苏美力格环境科技有限公司 | Energy storage and flow increasing auxiliary device for air energy cooling and heating engineering |
| CN109319972A (en) * | 2018-08-30 | 2019-02-12 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of outer cold water conductivity automatic control system of valve cooling system |
| CN110261099A (en) * | 2019-06-20 | 2019-09-20 | 江苏亿阀股份有限公司 | A kind of Subzero valve intercooling cycle experimental system |
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| CN110261290A (en) * | 2019-07-04 | 2019-09-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of experimental rig for renovating screening electrodes fouling |
| CN110879541A (en) * | 2019-09-10 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Transient offline simulation system of high-voltage direct-current valve cooling system |
| CN110879541B (en) * | 2019-09-10 | 2020-11-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Transient offline simulation system of high-voltage direct-current valve cooling system |
| CN110713278A (en) * | 2019-10-25 | 2020-01-21 | 上海华力微电子有限公司 | Water circulation device and water circulation system |
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| CN114112798A (en) * | 2021-11-25 | 2022-03-01 | 上海交通大学 | Trisodium phosphate dissolution rate experiment system |
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