CN108260322A - A kind of extra-high voltage silicon carbide converter valve cooling system - Google Patents
A kind of extra-high voltage silicon carbide converter valve cooling system Download PDFInfo
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- CN108260322A CN108260322A CN201611249946.7A CN201611249946A CN108260322A CN 108260322 A CN108260322 A CN 108260322A CN 201611249946 A CN201611249946 A CN 201611249946A CN 108260322 A CN108260322 A CN 108260322A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Rectifiers (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention provides a kind of extra-high voltage silicon carbide converter valve cooling system, which includes：The silicon carbide double valve being made of silicon carbide converter valve；The cooling system includes：Primary cooling system and secondary cooling system；The primary cooling system includes：Condenser and its set heat-exchanging component；The secondary cooling system includes：Secondary cooling media outlet pipe, secondary cooling apparatus and its set heat exchanger, circulating pump and secondary cooling medium back flow pipe.Cooling system voltage endurance capability provided by the invention is strong, simple in structure, operational reliability is high and at low cost, cooling efficiency is high, accommodative ability of environment is strong, equipment operational safety, easy to maintain, good economy performance, and Phase cooling medium circulation power is lost by component thermals such as silicon carbide thyristor, damping resistances and provided, it is not required to additionaling power, the self-circulation system of whole system self-contained independence, it is easy to maintain.
Description
Technical field
The invention belongs to extra-high voltage direct-current transmission converter valve field in power electronics, in particular to a kind of extra-high voltage carbonization
Silicon converter valve cooling system.
Background technology
Extra-high voltage direct-current transmission be it is currently the only can be achieved ten thousand MW class electric energy high efficiency are delivered to other than 2,000 kilometers
Advanced technology of transmission of electricity, have transmission line capability it is big, apart from it is remote, efficient, loss is low, takes up an area few advantage, in transregional power transmission side
Face plays an important role always.
Converter valve is the core equipment of direct current transportation, and the core element of converter valve is thyristor at present, due to converter valve work
As when the voltage that bears be up to hundreds of kilovolts, electric current is up to several kilo-amperes, will using the thyristor valve of semiconductor silicon as basic material
Generate huge power attenuation.Moreover, the electric thyristor switch performance based on silicon device is with its structure design and manufacture
Improving for technique and close to the theoretical limit that it is determined by material property, continue to improve by silicon device and raising thyristor converter
The system performance potentiality of valve gear are extremely limited.
In addition, the type of cooling experience of extra-high voltage direct-current transmission converter valve is by air-cooled, oil cooling water cooling mode till now
Transformation, for relatively air-cooled, oil cooling, the thermal conductivity factor highest of water, specific heat capacity is maximum, and heat convection ability is most strong, however by
To be far above the silicon wafer brake tube applied now, condition in silicon carbide thyristor voltage endurance capability height, internal thermal conductivity factor and power density
And existing water cooling mode there are cooling efficiency is low, water treatment system is complicated, temperature distributing disproportionation, galvano-cautery fouling and leakage
A series of problems, such as caused failure of insulation, has been unable to meet the cooling requirement of silicon carbide thyristor converter valve.
Phase cooling is as a kind of novel, efficient type of cooling, however existing research mainly lays particular emphasis on generator skill
Art field, power tube and GTO inverters field mutually turn cold almost without to the application of extra-high voltage direct-current transmission change of current valve gear
But the research of aspect, the selection of Phase cooling medium is the key that Phase cooling technology, needs to further investigate Phase cooling medium
Heatflow characteristics, electrical insulating property, material corrosive properties and environment friendly etc..
Accordingly, it is desirable to provide a kind of technical solution promotes the rated current of thyristor, satisfaction increasingly increases transmission line capability
Use demand.
Invention content
For overcome the deficiencies in the prior art, the present invention proposes a kind of extra-high voltage silicon carbide converter valve cooling system.
A kind of extra-high voltage silicon carbide converter valve cooling system, which is characterized in that the extra-high voltage silicon carbide converter valve includes：
The silicon carbide double valve being made of silicon carbide converter valve；
The cooling system includes：Primary cooling system and secondary cooling system；
The primary cooling system includes：Condenser and its set heat-exchanging component；
The secondary cooling system includes：Secondary cooling media outlet pipe, secondary cooling apparatus and its set heat exchanger follow
Ring pumps and secondary cooling medium back flow pipe.
Further, the secondary cooling that the circulating pump is set between the secondary cooling apparatus and the condenser is situated between
On matter export pipeline；
The return duct of the secondary cooling medium of the secondary cooling apparatus is connected with the cooling medium inlet of the condenser.
Further, the silicon carbide converter valve includes：Silicon carbide thyristor, set on the both sides of the silicon carbide thyristor
Radiator, the radiator being correspondingly arranged with damping resistance, the silicon carbide whisker that is set on vertically respectively on the outside of the radiator
Brake tube press-loading apparatus and the vertical parallel saturable reactor on the outside of a press-loading apparatus in the press-loading apparatus；
The both ends of the radiator (2) are equipped with cooling medium inlet and outlet.
Further, the contacting surface between the silicon carbide thyristor and the radiator is coated with high-efficiency heat conduction material.
Further, the heat exchange unit for cooling down the radiator includes：Cool down media outlet branch pipe, cooling media outlet converges
Flow tube, cooling medium primary outlet pipe, the main inlet tube of cooling medium, import collecting pipe and entrance branch；
The cooling medium goes out after radiator discharge through the outlet stool, the outlet collecting pipe, the master
Mouth pipe enters the condenser.
Further, the cooling medium is the mixture or nano-fluid of water, water and ethylene glycol.
Further, the silicon carbide thyristor includes：Triggering and monitoring system TTM, thyristor, damping capacitor, damping
Resistance, direct current equalizing resistance and take can resistance.
Further, the contacting surface between the silicon carbide thyristor and the radiator is coated with following groups counted in parts by weight
Heat Conduction Material made from part：10-20 parts of paraffin oil, 3-8 parts of stearic acid, 3-7 parts of zinc dibutyl dithiocarbamate, natural rubber
15-25 parts of glue, 7-11 parts of dimethyl silicone polymer are plasticized 4-8 parts of softening agent, 20-30 parts of EP rubbers, organosilicon siloxanes 8-
12 parts, 1-3 parts of accelerating agent.
Further, the following components of the material of the radiator by mass percentage are made：
Silicon 2~6%, iron 1~3%, copper 5~8%, titanium 1~1.5%, zinc 2~5%, chromium 0.1~0.5%, cerium 0.1~
0.2%；Surplus is aluminium and the impurity of content≤1%.
Further, the circulating pump includes：
Pump core in pump case and, set on the top pump valve of the pump case, the top of the pump case is equipped with to discharge
The air valve of air in circulating pump.
Further, the circulating pump includes：Controller and sensor, the sensor is located in circulating pump, with control
Device is electrically connected；
The air valve is electrically connected with the controller, the folding of the controller control air valve.
Further, the external rubber tube of the air valve realizes manual folding, deflates.
Further, the cooling medium primary outlet pipe is equipped with primary outlet tube valve, and the import collecting pipe is equipped with
Import confluence tube valve；
Set on the first valve driving machine control primary outlet tube valve of the condenser and opening for import confluence tube valve
It closes.
Further, the secondary cooling media outlet pipe is equipped with valve, the secondary cooling medium inlet Guan Shangshe
There is import tube valve.
Compared with the latest prior art, technical solution provided by the invention has the advantages that：
1st, voltage endurance capability is strong, simple in structure, operational reliability is high and at low cost, and silicon carbide thyristor has energy gap
Greatly, the advantages that breakdown field strength is high, saturation carrier drift speed is high, working frequency is fast, high temperature resistant and thermal conductivity are high, by carbon
SiClx thyristor application can not only largely reduce the component numbers such as thyristor, simplification is changed to extra-high voltage direct-current transmission converter valve
Valve arrangement is flowed, converter valve operational reliability is also remarkably improved, reduces converter valve loss, it is energy saving.
2nd, cooling efficiency is high, accommodative ability of environment is strong, and primary cooling system utilizes the vaporization cooled down in medium phase transition process
Latent heat, heat exchanger effectiveness is high, and the key components such as silicon carbide thyristor, damping resistance and saturable reactor Wen Sheng can be effectively ensured
Low and temperature is uniform, no local hot spot, due to primary cooling system and secondary cooling system be by condenser indirect heat exchange,
Phase cooling medium is not in direct contact with secondary cooling water, and primary cooling system reliability of operation can not only be effectively ensured,
Can medium be cooled down to improve the low-temperature resistance of secondary cooling system using water+ethylene glycol or nano-fluid etc. according to environmental requirement
Property, accommodative ability of environment is strong.
3rd, equipment operational safety, easy to maintain, good economy performance, Phase cooling medium have good insulation properties under high voltages
Energy, nontoxic, non-combustible, viscosity is low, has good thermal stability, chemical stability and arc extinguishing ability, is gone during anhydrous cooling
The material consumptions such as ion exchange resin, and Phase cooling medium circulation power is by the components heat waste such as silicon carbide thyristor, damping resistance
Consumption provides, and is not required to additionaling power, the self-circulation system of whole system self-contained independence is easy to maintain.
4th, in cooling procedure, if temperature is not high, it is only necessary to once be cooled down；If primary cooling system when the temperature is excessively high
It is acted on simultaneously with secondary cooling system, cooling efficiency is high, energy saving.All valves are all operated pneumatic valves, do not need to be additional dynamic
Power, according to the temperature of silicon carbide converter valve come the opening and closing of control valve.
Description of the drawings
Fig. 1 is silicon carbide converter valve thyristor level electrical schematic diagram；
Fig. 2 is silicon carbide converter valve structure chart；
Fig. 3 is structure principle chart of the present invention；
Fig. 4 is Phase cooling system damping resistance position definition graph；
Fig. 5 is the circulating pump structure diagram of the present invention；
Wherein, 1- silicon carbide thyristors, 2- radiators, 3- damping resistances, 4- saturable reactors, 5- cooling media outlet branch
Pipe, 6- cooling media outlet collecting pipe, 7- cooling medium primary outlet pipe, 8- condensers, 9- cooling the main inlet tube of medium, 10- into
Mouth collecting pipe, 11- entrance branch, 12- silicon carbide thyristor press-loading apparatus, 13- silicon carbide converter valves, 14- secondary cooling media
Return duct, 15- secondary cooling apparatus, 16- circulating pumps, 17- secondary cooling media outlet pipes, 18- silicon carbide double valves, 19- master
Export tube valve, 20- imports confluence tube valve, 21- reflux tube valves, 22- outlets tube valve.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.To make purpose, the technical solution of the embodiment of the present invention
It is clearer with advantage, below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out
It clearly and completely describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without making creative work it is all its
Its embodiment, shall fall within the protection scope of the present invention.
It is a kind of more weather conditions operation extra-high voltage silicon carbide converter valves and its cooling system as shown in Figure 3, by silicon carbide
Double valve, primary cooling system and secondary cooling system composition；Silicon carbide change current valve module 13 is by silicon carbide thyristor 1, heat dissipation
Device 2, damping resistance 3, saturable reactor 4 and silicon carbide thyristor press-loading apparatus 12 form (as shown in Figure 2), each thyristor grade
Including thyristor, damping capacitor, damping resistance, direct current equalizing resistance, take energy resistance and TTM (as shown in Figure 1).Four converter valves
Module 13 forms a silicon carbide double valve 18；Primary cooling system is by going out gas branch pipe 5, outlet collecting pipe 6, main escape pipe 7, cold
Condenser 8, main inlet tube 9, feed liquor collecting pipe 10, feed liquor branch pipe 11 form；Secondary cooling system is by secondary cooling medium return pipe
14th, secondary cooling apparatus 15, water circulating pump 16 and secondary cooling medium water inlet pipe 17 form.
Silicon carbide thyristor 1 is by two module radiators, 2 or so compression, due to the air insulation spacing of electrical design, Pyatyi carbon
SiClx thyristor 1 and radiator 2 are connected, and are compressed by silicon carbide thyristor press-loading apparatus 11；Damping resistance 3 is arranged in radiator
2 surfaces are inserted into inside radiator 2；Condenser 8 is arranged in above silicon carbide double valve, and condenser 8 passes through main escape pipe 7 and master
Inlet tube 9 forms Phase cooling flow of media circuit with converter valve components 13.
Radiator 2 is used to cool down silicon carbide thyristor 1, damping resistance 3, direct current equalizing resistance and takes the fever member such as energy resistance
Part has flow passage structure inside radiator 2, and there are location hole, heat dissipations with 1 contact surface center of silicon carbide thyristor for radiator 2
For device 2 there are one import and one outlet, import is located at 2 lower section of radiator, and outlet is located at 2 top of radiator；Radiator outlet leads to
Going out gas branch pipe 5, outlet collecting pipe 6 and main escape pipe 7 is crossed to connect with 8 import of condenser；Heat sink inlet by main inlet tube 9,
Feed liquor collecting pipe 10 and feed liquor branch pipe 11 are connect with condenser 8.
Damping resistance 3 be cylinder or rectangular parallelepiped structure, as shown in figure 4, damping resistance 3 be attached to 2 surface of radiator or
It is inserted into inside radiator 2, damping resistance 3 is cooled down indirectly by 2 inside cooling medium phase transformation of radiator.
Condenser 8 is arranged in above silicon carbide double valve, there is pipeline needed for the condensation of high temperature gas-liquid mixture inside condenser 8
Structure；Condenser 8 has variable volume voltage stabilizing function, and variable volume necessary to condenser 8 is cooling of boiling under most harsh conditions
Volume shared by the steam gas of generation with it is non-loaded when cooling media fluid by minimum temperature to maximum temperature (boiling point) variation
The sum of generated volume expansion, then part space remaining during liquid filling is subtracted, 8 top of condenser is equipped with air bleeding valve.
Secondary cooling apparatus 15 is located at outside the 18 place valve Room of silicon carbide double valve, and secondary cooling apparatus 15 is cooled down by enclosed
Tower or closed cooling tower series connection aerial cooler composition, 8 high temperature gas-liquid mixture of condenser condensation release heat by with
Secondary cooling water indirect heat exchange is flowed after the raising of secondary cooling coolant-temperature gage by secondary cooling water return pipe 14, by water circulating pump
Enter in secondary cooling apparatus 18 after 16 pressurizations and heat is scattered in ambient temperature, the secondary cooling water after being cooled passes through
Secondary cooling medium water inlet pipe 17 is entered in condenser 8, forms secondary cooling system circuit.
The following components of secondary cooling apparatus 15 by mass percentage are made：
Chromium≤0.04%, zirconium 0.08~0.15%, zinc 5.7~6.7%, silicon≤0.12%, iron 0.000~0.150%, manganese
≤ 0.10%, magnesium 1.9~2.6%, titanium≤0.06%, copper 2.0~2.6%；Surplus is aluminium.
Converter valve single valve is connected by ten grades of silicon carbide thyristors 1 as case study on implementation in this patent, is counted by silicon carbide thyristor 1
Structure change caused by amount adjustment, also within the scope of this patent；Secondary cooling medium is also implementation case using water in this patent
Example can also use water+ethylene glycol or nano-fluid etc. to cool down medium.
The following components of the material of radiator 2 by mass percentage are made：
Silicon 2~6%, iron 1~3%, copper 5~8%, titanium 1~1.5%, zinc 2~5%, chromium 0.1~0.5%, cerium 0.1~
0.2%；Surplus is aluminium and the impurity of content≤1%.
It is the structure chart of circulating pump as shown in Figure 5, including：Pump core 161 in pump case 163 and, set on the pump case
163 top pump valve 162, the top of the pump case 163 are equipped with for the air valve 164 of air in release cycle pump.
Circulating pump 16 further includes：Controller and sensor, the sensor are located in circulating pump, are electrically connected with the controller；
The air valve 164 is electrically connected with the controller, and the controller can control 164 folding of air valve to deflate.
The 164 external rubber tube of air valve, realizes manual folding, deflates.
It cools down medium primary outlet pipe 7 and is equipped with primary outlet tube valve 19, the import collecting pipe 10 converges equipped with import
Tube valve 20.Secondary cooling medium back flow pipe 14 is equipped with reflux tube valve 21, is set on the secondary cooling media outlet pipe 17
There is outlet tube valve 22.All valves are all operated pneumatic valves, do not need to additionaling power, are controlled according to the temperature of silicon carbide converter valve
The opening and closing of valve processed.
The following components of the material of all pipelines by mass percentage are made：
Carbon≤0.21%, manganese 0.30~0.60%, phosphorus 0.045~0.080%, sulphur≤0.030%；Surplus is iron.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Pipe is described in detail the present invention with reference to above-described embodiment, those of ordinary skills in the art should understand that：Still
The specific embodiment of the present invention can be modified or replaced equivalently, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement, are intended to be within the scope of the claims of the invention.
Claims (14)
1. a kind of extra-high voltage silicon carbide converter valve cooling system, which is characterized in that the extra-high voltage silicon carbide converter valve includes：By
The silicon carbide double valve (18) of silicon carbide converter valve (13) composition；
The cooling system includes：Primary cooling system and secondary cooling system；
The primary cooling system includes：Condenser (8) and its set heat-exchanging component；
The secondary cooling system includes：Secondary cooling media outlet pipe (14), secondary cooling apparatus (15) and its set heat exchange
Device, circulating pump (16) and secondary cooling medium back flow pipe (17).
2. a kind of extra-high voltage silicon carbide converter valve cooling system as described in claim 1, which is characterized in that
The secondary cooling medium of the circulating pump (16) between the secondary cooling apparatus (15) and the condenser (8)
Outlet (14) road；
The return duct (17) and the cooling medium of the condenser (8) of the secondary cooling medium of the secondary cooling apparatus (15) enter
Mouth is connected.
3. a kind of extra-high voltage silicon carbide converter valve cooling system as described in claim 1, which is characterized in that the silicon carbide changes
Stream valve (13) includes：Silicon carbide thyristor (1), the radiator (2) set on the both sides of the silicon carbide thyristor (1) and damping
The radiator (2) that resistance (3) is correspondingly arranged, the silicon carbide thyristor pressure being set on vertically respectively on the outside of the radiator (2)
Assembling device (12) and the vertical parallel saturable reactor (4) on the outside of a press-loading apparatus in the press-loading apparatus；
The both ends of the radiator (2) are equipped with cooling medium inlet and outlet.
A kind of 4. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 3, which is characterized in that the silicon carbide whisker
Contacting surface between brake tube (1) and the radiator (2) is coated with high-efficiency heat conduction material.
5. a kind of extra-high voltage silicon carbide converter valve cooling system as claimed in claim 4, which is characterized in that cool down the heat dissipation
The heat exchange unit of device (2) includes：Cool down media outlet branch pipe (5), cooling media outlet collecting pipe (6), cooling medium primary outlet
Manage (7), the cooling main inlet tube of medium (9), import collecting pipe (10) and entrance branch (11)；
The cooling medium is after the radiator (2) discharge, through the outlet stool (5), the outlet collecting pipe (6), institute
It states primary outlet pipe (7) and enters the condenser (8).
A kind of 6. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 5, which is characterized in that the cooling medium
Mixture or nano-fluid for water, water and ethylene glycol.
A kind of 7. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 4, which is characterized in that the silicon carbide whisker
Brake tube (1) includes：Triggering and monitoring system TTM, thyristor, damping capacitor, damping resistance, direct current equalizing resistance and take can electricity
Resistance.
A kind of 8. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 7, which is characterized in that the silicon carbide whisker
Contacting surface between brake tube (1) and the radiator (2) is coated with Heat Conduction Material made from the following components counted in parts by weight：Paraffin oil
10-20 parts, 3-8 parts of stearic acid, 3-7 parts of zinc dibutyl dithiocarbamate, 15-25 parts of natural rubber, polydimethylsiloxanes
7-11 parts of alkane is plasticized 4-8 parts of softening agent, 20-30 parts of EP rubbers, 8-12 parts of organosilicon siloxanes, 1-3 parts of accelerating agent.
A kind of 9. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 5, which is characterized in that the radiator
(2) the following components of material by mass percentage are made：
Silicon 2~6%, iron 1~3%, copper 5~8%, titanium 1~1.5%, zinc 2~5%, chromium 0.1~0.5%, cerium 0.1~0.2%；
Surplus is aluminium and the impurity of content≤1%.
A kind of 10. extra-high voltage silicon carbide converter valve cooling system as described in claim 1, which is characterized in that the circulating pump
(16) include：
Pump core (161) in pump case (163) and, set on the top pump valve (162) of the pump case (163), the pump case
(163) top is equipped with for the air valve (164) of air in release cycle pump.
A kind of 11. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 10, which is characterized in that the circulating pump
(16) include：Controller and sensor, the sensor are located in circulating pump, are electrically connected with the controller；
The air valve (164) is electrically connected with the controller, the folding of the controller control air valve (164).
A kind of 12. extra-high voltage silicon carbide converter valve cooling system as claimed in claim 11, which is characterized in that the air valve
(164) external rubber tube realizes manual folding, deflates.
13. a kind of extra-high voltage silicon carbide converter valve cooling system as claimed in claim 5, which is characterized in that the cooling is situated between
Matter primary outlet pipe (7) is equipped with primary outlet tube valve (19), and the import collecting pipe (10) is equipped with import confluence tube valve
(20)。
14. a kind of extra-high voltage silicon carbide converter valve cooling system as described in claim 1, which is characterized in that described secondary cold
But media outlet pipe (14) is equipped with valve (21), and the secondary cooling medium inlet pipe (17) is equipped with import tube valve
(22)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249946.7A CN108260322A (en) | 2016-12-29 | 2016-12-29 | A kind of extra-high voltage silicon carbide converter valve cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249946.7A CN108260322A (en) | 2016-12-29 | 2016-12-29 | A kind of extra-high voltage silicon carbide converter valve cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN108260322A true CN108260322A (en) | 2018-07-06 |
Family
ID=62721837
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611249946.7A Pending CN108260322A (en) | 2016-12-29 | 2016-12-29 | A kind of extra-high voltage silicon carbide converter valve cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111662687A (en) * | 2020-05-25 | 2020-09-15 | 河北冀研能源科学技术研究院有限公司 | Novel cooling medium for high-voltage direct-current transmission converter valve |
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| JP2006169290A (en) * | 2004-12-13 | 2006-06-29 | Asahi Glass Co Ltd | Secondary circulating and cooling system |
| CN1885001A (en) * | 2006-06-28 | 2006-12-27 | 苏州试验仪器总厂 | Evaporating and cooling system of electric vibration testing bench |
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| CN111662687A (en) * | 2020-05-25 | 2020-09-15 | 河北冀研能源科学技术研究院有限公司 | Novel cooling medium for high-voltage direct-current transmission converter valve |
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