CN206596322U - A kind of extra-high voltage carborundum converter valve cooling system - Google Patents
A kind of extra-high voltage carborundum converter valve cooling system Download PDFInfo
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- CN206596322U CN206596322U CN201621466812.6U CN201621466812U CN206596322U CN 206596322 U CN206596322 U CN 206596322U CN 201621466812 U CN201621466812 U CN 201621466812U CN 206596322 U CN206596322 U CN 206596322U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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Classifications
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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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Abstract
The utility model discloses a kind of extra-high voltage carborundum converter valve cooling system, the extra-high voltage carborundum converter valve includes：The carborundum double valve being made up of carborundum 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.The utility model provide cooling system voltage endurance capability it is strong, simple in construction, operational reliability is high and cost is low, cooling effectiveness is high, accommodative ability of environment is strong, equipment runs safe, easy to maintenance, 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, whole system is easy to maintenance from into independent self-circulation system.
Description
Technical field
The utility model belongs to extra-high voltage direct-current transmission converter valve field in power electronics, in particular to a kind of extra-high voltage
Carborundum 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 beyond 2,000 kilometers
Advanced technology of transmission of electricity, with transmission line capability is big, distance is remote, efficiency high, loss is low, take up an area few advantage, in transregional power transmission side
Face is played an important role always.
Converter valve is the nucleus equipment of direct current transportation, and the core parts of current converter valve are IGCTs, 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, and the thyristor valve of material will based on semiconductor silicon
Produce huge power attenuation.Moreover, the electric thyristor switch performance based on silicon device is with its structure design and manufacture
Improving for technique and the theoretical limit determined by material property close to it, continue to improve and improve thyristor converter by silicon device
The systematic function 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 cooling, oil cooling water cooling mode till now
Transformation, for air cooling, oil cooling, the thermal conductivity factor highest of water, specific heat capacity is maximum, and heat convection ability is most strong, but by
Will 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 is present that cooling effectiveness 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, the cooling requirement of silicon carbide thyristor converter valve can not be met.
Phase cooling is as new, the efficient type of cooling of one kind, but existing research mainly lays particular emphasis on generator skill
Art field, power tube and GTO inverters field, almost do not turn cold mutually 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 crucial, it is necessary to further investigate Phase cooling medium of Phase cooling technology
Heatflow characteristics, electrical insulating property, material corrosive properties and environment friendly etc..
Utility model content
The problem of being existed based on above-mentioned extra-high voltage direct-current transmission converter valve and its cooling system, the utility model proposes one
Plant extra-high voltage carborundum converter valve cooling system.
The utility model uses following technical proposals：
A kind of extra-high voltage carborundum converter valve cooling system, it is characterised in that the extra-high voltage carborundum converter valve includes：
The carborundum double valve being made up of carborundum 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 pump and secondary cooling medium back flow pipe.
Further, the circulating pump is situated between located at the secondary cooling between the secondary cooling apparatus and the condenser
On matter export pipeline；
The secondary cooling medium back flow pipe of the secondary cooling apparatus is connected with the cooling medium entrance of the condenser.
Further, the carborundum converter valve includes：Silicon carbide thyristor, the both sides located at the silicon carbide thyristor
Radiator, the radiator being correspondingly arranged with damping resistance, silicon carbide whisker respectively vertically on the outside of the radiator
Brake tube press-loading apparatus and the vertical parallel saturable reactor being located in the press-loading apparatus on the outside of a press-loading apparatus；
The two ends of the radiator are provided with cooling medium inlet and outlet.
Further, cooling down the heat exchange unit of the radiator includes：Cooling medium outlet stool, cooling medium outlet converge
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 silicon carbide thyristor includes：Triggering and monitoring system TTM, IGCT, damping capacitor, damping
Resistance, direct current equalizing resistance and take can resistance.
Further, the circulating pump includes：Pump core in pump case and, located at the top pump valve of the pump case, institute
The top of pump case is stated provided with the air valve for air in release cycle pump.
Further, the circulating pump includes：Controller and sensor, the sensor are located in circulating pump, with control
Device is electrically connected；
The air valve is electrically connected with the controller, and the controller controls the folding of air valve.
Further, the cooling medium primary outlet pipe is provided with primary outlet tube valve, and the import collecting pipe is provided with
Import is confluxed tube valve.
Further, the secondary cooling media outlet pipe is provided with valve, the secondary cooling medium back flow Guan Shangshe
There is import tube valve.
Compared with immediate prior art, the utility model has the advantages that：
1st, voltage endurance capability is strong, simple in construction, operational reliability is high and cost is low, and silicon carbide thyristor has energy gap
Greatly, the advantages of breakdown field strength height, saturation carrier drift speed height, fast working frequency, high temperature resistant and high thermal conductivity, by carbon
SiClx thyristor application not only can largely reduce the component numbers such as IGCT, simplification and change to extra-high voltage direct-current transmission converter valve
Valve arrangement is flowed, converter valve operational reliability, reduction converter valve loss is also remarkably improved, saves the energy.
2nd, cooling effectiveness height, accommodative ability of environment are strong, and Phase cooling system (primary cooling system) utilizes cooling medium phase
The latent heat of vaporization during change, heat exchanger effectiveness is high, and silicon carbide thyristor, damping resistance and saturable reactor etc. can be effectively ensured
Key componentses temperature rise is low and temperature is uniform, no local hot spot, because primary cooling system and secondary cooling system are to pass through
Condenser indirect heat exchange, Phase cooling medium is not contacted directly with secondary cooling water, and primary cooling system can be not only effectively ensured
Reliability of operation, also can improve secondary cold using cooling mediums such as water+ethylene glycol or nano-fluids according to environmental requirement
But the low temperature resistivity of system, accommodative ability of environment is strong.
3rd, equipment runs safe, easy to maintenance, good economy performance, and Phase cooling medium has good insulation properties under high voltages
Can, it is nontoxic, non-combustible, viscosity it is low, have good heat endurance, chemical stability and arc extinguishing ability, gone during anhydrous cooling
The material consumptions such as ion exchange resin, and Phase cooling medium circulation power is by the component heat waste such as silicon carbide thyristor, damping resistance
Consumption is provided, and is not required to additionaling power, and whole system is easy to maintenance from into independent self-circulation system.
Brief description of the drawings
Fig. 1 is carborundum converter valve thyristor level electrical schematic diagram；
Fig. 2 is carborundum converter valve structure chart；
Fig. 3 is the utility model structure principle chart；
Fig. 4 is that Phase cooling system damping resistance position illustrates figure；
Fig. 5 is circulating pump structural representation of the present utility model；
Wherein, 1- silicon carbide thyristors, 2- radiators, 3- damping resistances, 4- saturable reactors, 5- cooling mediums outlet branch
Pipe, 6- cooling mediums outlet collecting pipe, 7- cooling medium primary outlet pipes, 8- condensers, the main inlet tube of 9- cooling mediums, 10- enters
Mouth collecting pipe, 11- entrance branch, 12- silicon carbide thyristor press-loading apparatus, 13- carborundum converter valves, 14- secondary cooling media
Outlet, 15- secondary cooling apparatus, 16- circulating pumps, 17- secondary cooling medium back flow pipes, 18- carborundum double valves, 19- master
Tube valve is exported, 20- imports are confluxed tube valve, 21- backflow tube valves, 22- outlets tube valve.
Embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.For make the utility model embodiment purpose,
Technical scheme and advantage are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, to the utility model embodiment
In technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the utility model,
Rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creation
Property work under the premise of all other embodiment for being obtained, belong to the scope of the utility model protection.
It is that a kind of many weather conditions run extra-high voltage carborundum converter valve and its cooling system by carborundum two as shown in Figure 3
Weight valve, Phase cooling system (primary cooling system) and secondary cooling system composition；Carborundum change of current valve module 13 is by carborundum
IGCT 1, radiator 2, damping resistance 3, saturable reactor 4 and silicon carbide thyristor press-loading apparatus 12 are constituted, each IGCT
Level includes IGCT, damping capacitor, damping resistance, direct current equalizing resistance, take can resistance and TTM.Four structures of change of current valve module 13
Into a carborundum double valve 18；Phase cooling system (primary cooling system) is by going out gas branch pipe 5, outlet collecting pipe 6, main outlet
Pipe 7, condenser 8, main feed tube 9, feed liquor collecting pipe 10, feed liquor branch pipe 11 are constituted；Secondary cooling system is by secondary cooling medium
Outlet 14, secondary cooling apparatus 15, water circulating pump 16 and secondary cooling medium back flow pipe 17 are constituted.
Silicon carbide thyristor 1 is compressed by two module radiators 2 or so, due to the air insulation spacing of electrical design, Pyatyi carbon
SiClx IGCT 1 and radiator 2 are connected, and are compressed by silicon carbide thyristor press-loading apparatus 11；Damping resistance 3 is arranged in radiator
Inside 2 surfaces or insertion radiator 2；Condenser 8 is arranged in above carborundum double valve, and condenser 8 passes through main escape pipe 7 and master
Feed tube 9 and the composition Phase cooling flow of media of converter valve components 13 loop.
Radiator 2 is used to cool down silicon carbide thyristor 1, damping resistance 3, direct current equalizing resistance and takes the heating member such as energy resistance
There is flow passage structure inside part, radiator 2, radiator 2 has positioning hole with the contact surface center of silicon carbide thyristor 1, radiates
Device 2 has an import and one outlet, and import is located at the lower section of radiator 2, and outlet is located at the top of radiator 2；Radiator outlet leads to
Going out gas branch pipe 5, outlet collecting pipe 6 and main escape pipe 7 is crossed to be connected with the import of condenser 8；Heat sink inlet by main feed tube 9,
Feed liquor collecting pipe 10 and feed liquor branch pipe 11 are connected with condenser 8.
Damping resistance 3 be cylinder or rectangular parallelepiped structure, as shown in Fig. 2 damping resistance 3 be attached to the surface of radiator 2 or
Insert inside radiator 2, damping resistance 3 is cooled down indirectly by the internal cooling medium phase transformation of radiator 2.
Condenser 8 is arranged in above carborundum double valve, there is pipeline needed for the condensation of high temperature gas-liquid mixture inside condenser 8
Structure；There is condenser 8 variable volume necessary to variable volume voltage stabilizing function, condenser 8 to be boiling cooling under most harsh conditions
Volume shared by the steam gas of generation with it is non-loaded when cooling medium liquid by minimum temperature to maximum temperature (boiling point) change
Produced volumetric expansion sum, then part space remaining during liquid filling is subtracted, the top of condenser 8 is provided with air bleeding valve.
Secondary cooling apparatus 15 is located at outside the place valve Room of carborundum double valve 18, and secondary cooling apparatus 15 is cooled down by enclosed
Tower or closed cooling tower series connection aerial cooler composition, the high temperature gas-liquid mixture of condenser 8 condensation release heat by with
Secondary cooling water indirect heat exchange, is flowed after the rise of secondary cooling coolant-temperature gage by secondary cooling water outlet pipe 14, by water circulating pump
Enter after 16 pressurizations and heat is scattered in ambient temperature in secondary cooling apparatus 18, the secondary cooling water after being cooled passes through
Secondary cooling medium back flow pipe 17 is entered in condenser 8, forms secondary cooling system loop.
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 as case study on implementation by ten grades of silicon carbide thyristors 1 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, it would however also be possible to employ the cooling medium such as water+ethylene glycol or nano-fluid.
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 the impurity of aluminium and content≤1%.
It is the structure chart of circulating pump as shown in Figure 5, including：Pump core 161 in pump case 163 and, located at the pump case
163 top pump valve 162, the top of the pump case 163, which is provided with, is used for the air valve 164 of air in release cycle pump.
Circulating pump 16 also 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 the folding of air valve 164 to deflate.
The external rubber tube of the air valve 164, realizes manual folding, is deflated.
Cooling medium primary outlet pipe 7 is provided with primary outlet tube valve 19, and the import collecting pipe 10 confluxes provided with import
Tube valve 20.Secondary cooling media outlet pipe 14 is provided with backflow tube valve 21, the secondary cooling medium back flow pipe 17 and set
There is outlet tube valve 22.All valves are all operated pneumatic valves, it is not necessary to additionaling power, are controlled according to the temperature of carborundum 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：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System, although the utility model is described in detail with reference to above-described embodiment, those of ordinary skill in the art should
Understand：Embodiment of the present utility model can still be modified or equivalent substitution, and it is new without departing from this practicality
Any modification of type spirit and scope or equivalent substitution, it all should cover among right of the present utility model.
Claims (9)
1. a kind of extra-high voltage carborundum converter valve cooling system, it is characterised in that the extra-high voltage carborundum converter valve includes：By
The carborundum double valve (18) of carborundum 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 carborundum converter valve cooling system as claimed in claim 1, it is characterised in that
The circulating pump (16) is located at the secondary cooling medium between the secondary cooling apparatus (15) and the condenser (8)
On outlet (14) road；
The secondary cooling medium back flow pipe (17) of the secondary cooling apparatus (15) and the cooling medium entrance of the condenser (8)
It is connected.
3. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 2, it is characterised in that the carborundum is changed
Stream valve (13) includes：Silicon carbide thyristor (1), the radiator (2) located at the both sides of the silicon carbide thyristor (1) and damping
The radiator (2) that resistance (3) is correspondingly arranged, silicon carbide thyristor pressure respectively vertically on the outside of the radiator (2)
Assembling device (12) and the vertical parallel saturable reactor (4) being located in the press-loading apparatus on the outside of a press-loading apparatus；
The two ends of the radiator (2) are provided with cooling medium inlet and outlet.
4. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 3, it is characterised in that the cooling radiating
The heat exchange unit of device (2) includes：Cooling medium outlet stool (5), cooling medium outlet collecting pipe (6), cooling medium primary outlet
Manage (7), the main inlet tube of cooling 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
State primary outlet pipe (7) and enter the condenser (8).
5. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 3, it is characterised in that the silicon carbide whisker
Brake tube (1) includes：Triggering and monitoring system TTM, IGCT, damping capacitor, damping resistance, direct current equalizing resistance and take can electricity
Resistance.
6. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 1, it is characterised in that the circulating pump
(16) include：Pump core (161) in pump case (163) and, located at the top pump valve (162) of the pump case (163), the pump
The top of shell (163), which is provided with, is used for the air valve (164) of air in release cycle pump.
7. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 6, it is characterised 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).
8. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 4, it is characterised in that the cooling medium
Primary outlet pipe (7) is provided with primary outlet tube valve (19), and the import collecting pipe (10) is confluxed tube valve (20) provided with import.
9. a kind of extra-high voltage carborundum converter valve cooling system as claimed in claim 1, it is characterised in that the secondary cooling
Media outlet pipe (14) is provided with valve (21), and the secondary cooling medium back flow pipe (17) is provided with import tube valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466812.6U CN206596322U (en) | 2016-12-29 | 2016-12-29 | A kind of extra-high voltage carborundum converter valve cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466812.6U CN206596322U (en) | 2016-12-29 | 2016-12-29 | A kind of extra-high voltage carborundum converter valve cooling system |
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| CN206596322U true CN206596322U (en) | 2017-10-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260322A (en) * | 2016-12-29 | 2018-07-06 | 全球能源互联网研究院有限公司 | A kind of extra-high voltage silicon carbide converter valve cooling system |
| JP2019146373A (en) * | 2018-02-21 | 2019-08-29 | トヨタ自動車株式会社 | unit |
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2016
- 2016-12-29 CN CN201621466812.6U patent/CN206596322U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260322A (en) * | 2016-12-29 | 2018-07-06 | 全球能源互联网研究院有限公司 | A kind of extra-high voltage silicon carbide converter valve cooling system |
| JP2019146373A (en) * | 2018-02-21 | 2019-08-29 | トヨタ自動車株式会社 | unit |
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