CN204190597U - A kind of cooling system for converter - Google Patents
A kind of cooling system for converter Download PDFInfo
- Publication number
- CN204190597U CN204190597U CN201420602005.7U CN201420602005U CN204190597U CN 204190597 U CN204190597 U CN 204190597U CN 201420602005 U CN201420602005 U CN 201420602005U CN 204190597 U CN204190597 U CN 204190597U
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- CN
- China
- Prior art keywords
- cooling
- current transformer
- working medium
- cooling box
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 87
- 238000009835 boiling Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005183 dynamical system Methods 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000002528 anti-freeze Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000002826 coolant Substances 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a kind of cooling system for converter, the cooling box comprising the heat-producing device IGT module and reactor for placing current transformer and the condenser be arranged at above cooling box, described cooling box is closed structure and inside is filled and is provided with evaporative cooling working medium, is connected with return duct by escape pipe with condenser; The inside of cooling box is used for arranging reactor, and its tank surface is used for the IGBT module that is sticked.Cooling system for converter of the present utility model adopts phase-change heat-exchange, and heat exchange efficiency is high; Dynamical system without spin, without pump self-loopa, self-regulation, self adaptation, safety can be high; Cooling working medium freezing point is low, without the need to considering antifreeze problem, is particularly suitable for the current transformer of field work; Adopt high insulation cooling working medium, nontoxic, do not fire, not quick-fried; Without the need to the purification system of water, device is simple and reliable; Low noise, low-power consumption.This cooling system can improve the power density of current transformer greatly.
Description
Technical field
The utility model relates to a kind of cooling system for converter adopting evaporation cooling technique.
Background technology
Current high-power converter liquid cooling technology generally adopts the closed liquid cooling technology based on heat convection principle, cooling principle as shown in Figure 1, when closed water-cooling system is run, cooling fluid is under the effect of circulating pump, cooling fluid is made to enter the cooling system of current transformer inside by current transformer water inlet, after flowing through current transformer inner cooling system, the heat that current transformer inside produces is taken out of by delivery port, making cooling fluid flow through water wind heat exchanger afterwards again makes itself and external environment condition carry out heat exchange, finally cooling fluid is flowed through current transformer again.Current transformer internal temperature can be made after such circulation to be reduced to the instructions for use of product, to reach the object of heat radiation.
From cooling capacity, above-mentioned liquid cooling system excellent performance.But there is the following defect: (1) cooling system relies on circulating pump to drive, and there is dynamical system, noise is large, the life-span is low; (2) current transformer internal cooling ability relies on the flow velocity of liquid, limits the internal watercourses design of current transformer, is unfavorable for improving current transformer power density; (3) because light water is conducting medium, when high-vol uses, must use pure water or deionized water, need the treater of water, system complex, pure water processor is expensive; (4) placing the current transformer in field to prevent water freezing in winter, need the anti-icing fluid adding ethylene glycol in pure water, prevent water freezing, but ethylene glycol having very strong corrosivity, easily causing the corrosion of hardware, causing life-span and safety problem; (5) cooling system contains the purification system of inside and outside double water circulation system and water, system complex; (6) whole system power consumption is high, is unfavorable for the whole efficiency improving current transformer.
In addition, also have the air-cooled technology adopting fan or blower fan cooling, but according to heat transfer theory, the conductive coefficient of liquid much larger than the conductive coefficient of air, so the effect of liquid cooling obviously will be better than air cooling.
Utility model content
The purpose of this utility model is to provide a kind of cooling system for converter, to solve existing water-cooled or air-cooled technology must configure corresponding dynamical system and complex structure and other problems.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of cooling system for converter, the cooling box comprising the heat-producing device IGT module and reactor for placing current transformer and the condenser be arranged at above cooling box, described cooling box is closed structure and inside is filled and is provided with evaporative cooling working medium, is connected with return duct by escape pipe with condenser; The inside of cooling box is used for arranging reactor, and its tank surface is used for the IGBT module that is sticked.
Described cooling box adopts aluminum alloy material.
The boiling temperature of described evaporative cooling working medium is 55-65 DEG C.
Cooling system for converter of the present utility model adopts phase-change heat-exchange, and heat exchange efficiency is high; Dynamical system without spin, without pump self-loopa, self-regulation, self adaptation, safety can be high; Cooling working medium freezing point is low, without the need to considering antifreeze problem, is particularly suitable for the current transformer of field work; Adopt high insulation cooling working medium, nontoxic, do not fire, not quick-fried; Without the need to the purification system of water, device is simple and reliable; Low noise, low-power consumption.This cooling system can improve the power density of current transformer greatly.
Accompanying drawing explanation
Fig. 1 is current transformer closed liquid cooling system theory diagram;
Fig. 2 is current transformer cooling heat radiation system structural representation;
Fig. 3 is IGBT module scheme of installation;
Fig. 4 is reactor scheme of installation.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
According to heat transfer theory, the conductive coefficient of liquid much larger than the conductive coefficient of air, so the effect of liquid cooling obviously will be better than air cooling.But no matter be liquid cooling or air cooling, say in fact it is all utilize the single-phase convection heat exchange of fluid to realize cooling from its cooling.
Evaporation cooling technique utilizes the latent heat of vaporization of low boiling point working medium to realize the exchange heat with the object that is cooled, the heat absorption capacity of its unit mass coolant, much larger than traditional specific heat heat exchange mode (as air cooling, hydrogen-cooled, water-cooled and oil cooling mode), is particularly suitable for solving serious, higher to the cooling system requirement current transformer cooling problem of heating.The utility model, in conjunction with the evaporation cooling technique of low-boiling point liquid, proposes a kind of novel current transformer cooling heat-exchanging system.
Be illustrated in figure 2 the utility model cooling system for converter example structure schematic diagram, as seen from the figure, the cooling box 1 that this system comprises heat-producing device IGT module and reactor for placing current transformer and the condenser 2 be arranged at above cooling box, cooling box is closed structure and inside is filled and is provided with evaporative cooling working medium, is connected with return duct 4 by escape pipe 3 with condenser.Wherein, cooling box 1 is positioned at current transformer inside, and condenser 2 is positioned over current transformer outside as cooling twice equipment, and condenser height is higher than cooling cabinet, utilizes gravity principle to realize steam-condensate circulating.
IGBT module adopts surface to stick the outer surface that mode is fixed on cooling box, as shown in Figure 3; Reactor adopts upper and lower vertical disposition to be immersed in the evaporative cooling working medium of cooling box, as shown in Figure 4.
The present embodiment cooling box adopts the aluminum alloy material that conductive coefficient is high, and be generally less than the requirement of 80 DEG C according to IGBT shell temperature, the boiling temperature of cooling working medium can be selected between 55-65 DEG C.
Operation principle of the present utility model is as follows: when current transformer normally runs, the heat that reactor and IGBT module produce passes to the cooling working medium in device case by the mode of heat conduction, cooling working medium heats up, when reaching boiling temperature, working medium vaporization boiling, takes away heat.The working medium of vaporization enters condenser along escape pipe, after being condensed into liquid phase working fluid, due to the effect of gravity, is back in device case again along liquid pipe, starts next circulation.Whole cooling system is self-loopa, without the need to outer buttons rotatory force parts, so ensure that reliability, reduces power consumption simultaneously.
This cooling system for converter adopts moderate boiling point and meets the coolant cooling medium the most of environmental requirement, be applicable to the cooling of high heat density heater, have the advantages that cooling effectiveness is high, coolant temperature is even, reliability is high, each power electronic device can be arranged on the cooling platform of identical temperature, simultaneously for the miniaturization of cooling device creates advantage.
Above embodiment only understands core concept of the present utility model for helping; the utility model can not be limited with this; for those skilled in the art; every according to thought of the present utility model; the utility model is modified or equivalent replacement; any change done in specific embodiments and applications, all should be included within protection range of the present utility model.
Claims (3)
1. a cooling system for converter, it is characterized in that: the cooling box comprising the heat-producing device IGT module and reactor for placing current transformer and the condenser be arranged at above cooling box, described cooling box is closed structure and inside is filled and is provided with evaporative cooling working medium, is connected with return duct by escape pipe with condenser; The inside of cooling box is used for arranging reactor, and its tank surface is used for the IGBT module that is sticked.
2. cooling system for converter according to claim 1, is characterized in that: described cooling box adopts aluminum alloy material.
3. cooling system for converter according to claim 1 and 2, is characterized in that: the boiling temperature of described evaporative cooling working medium is 55-65 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602005.7U CN204190597U (en) | 2014-10-17 | 2014-10-17 | A kind of cooling system for converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602005.7U CN204190597U (en) | 2014-10-17 | 2014-10-17 | A kind of cooling system for converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190597U true CN204190597U (en) | 2015-03-04 |
Family
ID=52622567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420602005.7U Expired - Lifetime CN204190597U (en) | 2014-10-17 | 2014-10-17 | A kind of cooling system for converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935184A (en) * | 2015-07-02 | 2015-09-23 | 中国科学院电工研究所 | Evaporative cooling system of high-power rectifier device |
| CN109520206A (en) * | 2018-11-30 | 2019-03-26 | 张国华 | A kind of multifunctional heat dissipation device |
-
2014
- 2014-10-17 CN CN201420602005.7U patent/CN204190597U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935184A (en) * | 2015-07-02 | 2015-09-23 | 中国科学院电工研究所 | Evaporative cooling system of high-power rectifier device |
| CN109520206A (en) * | 2018-11-30 | 2019-03-26 | 张国华 | A kind of multifunctional heat dissipation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221027 Address after: No. 4138, Sunshine Avenue, Xuchang Economic Development Zone, Henan 461000 Patentee after: Henan Xuji Power Electronics Co.,Ltd. Patentee after: XJ ELECTRIC Co.,Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: XJ ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |