CN106653297A - Automatic cooling system of transformer - Google Patents
Automatic cooling system of transformer Download PDFInfo
- Publication number
- CN106653297A CN106653297A CN201610883144.5A CN201610883144A CN106653297A CN 106653297 A CN106653297 A CN 106653297A CN 201610883144 A CN201610883144 A CN 201610883144A CN 106653297 A CN106653297 A CN 106653297A
- Authority
- CN
- China
- Prior art keywords
- transformer
- cooling system
- conduit
- air inlet
- metal heat
- Prior art date
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses an automatic cooling system of a transformer. The automatic cooling system comprises a metal heat conduction block and guide pipes, wherein the metal heat conduction block is in contact with a transformer shell, an air inlet and an exhaust hole are respectively arranged at two sides of the metal heat conduction block, a plurality of capillary pipes are arranged in the metal heat conduction block, two ends of each capillary pipe respectively communicate with the air inlet and the exhaust hole, the air inlet and the exhaust hole are respectively connected with one of the guide pipes, the guide pipe at one side of the exhaust hole is connected with a compressor, the compressor is connected with a cooling device, the cooling device is arranged at a lower layer of a ground surface, and a liquid storage tank is connected with the other end of the cooling device and is connected with the guide pipe at one side wherein the air inlet is located. The cooling system is particularly suitable for a high-capacity transformer, oil immersion is not needed, the temperature of the transformer can be automatically and high-efficiently reduced, and the safety of the transformer is improved.
Description
Technical field
The invention belongs to power system cooling device field, is related to a kind of transformer cooling device, it is specially a kind of to become
Depressor automatic cooling system.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, due to being power equipment, transformer
During operation, the electric energy loss in winding and iron core can produce heat, cause transformer overheated, if heat is dissipated away not in time,
Can then cause transformer insulated damage to cause electric power system fault, or even cause the security incidents such as fire.
At present the cooling method of transformer has various, to small capacity transformer, the ratio phase of external surface area and transformer volume
To larger, more using self cooling mode, heat can be dispersed by radiation and free convection, it is general to adopt for fire preventing
Dry type, without oil immersion.Due to the loss of transformer it is proportional to its volume, so with the increase of transformer capacity, its volume
To be increased with core dimensions cube with loss, and the quadratic power that external surface area is only sized increases, therefore, high-power transformer
Unshakable in one's determination and winding should be immersed in oil.
For high-power transformer, when there is insulation degradation, overheated and shelf depreciation in transformer, transformation
Oil is readily decomposed to gas in device fuel tank, sharply increases pressure in case, causes security incident, simultaneously because the cooling of fuel tank
Can be high not enough, when external environment temperature is higher, transformer easily occur temperature it is too high and damage phenomenon.
The content of the invention
In order to solve the above problems, the present invention discloses a kind of transformer automatic cooling system, and the cooling system is particularly suitable
In high-power transformer, without the need for oil immersion, transformer temperature can be automatically and efficiently reduced, improve transformer safety.
The technical problem to be solved employs the following technical solutions to realize：
Transformer automatic cooling system, including metal heat-conducting block and conduit, the metal heat-conducting block contacts with transformer case,
The metal heat-conducting block is respectively provided on two sides with air inlet and exhaust outlet, and some capillaries, capillary are provided with metal heat-conducting block
Two ends are each connected with air inlet and exhaust outlet respectively, and the air inlet is connected respectively a conduit with exhaust outlet, in exhaust
Mouth side conduit is connected with a compressor, and the compressor connects a cooling device, and the cooling device is arranged on earth's surface
Lower floor, the cooling device other end connects a fluid reservoir, and the fluid reservoir is connected with the conduit of air inlet side.
The compressor is connected with a controller, and the controller is connected with a temperature sensor, the TEMP
Device is on transformer case inwall.
The cooling device includes heat-exchange tube and cooling fin, and the heat-exchange tube includes multiple bend pipes being sequentially connected,
Cooling fin one end is fixed on bend pipe, and the part cooling fin other end is fixed on another bend pipe.
The cooling fin is used to aid in heat-exchange tube to radiate, while connecting the cooling fin of two bend pipes can also fix hot friendship
Change pipe so as to do not allow pliable deformation, improve stability.
The cooling device periphery is provided with a Chain Link Fence, and the Chain Link Fence is arranged on subsurface layer.
Chain Link Fence is used to protect the cooling device of its inside, it is to avoid external force destroys cooling device and caused
Deformation or breakage, improve the security of cooling system.
A gas-liquid separator is also connected with conduit between the compressor and exhaust outlet, for protecting compressor not damaged
It is bad.
Connect an expansion valve at air inlet in the conduit, connect on the conduit between the expansion valve and fluid reservoir
There is a device for drying and filtering.
The metal heat-conducting block, heat-exchange tube and cooling fin are made by copper alloy, with good thermal conductivity, improve heat
Exchange efficiency.The conduit is made up of heat-barrier material, it is to avoid heat exchange is carried out inside and outside conduit.
The present invention compared with prior art, has the following advantages and advantages：
（1）By arranging metal heat-conducting block in transformer case, capillary is set in metal heat-conducting block, and compressor and buried
In the setting of the cooling device of underground, refrigerant circulation refrigeration can be filled in the cooling system, greatly improve transformer Cooling
Efficiency, and cooling oil need not be filled in transformer case, improve transformer safety coefficient；
（2）The compressor and temperature sensor are connected with a controller, can realize in transformer temperature it is automatic
Adjust, transformer temperature is maintained all the time in a rational scope.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is control principle schematic diagram of the present invention；
Mark and corresponding parts title in accompanying drawing：
1- metal heat-conducting blocks, 101- air inlets, 102- exhaust outlets, 2- conduits, 3- transformer cases, 4- compressors, 5- cooling dresses
Put, 501- heat-exchange tubes, 502- cooling fins, 503- bend pipes, 504- Chain Link Fences, 6- fluid reservoirs, 7- controllers, 8- temperature is passed
Sensor, 9- gas-liquid separators, 10- expansion valves, 11- devices for drying and filtering, 12- subsurface layers.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
As shown in Fig. 1～2, transformer automatic cooling system, including metal heat-conducting block 1 and conduit 2, the metal heat-conducting block
1 contacts with transformer case 3, and the metal heat-conducting block 1 is respectively provided on two sides with air inlet 101 and exhaust outlet 102, leads in metal
It is provided with some capillaries in hot block 1, capillary two ends are each connected with air inlet 101 and exhaust outlet 102 respectively, the air inlet
Mouth 101 is connected respectively a conduit 2 with exhaust outlet 102, and in the side conduit 2 of exhaust outlet 102 compressor 4 is connected with, described
Compressor 4 connects a cooling device 5, and the cooling device 5 is arranged on subsurface layer 12, and the other end of the cooling device 5 connects
A fluid reservoir 6 is connect, the fluid reservoir 6 is connected with the conduit 2 of the side of air inlet 101.
The compressor 4 is connected with a controller 7, and the controller 7 is connected with a temperature sensor 8, the temperature
Sensor 8 is on the inwall of transformer case 3.
The cooling device 5 includes heat-exchange tube 501 and cooling fin 502, and the heat-exchange tube 501 connects successively including multiple
The bend pipe 503 for connecing, one end of cooling fin 502 is fixed on bend pipe 503, and the other end of part cooling fin 502 to be fixed on another curved
On pipe 503.
The periphery of the cooling device 5 is provided with a Chain Link Fence 504, and the Chain Link Fence 504 is arranged under earth's surface
Layer 12.
A gas-liquid separator 9 is also connected with conduit 2 between the compressor 4 and exhaust outlet 102.
Connect an expansion valve 10 at air inlet 101 in the conduit 2, between the expansion valve 10 and fluid reservoir 6
A device for drying and filtering 11 is connected with conduit.
The metal heat-conducting block 1, heat-exchange tube 501 and cooling fin 502 are made by copper alloy.The conduit 2 is by heat-insulated
Material is made.
When using, temperature sensor 8 is fixed on into the inwall of transformer case 3, by the metal heat-conducting block on transformer case 3
1 is connected with conduit 2, connects each part after adding cold-producing medium in fluid reservoir 6, then by controller 7 in transformer
Temperature range is set, and transformer brings into operation, when the transformer temperature that temperature sensor 8 is measured is higher than the setting value upper limit
Afterwards, the control of controller 7 compressor 4 starts, and the low temperature liquid refrigerator in fluid reservoir 6 enters back into expansion by gas-liquid separator 9
Valve 10 is vaporized and in the capillary of metal heat-conducting block 1, because cold-producing medium vaporization can absorb big calorimetric, the He of metal heat-conducting block 1
The temperature of transformer case 3 is quickly reduced, therefore transformer temperature is reduced immediately, the row of cold-producing medium Jing exhaust outlets 102 after vaporization
Conduit 2 is entered after going out, drying filter 11 enters the boil down to high temperature and high pressure gas of compressor 4, high temperature and high pressure gas after filtering
Into the heat-exchange tube 501 for being embedded in subsurface layer 12, heat exchange is carried out with ground by heat-exchange tube 501 and heat conduction rib 502, filled
Liquid refrigerant is condensed into after dispersion heat and be further continued for circularly cooling into fluid reservoir 6.
After the transformer temperature that temperature sensor 8 is measured is offline less than setting value, the control compressor 4 of controller 7 is closed,
Stop refrigeration, transformer temperature is maintained in the range of setting.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (8)
1. transformer automatic cooling system, including metal heat-conducting block and conduit, the metal heat-conducting block connects with transformer case
Touch, it is characterised in that：The metal heat-conducting block is respectively provided on two sides with air inlet and exhaust outlet, is provided with some in metal heat-conducting block
Capillary, capillary two ends are each connected with air inlet and exhaust outlet respectively, and the air inlet is connected respectively one with exhaust outlet
Root conduit, in exhaust outlet side, conduit is connected with a compressor, and the compressor connects a cooling device, the cooling dress
Put and be arranged on subsurface layer, the cooling device other end connects a fluid reservoir, the fluid reservoir is led with air inlet side
Pipe is connected.
2. transformer automatic cooling system according to claim 1, it is characterised in that：The compressor and a controller
It is connected, the controller is connected with a temperature sensor, and the temperature sensor is on transformer case inwall.
3. transformer automatic cooling system according to claim 2, it is characterised in that：The cooling device includes heat exchange
Pipe and cooling fin, the heat-exchange tube includes multiple bend pipes being sequentially connected, and cooling fin one end is fixed on bend pipe, and part dissipates
The hot rib other end is fixed on another bend pipe.
4. transformer automatic cooling system according to claim 3, it is characterised in that：The cooling device periphery is provided with one
Individual Chain Link Fence, the Chain Link Fence is arranged on subsurface layer.
5. transformer automatic cooling system according to claim 4, it is characterised in that：Between the compressor and exhaust outlet
A gas-liquid separator is also connected with conduit.
6. transformer automatic cooling system according to claim 5, it is characterised in that：In the conduit at air inlet
One expansion valve of connection, is connected with a device for drying and filtering on the conduit between the expansion valve and fluid reservoir.
7. transformer automatic cooling system according to claim 6, it is characterised in that：The metal heat-conducting block, heat exchange
Pipe and cooling fin are made by copper alloy.
8. transformer automatic cooling system according to claim 7, it is characterised in that：The conduit is by heat-barrier material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883144.5A CN106653297A (en) | 2016-10-10 | 2016-10-10 | Automatic cooling system of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883144.5A CN106653297A (en) | 2016-10-10 | 2016-10-10 | Automatic cooling system of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653297A true CN106653297A (en) | 2017-05-10 |
Family
ID=58854517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610883144.5A Pending CN106653297A (en) | 2016-10-10 | 2016-10-10 | Automatic cooling system of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106653297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054387A (en) * | 2019-06-05 | 2020-12-08 | 二工防爆科技股份有限公司 | High-efficient heat dissipation fire prevention explosion-proof cabinet |
| CN112071568A (en) * | 2020-07-31 | 2020-12-11 | 国家电网有限公司 | Transformer cooling device for electric power field |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2209938A1 (en) * | 1972-03-02 | 1973-09-06 | Pfisterer Elektrotech Karl | TRANSFORMER STATION WITH UNDERFLOOR TRANSFORMER |
| CN103594228A (en) * | 2013-11-27 | 2014-02-19 | 浙江江山特种变压器有限公司 | Efficient cooling transformer |
| CN103779046A (en) * | 2013-12-17 | 2014-05-07 | 浙江金冠特种变压器有限公司 | Transformer cooling device |
| CN204010918U (en) * | 2014-08-25 | 2014-12-10 | 国家电网公司 | A kind of cooling device for dry-type transformer |
| CN104319070A (en) * | 2014-11-12 | 2015-01-28 | 国家电网公司 | Radiating system of main transformer |
| CN105258388A (en) * | 2015-10-30 | 2016-01-20 | 苏州必信空调有限公司 | Energy-saving and efficient refrigerating system |
-
2016
- 2016-10-10 CN CN201610883144.5A patent/CN106653297A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2209938A1 (en) * | 1972-03-02 | 1973-09-06 | Pfisterer Elektrotech Karl | TRANSFORMER STATION WITH UNDERFLOOR TRANSFORMER |
| CN103594228A (en) * | 2013-11-27 | 2014-02-19 | 浙江江山特种变压器有限公司 | Efficient cooling transformer |
| CN103779046A (en) * | 2013-12-17 | 2014-05-07 | 浙江金冠特种变压器有限公司 | Transformer cooling device |
| CN204010918U (en) * | 2014-08-25 | 2014-12-10 | 国家电网公司 | A kind of cooling device for dry-type transformer |
| CN104319070A (en) * | 2014-11-12 | 2015-01-28 | 国家电网公司 | Radiating system of main transformer |
| CN105258388A (en) * | 2015-10-30 | 2016-01-20 | 苏州必信空调有限公司 | Energy-saving and efficient refrigerating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054387A (en) * | 2019-06-05 | 2020-12-08 | 二工防爆科技股份有限公司 | High-efficient heat dissipation fire prevention explosion-proof cabinet |
| CN112071568A (en) * | 2020-07-31 | 2020-12-11 | 国家电网有限公司 | Transformer cooling device for electric power field |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |