CN201036121Y - Oil circulation cooling device of water, gas dual-condensing transformer - Google Patents
Oil circulation cooling device of water, gas dual-condensing transformer Download PDFInfo
- Publication number
- CN201036121Y CN201036121Y CNU2007200834244U CN200720083424U CN201036121Y CN 201036121 Y CN201036121 Y CN 201036121Y CN U2007200834244 U CNU2007200834244 U CN U2007200834244U CN 200720083424 U CN200720083424 U CN 200720083424U CN 201036121 Y CN201036121 Y CN 201036121Y
- Authority
- CN
- China
- Prior art keywords
- transformer
- oil
- cooling
- main frame
- temperature
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model relates to a cycle cooling device for the oil of a water-vapor dual condenser, and comprises a transformer (27), two oil pipes (28) respectively connected with the lower oil mouth of the oil groove on the transformer (27), the oil inlet of a cooling host (29), the three-way on the bottom of the pressure release pipe of the transformer, and the cooled oil outlet of the cooling host. The cooling device is characterized in that the efficiency of heat exchange is high; the oil temperature of the transformer is working on stable stage; the working efficiency of the transformer is improved greatly; the service life of the transformer oil and the transformer are greatly prolonged; and a lot of energy is saved.
Description
Technical field
The utility model relates to the transformer technology field, specifically a kind of water, gas double condensing transformer oil circulating cooling device.
Background technology
In utility network and enterprise's electrical network, all are connected to single-phase and the three-phase alternating current electrical network, and all need magnetizing current by the electric equipment of electromagnetic induction principle work when setting up magnetic field.Transformer is exactly a kind of typical equipment, and it not only will absorb active power from electric power system, but also will absorb magnetic energy to produce the necessary alternating magnetic field of these operate as normal.Magnetizing current is not participate in power conversion, and magnetizing current flows in system in a large number, makes that line loss increases, the quality of power supply reduces, and generating, power supply, user three parts are produced harmful effect, and waste of electric energy is not wish the phenomenon that occurs.
After the elementary winding energising of transformer, the magnetic flux that coil produced flows at iron core, because iron core itself also is a conductor, will induced potential on perpendicular to the plane of the magnetic line of force, this electromotive force forms the closed-loop path and produces electric current on the section of iron core, be called " eddy current " so seem a vortex.This " eddy current " increases the loss of transformer, and the temperature rise of the iron core heating transformer of transformer is increased.We are called " iron loss " loss that is produced by " eddy current ".Want the coiling transformer need be with a large amount of copper cash in addition, these copper conductors exist resistance, and this resistance can consume certain power when electric current flow through, and this part loss often becomes heat and consumes, and we claim this loss to be " copper loss ".So the temperature rise of transformer is mainly produced by iron loss and copper loss.Iron loss and copper loss increase along with the rising of temperature again, owing to there is such vicious circle, are having a strong impact on the operating efficiency of transformer, so its power output is forever less than input power.
The temperature rise standard of China's transformer all is as the criterion for 40 ℃ with ambient temperature, so the transformer top-oil temperature generally must not be above 40 ℃+55 ℃=95 ℃.Top-oil temperature is as surpassing 95 ℃, and the temperature of its Inside coil will surpass the high-temperature capability of coil insulation thing, and is unlikely too fast aging in order to make insulation, so the supervision of regulation transformer top-oil temperature should be controlled at below 85 ℃.In 80-140 ℃ of scope, 6 ℃ of the every risings of temperature, the paper insulated life loss of transformer doubles.This rule is commonly referred to six degree rules.When the cooling device fault. cooling condition is destroyed, and the transformer operating temperature rises rapidly, and transformer insulated life loss sharply increases.The data introduction is arranged, and insulating material can be with 20 years when temperature remains on 95 degrees centigrade; 105 degrees centigrade of temperature, in about 7 years of life-span, 120 degrees centigrade of temperature are about 2 years; During 170 degrees centigrade of temperature about 10 ~ 12 days.
In order to cut the waste, improve the quality of power supply, promote the operating efficiency and the life-span of transformer, in fact the working temperature that reduces transformer is exactly to reduce the temperature of transformer cold oil, and the transformer oil falling temperature technique becomes the one preferred technique that breaks through every bottleneck.This also is the option foundation that we develop gas, the two condensation transformer oil forced circulation cooling of water machine.
Summary of the invention
The purpose of this utility model is that a kind of transformer oil of development utilizes the method for water, the cooling of gas double condensing forced circulation to make transformer oil remain on water, the gas double condensing transformer oil circulating cooling device of work in the range of set temperature.
The circulating cooling device of the two condensation transformer oil of a kind of aqueous vapor of the utility model comprises: transformer, two oil pipes respectively with the oil groove of transformer under hydraulic fluid port, the oil-in of cooling main frame, transformer rush down the threeway of pressure pipe lower curtate, cooling main frame cooling-oil outlet links to each other.
The two medium condensers of water source and air are housed in the cooling main frame of the two condensation transformer oil circulating cooling devices of aqueous vapor.
In the cooling main frame of the two condensation transformer oil circulating cooling devices of aqueous vapor at least two refrigerant compressors of parallel connection are housed.
In the cooling main frame of the two condensation transformer oil circulating cooling devices of aqueous vapor at least two fast board-like heat exchangers are housed.
In the cooling main frame of the two condensation transformer oil circulating cooling devices of aqueous vapor expansion valve is housed.
The outlet of the exhaust outlet of compressor 1,4 is advanced on unidirectional valve 2,5 and the oil content 3,6 air inlet and is taked copper tube two ends welding manner to be connected, the right side outlet parallel connection of the gas outlet 3,6 of oil content takes copper tube two ends welding manner to be connected with the air inlet of plate heat exchanger 7, and the gas outlet of plate heat exchanger 7 takes the copper tube welding manner to be connected with aerial condenser 8 air inlets.On the connection copper pipe between the air inlet of exhaust outlet of compressor and plate heat exchanger 7, there is wooden fork shape four-way bypass pipe to weld with high pressure gauge 24, high pressure valve 26, dual pressure controller 25 respectively.
Outlet of the high-voltage tube of liquid reservoir 13 and plate heat exchanger 9 lower-left imports are companys of weldering mutually, and filter 12, two-way in parallel two expansion valves 10,11 that freeze are housed therebetween successively, and the flow direction from right to left; Another high-voltage tube import (left 2 tunnel) of liquid reservoir and aerial condenser 8 outlet welding; The low-pressure admission mouth of pipe of liquid reservoir 13 and plate heat exchanger 9 upper left gas outlets are the company of weldering mutually, the low pressure of liquid reservoir 13 gentle branch 14 air inlets of the mouth of pipe company of weldering mutually of giving vent to anger.Gas divides the air entry weldering of 14 gas outlet and two compressors to connect.All devices all connect with No. two electrolysis copper tubes, and except that the sealing of screw threads for fastening tapered end face was adopted at filter 12 two ends, all the other all were money base copper arc welding electrode welded seal.
The two condensation transformer oil of a kind of aqueous vapor of the utility model be to utilize the totally enclosed type screw compressor to drive the environmental protection working media. it is circulated in the work loop of independent sealing, utilize the difference of thermal balance type expansion valve according to the transformer heat load, automatically carrying out dynamic working medium flow regulates, regulate the machine-processed cold output of cooling intelligently, thereby make under the stable working temperature that is operated in our setting of transformer.
The transformer oil cooling is achieved in that at first entering oil content 3,6 from the HTHP working medium (gaseous state) of compressor 1,4 outflows carries out Oil-gas Separation, give low pressure line with the unnecessary liquid compression machine oil loopback that mixes in the Working medium gas, sucked back by compressor, the high temperature refrigerant of gaseous state enters first plate heat exchanger 7 condense thermal energy is conducted feedwater, can do life fully and warm up usefulness with hot water or system.What flow out first plate heat exchanger still has the overheated high-pressure working medium of part upwards, enters aerial condenser 8 and carries out the B-grade condensation heat radiation, gives air with heat conduction, and working medium becomes the liquid of high pressure lower temperature.High pressure low temperature working medium is crossed reservoir through 10,11 throttlings of thermal balance type expansion valve, become low-temp low-pressure gas liquid mixture working medium and enter second plate heat exchanger, the heat energy that the low-temp low-pressure liquid working substance fully absorbs in the transformer oil becomes gas phase working medium, the low-temp low-pressure gas working medium flows into liquid reservoir 13 successively, gas divides 14, and the air intake duct that enters compressor again enters circulation next time.Cryogenic transformer oil after the quilt heat absorption is delivered to cold energy in the transformer conservator lowers the temperature to transformer, and the transformer oil that discharged cold energy is drawn back the refrigeration plate heat exchanger 9 of cooling machine again by hot oil pump 21, finished the cool cycles of transformer oil in unit.When the transformer heat load is little, has only a compressor in work, only excessive in the transformer heat load, when single compressor work is not enough to cool in the design temperature scope, second compressor just starts the participation refrigeration cool-down, and second compressor is the carrying out safety backup machine to a greater extent, when that is to say a compressor fault, another compressor still can drive the heat sink operate as normal, and can not cause temperature of oil in transformer too high.When reaching default cooling temperature; the heat sink autostop is awaited orders; when oily temperature rises to the setting working temperature; heat sink can at first be opened short compressor running time; shut down when requiring when reaching once more; the compressor that time at first out of service is long, so the equilibrium operating of compressor is guaranteed in circulation.
The outstanding advantage of the utility model " water, gas double condensing transformer oil forced circulation heat sink " is:
1. utilize the heat of water and air the two poles of the earth condensation absorption transformer oil, the cooling-down effect highly significant, oily Wen Yuegao cooling-down effect is good more, and 60 ℃ are down warm to oil, and the refrigeration efficiency ratio can reach more than 7.0.
2. adopt board-like stainless steel heat exchanger, heat exchange area is big, and the heat exchange efficiency height can be protected oily pure.
3. adopt double-compressor parallel refrigeration, between unit and two-shipper mode of operation, switch automatically according to the heat load size, big with electric loading, oil warm when high double-compressor work simultaneously, with electric loading hour, the oil temperature is low, a compressor operating.
4. have safe complementary function between the double-compressor, have only when two compressor simultaneous faultss, heat sink is cisco unity malfunction, has improved the reliability of cooling system.
5. with the transformer interface close friend, substantially do not change the structure of transformer, only need to rush down the pressure pipe bottom and increase a three-way connection at transformer, for providing the injection channel of a cold oil, heat sink gets final product, the following oilhole of transformer and the oil-in of heat sink link to each other, keep the loop unimpeded, start promptly can be the transformer oil cooling.
5. can provide the whole year free hot water to supply the warm domestic water of system; The rate of energy height, energy-saving effect is remarkable.
6. use the environmental protection refrigerant, do not destroy atmospheric ozone layer, the human earth of depending on for existence of protection.
7. the transformer oil temperature is worked under stable status, and transformer ground operating efficiency improves greatly, and the oil of transformer and improving greatly the useful life of transformer has been saved a large amount of energy.
Illustrate its usage economy analysis
Owing to improved power transformation efficient, reduced energy consumption, prolonged the useful life of transformer, the economic interests that the hanging net operation of this project brings for the power transmission and transformation industry are obvious.
Simply calculate the benefit of utilizing water, gas double condensing transformer oil forced circulation heat sink to bring by the transformer of a 40000kVA: the transformer of a 40000kVA, its traditional heat-dissipating loss is 210kW, autogamy 5kW oil circulating pump.Adopt a 10kW heat sink can reach the cooling purpose, input power on average is no more than 8kW, and this can save more than the 200kW; (60 ℃ with under the warm operating mode that oils owing to the heat sink good refrigeration effect, this model single-unit cold can be up to more than the 70kW), will inevitably reduce " iron loss " and " copper loss " of transformer greatly, improve the power transformation efficient of transformer, if by raising the efficiency 1%, this can save 400kW; Two totals can be saved more than the 600kW, and by 0.5 yuan of calculating of every degree electricity, the energy-saving efficiency that water, gas double condensing transformer oil forced circulation heat sink are brought can increase by 7200 yuans every day, and year increases benefit 26.28 ten thousand yuan.By 6,000,000 yuan of every transformer prices, ordinary life 20 years, but with life-saving behind the heat sink more than 10 years, a year life-span cost can reduce by 100,000 yuan.In 15 years heat sink life-spans, heat sink is used in the benefit total life cycle that the transformer cooling of a 40000kVA increased up to 544.2 ten thousand yuan.
Description of drawings
Fig. 1 is the circulating cooling device schematic diagram.
Fig. 2 is water, gas double condensing transformer oil forced circulation heat sink schematic diagram.
Embodiment
According to Fig. 1-shown in Figure 2:
Water, gas double condensing transformer oil circulating cooling device comprise: cooling main frame 29, oil-filled transformer 27, connection oil pipe 28 3 parts are formed.
The cooling main frame comprises: scroll compressor 1, scroll compressor 4, unidirectional valve 2, unidirectional valve 5, oil content 3, oil content 6, plate heat exchanger 7 (left plate heat exchanger in the schematic diagram), plate heat exchanger 9 (right panel formula heat exchanger in the schematic diagram), reservoir 13, expansion valve 10, expansion valve 11, dual pressure controller 25, high pressure gauge 24, high pressure valve 26, low pressure controller 16, low-pressure meter 17, low pressure valve 15, aerial condenser 8 (comprising fan electromotor, fan, finned fan coil), oil circulating pump 21 and each connecting line.
Connected mode between each parts is as follows:
All devices all connect with No. two electrolysis copper tubes, and except that the sealing of screw threads for fastening tapered end face was adopted at filter 12 two ends, all the other all were money base copper arc welding electrode welded seal.The exhaust outlet (upper outlet among the figure) of compressor (among the figure 1,4) advances unidirectional valve (2,5) and goes up air inlet with oil content (3,6) and take copper tube two ends welding manner to be connected, the gas outlet of oil content (3,6 right side outlets) is in parallel takes copper tube two ends welding manner to be connected with the air inlet (the lower-left circle of left plate heat exchanger in the schematic diagram) of plate heat exchanger 7, and the gas outlet of plate heat exchanger 7 (the upper left circle of left plate heat exchanger in the schematic diagram) takes the copper tube welding manner to be connected with aerial condenser 8 air inlets.On the connection copper pipe between the air inlet of exhaust outlet of compressor and plate heat exchanger 7, there is wooden fork shape four-way bypass pipe to weld with high pressure gauge 24, high pressure valve 26, dual pressure controller 25 respectively.
The high-voltage tube of liquid reservoir 13 outlet (right 2 tunnel) and plate heat exchanger 9 lower-left imports are companys of weldering (right panel formula heat exchanger lower-left circle in the schematic diagram) mutually, and filter 12, two-way in parallel two expansion valves 10,11 that freeze are housed therebetween successively, and the flow direction from right to left; Another high-voltage tube import (left 2 tunnel) of liquid reservoir and aerial condenser 8 outlet welding; The low-pressure admission mouth of pipe of liquid reservoir 13 (liquid reservoir the first from left road among the figure) and plate heat exchanger 9 upper left gas outlets are the company of weldering mutually, the low pressure of liquid reservoir 13 mouth of pipe (liquid reservoir right a tunnel among the figure) gentle branch 14 air inlets (right wing) company of weldering mutually of giving vent to anger.Gas divides the air entry weldering of 14 gas outlet (left road) and two compressors to connect.
In heat sink when work: the HTHP working medium (gaseous state) that flows out from compressor 1,4 at first enters oil content 3,6 and carries out Oil-gas Separation, give low pressure line with the unnecessary liquid compression machine oil loopback that mixes in the Working medium gas, sucked back by compressor, the high temperature refrigerant of gaseous state enters first plate heat exchanger 7 condense thermal energy is conducted feedwater, can do life fully and warm up usefulness with hot water or system.What flow out first plate heat exchanger still has the overheated high-pressure working medium of part upwards, enters aerial condenser 8 and carries out the B-grade condensation heat radiation, gives air with heat conduction, and working medium becomes the liquid of high pressure lower temperature.High pressure low temperature working medium is crossed reservoir through 10,11 throttlings of thermal balance type expansion valve, become low-temp low-pressure gas liquid mixture working medium and enter second plate heat exchanger, the heat energy that the low-temp low-pressure liquid working substance fully absorbs in the transformer oil becomes gas phase working medium, the low-temp low-pressure gas working medium flows into liquid reservoir 13 successively, gas divides 14, and the air intake duct that enters compressor again enters circulation next time.Cryogenic transformer oil after the quilt heat absorption is delivered to cold energy in the transformer conservator lowers the temperature to transformer, and the transformer oil that discharged cold energy is drawn back the refrigeration plate heat exchanger 9 of heat sink again by hot oil pump 21, finished the kind of refrigeration cycle of transformer oil in unit.When the transformer heat load is little, has only a compressor in work, only excessive in the transformer heat load, when single compressor work is not enough to cool in the design temperature scope, second compressor just starts the participation refrigeration cool-down, and second compressor is the carrying out safety backup machine to a greater extent, when that is to say a compressor fault, another compressor still can drive the heat sink operate as normal, and can not cause temperature of oil in transformer too high.When reaching default cooling temperature; the heat sink autostop is awaited orders; when oily temperature rises to the setting working temperature; heat sink can at first be opened short compressor running time; shut down when requiring when reaching once more; the compressor that time at first out of service is long, so the equilibrium operating of compressor is guaranteed in circulation.
Claims (5)
1. the circulating cooling device of the two condensation transformer oil of an aqueous vapor, comprise: transformer (27), it is characterized in that: two oil pipes (28) hydraulic fluid port respectively and under the oil groove of transformer (27), the oil-in of cooling main frame (29), transformer rush down the threeway of pressure pipe lower curtate, cooling main frame cooling-oil outlet links to each other.
2. the two condensation transformer oil circulating cooling devices of aqueous vapor according to claim 1 is characterized in that: the two medium condensers of water source and air are housed in the cooling main frame (29).
3. the two condensation transformer oil circulating cooling devices of aqueous vapor according to claim 1 is characterized in that: in the cooling main frame (29) two refrigerant compressors of parallel connection are housed at least.
4. the two condensation transformer oil circulating cooling devices of aqueous vapor according to claim 1 is characterized in that: in the cooling main frame (29) two fast board-like heat exchangers are housed at least.
5. the two condensation transformer oil circulating cooling devices of aqueous vapor according to claim 1 is characterized in that: in the cooling main frame (29) expansion valve is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200834244U CN201036121Y (en) | 2007-02-02 | 2007-02-02 | Oil circulation cooling device of water, gas dual-condensing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200834244U CN201036121Y (en) | 2007-02-02 | 2007-02-02 | Oil circulation cooling device of water, gas dual-condensing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201036121Y true CN201036121Y (en) | 2008-03-12 |
Family
ID=39197010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200834244U Expired - Lifetime CN201036121Y (en) | 2007-02-02 | 2007-02-02 | Oil circulation cooling device of water, gas dual-condensing transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201036121Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051553B (en) * | 2007-02-02 | 2011-02-02 | 武汉朗肯节能技术有限公司 | Oil circulation temperature reducing method for water and gas double condensing transformer and circular temperature reducing device |
| CN103154516A (en) * | 2010-10-19 | 2013-06-12 | 纳博特斯克有限公司 | Air compressing device for railway vehicle |
| CN107993807A (en) * | 2018-01-24 | 2018-05-04 | 江苏东晔电气设备有限公司 | A kind of transformer cooling system |
-
2007
- 2007-02-02 CN CNU2007200834244U patent/CN201036121Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051553B (en) * | 2007-02-02 | 2011-02-02 | 武汉朗肯节能技术有限公司 | Oil circulation temperature reducing method for water and gas double condensing transformer and circular temperature reducing device |
| CN103154516A (en) * | 2010-10-19 | 2013-06-12 | 纳博特斯克有限公司 | Air compressing device for railway vehicle |
| CN107993807A (en) * | 2018-01-24 | 2018-05-04 | 江苏东晔电气设备有限公司 | A kind of transformer cooling system |
| CN107993807B (en) * | 2018-01-24 | 2019-07-09 | 江苏东晔电气设备有限公司 | A kind of transformer cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101051553B (en) | Oil circulation temperature reducing method for water and gas double condensing transformer and circular temperature reducing device | |
| CN201555311U (en) | Liquid pump liquid supply multi-linking air conditioning unit with natural cooling function | |
| CN101871706B (en) | Phase-change energy-storage heat pump water heater | |
| CN113175698B (en) | Heat exchange station system and method for heating secondary net water by using geothermal energy | |
| CN202304098U (en) | Superhigh-temperature water source heat pump unit | |
| CN205066232U (en) | Ground -source heat pump system for natural gas station | |
| CN201036121Y (en) | Oil circulation cooling device of water, gas dual-condensing transformer | |
| CN106787601A (en) | For the heat accumulating type metal magnetic fluid generating device and method of electric energy peak load shifting | |
| CN103779048B (en) | A kind of with SF 6for main transformer heat abstractor and the method for coolant media | |
| CN202973654U (en) | Waste heat recovery type dual-effect dual-temperature device | |
| CN102927718B (en) | Novel double-effect dual-temperature high temperature heat pump device | |
| CN103779049B (en) | A kind of with SF 6for heat-pump-type main transformer heat-exchanger rig and the method for heat transferring medium | |
| CN206595879U (en) | Heat accumulating type metal magnetic fluid generating device for electric energy peak load shifting | |
| CN102095234A (en) | Solar heat pump and power heat pipe compound system | |
| CN116683086A (en) | Centralized liquid cooling system of energy storage battery | |
| JPH08298215A (en) | Exhaust heat utilization system for stationary induction unit | |
| CN202692214U (en) | Novel direct air-cooling unit high-efficiency heating system | |
| CN206583339U (en) | A kind of generator unit stator winding heat reclamation device | |
| CN214664692U (en) | Energy-saving efficient regional cooling and heating system | |
| CN204854070U (en) | Air -source heat pump trigeminy supplies unit | |
| CN203706799U (en) | Main transformer plate type cooling device with SF6 medium as coolant | |
| CN212457068U (en) | Central heating system | |
| CN203706795U (en) | Main transformer cooling device with SF6 medium as coolant | |
| CN203799786U (en) | Heat dissipation device of oil immersed transformer | |
| CN208595723U (en) | A kind of low-temperature air source heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil circulation cooling device of water, gas dual-condensing transformer Effective date of registration: 20120824 Granted publication date: 20080312 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Langken Energy Saving Technology Co., Ltd., Wuhan Registration number: 2012990000470 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |