CN101308720A - Cooling machine set system for six warming and six effect cold pump energy saving transformer - Google Patents
Cooling machine set system for six warming and six effect cold pump energy saving transformer Download PDFInfo
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- CN101308720A CN101308720A CNA200710052194XA CN200710052194A CN101308720A CN 101308720 A CN101308720 A CN 101308720A CN A200710052194X A CNA200710052194X A CN A200710052194XA CN 200710052194 A CN200710052194 A CN 200710052194A CN 101308720 A CN101308720 A CN 101308720A
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Abstract
Disclosed is a cooling system for an energy-saving transformer with a sextuple-temperature sextuple-effect cold pump. The system forces oil to circulate in a refrigerating evaporator, and during the circulation, the heat of the oil is absorbed by cold media for six times and is released to the outside by a condenser. The system is quick in cooling process, stable in temperature, good in cooling effect and prevents the transformer from being burned out or from blasting due to high-temperature oil. The cooling source of the system is provided by the cooling pump and the system is automatically controlled under constant temperature, thus greatly reducing damages and improving the operation efficiency and safety of the transformer.
Description
Affiliated technical field
The present invention relates to a kind of oil-immersed power transformer cooling machine set system
Background technology
Present oil-immersed power transformer is that a kind of passing through changes voltage and the induction apparatus of electric energy transmitting, because the total capacity of transformer is quite big in electric power system, the 5-7 that is generally generate output doubly, although the efficient of transformer is very high, but because quantity and capacity are all bigger, its total losses also are sizable relatively, account for 20% of line loss.How reducing the loss in the power transformation link, improve transformer efficiency, is one of important measures of our energy savings.And present stage power-economizing method be to make oily natural circulation and wind cooling temperature lowering, poor effect, especially the summer of sweltering heat temperature reach more than 38 ℃, when the oil temperature reaches more than 80-95 ℃, transformer efficiency sharply descends, and serious meeting is burnt the winding of transformer, can make the transformer blast what is more.
Summary of the invention
For energy savings, improve transformer efficiency, prevent burning and exploding of transformer, the invention provides a kind of six warming and six effect cold pump energy saving transformer cooling machine set system, this system provides low-temperature receiver by cold pump, fully-automatic thermostatic control, thus significantly reduce loss on transmission, improve the operational efficiency and the coefficient of safety of transformer.
The present invention solves the technical scheme that its technical problem takes: forced oil circulates in refrigerating evaporator, the heat of oil is absorbed for six times by the refrigerant in the evaporator and is outwards wantonly put by condenser in circulation, this method cooling is fast, temperature constant, good cooling results reaches the purpose that does not make transformer be burnt or explode owing to the oil temperature is high.
The further technical scheme of the present invention is: a kind of six warming and six effect cold pump energy saving transformer cooling machine set system, comprise two cover coolant circulating system and oil circulating systems, described two cover coolant circulating systems comprise cold pump, gas energy-saving appliance, liquid energy-saving device, electronic throttle device, capillary, blower fan, condenser, evaporator, cold pump is connected with condenser, liquid energy-saving device, electronic throttle device, evaporator, gas energy-saving appliance, cold pump successively by the refrigerant pipe, constitutes two cover coolant circulating systems respectively.Described evaporator is a special multicore double-tube heat exchanger/or stainless steel plate type heat exchanger, the interior pipe of this double-tube heat exchanger is walked the refrigerant outer tube and is gone rancid, the interlayer that goes rancid is walked refrigerant and plate heat exchanger is this layer of closed container of layering, in four interfaces on the body, two is the turnover pipe of refrigerant, join with the gentle body energy-saving appliance of electronic throttle device respectively, two is the turnover pipe of oil in addition, joins with high temperature oil pump and transformer respectively.Described liquid energy-saving device is a closed container that special gas-liquid is shared, coil pipe in the container is walked liquid container and is walked gas, walks gas for two in four outlets on top, joins with capillary and compressor, walk liquid for two in addition, join with condenser and electronic throttle device.Described gas energy-saving appliance is a special closed container, walk gas in the container, two are connected with compressor with evaporator in four interfaces on top, make the gas of evaporator get back to compressor, two is capillary and compressor interface in addition, and the gas that capillary is come is got back to compressor.Described oil circulating system comprises high temperature oil pump, oil distributing pipe, transformer, and high temperature oil pump is connected with evaporator, transformer, oil distributing pipe, high temperature oil pump successively by circulating pipe, constitutes oil circulating system.Described cold pump is a refrigerant compressor that is provided with porting, and described electronic throttle device is an electric energy-saving expansion valve that has the liquid in-out mouth.
The invention has the beneficial effects as follows:
1, cooling rate is fast, temperature constant,
2, native system adopts the environmental protection refrigerant, and do not explode and do not burn,
3, native system adopts the electronic throttle device, the high wide ranges of throttling precision,
4, the present invention uses " six warming and six effect " technology, and oil is carried out six coolings simultaneously.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples:
Figure is a structural representation of the present invention: wherein: 1. cold pump, 2. gas energy-saving appliance, 3. liquid energy-saving device, 4. electronic throttle device, 5. capillary, 6. capillary, 7. blower fan, 8. condenser, 9. evaporator, 10. high temperature oil pump, 11. cabinet, 12. oil distributing pipes, 13. transformers, 14. fuel feed pump, 15. oil return pipes.
Embodiment
As shown in the figure, cold pump (1) is connected with condenser (8), liquid energy-saving device (3), electronic throttle device (4), evaporator (9), gas energy-saving appliance (2), cold pump (1) successively by the refrigerant pipe, constitutes coolant circulating system.High temperature oil pump (10) is connected with evaporator (9), transformer (13), oil distributing pipe (12), high temperature oil pump (10) successively by circulating pipe, constitutes oil circulating system.When refrigeration cool-down moves, under the effect of cold pump pressure, refrigerant is discharged by the exhaust outlet of cold pump (1), by pipeline process condenser (8), liquid energy-saving device (3), electronic throttle device (4), evaporator (9), gas energy-saving appliance (2), the air entry circular flow of cold pump (1), in service at this, the variation of refrigerant is such: what cold pump (1) was got rid of is high temperature and high pressure gas, heat radiation outward after this gas enters into condenser (8), blown away by blower fan (7), enter into liquid energy-saving device (3) and enter electronic throttle device (4) by pipeline again and carry out throttling when the refrigerant that is cooled becomes high temperature high pressure liquid, being become low-temp low-pressure liquid by the liquid after the throttling enters evaporator (9) and evaporates heat absorption, gas after the heat absorption enters gas energy-saving appliance (2) in enter cold pump (1) by pipeline by pipeline, because cold pump (1) and blower fan (7) ceaselessly move, refrigerant also just ceaselessly becomes liquid by gaseous state, the liquid gaseous state that becomes, the liquid period evaporate heat absorption and gasifies in evaporator, the outside heat release and liquefying in condenser of gaseous state period.Simultaneously, high temperature oil in the transformer (13) is under the pressure effect of high temperature oil pump (10), successively along high temperature oil pump (10), evaporator (9), transformer (13), oil distributing pipe (12), high temperature oil pump (10) carries out circular flow, temperature is absorbed by refrigerant and takes away when high temperature oil process evaporator, this is cooling for the first time, cooled oil is forced in the transformer (13) by pipeline (14) and (15) and oil distributing pipe (12), because the continuous operation of high temperature oil pump, high temperature oil constantly constantly is pressed in the transformer by the oil of taking away and being cooled in the transformer, reaches the purpose of cooling according to this.But, oily temperature is very high in the transformer, once cooling is impossible meet the requirements of, for this reason, to enter liquid energy-saving appliance (3) preceding and when the liquid refrigerant of HTHP, the liquid refrigerant of a part of HTHP that is distributed by bypass pipe enters again after through capillary (6) throttling and evaporates remaining heat after absorptive condenser (8) heat release in the liquid energy-saving appliance (3), carry out the absorbing and cooling temperature second time, meanwhile to enter liquid energy-saving appliance (3) preceding when the liquid refrigerant of HTHP, the liquid refrigerant of another part HTHP that is distributed by bypass pipe enters again after through capillary (5) throttling to evaporate in the gaseous state energy-saving appliance (2) and absorbs remaining heat after evaporator (9) heat exchange, carry out absorbing and cooling temperature for the third time, another effect of absorbing and cooling temperature is to reduce the suction temperature of compressor for the third time, thereby reduction consumption of compressor, owing to adorning two cover refrigerating systems in the cabinet (11), three coolings of each system, two systems are six coolings, therefore are called six warming and six effect.
Claims (6)
1. six warming and six effect cold pump energy saving transformer cooling machine set system, comprise two cover coolant circulating system and oil circulating systems, described two cover coolant circulating systems is characterized in that: cold pump is connected with condenser, liquid energy-saving device, electronic throttle device, evaporator, gas energy-saving appliance, cold pump successively by the refrigerant pipe, constitutes two cover coolant circulating systems respectively.Temperature is absorbed by refrigerant and takes away when high temperature oil process evaporator, this is cooling for the first time, before the liquid refrigerant of HTHP enters liquid energy-saving appliance, the liquid refrigerant of a part of HTHP that is distributed by bypass pipe evaporates remaining heat after the absorptive condenser heat release through entering again behind the capillary-compensated in the liquid energy-saving appliance, carry out the absorbing and cooling temperature second time, meanwhile before the liquid refrigerant of HTHP enters liquid energy-saving appliance, the liquid refrigerant of another part HTHP that is distributed by bypass pipe absorbs remaining heat after the evaporator heat exchange through entering again behind another capillary-compensated to evaporate in the gaseous state energy-saving appliance, carries out absorbing and cooling temperature for the third time.
2. six warming and six effect cold pump energy saving transformer cooling machine set system according to claim 1, it is characterized in that: oil circulating system is connected with evaporator, transformer, oil distributing pipe, high temperature oil pump by circulating pipe successively by high temperature oil pump, constitutes oil circulating system.High temperature oil in the transformer is under the pressure effect of high temperature oil pump, successively along high temperature oil pump, evaporator, transformer, oil distributing pipe, high temperature oil pump) carry out circular flow, temperature is absorbed by refrigerant and takes away when high temperature oil process evaporator.
3. six warming and six effect cold pump energy saving transformer cooling machine set system according to claim 1 is characterized in that: the cooling system configuration of six warming and six effect is by the identical coolant circulating system of two covers, every cover cooling three times, and two cover coolings six times are so claim six warming and six effect.
4. six warming and six effect cold pump energy saving transformer cooling machine set system according to claim 1, it is characterized in that: the liquid energy-saving device is a closed container that special gas-liquid is shared, coil pipe in the container is walked liquid container and is walked gas, walk gas for two in four outlets on top, join with capillary and compressor, walk liquid for two in addition, condenser and electric expansion valve join.
5. six warming and six effect cold pump energy saving transformer cooling machine set system according to claim 1, it is characterized in that: evaporator is a special multicore double-tube heat exchanger/or stainless steel plate type heat exchanger, the interior pipe of this double-tube heat exchanger is walked the refrigerant outer tube and is gone rancid, the interlayer that goes rancid is walked refrigerant and plate heat exchanger is this layer of closed container of layering, in four interfaces on the body, two is the turnover pipe of refrigerant, join with the gentle body energy-saving appliance of electric expansion valve respectively, two is the turnover pipe of oil in addition, joins with high temperature oil pump and transformer respectively.
6. six warming and six effect cold pump energy saving transformer cooling machine set system according to claim 1, it is characterized in that: the gas energy-saving appliance is a special closed container, walk gas in the container, two are connected with compressor with evaporator in four interfaces on top, make the gas of evaporator get back to compressor, two is capillary and compressor interface in addition, and the gas that capillary is come is got back to compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710052194XA CN101308720A (en) | 2007-05-17 | 2007-05-17 | Cooling machine set system for six warming and six effect cold pump energy saving transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710052194XA CN101308720A (en) | 2007-05-17 | 2007-05-17 | Cooling machine set system for six warming and six effect cold pump energy saving transformer |
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| Publication Number | Publication Date |
|---|---|
| CN101308720A true CN101308720A (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710052194XA Pending CN101308720A (en) | 2007-05-17 | 2007-05-17 | Cooling machine set system for six warming and six effect cold pump energy saving transformer |
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| CN (1) | CN101308720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779047A (en) * | 2014-02-19 | 2014-05-07 | 国家电网公司 | Main-transformation plate-type heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method |
-
2007
- 2007-05-17 CN CNA200710052194XA patent/CN101308720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779047A (en) * | 2014-02-19 | 2014-05-07 | 国家电网公司 | Main-transformation plate-type heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method |
| CN103779047B (en) * | 2014-02-19 | 2016-05-04 | 国家电网公司 | A kind of with SF6For the board-like heat dissipating method of main transformer of coolant media |
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| C57 | Notification of unclear or unknown address | ||
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Addressee: Wang Zizhong Document name: Written notice of preliminary examination of application for patent for invention |
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Open date: 20081119 |