CN2333071Y

CN2333071Y - Evaporating cooled transformer

Info

Publication number: CN2333071Y
Application number: CN 98200236
Authority: CN
Inventors: 谢世英
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-09
Filing date: 1998-01-09
Publication date: 1999-08-11
Anticipated expiration: 2008-01-09

Abstract

The utility model relates to a novel evaporating cooled transformer, which belongs to an electrical device. In order to overcome the problems of a bad cooled effect and easy burning existing on an oil cooled transformer, the utility model is especially proposed. The utility model is composed of a transformer casing, an iron core, a winding group and a cooled medium. The liquid of the cooled medium adopts a fluorine compound and has the characteristic of easy conversion between a liquid phase and an air phase. When the cooled medium is heated to be gasified, the cooled medium can absorb a mass of heat and be cooled to be recovered into the liquid, which makes a transformer kept over a correct temperature. The outer side of the transformer casing is provided with a condenser. The position of the condenser is also provided with a secondary cooled device. The utility model has the characteristics of high cooled efficiency, stable function, safety and obvious effects of energy saving and consumption lowering.

Description

The transformer of novel vaporation-type cooling

The utility model belongs to a kind of electric equipment, and it is specifically related to a kind of structure of transformer of novel vaporation-type cooling.

Traditional big-and-middle-sized transformer mostly is and adopts transformer oil to make insulation and coolant, and the major advantage of transformer oil is the electrical strength height, and shortcoming is that the capacity of heat transmission is poor and be easy to burning, gives and moves the danger that potential fire is brought in the place.Therefore, in order definitely to avoid causing the possibility of fire because of transformer, just must select the oil cooled transformer form of non-transformer for use in some special areas, as adopting the forms such as transformer of dry-type transformer, the gas-cooled transformer of SF6 or F0RMEL-MF liquid cools.Above various forms all exists many technical problems, though the transformer of dry type does not have combustibility, consumable material is many, cost an arm and a leg, and is about 2.5～3 times of oil-cooled transformer price; Though the gas-cooled transformer good insulating of SF6 and not flammable, this gas must be at 4～5Kg/Cm ²Down work of pressure condition, like this, its housing just forms a pressure vessel, price is also higher; And non-flammable fluid FORMEL-MF has toxicity, and one causes harm to the people when leaking serious environment pollution then.In a word, aforesaid all types of cooling all belong to conduction pattern, and the efficient of cooling is all lower.

The purpose of this utility model is to be the special this programme that proposes of existing technical problem in the cooling that overcomes aforementioned transformer--the transformer of novel vaporation-type cooling, the structure of in this programme, selecting a kind of novel coolant for use and cooperating with it, inflammable in the hope of solving, improve the problem that cooling effectiveness, economical with materials reduce cost.

By as above design, the transformer of the novel vaporation-type cooling that this programme provided, it includes the binding post of Transformer Winding, transformer core, transformer housing, loam cake, high-pressure and low-pressure and the coolant of liquid, the iron core and the winding that it is characterized in that its transformer are immersed among the liquid cooling medium of the easy conversion of liquid phase gas phase, outside at its housing is provided with condenser, this condenser is the radiator of a multitube parallel, its upper end is linked up with the space of the upper end of pipeline and housing, and the bottom in lower end and the housing is linked up.

In this programme, another form of the condenser of its outside goes out pipe, condenser pipe, liquid back pipe and is formed by being installed in the outer steam of loam cake, the mutual UNICOM in inside of each Guan Douyu transformer housing, and its steam goes out the height of the height of pipe greater than liquid back pipe.External condenser place at it also can increase fan, makes the air blast cooling form of secondary cooling.External condenser place at it also can increase water jacket, makes the water-cooled form of secondary cooling.

Adopt this programme can embody following superiority: the liquid that 1. in this novel transformer, has adopted a kind of liquid phase gas phase to transform easily, promptly evaporate after it is heated and become gas, be recovered to liquid again after delivering to the condenser cooling, the periodic duty that goes round and begins again, can absorb a large amount of heat during evaporation, therefore its cooling effectiveness height, and the working temperature of its transformer can obtain reliably and accurately control; 2. the liquid of this kind coolant is not flammable, does not have the hidden danger of fire incident, provides safe guarantee to the user; 3. the liquid of this coolant has excellent dielectric properties, need not to do anticorona operational processes under the voltage of 20KV level; 4. because the efficient height and the capacity of this kind coolant are big, the accurate working temperature of control transformer, characteristics and the needs different according to the working temperature of range transformer, can select different medium parameters to adapt to, can directly bring two consequences like this, but can make this kind transformer obtain the potentiality of overload operation; Compare with other transformer of same levels and can directly reduce copper loss 4～8%, because overall volume is obviously dwindled, can save copper material 1/3～1/2, save silicon steel sheet 1/4～1/3, its energy conservation and consumption reduction effects is obvious.

Fig. 1 is the structural representation of a kind of embodiment of the transformer of the novel vaporation-type of this programme scheme cooling.

Fig. 2 is the structural representation of the another kind of embodiment of this programme.

Fig. 3 Fig. 4 is the structural representation that the air blast cooling form is adopted in the cooling of this programme secondary.

Fig. 5 Fig. 6 is the structural representation that the water-cooled form is adopted in the cooling of this programme secondary.

The embodiment of existing accompanying drawings this programme.The transformer of the novel vaporation-type cooling of this kind is by Transformer Winding 1, transformer core 2, transformer housing 3, loam cake 4, the binding post 5 of high-pressure and low-pressure and the coolant 10 of liquid are formed, this transformer adopting liquid phase gas phase conversion be easy to liquid medium, that specifically select for use is F-11, FC-75, FC-113, one of materials such as FC-114, its iron core and winding all are immersed within the coolant, be provided with the condenser of the coolant of gasification in the outside of transformer housing, it can have two kinds of structures, the radiator 6 of one group of multitube parallel of the first, its upper end is linked up with the superjacent air space of pipeline and transformer housing, the bottom UNICOM of its lower end in pipeline and the transformer housing; It two is that its external condenser goes out pipe 7, condenser pipe 8, liquid back pipe 9 by last upper part of the cover steam and formed, all mutual UNICOM between their each pipe, and with the inside UNICOM of housing, its steam goes out the height of the height of pipe greater than liquid back pipe.Can also accomplish at external condenser the cooling of secondary fan 11 can be set, make the form of air blast cooling, establish water jacket 12, can make the form of water-cooled in the outside of condenser tubes at the condenser place.When work, the magnetic energy consumption of iron core and winding converts heat to causes temperature to improve significantly, this heat makes the coolant evaporation that arrives evaporating temperature convert gas phase to by liquid phase, the bubble disengagement liquid level rises and enters condenser, meeting the cold liquid that condenses into again turns back in the transformer housing, in gasification, can absorb a large amount of heat, make the working temperature of transformer can be controlled at one accurately within the scope.For the needs that adapt to different transformers can be selected the form of different fluorides for use, because the evaporating temperature that they are had nothing in common with each other.

The pilot sample of this programme proves through the experiment operation: it has cooling effectiveness height, function-stable, safe and reliable, energy conservation and consumption reduction effects outstanding feature, is suitable for making in batches promoting the use of.

Claims

1. the transformer of a novel vaporation-type cooling, it includes the binding post (5) of Transformer Winding (1), transformer core (2), transformer housing (3), loam cake (4), high-pressure and low-pressure and the coolant (10) of liquid, the iron core and the winding that it is characterized in that its transformer are immersed among the liquid cooling medium of the easy conversion of liquid phase gas phase, outside at its housing is provided with condenser, this condenser is the radiator (6) of a multitube parallel, its upper end is linked up with the space of the upper end of pipeline and housing, and the bottom in lower end and the housing is linked up.

2. plant according to power and require 1 described transformer, it is characterized in that the outer steam of loam cake goes out pipe (7), condenser pipe (8), liquid back pipe (9) is formed by being installed in for its condenser of outside, the mutual UNICOM in inside of each Guan Douyu transformer housing, its steam goes out the height of the height of pipe greater than liquid back pipe.

3. according to the described transformer of claim 1, it is characterized in that also can increasing fan (11), make the air blast cooling form of secondary cooling at its external condenser place.

4. according to the described transformer of claim 1, it is characterized in that also can increasing water jacket (12), make the water-cooled form of secondary cooling at its external condenser place.