CN203288396U

CN203288396U - Spray-type evaporative cooling transformer

Info

Publication number: CN203288396U
Application number: CN2013203280700U
Authority: CN
Inventors: 姚建歆; 魏巍; 张洁; 胡旭东; 贲志棠; 范进军; 林俊杰; 卢远劼; 蒋大为; 李永光; 卞晖
Original assignee: State Grid Corp of China SGCC; Shanghai Municipal Electric Power Co
Current assignee: State Grid Corp of China SGCC; Shanghai Municipal Electric Power Co
Priority date: 2013-06-06
Filing date: 2013-06-06
Publication date: 2013-11-13
Anticipated expiration: 2023-06-06

Abstract

The utility model discloses a spray-type evaporative cooling transformer which comprises a case body, an iron core, a coil, a pump, a condenser, a first pipeline and a second pipeline, wherein the iron core and the coil are arranged in the case body. The side face of the case body is communicated with the condenser, a sealing opening is formed in the bottom of the case body, and an outlet used for cooling media to flow out is formed in the center of the bottom of the case body, one end of the second pipeline is communicated with the outlet of the pump, the other end of the second pipeline vertically penetrates through the sealing opening and the port of the end extends to a position above the iron core and the coil, and the inlet of the pump is connected to the outlet of the bottom of the case body through the first pipeline in a sealing mode. The spray-type evaporative cooling transformer is simple in structure, high in heat dissipation efficiency, capable of carrying out heat dissipation in an infinite loop mode, low in cost and easy to maintain.

Description

A kind of spray type evaporation and cooling transformer

Technical field

The utility model relates to a kind of spray type evaporation and cooling transformer.

Background technology

Along with the deepening continuously and develop of power industry, power transformer, as a kind of visual plant in electric power system, is widely applied in the power engineering field.In the transformer running, the winding of transformer-cabinet inside and meeting unshakable in one's determination produce loss, the heat part that loss produces has been used for promoting winding and own temperature unshakable in one's determination, another part is passed to the casing wall by transformer oil with convection current and heat conducting mode, thereby the part temperatures such as the pasta of transformer and winding are raise.In the situation that electric pressure is identical, cube being directly proportional of the loss of transformer and its linear dimension, and square being directly proportional of the cooling capacity on transformer radiator surface and its linear dimension.Under certain control temperature requirement, the planomural fuel tank of the transformer that single-machine capacity is larger can not dissipate the net quantity of heat of its generation in service, and the rising of transformer operating temperature directly has influence on the performance, volume, weight, cost, life-span of equipment, the fail safe of energy-conservation and operation.Can make the too high aging quickening of insulating part that causes its transformer inside of winding temperature of transformer if do not take measures, insulation life shortens, and transformer can't normally move.In addition, continuous increase along with the transformer single-machine capacity, the weight and volume of transformer also will increase thereupon, but be subject to the restriction of floor space and transport capacity, the weight and volume of transformer can not increase always, therefore, how to improve the heat-sinking capability of transformer, oil temperature while reducing operation is transformer safe operation and to the key factor of large capacity development.

Evaporative cooling is as a kind of efficient novel cooling technology, and the heat that the latent heat of vaporization when it evaporates according to coolant is taken away main equipment makes its cooling.Adopting the evaporative cooling cooling is the significant improvement of traditional types of cooling such as present air cooling, water-cooled and oil cooling, as a kind of efficient cooling technology, its economy and fail safe are far superior to the latter, mainly have: flexible arrangement (transformer body is installed on underground, cooling device is installed on earth's surface); Heat exchange efficiency is high, the advantage such as lower the temperature remarkable.Therefore,, based on evaporation cooling technique, select suitable cold-producing medium, design suitable structure, making strong, the safe and reliable transformer of heat radiation is the direction that the applicant is devoted to make great efforts.

Summary of the invention

The purpose of this utility model is to provide a kind of spray type evaporation and cooling transformer, utilizes pump that coolant is transported to coil and the iron core top sprays, and realizes from top to down cooling heat dissipation, simple in structure, radiating efficiency is high, and can Infinite Cyclic heat radiation, cost is low and be easy to safeguard.

The technical scheme that realizes above-mentioned purpose is:

A kind of spray type evaporation and cooling transformer, the iron core and the coil that comprise casing and be placed in box house, described spray type evaporation and cooling transformer also comprise pump, condenser, the first pipeline and second pipe, wherein:

Described condenser is connected in the side of described casing, and a seal is offered in the bottom of described casing, and the bottom centre of described casing offers one for the outlet of flowing out coolant;

One termination of described second pipe is led to described delivery side of pump, and the other end vertically passes described seal and this end port and extends to the top of described iron core and coil;

The import of described pump connects the outlet of described bottom half by described the first seal for pipe joints.

Above-mentioned spray type evaporation and cooling transformer, wherein, described coolant is sulphur hexafluoride (SF6).

Above-mentioned spray type evaporation and cooling transformer, wherein, described condenser is provided with upper and lower two import and export, and upper and lower two outlets are offered in a side of described casing, are respectively used to seal two import and export of connecting described condenser.

The beneficial effects of the utility model are: be full of non-solidifying gas (for example SF6) in the utility model in transformer-cabinet, as coolant, coolant is transported to coil with pump and the iron core top sprays, when cooling fluid flows along heating surface, the heat absorption evaporation, evenly cooling.Steam is condensed into liquid after touching cold tank wall or entering condenser, flows back to bottom half periodic duty again, the Infinite Cyclic heat radiation.Simultaneously, the utility model is simple in structure, and radiating efficiency is high, and cost is low and be easy to safeguard.

Description of drawings

Fig. 1 is the structural representation of spray type evaporation and cooling transformer of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

See also Fig. 1, spray type evaporation and cooling transformer of the present utility model, the iron core 2 and the coil 3 that comprise vertical casing 1 and be placed in casing 1 inside, also comprise pump 4, condenser 5, the first pipeline 6 and second pipe 7, wherein:

The inside of casing 1 is full of non-solidifying gas as coolant, and in the present embodiment, this coolant is sulphur hexafluoride; A seal 11 is offered in the bottom of casing 1, and the bottom centre of casing 1 offers one for the outlet 12 of flowing out coolant; Condenser 5 is connected in the side of casing 1, condenser 5 is provided with upper and lower two and imports and exports 51,52, upper and lower two outlets 13,14 are offered in the side that casing 1 and condenser 5 join, and these upper and lower two outlets 13,14 corresponding two of sealing connection condenser 5 separately import and export 51,52;

The outlet of the logical pump 4 of one termination of second pipe 7, the other end vertically passes the seal 11 of casing 1 bottom and the top that this end port extends to iron core 2 and coil 3;

The import of pump 4 is by the be tightly connected outlet 12 of casing 1 bottom centre of the first pipeline 6.

Principle of the present utility model: the non-solidifying gas that is full of in casing 1 has guaranteed that transformer has enough insulation conditions when cold operation, and coolant is transported to coil 3 by second pipe 7 with pump 4 and iron core 2 tops spray.When cooling fluid flows along heating surface, the heat absorption evaporation, heating surface is obtained cooling, after steam touches cold tank wall or enters condenser 5, heat is fallen apart and be condensed into simultaneously liquid in environment, flow back to casing 1 bottom, by exporting the 12 and first pipeline 6, enter pump 4, periodic duty again, thus carry out efficient and the heat radiation of Infinite Cyclic ground.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1. spray type evaporation and cooling transformer, the iron core and the coil that comprise casing and be placed in box house, is characterized in that, described spray type evaporation and cooling transformer also comprises pump, condenser, the first pipeline and second pipe, wherein:

2. spray type evaporation and cooling transformer according to claim 1, is characterized in that, described coolant is sulphur hexafluoride.

3. spray type evaporation and cooling transformer according to claim 1, is characterized in that, described condenser is provided with upper and lower two import and export, and upper and lower two outlets are offered in a side of described casing, is used for two import and export that described condenser is connected in sealing respectively.