CN210722688U - Water circulation cooling device for transformer - Google Patents

Abstract

The utility model relates to a transformer water circulative cooling device, including a plurality of settings at transformer radiator vane water cooling jacket, fin all around and be located the water tank of fin below, the water inlet and the water tank of water cooling jacket pass through the cold water pipe intercommunication, and the delivery port of water cooling jacket and the water inlet of fin pass through the hot-water line intercommunication, the delivery port and the water tank of fin pass through the back flow intercommunication, the one end that the cold water pipe is close to the water tank is located under the surface of water tank and installs the water pump. The utility model discloses can carry out even heat dissipation to the transformer, make each position heat dissipation of transformer balanced, compensate the not enough of traditional hydrologic cycle radiator, promote the radiating advantage of hydrologic cycle greatly, through the utility model discloses a hydrologic cycle is to the transformer heat dissipation, has reduced the operating pressure of transformer, has improved the overload capacity of transformer, has prolonged the life of transformer.

Description

Water circulation cooling device for transformer

Technical Field

The utility model relates to an electrical equipment field specifically indicates a transformer water circulative cooling device.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction. The transformer mainly comprises a primary coil, a secondary coil and an iron core, and the energy loss is caused in the working process of the transformer, and the energy loss is mainly represented by converting electric quantity into heat at the positions of the coil and the iron core, so that the transformer is an electric device with huge heat productivity.

At present, the heat dissipation of the transformer mainly comprises air cooling and water cooling modes, wherein most of the water cooling devices are water pipes spirally wound on the periphery of a transformer main body, and water circulation is carried out in the water pipes by utilizing water, so that the purpose of heat dissipation of the transformer is achieved.

However, in the existing water-cooling heat dissipation device, the water flow flows along the transformer in one direction, taking the water flow flowing from bottom to top as an example: the water flow is cold water at the lowest end, and the water flow absorbs more and more heat and the temperature of the water flow is also more and more hot along with the gradual upward flow of the water flow. While at high water temperatures, the amount of heat absorbed is clearly not as great as at low water temperatures. Therefore, the heat dissipation effect of the upper part of the transformer is far inferior to that of the lower part, which causes unbalanced heat dissipation of the transformer, causes higher working pressure of the part with poor heat dissipation of the transformer, easily causes damage of the transformer, reduces the overload capacity of the transformer, and shortens the service life of the transformer. Not only seriously affecting normal use, but also even endangering property and life safety.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a transformer water circulative cooling device, each position heat dissipation that enables the transformer is balanced, has reduced the operating pressure of transformer, has improved the overload capacity of transformer, has prolonged the life of transformer.

The utility model discloses a through following technical scheme realizes, provides a transformer water circulative cooling device, including a plurality of settings at transformer radiator vane water-cooling jacket, fin all around and be located the water tank of fin below, the water inlet and the water tank of water-cooling jacket pass through the cold water pipe intercommunication, and the delivery port of water-cooling jacket and the water inlet of fin pass through the hot-water line intercommunication, the delivery port and the water tank of fin pass through the back flow intercommunication, the one end that the cold water pipe is close to the water tank is located under the surface of water tank and installs the water pump.

The water cooling jacket of this scheme is the lamellar pipeline, is equipped with first water inlet and first delivery port on the water cooling jacket, and the biggest one side of water cooling jacket area is towards the transformer, has increased the area of being heated of water cooling jacket for the heat absorption speed of water cooling jacket. The radiating fin is also a sheet-shaped pipeline, a second water inlet and a second water outlet are formed in the radiating fin, the size of the radiating fin is larger than that of the water cooling jacket, the radiating area is increased, and the radiating speed is accelerated. The height of water tank is less than the fin, makes water can flow to the water tank in from the fin under the dead weight effect, and the water tank is internal to store distilled water, can prefer to select for use many times distilled water according to the input cost. The distilled water does not contain electrolyte and impurities, does not corrode a pipeline, and prolongs the service life of equipment. And the specific heat capacity of water is larger, and the heat absorption and heat dissipation capacity is stronger, so that the cooling liquid cooled by circulating water is better. Most importantly, the distilled water is non-conductive, the electric leakage risk cannot occur, and the safety is high.

The first water inlet of the water cooling jacket is communicated with the water tank through a cold water pipe, and the water inlet end of the cold water pipe extends below the liquid level of the water tank. The first water outlet of the water cooling jacket is communicated with the second water inlet of the radiating fin through a hot water pipe. The second water outlet of the radiating fin is communicated with the water tank through a return pipe.

The shell of the water tank is fixedly connected with a water pump, the water pump is a high-pressure pump, a water outlet of the water pump is communicated with a water inlet end of the cold water pipe, a water inlet of the water pump is positioned below the liquid level of the water tank, and distilled water in the water tank is pumped into the cold water pipe through the water pump.

And optimally, the upper end of the water cooling jacket is fixedly connected with a strip-shaped fixture block with a trapezoidal section, and the lower end of the water cooling jacket is provided with a strip-shaped clamping groove matched with the strip-shaped fixture block in shape. The bar fixture block and the bar clamping groove joint of the scheme are matched, when the water cooling jacket is used, the quantity of the water cooling jacket is selected according to the volume of a transformer, the transformer can be surrounded by the water cooling jacket, the lower end of the adjacent water cooling jacket is connected end to end through the bar fixture block and the bar clamping groove, one of the first water cooling jacket is taken as an example, the adjacent second water cooling jacket above the first water cooling jacket is sleeved with the adjacent third water cooling jacket below the first water cooling jacket, the bar fixture block of the first water cooling jacket can be inserted into the bar clamping groove of the second water cooling jacket from the side surface, the bar fixture block of the third water cooling jacket can be inserted into the bar clamping groove of the first water cooling jacket from the side surface, and the bar fixture block and the bar clamping groove are. Through bar fixture block and bar draw-in groove, enable a plurality of water-cooling jacket splice one and wholly surround around the transformer.

Preferably, the strip-shaped fixture block is provided with a counter bore, the water cooling sleeve is provided with a screw hole corresponding to the counter bore, a countersunk head bolt is installed in the screw hole through internal threads, and the countersunk head bolt penetrates through the counter bore. The strip-shaped fixture block and the water cooling sleeve are connected through the countersunk head screw, and the head of the countersunk head screw can be embedded into the countersunk hole, so that the end face of the strip-shaped fixture block is a plane. When the water-cooling jacket is used, the strip-shaped clamping blocks can be mounted on the water-cooling jacket according to actual requirements, and the water-cooling jacket is convenient to mount and dismount.

Preferably, the water inlet and the water outlet of the water cooling jacket are fixedly connected with a three-way pipe, and the cold water pipe and the hot water pipe are communicated with the three-way pipe through a direct pipe. The three-way pipe has the advantages that specifications and parameters of the three-way pipe are consistent, when the water cooling sleeves are connected end to end, the three-way pipe positioned on the water inlet of the water cooling sleeve can be in butt joint end to end through the direct pipe, openings are reserved at the upper end of the uppermost three-way pipe and the lower end of the lowermost three-way pipe after butt joint, then the lower end of the lowermost three-way pipe is communicated with the cold water pipe, and the upper end of the uppermost three-way pipe is blocked through the pipe cap. The three-way pipes on the water outlets of the water cooling sleeves can be butted end to end through direct pipes, only the upper ends of the uppermost three-way pipes and the lower ends of the lowermost three-way pipes are left to be opened after the three-way pipes are butted, then the upper ends of the uppermost three-way pipes are communicated with the hot water pipe, and the lower ends of the lowermost three-way pipes are blocked through pipe caps. Through the connection, the water cooling jacket can be connected with the cold water pipe and the hot water pipe in an independent state.

Preferably, the radiating fins are sheet pipelines, and a plurality of channels communicated with the two sides are arranged on the radiating fins. The radiating fin is flaky, the contact area of the radiating fin and air is large, the contact area of the radiating fin and the air is further increased through the channel, namely the radiating area of the radiating fin is further increased, and the radiating capacity of the radiating fin is improved.

And optimally, a spraying device is arranged on one side of the water cooling jacket close to the transformer. The spraying device can automatically spray water to the shell of the transformer in the high-temperature extreme state of the transformer, the water is quickly evaporated after being sprayed to the shell of the transformer, the heat of the transformer is taken away, and the temperature reduction of the transformer is realized.

Preferably, the spraying device comprises a temperature sensor, a spraying head fixedly connected to the water cooling sleeve and communicated with the water cooling sleeve, and an electromagnetic valve arranged on the spraying head, wherein the electromagnetic valve is electrically connected with the temperature sensor. The temperature sensor is close to the transformer, the set temperature of the temperature sensor is 5-10 ℃ lower than the high-temperature limit value temperature of the transformer in the normal working state, when the temperature sensor reaches the set value, the electromagnetic valve is automatically opened, and water can be sprayed onto the shell of the transformer through the spray header from the water cooling sleeve, so that the transformer can be quickly cooled, the service life of the transformer can be further prolonged, and the danger of explosion and fire caused by transformer overload is avoided.

Preferably, the water tank is provided with an opening, the cold water pipe and the return pipe both extend into the water tank through the opening, and the cold water pipe extends below the liquid level of the distilled water in the water tank. The water tank of this scheme is just seted up open-ended ordinary box, plays the effect of storing distilled water, low cost has reduced manufacturing cost.

The utility model has the advantages that: the utility model discloses can carry out even heat dissipation to the transformer, make each position heat dissipation of transformer balanced, compensate the not enough of traditional hydrologic cycle radiator, promote the radiating advantage of hydrologic cycle greatly, through the utility model discloses a hydrologic cycle is to the transformer heat dissipation, has reduced the operating pressure of transformer, has improved the overload capacity of transformer, has prolonged the life of transformer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a schematic structural diagram of the heat sink of the present invention;

FIG. 4 is an enlarged view of section I of FIG. 1;

FIG. 5 is an enlarged view of a portion II of FIG. 2;

shown in the figure:

1. the device comprises a transformer, 2, a water cooling jacket, 3, a radiating fin, 4, a water tank, 5, a water pump, 6, a three-way pipe, 7, a cold water pipe, 8, a hot water pipe, 9, a return pipe, 10, a direct pipe, 11, a pipe cap, 12 and a spraying device.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

The utility model provides a transformer water circulative cooling device, as shown in the figure, includes a plurality of settings at 1 radiator fin of transformer surrounding water-cooling jacket 2, fin 3 and be located the water tank 4 of fin 3 below, the upper end rigid coupling cross-section of water-cooling jacket 2 be trapezoidal bar fixture block, the lower extreme be equipped with the bar draw-in groove of bar fixture block appearance adaptation. The bar fixture block cooperates with bar draw-in groove joint, when using, the quantity of water-cooling jacket 2 is selected according to transformer 1's volume, make water-cooling jacket 2 can surround transformer 1, the upper and lower end of adjacent water-cooling jacket 2 passes through bar fixture block and bar draw-in groove end to end connection, use one of them first water-cooling jacket as an example, the adjacent second water-cooling jacket in first water-cooling jacket top is sheathe in, the adjacent third water-cooling jacket in first water-cooling jacket below, the bar fixture block of first water-cooling jacket can insert the bar draw-in groove of second water-cooling jacket from the side, the bar fixture block of third water-cooling jacket can insert the bar draw-in groove of first water-cooling jacket from the side, because the cross-section of bar fixture block and bar draw-in groove is. Through bar fixture block and bar draw-in groove, enable a plurality of water-cooling jacket 2 splice into a whole and surround around transformer 1.

The strip-shaped fixture block is provided with a counter bore, the water cooling sleeve 2 is provided with a screw hole corresponding to the counter bore, a counter-bore bolt is installed in the screw hole, and the counter-bore bolt penetrates through the counter bore. The strip-shaped fixture block is connected with the water cooling sleeve through a countersunk screw, and the head of the countersunk screw can be embedded into the countersunk hole, so that the end face of the strip-shaped fixture block is a plane. When the water-cooling jacket is used, the strip-shaped clamping blocks can be mounted on the water-cooling jacket according to actual requirements, and the water-cooling jacket is convenient to mount and dismount.

The water inlet and the water tank 4 of water-cooling jacket 2 communicate through cold water pipe 7, the delivery port of water-cooling jacket 2 and the water inlet of fin 3 communicate through hot-water line 8, the delivery port and the water tank 4 of fin 3 communicate through back flow 9, the one end that cold water pipe 7 is close to water tank 4 is located under the surface of water tank 4 and installs water pump 5, water tank 4 is equipped with the opening, cold water pipe 7 all stretches into in water tank 4 through the opening with back flow 9, and under cold water pipe 7 stretched into the liquid level of water tank 4 internal water, through the aforesaid connection, rivers have formed hydrologic cycle along transformer 1.

The radiating fins 3 are sheet pipelines, and a plurality of channels communicated with the two sides are arranged on the radiating fins 3. The radiating fin 3 is fixed above the transformer 1, in the embodiment, the cold water pipe 7 and the return pipe 9 are both made of metal materials, and the radiating fin 3 is supported and fixed by the cold water pipe 7 and the return pipe 9 which are vertically arranged.

The water cooling jacket 2 is a sheet pipeline, a first water inlet and a first water outlet of a tubular joint structure are arranged on the water cooling jacket 2, one side of the water cooling jacket 2 with the largest area faces the transformer 1, the heating area of the water cooling jacket 2 is increased, and the heat absorption speed of the water cooling jacket 2 is accelerated. The first water inlet and the first water outlet are fixedly connected with a three-way pipe 6, and the cold water pipe 7 and the hot water pipe 8 are communicated with the three-way pipe 6 through a direct pipe 10.

The cooling fin 3 is also a sheet-shaped pipeline, a second water inlet and a second water outlet of the tubular joint structure are arranged on the cooling fin 3, the volume of the cooling fin 3 is larger than that of the water cooling jacket 2, the heat dissipation area is increased, and the heat dissipation speed is accelerated. The height of the water tank 4 is lower than that of the radiating fins 3, so that water can flow from the radiating fins 3 to the water tank 4 under the action of self weight, distilled water is stored in the water tank 4, and multiple times of distilled water can be preferentially selected according to the investment cost. The distilled water does not contain electrolyte and impurities, does not corrode a pipeline, and prolongs the service life of equipment. And the specific heat capacity of water is larger, and the heat absorption and heat dissipation capacity is stronger, so that the cooling liquid cooled by circulating water is better. Most importantly, the distilled water is non-conductive, the electric leakage risk cannot occur, and the safety is high.

The three-way pipe 6 positioned on the first water inlet of the water cooling sleeve 2 can be butted end to end through the direct pipe 10, only the upper end of the three-way pipe 6 positioned at the top and the lower end opening of the three-way pipe 6 positioned at the bottom are left after the butting, then the lower end of the three-way pipe 6 positioned at the bottom is communicated with the cold water pipe 7, and the upper end of the three-way pipe 6 positioned at the top is blocked through the pipe cap 11. The water inlet end of the cold water pipe 7 extends below the liquid level of the water tank 4. The three-way pipe 6 positioned on the first water outlet of the water cooling sleeve 2 can also be butted end to end through the direct pipe 10, only the upper end of the uppermost three-way pipe 6 and the lower end of the lowermost three-way pipe 6 are left to be opened after the butting, then the upper end of the uppermost three-way pipe 6 is communicated with the hot water pipe 8, and the lower end of the lowermost three-way pipe 6 is blocked through the pipe cap 11. The hot water pipe 8 is communicated with the second water inlet of the radiating fin 3. The second water outlet of the radiating fin 3 is communicated with the water tank 4 through a return pipe 9. In this embodiment, cold water pipe 7 and hot-water line 8 are as main water pipe, and the first water inlet and the first delivery port of water cooling jacket 2 and correspond three-way pipe 6 and regard as a water pipe, and water cooling jacket 2 is provided with a plurality of, and the first water inlet of water cooling jacket 2 all communicates with cold water pipe 7 through corresponding three-way pipe 6, and the first delivery port of water cooling jacket 2 all communicates with hot-water line 8 through corresponding three-way pipe 6. Which is equivalent to a plurality of water cooling sleeves 2 connected in parallel between a cold water pipe 7 and a hot water pipe 8.

A water pump 5 is fixedly connected to the shell of the water tank 4, the water pump 5 is a high-pressure pump, the water outlet of the water pump 5 is communicated with the water inlet end of the cold water pipe 7, the water inlet of the water pump 5 is located below the liquid level of the water tank 4, and distilled water in the water tank 4 is pumped into the cold water pipe 7 through the water pump 5.

The radiating fins 3 are sheet-shaped, the contact area of the radiating fins 3 with air is large, the contact area of the radiating fins 3 with air is further increased through the channels, namely the radiating area of the radiating fins 3 is further increased, and the radiating capacity of the radiating fins 3 is improved.

The spraying device 12 is arranged on one side, close to the transformer 1, of the water cooling sleeve 2, the spraying device 12 can automatically spray water to the shell of the transformer 1 in a high-temperature extreme state of the transformer 1, the water is sprayed to the shell of the transformer 1 and then quickly evaporates, heat of the transformer 1 is taken away, and cooling of the transformer 1 is achieved.

The spraying device 12 comprises a temperature sensor, a spraying head fixedly connected to the water cooling jacket 2 and communicated with the water cooling jacket 2, and an electromagnetic valve arranged on the spraying head, wherein the electromagnetic valve is electrically connected with the temperature sensor. The temperature sensor is close to the transformer 1, the set temperature of the temperature sensor is 5-10 ℃ lower than the high-temperature limit value temperature of the transformer 1 in the normal working state, when the temperature sensor reaches the set value, the electromagnetic valve is automatically opened, and water can be sprayed onto the shell of the transformer 1 from the water cooling jacket 2 through the spray header, so that the rapid cooling of the transformer is realized, the service life of the transformer 1 is further prolonged, and the danger of explosion and fire caused by overload of the transformer 1 is avoided.

The water tank 4 is a common tank body with an opening, plays a role in storing distilled water, is low in cost and reduces the manufacturing cost.

When using, start water pump 5, in water pump 5 takes out cold water pipe 7 with the distilled water of the interior normal atmospheric temperature of water tank 4, rivers correspond three-way pipe 6 promptly from cold water pipe 7 through the first water inlet of water-cooling jacket 2 in flowing into water-cooling jacket 2, water-cooling jacket 2 is the aluminum alloy material, and the aluminum alloy has good heat conductivity. Heat generated by the transformer 1 is transferred to water flow through the water cooling sleeve 2, water flow is changed from normal temperature water to hot water, and the hot water flows into the hot water pipe 8 through the first water outlet of the water cooling sleeve 2 and the corresponding three-way pipe 6. Water can flow from the hot water pipe 8 through the second inlet of the cooling fin 3 into the cooling fin 3. The material of fin 3 is also the aluminum alloy material, and hot water is spread in fin 3 internal flatness, forms the platykurtic rivers, and with the air abundant contact, the external world that makes the heat fully distribute, therefore hot water is cooled down into normal atmospheric temperature water from fin 3, and the rivers after the heat dissipation flow into back flow 9 from fin 3 through the second delivery port of fin 3 in, rivers flow back to water tank 4 through back flow 9. Through the process, distilled water forms a circulation, and the purpose of cooling the transformer 1 through water cooling circulation is achieved.

When the temperature sensor senses that the temperature of the transformer 1 reaches a set value, the electromagnetic valve is automatically opened, and water can be sprayed to the shell of the transformer 1 through the spray header from the water cooling jacket 2, so that the rapid cooling of the transformer is realized, the service life of the transformer 1 is further prolonged, and the danger of explosion and fire caused by overload of the transformer 1 is avoided.

The utility model discloses can carry out even heat dissipation to the transformer, make each position heat dissipation of transformer balanced, compensate the not enough of traditional hydrologic cycle radiator, promote the radiating advantage of hydrologic cycle greatly, through the utility model discloses a hydrologic cycle is to the transformer heat dissipation, has reduced the operating pressure of transformer, has improved the overload capacity of transformer, has prolonged the life of transformer.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a transformer water circulative cooling device which characterized in that: including a plurality of water cooling jacket (2), fin (3) that set up around transformer (1) and water tank (4) that are located fin (3) below, the water inlet and water tank (4) of water cooling jacket (2) are through cold water pipe (7) intercommunication, and the delivery port of water cooling jacket (2) and the water inlet of fin (3) pass through hot-water line (8) intercommunication, the delivery port and the water tank (4) of fin (3) are through back flow (9) intercommunication, the one end that cold water pipe (7) are close to water tank (4) is located under the surface of water tank (4) and installs water pump (5).

2. The transformer water circulation cooling device of claim 1, wherein: the upper end of the water cooling sleeve (2) is fixedly connected with a strip-shaped fixture block with a trapezoidal cross section, and the lower end of the water cooling sleeve is provided with a strip-shaped clamping groove matched with the shape of the strip-shaped fixture block.

3. The transformer water circulation cooling device of claim 2, wherein: the water inlet and the water outlet of the water cooling jacket (2) are fixedly connected with a three-way pipe (6), and the cold water pipe (7) and the hot water pipe (8) are communicated with the three-way pipe (6) through a direct pipe (10).

4. The transformer water circulation cooling device of claim 1, wherein: the radiating fins (3) are sheet pipelines, and a plurality of channels communicated with the two sides are arranged on the radiating fins (3).

5. The transformer water circulation cooling device of claim 1, wherein: and a spraying device (12) is arranged on one side of the water cooling jacket (2) close to the transformer (1).

6. The transformer water circulation cooling device of claim 5, wherein: the spraying device (12) comprises a temperature sensor, a spraying head fixedly connected to the water cooling jacket (2) and communicated with the water cooling jacket (2), and an electromagnetic valve arranged on the spraying head, wherein the electromagnetic valve is electrically connected with the temperature sensor.

7. The transformer water circulation cooling device of claim 1, wherein: the water tank (4) is provided with an opening, the cold water pipe (7) and the return pipe (9) both extend into the water tank (4) through the opening, and the cold water pipe (7) extends below the liquid level of water in the water tank (4).

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