CN218676711U - Transformer cooling device - Google Patents

Abstract

The utility model relates to a transformer cooling device in transformer cooling technical field, including transformer body, control circuit, still include the mounting bracket, transformer body is installed to a mounting bracket lateral part, and another lateral part is installed and is carried out refrigerated circulative cooling mechanism to transformer body, the mounting bracket corresponds the position that is located circulative cooling mechanism top and installs and drench and spout the mechanism. The utility model discloses because the parallelly connected being equipped with of radiator is two sets of, consequently can play redundant effect, after one of them set of damage, another group can continue work, guarantees that the inside oil temperature of transformer body can not be too high, can also make two sets of radiators simultaneous workings according to the inside oil temperature of transformer body simultaneously, has guaranteed the cooling effect.

Description

Transformer cooling device

Technical Field

The utility model relates to a transformer cooling technology field especially relates to a transformer cooling device.

Background

The transformer is one of main equipment of a transformer substation and is used for converting high voltage into voltages of all levels required by users. However, in the daily operation of the transformer, a large amount of heat is generated due to the loss of the winding and the iron core of the transformer, and the generated heat needs to be timely dissipated through a cooling measure.

However, in the conventional transformer cooling measures, such as an oil-immersed circulating transformer cooler, the transformer is cooled by a circulating cooling mode. This kind of cooling mode mainly relies on and utilizes transformer self fin and the lower air of temperature in the environment to carry out the convection cycle and give off the heat, but most radiating efficiency of this kind of cooling mode is low, especially in high temperature environment, ambient temperature itself is higher, and radiating efficiency then is more low.

For this reason, the existing chinese patent publication No. CN107680781B discloses a transformer cooling apparatus, which specifically includes a cooling tank, a first delivery pipe, a second delivery pipe, and a valve adjusting device, and cools a transformer through a circulation flow of a cooling medium, and specifically discloses that the cooling tank includes a cooler, and a cooling fin is disposed on an outer wall of the cooling tank, but the cooler in the apparatus does not disclose any information about using water as a coolant, so that the cooler in the apparatus can be considered as an air heat exchange device, and therefore the apparatus has the following defects: 1. the cooler has low heat dissipation efficiency by utilizing air, and particularly in a high-temperature environment, the desired heat dissipation effect is often difficult to achieve by only depending on the heat dissipation capacity of the air heat exchange device.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a transformer cooling device for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a transformer cooling device comprises a transformer body, a control circuit and a mounting frame, wherein the transformer body is mounted on one side part of the mounting frame, a circulating cooling mechanism for cooling the transformer body is mounted on the other side part of the mounting frame, and a spraying mechanism is mounted on the mounting frame corresponding to the position above the circulating cooling mechanism;

the circulating cooling mechanism comprises an oil tank, a circulating oil pump, a first oil way and a second oil way, an oil inlet of the circulating oil pump is correspondingly communicated with an oil outlet of the transformer body, and the oil outlet of the circulating oil pump is provided with the first oil way; the oil outlet of the oil tank is correspondingly communicated with the oil inlet of the transformer body, the oil inlet of the oil tank is provided with a second oil path, two groups of radiators are correspondingly communicated between one end of the first oil path, which is far away from the circulating oil pump, and one end of the second oil path, which is far away from the oil tank, and the two groups of radiators are arranged in parallel, and control valves are arranged at oil inlets and oil outlets of the radiators;

the oil tank, the circulating oil pump and the radiator are all arranged on the mounting frame;

the spraying mechanism comprises a water tank, a water pump, a return pipe and spraying pipes, wherein a water inlet of the water pump is correspondingly communicated with a water outlet of the water tank, two ends of the return pipe are respectively correspondingly communicated with a water outlet of the water pump and a water inlet of the water tank, the return pipe is connected with a first valve in series, two spraying pipes are correspondingly communicated at the position of the return pipe at the upstream of the first valve and are arranged in parallel, spray heads capable of spraying radiators of corresponding groups are arranged at the water outlets of the two spraying pipes, and a second valve is connected at the position of the spraying pipe at the upstream of the corresponding spray head in series;

the water tank, the water pump and the spray head are all mounted on the mounting frame, and the return pipe is spirally wound with the first oil way at the position corresponding to the upstream of the spraying pipe.

Preferably, the inner side wall and the outer side wall of the transformer body are uniformly provided with radiating fins.

Preferably, a first temperature sensor for detecting the oil temperature is arranged at an oil outlet of the circulating oil pump, a second temperature sensor for detecting the oil temperature is arranged at an oil inlet of the oil tank, a control valve of the radiator is an electric control valve, and the control valve, the second temperature sensor and the first temperature sensor are all in signal connection with a control circuit.

Preferably, the first valve and the second valve are both electric control valves, and the first valve and the second valve are both in signal connection with the control circuit.

Preferably, the top of the mounting frame is provided with a vertically-inclined rain receiving plate, the top surface of the water tank is provided with an opening, the opening is provided with a filter screen structure, the lower end of the rain receiving plate is correspondingly inserted into the opening of the water tank, and a water flowing gap is formed between the upper plate surface of the lower end of the rain receiving plate and the outer edge of the opening of the water tank.

Preferably, two side parts of the rain-receiving plate are provided with upward flanges.

Preferably, a gap exists between the water outlet of the water tank and the bottom of the inner cavity of the water tank, and a filtering device is arranged at the water outlet of the water tank.

Preferably, the inside of the spiral winding part of the backflow pipe and the first oil way is provided with a radiating pipe tightly attached to the backflow pipe and the first oil way, the end part of the radiating pipe is correspondingly arranged on the mounting frame, and the inner cavity of the radiating pipe is provided with a plurality of radiating fins axially arranged along the circumferential direction of the radiating pipe.

Preferably, the radiating fin is of a Y-shaped structure in cross section, and two end faces of the forked end of the radiating fin are correspondingly attached to the inner wall of the radiating pipe.

Preferably, there are at least two radiators in each group, and all radiators of the group are arranged in parallel or in series.

Has the advantages that:

1. due to the arrangement of the spraying mechanism, when the external temperature is too high, the heat dissipation of the radiator is not enough to meet the requirement of the transformer body, water in the return pipe can be in a flowing state through the water pump, and then heat exchange is carried out through the mutual spiral winding part of the return pipe and the first oil way, so that the cooling efficiency of the oil temperature in the transformer body is further improved; the spray pipes can be used for spraying water to the surfaces of the corresponding radiating fins of the radiator, so that the radiating efficiency of the radiator is improved according to the principle of evaporation and heat absorption;

2. because the two groups of radiators are connected in parallel, a redundancy effect can be achieved, when one group is damaged, the other group can continue to work, the oil temperature in the transformer body is not too high, meanwhile, the two groups of radiators can work simultaneously according to the oil temperature in the transformer body, and the cooling effect is guaranteed;

3. due to the arrangement of the positions of the rain plates, the rain plates can collect rainwater in rainy days and guide the rainwater to the water tank, the function of saving water is achieved, and the transformer body, the circulating cooling mechanism and the spraying mechanism can be shaded in fine days, so that the transformer body and the circulating cooling mechanism are prevented from being irradiated by sunlight, the surface temperature of the transformer body and the circulating cooling mechanism is increased, and the internal temperature of the transformer body is higher.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

fig. 2 is a schematic structural view of another view angle of the present invention;

FIG. 3 is a schematic view of a partial structure of the first oil path, the return pipe and the heat dissipating pipe of the present invention;

fig. 4 is a flow chart of the middle circulation cooling mechanism and the shower mechanism of the present invention.

The reference numerals are illustrated below:

1. a transformer body; 11. heat dissipation fins; 2. a mounting frame; 3. a circulating cooling mechanism; 31. an oil tank; 311. a second temperature sensor; 32. a circulating oil pump; 321. a first temperature sensor; 33. a first oil passage; 34. a second oil passage; 35. a heat sink; 4. a spraying mechanism; 41. a water tank; 42. a water pump; 43. a return pipe; 431. a first valve; 44. spraying pipes; 441. a second valve; 45. a spray head; 5. a rain plate is connected; 6. a radiating pipe; 61. and a heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In a first embodiment, as shown in fig. 1 to 4, a transformer cooling device includes a transformer body 1, a control circuit, and an installation frame 2, where the transformer body 1 is installed at one side of the installation frame 2, a circulating cooling mechanism 3 for cooling the transformer body 1 is installed at the other side of the installation frame 2, and a spraying mechanism 4 is installed at a position of the installation frame 2 corresponding to a position above the circulating cooling mechanism 3;

according to the requirement, the inner side wall and the outer side wall of the transformer body 1 are uniformly provided with the heat dissipation fins 11, so that the heat dissipation effect of the transformer body 1 can be improved;

the circulating cooling mechanism 3 includes an oil tank 31, a circulating oil pump 32, a first oil path 33, and a second oil path 34, and the circulating oil pump 32 is a shield pump as required; an oil inlet of the circulating oil pump 32 is correspondingly communicated with an oil outlet of the transformer body 1, and an oil outlet of the circulating oil pump 32 is provided with a first oil path 33; an oil outlet of the oil tank 31 is correspondingly communicated with an oil inlet of the transformer body 1, a second oil path 34 is arranged at the oil inlet of the oil tank 31, two groups of radiators 35 are correspondingly communicated between one end of the first oil path 33 departing from the circulating oil pump 32 and one end of the second oil path 34 departing from the oil tank 31, the two groups of radiators 35 are arranged in parallel, and control valves are arranged at oil inlets and oil outlets of the radiators 35;

at least two radiators 35 are arranged in each group as required, and all the radiators 35 in the group are arranged in parallel or in series;

wherein, the oil tank 31, the circulating oil pump 32 and the radiator 35 are all arranged on the mounting frame 2;

when the heat sink 35 itself does not have a heat dissipation fan, the heat dissipation efficiency of the heat sink 35 can be improved by installing the fan at a position of the mounting bracket 2 corresponding to the heat sink 35;

in this way, because two groups of radiators 35 are arranged in parallel, a redundancy effect can be achieved, when one group is damaged, the other group can continue to work, the oil temperature in the transformer body 1 is not too high, and meanwhile, the two groups of radiators 35 can work simultaneously according to the oil temperature in the transformer body 1, so that the cooling effect is guaranteed;

the spraying mechanism 4 comprises a water tank 41, a water pump 42, a return pipe 43 and spraying pipes 44, wherein a water inlet of the water pump 42 is correspondingly communicated with a water outlet of the water tank 41, two ends of the return pipe 43 are respectively correspondingly communicated with a water outlet of the water pump 42 and a water inlet of the water tank 41, the return pipe 43 is connected in series with a first valve 431, the position, located at the upstream of the first valve 431, of the return pipe 43 is correspondingly communicated with two spraying pipes 44, the two spraying pipes 44 are arranged in parallel, the water outlets of the two spraying pipes 44 are respectively provided with a spray head 45 capable of spraying the corresponding group of radiators 35, and the position, located at the upstream of the corresponding spray head 45, of the spraying pipes 44 is connected in series with a second valve 441;

wherein, the water tank 41, the water pump 42 and the spray head 45 are all arranged on the mounting frame 2, and the position of the return pipe 43 corresponding to the upstream of the spray pipe 44 is spirally wound with the first oil path 33; according to the requirement, the pipe material at the mutual spiral winding position of the return pipe 43 and the first oil path 33 is an aluminum or copper pipe material;

as required, the spray head 45 is an atomizing spray head;

due to the arrangement of the spraying mechanism 4, when the external temperature is too high, the heat dissipation of the radiator 35 is not enough to meet the requirement of the transformer body 1, the water in the return pipe 43 can be in a flowing state through the water pump 42, and then the heat exchange is carried out through the mutual spiral winding part of the return pipe 43 and the first oil path 33, so that the cooling efficiency of the oil temperature in the transformer body 1 is further improved; and the spray nozzles 44 can be used for spraying water to the surfaces of the radiating fins of the corresponding radiator 35 by the spray nozzles 45, so that the radiating efficiency of the radiator 35 is improved according to the principle of evaporation and heat absorption.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 4, a first temperature sensor 321 for detecting the oil temperature is disposed at the oil outlet of the circulating oil pump 32, a second temperature sensor 311 for detecting the oil temperature is disposed at the oil inlet of the oil tank 31, the control valve of the radiator 35 is an electric control valve, and the control valve, the second temperature sensor 311 and the first temperature sensor 321 are all in signal connection with a control circuit;

by the arrangement, the heat dissipation efficiency of the radiators 35 can be known according to the feedback of the oil temperature detected by the first temperature sensor 321 and the second temperature sensor 311, so that whether the two groups of radiators 35 need to work simultaneously or the working groups of the radiators 35 are changed can be automatically controlled, and the temperature of the oil entering the transformer body 1 is not too high;

according to the requirement, the first valve 431 and the second valve 441 are both electric control valves, and the first valve 431 and the second valve 441 are both in signal connection with a control circuit;

the arrangement can automatically adjust the closing states of the first valve 431 and the second valve 441 by detecting the feedback of the oil temperature through the first temperature sensor 321 and the second temperature sensor 311, thereby realizing the function of automatic control;

according to the requirement, a water level sensor for detecting the water level is arranged in the inner cavity of the water tank 41; according to the needs, the water pump 42 can also be correspondingly communicated with an underground water source, so that when the water quantity in the water tank 41 is less or not, the underground water source can be pumped by the water pump 42, and the normal work of the spraying mechanism 4 is ensured.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 1-2, the top of the mounting frame 2 is provided with a rain-receiving plate 5 which is inclined up and down, the top surface of the water tank 41 is provided with an opening, the opening is provided with a filter screen structure, the lower end part of the rain-receiving plate 5 is correspondingly inserted into the opening of the water tank 41, and a water flowing gap is formed between the upper plate surface of the lower end part of the rain-receiving plate 5 and the outer edge of the opening of the water tank 41;

due to the arrangement of the position of the rain receiving plate 5, the rain receiving plate 5 can collect rainwater in rainy days and guide the rainwater into the water tank 41, so that the function of saving water is achieved, and the transformer body 1, the circulating cooling mechanism 3 and the spraying mechanism 4 can be shaded in sunny days, so that the sunlight is prevented from irradiating the transformer body 1 and the circulating cooling mechanism 3, the surface temperature of the transformer body 1 and the circulating cooling mechanism 3 is prevented from rising, and the internal temperature of the transformer body 1 is further high;

according to the requirement, two sides of the rain-receiving plate 5 are provided with upward flanges;

according to the requirement, a gap exists between the water outlet of the water tank 41 and the bottom of the inner cavity of the water tank 41, and a filtering device is arranged at the water outlet of the water tank 41.

In the fourth embodiment, on the basis of the first embodiment, as shown in fig. 3, a heat dissipation tube 6 tightly attached to the return tube 43 and the first oil path 33 is disposed inside the spirally wound portion of the return tube 43 and the first oil path 33, and the end portion of the heat dissipation tube 6 is correspondingly mounted on the mounting frame 2, and a plurality of heat dissipation fins 61 are uniformly spaced and annularly disposed along the axial direction of the inner cavity of the heat dissipation tube 6 along the circumferential direction thereof;

the arrangement can fix the spiral parts of the return pipe 43 and the first oil path 33 through the radiating pipe 6, so as to ensure that the spiral parts of the return pipe 43 and the first oil path 33 are tightly attached to each other, thereby improving the heat transfer effect of the return pipe 43 and the first oil path 33, and meanwhile, the radiating pipe 6 also indirectly increases the contact area between the spiral parts of the return pipe 43 and the first oil path 33;

according to the requirement, the pipe body of the radiating pipe 6 is provided with a spiral groove which is matched with the spiral part of the return pipe 43 and the first oil path 33 simultaneously;

if necessary, the cross section of the heat sink 61 has a Y-shaped structure, and both end faces of the branched end of the heat sink 61 are correspondingly attached to the inner wall of the heat pipe 6.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a transformer cooling device, includes transformer body (1), control circuit, its characterized in that: the transformer is characterized by further comprising an installation frame (2), wherein a transformer body (1) is installed at one side part of the installation frame (2), a circulating cooling mechanism (3) for cooling the transformer body (1) is installed at the other side part of the installation frame (2), and a spraying mechanism (4) is installed at a position, corresponding to the position above the circulating cooling mechanism (3), of the installation frame (2);

the circulating cooling mechanism (3) comprises an oil tank (31), a circulating oil pump (32), a first oil way (33) and a second oil way (34), an oil inlet of the circulating oil pump (32) is correspondingly communicated with an oil outlet of the transformer body (1), and the oil outlet of the circulating oil pump (32) is provided with the first oil way (33); an oil outlet of the oil tank (31) is correspondingly communicated with an oil inlet of the transformer body (1), a second oil path (34) is arranged at the oil inlet of the oil tank (31), two groups of radiators (35) are correspondingly communicated between one end of the first oil path (33) departing from the circulating oil pump (32) and one end of the second oil path (34) departing from the oil tank (31), the two groups of radiators (35) are arranged in parallel, and control valves are arranged at oil inlets and oil outlets of the radiators (35);

the oil tank (31), the circulating oil pump (32) and the radiator (35) are all mounted on the mounting frame (2);

the spraying mechanism (4) comprises a water tank (41), a water pump (42), a return pipe (43) and spraying pipes (44), wherein a water inlet of the water pump (42) is correspondingly communicated with a water outlet of the water tank (41), two ends of the return pipe (43) are respectively correspondingly communicated with a water outlet of the water pump (42) and a water inlet of the water tank (41), the return pipe (43) is connected with a first valve (431) in series, the return pipe (43) is correspondingly communicated with two spraying pipes (44) at the position upstream of the first valve (431), the two spraying pipes (44) are arranged in parallel, water outlets of the two spraying pipes (44) are respectively provided with a spray head (45) capable of spraying the corresponding group of the radiator (35), and the spraying pipes (44) are connected with a second valve (441) at the position upstream of the corresponding spray head (45) in series;

the water tank (41), the water pump (42) and the spray head (45) are all mounted on the mounting frame (2), and the return pipe (43) is spirally wound with the first oil way (33) at a position corresponding to the upstream of the spray pipe (44).

2. A transformer cooling arrangement according to claim 1, characterised in that: the inner side wall and the outer side wall of the transformer body (1) are uniformly provided with radiating fins (11).

3. A transformer cooling arrangement according to claim 1, characterised in that: the oil outlet of the circulating oil pump (32) is provided with a first temperature sensor (321) for detecting the oil temperature, the oil inlet of the oil tank (31) is provided with a second temperature sensor (311) for detecting the oil temperature, a control valve of the radiator (35) is an electric control valve, and the control valve, the second temperature sensor (311) and the first temperature sensor (321) are all in signal connection with a control circuit.

4. A transformer cooling arrangement according to claim 1, characterised in that: the first valve (431) and the second valve (441) are both electric control valves, and the first valve (431) and the second valve (441) are both in signal connection with a control circuit.

5. A transformer cooling arrangement according to claim 1, characterised in that: the rain-receiving plate is characterized in that a rain-receiving plate (5) which is inclined up and down is arranged at the top of the mounting frame (2), an opening is formed in the top surface of the water tank (41), a filter screen structure is arranged at the opening, the lower end of the rain-receiving plate (5) is correspondingly inserted into the opening of the water tank (41), and a water flowing gap exists between the upper plate surface of the lower end of the rain-receiving plate (5) and the outer edge of the opening of the water tank (41).

6. The transformer cooling apparatus according to claim 5, wherein: and two side parts of the rain receiving plate (5) are provided with upward flanges.

7. A transformer cooling arrangement according to claim 5, characterised in that: a gap is formed between the water outlet of the water tank (41) and the bottom of the inner cavity of the water tank (41), and a filtering device is arranged at the water outlet of the water tank (41).

8. A transformer cooling arrangement according to claim 1, wherein: back flow (43) and first oil circuit (33) mutual spiral winding portion inboard are equipped with back flow (43) and the cooling tube (6) of closely laminating of first oil circuit (33), and cooling tube (6) tip correspondence is installed in mounting bracket (2), cooling tube (6) inner chamber is equipped with a plurality of fin (61) of setting along its axial along its circumference evenly spaced ring.

9. A transformer cooling arrangement according to claim 8, characterised in that: the Y-shaped structure of the section of the radiating fin (61) is characterized in that two end faces of the bifurcated end of the radiating fin (61) are correspondingly attached to the inner wall of the radiating pipe (6).

10. A transformer cooling arrangement according to claim 1, characterised in that: at least two radiators (35) are arranged in each group, and all the radiators (35) in the group are arranged in parallel or in series.

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