Oil circulating device of transformer for hydropower station

Abstract

The utility model relates to the technical field of oil circulation, and discloses an oil circulation device of a transformer for a hydropower station, which comprises a water segregator, a cooling pipe, an oil chamber, an oil-submerged pump, a first storage barrel and a second storage barrel, the output end of the water segregator is fixedly connected with the input end of the cooling pipe, the cooling pipe penetrates and extends to the front end of the oil chamber, and the oil chamber is fixedly connected with the oil-submerged pump. The lower portion of the front end of the cooling pipe is fixedly connected with a spiral pipe, and an air blower is fixedly installed at the upper end of the spiral pipe through a fixing frame. The water collector is fixedly mounted at the lower end of the spiral pipe; the semiconductor cooler is fixedly mounted at the lower end in the first storage barrel; and the driving motor is fixedly installed at the upper end of the interior of the first storage barrel through an inner frame, and a stirring frame is installed at the output end of the driving motor. And air cooling is matched with semiconductor refrigeration, so that the cooling efficiency of liquid water is improved, and the cooling efficiency of oil liquid is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil liquid circulation technical field, concretely is a transformer's oil liquid circulation device for hydroelectric station. BACKGROUND

[0002] The transformer for hydroelectric station is one of the core equipment in the electrical system of the hydroelectric station, and is mainly used for voltage conversion and transmission of electric energy.

[0003] The oil liquid circulation device of the transformer for hydroelectric station is the key system to ensure safe and efficient operation of the transformer, and its core function is to realize heat dissipation by forced oil circulation, reduce operating temperature, and the oil liquid needs to be cooled after heat dissipation, and the usual method is to guide the oil liquid into the oil chamber, the inside of the oil chamber is distributed with pipes, and liquid water flows in the pipe, and the liquid water is cooled by the liquid water, since the water quality of tap water does not meet the high water quality requirement of the oil liquid circulation device of the hydroelectric station, so the liquid water needs to be cooled and recycled.

[0004] The pipe inside the common oil chamber adopts the way of extending the pipeline path to increase the heat exchange area, but the circulating water is heated after heat exchange with the oil liquid, and the cooling efficiency of the liquid water by the air flow generated by the fan is low, if the liquid water is put into circulation use when the temperature of the liquid water is not low, the cooling efficiency of the oil liquid will be affected, therefore, a kind of oil liquid circulation device for transformer of hydroelectric station is proposed. CONTENT OF THE UTILITY MODEL

[0005] (I) technical problem solved

[0006] In view of the deficiency of prior art, the utility model provides an oil liquid circulation device for transformer of hydroelectric station to solve the problems in the background art.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: an oil liquid circulation device for transformer of hydroelectric station, comprising:

[0009] The output end of the water distributor is fixedly connected with the input end of the cooling pipe, the cooling pipe penetrates and extends to the front end of the oil chamber, the front end of the cooling pipe is fixedly connected with a spiral pipe at the lower part, and the upper end of the spiral pipe is fixedly installed with a blower through a fixed frame;

[0010] The water collector is fixedly installed at the lower end of the spiral pipe;

[0011] The semiconductor refrigerator is fixedly installed at the inner lower end of the first storage barrel, the refrigeration end of the semiconductor refrigerator is installed with a first heat conduction plate, and the upper end of the first heat conduction plate is fixedly installed with a first heat conduction fin;

[0012] A driving motor is fixedly installed on the inner upper end of the first storage barrel, and an output end of the driving motor is installed with a stirring frame;

[0013] A water temperature sensor is fixedly installed on the inside of the first storage barrel;

[0014] A first water pump is arranged on the inside of the first storage barrel close to one side of the second storage barrel, an output end of the first water pump is connected with the second storage barrel, one side of the inside of the second storage barrel is installed with a second water pump, and an output end of the second water pump is connected with an input end of the water distributor through a pipeline.

[0015] Preferably, the cooling pipe is provided with nine, and the oil chamber is provided with three.

[0016] Preferably, the first heat-conducting plate is located at the lower end of the inside of the first storage barrel, and the first heat-conducting plate is fixedly connected with the first storage barrel.

[0017] Preferably, an oil inlet pipe is fixedly arranged at the upper end of the oil chamber, and an output end of the oil inlet pipe is fixedly connected with an output end of the submersible pump, and the submersible pump is used to pump out the hot oil on the upper layer of the transformer.

[0018] Preferably, an oil return pipe is installed at the lower end of the oil chamber, and the oil return pipe is fixedly connected with the oil chamber, and the oil return pipe is used to guide the cooled oil back to the transformer.

[0019] Preferably, a second heat-conducting plate is installed at the heating end of the semiconductor refrigerator, and the second heat-conducting plate is fixedly connected with the semiconductor refrigerator, and the second heat-conducting plate is used to guide the heat at the heating end of the semiconductor refrigerator.

[0020] Preferably, a second heat-conducting fin is installed at the outside of the second heat-conducting plate, and the second heat-conducting fin is fixedly connected with the second heat-conducting plate, and the second heat-conducting fin is used to increase the heat exchange area of the second heat-conducting plate.

[0021] Preferably, a heat dissipation fan is arranged at the outside of the second heat-conducting fin, and the heat dissipation fan is fixedly connected with the second heat-conducting fin through a base frame, and the heat dissipation fan is used to dissipate heat for the second heat-conducting fin.

[0022] Preferably, support legs are installed at the lower ends of the first storage barrel and the second storage barrel, and the support legs are fixedly connected with the first storage barrel and the second storage barrel.

[0023] Preferably, the second water pump is fixedly connected with the second storage barrel, and the second water pump is used to guide the liquid water in the second storage barrel into the water distributor.

[0024] (Three) beneficial effects

[0025] Compared with the prior art, the oil liquid circulating device of the transformer for the hydropower station has the following beneficial effects:

[0026] The spiral pipe prolongs the heat exchange path and increases the contact area, so that the circulating water and the oil liquid are fully heat exchanged, and forced convection is assisted by the air blower, so that the heat dissipation efficiency is improved compared with the traditional design; the double storage barrels adopt a staged cooling mechanism to effectively avoid water temperature fluctuation, ensure the stability of oil liquid cooling, and are suitable for oil liquid cooling of the transformer of the hydropower station, and solve the problems in the background art. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a whole structure perspective view of the utility model;

[0028] Figure 2 It is an oil chamber internal structure sectional view of the utility model;

[0029] Figure 3 It is a first storage barrel and second storage barrel structure sectional view of the utility model.

[0030] In the drawing: 1, water distributor; 2, cooling pipe; 3, spiral pipe; 4, water collector; 5, oil chamber; 6, submersible pump; 7, oil inlet pipe; 8, oil return pipe; 9, air blower; 10, first storage barrel; 11, second storage barrel; 12, water temperature sensor; 13, driving motor; 14, stirring frame; 15, semiconductor refrigerator; 16, first heat conduction plate; 17, first heat conduction fin; 18, second heat conduction plate; 19, second heat conduction fin; 20, heat dissipation fan; 21, first water pump; 22, second water pump; 23, supporting leg. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] The utility model provides a technical scheme, an oil liquid circulating device of transformer for hydropower station, please refer to Figure 1 、 Figure 2 and Figure 3 , comprising:

[0033] The water distributor 1, the cooling pipe 2, the oil chamber 5, the submersible pump 6, the first storage barrel 10 and the second storage barrel 11, the output end of the water distributor 1 is fixedly connected with the input end of the cooling pipe 2, the cooling pipe 2 penetrates and extends to the front end of the oil chamber 5, the front end of the cooling pipe 2 is fixedly connected with the spiral pipe 3, the upper end of the spiral pipe 3 is fixedly installed with the air blower 9 through the fixing frame;

[0034] The water collector 4 is fixedly installed at the lower end of the spiral pipe 3;

[0035] The semiconductor refrigerator 15 is fixedly installed at the lower end of the inside of the first storage barrel 10, the refrigeration end of the semiconductor refrigerator 15 is installed with the first heat conduction plate 16, the upper end of the first heat conduction plate 16 is fixedly installed with the first heat conduction fin 17;

[0036] The driving motor 13 is fixedly installed at the upper end of the inside of the first storage barrel 10 through the inner frame, the output end of the driving motor 13 is installed with the stirring frame 14;

[0037] The water temperature sensor 12 is fixedly installed at the inside of the first storage barrel 10;

[0038] The first water pump 21 is arranged at the inside of the first storage barrel 10 close to one side of the second storage barrel 11, the output end of the first water pump 21 is connected with the second storage barrel 11, the inside of the second storage barrel 11 is installed with the second water pump 22, the output end of the second water pump 22 is connected with the input end of the water distributor 1 through the pipeline;

[0039] The inside of the first storage barrel 10 and the second storage barrel 11 is installed with the pressure balance valve, the outside of the submersible pump 6 is further provided with the oil purifier, the differential pressure relay, the electric valve, the pressure gauge and the thermometer and other common equipment, because the above-mentioned equipment does not involve the improved structure of the utility model, is not shown in the drawing.

[0040] Please refer to Figure 1 and Figure 2 , the cooling pipe 2 is provided with nine, the oil chamber 5 is provided with three.

[0041] Please refer to Figure 3 , the first heat conduction plate 16 is located at the lower end of the inside of the first storage barrel 10, and the first heat conduction plate 16 is fixedly connected with the first storage barrel 10.

[0042] Please refer to Figure 1 and Figure 2 , the upper end of the oil chamber 5 is fixedly provided with the oil inlet pipe 7, and the input end of the oil inlet pipe 7 is fixedly connected with the output end of the submersible pump 6, the submersible pump 6 is used to pump out the hot oil on the transformer.

[0043] Please refer to Figure 2 , the lower end of the oil chamber 5 is installed with the oil return pipe 8, and the oil return pipe 8 is fixedly connected with the oil chamber 5, the oil return pipe 8 is used to guide the cooled oil back to the transformer.

[0044] Referring to Figure 3 , the heating end of the semiconductor refrigerator 15 is provided with a second heat-conducting plate 18, and the second heat-conducting plate 18 is fixedly connected with the semiconductor refrigerator 15, and the second heat-conducting plate 18 is used for conducting heat away from the heating end of the semiconductor refrigerator 15.

[0045] Referring to Figure 3 , the second heat-conducting plate 18 is externally provided with a second heat-conducting fin 19, and the second heat-conducting fin 19 is fixedly connected with the second heat-conducting plate 18, and the second heat-conducting fin 19 is used for increasing the heat exchange area of the second heat-conducting plate 18.

[0046] Referring to Figure 3 , the second heat-conducting fin 19 is externally provided with a cooling fan 20, and the cooling fan 20 is fixedly connected with the second heat-conducting fin 19 through a chassis, and the cooling fan 20 is used for cooling the second heat-conducting fin 19.

[0047] Referring to Figure 1 and Figure 3 , the lower ends of the first storage barrel 10 and the second storage barrel 11 are provided with support legs 23, and the support legs 23 are fixedly connected with the first storage barrel 10 and the second storage barrel 11.

[0048] Referring to Figure 3 , the second water pump 22 is fixedly connected with the second storage barrel 11, and the second water pump 22 is used for guiding the liquid water in the second storage barrel 11 into the water distributor 1.

[0049] The scheme: the submersible pump 6 controls the oil to be guided into the oil chamber 5 through the oil inlet pipe 7 and guided back to the transformer through the oil return pipe 8, and at the same time, the second water pump 22 is started, the second water pump 22 draws the liquid water in the second storage barrel 11 into the water distributor 1 through the pipeline, the water distributor 1 divides the liquid water into the cooling pipe 2, the cooling pipe 2 exchanges heat with the oil in the oil chamber 5 to cool the oil, the liquid water enters the spiral pipe 3 along the cooling pipe 2, the air flow is generated by starting the air blower 9 to air-cool the liquid water in the spiral pipe 3, the liquid water flows into the water collector 4 and then flows into the first storage barrel 10, the water temperature sensor 12 detects the water temperature of the liquid water in the first storage barrel 10, when the water temperature does not meet the cooling demand of the oil, the semiconductor refrigerator 15 is started, the refrigeration end of the semiconductor refrigerator 15 transmits cold air to the liquid water in the first storage barrel 10 in cooperation with the first heat-conducting plate 16 and the first heat-conducting fin 17, the driving motor 13 is started to control the stirring frame 14 to rotate so as to stir the liquid water, and the cooling efficiency is improved, when the water temperature meets the demand, the semiconductor refrigerator 15 is turned off, and the liquid water in the first storage barrel 10 is guided into the second storage barrel 11 by the first water pump 21 for recycling.

[0050] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An oil circulation device for a transformer used in a hydropower station, characterized in that, include: The system includes a water distributor (1), a cooling pipe (2), an oil chamber (5), a submersible oil pump (6), a first storage tank (10), and a second storage tank (11). The output end of the water distributor (1) is fixedly connected to the input end of the cooling pipe (2). The cooling pipe (2) extends through and to the front end of the oil chamber (5). A spiral pipe (3) is fixedly connected to the lower part of the front end of the cooling pipe (2). A blower (9) is fixedly installed at the upper end of the spiral pipe (3) by a fixing bracket. Water collector (4) is fixedly installed at the lower end of spiral tube (3); A semiconductor cooler (15) is fixedly installed inside the lower end of the first storage tank (10). The cooling end of the semiconductor cooler (15) is equipped with a first heat-conducting plate (16), and the upper end of the first heat-conducting plate (16) is fixedly equipped with a first heat-conducting fin (17). The drive motor (13) is fixedly installed inside the upper part of the first storage tank (10) by the inner frame, and the output end of the drive motor (13) is equipped with a stirring rack (14); A water temperature sensor (12) is fixedly installed inside the first storage tank (10); The first water pump (21) is located inside the first storage tank (10) on the side near the second storage tank (11). The output end of the first water pump (21) is connected to the second storage tank (11). The second water pump (22) is installed inside the second storage tank (11) on one side. The output end of the second water pump (22) is connected to the input end of the water distributor (1) through a pipe.

2. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The cooling pipe (2) is provided with nine pipes, and the oil chamber (5) is provided with three oil chambers.

3. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The first heat-conducting plate (16) is located at the lower end of the interior of the first storage tank (10), and the first heat-conducting plate (16) is fixedly connected to the first storage tank (10).

4. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: An oil inlet pipe (7) is fixedly installed at the upper end of the oil chamber (5), and the input end of the oil inlet pipe (7) is fixedly connected to the output end of the submersible pump (6).

5. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The lower end of the oil chamber (5) is equipped with an oil return pipe (8), and the oil return pipe (8) is fixedly connected to the oil chamber (5).

6. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The heating end of the semiconductor cooler (15) is equipped with a second heat-conducting plate (18), and the second heat-conducting plate (18) is fixedly connected to the semiconductor cooler (15).

7. The oil circulation device for a transformer used in a hydropower station according to claim 6, characterized in that: The second heat-conducting plate (18) is externally mounted with a second heat-conducting fin (19), and the second heat-conducting fin (19) is fixedly connected to the second heat-conducting plate (18).

8. The oil circulation device for a transformer used in a hydropower station according to claim 7, characterized in that: A heat dissipation fan (20) is provided on the outside of the second heat-conducting fin (19), and the heat dissipation fan (20) is fixedly connected to the second heat-conducting fin (19) through a base frame.

9. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The lower ends of the first storage tank (10) and the second storage tank (11) are equipped with support legs (23), and the support legs (23) are fixedly connected to the first storage tank (10) and the second storage tank (11).

10. The oil circulation device for a transformer used in a hydropower station according to claim 1, characterized in that: The second water pump (22) is fixedly connected to the second storage tank (11).

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