Dehumidification device for oil type transformer

Abstract

The utility model discloses an oil type transformer dehumidification device, and relates to the technical field of transformer dehumidification. The device comprises a transformer oil tank, power distribution equipment and a water removal filtering assembly, an air dehumidification mechanism comprises a circulating air assembly, a dust filtering assembly and a connection limiting assembly, the circulating air assembly comprises a rotationally arranged circulating fan, and the connection limiting assembly comprises a heatable metal heat conduction rod and a rotationally arranged limiting block. The limiting block is in sliding fit with the circulating air assembly and the dust filtering assembly; the dewatering filtering assembly is fixedly installed on one side face of the transformer oil tank. Air circulation in the transformer oil tank is achieved through rotation of the circulating fan, the metal heat conduction rod heats air entering the transformer oil tank, the moisture content in the air is reduced, circulating filtration is conducted through the water removal filtering assembly, the moisture content is reduced, and the service life of the transformer oil tank is prolonged. And the moisture content of the insulating oil and the moisture content of the air in the oil tank are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer dehumidification, in particular to an oil-type transformer dehumidification device. Background Art

[0002] An oil-type transformer refers to a transformer whose windings use insulating oil as the insulating medium. Since the electrical and mechanical strength of oil are much higher than those of air and its insulation performance is excellent, the cooling method of oil-immersed transformers can be natural cooling, forced air cooling or forced air cooling. The windings of oil-type transformers use impregnated insulating oil as the insulating medium, which can save a lot of energy. Therefore, it is widely used in power systems.

[0003] Oil-type transformers use insulating oil as the insulating medium. The quality of the insulating oil affects the use of the oil-type transformer. The common dehumidification method of oil-type transformers is single, and the air will carry impurities such as moisture and dust when entering the oil tank, which is easy to affect the quality of the insulating oil. At the same time, if the filter device is not replaced or cleaned in time, the filtering effect will be reduced, affecting the use effect. To this end, we provide an oil-type transformer dehumidification device to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide an oil-type transformer dehumidification device, which solves the problems in the above-mentioned background technology through the specific structural design of the transformer oil tank, power distribution equipment and water removal and filtering components.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an oil-type transformer dehumidification device, comprising a transformer oil tank, a power distribution device and a water removal filter component, wherein the power distribution device is fixedly installed on the upper surface of the transformer oil tank; the air dehumidification mechanism is fixedly installed on the upper surface of the transformer oil tank, the air dehumidification mechanism is communicated with the transformer oil tank, the air dehumidification mechanism comprises a circulating air component, a dust filtering component and a connection limit component, the dust filtering component is slidably matched on the upper surface of the circulating air component, the connection limit component is slidably matched with the circulating air component and the dust filtering component; the circulating air component comprises a rotatably arranged circulating fan, the connection limit component comprises a heatable metal heat conducting rod and a rotatably arranged limit block, the limit block is slidably matched with the circulating air component and the dust filtering component; the water removal filter component is fixedly installed on one side of the transformer oil tank, and the water removal filter component is communicated with the transformer oil tank.

[0007] The air circulation inside the transformer oil tank is realized by the rotation of the circulating fan. At the same time, the metal heat conductive rod heats the air entering the transformer oil tank, and the insulating oil stored in the transformer oil tank is circulated and filtered by the water removal filter component.

[0008] The utility model further comprises an air circulation component which also includes an air inlet duct fixedly connected to the upper surface of the transformer oil tank, the circulation fan is rotatably connected inside the air inlet duct, and the circulation fan is electrically connected to the power distribution equipment; a plurality of first limit holes are provided on the upper surface of the air inlet duct, and a plurality of connection alignment holes are provided on the upper surface of the air inlet duct.

[0009] The utility model further comprises a dust filtering assembly comprising a dust filtering plate, the surface of the dust filtering plate being provided with second limiting holes corresponding one to one with the first limiting holes; a plurality of return springs are fixedly connected to the upper surface of the dust filtering plate, and a plurality of connecting alignment posts are fixedly connected to the lower surface of the dust filtering plate, and the connecting alignment posts are slidably matched with the corresponding connecting alignment holes.

[0010] The utility model further comprises that the connection limit assembly also includes a connecting hollow chamber, the upper surface of the connecting hollow chamber is fixedly connected to the ventilation duct, the metal heat conductive rod is fixedly installed inside the connecting hollow chamber, and the metal heat conductive rod is electrically connected to the power distribution equipment.

[0011] The utility model further comprises: a first transmission disc rotatably connected to the top of the connected hollow chamber via a rotating shaft, one end of the rotating shaft passing through the connected hollow chamber is fixedly connected to a driving disc, and an installation cavity is provided in the inner wall of the connected hollow chamber; a plurality of second transmission discs are rotatably connected to the bottom of the installation cavity via a connecting shaft, a transmission connecting rod is rotatably connected to the lower surface of the first transmission disc at a position deviating from the center of the circle, the other end of the transmission connecting rod is rotatably connected to the upper surface of the second transmission disc at a position deviating from the center of the circle, and the limit block is fixedly connected to one end of the connecting shaft passing through the connected hollow chamber.

[0012] The utility model further comprises an oil outlet pipe fixedly mounted on a side of a transformer oil tank, a first solenoid valve fixedly mounted inside the oil outlet pipe, a water removal filter fixedly connected to one end of the oil outlet pipe, an oil inlet pipe fixedly connected to one end of the water removal filter, a second solenoid valve fixedly mounted inside the oil inlet pipe, and the oil inlet pipe fixedly connected to a side of the transformer oil tank.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model provides an air dehumidification mechanism and a water removal filter assembly, and utilizes the rotation of a circulating fan to realize air circulation inside the transformer oil tank. At the same time, when the air enters the transformer oil tank, it is heated by a metal heat conducting rod to reduce the moisture content in the air. Then, a water removal filter is used to circulate water and filter the insulating oil in the transformer oil tank to remove moisture and impurities, thereby reducing the moisture content inside the transformer oil tank and preventing the normal use of the transformer from being affected by excessive moisture in the insulating oil.

[0015] 2. The utility model sets an air dehumidification mechanism, inserts the connection alignment column into the corresponding connection alignment hole, and then slides the limit block along the corresponding first limit hole and the second limit hole until the upper surface of the limit block fits with the surface of the air inlet duct, and rotates the limit block, thereby realizing the installation and fixation of the dust filter plate, filtering dust in the air, and preventing impurities from entering the insulating oil and affecting the normal use of the transformer. At the same time, it is convenient to disassemble the dust filter plate, and it is convenient to replace and clean the dust filter plate.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The figure is a schematic diagram of the structure of an oil transformer dehumidification device.

[0019] Figure 2 It is a structural exploded diagram of the air dehumidification mechanism in the utility model.

[0020] Figure 3 It is a structural schematic diagram of the circulating air component in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the dust filtering component in the utility model.

[0022] Figure 5 It is a structural schematic diagram of the connection limit assembly in the utility model.

[0023] Figure 6 It is a structural schematic diagram of the water removal and filtration component in the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-transformer oil tank, 2-power distribution equipment, 3-air dehumidification mechanism, 31-circulating air component, 311-circulating fan, 312-air inlet duct, 313-first limiting hole, 314-connecting alignment hole, 32-dust filter component, 321-dust filter plate, 322-second limiting hole, 323-reset spring, 324-connecting alignment column, 33-connecting limiting component, 331-metal heat conducting rod, 332-limiting block, 333-connecting hollow chamber, 334-ventilation duct, 335-first transmission disc, 336-driving disc, 337-installation cavity, 338-second transmission disc, 339-transmission connecting rod, 4-water removal filter component, 401-oil outlet pipeline, 402-first solenoid valve, 403-water removal filter, 404-oil inlet pipeline, 405-second solenoid valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model is a dehumidification device for an oil-type transformer, comprising a transformer oil tank 1, a power distribution device 2, an air dehumidification mechanism 3 and a water removal filter assembly 4. The power distribution device 2 is fixedly installed on the upper surface of the transformer oil tank 1. The power distribution device 2 is electrically connected to other electrical equipment of the device to provide power for the operation of the device components; the air dehumidification mechanism 3 is fixedly installed on the upper surface of the transformer oil tank 1, and the air dehumidification mechanism 3 is connected to the transformer oil tank 1 to reduce the moisture content of the air entering the transformer oil tank 1. The air dehumidification mechanism 3 comprises a circulating air assembly 31, a dust filter assembly 32 and a connection limit assembly 33. The dust filter assembly 32 is slidably matched on the upper surface of the circulating air assembly 31, and the connection limit assembly 33 is connected to the circulating air assembly 31 and the dust filter assembly 32 All of them are slidably matched; the circulating air component 31 includes a rotatably arranged circulating fan 311, which promotes the internal air circulation of the transformer oil tank 1 and the inflow of external air. The connection limit component 33 includes a heatable metal heat-conducting rod 331 and a rotatably arranged limit block 332. After the water-containing air passes through the heated metal heat-conducting rod 331, the water evaporates due to heat and thus reduces the water content in the air. The limit block 332 is slidably matched with the circulating air component 31 and the dust filter component 32. The dust filter component 32 can filter dust and impurities in the air to prevent them from entering the interior of the transformer oil tank 1 and affecting the use effect of the transformer; the dewatering filter component 4 is fixedly installed on one side of the transformer oil tank 1, and the dewatering filter component 4 is connected to the transformer oil tank 1.

[0028] The air circulation inside the transformer oil tank 1 is realized by rotating the circulating fan 311. At the same time, the metal heat conductive rod 331 heats the air entering the transformer oil tank 1 to reduce the moisture content in the air. The insulating oil stored in the transformer oil tank 1 is circulated and filtered by the water removal filter component 4 to reduce the moisture content.

[0029] In this implementation case of the utility model, the circulating air component 31 also includes an air inlet duct 312 fixedly connected to the upper surface of the transformer oil tank 1, the air inlet duct 312 is communicated with the transformer oil tank 1, the circulating fan 311 is rotatably connected inside the air inlet duct 312, and the circulating fan 311 is electrically connected to the power distribution equipment 2; a plurality of first limiting holes 313 are opened on the upper surface of the air inlet duct 312, and a plurality of connection alignment holes 314 are opened on the upper surface of the air inlet duct 312.

[0030] In this implementation case of the utility model, the dust filtering assembly 32 includes a dust filtering plate 321, and the surface of the dust filtering plate 321 is provided with second limiting holes 322 which correspond one to one with the first limiting holes 313; a plurality of return springs 323 are fixedly connected to the upper surface of the dust filtering plate 321, and a plurality of connecting alignment posts 324 are fixedly connected to the lower surface of the dust filtering plate 321, and the connecting alignment posts 324 are slidably matched with the corresponding connecting alignment holes 314. When the connecting alignment posts 324 are slidably matched with the corresponding connecting alignment holes 314, the second limiting holes 322 are aligned up and down with the corresponding first limiting holes 313.

[0031] In this implementation case of the utility model, the connection limit assembly 33 also includes a connecting hollow chamber 333, the upper surface of the connecting hollow chamber 333 is fixedly connected to the ventilation duct 334, the metal heat-conducting rod 331 is fixedly installed inside the connecting hollow chamber 333, and the metal heat-conducting rod 331 is electrically connected to the power distribution equipment 2, and the metal heat-conducting rod 331 is energized and heated when the power is turned on.

[0032] In this implementation case of the utility model, the top of the interconnecting hollow chamber 333 is rotatably connected to a first transmission disc 335 through a rotating shaft, one end of the rotating shaft passing through the interconnecting hollow chamber 333 is fixedly connected to a driving disc 336, and the driving disc 336 is manually rotated to drive the first transmission disc 335 to rotate synchronously, and an installation cavity 337 is provided on the inner wall of the interconnecting hollow chamber 333; the bottom of the installation cavity 337 is rotatably connected to a plurality of second transmission discs 338 through a connecting shaft, and a transmission connecting rod 339 is rotatably connected to the lower surface of the first transmission disc 335 at a position deviating from the center of a circle, the first transmission disc 335 rotates to pull the transmission connecting rod 339 to rotate, and the other end of the transmission connecting rod 339 is rotatably connected to the upper surface of the second transmission disc 338 at a position deviating from the center of a circle, and the transmission connecting rod 339 is rotated to drive the second transmission disc 338 to rotate synchronously, and the limit block 332 is fixedly connected to one end of the connecting shaft passing through the interconnecting hollow chamber 333.

[0033] In this implementation case of the utility model, the water removal and filtering component 4 includes an oil outlet pipe 401 fixedly installed on a side of the transformer oil tank 1, a first solenoid valve 402 is fixedly installed inside the oil outlet pipe 401, the first solenoid valve 402 is electrically connected to the power distribution equipment 2, and the first solenoid valve 402 is a one-way valve, one end of the oil outlet pipe 401 is fixedly connected to a water removal filter 403, one end of the water removal filter 403 is fixedly connected to an oil inlet pipe 404, the water removal filter 403 can absorb and filter the moisture and impurities contained in the insulating oil, a second solenoid valve 405 is fixedly installed inside the oil inlet pipe 404, the second solenoid valve 405 is electrically connected to the power distribution equipment 2, and the second solenoid valve 405 is a one-way valve, and the oil inlet pipe 404 is fixedly connected to a side of the transformer oil tank 1.

[0034] The working principle of this embodiment is: before the dehumidification operation, the dust filter plate 321 is installed. The specific installation and fixing process is as follows:

[0035] The connecting alignment post 324 is inserted into the corresponding connecting alignment hole 314, so that the dust filter plate 321 is fitted with the upper surface of the air inlet duct 312, and the second limiting hole 322 coincides with the corresponding first limiting hole 313, and then the limiting block 332 is slid downward along the second limiting hole 322 and the first limiting hole 313, and the connecting hollow chamber 333 is pressed downward to press the return spring 323, and the return spring 323 is squeezed by the external force until the upper surface of the limiting block 332 is fitted with the surface of the air inlet duct 312, and the driving disk 33 is manually rotated. 6, driving the first transmission disc 335 to rotate synchronously, thereby pulling the transmission connecting rod 339 to move synchronously, and at the same time, the second transmission disc 338 rotates synchronously under the pulling of the transmission connecting rod 339, and drives the limit block 332 to rotate a certain angle through the rotation of the connecting shaft. At this time, the limit block 332 is misaligned with the second limit hole 322 and the first limit hole 313. Under the elastic recovery action of the reset spring 323, the limit block 332 is tightly fitted with the lower surface of the flange on the air inlet duct 312, thereby completing the installation and fixation of the dust filter plate 321.

[0036] The circulation fan 311 is controlled to rotate and the metal heat-conducting rod 331 is heated through the power distribution equipment 2. The circulation fan 311 rotates to circulate the air inside the transformer oil tank 1. At the same time, the external air flows into the transformer oil tank 1 through the ventilation duct 334. When passing through the heated metal heat-conducting rod 331, the moisture in the air is evaporated by the heat, thereby reducing the moisture content in the air. At the same time, the first solenoid valve 402 is started, and the insulating oil inside the transformer oil tank 1 flows into the oil outlet pipe 401 under the action of gravity, and enters the dewatering filter 403, and the moisture contained in the insulating oil is removed by the dewatering filter 403 (the dewatering filter 403 is provided with a multi-layer heating template, and the multi-layer heating template allows the insulating oil to stay in the dewatering filter 403 for a long time, and the moisture contained in the insulating oil is fully evaporated by heating, thereby completing the removal of the moisture contained in the insulating oil), and the filtered insulating oil passes through the second solenoid valve 405 and returns to the transformer oil tank 1 through the oil inlet pipe 404. This cycle is repeated to achieve the reduction and removal of the moisture content of the insulating oil in the transformer oil tank 1.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oil transformer dehumidification device, characterized in that: include: A transformer oil tank (1), wherein a power distribution device (2) is fixedly mounted on the upper surface of the transformer oil tank (1); An air dehumidification mechanism (3), the air dehumidification mechanism (3) is fixedly mounted on the upper surface of the transformer oil tank (1), the air dehumidification mechanism (3) is connected to the transformer oil tank (1), the air dehumidification mechanism (3) comprises a circulating air component (31), a dust filtering component (32) and a connection limit component (33), the dust filtering component (32) is slidably fitted on the upper surface of the circulating air component (31), and the connection limit component (33) is slidably fitted with the circulating air component (31) and the dust filtering component (32); The circulating air component (31) comprises a rotatably arranged circulating fan (311), the connecting limit component (33) comprises a heatable metal heat conducting rod (331) and a rotatably arranged limit block (332), and the limit block (332) is slidably matched with the circulating air component (31) and the dust filtering component (32); A water removal filter assembly (4), wherein the water removal filter assembly (4) is fixedly mounted on a side of the transformer oil tank (1), and the water removal filter assembly (4) is in communication with the transformer oil tank (1); The circulation fan (311) rotates to realize air circulation inside the transformer oil tank (1), while the metal heat conducting rod (331) heats the air entering the transformer oil tank (1), and the water removal filter assembly (4) circulates and filters the insulating oil stored inside the transformer oil tank (1).

2. The oil-type transformer dehumidification device according to claim 1, characterized in that: The circulating air component (31) further comprises an air inlet duct (312) fixedly connected to the upper surface of the transformer oil tank (1); the circulating fan (311) is rotatably connected to the inside of the air inlet duct (312); and the circulating fan (311) is electrically connected to the power distribution equipment (2); A plurality of first limiting holes (313) are provided on the upper surface of the air inlet duct (312), and a plurality of connecting alignment holes (314) are provided on the upper surface of the air inlet duct (312).

3. The oil-type transformer dehumidification device according to claim 2 is characterized in that: The dust filter assembly (32) comprises a dust filter plate (321), and a second limiting hole (322) corresponding to the first limiting hole (313) is formed on the surface of the dust filter plate (321); The upper surface of the dust filter plate (321) is fixedly connected with a plurality of return springs (323), and the lower surface of the dust filter plate (321) is fixedly connected with a plurality of connection alignment posts (324), and the connection alignment posts (324) are slidably matched with corresponding connection alignment holes (314).

4. The oil-type transformer dehumidification device according to claim 3 is characterized in that: The connection limit assembly (33) further comprises a connecting hollow chamber (333), the upper surface of the connecting hollow chamber (333) being fixedly connected to a ventilation duct (334), the metal heat conducting rod (331) being fixedly installed inside the connecting hollow chamber (333), and the metal heat conducting rod (331) being electrically connected to the power distribution equipment (2).

5. The oil-type transformer dehumidification device according to claim 4, characterized in that: The top of the connecting hollow chamber (333) is rotatably connected to a first transmission disc (335) via a rotating shaft, one end of the rotating shaft passing through the connecting hollow chamber (333) is fixedly connected to a driving disc (336), and an installation cavity (337) is provided on the inner wall of the connecting hollow chamber (333).

6. The oil-type transformer dehumidification device according to claim 5, characterized in that: The bottom of the installation cavity (337) is rotatably connected to a plurality of second transmission discs (338) via a connecting shaft, a transmission connecting rod (339) is rotatably connected to a portion of the lower surface of the first transmission disc (335) deviating from the center of the circle, and the other end of the transmission connecting rod (339) is rotatably connected to a portion of the upper surface of the second transmission disc (338) deviating from the center of the circle, and the limit block (332) is fixedly connected to one end of the connecting shaft that passes through the hollow chamber (333).

7. The oil-type transformer dehumidification device according to claim 6, characterized in that: The water removal filter assembly (4) comprises an oil outlet pipeline (401) fixedly mounted on a side of a transformer oil tank (1); a first solenoid valve (402) is fixedly mounted inside the oil outlet pipeline (401); one end of the oil outlet pipeline (401) is fixedly connected to a water removal filter (403); one end of the water removal filter (403) is fixedly connected to an oil inlet pipeline (404); a second solenoid valve (405) is fixedly mounted inside the oil inlet pipeline (404); and the oil inlet pipeline (404) is fixedly connected to a side of the transformer oil tank (1).

Images