Transformer moisture absorption device

Abstract

The utility model relates to the field of transformer moisture absorption, in particular to a transformer moisture absorption device which comprises a first tank body and a second tank body, connecting pipes are connected to the centers of the outer walls of the tops of the first tank body and the second tank body, and air inlet pipes are connected to the bottoms of the outer walls of the sides, close to each other, of the first tank body and the second tank body. A three-way valve I and a three-way valve II are respectively arranged at one end of a connecting pipe and an air inlet pipe of the tank body I and the tank body II, and a drying structure is arranged at the three-way valve I; the drying structure comprises drying pipes connected to one ends of the outer walls of the tops of the first tank body and the second tank body, exhaust pipes connected to the centers of the outer walls of the bottoms of the first tank body and the second tank body, and a fan installed at one end of a first three-way valve. The heating wire heats and evaporates silica gel particles in the first tank body or the second tank body, the valve on the exhaust pipe is opened, the fan drives gas to discharge evaporated moisture from the exhaust pipe from top to bottom, and the silica gel particles can be heated and recovered conveniently.

Description

Technical Field

[0001] This utility model relates to the field of transformer moisture absorption technology, and in particular to a transformer moisture absorption device. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetically saturated transformers). A transformer dehumidifier, also called a transformer breather or transformer silica gel tank, absorbs moisture from the air entering the transformer oil conservator bladder and diaphragm. It removes and dries impurities and moisture from the air entering the transformer oil conservator bladder due to changes in transformer oil temperature, preventing the transformer from becoming damp and ensuring the insulation strength of the transformer oil. Current transformer dehumidifiers are single-channel. After a period of use, the silica gel particles inside become saturated, preventing the passing gas from being absorbed. At this point, the silica gel particles need to be replaced or dried; otherwise, moisture will enter the transformer and affect its insulation strength. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned problems and deficiencies by proposing a transformer moisture-absorbing device: a heating wire heats and evaporates the silica gel particles in tank one or tank two; a valve on the exhaust pipe is opened, and a fan drives the gas from top to bottom to discharge the evaporated moisture from the exhaust pipe, facilitating the heating and restoration of the silica gel particles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A transformer dehumidification device includes a tank body one and a tank body two. A connecting pipe is connected to the center of the top outer wall of both tank body one and tank body two, and an air inlet pipe is connected to the bottom of the outer wall of both tank body one and tank body two on the side closest to each other. A three-way valve one and a three-way valve two are respectively provided at one end of the connecting pipe and the air inlet pipe of tank body one and tank body two, and a drying structure is provided at one end of the three-way valve.

[0006] The drying structure includes a drying pipe connected to one end of the top outer wall of tank 1 and tank 2, an exhaust pipe connected to the center of the bottom outer wall of tank 1 and tank 2, and a fan installed at one end of the three-way valve.

[0007] Preferably, the input end of the blower is connected to one end of the three-way valve, and the other two ends of the three-way valve are respectively connected to the other ends of the connecting pipes on the tank body and the tank body.

[0008] Preferably, the two ends of the three-way valve two are respectively connected to one end of the air inlet pipe of the tank body one and the tank body two, and the outer wall of the other end of the three-way valve two is connected to a filter pipe, the inner wall of the filter pipe is provided with filter material, and an interception net is installed on the outer wall of one end of the filter pipe.

[0009] Preferably, the output end of the fan is connected to a four-way valve, and the two ends of the four-way valve are respectively connected to one end of the drying tube, and one end of the four-way valve is connected to the transformer.

[0010] Preferably, a valve is installed on the outer wall of one end of the exhaust pipe, and heat insulation covers are installed on the outer walls of tank body one and tank body two, with heating wires evenly distributed on the inner wall of the heat insulation covers.

[0011] Preferably, the inner walls of the first and second tanks are provided with silica gel drying particles, and the heating wire and the fan are connected to a switch via wires, and the switch is connected to a power source via wires.

[0012] The beneficial effects of this utility model are as follows:

[0013] The gas is transported by the fan through the connecting pipe and the three-way valve to complete the dehumidification operation of the gas. At the same time, the first tank and the second tank alternately dehumidify the gas to improve the dehumidification efficiency.

[0014] The heating wire heats and evaporates the silica gel particles in either tank one or tank two. The valve on the exhaust pipe is opened, and the fan drives the gas from top to bottom to discharge the evaporated moisture from the exhaust pipe, which facilitates the heating and restoration of the silica gel particles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a transformer moisture absorption device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a transformer moisture absorption device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a transformer moisture absorption device proposed in this utility model.

[0018] In the diagram: 1 Tank I, 2 Tank II, 3 Connecting pipe, 4 Three-way valve I, 5 Inlet pipe, 6 Three-way valve II, 7 Fan, 8 Four-way valve, 9 Drying pipe, 10 Exhaust pipe, 11 Valve, 12 Filter pipe, 13 Interception net, 14 Heat insulation cover, 15 Heating wire. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1: Refer to Figure 1-3As shown, a connecting pipe 3 is connected to the center of the top outer wall of both tank 1 and tank 2, and an air inlet pipe 5 is connected to the bottom of the outer wall of both tank 1 and tank 2 on the side closest to each other. One end of the connecting pipe 3 and the air inlet pipe 5 of tank 1 and tank 2 is respectively equipped with a three-way valve 4 and a three-way valve 6, and a drying structure is provided at the three-way valve 4. The drying structure includes a drying pipe 9 connected to one end of the top outer wall of tank 1 and tank 2, an exhaust pipe 10 connected to the center of the bottom outer wall of tank 1 and tank 2, and a fan 7 installed at one end of the three-way valve 4. The input end of the fan 7 is connected to one end of the three-way valve 4, and the other two ends of the three-way valve 4 are respectively connected to the other end of the connecting pipe 3 on tank 1 and tank 2.

[0021] The connecting pipe 3 and the air inlet pipe 5 on tank 1 and tank 2 are respectively controlled to open by three-way valve 1 4 and three-way valve 2 6, so that the fan 7 can use tank 1 or tank 2 2 for dehumidification, which is convenient for alternation and easy to use.

[0022] Once one tank (1) is saturated, the other tank (2) is used. At the same time, the four-way valve (8) is opened in conjunction with the heating wire (15) to perform the recovery operation, which facilitates reuse and moisture removal. Example

[0023] Reference Figure 2-3 As shown, the two ends of the three-way valve 6 are respectively connected to one end of the air inlet pipe 5 of tank 1 and tank 2, and the other end of the three-way valve 6 is connected to a filter pipe 12. The inner wall of the filter pipe 12 is provided with filter material, and an interception net 13 is installed on the outer wall of one end of the filter pipe 12. The output end of the fan 7 is connected to a four-way valve 8, and the two ends of the four-way valve 8 are respectively connected to one end of the drying pipe 9, and one end of the four-way valve 8 is connected to a transformer. A valve 11 is installed on the outer wall of one end of the exhaust pipe 10, and a heat insulation cover 14 is installed on the outer wall of tank 1 and tank 2. Heating wires 15 are evenly distributed on the inner wall of the heat insulation cover 14. Silica gel drying particles are provided on the inner wall of tank 1 and tank 2, and the heating wires 15 and the fan 7 are connected to a switch through a wire, and the switch is connected to a power source through a wire.

[0024] Heating wire 15 is located on the outer wall of tank body 1 and tank body 2. At the same time, heat insulation cover 14 protects heating wire 15, which facilitates heat insulation and ensures heat transfer.

[0025] The gas enters through the filter tube 12 and first comes into contact with the interception net 13 and filter material in the filter tube 12. The filter material and the interception net 13 filter and adsorb the gas respectively, further reducing the particulate matter in the gas.

[0026] Working principle: During use, after the fan starts, gas is drawn in through three-way valve 1 (4), connecting pipe 3, tank 1 (1) or tank 2 (2), inlet pipe 5, and three-way valve 2 (6). The gas enters through filter pipe 12 and first comes into contact with the interceptor mesh 13 and filter media in filter pipe 12. The filter media and interceptor mesh 13 filter and adsorb the gas respectively, further reducing the particulate matter in the gas. Then the gas enters tank 1 (1) or tank 2 (2), where silica gel particles absorb moisture from the gas. The gas is then transported by fan 7 through connecting pipe 3 and three-way valve 1 (4), completing the gas purification process. During the moisture absorption process, tank 1 and tank 2 alternately absorb moisture from the gas to improve the moisture absorption efficiency. This further avoids the problem of moisture affecting the insulation performance. When the silica gel particles in tank 1 or tank 2 are saturated, the four-way valve 8 is opened to connect the output end of the fan 7 to the drying pipe 9. The heating wire 15 in the heat insulation cover 14 is activated, and the heating wire 15 heats and evaporates the silica gel particles in tank 1 or tank 2. The valve 11 on the exhaust pipe 10 is opened, and the fan 7 drives the gas from top to bottom to discharge the evaporated moisture from the exhaust pipe 10, which facilitates the heating and restoration of the silica gel particles.

[0027] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A moisture absorbing device for a transformer comprising a tank body one (1) and a tank body two (2), characterized in that, The top outer wall center of both tank 1 (1) and tank 2 (2) is connected to a connecting pipe (3), and the bottom of the outer wall of tank 1 (1) and tank 2 (2) is connected to an air inlet pipe (5). One end of the connecting pipe (3) and the air inlet pipe (5) of tank 1 (1) and tank 2 (2) is respectively provided with a three-way valve 1 (4) and a three-way valve 2 (6), and a drying structure is provided at the three-way valve 1 (4). The drying structure includes a drying pipe (9) connected to one end of the top outer wall of tank 1 (1) and tank 2 (2), an exhaust pipe (10) connected to the center of the bottom outer wall of tank 1 (1) and tank 2 (2), and a fan (7) installed at one end of three-way valve 1 (4). The input end of the blower (7) is connected to one end of the three-way valve (4), and the other two ends of the three-way valve (4) are respectively connected to the other ends of the connecting pipes (3) on the tank (1) and the tank (2); The two ends of the three-way valve (6) are respectively connected to one end of the air inlet pipe (5) of the tank (1) and the tank (2), and the other end of the three-way valve (6) is connected to a filter pipe (12). The filter pipe (12) is provided with filter material on its inner wall, and a blocking net (13) is installed on the outer wall of one end of the filter pipe (12). The output end of the fan (7) is connected to a four-way valve (8), and the two ends of the four-way valve (8) are respectively connected to one end of the drying tube (9), and one end of the four-way valve (8) is connected to the transformer; A valve (11) is installed on the outer wall of one end of the exhaust pipe (10), and a heat insulation cover (14) is installed on the outer wall of the first tank (1) and the second tank (2). Heating wires (15) are evenly distributed on the inner wall of the heat insulation cover (14). The inner walls of the first tank (1) and the second tank (2) are provided with silica gel drying particles, and the heating wire (15) and the fan (7) are connected to the switch through the wire, and the switch is connected to the power supply through the wire.

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