Damp-proof and explosion-proof protection device for transformer

Abstract

The utility model belongs to the field of protection equipment, and particularly relates to a transformer damp-proof and explosion-proof protection device which comprises a box body, a transformer is installed in the box body, a damp-proof assembly and an explosion-proof assembly are arranged in the box body, and the damp-proof assembly comprises a drying box, a circulating fan, a drying agent box, an exhaust pipe and an air return pipe. A drying box is fixedly installed on one side of the box body, a circulating fan is installed in the drying box, a drying agent box is installed in the drying box, an exhaust pipe communicated with the box body is installed at the top of one side of the drying box, and an air return pipe communicated with the box body is installed at the bottom of one side of the drying box. The anti-explosion transformer is reasonable in design, the humidity sensor is used for monitoring humidity, the circulating fan and the drying agent box are linked to achieve moisture prevention, the pressure sensor is used for monitoring pressure, the compression spring and other structures are combined to achieve anti-explosion, the anti-explosion pressure relief pressure value can be flexibly adjusted through the adjusting base and the driving screw, and the operation stability and safety of the transformer are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to protection equipment technical field especially relates to a transformer moistureproof explosion -proof protection device. BACKGROUND

[0002] As the key equipment in the power system, the stability and safety of the transformer are very important, in practical application, the transformer often will be threatened by the humid environment and the internal pressure abnormal rise. The performance of the insulating material inside the transformer will be reduced by the humid air, increases the risk of electric leakage and short circuit, seriously affects the service life and the operation safety of the transformer,

[0003] When the pressure inside the transformer rises sharply due to faults and other reasons, if the pressure cannot be released in time, a serious accident such as explosion may be caused, causing huge economic loss and safety hazard, and the traditional transformer protection device has certain limitations in moisture-proof and explosion-proof function, and it is difficult to meet the demand of comprehensive protection of the transformer in actual use, therefore, we propose a transformer moisture-proof explosion-proof protection device to solve the above problems. SUMMARY

[0004] The utility model discloses a transformer moisture-proof explosion-proof protection device to solve the shortcomings in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of transformer moisture-proof explosion-proof protection device, including box, the transformer is installed in the box, and moisture-proof assembly and explosion-proof assembly are equipped in the box, the moisture-proof assembly includes drying cabinet, circulating fan, desiccant box, exhaust pipe and return air pipe, the drying cabinet is fixedly installed on the side of the box, circulating fan is installed in drying cabinet, and desiccant box is installed in drying cabinet, the top of the side of drying cabinet is installed with the exhaust pipe being communicated with the box, the bottom of the side of drying cabinet is installed with the return air pipe being communicated with the box;The explosion-proof assembly includes pressure relief cylinder, pressure relief hole, sealing seat and L-shaped through hole, the pressure relief cylinder is installed on the other side top of the box, sealing seat is slidably and sealingly installed in the pressure relief cylinder, L-shaped through hole is formed in the sealing seat, and pressure relief hole that is matched with L-shaped through hole is formed in the bottom of the pressure relief cylinder.

[0007] Preferably, the moisture-proof assembly further includes a fixed humidity sensor fixedly installed on the inner wall of the top of the box.

[0008] Preferably, the inner walls on both sides of the drying cabinet are fixedly installed with support seats, and the desiccant box is detachably installed on the support seat by bolts.

[0009] Preferably, a plurality of guide holes are formed in the inner wall of one side of the pressure relief cylinder, and a plurality of T-shaped limiting rods are fixedly installed on one side of the sealing seat and in sliding sealing connection with the corresponding guide holes.

[0010] Preferably, one same adjusting seat is sleeved on the plurality of T-shaped limiting rods, and a pressing mechanism is arranged between the adjusting seat and the sealing seat.

[0011] Preferably, the pressing mechanism comprises a pressure sensor and a compression spring, the pressure sensor is fixedly installed on one side of the adjusting seat, a compression spring is installed on one side of the pressure sensor, and one end of the compression spring is fixedly installed on the sealing seat.

[0012] Preferably, a threaded hole is formed in the inner wall of one side of the pressure relief cylinder, a drive screw is threadedly installed in the threaded hole, the drive screw is in contact with the adjusting seat, and one end of the drive screw extends to the outside of the pressure relief cylinder and is fixedly installed with a hand wheel.

[0013] Preferably, a controller is installed on the front side of the box, and the humidity sensor, the circulating fan and the pressure sensor are electrically connected with the controller.

[0014] The utility model discloses beneficial effects:

[0015] 1, through humidity sensor can monitor the humidity in the box, when humidity is higher than set value, through the controller can bring the circulating fan, through the air extraction pipe can extract the gas in the box, and the air after extraction passes through the drying agent box and is backflowed to the box through the backflow pipe, and the drying agent in the drying agent box can dry the air, thereby realizing the purpose of transformer moisture-proofing;

[0016] 2, when the pressure in the box is relatively large, the pressure is greater than the elastic force of the compression spring, and the pressure in the box can drive the sealing seat to move, the movement of the sealing seat can compress the compression spring, and when the L-shaped through hole is communicated with the pressure relief hole during the movement of the sealing seat, the box can be relieved through the pressure relief hole, thereby realizing the purpose of explosion-proof;

[0017] 3, through the action of hand wheel, drive screw and threaded hole, the drive screw can extrude the adjusting seat, so that the adjusting seat can move, and the distance between the adjusting seat and the sealing seat is adjusted, thereby realizing the purpose of adjusting the elastic force of the compression spring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the transformer moisture-proof and explosion-proof protection device;

[0019] Figure 2The utility model provides a kind of sectional view three-dimensional structure schematic diagram of transformer moisture-proof explosion-proof protection device proposed by the utility model;

[0020] Figure 3 The utility model provides a kind of partial three-dimensional structure schematic diagram of drying cabinet of transformer moisture-proof explosion-proof protection device proposed by the utility model;

[0021] Figure 4 The utility model provides a kind of structure schematic diagram of A part of transformer moisture-proof explosion-proof protection device proposed by the utility model.

[0022] In the drawing: 101, box body;102, transformer;201, humidity sensor;202, drying cabinet;203, circulating fan;204, exhaust pipe;205, return air pipe;301, support seat;302, desiccant box;401, pressure relief cylinder;402, sealing seat;403, pressure relief hole;404, L-shaped through hole;501, T-shaped limiting rod;502, adjusting seat;503, pressure sensor;504, compression spring;601, screw hole;602, drive screw;603, hand wheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings Figures 1-4 Further detailed description is made to the present application.

[0024] The embodiment of the application discloses a kind of transformer moisture-proof explosion-proof protection device.

[0025] Refer to Figures 1-4 A kind of transformer moisture-proof explosion-proof protection device, including box body 101, transformer 102 is installed in box body 101, and moisture-proof assembly and explosion-proof assembly are equipped in box body 101, moisture-proof assembly includes drying cabinet 202, circulating fan 203, desiccant box 302, exhaust pipe 204 and return air pipe 205, drying cabinet 202 is fixedly installed in the side of box body 101, circulating fan 203 is installed in drying cabinet 202, and desiccant box 302 is installed in drying cabinet 202, and the top of the side of drying cabinet 202 is installed with the exhaust pipe 204 that is connected with box body 101, and the bottom of the side of drying cabinet 202 is installed with the return air pipe 205 that is connected with box body 101;Explosion-proof assembly includes pressure relief cylinder 401, pressure relief hole 403, sealing seat 402 and L-shaped through hole 404, pressure relief cylinder 401 is installed on the other side top of box body 101, sealing seat 402 is slidably sealedly installed in pressure relief cylinder 401, L-shaped through hole 404 is formed in sealing seat 402, and pressure relief hole 403 that is adapted to L-shaped through hole 404 is formed in the bottom of pressure relief cylinder 401.

[0026] In the embodiment, the moisture-proof assembly further comprises a humidity sensor 201 fixedly installed on the inner wall of the top of the box body 101, and support seats 301 are fixedly installed on the inner walls of the two sides of the drying box 202, and a desiccant box 302 is detachably installed on the support seat 301 by bolts. The humidity sensor 201 can accurately and timely monitor the humidity change in the box body 101, and provide reliable data support for the moisture-proof system; the detachable desiccant box 302 design facilitates users to replace or regenerate the desiccant in time, ensures the continuity of the moisture-proof effect, effectively reduces the maintenance cost, and improves the practicability of the device.

[0027] In the embodiment, a plurality of guide holes are formed in the inner wall of one side of the pressure relief cylinder 401, a plurality of T-shaped limiting rods 501 are fixedly installed on one side of the sealing seat 402, and the T-shaped limiting rods 501 are in sliding sealing connection with the corresponding guide holes. The cooperation of the T-shaped limiting rods 501 and the guide holes provides accurate guidance and stable support for the sliding of the sealing seat 402, ensures that the sealing seat 402 maintains good sealing performance and stability during movement, effectively prevents gas leakage, and ensures the reliable operation of the explosion-proof assembly.

[0028] In the embodiment, the same adjusting seat 502 is slidably sleeved on the plurality of T-shaped limiting rods 501, a pressing mechanism is arranged between the adjusting seat 502 and the sealing seat 402, the pressing mechanism comprises a pressure sensor 503 and a compression spring 504, the pressure sensor 503 is fixedly installed on one side of the adjusting seat 502, one side of the pressure sensor 503 is provided with the compression spring 504, and one end of the compression spring 504 is fixedly installed on the sealing seat 402. The pressure sensor 503 monitors the pressure of the compression spring 504 in real time, feeds back the data to the controller, and realizes dynamic monitoring of the pressure in the box body 101; the compression spring 504 cooperates with the adjusting seat 502 to flexibly adjust the pressure relief threshold, so that the device can adapt to the explosion-proof requirements under different working conditions, and the adaptability and safety of the device are enhanced.

[0029] In the embodiment, a threaded hole 601 is formed in the inner wall of one side of the pressure relief cylinder 401, a drive screw 602 is screwedly installed in the threaded hole 601, the drive screw 602 is in contact with the adjusting seat 502, and one end of the drive screw 602 extends to the outside of the pressure relief cylinder 401 and is fixedly installed with a hand wheel 603. The drive screw 602 is driven by rotating the hand wheel 603, the adjusting seat 502 is accurately adjusted by using the screw transmission principle, the operation is simple and convenient, complex tools are not needed, the staff can quickly adjust the pressure relief pressure of the explosion-proof assembly according to actual needs, and the use flexibility of the device is improved.

[0030] In the embodiment, the controller is mounted on the front side of the box 101, and the humidity sensor 201, the circulating fan 203 and the pressure sensor 503 are electrically connected with the controller. The controller is the "brain" of the whole device, and uniformly receives and processes the data of the humidity sensor 201 and the pressure sensor 503, and controls the working of the circulating fan 203 and other components, realizes the intelligent linkage of the moisture-proof and explosion-proof function, improves the automation degree and operation efficiency of the device, reduces the manual intervention, and guarantees the safe and stable operation of the transformer 102.

[0031] In the utility model, the humidity sensor 201 is arranged, the humidity in the box 101 where the transformer 102 is placed can be monitored, when the humidity is higher than the set value, the circulating fan 203 can be driven by the controller, the gas in the box 101 can be extracted through the air extraction pipe 204, the extracted air passes through the desiccant box 302 and returns to the box 101 through the return pipe, the air can be dried by the desiccant in the desiccant box 302, so that the purpose of preventing the transformer 102 from being damp is realized, when the pressure in the box 101 is relatively large, the pressure is greater than the elastic force of the compression spring 504, the pressure in the box 101 can drive the sealing seat 402 to move, the movement of the sealing seat 402 can compress the compression spring 504, when the L-shaped through hole 404 is communicated with the pressure relief hole 403 during the movement of the sealing seat 402, the box 101 can be relieved through the pressure relief hole 403 at this time, so that the purpose of explosion-proof is realized, the hand wheel 603 can drive the driving screw 602 to rotate by rotating the hand wheel 603, under the action of the threaded hole 601, the driving screw 602 can rotate and move at the same time, the driving screw 602 can extrude the adjusting seat 502, so that the adjusting seat 502 can move, the distance between the adjusting seat 502 and the sealing seat 402 is adjusted, so that the purpose of adjusting the elastic force of the compression spring 504 is realized.

[0032] The above are the preferred embodiments of the application, not the limitation of the protection scope of the application, therefore: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A transformer moisture-proof and explosion-proof protection device, characterized in that, Including box (101), the transformer (102) is installed in the box (101), and the box (101) is provided with moisture-proof assembly and explosion-proof assembly; The moisture-proof assembly includes a drying box (202), a circulating fan (203), a desiccant box (302), an exhaust pipe (204) and a return air pipe (205), one side of the box (101) is fixedly provided with the drying box (202), the circulating fan (203) is installed in the drying box (202), and the desiccant box (302) is installed in the drying box (202), one side of the drying box (202) is provided with the exhaust pipe (204) communicated with the box (101), and the return air pipe (205) communicated with the box (101) is installed on the bottom of the drying box (202); The explosion-proof assembly includes a pressure relief cylinder (401), a pressure relief hole (403), a sealing seat (402) and an L-shaped through hole (404), the pressure relief cylinder (401) is installed on the other side top of the box (101), the sealing seat (402) is slidably and sealingly installed in the pressure relief cylinder (401), the L-shaped through hole (404) is formed in the sealing seat (402), and the pressure relief hole (403) matched with the L-shaped through hole (404) is formed in the bottom of the pressure relief cylinder (401).

2. The moisture-proof and explosion-proof protection device for transformer according to claim 1, characterized in that, The moisture-proof assembly further comprises a fixed humidity sensor (201) fixedly installed on the inner wall of the top of the box (101).

3. The moisture-proof and explosion-proof protection device for transformer according to claim 1, characterized in that, Supporting seats (301) are fixedly installed on the inner walls of the two sides of the drying box (202), and the desiccant box (302) is detachably installed on the supporting seat (301) through bolts.

4. The moisture-proof and explosion-proof protection device for transformer according to claim 1, characterized in that, A plurality of guide holes are formed in the inner wall of one side of the pressure relief cylinder (401), a plurality of T-shaped limiting rods (501) are fixedly installed on one side of the sealing seat (402), and the T-shaped limiting rods (501) are slidably and sealingly connected with the corresponding guide holes.

5. The moisture-proof and explosion-proof protection device for transformer according to claim 4, characterized in that, A same adjusting seat (502) is slidably sleeved on the plurality of T-shaped limiting rods (501), and a pressing mechanism is arranged between the adjusting seat (502) and the sealing seat (402).

6. A moisture-proof and explosion-proof protection device for a transformer according to claim 5, characterized in that, The pressing mechanism includes a pressure sensor (503) and a compression spring (504), the pressure sensor (503) is fixedly installed on one side of the adjusting seat (502), the compression spring (504) is installed on one side of the pressure sensor (503), and one end of the compression spring (504) is fixedly installed on the sealing seat (402).

7. The moisture-proof and explosion-proof protection device for transformer according to claim 5, characterized in that, Threaded holes (601) are formed in the inner wall of one side of the pressure relief cylinder (401), a drive screw (602) is threadedly installed in the threaded hole (601), the drive screw (602) is in contact with the adjusting seat (502), and one end of the drive screw (602) extends to the outside of the pressure relief cylinder (401) and is fixedly installed with a hand wheel (603).

8. The moisture-proof and explosion-proof protection device for transformer according to claim 1, characterized in that, A controller is installed on the front side of the box (101), and the humidity sensor (201), the circulating fan (203) and the pressure sensor (503) are electrically connected with the controller.

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