Dry-type transformer with automatic fire extinguishing function

Abstract

The invention discloses a dry-type transformer with an automatic fire extinguishing function, and relates to the technical field of dry-type transformers, the dry-type transformer comprises a machine body, a heat dissipation device is fixedly mounted on the inner wall of the right side of the machine body, a water spraying device is fixedly mounted on the top of the heat dissipation device, and an automatic fire extinguishing device is fixedly mounted on the top of the inner wall of the machine body; the heat dissipation device comprises an air bellow, a fan, a collision rod, a sliding block and a collision block, the air bellow is fixedly installed on the inner wall of the right side of the machine body, the fan is rotationally installed on the left side of the inner wall of the air bellow, the collision rod is rotationally installed on the inner wall of a fan rotating shaft, and a groove is formed in the inner wall of the fan rotating shaft; the sliding block is slidably installed on the left side of the inner wall of the air bellow, the collision block is fixedly installed on the left side of the inner wall of the air bellow, and air in the machine body is driven to flow through air blown outwards by a fan arranged in the air bellow so that the machine body can make contact with cold air all the time to achieve the cooling effect.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer with an automatic fire extinguishing function. Background Art

[0002] They are often used in places that require higher safety and reliability, such as indoor power distribution systems, hospitals, factories, etc., to reduce safety risks such as oil leakage or explosion that may occur in liquid-insulated transformers.

[0003] The patent with the patent announcement number CN113921255B relates to the technical field of dry-type transformers. The present invention discloses a dry-type transformer with an automatic fire extinguishing function, including a supporting mechanism, a fixed fire extinguishing mechanism and a buzzer. The supporting mechanism includes a shell, a supporting plate, a slide, an inspection plate, a partition plate, a heat dissipation hole, a heat dissipation fan, a dust cover, a limit spring and a limit plate. The shell is provided with a supporting plate and a mobile fire extinguishing mechanism. The supporting plate is provided with a slide. The corresponding two side surfaces of the shell are respectively connected with an inspection plate and a dust cover. The dry-type transformer with an automatic fire extinguishing function is provided with a smoke sensor. When the smoke sensor detects a fire, the smoke sensor will transmit this information to the controller. The controller will control the buzzer to sound to warn the surroundings. A gas storage tank is provided. When the smoke sensor detects a fire, the electric valve can make the inert gas in the gas storage tank spray out from the nozzle, thereby effectively reducing the oxygen content inside the shell, thereby playing a role in extinguishing the fire. In the above invention, a support plate and a mobile fire extinguishing mechanism are arranged in the shell, a slide groove is provided on the support plate, and an inspection plate and a dust cover are respectively connected to the corresponding two side surfaces of the shell. Although the dust cover can prevent dust, a large amount of heat will be generated inside the transformer during operation and cannot be dissipated in time. When a fire occurs, the smoke sensor fails and cannot send information, and the fire extinguishing device cannot be started in time, which will cause great danger. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a dry-type transformer with an automatic fire extinguishing function, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A dry-type transformer with automatic fire extinguishing function, comprising a body, a heat dissipation device is fixedly installed on the right inner wall of the body, a water spray device is fixedly installed on the top of the heat dissipation device, an automatic fire extinguishing device is fixedly installed on the top of the inner wall of the body, and an air inlet is opened on the right side of the body; Among them, the heat dissipation device includes a bellows, a fan, a striker, a slider and a striker block. The bellows is fixedly installed on the right inner wall of the body, the fan is rotatably installed on the left inner wall of the bellows, the striker is rotatably installed on the inner wall of the fan shaft, a groove is opened on the inner wall of the fan shaft, the slider is slidably installed on the left inner wall of the bellows, and the striker is fixedly installed on the left inner wall of the bellows. The fan built-in into the bellows blows air outwards, driving the gas flow in the body so that the body is always in contact with cold air to achieve a cooling effect.

[0006] According to the above technical solution, the heat dissipation device also includes a pull rod, a push rod, a push block and an elastic push rod. The pull rod is fixedly installed on the right side of the slider, the push rod is slidably installed on the bottom of the bellows, the push block is slidably installed on the bottom of the bellows, a collecting groove is opened at the bottom of the bellows, the elastic push rod is fixedly installed on the top of the impact block, a spring is provided between the slider and the bellows, and the contact surface between the pull rod and the push rod is set as an inclined plane. The rotation of the fan hits the slider to make the bellows vibrate and shake off the dust on the bellows into the collection groove below for easy cleaning.

[0007] According to the above technical solution, the water spraying device includes a T-shaped pressure rod, a nozzle, a water valve and a water tank. The T-shaped pressure rod is rotatably installed on the top of the bellows, the nozzle is fixedly installed through the top of the bellows, the water valve is rotatably installed on the circumferential surface of the nozzle, and the water tank is fixedly installed on the top of the bellows. The rotation of the fan hits the slider so that the slider pushes the push rod, so that the push rod opens the water valve to spray water to reduce dust and prevent dust from flying around and entering the body to affect the operation of the transformer.

[0008] According to the above technical solution, the water spraying device also includes a rack, a pinion, a large gear and a nozzle, the rack is fixedly installed at the bottom of the T-shaped pressure rod, the pinion is rotatably installed at the top of the bellows, the large gear is rotatably installed at the top of the inner wall of the bellows, and the nozzle is fixedly installed at the bottom of the large gear. A spring is provided between the T-shaped pressure rod and the bellows, the rack is meshed with the pinion, and the pinion is meshed with the large gear. The rack is then pushed downward by the push rod to drive the nozzle to rotate, so that the nozzle can spray water at multiple angles to reduce dust.

[0009] According to the above technical scheme, the automatic fire extinguishing device includes a gas tank, a gas pipe, a thermal sensor, a thermistor, an electromagnetic push rod, a gas valve and a gas valve stem. The gas tank is fixedly installed on the right side of the inner wall of the machine body, the gas pipe is fixedly installed on the top of the inner wall of the machine body, the thermal sensor is fixedly installed on the top of the inner wall of the machine body, the thermistor is fixedly installed on the thermal sensor, the electromagnetic push rod is fixedly installed on the top of the thermistor, the gas valve is fixedly installed on the gas pipe on the inner circumferential surface of the thermal sensor, and the gas valve stem is rotatably installed inside the gas valve. When the thermal sensor is damaged, the temperature rises to melt the rubber block, the impact cone moves downward to knock open the gas valve, and the inert gas stored in the gas tank is sprayed out through the gas tank nozzle to achieve the fire extinguishing effect.

[0010] According to the above technical solution, the automatic fire extinguishing device also includes a striker, an L-shaped support rod and a rubber block. The striker is connected to the top of the inner wall of the machine body through a spring, the L-shaped support rod is fixedly installed on the top of the inner wall of the machine body, and the rubber block is fixedly installed at the bottom of the striker. When the thermal sensor is damaged, the temperature rises to melt the rubber block, and the striker moves downward to knock open the gas valve, and the inert gas stored in the gas tank is sprayed out through the gas tank nozzle to achieve the fire extinguishing effect.

[0011] The present invention provides a dry-type transformer with automatic fire extinguishing function. It has the following beneficial effects: (1) The invention uses a fan built into the bellows to blow air outwards, driving the gas flow inside the machine so that the machine is always in contact with cold air to achieve a cooling effect. The fan then rotates to hit the slider, causing the bellows to vibrate and shake off dust on the bellows into a collection tank below for easy cleaning.

[0012] (2) This invention uses the rotation of the fan to hit the slider, which pushes the push rod, causing the push rod to open the water valve to spray water to reduce dust and prevent dust from flying around and entering the body to affect the operation of the transformer. The push rod then pushes the rack downward to drive the nozzle to rotate, so that the nozzle can spray water at multiple angles to reduce dust.

[0013] (3) This invention, through the contact between the impact cone and the rubber block, when the thermal sensor is damaged, the temperature rises and melts the rubber block, and the impact cone moves downward to knock open the gas valve, and the inert gas stored in the gas tank is sprayed out through the gas tank nozzle to achieve the fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of part of the structure of the present invention; Figure 3 It is a schematic diagram of the bellows structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the bellows structure of the present invention; Figure 5 It is a schematic diagram of the structure of the fire extinguishing device of the present invention; Figure 6 For the present invention Figure 5 Middle B is an enlarged schematic diagram of the structure; Figure 7 For the present invention Figure 4 A magnified schematic diagram of the structure in the middle.

[0015] In the figure: 1. body; 2. bellows; 201. fan; 202. striker; 203. slider; 204. pull rod; 205. push rod; 206. push block; 207. elastic push rod; 208. striker; 301. T-shaped pressure rod; 302. nozzle; 303. water valve; 304. rack; 305. small gear; 306. large gear; 307. nozzle; 308. water tank; 401. gas tank; 402. gas pipeline; 403. thermal sensor; 404. thermistor; 405. electromagnetic push rod; 406. gas valve; 407. gas valve stem; 408. striker; 409. L-shaped support rod; 410. rubber block; 5. air inlet. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 7 , a dry-type transformer with automatic fire extinguishing function, comprising a body 1, a heat dissipation device is fixedly installed on the right inner wall of the body 1, a water spray device is fixedly installed on the top of the heat dissipation device, an automatic fire extinguishing device is fixedly installed on the top of the inner wall of the body 1, and an air inlet 5 is opened on the right side of the body 1; Among them, the heat dissipation device includes a bellows 2, a fan 201, a striker 202, a slider 203 and a striker 208. The bellows 2 is fixedly installed on the right inner wall of the body 1, the fan 201 is rotatably installed on the left inner wall of the bellows 2, the striker 202 is rotatably installed on the inner wall of the fan 201 shaft, a groove is opened on the inner wall of the fan 201 shaft, the slider 203 is slidably installed on the left inner wall of the bellows 2, and the striker 208 is fixedly installed on the left inner wall of the bellows 2. The fan 201 built into the bellows 2 blows air outward, driving the gas flow in the body 1 so that the body 1 is always in contact with cold air to achieve a cooling effect.

[0018] The heat dissipation device also includes a pull rod 204, a push rod 205, a push block 206 and an elastic push rod 207. The pull rod 204 is fixedly installed on the right side of the slider 203, the push rod 205 is slidably installed at the bottom of the bellows 2, the push block 206 is slidably installed at the bottom of the bellows 2, a collecting groove is opened at the bottom of the bellows 2, the elastic push rod 207 is fixedly installed on the top of the collision block 208, a spring is provided between the slider 203 and the bellows 2, and the contact surface between the pull rod 204 and the push rod 205 is set as an inclined plane. The rotation of the fan 201 hits the slider 203 to make the bellows 2 vibrate and shake off the dust on the bellows 2 into the collection groove below for easy cleaning.

[0019] The water spraying device includes a T-shaped pressure rod 301, a nozzle 302, a water valve 303 and a water tank 308. The T-shaped pressure rod 301 is rotatably installed on the top of the bellows 2, the nozzle 302 is fixedly installed through the top of the bellows 2, the water valve 303 is rotatably installed on the circumferential surface of the nozzle 302, and the water tank 308 is fixedly installed on the top of the bellows 2. The rotation of the fan 201 hits the slider 203 so that the slider 203 pushes the push rod 205, so that the push rod 205 opens the water valve 303 to spray water to reduce dust and prevent dust from flying around and entering the body 1 to affect the operation of the transformer.

[0020] The water spraying device also includes a rack 304, a pinion 305, a large gear 306 and a nozzle 307. The rack 304 is fixedly installed at the bottom of the T-shaped pressure rod 301, the pinion 305 is rotatably installed at the top of the bellows 2, the large gear 306 is rotatably installed at the top of the inner wall of the bellows 2, and the nozzle 307 is fixedly installed at the bottom of the large gear 306. A spring is provided between the T-shaped pressure rod 301 and the bellows 2, the rack 304 is meshed with the pinion 305, the pinion 305 is meshed with the large gear 306, and then the push rod 205 pushes the rack 304 downward to drive the nozzle 307 to rotate, so that the nozzle 307 can spray water at multiple angles to reduce dust.

[0021] The automatic fire extinguishing device includes a gas cylinder 401, a gas pipe 402, a thermal sensor 403, a thermistor 404, an electromagnetic push rod 405, a gas valve 406 and a gas valve stem 407. The gas cylinder 401 is fixedly installed on the right side of the inner wall of the body 1, the gas pipe 402 is fixedly installed on the top of the inner wall of the body 1, the thermal sensor 403 is fixedly installed on the top of the inner wall of the body 1, the thermistor 404 is fixedly installed on the thermal sensor 403, the electromagnetic push rod 405 is fixedly installed on the top of the thermistor 404, the gas valve 406 is fixedly installed on the gas pipe 402 on the inner circumferential surface of the thermal sensor 403, and the gas valve stem 407 is rotatably installed inside the gas valve 406. When the thermal sensor 403 is damaged, the temperature rises to melt the rubber block 410, the impact cone 408 moves downward to knock open the gas valve 406, and the inert gas stored in the gas cylinder 401 is sprayed out through the nozzle of the gas cylinder 401 to achieve the fire extinguishing effect.

[0022] The automatic fire extinguishing device also includes a striker 408, an L-shaped support rod 409 and a rubber block 410. The striker 408 is connected to the top of the inner wall of the body 1 through a spring, the L-shaped support rod 409 is fixedly installed on the top of the inner wall of the body 1, and the rubber block 410 is fixedly installed at the bottom of the striker 408. When the thermal sensor 403 is damaged, the temperature rises to melt the rubber block 410, and the striker 408 moves downward to knock open the gas valve 406, and the inert gas stored in the gas tank 401 is sprayed out through the nozzle of the gas tank 401 to achieve the fire extinguishing effect.

[0023] During operation: the motor outside the bellows 2 starts and drives the fan 201 to rotate, the rotation of the fan 201 drives the impact rod 202 to rotate, the impact rod 202 rotates and hits the impact block 208 to generate vibration, the impact rod 202 rotates and hits the slider 203 to slide upward, the slider 203 slides upward and drives the pull rod 204 to move upward, the pull rod 204 moves upward and pushes the push rod 205 to move forward, the push rod 205 moves forward and pushes the push block 206 forward, the slider 203 slides upward and drives the elastic push rod 207 to move upward, the elastic push rod 207 moves upward and drives the T-shaped pressure rod 301 to rotate, the T-shaped pressure rod 301 rotates to press the water valve 303, the T-shaped pressure rod 301 rotates and drives the rack 304 to move downward, the rack 304 moves downward and drives the small gear 305 to rotate, the small gear 305 rotates and drives the large gear 306 to rotate, and the large gear 306 rotates and drives the nozzle 307 to rotate.

[0024] When a fire occurs, the temperature rises to the warning range, the thermistor 404 transmits information to the electromagnetic push rod 405, and the electromagnetic push rod 405 pushes upward to open the gas valve 406. When a fire occurs, the thermal sensor 403 is damaged, and the temperature rises to melt the rubber block 410. The rubber block 410 melts and the impact cone 408 breaks away from the limit and moves downward. The impact cone 408 moves downward to knock the gas valve 406 open.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type transformer with automatic fire extinguishing function, comprising a body (1), characterized in that: A heat dissipation device is fixedly mounted on the inner wall of the right side of the machine body (1), a water spray device is fixedly mounted on the top of the heat dissipation device, an automatic fire extinguishing device is fixedly mounted on the top of the inner wall of the machine body (1), and an air inlet (5) is opened on the right side of the machine body (1); The heat dissipation device comprises a bellows (2), a fan (201), a striker (202), a slider (203) and a striker block (208); the bellows (2) is fixedly mounted on the right inner wall of the machine body (1); the fan (201) is rotatably mounted on the left inner wall of the bellows (2); the striker (202) is rotatably mounted on the inner wall of a rotating shaft of the fan (201); a groove is provided on the inner wall of the rotating shaft of the fan (201); the slider (203) is slidably mounted on the left inner wall of the bellows (2); and the striker block (208) is fixedly mounted on the left inner wall of the bellows (2).

2. A dry-type transformer with automatic fire extinguishing function according to claim 1, characterized in that: The heat dissipation device further comprises a pull rod (204), a push rod (205), a push block (206) and an elastic push rod (207); the pull rod (204) is fixedly mounted on the right side of the slider (203); the push rod (205) is slidably mounted on the bottom of the bellows (2); the push block (206) is slidably mounted on the bottom of the bellows (2); a collecting groove is provided at the bottom of the bellows (2); the elastic push rod (207) is fixedly mounted on the top of the collision block (208); a spring is provided between the slider (203) and the bellows (2); and the contact surface between the pull rod (204) and the push rod (205) is set as an inclined surface.

3. The dry-type transformer with automatic fire extinguishing function according to claim 2 is characterized in that: The water spraying device comprises a T-shaped pressure rod (301), a spray pipe (302), a water valve (303) and a water tank (308); the T-shaped pressure rod (301) is rotatably mounted on the top of the wind box (2); the spray pipe (302) is fixedly mounted through the top of the wind box (2); the water valve (303) is rotatably mounted on the circumferential surface of the spray pipe (302); and the water tank (308) is fixedly mounted on the top of the wind box (2).

4. The dry-type transformer with automatic fire extinguishing function according to claim 3 is characterized in that: The water spraying device further comprises a rack (304), a pinion (305), a large gear (306) and a spray head (307); the rack (304) is fixedly mounted on the bottom of the T-shaped pressure rod (301); the pinion (305) is rotatably mounted on the top of the bellows (2); the large gear (306) is rotatably mounted on the top of the inner wall of the bellows (2); the spray head (307) is fixedly mounted on the bottom of the large gear (306); a spring is provided between the T-shaped pressure rod (301) and the bellows (2); the rack (304) is meshed with the pinion (305); and the pinion (305) is meshed with the large gear (306).

5. The dry-type transformer with automatic fire extinguishing function according to claim 4 is characterized in that: The automatic fire extinguishing device comprises a gas tank (401), a gas pipe (402), a thermal sensor (403), a thermistor (404), an electromagnetic push rod (405), a gas valve (406) and a gas valve stem (407), wherein the gas tank (401) is fixedly mounted on the right side of the inner wall of the machine body (1), the gas pipe (402) is fixedly mounted on the top of the inner wall of the machine body (1), the thermal sensor (403) is fixedly mounted on the top of the inner wall of the machine body (1), the thermistor (404) is fixedly mounted on the thermal sensor (403), the electromagnetic push rod (405) is fixedly mounted on the top of the thermistor (404), the gas valve (406) is fixedly mounted on the gas pipe (402) on the inner circumferential surface of the thermal sensor (403), and the gas valve stem (407) is rotatably mounted inside the gas valve (406).

6. The dry-type transformer with automatic fire extinguishing function according to claim 5, characterized in that: The automatic fire extinguishing device further comprises a striker cone (408), an L-shaped support rod (409) and a rubber block (410); the striker cone (408) is connected to the top of the inner wall of the machine body (1) via a spring; the L-shaped support rod (409) is fixedly mounted on the top of the inner wall of the machine body (1); and the rubber block (410) is fixedly mounted on the bottom of the striker cone (408).

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