A dry-type transformer with automatic fire extinguishing function

Abstract

The present invention discloses a dry-type transformer with an automatic fire extinguishing function, which relates to the technical field of dry-type transformers. The transformer comprises a body, a heat dissipation device is fixedly installed on the right inner wall of the body, a water spraying 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, an air inlet is provided on the right side of the body, the heat dissipation device comprises a bellows, a fan, a striker, a slider and a striker, the bellows is fixedly installed on the right inner wall of the body, the fan is rotatably installed on the left side of the inner wall of the bellows, the striker is rotatably installed on the inner wall of the fan shaft, a groove is provided on the inner wall of the fan shaft, the slider is slidably installed on the left side of the inner wall of the bellows, and the striker is fixedly installed on the left side of the inner wall of the bellows. The fan built 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.

Description

Technical Field

[0001] The present 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 typically used in locations requiring 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] 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 support mechanism, a fixed fire extinguishing mechanism and a buzzer. The support mechanism includes a shell, a support 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 support plate and a movable fire extinguishing mechanism. The support plate is provided with a slide. The corresponding two side surfaces of the shell are respectively connected to 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, and the controller will control the buzzer to sound a warning to the surroundings. A gas tank is provided. When the smoke sensor detects a fire, the electric valve can cause the inert gas in the gas tank to be ejected from the nozzle, thereby effectively reducing the oxygen content inside the shell and playing a role in extinguishing the fire.

[0004] In the above invention, a support plate and a mobile fire extinguishing mechanism are provided 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 is generated inside the transformer during operation and cannot be dissipated in time. In addition, when a fire occurs, if the smoke sensor fails and cannot send information, the fire extinguishing device cannot be activated in time, which will cause great danger. Summary of the Invention

[0005] 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.

[0006] 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 sink fixedly mounted on the right inner wall of the body, a water spray device fixedly mounted on the top of the heat sink, an automatic fire extinguishing device fixedly mounted on the top of the inner wall of the body, and an air inlet opened on the right side of the body;

[0007] Among them, the heat dissipation device includes a bellows, a fan, a striker, a slider and a striker. 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 into the bellows blows air outward, driving the gas flow in the body so that the body is always in contact with cold air to achieve a cooling effect.

[0008] 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 collection 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.

[0009] 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, causing the slider to push 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.

[0010] 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 engaged with the pinion, and the pinion is engaged 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 and reduce dust at multiple angles.

[0011] According to the above technical solution, 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 and the rubber block melts, 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.

[0012] 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 and melts the rubber block. 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.

[0013] The present invention provides a dry-type transformer with automatic fire extinguishing function. It has the following beneficial effects:

[0014] (1) This invention uses a fan built into the bellows to blow air outwards, driving the flow of gas inside the machine so that the machine is always in contact with cold air to achieve a cooling effect. The rotation of the fan then hits the slider to vibrate the bellows, shaking off the dust on the bellows into the collection tank below for easy cleaning.

[0015] (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.

[0016] (3) This invention uses the contact between the impact cone and the rubber block. When the heat sensor is damaged, the temperature rises and the rubber block melts. 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

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic cross-sectional view of part of the structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the bellows structure of the present invention;

[0020] Figure 4 This is a schematic cross-sectional view of the bellows structure of the present invention;

[0021] Figure 5 This is a structural diagram of the fire extinguishing device of the present invention;

[0022] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure B in the middle;

[0023] Figure 7 For the present invention Figure 4 A magnified schematic diagram of the structure in the middle.

[0024] 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 pipe; 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

[0025] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 7 A dry-type transformer with an automatic fire extinguishing function includes 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;

[0027] 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 provided 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.

[0028] 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 collection groove is provided at the bottom of the bellows 2, the elastic push rod 207 is fixedly installed on the top of the impact 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 to 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.

[0029] 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 mounted 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 mounted 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.

[0030] The water spraying device also includes a rack 304, a small gear 305, a large gear 306 and a nozzle 307. The rack 304 is fixedly mounted on the bottom of the T-shaped pressure rod 301, the small gear 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, and the nozzle 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 engaged with the small gear 305, and the small gear 305 is engaged with the large gear 306. The push rod 205 then pushes the rack 304 downward to drive the nozzle 307 to rotate, so that the nozzle 307 can spray water and reduce dust at multiple angles.

[0031] The automatic fire extinguishing device includes 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. The gas tank 401 is fixedly mounted on the right side of the inner wall of the body 1, the gas pipe 402 is fixedly mounted on the top of the inner wall of the body 1, the thermal sensor 403 is fixedly mounted on the top of the inner wall of the 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. When the thermal sensor 403 is damaged, the temperature rises and the rubber block 410 melts. The impact cone 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.

[0032] 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 heat sensor 403 is damaged, the temperature rises and melts the rubber block 410. 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.

[0033] During operation: the motor outside the bellows 2 starts and drives the fan 201 to rotate, and the rotation of the fan 201 drives the striker 202 to rotate, and the striker 202 rotates to strike the striker block 208 to generate vibration, and the striker 202 rotates to strike the slider 203 to slide upward, and the slider 203 slides upward to drive the pull rod 204 to move upward, and the pull rod 204 moves upward to push the push rod 205 to move forward, and the push rod 205 moves forward to push the push block 206 forward, and the slider 203 slides upward to push the elastic push rod 207 to move upward, and the elastic push rod 207 moves upward to push the T-shaped pressure rod 301 to rotate, and the T-shaped pressure rod 301 rotates to open the water valve 303, and the T-shaped pressure rod 301 rotates to drive the rack 304 to move downward, and the rack 304 moves downward to drive the small gear 305 to rotate, and the small gear 305 rotates to drive the large gear 306 to rotate, and the large gear 306 rotates to drive the nozzle 307 to rotate.

[0034] 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 air valve 406. When a fire occurs, the thermal sensor 403 is damaged, and the temperature rises to melt the rubber block 410. The melted rubber block 410 disengages the limit and moves downward, and the impact cone 408 moves downward to knock the air valve 406 open.

[0035] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 (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 the fan (201); a groove is provided on the inner wall of the fan (201); the slider (203) is slidably mounted on the left inner wall of the bellows (2); and the striker (208) is fixedly mounted on the left inner wall of the bellows (2); The heat dissipation device further comprises a pull rod (204), a push rod (205), a push block (206) and an elastic push rod (207), wherein 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.

2. The dry-type transformer with automatic fire extinguishing function according to claim 1, characterized in that: The water spraying device comprises a T-shaped pressure rod (301), a nozzle (302), a water valve (303) and a water tank (308), wherein the T-shaped pressure rod (301) is rotatably mounted on the top of the wind box (2), the nozzle (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 nozzle (302), and the water tank (308) is fixedly mounted on the top of the wind box (2).

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

4. The dry-type transformer with automatic fire extinguishing function according to claim 3, 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 body (1), the gas pipe (402) is fixedly mounted on the top of the inner wall of the body (1), the thermal sensor (403) is fixedly mounted on the top of the inner wall of the 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).

5. The dry-type transformer with automatic fire extinguishing function according to claim 4, characterized in that: The automatic fire extinguishing device further comprises a striker (408), an L-shaped support rod (409) and a rubber block (410), wherein the striker (408) is connected to the top of the inner wall of the body (1) via a spring, the L-shaped support rod (409) is fixedly mounted on the top of the inner wall of the body (1), and the rubber block (410) is fixedly mounted on the bottom of the striker (408).

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