Early warning type transformer capable of preventing fire

By designing multifunctional heat dissipation mechanism and fire extinguishing components on the dry transformer, efficient heat dissipation and precise fire extinguishing of the dry transformer are achieved, and the fire risk caused by poor heat dissipation is solved and dual fire protection is provided.

CN120261118APending Publication Date: 2025-07-04HEBEI CARRY FORWARD ELECTRICAL EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510578185.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

The heat dissipation of dry transformers is poor, which increases the risk of fire due to excessive internal temperature. Moreover, oil-type transformers cannot be used in some occasions due to being filled with flammable liquid oil, which poses safety risks.

Method used

A fire-proof early warning transformer is designed, including a multi-functional heat dissipation mechanism and fire extinguishing components, which can achieve heat dissipation adjustment through air ducts and air outlet adjustment arc plates, and is equipped with sensors and acoustic and light alarms for real-time monitoring and alarm, accurately positioning the fire point and spraying fire extinguishing gas.

Benefits of technology

Improves the heat dissipation performance of dry transformers, can accurately locate and suppress fires, provide dual fire protection, and reduces fire risks caused by excessive temperatures.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120261118A_ABST
    Figure CN120261118A_ABST
Patent Text Reader

Abstract

The invention discloses an anti-fire early warning type transformer, and relates to the field of transformers. The device comprises a dry-type transformer, an early warning type transformer protection box and a fire early warning system are installed outside the dry-type transformer, the early warning type transformer protection box comprises multifunctional heat dissipation mechanisms and a fire extinguishing assembly, the multifunctional heat dissipation mechanisms are slidably connected to the two ends of the dry-type transformer, and the multifunctional heat dissipation mechanisms are used for blowing airflow out of the dry-type transformer. The multifunctional heat dissipation mechanism comprises an air pipe and two sets of air outlet adjusting arc plates, the two sets of air outlet adjusting arc plates are rotationally connected to the outer end of the air pipe, the air outlet adjusting arc plates are used for adjusting the size and orientation of an air outlet of the air pipe, and the fire extinguishing assembly is installed at the outer end of the early warning type transformer protection box. The fire-extinguishing assembly is used for inputting fire-extinguishing gas into the air pipe. According to the device, the heat dissipation performance of the transformer is improved, so that the fire point can be accurately positioned and the fire extinguishing gas can be accurately sprayed to preliminarily suppress the fire when the transformer has a fire.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and specifically to a fire - prevention warning type transformer. Background Art

[0002] A transformer is an electrical energy device that uses the principle of electromagnetic induction to convert AC electrical energy into electrical energy with different parameters such as voltage and current. It is one of the core devices in the power system and is widely used in various links such as power transmission, distribution, and use. The main function of a transformer is to achieve voltage transformation to meet the voltage requirements of different electrical equipment.

[0003] Transformers can be roughly divided into oil - type transformers and dry - type transformers. In some occasions, due to environmental or high - traffic reasons, safety accidents caused by fires will cause serious consequences. Therefore, equipment such as oil - type transformers filled with flammable liquid oil cannot be used. Generally, dry - type transformers are used instead. However, the heat dissipation of dry - type transformers is worse than that of oil - type transformers, which increases the possibility of fires caused by over - high internal temperatures of dry - type transformers. In view of the above situation, the present invention provides a fire - prevention warning type transformer to solve the above problems. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a fire - prevention warning type transformer, which solves the problem that in some occasions, due to environmental or high - traffic reasons, safety accidents caused by fires will cause serious consequences. Therefore, equipment such as oil - type transformers filled with flammable liquid oil cannot be used. Generally, dry - type transformers are used instead. However, the heat dissipation of dry - type transformers is worse than that of oil - type transformers, which increases the possibility of fires caused by over - high internal temperatures of dry - type transformers.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A fire - prevention warning type transformer includes a dry - type transformer. An early - warning type transformer protection box and a fire - warning system are installed outside the dry - type transformer. The early - warning type transformer protection box includes a multi - functional heat - dissipation mechanism and a fire - extinguishing component. The multi - functional heat - dissipation mechanism is slidably connected to both ends of the dry - type transformer. The multi - functional heat - dissipation mechanism is used to blow air flow to the dry - type transformer. The multi - functional heat - dissipation mechanism includes an air duct and an air - outlet adjustment arc plate. There are two groups of air - outlet adjustment arc plates. The two groups of air - outlet adjustment arc plates are rotatably connected to the outer end of the air duct. The air - outlet adjustment arc plate is used to adjust the size and orientation of the air - outlet of the air duct. The fire - extinguishing component is installed at the outer end of the early - warning type transformer protection box. The fire - extinguishing component is used to input fire - extinguishing gas into the air duct.

[0006] Preferably, the dry-type transformer includes a transformer connection plate, an insulating winding, an iron core, and a placement seat. There are two sets of upper and lower transformer connection plates. Wiring terminals are provided on the upper set of transformer connection plates. The insulating winding is fixedly connected inside the transformer connection plate, the iron core is fixedly connected inside the transformer connection plate, and the transformer connection plate, the insulating winding, and the iron core are all installed on the placement seat.

[0007] Preferably, the warning-type transformer protection box further includes a top cover and a housing. An audible and visual alarm is installed on the top cover, and the audible and visual alarm is used for alarming. The top cover is fixedly connected to the top end of the housing. Heat dissipation slotted grooves are provided at both ends of the housing. Gas tank fixing parts are fixedly connected to both ends of the housing. The fire extinguishing assembly is installed inside the gas tank fixing parts. A sensor is installed inside the housing, and the sensor is used to monitor the temperature of the dry-type transformer. There are three sets of upper, middle, and lower sensors.

[0008] Preferably, a displacement member is further provided inside the housing. The displacement member includes a first servo motor, a long lead screw, and a long slide bar. The first servo motor is installed on the top cover. The long lead screw is rotatably connected to the four corners of the housing. The long lead screw is fixedly connected to the power output end of the first servo motor. The long lead screw is used to drive the air duct to move up and down. The long slide bar is installed on both sides of the long lead screw.

[0009] Preferably, the warning-type transformer protection box further includes a base. The housing is fixedly connected to the top end of the base. A fixing groove is provided at one end of the base. A clamping block is fixedly connected inside the fixing groove. A clamping groove is provided at the bottom end of the placement seat. The clamping groove is movably clamped inside the clamping block. A detachable fixing plate is installed at the front end of the fixing groove. The detachable fixing plate is used to fix the dry-type transformer on the base.

[0010] Preferably, the fire extinguishing assembly includes a fire extinguishing gas tank, a gas distribution output member, and a connecting long hose. The fire extinguishing gas tank is installed inside the gas tank fixing part. The fire extinguishing gas tank is used to store carbon dioxide gas. The gas distribution output member is installed at the top end of the air duct. The gas distribution output member is used to evenly output the fire extinguishing gas into the air duct. The gas distribution output member is used to control the switch for the fire extinguishing gas to enter the air duct. One end of the connecting long hose is installed at the output end of the fire extinguishing gas tank, and the other end of the connecting long hose is installed at the input end of the gas distribution output member.

[0011] Preferably, an air outlet groove is provided at the front end of the air duct. The air outlet groove is used to output air flow. Fixed connection blocks are fixedly connected to both ends of the air duct. Moving blocks are also fixedly connected to both ends of the air duct. The moving blocks are slidably connected inside the displacement member. A parallel-connected cooling fan is installed at the back end of the air duct. The parallel-connected cooling fan is used to output air flow and drive the fire extinguishing gas to be output.

[0012] Preferably, one end of the air outlet adjusting arc plate is fixedly connected with a driven rotating ring, and the other end of the air outlet adjusting arc plate is fixedly connected with a driving rotating ring. A second servo motor is arranged outside the driving rotating ring. The second servo motor is installed outside the fixedly connected block. The driving rotating ring is fixedly connected to the power output end of the second servo motor. The driven rotating ring is rotatably connected to another group of second servo motors. A limiting ring is fixedly connected to the second servo motor, and the limiting ring is used for limiting the driven rotating ring.

[0013] Preferably, the fire warning system includes: Detection module: It is composed of a plurality of sensors arrayed on the shell and is used for monitoring the temperature and pressure at multiple points on the surface of the dry-type transformer; Control module: It is electrically connected to the sensors and controls the fire extinguishing gas tank and starts according to the abnormal temperature and pressure data fed back by the sensors, so as to adjust the height and angle, and extinguish fires at different positions; Alarm module: It includes an audible and visual alarm arranged on the top cover, which is signal-connected to the control module and is used for alarming when the temperature and pressure are abnormal.

[0014] The present invention discloses a fire-preventing warning-type transformer, and its beneficial effects are as follows: 1. For this fire-preventing warning-type transformer, by setting a multi-functional heat dissipation mechanism that can be adjusted up and down, the heat dissipation of any part of the dry-type transformer can be carried out. By installing a rotatable and adjustable air outlet adjusting arc plate on the air duct, the size and orientation of the air outlet can be controlled, improving the versatility of the multi-functional heat dissipation mechanism and at the same time improving the heat dissipation performance of the dry-type transformer.

[0015] 2. For this fire-preventing warning-type transformer, by setting a fire extinguishing component outside the dry-type transformer and connecting the fire extinguishing component to the air duct, when a fire occurs in the dry-type transformer, the ignition point can be accurately located and fire extinguishing gas can be accurately sprayed to initially suppress the fire.

[0016] 3. For this fire-preventing warning-type transformer, by setting sensors and audible and visual alarms, when a fire is detected, it can alarm and extinguish the fire in the first time, so that the transformer can obtain double fire prevention guarantees of early warning and fire suppression. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the dry-type transformer of the present invention; Figure 3 This is a schematic diagram of the overall structure of the warning-type transformer protection box of the present invention; Figure 4 This is a schematic diagram of the detailed structure of the warning-type transformer protection box of the present invention; Figure 5 This is a schematic diagram of the sectional structure of the base of the present invention; Figure 6 This is a schematic diagram of the sectional structure of the displacement member of the present invention; Figure 7 This is a schematic diagram of the overall structure of the fire extinguishing component of the present invention; Figure 8 This is a schematic diagram of the explosion structure of the multi-functional heat dissipation mechanism of the present invention; Figure 9 This is a schematic diagram of the detailed structure of the air duct of the present invention; Figure 10 This is a schematic diagram of the overall structure of the air outlet adjusting arc plate of the present invention; Figure 11 This is a schematic diagram of the fire prevention warning system of the present invention.

[0019] In the figure: 1. Warning-type transformer protection box; 11. Top cover; 111. Acousto-optic alarm; 12. Shell; 121. Heat dissipation slot; 122. Sensor; 123. Gas tank fixing part; 13. Base; 131. Block; 132. Fixed slot; 133. Removable fixing plate; 14. Displacement member; 141. First servo motor; 142. Long lead screw; 143. Long slide bar; 2. Dry-type transformer; 21. Transformer connecting plate; 211. Wiring terminal; 22. Insulating winding; 23. Iron core; 24. Placing seat; 241. Card slot; 3. Multi-functional heat dissipation mechanism; 31. Air duct; 311. Air outlet slot; 312. Fixed connection block; 313. Moving block; 314. Parallel heat dissipation fan; 32. Air outlet adjusting arc plate; 321. Driven rotating ring; 322. Driving rotating ring; 323. Second servo motor; 324. Limit ring; 4. Fire extinguishing component; 41. Fire extinguishing gas tank; 42. Connecting long hose; 43. Gas distribution output part. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the embodiment of the present application, by providing a fire - prevention warning - type transformer, it solves the problem that in some occasions, due to reasons such as the environment or a large flow of people, safety accidents caused by fires will result in serious consequences. Therefore, equipment such as oil - type transformers filled with flammable liquid oil cannot be used, so dry - type transformers are generally used. However, the heat dissipation of dry - type transformers is worse than that of oil - type transformers, leading to an increased possibility of fire caused by over - high internal temperature of dry - type transformers.

[0022] To better understand the above - mentioned technical solution, the following will describe the above - mentioned technical solution in detail in combination with the accompanying drawings of the specification and specific implementation manners.

[0023] The embodiment of the present invention discloses a fire - prevention warning - type transformer. Embodiment 1

[0024] As shown in the attached Figures 1-11 figure, It includes a dry - type transformer 2. An early - warning type transformer protection box 1 and a fire - warning system are installed outside the dry - type transformer 2. The early - warning type transformer protection box 1 includes a multi - functional heat - dissipation mechanism 3 and a fire - extinguishing component 4. The multi - functional heat - dissipation mechanism 3 is slidably connected to both ends of the dry - type transformer 2. The multi - functional heat - dissipation mechanism 3 is used to blow air flow to the dry - type transformer 2. The multi - functional heat - dissipation mechanism 3 includes an air duct 31 and an air - outlet adjusting arc plate 32. There are two groups of air - outlet adjusting arc plates 32. The two groups of air - outlet adjusting arc plates 32 are rotatably connected to the outer end of the air duct 31. The air - outlet adjusting arc plate 32 is used to adjust the size and orientation of the air - outlet of the air duct 31. The fire - extinguishing component 4 is installed at the outer end of the early - warning type transformer protection box 1. The fire - extinguishing component 4 is used to input fire - extinguishing gas into the air duct 31.

[0025] The dry - type transformer 2 includes a transformer connection plate 21, an insulating winding 22, an iron core 23, and a placement seat 24. There are two upper and lower groups of transformer connection plates 21. A wiring terminal 211 is provided on the upper - group transformer connection plate 21. The insulating winding 22 is fixedly connected inside the transformer connection plate 21. The iron core 23 is fixedly connected inside the transformer connection plate 21. The transformer connection plate 21, the insulating winding 22, and the iron core 23 are all installed on the placement seat 24.

[0026] The early - warning type transformer protection box 1 further includes a top cover 11 and a housing 12. An audible and visual alarm 111 is installed on the top cover 11. The audible and visual alarm 111 is used for alarming. The top cover 11 is fixedly connected to the top end of the housing 12. Heat - dissipation slotted grooves 121 are provided at both ends of the housing 12. Gas tank fixing parts 123 are fixedly connected to both ends of the housing 12. The fire - extinguishing component 4 is installed inside the gas tank fixing parts 123. A sensor 122 is installed inside the housing 12. The sensor 122 is used to monitor the temperature of the dry - type transformer 2. There are three upper, middle, and lower groups of sensors 122.

[0027] A displacement member 14 is also provided inside the housing 12. The displacement member 14 includes a first servo motor 141, a long lead screw 142, and a long slide bar 143. The first servo motor 141 is installed on the top cover 11. The long lead screw 142 is rotatably connected to the four corners of the housing 12 and is fixedly connected to the power output end of the first servo motor 141. The long lead screw 142 is used to drive the air duct 31 to move up and down. The long slide bar 143 is installed on both sides of the long lead screw 142.

[0028] The warning type transformer protection box 1 further includes a base 13. The housing 12 is fixedly connected to the top end of the base 13. A fixing groove 132 is opened at one end of the base 13. A clamping block 131 is fixedly connected inside the fixing groove 132. A clamping groove 241 is opened at the bottom end of the placing seat 24. The clamping groove 241 is movably clamped inside the clamping block 131. A detachable fixing plate 133 is installed at the front end of the fixing groove 132. The detachable fixing plate 133 is used to fix the dry-type transformer 2 on the base 13.

[0029] During use, the dry-type transformer 2 is placed by movably clamping it in the fixing groove 132 through the clamping groove 241, and is fixed by the detachable fixing plate 133 and bolts, which is convenient for disassembly and maintenance. In addition, an alarm is issued through the sound and light alarm 111 provided on the top cover 11, and the dry-type transformer 2 is monitored in real time through the sensor 122 on the housing 12. Embodiment 2

[0030] On the basis of Embodiment 1, according to the attached Figures 1-11 as shown, The fire extinguishing assembly 4 includes a fire extinguishing gas tank 41, a gas distribution output member 43, and a connecting long hose 42. The fire extinguishing gas tank 41 is installed in the gas tank fixing member 123. The fire extinguishing gas tank 41 is used to store carbon dioxide gas. The gas distribution output member 43 is installed at the top end of the air duct 31. The gas distribution output member 43 is used to evenly output the fire extinguishing gas into the air duct 31. The gas distribution output member 43 is used to control the switch for the fire extinguishing gas to enter the air duct 31. One end of the connecting long hose 42 is installed at the output end of the fire extinguishing gas tank 41, and the other end of the connecting long hose 42 is installed at the input end of the gas distribution output member 43.

[0031] An air outlet groove 311 is opened at the front end of the air duct 31. The air outlet groove 311 is used to output air flow. Fixed connection blocks 312 are fixedly connected to both ends of the air duct 31. Moving blocks 313 are also fixedly connected to both ends of the air duct 31. The moving blocks 313 are slidably connected inside the displacement member 14. A parallel type cooling fan 314 is installed at the back end of the air duct 31. The parallel type cooling fan 314 is used to output air flow and drive the fire extinguishing gas to be output.

[0032] One end of the air outlet adjusting arc plate 32 is fixedly connected with a driven rotating ring 321, and the other end of the air outlet adjusting arc plate 32 is fixedly connected with a driving rotating ring 322. A second servo motor 323 is arranged outside the driving rotating ring 322. The second servo motor 323 is installed outside the fixedly connected block 312. The driving rotating ring 322 is fixedly connected to the power output end of the second servo motor 323. The driven rotating ring 321 is rotatably connected to another group of second servo motors 323. A limiting ring 324 is fixedly connected to the second servo motor 323, and the limiting ring 324 is used to limit the driven rotating ring 321.

[0033] During use, the air duct 31 is moved up and down by the displacement member 14 for heat dissipation, so that every part of the dry-type transformer 2 can obtain a heat dissipation effect. When a fire breaks out at a certain place, the air duct 31 can be moved to that place to continuously spray fire extinguishing gas at the ignition point. By rotating the upper and lower groups of air outlet adjusting arc plates 32, the size of the air outlet is adjusted. The smaller the opening, the stronger the air flow, and the larger the opening, the larger the coverage area.

[0034] It includes a main system, and the main system includes: Detection module: It is composed of a plurality of sensors 122 arrayed on the housing 12, and is used to monitor the temperature and pressure of multiple points on the surface of the dry-type transformer 2; Control module: It is electrically connected to the sensor 122, and controls the start of the fire extinguishing gas tank 41 and the second servo motor 323 according to the abnormal temperature and pressure data fed back by the sensor 122, so as to adjust the height and angle of the air duct 31 and extinguish fires at different positions; Alarm module: It includes an audible and visual alarm 111 arranged on the top cover 11, which is signal-connected to the control module and is used to give an alarm when the temperature and pressure are abnormal.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire-prevention warning type transformer, comprising a dry-type transformer (2), characterized in that, An early warning type transformer protection box (1) and a fire early warning system are installed outside the dry-type transformer (2). The early warning type transformer protection box (1) includes: A multi-functional heat dissipation mechanism (3). The multi-functional heat dissipation mechanism (3) is slidably connected to both ends of the dry-type transformer (2). The multi-functional heat dissipation mechanism (3) is used to blow air out of the dry-type transformer (2). The multi-functional heat dissipation mechanism (3) includes an air duct (31) and an air outlet adjustment arc plate (32). The air outlet adjustment arc plate (32) is provided with two groups. The two groups of air outlet adjustment arc plates (32) are rotatably connected to the outer end of the air duct (31). The air outlet adjustment arc plate (32) is used to adjust the size and orientation of the air outlet of the air duct (31). A fire extinguishing component (4). The fire extinguishing component (4) is installed at the outer end of the early warning type transformer protection box (1). The fire extinguishing component (4) is used to input fire extinguishing gas into the air duct (31).

2. The warning-type transformer for preventing fire according to claim 1, characterized in that: The dry-type transformer (2) includes: Transformer connection plates (21). There are two upper and lower groups of transformer connection plates (21). Wiring terminals (211) are provided on the upper group of transformer connection plates (21). An insulating winding (22). The insulating winding (22) is fixedly connected inside the transformer connection plate (21). An iron core (23). The iron core (23) is fixedly connected inside the transformer connection plate (21). A placement seat (24). The transformer connection plate (21), the insulating winding (22), and the iron core (23) are all installed on the placement seat (24).

3. The warning type transformer for preventing fire according to claim 2, wherein: The early warning type transformer protection box (1) further includes: A top cover (11). An audible and visual alarm (111) is installed on the top cover (11). The audible and visual alarm (111) is used for alarming. A housing (12). The top cover (11) is fixedly connected to the top end of the housing (12). Heat dissipation slotted grooves (121) are provided at both ends of the housing (12). Gas tank fixing parts (123) are fixedly connected to both ends of the housing (12). The fire extinguishing component (4) is installed inside the gas tank fixing parts (123). A sensor (122) is installed inside the housing (12). The sensor (122) is used to monitor the temperature of the dry-type transformer (2). The sensor (122) is provided with three upper, middle, and lower groups.

4. The early warning type transformer for preventing fire according to claim 3, characterized in that: A displacement member (14) is further provided inside the housing (12). The displacement member (14) includes: A first servo motor (141). The first servo motor (141) is installed on the top cover (11). A long lead screw (142). The long lead screw (142) is rotatably connected to the four corners of the housing (12). The long lead screw (142) is fixedly connected to the power output end of the first servo motor (141). The long lead screw (142) is used to drive the air duct (31) to move up and down. Long sliding rods (143). The long sliding rods (143) are installed on both sides of the long lead screw (142).

5. The warning type transformer for preventing fire according to claim 3, characterized in that: The warning-type transformer protection box (1) further includes a base (13). The housing (12) is fixedly connected to the top of the base (13). One end of the base (13) is provided with a fixing groove (132), and a clamping block (131) is fixedly connected in the fixing groove (132). A clamping groove (241) is opened at the bottom end of the placing seat (24), and the clamping groove (241) is movably clamped in the clamping block (131). A detachable fixing plate (133) is installed at the front end of the fixing groove (132), and the detachable fixing plate (133) is used to fix the dry-type transformer (2) on the base (13).

6. The warning type transformer for preventing fire according to claim 4, wherein: The fire extinguishing assembly (4) includes: A fire extinguishing gas tank (41), which is installed in the gas tank fixing member (123), and the fire extinguishing gas tank (41) is used to store carbon dioxide gas; A gas distribution output member (43), which is installed at the top end of the air duct (31). The gas distribution output member (43) is used to evenly output the fire extinguishing gas into the air duct (31), and the gas distribution output member (43) is used to control the switch of the fire extinguishing gas entering the air duct (31); A connecting long hose (42), one end of the connecting long hose (42) is installed at the output end of the fire extinguishing gas tank (41), and the other end of the connecting long hose (42) is installed at the input end of the gas distribution output member (43).

7. An early warning type transformer for preventing fire according to claim 6, characterized in that: An air outlet groove (311) is opened at the front end of the air duct (31), and the air outlet groove (311) is used to output air flow. Fixed connection blocks (312) are fixedly connected to both ends of the air duct (31), and moving blocks (313) are also fixedly connected to both ends of the air duct (31). The moving blocks (313) are slidably connected in the displacement member (14). A parallel-connected cooling fan (314) is installed at the back end of the air duct (31), and the parallel-connected cooling fan (314) is used to output air flow and drive the fire extinguishing gas to output.

8. An early warning type transformer for preventing fire according to claim 7, characterized in that: One end of the air outlet adjusting arc plate (32) is fixedly connected to a driven rotating ring (321), and the other end of the air outlet adjusting arc plate (32) is fixedly connected to a driving rotating ring (322). A second servo motor (323) is arranged outside the driving rotating ring (322). The second servo motor (323) is installed outside the fixed connection block (312), and the driving rotating ring (322) is fixedly connected to the power output end of the second servo motor (323). The driven rotating ring (321) is rotatably connected to another second servo motor (323), and a limiting ring (324) is fixedly connected to the second servo motor (323). The limiting ring (324) is used to limit the driven rotating ring (321).

9. The warning type transformer for preventing fire according to claim 8, characterized in that: The fire warning system includes: A detection module: It is composed of a plurality of sensors (122) array-mounted on the housing (12), and is used to monitor the temperature and pressure of multiple points on the surface of the dry-type transformer (2); Control module: It is electrically connected to the sensor (122), and controls the activation of the fire extinguishing gas tank (41) and the second servo motor (323) according to the abnormal temperature and pressure data fed back by the sensor (122), so as to adjust the height and angle of the air duct (31) and extinguish fires at different positions; Alarm module: It includes an audible and visual alarm (111) provided on the top cover (11), which is signal-connected to the control module and is used for alarming when the temperature and pressure are abnormal.