A new energy oil-immersed transformer based on cooling protection device

Abstract

The present invention relates to the technical field of new energy oil-immersed transformers, specifically a new energy oil-immersed transformer based on a cooling protection device, comprising a transformer housing, a cold air diffusion device is arranged inside the transformer housing, an oil circulation device is arranged inside the transformer housing, and a top temperature detection device is arranged inside the transformer housing. The new energy oil-immersed transformer based on the cooling protection device is provided with an oil circulation device, and the oil pump is responsible for driving the transformer oil to circulate between the cooling device and the transformer body. Through the action of the oil pump, and the oil circulation pipe is connected to the side of the condenser pipe, the transformer oil can continuously dissipate heat through the cooler, thereby realizing effective cooling of the entire transformer body. The flow rate and pressure of the oil pump can be adjusted according to the actual needs of the transformer to ensure the optimization of the cooling effect.

Description

Technical Field

[0001] The invention relates to the technical field of new energy oil-immersed transformers, and in particular to a new energy oil-immersed transformer based on a cooling protection device. Background Art

[0002] Oil-immersed transformers are important equipment in power supply and distribution systems for industrial and mining enterprises and civil buildings and are widely used. Their main function is to convert high voltage (such as 10 kV or 35 kV) into low voltage (such as 230 / 400V) for users. This type of transformer is suitable for AC 50Hz power systems, with a maximum three-phase rated capacity of 2500kVA and is suitable for indoor environments. The operating environment temperature is generally required to be between -25℃ and 40℃.

[0003] The prior art discloses an oil-immersed transformer based on a cooling protection device with a publication number of CN115831543A, comprising a base, an oil tank and an oil pillow, wherein the oil tank is installed in the middle of the upper part of the base, and a mounting seat is fixed on one side of the top of the oil tank. The beneficial effect is that by setting a mounting plate, a through hole and a semiconductor cooling plate, the vent pipe can be connected to the atmosphere through the through hole on the mounting plate, and then the heat generated by the semiconductor cooling plate moves upward to dry the air at the top of the vent pipe, thereby preventing a large amount of moisture in the air from entering the oil pillow through the vent pipe, reducing the cleaning frequency of the staff, and reducing the work intensity of the staff. By setting a mounting plate and an ultrasonic bird repeller, the ultrasonic bird repeller can be fixed on the oil tank through the mounting seat, and the ultrasonic bird repeller can effectively drive away birds using ultrasonic waves to prevent birds from nesting on the oil tank, thereby preventing flammable materials from accumulating on the transformer and avoiding safety hazards.

[0004] By setting the mounting plate and the ultrasonic bird repeller, the ultrasonic bird repeller can be fixed on the oil tank through the mounting base. The ultrasonic bird repeller can effectively drive away birds by using ultrasonic waves. However, the component used in the cooling treatment of the new energy oil-immersed transformer is a single heat dissipation fin, and there is no component that increases the heat dissipation effect by controlling the wind flow direction. The heat dissipation takes a long time and has poor practicality. Therefore, it is very necessary to design a new energy oil-immersed transformer based on a cooling protection device with strong practicality. Summary of the invention

[0005] The object of the present invention is to provide a new energy oil-immersed transformer based on a cooling protection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy oil-immersed transformer based on a cooling protection device, comprising a transformer shell, a cold air diffusion device is arranged inside the transformer shell, an oil circulation flow device is arranged inside the transformer shell, and a top temperature detection device is arranged inside the transformer shell.

[0007] The top temperature detection device includes a top moisture-absorbing sponge block, a limit seat, a placement seat, a fan component, a bottom connecting frame, a bearing component, a rotating shaft, a temperature testing instrument, a connecting bending tube, a placement plate component, a temperature detection head, a connecting ring component, a connecting frame, a connecting thin rod and a negative pressure wind tube. The placement seat is fixedly connected to the inside of the transformer housing near the top, the fan component is fixedly connected to the bottom of the placement seat, the bottom connecting frame is fixedly connected to the bottom of the placement seat, the bearing component is fixedly connected to the bottom of the bottom connecting frame, and the bottom connecting frame is internally arranged A stepper motor is provided, wherein the rotating shaft is fixedly connected to the output shaft of the stepper motor, the rotating shaft is fixedly connected to the inner ring of the bearing, the connecting bending tube is fixedly connected to the side of the temperature testing instrument, the placing plate is fixedly connected to the surface of the connecting bending tube, the temperature detection head is fixedly connected to the bottom of the connecting bending tube, the connecting ring is fixedly connected to the surface of the placing plate, the connecting frame is fixedly connected to the inner ring of the connecting ring, the connecting thin rod is fixedly connected to the side of the connecting frame, and the negative pressure air cylinder is fixedly connected to the bottom of the connecting thin rod.

[0008] Preferably, the oil circulation flow device includes an oil pump, a connecting pipe, an oil circulation pipe and a thermally conductive pad, the oil pump is fixedly connected to the interior of the transformer housing near the back, the connecting pipe is fixedly connected to the side of the oil pump, the oil circulation pipe is fixedly connected to the interior of the transformer housing near the back, the thermally conductive pad is fixedly connected to the back of the oil circulation pipe, and the top of the thermally conductive pad is connected to the back of the placement seat.

[0009] Preferably, the cold air diffusion device includes a front end limit plate, an air vent, a condenser, a condenser, an internal fan, a mounting base and a side end baffle. The mounting base is fixedly connected to the interior of the transformer housing near the front, the front end limit plate is inserted into the interior of the mounting base, the side end baffle is fixedly connected to the back of the mounting base, the air vent is opened in the interior of the side end baffle, the condenser is fixedly connected to the side of the side end baffle, the condenser is fixedly connected to the top of the condenser, and the condenser is connected to the right side of the side end baffle.

[0010] Preferably, the top moisture-absorbing sponge block is fixedly connected to the inside of the limiting seat, and the top moisture-absorbing sponge block is slidably connected to the inside of the transformer housing near the top.

[0011] Preferably, a placement cross block is fixedly connected to the bottom of the rotating shaft, and the temperature testing instrument is fixedly connected to the inside of the placement cross block.

[0012] Preferably, an oil supply tank is fixedly connected to the back of the transformer housing, and the back of the oil circulation pipe passes through the back of the transformer housing and is fixedly connected to the front of the oil supply tank. The oil supply tank can perform oil supply processing and input the oil into the connecting pipe for circulation, thereby achieving effective cooling of the entire transformer body. The flow rate and pressure of the oil pump can be adjusted according to the actual needs of the transformer to ensure the optimization of the cooling effect.

[0013] Preferably, the back side of the side baffle is fixedly connected to a back plate, the internal fan is fixedly connected to the front side of the back plate, and the internal fans are evenly spaced and distributed on the front side of the back plate.

[0014] Preferably, the limiting seat is slidably connected to the inside of the placing seat, and the placing seat is a hollow structure.

[0015] Preferably, the oil circulation pipe is connected to the side of the condenser, and the oil circulation pipe is connected to the side of the condenser, so that the transformer oil can continuously pass through the cooler to dissipate heat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The new energy oil-immersed transformer based on the cooling protection device is provided with a cold air diffusion device. When heat is transferred, the wind generated inside can quickly dissipate heat and cool down. The wind can also transport the cold air of the condenser and the condenser to the center direction of the transformer shell, which can reduce the temperature inside the transformer shell as a whole to achieve the purpose of cooling. The front limit plate is connected to the inside of the mounting base by plugging, which is convenient for maintaining the internal settings and discharging the heat of the internal fan itself when not in use, and then performing secondary processing. The cooling effect is good, and the device is provided with a component that increases the heat dissipation effect by controlling the wind flow direction. The heat dissipation time is short and the practicability is strong.

[0018] 2. The new energy oil-immersed transformer based on the cooling protection device is provided with an oil circulation flow device. The oil pump is responsible for driving the transformer oil to circulate between the cooling device and the transformer body. Because the oil circulation pipe is connected to the side of the shell and the cold air diffusion device, it can play a connecting role. Through the action of the oil pump and the oil circulation pipe connected to the side of the condenser, the transformer oil can continuously dissipate heat through the cooler, thereby realizing effective cooling of the entire transformer body. The flow and pressure of the oil pump can be adjusted according to the actual needs of the transformer to ensure the optimization of the cooling effect.

[0019] 3. The new energy oil-immersed transformer based on the cooling protection device is provided with a top temperature detection device. A placement plate, a temperature detection head and a connecting ring assembly are arranged at the bottom of the connecting bending tube. The negative pressure of the gas can be absorbed by cooperating with the connecting thin rod and the negative pressure wind tube, and the gas is transmitted to the temperature detection head for detection. Then, an alarm is sounded when the set value is reached. A fan component is arranged on the top to absorb the internal air. After cooling, the internal air becomes cold. At this time, the inhaled gas is cold and humid. At this time, the top moisture-absorbing sponge block on the top is needed to absorb moisture to avoid the inner wall being damp and affecting the service life of multiple internal fans and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional front view structure of the present invention;

[0022] Figure 2 It is a three-dimensional bottom-up schematic diagram of the internal structure of the present invention;

[0023] Figure 3 It is a schematic diagram of a partial structure of the top temperature detection device of the present invention;

[0024] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 5 It is a schematic diagram of the overall three-dimensional side view structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0027] Figure 7 It is a three-dimensional front view schematic diagram of the internal structure of the present invention.

[0028] In the figure: 1. transformer housing; 2. cold air diffusion device; 201. front end limit plate; 202. vent; 203. condenser; 204. condenser; 205. internal fan; 206. mounting base; 207. side baffle; 3. oil circulation flow device; 301. oil pump; 302. connecting pipe; 303. oil circulation pipe; 304. thermal pad; 4. top temperature detection device; 401. top moisture absorption sponge block; 402. limit seat; 403. placement seat; 404. fan part; 405. bottom connecting frame; 406. bearing part; 407. rotating shaft; 408. temperature testing instrument; 409. connecting bending pipe; 410. placement plate; 411. temperature detection head; 412. connecting ring; 413. connecting frame; 414. connecting thin rod; 415. negative pressure air duct. DETAILED DESCRIPTION

[0029] The following will be combined with 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 making creative work are within the scope of protection of the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-7 , the present invention provides the following technical solutions:

[0032] A new energy oil-immersed transformer based on a cooling protection device comprises a transformer housing 1, a cold air diffusion device 2 is arranged inside the transformer housing 1, an oil circulation flow device 3 is arranged inside the transformer housing 1, and a top temperature detection device 4 is arranged inside the transformer housing 1.

[0033] The top temperature detection device 4 includes a top moisture-absorbing sponge block 401, a limit seat 402, a placement seat 403, a fan component 404, a bottom connecting frame 405, a bearing component 406, a rotating shaft 407, a temperature testing instrument 408, a connecting bending tube 409, a placement plate component 410, a temperature detection head 411, a connecting ring component 412, a connecting frame 413, a connecting thin rod 414 and a negative pressure wind tube 415. The placement seat 403 is fixedly connected to the inside of the transformer housing 1 near the top, the fan component 404 is fixedly connected to the bottom of the placement seat 403, the bottom connecting frame 405 is fixedly connected to the bottom of the placement seat 403, the bearing component 406 is fixedly connected to the bottom of the bottom connecting frame 405, and a stepping motor is arranged inside the bottom connecting frame 405. The rotating shaft 407 is fixedly connected to the output shaft of the stepping motor, the rotating shaft 407 is fixedly connected to the inner ring of the bearing component 406, and the connecting bending tube 409 is connected to the bottom of the transformer housing 1. The folded tube 409 is fixedly connected to the side of the temperature testing instrument 408, the placement plate 410 is fixedly connected to the surface of the connecting bent tube 409, the temperature detection head 411 is fixedly connected to the bottom of the connecting bent tube 409, the connecting ring 412 is fixedly connected to the surface of the placement plate 410, the connecting frame 413 is fixedly connected to the inner circle of the connecting ring 412, the connecting thin rod 414 is fixedly connected to the side of the connecting frame 413, the negative pressure air cylinder 415 is fixedly connected to the bottom of the connecting thin rod 414, the top moisture-absorbing sponge block 401 is fixedly connected to the inside of the limiting seat 402, the top moisture-absorbing sponge block 401 is slidably connected to the inside of the transformer housing 1 near the top, the bottom of the rotating shaft 407 is fixedly connected with a placement cross block, the temperature testing instrument 408 is fixedly connected to the inside of the placement cross block, the limiting seat 402 is slidably connected to the inside of the placement seat 403, and the placement seat 403 is a hollow structure.

[0034] The oil circulation flow device 3 includes an oil pump 301, a connecting pipe 302, an oil circulation pipe 303 and a heat-conducting pad 304. The oil pump 301 is fixedly connected to the inside of the transformer housing 1 near the back, the connecting pipe 302 is fixedly connected to the side of the oil pump 301, the oil circulation pipe 303 is fixedly connected to the inside of the transformer housing 1 near the back, the heat-conducting pad 304 is fixedly connected to the back of the oil circulation pipe 303, the top of the heat-conducting pad 304 is connected to the back of the placement seat 403, and the oil circulation pipe 303 is connected to the side of the condenser 203. The oil circulation pipe 303 is connected to the side of the condenser 203, and the transformer oil can continuously dissipate heat through the cooler. The back of the transformer housing 1 is fixedly connected to an oil supply tank. The back of the oil circulation pipe 303 passes through the back of the transformer housing 1 and is fixedly connected to the front of the oil supply tank. The oil supply tank can perform oil supply processing and inject oil into the connecting pipe 302. It can circulate, thereby achieving effective cooling of the entire transformer body. The flow and pressure of the oil pump can be adjusted according to the actual needs of the transformer to ensure the optimization of the cooling effect.

[0035] The cold air diffusion device 2 includes a front end limit plate 201, an air vent 202, a condenser 203, a condenser 204, an internal fan 205, a mounting base 206 and a side end baffle 207. The mounting base 206 is fixedly connected to the interior of the transformer housing 1 near the front, the front end limit plate 201 is plugged into the interior of the mounting base 206, the side end baffle 207 is fixedly connected to the back of the mounting base 206, the air vent 202 is opened in the interior of the side end baffle 207, the condenser 204 is fixedly connected to the side of the side end baffle 207, the condenser 203 is fixedly connected to the top of the condenser 204, the condenser 203 is connected to the right side of the side end baffle 207, the back of the side end baffle 207 is fixedly connected with a placement back plate, the internal fan 205 is fixedly connected to the front of the placement back plate, and the internal fans 205 are evenly spaced and distributed on the front of the placement back plate.

[0036] When in use, the cold air diffusion device 2 provided inside can be used for the first step of cooling treatment, and the condenser 204 below can be started to cooperate with the condensing tube 203 for water circulation treatment. The water drives the heat transfer during the flow process, and the internal fan 205 provided inside is used for treatment during the transfer process. The side baffles 207 and the front end limiting plate 201 can form a closed shell to ensure that the wind can only be sent out through the air vents 202 inside the side baffles 207 on both sides, and the air vents 202 are aligned with the condensing tube 203. Therefore, when the heat is transferred, the wind force generated inside can quickly dissipate the heat and cool it, and the wind force can also cool the condensing tube 203 and the condenser 204. The air is transported toward the center of the transformer housing 1, which can reduce the temperature inside the transformer housing 1 as a whole to achieve the purpose of cooling. The front end limit plate 201 is connected to the inside of the mounting base 206 by plugging, which is convenient for maintaining the internal settings and discharging the heat of the internal fan 205 itself when not in use, and then performing secondary treatment, with good cooling effect. An oil circulation flow device 3 is provided inside the transformer housing 1, and the oil pump 301 is responsible for driving the transformer oil to circulate between the cooling device and the transformer body. Because the oil circulation pipe 303 is connected to the side of the housing and the cold air diffusion device 2, it can play a connecting role, through the action of the oil pump 301, and the oil circulation pipe 303 is connected to the condenser On the side of 203, the transformer oil can continuously dissipate heat through the cooler, thereby achieving effective cooling of the entire transformer body. The flow and pressure of the oil pump can be adjusted according to the actual needs of the transformer to ensure the optimization of the cooling effect, and a top temperature detection device 4 is arranged inside the transformer housing 1. The top temperature detection device 4 can detect the temperature and issue an alarm. After the temperature reaches a preset value, the alarm is issued, and the internal cold air diffusion device 2 and the oil circulation device 3 are started to start cooling. The cold air diffusion device 2 and the oil circulation device 3 do not need to be started all the time, which will cause energy waste. When in use, the internal stepping motor can be started to drive the rotating shaft 40 7 rotates, and when it rotates, it can generate very small wind force, slightly speeding up the air flow rate, which is convenient for detection. Then, a placement plate 410, a temperature detection head 411 and a connecting ring 412 assembly are arranged at the bottom of the connecting bending tube 409, and the negative pressure suction of the gas can be carried out in conjunction with the connecting thin rod 414 and the negative pressure wind tube 415, and the negative pressure of the gas is transmitted to the temperature detection head 411 for detection, and then an alarm is issued when the set value is reached, and a fan component 404 is arranged on the top, which can absorb the internal air, and the internal air becomes cold after cooling. At this time, the inhaled gas is cold and humid gas, and the top moisture-absorbing sponge block 401 on the top is needed to absorb moisture to avoid the inner wall being wet and affecting the service life of multiple internal fans and other components.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] 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 new energy oil-immersed transformer based on a cooling protection device, comprising a transformer housing (1), characterized in that: A cold air diffusion device (2) is provided inside the transformer housing (1), an oil circulation device (3) is provided inside the transformer housing (1), and a top temperature detection device (4) is provided inside the transformer housing (1); The top temperature detection device (4) comprises a top moisture-absorbing sponge block (401), a limiting seat (402), a placement seat (403), a fan component (404), a bottom connecting frame (405), a bearing component (406), a rotating shaft (407), a temperature testing instrument (408), a connecting bending tube (409), a placement plate component (410), a temperature detection head (411), a connecting ring component (412), a connecting frame (413), a connecting thin rod (414) and a negative pressure wind tube (415), wherein the placement seat (403) is fixedly connected to the inside of the transformer housing (1) near the top, the fan component (404) is fixedly connected to the bottom of the placement seat (403), the bottom connecting frame (405) is fixedly connected to the bottom of the placement seat (403), and the bearing component (406) is fixedly connected to the bottom of the bottom connecting frame (405). , a stepper motor is arranged inside the bottom connecting frame (405), the rotating shaft (407) is fixedly connected to the output shaft of the stepper motor, the rotating shaft (407) is fixedly connected to the inner ring of the bearing member (406), the connecting bending tube (409) is fixedly connected to the side of the temperature testing instrument (408), the placement plate (410) is fixedly connected to the surface of the connecting bending tube (409), the temperature detection head (411) is fixedly connected to the bottom of the connecting bending tube (409), the connecting ring member (412) is fixedly connected to the surface of the placement plate member (410), the connecting frame (413) is fixedly connected to the inner ring of the connecting ring member (412), the connecting thin rod (414) is fixedly connected to the side of the connecting frame (413), and the negative pressure air cylinder (415) is fixedly connected to the bottom of the connecting thin rod (414); The top moisture absorbing sponge block (401) is fixedly connected to the inside of the limiting seat (402), and the top moisture absorbing sponge block (401) is slidably connected to the inside of the transformer housing (1) near the top; A placement cross block is fixedly connected to the bottom of the rotating shaft (407), and the temperature testing instrument (408) is fixedly connected to the inside of the placement cross block; The limiting seat (402) is slidably connected to the interior of the placement seat (403), and the placement seat (403) is a hollow structure.

2. A new energy oil-immersed transformer based on a cooling protection device according to claim 1, characterized in that: The oil circulation device (3) comprises an oil pump (301), a connecting pipe (302), an oil circulation pipe (303) and a heat-conducting pad (304); the oil pump (301) is fixedly connected to the inside of the transformer housing (1) near the back, the connecting pipe (302) is fixedly connected to the side of the oil pump (301), the oil circulation pipe (303) is fixedly connected to the inside of the transformer housing (1) near the back, the heat-conducting pad (304) is fixedly connected to the back of the oil circulation pipe (303), and the top of the heat-conducting pad (304) is connected to the back of the placement seat (403).

3. A new energy oil-immersed transformer based on a cooling protection device according to claim 2, characterized in that: The cold air diffusion device (2) comprises a front end limiting plate (201), an air vent (202), a condensing tube (203), a condenser (204), an internal fan (205), a mounting base (206) and a side end baffle (207); the mounting base (206) is fixedly connected to the inside of the transformer housing (1) near the front, the front end limiting plate (201) is plugged into the inside of the mounting base (206), the side end baffle (207) is fixedly connected to the back of the mounting base (206), the air vent (202) is opened in the inside of the side end baffle (207), the condenser (204) is fixedly connected to the side of the side end baffle (207), the condensing tube (203) is fixedly connected to the top of the condenser (204), and the condensing tube (203) is connected to the right side of the side end baffle (207).

4. A new energy oil-immersed transformer based on a cooling protection device according to claim 3, characterized in that: The back of the transformer housing (1) is fixedly connected to an oil supply tank, and the back of the oil circulation pipe (303) passes through the back of the transformer housing (1) and is fixedly connected to the front of the oil supply tank.

5. A new energy oil-immersed transformer based on a cooling protection device according to claim 4, characterized in that: The back side of the side end baffle (207) is fixedly connected to a placement back plate, the internal fans (205) are fixedly connected to the front side of the placement back plate, and the internal fans (205) are evenly spaced and distributed on the front side of the placement back plate.

6. A new energy oil-immersed transformer based on a cooling protection device according to claim 5, characterized in that: The oil circulation pipe (303) is connected to the side of the condenser pipe (203).

Images