35kv step-up transformer with protection structure

Abstract

The application discloses a 35kV step-up transformer with a protection structure, which comprises a box body and multiple groups of heat dissipation fins installed on the front face and the back face of the box body, the front face and the back face of the box body are provided with protection mechanisms, the protection mechanism comprises a protection frame, multiple groups of square tube bodies are fixedly arranged on the protection frame, and multiple groups of protection rods are fixedly arranged on the outer side of the square tube bodies; the protection mechanism is designed, the protection frame, the square tube bodies and the protection rods arranged outside the heat dissipation fins are used for blocking and protecting the step-up transformer during installation or transportation and movement, the probability that the heat dissipation fins are directly in contact with external objects and are deformed and damaged is reduced, the rubber buffer sleeves arranged outside the protection rods and the rubber buffer strips arranged on the surfaces of the protection frame, the square tube bodies and the protection rods can play a buffering effect when contacting objects, the objects, the protection frame, the square tube bodies and the protection rods are protected, and the protection effect is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of step-up transformers, and particularly relates to a 35kV step-up transformer with a protection structure. BACKGROUND

[0002] The 35kV step-up transformer is a device for increasing alternating voltage and is a voltage conversion device for a 35KV high-voltage transmission line. The 35kV step-up transformer is used in a wind power plant or a solar power plant. The 35kV step-up transformer is used to increase the low-voltage current output by a solar panel or a wind power plant to 35kV to meet the demand of the high-voltage transmission line.

[0003] A step-up transformer is disclosed in Chinese Patent Application No. 201920506235.6. The patent facilitates daily maintenance or emergency operation by directly stopping power in the transformer room through a high-voltage load switch. When a voltage fault occurs, the fuse in the middle of the load switch is directly fused, so that the overvoltage on the line does not impact the transformer. However, when heat is generated inside during operation, the heat is dissipated through the multiple heat dissipation fins arranged on the outside. The heat dissipation fins located on the outside are prone to deformation, collapse or damage due to contact with other external objects during installation or transportation and movement. The collapsed heat dissipation fins fill the original gaps between the heat dissipation fins, which directly leads to a significant decrease in heat dissipation capacity, thereby causing a series of potential faults and affecting the subsequent use stability of the step-up transformer. Moreover, the natural heat dissipation through the heat dissipation fins has poor heat dissipation effect, which may cause the temperature to be too high, thereby reducing the performance of the internal insulation material and affecting the performance and service life of the step-up transformer. Therefore, we propose a 35kV step-up transformer with a protection structure. SUMMARY

[0004] The purpose of the present application is to provide a 35kV step-up transformer with a protection structure to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a 35kV step-up transformer with a protection structure, comprising a box body and multiple groups of heat dissipation fins installed on the front and back of the box body, the front and back of the box body are provided with a protection mechanism, the protection mechanism comprises a protection frame, multiple groups of square tube bodies are fixedly arranged on the protection frame, multiple groups of protection rods are fixedly arranged on the outer side of the square tube bodies, a rubber buffer sleeve is fixedly sleeved on the outside of the protection rod, a rubber buffer strip is fixedly arranged on the surface of the protection frame and the square tube body, and four groups of buffer assemblies are arranged between the protection frame and the box body.

[0006] The buffer assembly comprises a meander-shaped plate, the inside of the meander-shaped plate is slidably provided with a moving long block, the top and bottom of the meander-shaped plate are fixedly provided with first plates, the top and bottom of the moving long block are fixedly provided with second plates, and the second plates are fixedly provided with connecting springs between the first plates.

[0007] Preferably, the side surface of the meander-shaped plate is fixedly provided with an L-shaped block, the end of the L-shaped block is fixedly provided with a fixed block, the fixed block is fixedly connected with the box through two groups of mounting bolts, one end of the moving long block is fixedly provided with a baffle, and the other end of the moving long block is fixedly connected with the protective frame.

[0008] Preferably, the box is provided with a spraying cooling member for cooling the heat dissipation fins, the spraying cooling member comprises a water chiller and two groups of fixed pipes, one end of the fixed pipe penetrates through the inside of the protective frame and the square pipe body, the surface of the square pipe body is uniformly provided with a plurality of groups of water spraying heads along the length direction of the square pipe body, and the water spraying heads, the square pipe body and the fixed pipe are communicated.

[0009] Preferably, the two groups of fixed pipes are fixedly provided with a connecting hose therebetween, and the end of the fixed pipe is fixedly provided with an inclined hose between the water chiller.

[0010] Preferably, the water chiller is fixedly provided with a Y-shaped pipe, the Y-shaped pipe comprises a horizontal pipe body and a water supply pipe and a return pipe mounted at the end of the horizontal pipe body, the return pipe and the water supply pipe are provided with valves, one side of the box is fixedly provided with a supporting plate, and the water chiller is fixed on the top of the supporting plate.

[0011] Preferably, the bottom outer side of the box is provided with a collecting member for collecting the cooling water sprayed by the water spraying heads, the collecting member comprises two groups of collecting grooves and a communicating groove, the collecting grooves are fixed on the front and back of the bottom of the box, the communicating groove is fixed on the other side of the box, and the collecting grooves and the communicating groove are communicated.

[0012] Preferably, the bottom of the collecting groove is fixedly provided with an extension plate, the extension plate is fixedly provided with a water pump, the water pump is fixedly provided with a conveying pipe, and the end of the conveying pipe is fixedly connected with the return pipe.

[0013] Preferably, the bottom of the box is fixedly provided with two groups of mounting racks, and the top of the box is fixedly provided with a top plate.

[0014] Preferably, the top of the top plate is fixedly provided with a plurality of groups of low-voltage outgoing line ends and a plurality of groups of high-voltage outgoing line ends, respectively, the top of the top plate is further fixedly provided with an inclined rack, and the top of the inclined rack is fixedly provided with an oil pillow.

[0015] Compared with the prior art, the present application has the beneficial effects that:

[0016] (1) The protective mechanism of the present application can reduce the probability of deformation and damage of the heat dissipation fins caused by direct contact with external objects during installation or transportation of the step-up transformer by blocking the heat dissipation fins with the protective frame, square tube body and protective rod arranged outside the heat dissipation fins. Moreover, the rubber buffer sleeve arranged outside the protective rod and the rubber buffer strips arranged on the surface of the protective frame and square tube body can provide a buffering effect when contacting objects, thereby protecting the objects and the protective frame, square tube body and protective rod, and improving the protection effect.

[0017] (2) The spray cooling piece of the present application can assist in heat dissipation of the heat dissipation fins by spraying cooling water from the water spray head during use, so that the heat dissipation fins can quickly dissipate heat, improving the heat dissipation effect of the heat dissipation fins and the stability of the step-up transformer during use.

[0018] (3) The collection piece of the present application can collect the cooling water flowing down the surface of the heat dissipation fins and the box body into the collection groove below during the process of the water spray head spraying cooling water to the heat dissipation fins for heat dissipation, and then the cooling water can be circulated by the action of the water pump through the Y-shaped pipe into the water chiller, avoiding the direct flow of cooling water to the ground and wasting water resources. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the present application;

[0020] Figure 2 is a right view structural schematic view of the present application;

[0021] Figure 3 is a structural schematic view of the protective mechanism of the present application;

[0022] Figure 4 is a left view structural schematic view of the protective mechanism of the present application;

[0023] Figure 5 is a structural schematic view of the protective frame and protective rod of the present application;

[0024] Figure 6 is a structural schematic view of the buffer assembly of the present application;

[0025] Figure 7 is a structural schematic view of the collection piece of the present application;

[0026] Figure 8 is a right view structural schematic view of the box body of the present application;

[0027] In the figure: 100, box; 101, oil pillow; 102, top plate; 103, heat dissipation fin; 104, low-voltage outgoing line end; 105, high-voltage outgoing line end; 200, protective frame; 201, L-shaped block; 202, rubber buffer sleeve; 203, protective rod; 204, fixed block; 205, square tube body; 206, rubber buffer strip; 207, baffle; 208, backplate; 209, moving long block; 210, first plate; 211, connecting spring; 212, second plate; 300, collection groove; 301, communication groove; 302, water pump; 303, conveying pipe; 400, inclined hose; 401, support plate; 402, water chiller; 403, connecting hose; 404, fixed pipe; 406, Y-shaped pipe; 407, water spraying head; 408, valve; 409, water supply pipe; 410, return water pipe; 411, cross pipe body. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0029] Embodiment 1

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8The application provides a technical scheme: a 35kV step-up transformer with a protection structure, which comprises a box body 100 and a plurality of groups of heat dissipation fins 103 installed on the front face and the back face of the box body 100, heat generated by the box body 100 during operation can be dissipated through the heat dissipation fins 103, the front face and the back face of the box body 100 are provided with protection mechanisms, the protection mechanism comprises a protection frame 200, a plurality of groups of square tube bodies 205 are fixedly arranged on the protection frame 200, a plurality of groups of protection rods 203 are fixedly arranged on the outer side of the square tube bodies 205, the protection frame 200, the square tube bodies 205 and the protection rods 203 can protect the heat dissipation fins 103, a rubber buffer sleeve 202 is fixedly sleeved on the outer side of the protection rod 203, the rubber buffer sleeve 202 can buffer the protection rod 203, reduce deformation and damage of the protection rod 203 caused by the protection rod 203 colliding with an object, rubber buffer strips 206 are fixedly arranged on the surfaces of the protection frame 200 and the square tube bodies 205, the rubber buffer strips 206 can buffer the protection frame 200 and the square tube bodies 205, reduce deformation and damage of the protection frame 200 and the square tube bodies 205 caused by the protection frame 200 and the square tube bodies 205 colliding with an external object, and four groups of buffer assemblies are arranged between the protection frame 200 and the box body 100.

[0031] The buffer assembly comprises a meandering plate 208, a moving long block 209 is slidably arranged in the meandering plate 208, first plates 210 are fixedly arranged at the top and the bottom of the meandering plate 208, second plates 212 are fixedly arranged at the top and the bottom of the moving long block 209, the distance between the second plates 212 and the first plates 210 is smaller than the distance between the protection frame 200 and the heat dissipation fins 103, when the protection frame 200 moves, the moving long block 209 and the second plates 212 on the moving long block 209 are driven to move, the second plates 212 can limit the movement, the surface of the protection frame 200 and the heat dissipation fins 103 are prevented from being in contact through the blocking of the connecting springs 211 and the first plates 210, connecting springs 211 are fixedly arranged between the second plates 212 and the first plates 210, the protection frame 200 can be buffered through the stretching and contracting of the connecting springs 211, the protection effect of the protection frame 200, the protection rods 203 and the square tube bodies 205 is improved, and the service life of the object, the protection frame 200, the protection rods 203 and the square tube bodies 205 is prolonged.

[0032] L-shaped blocks 201 are fixedly arranged on the side surfaces of the meandering plate 208, fixed blocks 204 are fixedly arranged at the ends of the L-shaped blocks 201, the fixed blocks 204 are fixedly connected with the box body 100 through two groups of mounting bolts, the fixed blocks 204 can be disassembled through the mounting bolts, and then the protection mechanism can be disassembled according to needs, one end of the moving long block 209 is fixedly provided with a baffle 207, and the other end of the moving long block 209 is fixedly connected with the protection frame 200.

[0033] The application can reduce the probability of deformation and damage of the heat dissipation fins 103 caused by direct contact with external objects during installation or transportation by setting the protective frame 200, square tube body 205 and protective rod 203 outside the heat dissipation fins 103, and the rubber buffer sleeve 202 outside the protective rod 203 and the rubber buffer strip 206 on the surface of the protective frame 200 and square tube body 205 can play a buffering effect when contacting the object, thereby protecting the object and the protective frame 200, square tube body 205 and protective rod 203, and improving the protection effect.

[0034] In use, when the protective mechanism protects the heat dissipation fins 103 during installation or transportation, the protective rod 203, protective frame 200 and square tube body 205 in the protective mechanism contact the external object to block and protect, and the rubber buffer sleeve 202 outside the protective rod 203 and the rubber buffer strip 206 on the surface of the protective frame 200 and square tube body 205 can play a buffering effect when contacting the object, thereby reducing damage to the object, protective rod 203, protective frame 200 and square tube body 205, when the components on the protective mechanism contact the object, the connecting spring 211 is compressed and reset to play a buffering effect, and the moving block 209 slides in the backplate 208 at this time, and the two groups of mounting bolts on the fixed block 204 can be disassembled to disassemble and assemble the buffering mechanism.

[0035] Embodiment 2

[0036] Based on embodiment 1, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The box body 100 is provided with a spray cooling piece for cooling the heat dissipation fins 103, the spray cooling piece includes a cold water machine 402 and two groups of fixed pipes 404, the cold water machine 402 can cool the water to spray the cooling water on the heat dissipation fins 103 to cool them, one end of the fixed pipe 404 penetrates the inside of the protective frame 200 and square tube body 205, and the surface of the square tube body 205 is uniformly provided with a plurality of water spray heads 407 along the length direction of the square tube body 205, the water spray heads 407 can spray the cooling water in the square tube body 205 to the surface of the heat dissipation fins 103 to complete the cooling and heat dissipation, and the water spray heads 407, square tube body 205 and fixed pipes 404 are connected;

[0037] The connecting hose 403 is fixed between the two groups of fixed pipes 404, and the two groups of fixed pipes 404 can move along with the buffer assembly in the protection mechanism under the action of the connecting hose 403 and the inclined hose 400.

[0038] The Y-shaped pipe 406 is fixed on the cold water machine 402, and the water supplied in the cold water machine 402 and the water sprayed by the water spraying head 407 can be collected and merged into the cold water machine 402 through the Y-shaped pipe 406, so as to reduce the waste of water resources and increase the utilization rate of collected water. The Y-shaped pipe 406 includes a horizontal pipe body 411, a water supply pipe 409 and a return water pipe 410 installed at the end of the horizontal pipe body 411. The return water pipe 410 and the water supply pipe 409 are provided with valves 408. The size of the valve 408 can adjust the size of the water transported by the pipe connected to the water supply pipe 409 in the Y-shaped pipe 406 and the size of the collected water transported into the cold water machine 402. The support plate 401 is fixed on one side of the box body 100, and the cold water machine 402 is fixed on the top of the support plate 401.

[0039] The spraying cooling part is designed, and in use, the water spraying head 407 can spray cooling water on the heat dissipation fins 103 to assist heat dissipation, so that the heat dissipation fins 103 can quickly dissipate heat, the heat dissipation effect of the heat dissipation fins 103 is improved, and the stability of the step-up transformer in use is improved.

[0040] In use, the pipe for supplying cooling water to the cold water machine 402 is connected to the end of the water supply pipe 409 in the Y-shaped pipe 406, and then the cold water machine 402 is started. The cold water machine 402 cools the water and then transports the water to the fixed pipe 404 located in the front of the box body 100 through the inclined hose 400. Then the cooling water in the fixed pipe 404 located in the front of the box body 100 is transported to the fixed pipe 404 located in the back of the box body 100 through the connecting hose 403, and then the cooling water is transported to the water spraying head 407 through the square pipe body 205. At this time, the water spraying head 407 sprays cooling water on the heat dissipation fins 103 to assist heat dissipation of the heat dissipation fins 103, and the heat dissipation effect of the heat dissipation fins 103 is increased.

[0041] Example 3

[0042] Based on example 2, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8The bottom outer side of the box body 100 is provided with a collecting piece for collecting the cooling water sprayed by the water spraying head 407, the collecting piece comprises two groups of collecting grooves 300 and a connecting groove 301, the collecting grooves 300 can collect the water flowing down or dripping down, the connecting groove 301 can connect the two groups of collecting grooves 300, the collecting grooves 300 are fixed on the front and back of the bottom of the box body 100, and the connecting groove 301 is fixed on the other side of the box body 100, and the collecting grooves 300 and the connecting groove 301 are connected;

[0043] The bottom of the collecting groove 300 is fixedly provided with an extension plate, and the water pump 302 is fixedly arranged on the extension plate, so that the pressure of the collected water delivered into the water cooler 402 can be increased through the water pump 302, the water pump 302 is fixedly provided with the delivery pipe 303, and the end of the delivery pipe 303 is fixedly connected with the water return pipe 410.

[0044] The collecting piece is designed, the cooling water sprayed by the water spraying head 407 to the heat dissipation fins 103 flows down along the surface of the heat dissipation fins 103 and the box body 100 to the collecting grooves 300 below during the heat dissipation process, and then flows into the water cooler 402 through the Y-shaped pipe 406 under the action of the water pump 302 to complete the circulation, so that the waste of the cooling water flowing to the ground is avoided, and the water resource is saved.

[0045] In use, the cooling water sprayed by the water spraying head 407 to the heat dissipation fins 103 flows down to the collecting grooves 300 below after being sprayed to the front and back of the box body 100, at this time, the cooling water in the collecting grooves 300 on the front of the box body 100 flows into the collecting grooves 300 on the back of the box body 100 through the connecting groove 301, at this time, the cooling water in the collecting grooves 300 on the back of the box body 100 flows into the water cooler 402 through the Y-shaped pipe 406 after being pressurized by the water pump 302, so that the amount of water delivered into the water cooler 402 through the water supply pipe 409 can be reduced, the utilization rate of water can be increased, and the waste can be reduced.

[0046] In the embodiment, the bottom of the box body 100 is fixedly provided with two groups of mounting frames, the mounting frames on the bottom can facilitate mounting the step-up transformer to the specified position for use, and the top of the box body 100 is fixedly provided with the top plate 102.

[0047] In the embodiment, the top of the top plate 102 is respectively fixedly provided with a plurality of groups of low-voltage outgoing line ends 104 and a plurality of groups of high-voltage outgoing line ends 105. The low-voltage outgoing line ends 104 can be connected with power generation fields or solar panels. The high-voltage outgoing line ends 105 are connected with 35KV lines. The top of the top plate 102 is also fixedly provided with an inclined rack. The top of the inclined rack is fixedly provided with an oil pillow 101. The oil pillow 101 is a cylindrical container and is horizontally placed above the box body 100. The oil pillow 101 is connected with the box body 100 of the step-up transformer through a pipeline. When the oil of the step-up transformer expands due to heat, the oil flows from the box body 100 to the oil pillow 101. When the oil in the box body 100 of the step-up transformer contracts due to cold, the oil flows from the oil pillow 101 to the box body 100.

[0048] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A 35kV step-up transformer with protective structure, comprising a box (100) and a plurality of sets of heat dissipation fins (103) installed on the front and back of the box (100), characterized in that: The front and back of the box (100) are provided with protection mechanisms, the protection mechanism comprises a protection frame (200), a plurality of square tube bodies (205) are fixedly arranged on the protection frame (200), a plurality of protection rods (203) are fixedly arranged on the outer side of the square tube body (205), a rubber buffer sleeve (202) is fixedly sleeved on the outer side of the protection rod (203), the surface of the protection frame (200) and the square tube body (205) is fixedly provided with a rubber buffer strip (206), and four buffer assemblies are arranged between the protection frame (200) and the box (100). The buffer assembly comprises a meandering plate (208), a moving long block (209) is slidably arranged in the meandering plate (208), first plates (210) are fixedly arranged at the top and bottom of the meandering plate (208), second plates (212) are fixedly arranged at the top and bottom of the moving long block (209), and connecting springs (211) are fixedly arranged between the second plates (212) and the first plates (210). L-shaped blocks (201) are fixedly arranged on the side surface of the meandering plate (208), fixed blocks (204) are fixedly arranged at the end of the L-shaped block (201), the fixed blocks (204) and the box (100) are fixedly connected through two groups of mounting bolts, one end of the moving long block (209) is fixedly provided with a baffle (207), and the other end of the moving long block (209) is fixedly connected with the protection frame (200). The box (100) is provided with a spraying cooling piece for cooling the heat dissipation fins (103), the spraying cooling piece comprises a cold water machine (402) and two groups of fixed pipes (404), one end of the fixed pipe (404) penetrates through the inside of the protection frame (200) and the square tube body (205), a plurality of water spraying heads (407) are uniformly arranged on the surface of the square tube body (205) and along the length direction of the square tube body (205), and the water spraying head (407), the square tube body (205) and the fixed pipe (404) are communicated.

2. A 35 kV step-up transformer with a protective structure according to claim 1, characterized in that: Two groups of the fixed pipes (404) are fixedly provided with a connecting hose (403), and the end of the fixed pipe (404) and the cold water machine (402) are fixedly provided with an inclined hose (400).

3. A 35 kV step-up transformer with a protective structure according to claim 2, characterized in that: The cold water machine (402) is fixedly provided with a Y-shaped pipe (406), the Y-shaped pipe (406) comprises a horizontal pipe body (411), a water supply pipe (409) and a return pipe (410) mounted at the end of the horizontal pipe body (411), valves (408) are arranged on the return pipe (410) and the water supply pipe (409), a supporting plate (401) is fixedly arranged on one side of the box (100), and the cold water machine (402) is fixedly arranged on the top of the supporting plate (401).

4. A 35 kV step-up transformer with a protective structure according to claim 3, characterized in that: The bottom outer side of the box (100) is provided with a collecting piece for collecting the cooling water sprayed by the water spraying head (407), which comprises two groups of collecting grooves (300) and a connecting groove (301), the collecting grooves (300) are fixed on the front and back of the bottom of the box (100), the connecting groove (301) is fixed on the other side of the box (100), and the collecting grooves (300) and the connecting groove (301) are connected.

5. A 35 kV step-up transformer with a protective structure according to claim 4, characterized in that: The bottom of the collecting groove (300) is fixedly provided with an extension plate, the extension plate is fixedly provided with a water pump (302), the water pump (302) is fixedly provided with a conveying pipe (303), and the end of the conveying pipe (303) is fixedly connected with the water return pipe (410).

6. A 35 kV step-up transformer with a protective structure according to claim 1, characterized in that: The bottom of the box (100) is fixedly provided with two groups of mounting racks, and the top of the box (100) is fixedly provided with a top plate (102).

7. A 35 kV step-up transformer with a protective structure according to claim 6, characterized in that: The top of the top plate (102) is fixedly provided with a plurality of low-voltage outgoing line ends (104) and a plurality of high-voltage outgoing line ends (105), respectively, and the top of the top plate (102) is also fixedly provided with an inclined rack, and the top of the inclined rack is fixedly provided with an oil pillow (101).

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