Anti-seepage oil-immersed transformer
By designing a rainproof cover and water collection tank system on the oil-immersed transformer, rainwater can be collected and circulated for heat dissipation, solving the problems of rainwater ingress and heat dissipation, improving the waterproof and heat dissipation performance of the equipment, and reducing the risk of failure.
Patent Information
- Application Number
- CN202423217811.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-26
AI Technical Summary
When existing oil-immersed transformers are installed outdoors, poor sealing can easily allow rainwater to enter the transformer through the top, leading to electrical faults and equipment damage, while also resulting in poor heat dissipation.
The system includes a rain cover and a water collection tank. Rainwater is collected in the water collection tank and then circulates outside the transformer through a cooling component to dissipate heat. Impurities are removed through a multi-stage filtration system. The underground temperature is used to lower the water tank temperature. A pumping device is installed to facilitate the removal of impurities.
It effectively prevents rainwater from entering the transformer, improves heat dissipation, reduces equipment failure, reduces the risk of blockage through multi-stage filtration and water pumping equipment, and makes reasonable use of water resources for heat dissipation.
Smart Images
Figure CN223728572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil -immersed transformer technical field, specifically is a kind of water permeation prevention oil -immersed transformer. BACKGROUND
[0002] Oil-immersed transformer is an important equipment widely used in power system, its main feature is to use transformer oil as insulation and cooling medium. Generally installed in outdoor oil-immersed transformer needs to prevent rainwater, because rainwater into transformer interior can cause electrical fault and equipment damage. Top is the part of oil-immersed transformer most likely to enter water, if sealing is not strict, rainwater will enter transformer interior through breather, sleeve etc. top part.
[0003] In order to prevent rainwater from entering, prior art generally installs oil-immersed transformer in box, uses box to prevent rain for oil-immersed transformer, although both sides of box are also provided with heat dissipation holes, but the area of heat dissipation hole is small, so that the ventilation effect of box is poor, which is not conducive to the normal heat dissipation of oil-immersed transformer. UTILITY MODEL CONTENT
[0004] To solve the technical problems in the above background art, the utility model provides a kind of water permeation prevention oil -immersed transformer.
[0005] The utility model technical scheme is as follows:
[0006] A kind of water permeation prevention oil -immersed transformer, including transformer body, the rain cover of being provided along its length direction is equipped in the top of transformer body, water collecting tank is equipped in both sides of rain cover, water collecting tank is communicated with the water collecting tank of one side lower part of transformer body, the lower part of water collecting tank is buried in ground, and first water pumping equipment is arranged in the inside thereof;
[0007] Cooling assembly is communicated in the outer side wall of transformer body, and cooling assembly includes water inlet and water outlet, water inlet is communicated with the water outlet end of first water pumping equipment by water inlet pipe, and water outlet is communicated with the inside of water collecting tank by backflow pipe;
[0008] Filtering assembly is communicated in the lower side of water collecting tank near water collecting tank side, and filtering assembly is communicated with the inside of water collecting tank by downcomer.
[0009] Rain cover is arranged in the top of transformer body, can prevent water for transformer body, and rainwater can be collected and transported to the water collecting tank below by water collecting tank, after rainwater is collected, rainwater can be circulated in the outside of transformer body under the action of cooling assembly, and transformer body is cooled, water resource can be reasonably utilized, the lower part of water collecting tank is buried in ground, in summer, the phenomenon of temperature rise in water tank can be reduced by reducing the influence of high temperature on water collecting tank.
[0010] To avoid the impurities mixed in the rainwater from causing blockage of the first water pumping device and the pipe, the water collecting tank is provided with a plurality of water leakage holes near the side close to the water collecting tank, the water leakage holes are communicated with the filtering assembly, the filtering assembly is provided with a first filter screen, and the aperture of the first filter screen is smaller than the aperture of the water leakage holes.
[0011] The specific structure of the rain cover is that the middle part of the top surface of the rain cover is higher than the upper end surface of the water collecting tank, the water collecting tank is arranged along the length direction of the transformer body, and the vertical spacing of the two water collecting tanks is greater than the maximum width of the transformer body.
[0012] The water collecting tank comprises an upper tank body and a lower tank body which are integrally formed and communicated, the height of the lower tank body is lower than that of the upper tank body, and the width of the lower tank body is greater than that of the upper tank body, so that the contact area of the lower tank body with the underground soil can be increased, the underground temperature is lower than the surface temperature in summer, and the heat dissipation of the rainwater in the lower tank body is facilitated.
[0013] If the temperature of the rainwater in the lower tank body is too high or the rainwater collecting time is too long, the rainwater in the water collecting tank needs to be drained and cleaned, the second water pumping device is arranged in the lower tank body, the water outlet of the second water pumping device is provided with a drain pipe, and the drain pipe extends out of the lower tank body and extends to the side away from the transformer tank body.
[0014] The specific structure of the cooling assembly is that the cooling assembly further comprises a plurality of cooling pipes arranged in the upper and lower directions, the cooling pipes are horizontally arranged in a door type structure, the cooling pipes are connected with the transformer body through connecting pieces, the cooling pipes are provided with first inlets and first outlets, the first inlets of the cooling pipes on the same side are communicated through a first vertical pipe, and the first outlets of the cooling pipes on the same side are communicated through a second vertical pipe.
[0015] To further improve the filtering effect of the rainwater, a second filter screen with a frame is arranged in the upper tank body, the aperture of the second filter screen is smaller than that of the first filter screen, a supporting plate is connected to the inner wall of the upper tank body, the frame is arranged on the supporting plate, a maintenance opening matched with the frame is arranged on one side of the upper tank body, and the second filter screen can be removed and cleaned.
[0016] The beneficial effects of the utility model lie in:
[0017] The rain cover can not only prevent rain for the transformer body, but also collect and transport the rainwater to the water collecting tank below, circulate and transport the rainwater outside the transformer body through the cooling assembly, absorb the heat emitted by the transformer body through the rainwater, and dissipate the heat through the water collecting tank body and the low temperature underground.
[0018] The plurality of water filtering holes and the first filter screen in the water collecting tank can pre-filter the rainwater, the second filter screen can filter the impurities mixed in the rainwater again, and the three-stage filtering can improve the filtering effect of the impurities in the rainwater.
[0019] The second filter screen can be pulled out from the upper box body along the supporting plate through the inspection hole, so that the second filter screen can be easily disassembled and cleaned, the first water pumping device and the second water pumping device are less likely to be blocked and worn by the impurities, and the first water pumping device and the second water pumping device are less likely to fail. BRIEF DESCRIPTION OF DRAWINGS
[0020] In the drawings:
[0021] Figure 1 is a perspective view;
[0022] Figure 2 is a top view;
[0023] Figure 3 is a Figure 2 enlarged structural view of position A in FIG. 1;
[0024] Figure 4 is a right view;
[0025] Figure 5 is a partial structural view;
[0026] Figure 6 is a Figure 5 top view of FIG. 2;
[0027] Figure 7 is a Figure 6 A-A sectional view of FIG. 2;
[0028] Figure 8 is a Figure 7 enlarged structural view of position B in FIG. 2;
[0029] Figure 9 is a structural view of a filter assembly;
[0030] The components represented by the reference numerals in the drawings are as follows:
[0031] 1, transformer body; 2, rain cover; 21, water collecting tank; 211, water leakage hole; 3, water collecting tank; 31, upper box body; 32, lower box body; 4, first water pumping device; 5, second water pumping device; 6, sewer pipe; 7, filter tank; 8, first filter screen; 9, cooling pipe; 10, first vertical pipe; 11, water inlet pipe; 12, second vertical pipe; 13, return pipe; 14, frame; 15, supporting plate; 16, second filter screen; 17, flow-off pipe; 18, inspection hole; 19, drainage pipeline; 20, water supply pipeline. DETAILED DESCRIPTION
[0032] Referring to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , a water-proof oil-immersed transformer includes a transformer body 1, a rain cover 2 is arranged above the transformer body 1 along the length direction of the transformer body 1, water collecting channels 21 are symmetrically arranged on both sides of the rain cover 2, a water collecting tank 3 is arranged on one side of the transformer body 1 and is communicated with the water collecting channels 21, the lower part of the water collecting tank 3 is buried underground, a first water pumping device 4 is arranged in the water collecting tank 3, Figure 4 is a schematic view of the lower part of the water collecting tank 3 buried underground. The middle part of the top surface of the rain cover 2 is higher than the upper end surface of the water collecting channels 21, the water collecting channels 21 are arranged along the length direction of the transformer body 1, and the vertical spacing of the two water collecting channels 21 is greater than the maximum width of the transformer body 1.
[0033] The water collecting tank 3 includes an upper tank body 31 and a lower tank body 32 which are integrally formed and communicated, the height of the lower tank body 32 is lower than the height of the upper tank body 31, and the width of the lower tank body 32 is greater than the width of the upper tank body 31, so that the contact area of the lower tank body 32 with underground soil can be increased, the underground temperature is lower than the surface temperature in summer, and the heat dissipation of the rainwater in the lower tank body 32 is facilitated; in order to facilitate the maintenance and replacement of the first water pumping device 4, the first water pumping device 4 is arranged outside the lower tank body 32.
[0034] Referring to Figure 3 , Figure 4 , Figure 5 and Figure 9 , a filtering assembly is arranged in the lower part of the water collecting channels 21 close to the water collecting tank 3 and is communicated with the inside of the water collecting tank 3 through a downpipe 6. In order to avoid the impurities mixed in the rainwater from causing blockage of the first water pumping device 4 and the downpipe 6 and other pipe fittings, a plurality of water leakage holes 211 are arranged on the side of the water collecting channels 21 close to the water collecting tank 3, the water leakage holes 211 are communicated with the filtering assembly, the filtering assembly includes a filtering tank 7 and a first filtering screen 8 arranged in the filtering tank 7, and the aperture of the first filtering screen 8 is smaller than the aperture of the water leakage holes 211.
[0035] Referring to Figure 7 , Figure 8 and Figure 9 , in order to further improve the filtering effect of the rainwater, a second filtering screen 16 with a frame 14 is arranged in the inside of the upper tank body 31, the aperture of the second filtering screen 16 is smaller than the aperture of the first filtering screen 8, a supporting plate 15 is connected to the inner wall of the upper tank body 31, the frame 14 is arranged on the supporting plate 15, a maintenance opening 18 which is matched with the frame 14 is arranged on one side of the upper tank body 31, so that the second filtering screen 16 can be removed and cleaned, the impurities mixed in the rainwater are filtered again through the second filtering screen 16, and the filtering effect of the impurities in the rainwater can be improved through the three-stage filtering mode.
[0036] The outer wall of the transformer body 1 is provided with a cooling assembly in communication, which comprises a water inlet and a water outlet. The water inlet of the cooling assembly is communicated with the water outlet of the first water pumping device 4 through a water inlet pipe 11. The water inlet of the first water pumping device 4 is communicated with the lower box body 32 through a water supply pipe. The water outlet of the cooling assembly is communicated with the inside of the water collecting tank 3 through a return pipe 13. The specific structure of the cooling assembly is that the cooling assembly further comprises a plurality of cooling pipes 9 arranged in an up-down manner. The cooling pipes 9 are horizontally arranged in a door-shaped structure and are connected with the transformer body 1 through a connecting piece. The cooling pipes 9 have a first inlet and a first outlet. The first inlets of the cooling pipes 9 on the same side are communicated through a first vertical pipe 10. The first outlets of the cooling pipes 9 on the same side are communicated through a second vertical pipe 12. One end of the water inlet pipe 11 is communicated with the first vertical pipe 10, and the other end is communicated with the water outlet of the first water pumping device 4, so as to transport the rainwater in the water collecting tank 3 into the cooling pipes 9. One end of the return pipe 13 is communicated with the second vertical pipe 12, and the other end is communicated with the inside of the water collecting tank 3, so as to return the rainwater in the cooling pipes 9 to the water collecting tank 3.
[0037] The rain cover 2 is arranged directly above the transformer body 1. The rain cover 2 can not only prevent water from entering the transformer body 1, but also can collect and transport rainwater into the water collecting tank 3 below through the water collecting groove 21. After the rainwater is collected, the rainwater can be circulated outside the transformer body 1 under the action of the cooling assembly, so as to play a heat dissipation role on the transformer body 1. The rain cover 2 can reasonably utilize water resources. The lower part of the water collecting tank 3 is buried underground. In summer, the water collecting tank 3 can reduce the influence of high temperature and reduce the phenomenon of temperature rise in the water tank.
[0038] Referring to Figure 7 If the temperature of the rainwater in the lower box body 32 is too high or the rainwater is collected for too long, the rainwater in the water collecting tank 3 needs to be drained and cleaned. The second water pumping device 5 is arranged in the lower box body 32. The water inlet of the second water pumping device 5 is communicated with the inside of the lower box body 32 through a drainage pipe 19, so as to pump out the water in the water collecting tank 3. The water outlet of the second water pumping device 5 is provided with a drain pipe 17. The drain pipe 17 extends to a side away from the transformer tank body through the lower box body. The high-temperature water or waste water in the water tank is discharged to the ground or the ground through the second water pumping device 5, so as to avoid sand deposition or algae in the water collecting tank 3.
Claims
1. A water-impervious oil-immersed transformer comprising a transformer body (1), characterized in that, The transformer body (1) is provided with a rain cover (2) arranged along the length direction of the transformer body (1), and the rain cover (2) is provided with water collecting grooves (21) on both sides. The outer wall of the transformer body (1) is provided with a cooling assembly in communication, and the cooling assembly comprises a water inlet and a water outlet. The water collecting groove (21) is provided with a filtering assembly in communication below the side close to the water collecting tank (3).
2. A water-impregnated transformer according to claim 1, characterized in that The water collecting groove (21) is provided with a plurality of water leakage holes (211) close to the side of the water collecting tank (3), and the water leakage holes (211) are in communication with the filtering assembly.
3. A water-sealed oil-immersed transformer according to claim 1, characterized in that The top surface of the rain cover (2) is higher than the upper end surface of the water collecting groove (21), the water collecting groove (21) is arranged along the length direction of the transformer body (1), and the vertical distance between the two water collecting grooves (21) is greater than the maximum width of the transformer body (1).
4. A water-tight oil immersed transformer as claimed in claim 2, wherein, The water collecting tank (3) comprises an upper tank body (31) and a lower tank body (32) which are integrally formed and in communication.
5. A water-impregnated transformer according to claim 4, characterized in that The lower tank body (32) is provided with a second water pumping device (5), and the water outlet of the second water pumping device (5) is provided with a drain pipe (17) extending out of the lower tank body (32) and away from the transformer tank body.
6. A water-tight oil immersed transformer as claimed in claim 1, wherein, The cooling assembly further comprises a plurality of cooling pipes (9) arranged in an upper and lower manner.
7. A water-impregnated transformer according to claim 4, characterized in that The upper tank body (31) is internally provided with a second filtering screen (16) with a frame (14), the aperture of the second filtering screen (16) is smaller than the aperture of the first filtering screen (8), the inner wall of the upper tank body (31) is connected with a supporting plate (15), the frame (14) is arranged on the supporting plate (15), and the side of the upper tank body (31) is provided with an inspection opening (18) matched with the frame (14).