Oil filter of transformer oil tank

Abstract

The utility model provides an oil filter of a transformer oil tank, which comprises an oil tank assembly, condenser pipes fixedly connected to the surfaces of two ends of a tank body, an oil conservator assembly arranged at the top of the tank body, a filter assembly arranged at the bottom of the oil conservator assembly and comprising a filter tank fixedly connected to the bottom of the oil conservator assembly, the filter plate is fixedly installed in the filter box, the partition plate is fixedly installed in the filter box, the oil conveying assembly is arranged at the bottom of the filter box, the first anti-backflow assembly is arranged in the oil conveying assembly, the oil outlet assembly is arranged at the bottom of the filter box, and the second anti-backflow assembly is arranged in the oil outlet assembly. According to the oil filter of the transformer oil tank, the filtering assembly is arranged at the bottom of the oil conservator assembly, inlet and outlet oil can be filtered, meanwhile, the first anti-backflow assembly and the second anti-backflow assembly are arranged in the oil conveying assembly and the oil outlet assembly respectively, and therefore backflow of oil is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer design, in particular to an oil filter of a transformer oil tank. Background Art

[0002] The transformer oil pillow is installed on the transformer's oil tank (corrugated oil tank). There is also a pipe sealed with "glass", called an "explosion-proof pipe". This is to prevent the oil temperature from rising rapidly and the volume from expanding rapidly when the transformer fails. When the oil pillow can no longer contain the oil, the oil flow will squeeze the glass and rush out of the explosion-proof pipe, protecting the transformer from major damage.

[0003] When there is a lack of oil in the oil tank, the oil in the oil pillow will flow down through the pipeline and replenish the oil tank to keep it full of oil. At the same time, when the transformer load increases, the oil temperature rises, the transformer oil expands, and the oil tank can no longer hold the oil, the oil will also flow up through the pipeline and flow back into the oil pillow. However, due to the long-term inflow and outflow of oil, there will be impurities inside the oil tank and the oil pillow. If they are not handled, it will easily cause blockage in the oil pipe.

[0004] Therefore, it is necessary to provide an oil filter for a transformer oil tank to solve the above technical problems. Utility Model Content

[0005] The utility model provides an oil filter for a transformer oil tank, which solves the problem that impurities carried by inlet and outlet oil may cause blockage of the oil pipe.

[0006] In order to solve the above technical problems, the utility model provides an oil filter for a transformer oil tank, comprising: an oil tank assembly, the oil tank assembly comprising a box body, and condensing pipes are fixedly connected to the surfaces of both ends of the box body;

[0007] An oil pillow assembly, the oil pillow assembly being arranged on the top of the box body;

[0008] A filter assembly, the filter assembly is arranged at the bottom of the oil pillow assembly, the filter assembly comprises a filter box, and the filter box is fixedly connected to the bottom of the oil pillow assembly;

[0009] A filter plate, the filter plate is fixedly installed inside the filter box;

[0010] A partition plate, the partition plate is fixedly installed inside the filter box;

[0011] An oil delivery component, the oil delivery component is arranged at the bottom of the filter box;

[0012] a first anti-backflow component, wherein the first anti-backflow component is arranged inside the oil delivery component;

[0013] An oil outlet assembly, the oil outlet assembly being arranged at the bottom of the filter box;

[0014] A second anti-backflow component is arranged inside the oil outlet component.

[0015] Preferably, the oil pillow assembly includes a pillow tank, the pillow tank is fixedly connected to the top of the box body, the bottom of the pillow tank is fixedly connected to an oil delivery pipe, and the bottom of the pillow tank is fixedly connected to an oil inlet pipe.

[0016] Preferably, the oil transfer assembly includes a first transfer tube, which is fixedly connected to the bottom of the filter box near the right end, and a first connecting pipe is fixedly connected to the outer surface of the first transfer tube, and the bottom of the first connecting pipe is fixedly connected to the top of the box body.

[0017] Preferably, the first anti-backflow component includes a first piston, the first piston is movably installed inside the first transfer tube, and the bottom of the first piston is fixedly connected to a first sealing spring.

[0018] Preferably, the oil outlet assembly includes a second transfer tube, the second transfer tube is fixedly connected to the bottom of the second transfer tube near the left end, the outer surface of the second transfer tube is fixedly connected to a second connecting tube, and the bottom of the second connecting tube is fixedly connected to the top of the second transfer tube.

[0019] Preferably, the second anti-backflow component includes a second piston, the second piston is movably installed inside the second connecting pipe, and the top of the second piston is fixedly connected to a second sealing spring.

[0020] Compared with the related art, the oil filter of a transformer oil tank provided by the utility model has the following beneficial effects:

[0021] The utility model provides an oil filter for a transformer oil tank. By arranging a filter assembly at the bottom of an oil pillow assembly, the inlet and outlet oil can be filtered. At the same time, a first anti-backflow assembly and a second anti-backflow assembly are respectively arranged inside the oil delivery assembly and the oil outlet assembly, thereby effectively preventing the backflow of oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of an oil filter for a transformer oil tank provided by the utility model;

[0023] Figure 2 for Figure 1 The schematic diagram of the internal structure of the filter assembly, oil delivery assembly and oil outlet assembly shown;

[0024] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0025] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown.

[0026] Numbers in the figure: 1, oil tank assembly, 11, box body, 12, condenser pipe,

[0027] 2. Oil pillow assembly, 21. Pillow tank, 22. Oil delivery pipe, 23. Oil inlet pipe,

[0028] 3. Filter assembly, 31. Filter box, 32. Filter plate, 33. Separator plate,

[0029] 4. Oil delivery assembly, 41. First transfer pipe, 42. First connecting pipe,

[0030] 5. first anti-backflow assembly, 51. first piston, 52. first sealing spring,

[0031] 6. Oil outlet assembly, 61. Second transfer pipe, 62. Second connecting pipe,

[0032] 7. A second anti-backflow assembly, 71. A second piston, 72. A second sealing spring. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of an oil filter for a transformer oil tank provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the internal structure of the filter assembly, oil delivery assembly and oil outlet assembly shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown. An oil filter for a transformer oil tank comprises: an oil tank assembly 1, the oil tank assembly 1 comprises a box body 11, and condensing pipes 12 are fixedly connected to the surfaces of both ends of the box body 11;

[0035] An oil pillow assembly 2, wherein the oil pillow assembly 2 is disposed on the top of the box body 11;

[0036] A filter assembly 3, wherein the filter assembly 3 is disposed at the bottom of the oil pillow assembly 2, and the filter assembly 3 comprises a filter box 31, and the filter box 31 is fixedly connected to the bottom of the oil pillow assembly 2;

[0037] A filter plate 32, wherein the filter plate 32 is fixedly installed inside the filter box 31;

[0038] A partition plate 33, wherein the partition plate 33 is fixedly installed inside the filter box 31;

[0039] An oil delivery component 4, wherein the oil delivery component 4 is disposed at the bottom of the filter box 31;

[0040] A first anti-backflow component 5, which is arranged inside the oil delivery component 4;

[0041] An oil outlet assembly 6, wherein the oil outlet assembly 6 is disposed at the bottom of the filter box 31;

[0042] The second anti-backflow component 7 is arranged inside the oil outlet component 6.

[0043] Two support plates are fixedly installed at the bottom of the box body 11, which have the function of supporting and fixing. There are multiple condensing pipes 12, which are fixedly connected to the surfaces of the left and right ends of the box body 11, and can cool and dissipate heat inside the box body 11. The function of the oil pillow assembly 2 is to store oil while transporting and returning oil to the inside of the box body 11. The function of the filter assembly 3 is to filter impurities in the oil. The left and right ends of the filter box 31 are fixedly connected to the top of the box body 11 by a support frame. The filter plate 32 divides the interior of the filter box 31 into an upper and lower part, and the partition plate 33 divides the part into a left and right part, so that the oil can be filtered while isolating the inlet and outlet oil. The function of the oil transport assembly 4 is to transport oil to the inside of the box body 11. The function of the oil outlet assembly 6 is to transport the excess oil in the box body 11 to the inside of the oil pillow assembly 2 again. The function of the first anti-backflow assembly 5 and the second anti-backflow assembly 7 is to prevent the oil from backflowing.

[0044] The oil pillow assembly 2 includes a pillow tank 21 , which is fixedly connected to the top of the box body 11 , an oil delivery pipe 22 is fixedly connected to the bottom of the pillow tank 21 , and an oil inlet pipe 23 is fixedly connected to the bottom of the pillow tank 21 .

[0045] The pillow tank 21 is cylindrical, and the left and right ends of the bottom are fixedly connected to the surface of the rear end of the top of the box body 11 through a support plate. The oil delivery pipe 22 and the oil inlet pipe 23 are both L-shaped, and one end is fixedly connected to the bottom of the pillow tank 21, respectively discharging and inletting oil, and the bottom is respectively fixedly connected to the top of the left and right parts of the filter box 31.

[0046] The oil delivery assembly 4 includes a first transfer tube 41, which is fixedly connected to the bottom of the filter box 31 near the right end. The outer surface of the first transfer tube 41 is fixedly connected to a first connecting tube 42, and the bottom of the first connecting tube 42 is fixedly connected to the top of the box body 11.

[0047] The first transfer tube 41 is fixedly connected to the bottom of the right part of the filter box 31. The first connecting pipe 42 is L-shaped, one end of which is fixedly connected to the outer surface of the first transfer tube 41, and the other end is fixedly connected to the top of the box body 11 and communicates with the inside of the box body 11.

[0048] The first anti-backflow component 5 includes a first piston 51 , which is movably installed inside the first transfer tube 41 , and a first sealing spring 52 is fixedly connected to the bottom of the first piston 51 .

[0049] The first piston 51 is circular in shape and just the right size to be embedded in the first transfer tube 41. At the same time, the connection between the first transfer tube 41 and the first connecting tube 42 can be completely sealed. In a natural state, the elastic force of the first sealing spring 52 causes the first piston 51 to be sealed at the connection port between the first transfer tube 41 and the first connecting tube 42. When oil is transported to the interior of the housing 11, the pressure of the oil pushes the first piston 51 to move downward and compress the first sealing spring 52. The connection between the first piston 51 and the first sealing spring 52 is opened, and the oil enters the interior of the housing 11 through the first connecting tube 42.

[0050] The oil outlet assembly 6 includes a second transfer tube 61, which is fixedly connected to the bottom of the second transfer tube 61 near the left end, and a second connecting tube 62 is fixedly connected to the outer surface of the second transfer tube 61, and the bottom of the second connecting tube 62 is fixedly connected to the top of the second transfer tube 61.

[0051] One end of the first transfer tube 41 is fixedly connected to the bottom of the left part of the filter box 31 and is L-shaped. The second connecting tube 62 is fixedly connected to the other end of the second transfer tube 61. The bottom of the second connecting tube 62 is fixedly connected to the top of the box body 11 and is connected to the inside of the box body 11.

[0052] The second anti-backflow component 7 includes a second piston 71 , which is movably installed inside the second connecting pipe 62 , and a second sealing spring 72 is fixedly connected to the top of the second piston 71 .

[0053] The second piston 71 is circular in shape and just the right size to be embedded in the second connecting tube 62. At the same time, the connection between the second transfer tube 61 and the second connecting tube 62 can be completely sealed. In a natural state, the elastic force of the second sealing spring 72 causes the second piston 71 to be located at the connection port of the second transfer tube 61 and the second connecting tube 62 for sealing. When there is too much oil in the box body 11, the pressure of the oil pushes the second piston 71 to move upward and squeeze the second sealing spring 72 for compression. The connection between the first piston 51 and the first sealing spring 52 is opened, and the oil passes through the second transfer tube 61 into the interior of the filter box 31 for filtration.

[0054] The working principle of the oil filter of a transformer oil tank provided by the utility model is as follows:

[0055] When the oil in the box 11 is not full, the oil in the pillow tank 21 flows into the interior of the filter box 31 through the oil delivery pipe 22, is filtered by the filter plate 32, and impurities are blocked at the top of the filter plate 32. The oil flows into the interior of the first transfer pipe 41 through the filter plate 32. The pressure of the oil pushes the first piston 51 to move downward, thereby opening the connection between the first transfer pipe 41 and the first connecting pipe 42, and the oil enters the first connecting pipe 42, and finally flows into the interior of the box 11 until the oil in the box 11 is filled. When there is too much oil in the box 11, the pressure of the oil pushes the second piston 71 to move upward to compress the second sealing spring 72, and the connection between the second transfer pipe 61 and the second connecting pipe 62 is opened, and the oil flows into the interior of the filter box 31 through the second transfer pipe 61, and then the impurities are blocked at its bottom by filtering by the filter plate 32. The oil flows into the interior of the oil inlet pipe 23 through the filter plate 32 and is transported to the interior of the pillow tank 21.

[0056] Compared with the related art, the oil filter of a transformer oil tank provided by the utility model has the following beneficial effects:

[0057] The utility model provides an oil filter for a transformer oil tank. By arranging a filter component 3 at the bottom of an oil pillow component 2, the inlet and outlet oil can be filtered. At the same time, a first anti-backflow component 5 and a second anti-backflow component 7 are respectively arranged inside an oil delivery component 4 and an oil outlet component 6, thereby effectively preventing the backflow of oil.

[0058] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oil filter for a transformer oil tank, characterized in that: include: An oil tank assembly, the oil tank assembly comprising a box body, and condensing pipes are fixedly connected to the surfaces of both ends of the box body; An oil pillow assembly, the oil pillow assembly is arranged on the top of the box body, the oil pillow assembly includes a pillow tank, the pillow tank is fixedly connected to the top of the box body, the bottom of the pillow tank is fixedly connected to an oil delivery pipe, and the bottom of the pillow tank is fixedly connected to an oil inlet pipe; A filter assembly, the filter assembly is arranged at the bottom of the oil pillow assembly, the filter assembly comprises a filter box, and the filter box is fixedly connected to the bottom of the oil pillow assembly; A filter plate, the filter plate is fixedly installed inside the filter box; A partition plate, the partition plate is fixedly installed inside the filter box; An oil delivery assembly, the oil delivery assembly is arranged at the bottom of the filter box, the oil delivery assembly includes a first transfer tube, the first transfer tube is fixedly connected to the bottom of the filter box near the right end, the outer surface of the first transfer tube is fixedly connected to a first connecting pipe, and the bottom of the first connecting pipe is fixedly connected to the top of the box body; a first anti-backflow component, wherein the first anti-backflow component is arranged inside the oil delivery component; An oil outlet assembly, the oil outlet assembly being arranged at the bottom of the filter box; A second anti-backflow component is arranged inside the oil outlet component.

2. The oil filter for a transformer oil tank according to claim 1, characterized in that: The first anti-backflow component includes a first piston, which is movably installed inside the first transfer tube, and a first sealing spring is fixedly connected to the bottom of the first piston.

3. The oil filter for a transformer oil tank according to claim 1, characterized in that: The oil outlet assembly includes a second transfer tube, the outer surface of the second transfer tube is fixedly connected to a second connecting tube, and the bottom of the second connecting tube is fixedly connected to the top of the second transfer tube.

4. The oil filter for a transformer oil tank according to claim 3, characterized in that: The second anti-backflow component includes a second piston, which is movably installed inside the second connecting pipe, and a second sealing spring is fixedly connected to the top of the second piston.

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