Transformer oil recycling and filtering device

Abstract

The utility model relates to the technical field of transformer oil treatment, in particular to a transformer oil recycling and filtering device which comprises a filtering box and a temporary storage tank. An inclined filter screen is pre-arranged in the filter tank, and an oil inlet tank and an oil outlet tank are respectively reserved above and below the filter screen; an oil inlet and an oil discharge outlet are reserved in the temporary storage tank, the oil inlet of the temporary storage tank is communicated with the oil discharge tank through a pipeline, and a first oil pump is arranged on the pipeline between the temporary storage tank and the oil discharge tank. According to the transformer oil filtering device, efficient filtering of transformer oil is achieved through the inclined filtering net, it is ensured that solid particles and impurities in the oil can be effectively intercepted through the design, meanwhile, clean oil can smoothly flow into the oil discharging box, and the filtering efficiency and the oil quality are improved; and the transformer oil subjected to preliminary filtration is driven by the oil pump I through a pipeline, and is conveyed into the temporary storage tank for temporary storage, so that subsequent further treatment or use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil treatment, in particular to a transformer oil recovery and filtering device. Background Art

[0002] During the replacement or maintenance of the transformer, the transformer oil can be recycled. During the operation of the transformer, various impurities may be mixed into the oil, such as moisture, solid particles, oxides and free carbon, which will seriously affect the insulation performance of the oil and the safe operation of the equipment. Therefore, filtering the recycled transformer oil is an essential step.

[0003] After existing transformer oil is recovered and filtered, it is generally collected and transported to a processing center for centralized filtration. During the transfer process, the transformer oil is prone to precipitation, and impurities are easily blocked when concentrated together, affecting the efficiency and effect of subsequent centralized processing. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a transformer oil recovery and filtering device to solve the problem that impurities and sediments are easy to accumulate and clog after the transformer oil is recovered.

[0005] The utility model solves the above technical problems with the following technical solutions: A transformer oil recovery and filtering device comprises a filter box and a temporary storage tank;

[0006] The filter box is preset with an inclined filter screen, and an oil inlet tank and an oil outlet tank are reserved above and below the filter screen respectively;

[0007] An oil inlet and an oil outlet are reserved on the temporary storage tank. The oil inlet of the temporary storage tank is connected with the oil outlet tank through a pipeline, and an oil pump 1 is installed on the pipeline between the temporary storage tank and the oil outlet tank.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a transverse oil delivery pipe is connected above the oil inlet tank, and a plurality of oil holes arranged at intervals are opened at the bottom of the oil delivery pipe.

[0010] Furthermore, one end of the oil delivery pipe is closed, and the other end is connected to an oil inlet pipeline of transformer oil, and an oil pump 2 is arranged on the oil inlet pipeline.

[0011] Furthermore, the bottom of the temporary storage tank is bucket-shaped, and its oil discharge port is located at the lowest position of the bucket; the oil discharge port of the temporary storage tank is connected to the oil discharge pipe.

[0012] Furthermore, a rotating rod is axially arranged in the inner cavity of the temporary storage tank, and a support rod is radially arranged on the rotating rod, and an oil brush in contact with the inner wall of the temporary storage tank is installed at the end of the support rod; and a motor connected to the rotating rod is arranged on the temporary storage tank.

[0013] Furthermore, a slide seat connected to the oil brush is sleeved on the support rod, and a spring for elastically supporting the slide seat is also arranged on the support rod.

[0014] Moreover, the transformer oil recovery and filtration device provided by the utility model has at least the following beneficial effects compared with the prior art:

[0015] 1. The inclined filter screen realizes efficient filtration of transformer oil. This design ensures that solid particles and impurities in the oil can be effectively retained, while the clean oil can flow smoothly into the oil drain tank, improving the filtration efficiency and oil quality.

[0016] 2. The transformer oil that has been initially filtered is transported through the pipeline and driven by oil pump 1 to the temporary storage tank for temporary storage for further processing or use.

[0017] 3. Evenly distributed oil flow: The horizontal oil pipeline and the oil holes arranged at intervals at the bottom allow the transformer oil to drip or flow out evenly in multiple small oil streams, increasing the contact area between the oil and the filter plate, thereby improving the uniformity and efficiency of filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the filter box of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the filter box of the utility model;

[0021] Figure 4 It is a cross-sectional view of the filter box of the utility model from another perspective;

[0022] Figure 5 It is a cross-sectional view of the temporary storage tank of the utility model;

[0023] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Filter box; 1.1. Filter screen; 2. Temporary storage tank; 2.1. Oil drain pipe; 3. Oil inlet tank; 4. Oil drain tank; 5. Oil pump 1; 6. Oil delivery pipe; 6.1. Oil hole; 7. Oil pump 2; 8. Rotating rod; 8.1. Support rod; 8.2. Sliding seat; 8.3. Spring; 9. Oil brush; 10. Motor. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the transformer oil recovery and filtering device of the utility model comprises a filter box 1 and a temporary storage tank 2;

[0029] The filter box 1 is preset with an inclined filter screen 1.1, and an oil inlet tank 3 and an oil outlet tank 4 are reserved above and below the filter screen 1.1 respectively;

[0030] An oil inlet and an oil outlet are reserved on the temporary storage tank 2. The oil inlet of the temporary storage tank 2 is connected to the oil outlet tank 4 through a pipeline, and an oil pump 5 is installed on the pipeline between the temporary storage tank 2 and the oil outlet tank 4.

[0031] In this embodiment, it is mainly composed of a filter box 1 and a temporary storage tank 2. Inside the filter box 1, there is an inclined filter screen 1.1, which plays a key filtering role. Above the filter screen 1.1, there is an oil inlet box 3 for receiving the transformer oil to be filtered. When the transformer oil enters the filter box 1 through the oil inlet box 3, the oil will naturally flow to the inclined filter screen 1.1.

[0032] On the filter 1.1, solid particles, impurities, etc. in the oil are trapped, while the clean oil flows through the gaps or holes of the filter 1.1 to the oil drain box 4 below the filter 1.1. This process realizes the preliminary filtration of the transformer oil.

[0033] Next, the transformer oil that has been initially filtered is transported to the temporary storage tank 2 through the pipeline, driven by the oil pump 5. The temporary storage tank 2 is provided with an oil inlet and an oil outlet, which are used to receive and discharge the transformer oil respectively. The function of the temporary storage tank 2 is to temporarily store the filtered transformer oil for further processing or use.

[0034] As a supplement, the filter 1.1 can be made of stainless steel, polyester fiber, glass fiber and other materials, with a mesh size of 100-200 microns, which is suitable for removing larger solid particles and impurities. It can ensure a higher flow rate while maintaining a certain filtration efficiency, and is suitable for preliminary filtration of transformer oil.

[0035] During use, the filter 1.1 needs to be cleaned or replaced regularly to ensure the filtering effect.

[0036] As an implementation method, Figure 4 As shown, the oil inlet tank 3 is connected to a transverse oil delivery pipe 6 above, and a plurality of oil holes 6.1 arranged at intervals are opened at the bottom of the oil delivery pipe 6; when the transformer oil is delivered into the transverse oil delivery pipe 6 by some means such as an oil pump or other delivery equipment, since the oil holes 6.1 are arranged at intervals, the transformer oil will drip or flow out from multiple positions simultaneously and evenly, forming multiple fine oil flows.

[0037] Since the oil flow is refined and evenly distributed, the contact area between the impurities in the transformer oil and the filter plate 2 is increased when passing through the filter plate 2, and the filtering effect is more uniform and more efficient.

[0038] At the same time, since the oil flow is stable, it is not easy to form accumulation or blockage on the filter plate 2, which further improves the filtering efficiency.

[0039] Specifically, one end of the oil delivery pipe 6 is closed, and the other end is connected to the oil inlet pipeline of the transformer oil, and the oil inlet pipeline is provided with an oil pump 7

[0040] As an implementation method, Figure 5 As shown, the bottom of the temporary storage tank 2 is bucket-shaped, and its oil discharge port is located at the lowest position of the bucket; the oil discharge port of the temporary storage tank 2 is connected to the oil discharge pipe 2.1; when the transformer needs to be replaced or maintained, the transformer oil will be recycled. At this time, the oil pump 2 7 starts to work and sucks the transformer oil into the oil delivery pipe 6 through the oil inlet pipeline.

[0041] As an embodiment, the inner cavity of the temporary storage tank 2 is provided with a rotating rod 8 along the axial direction, and the rotating rod 8 is provided with a support rod 8.1 along the radial direction, and the end of the support rod 8.1 is equipped with an oil brush 9 that contacts the inner wall of the temporary storage tank 2; the temporary storage tank 2 is provided with a motor 10 connected to the rotating rod 8, and the main function of the oil brush 9 is to remove transformer oil sediment and impurities on the inner wall of the temporary storage tank 2. When the rotating rod 8 rotates, the support rod 8.1 and the oil brush 9 will also rotate, thereby achieving cleaning of the tank wall.

[0042] The motor 10 drives the rotating rod 8 and the oil brush 9 to clean the transformer oil regularly or continuously, thereby effectively preventing the transformer oil from being precipitated and impurities from accumulating after being stored in the temporary storage tank 2 for a long time.

[0043] As an embodiment, the support rod 8.1 is also provided with a slide seat 8.2 connected to the oil brush 9, and the support rod 8.1 is also provided with a spring 8.3 for elastically supporting the slide seat 8.2.

[0044] Specifically, the sliding seat 8.2 is a key component connecting the oil brush 9 and the support rod 8.1, which allows the oil brush 9 to slide on the support rod 8.1 to a certain extent. This sliding function helps the oil brush 9 adapt to the ups and downs of the inner wall of the temporary storage tank 2.

[0045] The function of the spring 8.3 is to ensure that the oil brush 9 always keeps close contact with the inner wall of the temporary storage tank 2. Even if the inner wall of the temporary storage tank 2 is uneven or tilted, the spring 8.3 can adjust the position of the oil brush 9 through its elastic force so that it always fits the inner wall for cleaning.

[0046] It should be noted that, in this article, the terms "include", "comprises" or any other variations 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0047] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A transformer oil recovery and filtration device, characterized in that: It comprises a filter box (1) and a temporary storage tank (2); The filter box (1) is preset with an inclined filter screen (1.1), and an oil inlet tank (3) and an oil outlet tank (4) are respectively reserved above and below the filter screen (1.1); An oil inlet and an oil outlet are reserved on the temporary storage tank (2); the oil inlet of the temporary storage tank (2) is connected to the oil outlet tank (4) through a pipeline, and an oil pump (5) is installed on the pipeline between the temporary storage tank (2) and the oil outlet tank (4).

2. The transformer oil recovery and filtration device according to claim 1, characterized in that: The oil inlet box (3) is connected to a horizontal oil delivery pipe (6) above, and a plurality of oil holes (6.1) arranged at intervals are provided at the bottom of the oil delivery pipe (6).

3. The transformer oil recovery and filtration device according to claim 2, characterized in that: One end of the oil delivery pipe (6) is closed, and the other end is connected to an oil inlet pipeline of transformer oil, and an oil pump 2 (7) is arranged on the oil inlet pipeline.

4. The transformer oil recovery and filtration device according to claim 1, characterized in that: The bottom of the temporary storage tank (2) is bucket-shaped, and its oil discharge port is located at the lowest position of the bucket; the oil discharge port of the temporary storage tank (2) is connected to the oil discharge pipe (2.1).

5. The transformer oil recovery and filtration device according to claim 1, characterized in that: The temporary storage tank (2) is provided with a rotating rod (8) in the axial direction of the inner cavity, and the rotating rod (8) is provided with a supporting rod (8.1) in the radial direction, and an oil brush (9) in contact with the inner wall of the temporary storage tank (2) is installed at the end of the supporting rod (8.1); the temporary storage tank (2) is provided with a motor (10) connected to the rotating rod (8) for driving.

6. The transformer oil recovery and filtration device according to claim 5, characterized in that: The support rod (8.1) is also sleeved with a slide seat (8.2) connected to the oil brush (9), and the support rod (8.1) is also provided with a spring (8.3) for elastically supporting the slide seat (8.2).

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