Vacuum oil filtering and nitrogen charging all-in-one machine

Abstract

The utility model relates to the technical field of vacuum oil filtering, in particular to a vacuum oil filtering and nitrogen charging all-in-one machine. Comprising a transformer body and a filtering assembly, one side of the transformer body is connected with a nitrogen cylinder through a pipeline, the other side of the transformer body is connected with a vacuum separation tank through a pipeline, and the filtering assembly comprises a coarse filter and a fine filter and is used for filtering pumped-out and pumped-in oil products. According to the vacuum oil filtering and nitrogen charging all-in-one machine, the coarse filter is used for preliminarily filtering an oil product to be treated, and the fine filter is used for further filtering the oil product pumped after vacuum filtering, so that the inside of the device is prevented from being blocked, the filtering effect on the oil product is improved, and the vacuum oil filtering and nitrogen charging all-in-one machine is beneficial to popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum oil filtering, in particular to a vacuum oil filtering and nitrogen charging integrated machine. Background Art

[0002] The transformer has been in operation for a long time, so that the transformer oil contains moisture, air and impurities, which causes the insulation strength of the transformer oil to decrease and the heat dissipation effect to be poor, bringing inconvenience to the operation of the transformer. Therefore, the transformer oil needs to be purified.

[0003] Traditional transformers have two oil holes, one for oil inlet and the other for oil outlet. The transformer oil is pumped out through the oil outlet through the pump equipped in the vacuum oil filter purification equipment and then pumped into the transformer after purification. However, the traditional equipment does not set up a filtering process during the oil extraction and pumping process. This design not only affects the filtering effect of the oil, but also the impurities in the oil will block the pipes in the equipment, thereby shortening the service life of the equipment, which is not conducive to its promotion and use.

[0004] Therefore, how to provide a vacuum oil filter and nitrogen filling integrated machine with filtering function during the process of oil extraction and pumping has become a technical problem to be solved by technical personnel in this field. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to provide a vacuum oil filtering and nitrogen filling integrated machine with filtering function in the process of oil extraction and pumping.

[0006] To achieve the above-mentioned purpose, the utility model provides a vacuum oil filtration and nitrogen filling integrated machine, comprising: a transformer body and a filtering component, one side of the transformer body is connected to a nitrogen bottle via a pipeline, and the other side is connected to a vacuum separation tank via a pipeline, and the filtering component comprises a coarse filter and a fine filter, which are used to filter the extracted and pumped oil.

[0007] The transformer body adopts the existing structure on the market in this field, so it will not be elaborated. Three nitrogen bottles are arranged in parallel with equal intervals for filling nitrogen into the transformer body. The vacuum separation tank is used for vacuum filtering of the oil. The coarse filter is used for pre-filtering the oil to be treated to filter out large particles of impurities in the oil. The fine filter is used for further filtering the oil after the treatment is completed and pumped in, thereby ensuring the filtering effect of the oil.

[0008] Preferably, an oil unloading pipeline is provided at the bottom of the transformer body, and the other end of the oil unloading pipeline is connected to the coarse filter.

[0009] The oil unloading pipeline is preset with a valve. Open the valve on the oil unloading pipeline to extract the oil in the transformer body, and use a coarse filter to perform preliminary filtration on the oil.

[0010] Preferably, the other end of the coarse filter is connected to the heater via a pipeline, and the other end of the heater is connected to the vacuum separation tank via a pipeline.

[0011] The heater is used to heat the oil, and the heated oil enters the vacuum separation tank for vacuum filtration process.

[0012] Preferably, a temperature measuring head is installed on the top of the heater, and a controller is connected to one side of the temperature measuring head, and the controller is electrically connected to the heater and the temperature measuring head.

[0013] The temperature measuring head is used to detect the temperature of the oil inside the heater when it is heated, and transmit the detected data to the display screen of the controller. The staff can adjust the temperature of the heater through the controller according to time requirements.

[0014] Preferably, one side of the vacuum separation tank is connected to a vacuum pump and a condenser via a pipeline.

[0015] The vacuum pump draws vacuum on the oil in the vacuum separation tank through the condenser. Under vacuum conditions, trace moisture in the oil evaporates into water vapor, and trace gases in the oil break through the oil film and precipitate and enter the condenser together. Most of the water vapor is condensed into water. After dehydration and degassing, the oil bottle settles in the liquid phase area at the bottom of the vacuum separation tank. This method is common knowledge, so it will not be repeated.

[0016] Preferably, the bottom of the vacuum separation tank is connected to an oil outlet pump via a pipeline, and one side of the oil outlet pump is connected to a fine filter via a pipeline.

[0017] The oil outlet pump extracts the vacuum filtered oil from the vacuum separation tank and further filters and screens it through a fine filter.

[0018] Preferably, the other side of the fine filter is connected to the oil injection pipeline and the shunt pipe via a pipeline, the other end of the oil injection pipeline is connected to the transformer body, and the other end of the shunt pipe is connected to the oil tank.

[0019] Valves are provided on the oil filling pipe and the shunt pipe. The filtered oil is injected into the transformer body through the oil filling pipe, and the excess oil enters the oil tank through the shunt pipe for temporary storage. This method is a conventional technical method in this field, so it will not be repeated here.

[0020] The beneficial effects of the utility model are:

[0021] When the utility model is in use, the coarse filter is used to perform preliminary filtration on the oil products extracted to be processed, and the fine filter is used to further filter the oil products pumped in after vacuum filtration. This design not only avoids clogging inside the device, but also improves the filtering effect on the oil products, which is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a front view structural schematic diagram of the overall specific implementation method of the utility model.

[0024] Parts Name

[0025] 1. Transformer body; 2. Nitrogen cylinder; 3. Oil unloading pipeline; 4. Coarse filter; 5. Heater; 501. Temperature measuring head; 502. Controller; 6. Vacuum separation tank; 601. Vacuum pump; 602. Condenser; 7. Oil outlet pump; 8. Fine filter; 9. Oil filling pipeline; 10. Diverter pipe; 11. Oil tank. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. Preferably, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1The utility model provides a vacuum oil filter and nitrogen filling integrated machine, including: a transformer body 1 and a filter assembly, one side of the transformer body 1 is connected to a nitrogen bottle 2 through a pipeline, and the other side is connected to a vacuum separation tank 6 through a pipeline, the filter assembly includes a coarse filter 4 and a fine filter 8, which are used to filter the oil products extracted and pumped in, an oil unloading pipeline 3 is arranged at the bottom of the transformer body 1, and the other end of the oil unloading pipeline 3 is connected to the coarse filter 4, the other end of the coarse filter 4 is connected to the heater 5 through a pipeline, and the other end of the heater 5 is connected to the vacuum separation tank 6 through a pipeline, and the top of the heater 5 is installed There is a temperature measuring head 501, and a controller 502 is connected to one side of the temperature measuring head 501, and the controller 502 is electrically connected to the heater 5 and the temperature measuring head 501, a vacuum pump 601 and a condenser 602 are connected to one side of the vacuum separation tank 6 through a pipeline, an oil outlet pump 7 is connected to the bottom of the vacuum separation tank 6 through a pipeline, and one side of the oil outlet pump 7 is connected to a fine filter 8 through a pipeline, and the other side of the fine filter 8 is connected to an oil injection pipeline 9 and a shunt pipe 10 through a pipeline, the other end of the oil injection pipeline 9 is connected to the transformer body 1, and the other end of the shunt pipe 10 is connected to the oil tank 11;

[0029] In this embodiment, first, nitrogen is injected into the transformer body 1 by using the nitrogen bottle 2. Secondly, the valve on the oil unloading pipeline 3 is opened. The nitrogen pressure causes the transformer oil in the transformer body 1 to flow out from the oil unloading pipeline 3 to the coarse filter 4, which is beneficial for the coarse filter 4 to perform preliminary filtering on the oil. Thirdly, the oil after preliminary filtering enters the heater 5 and is heated to a specified temperature. During heating, the temperature measuring head 501 is designed to detect the temperature of the oil during heating, and transmit the detected data to the display screen on the controller 502. The staff can adjust the temperature of the heater 5 through the controller 502 according to actual needs. Next, the heated oil enters the vacuum separation tank 6, and the vacuum pump 601 evacuates the oil in the vacuum separation tank 6 through the condenser 602. Under vacuum conditions, trace moisture in the oil evaporates into water vapor, and trace gases in the oil break through the oil film and precipitate, and enter the condenser 602 together. Most of the water vapor is condensed into water. After dehydration and degassing, the oil bottle settles in the liquid phase area at the bottom of the vacuum separation tank 6. Then, the oil outlet pump 7 is started to extract the vacuum filtered oil in the vacuum separation tank 6, and further filter and screen it through the fine filter 8. Finally, the valve on the oil filling pipeline 9 is opened to inject the processed oil into the transformer body 1. During injection, if there is excess oil, the valve on the shunt pipe 10 is opened to allow the oil to flow into the oil tank 11 for temporary storage.

[0030] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A vacuum oil filtration and nitrogen filling integrated machine, characterized in that: include: A transformer body (1) and a filter assembly, wherein one side of the transformer body (1) is connected to a nitrogen bottle (2) via a pipeline, and the other side is connected to a vacuum separation tank (6) via a pipeline, and the filter assembly comprises a coarse filter (4) and a fine filter (8) for filtering the extracted and pumped oil.

2. The vacuum oil filtration and nitrogen filling integrated machine according to claim 1, characterized in that: An oil unloading pipeline (3) is provided at the bottom of the transformer body (1), and the other end of the oil unloading pipeline (3) is connected to a coarse filter (4).

3. The vacuum oil filtration and nitrogen filling integrated machine as claimed in claim 2, characterized in that: The other end of the coarse filter (4) is connected to the heater (5) via a pipeline, and the other end of the heater (5) is connected to the vacuum separation tank (6) via a pipeline.

4. The vacuum oil filtration and nitrogen filling integrated machine as claimed in claim 3, characterized in that: A temperature measuring head (501) is installed on the top of the heater (5), and a controller (502) is connected to one side of the temperature measuring head (501), and the controller (502) is electrically connected to the heater (5) and the temperature measuring head (501).

5. The vacuum oil filtration and nitrogen filling integrated machine according to claim 1, characterized in that: One side of the vacuum separation tank (6) is connected to a vacuum pump (601) and a condenser (602) via a pipeline.

6. The vacuum oil filtration and nitrogen filling integrated machine as claimed in claim 5, characterized in that: The bottom of the vacuum separation tank (6) is connected to an oil outlet pump (7) via a pipeline, and one side of the oil outlet pump (7) is connected to a fine filter (8) via a pipeline.

7. The vacuum oil filtration and nitrogen filling integrated machine according to claim 6, characterized in that: The other side of the fine filter (8) is connected to the oil injection pipeline (9) and the shunt pipe (10) via a pipeline; the other end of the oil injection pipeline (9) is connected to the transformer body (1); and the other end of the shunt pipe (10) is connected to the oil tank (11).

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