Integrated oil filtering device of transformer

Abstract

The utility model discloses an integrated oil filtering device of a transformer. Relates to the power transmission equipment field. Comprising a container, and a rest area, an equipment area and a tool area are sequentially arranged in the container; and a vacuum oil filter, a dry air generator and a vacuum pump set for vacuumizing are fixedly connected in the equipment area. Through the integrated design, the dry air generator and the vacuum pump set are integrated and installed in the container, and connection of all pipelines is completed; when the equipment needs to be used, the equipment can be integrally transferred and quickly pulled to the site, and does not need to be unfolded and assembled on the site, so that the installation and maintenance of the transformer are accelerated; and application and allocation of equipment and materials in the project are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of power transmission equipment, in particular to an integrated transformer oil filter device. Background Art

[0002] With the development of the national economy, the demand for electric energy has become stronger. As an important tool for stabilizing growth, adjusting the structure, benefiting people's livelihood, and promoting high-quality economic and social development, power grid construction has become more important. In recent years, the State Grid Corporation of China has continuously increased its investment in power grids. With the acceleration of power grid construction, higher requirements have been put forward for the construction period and quality of power grid transmission and transformation projects. In the daily operation and maintenance of substations, it is very important to ensure the safe and stable operation of substations. With the advancement of science and technology today, the requirements for the technical content of substation maintenance are getting higher and higher, and the technical density of products is also increasing, which puts higher requirements on the reliability of products.

[0003] At present, in the traditional transformer installation process, there are still some defects and shortcomings in the vacuuming and oil filtering processes, such as the large number of large and heavy construction machinery, the large construction site area, the long construction time, the oil needs to be sent for inspection after the oil filtering is completed, and the oil quality monitoring device is used to monitor and judge whether it is qualified; the efficiency is low, the control is difficult, and the monitoring method is backward; in actual construction, cumbersome and complicated material approval processes are often required, and the installation of materials and equipment after transportation is also time-consuming; therefore, it often takes more than 25 days to complete the vacuuming and oil filtering processes of a three-phase transformer. Utility Model Content

[0004] In order to effectively improve the maintenance efficiency and quality and ensure the safe and reliable operation of the transformer, the present application provides a transformer integrated oil filter device.

[0005] The present application provides a transformer integrated oil filter device, which adopts the following technical solution:

[0006] A transformer integrated oil filter device comprises a container, wherein a rest area, an equipment area and a tool area are sequentially arranged in the container; a vacuum oil filter, a dry air generator and a vacuum pump group for vacuuming are fixedly connected in the equipment area.

[0007] Optionally, a fixed shock-absorbing platform for fixedly placing the vacuum oil filter, dry air generator and vacuum pump group is provided in the equipment area.

[0008] Optionally, the vacuum oil filter includes an oil filter pipe, which is sequentially connected to an inlet and outlet interchange valve, a coarse filter, an oil feed pump, a pressure transmitter, a first-stage fine filter, a liquid flow switch, a heater, a valve, a vacuum tank, an oil drain pump, a pressure gauge, a second-stage fine filter, a one-way valve and an oil inlet and outlet.

[0009] Optionally, a condenser, a booster Roots pump and a vacuum pump are connected above the vacuum tank; a vacuum gauge, an external air extraction interface valve and an oil drain valve are provided on the condenser.

[0010] Optionally, the condenser is also connected to the vacuum pump group.

[0011] Optionally, an air path butterfly valve is provided between the condenser and the vacuum tank.

[0012] Optionally, a sampling valve is further provided between the one-way valve and the oil outlet.

[0013] Optionally, the container is a three-door container.

[0014] Optionally, a winding reel is provided in the tool area

[0015] In summary, this application includes the following beneficial technical effects:

[0016] This application uses an integrated design to integrate the dry air generator and vacuum pump group into the container and complete the connection of various pipelines; when these equipment are needed, they can be quickly pulled to the site without the need for on-site assembly, which speeds up the installation and maintenance of the transformer; it also facilitates the application and allocation of equipment and materials within the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of a transformer integrated oil filter device of the present application;

[0018] Figure 2 yes Figure 1 Working principle diagram of medium vacuum oil filter;

[0019] Description of reference numerals:

[0020] 1. Container; 11. Rest area; 12. Equipment area; 121. Fixed shock-absorbing platform; 13. Tool area; 2. Vacuum oil filter; 201. Inlet and outlet interchange valve; 202. Coarse filter; 203. Oil feed pump; 204. Pressure transmitter; 205. Primary fine filter; 206. Liquid flow switch; 207. Heater; 208. Valve; 209. Vacuum tank; 210. Oil discharge pump; 211. Pressure gauge; 212. Secondary fine filter; 213. Check valve; 214. Oil outlet; 215. Condenser; 216. Booster Roots pump; 217. Vacuum pump; 218. Vacuum gauge; 219. External air extraction interface valve; 220. Oil drain valve; 221. Sampling valve; 222. Air path butterfly valve; 3. Vacuum pump group; 4. Dry air generator; 5. Winding reel. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-2 This application is described in further detail.

[0022] The embodiment of the present application discloses an integrated transformer oil filter device; the device is installed as a whole in a container 1, and the container 1 is a three-door container 1; a rest area 11, an equipment area 12 and a tool area 13 are sequentially arranged in the container 1, and a partition is arranged between the equipment area 12 and the rest area 11; a fixed shock-absorbing platform 121 is arranged in the equipment area 12, which is used to place a vacuum oil filter 2, a vacuum pump group 3 and a dry air generator 4.

[0023] The vacuum oil filter 2 comprises an inlet and outlet interchange valve 201, a coarse filter 202, an oil feed pump 203, a pressure transmitter 204, a primary fine filter 205, a liquid flow switch 206, a heater 207, a valve 208, a vacuum tank 209, an oil discharge pump 210, a pressure gauge 211, a secondary fine filter 212, a one-way valve 213, a sampling valve 221 and an oil outlet 214 which are sequentially connected through an oil filter pipe; the oil discharge pump 210 is connected to the bottom of the vacuum tank 209, and a condenser 215, a booster Roots pump 216 and a vacuum pump 217 are sequentially connected to the top of the vacuum tank 209; an air path butterfly valve 222 is arranged between the condenser 215 and the vacuum tank 209; a vacuum gauge 218, an external air extraction interface valve 219 and an oil drain valve 220 are also arranged on the condenser 215 and connected to the vacuum pump group 3.

[0024] When vacuum oil filtration is required, the oil passes through the coarse filter under negative pressure to remove larger impurity particles and then enters the oil inlet pump 203. After passing through the primary filter, it enters the heater 207. The heated oil enters the vacuum tank 209. The oil passes through the vacuum volatilization degassing element in the tank to make the oil thin-film treatment, so that the water and gas in the oil are fully evaporated under vacuum state, and discharged to the condenser 215 through the vacuum system. After condensing into liquid, it is manually discharged, and part of the gas is discharged through the vacuum pump group 3. After degassing and dehydration, the oil settles at the bottom of the vacuum tank 209 and is discharged by the oil discharge pump 210. The oil discharged by the oil discharge pump 210 enters the secondary filter to remove impurities larger than 1μm in the oil. The purified oil is discharged through the oil outlet 214 and returned to the transformer.

[0025] At the same time, when vacuuming is required alone, the gas circuit butterfly valve 222 is closed, and the external air extraction interface valve 219 is opened so that it is connected to the inside of the transformer and vacuuming can be performed through the vacuum pump group 3.

[0026] Finally, in order to facilitate the overall operation of the device, tools such as a winding drum 5 and an electrical box are provided in the tool area 13 , and a hanging ladder is provided on the outside of the container 1 .

[0027] The present application adopts an integrated design, so that the dry air generator 4 and the vacuum pump group 3 are integrated and installed in the container 1 and the pipeline connections are completed; when these devices are needed, they can be quickly pulled to the site without the need for on-site assembly, which speeds up the installation and maintenance of the transformer; at the same time, it also facilitates the application and deployment of equipment and materials within the project.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transformer integrated oil filter device, characterized in that: The invention comprises a container (1), wherein a rest area (11), an equipment area (12) and a tool area (13) are sequentially arranged in the container (1); a vacuum oil filter (2), a dry air generator (4) and a vacuum pump group (3) for evacuating vacuum are fixedly connected to the equipment area (12).

2. The transformer integrated oil filter device according to claim 1, characterized in that: The equipment area (12) is provided with a fixed shock-absorbing platform (121) for fixedly placing the vacuum oil filter (2), the dry air generator (4) and the vacuum pump group (3).

3. The transformer integrated oil filter device according to claim 1, characterized in that: The vacuum oil filter (2) comprises an inlet and outlet interchange valve (201), a coarse filter (202), an oil feed pump (203), a pressure transmitter (204), a primary fine filter (205), a liquid flow switch (206), a heater (207), a valve (208), a vacuum tank (209), an oil discharge pump (210), a pressure gauge (211), a secondary fine filter (212), a one-way valve (213) and an oil outlet (214), which are sequentially connected through an oil filter pipe.

4. The transformer integrated oil filter device according to claim 3, characterized in that: The upper part of the vacuum tank (209) is connected to a condenser (215), a booster Roots pump (216) and a vacuum pump (217); the condenser (215) is provided with a vacuum gauge (218), an external air extraction interface valve (219) and an oil drain valve (220).

5. The transformer integrated oil filter device according to claim 4, characterized in that: The condenser (215) is also connected to the vacuum pump group (3).

6. The transformer integrated oil filter device according to claim 5, characterized in that: A gas path butterfly valve (222) is provided between the condenser (215) and the vacuum tank (209).

7. The transformer integrated oil filter device according to claim 3, characterized in that: A sampling valve (221) is also provided between the one-way valve (213) and the oil outlet (214).

8. The transformer integrated oil filter device according to claim 1, characterized in that: The container (1) is a three-door container.

9. The transformer integrated oil filter device according to claim 1, characterized in that: A winding reel (5) is provided in the tool area (13).

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