CN210073570U

CN210073570U - Transformer oil-purifying circulation system

Info

Publication number: CN210073570U
Application number: CN201920853142.0U
Authority: CN
Inventors: 于胜斌; 张保国; 于清明; 刘明军; 徐海峰
Original assignee: China Kai Yuan Engineering Design Research Institute Co Ltd
Current assignee: China Kai Yuan Engineering Design Research Institute Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-02-14
Anticipated expiration: 2029-06-06

Abstract

The utility model relates to a transformer absolute oil circulation system, characterized by: it at least comprises: the device comprises a clean oil tank, a screw pump, a first flowmeter, a second flowmeter, a transformer, a heater and a filter; the oil stored in the clean oil tank of the oil storage area is communicated with the input port of the filter through a screw pump and a first flowmeter which are connected in series, and is filtered by the filter and output through the output port of the filter; the oil filtered by the filter is heated to about 80 ℃ by the heater and is input into the transformer through the second flowmeter. The transformer clean oil circulating system has good manufacturability, can reduce energy consumption and cost, improves the space utilization rate in a workshop, and simultaneously solves the problems of large granularity and water and gas content in oil deposited in an oil pipeline in the transformer oil conveying process.

Description

Transformer oil-purifying circulation system

Technical Field

The utility model relates to a transformer absolute oil circulation system.

Background

The traditional transformer oil injection process comprises the following steps: a clean oil tank 1 in an oil reservoir area is filled with oil from a static pressure suspension tank 4 in a workshop through a screw pump 2 in an oil pump room and a first flow meter 3, and the static pressure suspension tank 4 in the workshop is filled with oil to a transformer 7 through a second flow meter 5. An existing transformer oil purification circulation system needs to be provided with an oil storage tank with the length of 40-100 m in a workshop, the management is not in accordance with the regulation of 'architectural design fire protection code', the oil purification storage tank in an oil depot area is conveyed to the workshop through an outdoor oil pipeline and is overhead to the oil purification tank, the granularity of oil deposited in the oil pipeline is large, the moisture content and the air content of the oil exceed standards, a single-tank circulation oil filtering treatment needs to be carried out on a static pressure hanging tank through oil filtering in the workshop, the manufacturability is poor, the energy waste is large, and the cost and the space are increased.

Disclosure of Invention

The utility model aims at providing a manufacturability is good, can reduce energy resource consumption and reduce cost, improves the transformer absolute oil circulation system of space utilization in the workshop, solves the problem that the granularity is big and contain water and gas in the oil of the interior sedimentary oil of oil pipe way among the transformer oil transportation process simultaneously.

The utility model aims at realizing like this, a transformer oil-purifying circulation system, characterized by: it at least comprises: the device comprises a clean oil tank, a screw pump, a first flowmeter, a second flowmeter, a transformer, a heater and a filter; the oil stored in the clean oil tank of the oil storage area is communicated with the input port of the filter through a screw pump and a first flowmeter which are connected in series, and is filtered by the filter and output through the output port of the filter; the oil filtered by the filter is heated to about 80 ℃ by the heater and is input into the transformer through the second flowmeter.

The heater delivery outlet include the backward flow branch road, the heater delivery outlet passes through the backward flow branch road and is connected with the absolute oil jar entry pipeline valve, will pass through the transformer absolute oil circulation to the absolute oil jar that filter and heater filter and heating.

The heater output port further comprises a second shunt branch, the second shunt branch is connected with a static pressure hanging tank pipeline valve, the static pressure hanging tank is connected with the oil storage cabinet through a pipeline valve, and the oil storage cabinet output port is connected with a transformer interface.

The static pressure suspension tank is connected with a liquid level sensor, and the liquid level sensor gives out the liquid level state of the static pressure suspension tank.

The filter is a 1 μm precision filter.

The utility model has the advantages that: the qualified transformer oil of vacuum filtration processing pours into the clean oil holding vessel in oil reservoir district into in the oil pump room, when the workshop need give the transformer oiling, detailed oiling technology is: the clean oil storage tank of the oil depot → the screw pump in the oil depot → the flowmeter → the 1 μm precision filter → the heater in the workshop → the clean oil storage tank is returned to, and the oil injection valve and the flowmeter are arranged behind the heater in the workshop for injecting oil to the transformer, so that the oil can be injected to the transformer. The transformer oil in the clean oil storage tank is in a variable-speed flowing state, particles are filtered on line, the temperature is compensated, and the problems of large granularity and water-containing gas in the oil deposited in an oil pipeline in the transformer oil conveying process are solved.

Drawings

The invention will be further explained with reference to the drawings of the embodiments:

FIG. 1 is a flow chart of a prior art transformer oiling process;

fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.

In the figure, 1, a clean oil tank; 2. a screw pump; 3. a first flow meter; 4. static pressure tank hoisting; 5. a second flow meter; 6. an oil conservator; 7. a transformer; 8. a heater; 9. a liquid level sensor; 10. a filter; 11. a reflux branch; 12. a heater output port; 13. and a second branch.

Detailed Description

Example 1

As shown in fig. 2-4, a transformer oil-purifying circulation system is characterized in that: it at least comprises: the device comprises a clean oil tank 1, a screw pump 2, a first flowmeter 3, a static pressure suspension tank 4, a second flowmeter 5, an oil storage cabinet 6, a transformer 7, a heater 8 and a filter 10; the stored oil in the clean oil tank 1 of the oil storage area is communicated with the input port of a filter 10 through a screw pump 2 and a first flowmeter 3 which are connected in series, the stored oil in the clean oil tank 1 is filtered through the filter 10, the oil filtered through the filter 10 is heated to about 80 ℃ through a heater 8, and the oil is input into a transformer 7 through a second flowmeter 5; the transformer 7 is connected with the oil conservator 6 through a pipeline.

Example 2

As shown in fig. 2-4, a transformer oil-purifying circulation system is characterized in that: it at least comprises: the device comprises a clean oil tank 1, a screw pump 2, a first flowmeter 3, a static pressure suspension tank 4, a second flowmeter 5, an oil storage cabinet 6, a transformer 7, a heater 8 and a filter 10; the stored oil in the clean oil tank 1 of the oil storage area is communicated with the input port of a filter 10 through a screw pump 2 and a first flowmeter 3 which are connected in series, the stored oil in the clean oil tank 1 is filtered through the filter 10, the oil filtered through the filter 10 is heated to about 80 ℃ through a heater 8, and the oil is input into a transformer 7 through a second flowmeter 5; the transformer 7 is connected with the oil conservator 6 through a pipeline; the output port of the heater 8 comprises a return branch 11, the output port of the heater 8 is connected with an inlet pipeline valve of the oil purification tank 1 through the return branch 11, and the transformer oil purified which is filtered and heated by the filter 10 and the heater 8 is circulated to the oil purification tank 1.

Example 3

The output port of the heater 8 comprises a return branch 11, the output port of the heater 8 is connected with an inlet pipeline valve of the oil purification tank 1 through the return branch 11, and the transformer oil purified which is filtered and heated by the filter 10 and the heater 8 is circulated to the oil purification tank 1.

The output port of the heater 8 further comprises a second branch 13, the second branch 13 is connected with a pipeline valve of the static pressure hanging tank 4, the static pressure hanging tank 4 is connected with the oil storage cabinet 6 through the pipeline valve, and the output port of the oil storage cabinet 6 is connected with an interface of the transformer 7.

Meanwhile, the static pressure hanging tank 4 is connected with a liquid level sensor 9, and the liquid level sensor 9 gives the liquid level state of the static pressure hanging tank 4.

The utility model discloses well filter 10 chooses for use 1 mu m precision filter.

The utility model discloses for transformer oiling through oil valve door and flowmeter behind the heater in the workshop, transformer oil in the clean oil holding vessel is in the state that the variable speed flows, and online filter particle and compensation temperature have solved the problem that the granularity is big and moisture in the oil of sedimentation in the oil pipe way among the transformer oil transportation process contains gas.

Claims

1. The utility model provides a transformer oil-purifying circulation system which characterized by: it at least comprises: the device comprises a clean oil tank (1), a screw pump (2), a first flowmeter (3), a second flowmeter (5), a transformer (7), a heater (8) and a filter (10); the storage oil of the oil purification tank (1) in the oil storage area is communicated with the input port of the filter (10) through the screw pump (2) and the first flowmeter (3) which are connected in series, the storage oil of the oil purification tank (1) is filtered through the filter (10), and the storage oil is output through the output port of the filter (10); the oil filtered by the filter (10) is heated to about 80 ℃ by the heater (8) and is input to the transformer (7) through the second flowmeter (5).

2. The transformer oil circulation system according to claim 1, wherein: the output port of the heater (8) comprises a backflow branch (11), the output port of the heater (8) is connected with an inlet pipeline valve of the oil purification tank (1) through the backflow branch (11), and the transformer oil purification which is filtered and heated by the filter (10) and the heater (8) is circulated to the oil purification tank (1).

3. The transformer oil circulation system according to claim 1, wherein: the output port of the heater (8) further comprises a second branch (13), the second branch (13) is connected with a pipeline valve of the static pressure hanging tank (4), the static pressure hanging tank (4) is connected with the oil storage cabinet (6) through the pipeline valve, and the output port of the oil storage cabinet (6) is connected with an interface of the transformer (7).

4. The transformer oil circulation system according to claim 3, wherein: the static pressure hanging tank (4) is connected with a liquid level sensor (9), and the liquid level sensor (9) gives a liquid level state of the static pressure hanging tank (4).

5. The transformer oil circulation system according to claim 1, wherein: the filter (10) is a 1-micron precision filter.