CN108806934B - Oil tank and method for manufacturing transformer - Google Patents
Oil tank and method for manufacturing transformer Download PDFInfo
- Publication number
- CN108806934B CN108806934B CN201810612559.8A CN201810612559A CN108806934B CN 108806934 B CN108806934 B CN 108806934B CN 201810612559 A CN201810612559 A CN 201810612559A CN 108806934 B CN108806934 B CN 108806934B
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- oil
- ball valve
- shaped ball
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000006096 absorbing agent Substances 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 152
- 239000010779 crude oil Substances 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses an oil tank and a method for manufacturing a transformer, wherein the oil tank comprises a tank body for storing oil; the upper surface of the tank body is provided with an upper opening connected with the evacuation pipe, and the bottom of the side wall of the tank body is provided with a lower opening connected with the oil path pipe; the upper opening is communicated with the air extractor through an evacuating pipe, an upper sealing connecting device is arranged on the evacuating pipe, and the lower opening is connected with one end of the oil path pipe through a lower sealing connecting device; the top of the tank body is provided with a moisture absorber; the upper sealing connection device comprises an upper tee T-shaped ball valve; the first port of the upper three-way T-shaped ball valve is communicated with the air extractor through the air evacuating pipe, and the second port of the upper three-way T-shaped ball valve is connected with the upper opening through the upper flange; the lower sealing connection device comprises a lower three-way T-shaped ball valve; the first port of the lower three-way T-shaped ball valve is connected with one end of the oil path pipe, and the second port of the lower three-way T-shaped ball valve is connected with the lower opening through a lower flange; and the third port of the upper three-way T-shaped ball valve is connected with the third port of the lower three-way T-shaped ball valve through an oil level display tube.
Description
Technical Field
The invention relates to the technical field of oil immersed transformer production and field maintenance, in particular to an oil tank and a method for manufacturing a transformer.
Background
At present, some oil immersed transformer manufacturers do not have a vacuum sealing oil system (the oil system can ensure the quality of transformer oil, but one-time investment cost for some oil immersed transformer manufacturers is high, special personnel are required to be configured to manage and operate, the use and maintenance cost is high), a simple oil system or an independent transformer oil tank is generally used and contacted with air, so that crude oil or qualified oil stored in the transformer oil tank is polluted by air to cause unqualified transformer oil, and the micro-water content of the transformer oil in the oil tank can be seriously out of standard due to high air humidity in rainy season, so that the withstand voltage of the transformer oil is directly reduced, and serious quality accidents are caused. In order to solve the problems, improve the product quality and reduce the cost, through technological innovation of a technological device and a method, the invention provides the oil tank and the method for manufacturing the transformer, which are particularly important.
Disclosure of Invention
The invention aims to solve the technical problems that: the oil tank and the method for manufacturing the transformer are convenient to use and capable of improving the product quality.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
An oil tank for manufacturing a transformer comprises a tank body (1) for storing oil; an upper opening connected with the evacuation pipe (3) is formed in the upper surface of the tank body (1), and a lower opening connected with the oil pipe (6) is formed in the bottom of the side wall of the tank body (1); the upper opening is communicated with the air extractor through an evacuation pipe (3), an upper sealing connection device is arranged on the evacuation pipe (3), and the lower opening is connected with one end of an oil path pipe (6) through a lower sealing connection device; a moisture absorber (2) is arranged at the top of the tank body (1); wherein:
the upper sealing connection device comprises an upper tee T-shaped ball valve; the first port of the upper three-way T-shaped ball valve is communicated with the air extractor through an air extracting pipe (3), and the second port of the upper three-way T-shaped ball valve is connected with the upper opening through an upper flange;
the lower sealing connection device comprises a lower three-way T-shaped ball valve; the first port of the lower three-way T-shaped ball valve is connected with one end of an oil way pipe (6), and the second port of the lower three-way T-shaped ball valve is connected with the lower opening through a lower flange; the third port of the upper three-way T-shaped ball valve is connected with the third port of the lower three-way T-shaped ball valve through an oil level display tube (5); the oil level display tube (5) is made of transparent materials.
Further: and a pressure gauge is arranged at the second port of the upper three-way T-shaped ball valve.
Further: the moisture absorber (2) comprises a breather, the breather is communicated with the tank body (1) through an air pipe, and an air flow valve is arranged on the air pipe.
A crude oil injection method for an oil tank for transformer manufacture comprises the following steps:
step 101, connecting the components according to the assembly relation of claim 3;
102, closing all ports of an upper tee T-shaped ball valve and a lower tee T-shaped ball valve;
step 103, when crude oil is injected into the tank body (1) from the outside, opening three ports of an upper tee T-shaped ball valve, starting an air extractor, and pumping the air pressure in the tank body (1) to minus 0.08MPa to minus 0.02MPa;
step 104, opening three ports of the lower three-way T-shaped ball valve, and at the moment, injecting crude oil into the tank body (1) through the oil way pipe (6);
Step 105, observing the liquid level of crude oil in the tank body (1) through an oil level display tube (5), closing a first port of a lower three-way T-shaped ball valve when the liquid level rises to a preset height, and then removing an oil path tube (6);
step 106, closing a first port of the upper three-way T-shaped ball valve, and then dismantling the air extractor;
A crude oil output method of an oil tank for transformer manufacturing comprises the following steps:
step 201, connecting the components according to the assembly relationship of claim 3;
202, when crude oil is output to a transformer by using a tank body (1), connecting a vacuum oil filter with a first port of a lower three-way T-shaped ball valve through an oil way pipe (6); then starting the vacuum oil filter;
step 203, opening three ports of a lower three-way T-shaped ball valve, and supplying crude oil in a tank body (1) to a vacuum oil filter through an oil way pipe (6);
and 204, observing the liquid level of crude oil in the tank body (1) through an oil level display tube (5), closing a first port of the lower three-way T-shaped ball valve when the liquid level is reduced to a preset level or oil for the transformer is finished, and then removing the oil way tube (6).
A crude oil sampling method of an oil tank for transformer manufacturing comprises the following steps:
Step 301, removing the oil path pipe (6) and connecting other parts according to the assembly relation of claim 3;
step 302, closing three ports of an upper three-way T-shaped ball valve and three ports of a lower three-way T-shaped ball valve;
step 303, opening a first port and a third port of a lower three-way T-shaped ball valve;
step 304, taking out crude oil in the oil level display tube (5) from a third port of the lower three-way T-shaped ball valve;
step 305, after the sampling is completed, closing a third port of the lower three-way T-shaped ball valve; opening a second port of the lower three-way T-shaped ball valve; and opening the second port and the third port of the upper three-way T-shaped ball valve.
The invention has the advantages and positive effects that:
through adopting above-mentioned technical scheme, when current independent transformer tank advances oil, directly open the oil cap, open area is great, and direct and air contact, during the oil production, through the moisture absorber with air contact, transformer crude oil or qualified oil of storage will receive workshop air pollution after a period, leads to oily acetylene inequality, and every year summer, because air humidity is showing and is increasing, makes little water content greatly increased in the oil, seriously influences product quality and delivery date.
This patent is in order to solve the above-mentioned problem of independent transformer tank oil storage, research in the technology to according to the local condition, adopt negative pressure seal technology when conventional independent transformer tank stores transformer oil, need show jar internal pressure in real time and satisfy the oil tank oil level and show simultaneously, control process quality, can very conveniently get the oil appearance to the oil tank every day, do not influence the negative pressure and the leakproofness of transformer oil tank simultaneously. This patent has guaranteed transformer tank oil storage quality, has improved production efficiency, has reduced manufacturing cost.
Drawings
FIG. 1 is a schematic view of the structure of a preferred embodiment of the present invention
FIG. 2 is a schematic view of a seal attachment in accordance with a preferred embodiment of the present invention;
Wherein: 1. a tank body; 2. a moisture absorber; 3. an evacuation tube; 4. sealing the connecting device; 5. an oil level display tube; 6. an oil path pipe; 7. a quick connector; 8. three-way T-shaped ball valve; 9. a flange; 10. a pressure gauge.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1 and 2, an oil tank for manufacturing a transformer includes a tank body 1 for storing oil, and two sealing connection devices 4; an upper opening connected with the evacuation pipe 3 is formed on the upper surface of the tank body 1, and a lower opening connected with the oil pipe 6 is formed at the bottom of the side wall of the tank body 1; the upper opening is communicated with the air extractor through an evacuation pipe 3, an upper sealing connecting device is arranged on the evacuation pipe 3, and the lower opening is connected with one end of an oil path pipe 6 through a lower sealing connecting device; a moisture absorber 2 is arranged at the top of the tank body 1; wherein:
The upper sealing connection device comprises an upper tee T-shaped ball valve; the first port of the upper three-way T-shaped ball valve is communicated with the air extractor through the air extracting pipe 3, and the second port of the upper three-way T-shaped ball valve is connected with the upper opening through an upper flange;
the lower sealing connection device comprises a lower three-way T-shaped ball valve; the first port of the lower three-way T-shaped ball valve is connected with one end of the oil way pipe 6, and the second port of the lower three-way T-shaped ball valve is connected with the lower opening through a lower flange; the third port of the upper three-way T-shaped ball valve is connected with the third port of the lower three-way T-shaped ball valve through an oil level display pipe 5; the oil level display tube 5 is made of transparent material.
A pressure gauge 10 is mounted at the second port of the upper three-way T-ball valve.
The moisture absorber 2 comprises a breather, the breather is communicated with the tank body 1 through an air pipe, and an air flow valve is arranged on the air pipe.
A crude oil injection method for an oil tank for transformer manufacture comprises the following steps:
step 101, connecting the components according to the assembly relation of claim 3;
102, closing all ports of an upper tee T-shaped ball valve and a lower tee T-shaped ball valve;
Step 103, when crude oil is injected into the tank body 1 from the outside, opening three ports of an upper tee T-shaped ball valve, starting an air extractor, and pumping the air pressure in the tank body 1 to minus 0.08MPa to minus 0.02MPa;
Step 104, opening three ports of the lower three-way T-shaped ball valve, and at the moment, injecting crude oil into the tank body 1 through the oil way pipe 6;
Step 105, observing the liquid level of crude oil in the tank body 1 through the oil level display tube 5, closing a first port of the lower three-way T-shaped ball valve when the liquid level rises to a preset height, and then removing the oil path tube 6;
step 106, closing a first port of the upper three-way T-shaped ball valve, and then dismantling the air extractor;
A crude oil output method of an oil tank for transformer manufacturing comprises the following steps:
step 201, connecting the components according to the assembly relationship of claim 3;
Step 202, when crude oil is output to a transformer by using a tank body 1, connecting a vacuum oil filter with a first port of a lower three-way T-shaped ball valve through an oil way pipe 6; then starting the vacuum oil filter;
Step 203, opening three ports of a lower three-way T-shaped ball valve, and supplying crude oil in the tank body 1 to a vacuum oil filter through an oil way pipe 6;
and 204, observing the liquid level of the crude oil in the tank body 1 through the oil level display tube 5, closing a first port of the lower three-way T-shaped ball valve when the liquid level is reduced to a preset level or oil for the transformer is finished, and then removing the oil way tube 6.
A crude oil sampling method of an oil tank for transformer manufacturing comprises the following steps:
Step 301, removing the oil path pipe 6, and connecting other components according to the assembly relation of claim 3;
step 302, closing three ports of an upper three-way T-shaped ball valve and three ports of a lower three-way T-shaped ball valve;
step 303, opening a first port and a third port of a lower three-way T-shaped ball valve;
step 304, taking out crude oil in the oil level display tube 5 from a third port of the lower three-way T-shaped ball valve;
step 305, after the sampling is completed, closing a third port of the lower three-way T-shaped ball valve; opening a second port of the lower three-way T-shaped ball valve; and opening the second port and the third port of the upper three-way T-shaped ball valve.
The oil tank for manufacturing the transformer in the preferred embodiment mainly comprises a tank body 1, a moisture absorber 2, an evacuating pipe 3, two oil tank sealing and connecting devices 4, an oil level display pipe 5 and an oil path pipe 6, wherein the oil tank sealing and connecting devices 4 comprise a quick connector 7, a three-way T-shaped ball valve 8, a flange 9 and a pressure gauge 10.
When the oil tank is used, the two flanges 9 are respectively connected with the oil tank evacuating flange and the oil tank discharging flange, the upper tee T-shaped ball valve vertical direction interface (third port) is connected and sealed by a steel wire transparent pipe (oil level display pipe), the tee T-shaped ball valve vertical direction interface connected with the oil tank evacuating flange at the upper part of the oil tank 1 is connected with the evacuating pipe 3 (other conditions are not connected), and the tee T-shaped ball valve vertical direction interface connected with the oil tank discharging flange at the lower part of the oil tank is connected with the oil pipe 6 (when oil is not fed in or discharged out) when the oil tank is fed in or discharged out.
After the connection of the requirements is completed, all valves are completely closed; when the oil tank needs to be externally connected with crude oil, the evacuating pipeline and the oil conveying pipeline are respectively connected according to the description, the tee T-shaped ball valve connected with the flange at the upper part of the oil tank is rotated to enable the upper tee T-shaped ball valve to be completely conducted, the vacuum unit is started to evacuate the oil tank to the negative pressure required by the process, then the tee T-shaped ball valve connected with the flange at the lower part of the oil tank is rotated to enable the lower tee T-shaped ball valve to be completely conducted, transformer oil is input into the oil tank, when the transparent hose shows that the oil level is full or the oil conveying is finished, the tee T-shaped ball valve connected with the flange at the lower part of the oil tank is closed, the tee T-shaped ball valve is rotated to enable the quick connector 7 to be conducted with the flange 9, the tee T-shaped ball valve connected with the flange at the upper part of the oil tank is closed, and the tee T-shaped ball valve is rotated to enable the quick connector 7 to be conducted with the flange 9 to be disconnected, so that the transformer oil can be hermetically stored according to the negative pressure required by the process. When transformer oil is needed to be used in workshop production, an oil way pipe of a three-way T-shaped ball valve 8, which is connected with the lower part of an oil tank, of a vacuum oil filter is connected with a quick connector 7, after the vacuum oil filter is started, the lower three-way T-shaped ball valve is rotated to enable the lower three-way T-shaped ball valve to be completely conducted, transformer oil is output outwards, the oil level and the pressure of the oil tank can be observed in real time through the system, the lower three-way T-shaped ball valve is only required to be completely closed after oil use is finished, the lower three-way T-shaped ball valve is rotated to enable the lower three-way T-shaped ball valve to be communicated with a flange 9, and then the oil way pipe is removed. When the stored crude oil needs to be sampled for testing, the two tee T-shaped ball valves connected with the upper part and the lower part of the oil tank are firstly closed completely, the lower tee T-shaped ball valve connected with the lower part of the oil tank is rotated to conduct the lower tee T-shaped ball valve with the oil path pipe 6, oil in the oil level display pipe is taken out for testing, after the oil sampling is finished, the lower tee T-shaped ball valve connected with the lower part of the oil tank is closed completely, the upper tee T-shaped ball valve connected with the upper part of the oil tank is adjusted to conduct the upper tee T-shaped ball valve with the flange 9, and finally the lower tee T-shaped ball valve connected with the lower part of the oil tank is adjusted to conduct the lower tee T-shaped ball valve with the flange 9, so that the crude oil can be stored in a normal negative pressure sealing manner and the oil level is displayed.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. An application method of an oil tank for manufacturing a transformer comprises a tank body (1) for storing oil; the method is characterized in that: an upper opening connected with the evacuation pipe (3) is formed in the upper surface of the tank body (1), and a lower opening connected with the oil pipe (6) is formed in the bottom of the side wall of the tank body (1); the upper opening is communicated with the air extractor through an evacuation pipe (3), an upper sealing connection device is arranged on the evacuation pipe (3), and the lower opening is connected with one end of an oil path pipe (6) through a lower sealing connection device; a moisture absorber (2) is arranged at the top of the tank body (1); wherein:
The upper sealing connection device comprises an upper tee T-shaped ball valve; the first port of the upper three-way T-shaped ball valve is communicated with the air extractor through an air extracting pipe (3), and the second port of the upper three-way T-shaped ball valve is connected with the upper opening through an upper flange;
The lower sealing connection device comprises a lower three-way T-shaped ball valve; the first port of the lower three-way T-shaped ball valve is connected with one end of an oil way pipe (6), and the second port of the lower three-way T-shaped ball valve is connected with the lower opening through a lower flange; the third port of the upper three-way T-shaped ball valve is connected with the third port of the lower three-way T-shaped ball valve through an oil level display tube (5); the oil level display tube (5) is made of transparent materials;
the crude oil injection method for the oil tank for manufacturing the transformer comprises the following steps:
step 101, assembling all the components;
102, closing all ports of an upper tee T-shaped ball valve and a lower tee T-shaped ball valve;
Step 103, when crude oil is injected into the tank body (1) from the outside, opening three ports of an upper tee T-shaped ball valve, starting an air extractor, and pumping the air pressure in the tank body (1) to minus 0.08MPa to minus 0.02MPa;
Step 104, opening three ports of the lower three-way T-shaped ball valve, and at the moment, injecting crude oil into the tank body (1) through the oil way pipe (6);
Step 105, observing the liquid level of crude oil in the tank body (1) through an oil level display tube (5), closing a first port of a lower three-way T-shaped ball valve when the liquid level rises to a preset height, and then removing an oil path tube (6);
step 106, closing a first port of the upper three-way T-shaped ball valve, and then dismantling the air extractor;
the crude oil output method of the oil tank for manufacturing the transformer comprises the following steps:
step 201, assembling various components;
202, when crude oil is output to a transformer by using a tank body (1), connecting a vacuum oil filter with a first port of a lower three-way T-shaped ball valve through an oil way pipe (6); then starting the vacuum oil filter;
Step 203, opening three ports of a lower tee T-shaped ball valve, and supplying crude oil in a tank body (1) to a vacuum oil filter through an oil path pipe (6);
204, observing the liquid level of crude oil in the tank body (1) through an oil level display tube (5), closing a first port of a lower three-way T-shaped ball valve when the liquid level is reduced to a preset level or oil for a transformer is finished, and then removing an oil path tube (6);
the crude oil sampling method of the oil tank for manufacturing the transformer comprises the following steps:
step 301, removing the oil path pipe (6) and assembling other parts;
step 302, closing three ports of an upper three-way T-shaped ball valve and three ports of a lower three-way T-shaped ball valve;
step 303, opening a first port and a third port of a lower three-way T-shaped ball valve;
step 304, taking out crude oil in the oil level display tube (5) from a third port of the lower three-way T-shaped ball valve;
step 305, after the sampling is completed, closing a third port of the lower three-way T-shaped ball valve; opening a second port of the lower three-way T-shaped ball valve; and opening the second port and the third port of the upper three-way T-shaped ball valve.
2. The method for applying the oil tank for manufacturing the transformer according to claim 1, wherein: and a pressure gauge is arranged at the second port of the upper three-way T-shaped ball valve.
3. The application method of the oil tank for manufacturing the transformer according to claim 1 or 2, characterized in that: the moisture absorber (2) comprises a breather, the breather is communicated with the tank body (1) through an air pipe, and an air flow valve is arranged on the air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612559.8A CN108806934B (en) | 2018-06-14 | 2018-06-14 | Oil tank and method for manufacturing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612559.8A CN108806934B (en) | 2018-06-14 | 2018-06-14 | Oil tank and method for manufacturing transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108806934A CN108806934A (en) | 2018-11-13 |
| CN108806934B true CN108806934B (en) | 2024-05-14 |
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ID=64085908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810612559.8A Active CN108806934B (en) | 2018-06-14 | 2018-06-14 | Oil tank and method for manufacturing transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108806934B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100711303B1 (en) * | 2006-09-27 | 2007-05-02 | 국제전기 주식회사 | A pole transformer or pad transformer apparatus pouring into oil in vacuum with a desiccator in vacuum and dryness method |
| CN201437451U (en) * | 2009-07-06 | 2010-04-14 | 保定变压器配件有限公司 | Horizontal-type vacuum capsule oil-storage tank |
| JP2011142263A (en) * | 2010-01-08 | 2011-07-21 | Mitsubishi Electric Corp | Valve for oil-filled transformer, and the oil-filled transformer |
| CN203013456U (en) * | 2012-12-13 | 2013-06-19 | 天威保变(合肥)变压器有限公司 | Oil tank for storing transformer oil |
| CN207042062U (en) * | 2017-08-01 | 2018-02-27 | 上海铁路局上海机车检修段 | High-power electric locomotive transformer oil processing integrating device |
| CN208385160U (en) * | 2018-06-14 | 2019-01-15 | 天津市特变电工变压器有限公司 | A kind of transformer manufacturing oil tank |
-
2018
- 2018-06-14 CN CN201810612559.8A patent/CN108806934B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100711303B1 (en) * | 2006-09-27 | 2007-05-02 | 국제전기 주식회사 | A pole transformer or pad transformer apparatus pouring into oil in vacuum with a desiccator in vacuum and dryness method |
| CN201437451U (en) * | 2009-07-06 | 2010-04-14 | 保定变压器配件有限公司 | Horizontal-type vacuum capsule oil-storage tank |
| JP2011142263A (en) * | 2010-01-08 | 2011-07-21 | Mitsubishi Electric Corp | Valve for oil-filled transformer, and the oil-filled transformer |
| CN203013456U (en) * | 2012-12-13 | 2013-06-19 | 天威保变(合肥)变压器有限公司 | Oil tank for storing transformer oil |
| CN207042062U (en) * | 2017-08-01 | 2018-02-27 | 上海铁路局上海机车检修段 | High-power electric locomotive transformer oil processing integrating device |
| CN208385160U (en) * | 2018-06-14 | 2019-01-15 | 天津市特变电工变压器有限公司 | A kind of transformer manufacturing oil tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108806934A (en) | 2018-11-13 |
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