CN115683734A - Sealed oil taking gun for 220 KV oil-immersed transformer - Google Patents
Sealed oil taking gun for 220 KV oil-immersed transformer Download PDFInfo
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- CN115683734A CN115683734A CN202211258201.2A CN202211258201A CN115683734A CN 115683734 A CN115683734 A CN 115683734A CN 202211258201 A CN202211258201 A CN 202211258201A CN 115683734 A CN115683734 A CN 115683734A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a sealing oil taking gun for a 220 KV oil-immersed transformer, which belongs to the technical field of oil taking of the oil-immersed transformer and comprises an oil taking gun body, wherein the head of the oil taking gun body is provided with an inner hexagonal screw hole, the tail end of the inner hexagonal screw hole is provided with a rubber pad coaxial with the inner hexagonal screw hole, the inner hexagonal screw hole is used for being matched with a hexagonal bolt on an oil discharging nozzle of the transformer, meanwhile, the inner hexagonal screw hole is communicated with a main pipeline positioned inside the oil taking gun body, the main pipeline is connected with an oil taking pipeline and a waste oil pipeline, a main pipeline valve is arranged at the joint of the oil taking pipeline and the main pipeline, and a waste oil pipeline valve is arranged at the joint of the waste oil pipeline and the main pipeline; the oil taking injector is connected with the oil taking pipeline through an oil taking hose, and an oil taking three-way valve is arranged on the oil taking hose; the waste oil recovery bottle is connected with a waste oil pipeline. This get oil rifle can be collected the oil appearance of transformer under the totally enclosed state, discharges waste oil earlier and removes the bubble side by side when getting oil, guarantees to get the oil appearance that the oil syringe got and is effective oil appearance.
Description
Technical Field
The invention belongs to the technical field of oil extraction of oil immersed transformers, and particularly relates to a sealed oil extraction gun for a 220 KV oil immersed transformer.
Background
According to the regulation requirements of GB/T14542-2017 guide rules for maintaining and managing transformer oil and DL/T722-2014 guide rules for analyzing and judging dissolved gas in transformer oil, the oil-immersed power transformer needs to carry out sampling work regularly, carry out insulating oil chromatography and routine test analysis, and judge whether the transformer is abnormal or not according to the test result. According to the regulation requirements of GB/T7597-2007 method for sampling oil of power transformers and steam turbines, the oil sample is guaranteed not to be polluted as much as possible during sampling, test data are accurate and effective, and the operation condition of the transformer body can be truly reflected. However, in the process of sampling oil on the 220 kv oil-immersed transformer, the worker mostly adopts an open type mode because of no proper tool, and the oil bottle and the oil-taking port are exposed in the air during sampling, so that dust prevention and moisture prevention cannot be realized.
Disclosure of Invention
In view of this, the invention aims to provide a sealed oil taking gun for a 220 kv oil-immersed transformer, which is developed in a non-fully-sealed manner in the insulating oil taking process of the existing 220 kv oil-immersed transformer, and the oil bottle and the oil outlet of the transformer are exposed in the air, so that moisture and impurities in the air are easily mixed into the oil bottle, and the insulating oil is inaccurate in result in the detection process, and misjudgment and misconclusion are easily caused.
The technical scheme adopted by the invention for realizing the purpose is as follows: the sealed oil gun of getting of 220 kilovolt oil-immersed transformer is including getting the oil gun rifle body, its characterized in that: the oil extraction gun further comprises a main pipeline, an oil extraction pipeline, a waste oil pipeline, an oil extraction injector, an oil extraction three-way valve, an oil extraction hose and a waste oil recovery bottle, wherein the main pipeline is arranged inside the gun body of the oil extraction gun; the head of the oil taking gun body is provided with an inner hexagonal screw hole, the tail end of the inner hexagonal screw hole is provided with a rubber gasket coaxial with the inner hexagonal screw hole, the inner hexagonal screw hole is used for being matched with a hexagonal bolt on a transformer oil drain nozzle, and meanwhile, the inner hexagonal screw hole is communicated with a main pipeline; the oil taking pipeline and the waste oil pipeline are respectively connected to the main pipeline, a main pipeline valve is installed at the joint of the oil taking pipeline and the main pipeline, and a waste oil pipeline valve is installed at the joint of the waste oil pipeline and the main pipeline; the oil taking injector is connected with the oil taking pipeline through an oil taking hose, and an oil taking three-way valve is arranged on the oil taking hose; and the waste oil recovery bottle is connected with a waste oil pipeline.
Further, the rubber mat is a sealing rubber mat.
Furthermore, the main pipe valve is a rotary valve and is used for switching insulating oil to enter a waste oil pipeline or an oil taking pipeline.
Further, the oil taking gun body is made of white steel.
Furthermore, the main pipeline, the waste oil pipeline and the oil taking pipeline are all PVC pipes.
Further, the main pipeline, the waste oil pipeline and the oil extraction pipeline are all PVE pipes.
Further, the oil extraction syringe is a glass syringe.
Further, the waste oil recovery bottle is a glass flask.
Through the design scheme, the invention can bring the following beneficial effects: the sealing oil-taking gun for the 220 KV oil-immersed transformer provided by the invention has the advantages of simple structure, rapidness in installation, convenience in operation and good sealing property, can be used for collecting oil samples of the transformer in a fully sealed state, removing invalid oil samples at the front end of an oil discharge nozzle of the transformer, ensuring that valid oil samples are collected, removing influences of factors such as bubbles and air moisture, and ensuring that the collected oil samples can truly react with the internal state of equipment.
Drawings
Fig. 1 is a schematic structural view of a sealing oil-extracting gun for a 220 kv oil-immersed transformer according to the present invention.
In the figure: 1-inner hexagonal screw hole, 2-rubber pad, 3-main pipe valve, 4-oil taking gun body, 5-waste oil pipeline valve, 6-waste oil pipeline, 7-main pipeline, 8-oil taking pipeline, 9-oil taking injector, 10-oil taking three-way valve, 11-oil taking hose and 12-waste oil recovery bottle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limiting the present invention.
As shown in fig. 1, a sealed oil-taking gun for a 220 kv oil-immersed transformer comprises an oil-taking gun body 4, and further comprises a main pipeline 7, an oil-taking pipeline 8, a waste oil pipeline 6, an oil-taking injector 9, an oil-taking three-way valve 10, an oil-taking hose 11 and a waste oil recovery bottle 12, wherein the main pipeline 7 is arranged inside the oil-taking gun body 4; the head of the oil taking gun body 4 is provided with an inner hexagonal screw hole 1, the tail end of the inner hexagonal screw hole 1 is provided with a rubber gasket 2 coaxial with the inner hexagonal screw hole 1, the inner hexagonal screw hole 1 is used for being matched with a hexagonal bolt on a transformer oil drain nozzle, meanwhile, the inner hexagonal screw hole 1 is communicated with a main pipeline 7, when the oil taking gun works, the oil taking gun is rotated, the oil taking gun drives the hexagonal bolt on the transformer oil drain nozzle to rotate through the inner hexagonal screw hole 1, and therefore the transformer oil drain nozzle is opened, and insulating oil enters the main pipeline 7; the oil taking pipeline 8 and the waste oil pipeline 6 are respectively connected to a main pipeline 7, a main pipeline valve 3 is installed at the connection position of the oil taking pipeline 8 and the main pipeline 7, and a waste oil pipeline valve 5 is installed at the connection position of the waste oil pipeline 6 and the main pipeline 7; the oil taking injector 9 is connected with the oil taking pipeline 8 through an oil taking hose 11, and an oil taking three-way valve 10 is installed on the oil taking hose 11; the waste oil recovery bottle 12 is connected with the waste oil pipeline 6.
The transformer oil drain nozzle installed at the transformer oil drain port belongs to the prior art and is not described in detail herein, the transformer oil drain nozzle is communicated with the main pipeline 7 after extending into the oil taking gun body 4 and is hermetically connected with the oil taking gun body 4 through the rubber mat 2; the material of the oil gun body 4 is white steel, so that the strength is ensured to meet the working requirement; the inner hexagonal screw hole 1 is a part connected with the transformer oil drain nozzle, and a hexagonal bolt on the transformer oil drain nozzle can be rotated by adopting an inner hexagonal structure, so that the transformer oil drain nozzle is opened, and insulating oil enters a main pipeline 7; the rubber pad 2 is a sealing rubber pad, so that the requirement that the sealing is good after an oil nozzle of the transformer is inserted into the oil taking gun is met; the main pipe valve 3 is a rotary valve and is used as a control valve of an oil way of a main pipeline 7, and insulating oil is switched to enter a waste oil pipeline 6 or an oil taking pipeline 8; the waste oil pipeline valve 5 is a valve for controlling the waste oil pipeline 6 to be opened/closed and is normally in a closed state; the main pipeline 7, the waste oil pipeline 6 and the oil taking pipeline 8 are all PVC pipes or PVE pipes, so that the oil sample is prevented from contacting with metal to cause dirt; the oil taking hose 11 is used for connecting the oil taking pipeline 8, the oil taking three-way valve 10 and the oil taking injector 9; the oil taking three-way valve 10 is used for discharging gas in the oil taking pipeline 8 and ensuring that an oil sample of the oil taking injector 9 has no bubbles; the oil extraction injector 9 is a collection and transportation tool for sealed oil extraction and is responsible for extracting and collecting effective oil samples of the transformer; waste oil recovery bottle 12 is the glass flask, is responsible for collecting the initial waste oil when getting oil, guarantees the extraction of effective oil appearance.
When the oil taking gun works, the oil taking gun is in sealing connection with the transformer oil taking nozzle through the inner hexagonal screw hole 1 and the rubber gasket 2, the hexagon bolt of the transformer oil taking nozzle is opened by rotating the oil taking gun, insulating oil enters the oil taking gun, the main pipe valve 3 seals the oil taking pipeline 8, and the waste oil pipeline valve 5 is in a closed state. Then connecting an oil taking hose 11, an oil taking injector 9, an oil taking three-way valve 10 and a waste oil recovery bottle 12, firstly opening a waste oil pipeline valve 5, removing invalid oil samples in an oil outlet pipeline of the transformer and near a transformer box body, and collecting the invalid oil samples through the waste oil recovery bottle 12; secondly, closing the waste oil pipeline valve 5, opening the main pipe valve 3, enabling the effective oil sample to flow into the oil taking pipeline 8, removing bubbles in the oil sample through the oil taking three-way valve 10, rotating the switch of the oil taking three-way valve 10, injecting the effective oil sample into the oil taking injector 9, and after oil taking is finished, sealing the oil taking injector 9 by using a rubber cap; and finally, closing the main pipe valve 3, closing the hexagon bolt on the transformer oil taking nozzle by rotating the oil taking gun, separating the oil taking gun from the transformer oil taking nozzle, recovering the state of the equipment before oil taking, and finishing oil taking.
In summary, the sealing oil-taking gun for the 220 KV oil-immersed transformer provided by the invention has the advantages of simple structure, rapidness in installation, convenience in operation and good sealing performance, can effectively extract the insulating oil of the oil-immersed transformer, can ensure good sealing performance, and avoids the phenomenon that air or moisture enters the oil-taking injector 9 in the extraction process to cause inaccurate detection data of the insulating oil. After the oil taking gun is used, the accuracy and the tightness of insulating oil sampling are improved to a great extent, the labor intensity of operating personnel is reduced, the operation is convenient, the time is saved, and the smooth operation of the insulating oil detection work of the oil immersed transformer is ensured.
Claims (8)
1. The utility model provides a sealed oil gun of getting for 220 kilovolt oil-immersed transformer, includes and gets oil gun rifle body (4), its characterized in that: the oil extraction gun is characterized by further comprising a main pipeline (7), an oil extraction pipeline (8), a waste oil pipeline (6), an oil extraction injector (9), an oil extraction three-way valve (10), an oil extraction hose (11) and a waste oil recovery bottle (12), wherein the main pipeline (7) is arranged inside the oil extraction gun body (4); the head of the oil taking gun body (4) is provided with an inner hexagonal screw hole (1), the tail end of the inner hexagonal screw hole (1) is provided with a rubber gasket (2) coaxial with the inner hexagonal screw hole, the inner hexagonal screw hole (1) is used for being matched with a hexagonal bolt on a transformer oil drain nozzle, and meanwhile, the inner hexagonal screw hole (1) is communicated with a main pipeline (7), when the oil taking gun works, the oil taking gun is rotated and drives the hexagonal bolt on the transformer oil drain nozzle to rotate through the inner hexagonal screw hole (1), so that the transformer oil drain nozzle is opened, and insulating oil enters the main pipeline (7); the oil taking pipeline (8) and the waste oil pipeline (6) are respectively connected to the main pipeline (7), a main pipeline valve (3) is installed at the connection part of the oil taking pipeline (8) and the main pipeline (7), and a waste oil pipeline valve (5) is installed at the connection part of the waste oil pipeline (6) and the main pipeline (7); the oil taking injector (9) is connected with the oil taking pipeline (8) through an oil taking hose (11), and an oil taking three-way valve (10) is installed on the oil taking hose (11); and the waste oil recovery bottle (12) is connected with the waste oil pipeline (6).
2. The sealed oil extraction gun for the 220 kV oil-filled transformer according to claim 1, wherein: the rubber pad (2) is a sealing rubber pad.
3. The sealed oil-extracting gun for the 220 KV oil-filled transformer according to claim 1, wherein: the main pipe valve (3) is a rotary valve and is used for switching insulating oil to enter the waste oil pipeline (6) or the oil taking pipeline (8).
4. The sealed oil extraction gun for the 220 kV oil-filled transformer according to claim 1, wherein: the oil gun body (4) is made of white steel.
5. The sealed oil-extracting gun for the 220 KV oil-filled transformer according to claim 1, wherein: the main pipeline (7), the waste oil pipeline (6) and the oil taking pipeline (8) are all PVC pipes.
6. The sealed oil extraction gun for the 220 kV oil-filled transformer according to claim 1, wherein: the main pipeline (7), the waste oil pipeline (6) and the oil taking pipeline (8) are all PVE pipes.
7. The sealed oil extraction gun for the 220 kV oil-filled transformer according to claim 1, wherein: the oil taking injector (9) is a glass injector.
8. The sealed oil-extracting gun for the 220 KV oil-filled transformer according to claim 1, wherein: the waste oil recovery bottle (12) is a glass flask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211258201.2A CN115683734A (en) | 2022-10-14 | 2022-10-14 | Sealed oil taking gun for 220 KV oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211258201.2A CN115683734A (en) | 2022-10-14 | 2022-10-14 | Sealed oil taking gun for 220 KV oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115683734A true CN115683734A (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211258201.2A Pending CN115683734A (en) | 2022-10-14 | 2022-10-14 | Sealed oil taking gun for 220 KV oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115683734A (en) |
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2022
- 2022-10-14 CN CN202211258201.2A patent/CN115683734A/en active Pending
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