CN216386438U - Totally enclosed oil taking device for transformer - Google Patents

Totally enclosed oil taking device for transformer Download PDF

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Publication number
CN216386438U
CN216386438U CN202121885216.2U CN202121885216U CN216386438U CN 216386438 U CN216386438 U CN 216386438U CN 202121885216 U CN202121885216 U CN 202121885216U CN 216386438 U CN216386438 U CN 216386438U
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CN
China
Prior art keywords
oil
transformer
valve
way valve
taking
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Active
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CN202121885216.2U
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Chinese (zh)
Inventor
顿超
孙文鹏
姚来迪
马小光
叶风彩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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Priority to CN202121885216.2U priority Critical patent/CN216386438U/en
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Publication of CN216386438U publication Critical patent/CN216386438U/en
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Abstract

The utility model provides a fully-sealed oil taking device for a transformer, which relates to the technical field of transformer maintenance and comprises the following components: the device comprises a switching valve, a sampling platform and an oil stain bucket; the switching valve comprises a switching joint and a three-way valve; the two ends of the conversion interface are both provided with open cavities, one end of the interface is connected with the three-way valve, and the other end of the conversion interface is connected with the transformer oil sample; the sampling platform comprises a ball valve, an oil taking valve, a mesh clapboard and a hand hole; the oil taking ball valve is positioned on the side surface of the sampling platform and is connected with the three-way valve; the oil stain bucket is connected with the three-way valve. The device provided by the utility model can reduce the waste of oil extraction and improve the accuracy of the oil sample.

Description

Totally enclosed oil taking device for transformer
Technical Field
The utility model relates to the technical field of transformer maintenance, in particular to a fully-sealed oil taking device for a transformer.
Background
At present, large transformers are mostly in an oil immersion type, the content of water, gas and impurities in transformer oil and the granularity of oil bodies have important influence on the performance of the transformers, and regular sampling is needed for detection. In the process of carrying out chromatographic analysis on the insulating oil, taking out the insulating oil sample is a very basic but very important work, and whether the taken out insulating oil sample is real and reliable or not directly influences the accuracy of a chromatographic analysis result.
At present, for sampling transformer insulating oil, an oil discharge rubber tube and an injector are sequentially connected to an oil taking valve of a transformer according to GB/T7597 2007 electric power oil (transformer oil and turbine oil) sampling method, oil is injected into the injector by using the pressure of the transformer, the injector is flushed for 2-3 times, the injector is emptied, and the oil flows into the injector by using the pressure of the oil to finish sampling; when the sampling bottle is a non-closed container such as a wide-mouth bottle, a self-flowing mode is generally adopted, the sampling bottle is placed below an oil outlet of an oil discharge rubber tube, a transformer oil sample valve is opened, and then transformer oil flows into the sampling bottle.
The existing sampling method has the following defects:
1. the oil sample is taken in a self-flowing mode, the transformer oil is contacted with air for a long time, and air and water are mixed into the oil sample, so that the water content and the gas content of important indexes of the transformer oil assay exceed the standard, and the test result is inaccurate;
2. because the oil taking valve of the transformer has different forms and specifications, in daily oil taking, an oil discharge rubber tube is usually directly sleeved at the oil taking port of the oil taking valve, the rubber tube is manually pinched to prevent gas from mixing into an oil sample, but the sealing cannot be finished in practice, and the problems of gas escape or air entering in the oil exist;
3. when oil is taken, about 2L of unnecessary dirty oil needs to be discharged, generally, the step depends on the experience of workers, the accurate amount of dirty oil cannot be discharged, the former can collect polluted oil samples when the whole dirty oil is not discharged or the discharged amount is large, and the latter can cause waste;
4. because the oil sample container is exposed to the environment when oil is taken, the environment has great influence on the accuracy of the oil sample;
5. in the oil extraction process, one person controls the opening and closing of the oil sample valve, and the other person controls the oil extraction, so that at least 2 workers are needed for the whole oil extraction.
Therefore, it is necessary to develop a fully-sealed oil sampling device for a transformer to improve the accuracy of an oil sample.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a fully sealed oil sampling device for a transformer, which can reduce oil sampling waste and improve oil sampling accuracy.
The utility model provides a transformer full-sealed oil extraction device, which comprises: the device comprises a switching valve, a sampling platform and an oil stain bucket;
the switching valve comprises a switching joint and a three-way valve;
the interfaces at two ends of the adapter joint are both open cavities, one end of the interface of the adapter joint is connected with a three-way valve, and the other end of the adapter joint is connected with a transformer oil sample;
the sampling platform comprises an oil taking ball valve, an oil taking valve, a mesh clapboard and a hand hole;
the oil taking ball valve is positioned on the side surface of the sampling platform and is connected with the three-way valve;
the oil stain bucket is connected with the three-way valve.
The embodiment of the utility model has the following beneficial effects: the utility model provides a transformer full-sealed oil extraction device, which comprises: the device comprises a switching valve, a sampling platform and an oil stain bucket; the switching valve comprises a switching joint and a three-way valve; the two ends of the conversion interface are both provided with open cavities, one end of the interface is connected with the three-way valve, and the other end of the conversion interface is connected with the transformer oil sample; the sampling platform comprises a ball valve, an oil taking valve, a mesh clapboard and a hand hole; the oil taking ball valve is positioned on the side surface of the sampling platform and is connected with the three-way valve; the oil stain bucket is connected with the three-way valve. The device provided by the utility model can reduce the waste of oil extraction and improve the accuracy of the oil sample.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a transformer fully-sealed oil extraction device adapter according to an embodiment of the present invention;
fig. 2 is a three-way valve of a fully-sealed oil extraction device for a transformer according to an embodiment of the present invention;
fig. 3 is a sampling platform of a fully-sealed oil extraction device of a transformer according to an embodiment of the present invention;
fig. 4 is a structural diagram of a fully-sealed oil extraction device for a transformer according to an embodiment of the present invention.
Icon: 1-ball valve; 2-oil taking ball valve; 3-mesh partition board; 4-hand hole.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The existing sampling method has the following defects:
1) the oil sample is taken in a self-flowing mode, the transformer oil is contacted with air for a long time, and air and water are mixed into the oil sample, so that the water content and the gas content of important indexes of the transformer oil assay exceed the standard, and the test result is inaccurate;
2) because the oil taking valve of the transformer has different forms and specifications, in daily oil taking, an oil discharge rubber tube is usually directly sleeved at the oil taking port of the oil taking valve, the rubber tube is manually pinched to prevent gas from mixing into an oil sample, but the sealing cannot be finished in practice, and the problems of gas escape or air entering in the oil exist;
3) when oil is taken, about 2L of unnecessary dirty oil needs to be discharged, generally, the step depends on the experience of workers, the accurate amount of dirty oil cannot be discharged, the former can collect polluted oil samples when the whole dirty oil is not discharged or the discharged amount is large, and the latter can cause waste;
4) because the oil sample container is exposed to the environment when oil is taken, the environment has great influence on the accuracy of the oil sample;
5) in the oil extraction process, one person controls the opening and closing of the oil sample valve, and the other person controls the oil extraction, and at least 2 workers are needed for the whole oil extraction.
In order to facilitate understanding of the embodiment, a fully-sealed oil extraction device for a transformer disclosed by the embodiment of the utility model is first described in detail.
The first embodiment is as follows:
the utility model provides a transformer full-sealed oil extraction device, which comprises: the device comprises a switching valve, a sampling platform and an oil stain bucket;
the switching valve comprises a switching joint and a three-way valve;
the interfaces at two ends of the adapter joint are both open cavities, one end of the interface of the adapter joint is connected with the three-way valve, and the other end of the adapter joint is connected with the transformer oil sample;
the sampling platform comprises a ball valve 1, an oil taking valve 2, a mesh partition plate 3 and a hand hole 4;
the oil taking ball valve 2 is positioned on the side surface of the sampling platform and is connected with the three-way valve;
the oil stain bucket is connected with the three-way valve.
Further, the ball valve 1, an oil-gas separator and a micro vacuum pump (voltage 3.6V, flow 1.52L/min, vacuum degree 75kPa) are used for optimizing the sampling environment of the sampling platform;
the mesh partition plate 3 plays a role in isolating dirty oil;
the hand hole 4 is used for realizing sealed oil extraction in the sampling lying.
The utility model has the following effects:
1) the device effectively reduces the influence of factors such as improper operation and external environment on the oil sample by sealing the sampling pipeline and optimizing the sampling environment, improves the reliability and accuracy of the oil sample, and reduces the waste caused by repeated oil extraction;
2) by determining the amount of the polluted oil, the phenomenon of collecting polluted oil samples or causing waste is effectively avoided;
3) the device can be adapted to sampling valves with different specifications and oil tanks without sampling valves, and is widely applied;
4) the device can realize oil extraction by a single person, thereby greatly reducing the labor cost;
5) the totally enclosed oil extraction device of transformer of this patent design uses the construction simple, uses swiftly, and maneuverability is strong, and construction strength is little, is applicable to extensive using widely.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (1)

1. The utility model provides a totally enclosed oil device of getting of transformer which characterized in that includes: the device comprises a switching valve, a sampling platform and an oil stain bucket;
the switching valve comprises a switching joint and a three-way valve;
the interfaces at two ends of the adapter joint are both open cavities, one end of the interface of the adapter joint is connected with a three-way valve, and the other end of the adapter joint is connected with a transformer oil sample;
the sampling platform comprises an oil taking ball valve, an oil taking valve, a mesh clapboard and a hand hole;
the oil taking ball valve is positioned on the side surface of the sampling platform and is connected with the three-way valve;
the oil stain bucket is connected with the three-way valve.
CN202121885216.2U 2021-08-12 2021-08-12 Totally enclosed oil taking device for transformer Active CN216386438U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121885216.2U CN216386438U (en) 2021-08-12 2021-08-12 Totally enclosed oil taking device for transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121885216.2U CN216386438U (en) 2021-08-12 2021-08-12 Totally enclosed oil taking device for transformer

Publications (1)

Publication Number Publication Date
CN216386438U true CN216386438U (en) 2022-04-26

Family

ID=81239031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121885216.2U Active CN216386438U (en) 2021-08-12 2021-08-12 Totally enclosed oil taking device for transformer

Country Status (1)

Country Link
CN (1) CN216386438U (en)

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