CN217005982U - High-precision variable scanning oil level measuring tool for oil-immersed transformer - Google Patents
High-precision variable scanning oil level measuring tool for oil-immersed transformer Download PDFInfo
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- CN217005982U CN217005982U CN202123228891.0U CN202123228891U CN217005982U CN 217005982 U CN217005982 U CN 217005982U CN 202123228891 U CN202123228891 U CN 202123228891U CN 217005982 U CN217005982 U CN 217005982U
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Abstract
The utility model relates to a high-precision variable scanning oil level measuring tool for an oil immersed transformer, which comprises an industrial computer and a plurality of integrated sampling front-end devices; the integrated sampling front-end devices are fixed outside an oil tank of the main transformer and are coaxially arranged and respectively positioned at different heights outside the oil tank; the integrated sampling front-end device comprises a device shell and an ultrasonic sensor, and the ultrasonic sensor is wirelessly connected with an industrial computer; the integrated sampling front-end devices can detect the oil height of an oil tank of the main transformer through the ultrasonic sensor and display the oil height through an industrial computer. The oil level change in the oil tank can be monitored in real time in the main transformer oil injection process, the non-contact oil liquid mode is adopted in the measurement process, the height change of the oil level in the oil tank can be truly reflected, the occurrence of rework delay power transmission events caused by too low or too high oil injection level can be effectively avoided, and meanwhile, foreign matters can be prevented from falling into the transformer and being affected with damp.
Description
Technical Field
The utility model relates to the technical field of transformer oil liquid measurement, in particular to a high-precision variable scanning oil level measuring tool for an oil immersed transformer.
Background
At present, in a main network construction project of an electric power system, a main transformer replacement and overhaul operation construction process is complex, technical requirements are high, and especially in an oil treatment link, rework and even main transformer winding damp risks and the like are caused carelessly. At present, a production project site carries out an oil treatment link aiming at a main transformer replacement maintenance engineering project, a detection tool for accurately measuring the rising change of the oil level of a transformer body is lacked, and the rising mode of the oil level is judged.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a high-precision variable scanning oil level measuring tool for an oil-immersed transformer.
The technical scheme adopted by the utility model is as follows:
a high-precision variable scanning oil level measuring tool for an oil-immersed transformer comprises an industrial computer and a plurality of integrated sampling front-end devices; the integrated sampling front-end devices are fixed outside an oil tank of the main transformer and are coaxially arranged and respectively positioned at different heights outside the oil tank; the integrated sampling front-end device comprises a device shell and an ultrasonic sensor, wherein the ultrasonic sensor is embedded in the device shell and is in wireless connection with an industrial computer; the integrated sampling front-end devices can detect the oil height of an oil tank of the main transformer in real time through the ultrasonic sensors and display the oil height through an industrial computer.
Furthermore, the industrial computer is embedded in the control box, and a power socket convenient for the industrial computer to be electrified is arranged on the control box, so that a power switch for controlling the industrial computer to be turned on and off can be controlled.
Furthermore, a loudspeaker electrically connected with the industrial computer is also arranged on the control box.
Furthermore, a signal indicator lamp is also embedded in the device shell of the integrated sampling front-end device; the signal indicator light is electrically connected with the ultrasonic sensor.
Furthermore, strong magnets are embedded at four corners of the device shell of the integrated sampling front-end device.
The utility model has the beneficial effects that:
the high-precision variable scanning oil level measuring tool for the oil-immersed transformer can monitor the change of the oil level in an oil tank in real time in the oil injection process of the main transformer; the measurement process adopts non-contact fluid mode, need not uncap, and the external connection pipeline measurement oil level of not, can effectively avoid the foreign matter to transfer into the body risk, and insulating oil is because of outside moisture gets into to lead to the winding annex risk of weing to take place.
The high-precision variable scanning oil level measuring tool for the oil-immersed transformer is low in manufacturing cost, simple to operate and free from the limitation of environmental temperature, can truly reflect the height change of the oil level in the oil tank, and effectively avoids the occurrence of rework delay power transmission events caused by too low or too high oil level of oil injection; the high-precision variable scanning oil level measuring tool for the oil-immersed transformer is suitable for measuring the oil levels of various containers in various shapes such as an insulating oil storage tank, a main transformer conservator and the like of the transformer besides an oil tank of the main transformer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in fig. 1, 1-industrial computer, 2-integrated sampling front-end device, 3-device shell, 4-ultrasonic sensor, 5-control box, 6-power socket, 7-power switch, 8-loudspeaker, 9-indicator light, 10-strong magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
According to the standard requirement of 4.10.1 of GB50148-2010 Electrical device installation engineering power transformer, oil immersed reactor and transformer construction and acceptance standard: when oil is injected to a position 200mm away from the top cover of the transformer body, vacuumizing is performed, the oil level height of the injected oil is difficult to accurately judge according to the existing experience, the injected oil is too low to meet the requirement of a vacuumizing regulation, and miscellaneous matters and moisture gas in the main transformer body are difficult to be pumped out and are left in the transformer body when vacuumizing is performed; the oiling is too high, and transformer oil spills over from the conservator, leads to unable evacuation work. Due to the defects of the work, the problems of pressure resistance, micro-water and chromatographic test disqualification, rework, construction period delay, delayed power transmission and the like of the oiling test are caused, and further, the serious potential safety hazard is brought to the safe and stable operation of the main transformer.
As shown in fig. 1, the utility model provides a high-precision variable scanning oil level measuring tool for an oil-immersed transformer, which comprises an industrial computer 1 and a plurality of integrated sampling front-end devices 2;
specifically, the plurality of integrated sampling front-end devices 2 are fixed outside an oil tank of the main transformer, and the plurality of integrated sampling front-end devices 2 are coaxially arranged and are respectively positioned at different heights outside the oil tank; the integrated sampling front-end device 2 comprises a device shell 3 and an ultrasonic sensor 4, wherein the ultrasonic sensor 4 is embedded in the device shell 3, and the ultrasonic sensor 4 is wirelessly connected with the industrial computer 1; the integrated sampling front-end devices 2 can detect the oil height of an oil tank of the main transformer in real time through the ultrasonic sensor 4 and display the oil height through the industrial computer 1.
Furthermore, the industrial computer 1 is embedded in a control box 5, a power socket 6 which is convenient for the industrial computer 1 to be powered on is arranged on the control box 5, and a power switch 7 which can control the industrial computer 1 to be turned on and turned off is arranged on the control box. The control box 5 can effectively protect the industrial computer 1.
The specific working principle of the high-precision variable scanning oil level measuring tool for the oil-immersed transformer is as follows:
because the integrated sampling front-end devices 2 are coaxially arranged and are respectively positioned at different heights outside the oil tank, when the oil height in the oil tank of the main transformer reaches any one of the integrated sampling front-end devices 2, the sound wave emitted by the ultrasonic sensor 4 of the integrated sampling front-end device 2 can be reflected by the oil and is received by the ultrasonic sensor 4; so as to detect the height of the oil reaching the height set by the integrated sampling front-end device 2. Because a plurality of integrated sampling front end device 2's ultrasonic sensor 4 all with industrial computer 1 wireless connection, and then a plurality of integrated sampling front end device 2's testing result information can transmit to industrial computer 1, industrial computer 1 can be to a plurality of integrated sampling front end device 2's testing result information gather the back and show, also can set for early warning fluid height simultaneously, when fluid height from ware body top cap 200mm department, carry out the early warning suggestion, the suggestion oil level is about to satisfy the requirement.
In another embodiment of the present invention, as shown in fig. 1, the control box 5 is further provided with a speaker 8 electrically connected to the industrial computer 1, and when the industrial computer 1 performs the warning prompt, the speaker 8 can perform the warning sound prompt, so that when the industrial computer 1 is not checked, the position where the oil level is 200mm away from the top cover of the device body can be known.
In another embodiment of the present invention, as shown in fig. 1, a signal indicator lamp 9 is further embedded and installed on the device housing 3 of the integrated sampling front-end device 2; the signal indicator lamp 9 is electrically connected with the ultrasonic sensor 4. Through addding signal indicator 9 for when ultrasonic sensor 4 detected fluid, signal indicator 9 lights, realizes the early light early warning of oiling.
In addition, there are a plurality of ways that the integrated sampling front-end device 2 is fixed outside the oil tank of the main transformer, but in this embodiment, it is preferable to fix the integrated sampling front-end device 2 by using a magnetic attraction manner, specifically, strong magnets 10 are further embedded at four corners of the device housing 3 of the integrated sampling front-end device 2, and the integrated sampling front-end device 2 is fixed outside the oil tank of the main transformer by using the magnetic attraction manner through the strong magnets 10.
Claims (5)
1. The utility model provides a high-accuracy scanning oil level measuring tool that becomes of oil-immersed transformer which characterized in that: the high-precision variable scanning oil level measuring tool for the oil-immersed transformer comprises an industrial computer and a plurality of integrated sampling front-end devices; the integrated sampling front-end devices are fixed outside an oil tank of the main transformer and are coaxially arranged and respectively positioned at different heights outside the oil tank; the integrated sampling front-end device comprises a device shell and an ultrasonic sensor, wherein the ultrasonic sensor is embedded in the device shell and is in wireless connection with an industrial computer; the integrated sampling front-end devices can detect the oil height of an oil tank of the main transformer in real time through the ultrasonic sensor and display the oil height through an industrial computer.
2. The oil-filled transformer high-precision variable scanning oil level measuring tool according to claim 1, characterized in that: the industrial computer is embedded in the control box, a power socket convenient for the industrial computer to be electrified is arranged on the control box, and a power switch capable of controlling the industrial computer to be turned on and off can be controlled.
3. The oil-filled transformer high-precision variable scanning oil level measuring tool according to claim 2, characterized in that: and the control box is also provided with a loudspeaker electrically connected with the industrial computer.
4. The oil-filled transformer high-precision variable scanning oil level measuring tool according to claim 1, characterized in that: a signal indicator lamp is also embedded in the device shell of the integrated sampling front-end device; the signal indicator light is electrically connected with the ultrasonic sensor.
5. The oil-filled transformer high-precision variable scanning oil level measuring tool according to claim 1, characterized in that: and strong magnets are embedded at four corners of the device shell of the integrated sampling front-end device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228891.0U CN217005982U (en) | 2021-12-21 | 2021-12-21 | High-precision variable scanning oil level measuring tool for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228891.0U CN217005982U (en) | 2021-12-21 | 2021-12-21 | High-precision variable scanning oil level measuring tool for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217005982U true CN217005982U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123228891.0U Active CN217005982U (en) | 2021-12-21 | 2021-12-21 | High-precision variable scanning oil level measuring tool for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217005982U (en) |
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2021
- 2021-12-21 CN CN202123228891.0U patent/CN217005982U/en active Active
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