CN210071053U

CN210071053U - Oil level online monitoring device for oil conservator of transformer

Info

Publication number: CN210071053U
Application number: CN201921161238.7U
Authority: CN
Inventors: 董振华; 杜玉照; 魏建业
Original assignee: BAODING TRANSFORMER FITTINGS Co Ltd
Current assignee: Baoding Transformer Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-02-14
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a transformer stores up oil tank oil level on-line monitoring device, including the host computer, the host computer links to each other with at least one module that gathers, the module that gathers links to each other with at least one collection module, collection module is including setting up in the oil level sensor and the liquid level display appearance of storing up the oil tank bottom, oil level sensor warp the liquid level display appearance with the module that gathers links to each other, the host computer gather the module collection module all links to each other with power module. The utility model adopts the above structure transformer stores up oil tank oil level on-line monitoring device can be in real time with the oil level data transmission of gathering to the host computer to show in real time, improved data reading efficiency and the degree of accuracy, saved the cost of labor.

Description

Oil level online monitoring device for oil conservator of transformer

Technical Field

The utility model relates to a power equipment technique especially relates to a transformer stores up oil tank oil level on-line monitoring device.

Background

The oil level monitoring result of the transformer oil conservator is an important basis for whether the transformer can safely operate. Most of the existing oil level meters for oil level monitoring are mechanical pointer type or oil level pipe type, the oil level is displayed on site according to the mechanical principle, and the oil level meters can only transmit high and low alarm signals to a background measurement and control screen and cannot monitor the change of the oil level in real time; and as most of the administered substations are unattended, power operation and maintenance personnel are required to copy and report the oil level of the main transformer from each substation to each month, and the data statistics work of the oil level of the oil storage cabinet is completed.

The above monitoring and statistical modes mainly consist of the following drawbacks:

(1) if the mechanical oil level gauge fails, the real oil level cannot be checked, and the oil level gauge cannot be found timely after the failure, so that the safe operation of the transformer is influenced;

(2) if a floating ball of an oil level meter in the oil storage cabinet is blocked or a capsule is blocked, the real oil level cannot be reflected, and a false oil level is easy to appear;

(3) operation and maintenance personnel must report the oil level of hundreds of main transformer oil storage tanks of fifty or more transformer substations in the jurisdiction at the end of each month, the cost of manpower and material resources is high, and the change of the oil level cannot be monitored in real time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer stores up oil tank oil level on-line monitoring device can be in real time with the oil level data transmission to the host computer of gathering to show in real time, improved data reading efficiency and the degree of accuracy, saved the cost of labor.

For realizing the above-mentioned purpose, the utility model provides a transformer stores up oil tank oil level on-line monitoring device, including the host computer, the host computer links to each other with at least one module that gathers, the module that gathers links to each other with at least one collection module, collection module is including setting up in the oil level sensor and the liquid level display appearance that store up the oil tank bottom, oil level sensor warp the liquid level display appearance with the module that gathers links to each other, the host computer the module that gathers collection module all links to each other with power module.

Preferably, the liquid level display instrument comprises a display screen and an AD converter, and the oil level sensor is connected with the display screen through the AD converter.

Preferably, the summarizing module is connected with the eight paths of collecting modules through an I/O interface, and the summarizing module is an E-CPU/A14QE processor.

Preferably, the host computer includes industrial computer, converter and display, the industrial computer is through RS485 communication cable and six the converter links to each other, the converter through RS232 communication cable with the display links to each other.

Preferably, the collecting module is communicated with the industrial personal computer through an RS485 communication cable.

Therefore, the utility model discloses an adopt the transformer of above-mentioned structure to store up oil tank oil level on-line monitoring device can be in real time with the oil level data transmission of gathering to the host computer to show in real time, improved data reading efficiency and degree of accuracy, saved the cost of labor.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic block diagram of an oil level online monitoring device for a transformer oil conservator according to an embodiment of the present invention;

fig. 2 is the circuit schematic diagram of the oil level online monitoring device for the oil conservator of the transformer according to the embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.

Fig. 1 is a schematic block diagram of an on-line oil level monitoring device for a transformer oil conservator according to an embodiment of the present invention, fig. 2 is a schematic circuit diagram of an on-line oil level monitoring device for a transformer oil conservator according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, the structure of the present invention includes an upper computer, the upper computer includes an industrial personal computer, a converter and a display, the industrial personal computer is connected with six paths of the converter through RS485 communication cables, the converter is connected with the display through RS232 communication cables, the upper computer is connected with at least one collecting module, specifically, the collecting module is communicated with the industrial personal computer through RS485 communication cables, the collecting module is connected with at least one collecting module, preferably, the collecting module is connected with eight paths of the collecting module through I/O interfaces, the collecting module is an E-CPU/a14QE processor, the oil level sensor is connected with the gathering module, the liquid level display instrument comprises a display screen and an AD converter, the oil level sensor is connected with the display screen through the AD converter, the AD converter is also connected with the gathering module, the upper computer, the gathering module and the gathering module are all connected with the power module, oil level information is gathered on site through the oil level sensor and is converted into digital signals through the AD converter, the digital signals are transmitted to the display screen and the gathering module, the gathering module gathers the data and transmits the data to the upper computer for displaying, and an oil level change curve is output on the display Whether oil in the oil tank is leaked or not (the curve change rate is overlarge), if the curve change rate is overlarge, a fault is judged, the upper computer generates an alarm signal to inform related personnel of handling abnormal conditions in time, and it needs to be explained that the generation of the alarm signal is common knowledge in the field and is not repeated here, so that the problem of personnel tension in operation and maintenance departments is relieved, the labor intensity of operating personnel is reduced, a large amount of manpower and material resource cost is saved, the reliability of safe operation of the transformer is greatly improved, the operation is simple, the safety and the reliability are high, the practicability is high, and the popularization and the use are easy.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a transformer stores up oil tank oil level on-line monitoring device, includes host computer, its characterized in that: the upper computer links to each other with at least one module of gathering, the module of gathering links to each other with at least one collection module, collection module is including setting up in the oil level sensor and the liquid level display appearance of oil conservator bottom, the oil level sensor warp the liquid level display appearance with the module of gathering links to each other, the upper computer the module of gathering the collection module all links to each other with power module.

2. The on-line oil level monitoring device for the transformer conservator as claimed in claim 1, wherein: the liquid level display appearance includes display screen and AD converter, the oil level sensor warp the AD converter with the display screen links to each other.

3. The on-line oil level monitoring device for the transformer conservator as claimed in claim 1, wherein: the collecting module is connected with the eight collecting modules through I/O interfaces and is an E-CPU/A14QE processor.

4. The on-line oil level monitoring device for the transformer conservator as claimed in claim 1, wherein: the upper computer includes industrial computer, converter and display, the industrial computer is through RS485 communication cable and six the converter links to each other, the converter through RS232 communication cable with the display links to each other.

5. The on-line oil level monitoring device for the transformer conservator as claimed in claim 4, wherein: the collecting module is communicated with the industrial personal computer through an RS485 communication cable.