Novel coating and system for monitoring abnormal heating of power transmission line and power transmission and transformation equipment
Technical Field
The invention belongs to the technical field of power transmission monitoring, and particularly relates to a novel coating and a system for monitoring abnormal heating of a power transmission line and power transmission and transformation equipment.
Background
Abnormal heating is a potential threat in stable operation of important parts of a power transmission line and power transmission and transformation equipment, and if the abnormal heating is not discovered and processed in time, once the heating is serious, equipment connection points are blown, large-area power failure, fire and other hazards are caused, and the safe and stable operation of a power grid is seriously influenced. Therefore, the heating condition needs to be mastered in time, so that the operation and inspection personnel can take measures in time, and the occurrence of accidents is reduced.
The main problems faced are:
the most common temperature measurement method at present is infrared temperature measurement, but the infrared temperature measurement inspection workload is large and the detection accuracy of fine parts is low; in addition, the real-time monitoring system is high in cost and large in construction difficulty, the robot and the unmanned aerial vehicle of the power transmission line are patrolled and examined more and more generally, the image recognition technology is gradually popularized in application, the infrared detector is carried, the load of the robot is greatly increased, and the difficulty of automatic detection is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a novel coating and a system for monitoring abnormal heating of a power transmission line and power transmission and transformation equipment, which can improve the monitoring working efficiency and reduce the monitoring cost.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a novel coating suitable for monitoring usefulness that generates heat unusually of transmission line and transmission limit electrical equipment which characterized in that: the coating is applied to the surface of a monitored object, and the composition of the coating is as follows: zn-5Al-nX, wherein X is a pigment with a reversible temperature indicating function, and n is the component percentage of the pigment.
Further: the pigment is mercuric iodide HgI2Cobalt oxide-hexamethylenetetramine CoO-C6H12N4Or malachite green.
Further: the value range of n is 1-5%.
Further: the thickness of the coating is: 30-50 um.
The utility model provides a system suitable for transmission line and limit electrical equipment abnormal heating monitoring usefulness which characterized in that: the device comprises a coating, a color sensor, a signal receiver, a processor and an alarm;
the coating is a coating with a temperature early warning function and is coated on the surface of an object to be monitored;
the color sensor is arranged at a key monitoring part of the monitored object; the color sensor is used for monitoring a color signal of the coating and sending a light wave signal with corresponding frequency to the signal receiver;
the signal receiver is arranged on the ground and used for receiving the output signal of the color sensor and outputting the color signal to the processor;
the processor converts the light wave signals, then processes data, memorizes the color of the surface coating of the monitored object in a normal running state, defines the color in the normal state as 0, defines other colors as 1 and stores the colors in the processor; when the color of the coating on the surface of the monitored object changes, the processor outputs a signal 1 to an alarm for alarming;
the alarm is used for sending an alarm signal to remind a maintainer to maintain, and after the maintainer overhauls, the color of the coating is recovered to be normal.
And the signal receiver and the processor as well as the processor and the alarm are in data communication through a circuit.
Further: the signal receiver, processor and alarm are installed on the ground within 50 meters of the monitored object.
The invention has the advantages and positive effects that:
1. the novel coating has the advantages of good chemical stability, small temperature indication level, long service life, low manufacturing cost and convenient use.
2. Aiming at dangerous areas and infrared shielding areas, the application of the coating greatly reduces the workload of routing inspection measurement, enables temperature indication detection to cover more equipment, enlarges the monitoring range and improves the operation reliability of a power grid.
3. By adopting the monitoring system, the workload is reduced, the inspection time of the unmanned aerial vehicle is saved, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a monitoring flow diagram of a monitoring system employing the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention is not limited thereto.
The first embodiment is as follows:
the novel coating is suitable for important parts of power transmission lines and power transmission and transformation equipment, has a temperature early warning function, and comprises Zn-5Al-3HgI 2. According to weight percentage, Zn powder, Al powder and HgI2 powder with the granularity of 30-40 mu m are mixed according to the weight ratio of 92%: 5%: 3 percent of the powder is uniformly mixed, and then the powder is coated on the surfaces of the circuit and the splicing fitting by adopting a spraying method to prepare a coating with the thickness of 50um, wherein the coating is red.
Color change monitoring: the color sensor is installed at a key monitoring part, the signal receiver is installed on the ground and used for receiving signals of the sensor, the color sensor senses color change and sends out signals, the receiver conveys the received signals to the processor for data processing, when the data are abnormal, the processor transmits the signals to the alarm, and the alarm sends out alarm signals to remind a maintainer of maintaining.
When abnormal heating occurs during the operation of the hardware, and the surface temperature of the hardware exceeds 100 ℃, the Zn-5Al-3HgI2 coating changes from red to cyan, the color sensor senses the color change and sends out a signal, the receiver transmits the received signal to the processor for data processing, the processor transmits the signal to the alarm, and the alarm sends out an alarm signal to remind a maintainer of trimming. After the overhaul personnel find out the abnormity and solve the abnormity, the Zn-5Al-3HgI2 coating on the surface of the hardware is reversibly discolored and is displayed to be red, and the line runs normally.
Example two:
the novel coating is suitable for important parts of power transmission lines and power transmission and transformation equipment, has a temperature early warning function, and comprises Zn-5Al-CoO-C6H12N 4. Mixing Zn powder with the particle size of 30-40 mu m, Al powder and CoO-C6H12N4 powder according to the weight ratio of 94%: 5%: 1 percent of the powder is uniformly mixed, and then the powder is coated on the surfaces of a line and a splicing fitting by adopting a spraying method to prepare a coating with the thickness of 50um, wherein the coating is pink.
Color change monitoring: the color sensor is installed at a key monitoring part, the signal receiver is installed on the ground and used for receiving signals of the sensor, the color sensor senses color change and sends out signals, the receiver conveys the received signals to the processor for data processing, when the data are abnormal, the processor transmits the signals to the alarm, and the alarm sends out alarm signals to remind a maintainer of maintaining.
When the hardware tool is abnormal in operation, after the temperature exceeds 50 ℃, the Zn-5Al-CoO-C6H12N4 coating is displayed to be orange, the color sensor senses color change and sends out a signal, the receiver transmits the received signal to the processor for data processing, the processor transmits the signal to the alarm, and the alarm sends out an alarm signal to remind a maintainer of trimming. After the maintainer finds out the abnormality and solves the abnormality, the Zn-5Al-CoO-C6H12N4 coating reversibly changes color and shows pink color, and the line normally runs.
Example three:
the novel coating is suitable for important parts of power transmission lines and power transmission and transformation equipment, has a temperature early warning function, and consists of Zn-5Al-5 malachite green. 90% of Zn powder, Al powder and malachite green powder with the granularity of 30-40 mu m according to the weight ratio: 5%: 5 percent of the powder is uniformly mixed, and then the powder is coated on the surfaces of a circuit and a splicing fitting by adopting a thermal spraying method to prepare a coating with the thickness of 30um, wherein the coating is blue-green.
Color change monitoring: the color sensor is installed at a key monitoring part, the signal receiver is installed on the ground and used for receiving signals of the sensor, the color sensor senses color change and sends out signals, the receiver conveys the received signals to the processor for data processing, when the data are abnormal, the processor transmits the signals to the alarm, and the alarm sends out alarm signals to remind a maintainer of maintaining.
When the hardware tool generates heat abnormally during operation and the surface temperature of the hardware tool exceeds 200 ℃, the Zn-5Al-5 malachite green coating is changed from blue-green to white, the color sensor senses the color change to send out a signal, the receiver transmits the received signal to the processor for data processing, the processor transmits the signal to the alarm, and the alarm sends out an alarm signal to remind a maintainer of trimming. After the overhaul personnel find out the abnormity and solve the abnormity, the Zn-5Al-5 peacock green coating on the surface of the hardware fitting is reversibly discolored, the color is displayed as blue-green, and the line runs normally.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.