CN109596919B - Transmission capacity short-time overload monitoring device for power transmission line - Google Patents
Transmission capacity short-time overload monitoring device for power transmission line Download PDFInfo
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- CN109596919B CN109596919B CN201811539218.9A CN201811539218A CN109596919B CN 109596919 B CN109596919 B CN 109596919B CN 201811539218 A CN201811539218 A CN 201811539218A CN 109596919 B CN109596919 B CN 109596919B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The utility model provides a transmission capacity short-term overload monitoring device of transmission line, relates to power supply unit, and including a rearmounted shell, rearmounted shell one end is connected with one set of electronic clamping jaw, control panel and battery have been placed in the rearmounted shell, semiconductor thermoelectric generation module is installed to the rearmounted shell other end, and semiconductor thermoelectric generation module is connected with the arc heat-conducting plate through the telescopic link, and semiconductor thermoelectric generation module is connected with the battery, the control panel is connected with an infrared temperature sensor, infrared temperature sensor is connected with the electric wire. The electric clamping jaw can be fixed on the power transmission tower to prevent the electric clamping jaw from falling off, the temperature of the electric wire is detected in real time by the infrared sensor, and the temperature difference between the electric clamping jaw and the electric wire is utilized to generate electricity by the semiconductor temperature difference generating module so as to provide the electric power of the infrared sensor. Utilize wireless transceiver module to carry out the transmission of relevant signal, avoid artifical climbing electric tower to cause the incident.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a short-time overload monitoring device for transmission capacity of a transmission line.
Background
With the continuous development of regional economy, the load of a regional power grid increases year by year, higher requirements are put on the power transmission capacity of a power transmission network, and due to the fact that the energy-saving and emission-reducing concept is pursued, the land acquisition cost is increased, and the development of a new power transmission corridor and the erection of a new power transmission line are more and more difficult.
The transmission limit value of the line is evaluated by the maximum allowable current-carrying capacity of the transmission line in engineering, and the static line capacity limit value is conservatively obtained on the basis of the worst meteorological conditions and is obtained for maintaining the safe distance of the line to the ground. But most of the time the meteorological conditions outside the grid are much better than the assumed worst meteorological conditions.
The construction of new lines or the technical transformation, upgrading or extension of existing lines is a measure generally adopted at present to improve the transmission capacity of the lines, but the measure undoubtedly has the problems of large investment and long construction period, and increases the operation cost of the power department. Under the current technical conditions, particularly when the power system is still in the period of high-speed development and gradual improvement, the existing power transmission equipment is fully utilized, the potential power transmission capacity of the line is excavated, and the method has double values of theory and practice.
Chinese patent CN201510980627.2 discloses a method for improving transmission capacity of a section considering short-time overload of a line, which provides a theoretical basis for short-time overload of the line, but how to convert the method into actual productivity, during the process of short-time overload of the line, the temperature of the line must be monitored to ensure the safety, and no similar equipment exists yet.
Disclosure of Invention
The invention provides a short-time overload monitoring device for transmission capacity of a transmission line, which can detect the temperature of a wire in real time by using a sensor and realize the power supply of the sensor and a related power unit by using the heat of the wire without charging.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a transmission capacity short-term overload monitoring devices of transmission line, includes a rearmounted shell, rearmounted shell one end is connected with one set of electronic clamping jaw, control panel and battery have been placed in the rearmounted shell, semiconductor thermoelectric generation module is installed to the rearmounted shell other end, and semiconductor thermoelectric generation module is connected with the arc heat-conducting plate through the telescopic link, and semiconductor thermoelectric generation module is connected with the battery, the control panel is connected with an infrared temperature sensor, infrared temperature sensor is connected with the electric wire.
Further, semiconductor thermoelectric generation module includes a semiconductor thermoelectric generation piece, the P type one side of semiconductor thermoelectric generation piece is connected on electronic clamping jaw, and N type one side is connected on the arc heat-conducting plate.
Further, the electric clamping jaws are clamped on the fixed steel pipe and slide to the lower end part of the fixed steel pipe along the fixed steel pipe under the action of self gravity.
Further, the storage battery is connected with an infrared temperature sensor.
Furthermore, a wireless transceiving module is arranged on the control panel.
Further, a motor is further arranged between the rear shell and the semiconductor temperature difference power generation module, the motor is fixed in the rear shell, and an output shaft of the motor is connected to the semiconductor temperature difference power generation module.
Furthermore, a plurality of elastic plates are arranged on the inner wall of the arc-shaped heat conduction plate, and a plurality of heat absorption elastic balls are connected to the elastic plates.
The invention has the beneficial effects that:
the electric clamping jaw can be fixed on the power transmission tower to prevent the electric clamping jaw from falling off, the temperature of the electric wire is detected in real time by the infrared sensor, and the temperature difference between the electric clamping jaw and the electric wire is utilized to generate electricity by the semiconductor temperature difference generating module so as to provide the electric power of the infrared sensor. Utilize wireless transceiver module to carry out the transmission of relevant signal, avoid artifical climbing electric tower to cause the incident.
Drawings
Fig. 1 is a schematic view of a conventional power transmission tower;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic three-dimensional structure of the present invention;
FIG. 4 is a front view of the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1 transmission tower, 11 fixed steel pipes, 12 supporting pipes, 13 electric wires,
the device comprises a rear shell 21, an electric clamping jaw 22, a semiconductor thermoelectric generation module 23, a telescopic rod 24, an arc-shaped heat conducting plate 25, a motor output shaft 3, an elastic plate 251 and an elastic heat absorption ball 252.
Detailed Description
As shown in fig. 1 to 2, the transmission tower 1 is shaped like a "dry" tower, two lightning conductors are erected on the tower, the conductors are arranged in an isosceles triangle shape, and the tower shape is clearly and directly stressed.
The power transmission tower 1 comprises a fixed steel pipe 11, the fixed steel pipe is connected with a supporting pipe 12, and an electric wire 13 is installed on the supporting pipe. The above is prior art.
The short-time overload monitoring device for the transmission capacity of the transmission line is shown in figures 3 to 5.
The utility model provides a transmission capacity short-term overload monitoring devices of transmission line, includes a rearmounted shell 21, rearmounted shell one end is connected with one set of electronic clamping jaw 22, and this electronic clamping jaw is used for the centre gripping on fixed steel pipe 11 to can slide to fixed steel pipe lower tip along fixed steel pipe under the effect of self gravity, be close to electric wire 13.
The control panel and the storage battery are arranged in the rear shell and used for providing power for the electric clamping jaw and controlling the action of the electric clamping jaw. And a semiconductor temperature difference power generation module 23 is arranged at the other end of the rear shell.
The semiconductor thermoelectric generation module 23 is connected with an arc-shaped heat conduction plate 25 through a telescopic rod 24.
The core of the semiconductor thermoelectric generation module is a semiconductor thermoelectric generation piece, heat energy is directly converted into electric energy by utilizing the Seebeck effect, one side of the semiconductor thermoelectric generation piece combined by the P type and the N type is maintained at low temperature, the other side of the semiconductor thermoelectric generation piece combined by the P type and the N type is maintained at high temperature, and thus the high-temperature side of the device can conduct heat energy to the low-temperature side and generate heat flow. That is, when heat energy flows into the device from the high temperature side and is discharged from the low temperature side through the device, a part of the heat energy flowing into the device does not release heat and is converted into electric energy in the device, and a direct current voltage and a current are output. Larger voltages can be obtained by connecting a plurality of such devices. The semiconductor thermoelectric generation piece is a purchased part, and can adopt a TEC1-06303 type power generation piece of Shenzhen company, wherein one P-type side of the semiconductor thermoelectric generation module 23 is connected to the electric clamping jaw, and one N-type side of the semiconductor thermoelectric generation module is connected to the arc-shaped heat conduction plate 25. The thermoelectric generation of the semiconductor thermoelectric generation module 23 can be realized through the temperature difference between the electric clamping jaw and the arc-shaped heat conducting plate.
The semiconductor thermoelectric generation module 23 is connected with a storage battery for supplying electric power thereof.
The control panel is connected with an infrared temperature sensor, infrared temperature sensor is connected with the electric wire for the temperature of real-time detection electric wire. Because the temperature is about 35 degrees basically at ordinary times for the electric wire, if the electric wire transships for a short time then the temperature probably increases to 50 degrees suddenly, and the difference in temperature between electronic clamping jaw and the arc heat-conducting plate becomes big for the battery is in full charge state in real time.
The storage battery is connected with an infrared temperature sensor, so that the infrared temperature sensor does not need to worry about power sources, and can continuously monitor and detect for 24 hours.
The MIK-AL-10 infrared thermometer is a purchased part, and a sensor, an optical system and an electronic circuit of the thermometer are integrated in a stainless steel shell together, so that the MIK-AL-10 infrared thermometer has the characteristics of small volume, convenience in installation, capability of resisting electromagnetic interference and the like. The method is widely applied to industries such as tobacco, heating furnaces, food processing, rubber manufacturing, papermaking, plastics, packaging, dyeing textile, electrical and composite materials and the like.
The control panel is provided with a wireless transceiver module (outsourcing piece, type YET207 of Teletat) which can transmit the data detected by the infrared temperature sensor to a receiver on the ground or a mobile phone and a computer of people.
The scheme is further refined, still be equipped with a motor between rearmounted shell and the semiconductor thermoelectric generation module 23, the motor is fixed in rearmounted shell, the output shaft 3 of motor is connected on semiconductor thermoelectric generation module 23, can drive the angle deflection of semiconductor thermoelectric generation module 23 and arc heat-conducting plate 25 through the rotation of motor.
According to the scheme optimization, the inner wall of the arc-shaped heat conduction plate 25 is provided with a plurality of elastic plates 251, the elastic plates are connected with a plurality of heat absorption elastic balls 252, and the arc-shaped heat conduction plate 25 can be more contacted with the wires 13 arranged on the supporting tube 12 by utilizing the design of the elastic plates and the elastic balls so as to absorb heat in the wires and carry out power generation of the semiconductor temperature difference power generation module 23.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (5)
1. The short-time overload monitoring device for the transmission capacity of the power transmission line is characterized by comprising a rear shell, wherein one end of the rear shell is connected with a set of electric clamping jaws, a control plate and a storage battery are placed in the rear shell, the other end of the rear shell is provided with a semiconductor temperature difference power generation module, the semiconductor temperature difference power generation module is connected with an arc-shaped heat conduction plate through a telescopic rod, the semiconductor temperature difference power generation module is connected with the storage battery, the control plate is connected with an infrared temperature sensor, and the infrared temperature sensor is connected with the power transmission line;
the semiconductor thermoelectric generation module comprises a semiconductor thermoelectric generation piece, wherein the P-type side of the semiconductor thermoelectric generation piece is connected to the electric clamping jaw, and the N-type side of the semiconductor thermoelectric generation piece is connected to the arc-shaped heat conduction plate;
the electric clamping jaw is clamped on the fixed steel pipe and slides to the lower end part of the fixed steel pipe along the fixed steel pipe under the action of self gravity; the arc-shaped heat conducting plate is in contact with the power transmission line.
2. The device for monitoring short-term overload of transmission capacity of power transmission line according to claim 1, characterized in that the storage battery is connected with an infrared temperature sensor.
3. The device for monitoring short-term overload of transmission capacity of transmission line according to claim 1, wherein the control board is provided with a wireless transceiver module.
4. The device for monitoring short-term overload of transmission capacity of transmission line according to claim 1, wherein a motor is further arranged between the rear housing and the semiconductor thermoelectric generation module, the motor is fixed in the rear housing, and an output shaft of the motor is connected to the semiconductor thermoelectric generation module.
5. The device for monitoring short-term overload of transmission capacity of power transmission line according to claim 4, wherein the inner wall of the arc-shaped heat conducting plate is provided with a plurality of elastic plates, and the elastic plates are connected with a plurality of heat-absorbing elastic balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539218.9A CN109596919B (en) | 2018-12-14 | 2018-12-14 | Transmission capacity short-time overload monitoring device for power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539218.9A CN109596919B (en) | 2018-12-14 | 2018-12-14 | Transmission capacity short-time overload monitoring device for power transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN109596919A CN109596919A (en) | 2019-04-09 |
| CN109596919B true CN109596919B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811539218.9A Active CN109596919B (en) | 2018-12-14 | 2018-12-14 | Transmission capacity short-time overload monitoring device for power transmission line |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202562629U (en) * | 2012-03-30 | 2012-11-28 | 山西省电力公司太原供电分公司 | High voltage power transmission line strain drainage wire clamp temperature testing system |
| CN103367939B (en) * | 2013-07-02 | 2015-10-28 | 广州番禺电缆集团有限公司 | A kind of cable clamp with electrical distance transmitting cable contact state monitoring device |
| CN203551116U (en) * | 2013-11-08 | 2014-04-16 | 成都赛康信息技术有限责任公司 | Device for collecting temperature of high-voltage overhead transmission line |
| CN105606236B (en) * | 2016-03-18 | 2018-06-26 | 西安交通大学 | A kind of passive and wireless temperature transducer and temp measuring method |
| CN205655925U (en) * | 2016-05-04 | 2016-10-19 | 国网山东省电力公司莱芜供电公司 | Distribution lines temperature display instrument |
| CN207379612U (en) * | 2017-11-07 | 2018-05-18 | 重庆大学 | A kind of annular infrared temperature detection device for cable thermometric |
| CN108344929A (en) * | 2018-01-15 | 2018-07-31 | 长沙理工大学 | XLPE cable circulating current fault based on thermo-electric generation monitors system |
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2018
- 2018-12-14 CN CN201811539218.9A patent/CN109596919B/en active Active
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