CN103151749A - Electromagnetic induction de-icing method and device - Google Patents
Electromagnetic induction de-icing method and device Download PDFInfo
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- CN103151749A CN103151749A CN2013101107586A CN201310110758A CN103151749A CN 103151749 A CN103151749 A CN 103151749A CN 2013101107586 A CN2013101107586 A CN 2013101107586A CN 201310110758 A CN201310110758 A CN 201310110758A CN 103151749 A CN103151749 A CN 103151749A
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Abstract
The invention discloses an electromagnetic induction de-icing method and an electromagnetic induction de-icing device. At least one insulating ring is sleeved on the part where ice is easily coated on an electric transmission line; an electromagnetic induction layer is arranged outside the insulating ring; a pressure sensor is arranged outside the electromagnetic induction layer and is connected with an operating mechanism for controlling an electromagnetic induction ring or coil to open and close; when the thickness of the ice coated on the electric transmission line is up to preset value, the pressure sensor provides a signal to the operating mechanism, the operating mechanism closes the electromagnetic induction ring or coil, and subsequently the electromagnetic induction ring generates heat to de-ice; and the coated ice is dissolved, becomes thin or disappears, after sensing a pressure signal, the pressure sensor transmits the signal to the operating mechanism, and the electromagnetic induction ring or coil is started and stops generating heat. The thickness of the coated ice on the transmission line can be monitored in real time by the method and the device, and once the thickness of the coated ice is up to the preset thickness, the de-icing device can be started to de-ice, so that the ice is timely removed, and the safety of electric transmission equipment can be fully guaranteed.
Description
Technical field
The anti-evil of electric power system mitigation of the present invention field is specifically related to a kind of deicing device, also relates to simultaneously a kind of de-icing method.
Background technology
Along with the fast development of economy, country strengthens the electric utility investment and builds.Building up of a large amount of high pressure, extra-high voltage grid, the safe and stable operation of transmission line more and more comes into one's own.Ultra-high-tension power transmission line is erected at the ground such as open-air mountain area more, in the area of cold, easily suffers the impact of freezing weather and produces icing.Powerline ice-covering can increase the weight of the mechanical load of wire and shaft tower, can cause the accidents such as line tripping, broken string, electric pole collapse, insulator arc-over, communication disruption when icing is serious, because Harm Accident mostly occurs in bad weather, ice and snow is sealed a mountain pass, traffic is obstructed, communication disruption, the repairing work of circuit is very difficult, thereby icing can cause the long-time power failure of electric power system when serious, causes heavy losses to industrial and agricultural production, makes troubles for the people's daily life.Therefore, powerline ice-covering becomes one of the most serious natural calamity that system of many State Grids faces.
At present, the method for ice-melt comprises heating power method, Mechanical Method and some passive de-icing methods.
Existing various heating power de-icing method is all to adopt joule heating effect deicing principle, and same transmission current higher than normal current density on ice coating wire makes the upper icing in its surface melt or come off.De-icing method commonly used has the overcurrent method, short circuit current method and direct current method.Use these methods to need large-scale deicing equipment, equipment cost is high, and transportation is installed inconvenient.
The machinery ice-melt is the manual de-icing method that makes icing self falling on the icing object of applicable mechanical external force.For example pulley one-lick and powerful vibration method.Probably make wire, shaft tower generation covibration by mechanical vibrating deicing, cause shaft tower to collapse.
Passive means do not need to refer to the external world to add ability, is the method that on engineering, use is considered in take-up, utilizes the natural conditions such as wind, terrestrial gravitation, solar radiation and variations in temperature all may cause the wire ice-melt.But passive de-icing method deicing is limited in scope.
Summary of the invention
Given this, the object of the invention is to provide a kind of safe, deicing device cheaply, and a kind of novel de-icing method also is provided simultaneously.
For solving above technical problem, technical scheme provided by the invention is, on the one hand, a kind of electromagnetic induction de-icing method is provided, easily produce sheathed at least one dead ring in icing place at power transmission line, an electromagnetic induction layer is set outside each dead ring, but this electromagnetic induction layer is ring or the coil of opening and closing, be outside equipped with a pressure sensor at electromagnetic induction layer, this pressure sensor is connected with the operating mechanism of controlling electromagnetic induction ring or coil folding; When the icing on power transmission line reached preset thickness, pressure sensor provided signal to operating mechanism, and operating mechanism is closed with electromagnetic induction ring or coil, and the electromagnetic induction ring produces subsequently heat icing is melted; Along with icing melts attenuation or disappearance, pressure sensor passes the signal to operating mechanism after sensing pressure signal, and electromagnetic induction ring or coil are opened and stopped generating heat.
On the other hand, provide a kind of electromagnetic induction deicing device, comprised a dead ring, the dead ring skin is provided with an electromagnetic induction ring, and this electromagnetic induction ring comprises a split ring, and a metal clips, and metal clips and split ring are hinged; This device also comprises a pressure sensor, and this pressure sensor is connected with operating mechanism, and operating mechanism is controlled metal clips and rotated.
Further, the opening part of described split ring is provided with the insulation protection shell.
Preferably, described operating mechanism is arranged on metal clips and insulation comprises between shell.
Preferably, described operating mechanism is arranged between metal clips and dead ring.
Preferably, described operating mechanism is arranged on the hinged place of metal clips and split ring.
Compared with prior art, a technical scheme of the present invention has following advantage:
But 1, the ice covering thickness on de-icing method Real Time Monitoring power transmission line of the present invention begins ice-melt in case just can start deicing device when ice covering thickness reaches preset thickness, and ice-melt is timely, can fully guarantee the safety of electric power transmission equipment.
2, electromagnetic induction deicing device of the present invention has utilized the charged characteristics of power transmission line self, utilizes the magnetic field around power transmission line, is translated into the heat for ice-melt.Do not need powerful ice-melting device, the cost of equipment of great number drops into, and the equipment conveying of wasting time and energy has been saved manpower, financial resources greatly.
3, electromagnetic induction deicing device volume of the present invention is little, and gravity is light, can not be the too large mechanical load of transmission of electricity circuit increase.At first this device is used for easily producing the part of icing, and at first for example power transmission line and shaft tower junction eliminate the potential safety hazard of keypoint part, and these positions are positioned at power transmission line two ends, and the power that applies to power transmission line and shaft tower is less.
4, electromagnetic induction deicing device of the present invention has adopted the insulation protection shell, and anti-sealing access to plant also freezes the hinged place, the hinder device normal operation.
Description of drawings
Fig. 1 is the front view of a preferred embodiment of the present invention.
Fig. 2 is the cutaway view of a preferred embodiment of the present invention.
Embodiment
Embodiment 1
The described a kind of electromagnetic induction de-icing method of the present embodiment is easily to produce sheathed at least one dead ring in icing place at power transmission line, and an electromagnetic induction ring is set outside each dead ring, and the electromagnetic induction ring is made by the electromagnetic induction exothermic material.But this electromagnetic induction ring is the ring of opening and closing, is made by the electromagnetic induction material.Be outside equipped with a diaphragm type pressure sensor at the electromagnetic induction ring, this pressure sensor is connected with the operating mechanism of controlling electromagnetic induction ring opening and closing.When the icing on power transmission line reached preset thickness, pressure sensor provided signal to operating mechanism, and operating mechanism is closed with the electromagnetic induction ring, and the electromagnetic induction ring produces subsequently heat icing is melted; Along with icing melts attenuation or disappearance, pressure sensor passes the signal to operating mechanism after sensing pressure signal, and the electromagnetic induction ring is opened and stopped generating heat, the ice-melt end-of-job.
Embodiment 2
The described a kind of electromagnetic induction de-icing method of the present embodiment, easily to produce sheathed at least one dead ring in icing place at power transmission line, an electromagnetic induction layer is set outside each dead ring, but this electromagnetic induction layer is the coil of opening and closing, and electromagnetic induction coil is made by the electromagnetic induction exothermic material.Be outside equipped with a pressure sensor at electromagnetic induction layer, this pressure sensor is connected with the operating mechanism of controlling the electromagnetic induction coil folding; When the icing on power transmission line reached preset thickness, pressure sensor provided signal to operating mechanism, and operating mechanism is closed with electromagnetic induction coil, and the electromagnetic induction ring produces subsequently heat icing is melted; Along with icing melts attenuation or disappearance, pressure sensor passes the signal to operating mechanism after sensing pressure signal, and electromagnetic induction coil is opened and stopped generating heat.The ice-melt end-of-job.
Embodiment 3
The electromagnetic induction deicing device of one embodiment of the present of invention is referring to Fig. 1 and Fig. 2.This electromagnetic induction deicing device comprises a dead ring 10, and dead ring 10 skins are provided with an electromagnetic induction ring, and the electromagnetic induction ring is outside equipped with a pressure sensor 30.
The electromagnetic induction ring is made by the electromagnetic induction exothermic material, comprise a split ring 20 and a metal clips 22, one end and the split ring 20 of metal clips 22 are hinged, its other end can rotate around the hinged place, when the stiff end of metal clips snapped on split ring 20, split ring 20 and metal clips 22 consisted of a closed hoop.
The opening part of split ring 20 is provided with insulation protection shell 31, wraps metal clips 22 fully, prevents that rainwater from forming icing between metal clips 22 and split ring 20, barrier metal shell fragment and split ring overlap joint.
Be below only the preferred embodiment of the present invention, should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with the claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. electromagnetic induction de-icing method, it is characterized in that, easily produce sheathed at least one dead ring in icing place at power transmission line, an electromagnetic induction layer is set outside each dead ring, but this electromagnetic induction layer is ring or the coil of opening and closing, be outside equipped with a pressure sensor at electromagnetic induction layer, this pressure sensor is connected with the operating mechanism of controlling electromagnetic induction ring or coil folding; When the icing on power transmission line reached preset thickness, pressure sensor provided signal to operating mechanism, and operating mechanism is closed with electromagnetic induction ring or coil, and the electromagnetic induction ring produces subsequently heat icing is melted; Along with icing melts attenuation or disappearance, pressure sensor passes the signal to operating mechanism after sensing pressure signal, and electromagnetic induction ring or coil are opened and stopped generating heat.
2. an electromagnetic induction deicing device, is characterized in that, comprises a dead ring (10), the dead ring skin is provided with an electromagnetic induction ring, this electromagnetic induction ring comprises a split ring (20), and a metal clips (22), and metal clips (22) is hinged with split ring (20); This device also comprises a pressure sensor (30), and this pressure sensor (30) is connected with operating mechanism (31), and operating mechanism (31) is controlled metal clips (22) and rotated.
3. electromagnetic induction deicing device according to claim 2, is characterized in that, the opening part of described split ring (20) is provided with insulation protection shell (31).
4. electromagnetic induction deicing device according to claim 3, is characterized in that, described operating mechanism (31) is arranged on metal clips (22) and insulation comprises between shell (31).
5. electromagnetic induction deicing device according to claim 2, is characterized in that, described operating mechanism (31) is arranged between metal clips (22) and dead ring (10).
6. electromagnetic induction deicing device according to claim 2, is characterized in that, described operating mechanism (31) is arranged on the hinged place of metal clips (22) and split ring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101107586A CN103151749A (en) | 2013-04-01 | 2013-04-01 | Electromagnetic induction de-icing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101107586A CN103151749A (en) | 2013-04-01 | 2013-04-01 | Electromagnetic induction de-icing method and device |
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| CN103151749A true CN103151749A (en) | 2013-06-12 |
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| CN2013101107586A Pending CN103151749A (en) | 2013-04-01 | 2013-04-01 | Electromagnetic induction de-icing method and device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534177A (en) * | 2016-01-08 | 2016-05-04 | 广东建设职业技术学院 | Intelligent wardrobe |
| CN106099751A (en) * | 2016-07-07 | 2016-11-09 | 周丽玲 | A kind of transmission line de-icing method based on action of gravity computation model |
| CN106765780A (en) * | 2017-01-11 | 2017-05-31 | 杭州源牌环境设备有限公司 | A kind of load-type ice measuring device |
| CN108168197A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
| CN108302880A (en) * | 2017-12-27 | 2018-07-20 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
| CN109217218A (en) * | 2018-10-19 | 2019-01-15 | 四川行之知识产权运营服务有限公司 | For being vortexed the heat collecting apparatus of winterized equipment |
| CN109285624A (en) * | 2018-10-19 | 2019-01-29 | 四川行之知识产权运营服务有限公司 | A kind of magnetic strength isolating device of eddy current coil |
| CN112310925A (en) * | 2020-11-23 | 2021-02-02 | 国网河南省电力公司洛阳供电公司 | Automatic snow removing device for wires and cables |
| CN112952717A (en) * | 2021-04-15 | 2021-06-11 | 重庆大学 | Deicing ring, deicing device, deicing method and system |
| CN113643866A (en) * | 2021-08-03 | 2021-11-12 | 刘朋 | Anti-freezing type power grid transmission detection device and detection method thereof |
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| JPH02294214A (en) * | 1989-05-01 | 1990-12-05 | Hitachi Cable Ltd | Snow dropper for transmission line |
| JP2008021483A (en) * | 2006-07-12 | 2008-01-31 | Viscas Corp | Snow dropping damage prevention overhead power line, and snow melting ring used for it |
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Patent Citations (5)
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| JPH02294214A (en) * | 1989-05-01 | 1990-12-05 | Hitachi Cable Ltd | Snow dropper for transmission line |
| JP2008021483A (en) * | 2006-07-12 | 2008-01-31 | Viscas Corp | Snow dropping damage prevention overhead power line, and snow melting ring used for it |
| CN201616636U (en) * | 2009-12-10 | 2010-10-27 | 湖南省电力公司超高压管理局 | Intelligent thawing device for bus portal frame of substation |
| JP2012222997A (en) * | 2011-04-12 | 2012-11-12 | Viscas Corp | Snow melting ring |
| CN202308987U (en) * | 2011-06-15 | 2012-07-04 | 蒋通军 | Automatic ice melting apparatus for high voltage power line or high voltage line lightning conductor |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534177A (en) * | 2016-01-08 | 2016-05-04 | 广东建设职业技术学院 | Intelligent wardrobe |
| CN106099751A (en) * | 2016-07-07 | 2016-11-09 | 周丽玲 | A kind of transmission line de-icing method based on action of gravity computation model |
| CN106765780A (en) * | 2017-01-11 | 2017-05-31 | 杭州源牌环境设备有限公司 | A kind of load-type ice measuring device |
| CN108168197B (en) * | 2017-12-27 | 2020-04-21 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method thereof |
| CN108168197A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
| CN108302880A (en) * | 2017-12-27 | 2018-07-20 | 青岛海尔股份有限公司 | Refrigerator and its defrosting control method |
| CN108302880B (en) * | 2017-12-27 | 2020-07-24 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method thereof |
| CN109285624A (en) * | 2018-10-19 | 2019-01-29 | 四川行之知识产权运营服务有限公司 | A kind of magnetic strength isolating device of eddy current coil |
| CN109217218A (en) * | 2018-10-19 | 2019-01-15 | 四川行之知识产权运营服务有限公司 | For being vortexed the heat collecting apparatus of winterized equipment |
| CN112310925A (en) * | 2020-11-23 | 2021-02-02 | 国网河南省电力公司洛阳供电公司 | Automatic snow removing device for wires and cables |
| CN112310925B (en) * | 2020-11-23 | 2022-02-01 | 国网河南省电力公司洛阳供电公司 | Automatic snow removing device for wires and cables |
| CN112952717A (en) * | 2021-04-15 | 2021-06-11 | 重庆大学 | Deicing ring, deicing device, deicing method and system |
| CN113643866A (en) * | 2021-08-03 | 2021-11-12 | 刘朋 | Anti-freezing type power grid transmission detection device and detection method thereof |
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Application publication date: 20130612 |