CN110595054A - Water supply system for hot water deicing of power transmission line - Google Patents
Water supply system for hot water deicing of power transmission line Download PDFInfo
- Publication number
- CN110595054A CN110595054A CN201910917701.4A CN201910917701A CN110595054A CN 110595054 A CN110595054 A CN 110595054A CN 201910917701 A CN201910917701 A CN 201910917701A CN 110595054 A CN110595054 A CN 110595054A
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- Prior art keywords
- water
- water tank
- deicing
- hot water
- supply system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/06—Portable or mobile, e.g. collapsible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/06—Arrangement of mountings or supports for heaters, e.g. boilers, other than space heating radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a water supply system for hot water deicing of a power transmission line, which comprises a water tank arranged on a movable chassis, wherein the top of the water tank is provided with a water filling port for filling cold water, the bottom of the water tank is provided with a water outlet and a water pumping channel communicated with the water outlet and extending along the lower part of the water tank, and the water pumping channel is communicated with a water outlet channel through a hot water pump; the water tank is internally provided with a plurality of clapboards to divide the internal space of the water tank into a plurality of separating areas, the lower part in the water tank is provided with a strip-shaped resistance wire group which is respectively and electrically connected with the fuel generator and/or the 380V power module of the mobile chassis, and the resistance wire passes through the plurality of clapboards and enters the plurality of separating areas to heat the water in the water tank. The movable hot water source can be provided for hot water deicing and indoor deicing tests of ground and aerial helicopter transmission lines, the problem that the conventional boiler is difficult to deice due to the fact that hot water is filled after being heated and is easy to cool is solved, and deicing efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of power grid protection, in particular to a water supply system for hot water deicing of a power transmission line.
Background
Ice disasters are natural enemies of safe operation of the power grid. The ice-coated overhead transmission line is easy to cause line galloping and insulator bridging, so that flashover occurs, tripping and power failure are caused, line disconnection and even tower collapse are caused in severe cases, and large-area long-time power failure accidents are caused. The specific heat capacity of water is large, and the ice layer can be quickly melted by utilizing hot water for deicing, so that the ice removing method is an effective deicing means. However, hot water deicing consumes a large amount of hot water, and a heat source of tens of kilowatts is required for heating 500-1000L of water to more than 90 ℃ in a short time.
Can satisfy the heating requirement at indoor mode with boiler heating, nevertheless infuse hot water to defroster and waste time and energy, easily lead to the temperature to reduce, spray can't play deicing effect on icing equipment, cold water solidification on ice layer surface can also aggravate the icing when serious. And overhead transmission line often is far away from the living area, utilizes the water source of indoor boiler heating to transport to the deicing scene, and the cooling is more showing.
At present, the hot water deicing device for the power transmission line has two modes of a ground mode and an aerial helicopter mode, and hot water deicing is difficult to implement due to the lack of a water source heating device. Therefore, the invention is urgently needed to invent a hot water deicing water supply system for the power transmission line, which provides a reliable hot water source for the hot water deicing device of the overhead power transmission line passing through the forest land of the mountain area, and ensures the safe and stable operation of the overhead power transmission line in winter.
Disclosure of Invention
The invention provides a water supply system for hot water deicing of a power transmission line, which is used for solving the technical problem that a hot water deicing device of the power transmission line is inconvenient to heat when hot water is used.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a water supply system for hot water deicing of a power transmission line comprises a water tank arranged on a movable chassis, wherein the top of the water tank is provided with a water filling port for filling cold water, the bottom of the water tank is provided with a water outlet and a water pumping channel communicated with the water outlet and extending along the lower part of the water tank, and the water pumping channel is communicated with a water outlet channel through a hot water pump;
the water tank is internally provided with a plurality of clapboards to divide the internal space of the water tank into a plurality of separating areas, the lower part in the water tank is provided with a strip-shaped resistance wire group which is respectively and electrically connected with the fuel generator and/or the 380V power module of the mobile chassis, and the resistance wire group passes through the plurality of clapboards and enters the plurality of separating areas to heat the water in the water tank.
Preferably, the water tank partition plate is perpendicular to the advancing direction of the movable chassis, the partition plates are arranged at intervals, inverted-U-shaped holes are formed in the lower edge of the water tank partition plate, and the resistance wire group penetrates through the partition plates through the inverted-U-shaped holes.
Preferably, the inner wall of the water tank is provided with a heat preservation layer, and a sewage draining outlet for cleaning and draining the water tank is further arranged below the side wall of the water tank.
Preferably, the mobile chassis is provided with a first control area serving as a head and a second bearing area serving as a body, the water tank is arranged in the second bearing area, the water pumping channel is arranged below the first control area and the second bearing area, and the fuel generator, the 380V power module and the hot water pump are arranged in the first control area; the water outlet channel extends out of the first control area to the front of the head.
Preferably, a front wheel and a rear wheel are arranged below the movable chassis; the first control area is also internally provided with a steering mechanism for controlling the steering of the front wheel, and the steering mechanism is connected with the electric control box and is controlled by an operation panel which is connected with the electric control box and is operated by a user; and a power takeoff used for acquiring power from the fuel generator is also arranged in the first control area, and the power takeoff drives the rear wheel to rotate under the control of the electric control box and the operation panel through a transmission shaft arranged at the bottom of the movable chassis and a driving device.
Preferably, a temperature sensor for measuring the water temperature in real time and a liquid level sensor for measuring the liquid level in real time are arranged in the water tank; the electric control box is respectively connected with the temperature sensor and the liquid level sensor and displays the liquid level and the temperature.
Preferably, the electronic control box is further connected with an accelerator of the fuel generator, the resistance wire group and the hot water pump respectively.
Preferably, the volume of the water tank is not less than 500L; the heating power of the resistance wire group is not less than 45 kW.
The invention has the following beneficial effects:
1. the water supply system for hot water deicing of the power transmission line can provide a movable hot water source for hot water deicing of the power transmission line of helicopters on the ground and in the air and indoor deicing tests, avoid the problem that the conventional boiler is difficult to deice due to the fact that hot water is filled after being heated and is easy to cool, and improve the deicing efficiency. And the resistance wire group can get the electric heating with fuel generator to and the cable gets the electric dual mode heating, and fuel generator gets the electric heating and can be used to the actual field application, and electric heating can be used to the laboratory test.
2. In a preferred scheme, the invention can automatically pump hot water to the deicing equipment, has high hot water adding efficiency and avoids cooling; and the deicing spray gun can be directly connected, hot water can be directly used after heating, the extraction process is avoided, and the hot water cooling is further reduced. The invention has the functions of outdoor and laboratory.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a water supply system for hot water deicing of a power transmission line according to a preferred embodiment of the present invention;
fig. 2 is a schematic view of a separator structure according to a preferred embodiment of the present invention.
The reference numerals in the figures denote:
1. moving the chassis; 2. a water tank; 3. a fuel generator; 4. a hot water pump; 5. a 380V power supply module; 6. an electric cabinet; 7. a power takeoff; 8. a steering mechanism; 9. a resistance wire group; 10. a water pumping channel; 11. a water outlet channel; 12. a partition plate; 13. a sewage draining outlet; 14. a water injection port; 15. a heat-insulating layer; 16. a drive shaft; 17. a drive device; 18. a rear wheel; 19. a front wheel; 20. an operation panel.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, the water supply system for hot water deicing of the power transmission line comprises a water tank 2 arranged on a movable chassis 1, wherein a water filling port 14 for filling cold water is arranged at the top of the water tank 2, a water outlet and a water pumping channel 10 communicated with the water outlet and extending along the lower part of the water tank 2 are arranged at the bottom of the water tank 2, and the water pumping channel 10 is communicated with a water outlet channel 11 through a hot water pump 4; a plurality of partition plates 12 are arranged in the water tank 2 to divide the internal space of the water tank 2 into a plurality of partition areas, a strip-shaped resistance wire group 9 which is respectively and electrically connected with the fuel generator 3 (in the embodiment, a diesel generator) and/or the 380V power module 5 (with an electric cable and a winding frame) of the mobile chassis 1 is arranged at the lower part in the water tank 2, and the resistance wire group penetrates through the plurality of partition plates 12 and enters the plurality of partition areas to heat water in the water tank 2. The hot water output from the outlet channel 11 of the outlet channel 11 has three directions: firstly, the ice is conveyed to a ground deicing device; secondly, conveying the helicopter into an aerial deicing device; and thirdly, directly conveying the ice to a spraying device for spraying and deicing. The movable hot water source can be provided for ground and aerial helicopter transmission line hot water deicing and indoor deicing tests, the problem that the conventional boiler is difficult to deice due to the fact that hot water is filled after being heated and is easily cooled is solved, and deicing efficiency can be improved.
In implementation, referring to fig. 2, the partition plates 12 of the water tank 2 are perpendicular to the advancing direction of the moving chassis 1, and the partition plates 12 are arranged at intervals, in this embodiment, the inside of the water tank is divided into four divided regions (compartments) by three partition plates 12, so that the instability of the moving chassis 1 caused by excessive shaking of a water source in the moving process is avoided. And the lower edge of the partition plate 12 of the water tank 2 is preferably provided with an inverted U-shaped hole, so that the resistance wire group 9 can conveniently penetrate through the partition plate 12 through the inverted U-shaped hole, and meanwhile, the water tank 2 is ensured to be completely communicated at the bottom. The resistance wire group 9 has two energy taking modes, namely, electric energy is directly obtained indoors through the 380V power supply module 5 and is used for an indoor deicing test and a laboratory test; and secondly, electric energy is obtained outdoors through a diesel generator, the electric energy is used for outdoor deicing, and the electric energy can be used for actual field application. The inner wall of the water tank 2 is provided with a heat preservation layer 15 for preserving the heat of hot water; a sewage outlet 13 for cleaning and sewage draining of the water tank 2 is also arranged below the side wall of the water tank 2.
In implementation, in order to keep stability, a first control area serving as a head and a second bearing area serving as a body are arranged on the mobile chassis 1, the water tank 2 is arranged in the second bearing area, the water pumping channel 10 is arranged below the first control area and the second bearing area, and the fuel generator 3, the 380V power module 5 and the hot water pump 4 are arranged in the first control area; the water outlet channel 11 extends from the first control area and towards the front of the head. The movable chassis 1 is used for carrying the whole system, and a front wheel 19 and a rear wheel 18 are arranged below the movable chassis 1 so as to move; a steering mechanism 8 for controlling the steering of the front wheels 19 is also arranged in the first control area, and the steering mechanism 8 is connected with the electric control box and is controlled by an operation panel 20 which is connected with the electric control box and is operated by a user; the first control area is also provided with a power takeoff 7 for obtaining power from the fuel generator 3, and the power takeoff 7 drives a rear wheel 18 to rotate under the control of an electric control box and an operation panel 20 through a transmission shaft 16 arranged at the bottom of the movable chassis 1 and a driving device 17.
The electric cabinet 6 is used as a control module for controlling an accelerator, the driving of the movable chassis 1, the heating current of the resistance wire group 9, the extraction power of the hot water pump 4 and the like. A temperature sensor for measuring water temperature in real time and a liquid level sensor for measuring liquid level in real time are arranged in the water tank 2; the electric control box 6 is also respectively connected with the temperature sensor and the liquid level sensor and displays the liquid level and the temperature.
In this embodiment, it is preferable that the volume of the water tank 2 is not less than 500L; the heating power of the resistance wire group 9 is not less than 45 kW.
In conclusion, the invention can automatically pump hot water to the deicing equipment, has high hot water adding efficiency and avoids cooling; and the deicing spray gun can be directly connected, hot water can be directly used after heating, and the extraction process is avoided, so that the hot water cooling is further reduced. The invention has the functions of outdoor and laboratory and can be widely applied to various deicing conditions of the power transmission line.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The water supply system for hot water deicing of the power transmission line is characterized by comprising a water tank (2) arranged on a movable chassis (1), wherein a water filling port (14) for filling cold water is arranged at the top of the water tank (2), a water outlet and a water pumping channel (10) communicated with the water outlet and extending along the lower part of the water tank (2) are arranged at the bottom of the water tank (2), and the water pumping channel (10) is communicated with a water outlet channel (11) through a hot water pump (4);
the water heater is characterized in that a plurality of partition plates (12) are arranged in the water tank (2) to divide the inner space of the water tank (2) into a plurality of partition areas, a strip-shaped resistance wire group (9) which is respectively and electrically connected with a fuel generator (3) and/or a 380V power module (5) of the mobile chassis (1) is arranged at the lower part in the water tank (2), and the resistance wire group (9) penetrates through the partition plates (12) and enters the partition areas to heat water in the water tank (2).
2. The water supply system for hot water deicing of power transmission lines as claimed in claim 1, characterized in that the partition plates (12) of the water tank (2) are perpendicular to the advancing direction of the moving chassis (1), the partition plates (12) are arranged at intervals, the lower edges of the partition plates (12) of the water tank (2) are provided with inverted U-shaped holes, and the resistance wire set (9) penetrates through the partition plates (12) through the inverted U-shaped holes.
3. The water supply system for hot water deicing of power transmission lines as claimed in claim 2, characterized in that the inner wall of the water tank (2) is provided with a heat insulating layer (15), and a sewage draining outlet (13) for cleaning and sewage draining of the water tank (2) is further arranged below the side wall of the water tank (2).
4. The water supply system for hot water deicing of power transmission lines according to claim 1, 2 or 3, characterized in that the mobile chassis (1) is provided with a first control area as a head and a second carrying area as a body, the water tank (2) is arranged in the second carrying area, the water pumping channel (10) is arranged below the first control area and the second carrying area, and the fuel generator (3), the 380V power module (5) and the hot water pump (4) are arranged in the first control area; the water outlet channel (11) extends out of the first control area to the front of the head.
5. Water supply system for hot water deicing of electric transmission lines according to claim 4, characterized in that under said mobile chassis (1) there are mounted front wheels (19) and rear wheels (18); the first control area is also internally provided with a steering mechanism (8) for controlling the steering of the front wheels (19), and the steering mechanism (8) is connected with the electric control box and is controlled by an operation panel (20) which is connected with the electric control box and is operated by a user; and a power takeoff (7) used for acquiring power from the fuel generator (3) is further arranged in the first control area, and the power takeoff (7) drives the rear wheel (18) to rotate under the control of the electric control box and the operation panel (20) through a transmission shaft (16) arranged at the bottom of the movable chassis (1) and a driving device (17).
6. The water supply system for hot water deicing of electric transmission lines according to claim 5, characterized in that a temperature sensor for measuring water temperature in real time and a liquid level sensor for measuring liquid level in real time are installed in said water tank (2); the electric control box (6) is respectively connected with the temperature sensor and the liquid level sensor and displays the liquid level and the temperature.
7. The water supply system for hot water deicing of power transmission lines as claimed in claim 5, wherein the electronic control box is further connected with an accelerator of the fuel generator (3), the resistance wire set (9) and the hot water pump (4) respectively.
8. Water supply system for hot water deicing of electric transmission lines according to claim 5, characterized in that the volume of said water tank (2) is not less than 500L and the heating power of the resistive wire set (9) is not less than 45 kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917701.4A CN110595054A (en) | 2019-09-26 | 2019-09-26 | Water supply system for hot water deicing of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917701.4A CN110595054A (en) | 2019-09-26 | 2019-09-26 | Water supply system for hot water deicing of power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110595054A true CN110595054A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917701.4A Pending CN110595054A (en) | 2019-09-26 | 2019-09-26 | Water supply system for hot water deicing of power transmission line |
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| Country | Link |
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| CN (1) | CN110595054A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04299013A (en) * | 1991-03-12 | 1992-10-22 | Mitsubishi Electric Corp | Ice/snow removing deivce for power-transmission line |
| CN1101090A (en) * | 1993-08-09 | 1995-04-05 | 陈国清 | High-efficiency energy-saving cleaning vehicle of sweeping-up snow and melting ice |
| JPH07268826A (en) * | 1994-03-30 | 1995-10-17 | Yukihiko Nitta | Behicle equipped with thawing structure |
| CN201162201Y (en) * | 2008-03-06 | 2008-12-10 | 李蒙军 | Ice-breaking vehicle by dissolving |
| CN101483330A (en) * | 2009-01-23 | 2009-07-15 | 中国科学院电工研究所 | Microwave hot vapor de-icing apparatus and de-icing method |
| CN103129746A (en) * | 2011-11-22 | 2013-06-05 | 随州市东正专用汽车有限公司 | Plane deicing vehicle heated in nanometer mode |
| CN104029822A (en) * | 2014-06-26 | 2014-09-10 | 山东太古飞机工程有限公司 | Ice removing and preventing device of airport |
| CN204760975U (en) * | 2015-06-10 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | From distribution lines in electrified source direct current ice -melt device |
| CN205791408U (en) * | 2016-06-27 | 2016-12-07 | 大唐山东烟台电力开发有限公司 | A kind of overhead transmission line deicing device |
| CN106329450A (en) * | 2016-11-25 | 2017-01-11 | 淅川县电业局 | On-line de-icing device for power transmission line |
| CN106410724A (en) * | 2016-11-25 | 2017-02-15 | 淅川县电业局 | Power transmission and transformation line crystal cleaning device |
| CN107800100A (en) * | 2016-10-10 | 2018-03-13 | 湖南湘讯企业管理有限公司 | A kind of cable de-icing device |
| CN107988985A (en) * | 2017-12-19 | 2018-05-04 | 颜晓燕 | A kind of asphalt pavement maintanance truck with snow removing deicing function |
| CN207977712U (en) * | 2018-01-24 | 2018-10-16 | 何俊池 | A kind of deicer for power transmission line |
-
2019
- 2019-09-26 CN CN201910917701.4A patent/CN110595054A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04299013A (en) * | 1991-03-12 | 1992-10-22 | Mitsubishi Electric Corp | Ice/snow removing deivce for power-transmission line |
| CN1101090A (en) * | 1993-08-09 | 1995-04-05 | 陈国清 | High-efficiency energy-saving cleaning vehicle of sweeping-up snow and melting ice |
| JPH07268826A (en) * | 1994-03-30 | 1995-10-17 | Yukihiko Nitta | Behicle equipped with thawing structure |
| CN201162201Y (en) * | 2008-03-06 | 2008-12-10 | 李蒙军 | Ice-breaking vehicle by dissolving |
| CN101483330A (en) * | 2009-01-23 | 2009-07-15 | 中国科学院电工研究所 | Microwave hot vapor de-icing apparatus and de-icing method |
| CN103129746A (en) * | 2011-11-22 | 2013-06-05 | 随州市东正专用汽车有限公司 | Plane deicing vehicle heated in nanometer mode |
| CN104029822A (en) * | 2014-06-26 | 2014-09-10 | 山东太古飞机工程有限公司 | Ice removing and preventing device of airport |
| CN204760975U (en) * | 2015-06-10 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | From distribution lines in electrified source direct current ice -melt device |
| CN205791408U (en) * | 2016-06-27 | 2016-12-07 | 大唐山东烟台电力开发有限公司 | A kind of overhead transmission line deicing device |
| CN107800100A (en) * | 2016-10-10 | 2018-03-13 | 湖南湘讯企业管理有限公司 | A kind of cable de-icing device |
| CN106329450A (en) * | 2016-11-25 | 2017-01-11 | 淅川县电业局 | On-line de-icing device for power transmission line |
| CN106410724A (en) * | 2016-11-25 | 2017-02-15 | 淅川县电业局 | Power transmission and transformation line crystal cleaning device |
| CN107988985A (en) * | 2017-12-19 | 2018-05-04 | 颜晓燕 | A kind of asphalt pavement maintanance truck with snow removing deicing function |
| CN207977712U (en) * | 2018-01-24 | 2018-10-16 | 何俊池 | A kind of deicer for power transmission line |
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Application publication date: 20191220 |
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| RJ01 | Rejection of invention patent application after publication |