CN101621192A - Method for preventing and removing ice of power circuit by adopting electrical heating cable matched with anti-icing protective belt - Google Patents
Method for preventing and removing ice of power circuit by adopting electrical heating cable matched with anti-icing protective belt Download PDFInfo
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- CN101621192A CN101621192A CN200810073652A CN200810073652A CN101621192A CN 101621192 A CN101621192 A CN 101621192A CN 200810073652 A CN200810073652 A CN 200810073652A CN 200810073652 A CN200810073652 A CN 200810073652A CN 101621192 A CN101621192 A CN 101621192A
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Abstract
The invention provides a method for preventing and melting ice of a power circuit by an electrical heating cable matched with an anti-icing protective belt, which has simple and reasonable structure and convenient assembly and disassembly. The anti-icing protective belt is sewed by a fire retardant insulation fiber cloth, has different specifications according to different sizes of covered lead wires and equipment materials, and is provided with an exposed layer made of anti-icing paint so as to facilitate external deicing of the protective belt. Through supplying different voltages for the two-conductor electrical heating cable covered by the protective belt (voltage regulation can be realized by temperatures of the power lead wires and the equipment materials and other field conditions observed by an inspector through an infrared temperature measuring device, and through controlling the electrical heating cable to supply different voltages by a remote switch), the method can achieve the aim of maintaining the temperature of the protected circuit lead wires and the power equipment materials to be between 5 and 35 DEG C, and plays roles in preventing ice and removing ice.
Description
Technical field
The present invention relates to a kind of power circuit ice control, specifically is a kind of power circuit anti-icing and deicing method.
Background technology
Because abominable ice storm weather causes powerline ice-covering to increase the weight of and the bar that breaks down, thereby causes large-area power-cuts, in China's ice damage in 2008, the electric power transmission line of southern most laboratories has all caused heavy losses.The present ice control of electric power transmission line divides anti-icing and deices two classes, be negative means and mechanical means, negative means promptly adopts hates ice coating, and antiicing coating commonly used has: polytetrafluoroethylene, fluorinated ethylene propylene (FEP), grease and oils, salt adhesive layer etc. utilizes natural force to prevent that accumulated ice and promotion from deicing; Mechanical means is deicing apparatus and the anti-icing equipment that relies on extra power, and mode commonly used has: adopt steam, oscillator, steel brush, induction coil, haulage chain on lead, and adopt extreme load electric current etc.For now, an effective and economic method that prevents powerline ice-covering is not arranged also, in case the perhaps good mode of corresponding removing accumulated ice behind the icing.
Summary of the invention
The technical issues that need to address of the present invention are, overcome disadvantages of background technology, provide a kind of simple and reasonable, and the heating cable of easy accessibility cooperates the anti-icing de-icing method of anti-icing boundary belt.Anti-icing boundary belt of the present invention adopts the fire-retardant heat insulation fiber cloth to make and forms, and the specification of boundary belt will be different according to lead that is wrapped up and the difference of equipment and materials size, and the boundary belt exposed layer adopts antiicing coating to be beneficial to the boundary belt skin and deices.Pass to (the adjustment of voltage of different voltages by the two-conductor line heating cable of wrapping for protected band; field conditions such as electrical lead that can observe by the far infrared temperature measuring equipment by the floor manager and equipment and materials temperature; inserting different voltage by remote control switch control heating cable realizes); remain between 5 ℃～35 ℃ thereby reach protected circuit lead and power equipment material temperature, to play anti-icing and to remove ice action.
Technical scheme
The technical solution adopted for the present invention to solve the technical problems:
First; heating cable cooperates the implementation procedure of the anti-icing technology of anti-icing boundary belt to be; when eternal frost climate appears in the power circuit location; (this adjustment can be maked an inspection tour situation according to the scene between 5 ℃～35 ℃ by making power line lead that protected band wraps or other electric equipment material holding temperature for two-conductor line heating cable energising in the boundary belt; thereby the heating power that changes the different voltages change heating cables that impose on heating cable by remote control switch is realized); to guarantee that line conductor and electric equipment material self do not produce frost; protect cut-layer outside the boundary belt and drop to, then be used for reducing its surperficial accumulated ice thickness by antiicing coating from the ice and snow that sky descends slowly and lightly.
Second; two-conductor line heating cable power supply in the anti-icing boundary belt of circuit heating cable is supplied by the circuit dedicated transformer; transformer 10kv side power supply take from transmission line through the area nearby 10kv distribution line, the distribution capacity of heating cable is pressed power line conductive cross-sectional area 〉=300mm
2Every configuration rated power is heating cable, the power line conductive cross-sectional area 〉=150mm of every meter 15w
2≤ 240mm
2Every configuration rated power is heating cable, the power line conductive cross-sectional area 〉=95mm of every meter 12w
2≤ 120mm
2Every configuration rated power is the heating cable of every meter 8w.The setting of heating cable power supply circuit dedicated transformer, install one by≤6km configuration, draw behind electric power source distribution device on the overhead line structures from step down side by power line, use the ribbon heater power supply of heating cable and lead suspension insulator and conductor spacer respectively to the about 3 kilometers long circuit in circuit both sides.Certain 500kv overhead transmission line of example, lotus root is closed 2 on lightning conducter, three-phase line is quadripartion 400mm
2Lead, then per 6 kilometers to locate to need the transformer capacities of configuration be 1380kw, wherein: 1. 12 of line conductors need capacity 1080kw, 2. lotus root is closed 2 on lightning conducter and needs capacity 180kw, 3. insulator and conductor spacer each need 120kw approximately by the 1kw calculation.
The 3rd, circuit two-conductor line heating cable power supply circuit dedicated transformer be configured to 10kv/1.0kv single-phase transformer with the No-load changer switch that shakes control, design of transformer is the heating cable that a phase on the line of force road that only powers after circuit heating cable power supply line is drawn by single-phase transformer is mainly considered in single-phase change, the heating cable of other two-phase in addition by the single-phase transformer confession of 2 platform independent, makes heating cable power supply line not relate to the high voltage technique problem that need bear power line route voltage respectively; The transformer secondary output rated voltage is designed to 1.0kv and draws and connect the power line lead and select the cross section and reduce long distance electricity (power lead that about 3 kilometers long heating cables connect) and produce the influence of supply voltage landing to heating power from reducing heating cable; Special-purpose in addition single-phase transformer secondary side need adopt earth-free mode and transformer body to adopt the insulation that is equal to corresponding transmission line electric pressure to suspend and install, with the caused safety problem of high voltage induced electricity that prevents that anti-icing boundary belt from occurring because of parcel electrification in high voltage lead; Transformer secondary output single-phase voltage is by 600 volts, 700 volts, 800 volts, 900 volts, 1000 volts 5 system level manufacture, 194 meters of two stamen heating cables of every meter 15w heating power when above-mentioned 5 electric pressures is respectively 1047w, 1425w, 1862w, 2357w and 2910w as calculated, selects different heating powers to make things convenient under the different climatic environments in different regions.
The 4th; the anti-icing boundary belt heating-wire of shaft tower power supply is supplied by shaft tower dedicated transformer (10kv/0.4kv); the transformer distribution capacity needs 10kw to calculate by every basic iron tower; this transformer body need not adopt insulation to suspend and install; transformer be configured to 10kv/0.4kv three-phase transformer with the No-load changer switch that shakes control; transformer secondary output single-phase voltage range of regulation is by 100 volts, 125 volts, 150 volts, 200 volts, 220 volts 5 system level manufacture, so that regulate different heating powers.
The 5th, the anti-icing boundary belt of power circuit heating cable drops in the late December in every year and installs and uses, and removes the mid-March of next year and withdraws from use, so need not consider to take special lightning-protection engineering.
Description of drawings
Fig. 1 is for route protection band two-conductor line heating cable power transformer installation diagram;
Among the figure: 1; band remote control No-load changer (10kv/1.0kv) 10kv power transformer; 2; transformer output 1.0kv power line (single-phase two wires); 3; 1.0kv power line (single-phase two wires) is supporting insulator fixedly; 4; boundary belt two-conductor line heating cable lead draws and connects power circuit coupler (single-phase two wires one is advanced six and gone out); 5; the electric power transmission line suspension insulator; 6; the power line lead that protected band wraps; 7; the power transmission line line pole tower; 8; bearing is isolated in the transformer stand insulation that is equal to electric pressure with transmission line; 9; 10kv outdoor switch mounting rod; 10; the band protection equipment for transformer; the outdoor circuit breaker of the 10kv of band remote control, 11; the 10kv power circuit.
Fig. 2 is for shaft tower boundary belt two-conductor line heating cable power transformer installation diagram;
Among the figure: 1; band remote control No-load changer (10kv/0.4kv) 10kv power transformer; 2; transformer output 0.4kv power supply (three-phase and four-line) cable; 3; 0.4kv power supply (three-phase and four-line) cable distribution box; 4; 0.4kv power supply (three-phase and four-line) power line; 5; the heating cable power line draws and connects power circuit coupler (every basic shaft tower install); 6; the heating cable power line; 7; the electric power transmission line suspension insulator; 8; the power line lead that protected band wraps; 9; the electric power line pole tower tower material that protected band wraps; 10; transformer stand bearing; 11; 10kv outdoor switch mounting rod; 12; the band protection equipment for transformer; the outdoor circuit breaker of the 10kv of band remote control, 13; the 10kv power circuit.
Fig. 3 is the profile of boundary belt when wrapping protected power transmission line line conductor;
Among the figure: 1, two-conductor line heating cable; 2, the anti-icing boundary belt PVC hold-down support of insulation; 3, protected power transmission line line conductor; 4, heating-wire connects the 1.0kv power lead (single-phase two wires is totally 3 groups of 6 lines) of usefulness; 5, boundary belt is connected chock with the PVC hold-down support, and 6, boundary belt is connected the wedge mould with the PVC hold-down support, 7, the bonding length glue of boundary belt boot band particle; 8, boundary belt exposes the antiicing coating layer, and 9, fire-retardant warming fiber layer of cloth.
Fig. 4 is that PVC hold-down support master looks schematic diagram; The A of Fig. 4 is to schematic diagram;
Among the figure: 1, two-conductor line heating cable fixing hole; 2, piece connects slot about the PVC hold-down support; 3, the two-conductor line heating cable connects 1.0kv power lead (single-phase two wires is the totally 3 groups of 6 lines) fixing hole of usefulness; 4, boundary belt is connected the wedge mould with the PVC hold-down support; 5, protected electric power transmission line wire guide, 6, PVC hold-down support piece up and down.
Fig. 5 is the profile of boundary belt when wrapping protected power transmission line line pole tower angle steel;
Among the figure: 1, two-conductor line heating cable, 2, fire-retardant warming fiber layer of cloth, 3, the two-conductor line heating cable connects 220 volts of power leads of usefulness, 4, protected circuit iron tower tower material angle steel, 5, boundary belt exposes the antiicing coating layer, 6, the bonding length glue of boot band particle.
Fig. 6 is a two-conductor line heating cable structural map;
Among the figure: 1, heating Contra wire, 2, the PEX insulating barrier, 3, the netted screen of copper wire, 4, the PVC restrictive coating.
Fig. 7 is that the boundary belt master looks schematic diagram; The A of Fig. 7 is to schematic diagram;
Among the figure: 1, the fire-retardant warming fiber cloth internal layer of boundary belt, 2, boundary belt is connected chock with the PVC hold-down support, 3, boundary belt installs the short glue particle of boot band adhesive glue, 4, boundary belt installs the long glue particle of boot band adhesive glue, 5, boundary belt exposes the antiicing coating layer.
Fig. 8 is that the ribbon heater wraps protected electric power transmission line suspension insulator schematic diagram;
Among the figure: 1, electric power transmission line suspension insulator skirt, 2, hang gold utensil on the circuit suspension insulator, 3, the ribbon heater, 4, the circuit suspension insulator hangs gold utensil down.
Fig. 9 is the ribbon heater organigram;
Among the figure: 1, the ribbon heater connects jump ring, and 2, outsourcing silicon rubber, 3, the silicon rubber lead.
Embodiment
In figure one illustrated embodiment, the 10kv power supply is switched to the single-phase 10kv transformer of power circuit heating cable power supply (1) through introducing circuit (11) by transformer 10kv power supply vacuum switch (10).Single-phase transformer 1.0kv out-put supply is through uniline lead (2) and 1.0kv output uniline lead supporting insulator (3); after delivering to power circuit heating cable power supply lead coupler (4), insert heating cable power line confession circuit heating cable (6) power supply that protected band wraps.Single-phase transformer stand insulation isolation bearing (8) plays a part isolation and prevents that introducing the power circuit high voltage through the 1.0kv lead seals in distribution line.
In figure two illustrated embodiments, the 10kv power supply is switched to shaft tower heating cable power supply three-phase and four-line 10kv transformer (1) through introducing circuit (13) by 10kv power supply vacuum switch (12).Three-phase transformer 0.4kv out-put supply is through three-phase and four-line low-voltage cable (2) and three-phase and four-line 0.4kv cable distribution box (3); draw after tower 0.4kv power lead (4) delivers to shaft tower heating cable power supply lead coupler (5) from cable distribution box, insert heating cable power line that protected band wraps for shaft tower heating cable (6) power supply.Other shaft tower electricity consumption power supply is inserted by three-phase and four-line low-voltage cable (14).
In figure three illustrated embodiments; anti-icing boundary belt inserts PVC hold-down support connection wedge mould (6) by self connecting chock (5); through boot band adhesive glue length particle (7) with the boundary belt internal layer just heat-insulating and fire-proof fiber layer of cloth (9) press close to PVC hold-down support (2) and wrap up in and be rolled into garden shape; hold after by PVC hold-down support hole (1) 1 of heating cable being penetrated; by PVC hold-down support hole (4) heating cable is inserted and to hold after 3 groups 6 of power lines penetrate, PVC hold-down support hole (3) is the power transmission line line conductor that penetrates.It is the antiicing coating layer that anti-icing boundary belt is wrapped up in cut-layer (8).
In figure four illustrated embodiments, the PVC hold-down support by about (6) half block form, to go up half block during installation earlier and be enclosed within power line lead top, to descend then half block insert in the lead bottom half block slot (2) fixing after, hold after again heating cable and heating cable power line being passed hole (1), (3) respectively.The thick 19mm of PVC hold-down support is used generally at 700mm apart from installing 1 with boundary belt.
In figure five illustrated embodiments, by boundary belt internal layer (2) heating cable (1), heating cable power line (3), shaft tower tower material angle steel (4) are wrapped, boundary belt is pressed close to the back banding by the effect and the tower material of adhesive glue particle (6).
In figure eight illustrated embodiments, the skin of the anti-icing employing manufacturer production of line insulator is that the dedicated electric-thermal band (3) of silicon rubber is enclosed within on the shell body, and the ribbon heater power supply is connected on lead heating cable power line.
Claims (4)
1, power circuit adopts heating cable to cooperate the anti-icing and deicing method of anti-icing boundary belt; it is characterized in that: anti-icing boundary belt adopts the fire-retardant heat insulation fiber cloth to make and forms; the specification of boundary belt will be different according to lead that is wrapped up and the difference of equipment and materials size, and the boundary belt exposed layer adopts antiicing coating to be beneficial to the boundary belt skin and deices.Pass to (the adjustment of voltage of different voltages by the two-conductor line heating cable of wrapping for protected band; field conditions such as electrical lead that can observe by the far infrared temperature measuring equipment by the floor manager and equipment and materials temperature; inserting different voltage by remote control switch control heating cable realizes); remain between the 5C °～35C ° thereby reach protected circuit lead and power equipment material temperature, anti-icing and remove ice action to play power circuit.
2, anti-icing and deicing method according to claim 1, it is characterized in that: the power supply of the used heating cable of power line lead is 10kv single-phase transformer independently, the power supply of three-phase power line conductor and this mutually used line insulator and the line segregation rod heating cable that disposes is powered by the 10kv single-phase transformer of 3 platform independent respectively, to eliminate the high-tension influence of power circuit.
3, anti-icing and deicing method according to claim 1; it is characterized in that: anti-icing boundary belt internal layer is the fire-retardant heat insulation fiber cloth; the boundary belt exposed layer adopts antiicing coating, and boundary belt adopts the adhesive glue particle to install and remove with convenient when cooperating the parcel lead with the PVC hold-down support.
4, anti-icing and deicing method according to claim 1 is characterized in that: power line lead suspension insulator and conductor spacer adopt special ribbon heater parcel protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810073652A CN101621192A (en) | 2008-07-02 | 2008-07-02 | Method for preventing and removing ice of power circuit by adopting electrical heating cable matched with anti-icing protective belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810073652A CN101621192A (en) | 2008-07-02 | 2008-07-02 | Method for preventing and removing ice of power circuit by adopting electrical heating cable matched with anti-icing protective belt |
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| CN101621192A true CN101621192A (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810073652A Pending CN101621192A (en) | 2008-07-02 | 2008-07-02 | Method for preventing and removing ice of power circuit by adopting electrical heating cable matched with anti-icing protective belt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208790A (en) * | 2010-03-31 | 2011-10-05 | 江晓湖 | Anti-icing and deicing method for power line by using airbag anti-icing protective belt |
| CN107359578A (en) * | 2017-08-31 | 2017-11-17 | 黄河科技学院 | Active anti-icing transmission line of electricity system |
| CN107658998A (en) * | 2016-07-25 | 2018-02-02 | 刘国镔 | A kind of 500kV circuits wireless power transmission electricity getting device |
| 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 |
-
2008
- 2008-07-02 CN CN200810073652A patent/CN101621192A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208790A (en) * | 2010-03-31 | 2011-10-05 | 江晓湖 | Anti-icing and deicing method for power line by using airbag anti-icing protective belt |
| CN107658998A (en) * | 2016-07-25 | 2018-02-02 | 刘国镔 | A kind of 500kV circuits wireless power transmission electricity getting device |
| CN107359578A (en) * | 2017-08-31 | 2017-11-17 | 黄河科技学院 | Active anti-icing transmission line of electricity system |
| CN107359578B (en) * | 2017-08-31 | 2023-06-09 | 黄河科技学院 | Active anti-icing power transmission line system |
| 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 |
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Open date: 20100106 |