CN100578883C - Self-heating ice and snow-proof aerial electric power line for securing steady operation of electric network without power-off - Google Patents
Self-heating ice and snow-proof aerial electric power line for securing steady operation of electric network without power-off Download PDFInfo
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- CN100578883C CN100578883C CN200810093118A CN200810093118A CN100578883C CN 100578883 C CN100578883 C CN 100578883C CN 200810093118 A CN200810093118 A CN 200810093118A CN 200810093118 A CN200810093118 A CN 200810093118A CN 100578883 C CN100578883 C CN 100578883C
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- heating wire
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 52
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract 3
- 238000012544 monitoring process Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 239000012774 insulation material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention relates to an overhead power line of power grids, in particular to an automatic heating anti-icing overhead power line which ensures the uninterrupted power supply and the stable operation of the power grids. The overhead power line adopts the technique that: the structure comprises an overhead power conducting wire provided with a plurality of insulation protection heating cords, a line temperature and humidity monitoring and controlling device, a micro processing protective system, a relay protection device, an electronically-controlled disconnecting switch, a heating cord leader switch, a power supply control and protection switch, a heating cord power supply device, a temperature monitoring and control regulating device, a heating cord leader cable and a line high voltage switch, etc. The conducting wire adopts compound material multi-strand conductors which are all provided with a plurality of heating cords and insulation materials in the insulation protection layer of the heating cords have the function of insulation and protection between the conducting wires. The overhead power line further improves the anti-icing capability of the power grids, can melt ice without power-off, guarantees the continuous, safe, stable and normal operation of the power grids and has internationally advanced scientific technique standard. The technique is called QDYRKX for short.
Description
One, technical field
The present invention relates to the overhead power line of power network, guarantee that particularly the electrical network stable operation that do not have a power failure heats the anti-ice-snow overhead power line automatically.
Two, background technology
At present, the overhead power line of China's power network is in high and cold, wind and snow, sleet area, the normal overhead power line icing phenomenon that takes place, cause down bar, fall accidents such as base, iron tower cave in, broken string, can't normal power supply, even cause large-area power failure, power network safety operation is caused significant impact, and have a strong impact on the construction of people's lives, railway traffic transportation, industrial and agricultural production, national economy, and cause casualties in the artificial deicing, the restoration and reconstruction difficulty greatly.Particularly in 50 years or a-hundred-year snowstorm, can cause the economic loss of hundreds of hundred million to national grid, cause several hundred billion yuan heavy losses, as in January, 2008 this snowstorm to national economy, cause more than 1,000 hundred million yuan of direct losses, indirect loss incalculable consequence to national economy.
In order to solve the icing problem of power network overhead power line, improve and guarantee power network safety operation, heat the overhead power line of anti-ice-snow automatically except strengthening improving the design of electrical network anti-disaster ability, also will invent guaranteeing the electrical network safe and stable operation that do not have a power failure.The present invention is specially adapted in the central hub district, the backbone for generating of ice and snow area power network, the construction of important trunk railway, national defence power supply network.
Three, summary of the invention
The technical problem to be solved in the present invention is need not have a power failure at ice and snow extremely frigid zones power network overhead transmission line to heat anti-ice-snow automatically, how to guarantee the technical problem of power network safety operation.
In order to address the above problem, the technology that the present invention adopts is:
Its equipment includes the composite material multiply and is twisted into the aerial condutor main body, main-body structure is for all being equipped with many heating wire in lead: main with heating wire and standby heating wire, heating wire is provided with insulating protective layer, in order to heating wire is played insulation protection, the lead centre is a steel core wire, being used to improve the mechanical strength of lead, is multiply ladle aluminium stranded conductor around heating wire, the stranded formation of aluminum steel twisted wire that shields and conduct electricity very well in order to the intensity that improves heating wire; Automatically controlled isolating switch, heating wire lead-in wire switch, power supply control protection switch, electrothermal wire power's device; the measurement and control of temperature adjusting device, heating wire leader cable, circuit high-voltage switch gear; the warm and humid measure and control device of circuit, the MICROCOMPUTER PROCESSING protection system, elements such as protective relaying device are formed.Utilize main heating wire and the standby heating wire element used, adopt between plain conductor, two-conductor line or many leads and use the different modes of connection respectively, set up the technical scheme that can make heating wire constitute a full current loop.
The present invention has further improved the ability of electrical network anti-ice-snow, can avoid artificial deicing fully, also need not to have a power failure to carry out ice-melt, has improved electrical network greatly and has guaranteed that under the ice climate condition its lasting safety and stability moves normally.
Four, description of drawings
Concrete structure of the present invention is provided by the following drawings:
Fig. 1 is that the composite material multiply that proposes according to the present invention is twisted into the organigram that has many (as 3) heating wire aerial condutor cross sections in the aerial condutor.
Sign in the accompanying drawing is represented respectively:
1, the composite material multiply is twisted into aerial condutor main body 2, main with heating wire 2-1, standby heating wire 3, the insulating protective layer 4 of heating wire, steel core wire 5, ladle aluminium stranded conductor 6, aluminum steel twisted wire
Fig. 2 is the technical scheme organigram that has 3 heating wire plain conductor heating wire modes of connection in the QDYRKX technology aerial condutor that proposes according to the present invention.
Fig. 3 is the technical scheme organigram that has the heating wire mode of connection between 2 heating wire two-conductor lines in the QDYRKX technology aerial condutor that proposes according to the present invention.
Sign in Fig. 2, Fig. 3 accompanying drawing is represented respectively:
1, the composite material multiply is twisted into aerial condutor main body 2, main with electric heating 2-1, standby heating wire 7, automatically controlled isolating switch 8, heating wire lead-in wire switch 9, power supply control protection switch 10, electrothermal wire power's device 11, measurement and control of temperature adjusting device 12, heating wire leader cable 13, circuit high-voltage switch gear 14, the warm and humid measure and control device 15 of circuit, MICROCOMPUTER PROCESSING protection system 16, protective relaying device
A represents that electrical network supplies to send electric side B and represents the electric network terminal side
Five, embodiment
The composite material multiply is twisted into aerial condutor and can adopts and all put many heating wire in the composite material rope-lay strand; with playing the protection insulation in the insulating protective layer of heating wire between insulating material and lead; consider that 3 of economic and practical heating wire are the most suitable, a main usefulness, two are standby.Though its manufacturing process is comparatively complicated, in order to ensure do not have a power failure anti-ice-snow safe and stable operation and avoid the heavy losses of person property's economy of electrical network, it still is adapted at most the use of ice and snow extremely frigid zones.
Operation principle of the present invention: when 0-2 ℃ of temperature decline; humidity reaches in the time of can freezing; the warm and humid measure and control device of circuit detects overhead power line and has reached icing condition; send warning through the MICROCOMPUTER PROCESSING protection system; the protective relaying device action automatically controlled isolating switch that closes automatically; the electric network terminal side of closing earlier heating wire lead-in wire switch; the grid transmission side is power turn-on control protection switch again; make heating wire constitute a complete current circuit; by the power supply of electrothermal wire power's device the heating wire in the aerial condutor is heated; make line temperature remain on 20-30 ℃ by the measurement and control of temperature adjusting device; thereby get the effect of guaranteeing not have a power failure electrical network safe and stable operation heating anti-ice-snow automatically; need not tripping circuit two side high-voltage switch gears has a power failure circuit is heated deicing; the processing of ice-melt so just can guarantee electrical network normally operation in ice climate.
The present invention has further improved the ability of electrical network anti-ice-snow, can avoid artificial deicing fully, also need not to have a power failure to carry out ice-melt, has improved electrical network greatly and has guaranteed that under the ice climate condition lasting safety and stability normally moves.The present invention has scientific and technological level leading in the world, hopes the national grid construction strengthen the input and the use of this respect.
Claims (2)
1, a kind ofly guarantee that the electrical network stable operation that do not have a power failure heats the anti-ice-snow overhead power line automatically, the equipment that it is characterized in that it includes the composite material multiply and is twisted into aerial condutor main body (1), main-body structure is for all being equipped with many heating wire in lead: main with heating wire (2) and standby heating wire (2-1), heating wire is provided with insulating protective layer (3), in order to heating wire is played insulation protection, the lead centre is steel core wire (4), be used to improve the mechanical strength of lead, around heating wire is multiply ladle aluminium stranded conductor (5), the stranded formation of aluminum steel twisted wire (6) that shields and conduct electricity very well in order to the intensity that improves heating wire; Automatically controlled isolating switch (7); heating wire lead-in wire switch (8); power supply control protection switch (9); electrothermal wire power's device (10), measurement and control of temperature adjusting device (11), heating wire leader cable (12); circuit high-voltage switch gear (13); the warm and humid measure and control device of circuit (14), MICROCOMPUTER PROCESSING protection system (15), protective relaying device elements such as (16) is formed.
2, a kind ofly guarantee that the electrical network stable operation that do not have a power failure heats the anti-ice-snow overhead power line automatically, it is main with heating wire (2) and standby heating wire (2-1) element to it is characterized in that it utilizes, adopt the plain conductor master to use the heating wire mode of connection, set up the technical scheme that can make heating wire constitute a full current loop with main between the heating wire mode of connection or two-conductor line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810093118A CN100578883C (en) | 2008-02-08 | 2008-02-08 | Self-heating ice and snow-proof aerial electric power line for securing steady operation of electric network without power-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810093118A CN100578883C (en) | 2008-02-08 | 2008-02-08 | Self-heating ice and snow-proof aerial electric power line for securing steady operation of electric network without power-off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101295863A CN101295863A (en) | 2008-10-29 |
| CN100578883C true CN100578883C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810093118A Active CN100578883C (en) | 2008-02-08 | 2008-02-08 | Self-heating ice and snow-proof aerial electric power line for securing steady operation of electric network without power-off |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9955529B2 (en) | 2009-01-06 | 2018-04-24 | Access Business Group International Llc | Smart cookware |
| CN102136710B (en) * | 2011-01-11 | 2013-02-27 | 刘启端 | Self-heating deicing system of high-tension transmission lines |
| RU2470433C1 (en) * | 2011-05-31 | 2012-12-20 | Государственное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (КГЭУ) | Method to detect glazed frost effects on wires of power transmission line |
| RU2494511C1 (en) * | 2012-04-27 | 2013-09-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") | Method to monitor sagging of power transmission line wire |
| CN108316146A (en) * | 2018-03-06 | 2018-07-24 | 无锡法尔胜悦能动力有限公司 | A kind of bridge road cable and its heating control apparatus |
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| Publication number | Publication date |
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| CN101295863A (en) | 2008-10-29 |
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Effective date of registration: 20101130 Address after: 350003 Gulou District, Fujian, Fuzhou No. 54 Road, No. 257 Co-patentee after: Huang Canrong Patentee after: Fujian Electric Power Co., Ltd. Address before: 364100, Fujian City, Yongding province Fu town Fu City Substation Patentee before: Huang Canrong |
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Owner name: FUJIAN ELECTRIC POWER CO., LTD. HUANG CANRONG Free format text: FORMER OWNER: HUANG CANRONG Effective date: 20121214 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: FUJIAN ELECTRIC POWER CO., LTD. Effective date: 20121214 |
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Effective date of registration: 20121214 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Fujian Electric Power Co., Ltd. Patentee after: Huang Canrong Address before: 350003 Gulou District, Fujian, Fuzhou No. 54 Road, No. 257 Patentee before: Fujian Electric Power Co., Ltd. Patentee before: Huang Canrong |