CN111894336A - A transmission line corner iron tower for preventing freeze - Google Patents
A transmission line corner iron tower for preventing freeze Download PDFInfo
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- CN111894336A CN111894336A CN202010924953.2A CN202010924953A CN111894336A CN 111894336 A CN111894336 A CN 111894336A CN 202010924953 A CN202010924953 A CN 202010924953A CN 111894336 A CN111894336 A CN 111894336A
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- transmission line
- tower body
- insulating
- power transmission
- line corner
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a power transmission line corner iron tower for preventing icing, which comprises a tower body and a cross arm, wherein the cross arm comprises two cross supports which are fixedly arranged on the upper section of the tower body from top to bottom in sequence, each cross support is of a truss structure, a chord member and a web member of each cross support respectively comprise an insulating inner core and an insulating outer layer, an interlayer is formed between each insulating inner core and each insulating outer layer, and an insulating filler is filled in each interlayer; the tower body includes four support columns and connects the connecting rod between each support column, support column and connecting rod are the angle steel and inboard all laminating is provided with the heat pipe that is used for heating the deicing. The heat conduction pipe is arranged close to the inner surfaces of the support columns and the connecting rods, heat is transferred to the support columns and the connecting rods, ice attached to the support columns and the connecting rods can be quickly eliminated, the load of the tower body is reduced, the corrosion of the ice and the snow to the tower body is also reduced, and the mechanical strength of the tower body is improved.
Description
Technical Field
The invention relates to a basic electric power facility, in particular to a power transmission line corner iron tower for preventing icing.
Background
In high-voltage transmission facilities, overhead lines consisting of iron towers, insulators and wires play an important role in transmission systems.
The existing iron tower structure is mainly made of various section steels, an insulator string for supporting a lead is hung on the tower, because an overhead line is exposed in the field for a long time, the overhead line is inevitably threatened by natural adverse factors such as dirt, thunder and lightning and the like in operation, when the surface of an insulator of the insulator string is polluted, the dirt dust on the surface of the insulator is wetted under meteorological conditions such as fog, dew, rain, snow and the like, and because of the action of an external voltage, the lead is grounded through the surface of the insulator, a cross arm and an iron lap to cause an electric leakage accident, and even the insulator can be caused to generate a dirt flash phenomenon to cause line tripping or cause system collapse to cause huge loss when the lead is serious; in addition, when the tower top of the iron tower or the line is struck by lightning, the generated overvoltage can easily cause insulator flashover, so that the line trips, and the safe and stable operation of the power system is threatened.
Especially in extremely cold areas, when more ice is covered on the cross arm and the tower body, potential safety hazards are caused to the iron tower, the tower body serves as the only bearing foundation of the whole iron tower, the bearing requirement on the tower body is further increased due to the increase of the ice covering amount, common iron tower collapse is caused by the fact that the burden of the tower body is increased due to the fact that the excessive ice is covered on the surface of the tower body, the ice covered on the tower body can also cause great corrosion to a steel structure of the tower body in the process of gradually melting, and the service life of the iron tower is greatly shortened.
The corner iron tower is generally used for changing the path direction of a power transmission line, has wide application range, and therefore faces the threat of the unfavorable natural conditions, and aims at the defects of the prior art, the corner iron tower needs to be improved to improve the anti-icing capability, has good anti-icing capability when operating in an extremely cold icing area, avoids the mechanical damage of a tower body, and ensures the safe, stable and energy-saving operation of a power transmission system.
Disclosure of Invention
In view of the above, the invention provides a power transmission line corner iron tower for preventing icing, which can effectively improve the anti-icing capacity, has good anti-icing capacity when operating in an extremely cold icing area, avoids mechanical damage to a tower body, and ensures safe, stable and energy-saving operation of a power transmission system.
The invention relates to a power transmission line corner iron tower for preventing icing, which comprises a tower body and a cross arm, wherein the cross arm comprises two cross supports which are fixedly arranged on the upper section of the tower body from top to bottom, the cross supports are of a truss structure, chords and web members of the cross supports respectively comprise an insulating inner core and an insulating outer layer, an interlayer is formed between the insulating inner core and the insulating outer layer, an insulating filler is filled in the interlayer, the insulating filler is a mixture of fluororesin, nano-silica, a curing agent, butyl acetate and the like according to a certain proportion, the chords and the web members are connected through insulating bolts, when the power transmission line corner iron tower is used, the cross arm is made of an insulating material, compared with the conventional similar iron tower, the tower weight is reduced by 15-30%, the insulating strength of the edge surface between a lead and the grounding of the iron tower is increased by 100-180%, the anti-icing capacity of a power transmission, Stable and energy-saving operation; the tower body includes four support columns and connects the connecting rod between each support column, support column and connecting rod are angle steel and inboard and all laminate and be provided with the heat pipe that is used for heating the deicing, and the heat pipe hugs closely the internal surface setting of support column and connecting rod, and it can eliminate adnexed ice on support column and the connecting rod fast to transfer the heat for support column and connecting rod, alleviates tower body heavy burden, also reduces the corruption of ice and snow to the tower body, improves the mechanical strength of tower body.
Further, the heat conduction pipe is a round pipe or a square pipe, can adapt to high-humidity and low-temperature environments, is light in weight, corrosion-resistant, anti-aging and good in heat conduction performance, can ensure good performance under extremely cold conditions, and generally adopts a copper pipe and an alloy pipe.
Furthermore, the end of the heat conduction pipe is externally connected with a hot air source and forms air flow circulation, the air flow circulation is achieved, heat is transferred to the ice and snow on the supporting columns and the connecting rods, the ice and snow are quickly ablated, the load of the supporting columns and the connecting rods is reduced, and the mechanical strength of the tower body is improved.
Furthermore, the end of the heat conduction pipe is externally connected with a hot water source and forms water flow circulation, and the water flow circulation is achieved, so that heat is transferred to ice and snow on the supporting columns and the connecting rods, the ice and snow are quickly ablated, the load of the supporting columns and the connecting rods is reduced, and the mechanical strength of the tower body is improved.
Furthermore, the anti-freezing solution is added in the hot water source of the heat conduction pipe, and the anti-freezing solution is mainly used for preventing the heat conduction pipe from being damaged due to the fact that hot water in the heat conduction pipe freezes ice when meeting cold, or preventing water flow circulation in the heat conduction pipe from being influenced due to the fact that the hot water freezes ice.
Furthermore, the insulating inner core is made of glass fiber reinforced plastic, epoxy resin or carbon fiber, and the glass fiber reinforced plastic not only can well meet the requirements of the transverse supporter on strength, impact resistance, corrosion resistance and heat resistance, but also is easy to obtain.
Furthermore, the insulating outer layer is made of silica gel, rubber or plastics, so that an excellent insulating effect is achieved, and the elastic characteristic of the insulating outer layer is favorable for fixing the insulator string.
The invention has the beneficial effects that: the invention relates to a power transmission line corner iron tower for preventing icing, which comprises a tower body and a cross arm, wherein the cross arm comprises two cross supports which are fixedly arranged on the upper section of the tower body from top to bottom, the cross supports are of a truss structure, chords and web members of the cross supports respectively comprise an insulating inner core and an insulating outer layer, an interlayer is formed between the insulating inner core and the insulating outer layer, and an insulating filler is filled in the interlayer, when the power transmission line corner iron tower is used, the cross arm is made of insulating materials, compared with the conventional similar iron towers, the power transmission line corner iron tower has the characteristics of light weight, high mechanical strength, good impact resistance, corrosion resistance, good heat resistance and the like, the surface insulating strength between a high-voltage lead and the grounding of the iron tower can be increased by about 100-180 percent, the capability of preventing pollution flashover and lightning stroke of the iron tower is effectively improved, the safe, stable and energy-saving operation of a power transmission, the support column and the connecting rod are angle steels and are all laminated on the inner sides of the angle steels and provided with heat conduction pipes used for heating and deicing, the heat conduction pipes are tightly attached to the inner surfaces of the support column and the connecting rod, heat is transferred to the support column and the connecting rod, ice attached to the support column and the connecting rod can be rapidly eliminated, weight of the tower body is reduced, corrosion of the ice and the snow to the tower body is reduced, and mechanical strength of the tower body is improved.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the cross arm chord and web members;
FIG. 3 is a schematic cross-sectional view of a support column (connecting rod) and a heat pipe;
fig. 4 is a schematic cross-sectional view of the support posts (connecting rods) and the heat pipes.
Detailed Description
Fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic structural view of a cross arm chord member and a web member, fig. 3 is a schematic cross-sectional view of a support column (connecting rod) and a heat pipe, fig. 4 is a schematic cross-sectional view of a support column (connecting rod) and a heat pipe, as shown in the drawings: the power transmission line corner iron tower for preventing icing comprises a tower body 1 and a cross arm, wherein the cross arm comprises two cross supports 2 which are fixedly arranged on the upper section of the tower body 1 from top to bottom in sequence, the cross supports 2 are of a truss structure, the chord members 3 and the web members 4 of the cross supports 2 respectively comprise an insulating inner core 11 and an insulating outer layer 12, an interlayer is formed between the insulating inner core 11 and the insulating outer layer 12, an insulating filler 13 is filled in the interlayer, the insulating filler 13 is a mixture formed by fluororesin, nano silicon dioxide, a curing agent, butyl acetate and the like according to a certain proportion, the chord members 3 and the web members 4 are connected through insulating bolts, when the power transmission line corner iron tower is used, the tower weight is reduced by 15-30% compared with a conventional similar iron tower due to the fact that the cross arm is made of an insulating material, the surface insulating strength between a lead and a grounded iron tower is increased by 100-180%, and the anti, the safe, stable and energy-saving operation of the power transmission system is effectively guaranteed; the tower body 1 includes four support columns 5 and connects connecting rod 6 between each support column 5, support column 5 and connecting rod 6 are angle steel and inboard all laminate and are provided with heat pipe 7 that is used for heating the deicing, and support column 5 and connecting rod 6's internal surface setting are hugged closely to heat pipe 7, with the heat transfer give support column 5 and connecting rod 6 can eliminate adnexed ice on support column 5 and the connecting rod 6 fast, alleviate tower body 1 heavy burden, also reduce the corruption of ice and snow to tower body 1, improve tower body 1's mechanical strength.
In this embodiment, the heat pipe 7 is a circular pipe or a square pipe, the heat pipe 7 can adapt to a high-humidity low-temperature environment, and has the advantages of light weight, corrosion resistance, aging resistance, good heat conductivity, and capability of ensuring good performance under an extremely cold condition, and copper pipes and alloy pipes are generally used.
In this embodiment, the end of the heat conducting pipe 7 is externally connected with a hot air source to form an air flow circulation, and the air flow circulation transfers heat to the ice and snow on the supporting columns 5 and the connecting rods 6 to melt the ice and snow quickly, thereby reducing the load of the supporting columns 5 and the connecting rods 6 and improving the mechanical strength of the tower body 1.
In this embodiment, the end of the heat conducting pipe 7 is externally connected with a hot water source to form water circulation, and the water circulation transfers heat to the ice and snow on the supporting columns 5 and the connecting rods 6 to melt the ice and snow quickly, so that the loads of the supporting columns 5 and the connecting rods 6 are reduced, and the mechanical strength of the tower body 1 is improved.
In this embodiment, the anti-freezing solution is added to the hot water source of the heat conduction pipes 7, and the anti-freezing solution is mainly used to prevent the heat conduction pipes 7 from being damaged due to the ice formed by the cold hot water in the heat conduction pipes 7 or to prevent the water flow circulation in the heat conduction pipes 7 from being affected by the ice.
In this embodiment, the insulating inner core 11 is made of glass fiber reinforced plastic, epoxy resin or carbon fiber, and the glass fiber reinforced plastic not only can well meet the requirements of the transverse supporter 2 in strength, impact resistance, corrosion resistance and heat resistance, but also is easy to obtain.
In this embodiment, the insulating outer layer 12 is made of silica gel, rubber or plastic, so as to achieve an excellent insulating effect, and the elastic property of the insulating outer layer is also beneficial to fixing the insulator string.
The tower body 1 comprises four support columns 5 and connecting rods 6 connected among the support columns 5, the support columns 5 and the connecting rods 6 are all angle steel, heat conduction pipes 7 for heating and deicing are attached to the inner sides of the support columns 5 and the connecting rods 6, the heat conduction pipes 7 are arranged in a manner of being attached to the inner surfaces of the support columns 5 and the connecting rods 6, heat is transferred to the support columns 5 and the connecting rods 6, ice attached to the support columns 5 and the connecting rods 6 can be rapidly eliminated, load of the tower body 1 is reduced, corrosion of the tower body 1 caused by the ice and the snow is also reduced, and mechanical strength of the tower.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides a power transmission line corner iron tower for preventing freeze, includes body of the tower and cross arm, its characterized in that: the cross arm comprises two cross arm bodies which are fixedly arranged on the upper section of the tower body from top to bottom, each cross arm body is of a truss structure, the chord members and the web members of each cross arm body comprise insulating inner cores and insulating outer layers, an interlayer is formed between each insulating inner core and each insulating outer layer, and insulating filling agents are filled in each interlayer; the tower body includes four support columns and connects the connecting rod between each support column, support column and connecting rod are the angle steel and inboard all laminating is provided with the heat pipe that is used for heating the deicing.
2. The power transmission line corner pylon for ice prevention of claim 1, wherein: the heat conduction pipe is a round pipe or a square pipe.
3. The power transmission line corner pylon for ice prevention of claim 2, wherein: the end of the heat conduction pipe is externally connected with a hot air source and forms air circulation.
4. The power transmission line corner pylon for ice prevention of claim 2, wherein: the end of the heat conduction pipe is externally connected with a hot water source and forms water circulation.
5. The power transmission line corner pylon for ice prevention of claim 4, wherein: and anti-freezing solution is added into the hot water source of the heat conduction pipe.
6. The power transmission line corner pylon for ice prevention of claim 1, wherein: the insulating inner core is made of glass fiber reinforced plastic, epoxy resin or carbon fiber.
7. The power transmission line corner pylon for ice prevention of claim 6, wherein: the insulating outer layer is made of silica gel, rubber or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924953.2A CN111894336A (en) | 2020-09-05 | 2020-09-05 | A transmission line corner iron tower for preventing freeze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924953.2A CN111894336A (en) | 2020-09-05 | 2020-09-05 | A transmission line corner iron tower for preventing freeze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894336A true CN111894336A (en) | 2020-11-06 |
Family
ID=73225424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010924953.2A Pending CN111894336A (en) | 2020-09-05 | 2020-09-05 | A transmission line corner iron tower for preventing freeze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894336A (en) |
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2020
- 2020-09-05 CN CN202010924953.2A patent/CN111894336A/en active Pending
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 400707 No.95, Jiade Avenue, caijiagang Town, Beibei District, Chongqing Applicant after: Chongqing Guangren Iron Tower Manufacture Co.,Ltd. Address before: 400707 No.95, Jiade Avenue, caijiagang Town, Beibei District, Chongqing Applicant before: CHONGQING GUANGREN TOWER MANUFACTURING Co.,Ltd. |
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| CB02 | Change of applicant information |