CN110725206B - Construction and use method of deicing and snow melting protection device for bridge stay cable - Google Patents
Construction and use method of deicing and snow melting protection device for bridge stay cable Download PDFInfo
- Publication number
- CN110725206B CN110725206B CN201910857962.1A CN201910857962A CN110725206B CN 110725206 B CN110725206 B CN 110725206B CN 201910857962 A CN201910857962 A CN 201910857962A CN 110725206 B CN110725206 B CN 110725206B
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- pipe
- protection device
- stay cable
- deicing
- water
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/203—Low temperature resistance
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2015—Construction industries
- D07B2501/203—Bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridge auxiliary facilities, in particular to a construction and use method of a deicing and snow melting protection device for a bridge stay cable. The invention aims to solve the technical problem that ice and snow covered on the stay cable can not be ablated for a long time in winter. In order to solve the technical problems, the invention provides a construction and use method of a deicing and snow melting protection device for a bridge stay cable, which comprises the following steps of 1: utilize the elasticity of PE pipe, assemble PE pipe from last to down, step 2: the first section and the last section of PE pipe are internally provided with reed limiting devices, and screws are rotated to preliminarily fix the positions of the PE pipes through balls.
Description
Technical Field
The invention relates to the field of bridge auxiliary facilities, in particular to a construction and use method of a deicing and snow melting protection device for a bridge stay cable.
Background
The deicing of the stay cable is one of the problems to be solved urgently in the industry. When rain and snow weather occurs in winter and the temperature is continuously below zero, the bridge stay cables are easily covered by rain and snow, and are gradually condensed into ice to form ice slush. In China, the falling problem of bridge stay cable ice is well known: in 2015, there was a media report of a Wuhan Tianxing Zhou bridge ice fall event; in 2018, in 1 month, the cable of the Poyang lake bridge is frozen, ice falls from high altitude, and a lot of passing vehicles are hit by the glass; in the same period, the stay cables of the eight bridges in Nanchang city fall off ice, and a plurality of vehicles are smashed, so that the eight bridges are temporarily closed; in the same year of 2 months, the bridge of the Yangtze river bridge melts and falls on the ice layer, a plurality of automobiles are smashed, two persons are injured, and then the Yangtze river bridge company starts an emergency plan immediately to close the main road section and the entrance along the line; in the 2 th month of the year, the ice falling phenomenon occurs again in the Changjiang bridge in Anqing, the ETC and the automatic card issuing entrance lane are closed in the charging station of the Changjiang bridge in Anqing, and managers use an iron shovel to clear away part of critical ice melting on the side of the tower top.
Therefore, the ice and snow covered on the stay cable can not be ablated for a long time in winter, impurities contained in the ice and snow easily corrode the stay cable, the ice and snow increase the load of the stay cable, and the ice blocks condensed on the stay cable can be influenced by external factors such as temperature rise, wind blowing or normal vibration of the stay cable, so that the ice blocks fall from the stay cable. When the higher ice-cube in position falls, because speed is great, there is great potential safety hazard to the vehicle of normally traveling on the bridge floor, can cause the traffic accident of concatenating even when serious, cause huge personal loss of property, closed road also can exert an influence to people's normal trip.
The heating device used by the existing stay cable deicing device mainly heats a heat tracing band, but the heating area is limited, if the heat tracing band is excessively wound, the material of the heat tracing band is wasted, the winding, loosening, deicing and snow melting effects are uneven, and secondary icing is easily caused.
In addition, after the ice and snow are melted by the self-temperature-control heat tracing band used by the existing bridge, the snow water directly drops or slides along the stay cable, and a collecting device is lacked, so that waste is caused.
Therefore, for the stayed-cable bridge, from the perspective of safe operation and traffic operation, a device capable of effectively removing ice and snow and preventing the molten water from dripping and freezing is needed, so as to ensure the safety of vehicles passing through the bridge in winter in low-temperature rainy and snowy weather.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a construction and use method of a deicing and snow melting protection device for a bridge stay cable, and solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a construction and use method of a deicing and snow melting protection device for a bridge stay cable comprises the following steps:
step 1: the elasticity of the PE pipes is utilized, the PE pipes are sleeved on the outer sides of the stay cables through the openings of the PE pipes, the PE pipes are connected end to end through the clamping teeth and the tooth-shaped clamping grooves on the PE pipes, and the PE pipes are assembled from top to bottom.
Step 2: the inside of first festival and last festival PE pipe has reed stop device, and reed stop device includes the reed, adjusts the opening and makes it just to ground under the supplementary of spirit level behind the cutting ferrule, rotates the screw, lets the screw pass through the ball and tentatively fix.
And step 3: and butting the temperature self-control heat tracing bands in the adjacent PE pipes through the crystal heads and the crystal grooves.
And 4, step 4: and stabilizing the position of the PE pipe by using a water absorption expansion device at the opening of the PE pipe.
And 5: the orientation of the opening of the PE pipe is adjusted again through the assistance of the level, so that the opening is just opposite to the ground.
Step 6: and the screw is screwed down again to achieve the effect of complete fixation.
Preferably, after the device is powered on, the self-temperature-control heat tracing band is heated to melt an ice layer on the stay cable, the melted water is absorbed by the water absorption and expansion device, the water in the water absorption and expansion device is evaporated through heat, and the stay cable is extruded after the water absorption and expansion device is expanded, so that the device is more stable after being fixed.
Preferably, after the adjacent crystal grooves are connected with the crystal head, a self-temperature-control heat tracing band circuit is formed.
Preferably, the level is installed at the lower end of the first section of PE pipe and the lower end of the last section of PE pipe, is positioned outside the pipe wall opposite to the opening of the PE pipe, can be freely disassembled, and can adjust the direction of the opening of the PE pipe according to the deviation of level bubbles so as to ensure that the opening can be opposite to the ground.
Preferably, the temperature self-regulating heat tracing band comprises a five-core or six-core heating cable and two heat tracing band metal leads coated by a high polymer PTC material.
Preferably, the temperature sensor, the humidity sensor and the gravity sensor on the inner wall of the PE pipe can monitor the device in time.
Preferably, the protective device is arranged on the stay cable for removing ice and snow in winter and removing moisture in summer, and after the water absorption expansion device absorbs moisture, the water is heated through the heat tracing band to form a large temperature difference with the external environment, so that the moisture evaporation in the water absorption expansion device is accelerated.
Preferably, the protection device is arranged in winter and is powered on for preheating before ice and snow are condensed, water in the water absorption expansion device is evaporated, the protection device is arranged in winter and is powered on after being condensed, the PE pipe is heated to deice and melt snow and evaporate ice and snow, and the protection device is arranged in summer and is powered on and is heated to evaporate water vapor.
(III) advantageous effects
The invention provides a construction and use method of a deicing and snow melting protection device for a bridge stay cable, which has the following beneficial effects:
1. the top end of the first section of PE pipe is sealed, so that the top of the stay cable can be prevented from being corroded by water, the stay cable is protected to be intact, and the service life of the stay cable is prolonged.
2. The PE pipe is connected by the tooth-shaped clamping groove and the clamping tooth, so that the PE pipe is firmly connected, the PE pipe does not need to be limited again after being installed, and the installation speed of the protection device is increased.
3. After the protection device is installed, water is added into the water absorption expansion device to expand the water absorption expansion device, the stay cable is extruded, the static friction force is increased, and the protection device is further guaranteed to be stably fixed.
4. According to the invention, the waterproof film is contacted with the stay cable after the protection device is installed, so that the waterproof film is prevented from being damaged by friction with the stay cable in the installation process.
5. According to the invention, when and after the protective device is installed, the opening direction of the PE pipe is adjusted by using the water level to assist, so that the opening of the PE pipe is directly opposite to the ground more intuitively and accurately.
6. The reed limiting device completely fixes the protective device after the opening orientation of the PE pipe is adjusted, and provides a rotation room for adjusting the opening orientation of the PE pipe.
7. The invention can be used for deicing and melting snow of the stay cable in winter to prevent ice from falling off, and can also be used for dehumidifying the stay cable in summer to prevent corrosion and prolong the service life of the stay cable.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a perspective view of the PE pipe and the heat tracing band of the present invention;
FIG. 3 is a schematic cross-sectional view of the apparatus of the present invention;
FIG. 4 is a schematic view of a crystal head according to the present invention;
FIG. 5 is a schematic view of a snap-on level of the present invention;
FIG. 6 is a schematic diagram of the splicing of the device of the present invention.
In the figure: the device comprises a crystal groove 1, a waterproof film 2, a water absorption expansion device 3, a PE pipe 4, a latch 5, a crystal head 6, a temperature self-control heat tracing band 7, a temperature sensor 81, a humidity sensor 82, a gravity sensor 83, a reed 9, a heat tracing band metal lead 10, a buckle 13, a leveling bubble 14, a leveling instrument 15 and a reed limiting device 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a construction and use method of a deicing and snow melting protection device for a bridge stay cable comprises the following steps:
step 1: the elasticity of the PE pipes is utilized, the PE pipes are sleeved on the outer sides of the stay cables through the openings of the PE pipes, the PE pipes are connected end to end through the clamping teeth and the tooth-shaped clamping grooves on the PE pipes, and the PE pipes are assembled from top to bottom.
Step 2: the first section and the last section of PE pipe 4 are internally provided with reed limiting devices 16, each reed limiting device 16 comprises a reed 9, an opening is adjusted under the assistance of a level 15 after the cutting sleeve is clamped, so that the opening is just opposite to the ground, and a screw 11 is rotated to be preliminarily fixed by the screw 11 through a ball 8.
And step 3: the automatic temperature control heating cable is characterized in that an automatic temperature control heating cable 7 in an adjacent PE pipe is in butt joint with a crystal groove 1 through a crystal head 6, the automatic temperature control heating cable 7 comprises a five-core or six-core heating cable and two heating cable metal leads 10 coated by a high-molecular PTC material, after the adjacent crystal groove 1 is connected with the crystal head 6, a circuit of the automatic temperature control heating cable 7 is formed, after the device is powered on, the automatic temperature control heating cable is heated, an ice layer on a stay cable is melted, the melted water is absorbed by a water absorption expansion device, the water in the water absorption expansion device is evaporated through heat, and the water absorption expansion device 3 extrudes the stay cable, so that the device is more stable after being fixed.
And 4, step 4: the position of the PE pipe 4 is stabilized by the water absorption expansion device 3 at the opening of the PE pipe 4, the protective device is arranged on the stay cable to remove ice and snow in winter and remove moisture in summer, and after the water absorption expansion device 3 absorbs moisture, the moisture is heated by the heat tracing band to form a large temperature difference with the external environment, so that the moisture evaporation in the water absorption expansion device 3 is accelerated.
And 5: through the assistance of spirit level 15, adjust 4 open-ended orientations of PE pipe once more, let the opening just to ground, spirit level 15 installs the lower extreme at first festival and last festival PE pipe 4, is located outside the just right pipe wall of 4 open-ended PE pipes, can freely dismantle, according to the 14 orientation of adjusting 4 open-ended PE pipes of level bubble, lets the opening just to ground.
Step 6: the screws 11 are screwed down again to achieve the effect of complete fixation, the temperature sensor 81, the humidity sensor 82 and the gravity sensor 83 on the inner wall of the PE pipe 4 can monitor the device in time, the protection device is powered on to preheat before ice and snow are condensed in winter, water in the water absorption expansion device 3 is evaporated, the protection device is powered on after being condensed in winter, the PE pipe 4 is heated to deice and melt snow and evaporate ice and snow, and the protection device is powered on and heats to evaporate the ice and snow after absorbing water vapor in summer.
Claims (8)
1. The utility model provides a deicing snow melt protector construction application method for bridge suspension cable, protector includes the PE pipe, the internal surface of PE pipe is equipped with the expansion device that absorbs water, the internal surface of expansion device that absorbs water is equipped with waterproof membrane, longitudinal opening has been seted up to one side of PE pipe, spiral connection has the automatic control temperature heat tracing band between the internal surface of the surface of expansion device that absorbs water and the PE pipe, the top of automatic control temperature heat tracing band and the top that is located the expansion device that absorbs water are connected with quartzy groove, the bottom of automatic control temperature heat tracing band and the bottom that is located the expansion device that absorbs water are connected with quartzy head, its characterized in that: the method comprises the following steps:
step 1: the elasticity of the PE pipes (4) is utilized, the PE pipes (4) are sleeved on the outer sides of the stay cables through the openings of the PE pipes (4), the PE pipes (4) are connected end to end through clamping teeth (5) on the PE pipes (4) and tooth-shaped clamping grooves (51), and the PE pipes (4) are assembled from top to bottom;
step 2: the first section and the last section of the PE pipe (4) are internally provided with reed limiting devices (16), each reed limiting device (16) comprises a reed (9), two ends of each reed are connected with the PE pipe, a ball is embedded in the center of each reed, a screw penetrates through the wall of the PE pipe to be in contact with the ball in the center of each reed when being screwed in, the ball is extruded to the center of the PE pipe, the PE pipe is sleeved with a sleeve and then is adjusted to be opened under the assistance of a level (15) so as to be right opposite to the ground, and the screw (11) is rotated to be preliminarily fixed by the screw (11) through the ball (;
and step 3: the automatic temperature control heat tracing bands (7) in the adjacent PE pipes are butted with the crystal groove (1) through the crystal head (6);
and 4, step 4: stabilizing the position of the PE pipe (4) by using a water absorption expansion device (3) at the opening of the PE pipe (4);
and 5: the orientation of the opening of the PE pipe (4) is adjusted again through the assistance of the level (15), so that the opening is opposite to the ground;
step 6: and the screw (11) is screwed down again to achieve the effect of complete fixation.
2. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: after the protection device is powered on, the self-temperature-control heat tracing band (7) is heated to melt an ice layer on the stay cable, the melted water is absorbed by the water absorption expansion device (3), the water in the water absorption expansion device (3) is evaporated through heat, and the stay cable is extruded after the water absorption expansion device (3) expands, so that the protection device is more stable after being fixed.
3. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: after the adjacent crystal grooves (1) are connected with the crystal heads (6), a self-temperature-control heat tracing band (7) circuit is formed.
4. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: the level (15) is installed at the lower end of the first section of PE pipe (4) and the last section of PE pipe (4), is located outside the pipe wall right opposite to the opening of the PE pipe (4), can be freely disassembled, and can adjust the direction of the opening of the PE pipe (4) according to the deviation of the level bubble (14) to ensure that the opening can be right opposite to the ground.
5. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: the temperature self-control heat tracing band (7) comprises a five-core or six-core heating cable and two heat tracing band metal leads (10) coated by a high polymer PTC material.
6. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: temperature sensor (81), humidity transducer (82) and gravity sensor (83) of PE pipe (4) inner wall can in time monitor protector.
7. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: the protection device removes ice and snow in winter and removes humidity in summer for the stay cable, after the water absorption expansion device (3) absorbs moisture, the water is heated through the temperature self-control heat tracing band, and a large temperature difference is formed between the water and the external environment, so that the evaporation of the moisture in the water absorption expansion device (3) is accelerated.
8. The construction and use method of the deicing and snow melting protection device for the stay cable of the bridge according to claim 1 is characterized in that: the protection device is electrified for preheating before ice and snow are condensed in winter, water in the water absorption expansion device (3) is evaporated, the protection device is powered on after being condensed in winter, the PE pipe (4) is heated for deicing and melting snow and evaporating ice and snow, and the protection device is powered on and heated to evaporate after absorbing water vapor in summer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857962.1A CN110725206B (en) | 2019-09-09 | 2019-09-09 | Construction and use method of deicing and snow melting protection device for bridge stay cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857962.1A CN110725206B (en) | 2019-09-09 | 2019-09-09 | Construction and use method of deicing and snow melting protection device for bridge stay cable |
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| CN110725206B true CN110725206B (en) | 2021-06-15 |
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| CN111305068B (en) * | 2020-02-19 | 2021-09-14 | 湖北工业大学 | Wind and rain proof excitation device for stay cable and construction method |
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| CN110042755A (en) * | 2019-05-23 | 2019-07-23 | 重庆万桥交通科技发展有限公司 | Bridge cable protective case, protective device and its bridge cable |
| CN209307855U (en) * | 2018-09-30 | 2019-08-27 | 柳州欧维姆机械股份有限公司 | A kind of protective-cover type drag-line Anti-ice-and-snow device |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533311A (en) * | 1991-07-29 | 1993-02-09 | Nippon Steel Corp | Cable snow remover |
| KR100461998B1 (en) * | 2004-04-12 | 2004-12-24 | 박유복 | Cable cover and method for covering the cable using the same |
| CN205443974U (en) * | 2016-03-30 | 2016-08-10 | 武汉迈克斯热能技术有限公司 | Wound form bridge suspension cable melting ice and snow system |
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