Multifunctional composite dehumidification system suitable for suspension bridge main cable and capable of achieving intelligent monitoring

Abstract

The invention discloses a multifunctional composite dehumidification system suitable for a suspension bridge main cable and capable of being intelligently monitored, the suspension bridge comprises the main cable, the main cable comprises a plurality of cable strands, and the multifunctional composite dehumidification system suitable for the suspension bridge main cable and capable of being intelligently monitored comprises an electric heating wire, a leading-out piece, a replacement and maintenance box and a protection system. Electric heating wires are arranged on a plurality of end faces in the main cable, the end faces of the outer sides of the electric heating wires are sleeved with multifunctional dehumidification components, the multifunctional dehumidification components are located on the end face of one side in the main cable, and interactive heat dissipation reinforcing parts are arranged between the multifunctional dehumidification components and the electric heating wires. And a plurality of end surfaces of the main cable are provided with leading-out pieces matched with the electric heating wires. Moisture in the main cable is removed in an auxiliary heating mode, and automatic dehumidification can be achieved even if dry air is injected into a dehumidification system and fails.

Description

A multifunctional composite dehumidification system for intelligent monitoring of main cables of suspension bridges Technical Field

[0001] This invention belongs to the field of suspension bridge main cable technology, specifically relating to a multifunctional composite dehumidification system suitable for intelligent monitoring of suspension bridge main cables. Background Technology

[0002] The main cable of a suspension bridge, as the primary load-bearing component, supports the beam and bridge deck loads. If corrosion protection is inadequate, the steel wires inside the main cable are prone to cracking or even rusting and breaking. Current suspension bridge main cable corrosion protection is a systematic project. Traditional methods such as "zinc plating + sealant + wire wrapping + outer spray protective system" are commonly used to prevent internal corrosion. Increasingly, state-of-the-art "dry air injection dehumidification systems" are being employed, which deliver dry air into the main cable through central ventilation ducts to reduce humidity and prevent steel wire corrosion.

[0003] However, if the dry air injection dehumidification system is accidentally damaged or there is a power outage, it may be unable to supply dry air, or the supply pipe may be ruptured, resulting in the supplied air containing a large amount of moisture. This can easily lead to severe internal corrosion of the main cable, seriously affecting the service life of the main cable and reducing its safety.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a multifunctional composite dehumidification system suitable for intelligent monitoring of the main cable of a suspension bridge.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a multifunctional composite dehumidification system suitable for intelligent monitoring of the main cable of a suspension bridge, which can solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution: a multifunctional composite dehumidification system suitable for intelligent monitoring of the main cable of a suspension bridge. The main cable includes multiple strands, and the multifunctional composite dehumidification system includes heating wires, lead-out components, a replacement and maintenance box, and a protective system. Heating wires are provided on multiple end faces within the main cable. A multifunctional dehumidification component is sleeved on the outer end face of each heating wire. The multifunctional dehumidification component is located on one end face within the main cable, and an interactive heat dissipation reinforcement component is provided between the multifunctional dehumidification component and the heating wires. Lead-out components matching the heating wires are provided on multiple end faces of the main cable. Both ends of multiple heating wires penetrate the inner wall end face of the lead-out component, leading the heating wires from the main cable to the replacement and maintenance box. The replacement and maintenance box is positioned to match the lead-out components. Lead-out grooves are formed on the end faces of the main cable at the multiple lead-out components. The lead-out components protrude from the outer end face of the lead-out grooves, and the replacement and maintenance box is fixedly connected to the outer end face of the main cable at the multiple lead-out grooves. The protection system includes a preliminary automatic lifting disinfection curtain and an automatic lifting protective curtain. The automatic lifting protective curtain is installed on the bottom end face of the replacement and maintenance box, and the preliminary automatic lifting disinfection curtain is installed on the side end face of the replacement and maintenance box located on the automatic lifting protective curtain.

[0008] In one or more embodiments of the present invention, a support frame is bonded to the inner end face of the lead-out member where it fits with the multifunctional dehumidification component, and the cross-sectional shape of the lead-out member includes either a spindle shape or an ellipse shape.

[0009] In one or more embodiments of the present invention, a winch is installed on one side of the lead-out member of the replacement and maintenance box. The winch and the heating wire are both connected to a solar panel. The solar panel is installed on the top side of the replacement and maintenance box. A backup generator is connected to one side of the winch. The two ends of the heating wire are respectively wound around the winch inside the replacement and maintenance box.

[0010] In one or more embodiments of the present invention, the multifunctional dehumidification component includes a plurality of spiral armored tubes and a plurality of reinforcing rings, a spiral armored tube is fixedly connected between a pair of reinforcing rings, and an interactive heat dissipation reinforcement is fixedly connected between two reinforcing rings, wherein the outer diameter of the reinforcing ring is slightly larger than the outer diameter of the spiral armored tube.

[0011] In one or more embodiments of the present invention, the interactive heat dissipation reinforcement includes a plurality of connecting blocks, which are uniformly and fixedly connected between two reinforcing rings. A shaft is fixedly connected between two adjacent connecting blocks, and a polishing cylinder is sleeved on the shaft. The polishing cylinder is located inside the spiral armor tube, and the outermost edge of the connecting block matches the outer diameter of the reinforcing ring.

[0012] In one or more embodiments of the present invention, a first heat sink is fixedly connected to the connecting block, a second heat sink is fixedly connected to the end of the first heat sink away from the connecting block, a plurality of first vent holes are provided on the second heat sink, a plurality of third vent holes are provided on the end of the connecting block away from the first heat sink, a first channel is provided between the first vent holes and the third vent holes, a pair of third heat sinks are fixedly connected to the first heat sink, one side wall of the third heat sink matches the gap of the strand, a plurality of second vent holes are provided on the side wall of the third heat sink away from the strand, and a second channel is provided between the plurality of second vent holes and the first channel.

[0013] In one or more embodiments of the present invention, the inner wall end face of the multifunctional dehumidification component is fixedly connected to a plurality of protective boxes, and a humidity sensor and a temperature sensor are respectively disposed in the plurality of protective boxes.

[0014] In one or more embodiments of the present invention, an automatic lifting protective curtain is fixedly connected to the bottom end face of the replacement and maintenance box, a connecting plate is fixedly connected to the inner wall end face of the automatic lifting protective curtain, a plurality of multi-axis automatic telescopic rods are fixedly connected between the connecting plate and the automatic lifting protective curtain, the bottom end faces of the plurality of multi-axis automatic telescopic rods are fixedly connected to the bottom of the automatic lifting protective curtain, a base plate is fixedly connected to the bottom end face of the automatic lifting protective curtain, and a second protective door is provided on the end face of the automatic lifting protective curtain that is in contact with the initial automatic lifting disinfection curtain.

[0015] In one or more embodiments of the present invention, a sealing plate is fixedly connected to the bottom end face of the main cable of the replacement and maintenance box. An air purifier and a gas storage tank are respectively installed on the bottom end face of the sealing plate of the replacement and maintenance box. The gas storage tank is connected to an oxygen delivery main pipe. The oxygen delivery main pipe is connected to multiple gas delivery telescopic pipes. The multiple gas delivery telescopic pipes are arranged on the inner wall end face of the automatic lifting protective curtain. The air purifier is connected to a purification pipe. The purification pipe is connected to multiple first telescopic exhaust pipes. Gas detection sensors are provided on multiple end faces of the replacement and maintenance box and the main cable.

[0016] In one or more embodiments of the present invention, the bottom end face of the preliminary automatic lifting disinfection curtain is fixedly connected to the bottom end face of the automatic lifting protective curtain. A protective door is provided on one side end face of the preliminary automatic lifting disinfection curtain. A disinfection machine is provided on one side end face of the replacement and maintenance box of the preliminary automatic lifting disinfection curtain. A disinfection delivery pipe is connected between the disinfection machine and the preliminary automatic lifting disinfection curtain. Multiple second telescopic air extraction pipes are provided on the inner wall end face of the preliminary automatic lifting disinfection curtain, and the second telescopic air extraction pipes are connected to a vacuum pump. Compared with the prior art, the present invention provides a multifunctional composite dehumidification system suitable for intelligent monitoring of the main cable of a suspension bridge. It achieves dehumidification of the interior of the main cable by means of auxiliary heating. Even if the dry air injection dehumidification system fails, it can still automatically dehumidify. At the same time, the replacement and maintenance box facilitates later maintenance and replacement. The structure is simple and easy to maintain. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of the usage state of a multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to an embodiment of the present invention; Figure 2 is a partial cross-sectional view of the main cable according to an embodiment of the present invention; Figure 3 is a cross-sectional view of the main cable according to an embodiment of the present invention; Figure 4 is a cross-sectional view of the replacement and maintenance box according to an embodiment of the present invention; Figure 5 is a structural schematic diagram of the replacement and maintenance box according to an embodiment of the present invention; Figure 6 is a schematic diagram of the usage state of the replacement and maintenance box according to an embodiment of the present invention; Figure 7 is a cross-sectional view of the replacement and maintenance box according to an embodiment of the present invention; Figure 8 is a structural schematic diagram of the multifunctional dehumidification component according to an embodiment of the present invention; Figure 9 is a partial disassembled structural schematic diagram of the interactive heat dissipation reinforcement and the spiral armor tube according to an embodiment of the present invention; Figure 10 is a structural schematic diagram of point A in Figure 9; Figure 11 is a structural schematic diagram of the connection between the interactive heat dissipation reinforcement and the spiral armor tube according to an embodiment of the present invention; Figure 12 is a disassembled structural schematic diagram of the interactive heat dissipation reinforcement and the spiral armor tube according to an embodiment of the present invention; Figure 13 is a cross-sectional view of the multifunctional dehumidification component according to an embodiment of the present invention; Figure 14 is a channel structure schematic diagram of the interactive heat dissipation reinforcement according to an embodiment of the present invention; Figure 15 is a cross-sectional view of the multifunctional dehumidification component according to an embodiment of the present invention. Cross-sectional view of the lead-out component; Explanation of main reference numerals: 1-Main cable, 2-Multi-functional dehumidification component, 201-Spiral armored tube, 202-Reinforcing ring, 3-Replacement and maintenance box, 301-Connecting plate, 302-Base plate, 303-Multi-axis automatic telescopic rod, 304-First telescopic exhaust pipe, 305-Gas delivery telescopic pipe, 306-Sealing plate, 4-Cable strand, 5-Lead-out component, 501-Support frame, 6-Lead-out groove, 7-Winder, 8-Backup generator, 9-Solar panel, 10-Preliminary automatic lifting disinfection curtain, 1001-Protective door, 11-Automatic Lifting protective curtain, 12-Air purifier, 1201-Purification pipe, 13-Gas storage tank, 1301-Oxygen delivery main pipe, 14-Disinfection machine, 1401-Disinfection delivery pipe, 15-Heating wire, 1501-Protective wire, 16-Interactive heat dissipation reinforcement, 1601-Connecting block, 1602-Shaft, 1603-Polishing cylinder, 1604-First heat dissipation component, 1605-Second heat dissipation component, 1606-Third heat dissipation component, 1607-First vent, 1608-Second vent, 1609-First channel, 1610-Second channel. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0020] As shown in Figure 1, one embodiment of the present invention provides a multi-functional composite dehumidification system suitable for intelligent monitoring of the main cable of a suspension bridge. The main cable 1 includes multiple strands 4, and a dry air injection dehumidification system is used for routine dehumidification of the main cable 1. The multi-functional composite dehumidification system includes a multi-functional dehumidification component 2, an outlet component 5, a replacement and maintenance box 3, and a protective system. The multi-functional dehumidification component 2 protects the internal heating wire 15, ensuring that the heating wire 15 generates heat to remove moisture from the main cable 1. The outlet component 5 is used to lead both ends of the heating wire 15 from inside the main cable 1 to the replacement and maintenance box 3 and connect them to the winch 7, facilitating future replacement and maintenance of the heating wire 15. The protective system allows drivers to quickly enter the protective system for temporary escape in the event of a chemical gas leak from a chemical transport vehicle on the suspension bridge, facilitating subsequent rescue efforts.

[0021] As shown in Figure 1-2, multiple end faces of the main cable 1 are equipped with heating wires 15. A multi-functional dehumidification component 2 is sleeved on the outer end face of the heating wires 15. The multi-functional dehumidification component 2 is located on one end face of the main cable 1. Since the moisture in the middle and lower part of the main cable 1 is heavier than that in other places, multiple heating wires 15 are respectively set on different end faces in the middle and lower part of the main cable 1 to heat and remove the moisture on that end face. An interactive heat dissipation reinforcement component 16 is set between the multi-functional dehumidification component 2 and the heating wires 15, so as to achieve the purpose of removing moisture by heating the moisture generated inside the main cable 1 through multiple heating wires 15 inside the main cable 1 and evaporating the moisture.

[0022] The heating wire 15 is connected to a heating element, which converts electrical energy into heat to achieve the purpose of heating. This is common knowledge in the field and will not be elaborated here. In addition, the heating wire 15 is a nickel-chromium alloy wire with good flexibility, which can be wound on the winch 7 for subsequent collection and replacement when needed.

[0023] To facilitate the smooth extraction of the heating wires 15 from the main cable 1 and to protect them, lead-out components 5, matching multiple heating wires 15, are fixedly connected inside the main cable 1. Multiple end faces of the main cable 1 are equipped with lead-out components 5 matching the heating wires 15. Both ends of the multiple heating wires 15 penetrate the inner wall end face of the lead-out component 5. The lead-out component 5 leads the heating wires 15 from the main cable 1 to the replacement and maintenance box 3. Specifically, the main cable 1 has lead-out grooves 6 on the end faces of the multiple lead-out components 5. One end of the lead-out component 5 enters the main cable 1 through the lead-out groove 6 and is sleeved on the outer end face of the heating wire 15. The heating wire 15 naturally transitions into the interior of the lead-out component 5 and connects to the winch 7, ensuring the normal use and replacement of the heating wires 15.

[0024] Protective wires 1501 are fixedly connected to both ends of the heating wire 15. The protective wires 1501 are located on the inner end face of the lead-out piece 5, which facilitates dragging the heating wire 15 when replacing it, protects the heating wire 15 for daily use, and protects the heating wire 15 from stress damage.

[0025] As shown in Figure 15, a support frame 501 is bonded to the inner end face of the lead-out member 5 where it meets the multi-functional dehumidification component 2. The support frame 501 is made of carbon fiber, which has high strength and can enhance the support strength when the heating wire 15 and the protective wire 1501 pass through.

[0026] Preferably, the cross-sectional shape of the lead-out member 5 includes either a spindle shape or an elliptical shape. This facilitates the movement of the heating wire 15 and the protective wire 1501 within the lead-out member 5.

[0027] As shown in Figures 8-14, the multifunctional dehumidification component 2 includes multiple spiral armored tubes 201 and multiple reinforcing rings 202. The multifunctional dehumidification component 2 is a pipe formed by combining a flexible spiral armored tube 201 and reinforcing rings 202, serving as a non-stressed multifunctional dehumidification structure. Specifically, multiple spiral steel wires within the outer strand 4 are twisted together to form a protective space containing the multifunctional dehumidification component 2, which is inserted into the protective space. The multifunctional dehumidification component 2 includes multiple reinforcing rings 202 and spiral armored tubes 201. A pair of reinforcing rings 202 are fixedly connected to the spiral armored tube 201. The multifunctional dehumidification component 2 acts as a pressure-resistant buffer layer, providing protection for the heating wire 15 and acting as a pressure-resistant buffer. The gaps between adjacent spirals allow air circulation between the inner and outer layers of the heating wire 15, facilitating temperature and humidity monitoring within the multifunctional dehumidification component 2 and the dissipation of heat from the heating wire 15 to dry moisture.

[0028] The spiral armor tube 201 has an outer diameter of Φ2.7mm and an inner diameter of Φ2mm. The internal friction resistance is 1N / 10m, which provides sufficient channel capacity and low friction resistance for the replacement of the heating wire 15. Theoretically, the heating wire 15 can be drawn more than 1.8km in length within the spiral armor tube 201.

[0029] To further enhance the protection of the heating wire 15 and reduce the friction between the heating wire 15 and the multi-functional dehumidification component 2 when replacing the heating wire 15, an interactive heat dissipation reinforcement 16 is fixedly connected between the two reinforcing rings 202. The interactive heat dissipation reinforcement 16 includes multiple connecting blocks 1601, which are evenly fixedly connected between the two reinforcing rings 202. A shaft 1602 is fixedly connected between two adjacent connecting blocks 1601. A polishing cylinder 1603 is sleeved on the shaft 1602. The polishing cylinder 1603 can rotate on the shaft 1602. The structure between the shaft 1602 and the polishing cylinder 1603 can be an oil-free sliding bearing structure, which can provide a long-lasting lubrication and sliding effect and can be maintenance-free.

[0030] As shown in Figure 12, the polishing cylinder 1603 is located inside the spiral armor tube 201. That is, when the heating wire 15 passes through the spiral armor tube 201, it will preferentially contact the polishing cylinder 1603, which can change most of the sliding friction into rolling friction. This can greatly reduce the resistance of the heating wire 15 moving in the multi-functional dehumidification component 2, greatly improve the efficiency of replacing the heating wire 15, and at the same time greatly reduce the wear and damage to the heating wire 15 inside the multi-functional dehumidification component 2.

[0031] As shown in Figure 9, the outer diameter of the reinforcing ring 202 is slightly larger than the outer diameter of the spiral armor tube 201. The outermost edge of the connecting block 1601 matches the outer diameter of the reinforcing ring 202. The connecting block 1601 and the shaft 1602 can be made of the same material as the spiral armor tube 201 and the reinforcing ring 202, providing greater strength. In other words, a pair of reinforcing rings 202, combined with the intermediate fixed-connection interactive heat dissipation reinforcement 16, can provide additional strong support for the multifunctional dehumidification component 2, making it extremely difficult to deform. Compared with existing technologies and publicly available solutions in the same field, it can significantly improve compressive strength, withstand the compression of multiple strands 4, and avoid twisting during transportation and construction.

[0032] Preferably, the interval between two adjacent heat dissipation reinforcement members 16 is 16-30 cm, and a suitable interval can be selected according to the main cable of different diameters.

[0033] As shown in Figures 9 and 13, in order to further enhance the rapid outward dissipation of heat from the heating wire 15 and improve the heat diffusion efficiency, a first heat sink 1604 is fixedly connected to the connecting block 1601. A second heat sink 16016 is fixedly connected to the end of the first heat sink 1604 away from the connecting block 1601. The second heat sink 16016 is provided with multiple first vent holes 1607. A multiple third vent holes are provided at the end of the connecting block 1601 away from the first heat sink 1604. A first channel 1609 is provided between the first vent holes 1607 and the third vent holes. By passing through the first vent holes 1607, the first channel 1609 and the third vent holes in sequence, the hot air inside the multifunctional dehumidification component 2 can be rapidly dissipated to the outside of the strand 4.

[0034] The first heat sink 1604 and the second heat sink 16016 are located between two adjacent spiral steel wires, and can also force the two adjacent spiral steel wires to be spread apart by a certain distance, further ensuring air permeability and heat conduction performance.

[0035] As shown in Figures 10-14, to further enhance the outward diffusion range of the heating wire 15, a pair of third heat sinks 1606 are fixedly connected to the first heat sink 1604. One side wall of the third heat sink 1606 matches the spiral steel wire. Multiple second vent holes 1608 are provided on the side wall of the third heat sink 1606 away from the spiral steel wire. A second channel 1610 is provided between the multiple second vent holes 1608 and the first channel 1609. By passing through the second vent holes 1608, the second channel 1610, the first channel 1609, and the third vent holes in sequence, the hot air generated inside the multi-functional dehumidification component 2 and the humidity generated inside the main cable 1 can interact, further achieving rapid diffusion of hot air, further drying it, and removing moisture.

[0036] As shown in Figure 14, the dashed arrows illustrate the path of mutual diffusion between moisture inside the main cable 1 and heat generated by the multifunctional dehumidification component 2. The paths can also be in the opposite direction. Even if some of these multiple channels for hot air diffusion become blocked, the overall interaction effect remains unaffected.

[0037] It is worth noting that, later on, dry air can also be introduced into the multi-functional dehumidifier 2. The dry air can diffuse around the multi-functional dehumidifier 2 through multiple heat-interacting channels, or the negative pressure formed by the airflow can remove the moisture around the multi-functional dehumidifier 2, thus achieving a drying effect.

[0038] Furthermore, multiple protective boxes are fixedly connected to the inner wall end face of the multifunctional dehumidification component 2, and humidity sensors and temperature sensors are respectively installed in the multiple protective boxes. The protective boxes are used to protect the humidity sensors and temperature sensors from the influence of external heat, and can also be used to monitor the humidity and temperature changes inside the main cable 1. In addition, multiple heating wires 15 can be set on different end faces of the middle and lower side of the main cable 1. The humidity in the middle and lower side of the main cable 1 is heavier than that in other places, so moisture can be quickly removed from this end face. A protective box is preset every 30-60 meters inside the multifunctional dehumidification component 2 to monitor the current temperature and humidity. When the humidity is high, the heating wires 15 can be quickly activated to heat and dry the humidity at the current location, ensuring that the inside of the main cable 1 is always in a dry environment.

[0039] It is worth noting that, while the second vent 1608, the second channel 1610, the first channel 1609 and the third vent are dispersing hot air outward, they can further realize the interaction between the temperature and humidity inside the multifunctional dehumidification component 2 and the temperature and humidity of the inner end face of the main cable 1, so that the temperature and humidity of the environment where the humidity sensor and temperature sensor inside the protective shell are located can more accurately reflect the temperature and humidity of the area.

[0040] The replacement and maintenance box 3 is positioned to match the lead-out component 5. The lead-out component 5 protrudes from the outer end face of the lead-out slot 6. The main cable 1 is fixedly connected to the replacement and maintenance box 3 on the outer end face of multiple lead-out slots 6. The replacement and maintenance box 3 provides sealed protection for the lead-out slots 6 and the components inside, ensuring that the external environment does not affect the interior of the replacement and maintenance box 3. Preferably, a maintenance door is provided on one end face of the replacement and maintenance box 3, which facilitates later access by personnel to perform maintenance and replacement of the heating wire 15.

[0041] The replacement and maintenance box 3 is equipped with a winch 7 on one side of the lead-out component 5. The two ends of the heating wire 15 are respectively wound around the winch 7 inside the replacement and maintenance box 3 by protective wire 1501. The replacement of the heating wire 15 can be controlled at both ends by the winch 7. The winch 7 winds the first and last ends of the heating wire 15. The winch 7 connected to the first end is wound with the new heating wire 15, and the winch 7 at the last end is used to wind the old heating wire 15 inside the multi-functional dehumidification component 2, so as to carry out the replacement in an orderly manner.

[0042] Both the winch 7 and the heating wire 15 are connected to solar panels 9. The solar panels 9 are installed on the top end of the replacement and maintenance box 3, so that the operation of the whole can be powered by the solar panels 9 in daily life. A backup generator 8 is connected to one end of the winch 7. When the electrical energy stored in the solar panels 9 is insufficient, the backup generator 8 can be started to start the whole system with electrical power.

[0043] As shown in Figures 4-7, the protection system includes a preliminary automatic lifting disinfection curtain 10 and an automatic lifting protective curtain 11. The automatic lifting protective curtain 11 is installed on the bottom end face of the replacement and maintenance box 3, and the preliminary automatic lifting disinfection curtain 10 is installed on one side end face of the replacement and maintenance box 3 located on the automatic lifting protective curtain 11.

[0044] An automatic lifting protective curtain 11 is fixedly connected to the bottom end face of the replacement and maintenance box 3. A connecting plate 301 is fixedly connected to the inner wall end face of the automatic lifting protective curtain 11. Multiple multi-axis automatic telescopic rods 303 are fixedly connected between the connecting plate 301 and the automatic lifting protective curtain 11. The multi-axis automatic telescopic rods 303 are fixed inside the automatic lifting protective curtain 11 to control the lifting and lowering of the automatic lifting protective curtain 11. The bottom end faces of the multiple multi-axis automatic telescopic rods 303 are fixedly connected to the bottom of the automatic lifting protective curtain 11, so that the automatic lifting protective curtain 11 can be automatically extended and retracted by the extension and retraction of the multi-axis automatic telescopic rods 303, thereby achieving a rapid descent to the bridge deck of the suspension bridge, forming a safe protective space for personnel to enter and take refuge.

[0045] The bottom end face of the automatic lifting protective curtain 11 is fixedly connected to a base plate 302. The base plate 302 is used to close the bottom of the automatic lifting protective curtain 11, so that the automatic lifting protective curtain 11 maintains a closed environment.

[0046] The end face where the automatic lifting protective curtain 11 fits against the initial automatic lifting disinfection curtain 10 is provided with a second protective door, allowing personnel to enter the interior of the automatic lifting protective curtain 11 through the second protective door for refuge. The second protective door and the protective door 1001 are preferably opened using zippers or Velcro, facilitating quick opening and sealing off the current environment.

[0047] The replacement and maintenance box 3 is fixedly connected to a sealing partition 306 at the bottom end of the main cable 1, dividing the interior of the replacement and maintenance box 3 into two independent spaces. The space above the sealing partition 306 is enclosed. An air purifier 12 and a gas storage tank 13 are respectively installed on the bottom end of the replacement and maintenance box 3 at the sealing partition 306. The gas storage tank 13 is connected to an oxygen supply main pipe 1301, which is connected to multiple gas supply telescopic pipes 305. The multiple gas supply telescopic pipes 305 are set on the inner wall end of the automatic lifting protective curtain 11. The gas supply telescopic pipes 305 rise and fall with the automatic lifting protective curtain 11. The gas storage tank 13 is located at the lower middle end of the automatic lifting protective curtain 11, which can quickly allow personnel at the bottom to breathe fresh oxygen. The gas storage tank 13 stores oxygen and is used to continuously supply oxygen into the automatic lifting protective curtain 11 for personnel inside to breathe fresh oxygen.

[0048] The air purifier 12 is connected to a purification pipe 1201, which is connected to multiple first telescopic exhaust pipes 304. The multiple first telescopic exhaust pipes 304 are set on the inner wall end face of the automatic lifting protective curtain 11. The first telescopic exhaust pipes 304 rise and fall with the automatic lifting protective curtain 11. The gas storage tank 13 is located at the middle and lower end of the automatic lifting protective curtain 11. The replacement and maintenance box 3 is located at the lower part of the sealing plate 306 and is provided with ventilation holes to facilitate the daily switching of the air purifier 12. The air purifier 12 is used to filter the undesirable gases inside the automatic lifting protective curtain 11 through the purification pipe 1201 and the first telescopic exhaust pipes 304, removing particulate matter, harmful gases and microorganisms from the air, and ensuring the cleanliness of the air inside the automatic lifting protective curtain 11.

[0049] Gas detection sensors are installed on multiple end faces of the replacement and maintenance box 3 and the main cable 1. These sensors monitor the presence of hazardous gases in the external environment. When a hazardous gas leak is detected, the gas sensors issue an early warning, and the automatic lifting protective curtain 11 and the preliminary automatic lifting disinfection curtain 10 are activated in time, descending to the bridge deck to create a safe shelter environment for temporary refuge.

[0050] The bottom end face of the preliminary automatic lifting disinfection curtain 10 is fixedly connected to the bottom end face of the automatic lifting protective curtain 11, so that when the automatic lifting protective curtain 11 descends, the preliminary automatic lifting disinfection curtain 10 descends accordingly. A protective door 1001 is provided on one side end face of the preliminary automatic lifting disinfection curtain 10, through which personnel can enter the preliminary automatic lifting disinfection curtain 10 for preliminary disinfection and then re-enter the automatic lifting protective curtain 11 for shelter.

[0051] The replacement and maintenance box 3 is located on one side of the initial automatic lifting disinfection curtain 10 and is equipped with a disinfection machine 14. A disinfection delivery pipe 1401 connects the disinfection machine 14 to the initial automatic lifting disinfection curtain 10. The disinfection machine 14 delivers disinfectant into the disinfection delivery pipe 1401 to disinfect personnel entering the room and remove any foreign contaminants they may be carrying. After a 1-2 minute buffer period, this prevents personnel from carrying foreign contaminants into the automatic lifting protective curtain 11, which could contaminate the environment inside. Personnel then enter the automatic lifting protective curtain 11 through the second protective door for further protection.

[0052] Preferably, the disinfection delivery pipe 1401 is connected to a second gas delivery telescopic pipe, so that the gas delivery telescopic pipe rises and falls with the rise and fall of the initial automatic lifting disinfection curtain 10. At the same time, the second gas delivery telescopic pipe is located on the lower end face of the initial automatic lifting disinfection curtain 10, which facilitates the rapid output of disinfectant to personnel.

[0053] The inner wall end face of the preliminary automatic lifting disinfection curtain 10 is provided with multiple second telescopic air extraction pipes, which are connected to a vacuum pump. One side end face of the preliminary automatic lifting disinfection curtain 10 is provided with an air outlet. The vacuum pump is connected to the air outlet pipe through the exhaust pipe, so that the dangerous gas extracted by the vacuum pump inside the preliminary automatic lifting disinfection curtain 10 can be discharged to the outside through the air outlet, ensuring the safety inside the preliminary automatic lifting disinfection curtain 10.

[0054] Among them, the material of the initial automatic lifting disinfection curtain 10 and the automatic lifting protective curtain 11 is preferably a telescopic tube made of nylon or polyvinyl chloride, which can prevent the corrosion of most chemical substances while being fireproof.

[0055] In use, the dry air injection dehumidification system is used to dehumidify the main cable 1 daily. When the humidity sensor in the protective shell inside the multi-functional dehumidification component 2 or the temperature and humidity sensing fiber inside the main cable 1 detects that the current humidity is high, or when the dry air injection dehumidification system fails, the heating wire 15 can be activated to start heating and dry the moisture around the end face of the main cable 1. At the same time, the interactive heat dissipation reinforcement component 16 can quickly dissipate heat, so that the inside of the main cable 1 is always kept dry.

[0056] When the heating wire 15 needs to be replaced, the new heating wire 15 is wound around the winch 7 connected to the first end of the multi-functional dehumidification component 2. At the same time, the old heating wire 15 is wound around the winch 7 connected to the corresponding end of the multi-functional dehumidification component 2 through the protective wire 1501. Start the winch 7 to start the winding operation. During the rotation of the winch 7, one end of the old heating wire 15 can be pulled. At the same time, during the movement and winding process of the heating wire 15, the new heating wire 15 is pulled back into the multi-functional dehumidification component 2 of the main cable 1. The new heating wire 15 is unfolded and moved into the multi-functional dehumidification component 2 of the main cable 1 as the winch 7 rotates. The old heating wire 15 will be wound up as the winch 7 rotates until it is completely replaced. After the replacement of the old heating wire 15 is completed, the heating wire 15 is connected to the solar panel 9 for normal power supply.

[0057] When a hazardous chemical leak occurs on a suspension bridge, the air is filled with harmful chemical gases. At this time, the gas detection sensor detects the hazardous gas leak. The initial automatic lifting disinfection curtain 10 and the automatic lifting protective curtain 11 quickly reach the bridge surface under the extension and retraction of the multi-axis automatic telescopic rod 303, forming a safe protective space. The driver quickly goes to the initial automatic lifting disinfection curtain 10, enters the initial automatic lifting disinfection curtain 10 through the protective door 1001 for 1-2 minutes of disinfection, and then opens the second protective door to enter the automatic lifting protective curtain 11 for temporary shelter and protection while waiting for subsequent rescue.

[0058] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge, wherein the main cable comprises multiple strands, characterized in that, The multifunctional composite dehumidification system includes: heating wires, with multiple end faces of the main cable equipped with heating wires; a multifunctional dehumidification component is sleeved on the outer end face of the heating wires, the multifunctional dehumidification component being located on one end face of the main cable; and an interactive heat dissipation reinforcement component being provided between the multifunctional dehumidification component and the heating wires; and lead-out components, with multiple end faces of the main cable equipped with lead-out components matching the heating wires, both ends of the multiple heating wires penetrating the inner wall end face of the lead-out components, the lead-out components leading the heating wires out of the main cable to the replacement... The maintenance box is used for replacement and maintenance, and its position matches that of the lead-out components. The main cable has lead-out slots on the end faces of multiple lead-out components, and the lead-out components protrude from the outer end faces of the lead-out slots. The main cable is fixedly connected to the replacement and maintenance box on the outer end faces of multiple lead-out slots. The protection system includes a preliminary automatic lifting disinfection curtain and an automatic lifting protective curtain. The automatic lifting protective curtain is installed on the bottom end face of the replacement and maintenance box, and the preliminary automatic lifting disinfection curtain is installed on the side end face of the replacement and maintenance box located on the automatic lifting protective curtain.

2. The multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 1, characterized in that, A support frame is bonded to the inner end face of the lead-out component where it fits with the multifunctional dehumidification component. The cross-sectional shape of the lead-out component includes either a spindle shape or an ellipse shape.

3. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 2, characterized in that, The replacement and maintenance box has a winch installed on one side of the lead-out component. The winch and the heating wire are both connected to a solar panel. The solar panel is installed on the top side of the replacement and maintenance box. A backup generator is connected to one side of the winch. The two ends of the heating wire are wound around the winch inside the replacement and maintenance box.

4. The multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 1, characterized in that, The multifunctional dehumidification component includes multiple spiral armored tubes and multiple reinforcing rings. A spiral armored tube is fixedly connected between a pair of reinforcing rings, and an interactive heat dissipation reinforcement is fixedly connected between two reinforcing rings. The outer diameter of the reinforcing ring is slightly larger than the outer diameter of the spiral armored tube.

5. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 4, characterized in that, The interactive heat dissipation reinforcement includes multiple connecting blocks, which are uniformly and fixedly connected between two reinforcing rings. A shaft is fixedly connected between two adjacent connecting blocks, and a polishing cylinder is sleeved on the shaft. The polishing cylinder is located inside the spiral armor tube, and the outermost edge of the connecting block matches the outer diameter of the reinforcing ring.

6. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 5, characterized in that, A first heat sink is fixedly connected to the connecting block. A second heat sink is fixedly connected to the end of the first heat sink away from the connecting block. The second heat sink has multiple first vent holes. The end of the connecting block away from the first heat sink has multiple third vent holes. A first channel is provided between the first vent holes and the third vent holes. A pair of third heat sinks are fixedly connected to the first heat sink. One side wall of the third heat sink matches the gap of the strand. Multiple second vent holes are provided on the side wall of the third heat sink away from the strand. A second channel is provided between the multiple second vent holes and the first channel.

7. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 1, characterized in that, The inner wall end face of the multifunctional dehumidification component is fixedly connected to multiple protective boxes, and humidity sensors and temperature sensors are respectively installed in the multiple protective boxes.

8. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 7, characterized in that, An automatic lifting protective curtain is fixedly connected to the bottom end face of the replacement and maintenance box. A connecting plate is fixedly connected to the inner wall end face of the automatic lifting protective curtain. Multiple multi-axis automatic telescopic rods are fixedly connected between the connecting plate and the automatic lifting protective curtain. The bottom end faces of the multiple multi-axis automatic telescopic rods are fixedly connected to the bottom of the automatic lifting protective curtain. A base plate is fixedly connected to the bottom end face of the automatic lifting protective curtain. A second protective door is provided on the end face of the automatic lifting protective curtain that is in contact with the initial automatic lifting disinfection curtain.

9. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 8, characterized in that, The replacement and maintenance box is fixedly connected to a sealing plate at the bottom end of the main cable. An air purifier and a gas storage tank are installed on the bottom end of the sealing plate. The gas storage tank is connected to an oxygen delivery main pipe, which is connected to multiple gas delivery telescopic pipes. These multiple gas delivery telescopic pipes are located on the inner wall end of the automatic lifting protective curtain. The air purifier is connected to a purification pipe, which is connected to multiple first telescopic exhaust pipes. Gas detection sensors are installed on multiple end faces of the replacement and maintenance box and the main cable.

10. A multifunctional composite dehumidification system for intelligent monitoring of the main cable of a suspension bridge according to claim 9, characterized in that, The bottom end face of the preliminary automatic lifting disinfection curtain is fixedly connected to the bottom end face of the automatic lifting protective curtain. A protective door is provided on one side end face of the preliminary automatic lifting disinfection curtain. The replacement and maintenance box is located on one side end face of the preliminary automatic lifting disinfection curtain and is equipped with a disinfection machine. A disinfection delivery pipe is connected between the disinfection machine and the preliminary automatic lifting disinfection curtain. Multiple second telescopic air extraction pipes are provided on the inner wall end face of the preliminary automatic lifting disinfection curtain. The second telescopic air extraction pipes are connected to a vacuum pump.

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