A bamboo arch bridge dehumidification device, dehumidification method and bamboo arch bridge

Abstract

This invention discloses a dehumidification device, dehumidification method, and bamboo arch bridge, belonging to the field of arch bridge technology. The device includes two air inlets on the left and right sides of the outer cover and two air outlets on the top. An air supply fan and a heating plate are sequentially arranged inside each air inlet. A condenser plate is located between the two heating plates, and an air supply channel connects the heating plates and the condenser plate. The top and sides of the condenser plate are sealed, while the bottom is open and connected to a drain pipe. The heating plates have a honeycomb structure composed of fiberglass-like material, with water-absorbing material attached to the honeycomb structure. This bamboo arch bridge dehumidification device can achieve bidirectional dehumidification. The air supply fan and heating plate on both sides have dehumidification functions, increasing dehumidification efficiency and ensuring good dehumidification effect. Simultaneously, the drain pipe directly discharges water, preventing internal water accumulation that could corrode the dehumidifier and bamboo, thus ensuring the safety of the bamboo arch bridge, especially at the arch feet.

Description

Technical Field

[0001] This invention belongs to the field of arch bridge technology, and particularly relates to a dehumidification device, dehumidification method, and bamboo arch bridge. Background Technology

[0002] An arch bridge is a bridge that uses an arch as its main load-bearing structure. Due to its good load-bearing capacity and long service life, it is often used as a pedestrian bridge or scenic bridge with a short span. The main construction materials for arch bridges in the current technology include reinforced concrete, masonry, and wood, but regardless of the material used, there are certain limitations in the application of arch bridges.

[0003] In the context of "dual carbon" (carbon dioxide, carbon emissions, and carbon sequestration), reducing carbon emissions from buildings has become a trend. The use of natural, renewable, and low-carbon environmentally friendly organic materials is a popular choice, such as bamboo. Processing bamboo into structural components is not only low-carbon and environmentally friendly but also convenient for construction. Bamboo possesses excellent compressive strength, making it suitable for building arch bridges. Using bamboo to build bamboo arch bridges not only effectively avoids the environmental pollution caused by building traditional concrete bridges but also results in a more natural, aesthetically pleasing, and practical design.

[0004] However, when the humidity of bamboo reaches 20%RH, bamboo decay fungi will grow and multiply, thereby damaging the bamboo structure. Since the arch feet of bamboo arch bridges are subjected to complex forces and are close to the river surface, they are more susceptible to the effects of moisture and corrosion. Therefore, in order to reduce the rate of bamboo corrosion, bamboo arch bridges need to be dehumidified, thereby extending their service life. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a bamboo arch bridge dehumidification device, a dehumidification method, and a bamboo arch bridge, aiming to solve or improve at least one of the aforementioned technical problems.

[0006] To achieve the above objectives, in one aspect, the present invention provides a dehumidification device for bamboo arch bridges, the device comprising: The dehumidifier has two air inlets on the left and right sides of its outer cover and two air outlets on the top. An air supply fan and a heating plate are sequentially arranged inside each of the air inlets. A condenser plate is located between the two heating plates. An air supply channel connects the heating plates and the condenser plate. The condenser plate is sealed at the top and sides, but open at the bottom and connected to a drain pipe. The heating plates have a honeycomb structure made of fiberglass-like material, with absorbent material attached to the honeycomb structure. The heating plates are rotatably connected to the dehumidifier via a central axis. Multiple heating modules, each composed of the honeycomb structure, are arranged circumferentially around the central axis. The air supply channel covers one of the heating modules, and when the heating plate rotates, the multiple heating modules sequentially overlap with the air supply channel.

[0007] Preferably, the absorbent material is one or more of silica gel, hydrogel, and lithium chloride.

[0008] Preferably, the dehumidifier further includes a control board located inside the outer cover of the dehumidifier and a humidity monitoring meter located outside the outer cover of the dehumidifier. The control board has a built-in heating plate control module, a condenser plate control module, a fan control module and a humidity monitoring meter control module.

[0009] Compared with the prior art, the dehumidification device of the present invention has the following beneficial effects: This bamboo arch bridge dehumidification device can achieve bidirectional dehumidification. It is equipped with air supply fans and heating plates on both the left and right sides, all of which have dehumidification functions, increasing the dehumidification efficiency and ensuring good dehumidification effect. At the same time, the drainage pipe directly discharges water, avoiding internal water accumulation that could lead to corrosion of the dehumidifier and bamboo, thus ensuring the safety of the bamboo arch bridge, especially at the arch foot.

[0010] On the other hand, the present invention also provides a method for dehumidifying a bamboo arch bridge, which is implemented using the aforementioned bamboo arch bridge dehumidification device. The method includes: Obtain the detected air humidity value at the arch foot position of the bamboo arch bridge collected by the sensor; Based on the detected air humidity value, the humidity difference between the air humidity at the arch foot of the bamboo arch bridge and a preset humidity threshold is determined; The dehumidification operation of the dehumidification device is controlled based on the humidity difference between the detected air humidity value and the preset humidity threshold. The dehumidification operation includes: When the detected air humidity value is greater than the preset humidity threshold, the dehumidification device is controlled to operate the dehumidification function. When the detected air humidity value is less than or equal to the preset humidity threshold, the dehumidification device is controlled to operate in standby mode.

[0011] Preferably, when the detected air humidity value is greater than the preset humidity threshold, controlling the dehumidification device to operate the dehumidification function specifically includes: The control board of the dehumidifier is turned on, and the control board controls the air supply fan of the dehumidifier to rotate. At the same time, it controls the heating plate of the dehumidifier to heat up, so that the humid air is heated into hot humid air and sent to the condenser plate through the air supply channel. The control board controls the condenser plate to work, liquefying the hot humid air into water droplets and draining them through the drainage channel.

[0012] Preferably, the preset humidity threshold is 20%RH.

[0013] Compared with the prior art, the dehumidification method of the present invention has the following beneficial effects: When the humidity reaches a threshold, the dehumidification device of the present invention is used to implement a dehumidification method. The control board starts the dehumidification device to work. The air supply fan sends the humid gas to the heating plate. After the heating plate heats the air, the hot and humid air is sent to the condensing plate through the air supply channel. The hot and humid air liquefies into water droplets when it encounters the condensing plate and finally flows into the drain pipe and is discharged.

[0014] In another aspect, the present invention also provides a bamboo arch bridge, including the above-mentioned bamboo arch bridge dehumidification device.

[0015] Preferably, the dehumidification device for the bamboo arch bridge is fixed at the arch foot of the bamboo arch bridge.

[0016] Compared with the prior art, the bamboo arch bridge of the present invention has the following beneficial effects: The bamboo arch bridge incorporating the dehumidification device of this invention has an automatic dehumidification function. By installing the dehumidification device in the ventilation gaps of the bamboo arch ring or on the arch foot, the relative humidity of the environment in which the bamboo arch bridge is located can be automatically monitored, especially at the arch foot closest to the water surface. The humidity is monitored in real time, and when the humidity exceeds the set threshold, the dehumidification device is automatically activated to perform dehumidification without manual intervention in drainage. This ensures that the humidity of the bamboo does not exceed 20%RH, thereby reducing the growth and reproduction of bamboo decay fungi, slowing down the corrosion rate of bamboo, and extending the service life of the bamboo arch bridge. 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the bamboo arch bridge dehumidification device according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the fan structure in the bamboo arch bridge dehumidification device of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the heating plate in the bamboo arch bridge dehumidification device of Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the condenser plate in the bamboo arch bridge dehumidification device of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the bamboo arch bridge in Embodiment 3 of the present invention; Figure 6 This is a schematic diagram of the load-bearing unit structure in the bamboo arch bridge of Embodiment 3 of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 for Figure 6 Cross-sectional view of the load-bearing unit.

[0019] The components include: 1. Dehumidifier; 2. Humidity monitoring meter; 3. Dehumidifier cover; 4. Exhaust port; 5. Air inlet; 6. Hook; 7. First air supply fan; 7'. Second air supply fan; 8. First heating plate; 8'. Second heating plate; 9. Central shaft; 10. Air supply channel; 11. Condensation plate; 12. Drainage pipe; 13. Rotating shaft; 14. Belt; 15. Control panel; 100. Arch foot; 200. Bamboo arch ring; 300. Connecting beam; 400. Support body; 500. Guardrail; 600. Handrail; 700. Bamboo plank bridge deck; 800. Bridge pier. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1: The following is combined Figures 1-4 The present invention describes a bamboo arch bridge dehumidification device.

[0023] refer to Figure 1 , Figure 1 A schematic diagram of a bamboo arch bridge dehumidification device according to Embodiment 1 of the present invention is shown. The dehumidification device 1 includes two dehumidification device covers 3, an air supply fan, a heating plate, a condenser plate 11, an air supply channel 10, and a drain pipe 12 disposed inside the two dehumidification device covers 3, and a control board 15 for controlling the operation of the dehumidification device. The air supply fan is disposed inside the panel of the dehumidification device cover 3. The heating plate has a rotating structure and is located at the rear end of the air supply fan. The air supply channel 10 is fixed to the rear end of the uppermost heating plate. The condenser plate 11 is located in the middle of the dehumidification device 1. The drain pipe 12 is a semi-circular pipe with an open top, located below the condenser plate 11, and its top opening is connected to and fixed to the condenser plate 11.

[0024] Specifically, the outer covers 3 of the two dehumidifiers are mated together and detachably connected. The outer covers 3 of the two dehumidifiers have the same structure, each including a side plate and an edge plate protruding from the side plate to one side. An air inlet 5 is opened on the side plate, and an exhaust port 4 is opened on the edge plate at the top. The edge plates of the two dehumidifiers are mated together to form the shell of the entire dehumidifier. The interior has a cavity to accommodate the various components, and air inlets 5 are opened on both sides of the cavity. For ease of description, the positions of the two air inlets 5 are defined as the left and right sides, and the side with the exhaust port 4 is defined as the upper side. The cavity formed by the combination of the outer covers 3 of the two dehumidification devices is provided with the first air supply fan 7, the first heating plate 8, the condenser plate 11, the second heating plate 8', and the second air supply fan 7' from left to right. The first air supply fan 7, the first heating plate 8, and the condenser plate 11 form a dehumidification system on the left side, and the second air supply fan 7', the second heating plate 8', and the condenser plate 11 form a dehumidification system on the right side. The two dehumidification systems are symmetrically distributed and share a condenser plate 11.

[0025] Specifically, such as Figure 2 As shown, the first air supply fan 7 and the second air supply fan 7' have the same structure and are symmetrically distributed. Taking the first air supply fan 7 as an example, the air supply fan is located inside the air inlet 5 in the middle of the panel of the outer cover 3 of the dehumidifier, and is used to introduce moisture into the dehumidifier. The air supply fan includes a fan shaft and multiple fan blades evenly distributed circumferentially on the fan shaft. The fan shaft is driven to a drive mechanism, such as a rotary motor. This part adopts conventional means of existing technology and will not be described in detail here.

[0026] Specifically, such as Figure 3 As shown, the first heating plate 8 and the second heating plate 8' have the same structure and are symmetrically distributed. Taking the first heating plate 8 as an example, the heating plate is a rotary heating structure, including four independent heating modules made of special heat-resistant materials and a plate body for fixing the four heating modules. The plate body is also made of special heat-resistant material and is rotatably connected to a central shaft 9. The four heating modules are arranged in a circular array with the central shaft 9 as the origin. The plate body is driven to rotate by a rotating shaft 13 and a belt 14. The rotating shaft 13 is fixed at the upper left corner of the heating plate and is connected to a drive mechanism that drives its rotation. The rotation of the rotating shaft 13 drives the heating plate to rotate around the central shaft 9. The heating modules are honeycomb structures composed of glass fiber materials, and highly absorbent materials such as silicone, hydrogel, and lithium chloride are attached to the honeycomb structure.

[0027] Specifically, the air supply channel 10 is located on the side of the first heating plate 8 and the second heating plate 8' facing the condenser plate 11, fixed and connected to the condenser plate 11. The air supply channel 10 covers one of the heating modules, but does not rotate with the rotation of the heating plate. When the heating plate rotates, the four heating modules are sequentially aligned with the air supply channel 10.

[0028] Specifically, the condenser plate 11 is located in the center of the dehumidification device 1 and consists of one vertical plate and 22 horizontal plates. The horizontal plates are evenly distributed on the left and right sides of the vertical plate. The condenser plate 11 is provided with a cover for sealing. The cover wraps the condenser plate 11 in a relatively sealed space. The cover wraps the condenser plate 11 from the top and all sides. The bottom has a drain outlet, which is connected to the drain pipe 12. The cover has an air inlet that is connected to the air supply channel 10. The air inlet is connected to the air outlet of the air supply channel 10.

[0029] Specifically, the control board 15 is located above the heating plate and is fixed to the top right side of the inner cover of the dehumidification device 1. The control board 15 contains a heating plate control module, a condenser plate control module, a fan control module, and a humidity monitoring meter control module.

[0030] The scheme was further optimized so that the two dehumidification systems operate synchronously through the central shaft 9, and the rotating shaft 13 connecting the two central shafts 9 is connected to the same drive mechanism.

[0031] To further optimize the solution, a humidity monitoring meter 2 is connected to the upper right side plate of the outer cover 3 of the dehumidifier 1. The humidity monitoring meter 2 contains a humidity sensor and a signal processing module that is connected to the control board 15.

[0032] To further optimize the design, the upper and lower ends of the outer side of the dehumidifier cover 3 panel are equipped with detachable and adjustable hooks 6. The hooks 6 are arc-shaped and fit the round bamboo pole, making it easy to fix the dehumidifier 1 to the bamboo arch bridge.

[0033] The operating principle of Embodiment 1 of the present invention is as follows: The dehumidification device 1, equipped with a humidity monitoring meter 2, monitors the humidity at the base of the bamboo arch bridge. When the humidity exceeds a threshold, the dehumidification system is automatically triggered, causing the dehumidification device 1 to operate automatically. When the humidity drops below the threshold, the dehumidification device 1 stops operating. A fan supplies dehumidifying gas, which is heated by a heating plate to ensure effective dehumidification. The heated gas is then transported to a condenser plate 11 via an air supply channel 10. The heated gas condenses into water droplets on the condenser plate 11 and is discharged through a drain pipe 12 at the bottom, achieving dehumidification. The condenser plate 11 is designed as a sealed space to increase condensation efficiency, and the drain pipe 12 at the bottom of the condenser plate 11 directly discharges the water droplets, eliminating the need for manual drainage. This embodiment of the dehumidification device 1 features a reasonable structural design and intelligent system operation, effectively preventing corrosion of the bamboo arch bridge due to excessive humidity.

[0034] Example 2: Embodiment 2 of the present invention provides a method for dehumidifying bamboo arch bridges, comprising: Obtain the detected air humidity value at the arch foot position of the bamboo arch bridge collected by the sensor; Based on the detected air humidity value, the humidity difference between the air humidity at the arch foot of the bamboo arch bridge and a preset humidity threshold is determined; The dehumidification operation of the dehumidification device is controlled based on the humidity difference between the detected air humidity value and the preset humidity threshold. The dehumidification operation includes: When the detected air humidity value is greater than the preset humidity threshold, the dehumidification device is controlled to operate the dehumidification function. When the detected air humidity value is less than or equal to the preset humidity threshold, the dehumidification device is controlled to operate in standby mode.

[0035] Furthermore, when the detected air humidity value is greater than the preset humidity threshold, controlling the dehumidification device to operate the dehumidification function specifically includes: The control board of the dehumidifier is turned on, and the control board controls the air supply fan of the dehumidifier to rotate. At the same time, it controls the heating plate of the dehumidifier to heat up, so that the humid air is heated into hot humid air and sent to the condenser plate through the air supply channel. The control board controls the condenser plate to work, liquefying the hot humid air into water droplets and draining them through the drainage channel.

[0036] Furthermore, the preset humidity threshold is 20%RH.

[0037] Example 3: The following is combined Figures 5-8 The bamboo arch bridge of the present invention is described.

[0038] refer to Figure 5 , Figure 5 A schematic diagram of a bamboo arch bridge according to Embodiment 3 of the present invention is shown. The bamboo arch bridge includes several load-bearing units supported between two piers 800. Each load-bearing unit includes an arched bamboo arch ring 200 and two arch feet 100 fixed to the bottom of the bamboo arch ring 200. The arch feet 100 are integrally cast or fixedly connected to the inner side of the pier 800 and protrude obliquely upward at a certain angle. The bamboo arch ring 200 is connected to the protruding end face. The bamboo arch ring 200 is made of multiple round bamboo bundles wrapped together and arched across the piers on both sides. The multiple bamboo arch rings 200 are arranged at intervals along the width direction of the bamboo arch bridge to form support at the bottom. Multiple connecting beams 300 are connected above the multiple bamboo arch rings 200. The connecting beam 300 spans the width of the bamboo arch bridge; a support body 400 supports the bamboo arch ring 200 and the bamboo bridge deck 700; guardrails 500 are installed on both sides of the bridge, and handrails 600 are installed on the top of the guardrails. The connecting beam 300, the bamboo bridge deck 700, the guardrails 500, and the handrails 600 are all made of bamboo. The support body 400 is preferably made of bamboo, but it can also be made of a lighter metal material with better strength, such as aluminum alloy.

[0039] Further optimization of the design involves creating a ventilation gap inside the bamboo arch ring 200. This is achieved by arranging multiple round bamboos in a ring with a gap, allowing air to enter the ventilation gap through the gap.

[0040] The solution is further optimized by incorporating a dehumidification device 1, as shown in Example 1, within the ventilation gap. Figure 6 As shown.

[0041] The dehumidifier 1 is further optimized by fixing it to the ventilation gap inside the bamboo arch ring 200 via hooks 6. Specifically, the dehumidifier 1 is placed in the ventilation gap, and the hooks 6 are hung on the round bamboo. Figure 7 As shown.

[0042] Further optimize the solution by placing dehumidifier 1 at the arch foot 100, close to the water surface, such as... Figure 8 As shown.

[0043] It should be understood that when connecting the dehumidifier 1 to a solid bamboo arch ring 200 without ventilation gaps, other fixing positions and fixing methods can be selected. For example, a hole can be made in the center of the arch foot 100 to accommodate the dehumidifier 1, and the hole can be reinforced with a steel plate. The dehumidifier 1 can then be placed in and fixed at the hole.

[0044] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.

[0045] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "axial", "radial", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A dehumidification device for bamboo arch bridges, characterized in that, The device includes two air inlets located on the left and right sides of the outer cover of the dehumidifier and two air outlets located on the top. An air supply fan and a heating plate are sequentially arranged inside each of the two air inlets. A condenser plate is located between the two heating plates. An air supply channel connects the heating plates and the condenser plate. The condenser plate is sealed at the top and sides, but open at the bottom and connected to a drain pipe. The heating plates have a honeycomb structure made of fiberglass-like material, and water-absorbing material is attached to the honeycomb structure. The heating plates are rotatably connected inside the dehumidifier via a central axis. The heating plates have multiple heating modules arranged circumferentially around the central axis, and each heating module is composed of the honeycomb structure. The air supply channel covers one of the heating modules, and when the heating plate rotates, the multiple heating modules sequentially overlap with the air supply channel.

2. The bamboo arch bridge dehumidification device according to claim 1, characterized in that, The absorbent material is one or more of silica gel, hydrogel, and lithium chloride.

3. The dehumidification device for bamboo arch bridges according to claim 1, characterized in that, It also includes a control board located inside the dehumidifier and a humidity monitoring meter located outside the dehumidifier. The control board has a built-in heating plate control module, a condenser plate control module, a fan control module, and a humidity monitoring meter control module.

4. A method for dehumidifying bamboo arch bridges, characterized in that, The method is performed using the bamboo arch bridge dehumidification device according to any one of claims 1 to 3, and includes: Obtain the detected air humidity value at the arch foot position of the bamboo arch bridge collected by the sensor; Based on the detected air humidity value, the humidity difference between the air humidity at the arch foot of the bamboo arch bridge and a preset humidity threshold is determined; The dehumidification operation of the dehumidification device is controlled based on the humidity difference between the detected air humidity value and the preset humidity threshold. The dehumidification operation includes: When the detected air humidity value is greater than the preset humidity threshold, the dehumidification device is controlled to operate the dehumidification function. When the detected air humidity value is less than or equal to the preset humidity threshold, the dehumidification device is controlled to operate in standby mode.

5. The dehumidification method for bamboo arch bridges according to claim 4, characterized in that, When the detected air humidity value is greater than the preset humidity threshold, controlling the dehumidification device to operate the dehumidification function specifically includes: The control board of the dehumidifier is turned on, and the control board controls the air supply fan of the dehumidifier to rotate. At the same time, it controls the heating plate of the dehumidifier to heat up, so that the humid air is heated into hot humid air and sent to the condenser plate through the air supply channel. The control board controls the condenser plate to work, liquefying the hot humid air into water droplets and draining them through the drainage channel.

6. The dehumidification method for bamboo arch bridges according to claim 4, characterized in that, The preset humidity threshold is 20%RH.

7. A bamboo arch bridge, characterized in that, The dehumidification device for bamboo arch bridges includes any one of claims 1 to 3 above.

8. The bamboo arch bridge according to claim 7, characterized in that, The dehumidification device for the bamboo arch bridge is fixed at the arch foot of the bamboo arch bridge.

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