Dehumidification and ventilation mechanism for comprehensive pipe gallery for airport
By installing a centralized interconnected pipeline system and temperature and humidity sensors in a large integrated utility tunnel, combined with fans and condensers, unified ventilation and dehumidification control of multiple utility tunnels is achieved, solving the problems of low drying efficiency and high cost, and improving system efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-13
AI Technical Summary
In large integrated utility tunnels such as airports, existing dehumidification and ventilation systems are unable to fully cover and diffuse dry air, resulting in low drying efficiency and high costs.
The system employs a first dehumidification and ventilation mechanism and a second dehumidification and ventilation mechanism. Multiple pipe corridors are connected into a whole through a centralized connecting pipe system. Combined with temperature and humidity sensors and controllers, unified ventilation and dehumidification control is achieved. Fans and condensers are used to circulate and dehumidify the air.
It improves the overall efficiency and fire safety of the ventilation system, reduces energy consumption and investment costs, and ensures effective humidity control in each area.
Smart Images

Figure CN223992327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated utility tunnel ventilation technology, specifically a dehumidification and ventilation mechanism for integrated utility tunnels used in airports. Background Technology
[0002] Integrated utility tunnels, also known as "common trenches" or "underground urban pipeline corridors," are an important form of modern urban underground space development. Located underground in cities, they are used to centrally house various municipal pipelines such as electricity, communications, water supply, drainage, heating, gas, and radio and television. Through the intensive layout and management of main channels, branch channels, and equipment rooms, they achieve the goals of resource sharing, collaborative management, and unified maintenance. Integrated utility tunnels are kept dry by setting up dehumidification and ventilation mechanisms to maintain a good tunnel environment and prevent excessively humid air from reducing the lifespan of pipelines.
[0003] A search revealed a Chinese patent with authorization number CN220379898U, which discloses a dehumidification and ventilation mechanism for integrated utility tunnels. This mechanism includes a condenser and a ventilation tower, both located in the external environment and connected to the integrated utility tunnel. A fan is connected to either the condenser or the ventilation tower via a valve module. Humidity sensors are located inside the integrated utility tunnel and on the ventilation tower, respectively detecting humidity in the external and internal environments. A controller receives humidity data from the sensors in the external and internal environments and also controls the valve module. By switching between two circulation modes, the mechanism can either directly ventilate the external environment into the tunnel to reduce humidity and energy consumption, or activate the condenser to perform internal circulation, thus drying the air inside the tunnel and preventing excessive moisture from entering and increasing humidity. This design combines the advantages of both modes.
[0004] The above-mentioned patent has the following shortcomings: When facing large integrated utility tunnels such as airports, in order to meet fire protection requirements, it is usually necessary to install multiple fire doors in the utility tunnel to divide it into multiple sections. When a single fan and condenser discharge dry air into the utility tunnel, it is difficult to cover and diffuse it throughout the entire utility tunnel, resulting in poor drying time and efficiency. Installing a fan and condenser in each section for dehumidification and ventilation is costly. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide a dehumidification and ventilation mechanism for integrated utility tunnels in airports, so as to solve the technical problems of incomplete dry air coverage, low drying efficiency, and high energy consumption and investment costs of multi-area independent dehumidification systems in large integrated utility tunnels.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dehumidification and ventilation mechanism for an airport integrated utility tunnel, comprising an integrated utility tunnel, a first dehumidification and ventilation mechanism, and a second dehumidification and ventilation mechanism. The first dehumidification and ventilation mechanism includes an exhaust pipe, on which a first electronic valve is installed. One end of the exhaust pipe is connected to a first connecting pipe. The top of the first connecting pipe is connected to a first fan via a first fan inlet pipe. The outlet end of the first fan is connected to a condenser via a pipe. One end of the condenser is provided with a drain pipe. One side of the condenser is connected to a second connecting pipe via a condenser exhaust pipe. The second connecting pipe is connected to the interior of the integrated utility tunnel via a first inlet pipe. A second electronic valve is installed on the first inlet pipe.
[0007] By adopting the above technical solution, the first fan and the condenser work together. The first fan provides power to drive the airflow, while the condenser condenses the moisture in the air to achieve the dehumidification effect.
[0008] Furthermore, the integrated utility tunnel is divided into several sections by fireproof partitions, and every three integrated utility tunnels are connected to the same first connecting pipe through exhaust pipes.
[0009] By adopting the above technical solution, every three integrated utility tunnels are connected to the same first connecting pipe through exhaust pipes, making the ventilation system more centralized and efficient, realizing unified ventilation and dehumidification control of the three integrated utility tunnels, and improving the overall efficiency of the ventilation system.
[0010] Furthermore, the second connecting pipe is connected to three of the first air inlet pipes, each of the integrated pipe corridors is equipped with a temperature and humidity sensor, and a controller is installed on the top of every three integrated pipe corridors.
[0011] By adopting the above technical solution, the temperature and humidity sensor can monitor the temperature and humidity of the area in real time and promptly feed back the temperature and humidity information to the controller via electrical signals.
[0012] Furthermore, the second dehumidification and ventilation mechanism includes a second air inlet pipe, on which a third electronic valve is installed.
[0013] By adopting the above technical solution, the second air intake pipe serves as the air intake channel for the second dehumidification and ventilation mechanism, ensuring that fresh external air can enter each isolated integrated utility tunnel.
[0014] Furthermore, one end of the second air intake pipe is connected to a third connecting pipe, and the third connecting pipe is connected to the second air intake pipe at the top of each integrated utility tunnel.
[0015] By adopting the above technical solution, the third connecting pipe serves as the main pipe of the ventilation system and is connected to the second air inlet pipe at the top of each integrated utility tunnel, ensuring that the ventilation system can cover every area of the integrated utility tunnel and improving the ventilation effect.
[0016] Furthermore, the top of the third connecting pipe is connected to a second fan via a second fan inlet pipe, and the second fan is connected to an external ventilation tower via an air inlet pipe.
[0017] By adopting the above technical solution, the third connecting pipe, as part of the ventilation system, is connected to the second fan at its top through the second fan inlet pipe, making the air flow path more direct and smooth.
[0018] In summary, the present invention has the following main advantages:
[0019] 1. This utility model sets up a first dehumidification and ventilation mechanism. Temperature and humidity sensors detect and monitor the temperature and humidity in the integrated corridor pipe in real time. When the humidity exceeds the threshold, the equipment is connected to the first dehumidification and ventilation mechanism to carry out dehumidification and ventilation internal circulation. One fan and condenser can handle the air circulation in three areas. Targeted internal circulation dehumidification is carried out in the area where the humidity exceeds the threshold, while the other areas are circulated normally. As the number of areas corresponding to the fan increases, the controller gradually increases the power of the fan to improve the dehumidification and ventilation efficiency and effectively reduce energy consumption and investment costs.
[0020] 2. This utility model, by setting up a second dehumidification and ventilation mechanism, connects with an external ventilation tower to allow fresh air from the outside to enter when the temperature and humidity inside the integrated corridor are normal, thereby reducing energy consumption. One set of equipment can simultaneously serve multiple partitioned integrated corridors, ensuring normal function while reducing the number of equipment and lowering costs. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of the first dehumidification and ventilation mechanism of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the second dehumidification and ventilation mechanism of this utility model;
[0024] Figure 4 This is a schematic diagram of the temperature and humidity sensor of this utility model.
[0025] In the diagram: 1. Integrated utility tunnel; 2. First dehumidification and ventilation mechanism; 201. Exhaust pipe; 202. First electronic valve; 203. First connecting pipe; 204. First fan intake pipe; 205. First fan; 206. Condenser; 207. Condenser exhaust pipe; 208. Drain pipe; 209. Second connecting pipe; 210. First intake pipe; 211. Second electronic valve; 3. Second dehumidification and ventilation mechanism; 301. Second intake pipe; 302. Third electronic valve; 303. Third connecting pipe; 304. Second fan intake pipe; 305. Second fan; 306. Intake duct; 4. Fireproof partition door; 5. Controller; 6. Temperature and humidity sensor. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0027] A dehumidification and ventilation system for integrated utility tunnels in airports, such as Figures 1-4 As shown, the system includes a utility tunnel 1, a first dehumidification and ventilation mechanism 2, and a second dehumidification and ventilation mechanism 3. The first dehumidification and ventilation mechanism 2 includes an exhaust pipe 201, on which a first electronic valve 202 is installed. One end of the exhaust pipe 201 is connected to a first connecting pipe 203. The top of the first connecting pipe 203 is connected to a first fan 205 via a first fan inlet pipe 204. The outlet end of the first fan 205 is connected to a condenser 206 via a pipe. One end of the condenser 206 is provided with a drain pipe 208, and one side of the condenser 206 is connected to a condenser exhaust pipe. 207 is connected to a second connecting pipe 209, which is connected to the interior of the integrated utility tunnel 1 via a first air inlet pipe 210. A second electronic valve 211 is installed on the first air inlet pipe 210. A first fan 205 works in conjunction with a condenser 206. The first fan 205 provides power to drive airflow, while the condenser 206 condenses moisture in the air to achieve dehumidification. The speed and power of the first fan 205 can be adjusted according to the actual conditions inside the integrated utility tunnel 1 to achieve more efficient ventilation and dehumidification and reduce energy consumption.
[0028] See Figure 1 , Figure 2The integrated utility tunnel 1 is divided into several sections by fireproof partition doors 4. Every three integrated utility tunnels 1 are connected to the same first connecting pipe 203 through exhaust pipes 201. This makes the ventilation system more centralized and efficient, achieving unified ventilation and dehumidification control for the three integrated utility tunnels 1 and improving the overall efficiency of the ventilation system. The fireproof partition doors 4, as fire barriers, can quickly isolate the fire source in the event of a fire, protecting other areas from the fire and improving the fire safety of the entire utility tunnel system.
[0029] See Figure 1 , Figure 4 The second connecting pipe 209 is connected to three first air inlet pipes 210. Each integrated pipe gallery 1 is equipped with a temperature and humidity sensor 6. A controller 5 is installed on the top of every three integrated pipe galleries 1. The temperature and humidity sensor 6 can monitor the temperature and humidity of the area in real time and promptly feed back the temperature and humidity to the controller 5 via electrical signals. Based on the data fed back by the temperature and humidity sensor 6, the controller 5 can accurately control the airflow in the second connecting pipe 209 and the first air inlet pipe 210, as well as the working status of other components in the first dehumidification and ventilation mechanism 2, thereby achieving precise ventilation and dehumidification control.
[0030] See Figure 1 , Figure 3 The second dehumidification and ventilation mechanism 3 includes a second air inlet pipe 301, on which a third electronic valve 302 is installed. The second air inlet pipe 301 serves as the air intake channel for the second dehumidification and ventilation mechanism 3, ensuring that fresh external air can enter each isolated integrated pipe gallery 1. The opening and closing of the third electronic valve 302 is adjusted by the controller 5, which can flexibly adjust the entry of fresh air according to the actual humidity and ventilation needs in the integrated pipe gallery 1, thereby achieving the best ventilation effect.
[0031] See Figure 1 , Figure 3 One end of the second air intake pipe 301 is connected to a third connecting pipe 303, and the third connecting pipe 303 is connected to the second air intake pipe 301 at the top of each integrated utility tunnel 1. The third connecting pipe 303 serves as the main pipe of the ventilation system and is connected to the second air intake pipe 301 at the top of each integrated utility tunnel 1, ensuring that the ventilation system can cover every area of the integrated utility tunnel 1 and improving the ventilation effect. By connecting each second air intake pipe 301 through the third connecting pipe 303, an integrated ventilation system is formed, which simplifies the system structure, reduces the number of pipes and connectors, and lowers the cost.
[0032] See Figure 1 , Figure 3The top of the third connecting pipe 303 is connected to the second fan 305 through the second fan inlet pipe 304. The second fan 305 is connected to the external ventilation tower through the air inlet pipe 306. As part of the ventilation system, the top of the third connecting pipe 303 is connected to the second fan 305 through the second fan inlet pipe 304, making the air flow path more direct and smooth. The second fan 305, as a power source, can quickly introduce fresh air from outside into the third connecting pipe 303 through the air inlet pipe 306 through its strong suction and air delivery capacity, and then deliver it to various areas of the integrated pipe gallery 1 to achieve efficient ventilation.
[0033] The implementation principle of this utility model is as follows: First, the temperature and humidity sensor 6 monitors the temperature and humidity in each integrated pipe gallery 1 in real time. When the temperature and humidity are normal, the third electronic valve 302 is in the open state. The second fan 305 introduces external gas into the third connecting pipe 303 through the air inlet pipe 306 and discharges it through the second air inlet pipe 301. When the temperature and humidity sensor 6 detects that the humidity in the corresponding integrated pipe gallery 1 is too high, the controller 5 closes the third electronic valve 302 on the second air inlet pipe 301 connected to the integrated pipe gallery 1, and at the same time opens the corresponding electronic valve 302. The corresponding first electronic valve 202 and second electronic valve 211 cause the first fan 205 to draw gas into the first connecting pipe 203 through the exhaust pipe 201, and the gas passes through the first fan 205 through the first fan intake pipe 204 and enters the condenser 206. Then, the dry air is blown into the integrated pipe gallery 1 through the second connecting pipe 209 and the corresponding first intake pipe 210. When multiple temperature and humidity sensors 6 corresponding to the first fan 205 simultaneously detect that the humidity is too high, the controller 5 controls the first fan 205 to increase its power.
[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. An air dehumidifying and ventilating mechanism for an airport utility tunnel, characterized by: The utility model provides a kind of integrated pipe gallery (1), first dehumidification ventilation mechanism (2) and second dehumidification ventilation mechanism (3), the first dehumidification ventilation mechanism (2) includes exhaust pipe (201), first electronic valve (202) is arranged on the exhaust pipe (201), one end of the exhaust pipe (201) is communicated with first communication pipeline (203), the top of the first communication pipeline (203) is communicated with first fan (205) by first fan air inlet pipe (204), the air outlet end of the first fan (205) is connected with condenser (206) by pipeline, one end of the condenser (206) is provided with drain pipe (208), the condenser (206) is communicated with second communication pipeline (209) by condenser exhaust pipe (207) on one side, the second communication pipeline (209) is communicated with integrated pipe gallery (1) inside by first air inlet pipe (210), and second electronic valve (211) is arranged on the first air inlet pipe (210).
2. The dehumidifying and ventilating mechanism for an airport-used comprehensive pipe gallery according to claim 1, characterized in that: The integrated pipe gallery (1) is cut off into several by fireproof door (4), wherein every three integrated pipe gallery (1) is communicated to the same first communication pipeline (203) by exhaust pipe (201).
3. The dehumidifying and ventilating mechanism for an airport-used comprehensive pipe gallery according to claim 1, characterized in that: The second communication pipeline (209) is communicated with three first air inlet pipes (210), temperature and humidity sensor (6) is arranged in each integrated pipe gallery (1), and one controller (5) is arranged on the top of every three integrated pipe gallery (1).
4. The dehumidifying and ventilating mechanism for an airport-used comprehensive pipe gallery according to claim 1, characterized in that: The second dehumidification ventilation mechanism (3) includes second air inlet pipe (301), and third electronic valve (302) is arranged on the second air inlet pipe (301).
5. The dehumidifying and ventilating mechanism for an airport-used comprehensive pipe gallery according to claim 4, characterized in that: One end of the second air inlet pipe (301) is communicated with third communication pipe (303), and third communication pipe (303) is communicated with second air inlet pipe (301) on the top of each integrated pipe gallery (1).
6. The dehumidifying and ventilating mechanism for an airport-used comprehensive pipe gallery according to claim 5, characterized in that: The top of the third communication pipe (303) is communicated with second fan (305) by second fan air inlet pipe (304), and the second fan (305) is connected with external ventilation building by air inlet pipeline (306).
Citation Information
Patent Citations
Dehumidification and ventilation mechanism for comprehensive pipe gallery
CN220379898U
Cited By
Ventilation and heat dissipation structure of electrical cabinet
CN122315518A