Tunnel forced ventilation cooling device and method

A technology of forced ventilation and cooling device, applied in the field of tunnels, can solve the problems of high temperature of highway tunnels, poor air cleanliness, poor engineering feasibility, etc., and achieve the effects of reducing air temperature, simple construction and strong practicability

Active Publication Date: 2015-03-18
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cooling methods used in tunnels include ventilation, cold air supply, and laying of cold water pipes. However, road tunnels have high temperatures, large air volumes, and poor air cleanliness. The use of ordinary cooling technologies is expensive and the engineering feasibility is poor.

Method used

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  • Tunnel forced ventilation cooling device and method
  • Tunnel forced ventilation cooling device and method
  • Tunnel forced ventilation cooling device and method

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Embodiment Construction

[0025] The present invention and other related features will be described in further detail below through embodiments in conjunction with the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0026] Such as Figure 1~3 As shown, the labels respectively indicate: 1. Tunnel partition plate, 2. Upper structure round hole, 3. Upper axial flow fan, 4. Upper grill louver, 5. Exit tunnel, 6. Entrance tunnel, 20. Lower structure round hole , 30. The lower axial flow fan, 40. The lower grille louvers.

[0027] In the existing tunnel ventilation structure, full-jet longitudinal ventilation is usually used. By simulating the left and right lines of the full-jet longitudinal ventilation tunnel, the pressure distribution map from the entrance to the exit of the tunnel can be obtained. Some simulation results are attached Figure 4~5 , attached Figure 7-8 As shown, the schematic diagram of the pressure difference distribution between the left an...

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Abstract

The invention relates to tunnels, in particular to a tunnel forced ventilation cooling method. The method is characterized by comprising the steps that a plurality of upper structural round holes and a plurality of lower structural round holes corresponding to the upper structural round holes are formed in a tunnel partition board; upper axial flow fans are arranged in the upper structural round holes, and lower axial flow fans are arranged in the lower structural round holes; airflow of an outlet tunnel flows into an inlet tunnel under the effect of the upper axial flow fans, and the airflow of the inlet tunnel flows out of an outlet tunnel under the effect of the lower axial flow fans, so that mixing of the airflow of the outlet tunnel and the airflow of the inlet tunnel is achieved. The tunnel forced ventilation cooling method is particularly suitable for the engineering with the long tunnel ventilation section, the large traffic volume and the high tunnel opening temperature. A device comprises the tunnel partition board, the axial flow fans, the structural round holes, grating shutters and the like. The device has the advantages that the temperature of tunnel exits is effectively reduced; the peripheral heat environment of the tunnel exits is obviously improved; normal passing and work of a driver, passengers and tunnel overhauling personnel are ensured; and in addition, construction is easy, project investment can be effectively reduced, the higher practicability is achieved, and the method and device can be popularized in a large-scale manner.

Description

technical field [0001] The invention relates to tunnels, in particular to a tunnel forced ventilation cooling device and method, especially suitable for projects with long tunnel ventilation sections, large traffic volume and high temperature at the entrance of the tunnel. Background technique [0002] In a tunnel with cars as the main traffic function, while the tunnel and the ground are exchanging heat, the heat dissipation of cars and lighting fixtures and other equipment will heat up the air in the tunnel. Therefore, the air temperature in the tunnel is not only related to the surrounding In addition, it is also related to factors such as tunnel length, traffic volume, tunnel ventilation mode, and wind speed. Generally, the traffic volume of highway tunnels is small and the passing speed of cars is fast. The temperature in the tunnel is mainly controlled by the formation temperature, and the temperature changes little, which will not affect the normal operation of the tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00E21F3/00
CPCE21F1/003E21F3/00
Inventor 施孝增
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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