Platform door with noise reduction and ventilation functions

Abstract

The invention discloses a platform door with noise reduction and ventilation functions, and relates to the field of platform door systems. The platform door comprises a base, the base is fixed to an upper cross beam of a platform door top box, a noise reduction air valve is fixedly mounted on the base, and the noise reduction air valve is connected with a civil engineering beam through an upper fixing plate and an anchor bolt. A fixing plate is arranged on the upper part of the noise reduction air valve, a mounting hole is formed in the fixing plate, and the mounting hole is connected with the civil engineering beam through the anchor bolt. The noise reduction air valve is mounted on the platform door, opening and closing of the air valve can be adjusted according to outdoor conditions, and then the communication or isolation function of a rail-mounted area and a platform public area is achieved. When the noise reduction air valve is opened and train piston air is used for ventilation of a station public area, multi-row noise reduction valve plates form an impedance composite silencer, noise generated by a train can be effectively controlled, when the noise reduction air valve is closed, the rail-mounted area and the station public area can be completely isolated, the influence of the piston air on the station public area is controlled, and compared with single-row valve plates, the multi-row noise reduction valve plates has better sealing performance.

Description

technical field [0001] The disclosure of the present invention relates to the field of platform door systems, in particular to a platform door with the function of noise reduction and ventilation. Background technique [0002] my country has a vast territory, and all provinces and cities from south to north currently have subways in operation. For areas where the ventilation season is long and the public areas of the stations need to be equipped with air conditioners in summer or to prevent the temperature of the stations from being too low in winter and need to isolate the intervals and public areas, ventilation and closed areas should be set up. Convertible platform doors have great energy-saving implications. [0003] When the ventilation switching device adopts ordinary air valves, the blades not only do not have the function of noise reduction, but when the air valve is open, when the piston wind of the train passes through the blades, secondary noise will be generated, ...

AI Technical Summary

Problems solved by technology

[0003] When the ventilation conversion device adopts ordinary air valves, the blades not only do not have the function of noise reduction, but when the air valve is open, when the train piston wind passes through the blades, secondary noise will be generated, which will be superimposed with the noise of the train and then transmitted to the public area of ​​the station, affecting Passenger waiting experience

To reduce train noise, the method of installing sound-absorbing panels on the wall of the platform track area can be adopted. However, due to the influence of a large number of billboards, section cables, catenary and other equipment and pipelines, the area available for installing sound-absorbing panels is limited. Under the influence of wind impact and corrosion of fixed support parts, the risk of falling is high, so there are currently no other effective measures to reduce noise except for shock and noise reduction of trains and ballast beds

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