The difference between a subway security door and a screen door

 The difference between a subway security door and a screen door

The main difference between subway security doors and screen doors is their installation location, structure, and function:

1. Installation location: The safety door and the screen door are installed on the underground platform and the elevated station respectively. A screen door is a top-down, fully enclosed glass partition wall that runs along the entire platform edge of the station to separate the platform area from the train area. The safety door is divided into a full-height security door and a half-height security door, the full-height security door is generally used for underground platforms, and the half-height security door is used for ground platforms or elevated platforms.

2. Structure: The screen door is a fully enclosed glass partition wall, which has good air tightness, and can isolate the exchange of cold and hot air between the airflow in the tunnel and the air-conditioning environment in the station. The upper part of the full-height security door is not closed, and the lower part of the door body can be provided with vents as needed, and the louver hollow designed above and below the door body has the effect of ventilation. The half-height safety gate is generally 1.2-1.7m in height and is installed at the edge of the platform to separate the platform area from the track area.

3. Function: Both the safety door and the screen door have the function to ensure the safety of passengers. In addition to ensuring the safety of passengers, the screen door can also isolate the exchange of cold and hot air between the airflow in the tunnel and the air-conditioning environment in the station, so as to achieve the purpose of energy saving. In addition to ensuring passenger safety and the aesthetics of the door, the full-height security door can also achieve the effect of ventilation and energy saving. Half-height safety doors are mainly used to improve safety, but they cannot completely insulate passengers from the effects of wind and noise.