A Control System Applied to the Ventilation Regulating Air Valve of Subway Station
A ventilation adjustment and control system technology, applied in the direction of valve operation/release device, valve details, valve device, etc., can solve the problems of unstable air valve angle control, fault judgment safety switch, and inability to ensure the operation of electronic devices, etc., to achieve good effect of controlling the situation
Active Publication Date: 2021-11-16
ZHEJIANG ZHONGXIN SANYUAN FAN CO LTD
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Problems solved by technology
Because the damper controller has a temperature resistance requirement of 250° under accident conditions, it cannot ensure the operation of electronic devices in accident conditions, so it cannot stably realize the control of damper angle, fault judgment and safety under accident conditions switch
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Embodiment Construction
[0017] as attached figure 1 As shown, a control system applied to the ventilation regulating damper of subway stations is characterized in that the control system consists of three blocks, namely the damper actuator (installed on the damper valve body), the damper control (installed on the wall or column near the air valve installation position for people to operate) and environmental control cabinet (installed in the environmental equipment control room of the station); the air valve controller is connected with the air valve actuator and the environmental equipment control cabinet respectively The environmental equipment control cabinet controls the opening and closing of the air valve through the air valve controller, and reads the real-time angle information of the air valve through the air valve controller; The valve control target angle is compared with the real-time angle of the air valve, and according to the magnitude of the two angle values, the air valve opening or ...
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The invention discloses a control system applied to a ventilation regulating damper in a subway station. The control system is composed of three blocks, which are respectively a damper actuator at the damper end, a damper controller for operating the damper on site, and a damper controller. The environmental equipment control cabinet of the control center; the damper controller is connected with the damper actuator and the environmental equipment control cabinet respectively, and the environmental equipment control cabinet controls the opening and closing of the damper through the damper controller, and the air valve The controller reads the real-time angle information of the air valve; the environmental equipment control cabinet establishes the air valve control target angle according to air conditioning or fire protection requirements, compares it with the real-time angle of the air valve, and according to the size of the two angle values, directs the air valve The controller outputs damper open or close commands. In the present invention, the analog signal comparison and calculation function is implemented in the upper-level environmental equipment control cabinet, and converted into reliable digital quantity switch signals in the environmental equipment control cabinet and output to the damper controller.
Description
technical field [0001] The invention relates to a damper control system, in particular to a control system applied to a ventilation regulating damper in subway stations. Background technique [0002] At present, in order to realize the energy-saving operation of subway ventilation and air conditioning, it is necessary to adjust the ventilation volume in the ventilation system according to different air conditioning conditions, so it is necessary to adjust and control the angle of the air valve in the ventilation channel, and at the same time ensure In case of fire (such as fire), the damper can perform full open / full close commands. The existing control scheme is as follows: the environmental equipment control cabinet sends a 4-20mA current signal to the damper controller, and the control circuit in the damper controller outputs the damper control signal after calculation. Because the damper controller has a temperature resistance requirement of 250° under accident conditio...
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IPC IPC(8): F16K31/02F16K31/04F16K37/00F24F11/63F24F11/52F24F11/33
CPCF16K31/02F16K31/046F16K37/0083F24F11/33F24F11/52F24F11/63
Inventor 周胜辉高艋艺
Owner ZHEJIANG ZHONGXIN SANYUAN FAN CO LTD