Temperature regulating system and method for urban railroad transportation station

Abstract

The invention discloses a temperature regulating system and a temperature regulating method for an urban railroad transportation station, wherein a PID (proportion integration differentiation) controller is connected with a temperature detector and a water valve controller through a hard wire IO (input-output) module, the IO module collects the temperature detection value and the opening degree value of a water valve, the valve opening degree setting value of the PID controller is input into the water valve controller, the control on the opening degree of the water valve is realized, meanwhile, the communication module is connected with a frequency converter of a fan, the frequency feedback value of the frequency converter is collected and the frequency setting value calculated by the PID controller is sent, and the control on the frequency converter of the fan is realized. The mode of main and auxiliary two-stage regulation and multi-point measurement and multi-point control is utilized, and the regulation precision and the applicability are improved. Meanwhile, the regulation is realized in a way of aiming at different conditions by using the characteristic of small static error of the PID and the respective advantages of step type regulating blocks, and the system regulation speed is accelerated; finally, hardware and software are utilized for integrating the components into the system, the installation is convenient, the operation is simple, and the practicability is enhanced.

Description

technical field [0001] The invention relates to a temperature regulation system and method for urban rail transit stations, which can be widely used in the HVAC system of urban rail transit underground stations, and can also be extended and applied in large-scale building systems. The system framework acts on air conditioning units, Air-conditioning group control and other equipment realize the temperature adjustment function of the underground station of rail transit. Background technique [0002] The rapid development of urban rail transit makes passengers have higher and higher requirements for the comfort of the station environment, and the temperature in the station is an important indicator to measure its comfort. [0003] In the prior art, the temperature adjustment in the station of urban rail transit mostly adopts the temperature difference adjustment of a single device in the building or manual adjustment. Although these adjustment methods have played a role in re...

AI Technical Summary

Problems solved by technology

This kind of discovery can only have a certain effect on small spaces, and the temperature adjustment of large building spaces (such as urban rail transit underground stations) has the disadvantages of delay, unpreparation, and difficulty in realization, and is not very practical in urban rail transit

Images