Temperature control device controlling opening degree limit of water valve according to supply air volume for fan coil

Abstract

The invention relates to a temperature control device controlling the opening degree limit of a water valve according to the supply air volume for a fan coil. The temperature control device comprises the fan coil, the electric water valve, a controller and a control panel, and a fan is arranged in the fan coil. The temperature control device is characterized in that a supply air volume sensor is arranged in an air supply channel of the fan coil, and the controller is provided with a signal processing unit, a feedback information processing unit, a plurality of analog signal input ends, a plurality of analog signal output ends, a plurality of digital signal input ends and a plurality of digital signal output ends; an air volume signal output end of the supply air volume sensor is connected to an air volume feedback signal input end of the controller, and an opening degree feedback signal output end of the electric water valve is connected to an opening degree feedback signal input end of the controller; the controller contrasts supply air volume feedback signals of the supply air volume sensor and the set supply air volume signals, and therefore a temperature control structure controlling the opening degree limit of the water valve according to the supply air volume for the fan coil is formed. The temperature control device has the beneficial effects that the efficiency is high, the time and the labor are saved, the accuracy is high, and the energy conservation performance and the comfort level of an air-conditioning system are guaranteed.

Description

technical field [0001] The invention relates to a temperature control device, in particular to a fan coil temperature control device for controlling the opening limit of a water valve according to the air supply volume. It belongs to the technical field of heating, ventilating and air conditioning. Background technique [0002] The fan coil unit is the terminal product of the central air conditioner. It is composed of heat exchangers, water pipes, filters, fans, water trays, exhaust valves and brackets. Its working principle is to continuously recirculate the air in the room where the unit is located. The air is cooled (heated) after passing through the cold water (hot water) coil to keep the room temperature constant. [0003] With the continuous development of fan coil technology, the field of application has also become larger, and now it is mainly used in offices, hospitals, scientific research institutions and other places. The fan coil unit mainly relies on the force...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the fan coil unit in the prior art needs to manually adjust the air volume and water volume, which is low in efficiency, time-consuming and labor-intensive, prone to human errors and low in precision.

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