A method for regulating indoor temperature and a dual temperature control valve

Abstract

The invention relates to an indoor temperature adjustment method and a dual temperature control valve applying the method, in particular to an indoor temperature cascade adjustment method of an air conditioning system in which the indoor air is cooled and dehumidified by cold water in summer and heated by hot water in winter, and a method for applying the method. Dual temperature control valve. The indoor temperature cascade regulation system in which two regulators work in series, introduces the supply air temperature or the return water temperature as a secondary variable to stabilize the indoor temperature of the main variable. In summer, when cooling and dehumidification are required at the same time, the secondary variable has a maximum limit. When the indoor temperature is close to or equal to the given value, the regulating valve is closed, which can satisfy the indoor temperature, take into account the indoor humidity, save the cooling capacity of cold water, ensure the comfort of the indoor environment, and at the same time reduce the water flow and reduce the superfluous Adjusting the amount, shortening the transition time, and improving the dynamic characteristics of the process, especially the ability to resist secondary disturbances such as changes in water temperature and water pressure can be greatly enhanced, so as to further improve the quality of system regulation, save water pump power consumption, and improve the efficiency of the host.

Description

technical field [0001] The present invention relates to an indoor temperature adjustment method and a dual temperature control valve using the method, in particular to an indoor temperature cascade adjustment method for an air-conditioning system in which indoor air is cooled and dehumidified by cold water in summer and heated by hot water in winter, and the method is applied. Dual temperature control valves. Background technique [0002] Indoor air is cooled and dehumidified by cold water in summer and heated by hot water in winter. The indoor temperature adjustment of the air conditioning system often adopts a simple single-loop adjustment system, that is, the output signal controls the regulating valve according to the deviation between the indoor temperature and the given value to achieve indoor temperature. Regulation, but the regulation quality of the indoor temperature single-loop regulation system is not good, the adaptability to the regulation object and load change...

AI Technical Summary

Problems solved by technology

[0009] The first technical problem to be solved in the present invention is: to overcome the existing indoor temperature cascade adjustment method in summer through cold water cooling and dehumidification, when the indoor heat load is low but the humidity load is not low, that is, the heat and humidity are relatively small, resulting in Indoor relative humidity is relatively high, which affects the comfort of the indoor environment. Provide an indoor temperature adjustment method that can take into account cooling and dehumidification in summer and fully reduce the power consumption of water pumps in winter.

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