Energy-saving control method and device used for cooling tower and air-conditioning system

Abstract

The invention discloses an energy-saving control method and device used for a cooling tower and an air-conditioning system. The method comprises: detecting the wet bulb temperature of the cooling tower in the environment and the outlet water temperature of the cooling tower based on the starting or closing request of the cooling tower, calculating the difference value between the detected outlet water temperature and the wet bulb temperature, determining the relationship between the calculated difference value and the preset threshold value to obtain the corresponding determine result, adapting and adjusting the number of starting or closing water valve of the cooling tower, and / or the starting or closing form of the fan of the cooling tower, and realizing the energy-saving control of starting or closing the cooling tower. The energy-saving control method and device used for a cooling tower and the air-conditioning system can overcome the defects such as inflexible temperature regulation, low reliability, and poor energy-saving effect, and can realize the beneficial effects of flexible temperature regulation, high reliability, and good energy-saving effect.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning, and in particular relates to an energy-saving control method, device and air-conditioning system for cooling towers, in particular to a control strategy for the number of cooling towers and fan opening, and a device and an air-conditioning system based on the control strategy. Background technique [0002] The cooling tower (The cooling tower) is a device that uses water as a circulating coolant to absorb heat from a system and discharge it to the atmosphere to reduce the water temperature; its cooling is to use water and air flow to exchange heat and cold to generate steam. The heat is taken away by volatilization to achieve evaporative heat dissipation, convective heat transfer and radiation heat transfer to dissipate the waste heat generated in industry or in refrigeration and air conditioning to reduce the water temperature of the evaporative heat dissipation device to ensure the norm...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the above defects, to provide an energy-saving control method, device and air-conditioning system for cooling towers, so as to solve the problem in the prior art that energy-saving operation cannot be achieved by turning on all the fans to achieve the cooling effect of cooling water , to achieve the effect of improving the energy saving effect

Images