Electricity economizer for central air conditioner

Abstract

The invention relates to an electricity saving device for a central air-conditioner. A current signal value CSV obtained from a central air-conditioner controlling system is input to a 16-bit central processing unit MUC through a protective circuit PM2, and is transmitted to a power amplifier PD for amplification through a driving module DM; and the signal undergoing conversion by a direct conversion module DCM is amplified by the power amplifier PD and then transmitted to a protective circuit PM1. A command switch CSW transmits a command signal through an isolating circuit IM to the 16-bit central processing unit MUC, an energy-saving controller SEC transmits again the command signal to the 16-bit central processing unit MUC for processing according to the command switch CSW program, and the processed and amplified signal is then transmitted to the central air-conditioner controlling system. The invention can automatically track and control the load change of the central air-conditioner, automatically and randomly detect and adjust the rotation speed of a motor in the circulation system, reduce the temperature fluctuation of a cooling system and ensure the work of the cooling system in the optimum energy-saving state.

Description

Technical field [0001] The present invention relates to air conditioning equipment, in particular to an energy-saving power saver used for central air conditioning. Background technique [0002] The central air-conditioning cold source system design currently in use all adopts the constant flow method. This kind of cold source system is simple in design and does not require complicated automatic control technology. It only needs to set the outlet water temperature and the return water temperature. The cold source system automatically adjusts its working state according to the set outlet water temperature and return water temperature. [0003] According to the design data of the air conditioning host, there is a relatively large adjustment space between the maximum and minimum chilled water flow. In fact, when the ambient temperature or the terminal load of the air conditioner changes, the supply and return temperature, temperature difference, pressure difference and flow rate of ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the task of the present invention is to provide a central air-conditioning appliance, which adopts intelligent automatic tracking control technology, which solves the problem that the design temperature of the cold source system of the central air-conditioning is lower and the temperature of the chilled water is also reduced. , so that the energy consumption of the system is greatly increased, resulting in the problem of energy waste

Images