Energy-efficient air conditioning system and method

Abstract

The invention relates to an energy-efficient air conditioning system and a method. The energy-efficient air conditioning system involves a controller and air conditioning equipment in signal connection with the controller, wherein the air conditioning equipment comprises an air conditioning unit, a cold source side water mechanism connected with the air conditioning unit, a ventilation pipe mechanism and an air return pipe mechanism; and the ventilation pipe mechanism comprises a ventilation pipe for conveying air flow to the air conditioning unit, a first valve switch arranged on the ventilation pipe and a first temperature sensor for testing the temperature in the ventilation pipe, the air return pipe mechanism comprises an air return pipe for conveying air flow to the air conditioning unit, a second valve switch arranged on the air return pipe and a second temperature sensor for testing the temperature in the air return pipe. The first temperature sensor and the second temperature sensor send signals to the controller, the controller receives the signals and enables the cold source side water mechanism and / or the first valve switch and / or the second valve switch to be opened orclosed according to the signals, and airflow output by the air conditioning equipment can be controlled within a preset refrigeration range according to actual requirements, so that energy-saving effect is achieved.

Description

technical field [0001] The invention relates to an energy-saving air-conditioning system and method. Background technique [0002] The air conditioning system is generally designed to meet the design parameters of outdoor air in winter and summer, and when the indoor load is in the most unfavorable conditions. According to data, the energy consumption of HVAC systems accounts for about 70% of the total energy consumption of buildings, and air-conditioning units account for a considerable share of this proportion. For most air-conditioning units, the system design is often based on the maximum cooling load as the air volume design basis, but due to changes in various factors such as weather conditions and personnel every day, the cooling / heating load is always changing dynamically, which can be between 5% and 60%. fluctuate within the range. Indoor residual heat and residual humidity also change frequently. If the air conditioning system is not adjusted accordingly, in the...

AI Technical Summary

Problems solved by technology

If the air conditioning system is not adjusted accordingly, in the case of constant changes in outdoor air parameters and indoor load, the indoor parameters will change or fluctuate accordingly, which cannot meet the design requirements, and waste the cooling and heat of the air conditioner.

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