A heat recovery air conditioning unit suitable for temperature and humidity independent control system and its control method

Abstract

The invention relates to a heat recovery air conditioning unit suitable for an independent temperature and humidity control system and a control method of the heat recovery air conditioning unit and belongs to the technical field of heating, ventilating and air conditioning. The heat recovery air conditioning unit is mainly composed of two draught fans, an air valve, a heat exchanger, a primary filter, a heat recovery device, an air conditioning cabinet and the like. The components form an exhaust channel, an air return channel and a fresh air channel. The first draught fan is used for exhaust. The second draught fan is used for air return. In different seasons, the heat recovery air conditioning unit can be controlled in three different work manners. By the adoption of the heat recovery air conditioning unit suitable for the independent temperature and humidity control system and the control method of the heat recovery air conditioning unit, the air exhaust heat recovery technology and the independent temperature and humidity control technology are organically combined and blended into one air conditioning device, so that the whole system has the beneficial effects that the high control precision and a remarkable energy-saving effect generated due to omitting of a reheating process of the independent temperature and humidity control system are achieved, and the energy-saving effect is improved by recovering heat in exhausted air.

Description

technical field [0001] The invention belongs to the technical field of heating, ventilating and air conditioning, and relates to a heat recovery air conditioning unit suitable for an independent temperature and humidity control system and a control method thereof. Background technique [0002] HVAC systems are widely used in various fields, and the energy consumption of HVAC systems generally accounts for 30%-50% of the total energy consumption of the entire building. In 2015, Premier Li’s government work report put energy conservation and emission reduction in a very important position, emphasizing that “we must win the battle of energy conservation, emission reduction and environmental governance”. In this context, it is of obvious significance to discuss energy conservation measures for air conditioning systems. [0003] There are many factors affecting the energy consumption of air-conditioning systems, and research on energy-saving measures for air-conditioning systems ...

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Problems solved by technology

[0006] The document "Application of Dual Cooling Source Temperature and Humidity Independent Control System in Electronic Cleaning Workshop" makes a detailed analysis of the cold source selection of the temperature and humidity independent control system. At present, the terminal application form of the temperature and humidity independent control system is the return air treatment equipment system + fresh air treatment equipment system, the two systems are independent equipment systems, the engineering applicability is not strong enough, it is necessary to further discuss it

[0007] Exhaust air heat recovery technology and temperature and humidity independent control system technology are both effective energy-saving technologies, but both have limited application forms and need to be further expanded. How to effectively apply the two energy-saving technologies to the same system at the same time is also worthy of research and exploration

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