Overview

The total heat recovery of fresh air system is a kind of efficient air exchange system, which can realize the effective recovery and utilization of energy while ensuring the indoor air quality. In this paper, the principle of total heat recovery of fresh air system is introduced in detail, including its core components, working process and key technical features.
Core components
The total heat recovery of fresh air system is mainly composed of the following core components:
1. Air supply port and return port: The air supply port is responsible for sending outdoor fresh air into the room, and the return air port recyles indoor dirty air into the system.
2. Filtration system: It is used to filter the air entering the room and remove harmful substances such as particles, bacteria and viruses.
3. Heat recovery device: It is the core part of the fresh air system, and the heat exchange between indoor and outdoor air is realized through the heat exchanger.
4. Control and drive system: responsible for the control and drive of the entire system, including the operation of fans, valves and other equipment.

The working process

The working process of the total heat recovery of the fresh air system mainly includes the following steps:
1. Air supply: The system sends outdoor fresh air into the room through the air supply port. In this process, the filtration system filters the air to remove harmful substances.
2. Return air: indoor dirty air is sucked into the system through the return air outlet.
3. Heat exchange: The heat exchanger in the heat recovery device carries out heat exchange between the supply air and the return air. In this process, the heat in the supply air is recovered by the heat exchanger, and the heat is exchanged with the return air, thus achieving the effective use of energy.
4. Exhaust air: The return air after heat exchange is discharged out of the system and into the atmosphere.
5. Control and adjustment: The control and drive system automatically adjusts the air supply volume, return air volume and heat exchange efficiency according to indoor and outdoor air quality, temperature and other factors to maintain indoor air quality and comfort.

Key technical features

Total heat recovery of fresh air system has the following key technical characteristics:
1. High efficiency and energy saving: Heat exchange between indoor and outdoor air is achieved through the heat exchanger, reducing energy loss and improving energy utilization efficiency.
2. Air purification: Equipped with efficient filtration system, which can remove harmful substances such as particles, bacteria and viruses in the air to ensure indoor air quality.
3. Intelligent control: with intelligent control and adjustment function, it can automatically adjust system parameters according to indoor and outdoor environment to maintain indoor comfort.
4. Silent operation: low noise design and high-quality materials are used to ensure that the system has low noise during operation and will not affect the indoor environment and residents' lives.
5. Easy maintenance: compact system structure, reasonable layout, easy maintenance and maintenance. At the same time, the components are made of high-quality materials, with a long service life.
Summary
Total heat recovery of fresh air system is a kind of air exchange system with high efficiency, energy saving and environmental protection. It realizes the efficient exchange of indoor and outdoor air and the effective recovery and utilization of energy through the coordination of core components such as air supply port, return air port, filtration system, heat recovery device and control and drive system. It has the key technical features of high efficiency, energy saving, air purification, intelligent control, quiet operation and easy maintenance. In the future, the total heat recovery of ERV will play an increasingly important role in the fields of building energy conservation and environmental protection.