What is a fresh air system? What is the working principle of fresh air system?

1? 3? 1? With the progress of science and technology, all kinds of new things are constantly emerging. When many people buy indoor ventilation equipment, they find that in addition to the traditional ventilator, exhaust fan and some fresh air functions, there is also a new product-fresh air system. Many people are not familiar with the fresh air system. They don't know what the fresh air system is, nor do they know its classification and principle. The following experts will introduce these issues in detail. Overview of fresh air system Fresh air system is an air conditioning device that provides fresh air. It is mainly composed of air inlet, motor, fan, filter, humidifier, air valve, air outlet and other components. Its main function is to send fresh outdoor air to the room through the fan, and replace the original dirty indoor air when the indoor air enters the indoor space, thus keeping the indoor air fresh and clean. The fresh air system is divided into three types: unidirectional flow, bidirectional flow and total heat exchanger group. The principles of the first two fresh air systems are simpler, while the total heat exchange fresh air system has an energy-saving heat exchange system with a slightly more complicated working principle and the best use effect. There are three fresh air systems, 1 and one-way fresh air system, that is, "forced air exhaust and natural air intake" system. Its working principle is to rely on the suction generated by the main engine to form indoor negative pressure, and send dirty air to the outside through the air supply pipeline. In order to balance the indoor negative pressure, relatively fresh outdoor air enters the room from the pre-installed air inlet to achieve the purpose of ventilation. One-way fresh air system occurs naturally, with few pipes and simple installation, and is generally used in houses, apartments or office places with high floors. 2. Two-way fresh air system The two-way fresh air system is a "forced air exhaust, forced air supply" system, which consists of a group of forced air supply systems and a group of forced air supply systems. Different from one-way flow, the form of air supply is changed from natural air supply to forced air supply. Fresh air enters the room through the pipes of the air supply system, and exhaust air is discharged to the outside through the pipes of the exhaust system. The flow direction of fresh air and exhaust air, and the arrangement of fresh air outlet and exhaust air outlet can be actually arranged according to specific requirements. The two-way fresh air system can filter the introduced fresh air, with good fresh air quality and more thorough ventilation effect, and can be installed and used in homes and public places. 3. Total heat exchange fresh air system The total heat exchange fresh air system is an upgrade of two-way fresh air system. The main engine is equipped with a total heat recovery system, and the inlet and outlet air can exchange energy between preheating and precooling through the heat exchanger placed in the main engine, which can retain 70% of the energy of indoor air. It is very energy-saving when used with air conditioner, even if the temperature difference is large, it will not affect the indoor temperature. The total heat exchange fresh air system is suitable for apartments, villas and offices with an area less than 1 1,000 square meters, with high fresh air quality, high efficiency and energy saving. In the installation project of central fresh air system of several villa customers in our company, the series of total heat exchange fresh air system was adopted. What is a fresh air system? Simply put, the fresh air unit is a system to ventilate rooms and improve indoor air quality. It can reasonably and effectively discharge indoor polluted air and introduce outdoor fresh air. The three types of fresh air systems introduced above are different, and the applicable building types are also different. There are many products of these three types of fresh air units on this website. You can know the price range and use types of these products online.