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Ventilation System

Ventilation System

2021-10-25

The Ventilation System (fresh air system) is an independent air treatment system composed of a supply air system and an exhaust air system. It is divided into two types: a ducting fresh air system and a ductless fresh air system. The ducting fresh air system consists of fresh air blowers and pipe fittings. The fresh air purifies the outdoor air into the room and exhausts the indoor air through duct. The ductless fresh air system consists of fresh air blowers, which also purify outdoor air into the room. Relatively speaking, the ducted fresh air system is more suitable for industrial or large-area office areas due to the large amount of work, while the ductless fresh air system is more suitable for home use because of its easy installation. After many attempts,Chun Yi  invented and manufactured the world's first heat exchange equipment that can filter air pollution, also known as a fresh air system.

 

Principle of Ventilation

The fresh air system is based on the use of special equipment on one side of a closed room to send fresh air to the room, and then discharge from the other side to the outdoors by special equipment, forming a "fresh air flow field" indoors to meet the needs of indoor fresh air ventilation. The implementation plan is to use high wind pressure and large flow fans, relying on mechanical strength to supply air from one side to the room, and from the other side to use a specially designed exhaust fan to discharge to the outside, forcing a fresh air flow field to be formed in the system. While supplying air, the air entering the room is filtered, disinfected, sterilized, oxygenated, and preheated (in winter).

 

Ventilation System composition:

Ventilation air Fan

Air Duct/Ducting

Air Outlet/Air Terminal

 

Function

First, use outdoor fresh air to renew indoor air that has been polluted due to living and living processes in order to maintain the cleanliness of indoor air to a certain minimum level.

The second function is to increase heat dissipation in the body and prevent discomfort caused by moisture in the skin. This type of ventilation can be called thermal comfort ventilation.

The third function is When the indoor air temperature is higher than the outdoor air temperature, the building components are cooled down. This type of ventilation is called cooling ventilation of the building.

 

Advantage

1) You can enjoy the fresh air of nature without opening the window;

2) Avoid "air conditioning disease";

3) Avoid mildew on indoor furniture and clothing;

4) Eliminate long-term slow-release harmful gases after interior decoration, which is beneficial to human health;

5) Recycling indoor temperature and humidity, saving heating costs;

6) Effectively eliminate various bacteria and viruses indoors;

7) Ultra-quiet;

8) Reduce indoor carbon dioxide concentration;

9) Dustproof;

Open windows for ventilation

Opening windows will cause turbulence in airflow, which may bring peculiar smells from bathrooms and kitchens into the living room and bedroom; toilet shafts may produce peculiar smell "backflow" phenomenon; outdoor air entrains a large amount of outdoor dust, which affects indoor cleanliness and hygiene; heating will cause a lot of energy waste, Waste of electricity.

Exhaust fan ventilation

The ventilating fan can continuously remove indoor odors, and cannot fully meet the replacement needs of indoor fresh air; it is cheap, and the maintenance cost is very small; it can continuously ventilate for 24 hours; it is noisy; when there is no fresh air introduction, the exhaust resistance increases, Ineffective. The exhaust fan has a large air volume and a limited range of action.

Air conditioner with fresh air: The wall-mounted air conditioner accepts air from the air conditioner itself and the external unit. A fresh air system is formed between the room and the outside unit of the air conditioner. For central air conditioners with fresh air, the fresh air is normally circulated indoors. The disadvantage is Bacteria multiply at the air outlet, especially in winter, the temperature of the air-conditioning outlet is a hotbed of bacteria; it cannot fully achieve the purpose of full exchange of indoor and outdoor air, and the price is higher than ordinary air-conditioning, but the comprehensive consideration is more than the fresh air system plus air-conditioning. Cheap.

Air purification

A. Air purifier: It can absorb dust and other particles in the air, eliminate harmful molecules, and cannot update oxygen.

B. Air freshener: After being sprayed indoors, it mixes with the original dirty air, which is equivalent to putting a "camouflage" on the room.

C. Air dialysis system: The air dialysis system has low noise during operation. The exhaust fan is used to exhaust the dirty air in the room, and then the outdoor air is introduced into the room through the air supply duct by the induced draft fan. The air is purified by high-temperature sterilization, filter filtration and other technologies. And deliver the purified air to each room.

D. Air disinfectant: It can kill bacteria and microorganisms in the air, but it cannot renew oxygen and discharge carbon dioxide, and cannot cure indoor air pollution.

           


           

           
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