How much do you know about air curtain machine

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Time of issue:2021-05-20 15:41
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How much do you know about air curtain machine

Recommend

Categories:News
Author:
Origin:
Time of issue:2021-05-20 15:41
Views:

In midsummer August, the sun is like fire, and it is a good time for gatherings. I recently attended a classmate gathering. During the gathering, I asked an old classmate about his work status and replied: "I'm working in an air curtain manufacturer." "What is an air curtain?" The author blurted out. The old classmate smiled and said: "Let's tell you that, when you go to the shopping mall and the supermarket, the machine blowing air down above your head is the air curtain machine." "It turns out that it is the air curtain machine, understand." This is the first dialogue between the author and classmates about the introduction of the air curtain.

"What is a windscreen machine?" Many readers may be confused when they first heard this question. It was roughly the same as the author's above reaction, without much concept, and seemed to have seen it before. After a word, they suddenly realized it. After coming back, the author deliberately learned about the air curtain, and now I want to share it with you.

Air curtain is also called air curtain, air curtain, English name: air curtain, air door. Mainly used to install at the entrances and exits of public places with air-conditioning environment. Special high-speed motors are used to drive the tubular, centrifugal or axial-flow wind wheels and blades to produce a powerful airflow barrier, forming an invisible surface. The door curtain can effectively keep the indoor air clean, prevent the convection of hot and cold air, reduce the energy consumption of the air conditioner, extend the service life of the air conditioner, and prevent the intrusion of dust, insects, and harmful gases.

In short, the air curtain is just like our common fans, vertical tower fans, and internal air conditioner fans. It is an electric fan device, which is a kind of ventilation equipment. It focuses on compressing the gas and blowing it out at a high speed to form an isolated curtain wall. The corresponding airflow has a higher wind speed and higher noise.

It can be seen from the above that air curtains are widely used in the entrance and exit door lintels of factories, supermarkets, restaurants, pharmacies, cold storages, hotels, hospitals, airports, stations and other environments and all places where cooling/heating needs to isolate and exchange heat, for consumption Provides a comfortable environment for work, shopping and leisure for the users and users. Its main effects are:

Create a comfortable indoor environment. The motor drives the wind wheel to generate high-speed airflow, which divides the indoor and outdoor into two independent temperature zones, maintains the effect of indoor air conditioning and air purification, saves electricity, and circulates indoor air. The continuously formed air curtain door can effectively prevent the cooling/heating from escaping and save electricity. It divides the indoor and outdoor into two independent temperature areas. When the air conditioner is running for a long time, it assists in circulating the temperature to achieve the purpose of saving energy and improving the environment.Dust-proof and insect-proof effect. The high-speed airflow generated by the air curtain can form a protective door, which can effectively block the intrusion of outdoor dust and flying insects and keep the room clean. It is especially suitable for industries such as street shops, vegetable and fruit supermarkets, food, and milk powder.Anti-smoke and harmful gas effect. The air circulation system of the air curtain can make every corner of the room strongly block the pungent smell of outdoor cooking fume and harmful gases such as industrial exhaust gas and automobile exhaust gas from entering the room.

Air circulation effect. In gymnasiums, movie theaters, entertainment venues, etc., when the air conditioning energy distribution is uneven due to the large space, the air circulation system function of the air curtain can be used to achieve the indoor temperature balance.

Air curtains are classified according to the type of fans, which can be divided into 3 categories.

Tubular flow type: also known as cross flow type. It has a cylindrical shape. The airflow enters perpendicularly to the axis and exits through the blades in the opposite direction. The inlet and outlet airflow of the tubular air curtain is uniform in the larger return plane, the wind speed is stable and uniform, and the wind pressure is small. It is suitable for occasions with small isolated space. It is similar to the fan of the indoor unit of the air conditioner and is relatively quiet.

Centrifugal: The airflow enters along the axis from one end (or both ends) of the wind wheel and is discharged from the direction perpendicular to the axis. The centrifugal air curtain has concentrated air output and high pressure, which is suitable for occasions with large isolation space and high wind noise. The air supply path is similar to a whistle, and blows out from the whistle-shaped tuyere based on the Archimedes spiral principle.

Axial flow type: The airflow mainly moves along the axial direction, that is, it enters along the axial direction and flows out along the axial direction at the same time. The axial flow air curtain has a concentrated air output and a large air volume, which is suitable for occasions with low installation height and large space. The appearance principle is similar to a conventional floor swing fan, and the airflow direction is the same as the motor shaft, so it is called an axial flow type.

In the current routine use, the tubular air curtain is more suitable for commercial or household applications because of its uniform air supply, controllable noise, and low wind speed. The centrifugal air curtain has high wind pressure and high noise, and is mainly used in industrial production fields, large garages, warehouses and other environments. The axial flow type has almost no application in the field of small air volume, and can only be applied to the industrial field with large air volume.

In addition, the air curtain can be divided into non-heated air curtain and hot air curtain according to the temperature state of the air sent out. Among them, the hot air curtain can be divided into hot water heating, steam heating and electric heating according to the type of heat source.

According to the diameter of the wind wheel, it is divided into 100mm, 120mm, 150mm, 160mm and 200mm, etc., and the air volume generated is different for different sizes.

According to the length of the fuselage and the width of the door lintel, it can be divided into 900mm, 1000mm, 1200mm, 1500mm, 1800 and 2000mm series.

According to the installation height, it can be divided into 25, 30, 35, 40, 45 and 50. The corresponding installation heights are 2.5 meters, 3.0 meters, 3.5 meters, 4.0 meters, 4.5 meters and 5 meters.

In the actual consumption process, consumers should choose the air curtain according to the actual width and height of the door, please refer to the technical parameters of the air curtain. The main consideration is to install the door width and height of the air curtain. The length of the air curtain should be slightly longer than or equal to the width of the door. If the door is too wide, multiple units can be used in connection. If the width of the door is 2 meters, you can choose two air curtains with a length of 1.0 meters. If the width of the door is 2.4 meters, you can choose two air curtains with a length of 1.2 meters.

The height of the doorway where the air curtain is installed. Generally, the air curtain can blow 2.5 meters high. If the height of the doorway exceeds 3 meters, you need to choose an air curtain with increased air volume, otherwise the wind barrier cannot be met.

If the actual installation environment is different, such as close to a highway or in a windy and sandy area, an air curtain with an effective separation distance greater than the height of the door should be selected. When the height of the door is high, the remote control type should be used as much as possible.

In places with high oil smoke concentration, such as kitchens, air curtains with metal wind wheels should be used.

Based on the introduction to the principle, classification and selection of air curtains that the author brought to you, everyone understands that in the future, you can choose the most cost-effective and most suitable air curtain products according to your own specific conditions and needs.