Step:

In most industrial and commercial centers, the use of entrance doors for staff turnover and transportation of goods has led to problems in terms of opening and closing them. After 1960, with the rise in oil prices, the issue of energy saving was considered by Western countries, especially the United States, and gradually the design and construction of air curtains was completed and used in commercial and commercial industrial centers.

What is air curtain?

The basis of the air curtain is the intake air from the installation site and thrown it out of a high speed linear environment. In the opening of the entrance to an invisible curtain of air, it creates between the two spaces inside and outside

Air Curtain

The basis of the air curtain system:

The following figure shows the performance of the appliance:

Output air from the air curtain is energy due to its weight and speed, and as seen, the result is shown as a vector. The wind is similarly energized and is indicated by a vector in the opening of the door. Now, the collision of these two vectors leads to the formation of a third vector.

If the power of the air curtain is more than wind power, the third vector (airflow) tends to the outside, and vice versa. If the wind is strong, the third vector will return to the inside. Therefore, air curtain systems should be designed in such a way that they can balance the opening of the entrance door.

Air curtain applications:

In general, the use of air curtains for protection against entrance doors consists of three following modes:

·         · Wind Stopping

Air curtains are designed to prevent the penetration of natural winds and speeds of about 8 m / s.

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·          Insect Control

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·          Separation of environments

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Heated Curtains:   Air Curtain با گرمایش (Heated Air Curtain):

Air curtain systems can be equipped with heating systems with hot, steam and electric coils. It should be noted that these devices do not have to wait for heating for indoor spaces and halls, but they can create a temperature difference of up to 15 ° C.

Negative Pressure

In all respects, buildings that have air inside them for some reason, leaving less room for exhaust air, are under negative pressure. If the doors or valves are opened, the air enters the air more quickly and in the case of the fetus, the air curtain air curtain decreases. This is the case in most factories. To fix this problem and introduce the replacement air, it is possible to install a damper shutter that is equipped with a grid (to prevent the entry of insects) in the hall at its highest elevation and close to the air curtain. .

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The fresh air is created through this dampener with stagnant air above the hall and a balance of the air is created in the hall. In such a situation, the air curtain will be more efficient.

Installing air curtains:

Air curtains are inversely mounted in most cases in a horizontal position above the door and in particular cases (air throw from low to high). In the absence of space for mounting curtains above the doors, the devices can be installed vertically and in three ways:

·          Vertical simple:

In this case, the device is installed vertically and on one of the two sides of the door, and as a result, the flow of air continues at a portion of the interior space.

·          Vertical with energy boosters:

In this case, on the opposite side of the air curtain, an energy absorber is installed to reduce the air flow rate.

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·          Vertical with suction and thrust:

In some halls where the openings of the entrance doors have a wider length, the installation of the air curtain is two-way (round trip) and is recommended as follows:

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According to the above figure, each air curtain is equipped with an air entry guard, which is exactly in front of the front hatch of the air curtain. The function of this model is to create a thicker air curtain in front of the door, and the air outlet speed of this device will be less than those installed above the door. This air curtain is also equipped with heating and filter coils.

Advantages of Air Curtain:

1. Isolation of hot air inside buildings from outside cold air and thus reducing the cost of heating

2. Separate indoor air from outside hot air and thus reduce the cost of cooling production

3. Prevent the introduction of insects and micro-organisms into the house and thereby provide adequate sanitation

4. Avoid penetration of dust, smoke and pollutants into the interior

5. Avoid heat dissipation in the ovens

6. Avoid waste of refrigerating in the openings as well as freezing of their interior spaces

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7. Turning hot stagnant air over the halls and thus reducing the cost of heating production

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8. With the opening of parts of the hall through the air curtain, the release of any pollution from the process of production, dust and contaminants can be controlled. In fact, air curtain systems will complement hoods and air pollution systems..

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9. The efficiency and efficiency of the employees will be improved and will increase the quality and quantity of production.

10. Added to all of the above benefits, the air curtain creates a derby against the inputs that are not visible and will cause comfort and comfort without disturbing the staff. In addition, the goods can be easily moved. In the world today air curtains

پرده هوا ایستاده
Vertical air curtain
Vertical air curtain
پرده هوا باد گرم
Hot water Air curtain
Hot water Air curtain
پرده هوا استیل
Steel Air Curtain
Steel Air Curtain
پرده هوا هوشمند
Smart air curtains
Smart air curtains
پرده هوا تکفاز اداری تجاری
Commercial Air Curtains
Commercial Air Curtains
Variable air curtain
Variable air curtain
Variable air curtain
پرده هوا صنعتی سه فاز
Industrial air curtain
Industrial air curtain
پرده هوای کامیونی
Air curtains for trucks
Air curtains for trucks
پرده هوای گرم گازسوز صنعتی
Curtains of hot gas
Curtains of hot gas

Contact information

Address: Apt. 21 , 6TH Flr , No.15.Borj-e-hormozan Bldg , SADAF street , western SARV Ave , Sa’adat Abad, Tehran, Iran.

Phone: (+9821) 22083092 – 22091821 – 22062095 – 22072468 Zip code: 1998765995

Email: farazkavian{a}gmail.com , farazkavian1375{a}gmail.com , info{a}farazkavian.com

 

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