The wall is provided with a exhaust device, and even some manufacturers can’t stand the method of using roofing water. Finally, it is found that these measures have not been significantly helpful for the ventilation and cooling of the factory in the factory. As a result, manufacturers have tried to install water curtain walls or high -voltage sprays to add a blast fan, or hang the outer wall and the environmental air conditioning method placed on the roof to send cold winds to the workshop. Of course, the effect of this move has been significantly improved, but with the followers The cost of installation, the beauty of the overall building may be destroyed, natural lighting may be blocked, and subsequent safety hazards and frequent maintenance and maintenance. The advantages and disadvantages of various ventilation and cooling measures will be introduced in detail below and the best solution will be described.
2. Common simple ventilation methods

1. Fans of the roof
The roof wind turbine is the simplest and cheapest ventilation method, but it is basically not helpful to cool down, because when the outdoor air is 37 ° C, the indoor is generally above 37 ° C, and the personnel equipment will even reach 40 when the heat load of the personnel is large. Over ℃.
However, this move has a certain air exchange effect, especially when there is a dumper that is lighter than air in the workshop, some will rise to the roof and discharge.

However, in general, the ventilation effect of this move is still very unsatisfactory. As shown in the figure, the general flow of air in and out of the workshop. The more the bottom layer needs to be ventilated, the more ventilated. And many gases (such as CO2, etc.), and micro impurities are difficult to rise because they are heavier than air.
The power roof air machine is still so, and the powerless turbine fan and exhaust corridor are even more insufficient. It can only improve the effect in the outside world. Essence
2. Relay fan

A few factories use the relay fan to arrange the interval between the workshop, which drives the overall air circulation of the air in the workshop, so that employees feel the wind blowing. This ventilation method is not only unable to discharge the smell of workshop in the interior of the workshop, but also has no cooling effect at all. Although the effect of the fan, this move is not only of great noise, high initial investment, large power consumption, and difficult to adjust the booting. The number of platforms, so it is better to save money and electricity to save money or wall fans.
3. Wall or windows are provided with exhaust fans

If this method is sufficient, it will have a very good ventilation effect, but there is no cooling function in this way. The temperature in the workshop is basically determined by the outdoor temperature.
Third, there is a way to cool down and ventilate ventilation
1. Water curtain wall or high -pressure spray plus a negative fan method

The principle of cooling the water curtain wall is well known that the air has been wet and wet, the temperature is reduced, and the humidity will increase. The place.
However, practice has proved that most companies such as clothing, shoe, textiles, machinery, cafeteria, etc. are generally applicable. Enterprises can refer to the following standards to determine whether this principle can be applied; that is, when the humidity of the spring in the spring is large, whether the workshop production is affected. If it does not affect it, the measures to evaporate the cooling and cooling of this water are basically safe. If the workshop craft has requirements for humidity but not high, or the entire workshop only has humidity requirements for individual positions, then the humidity control device can be used to control, but at this time, the temperature drop may have some effects.
Because this measure is low and consumes less at the beginning, some companies are adopted, but their shortcomings are becoming more obvious. The brief list is as follows:
(1) Because the water curtain wall must occupy the vast majority of the window area, the general lighting will be seriously affected, which increases the cost of indoor lighting and the fatigue of employees’ work in non -natural light.
(2) Large -area paper yellow water curtain wall is installed on the wall and is generally difficult to coordinate with the outer wall, causing beauty damage, especially after one or two years of dirty surface, it is difficult to clean and cause indecent and very bad. Hygiene, so it is difficult to accept new factories or companies that pay attention to appearance image.
(3) The height of the wind and sunlight and the height of the water curtain affects the life of the wet water curtain. This will increase the cost of the future, and it will generally cause the indoor side floor or windowsill to wet water.
(4) This negative pressure ventilation method requires that the doors and windows are closed, otherwise a large amount of air will directly enter the door and window because there is no wind resistance, which will affect the overall cooling. The effect is greatly reduced.
A small number of enterprises use high -pressure spraying without water curtain walls. Although the cost is reduced in this way, it also avoids the shortcomings of the water curtain wall, but it is difficult to automatically control it, which may cause the air to become full of humidity when the outside world becomes full. The equipment and products in the workshop by air are absorbed and wet in the workshop. In addition, high -voltage spray is very easy to cause blockage, so the subsequent maintenance cost is higher.
2. The exterior wall or roof is equipped with square environmental protection air conditioners

The square environmental protection air conditioner also uses the principle of evaporation of water evaporation, but unlike the water curtain wall, its fan and water curtain are in the same device, which belongs to the positive pressure air supply. The doors and windows are required to open.
Of course, this move can also solve the problem of ventilation and cooling of tall factories. However, due to the large span of tall factories, it is not necessary to meet the requirements of the middle area on the wall, and the air tube must be connected to the roof. Based on the deficiencies of tall factories, the following are listed as follows:
(1) Safety, environmentally -friendly air conditioners installed on the outer wall generally need to make a 1.6 -meter -wide triangular bracket and fix it on the wall. This installation method is difficult to ensure long -term safety due to torque, especially regular personnel. It is inconvenient and there are hidden dangers. It is difficult for ordinary personnel or installation workers to design a completely reliable bracket according to the degree of stress of various walls. With the aging of the wind and rain, and the use of the use of the rain, with the use of the life, there have been a number of whole -machine falling accidents in the country.
(2) Environmental air -conditioning air -conditioning air supply with side air supply on the wall is limited, generally 15 meters. Of course, the increase in the exit of the fan can increase the air supply distance, but the noise and power consumption increase at the same time. Strong winds may affect personnel and craftsmanship; the air -to -air pipes greatly increase the cost and affect the use of the aesthetics and the use of workshop mechanical use. The environmental protection air conditioner installed on the roof must first solve the problem of roof load bearing and leak -proof, followed by the also need to connect the wind tube to increase costs.
(3) After calculation, the power consumption and initial installation cost of the high -large factory building can reach double the way to the water curtain wall with the cost of power consumption and initial installation.
Of course, only individual positions in the workshop cool down to cool down the workshop. It is a good choice for plug -in or roof environmental protection air conditioners.