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ISO industrial clean room doors and windows airtight design problems

Popularity:5 Release time:2022-05-11 09:23:02

ISO industrial clean room doors and windows gap treatment Generally speaking, most of the iso industrial clean room doors and windows have three types of structural gaps in common.

One is the combination of splicing and the installation gap between the door and the iso industrial clean room;

The second type is the lap gap between the fan and the opening fan; the third type is the installation gap of the glass or other core boards. The air leakage of the iso industrial clean room door usually mentioned is nothing more than the problem caused by the above three kinds of gaps.

Among these three kinds of structural gaps, the first and third types belong to fixed gaps, and the second type belongs to movable gaps. The properties are different and their proportions on the doors and windows of the iso industrial clean room are also different. Therefore, the air tightness measures taken by iso industrial clean room doors and windows are not exactly the same, which is also an important step in the dust-free evolution project.

A. The treatment of fixed gaps The installation gaps checked are not only relatively small in number of doors and windows in each industrial clean room, but also the combination of the opening and the opening is relatively concealed after decoration, and it is a fixed gap that is easier to seal.

The connection between the edge and the periphery of the hole should be firm. It is not only the door and window of the closed iso industrial clean room, but also the requirements of the general iso industrial clean room door space structure. During the fixing, attention should be paid to whether the fixing points around the hole and its opening are firm and stable, but for the closed iso industrial clean room doors and windows, it must also be emphasized that the gap between the chamber and the iso industrial clean room door or the hole is packed tightly, and then covered. The indoor and outdoor wall decoration layers can basically ensure the air tightness of such gaps. The second type of fixed gap is the installation gap of glass or other core boards.

A relatively small proportion of the number of gaps in an industrial clean room door is relatively small, but it is often the main part of the structural gaps in a chamber, especially for the universe, which are exposed to the atmosphere and are affected by the outdoor climate. The impact must be handled carefully. On the one hand, the installation gap of the core glass should be minimized, and on the other hand, the fortification structure should be carefully selected.

B. Handling of movable gaps How the opening fan and frame material of the iso industrial clean room door overlap is the key to the sealing design of the iso industrial clean room door. The gap at the lap joint is different from the fixed gap, because the movable fan needs to be opened and the "once and for all" sealing measures can be taken.

Compared with Zhou, the opening fan of iso industrial clean room door is larger, and the movable gap occupies a larger proportion in the total number of structural gaps of iso industrial clean room door. In addition, the working conditions of the gaps around the door of the iso industrial clean room are relatively complicated. Taking the single-leaf open iso industrial clean room door as an example, the sides along the vertical direction are small, and the side with the handle is often subjected to various In case of friction or collision, the hinged side exerts force on the bore due to the rotation of the fan, which is completely different from the other three sides.

The threshold part of the iso industrial clean room must be specially structured according to the different requirements of transportation and pedestrians. There are three sides of the gap on the four sides of the single-leaf casement iso industrial clean room door that need to be treated differently, and the middle seam of the double-leaf iso industrial clean room door is also a special structure. Therefore, the sealing treatment of movable gaps is a more prominent problem in the design of iso industrial clean room doors. The size and form of the notch where the opening fan and the frame material overlap each other are important issues that must be paid attention to when the seal design of the movable gap is small.

The four aspects of the village bureau, frame, hardware, airtight strip and its mode of action should be considered comprehensively, so that they can coordinate with each other in terms of structural failure and stress state to achieve the purpose of sealing. It should be particularly pointed out that the door leaf of the iso industrial clean room is larger and heavier than the window sash, and the force applied when the seal is pressed is much larger. The rigidity of the door leaf of the clean room should be considered in terms of hardware selection.

Gap sealing of two-swing iso industrial clean room doors The casement closed iso industrial clean room door is the most selected type of iso industrial clean room door in clean workshops. It is usually used for passage or transportation. It is very convenient for emergency evacuation in case of fire.

Generally, an elastic material with a formed section is selected as the sealing strip to be fixed and sealed at the seam. The width of the opening of the commonly used iso industrial clean room door is less than 1800 mm for the double-leaf inner iso industrial clean room door and 2100 mm or less for the double-leaf outer iso industrial clean room door; the height of the opening is probably within 2400 mm.

Airtight bar settings. In the case of frequent opening and closing of iso industrial clean room doors, except for some iso industrial clean room doors, in order to avoid the collision surface of iso industrial clean room door building during transportation of heavy equipment, etc., all airtight strips are set in iso industrial clean room. It is not allowed to set the iso industrial clean room threshold on the ground on the door of the room, or some internal iso industrial clean room doors due to workshop transportation reasons. Only the hanging type sweeping airtight strip can be installed at the bottom of the iso industrial clean room door close to the ground. Under normal circumstances , In order to make the sealing strip avoid hand molds, foot steps or car touches as much as possible, and be less affected by pedestrians and transportation, more elastic sealing strips with a small section of a few millimeters in length and width are laid in the hidden groove of the iso industrial clean room door lift. Parts, and then use the iso industrial clean room door to close and press.

The sealing strip should be laid continuously along the perimeter of the movable gap to form a closed annular sealing line after the iso industrial clean room door is closed. When the airtight strips are set at the door of the iso industrial clean room and the door leaf of the iso industrial clean room, it must be noted that the pottery has a good connection, and the small gap of the airtight strip at the door of the iso industrial clean room is minimized. .


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