Air ducts can be mounted in several ways. They are mounted in vertical and horizontal positions. It can be installed in an inclined plane, but this does not happen often. Most often they are attached to a wall or ceiling using special mounts. How the duct will be installed depends on the parameters of the main channel.
Duct fixation methods
Fasteners are selected depending on the cross section of the hole and the place where it is necessary to fasten.
Types of fasteners:
- corner bracket. Parts of the duct are fixed with a bracket using screws and screws;
- z-shaped holder. Apply for rectangular sections. Fastened to each other with screws and screws;
- profile with studs. To ensure sound insulation, a rubber profile is acceptable;
- fastening with punched tape. Best for fixing the air exchanger in the form of a circle. To make such fasteners, you need to make a loop and attach it to the bolt where the ventilation elements have connections. Among the advantages of this method of fastening, a relatively low cost can be distinguished. The disadvantage is that the type of mount allows vibration due to loose fixation;
- The clamp is ideal as an addition to fixing with punched tape. It helps reduce noise. Apply only to pipes that have a diameter of less than 20 cm;
- clamps are used in addition with a hairpin;
- fastenings with anchors. To perform such fasteners, it is necessary to make a hole and attach it with a hairpin;
- traverses with hairpins. The method is suitable for fastening pipes in which rectangular sections and large dimensions. The air exchanger rests on a traverse in this type of fastening;
- a metal beam with a clamp and a pin that is mounted on it.
Mounting methods for horizontal ducts
If the installation is carried out on brick walls, or reinforced concrete surfaces, then fastening is done by brackets in the form of a corner. They are inserted into the wall with the help of linings. The part of the bracket that protrudes and has an opening is used to suspend the air exchanger. The embedment length varies depending on the size of the channel.
Methods of fastening air exchangers vertically
1 - places where welding was performed, 2 - frame, 3 - corners
First of all, they mark out places that are intended for fasteners. The next step is to install the details. The location of the installation, let down the elements of the air exchanger. Next, attach the bracket, lift, console, system of blocks to the outer wall. The design with braces is assembled using single parts. An umbrella is installed and a part of the duct that has already been assembled is lifted. The structure should be leveled with stretch marks and fixed in a suitable position. The vertical duct is lengthened with:
- lower building construction;
- upper lengthening of the air channel;
- use the extrusion method.
When there is a need to increase the duct on the wall from the outside, the first technology is used. To do this, use a winch, with a cable, which is lowered into the shaft or along the wall. Mounting is carried out using lifting mechanisms. Next, the air exchanger is mounted in stages.The link rises to the junction and fastens. The remaining elements of the ventilation structure are mounted in order of priority. At the end of installation, the winch is removed, and the remaining parts with an umbrella are strengthened.
When the design slightly exceeds the weight for which the mechanisms are designed, the following method is used. All the necessary blocks are assembled, and large-sized elements are combined with the upper building. Initially, all parts are fixed to the supports separately, then the next part is installed in the place indicated in the project. And from it the winch rope is lowered to the first element.
Using a winch, the cable is stretched, and the fasteners are removed from the first structural element and transferred to the next. There it is fixed with supports and the lifting assembly is removed. Such actions are carried out until the required level of building is reached.
The extrusion method is used to conduct vertical air exchangers in hard-to-reach places. Initially, they put 2 winches with blocks, screw fasteners into the walls. Part of the structure is assembled from elements, and the plate is secured to the bottom flange with eyes. They are needed in order to stretch the cables through them. The assembled air exchanger rises until the upper flange peeks out over the building. Then elements with an umbrella are attached, they are then connected by cables to the roof of the building.
Installation of rectangular air exchangers
- Fragments of fasteners and lifting mechanisms, put up for work.
- The duct in parts rises and fastens in the place where it is needed.
- To mount horizontally, use traverses. Vertical - capture.
- The contacting elements are connected at the joints, while you need to make a mount for the rails on the upper shaped tires.
- In hard-to-reach places they use compound slats.
