What is a central filter system?
These are systems used to filter various smoke and dust with a fan + filter group positioned inside or outside the working environment.

What are its types?
Installations in different ways are possible.

Smoke/dust suction and filtration with multiple suction arms
Suction from multiple bottom suction tables
Thermal cutting tables (such as plasma, laser)
Wall mounted smoke extraction units
Ambient ventilation systems (such as push-pull, layered ventilation)
Central high vacuum systems for multi-point suction

In what situations should central systems be used?
This entirely depends on users’ preferences and technical limits. In an environment where there are a large number of welders and there is a space problem, mobile units may not be preferred. Of course, when making this choice, investment and operating costs should be carefully calculated. Central systems will generally require more investment costs and a lot of piping.

What is hall ventilation?
It can be explained as filtering all kinds of smoke and volatile particles emerging in the working environment and returning them to the environment. The biggest problem in halls where welded manufacturing is carried out is that local suction systems unfortunately do not provide any benefit, especially in cases that require long welding seams. Local suction arms cannot capture welding fumes after a distance of approximately 30-40 cm. In this case, welding fumes will continue to spread into the hall. Welders protect themselves using PPE
Even if they protect themselves, other workers cannot avoid being exposed to these particles.
For this reason, it becomes necessary to use “ambient ventilation” systems in production areas. In halls where many different systems can be applied, the most effective system is the “displacement ventilation” system, but the installation and operating costs of pipe type displacement ventilation systems are quite high and moving or revising the system in the future poses great difficulties.

Different varieties are available:

1. Push Pull systems: After the ambient air absorbed by a pipeline is filtered, it is given back to the environment through the blowing pipeline located opposite the suction pipeline. It is not recommended in cases such as high thermal load (annual consumption of more than 10 tons of welding wire), ceiling height more than 8 meters, distance between pipes more than 20-25 meters.
2. Layered (displacement) ventilation: Ideal for areas where a mist-pull system cannot be installed. Suction pipes placed on the ceiling carry the dirty air to the filter unit. The cleaned air is released back into the environment at very low speeds from the ground level.
3. Filter tower: In principle, it works like a layered ventilation system. Its biggest advantage is that there is no piping. It is possible to carry it in the hall.

Why should I choose ambient ventilation?
Welding smoke quickly moves upwards due to high heat when it forms.

The smoke, which loses heat, remains suspended at a height of 2.5 – 5 meters.
The smoke, freed from heavy particles, continues its upward movement slowly.
The particles scattered downwards rise again with every air flow in the environment and are inhaled by all employees.
These particles also settle in the eye sockets, skin and scalp of employees.
Welding fumes cause very painful diseases and deaths in the long run.
If welding fumes contain carcinogenic substances (e.g. nickel compounds or chromium), the air must be exhausted or filtered and reintroduced. (Considering its impact on the environment, it is best to filter it.) Settlement of particles is important according to their size and weight. Small particles are suspended in the air by the air flow. Very small particles remain suspended in the air and if they are not absorbed, they are inhaled and cause serious health problems, even cancer.

What advantages does the Avevo ALP tower offer compared to its competitors?
Many tower systems are produced based on the displacement ventilation system. What makes ALP Tower stand out from all of them is its “patent protected” double-sided blowing – DBHVS (DualBlowHallVentilationSystem) feature.

What is DBHVS?
Thanks to DBHVS, filtered return air can be returned to the environment from different parts of the tower or mixed, depending on user selection.
Our primary preference is to reintroduce a high percentage of clean air into the environment from the lower part of the tower. However, in some special cases, users may want to completely turn off or restrict the bottom blowing. In such cases, the upper blowing can be activated.

These special cases may include:

Welding may be required in an area very close to the tower and bottom blowing may be turned off to preserve shielding gas.
It may be desired to disperse the fog cloud seen at the level above the towers. Top blowing will solve this problem.
In private settlements, air curtains can be created by selecting the blowing zones of opposite towers completely above.
Thanks to the “Collaboration of Machines” feature that will be included in our 2nd software version,