Ventilation cabinet is not a single equipment, the external environment changes will affect the performance of the ventilation cabinet. At the same time, ventilation cabinet and the control system will influence the environment around him, when you in the choice of ventilation cabinet: first of all, we must taking into account the factors of the whole system, such as: laboratory space, building ventilation control system, exhaust pipe arrangement and ventilation cabinet display and so on, secondly: you need to determine what you need is what kind of ventilation cabinet, in the selection, Xi'an Huanya teach you can be measured according to the following factors:
The 1 part of otc:
There are three styles: the standard type, the low type, the floor type.
Whether the surface wind speed of the ventilation cabinet meets the requirements of the international standard for safety wind speed: 0.5m/s (International Standard: only the surface wind speed can reach the 0.5m/s can effectively capture the harmful gas in the cabinet).
The opening height of the ventilation cabinet is suitable to meet the needs of the operating space.
Ventilation control system: constant air volume, variable air volume or adaptive control system.
Lining board material: PP, glass fiber or polyethylene resin, etc..
Regulate the door of the raw material whether the use of safety glass, its design is in compliance with the human body mechanics, so that the operator pull.
2 mesa section:
Is the use of the safety of the plate design, so as to facilitate the user to clean the table and to prevent the leakage of toxic liquid.
Mesa material is in compliance with the requirements of your experiment to resist the corresponding erosion and high temperature.
Whether the installation of a cup slot or sink, and the location of the installation is reasonable.
Whether the design of the air outlet is reasonable.
3 bottom cabinet part:
Whether the material is solid and durable, whether it is fire resistant materials, whether it can resist the erosion of the laboratory's acid-base environment.
Whether the power supply is reasonable and safe.
Whether it is convenient for maintenance of water, electricity and gas system.
Do you need to design the bottom tank, so that you can place volatile drugs.
After you have chosen the type, style and size of the ventilation cabinet, you can determine what you need according to the following conditions.
Water source: distilled water, pure water or reverse osmosis water, etc..
Air source: nitrogen, oxygen, or air, etc..
The choice of electrical system should be considered: model, voltage size, anti riot, durability, etc..
For beauty, do you need a cover plate.