Application environment of Biosafety Cabinet and recent development
As we all know, the laboratory's most important facilities in addition to the experimental platform, there is ventilation. Because the laboratory of the special environment requires the laboratory must be able to make the experiment produced toxic and harmful gases discharged, will not cause harm to human health. So the construction of ventilation facilities is particularly important.
On the ventilation facilities, the current domestic mainstream laboratory common Biosafety Cabinets and so on. Here's a brief introduction to some of the basic situation of this cabinet. This kind of cabinet is also called fume hood, detoxification cabinet. Is an indispensable part of laboratory design. In order to test the health and safety of the crowd, the laboratory should have a good ventilation. So that this can be ventilated cabinets will have to prevent the steam, gas, particles, and some of the hazards associated with human health pollutants. This type of cabinet is mainly like this: the following use of experimental side table style, above the table, the following is the cabinet. And such Biosafety Cabinet materials also have special requirements.
The material is mainly made of a variety of special materials such as steel, steel, wood and so on. And direct contact with the test sample. Usually made of epoxy resin board, physical and chemical plate, ceramic plate, stainless steel plate and other materials. This is much less than the old style of purely made of wood from the cabinet to reduce the cost of manufacturing, occupies the volume and its weight, greatly increasing the load capacity, cost-effective access to a significant increase.
The biosafety cabinet is usually installed against the wall. Most of the ventilated cabinets are automatically alerted when the exhaust volume is too small. When used by the experimenter only need to stand or sit in front of the cabinet, in the cabinet below the experimental bench on the experimental operation can be. Laboratory type of such cabinet if the characteristics of the points, then there are several: items pumping cabinets, slotted cabinets, bypass cabinets, wind-style cabinets, as well as natural ventilation cabinet.
If the way according to their exhaust points. Can be divided into such a few: the upper exhaust style, the lower exhaust style, the upper and lower at the same time exhaust style. According to the way into the wind can be divided into full-style wind-type cabinets, wind-style cabinets, variable air volume cabinet. It can be seen that the style of ventilation cabinet is very much, the choice must be carefully selected, we can find the right cabinet.
Biosafety Cabinet should pay attention to what installation
1, the Biosafety Cabinet installed as far as possible at the end of the pipeline, the shorter the better the length of the pipeline. Biosafety Cabinet exhaust channel as straight as possible, and the higher the channel the better.
2, a Biosafety Cabinet with a fan, with a single pipe connection is the best way.
3, a fan connected to the Biosafety Cabinet as little as possible.
4, the laboratory Biosafety Cabinet installed as far as possible at the end of the pipeline, the pipe length is as short as possible.
5, if you want to change the wind speed, you should configure the corresponding frequency adjustment system.
6, if you can not use a single pipe connection, only the same room can be used with the same room with each other.
7, the end of the exhaust channel should try to avoid the air duct to send air to prevent the discharge of harmful gases through the exhaust pipe and then sent to the Biosafety Cabinet.
The safety performance of Biosafety Cabinets is the need to ensure that the property is safe because the safety and accidents that have been applied in the field of safety of Biosafety Cabinets are catastrophic. In a lot of surprises, due to failure of the fume hood or temporary collapse caused by laboratory damage or injury. The safety performance of Biosafety Cabinets is a design element that needs attention.