Laboratory Furniture Fume Hood plan design and supply - Cartmay Industrial

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ductless gas - type fume hood

Laboratory of the most energy - efficient fume hood - ductless gas - type fume hood
       We all know that the role of the fume hood in the laboratory is important, but it also has a troubled problem: that is, the fume hood of the energy consumption is very large! This is with our country in recent years to promote energy-saving emission reduction, the concept of sustainable development is in conflict with each other, the energy consumption of laboratory fume hood worthy of close attention to everyone. A common fume hood 8-10 hours a day if not 24 hours, then the hourly out of 1200-1500 cubic meters of laboratory air. Laboratory must be equipped with air-conditioning system to ensure constant temperature and humidity in the laboratory to ensure the accuracy of the experiment, but air-conditioned heating system is often easily discharged outside the pipeline system. Then the average annual loss of each fume hood is about 17,000 yuan. In addition, the efflux of the fume hood will also have a direct or indirect ecological damage. Direct destruction is due to the fact that many residential and office buildings near the laboratory are exposed to chemical fumes from fume hood ducts. Indirect reason is that the main energy source of China's power generation is coal. A US study showed that the energy consumption of laboratory fume hoods (approximately 7.5 million in the US, roughly the same as China's) is equivalent to at least 12 250 MW power plants generating power, while power plants Coal-fired power plants emit sulfur dioxide (producing acid rain) and carbon dioxide (forming the greenhouse effect). One solution is to reduce the exhaust of the fume hood. The use of this method is mainly through the VAV system (variable air volume control system), however, the installation of VAV system is very complex and expensive, and to bring energy savings through the installation to recover the cost to spend a long & Lt; / RTI & gt; Most importantly, if the experimenter does not develop good habits to pay attention to open the door height, then, VAV system will lose its role in saving energy. Another solution is to use a vented cabinet without a tube. Such fume hoods are equipped with an activated carbon filter that absorbs the chemical gases produced during the operation. After the filtration, the clean air will circulate indoors, not to the outside. It has two prominent advantages: First, do not vent the indoor air, thereby saving a lot of energy consumption; Second, do not pollute the environment. In addition, its flexibility is also very prominent, only need a power outlet, you can place it in any one location in the laboratory. Based on the outstanding characteristics of the vented cabinet, it will be the main tool for chemical operation in future chemical laboratories.
       What kind of gas-type fume hood is the safest it has a certain chemical knowledge of people know that the life of the filter depends on its adsorption of chemical species and the corresponding chemical volatilization, including the filter where Of the environment, such as temperature and humidity will have an impact. So can not be generalized that the filter life is one year, which led to a very critical issue, how to accurately determine the filter saturation time, because if the filter saturation and not timely detection or detection, it will immediately From safety to unsafe, so production-oriented enterprises must highlight the on-line monitoring system to accurately and timely manner. Therefore, in order to achieve energy-saving and at the same time to ensure the safety of purpose, net gas-type fume hood is a good choice. Moreover, the net gas-type fume hood can not only ensure the safety of experimental and experimental personnel, but also to achieve the purpose of energy-saving emission reduction, both fish and bear's paw, why not?