Natural gas is a kind of fossil fuel in gas state whose major component is alkane. Different from other fuel, it generates no waste water or residue in combustion. Comparing with coal gas, it’s obviously a sort of clean energy source, since that it produces few harmful materials but only…
Fresh air system is an independent air processing system consist of an air supply system and an exhaust system. The systems can be distinguished as system with pipelines and system without pipelines. The fresh air system with pipelines is consist of fresh air ventilator and pipe fittings while non-pipeline type…
With the acceleration of urbanization, intellectualization of public facilities has been the symbol of “smart city”. As public places in a city, public toilets need to be kept clean with fresh air and neat ambient environment to show the good image of the city. Public toilet is an indispensable part…
With the development of petrochemical industry, the categories and applications of inflammable, explosive and toxic gases are also increasing. Once leakage of these gases occurs during production, transport or using, it will cause poisoning, fire or even explosive accident, which will severely prejudice the safety of people’s health and possession….
As a converter to convert volume fraction of a certain gas into corresponding electrical signal, the Semiconductor Gas Sensors are mainly applied for civil use. It is for that these sensors are relatively cheap while their performance can meet the requirements of home alarms. To be specific, gas sensors are…
According to the Analysis Report of Market Research and Investment Forecast of Cold-Chain Logistic Industry in 2013 – 2017, in China, the loss ratio of agricultural products astonishingly reaches up to 25~30% per year in logistic processes including picking, transportation and storage, and this is the key factor for the…
