What is the technical requirements of environmental protection of pneumatic valves

environmental pneumatic pneumatic valve v gate valves are the technical requirements of environmental protection technical requirements in the environmental protection industry? Pneumatic valve is the most used type of large diameter butterfly pneumatic valve? The main reason is that large diameter butterfly pneumatic valve structure is relatively simple under the same size? The smallest butterfly pneumatic valve? Quality is the lightest. The larger the diameter pneumatic valve? Adjusting the weight and volume of pneumatic valve advantage, the more obvious? Such as' pneumatic valves? If the pneumatic valve is a butterfly? Many manufacturers can do? And if it is pneumatic ball valve? The diameter? Make is sky-high.
environmental engineer should be according to the selected pneumatic valves in the role of purification system and use cases? To put forward the corresponding technical requirements? Mainly include: reliability, rigid touch, rigor, wear resistance, corrosion turbidity he temperature tolerance, safety.
fine particulate pm10 is suspended in the air? Aerodynamic equivalent diameter particles of micron or less. The concentration of pm10 per cubic meter said the number of milligrams of particulates in the air. The state environmental protection administration issued the revised 'environmental air quality standard ( GB - Fly ash will be renamed the particulate matter? As a formal atmosphere environment quality standards.
the smaller the diameter of the particles? The deeper into the part of the respiratory tract. Microns in diameter of the particles are deposited in the upper respiratory tract? Microns in diameter can deep into the respiratory tract? Micron can % into the bronchi and alveoli.
total suspended particulate matter refers to the floorboard of the solid and liquid particles floating in the air? Their range of grain diameter is about. - Microns. Some particles because of the large particle size or color black to the naked eye can see? Such as soot. Some are too small to using electron microscope to observe. Often called the size in micron particles PM? Also known as particulate matter, or fly ash. Particulate matter ( The duration of the PM in ambient air for a very long? Are of great influence on human health and atmospheric visibility. Some particles direct emissions from sources? Such as chimney and vehicles. Others are in the ambient air of sulfur oxides, nitrogen oxides and volatile organic compounds and other compounds in the form of tiny particles interact? Their chemical and physical composition according to the location, climate, the seasons of the year varies a lot. Particulate matter usually come from without paving asphalt, cement pavement broken grinding process of motor vehicle, the material as well as by the wind kicked up dust.
particulate matter be inhaled after? Accumulates in the respiratory system? Cause many diseases. Of coarse particulate matter exposure can infringe on the respiratory system? Induced asthma. Fine particulate matter can trigger heart disease, lung disease, respiratory disease? Reduced lung function, etc. So? For the elderly, children, and coronary artery heart disease and other sensitive crowd? The risk is bigger. The other? The main cause of ambient air particulate matter, or reduce visibility? And can damage the surface building.