1, the use of pneumatic skills and the importance of research and development
With the development of science and technology, automatic control technology has been widely used in industrial and agricultural production and national defense construction. Complete automation of the skills of the means, in the current first two: Electrical (Electronic) control and fluid power control. Three types of fluid power control:
(1) hydraulic control, the operating fluid is primarily mineral oil.
(2) air pressure is controlled, the operating medium is compressed air, and gas and steam.
(3) the jet is a skill, and the working medium is a gas and liquid, which is used in the production process of a number of multiple pipelines.
Pneumatic servo control is a skill to complete the energy transfer, conversion, distribution and control of the gas. Pneumatic system due to its energy saving, no pollution, simple structure, low price, high speed, high efficiency, reliable operation, long service life, habit of temperature wide scale, operating medium has fire prevention and explosion prevention, anti electromagnetic interference and so on a series of strengths and obtained the rapid development. Numerous reports indicate that pneumatic skill is complete modern transmission and control of key skills, the development level and speed directly affects the quality and quantity of mechanical and electrical products, selection of gas dynamic skill level has become a measure of an important symbol of a country.
According to the material, the current pneumatic control equipment in the automation of a very important position, has been widely used in various occupations, is summarized as follows:
(1) the vast majority of the production processes of the pipe production process are usually selected for air pressure control. Such as: petroleum processing, gas processing, chemical, fertilizer, non-ferrous metal smelting and food industry, etc..
(2) in the light industry, electrical and pneumatic control devices are generally flat. In China has been widely used in textile machinery, paper and leather and other light industry.
(3) in the transport of traffic, the train's brakes, goods, packing and loading and unloading, storage, and the opening and closing of the vehicle doors and windows.
(4) widely used in the aviation industry. Because the electronic equipment in the absence of cooling equipment is very difficult to work at 300 degrees Celsius to 500 degrees Celsius, so a large number of modern aircraft use pneumatic equipment. Together, the rockets and missiles also widely used pneumatic equipment.
Mostly pneumatic automatic equipment of torpedo (5), due to the compressed air as a driving force, small volume, light weight, even more than with the same energy battery size is also small, the weight is lighter.
(6) there is a wide range of use in biological engineering, medical treatment, and atomic energy.
(7) widely used in the field of machinery industry. |
