How is the cold dryer developed? What is the history of it?

The cold drying machine is the necessary equipment needed for the technical transformation and stop equipment import in our country. It is also an important equipment for improving the quality of production and promotion of enterprises. It is widely used in automobile, electric power, machinery, textile, chemical industry, instrumentation, electronics, metallurgy, ship, food processing, pharmacy, medical and health industry. In industry, the retrenchment of air as the second largest source of power after electricity has been recognized by the broad business community. Compressed air is widely used in machinery, electronics, metallurgy, petrochemical, rubber, chemical fiber textiles, medicine, food and so on. And squeeze the air without disposal due to water, oil, dust, containing smelly defects such as, not only for all kinds of pneumatic machinery, instruments and meters pipeline should not have the damage of formation, determination to keep factories and workers idle and yield and quality, but also directly affect the progress of the international market competition.

So much of the industry is asking for dry, compressed air, so a dry system for tightening air must be set - tightening air boring machines. On the industry at present commonly used dry method, has frozen type boring method and the method of adsorption type boring, boring machine of frozen in the prosperous country face the most widely used, because of its simple operation, low capital and maintenance. It is understood that the large key projects in China such as baosteel and jinshan petrochemical all adopt the freezing boring machine. At present, the domestic industry is cold in the use of traditional technical equipment. The technology of the entire consumption line is not high. In order to progress my product market competitiveness, start from the perspective of market, the request for its design computer controller, work in progress products precision and strong sex, in order to make himself in a strong position in the market competition. In the fifties, foreign countries applied the heating regenerative adsorption boring machine, which satisfied the request of the pneumatic instrument and other starting system.

The 60 s, no heat regenerative adsorption boring machine, due to avoiding the complex heating equipment, adsorbent and renewable, greatly reduces the capital and operating costs, thus, once appear, is prosperous country has been widely used in industry. In the late 1970s, the cost of the refrigerator was reduced, and the reliability was improved, and the application of the cold dryer was increasing. In the 1980s, the air heat exchanger and evaporator of the cold dryer in France, Britain and the United States ceased to be improved, which greatly reduced the size of the unit and further improved the performance. Today, foreign person, assorted with air compressor unit reach 30 ℅ matching rate, and air purification constituted a series.

At home, about 10 years later. S heat regenerative adsorption agent boring to start application in our country, in the late seventy s, beginning to develop without a heat regenerative adsorption boring machine, in the early eighty s, changchun start components factory consumption out of the first person, after eight months, wuxi air purification equipment factory has developed. At present our country in the field of air purification and boring application is still in its infancy, the person with the air compressor matching rate in 86 years ago was only 2 ℅, has six ℅, develop very rapidly, in 93 the national each manufacturer sales person has about 35 million yuan a year. Is due to the person who has a low cost, reliable performance, maintain the bento, precipitation of moisture at the same time also can remove the oil, yield and quality and quantity is particularly appropriate ordinary industrial demand such many adsorption than the advantages, so the consumption and use are mostly person at home and abroad.

The traditional measurement and control method, because from the measurement to the appearance of adopting the mode of imitation, the data collection speed is slow, does not have the real time, the anti-interference ability is poor. The measurement accuracy is completely dependent on the hardware characteristics. Due to the lack of software linearization disposal function, the nonlinear serious disposal function of the sensor, the non-linearity of the sensor seriously affects the measurement and control accuracy. In order to ensure safe consumption and improve consumption efficiency, it is necessary to improve the traditional measurement and control methods.

Since the advent of single chip microcomputer, its related measurement and control instruments have emerged, especially the separation of digital test technology in single chip microcomputer. The development of single chip microcomputer technology is based on its high efficiency, high precision and multi-function, which gradually replaces the traditional industrial consumption process.