The importance of regulating pneumatic valve in industrial automation < / div >

with the progress of science and technology, in the machinery manufacturing, electric power, construction, transportation, information technology, machinery and equipment production process or in the case of directly without human intervention, can according to the expected target realization of measurement, control and other information processing and process control, has gradually realize the industrial automation, the corresponding industrial automation technology has also become the main means of improving labor productivity. Among them, the pneumatic valve used to control fluid flow regulation is an important part of the industrial automation system, is essential in regulating system, known as 'hands' of the production process automation. In daily life, regulating the use of pneumatic valve is relatively common, widely used in electric power, chemical and other industrial automation systems. So for its installation and maintenance and troubleshooting is especially important, in this paper, the next will be discussed based on these aspects.
to adjust the role of pneumatic valve in industrial automation application has the following two points:
1, a stable production. Adjust the pneumatic valve as a terminal control unit in the industrial process control the stability of the whole control system is particularly important. If regulation pneumatic valve can not stabilize the implementation of the control room by instructions, may cause the system pressure, temperature and liquid level fluctuation, caused serious influence to normal production. To stable production, choose appropriate elasticity coefficient, the quality of the moving parts, pneumatic valve, pneumatic valve before the differential pressure, pneumatic valve core shape and damping coefficient and the viscous friction coefficient, the stable region to the scope of work, for it has certain guiding significance in such aspects as stable production. With some chemical plant unit high load operation and the implementation of the 30% of capacity, adjust the pneumatic valve in the ongoing internal leakage, vibration, corrosion, erosion, wear, forcing adjustment greatly shorten the use of pneumatic valve date, work reliability, causing process system, the plant production efficiency have fallen sharply, serious when may even lead to comprehensive production downtime.
2, optimization control. As the terminal devices in industrial automation control system, is essential in regulating system, adjust the pneumatic valve is used to control fluid pressure, flow, temperature, liquid level. In use, first of all, according to the process of the production process requirements rational selection type of pneumatic valve. Pay attention to the optimization of adjusting flow rate characteristics of pneumatic valve, to be able to match well with control system, pushing system control functions into full play, throttling is generally lower energy consumption. In the future on the condition of pneumatic valve control function is optimized, should fully pay attention to reduce the turbulent kinetic energy and turbulence dissipation rate, on passage vortex of energy loss serious phenomenon, must carry on the reasonable flow optimization. At the same time, pay attention to the following: as far as possible to reduce the flow loss, optimizing casing window, the phenomenon of cavitation, water hammer handle and so on, these will further strengthen to adjust the control function of the pneumatic valve, thus further to the industrial automation production efficiency increase and reduce the energy consumption to play a bigger role.
3, to reduce the maintenance and repair costs. Regulating pneumatic valve has the characteristics of wear resistance, corrosion resistance by the pneumatic valve is ceramic, with strong life, need not often maintenance and repair, thereby reducing the cost. At the same time, the reasonable choice is particularly important in the selection of regulating pneumatic valve, the correct selection can extend the life cycle, reduce maintenance costs and the cost of production.
as the world's important suppliers of pneumatic valve control, absorb the innovation in the field of pneumatic control valve, committed to the development and production of high quality pneumatic control valve, and provide customers with a full range of industrial pipeline control scheme, the products are widely used in petroleum, chemical industry, electric power, metallurgy, food, medicine, urban construction, form a complete set of machinery and other industries.
products cover electric/pneumatic regulating pneumatic valve series, self regulating pneumatic valve series, type 0 / V regulating pneumatic ball valve series, regulating butterfly series of pneumatic valve and pneumatic valve American standard series varieties, in strict accordance with the UNI/ASME/ASTM/BS/DIN/API/GB standard ten production manufacturing, size from 1/8 'to 56' ( DN3 - DN1400) , the pressure from CLASS150 to CLASS2500 ( PN16- PN420) And can provide carbon steel, alloy steel, stainless steel, super duplex stainless steel and special alloy materials, such as MONEL products use from temperature 196 ℃ to 650 ℃.