Oven gas valve positioner advantages of traditional positioner

Because the petrochemical industry production is flammable, explosive, toxic, corrosive, poor working conditions and other characteristics, so it is a high risk industry, once accident occurs, often causing very serious casualties and property losses. Therefore, high risk of forced petrochemical enterprises to increase automation and intelligent control equipment investment, production process control requires a lot of control Oven Gas Valve and its diagnosis and maintenance, so as to realize the efficient management of process safety enhancement, thus the risk as much as possible, down to the lowest. Intelligent Oven gas valve positioner control Oven gas valve as the main component, the continuous development and improvement of diagnostic technology, intelligent Oven gas valve positioner diagnosis technology plays a more and more important role in the diagnosis, control and detection of the petroleum chemical industry production process.
First, intelligent Oven gas valve positioner in traditional Oven gas valve positioner
The Oven gas valve positioner is composed of 1 traditional regulator or output safety gate sent 4 ~ 20mADC current input coil, the coil is located in the moving iron magnetization and work. Because the moving iron in permanent magnet field generated by the magnetic field, therefore, the two interaction of moving iron to produce deflection torque, the fulcrum as the center deflection. As the signal increases, the leverage the left should be downward movement. When the baffle is fixed on the lever is near the nozzle, the amplifier output pressure back pressure increases, the role of the amplified film head to wither section Oven gas valve, the Gas Grill Control Valve stem down. The stem of the displacement through the pull rod are converted into angular displacement feedback shaft and the feedback plate, then the feedback through the range pivot to body movement. Feedback spring is fixed at the other end of the lever on the stretch, produce a negative feedback torque, so that the lever balance, while the stem is also stable in a position to determine the corresponding, to realize between the signal current and position proportional relationship. However, the traditional Oven gas valve positioner amplifiers constant throttling orifice prone to clogging, back pressure maximum, the amplifier gas cooker safety valve stuck, the nozzle and baffle strict shortcomings.

Development Trend of China's pressure regulating valve analysis

In recent years, with the changing environment of industrial technology, advanced manufacturing technology are eager to enter the Gas Heater Valve manufacturing. Most manufacturers are in the application of advanced manufacturing technology, investment and manufacturing execution systems used to achieve process automation and CNC machine tools, die-casting, the whole mold and other high precision molding technology, high-precision grinding machines, high efficiency and precision processing technology, surface modification and coating of special processing and material modification technology to produce sophisticated, usable, reliable, high-quality products --- flow control valve from tiny to large diameter valve; from the traditional to the eccentric single seat valve type rotary valve, V-type ball valve, axial flow valve; from the anti-surge, anti-cavitation cavitation, abrasion resistant to high temperature and pressure regulating valve special valve, special valve; from the big thrust of the pneumatic actuator to quickly respond to the electric actuator; from safety assurance process tightly closed to ensure the environment ultralow leakage. Regulating valve and the development of petroleum and petrochemical process control simultaneously, the formation of the whole process, large-scale, high-parameter products, basically meet the control requirements for petroleum and petrochemical production.
A pressure regulating valve, also known as self-balancing valve, flow control valves, flow control, dynamic balancing valves, flow balancing Gas Valves, is an intuitive and easy flow regulation control device, the pipe network application traffic control valve can be set directly from the design constant flow, the valve can be in the action of water flow automatically eliminate the remaining pipeline pressure head and pressure fluctuations caused by deviation, no matter how the pressure changes in the system are kept constant flow setting, the valve These features enable a complete network flow regulator to tune into a simple flow net work distribution, effective solution pipe network hydraulic imbalance.
Pressure regulating valve without external energy, energy in the absence of electric airless workplace, convenient and saves energy.
Finely segmented pressure range and cross each other, high regulation accuracy.
Pressure setting value can be set continuously during operation.
After the pressure regulator Oven Gas Valve

 on the front than the back pressure valve and the valve pressure is available from 10: 1 to 10: 8.
Rubber diaphragm type detection, high precision actuators measured, sensitive.
Using pressure balance mechanism, the regulator valve responsive and precise control.