The reason of valve pipe vibration and elimination measures pipe type pneumatic valve use

The reason of valve pipe vibration and elimination measures pipe type pneumatic valve use

The root cause of pipe vibration in unit system is the design, installation, operation and operation of the unit, and the pipe vibration directly reflects the mechanical properties and operation of the rotating equipment. When the system equipment and pipeline vibration, should be according to the specific situation, one by one analysis of the possible causes of vibration, find out the crux of the problem, and then through serious discussion and analysis to formulate feasible and effective measures to eliminate, reduce the vibration hazard to a relatively low limit.
Hazards of pipeline vibration
Low intensity mechanical vibration is inevitable in the rotating equipment and flowing media of the unit. The mechanical vibration of the rotating equipment is transmitted to the system pipeline through the connecting parts and media of the system, thus posing a great threat to the safe operation of the unit. The hazards of pipeline vibration mainly include the following points:
1. Harm to staff
Interference of staff’s vision, reduce the construction efficiency; Staff feeling tired; Leading to quality accidents and even safety accidents; Working in the vibration environment with considerable intensity for a long time may cause great harm or influence to the body of the construction personnel.
2. Hazard to buildings
Due to the different intensity and frequency of pipeline vibration, the building structure of some buildings will be damaged (common damage phenomenon is the foundation and wall cracking, wall peeling, stone sliding, heavy can make the building foundation deformation, etc.).
3. Harm to precision instruments
Pipeline vibration will affect the normal operation of precision instruments and instruments of the system, affect the accuracy and reading speed of the calibration of instruments and instruments, and even the reading can not be done. If the vibration is too large, it will directly affect the service life of instruments and instruments, and even be damaged; For some sensitive electrical appliances, such as sensitive relays, vibration will even cause its misoperation, which may cause some major accidents.
4. Damage to the system main device
Long-term pipeline vibration back will cause uneven output of the main equipment of the system, which will affect the mechanical properties and normal operation of the main equipment.
Causes of pipeline vibration and its elimination measures
The root cause of pipe vibration in unit system is the design, installation, operation and operation of the unit, and the pipe vibration directly reflects the mechanical properties and operation of the rotating equipment. When the system equipment and pipeline vibration, should be according to the specific situation, one by one analysis of the possible causes of vibration, find out the crux of the problem, and then through serious discussion and analysis to formulate feasible and effective measures to eliminate, reduce the vibration hazard to a relatively low limit.
The reasons for vibration of rotating equipment and pipeline and its elimination measures are analyzed as follows, which can be used as a reference for preventing and eliminating pipeline vibration in field construction.
1. Motor vibration causes pipeline vibration
2. Vibration of pump body leads to pipeline vibration
3. Pipe vibration is caused by other reasons in the water supply system
4. Other reasons of compressed air system lead to pipeline vibration
Pipe type pneumatic valve use
Pipeline pneumatic valve is a new type of valve developed by our company, with 20 years of production experience, with its small size, compact structure, light weight, control performance; Easy to use, installation and maintenance, won high praise from all walks of life. Widely used in petroleum, chemical, metallurgy, light industry, textile, environmental protection and other industries of gas pipeline control system. Pipe type pneumatic valve is mainly used in air separation industry nitrogen equipment, oxygen equipment and other equipment in the fluid transfer process control system of the terminal control components. It has the characteristics of simple structure, small volume and large flow. Also widely used in petroleum, chemical, metallurgy, light industry, medicine, electric power and other industrial sectors of the fluid delivery process control system. In recent years, especially, butterfly valves and other valves in the case of nitrogen production equipment failure rate on the high side, my company’s pipeline valve is a good substitute for other valves in the field of nitrogen application, with low leakage rate, high sensitivity, high cost performance, low maintenance cost advantages, has obtained the good effect, by the customer the consistent high praise. Pipe valve, the valve sealing mechanism and control system organic melt into one, so as to ensure sensitive control performance, the most optimized design to ensure millions of times of service life, is the ideal equipment for industrial automatic control.
Application and Features:
USES:
Is a right Angle rotary structure, it and the valve positioner matching use, can achieve proportional adjustment; V-type spool is suitable for various adjusting occasions, with large rated flow coefficient, large adjustable ratio, good sealing effect, zero sensitive regulating performance, small volume, can be installed vertically. Suitable for controlling gas, steam, liquid and other media.
Features:
Is a right Angle rotary structure, by V valve body, pneumatic actuator, positioner and other accessories; There is a natural flow characteristic that approximates equal hundred ratio; Double bearing structure, small starting torque, excellent sensitivity and induction speed; *** shear ability.
Technical performance:
1, nominal pressure (Mpa) : 1.0, 1.6, 2.5
2, flow resistance coefficient: 0.040.06
3. Control air source pressure: 0.30.6(Mpa)
4. Air consumption: 22-3450ml/ time
5. Switching time: 0.30.5(s)
6, body material: ZG25 ZG1cr18Ni9
7, sealing material: changed to PTFE fluorine rubber
8, use temperature: -80¡æ~180¡æ