The reason of valve pipe vibration and the elimination measure pipe pneumatic valve is composed of the actuator and the regulating mechanism

The reason of valve pipe vibration and the elimination measure pipe pneumatic valve is composed of the actuator and the regulating mechanism

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:
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
The pipe type pneumatic valve is composed of an actuator and a regulating mechanism
Pipeline in pneumatic valve using compressed air driven actuators of the combined group pneumatic piston movement, the force to beam and the characteristics of the curve track, drive tubular spindle rotation, compressed air disks to each cylinder, changed the direction of gas in and out of position to change the direction of spindle rotation, according to the requirement of the load (valve) the required rotation torque, adjustable cylinder combination number, Drive the load (valve) to work.
Pneumatic valve which is equipped with double-acting pneumatic actuators, two is two position control, on-off, there are five tunnel ventilation, 45 is one connected with gas source, two external and double-acting cylinder chamber in and out of the port connection, two with the internal chamber in and out of the port in succession, you may refer to the working principle of concrete working principle of the double-acting pneumatic actuators. Due to the more and more ways and means of pneumatic valve control, there are many ways to control pneumatic actuators in actual industrial production and industrial control.
The pipe pneumatic valve is composed of an actuator and a regulating mechanism. The actuator is the thrust component of the regulating valve. It produces the corresponding thrust according to the pressure of the control signal to promote the action of the regulating mechanism. The valve body is the regulating part of the pneumatic regulating valve, which is directly in contact with the regulating medium to adjust the flow of the fluid.
Operation method:
1. The opening and closing direction of the pneumatic valve should be closed clockwise.
2. Because the pneumatic valve in the pipe network is often manually opened and closed, the opening and closing rotation should not be too much, that is, the large diameter valve should also be within 200-600.
3. In order to facilitate the opening and closing operation of one person, the maximum opening and closing torque should be 240N-m under the condition of plumber pressure.
4 pneumatic valve opening and closing operation end should be square tenon, and size standardization, and face the ground, so that people can directly operate from the ground. Valve with wheel is not suitable for underground pipe network.
Pneumatic valve is used in all walks of life, especially in water/sewage treatment, beer beverage, food processing, pharmaceutical and medical equipment, disinfection cleaning, and textile chemical industry and other fields is a big advantage and broad market prospects. Pipeline pneumatic valve used in analytical instruments, automobile manufacturing, biotechnology, chemical, electronics, energy, genetic engineering, semiconductor, cosmetics, food and beverages, beer industry, mechanical engineering, medical treatment, medicine and health care, textiles, packaging, water (sewage) treatment, satellites and space experiments, nuclear reactors, deep-sea exploration and other fields.