Eccentric rotary pneumatic valve is suitable for thermal power plant equipment

Eccentric rotary pneumatic valve which is also called CAM flexure pneumatic valve, its working principle is an eccentric rotating fan pneumatic valve, using eccentric crown is tangent with the pneumatic valve seat, opened, out of the pneumatic valve seat; Closing, gradually contact pneumatic valve seat, make the clamping force on pneumatic valve seat.





ordinary eccentric rotary pneumatic valve pneumatic valve body is made up of long neck clamp body, the bow section body or half a crown postures pneumatic valve, pneumatic valve seat, retainer, pneumatic valve stem ( Main, auxiliary shaft) And guide sleeve and packing, etc. Between parts monotonous species, different specifications do not standardization, seriation, modularization, simple combination of parts. According to the concept of 'pneumatic valve' puts forward the conception and idea, concept of eccentric rotary pneumatic valve for sealing performance requirements or conditions on the influence of the material, etc. , in the pneumatic valve was carried out on the main components in the design of packet classification, establish product modular library again according to the different requirements of product characteristics to establish parts module library.





because of the eccentric rotating pneumatic valve is made up of eccentric turn adjusting and pneumatic disc cutting medium, taking advantages of pneumatic valve and pneumatic valve. Its small amount of leakage and can double as to cut off the pneumatic valve, adjustable than the big, small volume, light quality, flow coefficient, high dynamic stability, pneumatic valve effect ( General pneumatic valves in the critical point flow characteristic curve distortion will occur, this phenomenon is called pneumatic valve effect) Is not obvious, pneumatic disc unbalanced force (smaller About single-seat pneumatic valve 1/2) Wide temperature, high universality. If you want to change the same specifications of pneumatic valve flow capacity, only need to replace the pneumatic valve seat, don't need to change the pneumatic valve disc. Pneumatic valve lumen simple easy to coat lining structure, to adapt to the needs of different medium. The pneumatic valve comprehensive performance is superior, can adjust the pneumatic valve instead of ordinary, especially suitable for the requirements the adjusting range is wide, It can be instead of one large - at this time D, two parallel adjustable small pneumatic valve, so that the control system and the simplified) The operation condition of the flow capacity is big, small resistance. Such as in the coal-fired power plant deaerator heating steam regulating pneumatic valve and the main condensate of pneumatic valve and high viscosity medium ( Such as heavy oil) And so on.