Blackwater pneumatic regulating valve

The pneumatic black water regulating valve was developed by the American r company, which has made significant contributions to the coal chemical industry and leveraged its technical advantages. Qigao Valve uses the technology of high-end personnel for many years to develop the regulating valve principle and is mainly used for high pressure differences, strong erosion, strong corrosion, media The flow and pressure control that contains solid particles and flash evaporation conditions effectively solves the problem that the internal parts of the regulating valve are easily eroded. It has been widely used in many domestic coal chemical companies and has received unanimous praise from users. Compared with ordinary control valves, black water control valves have a compact structure and smooth flow paths, which can minimize flow resistance and erosion. Carbide is spray-welded on the surface of the valve stem to ensure the erosion resistance of the part in contact between the valve stem and the medium. The following is used: The guide tube structure plays the role of guiding and scraping off impurities adhered to the valve stem, effectively preventing silicon formation in the packing chamber. The valve head, valve seat and outlet flow channel are all made of tungsten carbide material, which can effectively prevent the erosion of the medium. The valve adopts a spring-type double-acting cylinder actuator, which has good rigidity and high output power. The valve operates stably. The valve positioner is an imported intelligent product with self-diagnosis function. It is very easy to adjust. The valve seat is an integral valve head and the valve stem (spare parts) are integrated into one. Valve maintenance and replacement of spare parts are easy. The larger diameter of the valve stem can effectively solve the problem of valve stem vibration during flash evaporation conditions. Laboratory tests and actual working conditions have verified that the black water regulating valve operates in good condition and is at the leading level in the domestic industry. Technological Advancement
The black water regulating valve is one of the indispensable and important equipment in the coal chemical plant. The valve has long been used in gas, liquid and solid three-phase flow media with a large pressure difference between the inlet and outlet. On the premise of ensuring the adjustment characteristics, both material selection and structural design reflect the designer's ideas and measures for the valve to be corrosion-resistant, erosion-resistant, safe and reliable. The unique fluid structure design, special technology, material formula and pneumatic actuator make the performance of the black water and gray water regulating valve more stable and reliable. The valve body material can be selected from, -,,, duplex steel, special materials, etc. The valve body is available in forged or cast options. This valve can completely replace foreign black water and gray water regulating valves.
Structural features
Fluid: The design process solves the vortex problem and ensures smooth flow of fluid.
. Resonance sleeve: The design of the resonance sleeve effectively solves the resonance caused by high pressure difference.
. Resonance sleeve technology: The inner cavity of the resonance sleeve is designed with a scraper to effectively scrape off the coking on the surface of the valve core and prevent it from getting stuck.
, Valve stem: Anti-vortex design, the valve stem and the valve core are mechanically connected.
, Valve core and valve seat: The valve core and valve seat are sprayed with diamond, which effectively solves harsh problems such as flash evaporation, particle erosion, and cavitation.
. Flow channel design: Hot-pressed inlaid spray-coated diamond is used in the inlet and outlet flow channels and the variable diameter area to solve technical problems such as inlet and outlet flow channel erosion, flash evaporation, particle erosion, cavitation, and hard cracking.
Maintenance: The design structure is easy to maintain, disassemble and assemble.
Black water regulating valve is suitable for long-term use in gas, liquid and solid three-phase flow media with large pressure difference, strong corrosion and severe erosion.
Main dimensions
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