Detection technology used in explosion-proof electric regulating the necessity of the pneumatic valve

it is well known: pneumatic valve is used to control the direction of the fluid in the fluid system, pressure, flow of the device is to make the piping and equipment within the medium ( Liquid, gas, powder) Flow or stop and can control the flow of the device. You must be clear: in the petrochemical production pneumatic valve leakage is the major accident hidden trouble to the enterprise efficiency, safety and environment have important influence on the problem that nots allow to ignore. So below small make up take you under analysis: pneumatic valve testing technology for the benefits of petrochemical installations and significance:
detection technology used in explosion-proof electric adjustment function and advantage of the pneumatic valve
pneumatic valve leakage fault timely and accurately found in petroleum and chemical industry is crucial to the safe and effective production. And existing test method for pneumatic valves are relatively simple, such as pneumatic valve test overall disassembly and maintenance, and this kind of pneumatic valve testing technologies not only influence the normal operation, also due to the long-term in a pneumatic valve without daily maintenance and implied hidden trouble. Pneumatic valve and online detection technology for its outstanding advantages: pneumatic valve if there is a very effective to detect the leakage and the location of the leak and the extent of the leaked makes this technology will replace the pneumatic valve disassembly and has become the focus of the enterprise as a whole. Regarding the pneumatic valve on-line detection of the two methods were analyzed and discussed: acoustic emission method and negative pressure wave method
acoustic emission test can detect the pneumatic valve leakage. It is used to test the advantages of pneumatic valve sealing performance is poor, acoustic emission is also called the stress wave emission, rapid release is the local energy source material and the phenomenon of transient elastic wave. When pneumatic valves because of his bad sealing performance test, for out of the sealing surface spray medium form on the sealing surface elastic wave turbulent flow, the elastic wave is leak acoustic emission signal. The strength of the signal and the fluid flow, speed, pneumatic valve before pressure, pressure difference before and after pneumatic valve, pipe layout and other factors. Once when this kind of elastic wave signal transmitted to the surface of the material, the acoustic emission detector can detect the signal, at the same time it into electrical signals, and amplification and processing, thus achieve the goal of on-line detection of pneumatic valve leakage. Acoustic emission method lies in its high sensitivity, the advantages of online without having to remove the pneumatic valve, convenient and can be used for difficult to close the pneumatic valve.
detection technology used in explosion-proof electric adjustment
the significance of pneumatic valve pneumatic valve leakage in the petrochemical production is the major accident hidden trouble to the enterprise efficiency, security and environment have important influence on the problem that nots allow to ignore. Found for pneumatic control valve leakage fault timely and accurately for petrochemical industry is crucial to the safe and effective production. At present, the pneumatic valve online detection technology has been mature, and because it can effectively distinguish the pneumatic valve leaking, provide unexpected maintenance method for pneumatic valves, so has the outstanding advantages of acoustic emission in the near future online pneumatic valve and negative pressure wave leak detection technology will be widely used.