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| Fig. 17-3 A typical compressor inlet injection system. |
5. The compressor inlet injection system shown in fig. 17-3 is a typical system for a turbo-propeller engine. When the injection system is switched on, water/methanol mixture is pumped from an aircraft- mounted tank to a control unit. The control unit meters the flow of mixture to the compressor inlet through a metering valve that is operated by a servo piston. The servo system uses engine oil as an operating medium, and a servo valve regulates the supply of oil. The degree of servo valve opening is set by a control system that is sensitive to propeller shaft torque oil pressure and to atmospheric air pressure acting on a capsule assembly.
6. The control unit high pressure oil cock control lever is interconnected to the throttle control system in such a manner that, until the throttle is moved towards the take-off position, the oil cock remains closed, and thus the metering valve remains closed, preventing any mixture flowing to the compressor inlet Movement of the throttle control to the take-off position opens the oil cock, and the oil pressure passes through the servo valve to open the metering valve by means of the servo piston.
Oil Field Water Injection Corrosion Inhibitor (AD-601)
ReplyDeleteThis product is compound mainly by imidazoline quaternary ammonium salt with some other corrosion additives, surfactants, etc. It has good corrosion resistance, good solubility, low emulsifying tendency and can be used in combination with many other chemical agents. It can inhibit both uniform corrosion and pitting corrosion It is an ideal corrosion inhibitor for water injection system in oil field. It is suitable for corrosion prevention of sewage treatment and closed water injection system and dissolved pipeline in high mineralization oil field.