On May 20th, a 500,000 t/y heavy oil catalytic cracking unit designed by PetroChina Huadong Design Branch and supported by PetroChina Guangxi Tiandong Petrochemical Co., Ltd. produced qualified products and achieved a successful start. On the eve of construction, technicians performed a two-fluidization test in a catalytic cracking unit. The amount of catalyst was 93 tons. After 48 hours in the fluidization test, the catalyst loss was only 3 tons, showing good performance. PetroChina assisted Guangxi Tiandong Petrochemical Refinery Project to include three production facilities: 50-thousand-ton/year catalytic cracker, 80,000-ton/year gas fractionation unit, and 30,000-ton/year polypropylene plant, with a total investment of approximately 450 million yuan yuan.
When the diesel engine is turned off, there is a coil in the solenoid valve that is the same as that of the generator. When the power is turned on, a magnetic force is generated to pull the shut-off switch back to the oil. When the power is off, there is no magnetic force. oil. After the flameout solenoid valve is used for a long time, the piston is easily blocked by dust and dirt and cannot move, and then there is a phenomenon that the flameout solenoid valve cannot be started or extinguished.
Cut off Solenoid valve,Soleoid valve,Fuel Shut off Solenoid
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