Centrifugal harness processing working principle and maintenance

Centrifugal wire harness processing has obvious applications in many industrial production, especially in the metal smelting industry. In this regard, Huicheng yuan harness processing to take centrifugal harness processing failure causes of countermeasures, and pointed out that the corresponding anquan operation improvement method, for the future purchase, use and maintenance effect equipment provides a theoretical basis. Centrifugal wire harness processing overview centrifuge is mainly composed of rotor and stator. Including the rotor impeller and shaft. The impeller has blades, in addition to a balance disk and a part of the shaft seal. The main body of the centrifuge of wire harness processing is the casing (cylinder), and there are also diffusers, bends, reflux devices, outlet pipes, exhaust pipes and part of the shaft seal on the stator.

Working Principle of Wire Harness Processing Centrifugal When the impeller rotates at high speed, the gas rotates with it. Under the action of centrifugal force, the gas is thrown into the rear diffuser, forming a vacuum zone at the impeller. At this time, fresh air enters the impeller. The impeller keeps rotating, and the gas keeps sucking out and throwing out, thus maintaining a continuous flow of gas. Centrifugal harness processing relies on changes in kinetic energy to increase the pressure of the gas. When the rotor with blades rotates, the blades drive the gas to rotate and do work to the gas, thus gaining kinetic energy. Upon entering the stator section, the velocity energy pressure head is converted to the required pressure as the stator expands, reducing the velocity and increasing the pressure. At the same time in the stator part of the guidance into the next yiji impeller continue to pressurize, zui after the discharge from the worm shell. For each group of harness processing, in order to meet the design of the required pressure, each group of harness processing is set up an infinite number of stages and segments. Centrifugal harness processing faults and operation and maintenance 1) zui after yiji temperature is too high fault performance: harness processing car tripped, the scene to watch the alarm record, showing "the end of the temperature is too high". After reset, check no abnormalities, and start running. Analysis and treatment: According to the query harness processing operating parameters trend, before the trip current down to 55anpei, one or two impeller vibration zengda, IGV and venting valve to work together, exhaust steam pressure curve fluctuations. At the same time, check the trend of 10KV voltage. The voltage in this period drops from 10.22KV to 9.46KV, and the grid voltage is in a low voltage state in this period. It can be judged that when the current drops to 55anpei, it has entered the wire harness processing surge protection zone. During this period, the occurrence of harness processing surge phenomenon, resulting in unit protection tripped.2) Surge tripping fault fault:Harness processing start-up tripping, to the scene to see the tripping record, showing that the last stage of the inlet temperature is high alarms, surge alarms. Inlet filters and exhaust of the site inspection shows no abnormality. Then two start-up test runs, both about 5-10s after the start-up of the wheeze, followed by alarm shutdown. (About 5s after startup, the display showed that the system pressure rapidly rose to 4bar and the inlet guide vane opening was 0 points). Cause analysis: According to the operating conditions and start the changes in various operating parameters, judge the start-up process of harness processing may be the cause of wheezing as follows: A. Inlet filter clogging, resulting in high inlet resistance; B. Inlet guide vane is too small, the guide vane jammed or immobile; C. Exhaust valve is not open, the opening degree of the indication does not correspond to the actual or the valve core off the jammed; D. Due to the interstage cooler fins clogging, the exhaust is blocked; E. Exhaust muffler is blocked; E. Exhaust muffler is blocked; E. Exhaust muffler is blocked; E. Exhaust muffler is blocked; E. Exhaust muffler is blocked; E. Exhaust muffler is blocked. Exhaust muffler is blocked by foreign objects; centrifugal harness processing principle of operation and maintenance troubleshooting: harness processing inlet guide vane and air release valve for disassembly inspection and action test, the inlet guide vane blade without jamming phenomenon, action is normal; check the exhaust valve valve plate action, no shedding or jamming phenomenon; check the intake filter dusty zui outer filter plate, dier layer filter plate is relatively clean; replacement of the intake air filter element , and on-site inspection of the air muffler, found that the lower part of the traces of water spray and other abnormalities; before starting, start before the start of the manual disk drive, and then test drive. The machine starts and runs normally. Comprehensive analysis and prevention:The downtime failure factor of wheezing is mainly dirty intake air filter yiji cartridge; condensate accumulation at the exhaust muffler leads to exhaust blockage (on the other hand, consider poor drainage of the interstage cooler or leakage of the cooler itself).

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