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blower-induced draft fan of the whole company were estimated. Invited the China University of Petroleum, Fushun Petroleum Institute of these equipment for detailed accounting and calibration, and several batches of the pump to carry out the transformation. In the next stage, we will continue to deepen the energy-saving transformation of rotary equipment. The energy-saving projects currently being implemented mainly include the transformation of boiler drums and induced draft fans with hydraulic couplings, and the transformation of sulphur incinerator fans with magnetic speed regulators, part of cooling tower fans, air-cooled fans to add permanent magnet governor transformation and new technical measures project matching motor with high-efficiency energy-saving variable frequency motor. In 2011, the company is expected to improve the energy efficiency of equipment will be a big step, the results will be very significant. In practical engineering design and application, in order to ensure that the fan or water pump system meets the output requirements under load, it is usually necessary to equip the fan and water pump system according to the output capacity of the system, in most cases, it is not necessary to use the system under full load, but according to the actual needs of the load, through flow control components such as valves or damper, to achieve flow and pressure control, to meet the needs of the production process.