Through introducing the pressurization technique of the pump used in the chemical industry and analyzing the advantages and disadvantages of pressurized and unpressurized pump, this paper puts forward the usage demands of unpressurized pump in order to satisfy the needs in industrial manufacture.

Influence of salt-out liquid-solid two phase flow on chemical pump performance;

Selection and usage of chemical pump in phosphoric acid plant of Huangmalin chemical Corp.

Application of high performance concrete pumping construction in east pumping station project in Bostan Lake

By carrying on technical argument on trial to the C60 high strength concrete with artificial-sand,the concrete pumping construction was successfully applied in core tube wall of Peking Century Wealth Center.

this article introduced the design, experimen- tation and pumping construction of shielding structure overweight concrete in a certain reinforced concrete project which adopted the biggest linac in China.

The mechanical fault trip of unit 6 in the pumping mode of the Guangzhou Pumped Storage Power Station-B(GPSPS-B) caused by low oil level of the governor oil pressure tank is analyzed.

With automatic PLC controlling main frequency water pump unit, the disadvantageous harmonic wave, flutter, the depressed pressure,water hammer effects caused by the inverter will be eliminated, and the purposes of stabilizing water supply pressure, conserving the power supply and improving the system reliability were obtained.