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HZ/HZQ chemical process pump
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Brief introduction
■Flow rate：Q= 2~2050 （m³/h）
■Total head：H=3~150 (m)
■Speed：n=1450/2900rpm
■Temperature：T=-20~250℃
■S.g.：γ≤1.85
■Pump diameter：50~350mm
■Rated performance points and general arrangements conform to ISO2858(GB5662),technical conditions conform to GB/T5656(equivalent to ISO5199)
■Heavy duty shaft design,bearing capacity is averagely increased by 75~160%,therefore,the life of bearings are multiply prolonged.
■Impeller and shaft are connected by a reliable way,eliminated the possible loose of impeller nut; Reliable sealing between shaft and impeller enables the long life of shaft.
■Design pumping temperature is up to 250℃, suitable to pump molten sulfur,polymer or other high temperature fluids.
■Non-contact oil sealing design,eliminates the leakage of bearing housing.
■Cartridge mechanical seal of internal forced cooling and big sealing chamber reduces the pump failure.
■High interchangeability saves the cost of spare parts.
■Both closed impeller(HZ model) and open impeller(HZQ model) are available;Rear blades and wear ring are adopted to balance the axial force.
■Impeller and shaft are connected by a key,and locked by a special impeller nut.Eliminates the possible loose of impeller nut during operation,shut down and counterflow.
■Back pull design,the rotary part can be disassembled from the casing without dismantle the pipes.
■A cone space is designed for the sealing chamber,which allows the mechanical seal to be installed into a spacious room.Meanwhile,the impeller rear blades,inner surface and the guide blades are working together to form a self-flush flow flied in the sealing chamber without any external flush fluid. And the heat on the friction pair can be removed rapidly by the self-flush flow;the self-flush flow can avoid the accumulation of particles(<5%) between the dynamic and static rings,therefore prolongs the life of mechanical seal.
Structure drawing is as below:
HZ/HZQ chemical process pump is suitable for pumping mineral acid solutions,organic acid solutions,brines,petrochemical solutions, organic compounds and other corrosive raw materials and products. It is mainly used in the below sections.
■Multiple evaporation and MVR evaporation process
■Refinery, petrochemical industries, coal chemical industries and low temperature projects
■Chemical industry,paper making industry,pulp industry,sugar making and other general process industries.
■Water plant, seawater desalinization
■Power plant
■Environment protection
■Vessel and at sea industries.
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