SPP type corrosion-resistant and wear-resistant chemical mixed flow pump

Description :

SPP type chemical axial flow pump is a type of pump between centrifugal pump and axial flow pump, also known as diagonal flow pump. SP pumps can economically and effectively transport high flow, low head, pure or containing certain particles, chemically neutral or corrosive liquids. SP chemical pumps have high performance and low energy consumption. The energy consumption of the pump is average throughout the entire functional range, and it can be started under closed valves without overloading the motor. The overcurrent section is large, not easy to block, the structure is tight, and the service life is long. Comparing the performance characteristics of SPP type corrosion-resistant and wear-resistant chemical mixed flow pumps in terms of flow rate and head. Secondly, the difference between SPP type chemical axial flow pumps and centrifugal pumps and axial flow pumps is that the flow rate of SPP type chemical axial flow pumps is larger than that of centrifugal pumps and smaller than that of axial flow pumps; The head of SPP mixed flow pump is higher than that of axial flow pump and smaller than that of centrifugal pump; The flow rate of SPP ranges from hundreds to thousands of tons per hour, with a lift of about 5 meters to 20 meters. The structure of the SPP type corrosion-resistant and wear-resistant chemical mixed flow pump, whether it is a volute mixed flow pump or a guide vane mixed flow pump, is composed of five components: impeller, pump casing, pump shaft, bearings, and packing sealing device (Figure 3-18). The appearance of the snail shell mixed flow pump is similar to that of a centrifugal pump; The shape of the guide vane mixed flow pump is very similar to that of an axial flow pump. The shape of the mixed flow pump impeller is thick and short, and it partially resembles the impeller of a centrifugal pump; Part of it is like the impeller of an axial flow pump, with twisted blades in a spiral shape. The flow channels between the blades of the impeller are wider, and the outlet edges of the blades are inclined; It differs from the water flow conditions inside the impeller of centrifugal pumps and axial pumps. Water flows in the impeller of a mixed flow pump. It enters axially and flows out in an inclined direction, so a mixed flow pump is also called a diagonal flow pump. There are two types of pump casing structures: one is the volute shape. For example, the HB mixed flow pump is basically the same as a centrifugal pump, but its pump body is wide and installed horizontally; The other is cylindrical. For example, guide vane mixed flow pumps and agricultural discharge pumps are similar to vertical axial flow pumps, and the pump body is also equipped with guide vanes for vertical installation and use. Instructions for using SPP type corrosion-resistant and wear-resistant chemical mixed flow pump: The mixed flow pump is a "pull-out" structure pump. When inspecting and disassembling the impeller and shaft seal, it is not necessary to dismantle the pipeline connected to the pump body. It is equipped with a precision machined pump shaft, a bearing lubricated with thin oil, and a protective shaft sleeve in the packing box cover. The oil level in the bearing box can be controlled by a constant position oil cup. Purchasing instructions for SPP type corrosion-resistant and wear-resistant chemical mixed flow pump: The pump body's legs can withstand any load from the pipeline and directly transmit it to the foundation. In this way, the rotor will not bend due to the load borne by the pump, ensuring the service life of the bearings. Due to the larger overcurrent area, it reduces blockage. The rotation direction of the pump, when viewed from the drive end, is clockwise. The power drive can be either an electric motor or an internal combustion engine. The pump device can be equipped with a complete air release device, which is beneficial for the exhaust of the suction pipeline. Performance parameters table of SPP chemical axial flow pump, including flow rate and head

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