What are chemical pump installation requirement specification

Chemical pump group is more than one chemical pump is installed at the same time, in the industrial production are common, so the pump set is in the installation, between what are the technical specifications and requirements? Group 1, pump installation, the pump is set in place for leveling shall meet the following requirements: 1) Vertical and horizontal centerline to allow deviation to 5 mm; 2) Elevation of allowable deviation for & plusmn; 5 mm, connected to other devices, the elevation of allowable deviation for & plusmn; 2毫米; 3) Levelness allowable deviation: longitudinal is 0. 5 mm/m, transverse to 0. 10mm/m。 2, install the benchmark survey points selection should be carried out in the following parts: 1) The overall installation of the pump, should be to import flange surface or other horizontal machining datum as a benchmark; 2) The collapse of the installation of the pump, based on machining of the water pump body; 3) Vertical pump, based on coupling or motor seat; 4) Reciprocating pump, the slide to the fuselage, bearing, shaft exposed portion or other processing surface as a benchmark. After 3 leveling, pump group is looking for qualified, tighten the anchor bolts, bolts tightening torque and the axial tensile stress in accordance with the requirements of the standards or regulations. After 4, at the beginning of the pumps is looking for qualified, should be within 24 h of the anchor bolt hole grouting; Grouting, the perpendicularity of the anchor bolt should be not greater than zero. 15/1000m; Grouting material should be based concrete grade higher than the pump group level, and should be continued. 5, shaft alignment should be performed after the anchor bolts. Although the water pump before they go out factory have finished the assembly and calibration, but because of the influence of the transportation and installation process, coupling should be recalibrated. Usually use dial indicator to detect the end of the coupling is jumped and diameter. The deviation should be consistent with: 1) Flange coupling assembly, two and a half coupling end should be close contact, radial displacement of two axis deviation should be less than 0. 3 mm, axial inclination should be less than 0. 05/1000, or according to the requirement of the water pump product technical documents; 2) Column elastic sleeve pin coupling assembly, the two axis deviation and coupling end clearance, should comply with the pump product technical file or the relevant provisions of the standard; 3) Laminated flexible coupling assembly, the deviation in the products should comply with the pump or the relevant provisions of the standard technical documentation. 6, driving machine and pump adopt the belt drive, two axis parallelism, two rounds of migration should comply with the pump product technical file or the relevant provisions of the standard. 7, anchor bolt hole grouting concrete strength reaches more than 75% of the design strength, may anchor bolt fastening. 8, for heat pump or prime mover for steam turbine pump group, thermal expansion factor at work, should be considered in the cold, when installation should be high temperature operation equipment side of the elevation in accordance with the requirements of pump product technical file to adjust or to find is hot, the pump running after a period of time under the operating temperature, if it is found that the vibration is too large, can be in after the pump is going to cut off the power, release coupling bolts are found in the back. For cryogenic temperature and installation of pump or other work when the temperature differences of the pump, if you run after a period of time found that the vibration, should also find make appropriate adjustments. 9, pump group with shim leveling is find, should meet the following requirements: (1) Shim should be close to the both sides of the anchor bolt, if the center distance between the anchor bolts, when more than 1 m should add shim between the anchor bolt, shim total height should be controlled in 20 - general 40mm； 2) With a small hammer percussion check tightness of mat iron group, should be no loose phenomenon; With 0. 05 mm feeler check mat iron, iron and the base, the gap between the same clearance plane from people on both sides of the plug should be no more than the sum of the length of the pad iron long ( Wide) A third degree; 3) In a timely manner after qualified shim group layer between the tack welding. 10, elastic support pumps installation should comply with the regulations of pump product technical documents.
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