Corrosion resistant pump installation method and design requirements

Corrosion-resistant pumps is now commonly used in the chemical industry pump, corrosion-resistant pumps common stainless steel pump, fluorine plastic pumps. Including fluorine plastic pump usually also called four fluorine water pump, suitable for conveying any concentration of acid, alkali, salt and other strong corrosion solution, is of strong corrosion liquid in industrial production often choose water pump, the user in selecting corrosion-resistant pumps, what are the installation methods and design requirements, a, water pump installation and construction conditions: 1 pump installation layer structure has gone through the acceptance, building on axis, elevation lines has draw the strength of pump concrete foundation has reached 70%. 2, before and after pump valve, water pump inlet pipe, in turn, connect: butterfly valves - Pressure gauge - The filter & ndash; Soft answer; Outlet pipe in turn connect: soft - Pressure gauge - The check valve Butterfly valve 3 leveling, water pump, water pump engine on the foundation in place, the center line of the frame should be with the base center line overlap, so when installation should be based on the first draw the centerline. Water pump of a balancing method is: ( 1) Level on the axis measuring axial level, deviation in & plusmn; Less than 20 mm. ( 2) Measured with the method of vertical, import and export of the flange is parallel to the vertical plane and vertical pump, if not, use the method of adjusting shim thickness leveling. Water water pump motor to align to the anchor bolt hole after leveling and base and the pump within the space between the perfusion fine stone concrete and compacted, make the anchor bolts and foundation is an organic whole repeatedly. Mixture of fine stone concrete ratio of cement, sand = 1:2 to again after the second water detection concentricity and levelness, prevent water pump in the second infusion or tighten the anchor bolts in the process of moving. Second, the frequency conversion pump lift of determination of variable frequency pump head should guarantee the water inlet pressure is higher than indicated on point pressure 30 ~ 50 kpa, can also be determined in accordance with the type: a. System of filling water point pressure, Pa; b。 The pressure of the pump inlet line loss, Pa; c。 Filling water water pump out the pipeline pressure loss, Pa; d。 Fill the height of the water tank system is higher than that of low water filling water points, m; e. The density of water, kg/m&sup 3; ; f。 Acceleration of gravity, m/s2. Three, individual running debugging 1, before the start of the pump: should open the cover plate of the car, first with the hand wind is flexible; Open the inlet valve and exhaust valve to make water pump cavity, then close vent valve; Some power motor, determine whether to correct. 2. Run: open inlet valve, close the export pipeline valve; , turning on the power supply when the pump rotation speed to normal, and then open the export pipeline valve, and to adjust to the required point; Observe the pump after the operation with or without abnormal situation, if there is any abnormal situation should immediately stop check, running after processing. 3, parking: after gradually close the outlet valve, cut off power supply; Close inlet valve; Such as environmental temperature is lower than 0 ℃, the heat preservation measures should be taken.
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