At present, there are two kinds of products of centrifugal pump with base and no base. Install a small pump with a base, the first base hanging on the base, put on the ground screw, adjust the base position, and then use the horizontal ruler on the base of the processing surface, check the level of the base. Uneven padded under the base cushion padded iron or thin iron sheet, horn role is to increase the stability of the pump on the base and facilitate the second grouting. After leveling the base, tighten the ground screw. Horn placed on both sides of the ground screws, screws from the distance of 1 to 2 times the diameter of the foot screws too far too close are not appropriate. Horn must be stable, the number of each pile of horn does not exceed 3, in order to avoid sliding or bouncing phenomenon. After the tightening of the ground screw, it should be checked again for its horizontalness. If it meets the requirements, it can be filled with cement mortar into the bottom of the base for secondary grouting. After the cement mortar is solidified, install the water pump again. Install a large baseless pump, the first poured cement base has been cleaned, the pump hoisted to the base, then set into the anchor bolts, and then according to the following methods and steps for installation. 1. The pump to find the purpose of the pump to find is to make the import and export of the pump center line and the center line of the pump concrete pouring the same center line exactly the same time, with the power machine to match. The correct way is to: Aspect to the vertical and horizontal centerline, in the air each pull a vertical and horizontal centerline perpendicular to each other, hanging in the two lines on each of the two, move the pump to import and export of the centerline and axis hanging Line coincidence. In the process of finding a job, if it is found that the anchor bolt is not correct, or the pump itself does not meet the requirements of the bolt hole manufacturing instructions on the drawings, bolt holes and bolts do not match, or on the back of no room for movement, which Must take appropriate measures, such as expanding the pump anchor hole, knocking bolt, so that the pump to find the error does not exceed the required value. Cantilever single-stage single-suction centrifugal pump to find the same time by the above method to find the positive axis can be, should pay attention to the pump outlet center to meet the design of the outlet pipe installation level ç½. 2. To find the level to find the level of the purpose is to make the pump shaft to be level, the pump inlet and outlet flange surface was vertical to ensure that the inlet and outlet connections are correct. Pump leveling commonly used in the following ways: (1) small centrifugal pump leveling, the level of foot on the pump into and out of the flange surface and the shaft end of the back wheel on the end of the wedge-shaped iron to adjust the level of the pump so that Bubbles in the level ruler are centered. (2) large and medium-sized sh-type pump, you can lift the pump cover, the pump seat and the pump cover the junction of the election four "+" -shaped point, standing water ruler, If the four point scale readings are equal, indicating that the pump is level. If the error of the four directions of error exceeds 0.3mm / m ~ 0.5mm / m, indicating that the level exceeds the specified value, the application of wedge iron adjustment until it meets the requirements. 3.Measurement High pump elevation is the elevation of the pump shaft centerline. The purpose of the test height is to check the actual installation of the pump height and design and installation of compliance is to ensure that the water pump in the allowable height of water work. The method of measuring the height of a marker uses two rods, one on the base surface of the target and the other on the base of the center line of the pump shaft, calibrated with a level gauge, and the actual height of the installation is found after calculation. The above correction, to find equal processes, are often interdependent, so it needs several repeated adjustments until it meets the requirements. After the location of the pump will be fastened to complete the installation of the pump body fasteners.
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