1. Pump mounting position of the mounting points of the pump should meet the vacuum suction on the height requirements of the foundation must be level, stable, be consistent with the direction of rotation at the pump power machine. Pump and power machine with shaft connection, to ensure that the axis of the same line in case of unit vibration and bearing operation to prevent single-sided wear; if the tape drive, open the pump should be parallel to the axis of the shaft, the tape wheel alignment . If there is more than one unit in the same room, the distance between the unit and the unit should be over 800mm between the unit and the wall. Pump suction pipe must be well sealed, and to minimize the elbow and gate valve, filling the water should be drained when running, the tube should not accumulate during operation of the air pipe, requiring suction pipe was slightly inclined and pump inlet connection, the inlet should have a Submerged Depth. The reserved hole on the basis of the pump should be poured according to the size of the pump. Pump installation should be consistent with the national standard GB50275-1998 "compressor, fan, pump installation engineering construction and acceptance specification." This applies to ①centrifugal chemical pumps , well pumps, axial flow pump, and a vertical guide vane mixed flow pump, a reciprocating motor pump, steam reciprocating pumps, metering pumps , screw pumps and water-ring vacuum pump is installed. ② should check the size of the pump installation foundation, location and elevation should be consistent with engineering design requirements. The pump unpacking inspection shall meet the following requirements: The pump parts and components should be counted according to the provisions of the technical documents of the equipment, and there should be no missing parts, damage and corrosion, etc., the nozzle protector and the cover should be intact; should check the pump's main The installation dimensions should be in accordance with the engineering design; the type and size of the main parts, seals and gaskets of the pump delivering the special medium should be checked. ④ The factory has been assembled, well-adjusted part of the disassembly. ⑤ drive and pump connection, should be based on the axis of the pump to find a positive drive machine and pump connection between the middle of the machine should be based on the axis of the middle machine to find positive. ⑥In addition to the pipe installation should comply with GB50235 ~ 1997 "Industrial Metal Pipe Project Construction and Acceptance Code," the provisions should still meet the following requirements: pipe and pipe ends should be cleaned, remove debris, sealing surface and the thread should not be damaged ; Suction pipe and the output pipe should have their own support, the pump shall not directly bear the weight of the pipe; the flange face connected to each other should be parallel to the axis of the threaded joint should not be forced by flange bolts or fittings; pipe After connecting with the pump, the original accuracy of the pump should be re-checked. When the pipe connection is found to cause deviation, the pipe should be adjusted. After the pipe and the pump are connected, welding and gas cutting should not be carried out on the pipe. When welding and gas cutting are required , The pipelines should be disassembled or the necessary measures should be taken and the welding slag should be prevented from entering the pump. The configurations of suction and discharge pipes of the pump should comply with the design requirements and when there is no regulation, press. GB50275 ~ 1998 Appendix II of the regulations. ⑦ lubrication, sealing, cooling and hydraulic piping systems should be cleaned and kept clear; the pressure part should be rigorous testing equipment specifications. When there is no regulation, it shall be implemented according to the current national standard "Code for Construction and Acceptance of Industrial Metal Pipelines". ⑧ pump test run should be carried out in the normal operation of its subsidiary system after a separate test. ⑨ pump should be carried out in the media test run, test run of the media or substitute media should meet the design requirements. The powerlifting barbell bar is designed for athletes to perform heavy squats, bench presses and deadlifts. It feels hard and does not store elastic energy. The diameter is also thicker (29mm) than the Weightlifting Barbell Bar. Powerlifting Competition Bar,Powerlifting Training Bar,Best Powerlifting Bar,Powerlifting Bar 20Kg,Weight Lifting Standard Bars SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.js-luggagecarts.com
Chemical pump construction of the installation points