Centrifugal pumps are widely used in the chemical industry such as petrochemical industry, coal chemical industry to transport liquids with different properties and provide the pressure and flow required for chemical reactions. Centrifugal pumps can be divided into acid pump, alkali pump and clean water pump , Mud pump, etc. As the working medium and working pressure of the centrifugal pump are different, how to effectively extend the service life of the centrifugal pump to reduce the amount of maintenance, which has a great effect on improving the economic benefits of the factory. Ling pump industry experts to share how to extend the life cycle of centrifugal pumps to reduce the amount of maintenance experience. 1, for centrifugal pump selection and installation Centrifugal pumps should be selected according to the liquid being transported and checked for required performance, analyzed for suction, discharge conditions, intermittent or continuous operation, etc. Centrifugal pumps should normally be operated at or near the pressure and flow rates specified by the manufacturer's design The pump should be installed for the following review: 2, the use of centrifugal pumps Centrifugal pump test run should meet the following requirements: Centrifugal pump operation should note the following: â‘ prohibit anhydrous operation, do not adjust the suction port to reduce emissions, prohibit the operation of low flow; Knit Fabric Cutting,Clothing Cutter Machine,Knit Fabric Plotter,Fabric Cutting Machine For Sale Jinan Zhuoxing Intelligent Technology Co., Ltd. , https://www.zxtcuttingsystem.com
â‘ centrifugal pump foundation size, location, elevation should meet the design requirements, anchor bolts must be properly and correctly fixed in the concrete foundation, the machine should not be missing parts, damage or corrosion;
â‘¡ According to the characteristics of the pump transmission medium, if necessary, check the main parts, shaft seals and gasket material;
â‘¢ Pump leveling, find work should be consistent with the provisions of technical documents, equipment, if there is no provision should be consistent with the current national standard "mechanical equipment installation engineering construction and acceptance of common norms" requirement;
â‘£ All connected with the pump pipe, pipe fittings and oil pipe cleaning requirements should be consistent with the relevant national standards.
â‘ drive the steering should be the same with the pump steering;
â‘¡ identify the pipeline pump and coaxial pump steering;
 '¢ the fixed connection should be no loose parts, the lubricating parts filling lubricant specifications and quantity should be consistent with the provisions of technical documents;
â‘£ pre-lubrication requirements of the site should be pre-lubricated;
⑤ all safety instrumentation instrumentation should be sensitive, accurate and reliable;
â‘¥ crank should be flexible without exception;
⑦ high temperature pump should be preheated before the test run, the temperature should not exceed 500 ℃ per hour temperature rise; pump body surface with a working medium inlet process pipe temperature difference should not exceed 4090;
⑧ set to eliminate the effects of temperature rise connected to provide cooling water.
â‘¡ monitor the operation of the process completely prevent the stuffing box from leaking and replace the stuffing box with a new filler;
â‘¢ to ensure that mechanical seals have a full flush of water, water-cooled bearings prohibit the use of excessive water flow;
â‘£ lubricant do not use too much;
⑤ inspection according to the recommended cycle. The establishment of operating records, including hours of operation, the filler adjustment and replacement, add lubricant and other maintenance measures and time on the centrifugal pump suction and discharge pressure, flow, power input, lotion and Bearing temperature and vibration conditions should be measured regularly recorded.
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