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Vertical single-stage centrifugal pump installation and precautions
The correct installation and use of pumps in order to ensure the service life of the pump and normal operation, Xiaobian tell you about the vertical single-stage centrifugal pump installation and use precautions. Vertical single-stage centrifugal pump First, the vertical single-stage centrifugal pump installation instructions 1, the installation of pipe weight should not bear on the pump, otherwise vulnerable to ring pump; 2, pump the motor is the overall structure, So the installation is very convenient; 3, before installing the pump should be carefully checked whether there is any impact on the pump runner pump running hard material (such as rocks, iron sand, etc.) in case the pump is running back Over-current components; 4, the installation must be tightened anchor bolts, and each interval in fact, should check the pump during the passage to prevent its loosening, so as to avoid the pump start violent vibration and the performance of the impact; 5, for easy maintenance and safety , Install a regulating valve on the pump inlet and outlet piping and install a pressure gauge near the pump inlet and outlet. For high lift, in order to prevent water hammer, install a check valve in front of the outlet gate to cope with the sudden drop Electricity and other loss of power accidents, so as to ensure that the pump is running under conditions to increase the service life of the pump; 6, the pump for suction occasion, should be equipped with a foot valve, and the inlet pipe should not have too many corners, When there is no leakage, leakage phenomenon, so as not to affect the suction pump performance; 7, in order not to make impurities into the pump and block the flow channel affect the performance, should be installed in front of the pump inlet filter; Rotor components, there should be no friction sound or stuck phenomenon, or the pump should be disassembled to check the reasons. Second, the use of vertical single-stage centrifugal pump precautions Preparation 1, Hand pulled the coupling, the impeller should be no card-grinding phenomenon, rotating flexible; 2, open the inlet valve, open the exhaust valve so that the liquid filled the entire pump chamber , And then close the exhaust nozzle; 3, such as the delivery of hot liquid, should be preheated before starting, heating rate of 50 ℃ / h, the pump is preheated by the continuous circulation of liquid delivered to achieve, so that all parts of the heated uniform; 4, should be hand-driven pump a few laps to make the lubricating water into the mechanical seal face; 5, the motor, the steering is correct. Start and run 1, fully open the inlet valve, close the discharge pipe door; 2, connect the power, when the pump reaches normal speed, gradually open the valve on the discharge pipe and adjust to the required conditions; 3, observe the instrument Reading, check the shaft seal leakage, the normal timing of mechanical seal leakage 3 leak / min, check the motor, the bearing temperature ≤ 70 ℃, if abnormal circumstances should be promptly handled. Stop 1, gradually close the discharge pipe valve; 2, close the inlet valve; 3, such as the ambient temperature is below 0 ℃. Pump liquid should be depleted, so as not to freeze the water pump; 4, such as long-term disabled, the pump should be disassembled and cleaned, packaging and storage. Further Reading: pump valve pipe fittings Exhibition Water Expo Xiamen exhibition of marine equipment Internet + Forum Yiwu Fair 2016 exhibition mold top ten brands of the Internet information industry (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)