IH pump】 ã€IH chemical pump is a single-stage single-suction cantilever centrifugal pump. Is the national machinery industry to replace the F-type corrosion-resistant centrifugal pump replacement products. Now to introduce the chemical centrifugal pump start, run and stop operating steps. Chemical Centrifugal Pumps Chemical Centrifugal Pumps Starting, Running and Stopping Operation Steps 1. Preparations before starting (1) Clean the pump and the site before starting. ⑵ Check the amount of oil in the bracket is appropriate (oil level in the centerline of the oil level meter about 2mm) Oil level gauge is intact. ⑶ before the coupling check the original motive steering, and the pump steering arrow consistent, then a good coupling. â‘· After the mechanical seal and coupling are installed, the pump shaft can be conveniently rotated by hand. There should be no rub phenomenon and the shield of the coupling should be installed. (5) The pump is used under sucking condition, the pump should be filled or evacuated before start-up; the pump should be used under the condition of recharging, the applied liquid should be filled before the start of the pump to drive off the empty place in the pump, . ⑹ Check whether the foundation bolts are loose before starting. Whether the gland is skewed, and the supply of lubricating oil and cooling water. 2, start â‘´ close the import and export pressure (or vacuum) meter and the water valve, (if there is bypass pipe, this should also be closed.) Start the motor (preferably the first move to confirm the pump to the correct direction before the official operation ), And then open the inlet and outlet pressure (or vacuum) meter, when the pump reaches the normal speed, and the meter indicates the corresponding pressure, then slowly open the outlet valve, adjust to the required conditions. In the discharge pipe is closed, the pump continuous working time, can not exceed 3 minutes. ⑵ start the process should always pay attention to the power of the prime mover readings and pump vibration, the number of vibrations should not exceed 0.06 mm, the determination of the site is the bearing seat. ⑶ seal: mechanical seal should be no leakage, fever, packing seal should be continuous trickle state. 3, running â‘´ often check the pump and motor fever (bearing temperature rise should not exceed 75 ℃) and the fuel gauge oil situation. (Generally every 1500 hours of operation, to replace all the lubricating oil). ⑵ can not use the suction valve to regulate the flow, to avoid cavitation. ⑶ pump should not be less than 30% of the design flow of continuous operation, if you must continuous operation under this condition, you should install a bypass pipe at the exit, discharge excess flow. â‘· pay attention to whether there is no noise pump operation, such as the discovery of abnormal state, should promptly eliminate or stop inspection. 4, stop â‘´ slowly shut down spit outlet pipe gate valve (if the pump is used in case of recharging, but also close the suction pipe gate), and close the switch of various instruments. ⑵ cut off the power. ⑶ if the seal with the external liquid, but also close the diversion valve. â‘· If the ambient temperature is below the liquid freezing point, put the net liquid pump to prevent cracking. ⑸ If you do not stop for a long time, in addition to the corrosive liquid in the pump net, the parts should be disassembled clean, especially the sealed chamber. It is best to remove the pump after cleaning and re-installed, in addition to anti-rust oil and closed pump import and export, but also regular inspections. Further Reading: pump valve pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro letter: 2355962924) http://beng.liuti.cn/ (Hotline : 400-6030-811)