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Diesel pump correct installation steps and precautions
The correct installation and use of diesel pumps in order to ensure the life of diesel pumps, Xiaobian here to sort out the correct installation of diesel pumps and precautions in use. Diesel pump First, the diesel pump installation steps 1. Check the diesel pump and motor should be no damage. The installation height of the diesel pump, together with the hydraulic loss of the suction pipe and its speed, shall not be greater than the allowable suction vacuum height specified in the sample. The basic size should be consistent with the installation of pump size. 2. Put the diesel pump on the concrete foundation with the anchor bolts, correct the level by adjusting the wedge pads in between, and tighten the anchor bolts properly to avoid walking. 3. Pour concrete after foundation and pump foot. After the concrete is dry, tighten the anchor bolts and recheck the level of the pump. 4. Correct the concentricity of motor shaft and pump shaft. So that the two axes in a straight line, coaxiality on the outer circumference of the two axis coaxial tolerance of 0.1mm, the gap along the circumference of the end gap tolerance of 0.3mm (in the inlet and outlet pipelines and test again after the check again , Still should be stationed in the above requirements). 5. After checking that the motor turns to the same direction as the pump, install the coupling and coupling pin. 6. In and out of the water pipe should be another support stand, not native pump support. 7. Diesel engine pump and pipe junction between the table should ensure a good air tightness, especially the inlet pipe, we must ensure strict airtight, and the device should not have the possibility of storing the air. 8. If the diesel pump is installed above the water level, in order to start the pump, the valve can be installed at the bottom. Vacuum water diversion can also be used. 9. After the diesel pump and outlet pipe, usually need to install the gate valve and check valve (head less than 20 meters may not), check valve installed in the valve behind. The installation method mentioned above refers to the pump unit that is not equipped with a common base. 10. Install a pump with a common base and calibrate the level of the unit with a wedge-shaped horn between the base and the concrete foundation. Then pour concrete between them. The installation principles and requirements, and do not match the common base of the same unit. Second, the use of diesel pumps Notes 1. Before starting, turn the pump rotor should be smooth and uniform. 2. Close the outlet valve to the pump Note (such as without a bottom valve vacuum pump is used to draw water) to ensure that the pump is filled with water. 3. If the diesel pump is equipped with a vacuum gauge or a pressure gauge, turn off its spin-on connection to the pump and start the motor, wait until the speed is normal and then open it, and then gradually open the outlet valve, if the flow is too large, Small gate valve to adjust; the other hand, the flow is too small. 4. Tighten the compression nut on the packing gland evenly to make the liquid leak into the drop shape, meanwhile, pay attention to the temperature rise in the packing cavity. 5. When stopping the operation of the diesel pump, first close the vacuum gauge and the cock on the pressure gauge and the gate valve on the discharge pipe, then turn off the power to the motor, and if the ambient temperature is low, Quartet plug open, remove the remaining water to avoid cracking. 6. Do not arbitrarily increase the pump speed, but can reduce the speed of use. 7. Pump bearings should not exceed the maximum temperature of 75 ° C. 8. Lubricating the number of calcium-based butter bearing to bearing body space 1 / 3-1 / 2 is appropriate. 9. Filler wear may be appropriate compression packing gland, if excessive wear should be replaced. 10. Check 眹 shaft parts regularly, pay attention to temperature rise of motor bearings. 11. During operation, if any noise or other abnormal sound is found, stop immediately and check the cause and eliminate it. 12. Long-term stop using, should be disassembled water pump to dry the other pieces of water, coated with anti-rust oil in the processing surface custody. 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:)