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What should be paid attention to when using high temperature

 
When conveying oil with temperature higher than 120 degrees (such as heat conduction oil and high temperature oil), it is best to use high temperature oil pump to transport, because the pump is made of special materials with good high temperature resistance. So what should be paid attention to when using it? Haina Pump prompts you the following points:
1. Switch on the power supply and turn on the switch of the relevant instrument; When the pump reaches the normal speed, and the instrument shows a considerable pressure, gradually open the gate valve on the output pipeline, and adjust to the required condition. When the gate valve on the output pipeline is closed, the pump can not work for more than 3 minutes continuously;
2, because of the cooling and lubrication of gear pump bearings is to be transported by the medium. Therefore, no idle operation is absolutely prohibited. At the same time to avoid in the middle of the work after power failure to start the time and space caused by the operation. At the beginning of operation, the equipment in the production process is slowly heated to 100-130 degrees, external lubrication gear pump, high temperature heat conduction oil pump and keep running at this temperature, dehydration and degassing to complete evaporation of water in heat conduction oil, the equipment is heated to the operating temperature;
3, be transported in the medium, if contain solid particles, pump inlet to add filter net: such as containing ferromagnetic particles, need to add magnetic filter. In the process of starting, always pay attention to the motor power reading and vibration, vibration value is not more than 0.6mm, if there is abnormal should be stopped for inspection;
4, the transmission medium and its temperature should be within the range of gear pump material allowance. Gear pump temperature < 280℃, the maximum working pressure of 4MPa, density is not greater than 1840kg/m3, viscosity is not greater than 30cm2/S without hard particles and dimension of the liquid. Special working conditions shall be strictly stipulated in the contract agreement. 3-4 hours before running, turn off the equipment after heated to operating temperature of oil pump, check the alignment of the pump shaft and motor shaft coupling, pump shaft and motor shaft deflection should be controlled within the scope of the permit, pump shaft by hand rotation should be flexible and convenient no vibration, hot oil pump can not meet the above requirement, heat pump, should be adjusted again;
5, oil pump for the transport liquid is easy to precipitate the product of the medium, after use should be cleaned in time, drain the pump liquid. When the ball bearing on the impeller side is installed, the dustproof cover side of the high-temperature heat conduction oil pump should be installed toward the impeller, and heat conduction oil should be injected for lubrication before starting. The ball bearing on the side of the coupling shall be installed with compound calcium based high temperature grease. When the bearing is re-installed, the dustproof cover side of the hot oil pump shall also be installed toward the impeller side, and the grease shall be filled during installation.
6. After each ball bearing runs for 3000 hours, it must be removed and cleaned with diesel oil, and checked for damage. If there is damage, it must be replaced with a new bearing;
7, hot oil pump is suitable for conveying high temperature liquid without solid particles. In order to ensure the full play of the performance of the oil pump and have a good service life, our company reminds customers to operate correctly according to the above items to extend the service life of the high-temperature heat conduction oil pump.
Oil pump, heat conduction oil pump in Botou Haina Oil Pump Co., LTD http://www.hinapump.com
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