Solution To Severe Air Blocking Phenomenon When Cip Reflux Pump Is Working

CIP Return Pump is the most commonly used equipment in the oil transportation system. However, its biggest problem is that the suction range is low and it is easy to produce air resistance. At the same time, if the actual flow rate in the pipeline is much different from the rated flow rate, oil and gas will be mixed, which will cause the oil transportation time to be extended exponentially and the electric energy to be wasted exponentially.
The zero-level tank of the oil depot is a horizontal oil tank buried underground, and the CIP return pump is installed on the ground pipeline. When working, the pump sucks the oil from the underground horizontal oil tank into the pump, and the vertical height is the suction range of the pump. When the suction range of gasoline at 20°C exceeds 4.27 meters, it begins to vaporize, and it cannot work normally when the suction range exceeds 4.5 meters.
When the negative pressure suction type is used to transport oil products, the pipeline is in a negative pressure working state. When the residual pressure at a certain point in the pipeline is less than the saturated vapor pressure at the operating temperature of the oil product, the oil product will vaporize in large quantities, causing discontinuous flow or interruption of flow, which is air resistance. Once air resistance occurs, the entire oil transportation system cannot work normally, so a vacuum system must be installed to match it.
The green brand submersible pump immerses the pump body into the bottom of the oil tank, directly pressurizes the oil through the impeller, pushes the oil to the target oil storage tank, and realizes the delivery of oil from the delivery tank or the zero position tank to the vertical tank. Because the oil is transported under positive pressure, the large flow submersible pump will not produce air resistance and there is no suction problem.
The core technology to solve this problem is the submerged motor or shielded motor. There is a gap between the stator and the rotor of the motor, which is about the thickness of an A4 paper. The oil flows through the middle and plays two roles: one is to cool the motor. Almost all motors can only let the liquid flow through the outside of the motor to achieve the cooling effect, thereby ensuring the life of the motor. The characteristics of the submersible pump motor with liquid inside double the life of this motor. Second, the liquid flows through the gap between the stator and the rotor, which has a good lubrication effect on the bearing. The problems of the motor and the bearing have been effectively solved, so that the submersible pump does not require maintenance and the failure rate is extremely low. The service life is up to ten years and the shelf life is three years.
The shielded motor of the Green Brand submersible pump adopts the latest design, with lower temperature rise, longer life, and completely independent intellectual property rights. The manufacturer, Tianjin Gama Machinery Factory, is the only unit in the country that specializes in the research, development, design, and production of shielded motors for submersible pumps.
In addition, Gama Machinery Factory continues to develop new products and has launched several series and dozens of submersible pump varieties. Submersible pumps of various specifications and models can adapt to different flow and head requirements, so that submersible pumps can work within the high-efficiency range, with more reasonable selection and more energy-saving use. Special designs can also be made according to the actual needs of users to provide tailor-made services. In addition to standard submersible pumps, large-flow submersible pumps, high-lift submersible pumps, and variable-frequency submersible pumps, crane pipe submersible pumps suitable for railway trestle oil unloading have also been launched. In terms of head and flow, the Green Brand submersible pump fills the gap in the global submersible pumps and launches a super-high head series of submersible pumps with a head of up to 100 meters and a super-large flow series of submersible pumps with a maximum flow of more than 80m3/h. The submersible pump requires the minimum liquid level in the oil tank to be no less than 400mm, which increases the effective oil storage capacity of the oil tank. Its applicable media include gasoline, diesel, kerosene, and there are also submersible pumps specially designed for special media, such as 100% methanol, 100% ethanol, more than 15% methanol gasoline, isopropanol, ethyl acetate, toluene, etc. The warranty period of the Green Brand submersible pump is three years, which is an unmatched advantage of submersible pumps in the same industry.