As far as the working principle of the industrial hose pump is concerned, a special rubber hose is generally installed inside the pump, and is rotated and squeezed along the hose through a pair of pressure rollers, so that the medium is transported in one direction without backflow. After the hose conveys the medium, the hose is restored to its original state by the elasticity of the flattened hose and the side guide roller. At this time, a high vacuum is generated in the hose to suck the medium into the lumen again, and then the medium will follow. The pressure roller is squeezed and discharged from the hose. In this way, the medium is continuously sucked in and discharged. The oil drilling hose is mainly used in the oil drilling and production industry. It is a special rubber hose with high strength, high toughness but good flexibility. The maximum operating pressure of the oil drilling hose can reach 70 MPa, so in some places, the high-pressure oil drilling hose is also called a high-pressure hose. The oil drilling hose should be connected by heavy hammer or high pressure joint during installation to ensure its safe and reliable performance. On the afternoon of April 8, 2020, Gao Xidong, Vice Chairman of the Standing Committee of the Municipal Party Committee, and Wu Yupei, Secretary of the Party Development Working Committee, checked fire safety and continued to work. Zhao Hongliang, Chairman and CEO of Litong Hydraulic Technology Co., Ltd., followed the leaders to visit the Litong Exhibition Hall, and gave a brief introduction to the three pillars of Litong Hydraulic Technology Co., Ltd.: industrial hydraulic hoses and fittings, industrial hoses and fittings, compound rubber and Sealing products and their representative products are systematically described. In December 2019, Letone obtained the Lloyd’s refractory certification, indicating that the fire resistance of Letone API 16D hose has been recognized by the industry. In addition, Letone API 16D hose also has the characteristics of equal diameter (total flow), and the effective diameter exceeds the industry standard by about 2 times. Greater fluid flow allows for faster and more efficient control of BOP opening and closing. The leakage current at the connection between the pipe body and the connector is avoided, so the hose has a higher safety factor.
At present, the oil drilling and production wear-resistant hoses produced abroad are expensive, while the drill bits produced in China are of high quality and low price. Therefore, the special wear-resistant pipes produced for oil drilling and production have obvious price advantages and strong competitiveness in the world. Now, the special wear-resistant pipes for oil drilling and production produced by our factory have been exported to the major oil-producing regions in the world such as America, Europe, the Gulf, Russia, Africa, the Middle East, and Southeast Asia. Customers sometimes have problems with broken hoses, so the bonding between the rubbers is very important, the bonding between vulcanized rubbers is usually by the bonding method, that is, the adhesive is applied to the surface of the two vulcanized rubbers, and then The liquid binder polymerizes. Type and composition of adhesive and bonding process. The deeper the degree of cross-linking of the vulcanized rubber, the poorer the mobility of the molecular chain and the more difficult the bonding.
