Hose connection method under high pressure
2022-04-28 09:01:28
Super Hercules rubber hose is our company's signature hose. Since the heavy industry industry cooperated with our company in 2014, our company has provided 10,000 meters of high-pressure pipes, crusher pipes, etc. every year. With the development, the demand for crusher pipes is also increasing. It is understood that since the use of our company's hoses, the probability of oil leakage, blasting and other common hose phenomena is very small, and the average service life of each hose increases by 30 to 45 days. Pipeline conveying steam at 180 degrees Celsius generally uses rubber high-temperature and high-pressure steam hoses. The inner and outer layers of the hose are made of EPDM rubber, and the middle is braided with one or more layers of steel wire, which can withstand a maximum temperature of 200 degrees Celsius. In addition, its working pressure can also be increased according to the number of steel wire braided layers used in its reinforcement layer, and the maximum working pressure can withstand a working pressure of 20Mpa and a burst pressure of 170Mpa.
In the process of oil drilling, we can use rotary drilling technology to deliver large volume of fluid mud to the drill bit through high pressure, and use rotary drilling hoses and hose assemblies as flexible joints in the mud delivery pipeline. The rotary drilling hose is used between the top of the standpipe and the upper and lower swivel joints, and the marine mud delivery hose is used for the high pressure mud delivery hose between the barge and the offshore drilling platform. Litong Hydraulic Technology Co., Ltd. has been committed to technology research and development and innovation. Litong Hydraulic's PTFE rubber-plastic composite multi-functional hose products have strong adaptability, and its high temperature resistance, corrosion resistance, grease resistance and high pressure resistance make it suitable for use in chemical, food and other industries. The working environment varies widely. For some environments where the temperature does not exceed 100 °C, you can choose UPE rubber-plastic composite multi-functional hose, which has the advantage of low price.
UPE material, that is, ultra-high molecular weight polyethylene, is a thermoplastic engineering plastic with a molecular weight higher than 1.5 million. With a molecular chain length of 10-20 times that of high-density polyethylene, longer molecular chains (higher molecular weight) give UPE materials the main advantages of toughness, wear resistance and stress crack resistance, because it is polyethylene One, UPE also has lubricity, chemical resistance and excellent electrical properties, and its successful development is generally regarded as one of the top ten scientific and technological achievements in the 20th century. When the working pressure reaches a certain condition, the connection method of the hose will increase the safety requirements. In the state of high pressure, flange connection is usually used. Our common flange connection methods are mainly divided into two types, one is a general high-pressure flange, and the other is a high-pressure self-tightening flange. For scenarios with high safety requirements, high-pressure self-tightening flanges are usually used. Flanges are usually standard parts, and there are also non-standard parts. The flange and the flange root must be used together, and are generally connected by welding.
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