L28/32 diesel engine parts high pressure oil pipe assembly: It is mainly divided into use and oil pipe. The oil pipes used in the coal industry mainly include hydraulic support hoses, and the oil industry shallow sea submarine oil pipelines have been produced in China, but floating or semi-floating Type oil pipelines and deep-sea submarine oil pipelines still rely on imports. The tubing distinction can be seen from 5 aspects: manufacturer code, drawing number font, shape distinction, whether there is identification of raw material, whether there is spiral wave.

Purpose of high pressure oil pipe assembly for marine diesel engine parts

(1) Coal industry The oil pipes used in the coal industry mainly include hydraulic support hoses. In recent years, the pressure requirements of some coal mine hydraulic supports have been increased, and some steel wire braided rubber hoses cannot meet their performance requirements, requiring the use of steel wire wound tubing. In addition, in order to prevent coal dust pollution and improve production safety during underground mining in coal mines, the types of coal mine oil pipes have been increased, such as coal seam water exploration hole sealer telescopic oil pipes, which are used to inject water into coal seams before fully mechanized mining in underground coal mines , Grouting and other operations.

(2) Petroleum industry China’s offshore oil development strategy in the 21st century proposes to focus on the development of offshore and shallow sea oil fields. Therefore, the petroleum industry’s shallow seabed oil pipelines have been produced in China, but floating or semi-floating oil pipelines and deep sea oil pipelines The oil pipeline still relies on imports.