Simulation Of High Pressure Water Jet Nozzle And Design Of Carry Equipment

Using high pressure water jet cutting equipment submarine pipeline of weight layer for the offshore oil industry has an important significance. Compared with the existing cutting equipment, abrasive jet cutting with high efficiency, good safety and low failure rate and other advantages. At present, some countries have developed a series of products, and has been used in actual production over a decade, but few domestic research, there is no corresponding underwater cutting equipment.The main purpose of this paper is to study the sea floor can be used to design a high-pressure water jet cutting submarine pipeline equipped with layers of concrete with heavy equipment, and abrasive cutting nozzles for underwater simulation carried out its internal structure is optimized. The main research methods and processes are as follows:Analysis of the underwater jet cutting method of concrete and steel mesh, and the main parameters of jet cutting is analyzed and calculated, including the fluid parameters, such as target distance and operating parameters for the design of equipment to provide a theoretical basis; by CFD software 100m water depth conditions, the single factor method in all important parameters of the nozzle is simulated in all aspects of integrated factors, and ultimately determined under the conditions of abrasive nozzle submerged structure.Analysis of underwater high-pressure water abrasive jet submarine pipeline to complete the layer of concrete cutting weight. First of all, in a certain parameter conditions, the broken concrete; then change the parameters of the shearing of steel mesh.The structural design of high-pressure jet equipment. Jet on the layout of equipment and implementation of a variety of hydraulic control components, the main structure has three main components:axial travel agencies, travel agencies ring, high pressure sprinkler system. Taking into consideration all the requirements based on the design of a high pressure water abrasive cutting nozzle, and a number of dimensions is analyzed. Water under high pressure abrasive water jet cutting equipment design requirements for the overall program of research, the overall design of cutting machines, and analyzed the works. In the overall scheme based on the host machine, hydraulic system design of the program.High pressure water jet cutting machines of the main structure were studied, including: static analysis of the system and key components of the finite element analysis (nozzle body, the clamping rod and ring guide.) To further optimize the design of the structure to provide a theoretical basis.