(Nakai, Y.)Ĭleaning and can end chamfering special machine MSCS-04 This welding machine is useful for welding SUS piping as well as carbon steel piping. The HIDIC 08 is used as the controlling computer. The working procedure and the effect by using this welding machine, and the application to nuclear power plants and the other industrial field are outlined. The construction of this welding system, the main specification of the apparatus, the welding procedure in detail, the electrical source of this welding machine, the cooling system, the structure and handling of guide ring, the central control system and the operating characteristics are explained. The function of this welding machine is to inspect the shape and dimensions of edge preparation before welding work by the sense of touch, to detect the temperature of melt pool, inspect the bead form by the sense of touch, and check the welding state by ITV during welding work, and to grind the bead surface and inspect the weld metal by ultrasonic test automatically after welding work. This machine is utilized for long distance pipe lines, chemical plants, thermal power generating plants and nuclear power plants effectively from the viewpoint of good quality control, reduction of labor and good controllability. Yoshida, Kazuhiro Koyama, Takaichi Iizuka, Tomio Ito, Yoshitoshi Takami, Katsumi.Ī remotely controlled automatic special welding machine for piping was developed. International Nuclear Information System (INIS) In the world today 450 km of pipelines are subject to ice cleaning method.Ice cleaning method is simple The method can be applied in urban pipeline systems of drinking water supply for the diameters of 100—600 mm, and also to diversion collectors. Cleaning pipelines using ice can be considered one of the methods of trenchless technologies, being a significant alternative to traditional methods of cleaning the pipes. The degree of pollution of the pipeline was estimated by the volume of the remote sediment on 1 km of pipeline. In particular, when you clean drinking water system the ice applied should be hygienically clean and meet sanitary requirements.In pilot projects, in particular, quantitative and qualitative analysis of sediments adsorbed by ice is conducted, as well as temperature and the duration of the process. There are specific requirements to its quality. It is noted that ice cleaning requires careful planning in the process of cooking ice and in the process of its supply in the pipe. The equipment for performing ice cleaning is presented, its technological options, terms of cleansing operations, as well as the volumes of disposed pollution per unit length of the water supply and drainage pipelines. The co-authors emphasize that the use of ice compared to other methods of pipe cleaning has a number of advantages due to the relative simplicity and cheapness of the process, economical efficiency and lack of environmental risk. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of drainage pipes. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. Directory of Open Access Journals (Sweden)įull Text Available The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems.
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