Experts from the appraisal committee said that the new technology of radiant heating has changed the traditional impression of shipbuilding and painting operations, and is the perfect application of advanced gas radiant heating technology in the shipbuilding coating process. And clearly pointed out in the appraisal opinion: "The project has independent intellectual property rights and has formed the patent technology of 'gas and radiation heating system for ship and offshore spraying sites'. The overall technology has reached the international advanced level. The research results have adopted a number of safety and Control technology measures, mature technology, safe and reliable, have great economic and social benefits for improving the level of China's shipbuilding technology and promoting national energy conservation and emission reduction."
Adhering to the concept of scientific development, sustainable development, and innovation, as early as the planning and construction of the coating workshop of the Haixi Bay Shipbuilding and Repairing Base, Beichuan Heavy Industry began to explore the use of soft radiant heating technology to replace the traditional heating mode of the painting workshop. . Pursuing environmental protection, green, improving efficiency, quality, and tackling the problem with innovative thinking, to achieve energy saving, emission reduction as the goal to conduct research, and ultimately become a dream. The project was approved by the group company in September 2008 and put into operation from 2008 to 2009. So far, two heating periods have been safely operated, realizing the substantial breakthrough in replacing the high-carbon fuel in the modern large-scale ship repairing ship base. . The project can achieve energy savings of more than 50%, reduce carbon dioxide emissions by more than 75%, and reduce heating costs by more than 50%. Greatly reduce the pollution of the environment. At the same time, due to the improvement of heating efficiency, the curing time of the paint is shortened to a large extent, and the production efficiency of the painting workshop is improved.
The research and development of new radiant heating technology is a practical measure taken by Beichuan Heavy Industry to implement the requirements of the group company and to save energy and reduce emissions. Undoubtedly, the application and promotion of this new technology is a big step for Beichuan Heavy Industry on the road of “green shipbuildingâ€.
Welded Bed Plate For Flanges Of Ship Pipe
The flange welded single-sided seat plate is mainly installed on the top, side wall and bottom of the cabin or cabinet as the entrance and exit of the cabin or cabinet. Valves, accessories or pipes can be installed directly on the single-sided seat plate.
Flange welded single-sided seat plate is suitable for seawater, fresh water, oil, air and steam pipelines below 300 °C. The commonly used nominal diameter is 15~150 mm, and the nominal pressure is lower than 1.6 MPa. The shape of the single-sided seat plate is similar to the corresponding lap-welded Steel Flange.
Flange welded double-sided seat plates are generally used when pipelines pass through decks and tanks, and the two sides of the seat plate are respectively connected to valves, accessories or pipes.
Compared with the single-sided seat plate, the double-sided seat plate has an extra shoulder and double-sided mounting stud bolts. The outer diameter of the shoulder is 10~20 mm larger than that of the corresponding flange, and the thickness of the shoulder is 6~12 mm.
Its scope of application and other structural dimensions are basically the same as those of the single-sided seat plate.
The manufacturing and installation methods of the flange-welded double-sided seat plate are basically the same as the single-sided seat plate, but when the screw holes are drawn, the positions of the upper and lower screw holes of the seat plate must be staggered from each other and must not overlap; deck or bulkhead The diameter of the hole on the top is 2~3 mm larger than the diameter of the seat plate.
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