The sensor can effectively monitor and warn the disaster-causing factors by collecting and transmitting the measured environment information. The sensor with graphene material as the core has better stability, sensitivity, rapid response and durability than traditional sensors. With the development of Internet of Things, graphene sensor is expected to be safe Internet of Things sensing technology and safety monitoring and early warning in China. And other aspects play a greater role. Therefore, the following suggestions are proposed:
First, around the local security needs, market-oriented, targeted layout of graphene sensor industrialization application direction, focus on tackling, establish relevant access standards, find the breakthrough, and wait for opportunities.
The second is to develop a technical innovation catalogue and technology breakthrough roadmap, and strengthen key technologies such as green preparation technology, large-scale production technology, and downstream high-end applications, focusing on the cultivation of graphene and semiconductor materials composite technology, redox technology, liquid phase stripping technology, etc. The key preparation process technology of graphene sensor.
The third is to build a public service platform, increase investment and policy support, and use the power of the market to regulate the development of the graphene sensor industry. Actively promote the development of national standards for graphene sensors, build industry technical standards, control the industry's right to speak, and drive the formation of the graphene sensor industry chain.
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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Fuyuan Marine Accessories Co., Ltd , https://www.fuyuanmarineparts.com