Shell and Plate Heat Exchanger
A shell and Plate Heat Exchanger is typical heat exchanger consists of a series of stacked plates and enclosed in a container shell. The plates are arranged in a chevron pattern, with each plate having its own inlet and outlet ports. Heat is transferred between the two fluids as they flow through the plates and shell respectively.
Shell and plate heat exchangers are used in particularly industrial plant. They are those require larger surface area and higher heat transfer coefficient, while at the same time, of high temperature and pressure.
In addition to their efficiency and compact size, shell and plate heat exchangers are also flexible in terms of material selection. Constructing material could be carbon steel, AISI 304, AISI 316L, AISI 904L, 254 SMO, Ti, Hastelloy, and more based on various operations.
Features of shell and plate heat exchanger are:
Gasket free
Stable and safe structure
Special seal structure for preventing media by-pass
High heat transfer efficiency
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However, in these hundreds of companies, quite a few companies have low output, and some companies can only equip their own weighing instruments. These companies are basically not competitive in the market. The products of only a few companies in China not only have large output, but also have stable quality. They are more perfect from the internal structure to the appearance, reach the advanced level of similar international products, and have strong market competitiveness.
China's production of weighing instruments mainly used by static weighing instruments has reached the advanced level of similar foreign products in terms of measurement requirements, technical performance, functions and appearance, and is lower in price than similar foreign products and has strong export potential. Automatic weighing instruments used in automatic weighing instruments have a certain distance from similar foreign products, especially in dynamic stability. China's imported weighing instruments are mostly such products.
Experts in the industry believe that in the next few years, the development trend of weighing instruments is to develop high-speed, high-sensitivity, high-accuracy and high-reliability in terms of performance; in terms of functions, AC/DC dual-purpose, multi-functional Or special functions, rich interfaces, easy to connect with the direction of computer development; in terms of varieties, dedicated, dynamic, automatic online weighing instruments and weighing computers will have greater development; in structure, to miniaturization, portable, Car-type, modular, modular, embedded, wall-mounted direction; appearance is more beautiful, to humanity, personalized design direction. The simple, moderately priced, AC-DC weigh meters will be the mainstream of market sales.
Industry Expert: Development Trends of Weighing Instruments
In recent years, China's weighing instrument industry has developed rapidly. At present, there are nearly 100 manufacturers of weighing instruments in China, with output from 11,000 units in 1996 to about 100,000 units in 2002. Production has increased by almost 10 times in several years; the output value in 2002 was 130 million yuan. It increased by nearly 30% in 2001.