Latter, our country government put forward to watch construction with developing scientificly " resource is managing model, the environment is friendly model " after national economy guidelines of the society, what because discharge is measured,involve content shedding is metric, aborning it is main news source; Go up in management the basis that it is evaluation of science of benefit assessment, energy-saving, environmental protection. Apodeictic, in above respect it is having the place that hold the balance, times get attention.
Discharge is quantity of a derivation, the factor that affects it is more, be like: The requirement of environment of the character that the content sex of the fluid, fluid flows, spot, craft, installation, safeguard, economy... etc. The purpose is satisfied with a kind of appearance afore-mentioned all requirements are impossible. So corresponding appearance principle amounts to more than 10 kinds, the type is close 200 much, appearance of avery kind of has its actor drawback, effect is produced only possibly in a certain specific domain, meter each one does his job, user each takes what he needs, it is OK to still do not have a kind of appearance be the champion, replace other all appearance.
Oneself express a few views with respect to the development trend of flow meter, heat. Skimming over the surface, consult for everybody.
Develop a tendency
Evaluate a report to show according to professional net, the sale of flow meter rises the 3.5 billion dollar 2007 from the 3.1 billion dollar 2002, year increase rate still is amounted to 2.6% . Among them traditional appearance (reduce expenditure, cubage, turbine, rotor) grow to lose - 2.2% , 2002 1.643 billion, 53% what take total flow appearance; 2007 1.505 billion, occupy 43% , and new-style appearance (family name of electromagnetism, supersonic, family) year increase rate is made an appointment with 6.2% , 2002 1.457 billion, occupy 47% ; Added 2007 for 2.019 billion, occupy 57% . Among them:
Year increase rate 2002 2007
Electromagnetism 1.92% 5.9 100 million 649 million
Supersonic 10.4% 3.73 100 million 612 million
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