The thin film evaporator technology for coatings jointly developed by Shanghai Huasheng Chemical Co., Ltd. and Beijing Xinte Technology Co., Ltd. has passed the appraisal of the expert group. Experts agree that this technology has filled the domestic gap.
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The installation is as follows.
1. Installation Steps
valve location into consideration;
a) Sensor stays away from mechanical vibration source, for example, pump. Use flexible
pipe to connect meter with pipeline if inevitable. The housing of meter must be standalone,
out of touch with any other device. There must be 3 times the size of sensor between 2
sensors if there are many flow meters on the same pipeline, to avoid resonance.
b) Do not install sensor on pipeline that easily expands with hot and contracts with cold,
especially near expansion joint, which leads to a worse stability.
c) Sensor stays away from industrial electromagnetic field, such as large generator and
transformer, better 5m at least. Such device influences the performance of drive coil and
pickoffs. Make sure magnetic field intensity less than 400A/m.
d) Sensor shall be installed on lower pipeline, to be easily full of fluid.
f) Build a sunshade if the meter is under direct solar radiation.
g) Keep the meter from corrosive liquid.
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In 2002, China promulgated the mandatory standard for the Limitation of Hazardous Substances in Solvent-based Wood Coatings for Interior Decoration Materials, which strictly limits the content of free TDI in paints. In order to meet the standards, many domestic coating companies have to purchase a large number of imported thin film evaporators at relatively high prices. The results of Shanghai Huasheng Chemical Company and Beijing Xinte Technology Co., Ltd. are conducive to reducing the cost of the coatings industry in China and enhancing the competitiveness of the market.
Mr. Zhao Zhaonian, a paint industry leader who has been engaged in paint research for 59 years, said: "The application of thin film evaporators in coatings is a big breakthrough. It has been used in foreign countries 50 years ago, but it is a blank in China. Now we use After more than three years of successful research, it has not cost the country a penny, and catching up with the international level, has an epoch-making significance for the development of China's coatings industry."
a) Choose correct installation site, taking installation area, pipeline, transmitter location &
b) Install the meter according to direction mark on sensor;
c) Install the sensor & transmitter on pipeline;
d) Connect transmitter & sensor with 9-pin cable;
e) Start.
e) Make sure Ex-mark meet application requirements if in hazardous area.