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博文

目前显示的是 十月, 2020的博文

Comparison Between Magnetic Centrifugal Chiller with Screw Chiller Difference Point and Advantage

  It is understood that the   magnetic bearing chiller   is a new type of centrifuge equipment appearing in the international market. Compare to screw chillerIts main characteristics are fast speed, low noise, energy saving, intelligent management, in line with the trend of green development, and the magnetic levitation technology is in the world's leading level. Magnetic levitation  compressor . bearing sensors detect bearings 6 million times per minute . make sure that the maximum offset of the shaft does not exceed 7 microns Automatic control software can compensate vibration error automatically . bearings up to 48000 rpm, smaller size Only 2a-4a starting current has no impact on the power grid Centrifugal compressor, magnetic bearing without lubricating oil, variable frequency drive, integrated digital control. Magnetic compressor 9 characteristics 1.The unit controls the water temperature to an accuracy of ±0.1 °C, and the general unit temperature is ±1 °C. It can realize the

The Difference of Three Types Heat Exchanger in Hot Water unit

  In general, tube heat exchanger in hot water unit has long life span.   Shell and tube heat exchanger structure: The shell and tube heat exchanger is composed of shell, heat transfer tube bundle, tube sheet, baffle plate (baffle plate), and tube box. The shell is mostly cylindrical with a tube bundle inside, and both ends of the tube bundle are fixed on the tube plate. There are two types of heat transfer: hot fluid and cold fluid, one is the fluid inside the tube, called the tube side fluid; the other is the fluid outside the tube, called the shell side fluid. In order to improve the heat transfer coefficient of the fluid outside the tube, a number of baffles are usually arranged in the tube shell. The baffle can increase the velocity of the fluid in the shell side, make the fluid pass through the tube bundle multiple times at a specified distance, and improve the turbulence of the fluid. The heat exchange tubes can be arranged in an equilateral triangle or square on the tube plate.