Share

THE < MINISCREW >: A NEW SCREW COMPRESSOR CONCEPT FOR THE LOWER CAPACITY RANGE.

Author(s) : LUNDBERG A.

Type of article: Article

Summary

THE AUTHOR DESCRIBES A NEW RANGE OF VERTICAL SHAFT, DOUBLE ROTOR, SCREW COMPRESSORS CAPABLE OF A VERY WIDE RANGE OF CONDITIONS. CAPACITIES OF 125 TO 500 KW AT 263, 298 K (-10, + 25 DEG C), USING R22 ARE COVERED BY ONLY THREE ROTOR SIZES, THE SMALLEST BEING OFFERED WITH FOUR DIFFERENT GEAR RATIOS IN A BUILT-IN DRIVE. THE INCLUSIVE GEAR BOX AND COMPRESSOR ARE DIRECTLY BOLTED TO THE DRIVE MOTOR. THE UNITS WILL OPERATE UP TO A 26 BAR OUTLET PRESSURE ENABLING HEAT PUMP UNITS TO GIVE 358 K (85 DEG C) WITH R12 AND EVEN HIGHER WITH R114. THERE IS A CAPACITY CONTROL BYPASS USING A PISTON VALVE ARRANGEMENT FOR CONTROL DOWN TO 25% OF FULL CAPACITY. ALL UNITS ARE EQUIPPED WITH ELECTRONIC CONTROL SYSTEMS. VARIOUS STANDARD PACKAGES ARE AVAILABLE FOR BRINE AND WATER COOLING. D.W.H.

Details

  • Original title: THE < MINISCREW >: A NEW SCREW COMPRESSOR CONCEPT FOR THE LOWER CAPACITY RANGE.
  • Record ID : 1984-0532
  • Languages: English
  • Source: Scand. Refrig. - vol. 12 - n. 4
  • Publication date: 1983/08
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (4)
See the source

Indexing