Screw compressors from Dunham-Bush International
- Issue: Vol 89, No 8 (2000)
- Pages: 16-18
- Section: Articles
- URL: https://journal-vniispk.ru/0023-124X/article/view/106341
- DOI: https://doi.org/10.17816/RF106341
- ID: 106341
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Abstract
In the 1970s, screw compressors began to be widely used in refrigeration. The rapid growth in the production of compressors of this type and the expansion of their range are due to the following advantages
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Rice. 1. Compressor type LSC with six-tooth rotor drive with built-in oil pump with spool position indicator (see table 1 for dimensions)
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Rice. 2. Compressor type LSC with four-tooth rotor drive without built-in pump with spool position indicator
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Fig.3. Compressor type LSC with adapter case
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Rice. 4. Compressor type MSC in section: 1 - injection; 2 - oil separator; 5 - leading rotor (driven rotor is not shown); 4 - steam entry into the intermediate cavity; (economizer); 5 - tape electric heater of the lower part of the body; 6 - steam outlet from the compression chamber into the discharge path; 7 - oil temperature sensor; 8 - oil filter; 9 - gas filter (replaceable); 10 - check valve; 11 - suction; 12 - built-in electric motor; 13 - oil reflector; I - discharge pressure; II - oil; III - intermediate suction pressure.
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Rice. 5. Scheme for controlling the capacity control spool: SVM - solenoid valves; RV - control valves; FG - gas filter; FM oil filter; PC - relief valve
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