Screw compressor

A screw compressor includes a compressor body and a shell and tube heat exchanger for cooling of a compressed air discharged from the compressor body. A tube (11) provided in the tube heat exchanger has both ends (11a, 11b) each having a cylindrical shape, and a center part formed as a multi-lobate...

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Bibliographic Details
Main Authors TACHIBANA MICHINOBU, FUJIMOTO HIDEKI, KATANO ISAO
Format Patent
LanguageChinese
English
Published 10.04.2013
Subjects
BLASTING
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION
HEAT EXCHANGE IN GENERAL
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
WEAPONS
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Summary:A screw compressor includes a compressor body and a shell and tube heat exchanger for cooling of a compressed air discharged from the compressor body. A tube (11) provided in the tube heat exchanger has both ends (11a, 11b) each having a cylindrical shape, and a center part formed as a multi-lobate tube (11c) to have a corrugated shape with crest portions and trough portions alternately arranged in a circumferential direction. The multi-lobate tube provided at the center part of the tube is formed to have a multi-lobate spiral shape through twisting. Size reduction of the shell and tube heat exchanger may make the screw compressor compact as a whole.
Bibliography:Application Number: CN20121306044