SCREW COMPRESSOR

• Main Authors: NISHICHI YOSHIAKI, TAKAHASHI WAHEI, IKEGAMI YOSHIHARU, MORINAGA KENTA
• Format: Patent
• Language: English; Japanese
• Published: 21.08.2023
• Subjects: BLASTING; 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

To provide a screw compressor capable of collecting drain containing oil content generated in a flow path from an oil collector to an oil separator.SOLUTION: A screw compressor 1 is for supplying target gas, which is boil-off gas, from a storage tank 2 to a consumer 8, and comprises: an oil-cooled compressor body 10 that compresses the target gas; an oil collector 20 that separates oil from the target gas; an oil separator 30 that further separates oil contained in the target gas; and a drain collection unit 40 that collects drain containing oil content from the oil separator 30. The drain collection unit 40 has a drain flow path 42 that is connected to the compressor body 10 and returns the drain containing the oil content to a compression space.SELECTED DRAWING: Figure 1 【課題】油回収器から油分離器に至るまでの流路において発生する油分を含むドレンを回収できるスクリュ圧縮機を提供する。【解決手段】スクリュ圧縮機１は、貯槽２から需要先８にボイルオフガスである対象ガスを供給するためのものであり、対象ガスを圧縮する油冷式の圧縮機本体１０と、対象ガスから油を分離する油回収器２０と、対象ガスに含まれる油をさらに分離する油分離器３０と、油分離器３０から油分を含むドレンを回収するドレン回収部４０とを備える。ドレン回収部４０は、圧縮機本体１０に接続されるとともに圧縮空間に油分を含むドレンを戻すドレン流路４２を有する。【選択図】図１