Water seal type vacuum pump

• Main Authors: SHIMOHARAI YUTA, WATANABE KENJI, SASAO TOMOHIRO
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2024
• 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

Provided is a water-sealed vacuum pump capable of suppressing vibration and noise of a pump main body even when a synthetic resin pump housing is used. A water-sealed vacuum pump (1) is provided with: an impeller (10) that is connected to a rotating shaft (92) of a motor (90) and rotates about an axis (94); a pump housing (20) that constitutes a pump chamber (60) that accommodates the impeller (10); a water supply port (3) for supplying sealing water to the pump chamber (60); a suction port (5) for sucking gas into the pump chamber (60); and a discharge port (6) for discharging gas from the pump chamber (60), and the pump housing (20) is formed from a synthetic resin and is provided with a metal ring member (14) that covers at least a part of a rotation region (12) of the impeller (10). 本发明提供一种即使在使用了合成树脂制的泵壳体的情况下也能够抑制泵主体的振动以及噪声的水封式真空泵。水封式真空泵(1)具备：叶轮(10)，其与马达(90)的旋转轴(92)连结，并绕轴线(94)旋转；泵壳体(20)，其构成收容叶轮(10)的泵室(60)；供水口(3)，其用于向泵室(60)供给密封水；吸入口(5)，其用于向泵室(60)吸入气体；以及排出口(6)，其用于从泵室(60)排出气体，泵壳体(20)由合成树脂形成，并且具备覆盖叶轮(10)的旋转区域