Title:
VACUUM PUMP SYSTEM AND WET TYPE VACUUM SPRINKLER SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2016056738
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a vacuum pump system capable of suppressing occurrence of failure or troubles even in a case where liquid enters a seal type vacuum pump, and a wet type vacuum sprinkler system using the vacuum pump system.SOLUTION: A vacuum pump system 10 has a water seal type vacuum pump 60 that rotates an impeller 66 in a casing where water is sealed with a three-phase AC motor 60a, and suctions and discharges water in a suction chamber and a discharge chamber that are connected for communication. The vacuum pump system has a current sensor 14 for detecting a load of the three-phase AC motor 60a in operation, and a control unit 12 for increasing/decreasing the rotational frequency of the three-phase AC motor 60a according to the load detected by the current sensor 14.SELECTED DRAWING: Figure 1
Inventors:
MATSUOKA HARUITSU
Application Number:
JP2014183877A
Publication Date:
April 21, 2016
Filing Date:
September 10, 2014
Export Citation:
Assignee:
K & G:KK
International Classes:
F04C28/08; A62C35/60; A62C35/68; F04C19/00; F04C25/02
Domestic Patent References:
| JPS611886A | 1986-01-07 | |||
| JP2012130374A | 2012-07-12 |
Foreign References:
| WO2013087708A2 | 2013-06-20 |
Attorney, Agent or Firm:
Satoshi Eto
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