Title:
SAFETY VALVE AUTOMATIC INSPECTION DEVICE AND AUTOMATIC INSPECTION METHOD
Document Type and Number:
Japanese Patent JP2022108633
Kind Code:
A
Abstract:
To provide a safety valve automatic inspection device and an automatic inspection method capable of measuring correctly, respective actuation pressures in start of blowing, during blowing and blowing stop of a safety valve, shortening a period until reaching to a blowing start pressure, for quickly executing a safety valve pressure inspection.SOLUTION: The invention is configured to cause inspection fluid to flow into an inspection channel 2 to which a workpiece 3 formed of a safety valve is coupled, for measuring an actuation pressure of the safety valve 3. The inspection channel 2 comprises: a primary side channel 11 for inspection fluid supply and for holding the workpiece 3 therebetween; and a secondary side channel 12 for measuring an actuation pressure of the workpiece 3. The secondary side channel 12 comprises: a minute leakage channel 40 having a minute leakage sensor 51 for measuring a minute flow rate by the blowing start pressure of the safety valve 3; and a large leakage channel 41 having a large leakage sensor 53 for measuring a large flow rate by the blowing pressure and blowing stop pressure being larger than the blowing start pressure, these channels being branched so as to be switched.SELECTED DRAWING: Figure 2
Inventors:
KIRA NAOKI
KOBAYASHI DAIKI
SEKIGUCHI YUJI
KOBAYASHI DAIKI
SEKIGUCHI YUJI
Application Number:
JP2021003739A
Publication Date:
July 26, 2022
Filing Date:
January 13, 2021
Export Citation:
Assignee:
KITZ CORP
International Classes:
G01M3/00; F16K51/00; G01M3/26
Attorney, Agent or Firm:
Tetsuo Kobayashi
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