Title:
VALVE CONTROL DEVICE, VALVE CONTROL SYSTEM, METHOD FOR CALCULATING VALVE CONTROL COEFFICIENT, AND VALVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/167994
Kind Code:
A1
Abstract:
Provided are: a valve control device which is capable of reducing the difference between a set opening amount and the actual opening amount, when executing a partial valve stroke test; a valve control system; a method for calculating a valve control coefficient; and a valve control method. This shut-off valve control device is provided with a microcomputer 7 for controlling the opening and closing of a solenoid valve 5 which supplies air from an air supply source 11, to a cylinder 31 of an air cylinder 3 for controlling a valve shaft 1b of a shut-off valve 1, and discharges said air. The microcomputer 7 acquires a set opening amount of the shut-off valve 1. Furthermore, the microcomputer 7 controls the solenoid valve 5 to a value obtained by dividing the acquired set opening amount by a predetermined coefficient C.
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Inventors:
KOBAYASHI MASAYUKI (JP)
ABE KAZUOMI (JP)
ABE KAZUOMI (JP)
Application Number:
PCT/JP2017/026263
Publication Date:
September 20, 2018
Filing Date:
July 20, 2017
Export Citation:
Assignee:
KANEKO SANGYO CO LTD (JP)
International Classes:
F16K51/00; F16K31/122; F16K37/00
Foreign References:
| JPH0526041B2 | 1993-04-14 | |||
| JPH11210921A | 1999-08-06 |
Attorney, Agent or Firm:
TAKINO, Fumio et al. (JP)
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