Title:
LIQUID SENDING MECHANISM CONTROL DEVICE
Document Type and Number:
Japanese Patent JPS62186307
Kind Code:
A
Abstract:
PURPOSE:To always control a liquid sending quantity and the number of the driver in the optimum condition and to execute the energy saving by detecting the liquid level of a liquid storage facility with a liquid level detecting device, operating the liquid sending quantity so that the liquid level can be held constantly and controlling the number of the driver of the liquid sending mechanism with the operating output. CONSTITUTION:A liquid sending mechanism control device detects the liquid level of a liquid storage facility 1 with a liquid level detecting device 3, and based on the deviation of a liquid level process quantity PV and a liquid level setting quantity SV set beforehand, sends an operating output quantity MV to plural liquid sending pumps 2a, 2b and 2c as the liquid sending mechanism and controls the number of revolutions of liquid sending pumps 2a-2c in accordance with the operating output quantity MV. The operating output quantity MV is supplied to a pump driving control circuit 10 and based on the operating output quantity MV by the pump driving control circuit 10, the number of the pumps operated is controlled.
Inventors:
NAGAO HITOSHI
Application Number:
JP2857686A
Publication Date:
August 14, 1987
Filing Date:
February 12, 1986
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G05D9/12; G05D9/00; (IPC1-7): G05D9/00
Attorney, Agent or Firm:
Takehiko Suzue