HEAT PUMP CHILLING SYSTEM AND CONTROL METHOD THEREFOR

Title:

HEAT PUMP CHILLING SYSTEM AND CONTROL METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2015/162798

Kind Code:

A1

Abstract:

　A heat pump chilling system has an inlet temperature sensor for detecting the inlet temperature of a heat medium that flows into a plurality of heat pump chilling devices, an outlet temperature sensor for detecting the temperature at the outlet where the medium flows from the plurality of heat pump chilling devices to a load, and a system control device for controlling the operation of the plurality of heat pump chilling devices on the basis of the inlet temperature and the outlet temperature. The system control device is provided with: a storage unit in which the operating capacity of each of the plurality of heat pump chilling devices is stored; a required capacity calculation means for calculating the required capacity on the basis of a target temperature set for the inlet temperature or the outlet temperature; a unit-quantity calculation means for calculating the number of units of the heat pump chilling devices to be started up to satisfy the required capacity, on the basis of the operating capacity of each of the plurality of heat pump chilling devices; and a startup control means for starting up the startup unit quantity of the heat pump chilling devices as calculated by the unit-quantity calculation means.

Inventors:

OTA TOMOHIDE (JP)
KADOWAKI KIMITAKA (JP)

Application Number:

PCT/JP2014/061795

Publication Date:

October 29, 2015

Filing Date:

April 25, 2014

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F24H1/00; F25B1/00

Foreign References:

JP2010216684A	2010-09-30
JP2010236825A	2010-10-21
JP2009243758A	2009-10-22
JP2008309428A	2008-12-25
JPH0783506A	1995-03-28

Other References: