REFRIGERATING DEVICE - DAIKIN IND LTD

Title:

REFRIGERATING DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/056789

Kind Code:

A1

Abstract:

The purpose of the invention is to improve the safety of a refrigerating device comprising a plurality of utilization units. A refrigerating device (100) comprises: a refrigerant circuit (RC) that comprises a heat source unit (10) comprising a compressor (11), and a plurality of utilization units (30) comprising a utilization-side heat exchanger (32) and disposed to be parallel to each other; a plurality of on-off valves (36) that block the flow of supplied refrigerant by being in the closed state; and a controller (60) that controls the action of the compressor (11) and each on-off valve (36) according to a control mode. Each on-off valve (36) is disposed on the refrigerant inlet side of any of the utilization-side heat exchangers (32). The controller (60) is electrically connected to a refrigerant leak sensor (40), transitions to a refrigerant leak control mode when the refrigerant leak sensor (40) detects a refrigerant leak in any of the utilization units (30), controls the on-off valve (36) disposed on the inlet side of the utilization-side heat exchanger (32) of the utilization unit (30) with a refrigerant leak so as to be in the closed state, and operates the compressor (11) at a prescribed rotational speed.

More Like This:

JP2019045056	FREEZER
JP2008039231	OUTDOOR UNIT FOR REFRIGERATION CYCLE DEVICE
JPS599468	DETECTOR FOR QUANTITY OF LEAKING REFRIGERANT OF CAR AIR CONDITIONER

Inventors:

TAKEGAMI MASAAKI
IKEMIYA MAKOTO

Application Number:

PCT/JP2016/074519

Publication Date:

April 06, 2017

Filing Date:

August 23, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DAIKIN IND LTD (JP)

International Classes:

F25B49/02; F24F11/02; F25B1/00; F25B5/02

Foreign References:

JPH05118720A	1993-05-14
JP2013140002A	2013-07-18
JP2005241050A	2005-09-08

Other References: