US 10,851,275 B2 · Refrigeration apparatus

Abstract

A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.

Claims10

Dependent claims

A refrigeration apparatus comprising:

a heat source unit;
a utilization unit having a utilization unit internal pipeline;
a liquid refrigerant pipe and a gas refrigerant pipe that connect the heat source unit and the utilization unit internal pipeline;
a refrigerant circulating through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe,
the refrigerant containing a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds;
and
a disproportionation inhibitor applied to inner surfaces of at least a part of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipeline, thereby forming a layer on the inner surfaces thereof, for reducing a disproportionation reaction of the refrigerant.

4 more elements

Dependencies are inferred from the claim text.

Refrigeration apparatus

Life of this patent

Refrigeration apparatus

Life of this patent

Abstract

Claims10