Drying machine

Abstract

An object is to provide a drying machine capable of effectively eliminating confinement of heat while a drying time of an object to be dried is reduced, and the drying machine includes a refrigerant circuit constituted by successively connecting a compressor, a radiator, a pressure reducing unit, an evaporator and the like in an annular form via a pipe; an air circulation path which allows an air sending unit to perform air circulation so as to send air from the radiator through the storage chamber to the evaporator and to again return the air to the radiator; and a heat exchange unit for performing heat exchange between an external heat medium and the air in the refrigerant circuit, the heat exchange being performed between a leeward side of the evaporator and a windward side of the radiator.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an internal constitution diagram of a washing and drying machine of an embodiment of the present invention;

FIG. 2 is the Mollier chart of a refrigerant circuit during a drying operation of the washing and drying machine of FIG. 1;

FIG. 3 is an explanatory view of a case where a fan is disposed in the vicinity of an external heat exchanger of the washing and drying machine of FIG. 1;

FIG. 4 is an explanatory view of a case where the external heat exchanger of the washing and drying machine of FIG. 1 is a water cooling type heat exchanger;

FIG. 5 is an explanatory view of a washing and drying machine of Embodiment 2 of the present invention;

FIG. 6 is an explanatory view of another washing and drying machine of Embodiment 2 of the present invention;

FIG. 7 is an internal constitution diagram of a washing and drying machine of Embodiment 3 of the present invention;

FIG. 8 is an explanatory view of another washing and drying machine of Embodiment 3 of the present invention;

FIG. 9 is an explanatory view of a washing and drying machine of Embodiment 4 of the present invention (applied to Embodiment 1);

FIG. 10 is an explanatory view of the washing and drying machine of Embodiment 4 of the present invention (another example applied to Embodiment 1);

FIG. 11 is an explanatory view of another washing and drying machine of Embodiment 4 of the present invention (applied to Embodiment 2);

FIG. 12 is an explanatory view of still another washing and drying machine of Embodiment 4 of the present invention (another example applied to Embodiment 2);

FIG. 13 is an explanatory view of a further washing and drying machine of Embodiment 4 of the present invention (applied to Embodiment 3);

FIG. 14 is an explanatory view of a further washing and drying machine of Embodiment 4 of the present invention (another example applied to Embodiment 3);

FIG. 15 is an internal constitution diagram of a washing and drying machine of Embodiment 5 of the present invention; FIG. 16 is a diagram showing transitions of a drying time and a circulation temperature (air for drying) during a drying operation of the washing and drying machine of FIG. 15; and

FIG. 17 is an explanatory view of another washing and drying machine of Embodiment 5 of the present invention.

Claims

1. A drying machine which includes a storage chamber to store an object to be dried and which executes a drying operation of the object to be dried in the storage chamber, the drying machine comprising: a refrigerant circuit constituted by successively connecting a compressor, a radiator, a pressure reducing unit, an evaporator and the like in an annular form via a pipe;an air circulation path which allows air sending means to perform air circulation so as to send air from the radiator through the storage chamber to the evaporator and to again return the air to the radiator; andheat exchange means for performing heat exchange between an external heat medium and the air in the air circulation path, the heat exchange being performed between a leeward side of the evaporator and a windward side of the radiator.

2. The drying machine according to claim 1, wherein the compressor is disposed in the air circulation path.

3. The drying machine according to claim 1, wherein the compressor is disposed in the outside of the air circulation path; and a periphery of the compressor is insulated.

4. The drying machine according to claim 2, wherein the heat exchange means is disposed between the leeward side of the evaporator and the windward side of the compressor in the air circulation path.

5. The drying machine according to claim 2, wherein the heat exchange means is disposed between the leeward side of the compressor and the windward side of the radiator in the air circulation path.