Binary refrigeration apparatus
AssigneePhc Holdings Corporation
InventorsTakashi Toyooka, Minoru Suto
Life of this patent
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Abstract
Provided is a binary refrigeration apparatus including: a low-temperature side refrigeration circuit including a spiral heat exchanger including a main tube and a spiral tube wound around the main tube in a spiral form, the main tube being a tube where a low-temperature side refrigerant that flows into a low-temperature side compressor enters, the spiral tube being a tube where the low-temperature side refrigerant flown out from the low-temperature side compressor enters; and a high-temperature side refrigeration circuit where a high-temperature side refrigerant that exchanges heat with the low-temperature side refrigerant through a plate heat exchanger circulates.
Claims10
A binary refrigeration apparatus comprising:
- a low-temperature side refrigeration circuit including a spiral heat exchanger including a main tube and a spiral tube wound around the main tube in a spiral form, the main tube being a tube where a low-temperature side refrigerant that flows into a low-temperature side compressor enters, the spiral tube being a tube where the low-temperature side refrigerant flown out from the low-temperature side compressor enters;
- and
- a high-temperature side refrigeration circuit where a high-temperature side refrigerant that exchanges heat with the low-temperature side refrigerant through a plate heat exchanger circulates,
- wherein the low-temperature side refrigerant flown out from the low-temperature side compressor as a whole enters the spiral tube.
A binary refrigeration apparatus comprising:
- a low-temperature side refrigeration circuit including a double-tube heat exchanger including a multi-petal tube formed in a tubular shape with a wave shape in a cross section orthogonal to an axis line and an outer tube formed in a tubular shape for housing the multi-petal tube inside, the multi-petal tube being a tube where a low-temperature side refrigerant flown out from a low-temperature side compressor enters, the outer tube being a tube where the low-temperature side refrigerant that flows into the low-temperature side compressor enters between an inner peripheral surface of the outer tube and an outer peripheral surface of the multi-petal tube;
- and
- a high-temperature side refrigeration circuit where a high-temperature side refrigerant that exchanges heat with the low-temperature side refrigerant through a plate heat exchanger circulates.
Dependencies are inferred from the claim text.