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Refrigerant System With Water Heating

a technology of refrigerant system and water heating, which is applied in the direction of lighting and heating apparatus, heating types, instruments, etc., can solve the problems of not including any device for controlling the refrigerant charge, system not being optimally efficient in all modes of operation, and heat pumps often have non-utilized heating capacity, etc., to achieve the effect of improving the control of the refrigerant charg

Inactive Publication Date: 2008-08-21
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]In one aspect, it is an object of the invention to provide an air conditioner / heat pump system having liquid heating capability and improved refrigerant charge control.

Problems solved by technology

Further, heat pumps often have non-utilized heating capacity when operating in the heating mode for heating the climate controlled zone.
However, these systems do not include any device for controlling the refrigerant charge within the refrigerant circuit.
Therefore, while functional, these systems would not be optimally efficient in all modes of operation.
However, no control procedure is disclosed for actively controlling refrigerant charge in the refrigerant circuit in all modes of operation.
Further, no simultaneous space heating and liquid heating mode is disclosed.

Method used

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  • Refrigerant System With Water Heating
  • Refrigerant System With Water Heating
  • Refrigerant System With Water Heating

Examples

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Embodiment Construction

[0029]The refrigerant heat pump system 10, depicted in a first embodiment in FIGS. 1-3 and a second embodiment in FIGS. 4-7, provides in the first embodiment cooling of air to a comfort region and in the second embodiment cooling and heating of air to a comfort region, for example an indoor zone located on the inside of a building (not shown), and also auxiliary water heating in each embodiment when desired. The system includes a compressor 20, a suction accumulator 22, a reversing valve 30, an outdoor heat exchanger 40 and associated fan 42 located on the outside of the building in heat transfer relation with the surrounding ambient, an indoor heat exchanger 50 and associated fan 52 situated in the comfort zone, a first expansion valve 44 operatively associated with the outdoor heat exchanger 40 and a second expansion valve 54 operatively associated with the indoor heat exchanger 50. A refrigerant circuit including refrigerant lines 35, 45 and 55 provide a closed loop refrigerant f...

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Abstract

A heat pump system (10) includes a compressor (20), a reversing valve (30), an outdoor heat exchanger (40) and an indoor heat exchanger (50) coupled via refrigerant lines (35, 45) in a conventional refrigeration circuit, and a refrigerant-to-water heat exchanger (60). In the air cooling with water heating mode, the air heating with water heating mode and the water heating only mode, water from a water reservoir (64), such as a storage tank or swimming pool, is passed through heat exchanger (60) in heat exchange relationship with refrigerant passing through an additional refrigerant line (27) that establishes a fluid flow path through the heat exchanger (60) into the refrigerant circuit intermediate the outdoor heat exchanger (40) and indoor heat exchanger (50). A refrigerant reservoir (70) may be provided for use in refrigerant charge control.

Description

TECHNICAL FIELD[0001]This invention relates generally to refrigerant systems for cooling or cooling / heating indoor air and, more particularly, to such refrigerant systems including auxiliary liquid heating, including for example heating water for swimming pools, household water systems and the like.BACKGROUND ART[0002]Refrigerant systems, such as air conditioners and reversible heat pumps are well known in the art and commonly used for cooling and cooling / heating, respectively, a climate controlled comfort zone within a residence or a building. A conventional air conditioner or heat pump refrigerant system includes a compressor, a suction accumulator, an outdoor heat exchanger with an associated fan, an indoor heat exchanger 50 with an associated fan, and an expansion valve operatively associated with the indoor heat exchanger. A heat pump system further includes a reversing valve and an additional expansion valve operatively associated with the outdoor heat exchanger. The aforement...

Claims

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Application Information

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IPC IPC(8): F25B29/00
CPCF25B13/00F25B40/04F25B45/00F25B2313/004F25B2700/21152F25B2313/0315F25B2700/1931F25B2700/1933F25B2700/21151F25B2313/0314
Inventor MURAKAMI, TOSHIOTESCHE, CARLOS A.FERNANDEZ, ROBERTO G.
Owner CARRIER CORP
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