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Refrigerating apparatus

A refrigeration device and refrigerant technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as the decline of heating capacity of indoor units, and achieve the effect of improving performance coefficient and heating capacity.

Inactive Publication Date: 2010-12-08
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the refrigerant liquefies and accumulates in the stopped indoor heat exchanger in this way, the amount of refrigerant flowing through the running (heating) indoor heat exchanger will be somewhat insufficient, reducing the heating capacity of the indoor unit.

Method used

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Embodiment approach

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Abstract

A refrigerating apparatus including a refrigerant circuit (10) in which such a refrigerating cycle that the pressure of a refrigerant discharged from a compressor (22) is increased to a critical value or higher. When the heating operation is performed in a first indoor heat exchanger (33a) and a second indoor heat exchanger (33b) is stopped to operate, an indoor expansion valve (34b) corresponding to the indoor heat exchanger (33b) being stopped to operate is fully closed.

Description

[0001] The patent application for this invention is a divisional application of the invention patent application with the international application number PCT / JP2007 / 054405, the international application date is March 7, 2007, and the application number entering the Chinese national phase is 200780008199.0, and the name is "refrigeration device". technical field [0001] The present invention relates to a refrigerating device capable of separate heating operations of a plurality of use-side heat exchangers, and particularly relates to countermeasures against refrigerant liquefaction and accumulation in the use-side heat exchangers in a stopped state. Background technique [0002] A refrigeration device that circulates a refrigerant to perform a refrigeration cycle is widely used in air conditioners and the like. As such an air conditioner, there is a so-called multi-type air conditioner in which a plurality of indoor units are connected to the outdoor unit in parallel with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B6/02F25B1/00F24F11/02
CPCF25B9/008F25B13/00F25B2500/24F25B2313/0314F25B2600/2513F25B2313/02323F25B2309/061F25B2700/2104F25B2313/02741F25B41/31
Inventor 笠原伸一山口贵弘
Owner DAIKIN IND LTD
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