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Refrigeration device

A technology for refrigeration equipment and refrigeration oil, which is used in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., to achieve the effects of preventing decomposition, inhibiting wear and sintering, inhibiting deterioration and corrosion of expansion valves

Active Publication Date: 2016-10-26
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since these fluorine-based refrigerants do not contain chlorine, they have little effect on the destruction of the ozone layer, but they have a large effect on global warming due to the greenhouse effect.

Method used

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Embodiment approach

[0044] The air conditioner 1 which is the refrigeration apparatus which concerns on embodiment of this invention is demonstrated. figure 1 is a refrigerant flow diagram of the air conditioner 1 . The air conditioner 1 is mainly composed of a compressor 2 , a four-way switching valve 3 , an outdoor heat exchanger 4 , an expansion mechanism 5 , and an indoor heat exchanger 6 . figure 1 In , the solid line arrows indicate the flow of the refrigerant during the cooling operation, and the broken line arrows indicate the flow of the refrigerant during the heating operation.

[0045]The refrigerating cycle of the air conditioner 1 during cooling operation will be described. First, the compressor 2 compresses low-pressure gas refrigerant and discharges high-pressure gas refrigerant. The refrigerant discharged from the compressor 2 is supplied to the outdoor heat exchanger 4 through the four-way switching valve 3 . The outdoor heat exchanger 4 condenses the high-pressure gas refrige...

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Abstract

A refrigeration apparatus (1) comprises a compressor (2), a condenser (4, 6), an expansion mechanism (5), and an evaporator (6, 4). A refrigerant containing R32, and refrigerator oil for lubricating the compressor (2) are used in the refrigeration apparatus (1). An acid scavenger added in an amount of 1.0 wt% to 5.0 wt% is blended in the refrigerator oil.

Description

[0001] This application is a divisional application, the international application number of the original application is PCT / JP2013 / 079634, the Chinese national application number of the original application is 201380056076.X, the application date is October 31, 2013, and the invention name is "refrigerating device ". technical field [0002] The present invention relates to freezing devices. Background technique [0003] Conventionally, refrigerating machine oils used in refrigerating devices such as air conditioners contain substances for suppressing deterioration of refrigerating machine oil and corrosion of expansion valves caused by acids such as hydrofluoric acid generated by decomposition of refrigerants. For example, at least 0.05% by weight of an acid scavenger is added to the refrigerating machine oil disclosed in Patent Document 1 (JP-A-2001-226690). [0004] In addition, fluorine-based refrigerants such as R134a which is tetrafluoroethane and R410A and R407C whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00C09K5/04C10M169/04C10N40/30C10N30/12C10N30/06C10N30/10
CPCC09K5/045C10M171/00F25B13/00C10M129/74C10M145/28C10M171/008F25B2313/02741C09K2205/24C10M2207/2835C10M2209/043C10N2020/101C10N2030/10C10N2030/12C10N2030/06C10N2040/30F25B41/31F25B41/20C10M2203/04C10M2207/042C10M2215/14C09K5/04C10M105/32C10M107/24C10M129/18C10M133/22C10M169/04F25B1/00
Inventor 田中胜松浦秀树平良繁治中井明纪
Owner DAIKIN IND LTD
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