Air conditioner

一种空调装置、节流装置的技术，应用在高效调节技术、照明和加热设备、不可逆循环的压缩机器等方向，能够解决不能制热能力、压缩机排出温度高、不能增大压缩机频率等问题，达到延长寿命、防止损伤的效果

Active Publication Date: 2015-11-18
MITSUBISHI ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] In an air conditioner such as a multi-unit air conditioner for a building, if the heating operation is performed when the outdoor air temperature is low, the discharge temperature of the compressor will become too high. Therefore, the frequency of the compressor cannot be increased, and it cannot be used to its full potential. required heating capacity
In addition, if a refrigerant such as R32 is used, the discharge temperature of the compressor will also become too high during cooling operation when the outdoor temperature is high.

Method used

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described based on the drawings. Additionally, include figure 1 In addition, the size relationship of each component in the following drawings may differ from the actual size relationship. Additionally, include figure 1 In addition, in the following drawings, components attached with the same reference numerals are the same or corresponding components, and this holds true throughout the specification. In addition, the form of the structural element shown in the whole specification is a mere illustration, and is not limited to these descriptions.

[0027] figure 1 It is a schematic diagram which shows the installation example of the air-conditioning apparatus which concerns on embodiment of this invention. based on figure 1 An example of installation of an air conditioner will be described. In this air conditioner, any one of a cooling mode and a heating mode can be selected as an operation mode by utilizing...

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Abstract

An air conditioner (100) is provided with first bypass piping (4a) connected to an input-side flow passage of an accumulator (15) via a second throttling device (14a), a second flow passage of a supercooling heat exchanger (13) that exchanges heat with a refrigerant that flows through a first flow passage of the supercooling heat exchanger (13), and a first switching device (19a); second bypass piping (4b) that branches from the first bypass piping (4a) between the supercooling heat exchanger (13) and the first switching device (19a), and is connected to an injection port of a compressor (10) via a second switching device (19b); and third bypass piping (4c) that branches from refrigerant piping between a heat source-side heat exchanger (12) and utilization-side heat exchangers (17), and is connected to the second bypass piping (4b) between the second switching device (19b) and the injection port of the compressor (10), via a third throttling device (14b).

Description

technical field [0001] The present invention relates to an air conditioner applied to, for example, a multi-unit air conditioner for a building. Background technique [0002] In an air conditioner such as a multi-unit air conditioner for a building, if the heating operation is performed when the outdoor air temperature is low, the discharge temperature of the compressor will become too high. Therefore, the frequency of the compressor cannot be increased, and it cannot be used to its full potential. required heating capacity. In addition, when a refrigerant such as R32 is used, the discharge temperature of the compressor becomes too high even during cooling operation where the outdoor air temperature is high. Therefore, it is necessary to lower the discharge temperature of the compressor so that heat corresponding to the load can be supplied. There is an air conditioner in which, in order to lower the discharge temperature of the compressor, there is a circuit for injecting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25B13/00
CPCF25B13/00F25B1/10F25B40/00F25B2313/006F25B2313/0233F25B2313/02741F25B2313/0314F25B2400/13F25B2600/2501F25B2600/2509F25B2700/1931F25B2700/1933F25B2700/2101F25B2700/21152F25B49/022F25B41/34F25B2400/23Y02B30/70F25B31/008
Inventor 山下浩司
Owner MITSUBISHI ELECTRIC CORP
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