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Refrigeration/ air-conditioning apparatus and method for setting the refrigeration/ air-conditioning apparatus

A technology of air-conditioning devices and load devices, which is applied in the direction of household refrigeration devices, cooling fluid circulation devices, refrigerators, etc., can solve the problems of heavy workload and increased setting operation time, and achieve the effect of reducing the workload

Active Publication Date: 2013-01-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the method of enclosing non-flammable refrigerant in the refrigerant circuit in the storage and transportation process, the work of recovering the non-flammable refrigerant during the installation work is a new work that did not exist in the conventional installation work, and there is an increase in installation work time, The problem of heavy workload

Method used

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  • Refrigeration/ air-conditioning apparatus and method for setting the refrigeration/ air-conditioning apparatus
  • Refrigeration/ air-conditioning apparatus and method for setting the refrigeration/ air-conditioning apparatus
  • Refrigeration/ air-conditioning apparatus and method for setting the refrigeration/ air-conditioning apparatus

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Embodiment approach 1

[0025] Next, an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a refrigerant circuit configuration part of an outdoor unit for an air conditioner according to the present invention. In the outdoor unit 50, the compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the pressure reducer 4, the liquid storage tank 5, the gas piping connection valve 6, and the liquid piping connection valve 7 are connected by piping, and the outdoor unit 50 The refrigerant circuit configuration part is housed and arranged in the outdoor unit 50 . figure 2 It is a diagram when the outdoor unit 50 and the indoor unit 60 for an air conditioner are connected by the gas extension pipe 10 and the liquid extension pipe 11 to install / install as an air conditioner. The indoor unit 60 is connected to the indoor heat exchanger 9 , the gas pipe connection port 12 , and the liquid pipe connection port 13 by pipes, and is accommodated in the ind...

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Abstract

An apparatus using refrigerant is provided. The apparatus includes, a refrigerant circuit including, a refrigerant circuit component part of an outdoor unit including a compressor (1), an outdoor heat exchanger (3), a decompressor (4), and a liquid reservoir (5), in which an incombustible refrigerant is sealed before factory shipment, and a load-side apparatus which is connected to the refrigerant circuit component part of the outdoor unit by way of extension pipes, and a refrigerant sealing connecting port which is provided in the refrigerant circuit and which seals a combustible refrigerant or a slightly combustible refrigerant, wherein, when setting the outdoor unit and the load-side apparatus at a place of use, the combustible refrigerant or the slightly combustible refrigerant is additionally sealed in the refrigerant circuit from the refrigerant sealing connecting port while the incombustible refrigerant is sealed in the refrigerant circuit component part of the outdoor unit.

Description

technical field [0001] The present invention relates to a refrigerating / air-conditioning device using a flammable refrigerant, and particularly relates to manufacture, shipment, storage, transportation and installation. Background technique [0002] In recent years, as interest in the global environment has increased, refrigerants having a low Global Warming Potential (GWP) that do not significantly affect the destruction of the ozone layer or global warming have attracted attention. In 2009, the European automotive air-conditioning industry stipulated the use of low-GWP refrigerants with a GWP of less than 150. In order to prevent global warming, the use of refrigerants with a low GWP is also required for home and office equipment. HC refrigerants such as propane, butane, and isobutane with a GWP of less than 150, and HFC refrigerants such as HFO1234yf have attracted attention. On the other hand, propane, butane, and isobutane, which are HC refrigerants, are flammable refr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B45/00
CPCF25B13/00F25D2400/32F25B2400/121F25B2400/12F25B45/00F25B2309/06F25B9/006Y10T29/49359Y10T29/49826Y02P80/10B23P19/04F25B9/002
Inventor 柴广有
Owner MITSUBISHI ELECTRIC CORP
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