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Refrigerator

A refrigeration device and refrigerant technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problem of not being able to effectively utilize the capacity of the refrigeration device to the maximum extent

Inactive Publication Date: 2003-12-24
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As mentioned above, when determining the amount of refrigerant charge according to the level of construction on site, the performance and reliability of the equipment depend on the level of construction on site, so there may be cases where the capacity of the refrigeration unit cannot be used to the maximum extent.

Method used

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Examples

Experimental program
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Embodiment Construction

[0017] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0018] As shown in Fig. 1, the split-type refrigeration device has a refrigeration cycle A (refrigerant circuit) formed by connecting an outdoor unit X and an indoor unit Y through a liquid pipe 8 and a gas pipe 9 for connection. The outdoor unit X is equipped with parallel compressors Air-cooled condenser 2 (heat source side heat exchanger) and storage tank 3 of machine 1, outdoor fan 6, and indoor unit Y is equipped with expansion valve 4 and evaporator (use side heat exchanger) 5. An on-site piping section Z is provided on the liquid piping 8 and the gas piping 9 . Symbol 7 is an indoor fan.

[0019] Such as figure 2 As shown, the storage tank 3 is attached with a liquid level detection device 10 for detecting that the liquid level L in the storage tank 3 reaches a given position L 0 Case. In this embodiment, the liquid level dete...

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PUM

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Abstract

A refrigerator capable of always assuring an optimum filling amount of refrigerant by allowing the amount of refrigerant required by the refrigerator installed at site to be filled, comprising a refrigerating cycle (A) having an outdoor unit (X) with a compressor (1), a condenser (2), and a receiver (3) and an indoor unit (Y) with an expansion valve (4) and an evaporator (5) allowed to communicate with each other through a liquid pipe (8) and a gas pipe (9), wherein refrigerant is filled in the refrigerating cycle (A) while an refrigerant filled operating state in which the liquid pipe allowing the outdoor unit (X) to communicate with the indoor unit (Y) is filled with liquid refrigerant with a specified density is being produced, and the filling of the refrigerant is terminated when the liquid level (L) in the receiver (3) is detected to be a specified position (L0) during the refrigerant filling operation.

Description

technical field [0001] The present invention relates to a split-type refrigeration device, and in more detail, relates to a determination method for setting the refrigerant filling amount when filling refrigerant in the split-type refrigeration device on site. Background technique [0002] For a long time, people have been more familiar with the split type refrigeration unit: the split type refrigeration unit composed of an outdoor unit equipped with a compressor, a condenser and a storage tank, and an indoor unit equipped with an expansion valve and an evaporator. In the case of the split-type freezer with the above-mentioned configuration, the refrigerant filling method used is to fill the outdoor unit with a predetermined amount of refrigerant in advance, and then install it on site, corresponding to the connecting pipe connecting the outdoor unit and the indoor unit. length, add insufficient refrigerant. [0003] As mentioned above, when determining the refrigerant fill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25B45/00F25B49/02
CPCF25B49/027F25B2600/2513F25B45/00F25B2600/02F25B2700/04F25B2700/1933Y02B30/743F25B2600/112F25B2400/16F25B2600/111Y02B30/70
Inventor 松冈弘宗下田顺一
Owner DAIKIN IND LTD