Unlock instant, AI-driven research and patent intelligence for your innovation.

Refrigerant charging device, refrigeration device, and refrigerant charging method

一种填充装置、冷媒的技术，应用在制冷机、制冷剂、制冷组件等方向，能够解决冷媒填充速度变慢、填充时间变长等问题

Active Publication Date: 2011-08-17
DAIKIN IND LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that, for example, when the outside air temperature is low and the pressure inside the cylinder is low, the charging speed of the refrigerant becomes slow and the charging time becomes long.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Refrigerant charging device, refrigeration device, and refrigerant charging method
  • Refrigerant charging device, refrigeration device, and refrigerant charging method
  • Refrigerant charging device, refrigeration device, and refrigerant charging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

[0011] figure 1 A schematic configuration of a refrigeration device to which an embodiment of the refrigerant charging device according to the present invention is applied is shown. Such as figure 1 As shown, this refrigerating device 10 is provided with a refrigerant circuit 12 for circulating a refrigerant. In this refrigerant circuit 12, a compressor 14 functioning as a compression mechanism for compressing refrigerant and an outdoor unit functioning as a condenser are sequentially provided. Heat exchanger 16, tank 18 for storing refrigerant, expansion valve 20 functioning as an expansion mechanism, and indoor heat exchanger 22 functioning as an evaporator.

[0012] The compressor 14 , the expansion valve 20 , etc. are driven and controlled by the controller 30 . Various sensors such as a low-pressure side pressure sensor 34 , a high-pressure si...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A variation in time of charging refrigerant into a refrigeration circuit is suppressed. A refrigerant charging device has an electric valve (49) provided in a supply pipe (47), a flow rate control section (50) for adjusting, based on a pressure difference between the pressure of refrigerant supplied to the supply pipe (47) and the pressure of refrigerant on the suction side of a compressor (14), the degree of opening of the electric valve (49) so that the flow rate in the supply pipe (47) is within a predetermined range, an outdoor air temperature sensor (36) for sensing outdoor air temperature, and a low pressure side pressure sensor (34) for sensing the pressure of the refrigerant on the suction side of the compressor (14). The pressure difference is a difference between a saturation pressure corresponding to the outdoor air temperature sensed by the outdoor air temperature sensor (36) and a refrigerant pressure sensed by the low pressure side pressure sensor (34).

Description

technical field [0001] The invention relates to a refrigerant filling device, a refrigeration device and a refrigerant filling method. Background technique [0002] Conventionally, as a device for filling the refrigerant circuit with refrigerant, a structure disclosed in Japanese Patent Laid-Open Publication No. 2001-74342 is known, that is, a supply pipe is provided on the refrigerant piping on the suction side of the compression mechanism of the refrigerant circuit. The supply pipe is connected to a cylinder so that the refrigerant can be filled into the refrigerant circuit. In this charging device, the refrigerant is filled into the refrigerant circuit by flowing the refrigerant into the refrigerant circuit through the supply pipe according to the pressure difference between the refrigerant pressure in the cylinder and the pressure on the suction side of the compression mechanism. [0003] However, the above-mentioned filling device has the following problems. That is, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25B45/00
CPCF25B2600/2515F25B2345/001F25B2700/2106F25B2700/1933F25B45/00F25B49/02
Inventor 河野聪冈昌弘谷和彦冈本敦
Owner DAIKIN IND LTD