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Evacuation device and control method of central air-conditioning system, central air-conditioning system

A technology of central air-conditioning system and evacuation device, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of long time consumption and slow central air-conditioning system, and achieve the effect of speeding up the speed and efficiency of vacuuming

Active Publication Date: 2016-10-05
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to provide an emptying device for a central air-conditioning system, its control method, and a central air-conditioning system, so as to solve the problems of slow speed and long time consumption of the central air-conditioning system in the prior art

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  • Evacuation device and control method of central air-conditioning system, central air-conditioning system
  • Evacuation device and control method of central air-conditioning system, central air-conditioning system
  • Evacuation device and control method of central air-conditioning system, central air-conditioning system

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Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0028] see image 3 and Figure 4 As shown, according to the embodiment of the present invention, an emptying device for a central air-conditioning system is provided. The emptying device of the central air-conditioning system includes a container 10 , a vacuum device 20 , a refrigerant filling device 30 and a detection device 40 . Wherein, the container 10 is connected with the central air-conditioning system (not shown in the figure); the vacuum device 20 is connected with the container 10, and the container 10 is vacuumized; Refrigerant; the detecting device 40 is connected with the container 10 to detect the pressure in the container 10 and the purity of the refrigerant in the container 10 . According to the embodiment of the present inventio...

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Abstract

The invention provides an emptying device of a central air-conditioning system, a control method thereof, and a central air-conditioning system. The emptying device of the central air-conditioning system includes: a container, which is connected to the central air-conditioning system; a vacuum device, which is connected to the container; a refrigerant filling device, which is connected to the container; a detection device, which is connected to the container. Detect the pressure in the container and the purity of the refrigerant in the container. According to the present invention, the vacuuming speed and efficiency of the vacuuming device can be accelerated, which is simple and fast.

Description

technical field [0001] The present invention relates to the technical field of emptying devices, and more specifically, to an emptying device for a central air-conditioning system, a control method thereof, and a central air-conditioning system. Background technique [0002] Due to the large volume of the large central air conditioner and the small cut-off valve of the unit, the emptying process before the refrigerant tank filling has always been the bottleneck process of the whole machine production. like figure 1 Shown, adopt vacuum pump 1 ' direct pumping method in the prior art always, system vacuum degree is pumped to about 100Pa by 0.1MPa. The whole process is slow, and the more you pump to the end, the slower the pumping speed is, and it takes a long time. The pumping speed of the whole process is as follows figure 2 As shown, the evacuation time presents an exponential growth, which is slow and takes a long time. Contents of the invention [0003] The present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B45/00
Inventor 侯琳瑛
Owner GREE ELECTRIC APPLIANCES INC