Filter clogging determination method, multi-connected air conditioner and readable medium
A technology for filter clogging and determination method, which is applied in the direction of compressors with reversible cycle, compressors, refrigeration safety arrangements, etc. The effect of reducing maintenance costs, improving maintenance efficiency and reducing maintenance costs
Active Publication Date: 2019-11-05
NINGBO AUX ELECTRIC
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, due to the non-standard production and installation of multi-connected air-conditioning internal units, especially the lack of nitrogen-filled welding to produce scale, the scale will continue to accumulate at the filter before the expansion valve with the operation of the air-conditioning system, often appearing inside The air conditioner filter is dirty and clogged, and the refrigerant in the indoor unit cannot be effectively circulated, which seriously affects the effect of the indoor unit. At this time, it is necessary to disassemble the unit to troubleshoot the problem. However, the current indoor units of air conditioners are mostly installed in the ceiling, and disassembly is very troublesome. High maintenance cost
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] At present, due to non-standard production and installation of multi-connected air conditioners, there is not enough nitrogen to fill the refrigerant pipes being welded during welding, and oxide scales will be formed on the inner surface of the copper pipes, and the oxide scales will follow the operation of the air conditioning system. Continuously accumulate at the filter 1 before the expansion valve 6 (the diameter of the expansion valve is usually relatively small, and it is easy to be blocked. In order to avoid the blockage of the expansion valve, filters 1 are usually installed on both sides of the expansion valve 6), and internal machine filtration often occurs The filter 1 is dirty and blocked, or the metal impurities produced by the wear and tear of the internal parts of the compressor will continue to accumulate in the filter between the expansion valves along with the flow of the refrigerant, which will eventually cause the filter to be blocked, and the internal...
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
Login to View More Abstract
The invention provides a filter clogging determination method, a multi-connected air conditioner and a readable medium, and relates to the technical field of air conditioners. The filter clogging determination method comprises the steps of acquiring the liquid pipe temperature, the air pipe temperature and the environment temperature of each indoor unit in the multi-connected air conditioner; judging whether the indoor unit is clogged according to the liquid pipe temperature, the air pipe temperature and the environment temperature of each indoor unit and in combination with the opening of expansion valves in the indoor units; acquiring the inlet temperature and the outlet temperature of a filter of the indoor unit when the indoor unit is clogged; the filter clogging determination method provided by the invention can judge the blockage of the indoor unit by detecting the liquid pipe temperature, the air pipe temperature of each indoor unit in the multi-connected air conditioner and theopening of the expansion valve accurately, and then by detecting the inlet temperature and the outlet temperature of the filter further, the filter clogging can be accurately determined, the fault ofthe indoor unit can be located, and the maintenance cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for determining filter clogging, a multi-connected air conditioner and a readable medium. Background technique [0002] At present, due to the non-standard production and installation of multi-connected air-conditioning internal units, especially the lack of nitrogen-filled welding to produce scale, the scale will continue to accumulate at the filter before the expansion valve with the operation of the air-conditioning system, often appearing inside The air conditioner filter is dirty and clogged, and the refrigerant in the indoor unit cannot be effectively circulated, which seriously affects the effect of the indoor unit. At this time, it is necessary to disassemble the unit to troubleshoot the problem. However, the current indoor units of air conditioners are mostly installed in the ceiling, and disassembly is very troublesome. Maintenance costs are higher. ...
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
Login to View More IPC IPC(8): F25B49/00F25B13/00
CPCF25B13/00F25B49/00F25B2313/023F25B2313/0311F25B2313/0314F25B2500/04
Inventor 张坤坤任小辉黄春刘合心
Owner NINGBO AUX ELECTRIC