Method, device and system for detecting water flow of hot water machine unit
A detection method and technology for water heaters, applied in refrigerators, refrigeration components, lighting and heating equipment, etc., can solve problems such as reducing the service life of water heater units, and achieve the effect of improving service life
Active Publication Date: 2018-01-23
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] Embodiments of the present invention provide a water flow detection method, device and system for a hot water machine unit, to at least solve the problem of heat reduction caused by the detection of a relatively small water flow rate of the unit in the related art only when the hot water machine unit reports a high pressure fault. Technical Problems of Service Life of Water Machine Units
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[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0030] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a water flow detection method, device and system of a hot water machine unit. Wherein, the method includes: obtaining the temperature difference between the inlet and outlet water of the hot water machine unit at the first ambient temperature, wherein the temperature difference between the inlet and outlet water is the difference between the inlet water temperature and the outlet water temperature of the hot water generator unit at the first ambient temperature; Whether the water temperature difference is greater than the reference temperature difference between the inlet and outlet water, where the reference temperature difference between the inlet and outlet water is the difference between the inlet water temperature and the outlet water temperature of the hot water unit at the first ambient temperature and the standard water flow; and when the inlet and outlet water temperature is detected When the temperature difference is greater than the reference temperature difference between inlet and outlet water, it is determined that the water flow of the hot water unit is too small. The invention solves the technical problem in the related art that the water flow rate of the unit is too small to be detected only when the hot water unit reports a high-pressure fault, which results in reducing the service life of the hot water unit.
Description
technical field [0001] The invention relates to the field of hot water machines, in particular to a water flow detection method, device and system for a hot water machine unit. Background technique [0002] According to the after-sales failure statistics of water heater units, it is found that the proportion of compressor failures is relatively high, and compressor failures are mostly caused by compressor wear or coil burnout due to excessive load. After research, it is found that when the hot water machine unit has high pressure and overload protection, the hot water machine unit usually operates in the circulation mode. Under normal circumstances, the water flow rate of the hot water machine unit in the circulation mode is determined according to the temperature difference of 5°C under the nominal working condition. Under the rated circulation flow rate, the water outlet temperature of the hot water machine unit will not exceed the standard. The high pressure and overload...
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IPC IPC(8): F25B49/02
Inventor 谭泽汉陈万锐杨文军刘斌莫彬朝牛安
Owner GREE ELECTRIC APPLIANCES INC