Household metering and charging method and device for multi-split air conditioner
A multi-connected air conditioner and household metering technology, applied in the field of multi-connected air conditioner household metering and billing methods and devices, can solve problems such as difficult household billing, and achieve easy operation, accurate household metering, and strong versatility. Effect
Active Publication Date: 2021-02-23
TSINGHUA UNIV +1
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Problems solved by technology
[0006] The embodiment of the present invention provides a household-based metering and billing method and device for a multi-connected air conditioner, which is used to solve the current difficulty of directly using the operating parameters of a multi-connected air conditioner to calculate the cooling / heat of each indoor unit, resulting in difficulty in billing based on energy Principles and Accurately Carry out Household Billing Problems
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments 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 creative efforts fall within the protection scope of the present invention.
[0027] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected, or...
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The embodiment of the invention provides a household metering and charging method and device for a multi-split air conditioner. The method comprises the steps that the rated capacity of all indoor units and the rated opening degree, the actual opening degree and the minimum opening degree of expansion valves of the corresponding indoor units are obtained; the opening ratio coefficients of the expansion valves are determined, wherein the opening ratio coefficient of each expansion valve is determined by the ratio of the difference between the actual opening and the minimum opening of the expansion valve to the difference between the rated opening and the minimum opening of the expansion valve; the first refrigeration / heat of each indoor unit is determined according to the product of the opening ratio coefficient of the expansion valve and the rated capacity of the corresponding indoor unit. The method and the device are simple and convenient to operate and high in universality, and canaccurately perform household metering on refrigeration / heat of each indoor unit so as to realize household fair charging based on an energy type charging principle.
Description
technical field [0001] The invention relates to the technical field of air-conditioning billing, in particular to a multi-connected air-conditioning household metering and billing method and device. Background technique [0002] At present, as a cooling / heating system with multiple terminals and variable refrigerant flow, the multi-connected air-conditioning system is widely used in small and medium-sized buildings because of its flexible control, energy saving, and low operating costs. In order to realize the measurement and management of building energy consumption, it is particularly important to measure the performance of the multi-connected air-conditioning system and the measurement of energy consumption. [0003] Traditional household billing methods based on multi-connected air-conditioning systems include area apportionment method and time-based billing method. The area apportionment method is based on the area used by the user to evenly apportion the electricity b...
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Login to View More IPC IPC(8): G07F15/00F24F11/89G01K17/02F24F140/60
CPCG07F15/001F24F11/89G01K17/025F24F2140/60
Inventor 石文星肖寒松杨子旭石靖峰曹法立路海滨
Owner TSINGHUA UNIV