Charging system of tail end box of variable air volume central air conditioner and charging method

Abstract

The invention relates to a charging system of a tail end box of a variable air volume central air conditioner and a charging method, wherein the charging method comprises the following steps: A. a direct digital controller meters an instantaneous air volume value of the tail end box of the variable air volume air conditioner, and transmits the metered instantaneous air volume value to a belonged network controller; B. a variable air volume metering manager reads the above instantaneous air volume value from the network controller by a switch and carries out accumulation; C. the variable air volume metering manager transmits accumulated air volume information when the direct digital controllers of the tail end box of all the variable air volume air conditioners are in the charging time interval to a local charging processor; D. the local charging processor calculates the unit price of the cold quantity of the central air conditioner in the time interval; E. the local charging processorcalculates the cold quantity consumed by the tail end box of a certain variable air volume air conditioner; and F. the local charging processor calculates the consumed cold quantity cost according tothe cold quantity of the tail end box of a certain variable air volume air conditioner and the unit price of the cold quantity. The invention has simple charging mode, low cost, is charged according to actual usage and has reasonable charging mode.

Description

technical field [0001] The invention relates to a billing system and a billing method for a terminal box of a variable air volume central air conditioner. Background technique [0002] The variable air volume air conditioning system is an air conditioning system that adjusts the indoor temperature and humidity by changing the air supply volume. The variable air volume air conditioning system originated in the United States in the 1960s and has developed rapidly in Europe, America, Japan and other countries since the 1980s. The most important reason is that The VAV air-conditioning system has huge energy-saving advantages. At the same time, the VAV air-conditioning system will not have condensed water, and the system has low noise. [0003] But for the variable air volume air conditioning system, it is necessary to measure the air conditioning cost of each end user, and there is no good way to realize it at present. Therefore, many buildings using variable air volume central...

AI Technical Summary

Problems solved by technology

Since this method is only related to the use area of ​​the air conditioner, it is easy to calculate the related air conditioner cost

The air-conditioning fee for each billing period is also fixed. However, in actual use, the load of the air-conditioning is not constant.

Therefore, the fixed charging model of "big pot rice" is extremely unfair to users, and the charging method is unreasonable

[0004] Due to ignoring the actual usage of the central air-conditioning, the blind use of the central air-conditioning by the user is caused, and the waste of the use process is serious, so that the central air-conditioning system, especially the variable air volume central air-conditioning system itself has the advantages of "energy saving and environmental protection" nothing left

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