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Cold-amount distribution metering method and device for central air conditioner

A technology of cooling capacity distribution and central air conditioning, which is applied in measurement devices, air conditioning systems, heating methods, etc., can solve the problems of electric cold water valve cannot be effectively closed, increase accumulated cooling capacity coefficient, and reduce accumulated cooling capacity coefficient, etc. The effect of reducing expenses, reducing costs, and improving utilization

Active Publication Date: 2009-06-24
BASIC INTELLIGENCE TECH
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AI Technical Summary

Problems solved by technology

However, this method only measures and detects the running time and wind speed of the fan coil unit.
For the following situations, effective detection and calculation cannot be implemented, and it may happen that the user does not actually use the central air conditioner and the metering equipment miscalculates
[0006] 1. The fan coil electric cold water valve at the end of the central air conditioner cannot be effectively closed due to other reasons, resulting in a reduction in the cumulative cooling capacity coefficient
[0007] 2. The central air-conditioning refrigeration main unit is not running, but the fan coil unit is running, resulting in an increase in the cumulative cooling capacity coefficient

Method used

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  • Cold-amount distribution metering method and device for central air conditioner
  • Cold-amount distribution metering method and device for central air conditioner
  • Cold-amount distribution metering method and device for central air conditioner

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Embodiment Construction

[0035] Such as figure 1 As shown, the invention mainly includes a control module 101 and an output module 102. The control module 101 includes a microprocessor 103 and a power supply circuit 104, a display circuit 105, and an M-BUS communication circuit 106 connected to the microprocessor 103 respectively. , a control keyboard 107, a temperature sensor 108 and an analog communication circuit 109, and the output module 102 includes another microprocessor 110 and a power circuit 113 connected to the microprocessor 110, a temperature sensor 112, an analog communication circuit 111 and The driving execution circuit 114 is connected and communicated with the control module 101 and the output module 102 through respective analog communication circuits 109 and 111 .

[0036] Such as figure 2 As shown in, the control module 1 (ie figure 1 101) in the room is embedded on the wall for easy operation, the temperature sensor 5 for detecting the indoor temperature is installed inside th...

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Abstract

A method for metering distribution of cooling amount generated by central air-conditioning includes calculating out cooling coefficients of KjH, Kjm and KjL according to wind speed of air-conditioning coil and calculating out cold water valve opening periods of t H, t M and t L corresponding to three different wind speed of said coil, utilizing formula of E i=t H .K j H + t m .K j M + t L .K j L to calculate out cooling amount coefficient Ei for realizing a reasonable charge manner.

Description

technical field [0001] The invention relates to a billing method for a central air conditioner, in particular to a cooling capacity distribution and metering method for a central air conditioner and a device thereof. technical background [0002] At present, building energy consumption has become the main reason for the growth of energy consumption. The energy consumption of central air-conditioning accounts for 50-60% of the energy consumption of the entire building. Among them, the high energy consumption of air-conditioning equipment is one aspect, and the artificial waste caused by unreasonable charging methods is another main reason. [0003] At present, there are two types of air-conditioning billing methods commonly used. [0004] The first one is to measure the chilled water flowing through the end of the central air conditioner and the temperature difference between the supply and return water, and to accumulate the cooling capacity, although it is more accurate. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M19/00F24F1/00F24F11/00F24F11/053F24F11/76G01M99/00
Inventor 谭文胜
Owner BASIC INTELLIGENCE TECH
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