User heating caloric metering system

Abstract

The invention discloses to a heat metering system for heating of users, relating to a heat metering for heating. The heat metering system comprises a computer, a total heat meter and unit heat energy meters; the total heat meter and the unit heat energy meters respectively carry out the transmission of data information with the computer by a communication interface; the computer carries out metering through the following steps that: a flow distribution coefficient and a heat energy distribution coefficient of each user are preset; accumulated heat energy and flow data are read from the total heat meter; according to the preset flow distribution coefficient of the user, the flow of each user is calculated; the flow of each user is transmitted to the corresponding unit heat energy meter; the heat energy data of the user obtained through the calculation by the unit heat energy meter is received; whether the sum of the heat energy data fed back by each unit heat energy meter is equal to the accumulated heat energy in the total heat meter is judged; if yes, the steps are continued; otherwise, according to the preset heat energy distribution coefficient, a heat energy difference value is distributed, that is the user heat energy which is distributed with the difference value; and the user heat energy distributed with the difference value is transmitted to the unit heat energy meter.The heat metering system has the advantages of low cost and accurate metering.

Description

technical field [0001] The invention relates to a metering system for heating heat. Background technique [0002] One of the main heating methods in China is centralized heating. Heating buildings are mainly divided into single-pipe downstream heating and double-pipe parallel heating. The measurement of the user's heat in the single-pipe downstream heating method is usually based on the heat measurement formula of the CJ128-2000 heat meter industry standard Q = ∫ 0 t ρ q v Vhdt , In the formula: [0003] Q—the heat released (J); [0004] q v —The volumetric flow rate (M / h) of the heat meter water flowing through it; [0005] ρ—density of water flowing through the heat meter (kg / M); [0006] Δh—at the temperature of the inlet and outlet of the heat exchange system, the difference in enthalpy of water (J / kg); [0007] t—time. [000...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems of measurement error and high cost in the existing single-pipe downstream heating heating user heat measurement method, the present invention provides a user heating heat measurement system, which does not need to install a mechanical flow meter, greatly reducing the cost and reducing the The scale of project construction reduces the impact on users, and at the same time, more accurate data can be obtained

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