A central heating heat distribution method and system suitable for on-off adjustment mode

Abstract

The invention relates to a centralized heating heat allocation method and system suitable for an on-off adjustment mode. The heat allocation method includes the steps that heating heat consumption is calculated through an on-off time and area method, and heat allocated to each house is calculated through a built-in special calculation method according to the user indoor temperature and the outdoor temperature which are measured in real time. The heat allocation system comprises an indoor information acquisition module, an on-off control module, an information acquisition and allocation module and an outdoor information acquisition module, wherein the indoor information acquisition module is used for measuring the indoor temperature; the outdoor information acquisition module is used for measuring the outdoor temperature; the on-off control module is used for conducting on-off control on a valve according to the indoor temperature fed back by the indoor information acquisition module; the outdoor information acquisition module transmits the acquired outdoor temperature to the information acquisition and allocation module which allocates heat according to the method.

Description

technical field [0001] The invention relates to a method for apportioning heat in a central heating system based on an on-off adjustment mode, and belongs to the field of heating, ventilation and air conditioning. Background technique [0002] The "heat supply reform" centered on "household adjustment" and "metering and charging" is an important part of my country's building energy conservation work. JCJ173-2009" and Chinese patent "A Method and System for Simultaneously Realizing Heat Regulation and Heat Metering" (Application No. 200610114686.2 Application Date 2006.11.21), provide a user heat allocation of "on-off time area method" measurement method. This method achieves the purpose of controlling the room temperature by on-off control of the user's heating circulating water. At the same time, based on the accumulated valve opening time and heating area of ​​each heating user, the heating heat consumption of the entire building is allocated and charged according to the he...

AI Technical Summary

Problems solved by technology

[0003] (1) The user's private modification of the radiator or insufficient design precision of the radiator will cause unreasonable heat distribution

The reasonable premise of "on-off time area method" is that the actual area of ​​the radiator completely matches the required area, but the actual situation is that on the one hand, there is inevitably a certain degree of error in the design itself, and on the other hand, users modify and increase without permission. The phenomenon of radiators is common. As a result, users with large radiators share less heat and pay less heat bills; on the contrary, users with smaller radiators share more heat and pay more heat bills. Objectively existing unreasonable phenomena lead to the "on-off time area method" that apportions heat according to the cumulative opening time of the valve and the heating area cannot be fully accepted by users, and its promotion and application are limited

[0004] (2) The difference between the user's actual flow and the design flow will cause unreasonable heat distribution

Another prerequisite for the reasonable heat allocation of the "on-off time area method" is that the actual flow of the user needs to fully match the demand flow, but the actual situation is that there is inevitably a certain degree of error in the design itself, and it is difficult to achieve the design flow. On the other hand, due to the congenital imbalance of the heat user itself, it is necessary to install an artificial adjustment system and carry out fine manual adjustments to make the "on-off time method" meet better accuracy requirements, and this is true in actual engineering. It is difficult to realize in the middle, some users often have more traffic than demand, and some users have less traffic than demand, which will lead to less heat sharing for users with more traffic, and more heat sharing for users with less traffic, which will also make according to the valve The "on-off time area method" of accumulative opening time and heating area apportionment of heat cannot be accepted by users, and its promotion and application are limited

[0005] (3) In the actual operation process, users with higher room temperature will transfer heat to adjacent rooms with lower room temperature, which will cause the valve opening time of users with high room temperature to increase compared with the normal heating of neighbors, and more heat will be shared. This unreasonable situation If the difference is large, the "on-off time area method" that apportions heat according to the cumulative opening time of the valve and the heating area cannot be accepted by users, and its promotion and application will be limited.

[0010] To sum up, there are still many problems that have not been solved or overcome at present, according to the "on-off time area method" of apportioning heat according to the cumulative opening time of the valve and the heating area.

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