On-off time area apportioning method based on climate compensation and on-off type heat metering device based on climate compensation

Abstract

The invention discloses an on-off time area method heat apportioning method based on climate compensation and an on-off type heat metering device based on climate compensation. Existing heating metering methods are compared and analyzed, the problems and the defects of the on-off time area method are summarized when the method is better than other heat metering methods, a relatively perfect method is put forward on the basis of theoretical research and experimental verification so as to solve the problems, according to adjusting periods of climate compensation, a novel heat apportioning scheme for a heat apportioning mode is determined, and the on-off time area method heat metering device based on climate compensation is developed and researched. The novel heat apportioning technology based on climate compensation is adopted, heat apportioned to various users are basically consistent with the user heat consumption, that is, the outdoor temperature change, the problem of heat apportioning difference in the same period within the same on-off time is solved, heat apportioning is fair and reasonable, and the principle that the same heat fee is paid under the condition of the same comfort level for the users having the same area is met.

Description

technical field [0001] The invention relates to an on-off time area apportionment method based on climate compensation and an on-off heat metering device. Background technique [0002] The purpose of the heating system to heat the building is to meet the needs of users for thermal comfort and ensure that the indoor temperature is within a certain range, such as (18±2)°C, to prevent users from experiencing excessive indoor temperature. During the operation of the system, due to changes in outdoor meteorological conditions and other factors, the heat load of the building will change accordingly. Therefore, in order to adapt the heat supply capacity of the heat source to the change of the user's heat load, it is necessary to adjust the temperature of the supply and return water of the heat source accordingly, so as to realize on-demand heating and save heating energy consumption. [0003] Recently, the main basis for apportionment calculation in the on-off time area method in ...

AI Technical Summary

Problems solved by technology

At present, the on-off time area method is based on the total valve on-time of each user at the end of the entire heating period, without considering the periodical change of the total heat supply caused by climate compensation adjustment, and apportioning the total heat supply at one time , ignoring the difference in heat consumption of users with different water supply temperatures in different periods of time for the same heat consumption time, resulting in an unfair problem in heat allocation

In addition, as long as one or several households perform on-off adjustment during a certain calculation and allocation period, the riser flow will definitely change, which will directly affect the user's heat. This method does not take into account the impact of changes in the hydraulic conditions of the heating system on the heating system. Influenced by volume, metering charges are unfair and just

For example: a vertical riser has 11 individual household heating systems, and the flow change law of a certain user is that the more users are closed, the greater the flow change is, that is to say, the heat consumption of the user is not only related to the opening time, but also related to the flow size , at the same opening time, the greater the flow rate, the greater the actual heat consumption. Obviously, it is not accurate enough to simply allocate heat according to the on-off time, and the change of hydraulic working conditions must be fully considered

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