Method and device for determining energy saving in heating energy-saving renovation projects

Abstract

This application discloses a method and device for determining the energy saving energy of a heating energy-saving renovation project. Firstly, determine the mathematical relationship between the cumulative energy consumption value and the cumulative value of the indoor and outdoor temperature difference time in the entire heating cycle before and after the project renovation, and then determine The cumulative value of the ideal indoor and outdoor temperature difference time under ideal conditions in a heating cycle, and finally calculate and determine the energy saving of the heating cycle according to the two mathematical relations before and after the renovation of the project determined above and the cumulative value of the ideal indoor and outdoor temperature difference time . The above-mentioned method and device correct the heating energy consumption before and after the energy-saving renovation to the same ideal condition, and then calculate the period energy saving according to the correction value of the heating energy consumption before and after the renovation, so that it is possible to avoid problems caused by different outdoor temperatures or substandard heating quality before and after the energy-saving renovation. The problem of large errors in the results of cycle energy saving.

Description

technical field [0001] The present invention relates to heating energy saving, and more specifically relates to a method and device for determining energy saving of heating energy saving transformation projects. Background technique [0002] Climate compensation section technology is a heating and energy-saving technology that uses optimal adjustment technology to adjust heat supply in time according to outdoor temperature changes, so as to ensure that the indoor temperature remains at the standard temperature. This technology avoids energy waste caused by excessive indoor heating temperature and saves energy. The effect is remarkable and the promotion area is large. With the large-scale implementation of the contract energy management model, accurate verification of project energy saving has become an urgent demand in the market. At present, the energy saving of this type of project is generally determined by the total energy consumption reduction in the heating season bef...

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Problems solved by technology

[0003] (1) It cannot solve the error problem caused by the difference of climate parameters before and after the transformation

Heating energy consumption is greatly affected by changes in the external climate, and the external climate parameters before and after the transformation cannot be completely the same, resulting in inaccurate verification methods for energy saving of the project, and frequent disputes

[0004] (2) It cannot solve the error problem caused by the substandard heating quality after the transformation

If after the energy-saving renovation, the energy-saving company lowers the indoor heating temperature, resulting in the heating temperature not meeting the standard, it will lead to greater energy saving. The current energy-saving verification method cannot make up for this loophole

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