Method for optimizing heating and controlling energy conservation

Abstract

The invention relates to the technical field of automatic control and particularly relates to a method for optimizing heating and controlling energy conservation. The method is characterized by comprising the following steps: according to the type of heating equipment, a user selects a corresponding heating curve model; temperature is calculated according to local outdoor heating for selecting a certain heating curve locally applicable and then a time-sharing room temperature value and a ramped heating rate are set to collect the measured value of outdoor temperature; a mathematical model is used for calculating and generating the optimal setting value of supply water temperature changing in real time with the outdoor temperature to obtain the measured value of the supply water temperature; the measured value of the supply water temperature is compared with the optimal setting value of the supply water temperature; and PI controlling operation is conducted and an PI output value accurately controls the on-off of an electric control valve in real time to adjust heating volume. Based on the guarantee of room temperature suitability, the method can effectively improve the control accuracy of the supply water temperature and energy-saving efficiency of a heating system, further provides a more humanized man-machine communication interface and has the prominent advantages of convenient operation, strong applicability, high energy-saving efficiency and the like.

Description

Technical field: [0001] The invention relates to the technical field of automatic control, in particular to an optimized energy-saving control method applied to a heat source heating system. Background technique: [0002] With the development of society and economy, "energy saving and emission reduction" has become the focus of the world, and it is also the focus of my country's harmonious and sustainable development. Among many energy-saving fields, building energy conservation bears the brunt. It is reported that the country's current energy consumption for heating and heating accounts for about 10% of the total energy consumption of the whole society, and the proportion in the northern region is even as high as 20%. As for the automatic control technology for heat source heating systems, the current energy-saving control method adopted by similar foreign products is: take the outdoor temperature as an independent variable, and calculate a number of heating systems suitab...

AI Technical Summary

Problems solved by technology

[0003] According to the use effect and research findings, the existing products have serious limitations, mainly in: first, the heating curve is single, and the existing products are only suitable for radiators, and cannot adapt to the floor radiation heating and heating that have been widely used at present. Air-conditioning fan-coil heating equipment, for the latter only the radiator heating curve is used instead

Second, the existing products are inconvenient to select and adjust the heating curve suitable for the local area, and it is difficult to set it accurately

Third, because the setting of the heating curve is inconvenient and difficult to be accurate, the control accuracy of the water supply temperature deviating from the ideal set value is low. The relevant European standards for similar foreign products are: when the water supply temperature is not higher than 60 degrees Celsius, the accuracy It is lower than or equal to 3 degrees Celsius. When the water supply temperature is higher than 60 degrees Celsius, the accuracy is lower than or equal to 5 degrees Celsius. Fourth, the step method adopted in the existing time-sharing temperature rise control mode is likely to cause frequent movements of the electric control valve, and the adjustment big-amplitude

The above deficiencies have seriously restricted the effective play of the energy saving effect.

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