Geothermal heating control method and system

Abstract

The invention discloses a geothermal heating control method and system. The method comprises the steps that the outdoor temperature is obtained, and the outdoor comprehensive temperature is calculatedaccording to the outdoor temperature; the heating heat load ratio is calculated according to the outdoor comprehensive temperature, the indoor heating design temperature and the heating outdoor calculation temperature; according to the heating heat load ratio and the heating ground unit area heat dissipating capacity in the design state, the actually-needed heating ground unit area heat dissipating capacity after the first preset time is calculated; the water supply-return average temperature is determined according to the relation between the heating ground unit area heat dissipating capacity and the water supply-return average temperature based on the actually-needed heating ground unit area heat dissipating capacity; the water supply temperature is calculated according to the water supply-return average temperature and the water supply-return temperature difference; and the water supply temperature of heating equipment is controlled according to the water supply temperature after the second preset time, and the water supply flow of the heating equipment is calculated and controlled according to the heating heat load. According to the geothermal heating control method and system, the indoor temperature can be kept basically constant, and energy waste caused by too high indoor temperature is avoided.

Description

technical field [0001] The invention relates to the technical field of geothermal heating, in particular to a method and system for controlling geothermal heating. Background technique [0002] Floor radiant heating is a common heating method for central heating in cities and towns. Compared with traditional radiator heating, it has the advantages of small indoor temperature gradient, uniform temperature, good comfort, does not occupy indoor space, and low operating costs. In floor radiant heating, the heat is transmitted mainly in the form of radiation. The heat is evenly distributed and transmitted from bottom to top. The room is warm at the bottom and cool at the top, which is suitable for the physiological characteristics of the human body and gives people a natural sense of comfort. [0003] At present, residential central heating often adopts the method of billing by area. If the user's indoor temperature is too high, it will lead to waste of energy, increase the opera...

AI Technical Summary

Problems solved by technology

One is to open the doors and windows, which causes a large amount of heat to be discharged to the outside; after the indoor temperature drops, the heating system needs to replenish a large amount of heat, which repeats itself in a vicious cycle, resulting in a waste of energy

In addition, this adjustment method causes the indoor temperature to not be maintained within a comfortable temperature range, causing physical discomfort

The other is to close the valve on the floor radiation inlet jellyfish pipe, and then open the valve after the indoor temperature drops. Repeated adjustments are very inconvenient, and because of the large hysteresis of the adjustment, the indoor temperature fluctuates, which is easy cause a cold

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