Method of controlling boiler

Abstract

Disclosed herein is a method of controlling a boiler. In the boiler control method, the boiler is controlled depending both on a room temperature and on a return water temperature, whereby, unnecessary operation of the boiler is minimized. Further, the boiler is controlled depending on a desired room temperature and a corresponding return water temperature in a non-sleeping time zone, and the boiler is variably controlled, in the sleeping time zone, within a variable sleeping-time room temperature range and a variable sleeping-time return water temperature range. Moreover, in the present invention, a temperature control deviation is within ±0.5° C. and a return water temperature control deviation is within ±1° C. so that the room temperature and the temperature of a floor of the room can be maintained constant. Thus, energy consumption can be markedly reduced.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Korean Application No. 10-2012-0063744 filed on Jun. 14, 2012, which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to a method of controlling a boiler and, more particularly, to a boiler control method in which the boiler is controlled depending both on a room temperature and on a return water temperature, thus minimizing unnecessary operation of the boiler, and in which after twenty-four hours are divided into a non-sleeping time zone and a sleeping time zone by a sleep start time and a wake-up time, the boiler is controlled depending on a desired room temperature and a corresponding return water temperature in the non-sleeping time zone, and it is variably controlled, in the sleeping time zone, within a variable sleeping-time room temperature range and a variable sleeping-time return water temperature range wh...

AI Technical Summary

Benefits of technology

The present invention provides a boiler control method that takes into account both room temperature and return water temperature to minimize unnecessary boiler operation. The method also divides the day into non-sleeping and sleeping time zones, controlling the boiler accordingly. Additionally, the method ensures a temperature control deviation of ±0.5°C for room temperature and ±1°C for return water temperature, which helps maintain constant room temperature and reduces energy consumption.

Problems solved by technology

However, in the conventional boiler control method, the boiler is operated or stopped only depending on the desired room temperature and the sensed room temperature, regardless of the return water temperature, resulting in an increase in energy consumption.

In other words, despite the fact that the return water generates a sufficient amount of heat to heat the floor of the room, if the sensed room temperature is lower than the desired room temperature, the boiler is operated regardless of the temperature of the return water, thus wasting energy.

Thereby, it may be difficult for the user to have a sound sleep due to an uncomfortably high room temperature.

In addition, there is a problem of wasting energy.

However, in the sleeping time zone, if the room temperature is controlled to be 25° C., the user may feel the heat to such an extent that he / she sweats and is not able to have a sound sleep.

In addition, energy consumption is unnecessarily increased.

Meanwhile, if the room temperature is controlled throughout the sleeping time zone to be lower than the room temperature of the non-sleeping time zone, the user may feel the cold when trying to fall sleep and have difficulty falling asleep.

In addition, the user may also feel cold at the wake-up time, in which case the user will feel uncomfortably cold when they get out of bed.

Therefore, in a section A1 in which the room temperature is higher than the desired room temperature Ts, additional energy is unnecessarily used.

Because the additional energy consumption in the section A1 is greater than the shortage of energy use in the section A2, an energy loss is caused by a difference between the additional energy consumption and the shortage of energy use.

Moreover, in the section A2, there is a problem in that heat shortage makes the floor feel cooler.

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