KR20000046671A - Method for controlling operation of retaining heat in gas boiler - Google Patents

Abstract

PURPOSE: A method for controlling operation of retaining heat in gas boiler is provided to prevent freezing of a gas boiler, to inhibit the generation of water drops owing to low temperature, and to prevent the drain phenomenon, i.e., corrosion of piping owing to the generation of water drops by maintaining a heating temperature in room at a constant level when a user returns home, so that a productivity of a gas boiler is improved, efficiency thereof is maximized, and an economic loss is minimized. CONSTITUTION: A method for controlling operation of retaining heat in gas boiler comprises the following steps: a step for performing a heating operation after determining whether a heating operation or a hot water operation is required(S1-S5); a step for performing a normal combustion for heating by a temperature difference(.delta.T), if a state that the user's set temperature(Tset) is lower than a minimum temperature(X°C) is not maintained for a set time period(Ysec) during the heating operation(S6-S7); a step for performing a pause mode in which gas combustion in the gas boiler is extinguished, if a state that a thermistor(TH1) or a thermistor(TH2) is higher than a heating operation performing temperature(L°C) is maintained for a set time period(Msec) when a state that the set temperature(Tset) is lower than the minimum temperature(X°C) is maintained for a set time period(Ysec)(S8-S9); a step for recognizing again a temperature of adding a desired temperature(A°C) to the set temperature(Tset) as a set temperature(Tset1), performing the heating for retaining heat, and displaying the rapid heating, if the thermistor(TH1) or the thermistor(TH2) is lower than a heating operation performing temperature(L°C) or if it is maintained within the set time period(Msec)(S10-S11); and a step for determining again whether a state that the thermistor(TH1) or the thermistor(TH2) is higher than the heating operation performing temperature(L°C) is maintained for the set time period(Msec) or not based on a temperature difference(.delta.T) between the thermistor(TH1) and the thermistor(TH2)(S12, S8).

Description

Insulation control method of gas boiler

The present invention relates to a method for controlling the warm operation of a gas boiler, and in particular, to prevent the freezing of the gas boiler by maintaining and constantly operating the temperature of the indoor heating when the user who uses the gas boiler returns home after going out. The present invention relates to a method of controlling the rapid operation of a gas boiler to suppress the production of water by low temperature and to prevent the drain phenomenon, that is, corrosion, thereby improving the productivity and maximizing the efficiency of the gas boiler.

In the conventional gas boiler, the gas boiler is operated at a low temperature to prevent freezing. However, the gas boiler is operated at a lower temperature due to the characteristics of the gas boiler. Thus, water is generated in the pipe of the gas boiler. There is a problem that the piping of the boiler is corroded.

In addition, since the user using the gas boiler has to operate the gas boiler before going out, the user using the gas boiler has always been a problem that the inconvenience is increased.

Therefore, the user who uses the gas boiler at all times does not prevent the generation of water in the gas boiler pipe, and thus the user always feels the danger of gas and the life of the device is shortened due to corrosion of the equipment, thereby reducing the productivity of the gas boiler and maximizing the efficiency. There is no problem.

The present invention has been made in order to fundamentally cure the above-mentioned conventional problems, and has the following objectives.

When the user who uses the gas boiler in the winter goes out after returning home, it keeps the temperature of the room heating constant so as to prevent the freezing of the gas boiler and suppress the generation of water by low temperature. The purpose of the present invention is to provide a method of controlling the warm operation of a gas boiler to prevent corrosion, to improve the productivity of the gas boiler, to maximize efficiency, and to minimize economic losses.

1 is a schematic configuration diagram of a gas boiler to which the present invention is applied;

2 is a flow chart for practicing the method of the present invention.

<Explanation of symbols for main parts of drawing>

1: gas boiler 10: combustor

12: burner group 13: blower

20: water tank 21: high water level sensor

23: water separator 30: secondary heat exchanger

32: low water level sensor 34: direct inflow pipe

36: three-way side 37: heating hot water supply pipe

TH1, TH2: Thermistor

In order to achieve the above object will be described with reference to the accompanying drawings, Figures 1 and 2.

Figure 1 shows a gas boiler (1) to which the control method of the present invention is applied, which is installed in a casing (2) of the gas boiler (1) to burn a gas to heat hot water for heating or hot water supply (10). ), A water tank 20 for storing heating circulation water, and a secondary heat exchanger 30 having different paths for circulation of hot water and cold water.

At this time, a burner group 12 including a plurality of burners is formed in the casing 11 of the combustor 10, and a primary heat exchanger 14 is installed in the upper direction thereof to prevent overheating and the water passing therethrough. The burner group 12 is heated, and a blower 13 for supplying combustion air is installed at the bottom of the combustor casing 11, and the burner group 12 is provided near the burner group 12. The spark coupler 15 for ignition and the frame rod 16 for detecting the ignition of the burner group are installed, and an exhaust unit 18 for discharging the exhaust gas is provided on the upper surface of the combustor casing 11. It is formed through the casing 2 of 1).

In addition, a gas pipe 50 for supplying gas is installed below the burner group 12, wherein two electron valves 51 and 52 for passing the gas at the time of energization and a proportional valve for adjusting the gas supply amount are provided. 53 is provided upstream of the gas pipe 50 with respect to the gas supply path.

In addition, the water tank 20 has a high water level detection sensor 21 for detecting the quantity of water in the water tank, an overflow pipe 22 for discharging excess water, and a low water level detection for detecting whether water is empty in the pipeline. The sensor 32, the heating return pipe 24 in which the water separator 23 is installed, and the water supply pipe 25 for supplying water to the primary heat exchanger 14 by recovering the heating water rotated on the floor. A circulation pump 26 for adjusting the circulation of water is installed downward.

On the other hand, in the secondary heat exchanger 30, thermistor 1 (TH1) for detecting the direct heating and tapping side temperature of hot water supplied to the user by discharging water through tap water and thermistor 2 (TH2) for detecting the temperature of the heating and returning side. The hot water discharge tube 31 is attached, the cold water from the outside of the gas boiler flows into the water flow switch 33 for detecting the presence or absence of water flow and a certain amount according to the direct water temperature to obtain a stable temperature characteristics The direct inflow pipe 34 and the water supply pipe 25 having a mechanical automatic quantity control device are connected to the heating hot water supply pipe 37 through which water for heating passes through the three-way valve 36.

In addition, between the heating return pipe 24 and the direct water inlet pipe 34 is provided with a tap water supply side 35 for replenishing water when the water tank 20 is insufficient, clogging of the heating filter, heating distributor The bypass pipe 38 is installed to prevent the pressure from rising inside the gas boiler 1 and to circulate the flow of water by making an internal closed circuit of the gas boiler 1 when the heating pipe is blocked. The low temperature sensing thermistor TH3 (not shown) is formed in the casing 2 of the gas boiler 1.

In addition, Figure 2 is a flow chart illustrating a control method for carrying out the present invention, when the power of the gas boiler is turned on (ON) to check the connection state of the remote control installed in a certain place in the room to display in error mode when there is a problem If there is no abnormality, determine whether it is heating operation or hot water operation, and then perform heating operation, and the minimum temperature indicated by the user's using the gas boiler (Tset) displayed on the remote control display of the gas boiler during the heating operation. Determining whether the state below (X ° C) is maintained for the set time (Ysec), otherwise heating normal combustion is performed by the temperature difference (ΔT), and the set temperature (Tset) is the minimum temperature (X ° C). If the state below () is maintained for the set time (Ysec), the state in which the thermistor (TH1) or thermistor (TH2) is higher than the heating operation execution temperature (L ° C) The idle mode step of extinguishing gas combustion of the gas boiler when it is maintained for the set time (Msec), and when the thermistor (TH1) or thermistor (TH2) is less than the heating operation running temperature (L ℃) or the set time (Msec) In order to prevent drainage, ie, corrosion of the pipe, the heating and heating are performed and displayed by re-recognizing the temperature obtained by adding the predetermined temperature (A ° C.) to the set temperature (Tset1) to prevent the corrosion of the pipe. The thermistor TH1 or thermistor if the temperature difference ΔT between TH1 and thermistor TH2 is an absolute value and the time for which the slope of the temperature difference ΔT is in equilibrium is maintained for the set time Usec. And re-determining whether or not the state at which TH2 is greater than the heating operation execution temperature L ° C is maintained for the set time Msec.

Further, the reset temperature Test1 is made larger than the minimum temperature (X ° C) and the set temperature (Tset) indicated on the remote control display of the gas boiler and smaller than the heating operation execution temperature (L ° C) and the maximum temperature (Hicut).

On the other hand, the warming operation is made to forcibly extinguish gas combustion after a certain time.

In the present invention, when the power of the gas boiler is turned on (S1), the connection state of the remote controller installed at a certain place in the room is checked (S2), and when there is an error, the error mode is displayed (S3). At the time of determining whether the heating operation or hot water operation (S4) to achieve the hot water operation (S5) in the hot water mode, the heating operation is operated in the heating mode.

At this time, when the user using the gas boiler keeps the room temperature constant even after going out, the temperature set by the user is lower than the minimum temperature (X ℃) indicated on the remote control display of the gas boiler for the set time (Ysec). If it is maintained (S6), otherwise heating normal combustion is operated by the temperature difference (ΔT). (S7)

Further, when the set temperature Tset is less than the minimum temperature (X ° C) for the set time (Ysec), the thermistor (TH1) or thermistor (TH2) is the heating operation execution temperature (L ° C). If the abnormal state is maintained for a predetermined time (Msec) (S8) is operated in the idle mode (S9) to extinguish gas combustion of the gas boiler and the thermistor (TH1) or thermistor (TH2) is heating operation running temperature (L ℃) If less than or less than the set time (Msec) to re-recognize the temperature that the predetermined temperature (A ℃) is added to the set temperature (Tset) to the set temperature (Tset1) to prevent the drain phenomenon, that is, the corrosion of the pipe (S10) The heating time is performed to display (S11), the time difference (ΔT) of the thermistor (TH1) and thermistor (TH2) is an absolute value and the time (Usec) the slope of the temperature difference (△ T) to maintain the equilibrium Is maintained during (S12) the thermistor (TH1) or The thermistor TH2 is configured to be re-executed in step S8 of determining whether the state in which the thermistor TH2 is higher than the heating operation execution temperature L ° is maintained for the set time Msec.

As described above, the present invention has the effect of preventing the freezing of the gas boiler and the generation of water by the low temperature by maintaining a constant temperature of the room heating when the user who uses the gas boiler in the winter after going home It is apparent that the invention is very useful invention that can achieve various effects such as to prevent the drain phenomenon, that is, corrosion in the pipe, thereby improving the productivity of the gas boiler as well as maximizing efficiency.

Claims (3)

If you turn on the gas boiler, check the connection status of the remote controller installed at a certain place in the room. If there is a problem, display it in error mode. If there is no problem, determine whether it is heating operation or hot water operation. Forming step; If the temperature (Tset) set by the user using the gas boiler during the heating operation is less than the minimum temperature (X ° C) indicated on the remote control display of the gas boiler, it is determined whether it is maintained for the set time (Ysec). Heating normal combustion is performed by the temperature difference ΔT; When the set temperature Tset is less than the minimum temperature (X ° C) for the set time (Ysec), the thermistor (TH1) or thermistor (TH2) is higher than the heating operation execution temperature (L ° C). An idle mode step of extinguishing gas combustion of the gas boiler when the state is maintained for a set time (Msec); When the thermistor TH1 or thermistor TH2 is less than the heating operation execution temperature (L ° C) or within the set time (Msec), a predetermined temperature (Tset) is set to the set temperature (Tset) to prevent drainage or corrosion of the pipe. Performing heating and heating by re-recognizing the combined temperature of A ° C.) as the set temperature (Tset1); If the temperature difference ΔT between the thermistor TH1 and the thermistor TH2 is an absolute value and the time for which the slope of the temperature difference ΔT is in equilibrium is maintained for the set time Usec, the thermistor TH1 or And a step of re-determining whether or not the thermistor (TH2) is longer than the heating operation execution temperature (L ° C) is maintained for the set time (Msec). The method of claim 1, The reset temperature Tset1 is larger than the minimum temperature (X ° C) and the set temperature (Tset) indicated on the remote control display of the gas boiler and is smaller than the heating operation execution temperature (L ° C) and the maximum temperature (HiCut). Insulation control method of gas boiler. The method of claim 1, The warming operation control method for the warming operation of the gas boiler, characterized in that for a predetermined time passes forcibly extinguishing gas combustion.