KR20170069097A - Gas boiler and heated water control method thereof - Google Patents

Gas boiler and heated water control method thereof Download PDF

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KR20170069097A
KR20170069097A KR1020150176350A KR20150176350A KR20170069097A KR 20170069097 A KR20170069097 A KR 20170069097A KR 1020150176350 A KR1020150176350 A KR 1020150176350A KR 20150176350 A KR20150176350 A KR 20150176350A KR 20170069097 A KR20170069097 A KR 20170069097A
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temperature
hot water
unit
value
amount
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KR101815993B1 (en
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이돈형
정준환
이원석
윤성서
이성욱
유홍위
이신혜
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롯데알미늄 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The present invention relates to a gas boiler and its hot water control method, and more particularly, to a gas boiler and its hot water control method, which comprises a sensing unit for sensing a flow rate and temperature of a hot water flow and a temperature of a water supply during a hot water stroke, an input unit for setting the temperature of hot water, And a control unit for controlling the combustion unit to be driven at a maximum amount of heat so as to calculate a temperature at which the hot water is operated at a maximum heat amount based on the maximum hot water amount and the required heat amount value, The time for raising the temperature of the hot water to the set temperature can be shortened.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas boiler,

The present invention relates to a gas boiler and its hot water control method, and more particularly, to a gas boiler and its hot water control method for controlling the hot water supply speed at the beginning of hot water use.

In general, boilers are used as a means for receiving heating and hot water, and these boilers are divided into various types depending on their usage and capacity.

The boiler includes a combustion unit for igniting and burning the supplied fuel, a heat exchange unit for transferring the heat generated in the combustion unit to the heating water and performing heat exchange in a high temperature state, and a heating water heat exchanged in a high temperature state, And a heating pipe circulated or supplied for supply. In addition, the boiler is divided into a gas boiler and an oil boiler depending on the fuel used in the combustion.

1 is a schematic view of a general domestic gas boiler.

1, a domestic gas boiler (hereinafter referred to as a "gas boiler") according to the related art is constructed by heating water supplied from a water tank 2 through a heat exchanger 3, And the generated heating water is supplied to the heating pipe 200 through the three-way valve 5 to be heated.

When the hot water is used, the gas boiler (1) exchanges hot water via the three-way valve (5) through a hot water heat exchanger (4).

The gas boiler 1 controls the room temperature based on a specific environment (for example, a set temperature).

For example, the gas boiler 1 detects the current heating temperature, compares the detected heating temperature with the temperature set by the user, and controls the heating temperature by controlling the boiler according to whether the heating temperature is large or small.

On the other hand, since the blower for supplying the combustion air to the combustion chamber of the gas boiler for supplying hot water has a large mass of the rotating body, the rotational speed can not change sharply. On the other hand, since the mass of the valve body is small, the fuel regulator (for example, the proportional valve) for supplying fuel to the combustion chamber can easily change the supply amount of the fuel.

Therefore, when the blower and the fuel regulator are independently controlled or simultaneously controlled, the amount of fuel supplied by the fuel regulator and the air volume of the blower are not appropriate in the process of changing the amount of fuel, resulting in an abnormality of the air-

The conventional combustion amount is calculated by feedforward control based on the set temperature, the input temperature, the quantity, and the thermal efficiency so that the set temperature set by the user can be obtained.

However, if the combustion amount is changed by the feedforward control, such as when the set temperature is changed, when the intake temperature or the water quantity changes, by the influence of the remaining heat amount due to the heat capacity of the heat exchanger to heat- , The hot water temperature set by the user is not obtained until the heat exchanger reaches thermal equilibrium.

Further, since the control of the air-fuel ratio is performed by the supply amount of the fuel, when the amount of fuel supplied by the air-fuel ratio correction changes, the obtained amount of heat changes. As a result, the hot water temperature set by the user may not be obtained by the air-fuel ratio correction.

That is, there is a problem that determining the amount of combustion only by the conventional feedforward control can not obtain the hot water temperature set by the user due to each error.

An example of a hot water temperature control technique for solving such a problem is disclosed in Patent Documents 1 and 2 below.

Patent Document 1 discloses a process of igniting a combustion unit when water flow is detected due to use of hot water; The combustion amount Q to be actually controlled by a value obtained by adding the feedforward combustion amount QFF, the heat exchange capacity correction combustion amount K, the air-fuel ratio correction combustion amount T, the proportional correction combustion amount P and the integral correction combustion amount I is calculated process; A difference ΔT1 between the set temperature Ts of the user and the input temperature Ti and a difference ΔT2 between the set temperature Ts and the tapping temperature To are determined and then the proportional variable B); Determining whether the calculated proportional variable B is greater than "1 "; Determining whether the proportional parameter B is greater than a predetermined maximum value if the determination result is larger than "1 "; Calculating a new combustion amount (Q) by multiplying the previously calculated combustion amount (Q) if the proportional variable (B) is not greater than the maximum value; A process of supplying a fuel to the combustion section in a quantity corresponding to the newly calculated combustion quantity Q; Thereafter, if it is judged that the water flow detection OFF signal is inputted and if the water flow detection OFF signal is not input, the process returns to the process of calculating the initial combustion amount Q and the water flow detection OFF signal is inputted, .

Patent Document 2 discloses a method of controlling a normal combustion amount by performing ignition when water flow is detected due to use of hot water and performing normal combustion amount control with a predetermined minimum heat amount Q1; Continuously detecting and storing the hot water supply temperature at a predetermined second time (t2) interval for a predetermined first time (t1) and updating the lowest temperature; Determining whether a predetermined first time (t1) which is the minimum temperature update time with respect to the hot water supply temperature has elapsed; Determining the lowest temperature among the hot water supply temperatures detected during the first predetermined time t1 as the direct water temperature Tin ° C if the first predetermined time t1 has elapsed; Calculating a temperature difference (T ° C) by subtracting the determined direct-on-air temperature (Tin ° C) from the set temperature (Tset ° C) of the user; It is determined whether the calculated temperature difference (T ° C) is less than a predetermined first temperature (A ° C), a temperature between a first temperature (A ° C) and a second predetermined temperature (B ° C) Sequentially judging whether or not the user is conscious; If the temperature difference (T ° C) is less than the predetermined first temperature (A ° C), the combustion amount of the combustion section is continuously controlled by the current combustion amount (Q2), and the second temperature (B ° C) (B < 0 > C), it is smaller than the maximum combustion amount of the corresponding hot water heater and the third combustion amount (Q3) is higher than the third combustion amount And a step of controlling the amount of combustion of the combustion section by increasing the fourth combustion amount (Q4) determined to be larger than the first combustion amount (Q4).

Korea Patent Registration No. 10-1261150 (issued on May 6, 2013) Korean Patent Registration No. 10-1304974 (issued on September 6, 2013)

However, in Patent Document 1, the difference between the set temperature of the user and the intake temperature, the difference between the set temperature and the hot water temperature is calculated, a proportional variable is calculated using a predetermined formula, and a new combustion amount is calculated using the calculated proportional variable Adjust the fuel supply.

In Patent Document 2, the lowest temperature among the hot water supply temperatures detected during the first predetermined time after the detection of the water flow is determined as the direct water temperature, the direct water temperature determined at the user's set temperature is subtracted, the temperature difference is calculated, The amount of combustion is controlled according to the result of comparison.

As described above, the hot water temperature control method of the hot water heater according to the prior art including Patent Documents 1 and 2 adjusts the combustion amount to be smaller than the maximum combustion amount by using the set temperature, the intake temperature, the set temperature and the hot water temperature, There is a problem that it takes much time to raise the hot water temperature to the set temperature.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gas boiler and its hot water hot water control method capable of minimizing a time for raising the temperature of hot water to be set to a set temperature.

Another object of the present invention is to provide a gas boiler and its hot water hot water control method which can control the output heat amount so as to raise the temperature of hot water to be heated to a set temperature by operating at a maximum heat amount in hot water hot water control.

In order to achieve the above object, a gas boiler according to the present invention includes a sensing unit for sensing a tap water flow rate and temperature, a water supply temperature during a hot water stroke, an input unit for setting a temperature of hot water to be tap water from a user, And a control unit for controlling the combustion unit to drive the combustion unit at a maximum amount of heat based on the set temperature.

The sensing unit may include a flow rate sensor for sensing the flow rate of the hot water spouted in the combustion unit during the hot water stroke, a first temperature sensor for sensing the temperature of hot water to be spouted, and a second temperature sensor And a detection sensor.

The control unit sets a constant value for calculating a temperature (hereinafter, referred to as 'operation temperature') operated at the maximum amount of hot water, and calculates a temperature by using Equation (1) And a signal generating unit for generating a control signal for controlling the driving of the combustion unit in accordance with the calculated temperature and heat amount.

Figure pat00001
[Equation 1]

The control unit controls the amount of heat to be finely adjusted by continuously differentiating and integrating the calorie value from the maximum value to the required calorie value when the operating temperature is reached, and the constant value is obtained as a result of comparison between the set temperature and the heating water temperature And is changed and set accordingly.

According to another aspect of the present invention, there is provided a hot water hot water control method for a gas boiler, comprising the steps of: (a) sensing a flow rate of warm water from a combustion unit using a flow rate sensor b) if the use of the hot water by the user is detected using the detection result of the step (a), the control unit ignites the combustion unit to drive to the maximum heat amount up to the temperature which is operated at the maximum heat amount of hot water And (c) finely adjusting and controlling the output heat quantity by continuously differentiating and integrating the heat quantity value from the maximum value to the required heat quantity value such that the hot water temperature becomes the set temperature set by the user when the operating temperature is reached .

Wherein the step (b) includes the steps of: (b1) comparing the set temperature with the heating water temperature in the temperature calculation unit of the control unit, and setting a constant value for calculating the operating temperature according to a result of the comparison, (b2) (B3) if the operation temperature is equal to or lower than 0, or if the hot water temperature is greater than the difference between the set temperature and the operation temperature, the combustion unit is operated at the maximum heat amount The method comprising the steps of:

Figure pat00002
... " (2) "

In the step (c), when the hot water temperature is equal to or less than the difference between the set temperature and the operating temperature, the output calorie is calculated according to Equation (3) to perform fine adjustment control.

Figure pat00003
&Quot; (3) "

Here, F is the feed forward heat amount calculated using the set temperature, the feed water temperature and flow rate, P is the proportional component value for controlling the micro heat amount, I is the integral value of the heat amount, Z is the decrease Calorie value.

As described above, according to the gas boiler and the hot water hot water control method of the present invention, it is possible to calculate the temperature that is operated by the maximum amount of hot water using the hot water maximum heat amount and the required heat amount value, So that the time for raising the temperature of the hot water to the set temperature can be shortened.

According to the present invention, when the temperature is reached which is operated with the hot water maximum calorie amount, an effect of being able to control at a set temperature set by the user by finely controlling the output calorie by continuously calculating an integral value from the calorie amount to the required calorie value Loses.

Accordingly, the present invention provides an effect that the temperature of the hot water is rapidly raised to the set temperature at the initial stage of use of hot water, thereby improving the satisfaction of the user and increasing the product selling power.

1 is a schematic view of a gas boiler according to the prior art,
2 is a block diagram of a gas boiler according to a preferred embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a hot water hot water control method of a gas boiler according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a gas boiler and its hot water control method according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the construction of a domestic gas boiler to which the present invention is applied will be described with reference to the structure of a domestic gas boiler according to the prior art shown in FIG.

That is, according to the present invention, a structure for controlling the temperature of the hot water to be spouted is driven by driving the combustion unit at the maximum heat amount in the domestic gas boiler according to the prior art shown in FIG. 1 according to the set temperature.

2 is a block diagram of a gas boiler according to a preferred embodiment of the present invention.

As shown in FIG. 2, the gas boiler 10 according to the preferred embodiment of the present invention includes a sensing unit 10 for sensing a tap water flow rate, a temperature and a water supply temperature during a hot water stroke, And a control unit 40 for controlling the combustion unit 11 to be driven at a maximum heat amount for rapid hot water tapping based on the set temperature.

The combustion unit 11 may include a burner (not shown) for burning gaseous fuel to generate high-temperature heat and a heat exchanger (not shown) for heating water using heat generated from the burner.

Here, the heat exchanger may be a condensing heat exchanger including a sensible heat exchanger and a latent heat exchanger, or a heat exchanger for a common gas boiler including a heat exchanger.

The combustion unit 11 is driven in accordance with a control signal of the control unit 40 and is connected to a supply unit that supplies gas, air, and water, respectively, and can receive gas, air, and water.

The sensing unit 20 includes a flow rate sensor 21 for sensing the flow rate of hot water to be spouted in the combustion unit 11 during the hot water stroke, a first temperature sensor 22 for sensing the temperature of hot water to be spouted, And a second temperature sensing sensor 23 for sensing the temperature of the water supplied to the water tank 11.

In addition, the sensing unit 20 includes a direct temperature sensor (not shown) that senses the temperature of the direct water supplied to the combustion unit 11 and a heated water temperature sensor (not shown) that senses the temperature of the heated water. As shown in FIG.

The input unit 30 may be provided on a remote controller provided separately from the main body so as to receive an operation command for controlling the operation of the gas boiler body from the user.

The input unit 30 sets an operation mode such as heating operation, hot water operation, heating and hot water operation, and a heating temperature and a hot water temperature, and transmits the set operation mode information and temperature information to the control unit 40.

The control unit 40 is provided as a central control unit for controlling the configuration of each device provided in the gas boiler 10 and controls the combustion unit 11 and the hot water piping or the hot water piping according to operating mode information and temperature information set through the input unit 30. [ It is possible to control driving of three sides (not shown) selectively supplied to the heating water pipe.

The control unit 40 checks the state of the gas boiler 10 at the time of using the hot water in the hot water temperature control process to check whether it is in a heating operation state and confirm the heating water temperature in the gas boiler 10 at present, It is possible to set an arbitrary constant value by comparing the temperature with the heating water current temperature.

For example, the constant value k may be variously set according to the specification of the gas boiler 10, and may be set to a value of about 20 to 25 in the present embodiment.

Then, the controller 40 may calculate the temperature (?) Operating at the maximum heating value of the hot water by substituting the constant value (k) into the following equation (1).

Figure pat00004

That is, the control unit 40 calculates the necessary heat amount by using the difference between the set temperature and the current hot water temperature, divides the difference between the maximum heat amount and the required heat amount by the constant value, and when the temperature reaches the temperature So as to continuously operate at the maximum heat amount.

Here, the required calorie value can be calculated by the tap water flow rate * (set temperature - direct water temperature) /0.88.

In addition, when the temperature reaches the operating temperature of the hot water maximum calorie amount, the control unit 40 continuously and differentially and integrally calculates the calorific value from the maximum value to the required calorie value for the control of the set temperature, have.

Here, the output calorie quantity Q can be calculated by the following equation (2).

Figure pat00005

Here, F is the feedforward heat quantity calculated using the set temperature, feed water temperature and flow rate, P is the proportional component value for controlling the micro calorie, I is the integral value of the heat amount, and Z is the maximum heat amount Is the reduced calorie value.

Therefore, F can be calculated by (set temperature - feed water temperature) * flow rate.

I can be set by the following equation (3).

Figure pat00006

To this end, the control unit 40 includes a temperature calculation unit 41 for calculating the constant value and calculating a temperature to be operated in the hot water maximum heat amount, a heat amount calculation unit 42 for calculating the heat amount using the set temperature and the hot water temperature, And a signal generating part 43 for generating a control signal for controlling the driving of the combustion part 11 according to the calculated temperature and the amount of heat.

The temperature calculating unit 41 can change the constant value according to the temperature interval and the current heating water temperature according to the comparison result between the set temperature and the current heating water temperature.

For example, when the set temperature is higher than the heating water temperature, the temperature calculating unit 41 sets the constant value to 25 or more and 50 if the set temperature is higher than the heating water temperature. If the set temperature is lower than the heating water temperature, The value can be set from 0 to less than 25.

Next, referring to FIG. 3, a hot water hot water control method of a gas boiler according to a preferred embodiment of the present invention will be described in detail.

FIG. 3 is a flowchart illustrating steps of a hot water hot water control method of a gas boiler according to a preferred embodiment of the present invention.

In step S10 of FIG. 3, the flow rate sensor 21 senses the flow rate of hot water from the combustion unit 11 while the hot water operation mode is set through the input unit 30, and the sensing signal is transmitted to the controller.

Then, the control unit 40 checks whether or not the tap water flow rate exceeding the preset flow rate is continuously detected for a preset time, for example, about 1 second, by using the sensing signal of the flow rate sensor 21 due to the use of hot water by the user (S12).

As a result of the inspection in the step S12, if the flow rate of the overflowing water over the set flow rate is continuously detected for the set time or more, the control unit 40 supplies the gas to the combustion unit 11 and operates the ignition unit to perform the ignition stroke in the combustion unit 11 (S14).

In step S16, the temperature calculating unit 41 of the control unit 40 sets a constant value, and calculates the temperature (?) At which the hot water maximum heat quantity is operated.

At this time, the calorie calculating unit 42 calculates the required calorie using the difference between the set temperature and the current hot water temperature, and the temperature calculating unit 41 calculates the difference between the calorific value And the temperature is calculated by dividing the temperature by the constant value and operating at the maximum heating value of the hot water.

In step S18, the control unit 40 determines whether the temperature (?) Operated at the calculated maximum amount of hot water is equal to or less than zero.

If it is determined in operation S18 that the temperature at which the maximum amount of hot water is operated is less than or equal to 0, the signal generating unit 43 generates a control signal for controlling the driving of the combustion unit 11 so as to operate at the maximum amount of hot water, 40) controls the steps S16 to S20 to be repeated.

On the other hand, if it is determined in operation S18 that the temperature at which the hot water reaches the maximum heat amount exceeds 0, the control unit 40 checks whether the hot water temperature is greater than the set temperature and the temperature (?) Operated at the hot water maximum heat amount (S22 ).

If it is determined in step S22 that the hot water temperature is lower than the temperature difference, the control unit 40 proceeds to step S20 to control the combustion unit 11 to operate at the maximum hot water amount.

On the other hand, if it is determined in step S22 that the hot water temperature is greater than the temperature difference, the control unit 40 continuously calculates the differential value and the integral of the heat value from the maximum value to the required heat amount according to Equation (2) Then, the control unit 40 controls the driving of the combustion unit 11 according to the calculated output calorie amount, thereby performing the fine calorie control operation (S24).

As described above, according to the present invention, the temperature at which the hot water maximum temperature is calculated by using the hot water maximum heat amount and the required heat amount value is calculated, and the combustion part is operated at the maximum heat amount to the calculated temperature to shorten the time for raising the hot water temperature to the set temperature .

In step S26, the control unit 40 determines whether or not the tap water flow rate over a predetermined set flow rate is continuously sensed for a preset time due to continuous hot water use by the user using the sensing signal of the flow sensor 21.

If it is determined in step S26 that the tap water flow rate is equal to or greater than the preset flow rate, the control unit 40 proceeds to step S24 to repeatedly perform the microcrystalline volume control operation.

On the other hand, if it is determined in step S26 that the tap water flow rate less than the set flow rate is continuously detected for a set time or more, the controller 40 controls the hot water operation to be terminated after the post-defrost operation.

Through the above process, the present invention calculates the hot water maximum calorie operating temperature by using the difference between the maximum calorie and the required calorie amount, operates the maximum calorie amount, and continuously calculates the integral from the maximum calorie amount to the required calorie value, Can be adjusted.

Although the invention made by the present inventors has been described concretely with the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

The present invention calculates the maximum calorific value of the hot water using the maximum calorie and the required calorie difference in the hot water operation mode and operates it at the maximum calorie value. When the calorie reaches the operating temperature, It is applied to the technology of hot water control method of regulating gas boiler.

10: Gas boiler 11: Combustion part
20: sensing part 21: flow rate sensing sensor
22, 23: first and second temperature sensors
30: input unit 40:
41: temperature calculating section 42: calorie calculating section
43: Signal generator

Claims (7)

A sensing unit for sensing a tap water flow rate and temperature during a hot water stroke,
An input unit for setting the temperature of hot water to be spouted from the user, and
And a controller for controlling the burner to be driven at a maximum amount of heat based on the set temperature set through the input unit. The method according to claim 1,
The sensing unit may include a flow rate sensor for sensing a flow rate of the hot water discharged from the combustion unit during a hot water stroke,
A first temperature sensor for sensing a temperature of hot water to be spouted and
And a second temperature sensor for sensing a temperature of water supplied to the combustion unit. 3. The apparatus according to claim 1 or 2, wherein the control unit
A temperature calculation unit for setting a constant value for calculating a temperature (hereinafter referred to as " operating temperature ") operated at the maximum hot water temperature and calculating the operating temperature according to Equation (1)
A calorie calculation unit for calculating a required calorie using the set temperature and the hot water temperature,
And a signal generating unit for generating a control signal for controlling the driving of the combustion unit according to the calculated temperature and the amount of heat.
Figure pat00007
[Equation 1] The method of claim 3,
Wherein the control unit continuously and differentially and integrally calculates a calorie value from a maximum value to a required calorie value when the operating temperature is reached,
Wherein the constant value is changed and set in accordance with a result of comparison between the set temperature and the heating water temperature. (a) sensing a flow rate of hot water to be spouted in a combustion unit using a flow rate sensor during a hot water stroke,
(b) if the use of the hot water by the user is sensed by using the detection result of the step (a), the control unit ignites the combustion unit to drive the heater to the maximum heat amount up to the temperature Step and
(c) finely adjusting and controlling the output heat quantity by continuously and differentiating and integrating the heat quantity value from the maximum value to the required heat quantity value such that the hot water temperature becomes the set temperature set by the user when the operating temperature is reached A hot water hot water control method of a gas boiler. 6. The method of claim 5, wherein step (b)
(b1) comparing the set temperature with the heating water temperature in the temperature calculating unit of the control unit, and setting a constant value for calculating the operating temperature according to the comparison result,
(b2) calculating the operating temperature by substituting the constant value into Equation (2)
(b3) activating the combustion unit at a maximum heat amount if the operation temperature is 0 or less, or if the hot water temperature is greater than the difference between the set temperature and the operation temperature.
Figure pat00008
... " (2) " The method according to claim 5 or 6,
Wherein the step (c) includes calculating the output heat quantity by the equation (3) to control the fine adjustment if the hot water temperature is equal to or less than the difference between the set temperature and the operation temperature.
Figure pat00009
&Quot; (3) "
Here, F is the feed forward heat amount calculated using the set temperature, the feed water temperature and flow rate, P is the proportional component value for controlling the micro heat amount, I is the integral value of the heat amount, Z is the decrease Calorie value.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101990855B1 (en) * 2017-12-26 2019-06-19 린나이코리아 주식회사 Method for automatically switching hot water and heating of a boiler with low-temperature hot water storage tank
KR20210067511A (en) * 2019-11-29 2021-06-08 린나이코리아 주식회사 Method for Combustion Control for Combustion Area Improve of Boiler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2715006B2 (en) * 1991-03-12 1998-02-16 リンナイ 株式会社 Water heater control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101990855B1 (en) * 2017-12-26 2019-06-19 린나이코리아 주식회사 Method for automatically switching hot water and heating of a boiler with low-temperature hot water storage tank
KR20210067511A (en) * 2019-11-29 2021-06-08 린나이코리아 주식회사 Method for Combustion Control for Combustion Area Improve of Boiler

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