KR101797649B1 - Heating control method based exhaust temperature - Google Patents

Heating control method based exhaust temperature Download PDF

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Publication number
KR101797649B1
KR101797649B1 KR1020150174663A KR20150174663A KR101797649B1 KR 101797649 B1 KR101797649 B1 KR 101797649B1 KR 1020150174663 A KR1020150174663 A KR 1020150174663A KR 20150174663 A KR20150174663 A KR 20150174663A KR 101797649 B1 KR101797649 B1 KR 101797649B1
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South Korea
Prior art keywords
temperature
heating
exhaust temperature
exhaust
predetermined
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KR1020150174663A
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Korean (ko)
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KR20170068002A (en
Inventor
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
    • 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
    • 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

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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)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

The present invention relates to an exhaust temperature-based heating control apparatus and method for automatically controlling heating according to an exhaust temperature, and capable of automatically stopping the heating apparatus when the exhaust temperature becomes too high as compared with a heating apparatus, An exhaust temperature sensing unit for sensing temperature; And a controller for controlling the heating based on a result of comparison between the exhaust temperature sensed by the exhaust temperature sensing unit and a predetermined set temperature for determining whether the heating system is normal or not and the abnormal temperature holding time, The control unit is implemented so that the heating is automatically controlled according to the exhaust temperature. However, when the exhaust temperature becomes too high due to the heating device, the heating device is automatically stopped to ensure safety.

Description

[0001] The present invention relates to a heating control method based on exhaust temperature,

The present invention relates to a heating control based on exhaust temperature. More particularly, the present invention relates to an exhaust control system for automatically controlling heating according to exhaust temperature, and automatically stopping the heating device when the exhaust temperature becomes excessively higher than a heating device, Temperature-based heating control method.

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.

A typical domestic gas boiler room temperature control scheme controls the room temperature based on a specific environment (e.g., set temperature). For example, the current heating temperature is detected, the detected heating temperature is compared with the temperature set by the user, and the heating temperature is controlled by controlling the boiler according to the magnitude of the detected heating temperature.

Prior arts for gas boilers are disclosed in Patent Documents 1 and 2 below.

The prior art disclosed in Patent Document 1 can recognize the fact that the burner is turned on / off repeatedly within a predetermined time by detecting the number of repetitions of the rising and falling of the heating water supply temperature. Therefore, By requesting the extension of the burner's off-period, the problem caused by the repeated on / off operation of the burner is solved.

In the prior art disclosed in Patent Document 2, in the hot water and heating water control device by supplying water to the condensing gas boiler, the water heat exchanger is configured to be firstly passed through the hot water heat exchanger after supplying the water, Thereby improving the temperature and efficiency of the heating water.

Korean Registered Patent Registration No. 10-0753582 (Registered on Mar. 23, 2007) Korean Patent Publication No. 10-2005-0006862 (published on Jan. 17, 2005)

However, the general domestic gas boiler as described above is a simple method of controlling the indoor temperature by comparing the temperature set by the user and the heating temperature. Even if the heating is not normally performed due to the heating system, There is a disadvantage in that it is impossible to stop the heating system for heating or compensate for the deficient heat quantity.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to automatically control the heating according to the exhaust temperature and automatically stop the heating device when the exhaust temperature becomes very high And an object of the present invention is to provide a heating control method based on an exhaust temperature which can provide safety.

Another object of the present invention is to provide an exhaust temperature-based heating control method capable of realizing optimal heating through a calorie correction operation when the exhaust temperature is lower than a heating control temperature (predetermined temperature).

According to an aspect of the present invention, there is provided an exhaust temperature-based heating control apparatus including an exhaust temperature detecting unit for detecting an exhaust temperature; And a control unit for controlling the heating based on the result of the comparison between the exhaust temperature detected by the exhaust temperature sensing unit and a predetermined set temperature for determining whether the heating system is normal or not and the abnormal temperature holding time.

The control unit may include a preset temperature storage unit storing a preset temperature and a predetermined temperature for determining whether the heating is abnormal; A temperature comparator for comparing the exhaust temperature detected by the exhaust temperature sensor with the predetermined temperature or a predetermined temperature and outputting a result of the comparison; And a heating control section for controlling the heating based on the output value of the temperature comparing section and the abnormal temperature holding time.

In addition, the exhaust temperature-based heating control apparatus according to the present invention may further include a display unit for displaying an error code indicating an abnormality of the heating system under the control of the control unit.

The heating control unit compares the detected exhaust temperature with a predetermined set temperature for safety control, and when the exhaust temperature is lower than the set temperature, the exhaust control unit compares the exhaust temperature with a predetermined temperature set for judging whether or not normal combustion has occurred And when the detected exhaust temperature is higher than the set temperature, it compares the exhaust temperature with the predetermined temperature, and if the exhaust temperature is lower than the predetermined temperature, If the exhaust temperature is higher than the predetermined temperature, it is determined that the temperature is abnormal, and the heating control is performed in the calorie correction operation according to the abnormal temperature holding time or the safety control is performed for safety.

The safety control includes at least any one of an error code generation notifying a heating system abnormality, a combustion unit off, a pump, and a fan-off.

According to an aspect of the present invention, there is provided a method of controlling an exhaust temperature based on exhaust gas temperature, the method comprising: (a) detecting an exhaust temperature (TH1) when combustion starts; (b) comparing the detected exhaust temperature with a set temperature set for safety control; (c) comparing the exhaust temperature with a predetermined temperature for determining whether the exhaust gas is normal combusted if the exhaust temperature is lower than the predetermined temperature, and determining that the exhaust gas is normal combustion if the exhaust temperature is equal to or higher than the predetermined temperature; (d) comparing the exhaust temperature with the predetermined temperature when the exhaust temperature detected in the step (b) is greater than the predetermined temperature, and controlling the heating by the calorie correction operation if the exhaust temperature is lower than the predetermined temperature; (e) determining in step (d) that the exhaust temperature is higher than the predetermined temperature, and determining whether the abnormal temperature holding time is maintained for a predetermined time; (f) if the abnormal temperature holding time is within the predetermined time, the controller moves to the step (d) and controls heating through the calorie correction operation. When the abnormal temperature holding time is maintained for the predetermined time or more, The method of claim 1, further comprising the step of:

The set temperature in the step (b) is characterized in that an arbitrary temperature? Is added to the heating supply temperature.

The safety control in the step (f) controls at least one of an error code generation notifying a heating system abnormality, a combustion unit off, a pump, and a fan-off.

According to the present invention, the heating is automatically controlled according to the exhaust temperature. However, if the exhaust temperature becomes very high as compared with the heating device, the heating device can be automatically stopped to secure safety.

Further, according to the present invention, when the exhaust temperature is lower than the heating control temperature (predetermined temperature) due to the heating device or the like, optimum heating can be achieved through the calorie correction operation.

FIG. 1 is a structural view of an exhaust temperature-based heating control apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a diagram showing a connection structure of the embodiment of the control unit of FIG. 1 and its peripheral device,
3 is a flow chart illustrating a method of controlling the exhaust temperature based on the exhaust temperature according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an exhaust temperature-based heating control apparatus and method according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the domestic gas boiler to which the present invention is applied is very similar to a general domestic gas boiler. As shown in FIG. 1, the domestic gas boiler of the present invention is provided with an exhaust gas temperature sensing unit 6 for detecting an exhaust gas temperature in addition to a general domestic gas boiler at a predetermined position of the exhaust gas outlet, It automatically controls to prevent safety accidents that may occur in the event of a heating system failure.

As shown in FIG. 1, the gas-boiler 1 heats the water supplied from the water tank 2 through the heat exchanger 3, And supplies the generated heating water to the heating pipe 200 through the three-way valve 5 to perform heating. In addition, when hot water is used, the hot water passed through the three-way valve 5 is heat-exchanged through the hot water heat exchanger 4 and supplied to the hot water.

Further, the exhaust temperature-based heating control apparatus includes an exhaust temperature sensing unit 6 for sensing an exhaust temperature; And a controller 10 for controlling the heating based on the result of comparison between the exhaust temperature sensed by the exhaust temperature sensing unit 6 and the predetermined set temperature for determining whether the heating system is normal or not and the abnormal temperature holding time. It is preferable that the control unit 10 does not need to be additionally provided but a controller provided in an existing boiler is used and only the control program is used.

As shown in FIG. 2, the control unit 10 includes a set temperature storage unit 11 storing a preset temperature and a predetermined temperature for determining whether there is a heating abnormality. A temperature comparing unit (12) for comparing the exhaust temperature detected by the exhaust temperature detecting unit (6) with the set temperature or a predetermined temperature and outputting a result of the comparison; And a heating control section (13) for controlling the heating based on the output value of the temperature comparing section (12) and the abnormal temperature holding time.

Here, the set temperature is a temperature obtained by adding an arbitrary temperature? To the heating supply temperature.

In addition, the exhaust temperature-based heating control apparatus according to the present invention includes a display unit 7 for displaying an error code indicating the abnormality of the heating system under the control of the control unit 10.

The heating control unit 13 compares the detected exhaust temperature with a predetermined set temperature for safety control, and when the exhaust temperature is lower than the set temperature, the heating control unit 13 again determines the exhaust temperature and a predetermined temperature If the exhaust temperature is equal to or higher than the predetermined temperature, it is determined as normal combustion. If the detected exhaust temperature is higher than the set temperature, the exhaust temperature is compared with the predetermined temperature. If the exhaust temperature is lower than the predetermined temperature, the heating is controlled by the calorie correction operation. If the exhaust temperature is higher than the predetermined temperature, it is judged to be an abnormal temperature. In accordance with the abnormal temperature holding time, the heating control is performed in the calorie correcting operation or safety control is performed for safety.

Here, it is preferable that the safety control includes at least one of an error code generation notifying the abnormality of the heating system, a combustion unit off, a pump, and a fan-off.

The operation of the exhaust temperature-based heating control apparatus according to the preferred embodiment of the present invention will now be described in detail.

A gas boiler (1) of the present invention generates heating water by heating water supplied from a water tank (2) through a heat exchanger (3), and supplies the generated heating water to a heating pipe 200 for heating. In addition, when hot water is used, the hot water passed through the three-way valve 5 is heat-exchanged through the hot water heat exchanger 4 and supplied to the hot water.

The operation of the gas boiler operating in this manner is the same as that of the existing gas boiler.

When the combustion starts for heating in the gas boiler as described above, the exhaust temperature detecting unit 6 installed at a predetermined position of the exhaust port detects the exhaust temperature and transmits the detected exhaust temperature to the control unit 10. Here, the exhaust temperature sensing unit 6 preferably uses a temperature sensor TH1 such as a thermistor.

When the exhaust temperature is detected by the exhaust temperature sensing unit 6, the control unit 10 determines whether the heating system operates normally or whether there is a problem in combustion based on the detected exhaust temperature, The system is automatically controlled to achieve optimal heating while preventing safety accidents.

For example, the temperature comparator 12 of the controller 10 compares the exhaust temperature detected by the exhaust temperature detector 6 with a predetermined set temperature for safety control stored in the set temperature storage 11. Here, the set temperature is a temperature set by adding an arbitrary temperature (?) To the heating supply temperature as described above, and the failure state of the heating system is determined based on this temperature.

If it is determined that the exhaust temperature is lower than the set temperature, it is determined that the failure has not occurred in the heating system. Then, the exhaust temperature is compared with a predetermined temperature for determining whether or not normal combustion has occurred, If it is above the temperature, it is judged as normal combustion. Here, the predetermined temperature means a normal exhaust temperature at normal combustion. This is preferably determined through experimentation. If the exhaust temperature is lower than the predetermined temperature, the process returns to the step of detecting the exhaust temperature.

If the detected exhaust temperature is higher than the set temperature, the exhaust temperature is compared with the predetermined temperature. If the exhaust temperature is lower than the predetermined temperature, the heating is controlled by the calorie correction operation. In this case, normal combustion occurs, but since the amount of heat generated may be insufficient, the heating is optimally controlled through calorimetric correction.

If the exhaust temperature is higher than the predetermined temperature, it is determined that the abnormal temperature is the predetermined temperature. As a result, the heating is controlled optimally through the calorie correction primarily before the abnormal temperature is maintained for the predetermined time. On the contrary, when the abnormality temperature is maintained for the predetermined time or more, a failure occurs in the heating system. If this abnormality persists, a fire or other safety accident may be caused. Therefore, safety control is performed to prevent such safety accidents in advance.

Here, the safety control may include an operation of generating an error code indicating the abnormality of the heating system and displaying the result through the display unit 7, turning off the combustion unit, and turning off the pump and the fan. The above-described safety control may be performed using any one of a plurality of safety control processes mentioned above, or a combination thereof may be used.

In other words, according to the present invention, the exhaust temperature is measured. When the exhaust temperature exceeds the predetermined temperature and the state is maintained for a predetermined time or more, it is judged as a heating system failure and the safety device is automatically operated for safety. In addition, when the exhaust temperature is lower than the set temperature obtained by adding the heating supply temperature and the arbitrary temperature, the normal combustion is determined. Alternatively, when the exhaust temperature is higher than the set temperature, the heating system is controlled , And the optimal heating is realized.

FIG. 3 is a flowchart illustrating a method of controlling the exhaust temperature based on the exhaust temperature according to the present invention, wherein (a) the exhaust temperature TH1 is detected (S101 to S102) when combustion starts; (b) comparing the detected exhaust temperature with a set temperature (A) set for safety control (S103); (c) comparing the exhaust temperature with a predetermined temperature for judging whether the exhaust gas is normal combustion, if the exhaust temperature is lower than the predetermined temperature, and determining (S104 to S105) ; (d) comparing the exhaust temperature with the predetermined temperature when the exhaust temperature detected in the step (b) is greater than the predetermined temperature, and controlling the heating by the heat quantity correction operation if the exhaust temperature is lower than the predetermined temperature To S107); (d) determining whether the exhaust temperature is greater than the predetermined temperature and determining whether the abnormal temperature holding time is maintained for a predetermined time (S108); (f) if the abnormal temperature holding time is within the predetermined time, the controller moves to the step (d) and controls heating through the calorie correction operation. When the abnormal temperature holding time is maintained for the predetermined time or more, (S109). ≪ / RTI >

Wherein the set temperature of step (b) is a temperature obtained by adding an arbitrary temperature to the heating supply temperature, and the safety control of step (f) includes: generating an error code indicating a heating system abnormality; And a fan-off state.

The exhaust temperature-based heating control method according to the preferred embodiment of the present invention will be described in detail as follows.

First, when combustion is started for heating in step S101, the exhaust temperature detecting unit 6 provided at a predetermined position of the exhaust port detects the exhaust temperature TH1 in step S102, and transmits the detected exhaust temperature TH1 to the control unit 10. [ Here, the exhaust temperature sensing unit 6 preferably uses a temperature sensor such as a thermistor.

When the exhaust temperature is detected by the exhaust temperature sensing unit 6, the control unit 10 determines whether the heating system operates normally or whether there is a problem in combustion based on the detected exhaust temperature, The system is automatically controlled to achieve optimal heating while preventing safety accidents.

For example, the temperature comparator 12 of the control unit 10 compares the exhaust temperature TH1 detected by the exhaust temperature sensor 6 with the preset temperature for safety control stored in the set temperature storage unit 11 in step S103 Compare the temperatures. Here, the set temperature is a temperature set by adding an arbitrary temperature (?) To the heating supply temperature as described above, and the failure state of the heating system is determined based on this temperature.

If it is determined that the exhaust temperature is lower than the set temperature, it is determined that no trouble has occurred in the heating system. In step S104, the exhaust temperature is compared with a predetermined temperature for determining whether or not the exhaust gas is normal, If the temperature is equal to or higher than the predetermined temperature, the process proceeds to step S105 and determines that the combustion is normal. Here, the predetermined temperature means a normal exhaust temperature at normal combustion. This is preferably determined through experimentation. If the exhaust temperature is less than the predetermined temperature, the process returns to step S102 for detecting the exhaust temperature.

If the detected exhaust temperature TH1 is greater than the set temperature in step S103, the process proceeds to step S106 to compare the exhaust temperature TH1 with the predetermined temperature. If the exhaust temperature is smaller than the predetermined temperature, And controls the heating by the calorie correction operation. In this case, normal combustion occurs, but since the amount of heat generated may be insufficient, the heating is optimally controlled through calorimetric correction.

If the exhaust temperature TH1 is greater than the predetermined temperature, it is determined that the temperature is abnormal. In step S108, it is confirmed whether the abnormal temperature is maintained for a predetermined time or longer. As a result, before the abnormal temperature is maintained for the predetermined time, the process proceeds to step S107 to optimally control the heating through the calorimetric correction.

On the contrary, if the abnormality temperature is maintained for the predetermined time or longer, the process proceeds to step S109 to determine that there is a failure in the heating system. If the abnormality persists, a fire or other safety accident may occur. Therefore, safety control is performed to prevent such safety accidents in advance. Here, the safety control may include an operation of generating an error code indicating the abnormality of the heating system and displaying the result through the display unit 7, turning off the combustion unit, and turning off the pump and the fan. The above-described safety control may be performed using any one of a plurality of safety control processes mentioned above, or a combination thereof may be used.

In other words, according to the present invention, the exhaust temperature is measured. When the exhaust temperature exceeds the predetermined temperature and the state is maintained for a predetermined time or more, it is judged as a heating system failure and the safety device is automatically operated for safety. In addition, when the exhaust temperature is lower than the set temperature obtained by adding the heating supply temperature and the arbitrary temperature, the normal combustion is determined. Alternatively, when the exhaust temperature is higher than the set temperature, the heating system is controlled , And the optimal heating is realized.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to a technique for optimally controlling heating by using an exhaust temperature in a boiler.

6: exhaust temperature sensing unit
7:
10:
11: Set temperature storage unit
12:
13:

Claims (8)

delete delete delete delete delete A method of controlling heating based on exhaust temperature,
(a) detecting the exhaust temperature (TH1) when combustion starts;
(b) comparing the detected exhaust temperature with a set temperature set for safety control;
(c) comparing the exhaust temperature with a predetermined temperature for determining whether the exhaust gas is normal combusted if the exhaust temperature is lower than the predetermined temperature, and determining that the exhaust gas is normal combustion if the exhaust temperature is equal to or higher than the predetermined temperature;
(d) comparing the exhaust temperature with the predetermined temperature when the exhaust temperature detected in the step (b) is greater than the predetermined temperature, and controlling the heating by the calorie correction operation if the exhaust temperature is lower than the predetermined temperature;
(e) determining in step (d) that the exhaust temperature is higher than the predetermined temperature, and determining whether the abnormal temperature holding time is maintained for a predetermined time; And
(f) if the abnormal temperature holding time is within the predetermined time, the controller moves to the step (d) and controls heating through the calorie correction operation. When the abnormal temperature holding time is maintained for the predetermined time or more, The method of claim 1, further comprising:
The method according to claim 6, wherein the preset temperature of step (b) is a value obtained by adding an optional temperature (?) To the heating supply temperature.
The exhaust control method according to claim 6, wherein the safety control in step (f) controls at least one of an error code generation notifying a heating system abnormality, a combustion unit off, a pump, .



KR1020150174663A 2015-12-09 2015-12-09 Heating control method based exhaust temperature KR101797649B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220075674A (en) 2020-11-30 2022-06-08 린나이코리아 주식회사 Operating controlling method of boiler using exhaust temperature

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101562241B1 (en) * 2014-12-11 2015-10-26 린나이코리아 주식회사 An exhaust temperature sensor of the combustion device, Every detection method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101562241B1 (en) * 2014-12-11 2015-10-26 린나이코리아 주식회사 An exhaust temperature sensor of the combustion device, Every detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220075674A (en) 2020-11-30 2022-06-08 린나이코리아 주식회사 Operating controlling method of boiler using exhaust temperature

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