WO2015163620A1 - 가스 보일러의 배기 연도 폐쇄 감지 방법 - Google Patents
가스 보일러의 배기 연도 폐쇄 감지 방법 Download PDFInfo
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- WO2015163620A1 WO2015163620A1 PCT/KR2015/003681 KR2015003681W WO2015163620A1 WO 2015163620 A1 WO2015163620 A1 WO 2015163620A1 KR 2015003681 W KR2015003681 W KR 2015003681W WO 2015163620 A1 WO2015163620 A1 WO 2015163620A1
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- WIPO (PCT)
- Prior art keywords
- temperature
- heating water
- exhaust flue
- exhaust
- gas
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000008236 heating water Substances 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 43
- 238000002485 combustion reaction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 208000005374 Poisoning Diseases 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/215—Temperature of the water before heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/269—Time, e.g. hour or date
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
-
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/19—Measuring temperature outlet temperature water heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
Definitions
- the present invention relates to a method for detecting exhaust flue closure of a gas boiler, and more particularly, to a gas boiler for detecting exhaust flue closure of a gas boiler by using a fan fan speed and a difference between a heating water supply temperature and a heating water return temperature.
- a method for detecting exhaust flue closure is a method for detecting exhaust flue closure.
- a gas boiler burns liquefied petroleum gas (LPG), liquefied natural gas (LNG), or city gas internally, heats water using combustion heat generated during the combustion process, and then heats the circulating pump. It is a device that circulates through the heating pipe in the room to heat the room or supplies hot water to the bathroom or kitchen.
- LPG liquefied petroleum gas
- LNG liquefied natural gas
- city gas internally, heats water using combustion heat generated during the combustion process, and then heats the circulating pump. It is a device that circulates through the heating pipe in the room to heat the room or supplies hot water to the bathroom or kitchen.
- gas boilers are classified into condensing and non-condensing methods according to heat exchangers for heating heating water.
- the condensing gas boiler directly heats the heating water by using combustion heat, and further absorbs the latent heat of condensation of the exhaust gas, thereby maximizing thermal efficiency.
- the high temperature heating water heated by the combustion heat of the burner is circulated to the heating pipe by the operation of the circulation pump, and the low temperature heating water returned through the heating pipe is returned to the latent heat exchanger side.
- the low temperature heating water introduced into the latent heat exchange part is preheated by heat exchange with the exhaust gas passing through the sensible heat exchange part.
- the preheated heating water flows back into the sensible heat exchanger to be directly heated by the combustion heat of the burner, and the operation of circulating the heating pipe by the operation of the circulation pump is repeated.
- the hot water heated in the burner is circulated to the heating pipe as described above by the operation of the three-way valve installed at the outlet side of the heat exchanger or is sent to the hot water heat exchanger side to exchange heat with cold water supplied through the direct water pipe to supply hot water. Go through the process.
- the burner is operated after exhausting the unburned gas in the combustion chamber by rotating the exhaust fan at high speed to prevent explosion ignition due to unburned gas that may be in the combustion chamber during the initial ignition of the burner.
- it is necessary to determine whether the rotation speed of the exhaust fan rotating at a high speed is normal. This is because the number of rotations of the exhaust fan is a criterion for detecting the inflow or suckback of the exhaust wind through the exhaust flue or for determining whether the exhaust flue is closed.
- the rotation speed of the exhaust fan is detected and compared with the rotation speed of the preset exhaust fan.
- the exhaust fluctuation is detected in the process of detecting the operating condition of the boiler by detecting the rotation speed of the exhaust fan.
- the exhaust closed rotation speed is preset and stored in the microcomputer, and the rotation speed of the exhaust fan is detected during the initial operation of the boiler, and when the detected rotation speed is determined to be greater than the exhaust closed rotation speed, the boiler is driven. Stops and an exhaust closing error is displayed.
- the reason for detecting the exhaust closure is that when the exhaust flue is blocked, there is no flow rate of the gas discharged by the rotating exhaust fan, that is, the flow of air, and thus the exhaust fan has the same driving voltage. This is because the rotation speed is accelerated even when applied. Furthermore, when the exhaust flue is blocked or a strong reverse wind occurs, the mixing ratio of air and gas is not appropriate, which is caused by incomplete combustion, and a large amount of carbon monoxide and unburned gas is emitted in the exhaust gas, resulting in a risk of poisoning.
- Patent Document 1 Republic of Korea Patent No. 10-0512494 (Gas boiler exhaust closing detection method, 2005.08.29)
- the present invention has been made to solve the above problems, by using the fan rotation speed and the difference between the heating water supply temperature and the heating water return temperature during the operation of the boiler to detect the exhaust flue closure, through which the exhaust flue is a normal state It is an object of the present invention to provide a method for detecting exhaust flue closure of a gas boiler that can accurately detect whether or not it is in a closed state.
- the blower is driven according to the amount of air introduced through the venturi provided at the inlet of the blower, and the gas is introduced, and the air mixed gas is supplied to the burner.
- the ignition stroke is performed by the control unit, and during heating, the heating water supply temperature and the heating water return temperature are sensed by temperature sensors provided in the heating water supply pipe and the heating water return pipe, and the fan rotation speed of the blower and the heating water supply temperature are sensed.
- a method for detecting exhaust flue closure of a gas boiler that detects an exhaust flue closure using the heating water return temperature, wherein an ignition stroke is performed according to a user set temperature to perform temperature control to reach a user set temperature.
- Exhaust flue closure detection method of the gas boiler of the present invention is characterized in that the reference fan speed is the maximum fan speed ⁇ 0.8.
- Exhaust flue closure detection method of the gas boiler of the present invention is characterized in that the set time is 30 seconds.
- the exhaust flue closure detection method of the gas boiler of the present invention returns to step (b) if the determination result of step (b), step (c), or step (d) does not satisfy the conditions of each step. Re-execution.
- the exhaust flue closure detection method of the gas boiler of the present invention includes controlling not to perform the exhaust flue closure detection sequence for a preset holding time after the ignition stroke of step (a).
- Exhaust flue closure detection method of the gas boiler of the present invention includes the holding time is 30 seconds.
- the exhaust flue is prevented from being closed under normal temperature control, and the exhaust flue is continuously closed during the operation of the boiler by using a fan speed, a heating water supply temperature, and a heating water return temperature difference. There is an effect that can be detected.
- the exhaust flue closure can be detected using only the blower and temperature sensor normally provided in the gas boiler, so that the exhaust flue closure can be detected without additional configuration such as a separate exhaust pressure measurement mechanism, thereby reducing the cost. It has an effect.
- FIG. 1 is a control block diagram of an air proportional control gas boiler according to a preferred embodiment of the present invention.
- FIG. 2 is a view showing the air and gas supply structure of the air proportional control gas boiler shown in FIG.
- FIG 3 is a flow chart showing a method for closing the exhaust flue of the proportional control gas boiler according to a preferred embodiment of the present invention.
- the gas boiler includes a venturi 100, a blower 200, a burner 300, a blower driver 400, and a controller 500.
- the heating water supply temperature sensor 600 may include a heating water return temperature sensor 700, a memory 800, and a display 900.
- the air A is introduced from the outside through the venturi 100 provided at the inlet end of the blower 200, and the amount of air introduced through the venturi 100 is introduced.
- the fan B of the blower 200 is configured to be adjusted by the blowing mechanism driving unit 400 so that the gas B is introduced therein.
- the air mixed gas is supplied to the burner 300 via the blower 200 to perform the ignition stroke.
- the controller 500 generally controls a series of operations occurring when the boiler is operated.
- the control unit 500 performs the temperature control to reach the set temperature when the boiler is operated to perform the normal ignition stroke by the control unit 500.
- the control unit 500 controls to perform the exhaust flue closure detection sequence to determine whether the exhaust flue closure in the normal temperature control step.
- the exhaust flue closure detection sequence is determined by determining the elapsed holding time, determining the fan speed exceeding the fan fan speed, and calculating a temperature difference (difference between the heating water supply temperature and the heating water return temperature) to be less than the reference temperature value. It consists of four steps including a determination step and a set time elapsed determination step.
- the control unit 500 may control to sequentially determine each of the four steps, and may further include a timer to determine whether time elapses.
- the heating water supply temperature sensor 600 is provided at the heating water supply pipe (not shown), and detects the temperature of the heating water supply water, and the heating water return temperature sensor 700 is provided at the heating water return pipe (not shown). It detects the temperature of the water returned after heating.
- the memory 800 stores information required when performing the exhaust flue closure detection sequence of the control unit 500. For example, information on a holding time, a reference fan speed, a reference temperature value, and a setting time may be stored by an external input. Can be.
- an error message indicating the confirmation of the closure of the exhaust flue is displayed at the request of the control unit 500.
- FIG. 3 describes the exhaust flue closure detection method of the gas boiler of the present invention.
- the exhaust flue closing detection sequence is performed. At this time, it is determined whether a preset hold time, for example, 30 seconds, which has been set as a timer elapses (step S102).
- step S102 the exhaust flue is closed until the normal temperature detection state is reached, since the heating water supply temperature and the heating water return temperature are changed at the beginning of the ignition stroke.
- the holding time may be set to 30 seconds, but this value may be changed depending on the degree of temperature change or the type of boiler.
- the current fan speed at the time of driving the blower 200 is preset and multiplied by 0.8 to the maximum fan speed corresponding to the stored reference fan speed. It is determined whether it exceeds (step S104). This is because the reference fan speed is set to a value corresponding to 80% of the maximum fan speed of the blower 200.
- what percentage of the maximum fan speed is set to a value corresponding to the maximum fan speed may be changed according to the type, state, and precision of the control unit 500.
- step S106 the difference between the heating water supply temperature and the heating water return temperature is calculated, and it is determined whether the calculated value is less than the predetermined reference temperature value (step S106).
- the reason for using the difference between the heating water supply temperature value and the heating water return temperature value is that if the flow rate of air A passing through the venturi 100 decreases according to the exhaust flue year closure degree, the gas B input amount decreases. This leads to a decrease in the difference between the heating water supply temperature value and the heating water return temperature value, because it can detect the exhaust flue closure.
- the reference temperature value is to operate the boiler in the state that the exhaust flue closure is not detected to adjust the fan speed of the fan 200 to the maximum and gradually prevent the exhaust, the combustion performance of the boiler, carbon monoxide value, flame state, etc. Can be selected by selecting the value of the temperature difference at the appropriate closing time.
- the reference temperature value to be selected can be changed according to the boiler capacity.
- step S106 If it is determined in step S106 that the calculated value (difference between the heating water supply temperature and the heating water return temperature) is less than the reference temperature value, the timer determines whether 30 seconds of the preset set time has elapsed based on the determination time of the reference temperature value. Check and determine (step S108). The set time 30 seconds can be changed according to other circumstances.
- step S110 When it is determined that the setting time 30 seconds has elapsed by checking with the timer as described above, an error message indicating that the exhaust flue is closed is finally displayed (step S110).
- step S102 if the condition is not satisfied in the pending time elapsed determination step (step S102), it is determined that the normal detection state, and return to the previous step (step S100) to control the temperature so that the boiler is operated until the external user set temperature is reached. Continue.
- Venturi 200 blower
- control unit 600 heating water supply temperature sensor
- heating water return temperature sensor 800 memory
- the present invention can be applied to the condensing gas boiler to prevent the exhaust flue closure in the normal temperature control state, it is possible to continuously detect the flue flue closure during the operation of the boiler by using the fan speed, heating water supply temperature and heating water return temperature difference. .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Description
Claims (6)
- 보일러가 작동되면 송풍기 입구단에 마련된 벤튜리를 통해 유입되는 공기량에 따라 송풍기가 구동되어 가스가 유입되고, 상기 유입된 공기와 가스가 혼합된 공기혼합가스가 버너에 공급되어 제어부에 의해 착화 행정을 수행하며, 난방시 난방수공급관과 난방수환수관에 구비된 온도센서들로부터 난방수공급온도와 난방수환수온도를 감지하되, 상기 송풍기의 팬회전수, 상기 난방수공급온도 및 상기 난방수환수온도를 이용하여 배기 연도 폐쇄를 감지하는 가스 보일러의 배기 연도 폐쇄 감지 방법에 있어서,사용자 설정온도에 따라 착화 행정이 이루어져 사용자 설정온도에 도달하기 위한 온도 제어를 수행하는 (가) 단계;상기 구동되는 송풍기의 현재 팬회전수가 기준 팬회전수를 초과하는지 판단하는 (나) 단계;상기 현재 팬회전수가 상기 기준 팬회전수를 초과하는 것으로 판단되면, 난방수공급시 온도센서들로부터 감지되는 난방수공급온도값과 난방수환수온도값의 차이값을 검출하고, 상기 차이값이 기설정된 기준온도값 미만인지 판단하는 (다) 단계;상기 차이값이 상기 기준온도값 미만인 것으로 판단되면, 상기 (다) 단계의 판단 시점을 기준으로 경과하는 시간이 기설정된 설정시간을 경과하는지 판단하는 (라) 단계; 및상기 (다) 단계의 판단시점 기준 경과 시간이 상기 설정시간을 경과하는 것으로 판단되면, 배기 연도 폐쇄 확인 알림을 외부에 표시하는 (마) 단계를 포함하는 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
- 청구항 1에 있어서,상기 기준 팬회전수는 최대 팬회전수의 80%로 설정한 값인 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
- 청구항 1에 있어서,상기 설정시간은 30초인 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
- 청구항 1에 있어서,상기 (나) 단계에서 구동되는 송풍기의 현재 팬회전수가 기준 팬회전수를 초과하지 않은 경우, 상기 (다) 단계에서 난방수공급온도값과 난방수환수온도값의 차이값이 기설정된 기준온도값 미만인 경우, 또는 상기 (라) 단계에서 설정시간이 경과되지 않은 경우로 판단된다면, 각각 상기 (나) 단계로 돌아가서 순차적으로 재수행하는 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
- 청구항 1에 있어서,상기 (가) 단계의 착화행정 이후,기설정된 보류시간 동안 배기 연도 폐쇄 감지 시퀀스를 수행하지 않도록 제어하는 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
- 청구항 5에 있어서,상기 보류시간은 30초인 것을 특징으로 하는 가스 보일러의 배기 연도 폐쇄 감지 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2016563131A JP6236548B2 (ja) | 2014-04-22 | 2015-04-13 | ガスボイラの排気煙道閉鎖感知方法 |
RU2016144343A RU2649155C1 (ru) | 2014-04-22 | 2015-04-13 | Способ выявления непроходимости в вытяжном канале газового котла |
EP15782305.5A EP3136015A4 (en) | 2014-04-22 | 2015-04-13 | Method for detecting blockage in exhaust flue of gas boiler |
US15/305,600 US10488042B2 (en) | 2014-04-22 | 2015-04-13 | Method for detecting blockage in exhaust flue of gas boiler |
CN201580021446.5A CN106415150A (zh) | 2014-04-22 | 2015-04-13 | 一种检测燃气锅炉烟道阻塞的方法 |
Applications Claiming Priority (2)
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KR1020140048197A KR101601709B1 (ko) | 2014-04-22 | 2014-04-22 | 가스 보일러의 배기 연도 폐쇄 감지 방법 |
KR10-2014-0048197 | 2014-04-22 |
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WO2015163620A1 true WO2015163620A1 (ko) | 2015-10-29 |
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US (1) | US10488042B2 (ko) |
EP (1) | EP3136015A4 (ko) |
JP (1) | JP6236548B2 (ko) |
KR (1) | KR101601709B1 (ko) |
CN (1) | CN106415150A (ko) |
RU (1) | RU2649155C1 (ko) |
WO (1) | WO2015163620A1 (ko) |
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KR102260500B1 (ko) * | 2018-12-28 | 2021-06-03 | 주식회사 경동나비엔 | 보일러 및 보일러의 연소 제어방법 |
AU2020341522B2 (en) * | 2019-09-03 | 2023-12-14 | Ihi Corporation | Anomaly detection device and display device |
CN112709290A (zh) * | 2020-12-11 | 2021-04-27 | 华帝股份有限公司 | 一种套管式壁挂炉卫浴管路清洗控制方法及壁挂炉 |
CN114279090B (zh) * | 2021-12-29 | 2023-01-03 | 芜湖美的厨卫电器制造有限公司 | 燃气热水器及其控制方法、装置 |
KR20240073465A (ko) * | 2022-11-18 | 2024-05-27 | 주식회사 경동나비엔 | 보일러 시스템 및 그의 송풍기 제어 방법 |
KR20240079888A (ko) | 2022-11-29 | 2024-06-05 | 김미숙 | 가스보일러의 배기연도 막힘 감지방법 |
EP4394250A1 (en) * | 2022-12-27 | 2024-07-03 | Daikin Europe N.V. | Capacity verification system and method of operation thereof |
KR20240106796A (ko) * | 2022-12-29 | 2024-07-08 | 주식회사 경동나비엔 | 보일러의 배기 폐쇄 검출 장치 및 방법 |
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RU2649155C1 (ru) | 2018-03-30 |
EP3136015A1 (en) | 2017-03-01 |
KR20150122328A (ko) | 2015-11-02 |
JP6236548B2 (ja) | 2017-11-22 |
US20170038068A1 (en) | 2017-02-09 |
CN106415150A (zh) | 2017-02-15 |
EP3136015A4 (en) | 2017-12-13 |
JP2017515084A (ja) | 2017-06-08 |
KR101601709B1 (ko) | 2016-03-10 |
US10488042B2 (en) | 2019-11-26 |
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