KR20000028337A - Method for improving re-boiling speed of warm water and for counterbalancing deviation in temperature of warm water by characteristic of warm water delayed in gas boiler - Google Patents
Method for improving re-boiling speed of warm water and for counterbalancing deviation in temperature of warm water by characteristic of warm water delayed in gas boiler Download PDFInfo
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- KR20000028337A KR20000028337A KR1019980046530A KR19980046530A KR20000028337A KR 20000028337 A KR20000028337 A KR 20000028337A KR 1019980046530 A KR1019980046530 A KR 1019980046530A KR 19980046530 A KR19980046530 A KR 19980046530A KR 20000028337 A KR20000028337 A KR 20000028337A
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- 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
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
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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
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
- F24D19/1024—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves a multiple way valve
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- 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
- F24D2220/02—Fluid distribution means
- F24D2220/0207—Pumps
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- 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
- F24D2220/02—Fluid distribution means
- F24D2220/0235—Three-way-valves
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- 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)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
Description
본 발명은 온수지연특성을 이용한 온수 재출탕 속도 향상 및 온수온도 편차를 줄이는 방법에 관한 것으로, 특히 가스보일러의 온수를 사용하고자 하는 사용자가 5분이내에 온수사용을 반복할 경우 온수 재출탕시마다 온수 출탕 온도의 편차를 줄이고 온수 출탕 제어 온도까지 도달하는 시간을 최소화하도록 하는 가스보일러의 온수지연특성을 이용한 온수 재출탕 속도 향상 및 온수온도 편차를 줄이는 방법에 관한 것이다.The present invention relates to a method of improving hot water re- tapping speed and reducing hot water temperature deviation by using hot water delay characteristics. Especially, when a user who wants to use hot water of a gas boiler repeats the use of hot water within 5 minutes, hot water tapping is performed every time the hot water is re-applied. The present invention relates to a method of improving hot water re- tapping speed and reducing hot water temperature deviation by using a hot water delay characteristic of a gas boiler to reduce temperature variation and minimize time to reach a hot water tapping control temperature.
종래의 가스보일러에 사용되어지는 온수 온도 제어 시스템에서 온수사용을 중지할 경우에는 난방과 온수모드를 전환하여 주는 삼방변이 자동적으로 난방모드로 전환되어 온수 순환 배관내에 축열된 난방수가 순환펌프의 지속동작에 의해 난방배관으로 순환되어 난방수의 더운 열량이 소모된다. 이때 온수 재사용을 위하여 온수 수도꼭지를 열어시킴과 동시에 삼방변을 온수모드로 전환시켜야만 된다. 이와같은 동작특성으로 최초 온수사용후 중지시 축열된 난방수 온도가 고온에서 난방배관으로 순환되어 열교환이 이루어져 난방배관내의 난방수 온도가 저온으로 내려가며, 또다시 온수재사용을 할 경우에는 난방, 온수 전환장치인 삼방변이 온수모드로 전환하여 되는 시간이 필요로 하게 되고, 저온의 난방수가 온수 출탕 온도로 나올 수 있도록 하기 위한 난방수가 고온으로 변환하는 시간이 요구됨으로 인하여 온수 재출탕시 온수 적정온도 도달까지의 시간이 길어지는 문제점이 있다.When the hot water is stopped in the hot water temperature control system used in the conventional gas boiler, the three-way valve that switches the heating and hot water mode is automatically switched to the heating mode, so that the heated water in the hot water circulation pipe continuously operates the circulation pump. It is circulated to the heating pipe by the hot heat of the heating water is consumed. At this time, the hot water faucet must be opened for hot water reuse and the three sides must be switched to hot water mode. Due to this operating characteristic, the heat of the heated water is circulated from the high temperature to the heating pipe when the water is stopped after the initial use of the hot water, and the heat is exchanged to lower the temperature of the heating water in the heating pipe. The time required to convert the three-way valve, which is a switching device, to the hot water mode is required, and the time required for the heating water to be converted to a high temperature to allow the low temperature heating water to come out to the hot water tapping temperature is reached. There is a problem that takes a long time.
첨부도면 도 1은 가스보일러의 내부를 나타내는 개략구성도로써, 난방모드에서의 온수사용시를 설명하고 온수전용모드에서의 온수사용시는 후술하기로 한다.1 is a schematic configuration diagram showing the inside of a gas boiler, which describes the use of hot water in the heating mode and will be described later when using the hot water in the hot water exclusive mode.
가스온수보일러는 난방모드(겨울철)하에서 난방을 기본동작으로 작동한다. 이때 난방작동에 온수열교환기(5)에서 냉수가 열교환되어 온수로 되어 배출될 때 보일러를 빠져나오는 온수출탕배관(6)에 연결된 온수수도꼭지의 온수밸브(11)를 오픈시에 수도공급수가 보일러로 들어가는 직수공급배관부(7)에 부착된 유수감지기(10)에 의해 물흐름 신호가 발생하여 이 신호가 가스온수보일러의 주제어장치를 통해 온수로 전환하는 삼방변(4)을 난방모드에서 온수모드로 전환이 이루어진다.The hot water boiler operates by heating under the heating mode (winter season). At this time, when the hot water is exchanged with the hot water by the hot water heat exchanger 5 during the heating operation and the hot water is discharged into the hot water, the hot water valve 11 of the hot water faucet connected to the hot water hot water pipe 6 exiting the boiler is opened. Water flow signal is generated by the water flow sensor 10 attached to the direct water supply pipe part 7, which enters into the water, and the three-way valve 4 converting the signal into hot water through the main controller of the gas hot water boiler is heated in the heating mode. The mode is switched.
이때 폐쇄된 난방흐름 배관내의 난방수 순환이 a→b→c→d→e→f로 이루어지던 것이 a→b→c→g→h→f로 바꾸어지게 됨으로 인하여, 난방수 순환 배관 흐름구조가 가장 빠른 구조로 이루어지게 된다. 이러한 온수모드배관 흐름이 이루어진 상태에서 가스연소에 의해 고온으로 축열된 난방수가 상기 온수열교환기(5)를 거치게 되고, 이때 냉수가 온수열교환기에서 고온의 난방수와 간접적으로 열교환이 이루어져 상기 온수 출탕 배관(6)의 끝단부에 있는 주방 또는 욕조 온수밸브로 더운 온수가 출탕되게 된다.At this time, since the heating water circulation in the closed heating flow pipe was changed from a → b → c → d → e → f to a → b → c → g → h → f, the heating water circulation pipe flow structure The fastest structure is achieved. In the state in which the hot water mode pipe flow is made, the heated water stored at high temperature by gas combustion passes through the hot water heat exchanger 5, and in this case, the cold water is indirectly heat exchanged with the hot water in the hot water heat exchanger and thus the hot water tapping is performed. Hot water is tapping into the kitchen or tub hot water valve at the end of the pipe 6.
또한, 온수 전용 모드에서의 온수사용(여름철)하에서는 직수 공급배관부(7)에 부착된 유수감지기(10)가 물흐름을 감지하지 않는 한 가스온수보일러가 가스버너(9)에서 연속동작이 이루어지지 않는 특성으로 기본동작을 하게 된다.In addition, under the use of hot water in the hot water exclusive mode (summer season), the gas hot water boiler is continuously operated in the gas burner 9 unless the water flow sensor 10 attached to the water supply pipe 7 detects the water flow. It does not lose its basic operation.
이때, 온수출탕배관부(6)에 연결된 온수수도꼭지의 온수밸브(11)가 오픈될 경우에는 상기 유수감지기(10)가 물흐름을 감지하게 됨에 따라서 순환펌프(2)와 삼방변(4)이 온수모드로 동작하고 상기 가스버너(9)에 가스연료가 온수모드로 동작하고 상기 가스버너(9)에 가스연료가 공급되면서 가스연소하게 되어 열교환기(1)를 통해서 난방수가 고온으로 축열되고 고온의 난방수가 온수 열교환기(5)로 순환되면서 직수가 간접 열교환을 이루면서 온수출탕이 이루어지는 것이다.At this time, when the hot water valve 11 of the hot water faucet connected to the hot water hot water pipe part 6 is opened, the water flow sensor 10 detects the water flow, and thus the circulation pump 2 and the three-way valve 4. The hot water mode is operated and the gas fuel is operated in the hot water mode to the gas burner 9 and the gas fuel is supplied to the gas burner 9 so that the gas is combusted so that the heating water is stored at a high temperature through the heat exchanger 1. The hot water is circulated to the hot water heat exchanger 5 while the hot water is indirect heat exchange.
이는 사용자가 최초 온수를 중지시킨다음 온수를 재출탕했을시마다 온수 출탕온도 편차가 커지는 문제가 있고 온수출탕 제어목표온도까지의 도달시간이 길어지는 문제가 항상 내포되어 있다.This is a problem that the hot water tapping temperature deviation increases every time the user stops the hot water for the first time after re- tapping the hot water, and the problem that the time to reach the hot water tapping target temperature is long is always implicated.
본 발명은 상기한 바와같은 제반문제점을 근본적으로 치유하기 위해 연구개발된 것으로 다음과 같은 목적을 갖는다.The present invention has been researched and developed to fundamentally cure the above-mentioned problems, and has the following objectives.
본 발명은 가스보일러의 온수를 사용하고자 하는 사용자가 5분이내에 온수사용을 반복할 경우 온수재출탕시 마다 온수출탕온도의 편차를 줄이고 온수 출탕 제어온도까지 도달하는 시간을 최소화하도록 하는 가스보일러의 온수지연특성을 이용한 온수 재출탕 속도 향상 및 온수 온도편차를 줄이는 방법을 제공하는데 그 목적이 있다.According to the present invention, when the user who wants to use the hot water of the gas boiler repeats the use of the hot water within 5 minutes, the gas boiler reduces the variation of the hot water tapping temperature and minimizes the time to reach the hot tapping temperature when the hot water is re-applied. The purpose of the present invention is to provide a method of improving hot water re- tapping speed and reducing hot water temperature deviation using hot water delay characteristics.
이러한 본 발명의 목적은 가스보일러를 사용하는 사용자가 온수를 사용하는지를 검지하는 단계와, 상기 온수가 검지되면 삼방변이 온수로 전환하는 단계와, 상기 삼방변이 온수로 전환하여 온수가 출탕되어지는 단계와, 온수가 사용자가 원하는 양만큼 출탕되면 온수사용이 중지되는 단계와,The object of the present invention is to detect whether a user using a gas boiler using hot water, and if the hot water is detected, the three-sided to switch to hot water, the three-sided to hot water is switched to the hot water and When the hot water is tapped as much as the user wants to stop using the hot water,
상기 온수사용이 중지되면 상기 삼방변 온수모드가 5분동안 유지시키는 단계와, 상기 삼방변 온수모드가 5분동안 유지되는 동안 순환펌프가 5초간 순환후 정지하는 단계와, 상기 순환펌프가 중지되면 가스연소가 중지되는 단계와, 상기 가스연소가 중지된후 5분이내에 사용자가 온수를 재사용시키는 단계와, 상기 온수를 재사용되면 순환펌프가 즉시 동작시키는 단계와, 상기 순환펌프의 동작이 이루어지는 동안 배기팬이 5초간 프리퍼지(Pre-Purge)하는 단계와, 상기 동작에 의해 가스가 재점화되어 연소되는 단계와, 상기 가스가 점화되어 연소되면 최초 온수온도의 편차가 없는 온수를 재출탕하는 단계, 및 상기 5분이내에 온수가 재사용되지 않으면 삼방변의 난방모드로 전환되는 단계로 이루어져 달성하게 된다.Maintaining the three-way hot water mode for 5 minutes when the hot water is stopped; circulating the pump for 5 seconds while stopping the three-way hot water mode for 5 minutes; Stopping the gas combustion, reusing the hot water within 5 minutes after the gas combustion is stopped, immediately operating the circulating pump when the hot water is reused, and exhausting the gas during the operation of the circulating pump. Pre-Purge the fan for 5 seconds, re-ignite and burn the gas by the operation, and reheat the hot water without deviation of the initial hot water temperature when the gas is ignited and burned, And if the hot water is not reused within the five minutes is achieved by the step of switching to the heating mode of the three sides.
도 1은 가스보일러의 내부를 나타내는 개략구성도,1 is a schematic configuration diagram showing an interior of a gas boiler;
도 2는 본 발명의 방법을 설명하기 위한 작동관계 흐름도,2 is an operation relationship flowchart for explaining the method of the present invention;
도 3은 본 발명의 특성을 나타내는 그래프.3 is a graph showing the characteristics of the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1 : 주열교환기 2 : 순환펌프1: main heat exchanger 2: circulation pump
3 : 개방형물탱크 4 :삼방변3: open water tank 4: three-way
5 : 온수 열교환기 6 : 온수 출탕 배관5: hot water heat exchanger 6: hot water tapping pipe
7 : 직수공급 배관 8: 난방배관7: Direct water supply piping 8: Heating piping
9 : 가스버너 10 : 유수감지기9: gas burner 10: water flow detector
11 : 온수밸브 12 : 배기팬모터11: hot water valve 12: exhaust fan motor
다음은 상기한 본 발명의 목적을 달성하기 위한 가스보일러의 온수지연특성을 이용한 온수 재출탕 속도 향상 및 온수온도 편차를 줄이는 방법을 살펴보면 다음과 같다.The following is a method for improving hot water re- tapping speed and reducing hot water temperature deviation using hot water delay characteristics of a gas boiler for achieving the above object of the present invention.
가스보일러를 사용하는 사용자가 온수를 사용하는지를 검지하는 단계와, 상기 온수가 검지되면 삼방변이 온수로 전환하는 단계와, 상기 삼방변이 온수로 전환하여 온수가 출탕되어지는 단계와, 온수가 사용자가 원하는 양만큼 출탕되면 온수사용이 중지되는 단계와, 상기 온수사용이 중지되면 상기 삼방변 온수모드가 5분동안 유지시키는 단계와, 상기 삼방변 온수모드가 5분동안 유지되는 동안 순환펌프가 5초간 순환후 정지하는 단계와, 상기 순환펌프가 중지되면 가스연소가 중지되는 단계와, 상기 가스연소가 중지된 후 5분이내에 사용자가 온수를 재사용시키는 단계와, 상기 온수를 재사용되면 순환펌프가 즉시 동작시키는 단계와, 상기 순환펌프의 동작이 이루어지는 동안 배기팬이 5초간 프리퍼지(Pre-Purge)하는 단계와, 상기 동작에 의해 가스가 재점화되어 연소되는 단계와, 상기 가스가 점화되어 연소되면 최초 온수온도의 편차가 없는 온수를 재출탕하는 단계, 및 상기 5분이내에 온수가 재사용되지 않으면 삼방변 난방모드로 전환되는 단계로 이루어진다.Detecting whether the user using the gas boiler uses hot water, converting the triangular water into hot water when the hot water is detected, converting the triangular water into hot water and tapping the hot water, and the hot water is desired by the user. When the hot water is stopped, the step of stopping the use of hot water, and when the use of the hot water is stopped, maintaining the three-way hot water mode for 5 minutes, and circulating the pump for 5 seconds while the three-way hot water mode is maintained for 5 minutes. Stopping the gas, stopping the gas combustion when the circulation pump is stopped, reusing the hot water within 5 minutes after the gas combustion is stopped, and immediately operating the circulation pump when the hot water is reused. And pre-purging the exhaust fan for 5 seconds during the operation of the circulation pump. If the method is to be ignited combustion, if the combustion gas is ignited it is the first step of the hot water bath deviation jaechul the warm water of the temperature, and hot water is not reused in the 5 min three-way side a step which is converted to the heating mode.
이러한 본 발명의 방법을 실시하기 위해 첨부도면 도 1 내지 도 3을 참조하여 작용관계를 살펴보기로 한다.In order to implement the method of the present invention with reference to the accompanying drawings 1 to 3 will be described the working relationship.
가스보일러를 난방사용 도중 최초 온수사용시(S1)에는 직수공급배관부(7)에 부착된 유수감지기(10)에 물흐름이 감지되어 삼방변(4)이 온수모드로 전환(S2)되어 고온의 난방수에 의해 온수 열교환기(5)에서 직수가 간접 열교환되어 온수출탕(S3)을 이룰 수 있다. 이때 주방 또는 욕실에서 온수 사용도중 잠시 중단후(S4) 5분이내에 재사용이 필요로 할 경우가 발생할 수 있다. 온수사용을 잠시 중단시 종래에는 유수감지기(10)가 물흐름 감지를 못하여 삼방변(4)을 즉시 온수모드에서 난방모드로 전환(S13,S14)하고 순환펌프(2)를 계속으로 동작시키기 위해서 고온의 난방수가 난방배관으로 순환되어 열교환이 이루어져 저온의 난방수로 변화하게 된다. 이때 온수 수도꼭지의 온수밸브(11)를 잠금으로 하여 유수감지기(10)가 물흐름을 감지못할 경우에는 가스버너(9)에 가스공급을 즉시 중단하고 상기 삼방변(4)은 즉시 난방모드로 전환하지 않고 5분간 계속 온수모드로 지연유지하며(S5), 순환펌프(2)를 약 5초간 지연(S6)동작후 순환을 정지함(S7)으로 하여 고온수난방수가 잠열비등현상을 방지할 수 있다. 이때 삼방변(4) 및 순환펌프(2)가 정지상태에 있기에 고온난방수가 온수흐름배관내에서 큰 온도편차없이 고온상태를 계속 유지된다.When the hot water is first used during the heating of the gas boiler (S1), the water flow is detected by the oil / water detector 10 attached to the direct water supply piping unit 7 so that the three-sided valve 4 is switched to the hot water mode (S2) to obtain a high temperature. Direct water may be indirectly heat-exchanged in the hot water heat exchanger 5 by the heating water to form the hot water spout S3. At this time, after using the hot water in the kitchen or bathroom for a while (S4) after 5 minutes may need to be reused. When the use of hot water is temporarily suspended, the water flow sensor 10 does not detect the water flow so that the three-way valve 4 is immediately switched from the hot water mode to the heating mode (S13, S14) and the circulation pump 2 is continuously operated. The high temperature heating water is circulated through the heating pipe to exchange heat to change to the low temperature heating water. At this time, if the water flow sensor 10 does not detect the water flow by locking the hot water valve 11 of the hot water faucet, the gas supply to the gas burner 9 is immediately stopped and the three-way valve 4 immediately switches to the heating mode. It keeps the delay in the hot water mode for 5 minutes without stopping (S5) and stops the circulation after operating the circulation pump (2) for about 5 seconds (S6) to prevent the latent heat boiling phenomenon. have. At this time, since the three-way valve 4 and the circulation pump 2 are in a stopped state, the high-temperature heating water is maintained at a high temperature without large temperature deviation in the hot water flow pipe.
상기와 같은 특성으로 5분이내에 온수를 재사용시에는 유지감지기가 물흐름을 감지하는 순간(S8) 가스점화를 위한 초기점화 과정인 순화펌프(2)가 즉시 동작(S9)하여 배기팬모터(12)가 약 5초간 동작후(S10) 가스버너(9)에 가스가 공급되고 점화되어(S11) 고온의 난방수가 저온으로 되기전에 바로 난방수를 가열하여 온수를 출탕(S12)가 되고 상기 스텝8에서 온수 재사용이 5분이내에 이루어지지 않으면 상기 삼방변(4)이 난방모드로 전환(S13)되어 난방모드를 동작(S14)하게 되어진다.When the hot water is reused within 5 minutes due to the above characteristics, the purifying pump 2, which is an initial ignition process for gas ignition, immediately operates (S9) when the maintenance sensor detects the water flow (S8) and the exhaust fan motor 12 After operating for about 5 seconds (S10), gas is supplied to the gas burner (9) and ignited (S11) immediately before the high temperature heating water becomes a low temperature. If the hot water reuse is not made within 5 minutes, the three-sided (4) is switched to the heating mode (S13) is to operate the heating mode (S14).
도 3의 온수 재출탕 속도 및 온수온도 편차 특성그래프에서 나타낸 바와같이 온수지연특성을 이용할 경우는 난방수온도에 따라 다소 차이는 있지만 온수 재출탕 속도가 약 45%정도 향상되면 온수온도 편차 또한 약 25%정도 편차를 줄일 수 있음음을 보여준다.When using the hot water delay characteristics as shown in the graph of the hot water re-flow rate and hot water temperature deviation characteristics of Figure 3 is somewhat different depending on the heating water temperature, the hot water temperature deviation is also about 25% when the hot water re-water rate is improved by about 45% It shows that the deviation can be reduced by about%.
미설명부호 3은 물의 온도변화에 따른 부피팽창과 배관을 일정압력으로 유지시키기 위한 개방형 물탱크를 나타낸 것이고 13은 가스버너(9)로 들어오는 가스량을 조절하는 전자식 가스밸브를 나타낸 것이다.Reference numeral 3 denotes an open water tank for maintaining the volume expansion and the pipe at a constant pressure according to the temperature change of the water, and 13 shows an electronic gas valve controlling the amount of gas entering the gas burner 9.
이상에서 살펴본 바와같이 본 발명은 가스보일러를 사용하는 사용자가 5분이내에 온수를 재작동할시 온수 재출탕 속도가 45%정도 향상되어지고 온수온도 편차 또한 25%정도 편차를 줄일 수 있는 효과와 온수온도 편차가 큰 변화가 없는 상태에서 온수 온도 목표값까지 빠른시간내 도달하여 줌으로써 물낭비를 없애고 가스연료비 또한 절약되어지는 등의 여러 효과를 동시에 거둘 수 있는 매우 유용한 발명임이 명백하다.As described above, in the present invention, when the user using the gas boiler restarts the hot water within 5 minutes, the hot water re-watering rate is improved by 45% and the hot water temperature deviation is also reduced by 25%. It is obvious that this invention is a very useful invention that can achieve various effects such as eliminating water waste and saving gas fuel cost by reaching the target value of hot water in a short time without a large change in temperature variation.
Claims (3)
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| KR1019980046530A KR100285883B1 (en) | 1998-10-31 | 1998-10-31 | How to Improve Hot Water Re-Latting Speed and Reduce Hot Water Temperature Variation Using Hot Water Delay Characteristics of Gas Boiler |
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| KR101949909B1 (en) * | 2017-10-31 | 2019-02-20 | 린나이코리아 주식회사 | Device for controlling hot water temperature using residual heat of boiler and method thereof |
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