KR20040074302A - Hot-water supplying apparatus for economization of water - Google Patents

Hot-water supplying apparatus for economization of water Download PDF

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Publication number
KR20040074302A
KR20040074302A KR1020030009841A KR20030009841A KR20040074302A KR 20040074302 A KR20040074302 A KR 20040074302A KR 1020030009841 A KR1020030009841 A KR 1020030009841A KR 20030009841 A KR20030009841 A KR 20030009841A KR 20040074302 A KR20040074302 A KR 20040074302A
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South Korea
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hot water
water
cold
cold water
hot
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KR1020030009841A
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Korean (ko)
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KR100506977B1 (en
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장사윤
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주식회사 한 에너지 시스템
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Priority to KR10-2003-0009841A priority Critical patent/KR100506977B1/en
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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
    • F24D19/1051—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
    • 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
    • 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)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

PURPOSE: A water-saving hot water supply device is provided to remove inconvenience of continuously wasting water or controlling the temperature of water till the temperature of the hot water reaches the temperature desired. CONSTITUTION: In a water-saving hot water supply device, hot water heated from a boiler(5) is supplied to a hot water-mixing unit(10), through a hot water pipe(6), the hot water is mixed with cold water of a cold water pipe(7), and then the mixed water is discharged through a hot water discharge unit(11). At an early stage of hot water supply, the cold water of the hot water pipe is temporarily stored in a cold water storage unit(15) and then if hot water heated from the boiler is supplied through the hot water pipe, the hot water is mixed with the cold water of the cold water storage unit in the hot water-mixing unit and the hot water of predetermined temperature is discharged.

Description

절수형 온수공급장치{HOT-WATER SUPPLYING APPARATUS FOR ECONOMIZATION OF WATER}Water-saving hot water supply device {HOT-WATER SUPPLYING APPARATUS FOR ECONOMIZATION OF WATER}

본 발명은 절수형 온수공급장치에 관한 것으로, 더욱 상세하게는 온수사용시 사용자가 설정온도의 온수를 수도꼭지 또는 샤워꼭지를 통해 바로 사용할 수 있도록 구성되는 절수형 온수공급장치에 관한 것이다.The present invention relates to a water-saving hot water supply device, and more particularly, to a water-saving hot water supply device configured to enable a user to directly use hot water at a set temperature through a faucet or shower head.

일반적으로, 온수공급장치는 사용자가 온수온도를 설정한 후 수도꼭지 또는 샤워꼭지를 개방하게 되면 온수관의 온수와 냉수관의 냉수를 혼합하여 설정온도의 온수를 공급하도록 구성되어 있다.In general, the hot water supply device is configured to supply hot water of the set temperature by mixing the hot water of the hot water pipe and the cold water of the cold water pipe when the user opens the faucet or shower head after setting the hot water temperature.

그러나, 이러한 온수공급장치는 수도꼭지 또는 샤워꼭지를 개방하게 되면 온수관내에 차 있던 냉수가 먼저 공급되고, 보일러에서 가열된 온수가 온수관을 통해 공급되기까지 상당시간이 경과되어야 하기 때문에 수도꼭지 또는 샤워꼭지를 개방한 후, 상당량의 냉수를 배출한 다음 온수를 사용하게 된다.However, such a hot water supply device is a faucet or shower faucet because when the tap or shower head is opened, the cold water filled in the hot water pipe is supplied first, and a considerable time must elapse before the hot water heated in the boiler is supplied through the hot water pipe. After opening, a significant amount of cold water is discharged and hot water is used.

결국, 사용자는 수도꼭지 또는 샤워꼭지를 개방한 후 온수가 바로 공급되지 않기 때문에 보일러에서 가열된 온수가 공급될 때까지 개방된 수도꼭지 또는 샤워꼭지를 통해 물을 계속적으로 소비하게 되고, 온수가 공급된 후에도 사용에 알맞는 온도로 맞추기 위하여 물의 온도를 반복적으로 조절하여야 하는 등의 문제가 있다.As a result, since the hot water is not supplied immediately after opening the faucet or shower head, the user continuously consumes water through the open faucet or shower head until the heated water is supplied from the boiler, and even after the hot water is supplied. There is a problem such as the temperature of the water must be repeatedly adjusted to adjust to a temperature suitable for use.

본 발명은 위와 같은 종래기술의 문제를 개선하기 위하여 안출된 것으로, 온수공급초기에 온수관내에 차 있던 냉수를 수압을 이용하여 냉수저장수단에 일시 저장한 후, 보일러에서 가열된 온수가 온수관을 통해 공급되면 냉수저장수단내의 냉수와 혼합하여 설정온도의 혼합온수를 배출 사용하도록 구성함으로써 온수가 원하는 온도가 될 때까지 계속적으로 물을 낭비하거나 물의 온도를 조절하는 등의 번거로움을 없앨 수 있는 절수형 온수공급장치를 제공함에 그 목적이 있다.The present invention has been made in order to improve the problems of the prior art as described above, after temporarily storing the cold water filled in the hot water pipe in the initial hot water supply in the cold water storage means using the water pressure, the hot water heated in the boiler is a hot water pipe If supplied through the cold water storage means by mixing with the cold water to discharge the hot water at the set temperature by using the configuration to eliminate the hassle such as waste water or adjust the water temperature until the hot water reaches the desired temperature The purpose is to provide a male hot water supply device.

도1은 본 발명의 일 실시예를 나타내는 구성도이다.1 is a block diagram showing an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1: 제어기 2: 온/오프수단 3: 온수온도설정수단 5: 보일러 6: 급수관 7: 냉수관 10: 온수혼합수단 11: 온수배출수단 15: 냉수저장수단 21: 제1개폐변 22: 제2개폐변 23: 제3개폐변 24: 온수온도측정센서Reference Signs List 1: controller 2: on / off means 3: hot water temperature setting means 5: boiler 6: water supply pipe 7: cold water pipe 10: hot water mixing means 11: hot water discharge means 15: cold water storage means 21: first opening and closing 22: second Open / close side 23: third open / close side 24: hot water temperature sensor

상기한 목적을 달성하기 위하여 본 발명은 보일러에서 데워진 온수를 온수관을 거쳐 온수혼합수단으로 공급하여 냉수관의 냉수와 혼합한 후, 온수배출수단을 통해 배출하도록 구성되는 온수공급장치에 있어서, 온수공급초기에 상기 온수관의 냉수를 냉수저장수단에 일시 저장한 후, 보일러에서 데워진 온수가 온수관을 통해 공급되면 온수혼합수단에서 냉수저장수단의 냉수와 혼합하여 설정온도의 온수를 배출하도록 구성되는 것을 특징으로 하는 절수형 온수공급장치를 제공하게 된다.In order to achieve the above object, the present invention is a hot water supply device configured to discharge the hot water heated in the boiler to the hot water mixing means via a hot water pipe and mixed with cold water of the cold water pipe, and discharged through the hot water discharge means, When the cold water of the hot water pipe is temporarily stored in the cold water storage means at the beginning of supply, and the hot water heated in the boiler is supplied through the hot water pipe, the hot water mixing means is mixed with the cold water of the cold water storage means to discharge hot water at a set temperature. It is to provide a water-saving hot water supply device characterized in that.

그리고, 본 발명은 제1 내지 제3개폐변을 각각 상기 온수배출수단, 온수관, 냉수관을 단속하도록 설치하면서 상기 제3개폐변과 온수혼합수단 사이에 냉수저장수단을 구비하되, 제어기에서 온수온도설정수단과 온/오프수단의 신호에 따라 제2제어변의 개방과 제1,3개폐변의 폐쇄를 제어면 온수관의 냉수가 냉수저장수단에 일시 저장되고 보일러에서 데워진 온수가 온수관을 통해 온수혼합수단에 공급되면 제어기에서 온수혼합수단의 온수온도를 측정하는 온수온도측정센서의 검출신호에 따라 제1,3개폐변의 개방을 제어하여 온수배출수단을 통해 온수를 배출 사용하도록 구성되어 있다.In addition, the present invention is provided with a cold water storage means between the third opening and closing the hot water mixing means while installing the first to the third opening and closing the hot water discharge means, the hot water pipe, the cold water pipe, respectively, the hot water in the controller According to the signal of the temperature setting means and the on / off means, the opening of the second control valve and the closing of the first and third opening valves are controlled, and the cold water of the hot water pipe is temporarily stored in the cold water storage means, and the hot water heated in the boiler is heated by the hot water pipe. When supplied to the mixing means is configured to control the opening of the first and third open and close valves according to the detection signal of the hot water temperature measuring sensor for measuring the hot water temperature of the hot water mixing means to discharge the hot water through the hot water discharge means.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 일 실시예를 나타내는 구성도이다.1 is a block diagram showing an embodiment of the present invention.

본 발명은 온수공급초기에 온수관(6)내에 차 있던 냉수를 수압을 이용하여 냉수저장수단(15)에 일시 저장한 후, 보일러(5)에서 가열된 온수가 온수관을 통해 공급되면 냉수저장수단(15)내의 냉수와 혼합하여 설정온도의 혼합온수를 배출하도록 구성된다.The present invention temporarily stores the cold water filled in the hot water pipe (6) at the beginning of hot water supply to the cold water storage means (15) using water pressure, and then stores the cold water when the hot water heated in the boiler (5) is supplied through the hot water pipe. And mixed with cold water in the means 15 to discharge the mixed hot water at the set temperature.

본 발명의 일 실시예에 따르면, 도1에 예시한 바와 같이 사용자가 온수온도설정수단(3)을 통해 조정한 후, 온/오프수단(2)을 온(on)상태로 작동시키게 되면 제어기(1)에서 온수온도설정수단(3)과 온/오프수단(2)의 신호를 전송받아 제1개폐변(21)과 제2개폐변(22) 그리고 제3개폐변(23)을 제어하게 된다.According to an embodiment of the present invention, after the user adjusts through the hot water temperature setting means 3 as illustrated in FIG. 1, when the on / off means 2 is operated in an on state, the controller ( In 1) receiving the signals of the hot water temperature setting means 3 and the on / off means (2) to control the first opening and closing valve 21, the second opening and closing valve 22 and the third opening and closing valve (23). .

이때, 수도꼭지 또는 샤워꼭지와 같은 온수배출수단(11)과 온수혼합수단(10) 사이에 설치되는 제1개폐변(21)은 온수배출수단(11)을 통한 혼합온수의 배출을 단속하도록 설치되어 잇다.At this time, the first opening and closing valve 21 is installed between the hot water discharging means 11 and the hot water mixing means 10, such as a faucet or shower faucet is installed to control the discharge of the mixed hot water through the hot water discharging means (11). connect.

또한, 제2개폐변(22)은 온수관(6)상에 설치되면서 온수혼합수단(10)으로 공급되는 온수를 단속하도록 구비되어 있고, 제3개폐변(23)은 냉수관(23)상에 설치되면서 냉수관에서 냉수저장수단(15)으로 공급되는 냉수를 단속하도록 구비되어 잇다.In addition, the second opening and closing valve 22 is provided on the hot water pipe (6) is provided to control the hot water supplied to the hot water mixing means 10, the third opening and closing valve 23 is on the cold water pipe (23) While installed in the cold water pipe is provided to interrupt the cold water supplied to the cold water storage means (15).

그리고, 제3개폐변(23)과 온수혼합수단(10) 사이에 설치되는 냉수저장수단(15)은 신축재질의 다이어프램(Diaphragm) 등으로 구성되어 작동초기에 온수혼합수단으로부터 역류되는 온수관(6)의 냉수를 압축상태로 저장하게 된다.In addition, the cold water storage means 15 installed between the third open and close sides 23 and the hot water mixing means 10 is composed of a diaphragm (Diaphragm) made of stretchable material, etc. Cold water of 6) is stored in a compressed state.

여기서, 온수혼합수단(10)내의 혼합온수는 그 온도가 온수온도측정센서(24)에 의해 실시간으로 검출되어 제어기(1)로 전송되고, 그 온도가 제어기(1)에 입력되어 있는 설정온도에 도달하면 제어기에서는 제1개폐변(21)과 제3개폐변(23)을 연속적으로 개방하게 된다.Here, the mixed hot water in the hot water mixing means 10 is the temperature is detected in real time by the hot water temperature measuring sensor 24 and transmitted to the controller 1, the temperature is set to the set temperature input to the controller (1) When reaching, the controller opens the first open and close sides 21 and 23 continuously.

이때, 개방된 제1개폐변(21)을 통해 온수혼합수단(10)내의 혼합온수가 공급되면서 수도꼭지 또는 샤워꼭지와 같은 온수배출수단(11)으로 배출되어 사용자의 사용이 가능하게 된다.At this time, the mixed hot water in the hot water mixing means 10 is supplied to the hot water discharging means 11 such as a faucet or a shower head through the open first opening / closing side 21 to be used by the user.

한편, 이상과 같이 구성되는 본 발명을 그 작용을 통해 더욱 상세히 설명하기로 한다.On the other hand, the present invention configured as described above will be described in more detail through the action.

온수온도설정수단(3)을 통해 온수의 설정온도를 설정한 후, 온/오프수단(2)을 작동시키게 되면 제어기(1)에서 제2개폐변(22)을 개방하면서 제1개폐변(21)과 제3개폐변(23)을 폐쇄하도록 제어하게 된다.After setting the set temperature of the hot water through the hot water temperature setting means (3), when the on / off means (2) is operated, the first opening and closing valve 21 while opening the second opening and closing valve 22 in the controller (1) ) And the third opening and closing edge 23 to be closed.

이때, 제2개폐변(22)이 개방되면서 온수관(6)내에 충전되어 있던 냉수가 카트리지와 같은 온수혼합수단(10)을 채우게 되고, 계속해서 보일러(5)에서 데워진 온수가 온수관을 통해 공급되면서 온수혼합수단을 채우던 있던 냉수가 냉수저장수단(15)을 채우게 된다.At this time, as the second opening and closing valve 22 is opened, the cold water filled in the hot water pipe 6 fills the hot water mixing means 10 such as a cartridge, and the hot water heated in the boiler 5 continues through the hot water pipe. Cold water, which was supplied while filling the hot water mixing means, fills the cold water storage means 15.

여기서, 보일러(5)에서 가열된 온수가 온수관(6)을 통해 온수혼합수단(10)내 충전되면 온수온도측정센서(24)에서 온수의 온도를 측정하여 제어기(1)에 전송하게 된다.Here, when the hot water heated in the boiler 5 is charged in the hot water mixing means 10 through the hot water pipe 6, the hot water temperature measuring sensor 24 measures the temperature of the hot water and transmits it to the controller 1.

그리고, 온수온도측정센서(24)에서 측정되는 온수의 온도가 온수온도설정수단기(3)을 통해 사용자에 의해 설정된 설정온도에 도달하게 되면 제어기(1)에서 제1개폐변(21)과 제3개폐변(23)을 차례로 개방하게 된다.When the temperature of the hot water measured by the hot water temperature measuring sensor 24 reaches the set temperature set by the user through the hot water temperature setting means 3, the controller 1 opens the first opening and closing valve 21 and the first opening and closing valve 21. The three open sides 23 are opened in sequence.

이때, 온수혼합수단(10)내의 온수는 개방된 제1개페변(21)을 통해 수도꼭지 또는 샤워꼭지와 같은 온수배출수단(11)으로 공급되면서 사용자의 사용이 가능하도록 배출된다.At this time, the hot water in the hot water mixing means 10 is supplied to the hot water discharging means 11, such as a faucet or shower faucet through the open first open toilet 21 is discharged so that the user can use.

또한, 냉수저장수단(15)내에 충전되어 있는 냉수는 개방된 제3개폐변(23)을 통해 공급되는 냉수관(7)의 냉수와 함께 온수혼합수단(10)내로 공급되면서 온수관(6)을 통해 공급되는 온수와 혼합되어 마찬가지로 개방된 제1개폐변(21)을 거쳐 수도꼭지 또는 샤워꼭지와 같은 온수배출수단(11)으로 배출된다.In addition, the cold water filled in the cold water storage means 15 is supplied into the hot water mixing means (10) with the cold water of the cold water pipe (7) supplied through the open third opening and closing valve 23, the hot water pipe (6) It is mixed with the hot water supplied through the discharged to the hot water discharge means 11, such as a faucet or shower faucet via the first opening and closing valve 21 is opened.

이처럼, 본 발명에서는 온수를 사용자가 바로 사용할 수 있도록 설정된 온도로 공급하게 되어 온수가 원하는 온도가 될 때까지 계속적으로 물을 낭비하거나 물의 온도를 조절하는 등의 번거로움을 차단할 수 있게 된다.As such, in the present invention, hot water is supplied at a temperature set so that the user can use it immediately, and thus it is possible to block the trouble of continuously wasting water or adjusting the temperature of water until the hot water reaches a desired temperature.

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하였으나, 이는 본 발명의 범주에서 벗어나지 않는 한도내에서 여러가지 변형이 가능함은 물론이다.As described above, specific embodiments have been described in the detailed description of the present invention, but various modifications may be made without departing from the scope of the present invention.

그러므로, 본 발명의 실질적인 범위는 상술된 실시예에 의해 한정되어져서는 안되며, 후술하는 청구범위 뿐만 아니라 청구범위와 균등한 구성에 의해 정해져야 함은 당연하다.Therefore, the substantial scope of the present invention should not be limited by the above-described embodiment, but should be defined by the same structure as the claims as well as the claims described below.

위와 같이 구성되는 본 발명은 온수를 사용자가 바로 사용할 수 있도록 설정된 온도로 공급하게 되어 온수가 원하는 온도가 될 때까지 계속적으로 물을 낭비하거나 물의 온도를 조절하는 등의 번거로움을 차단할 수 있는 효과를 제공하게 된다.The present invention is configured as described above is to supply the hot water at a temperature set so that the user can use immediately, the effect of blocking the hassle such as waste water or adjust the temperature of water until the hot water reaches the desired temperature Will be provided.

Claims (2)

보일러(5)에서 데워진 온수를 온수관(6)을 거쳐 온수혼합수단(10)으로 공급하여 냉수관(7)의 냉수와 혼합한 후, 온수배출수단(11)을 통해 배출하도록 구성되는 온수공급장치에 있어서,A hot water supply configured to supply hot water heated by the boiler 5 to the hot water mixing means 10 through the hot water pipe 6, mixed with cold water of the cold water pipe 7, and then discharged through the hot water discharging means 11. In the apparatus, 온수공급초기에 상기 온수관(6)의 냉수를 냉수저장수단(15)에 일시 저장한 후, 보일러(5)에서 데워진 온수가 온수관(6)을 통해 공급되면 온수혼합수단(10)에서 냉수저장수단(15)의 냉수와 혼합하여 설정온도의 온수를 배출하도록 구성되는 것을 특징으로 하는 절수형 온수공급장치.In the initial stage of hot water supply, the cold water of the hot water pipe 6 is temporarily stored in the cold water storage means 15, and when the hot water warmed from the boiler 5 is supplied through the hot water pipe 6, the cold water from the hot water mixing means 10. Water-saving hot water supply device, characterized in that configured to discharge hot water of the set temperature by mixing with cold water of the storage means (15). 청구항1에 있어서,The method according to claim 1, 제1 내지 제3개폐변(21,22,23)을 각각 상기 온수배출수단(11), 온수관(6), 냉수관(7)을 단속하도록 설치하면서 상기 제3개폐변(23)과 온수혼합수단(10) 사이에 냉수저장수단(15)을 구비하되, 제어기(1)에서 온수온도설정수단(3)과 온/오프수단(2)의 신호에 따라 제2제어변(22)의 개방과 제1,3개폐변(21,23)의 폐쇄를 제어하면 온수관(6)의 냉수가 냉수저장수단(15)에 일시 저장되고 보일러(5)에서 데워진 온수가 온수관(6)을 통해 온수혼합수단(10)에 공급되면 제어기(1)에서 온수혼합수단(10)의 온수온도를 측정하는 온수온도측정센서(24)의 검출신호에 따라 제1,3개폐변(21,23)의 개방을 제어하여 온수배출수단(11)을 통해 온수를 배출하도록 구성되는 것을 특징으로 하는 절수형 온수공급장치.The third open and close sides 21, 22, and 23 are installed so as to control the hot water discharging means 11, the hot water pipe 6, and the cold water pipe 7, respectively. Cold water storage means 15 is provided between the mixing means 10, the opening of the second control valve 22 in accordance with the signal of the hot water temperature setting means 3 and the on / off means (2) in the controller (1) And controlling the closing of the first and third open / close sides 21 and 23, the cold water of the hot water pipe 6 is temporarily stored in the cold water storage means 15, and the hot water heated in the boiler 5 is heated through the hot water pipe 6. When supplied to the hot water mixing means 10, the controller 1 of the first and third openings 21 and 23 according to the detection signal of the hot water temperature measuring sensor 24 measuring the hot water temperature of the hot water mixing means 10. Saving water-type hot water supply device, characterized in that configured to discharge the hot water through the hot water discharge means by controlling the opening.
KR10-2003-0009841A 2003-02-17 2003-02-17 Hot-water supplying apparatus for economization of water KR100506977B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101515971B1 (en) * 2014-03-05 2015-05-04 지에스건설 주식회사 Apparatus for supplying hot water
KR20170001633U (en) 2015-11-02 2017-05-11 티에스케이블(주) Wiring box with a lid having a hinge opening and closing structure
CN109883057A (en) * 2019-01-09 2019-06-14 青岛海尔空调器有限总公司 A kind of mixed water tank and its control method, energy source station

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Publication number Priority date Publication date Assignee Title
KR100757381B1 (en) 2006-03-13 2007-09-11 김영희 Water saving system of hot water boiler
KR101047280B1 (en) * 2008-05-26 2011-07-07 주식회사 한 에너지 시스템 Boiler system with double hot water tank
KR101897698B1 (en) 2016-09-30 2018-09-12 롯데알미늄 주식회사 Water saving system of the boiler
KR101897703B1 (en) 2016-09-30 2018-09-12 롯데알미늄 주식회사 Water saving apparatus of the boiler using hot-water storage tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101515971B1 (en) * 2014-03-05 2015-05-04 지에스건설 주식회사 Apparatus for supplying hot water
KR20170001633U (en) 2015-11-02 2017-05-11 티에스케이블(주) Wiring box with a lid having a hinge opening and closing structure
CN109883057A (en) * 2019-01-09 2019-06-14 青岛海尔空调器有限总公司 A kind of mixed water tank and its control method, energy source station

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