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KR100951152B1 - Gas boiler having closed type cistern tank - Google Patents

Gas boiler having closed type cistern tank Download PDF

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Publication number
KR100951152B1
KR100951152B1 KR1020080018808A KR20080018808A KR100951152B1 KR 100951152 B1 KR100951152 B1 KR 100951152B1 KR 1020080018808 A KR1020080018808 A KR 1020080018808A KR 20080018808 A KR20080018808 A KR 20080018808A KR 100951152 B1 KR100951152 B1 KR 100951152B1
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South Korea
Prior art keywords
expansion tank
heating water
water
heating
pressure
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KR1020080018808A
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Korean (ko)
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KR20090093341A (en
Inventor
민태식
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주식회사 경동나비엔
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Priority to KR1020080018808A priority Critical patent/KR100951152B1/en
Priority to AU2008351482A priority patent/AU2008351482B2/en
Priority to US12/919,773 priority patent/US20110000444A1/en
Priority to UAA201010433A priority patent/UA102242C2/en
Priority to CN2008801276666A priority patent/CN101960230A/en
Priority to EP08872974A priority patent/EP2250449A1/en
Priority to PCT/KR2008/006923 priority patent/WO2009107923A1/en
Publication of KR20090093341A publication Critical patent/KR20090093341A/en
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Publication of KR100951152B1 publication Critical patent/KR100951152B1/en

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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
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • 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
    • F24D2220/048—Level sensors, e.g. water level sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

본 발명은 팽창탱크 내부에 격막이 없는 밀폐형 구조의 팽창탱크를 구비함으로써 팽창탱크의 부피를 소형화할 수 있는 가스보일러를 제공하고자 함에 그 목적이 있다.An object of the present invention is to provide a gas boiler capable of miniaturizing the volume of the expansion tank by having an expansion tank having a sealed structure without a diaphragm inside the expansion tank.

이를 구현하기 위한 본 발명은, 난방환수가 내부에 저장되고 난방수의 압력변화를 흡수하기 위한 팽창탱크를 구비한 가스보일러에 있어서, 상기 팽창탱크는, 난방수가 유입되는 난방수유입구와 난방수가 순환펌프 측으로 유출되는 난방수유출구가 형성되고, 비격막구조로서 내부공간이 대기와 차단된 밀폐형으로 이루어지고; 상기 팽창탱크 내부의 난방수 수위를 감지하는 수위감지센서와, 상기 팽창탱크 내부공간의 압력을 일정압력 이하로 유지시키기 위한 과압안전변이 설치된 것;을 특징으로 한다.The present invention for realizing this, in a gas boiler having an expansion tank for heating the return water is stored therein and absorbs the pressure change of the heating water, the expansion tank, the heating water inlet and the heating water circulation in which the heating water is introduced A heating water outlet opening to the pump side is formed, and as a non-diaphragm structure, the internal space is made of a closed type that is blocked from the atmosphere; And an overpressure safety valve installed to maintain a water pressure level inside the expansion tank and a pressure inside the expansion tank to maintain a pressure below a predetermined pressure.

가스보일러, 팽창탱크, 밀폐, 기수분리, 수위감지센서, 과압안전변 Gas Boiler, Expansion Tank, Airtight, Separation, Water Level Sensor, Overpressure Safety Valve

Description

밀폐형 팽창탱크를 구비한 가스보일러{GAS BOILER HAVING CLOSED TYPE CISTERN TANK}GAS BOILER WITH CLOSED EXPANSION TANK {GAS BOILER HAVING CLOSED TYPE CISTERN TANK}

본 발명은 밀폐형 팽창탱크를 구비한 가스보일러에 관한 것으로, 보다 상세하게는 팽창탱크의 용량을 소형화하고 별도의 기수분리기가 필요없는 밀폐형 팽창탱크를 구비한 가스보일러에 관한 것이다.The present invention relates to a gas boiler having a hermetic expansion tank, and more particularly, to a gas boiler having a hermetic expansion tank which has a smaller capacity of the expansion tank and does not require a separate separator.

일반적으로 가스보일러에는 대기개방형 가스보일러와 대기차단형 가스보일러가 있다. In general, gas boilers include an atmospheric open gas boiler and an atmospheric shutoff gas boiler.

도 1은 종래의 대기개방형 가스보일러의 구성을 보여주는 개략도이다.1 is a schematic view showing the configuration of a conventional atmospheric open gas boiler.

대기개방형 가스보일러에는, 난방수를 순환시키는 순환펌프(10), 상기 순환펌프(10)에 의해 압송된 난방수에 버너(21)의 열에너지를 전달하기 위한 주열교환기(20), 난방가동시에는 난방배관(난방소요처)으로 난방수를 공급하고 온수사용시에는 온수열교환기(40)측으로 난방수를 공급하는 삼방변(30), 온수사용시 직수를 가열시켜 온수를 공급하는 온수열교환기(40), 난방환수가 내부에 저장되고 난방수의 압력변화를 흡수하기 위한 팽창탱크(50)가 구비된다. 미설명부호 61은 난방수공급관, 62는 난방환수관, 63은 직수관, 64는 온수관이다.In the atmospheric open gas boiler, the circulation pump 10 for circulating the heating water, the main heat exchanger 20 for transferring the heat energy of the burner 21 to the heating water pumped by the circulation pump 10, heating at the time of heating operation Three-way valve (30) for supplying heating water to the piping (heating point) and supplying the heating water to the hot water heat exchanger (40) when using hot water, hot water heat exchanger (40) for supplying hot water by heating direct water when using hot water, Heating return is stored therein and is provided with an expansion tank (50) for absorbing the pressure change of the heating water. Reference numeral 61 denotes a heating water supply pipe, 62 a heating return pipe, 63 a direct water pipe, and 64 a hot water pipe.

상기 팽창탱크(50)에는 내부의 난방수가 정해진 수위 범위 내에 있는지 여부를 감지하기 위한 수위감지센서(51)가 설치되고, 내부의 난방수가 일정 수위를 초과하는 경우 외부로 흘러 넘치도록 오버플로우관(52)이 형성되어 있어 난방수가 대기에 개방된 구조로 되어 있다.The expansion tank 50 is provided with a water level sensor 51 for detecting whether or not the heating water in the inside of the predetermined water level range, the overflow pipe so as to overflow to the outside when the heating water inside the predetermined level ( 52) is formed so that the heating water is open to the atmosphere.

이와 같은 대기개방형 가스보일러는, 구조가 간단하고, 저가인 장점이 있으나, 난방수 순환계가 대기에 개방되어 있어 보일러를 난방배관(난방소요처)보다 낮은 곳에 설치하지 못하므로 위치제약이 따르는 문제점이 있으며, 또한 난방수가 공기에 노출되어 산소가 유입되므로 난방배관 내에 부식이 발생할 염려가 있다.Such an open air gas boiler has the advantages of simple structure and low cost. However, since the heating water circulation system is open to the atmosphere, the boiler cannot be installed at a lower position than the heating pipe (heating requirement). In addition, since the heating water is exposed to the air and oxygen is introduced, there is a risk of corrosion in the heating pipe.

도 2는 종래의 대기차단형 가스보일러의 구성을 보여주는 개략도, 도 3은 종래의 밀폐형 팽창탱크가 설치되기 전의 상태를 보여주는 개략도, 도 4는 도 3의 팽창탱크에 최대압력이 걸렸을 때를 보여주는 개략도이다.Figure 2 is a schematic view showing the configuration of a conventional atmospheric shut-off gas boiler, Figure 3 is a schematic view showing a state before the conventional hermetic expansion tank is installed, Figure 4 is a schematic diagram showing when the maximum pressure is applied to the expansion tank of Figure 3 to be.

대기차단형 가스보일러에는, 순환펌프(10), 주열교환기(20), 버너(21), 삼방변(30), 온수열교환기(40)가 구비된 점에서는 대기개방형 가스보일러와 기본적으로 동일하지만, 팽창탱크(70)가 대기와 차단된 밀폐형이라는 점과 기수분리기(71), 과압안전변(72), 압력계(73)가 추가로 설치된 점에서 대기개방형과 구분된다.Atmospheric cut-off gas boiler is basically the same as the atmospheric open gas boiler in that the circulation pump 10, the main heat exchanger 20, the burner 21, the three-way valve 30, the hot water heat exchanger 40 is provided. , The expansion tank 70 is distinguished from the atmospheric open type in that the sealed type is isolated from the atmosphere and the separator (71), the overpressure safety valve (72), the pressure gauge (73) is further installed.

상기 팽창탱크(70)는 외부 공기가 차단된 밀폐형 탱크로서, 내부에는 고무판(70a)이 설치되고, 상기 고무판(70a)을 사이에 두고 기체(일례로, 질소)가 내부에 수용된 기체저장부(70b)와 난방수가 수용되는 난방수저장부(70c)가 형성되어 있다. 상기 고무판(70a)은 작용하는 압력에 따라 변형됨으로써 난방수의 압력변화를 흡수하도록 되어 있다. 난방수저장부(70c)는 난방환수가 통과하는 배관과 연결되어 있다.The expansion tank 70 is a sealed tank in which external air is blocked, and a rubber plate 70a is installed therein, and a gas storage unit in which a gas (for example, nitrogen) is accommodated therebetween with the rubber plate 70a therebetween ( 70b) and a heating water storage part 70c in which the heating water is accommodated are formed. The rubber plate 70a is adapted to absorb the pressure change of the heating water by being deformed according to the acting pressure. The heating water storage unit 70c is connected to a pipe through which the heating return water passes.

상기와 같은 대기차단형 가스보일러는, 대기개방형 가스보일러와 달리 보일러의 설치위치에 제약을 받지 않고, 난방수 순환계가 대기와 차단되어 있어 난방수로 산소가 유입되는 것을 방지할 수 있는 장점이 있는 반면, 구조가 복잡하고 가격이 비싼 단점이 있으며, 특히 기수분리기가 필요하고 기수분리기가 있어도 배관 내의 공기 제거가 어려운 문제점이 있다.Unlike the atmospheric open gas boiler, the above-described atmospheric cut-off gas boiler is not limited to the installation position of the boiler, and the heating water circulation system is blocked from the atmosphere, which has the advantage of preventing oxygen from flowing into the heating water. On the other hand, there is a disadvantage in that the structure is complicated and expensive, in particular, there is a problem in that it is difficult to remove the air in the pipe even if the separator and the separator.

또한 대기차단형 가스보일러는 팽창탱크 내의 압력이 대기압 이하가 되면 진공이 걸리므로 순환펌프(10)를 가동시키더라도 난방수를 정상적으로 순환시키지 못하기 때문에, 이 경우에는 순환펌프(10)의 가동을 중단시킨 후 자동 또는 수동으로 물을 보충하여야 한다.In addition, since the atmospheric shut-off gas boiler is vacuumed when the pressure in the expansion tank is below atmospheric pressure, even if the circulation pump 10 is operated, the heating water cannot be circulated normally. In this case, the operation of the circulation pump 10 is stopped. The water must be replenished automatically or manually after stopping.

또한 대기차단형 가스보일러는 팽창탱크를 충분히 활용하지 못하는 문제점이 있다. 즉, 도 4에 도시된 바와 같이, 난방수의 압력이 최대로 걸렸을 때 기체저장부(70b)에 질소가 압축되어 있는 공간이 필요하게 되고, 이 공간은 팽창된 난방수를 흡수하지 못하여 불필요한 공간이 발생하게 된다.In addition, there is a problem that the standby gas boiler does not fully utilize the expansion tank. That is, as shown in FIG. 4, when the pressure of the heating water is at maximum, a space in which nitrogen is compressed is required in the gas storage part 70b, and this space does not absorb the expanded heating water and thus is unnecessary space. This will occur.

본 발명은 상술한 제반 문제점을 해결하고자 안출된 것으로, 팽창탱크 내부에 격막이 없는 밀폐형 구조의 팽창탱크를 구비함으로써 팽창탱크의 부피를 소형화할 수 있는 가스보일러를 제공하고자 함에 그 목적이 있다.An object of the present invention is to provide a gas boiler capable of miniaturizing the volume of an expansion tank by providing an expansion tank having a hermetic structure without a diaphragm in the expansion tank.

본 발명의 다른 목적은 별도의 기수분리기를 구비하지 않고도 팽창탱크가 기수분리기의 기능을 할 수 있는 가스보일러를 제공하고자 함에 있다.Another object of the present invention is to provide a gas boiler in which the expansion tank can function as a separator without having a separate separator.

또한 본 발명은 팽창탱크 내부에 대기압 이하의 압력이 걸리더라도 순환펌프의 가동을 중단하지 않고 정상적으로 작동시킬 수 있는 가스보일러를 제공하고자 함에 그 목적이 있다.In addition, an object of the present invention is to provide a gas boiler that can operate normally without stopping the operation of the circulation pump even if the pressure below the atmospheric pressure inside the expansion tank.

상술한 바와 같은 목적을 구현하기 위한 본 발명은, 난방환수가 내부에 저장되고 난방수의 압력변화를 흡수하기 위한 팽창탱크를 구비한 가스보일러에 있어서, 상기 팽창탱크는, 난방수가 유입되는 난방수유입구와 난방수가 순환펌프 측으로 유출되는 난방수유출구가 형성되고, 비격막구조로서 내부공간이 대기와 차단된 밀폐형으로 이루어지고; 상기 팽창탱크 내부의 난방수 수위를 감지하는 수위감지센서와, 상기 팽창탱크 내부공간의 압력을 일정압력 이하로 유지시키기 위한 과압안전변이 설치된 것;을 특징으로 한다.The present invention for realizing the object as described above, in the gas boiler having an expansion tank for heating the return water is stored therein and absorbs the pressure change of the heating water, the expansion tank, the heating water supply in which the heating water is introduced A heating water outlet for inlet and heating water flowing out to the circulation pump is formed, and the non-diaphragm structure is formed in a sealed type in which the internal space is blocked from the atmosphere; And an overpressure safety valve installed to maintain a water pressure level inside the expansion tank and a pressure inside the expansion tank to maintain a pressure below a predetermined pressure.

이 경우 상기 과압안전변은 상기 팽창탱크의 최상단부에 설치되어 난방수보다 공기가 먼저 배출되는 것으로 구성될 수 있다.In this case, the overpressure safety valve may be installed at the top end of the expansion tank and may be configured to discharge air before the heating water.

또한 상기 팽창탱크는 순환펌프의 입구측에 근접하게 설치되어 상기 팽창탱크에서 기수분리가 이루어지는 것으로 구성될 수 있다.In addition, the expansion tank is installed close to the inlet side of the circulation pump may be composed of the separation of water from the expansion tank.

또한 상기 수위감지센서의 하단부는 상기 팽창탱크의 바닥면에 근접하도록 설치된 것으로 구성될 수 있다.In addition, the lower end of the water level sensor may be configured to be installed close to the bottom surface of the expansion tank.

또한 상기 수위감지센서에서 적정수위로 감지된 경우에는 팽창탱크 내부의 압력이 대기압 이하인 경우에도 상기 순환펌프는 정상 가동되는 것으로 구성될 수 있다.In addition, when the proper level is detected by the water level sensor, the circulation pump may be configured to operate normally even when the pressure inside the expansion tank is below atmospheric pressure.

본 발명에 의하면, 밀폐형 팽창탱크 내부에 격막이 없는 구조이므로 팽창탱크의 제작이 용이하고 팽창탱크의 부피를 소형화할 수 있다.According to the present invention, since the structure does not have a diaphragm inside the hermetic expansion tank, the expansion tank can be easily manufactured and the volume of the expansion tank can be reduced.

또한 팽창탱크 내부의 압력이 대기압 이하가 되더라도 보일러의 가동을 중단함이 없이 정상적으로 가동할 수 있다.In addition, even if the pressure inside the expansion tank is below atmospheric pressure it can be operated normally without stopping the operation of the boiler.

또한 난방수 순환계를 밀폐형으로 구성하면서도 별도의 기수분리기를 설치하지 않고도 기수분리가 원활히 이루어질 수 있다.In addition, even though the heating water circulation system is configured in a sealed type, the separation of water can be performed smoothly without installing a separate water separator.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명의 밀폐형 팽창탱크를 구비한 가스보일러를 보여주는 개략도이다.5 is a schematic view showing a gas boiler with a closed expansion tank of the present invention.

본 발명의 가스보일러에는, 난방수를 순환시키는 순환펌프(10), 상기 순환펌프(10)에 의해 압송된 난방수에 버너(21)의 열에너지를 전달하기 위한 주열교환기(20), 난방가동시에는 난방배관(난방소요처)으로 난방수를 공급하고 온수사용시에는 온수열교환기(40)측으로 난방수를 공급하는 삼방변(30), 온수사용시 직수를 가열시켜 온수를 공급하는 온수열교환기(40), 난방수공급관(61), 난방환수관(62), 직수관(63), 온수관(64)이 종래와 동일하게 구비된다.In the gas boiler of the present invention, the circulation pump 10 for circulating the heating water, the main heat exchanger 20 for transferring the heat energy of the burner 21 to the heating water pumped by the circulation pump 10, at the time of heating operation Three-way valve (30) for supplying heating water to the heating pipe (heating requirements) and heating water when using hot water, the hot water heat exchanger (40) for supplying hot water by heating direct water when using hot water. , The heating water supply pipe 61, the heating return pipe 62, the direct water pipe 63, the hot water pipe 64 is provided in the same manner as in the prior art.

본 발명은 밀폐형 팽창탱크(100)를 구비한다. 상기 팽창탱크(100)는 내부에 격막이 없는 구조로서, 내부에 수용된 난방수가 대기와 접촉하지 않는 밀폐형으로 이루어져, 난방수 순환계를 대기차단형으로 구성하게 된다.The present invention includes a hermetic expansion tank (100). The expansion tank 100 has a structure without a diaphragm therein, and is formed in a sealed type in which the heating water contained therein does not come into contact with the atmosphere.

상기 팽창탱크(100)의 상부에는 수위감지센서(110)가 설치된다. 상기 수위감지센서(110)는 단축도전체(110a)와 장축도전체(110b)로 이루어지고, 단축도전체(110a)와 장축도전체(110b) 사이의 저항을 측정하여 팽창탱크(100) 내에 적정량의 난방수가 있는지를 판단한다. The water level detection sensor 110 is installed on the upper portion of the expansion tank 100. The water level sensor 110 is composed of a single-axis conductor (110a) and a long-axis conductor (110b), measuring the resistance between the single-axis conductor (110a) and the long-axis conductor (110b) in the expansion tank (100) Determine if there is adequate amount of heating water.

이 경우 팽창탱크(100) 내부에 공기가 존재하는 공간을 충분히 확보하기 위하여, 상기 수위감지센서(110)의 단축도전체(110a)와 장축도전체(110b) 하단부는 팽창탱크(100)의 바닥면에 근접하도록 설치되는 것이 바람직하다.In this case, in order to sufficiently secure a space in which the air exists in the expansion tank 100, the lower end of the single-axis conductor 110a and the long-axis conductor 110b of the water level sensor 110, the bottom of the expansion tank 100 It is preferable to be installed close to the surface.

본 실시예에서는 상기 수위감지센서(110)가 팽창탱크(100)의 상단부에 설치되어 있으나, 수위감지센서(110)의 길이를 짧게 하여 팽창탱크(100)의 측면하부 또는 바닥면에 설치할 수도 있고, 순환펌프(10)와 팽창탱크(100) 사이의 연결관에 설치하여 난방수의 존재 여부를 감지하는 센서의 구성으로 대체하는 것도 가능하다.In this embodiment, the water level sensor 110 is installed on the upper end of the expansion tank 100, but may be installed on the lower side or bottom surface of the expansion tank 100 by shortening the length of the water level sensor 110. In addition, it is also possible to replace the configuration of the sensor to detect the presence of the heating water installed in the connection pipe between the circulation pump 10 and the expansion tank (100).

상기 팽창탱크(100)의 상부에는 팽창탱크(100) 내부공간의 압력을 일정압력 이하로 유지시키기 위한 과압안전변(120)이 설치된다. 상기 과압안전변(120)은, 일례로, 내부에 스프링이 구비되고 팽창탱크(100) 내부공간의 압력이 스프링의 탄성력보다 커지게 되면 밸브가 열려 팽창탱크(100) 내부의 공기를 외부로 배출시켜 압력을 하강시키도록 구성된다.An overpressure safety valve 120 is installed at an upper portion of the expansion tank 100 to maintain the pressure of the internal space of the expansion tank 100 below a predetermined pressure. The overpressure safety valve 120, for example, is provided with a spring therein and when the pressure in the expansion tank 100 is greater than the elastic force of the spring opens the valve to discharge the air in the expansion tank 100 to the outside And to lower the pressure.

이 경우 상기 과압안전변(120)은 팽창탱크(100)의 최상단부에 설치되어, 팽창탱크(100) 내부에 수용된 난방수보다 상부의 공기가 먼저 배출되는 것이 바람직하다.In this case, the overpressure safety valve 120 is installed at the upper end of the expansion tank 100, it is preferable that the upper air is discharged earlier than the heating water contained in the expansion tank (100).

상기 팽창탱크(100)의 하부 바닥에는 난방환수관(62)과 연결되어 난방수가 유입되는 난방수유입구(100a)와 팽창탱크(100) 내부에 저장된 난방수가 순환펌프(10) 측으로 유출되는 난방수유출구(100b)가 형성되어 있다. The heating bottom of the expansion tank 100 is connected to the heating return pipe 62 and the heating water inlet 100a into which the heating water flows and the heating water stored in the expansion tank 100 to discharge the heating water to the circulation pump 10. The outlet 100b is formed.

또한 본 발명은 난방수 순환계가 대기차단형이므로 난방수에 유입된 공기를 분리하는 것이 필요한데, 상기 팽창탱크(100)에서 기수분리가 이루어지므로 별도의 기수분리기를 구비할 필요가 없다.In addition, in the present invention, since the heating water circulation system is an air-blocking type, it is necessary to separate the air introduced into the heating water, and since the water separation is performed in the expansion tank 100, there is no need to provide a separate water separator.

이 경우 순환펌프(10)로 기포가 유입되는 것을 방지하기 위하여, 팽창탱크(100)는 순환펌프(10)의 입구측(10a)에 근접하게 설치되는 것이 바람직하다. In this case, in order to prevent bubbles from flowing into the circulation pump 10, the expansion tank 100 is preferably installed near the inlet side 10a of the circulation pump 10.

이하 본 발명에 의한 가스보일러의 작용을 설명한다.Hereinafter, the operation of the gas boiler according to the present invention will be described.

도 5를 참조하면, 난방배관 내의 난방수 순환시 공기가 팽창탱크로 유입되는 경우, 유입된 공기가 작은 경우에는 팽창탱크(100)의 내부 상측 공간에서 공기를 흡수하게 되고, 유입된 공기가 많은 경우에는 팽창탱크(100) 내부의 난방수 수위가 낮아지므로 수위감지센서(110)에서 적정수위 이하라고 판단되면 자동보충수밸브(도면에 미도시)를 통해 물이 공급된다.Referring to FIG. 5, when the air is introduced into the expansion tank during circulation of the heating water in the heating pipe, when the introduced air is small, the air is absorbed in the upper space inside the expansion tank 100, and the introduced air has a lot of air. In this case, since the water level of the heating water in the expansion tank 100 is lowered, when the water level sensor 110 determines that the water level is lower than the appropriate level, water is supplied through an automatic refill water valve (not shown).

이와 같이 물이 공급되어 팽창탱크(100) 내부 압력이 허용압력 이하이면 그대로 작동하고, 팽창탱크(100) 내부 압력이 허용압력 이상이면 과압안전변(120)이 작동되어 공기를 외부로 배출시킨다.As such, when water is supplied and the pressure inside the expansion tank 100 is lower than the allowable pressure, the pressure is operated as it is. When the pressure inside the expansion tank 100 is higher than the allowable pressure, the overpressure safety valve 120 is operated to discharge air to the outside.

도 6은 현재 보일러 분야의 일반적인 관례에 따를 때 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 충분한 경우를 나타내는 도면이다.6 is a view showing a case in which the expansion tank capacity of the present invention is sufficient compared to the water supply capacity of the heating pipe according to the general practice in the current boiler field.

도 6(a)는 난방수 수온이 떨어져 난방수압이 최소인 경우를 나타내고 있고, 도 6(b)는 난방수 수온의 상승으로 난방수압이 최대인 경우를 나타내고 있다. 따라서 난방수압의 변화에 따라 팽창탱크(100) 내의 수위만 변화하게 되고, 팽창탱크(100) 내의 압력은 항상 정압으로 유지된다.FIG. 6 (a) shows a case where the heating water temperature drops and the heating water pressure is minimum, and FIG. 6 (b) shows a case where the heating water pressure is maximum due to the increase in the heating water temperature. Therefore, only the water level in the expansion tank 100 changes according to the change in the heating water pressure, and the pressure in the expansion tank 100 is always maintained at a constant pressure.

도 7은 현재 보일러 분야의 일반적인 관례에 따를 때 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 충분하지 않은 경우를 나타내는 도면이다.7 is a view showing a case in which the expansion tank capacity of the present invention is not sufficient compared to the water supply capacity of the heating pipe according to the general practice in the current boiler field.

도 7(a)는 보일러의 최초 설치 후 보일러 사용 전 팽창탱크를 나타내고 있고, 도 7(b)는 보일러의 최초 사용시 난방수 수온의 상승으로 난방수압이 최대인 경우를 나타내고 있으며, 도 7(c)는 난방가동의 정지로 난방수 수온이 떨어져 난방 수압이 최소인 경우를 나타내고 있다. Figure 7 (a) shows the expansion tank before the boiler is used after the initial installation of the boiler, Figure 7 (b) shows the case where the heating water pressure is the maximum due to the increase in the heating water temperature during the first use of the boiler, Figure 7 (c ) Shows the case where the heating water temperature is low due to the stop of heating operation and the heating water pressure is minimum.

도 7(b)에서와 같이 난방수압이 최대가 되어 팽창탱크(100) 내부의 압력이 허용압력 이상이 되면 과압안전변(120)이 개방되어 공기를 외부로 배출시키고 난방수의 수위는 매우 높아지게 된다.As shown in FIG. 7 (b), when the heating water pressure is maximized and the pressure inside the expansion tank 100 becomes higher than the allowable pressure, the overpressure safety valve 120 is opened to discharge air to the outside and the level of the heating water is very high. .

그 후 도 7(c)에서와 같이 난방수압이 최소가 되는 경우에는 팽창탱크(100) 내부의 압력이 경우에 따라서는 대기압 이하가 될 수 있는데, 이 경우에도 보일러는 정상적으로 가동된다.Thereafter, when the heating water pressure is minimized as shown in FIG. 7C, the pressure inside the expansion tank 100 may be lower than atmospheric pressure in some cases. In this case, the boiler is normally operated.

도 8은 현재 보일러 분야의 일반적인 관계에 따를 때 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 과도하게 작은 경우를 나타내는 도면이다.8 is a view showing a case in which the expansion tank capacity of the present invention is excessively small compared to the water supply capacity of the heating pipe according to the general relationship in the current boiler field.

도 8(a)는 보일러의 최초 설치 후 보일러 사용 전 팽창탱크를 나타내고 있고, 도 8(b)는 보일러의 최초 사용시 난방수 수온의 상승으로 난방수압이 최대인 경우를 나타내고 있고, 도 8(c)는 난방가동의 정지로 난방수 수온이 떨어져 난방수압이 최소인 경우를 나타내고 있으며, 도 8(d)는 도 8(c) 상태에서 자동보충수밸브를 통해 물이 보충된 경우를 나타내고 있다.FIG. 8 (a) shows the expansion tank before the boiler is used after the initial installation of the boiler. FIG. 8 (b) shows the case where the heating water pressure is the maximum due to the increase in the heating water temperature during the first use of the boiler. ) Shows a case in which the heating water temperature is reduced due to the stop of heating operation, and the heating water pressure is minimum, and FIG. 8 (d) shows a case where water is replenished through the automatic refill water valve in the state of FIG. 8 (c).

도 8(b)에서와 같이 난방수압이 허용 최대치에 도달하면 팽창탱크 내부는 난방수로 가득차게 되고 공기층이 없어지게 된다. 이 상태에서 도 8(c)에서와 같이 난방수압이 최소가 되면 수위가 감소하고, 만약 수위감지센서(120)에 의해 난방수가 부족하다고 판단되면 자동보충수밸브를 작동시켜 물을 보충하게 된다. 이후에는 상기 사이클을 반복하게 된다.As shown in FIG. 8 (b), when the heating water pressure reaches the maximum allowable value, the inside of the expansion tank is filled with the heating water, and the air layer disappears. In this state, as shown in FIG. 8 (c), when the heating water pressure becomes minimum, the water level decreases, and if the heating water is determined to be insufficient by the water level sensor 120, the automatic refill water valve is operated to replenish water. After that, the cycle is repeated.

상기에서 살펴본 바와 같이, 본 발명은 난방배관 내의 관수용량에 관계없이 보일러를 정상적으로 작동시킬 수 있고, 격막이 없는 팽창탱크를 사용하면서도 밀폐형 시스템으로 구성할 수 있어 별도의 기수분리기가 불필요하고 종래에 비하여 팽창탱크 용량을 줄일 수 있다.As described above, the present invention can operate the boiler normally irrespective of the irrigation capacity in the heating pipe, and can be configured as a closed system using an expansion tank without a diaphragm, so that no separate separator is required and compared to the conventional art. Expansion tank capacity can be reduced.

이상, 본 발명을 실시 예를 사용하여 설명하였으나 이들 실시예는 예시적인 것에 불과하며 본 발명이 속하는 기술 분야에서 통상의 지식을 지닌 자라면 본 발명의 사상에서 벗어나지 않으면서 다양한 수정과 변경을 가할 수 있음을 이해할 수 있을 것이다.As described above, the present invention has been described using embodiments, but these embodiments are merely exemplary, and those skilled in the art may make various modifications and changes without departing from the spirit of the present invention. I can understand that.

도 1은 종래의 대기개방형 가스보일러의 구성을 보여주는 개략도,1 is a schematic view showing the configuration of a conventional atmospheric open gas boiler,

도 2는 종래의 대기차단형 가스보일러의 구성을 보여주는 개략도, Figure 2 is a schematic diagram showing the configuration of a conventional atmospheric cut-off gas boiler,

도 3은 종래의 밀폐형 팽창탱크가 설치되기 전의 상태를 보여주는 개략도,3 is a schematic view showing a state before the conventional hermetic expansion tank is installed,

도 4는 도 3의 팽창탱크에 최대압력이 걸렸을 때를 보여주는 개략도,Figure 4 is a schematic diagram showing when the maximum pressure is applied to the expansion tank of Figure 3,

도 5는 본 발명의 밀폐형 팽창탱크를 구비한 가스보일러를 보여주는 개략도,5 is a schematic view showing a gas boiler with an hermetic expansion tank of the present invention;

도 6은 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 충분한 경우를 나타내는 도면,6 is a view showing a case in which the expansion tank capacity of the present invention is sufficient than the water supply capacity of the heating pipe,

도 7은 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 충분하지 않은 경우를 나타내는 도면,7 is a view showing a case in which the expansion tank capacity of the present invention is not sufficient compared to the water supply capacity of the heating pipe,

도 8은 본 발명의 팽창탱크 용량이 난방배관의 관수용량에 비하여 과도하게 작은 경우를 나타내는 도면.8 is a view showing a case in which the expansion tank capacity of the present invention is excessively small compared to the irrigation capacity of the heating pipe.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 순환펌프 20 : 주열교환기10: circulation pump 20: main heat exchanger

21 : 버너 30 : 삼방변21: burner 30: trilateral

40 : 온수열교환기 100 : 팽창탱크40: hot water heat exchanger 100: expansion tank

110 : 수위감지센서 120 : 과압안전변110: water level sensor 120: overpressure safety valve

Claims (5)

난방환수가 내부에 저장되고 난방수의 압력변화를 흡수하기 위한 팽창탱크를 구비한 가스보일러에 있어서,In a gas boiler having an expansion tank for heating return is stored therein and absorbs the pressure change of the heating water, 상기 팽창탱크는, 난방수가 유입되는 난방수유입구와 난방수가 순환펌프 측으로 유출되는 난방수유출구가 형성되고, 비격막구조로서 내부공간이 대기와 차단된 밀폐형으로 이루어지고;The expansion tank has a heating water inlet through which the heating water flows in and a heating water outlet through which the heating water flows out to the circulation pump, and has a non-diaphragm structure, which is formed in a sealed type in which an internal space is blocked from the atmosphere; 상기 팽창탱크 내부의 난방수 수위를 감지하는 수위감지센서와, 상기 팽창탱크 내부공간의 압력을 일정압력 이하로 유지시키기 위한 과압안전변이 설치되고;A level sensor for sensing the level of heating water in the expansion tank and an overpressure safety valve for maintaining the pressure in the expansion tank at a predetermined pressure or less; 상기 팽창탱크는 순환펌프의 입구측에 근접하게 설치되어 상기 팽창탱크에서 난방수와 난방수 중에 포함된 기체의 기수분리가 이루어지는 것;을 특징으로 하는 밀폐형 팽창탱크를 구비한 가스보일러.The expansion tank is installed in close proximity to the inlet side of the circulation pump to perform the separation of the gas contained in the heating water and the heating water in the expansion tank; Gas boiler with a closed expansion tank characterized in that the. 제1항에 있어서, 상기 과압안전변은 상기 팽창탱크의 최상단부에 설치되어 난방수보다 공기가 먼저 배출되는 것을 특징으로 하는 밀폐형 팽창탱크를 구비한 가스보일러.The gas boiler of claim 1, wherein the overpressure safety valve is installed at an upper end of the expansion tank so that air is discharged before heating water. 삭제delete 제1항 또는 제2항에 있어서, 상기 수위감지센서의 하단부는 상기 팽창탱크의 바닥면에 근접하도록 설치된 것을 특징으로 하는 밀폐형 팽창탱크를 구비한 가스보일러.The gas boiler according to claim 1 or 2, wherein a lower end of the water level sensor is installed to be close to a bottom surface of the expansion tank. 제1항 또는 제2항에 있어서, 상기 수위감지센서에서 적정수위로 감지된 경우에는 팽창탱크 내부의 압력이 대기압 이하인 경우에도 상기 순환펌프는 정상 가동되는 것을 특징으로 하는 밀폐형 팽창탱크를 구비한 가스보일러.The gas having a closed expansion tank according to claim 1 or 2, wherein when the water level sensor detects the proper level, the circulation pump operates normally even when the pressure inside the expansion tank is below atmospheric pressure. Boiler.
KR1020080018808A 2008-02-29 2008-02-29 Gas boiler having closed type cistern tank KR100951152B1 (en)

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KR1020080018808A KR100951152B1 (en) 2008-02-29 2008-02-29 Gas boiler having closed type cistern tank
AU2008351482A AU2008351482B2 (en) 2008-02-29 2008-11-24 Gas boiler having closed-type cistern tank
US12/919,773 US20110000444A1 (en) 2008-02-29 2008-11-24 Gas boiler having closed-type cistern tank
UAA201010433A UA102242C2 (en) 2008-02-29 2008-11-24 Enclosed tank of a gas boiler
CN2008801276666A CN101960230A (en) 2008-02-29 2008-11-24 Gas boiler having closed-type cistern tank
EP08872974A EP2250449A1 (en) 2008-02-29 2008-11-24 Gas boiler having closed-type cistern tank
PCT/KR2008/006923 WO2009107923A1 (en) 2008-02-29 2008-11-24 Gas boiler having closed-type cistern tank

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US20110000444A1 (en) 2011-01-06
AU2008351482A1 (en) 2009-09-03
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AU2008351482B2 (en) 2012-07-12
CN101960230A (en) 2011-01-26

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