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KR100466783B1 - Condensing Oil Boiler - Google Patents

Condensing Oil Boiler Download PDF

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Publication number
KR100466783B1
KR100466783B1 KR10-2003-0015323A KR20030015323A KR100466783B1 KR 100466783 B1 KR100466783 B1 KR 100466783B1 KR 20030015323 A KR20030015323 A KR 20030015323A KR 100466783 B1 KR100466783 B1 KR 100466783B1
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KR
South Korea
Prior art keywords
heat exchanger
latent heat
heating
outlet
oil boiler
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KR10-2003-0015323A
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Korean (ko)
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KR20040080517A (en
Inventor
최병일
양광열
조명환
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주식회사 경동보일러
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Priority to KR10-2003-0015323A priority Critical patent/KR100466783B1/en
Publication of KR20040080517A publication Critical patent/KR20040080517A/en
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Publication of KR100466783B1 publication Critical patent/KR100466783B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081Heat exchange elements made from metals or metal alloys
    • F28F21/082Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F28F21/083Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/287Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

본 발명은 기름보일러에 관한 것으로서, 기름보일러의 열효율을 높이기 위해 버너로 유입되는 급기공기를 예열하고 외부로 배출되는 고온의 배기가스로부터 열을 재흡수할 수 있는 잠열교환기가 설치된 콘덴싱 기름보일러에 관한 것이다.The present invention relates to an oil boiler, and relates to a condensing oil boiler equipped with a latent heat exchanger capable of preheating the air supply flowing into the burner and re-absorbing heat from the high-temperature exhaust gas discharged to the outside in order to increase the thermal efficiency of the oil boiler. will be.

이를 위한 본 발명은 공급된 기름을 연소시키는 버너(10), 난방수가 저장되고 난방수입출구(22, 23)가 형성되며 내측에 연소실(21)과 연도(24)가 형성된 주열교환기(20), 난방수가 저장되고 난방수입출구(32, 33)가 형성되며 내측에 연도(31)가 형성된 잠열교환기(30), 상기 주열교관기(20)와 잠열교환기(30)의 연도(24, 31)를 연결하는 급기예열케이스(40), 잠열열교환기(30)의 연도(31) 타단에 설치되고 바닥면에 배출구(51)가 형성된 응축수수집조(50), 배출구(51)에 설치되는 중화처리기(60), 응축수수집조(50)의 배기구(53)에 설치되는 배기관(70)으로 구성된 것을 특징으로 한다.The present invention for this purpose is a burner (10) for burning the supplied oil, the heating water is stored and the main heat exchanger 20 is formed with the heating water import and export outlets 22, 23 and the combustion chamber 21 and the flue 24 therein, Heating water is stored, the heating import and export outlet (32, 33) is formed and the latent heat exchanger 30, the flue 31 is formed on the inside, the year (24, 31) of the main heat inductor 20 and the latent heat exchanger (30) The air supply preheating case 40 to be connected, the neutralization processor installed at the other end of the year 31 of the latent heat exchanger 30, the outlet 51 is formed on the bottom surface of the condensate collection tank 50, the outlet 51 60), characterized in that the exhaust pipe 70 is installed in the exhaust port 53 of the condensate collection tank (50).

Description

콘덴싱 기름보일러{Condensing Oil Boiler}Condensing Oil Boiler

본 발명은 기름보일러에 관한 것으로서, 더욱 상세하게는 기름보일러의 열효율을 높이기 위해 버너로 유입되는 급기공기를 예열하고 외부로 배출되는 고온의 배기가스로부터 열을 재흡수할 수 있는 잠열교환기가 설치된 콘덴싱 기름보일러에 관한 것이다.The present invention relates to an oil boiler, and more particularly, condensing provided with a latent heat exchanger capable of preheating the air supply flowing into the burner and re-absorbing heat from the high-temperature exhaust gas discharged to the outside to increase the thermal efficiency of the oil boiler. It's about an oil boiler.

LNG, LPG를 사용하는 가스보일러의 경우에 현열교환기와 잠열교환기가 구비된 콘덴싱보일러가 일반화되어 열효율 증대를 통한 연료비 절감효과를 얻고 있다.In the case of gas boilers using LNG and LPG, condensing boilers equipped with sensible heat exchangers and latent heat exchangers have become common, and thus fuel costs have been reduced by increasing thermal efficiency.

그러나, 기름보일러의 경우는 가스보일러와 같이 잠열교환기를 설치하여 열효율증대를 꾀하지 못하고 있는 실정인데, 그 이유는 다음과 같다.However, in the case of oil boilers, a latent heat exchanger is not installed to increase thermal efficiency like gas boilers, and the reason is as follows.

첫째, 기름보일러의 경우 잠열교환기 추가할 경우 보일러의 생산단가와 그 크기가 증가되고; 둘째, 잠열교환기를 설치할 경우 연소가스가 냉각되어 강산성의 응축수를 배출하여 환경오염 문제를 야기시키며; 세째, 발생된 응축수로 인해 잠열교환기에 심각한 부식이 일어날 수 있다는 것이였다.First, in the case of oil boiler, the production cost and size of the boiler are increased when the latent heat exchanger is added; Second, when the latent heat exchanger is installed, the combustion gas is cooled to discharge the strong acid condensate, causing environmental pollution problems; Third, the condensate generated could cause severe corrosion in the latent heat exchanger.

본 발명은 상기와 같은 점을 감안하여 발명된 것으로서, 부식에 강한 재질을이용하여 잠열교환기를 설치하고 잠열교환기 하단에 응축수중화처리기를 설치함으로서 열효율이 증대된 콘덴싱 기름보일러를 제공하는 것을 그 목적으로 한다.The present invention has been invented in view of the above points, and by providing a latent heat exchanger using a material resistant to corrosion and providing a condensing oil boiler with increased heat efficiency by installing a condensation neutralization treatment unit at the bottom of the latent heat exchanger. do.

도 1은 본 발명의 일실시예에 따른 구성도1 is a block diagram according to an embodiment of the present invention

도 2는 본 발명의 일실시예에 따른 급기예열케이스의 단면사시도Figure 2 is a cross-sectional perspective view of the air supply preheating case according to an embodiment of the present invention

도 3은 본 발명의 일실시예에 따른 사용상태도3 is a state diagram used in accordance with an embodiment of the present invention

도 4는 본 발명의 다른 실시예에 따른 구성도4 is a block diagram according to another embodiment of the present invention

도 5는 본 발명의 다른 실시예에 따른 사용상태도5 is a state diagram used in accordance with another embodiment of the present invention

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10 : 버너 20 : 주열교환기10: burner 20: main heat exchanger

21 : 연소실 22 : 난방수출구21: combustion chamber 22: heating outlet

30 : 잠열교환기 31 : 연도30: latent heat exchanger 31: year

32 : 난방수입구32: heating inlet

40 : 급기예열케이스 41 : 공기통로40: air supply preheating case 41: air passage

50 : 응축수수집조 51 : 배출구50: condensate collection tank 51: outlet

55 : 수위감지기 60 : 중화처리기55: level sensor 60: neutralization processor

70 : 배기관 71 : 과열방지기70: exhaust pipe 71: overheat protector

상기 목적을 달성하기 위한 본 발명은 공급된 기름을 연소시키는 버너, 난방수가 저장되고 난방수입출구가 형성되며 내측에 연소실과 연도가 형성된 주열교환기, 난방수가 저장되고 난방수입출구가 형성되며 내측에 연도가 형성된 잠열교환기, 상기 주열교관기와 잠열교환기의 연도를 연결하는 급기예열케이스, 잠열열교환기의 연도 타단에 설치되고 바닥면에 배출구가 형성된 응축수수집조, 배출구에 설치되는 중화처리기, 응축수수집조의 배기구에 설치되는 배기관으로 구성된 것을 특징으로 한다.In order to achieve the above object, the present invention provides a burner for burning the supplied oil, heating water is stored, a heating import outlet is formed, a main heat exchanger formed with a combustion chamber and flue inside, heating water is stored, a heating import outlet is formed, and the inside is flue. Formed latent heat exchanger, the air supply preheating case connecting the year of the main heat inductor and the latent heat exchanger, the condensate collection tank is installed at the other end of the year of the latent heat exchanger, the outlet is formed on the bottom surface, the neutralization processor installed on the outlet, the exhaust port of the condensate collection tank Characterized in that consisting of the exhaust pipe is installed in.

또한, 상기 난방수입구에 펌프 및 삼방밸브가 설치되고 삼방밸브와 난방수출구가 급탕배관에 의해 연결되는 것을 특징으로 한다.In addition, the pump and the three-way valve is installed in the heating inlet is characterized in that the three-way valve and the heating export port is connected by a hot water supply pipe.

또한, 상기 잠열교환기는 STS316Ti 재질로 된 것을 특징으로 한다.In addition, the latent heat exchanger is characterized in that the STS316Ti material.

또한, 급기예열케이스는 버너로 유입되는 공기통로가 형성된 것을 특징으로 한다.In addition, the air supply preheating case is characterized in that the air passage flowing into the burner is formed.

또한, 응축수수집조는 수위감지지기가 설치된 것을 특징으로 한다.In addition, the condensate collection tank is characterized in that the level sensor is installed.

또한, 응축수수집조 또는 배기구는 버너의 작동을 제어하는 과열방지기가 설치된 것을 특징으로 한다.In addition, the condensate collection tank or the exhaust port is characterized in that the overheat protector for controlling the operation of the burner.

아울러, 상기 주열교환기와 잠열교환기는 급탕열교환기가 설치되는 것을 특징으로 한다.In addition, the main heat exchanger and the latent heat exchanger is characterized in that the hot water supply heat exchanger is installed.

먼저, 잠열교환기에 사용될 스테인레스 강을 선정하기 위한 시험와 여기에 따른 결과를 살펴본다.First, the test and the results of the selection of the stainless steel to be used in the latent heat exchanger are described.

스테인리스 강의 장점은 우수한 내식성이라고 할 수 있다. 그 종류로서는 오스테나이트계 강종 STS304, STS316, 페라이트계 강종 STS430, STS444, 마르텐사이트게 강종 STS410 등 합금 정도, 조직적 차이 그리고 사용용도에 따라 매우 많은 종류의 스테인리스 강이 있다. 잠열부는 강산의 응축수 및 고온에 의해 심각한 부식이 초래되므로 사용환경에 가장 타당한 스테인리스 강의 선택이 제품의 안전성에 결정적인 역할을 할 것이다. 따라서 재질에 대한 충분한 검증이 필요하다. 참고로 가스 콘덴싱 보일러의 잠열교환기에 사용되는 재질은 STS316L을 사용하고 있다.The advantage of stainless steel is its excellent corrosion resistance. There are very many kinds of stainless steels, such as austenitic steel grades STS304, STS316, ferritic steel grades STS430, STS444, and martensitic steel grades STS410, depending on the alloying degree, organizational differences, and uses. Since the latent heat is severely corroded by the condensate and high temperature of the strong acid, the selection of the most suitable stainless steel for the use environment will play a decisive role in the safety of the product. Therefore, sufficient verification of the material is required. For reference, STS316L is used for latent heat exchanger of gas condensing boiler.

표 1은 스테인레스 강의 국부부식에 대한 저항성을 나타내는 PRE(Pitting Resistance Equivalent)를 수치적으로 나타낸 것이다. 일반적으로 보일러에서 부식에 의한 누수는 국부부식이 주가 되고 있다. 콘덴싱 기름보일러 잠열부에서도 이러한 국부부식에 대한 저항성이 충분히 고려되어야 하므로 PRE 지수가 낮은 STS304L은 잠열부의 재질로서는 부적한 것으로 판단이 된다.Table 1 shows numerically the Pitting Resistance Equivalent (PRE), indicating the resistance to local corrosion of stainless steels. In general, the leakage caused by corrosion in the boiler is mainly local corrosion. In the latent heat of condensing oil boiler, the resistance to local corrosion should be considered sufficiently, so the low STS304L with low PRE index is inadequate for the latent heat material.

스테인레스 강 종류에 따른 PRE(Pitting Resistance Equivalent)PRE (Pitting Resistance Equivalent) according to stainless steel type 종류Kinds 성분ingredient PRE 지수PRE index STS 304LSTS 304L 0.03% C, 18% Cr, 9% Ni0.03% C, 18% Cr, 9% Ni 19.1419.14 STS 316TiSTS 316Ti 0.32% C, 16.8% Cr, 10.6% Ni, 2.08% Mo 0.37% Ti0.32% C, 16.8% Cr, 10.6% Ni, 2.08% Mo 0.37% Ti 23.8223.82 STS 444STS 444 0.03% C, 18.4% Cr, 1.9% Mo, 0.44% Nb0.03% C, 18.4% Cr, 1.9% Mo, 0.44% Nb 26.7126.71 STS 2205STS 2205 0.03% C, 22.0% Cr, 3.0% Mo, 0.15% N0.03% C, 22.0% Cr, 3.0% Mo, 0.15% N 35.4535.45

PRE = Cr % + 3.3(Mo & + 1/2 W %) + 30 N %PRE = Cr% + 3.3 (Mo & + 1/2 W%) + 30 N%

그러나, 위 PRE지수는 국부부식에 대한 고려에 한정된 것이므로 실제 응축수환경에서 전체적 부식양상은 알 수 없다. 아래의 표2는 응축수 중에 황산을 첨가하여 부식양상을 가속시켜 살펴본 무게감량 결과이다.However, since the above PRE index is limited to local corrosion considerations, the overall corrosion pattern in the actual condensate environment is unknown. Table 2 below shows the weight loss results by accelerating the corrosion pattern by adding sulfuric acid in the condensate.

pH 1, 온도 80℃ 조건하에서의 스테인레스 강 종류에 따른 무게 변화Weight change according to the type of stainless steel under pH 1 and 80 ℃ 종류Kinds 초기무게(g)Initial weight (g) 1 주1 week 6주6 Weeks 무게변화(g)Weight change (g) STS 304LSTS 304L 16.413216.4132 16.313416.3134 16.312416.3124 0.10060.1006 STS 316TiSTS 316Ti 6.83906.8390 6.83616.8361 6.83576.8357 0.00330.0033 STS 444STS 444 16.627116.6271 13.626113.6261 13.622913.6229 3.00423.0042 STS 2205STS 2205 11.934311.9343 11.397911.3979 11.930611.9306 0.00370.0037

STS 444와 STS304L을 제외한 스테인레스 강들은 극히 작은 무게변화를 보여 기름보일러에서 배출되는 고온 강산성의 응축수에서도 내식성이 좋을 것으로 판단되었다. 한편, 잠열교환기의 재질로 사용하기 위해서는 기계적 성질 및 용접성이 좋아야 하는데, STS2205의 경우 내식성이 나열된 재질 중에서 가장 우수하나 타 재질에 의해 항복강도가 약 2배 정도 커 가공하기 어렵다는 단점이 있다.Stainless steels, except for STS 444 and STS304L, showed extremely small weight changes, indicating good corrosion resistance even at high acidic acid condensate discharged from oil boilers. On the other hand, in order to use as a material of the latent heat exchanger, the mechanical properties and weldability should be good. STS2205 has the best corrosion resistance among the listed materials, but has a disadvantage in that the yield strength is about twice as large as other materials.

따라서, 응축수에 대한 내식성과 가공의 용이성 등을 고려할 때 STS316Ti 재질이 강산성의 응축수가 배출되는 기름보일러에 가장 적합하다는 결론을 얻을 수있다.Therefore, considering the corrosion resistance and easy processing of condensate, it can be concluded that STS316Ti material is most suitable for oil boilers with strong acid condensate.

이하, 본 발명의 실시예에서 설명되는 잠열교환기의 재질을 내식성과 가공성이 우수한 STS316Ti을 사용한다는 전제하에 설명한다.Hereinafter, the material of the latent heat exchanger described in the embodiment of the present invention will be described under the assumption that STS316Ti having excellent corrosion resistance and workability is used.

도 1은 본 발명의 일실시예에 따른 구성도를 나타낸 것으로서, 기름보일러의 일측에는 연료탱크로부터 공급되는 연료를 연소시키는 버너(10)가 설치되어 있으며, 이 버너(10)의 측면에 주열교환기(20)가 설치되어 있다.1 is a view showing a configuration according to an embodiment of the present invention, one side of the oil boiler is provided with a burner (10) for burning the fuel supplied from the fuel tank, the main heat exchanger on the side of the burner (10) 20 is provided.

원통형으로 된 주열교환기(20)는 내측에 연소실(21)과 연도(24)가 형성되어 있으며, 이를 둘러싸는 공간에는 난방수가 채워져 있다. 주열교환기(20)의 외측에는 저장된 난방수가 외부로 순환되기 위한 난방수입출구(23, 22)가 형성되어 있다.The cylindrical main heat exchanger 20 has a combustion chamber 21 and a flue 24 formed therein, and a space surrounding it is filled with heating water. Outside the main heat exchanger 20, heating import and exit ports 23 and 22 for circulating the stored heating water are formed.

버너(10)로 공급된 기름연료는 상기 연소실(21)에서 연소되며, 연소가스는 연도(24)를 따라 외부로 배출된다. 따라서, 연도(24)를 따라 배출되는 연소가스에 의해 주열교환기(20)에 채워진 난방수를 가열하게 된다.The oil fuel supplied to the burner 10 is burned in the combustion chamber 21, and the combustion gas is discharged to the outside along the flue 24. Therefore, the heating water filled in the main heat exchanger 20 is heated by the combustion gas discharged along the flue 24.

주열교환기(20)의 상부에는 급기예열케이스(40)가 결합되어 있다.The air supply preheating case 40 is coupled to the upper portion of the main heat exchanger 20.

급기예열케이스(40)는 도 2에 도시된 바와 같이 밑면에 두 곳의 개방구(43)가 형성된 연소가스통로(42)가 형성되어 있으며, 상부에는 공기유입구(45)로 유입되는 공기가 소통되는 공기통로(41)가 형성되어 있다.As shown in FIG. 2, the air supply preheating case 40 has a combustion gas passage 42 having two openings 43 formed on the bottom thereof, and the air flowing into the air inlet 45 communicates with the upper portion. An air passage 41 is formed.

공기통로(41)는 연소가스통로(42)를 외측으로 완전히 덮는 구조로 되어 있어서, 연소가스통로(42)를 지나는 연소가스가 외부의 찬공기와 열교환이 이루어지지 않는다. 따라서, 별도의 단열재를 쓰지 않고도 단열효과을 얻을 수 있다.The air passage 41 has a structure that completely covers the combustion gas passage 42 to the outside, so that the combustion gas passing through the combustion gas passage 42 does not heat exchange with the external cold air. Therefore, a heat insulation effect can be obtained without using a separate heat insulator.

상기 공기통로(41)는 버너(10)의 공기흡입구와 연결되어 있다.The air passage 41 is connected to the air intake port of the burner 10.

한편, 상기 개방구(43)는 각각 주열교환기(20)와 잠열교환기(30)의 연도(24, 31)와 연결되어 있어, 연소실(21)에서 연소된 연소가스는 상기 급기예열케이스(40)를 통해 잠열교환기(30)로 이동된다.On the other hand, the opening 43 is connected to the flue 24, 31 of the main heat exchanger 20 and the latent heat exchanger 30, respectively, the combustion gas burned in the combustion chamber 21 is the air supply preheating case 40 It is moved to the latent heat exchanger (30) through.

급기예열케이스(40) 아래쪽에 설치되는 잠열교환기(30)는 주열교환기(20)와 평행하게 설치되며 주열교환기(20)와 마찬가지로 연도(31)를 제외한 공간에 난방수가 채워져 있다. 또한, 잠열교환기(30)의 외측에는 저장된 난방수가 외부로 순환되기 위한 난방수입출구(32, 33)가 형성되어 있으며, 난방수출구(33)는 별도의 배관(35)에 의해 주열교환기(20)의 난방수입구(23)와 연결된다. 따라서, 난방수입구(32)를 통해 유입되는 난방수는 잠열교환기(30)와 주열교환기(20)를 차례로 이동한 후 난방수출구(22)로 배출된다.The latent heat exchanger 30 installed below the air supply preheating case 40 is installed in parallel with the main heat exchanger 20, and the heating water is filled in the space except the flue 31 like the main heat exchanger 20. In addition, the heating import and export outlets 32 and 33 are formed outside the latent heat exchanger 30 to circulate the stored heating water to the outside, and the heating export outlet 33 is a main heat exchanger 20 by a separate pipe 35. Is connected to the heating inlet (23). Therefore, the heating water flowing through the heating inlet 32 is moved to the latent heat exchanger 30 and the main heat exchanger 20 in sequence, and then discharged to the heating outlet 22.

급기예열케이스(40)와 연결된 잠열교환기(30)의 연도(31) 타단에는 응축수수집조(50)가 설치된다. 응축수수집조(50)는 위면에 유입구(52)와 배출구(53)가 형성되어 있으며, 바닥면에 배출구(51)가 형성되어 있다.The condensate collection tank 50 is installed at the other end of the year 31 of the latent heat exchanger 30 connected to the air supply preheating case 40. The condensate water collection tank 50 has an inlet 52 and an outlet 53 formed on the upper surface thereof, and an outlet 51 formed on the bottom surface thereof.

응축수수집조(50)의 바닥면은 잠열교환기(30)에서 응결되어 떨어지는 산성의 응축수가 자연스럽게 흘러서 배출구(51)로 빠져나갈 수 있도록 배출구(51)측으로 하향경사져 있다.The bottom surface of the condensate collection tank 50 is inclined downward toward the outlet 51 so that the acid condensate, which is condensed in the latent heat exchanger 30, naturally flows out and exits the outlet 51.

상기 배출구(51)에는 응축수를 중화시키는 중화처리기(60)가 설치결합된다.The outlet 51 is provided with a neutralization processor 60 for neutralizing the condensate.

아울러, 응축수수집조(50)의 일측에는 보일러의 제어장치로 전기적 신호를 송출할 수 있는 수위감지장치(55)가 설치되어 있다. 이 수위감지장치(55)는 잠열교환기(30)에서 응결되는 응축수의 양이 과다하여 중화처리기(60)에서 배출되는 속도가 떨어지면, 응축수가 더 이상 발생되지 않도록 제어장치에 전기신호를 보내 보일러를 정지시킨다.In addition, one side of the condensate collection tank 50 is provided with a water level detection device 55 for transmitting an electrical signal to the control device of the boiler. The water level detecting device 55 sends an electric signal to the control unit so that the condensate is no longer generated when the rate of the condensate condensed in the latent heat exchanger 30 is excessive and the discharge rate from the neutralization processor 60 drops. Stop it.

한편, 응축수수집조(50)의 배기구(53)에는 연소가스를 외부로 배출시키기 위한 배기관(70)이 결합된다. 배기관(70)의 상부에는 배기가스의 온도를 측정하기 위한 과열방지기(71)가 설치된다.On the other hand, the exhaust port 53 of the condensate collection tank 50 is coupled to the exhaust pipe 70 for discharging the combustion gas to the outside. An overheat protector 71 for measuring the temperature of the exhaust gas is installed above the exhaust pipe 70.

과열방지기(71)는 배기가스의 온도를 측정하여 설정온도보다 높은 경우 제어장치에 전기신호를 보내 보일러를 정지시켜 고온의 배기가스가 외부로 배출되는 것을 막는다. 이때, 설정온도는 80℃가 넘지 않도록 하는 것이 바람직하다.The overheat protector 71 measures the temperature of the exhaust gas and sends an electric signal to the control device when the temperature is higher than the set temperature to stop the boiler to prevent the high temperature exhaust gas from being discharged to the outside. At this time, the set temperature is preferably not more than 80 ℃.

도 3은 본 발명의 일실시예에 따른 사용상태도를 도시한 것으로서, 주열교환기(20)의 연소실(21)에서 연소된 연소가스는 연도(24)를 이동되어 급기예열케이스(40)로 배출된다. 급기예열케이스(40)로 이동된 연소가스는 다시 연소가스통로(42)를 통해 잠열교환기(30)로 이동된 후 응축수수집조(50)를 경유하여 배기관(70)을 통해 외부로 배출된다.3 is a diagram showing a state of use according to an embodiment of the present invention, the combustion gas burned in the combustion chamber 21 of the main heat exchanger 20 is discharged to the air supply preheating case 40 by moving the flue (24). . The combustion gas moved to the air supply preheating case 40 is again moved to the latent heat exchanger 30 through the combustion gas passage 42 and then discharged to the outside through the exhaust pipe 70 via the condensate collection tank 50.

한편, 버너(10)로 공급되는 연소용 공기는 급기예열케이스(40)의 공기통로(41)를 지나면서 연소가스통로(42)를 이동되는 고온의 연소가스에 의해 1차로 예열되므로, 버너(10)의 연소효율이 향상되는 장점이 있다.On the other hand, the combustion air supplied to the burner 10 is first preheated by the high-temperature combustion gas which moves the combustion gas passage 42 while passing through the air passage 41 of the air supply preheating case 40, so that the burner ( 10) has the advantage of improving the combustion efficiency.

난방부하(100)를 순환하는 난방수는 난방수입구(32)를 통해 잠열교환기(30)를 순환하며 배기가스에 의해 가열된 후 난방수출구(33)와 난방수입구(23)를 연결하는 배관(35)를 통해 주열교환기(20)로 이동된다. 주열교환기(20)로 이동된 난방수는 다시 연소가스에 의해 가열된 후 난방수출구(22)를 통해 난방부하(100)로 이동된다.The heating water circulating the heating load 100 circulates the latent heat exchanger 30 through the heating inlet 32 and is heated by the exhaust gas to connect the heating outlet 33 and the heating inlet 23. The pipe 35 is moved to the main heat exchanger 20. The heating water moved to the main heat exchanger 20 is again heated by the combustion gas and then moved to the heating load 100 through the heating outlet 22.

상기 주열교환기(20)와 잠열교환기(30)에는 급탕열교환기(80)가 각각 설치되어 있어 욕탕 및 부엌에서 사용될 온수가 순환되며 가열된다. 즉, 상수도를 통해 유입되는 직수는 잠열교환기(30)를 지나면서 1차로 예열되고 주열교환기(20)를 지나면서 가열되어 온수출구로 배출되는 것이다.Hot water heat exchanger 80 is installed in the main heat exchanger 20 and the latent heat exchanger 30 so that hot water to be used in a bath and a kitchen is circulated and heated. In other words, the direct water flowing through the tap water is preheated first while passing through the latent heat exchanger (30) and heated through the main heat exchanger (20) to be discharged to the hot water outlet.

급탕열교환기(80)는 연소가스에 의해 직접가열되는 것이 아니라 난방수가 순환되는 열교환기(20, 30) 내부에 설치된다. 따라서, 차가운 직수유입으로 인한 잠열교환기(30)에서의 응축수발생율을 낮출 수 있다.The hot water supply heat exchanger 80 is installed inside the heat exchangers 20 and 30 through which the heating water is circulated, not directly heated by the combustion gas. Therefore, it is possible to lower the condensate generation rate in the latent heat exchanger 30 due to cold direct water inflow.

도 4는 본 발명의 다른 실시예를 도시한 것으로서, 난방수입구(32)에는 펌프(90)가 설치됨과 아울러 난방부하(100)가 연결되어 있으며, 이 난방부하(100)의 타측은 난방수출구(22)와 연결되어 있다. 따라서, 난방부하(100)에서 배출된 저온의 난방수는 잠열교환기(30)와 주열교환기(20)를 순차적으로 지나면서 가열된 후 난방부하(100)로 되돌아온다.Figure 4 shows another embodiment of the present invention, the heating inlet 32, the pump 90 is installed and the heating load 100 is connected, the other side of the heating load 100 is the heating water It is connected to the outlet 22. Therefore, the low temperature heating water discharged from the heating load 100 is heated while passing through the latent heat exchanger 30 and the main heat exchanger 20 sequentially, and then returns to the heating load 100.

상기 펌프(90)와 난방부하(100) 사이에는 삼방밸브(95)가 설치되며. 삼방밸브(95)와 난방수출구(22)에는 별도의 급탕배관(110)이 설치결합되어 있다. 따라서, 삼방밸브(95)의 위치에 따라 난방수출구(22)에서 배출되는 난방수는 난방부하(100)를 지나지 않고 바로 난방수입구(32)로 회수된다.A three-way valve 95 is installed between the pump 90 and the heating load 100. The three-way valve 95 and the heating export port 22 is provided with a separate hot water supply pipe 110 is installed and coupled. Therefore, the heating water discharged from the heating outlet 22 according to the position of the three-way valve 95 is recovered directly to the heating inlet 32 without passing through the heating load 100.

도 5은 본 발명의 다른 실시예에 따른 사용상태도를 도시한 것으로서, 펌프(90)와 난방부하(100)사이에 설치된 삼방밸브(95)는 평상시에는 난방부하(100)와 난방수입구(32)가 소통되도록 개방된다. 따라서, 난방부하(100)를 순환하는 난방수는 펌프(90)에 의해 난방수입구(32)로 유입되어 잠열교환기(30)와 주열교환기(20)를 지나며 가열된 후 난방수출구(22)로 배출되어 난방부하(100)로 이동된다.5 is a view showing a state of use according to another embodiment of the present invention, the three-way valve 95 installed between the pump 90 and the heating load 100 is usually the heating load 100 and the heating inlet 32 ) Is open for communication. Therefore, the heating water circulating in the heating load 100 is introduced into the heating inlet 32 by the pump 90 and heated through the latent heat exchanger 30 and the main heat exchanger 20, and then the heating outlet 22. Is discharged to and is moved to the heating load 100.

욕탕 및 부엌 등에서 사용될 온수가 필요한 경우에는, 상기 삼방밸브(95)가 급탕배관(110)과 난방수입구(32)가 소통되도록 개방된다. 따라서, 주열교환기(20)와 잠열교환기(30)에서 가열된 난방수는 급탕열교환기(80)를 순환하는 직수하고만 열교환이 이루어져 빠른 시간내에 사용자가 필요로하는 온수를 만들어 낼 수 있다.When hot water to be used in baths and kitchens is required, the three-way valve 95 is opened so that the hot water supply pipe 110 and the heating inlet 32 communicate with each other. Therefore, the heating water heated in the main heat exchanger 20 and the latent heat exchanger 30 may be directly heat-exchanged only by circulating the hot water supply heat exchanger 80 to produce hot water required by the user in a short time.

한편, 급탕열교환기(80)는 주열교환기(20)외에 잠열교환기(30)에도 설치할 수 있으나, 이 경우 잠열교환기(30)의 크기가 커지므로 주열교환기(20)에만 설치할 수 있다.Meanwhile, the hot water heat exchanger 80 may be installed in the latent heat exchanger 30 in addition to the main heat exchanger 20, but in this case, the size of the latent heat exchanger 30 may be increased so that the hot water heat exchanger 80 may be installed only in the main heat exchanger 20.

이상에서 설명한 바와 같이 본 발명에 따르면, 고온의 배출가스에서 최대한 열을 획득하여 난방수와 급탕용 온수를 가열시킴으로서 기름보일러의 열효율을 최대한 높일 수 있는 효과와 이때 발생되는 응축수를 중화처리하여 수질오염을 방지하는 효과가 있다.As described above, according to the present invention, by obtaining the maximum heat from the high-temperature exhaust gas to heat the heating water and hot water for hot water supply, the effect of increasing the thermal efficiency of the oil boiler as much as possible and neutralizing the condensate generated at this time water pollution It is effective to prevent.

Claims (7)

공급된 기름을 연소시키는 버너(10), 난방수가 저장되고 난방수입출구(22, 23)가 형성되며 내측에 연소실(21)과 연도(24)가 형성된 주열교환기(20), 난방수가 저장되고 난방수입출구(32, 33)가 형성되며 내측에 연도(31)가 형성된 잠열교환기(30), 상기 주열교관기(20)와 잠열교환기(30)의 연도(24, 31)를 연결하는 급기예열케이스(40), 잠열열교환기(30)의 연도(31) 타단에 설치되고 바닥면에 배출구(51)가 형성된 응축수수집조(50), 배출구(51)에 설치되는 중화처리기(60), 응축수수집조(50)의 배기구(53)에 설치되는 배기관(70)으로 구성된 것을 특징으로 하는 콘덴싱 기름보일러.Burner 10 for burning the supplied oil, the heating water is stored, the heating water import outlet 22, 23 is formed, the main heat exchanger 20, the combustion chamber 21 and the flue 24 is formed inside, the heating water is stored and heated Import outlet 32, 33 is formed and the latent heat exchanger 30, the year 31 is formed inside, the air supply pre-heating case connecting the year (24, 31) of the main heat pipe machine 20 and the latent heat exchanger (30) 40, the condensate collection tank 50 installed at the other end of the year 31 of the latent heat exchanger 30, the outlet 51 is formed on the bottom surface, the neutralization processor 60 installed in the outlet 51, condensate collection A condensing oil boiler, characterized in that composed of an exhaust pipe (70) installed in the exhaust port (53) of the tank (50). 제 1 항에 있어서, 상기 난방수입구(32)에 펌프(90) 및 삼방밸브(95)가 설치되고 삼방밸브(95)와 난방수출구(22)가 급탕배관(110)에 의해 연결되는 것을 특징으로 하는 콘덴싱 기름보일러.The pump 90 and the three-way valve 95 is installed in the heating inlet 32 and the three-way valve 95 and the heating outlet 22 are connected by the hot water supply pipe 110. Characterized by condensing oil boiler. 제 1 항 또는 제 2 항에 있어서, 상기 잠열교환기(30)는 STS316Ti 또는 STS2205 재질로 된 것을 특징으로 하는 콘데싱 기름보일러.The condensing oil boiler according to claim 1 or 2, wherein the latent heat exchanger (30) is made of STS316Ti or STS2205. 제 3 항에 있어서, 급기예열케이스(40)에는 버너(10)로 유입되는 공기통로(41)가 형성된 것을 특징으로 하는 콘덴싱 기름보일러.4. The condensing oil boiler according to claim 3, wherein the air supply preheating case (40) has an air passage (41) flowing into the burner (10). 제 4 항에 있어서, 응축수수집조(50)에는 수위감지지기(55)가 설치된 것을 특징으로 하는 콘덴싱 기름보일러.The condensing oil boiler according to claim 4, wherein the condensate collection tank (50) is provided with a level sensor (55). 제 5 항에 있어서, 응축수수집조(50) 또는 배기관(70)의 배기가스 통로 일측에는 과열방지기(71)가 설치된 것을 특징으로 하는 콘덴싱 기름보일러.The condensing oil boiler according to claim 5, wherein an overheat protector (71) is installed at one side of the exhaust gas passage of the condensate collection tank (50) or the exhaust pipe (70). 제 6 항에 있어서, 상기 주열교환기(20)와 잠열교환기(30)에는 급탕열교환기(80)가 설치되는 것을 특징으로 하는 콘덴싱 기름보일러.7. The condensing oil boiler according to claim 6, wherein the main heat exchanger (20) and the latent heat exchanger (30) are provided with a hot water heat exchanger (80).
KR10-2003-0015323A 2003-03-12 2003-03-12 Condensing Oil Boiler KR100466783B1 (en)

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