KR100204530B1 - Waste heat boiler, water wall seperating type in combustion chamber - Google Patents

Waste heat boiler, water wall seperating type in combustion chamber Download PDF

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KR100204530B1
KR100204530B1 KR1019960053629A KR19960053629A KR100204530B1 KR 100204530 B1 KR100204530 B1 KR 100204530B1 KR 1019960053629 A KR1019960053629 A KR 1019960053629A KR 19960053629 A KR19960053629 A KR 19960053629A KR 100204530 B1 KR100204530 B1 KR 100204530B1
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South Korea
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combustion chamber
waste heat
heat boiler
water pipe
wall
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KR1019960053629A
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Korean (ko)
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KR19980035308A (en
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좌순원
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김형벽
현대중공업주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18—Combinations of steam boilers with other apparatus

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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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)

Abstract

본 발명은 폐목재, 폐제지 및 폐비닐을 소각하는 중소형 소각로의 폐열보일러에 있어서 소각로내에 투입된 폐기물의 연소에 의해 발생된 고온의 연소가스를 연소가스처리설비 및 통풍설비에 적합한 온도(300℃)까지 냉각시키며 또한 그열을 회수하여 프로세서에 사용하는 것으로 소각로 연소실 벽면에 수관벽을 설치하여 폐열보일러와 연결시켜 연소실의 벽면 내화재를 절검시키고 고온부식을 저하시킬수 있는 연소실 수관벽 분리독립형 폐열보일러에 관한 것으로 증기출구(1)와 급수입구(2)가 형성된 증기드럼(3)과 수드럼(5)을 폐열보일러튜브(4)로 연결된 폐열보일러(A)와 연소실내화벽(6)과 화격자(7)로 구성된 소각로 연소실(B)로 구성된 중소형 소각로에 있어서 연소실내화벽(6)의 외측에 연소실수관벽(6')을 형성하고 연소실수관벽 상부헤더(8)와 폐열보일러(A)의 증기드럼(3)을 연결관(11)으로, 연소실수관벽 하부헤더(9)와 폐열보일러(A)의 수드럼(5)을 연결관(11)으로 연결시킨 것을 특징으로 하는 연소실 수관벽 분리독립형 폐열보일러.In the waste heat boiler of a small and medium-sized incinerator which incinerates waste wood, waste paper, and waste vinyl, the present invention provides a high temperature combustion gas generated by combustion of wastes put into an incinerator (300 ° C.). It is related to the combustion chamber water pipe wall separation-independent waste heat boiler which can cut fire of the wall of the combustion chamber and reduce the high temperature corrosion by installing the water pipe wall on the wall of the incinerator combustion chamber and cooling it to the processor. A waste heat boiler (A), a combustion chamber fire wall (6), and a grate (7), in which a steam drum (3) and a water drum (5) having a steam outlet (1) and a water inlet (2) are formed by a waste heat boiler tube (4). In the small and medium-sized incinerator composed of the combustion chamber (B) consisting of a combustion chamber water pipe wall (6 ') on the outside of the combustion chamber fire wall (6), the combustion chamber water pipe wall upper header (8) and waste heat The steam drum 3 of the oiler A is connected to the connection pipe 11, and the combustion chamber water pipe wall lower header 9 and the waste drum 8 of the waste heat boiler A are connected to the connection pipe 11. Waste heat boiler separated from the combustion chamber water pipe wall.

Description

연소실 수관벽 분리독립형 폐열보일러Combustion Chamber Water Pipe Wall Separate Independent Waste Heat Boiler

본 발명은 폐목재, 폐제지 및 폐비닐을 소각하는 중소형 소각로의 폐열보일러에 있어서 소각로내에 투입된 폐기물의 연소에 의해 발생된 고온의 연소가스를 연소가스처리설비 및 통풍설비에 적합한 온도(300℃)까지 냉각시키며 또한 그열을 회수하여 프로세서에 사용하는 것으로 소각로 연소실 벽면에 수관벽을 설치하여 폐열보일러와 연결시켜 연소실의 벽면 내화재를 절감시키고 고온부식을 저하시킬수 있는 연소실 수관벽 분리독립형 폐열보일러에 관한 것이다.In the waste heat boiler of a small and medium-sized incinerator which incinerates waste wood, waste paper, and waste vinyl, the present invention provides a high temperature combustion gas generated by combustion of wastes put into an incinerator (300 ° C.). It is related to the combustion chamber water pipe wall independent independent waste heat boiler which can reduce the fire resistance of the combustion chamber wall and reduce the high temperature corrosion by installing the water pipe wall on the wall of the incinerator combustion chamber and cooling it up and using it in the processor. .

종래의 소각로는 도1의 개념도에 도시된 바와 같이 내화벽돌(26)로 둘러쌓인 소각로 연소실(B')내의 화격자 혹은 화상(27)위에서 폐기물 연소에 의해 생성된 고온의 연소가스(950-1200℃)가 덕트를 통하여 폐열보일러(A')로 유입된다.Conventional incinerators are hot combustion gases (950-1200 ° C.) produced by waste combustion on a grate or burn 27 in an incinerator combustion chamber B 'surrounded by a refractory brick 26 as shown in the conceptual diagram of FIG. ) Flows into the waste heat boiler (A ') through the duct.

폐열보일러(A')입구로 유입된 연소가스 온도는 연소실(B')에서의 방열손실,재손실 및 미연분손실 등으로 연소실(B')내의 온도(950-1200℃)보다 100-150℃ 감소하여 약 850-1000℃이며 이렇게 유입된 연소가스는 폐열보일러(A')내의 튜브(24)를 통과하면서 폐열보일러(A')내의 급수된 물을 일정압력에서 가열하여 해당압력의 포화증기를 발생하게 한다.The temperature of the combustion gas introduced into the waste heat boiler (A ') is 100-150 ° C than the temperature in the combustion room (B') (950-1200 ° C) due to heat dissipation loss, ash loss and fine dust loss in the combustion chamber (B '). It is reduced to about 850-1000 ° C, and the combustion gas introduced through the tube 24 in the waste heat boiler A 'heats the water supplied in the waste heat boiler A' at a constant pressure to produce saturated steam at that pressure. Cause it to occur.

급수펌프를 통하여 급수(22)된 물은 폐열보일러(A')의 증기드럼(23)과 수드럼(25)사이를 물의 밀도차 및 압력차를 이용한 자연순환으로서 폐열보일러(A')의 튜브(24)를 순환하면서 포화증기로 변환된다.The water supplied through the feed water pump 22 is a tube of the waste heat boiler A 'as a natural circulation between the steam drum 23 and the drum 25 of the waste heat boiler A' using water density difference and pressure difference. It is converted into saturated steam while circulating (24).

폐열보일러(A')의 입구온도가 높을수록, 출구온도가 낮을수록 증기가 다량 발생되며 폐열보일러(A')의 입구온도를 높이기 위해서는 소각로 연소실(B')에서 방열손실을 줄여야 하고 폐열보일러(A')의 출구 온도를 낮추기 위해서는 폐열보일러(A')의 크기(전열면적)를 크게 하여야 하므로 폐열보일러(A')의 전열면적을 키우는 것은 소각로의 여열회수를 목적으로 하는 폐열보일러(A')원래의 측면, 즉 경제적인 면에서 바람직하지 않으며 소각로 여열이용의 극대화시키기 위해서는 소각로 연소실(B')에서 방열손실을 극소화하며 상대적으로 연소실내의 온도를 높임으로 폐열보일러(A')의 입구온도를 상승시키는 것이 바람직한 것이다.The higher the inlet temperature of the waste heat boiler (A ') and the lower the outlet temperature, the greater the amount of steam generated.In order to increase the inlet temperature of the waste heat boiler (A'), the heat dissipation loss must be reduced in the incinerator combustion chamber (B ') and the waste heat boiler ( In order to lower the outlet temperature of A '), the size (heating area) of the waste heat boiler (A') must be increased, so increasing the heat transfer area of the waste heat boiler (A ') is a waste heat boiler (A') for the purpose of recovering the heat of the incinerator. In terms of the original, that is, economically unfavorable, in order to maximize the use of incinerator heat, the heat dissipation loss in the incinerator combustion chamber (B ') is minimized and the inlet temperature of the waste heat boiler (A') is increased by relatively increasing the temperature in the combustion chamber. It is desirable to raise.

그러나 지나친 연소실(B')내의 온도상승(1100℃이상)은 고온부식으로 인한 연소실(B')벽면의 내화재(26) 부식을 발생하게 하여 소각로에 치명적인 손상을 초래한다.However, excessive temperature rise (more than 1100 ° C.) in the combustion chamber B 'causes corrosion of the refractory material 26 on the wall of the combustion chamber B' due to high temperature corrosion, thereby causing fatal damage to the incinerator.

고온부식이 발생되는 이유는 일반적인 보일러용 연료(석탄,석유,천연가스 등)의 연소시 발생되는 연소가스와는 달리 폐목재, 폐제지 및 폐비닐등의 소각시 발생되는 연소가스의 성분중에는 부식성이 강한 가스성분(염화수소가스. 일산화탄소, 황산화물 등)이 다량 포함되어 있기 때문이다.The reason why high temperature corrosion occurs is that unlike the combustion gas generated from combustion of boiler fuel (coal, petroleum, natural gas, etc.), it is corrosive among the components of combustion gas generated during incineration such as waste wood, waste paper, and waste vinyl. This is because a large amount of this strong gas component (hydrogen chloride gas, carbon monoxide, sulfur oxide, etc.) is contained.

상기한 종래의 소각로는 소각로의 연소실과 보일러가 구조적 및 배관적으로 완전히 분리되어 있어 소각로의 연소실은 소각대상물의 소각만을 하는 설비이며 연소실에서 발생한 고온의 연소가스는 폐열보일러에서만 그 열을 회수하게 되어 있어 소각후 여열을 이용하는 측면에서는 연소실에서 발생되는 열량은 회수가 불가능한 문제점이 있었다.In the conventional incinerator, the combustion chamber and the boiler of the incinerator are completely separated from each other structurally and plumbing, so that the combustion chamber of the incinerator is only an incinerator for incineration, and the high temperature combustion gas generated in the combustion chamber recovers its heat only from the waste heat boiler. There was a problem that the amount of heat generated in the combustion chamber is not recoverable in terms of using the heat after incineration.

따라서 본 발명은 상기한 종래의 문제점을 개선하기 위해 목적으로 안출된 것으로 폐열보일러에서 여열회수의 결과로 발생하는 증기는 소각대상물의 발열량 및 소각량과 관련되어 있지만 보다 더 많은 증기를 회수하기 위해서는 연소실 및 덕트에서의 열손실을 절감시키는 것이 가장 중요하며 열손실 절감을 위해서는 연소실에 고온연소가스의 열회수 설비를 설치하여야 하며 그리고 열손실을 줄이기 위한 구조로 형성되어야 한다.Therefore, the present invention has been made in order to improve the above-mentioned problems, and the steam generated as a result of the heat recovery in the waste heat boiler is related to the calorific value and the incineration amount of the incineration target, but in order to recover more steam, the combustion chamber and It is most important to reduce the heat loss in the duct, and to reduce the heat loss, a heat recovery facility for the hot combustion gas should be installed in the combustion chamber, and it should be formed in a structure to reduce the heat loss.

또한 연소실 벽면에 사용되는 내화재의 양을 줄이고 고온부식으로 인한 내화재의 마모를 줄일수 있는 연소실 수관벽 분리독립형 폐열보일러를 제공하기 위한 것이다.In addition, to provide a combustion chamber water pipe wall separate independent waste heat boiler that can reduce the amount of refractory material used in the combustion chamber wall and reduce the wear of the refractory material due to high temperature corrosion.

제1도는 종래의 폐열보일러의 설치 개념도.1 is a conceptual diagram of installation of a conventional waste heat boiler.

제2도는 본 발명의 설치 개념도.2 is a conceptual diagram of installation of the present invention.

제3도는 본 발명이 적용된 소각로의 전체 구조도.3 is an overall structural diagram of an incinerator to which the present invention is applied.

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

1 : 증기 출구 2 : 급수입구1: steam outlet 2: water inlet

3 : 증기드럼 4 : 폐열보일러 튜브3: steam drum 4: waste heat boiler tube

5 : 수드럼 6 : 연소실 내화벽5: Sudrum 6: Combustion chamber fire wall

6' : 연소실 수관벽 7 : 화격자6 ': combustion chamber water pipe wall 7: grate

8 : 연소실 수관벽 상부헤더 9 : 연소실 수관벽 하부헤더8: combustion chamber water pipe wall upper header 9: combustion chamber water pipe wall lower header

10, 11 : 연결관 A : 폐열보일러10, 11 connector A: waste heat boiler

B : 소각로 연소실B: Incinerator Combustion Chamber

이하 발명의 요지를 첨부된 도면에 연계시켜 그 구성과 작용 효과를 상세히 설명하면 다음과 같다.Hereinafter, the configuration and effect of the present invention will be described in detail with reference to the accompanying drawings.

도2는 본 발명의 설치 개념도를 나타낸 것이다Figure 2 shows the installation conceptual diagram of the present invention.

증기출구(1)와 급수입구(2)가 형성된 증기드럼(3)과 수드럼(5)을 폐열보일러튜브(4)로 연결된 폐열보일러(A)와 연소실내화벽(6)과 화격자(7)로 구성된 소각로 연소실(B)로 구성된 중소형 소각로에 있어서 연소실내화벽(6)의 외측에 연소실수관벽(6')을 형성하고 연소실수관벽 상부헤더(8)와 폐열보일러(A)의 증기드럼(3)을 연결관(11)으로, 연소실 수관벽 하부헤더(9)와 폐열보일러(A)의 수드럼(5)을 연결관(11)으로 연결시킨 구조이다.A waste heat boiler (A), a combustion chamber fire wall (6), and a grate (7), in which a steam drum (3) and a water drum (5) having a steam outlet (1) and a water inlet (2) are formed by a waste heat boiler tube (4). In the small and medium-sized incinerator composed of the combustion chamber (B) consisting of a combustion chamber water pipe wall (6 ') on the outside of the combustion chamber fire wall (6) and the steam drum of the upper chamber (8) of the combustion chamber water pipe wall and the waste heat boiler (A) 3) is connected to the connecting pipe 11, the lower header 9 of the combustion chamber water pipe wall and the drum (5) of the waste heat boiler (A) is connected to the connecting pipe (11).

이와같이 된 본 발명은 연소실(B)의 구성은 소각로 연소실의 내측 연소실내화벽(6)이 고온부인 경우와 소각대상물이 접촉하는 부위의 수관벽(6')부식을 방지하기 위하여 내화벽돌 및 내화 캐스타블로 덮여있고 연소실(B)내에서 상대적으로 온도가 낮은 연소실 벽면상부 및 연소실 지붕부위는 내화재 및 내화 캐스타블이 없는 수관벽(6')으로 형성되어 종래의 연소실(B')에서는 전혀 여열을 회수 못한 것과 비교하여 획기적인 양의 연소가스 여열을 회수할 수 있도록 하였으며 내화재 설치시공에도 종래보다 적은 양의 내화재를 사용하므로 값비싼 내화재의 비용과 설치 및 시공비를 절감시킬수 있는 것이다.In the present invention as described above, the combustion chamber (B) is composed of a firebrick and a fire-resistant casing to prevent corrosion of the water pipe wall (6 ') in the case where the inner combustion chamber refractory wall (6) of the incinerator combustion chamber is a high temperature part and the area where the incineration object contacts. The upper part of the combustion chamber wall and the combustion chamber roof which are covered with tablo and relatively low temperature in the combustion chamber B are formed of a water pipe wall 6 'free of refractory material and refractory castable, so that no heat is generated in the conventional combustion chamber B'. Compared with the failure to recover, it is possible to recover a significant amount of combustion gas filtrate, and to install a refractory material, the use of less refractory material than in the prior art can reduce the cost of expensive refractory material and installation and construction costs.

그리고 폐열보일러(A)와 연소실 수관벽(6')사이의 물과 증기의 흐름은 폐열보일러(A)의 하부 수드럼(5)과 연소실 수관벽 하부헤더(9), 상부 증기드럼(3)과 연소실 수관벽 상부헤더(8)로 각각 연결관(10)(11)이 연결되어 있어 원활한 물순환이 되도록 하였으며 특히 2개의 드럼으로 구성된 폐열보일러(A)의 물 순환은 그 자체 만으로도 자연순환과 연소실 수관벽(6')과의 자연순환이 복합적으로 이루어져 종래의 동일크기의 폐열보일러와 대비하여 동일 물 순환일 경우 연소실 수관벽(6')의 물 및 증기량 만큼 여유가 있는 설비가 되어 불규칙적인 소각대상물의 발열량 및 소각량에 따른 순간적인 증기드럼 수위 상승, 하강에 잘 대처할수 있도록 되어 있으며 연소실 수관벽의 물순환은 그 자체로 따로 분리하여 강제순환을 시킬수도 있으며 자연순환과 강제 순환을 같이 할수도 있는 것이다.In addition, the flow of water and steam between the waste heat boiler (A) and the combustion chamber water pipe wall (6 ') is carried out by the lower drum (5) and the combustion chamber water pipe wall (9), the upper steam drum (3) of the waste heat boiler (A). The connecting pipes 10 and 11 are connected to the upper header 8 of the combustion chamber water pipe wall, respectively, so that a smooth water circulation is achieved. In particular, the water circulation of the waste heat boiler A consisting of two drums is a natural circulation and itself. The natural circulation with the combustion chamber water pipe wall 6 'is complex, so that the same water circulation as the conventional waste heat boiler of the same size makes the equipment as much as water and steam in the combustion chamber water pipe wall 6' is irregular. It is able to cope well with the instantaneous rise and fall of steam drum level according to the calorific value and incineration amount of the incineration object, and the water circulation of the water pipe wall of the combustion chamber can be separated by itself and forced circulation. You can do it together.

그러므로 본 발명은 소각로 연소실에서 방열손실을 저하시켜 여열이용을 극대화 시켰으며 고온부식으로 인한 내화재의 마모 및 부식을 최소화하여 소각로의 유지보수비용을 절감시킬수 있으며 고가의 내화재 설치시 전체적인 내화재의 양을 줄임으로서 공사비를 절감시킬수 있는 경제적인 효과가 있는 것이다.Therefore, the present invention maximizes the use of heat by lowering the heat dissipation loss in the incinerator combustion chamber, and minimizes the wear and corrosion of the refractory material due to high temperature corrosion, thereby reducing the maintenance cost of the incinerator and reducing the total amount of the refractory material when installing the expensive fireproof material. As a result, there is an economic effect to reduce construction costs.

Claims (1)

증기출구(1)와 급수입구(2)가 형성된 증기드럼(3)과 수드럼(5)을 폐열보일러튜브(4)로 연결된 폐열보일러(A)와 연소실내화벽(6)과 화격자(7)로 구성된 소각로 연소실(B)로 구성된 중소형 소각로에 있어서 연소실내화벽(6)의 외측에 연소실수관벽(6')을 형성하고 연소실수관벽 상부헤더(8)와 폐열보일러(A)의 증기드럼(3)을 연결관(11)으로, 연소실 수관벽 하부헤더(9)와 폐열보일러(A)의 수드럼(5)을 연결관(11)으로 연결시킨 것을 특징으로 하는 연소실 수관벽 분리독립형 폐열보일러.A waste heat boiler (A), a combustion chamber fire wall (6), and a grate (7), in which a steam drum (3) and a water drum (5) having a steam outlet (1) and a water inlet (2) are formed by a waste heat boiler tube (4). In the small and medium-sized incinerator composed of the combustion chamber (B) consisting of a combustion chamber water pipe wall (6 ') on the outside of the combustion chamber fire wall (6) and the steam drum of the upper chamber (8) of the combustion chamber water pipe wall and the waste heat boiler (A) 3) the combustion chamber water pipe wall separated independent waste heat boiler, characterized in that the combustion chamber water pipe wall lower header (9) and the drum (5) of the waste heat boiler (A) is connected to the connecting pipe (11). .
KR1019960053629A 1996-11-13 1996-11-13 Waste heat boiler, water wall seperating type in combustion chamber KR100204530B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673293A (en) * 2013-12-18 2014-03-26 北镇市青岩节能设备制造有限公司 Superconducting heat-transfer efficient boiler furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673293A (en) * 2013-12-18 2014-03-26 北镇市青岩节能设备制造有限公司 Superconducting heat-transfer efficient boiler furnace

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