KR20130001432A - Two drum type marine boiler - Google Patents

Two drum type marine boiler Download PDF

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Publication number
KR20130001432A
KR20130001432A KR1020110062165A KR20110062165A KR20130001432A KR 20130001432 A KR20130001432 A KR 20130001432A KR 1020110062165 A KR1020110062165 A KR 1020110062165A KR 20110062165 A KR20110062165 A KR 20110062165A KR 20130001432 A KR20130001432 A KR 20130001432A
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South Korea
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drum
water
steam
heat
marine boiler
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KR1020110062165A
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Korean (ko)
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KR101383859B1 (en
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시종민
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강림중공업 주식회사
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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
    • F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/101—Tubes having fins or ribs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/12—Forms of water tubes, e.g. of varying cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B5/00—Steam boilers of drum type, i.e. without internal furnace or fire tubes, the boiler body being contacted externally by flue gas
    • F22B5/04—Component parts thereof; Accessories therefor

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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)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE: A two-drum type boiler for a ship is provided to improve internal heat exchanging performance and reduce a whole volume by installing a down comer outside of a body. CONSTITUTION: A two-drum type boiler for a ship comprises a body(1), a water drum(3), a steam drum(4), and a burner(2). A plurality of bank tubes(5) is embedded in the body. The water drum is arranged in the lower part of the body and stores water. The steam drum is arranged in the upper part of the body and steam generated from the water flows into the steam drum. The burner unit supplies flames to the inside of the body. A plurality of heat-radiating pins(6) is formed in the bank tubes. The water of the water drum is evaporated by heat provided by the flames of the burner unit and the steam is sent to the steam drum through the heat radiating pines. A heat exchanging area of an exterior surface is enlarged by the radiating pins.

Description

2-드럼 타입의 선박용 보일러 {Two drum type marine boiler}Two drum type marine boiler

본 발명은 선박용 보일러에 관한 것으로, 더욱 상세하게는 증기의 발생을 위한 보일러 내부의 열교환 효율이 증대된 2-드럼 타입의 선박용 보일러에 관한 것이다.
The present invention relates to a marine boiler, and more particularly to a two-drum type marine boiler with increased heat exchange efficiency inside the boiler for the generation of steam.

일반적으로 보일러(boiler)는 연료의 연소열을 물 등에 전달하여 온도와 압력이 높은 증기를 발생시키는 장치로서, 화력발전소나 선박 등의 증기기관, 각종 공장의 작업용 장치 및 난방용 장치 등에 증기를 공급하는데 사용한다.In general, a boiler is a device that generates steam with high temperature and pressure by transferring the heat of combustion of fuel to water, etc. do.

이러한 보일러는 그 구조상의 종류에 따라 여러 종류가 있으며, 그 중 선박용 보일러는 통상 증기를 생산하여 선박에서 사용되는 터빈을 구동시키거나 또는 터빈 및 보일러를 구동하기 위한 기름탱크를 미리 가열하여 에너지를 절약할 수 있도록 하는 역할을 한다.There are many kinds of such boilers according to their structural type. Among them, marine boilers usually produce steam to drive turbines used in ships or preheat the oil tanks for driving turbines and boilers to save energy. It does what it does.

종래 선박용 보일러는 내부에 소정의 공간부를 갖는 밀폐된 몸체부와, 상기 몸체부의 측면에 설치된 버너부를 포함하여 구성되고, 상기 버너부에서 제공되는 화염에 의해 발생된 고열의 연소가스로 물을 증발시켜 증기를 생성하며, 이때 연소가스와 물 간에 열전달은 연소가스가 튜브를 통과하면서 튜브 외측에 채워진 물과 열교환하여 이루어진다.Conventional marine boilers include a closed body portion having a predetermined space therein and a burner portion provided on the side of the body portion, and the water is evaporated by the combustion gas of high heat generated by the flame provided by the burner portion. Steam is generated, where heat transfer between the combustion gas and the water is accomplished by heat exchange with the water filled outside the tube as the combustion gas passes through the tube.

그런데, 이러한 종래 선박용 보일러는 연소가스와 물의 열교환시 통상적인 구조의 튜브를 사용함으로 인하여 열전달 효율이 저하되는 문제점이 있다.However, the conventional marine boiler has a problem that the heat transfer efficiency is lowered by using a tube having a conventional structure when heat exchange of the combustion gas and water.

따라서 종래 선박용 보일러는 연소가스와 물의 열교환시 열전달 효율을 높이기 위해 보다 많은 튜브를 필요로 하게 되고, 또한 강수관(downcomer)이 몸체부의 내부에 설치되어짐으로 인해 보일러의 부피가 커지게 되며, 그에 따른 설치 비용이 증가하게 되는 문제점이 초래된다.
Therefore, the conventional marine boiler needs more tubes to increase the heat transfer efficiency during the heat exchange of the combustion gas and water, and also because the downcomer is installed inside the body portion, the volume of the boiler increases. The problem is that the installation cost is increased.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 보일러 내의 뱅크튜브를 열교환 성능을 향상시킨 구조로 구성함으로써, 몸체부 내에 설치되는 뱅크튜브의 개수를 감소시켜 부피를 축소함과 동시에 보일러 내부의 열교환 성능을 향상시킨 2-드럼 타입의 선박용 보일러를 제공하는데 그 목적이 있다.
The present invention has been made to solve the above problems, by configuring the bank tube in the boiler to improve the heat exchange performance, by reducing the number of bank tubes installed in the body portion to reduce the volume and at the same time inside the boiler The purpose is to provide a two-drum type marine boiler with improved heat exchange performance.

상기한 목적을 달성하기 위해 본 발명은 다수의 뱅크튜브가 내설되어 있는 몸체부와; 상기 몸체부의 하부에 구비되고, 물이 저장되어 있는 워터드럼과; 상기 몸체부의 상부에 구비되고, 상기 물로부터 생성된 증기가 유입되는 스팀드럼과; 상기 몸체부의 내부에 화염을 공급하기 위한 버너부;를 포함하며, 상기 뱅크튜브는 버너부의 화염에 의해 공급된 열기에 의해 상기 워터드럼의 물을 증발시켜 상기 스팀드럼으로 연통시키고, 또한 외표면에 열교환 면적을 넓히기 위한 다수의 방열핀이 돌출 형성되어서 열교환 성능을 증대하도록 한 것을 특징으로 하는 2-드럼 타입의 선박용 보일러를 제공한다.In order to achieve the above object, the present invention includes a body portion in which a plurality of bank tubes are built; A water drum provided below the body part and storing water; A steam drum provided at an upper portion of the body part and into which steam generated from the water is introduced; And a burner part for supplying a flame to the inside of the body part, wherein the bank tube communicates with the steam drum by evaporating the water in the water drum by heat supplied by the flame of the burner part. Provided is a two-drum type marine boiler, characterized in that a plurality of heat dissipation fins are formed to protrude to increase the heat exchange area to increase the heat exchange performance.

본 발명에서, 상기 방열핀은 뱅크튜브의 외표면을 따라 방사형으로 돌출 형성되며, 연소가스의 진행방향으로 벤딩된 것을 특징으로 한다.In the present invention, the heat radiating fins are formed radially protruding along the outer surface of the bank tube, it is characterized in that the bent in the direction of the combustion gas.

또한, 본 발명은 상기 스팀드럼에서 응축된 물을 워터드럼으로 회수하기 위한 강수관이 상기 몸체부의 외부에 배열 설치된 것을 특징으로 한다.
In addition, the present invention is characterized in that the precipitation pipe for recovering the water condensed in the steam drum to the water drum is arranged outside the body portion.

본 발명에 따른 2-드럼 타입의 선박용 보일러는 기존 선박용 보일러에 비해 몸체부 내 뱅크튜브의 개수를 감소시켜 부피를 축소시킬 수 있음과 동시에 보일러 내부의 열교환 성능을 기존 보일러와 동등한 수준으로 유지 내지는 향상시킬 수 있고, 또한 강수관이 몸체부의 외부에 배열 설치되어 있으므로 보일러의 전체 부피가 줄어들게 하는 효과가 있다.
The 2-drum type marine boiler according to the present invention can reduce the volume by reducing the number of bank tubes in the body compared to the existing marine boiler and at the same time maintain or improve the heat exchange performance inside the boiler at the same level as the existing boiler. In addition, since the precipitation pipe is arranged outside the body portion, there is an effect of reducing the overall volume of the boiler.

도 1은 본 발명의 일실시예에 따른 2-드럼 타입의 선박용 보일러를 도시한 도면.
도 2는 도 1의 A-A에 따른 단면도.1 is a view showing a two-drum type marine boiler according to an embodiment of the present invention.
2 is a cross-sectional view taken along AA of FIG. 1.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

첨부된 도 1에 도시된 바와 같이, 본 발명의 일실시예에 따른 2-드럼 타입의 선박용 보일러는 내부에 공간이 마련되어 있는 몸체부(1)와, 상기 몸체부(1)의 내부에 화염을 제공하기 위한 버너부(2)와, 상기 몸체부(1)의 상부와 하부에 각각 구성되는 스팀드럼(4)과 워터드럼(3) 등을 포함하여 구성된다.As shown in FIG. 1, the two-drum type marine boiler according to an embodiment of the present invention has a body portion 1 having a space therein and a flame inside the body portion 1. It comprises a burner portion 2 for providing, and a steam drum 4 and a water drum 3, which are respectively formed on the upper and lower portions of the body portion 1, and the like.

상기 몸체부(1)는 일정 체적의 공간을 갖는 구성요소로서, 이 몸체부(1)를 상하로 가로지르는 디비젼 월 튜브(division wall tube)(7)에 의해 좌우로 구분되어 각각 증발부(9)와 연소실(8)이 형성된다.The body portion 1 is a component having a space of a predetermined volume, and is divided into left and right sides by a division wall tube 7 crossing the body portion 1 up and down, respectively. And the combustion chamber 8 are formed.

상기 연소실(8) 상부의 몸체부(1) 외벽면에서 버너부(2)가 설치되어 있고, 상기 연소실(8)에는 버너부(2)로부터 공급된 오일연료에 의해 고열의 연소가스가 형성된다.The burner part 2 is provided in the outer wall surface of the body part 1 of the upper part of the combustion chamber 8, and the combustion chamber of high heat is formed by the oil fuel supplied from the burner part 2 in the combustion chamber 8 .

상기 증발부(9)는 디비젼 월 튜브(7)를 사이에 두고 연소실(8)과 인접해 있으므로 인해 상기 디비젼 월 튜브(7) 사이로 유입된 연소가스의 고열에 의해 승온된다.Since the evaporator 9 is adjacent to the combustion chamber 8 with the division wall tube 7 interposed therebetween, the evaporator 9 is heated by the high heat of the combustion gas introduced between the division wall tube 7.

상기 몸체부(1)의 증발부(9)에는 다수의 뱅크튜브(bank tube)(5)가 내설되고, 상기 뱅크튜브(5)는 워터드럼(3)과 스팀드럼(4)을 연통시켜 워터드럼(3)에서 유입된 물을 증기화하는 역할을 한다.A plurality of bank tubes 5 are installed in the evaporator 9 of the body 1, and the bank tubes 5 communicate the water drum 3 and the steam drum 4 with water. It serves to vaporize the water introduced from the drum (3).

상기 뱅크튜브(5)는 연소실(8)에서 생성된 고열의 연소가스에 의해 가열되어 내부에 수용된 워터드럼(3)의 물을 증기화하고, 이에 따라 생성된 증기는 뱅크튜브(5) 내부 압력에 의해 상승되어 상부의 스팀드럼(4)으로 유입된다.The bank tube 5 is heated by the high-temperature combustion gas generated in the combustion chamber 8 to vaporize the water in the water drum 3 contained therein, and the generated steam is pressured inside the bank tube 5. It is raised by the flow into the upper steam drum (4).

즉, 상기 뱅크튜브(5)는 내부에 수용된 물과 외부의 열원인 연소가스 간의 열교환에 의해 워터드럼(3)의 물을 가열하여 증기화하게 된다.That is, the bank tube 5 heats and vaporizes the water in the water drum 3 by heat exchange between the water contained therein and the combustion gas which is an external heat source.

상기 워터드럼(3)은 증기 생성을 위한 물이 저장되어 있는 구성요소로 몸체부(1)의 하부에 구비되고, 상기 스팀드럼(4)은 워터드럼(3)의 물로부터 생성된 증기를 수용하기 위한 구성요소로 몸체부(1)의 상부에 구비되어 있다.The water drum 3 is a component in which water for steam generation is stored, which is provided at the lower part of the body 1, and the steam drum 4 receives steam generated from the water of the water drum 3. It is provided on the upper portion of the body portion 1 as a component for.

또한, 상기 뱅크튜브(5)는 외표면에 열교환 면적을 넓히기 위한 다수의 방열핀(6)이 돌출 형성되어 있어서, 내부에 수용된 물과 버너부(2)로부터 공급된 화염에 의해 생성된 연소열 간의 열교환 성능을 증대시키게 된다.In addition, the bank tube 5 has a plurality of heat dissipation fins 6 protrudingly formed on the outer surface of the bank tube 5 to extend the heat exchange area. It will increase performance.

상기 방열핀(6)은 뱅크튜브(5) 내에 유입된 물의 저열을 방출하고 연소실(8)에서 전달된 연소가스의 고열을 흡수하여 뱅크튜브(5)의 열교환 성능을 향상시킬 수 있다.The heat dissipation fins 6 may improve the heat exchange performance of the bank tube 5 by releasing low heat of water introduced into the bank tube 5 and absorbing the high heat of the combustion gas delivered from the combustion chamber 8.

또한, 상기 방열핀(6)은 뱅크튜브(5)의 외표면을 따라 방사형으로 돌출 형성될 수 있고, 증발부(9)와 연소실(8) 사이에 배치되어 있는 디비젼 월 튜브(7)들 사이로 유입되는 연소가스의 진행방향으로 벤딩되게 함으로써 열접촉 면적을 최대화하도록 구비될 수 있다.In addition, the heat dissipation fins 6 may protrude radially along the outer surface of the bank tube 5, and flow into the division wall tubes 7 disposed between the evaporator 9 and the combustion chamber 8. It may be provided to maximize the thermal contact area by bending in the traveling direction of the combustion gas.

상기 스팀드럼(4)은 뱅크튜브(5)에서 증발된 증기가 계속해서 유입됨에 따라 내부의 증기가 응축될 수 있는데, 이렇게 스팀드럼(4)에서 응축된 물을 다시 워터드럼(3)으로 유동시켜 회수하기 위한 강수관(10)이 상기 몸체부(1)의 외부에 배치되어 구성된다.The steam drum 4 may condense steam as the vapor evaporated from the bank tube 5 continues to flow, and thus the water condensed in the steam drum 4 flows back to the water drum 3. Precipitation pipe 10 for recovering is configured to be disposed outside the body portion (1).

상기 강수관(10)은 스팀드럼(4)과 워터드럼(3)을 연통시키는 구조로 설치되고, 스팀드럼(4)에서 응축된 물이 자중에 의해 유동되어 워터드럼(3)으로 유입되도록 첨부된 도 1에 도시된 바와 같이 상기 스팀드럼(4)에 연결된 부분이 비스듬하게 기울어진 ㄷ자형 파이프로 구성된다.The precipitation pipe 10 is installed in a structure in which the steam drum 4 and the water drum 3 communicate with each other, and the water condensed in the steam drum 4 is attached to the water drum 3 by flowing by its own weight. As shown in FIG. 1, the part connected to the steam drum 4 is composed of an obliquely inclined U-shaped pipe.

그리고, 본 발명에 따른 선박용 보일러는 이를 구성하고 있는 구성요소 중 압력하중이 가장 큰 스팀드럼(4)과 워터드럼(3)을 타원형상의 단면을 갖는 구조로 구성함에 의해 하중을 분산시켜 압력하중이 집중되는 부분을 제거하여 내구성이 증대되는 효과를 얻을 수 있다. In addition, the marine boiler according to the present invention distributes the load by configuring the steam drum 4 and the water drum 3 having the largest pressure load among the components constituting the same in a structure having an elliptical cross section. By removing the concentrated part, the durability can be increased.

이와 같이 구성된 본 발명의 2-드럼 타입의 선박용 보일러에서 증기가 생성되는 일련의 작동 과정을 설명하면 다음과 같다.Referring to the series of operating processes for generating steam in the two-drum type marine boiler of the present invention configured as described above are as follows.

먼저 버너부(2)에서 공급된 오일연료의 연소에 의해 발생된 연소실(8)의 연소가스의 연소열이 뱅크튜브(5) 내부의 물에 전달되어 온도와 압력이 높은 증기를 발생시키고, 발생된 고온 고압의 증기는 그 압력에 의해 스팀드럼(4)으로 유입된다.First, the heat of combustion of the combustion gas of the combustion chamber 8 generated by the combustion of the oil fuel supplied from the burner unit 2 is transferred to the water inside the bank tube 5 to generate steam having a high temperature and pressure. The high temperature and high pressure steam enters the steam drum 4 by the pressure.

즉, 상기 뱅크튜브(5)는 워터드럼(3)으로부터 유입된 물을 연소실(8)에서 연소된 버너부(2)의 화염에 의한 연소가스의 열기에 의해 증기화시키고, 이렇게 생성된 증기는 상승되어 스팀드럼(4)으로 유입된 후 스팀드럼(4)의 상부에 설치된 증기 토출관(12)을 통해 증기 사용처로 공급된다.That is, the bank tube 5 vaporizes the water introduced from the water drum 3 by the heat of the combustion gas by the flame of the burner part 2 burned in the combustion chamber 8, and the steam thus generated is Ascends into the steam drum 4 and is supplied to the steam use place through the steam discharge pipe 12 installed on the steam drum 4.

그리고, 연소가스는 연소실(8)에서부터 증발부(9)를 경유하여 뱅크튜브(5)의 물을 가열한 후 몸체부(1) 상단에 구비되어 있는 배기덕트(11)를 통해 외부로 배출된다.
The combustion gas is heated from the combustion chamber 8 via the evaporator 9 to heat the water in the bank tube 5, and then discharged to the outside through the exhaust duct 11 provided at the upper end of the body 1. .

1 : 몸체부 2 : 버너부
3 : 워터드럼 4 : 스팀드럼
5 : 뱅크튜브 6 : 방열핀
7 : 디비젼 월 튜브 8 : 연소실
9 : 증발부 10 : 강수관
11 : 배기덕트 12 : 증기 토출관1: Body 2: Burner
3: water drum 4: steam drum
5: bank tube 6: heat dissipation fin
7: division wall tube 8: combustion chamber
9: evaporation unit 10: precipitation pipe
11: exhaust duct 12: steam discharge tube

Claims (4)

다수의 뱅크튜브(5)가 내설되어 있는 몸체부(1)와;
상기 몸체부(1)의 하부에 구비되고, 물이 저장되어 있는 워터드럼(3)과;
상기 몸체부(1)의 상부에 구비되고, 상기 물로부터 생성된 증기가 유입되는 스팀드럼(4)과;
상기 몸체부(1)의 내부에 화염을 공급하기 위한 버너부(2);를 포함하며, 상기 뱅크튜브(5)는 버너부의 화염에 의해 공급된 열기에 의해 상기 워터드럼(3)의 물을 증발시켜 상기 스팀드럼(4)으로 보내는 경로이면서 그 외표면에 열교환 면적을 넓히기 위한 다수의 방열핀(6)이 돌출 형성되어서 열교환 성능을 증대하도록 한 것을 특징으로 하는 2-드럼 타입의 선박용 보일러.
A body 1 having a plurality of bank tubes 5 embedded therein;
A water drum (3) provided at a lower portion of the body portion (1) and storing water;
A steam drum (4) provided at an upper portion of the body portion (1) and into which steam generated from the water is introduced;
And a burner part 2 for supplying a flame to the inside of the body part 1, wherein the bank tube 5 receives water from the water drum 3 by heat supplied by the flame of the burner part. The two-drum type marine boiler characterized in that the evaporation path is sent to the steam drum (4) and a plurality of heat dissipation fins (6) are formed to protrude to extend the heat exchange area on the outer surface thereof to increase the heat exchange performance.
청구항 1에 있어서,
상기 방열핀(6)은 뱅크튜브(5)의 외표면을 따라 방사형으로 돌출 형성되며, 연소가스의 진행방향으로 벤딩되어 있는 것을 특징으로 하는 2-드럼 타입의 선박용 보일러.
The method according to claim 1,
The heat dissipation fin (6) is radially protruded along the outer surface of the bank tube (5), a two-drum type marine boiler, characterized in that the bent in the direction of the combustion gas.
청구항 1에 있어서,
상기 스팀드럼(4)에서 응축된 물을 워터드럼(3)으로 재순환시키기 위한 강수관(10)이 상기 몸체부(1)의 외부에 배열 설치된 것을 특징으로 하는 2-드럼 타입의 선박용 보일러.
The method according to claim 1,
A two-drum type marine boiler, characterized in that the water pipe (10) for recycling the water condensed in the steam drum (4) is arranged outside the body portion (1).
청구항 1에 있어서,
상기 스팀드럼(4)과 워터드럼(3)은 타원형상의 단면을 갖는 구조로 형성된 것을 특징으로 하는 2-드럼 타입의 선박용 보일러.The method according to claim 1,
The steam drum (4) and the water drum (3) is a two-drum type marine boiler, characterized in that formed in a structure having an elliptical cross section.
KR1020110062165A 2011-06-27 2011-06-27 Two drum type marine boiler KR101383859B1 (en)

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WO2020170622A1 (en) * 2019-02-22 2020-08-27 三菱重工マリンマシナリ株式会社 Boiler

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JPH0613921B2 (en) * 1986-01-31 1994-02-23 三浦工業株式会社 Heat transfer surface structure of multi-tube once-through boiler
KR20050088616A (en) * 2004-03-02 2005-09-07 주영일 Rapid hot water and heating water boiler
KR100648965B1 (en) * 2005-02-02 2006-12-22 강림중공업 주식회사 Marine boiler

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020170622A1 (en) * 2019-02-22 2020-08-27 三菱重工マリンマシナリ株式会社 Boiler
JP2020134069A (en) * 2019-02-22 2020-08-31 三菱重工マリンマシナリ株式会社 boiler

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