KR100396961B1 - Mixed combustion method of hydrogen gas - Google Patents

Mixed combustion method of hydrogen gas Download PDF

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Publication number
KR100396961B1
KR100396961B1 KR1019980002628A KR19980002628A KR100396961B1 KR 100396961 B1 KR100396961 B1 KR 100396961B1 KR 1019980002628 A KR1019980002628 A KR 1019980002628A KR 19980002628 A KR19980002628 A KR 19980002628A KR 100396961 B1 KR100396961 B1 KR 100396961B1
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South Korea
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hydrogen gas
burner
ignition
fuel
tmr
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KR1019980002628A
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Korean (ko)
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KR19990066579A (en
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전경석
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두산중공업 주식회사
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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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F23C1/08—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air liquid and gaseous fuel
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/9901—Combustion process using hydrogen, hydrogen peroxide water or brown gas as fuel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

PURPOSE: A mixed combustion method of hydrogen gas is provided to use hydrogen gas generated in a process during combustion of a boiler, as fuel for combustion of the boiler. CONSTITUTION: A mixed combustion method of hydrogen gas comprises steps of turning on a dual fuel selection switch while an oil burner is in a normal igniting state(101); choosing hydrogen gas as gas fuel(102); turning on an ignition PB(Push-Button) of a hydrogen gas burner(103); verifying conditions about ignition of the hydrogen gas burner by a TMR(Triple Modular Redundancy)(104); making an exhaust valve of the hydrogen gas burner closed by the TMR if the conditions about ignition of the hydrogen gas burner are satisfied and repeating the verifying of the conditions about ignition of the hydrogen gas burner by the TMR if the conditions about ignition of the hydrogen gas burner are not satisfied(105); and verifying whether hydrogen gas is fired by the TMR or repeating steps from the first step if hydrogen gas is not fired(106).

Description

수소가스의 혼소방법How to mix hydrogen gas

본 발명은 보일러의 운전시 프로세스 내에서 부생적으로 발생하는 수소가스(H2gas)를 오일(oil)과 혼소하여 보일러의 버너연료로 사용하는 방법에 관한 것이다.The present invention relates to a method of mixing hydrogen gas (H 2 gas) generated by-product in a process during operation of a boiler with oil and using it as a burner fuel of a boiler.

산업용 보일러는 스팀(steam)(또는 스팀과 파워)을 생산하기위해 여러 가지 주변기기로 구성되어 이러한 주변기기들의 상호 호환성에 의해 운전되고, 이러한 보일러운전에서 버너운전은 매우 중요한 부분이다. 버너운전은 LBP의 COS에 의해서 remote(CCR, MCD with DCS) 또는 local(LOCAL, LBP)이 선택되면 행해지고, remote 또는 local 선택시의 버너운전모드는 동일하다.Industrial boilers consist of several peripherals to produce steam (or steam and power) and are operated by the interoperability of these peripherals. Burner operation is a very important part of the boiler operation. Burner operation is performed when remote (CCR, MCD with DCS) or local (LOCAL, LBP) is selected by the COS of the LBP. The burner operation mode at the time of remote or local selection is the same.

그리고, 이러한 보일러의 운전시에는 프로세스 내에서 부생가스가 발생되는데, 이 부생가스는 보일러에 설치된 해당 버너를 통해 보일러의 연소용 연료로 사용되고 있다.In addition, by-product gas is generated in the process during operation of the boiler, which is used as fuel for combustion of the boiler through the corresponding burner installed in the boiler.

그러나, 부생가스 중의 하나인 수소가스는 연소시 화염이 보이지않기 때문에 화염을 감지할 수 없어 보일러의 연소용 연료로 사용되지 못하고 있다. 또한, 수소가스는 폭발성이 높기때문에 단독연소는 불가능하므로 오일과 혼소하여 연소하여야 한다. 이 때 혼소되는 비율은 6(오일) : 4(수소가스)정도이다.However, hydrogen gas, which is one of the by-product gases, cannot detect a flame because the flame is not seen during combustion, and thus it is not used as a fuel for combustion of a boiler. In addition, since hydrogen gas is highly explosive, single combustion is not possible, so it must be mixed with oil and combusted. At this time, the mixing ratio is about 6 (oil): 4 (hydrogen gas).

따라서, 본 발명에서는 보일러의 연소시 프로세스 내에서 발생되는 부생가스인 수소가스를 보일러의 연소용 연료로 사용하는 방법을 제공하고자 한다.Accordingly, the present invention is to provide a method of using hydrogen gas, which is a by-product gas generated in a process during combustion of a boiler, as a fuel for combustion of a boiler.

도 1은 본 발명에 따른 수소가스를 오일과 혼소하여 버너운전의 연료로 사용하는 과정을 나타낸 흐름도.1 is a flow chart illustrating a process of using hydrogen gas as a fuel of a burner operation by mixing hydrogen gas according to the present invention.

이와 같은 목적을 달성하기 위한 본 발명의 특징은 보일러 운전시 부생적으로 발생하는 수소가스(H2gas)를 오일(oil)과 혼소하여 보일러의 버너연료로 사용하는 방법에 있어서, 오일버너를 정상적으로 점화하고 있는 상태이고, 이중연료선택스위치(dual fuel selection switch)를 '온(on)'하는 제 1단계; 가스연료로써 수소가스를 선정하는 제 2단계; 수소가스버너의 점화PB(Push-Button)을 '온'하는 제 3단계; TMR(Triple Modular Redundancy)이 수소가스버너의 점화에 대한 조건을 확인하는 제 4단계; 상기 제 4단계 수행 후 수소가스버너의 점화에 대한 조건이 맞으면 상기 TMR은 상기 수소가스버너의 배출밸브는 닫힌 상태로 하고, 안전밸브와 연료밸브는 열린 상태로 하는 제 5단계; 및 상기 제 5단계 수행 후 상기 TMR이 수소가스가 점화되었는 지를 확인하는 제 6단계로 이루어져 수소가스를 오일과 혼소하여 연료로 사용하는 방법에 있다.A feature of the present invention for achieving the above object is in the method of mixing hydrogen gas (H 2 gas) generated by-product during operation of the boiler with oil (oil) to use as burner fuel of the boiler, the oil burner normally A first step of igniting and 'on' the dual fuel selection switch; A second step of selecting hydrogen gas as a gas fuel; A third step of turning on the ignition push button (PB) of the hydrogen gas burner; A fourth step of identifying a condition for ignition of the hydrogen gas burner by a triple modular redundancy (TMR); A fifth step in which the discharge valve of the hydrogen gas burner is closed and the safety valve and the fuel valve are open when the condition for ignition of the hydrogen gas burner is met after performing the fourth step; And a sixth step in which the TMR checks whether the hydrogen gas is ignited after the fifth step is performed, and the hydrogen gas is mixed with oil and used as fuel.

첨부한 도면를 참조하여 본 발명을 구현한 바람직한 실시 예를 설명하도록 한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 수소가스를 오일과 혼소하여 버너운전의 연료로 사용하는 과정을 나타낸 흐름도이다. 도 1a는 수소가스를 오일과 혼소하여 연소시키는 과정을 나타낸 흐름도이고, 도 1b는 수소가스의 점화를 정지시키는 과정을 나타낸 흐름도이다.1 is a flowchart illustrating a process of mixing hydrogen gas with oil according to the present invention as a fuel for burner operation. 1A is a flowchart illustrating a process of mixing hydrogen gas with oil and combusting it, and FIG. 1B is a flowchart illustrating a process of stopping ignition of hydrogen gas.

먼저, 도 1a에서 수소가스를 혼소연료로 사용하고자할 때 보일러 내의 오일버너는 정상적으로 점화되고 있는 상태이고, 이중연료선택스위치(dual fuel selection switch)가 '온(on)'상태이어야 한다(101단계). 여기에서 이중연료라함은 혼소되는 오일연료와 가스연료를 일컫는다. 101단계 수행 후 사용자는 콘솔데스크(console desk)에서 가스연료로써 수소가스를 선정하고(102단계), 수소가스버너의 점화PB(Push-Button)을 '온'한다(103단계). 그러면, TMR(Triple Modular Redundancy)은 상호 연계된 신호들을 통해 수소가스버너의 점화에 대한 조건을 확인한다(104단계). 즉, TMR은 가스연료로써 수소가스가 선정되었고, 수소가스밸브가 닫혀있으며 오일버너밸브가 열려있는 지를 확인한다. 그래서, 확인결과 수소가스버너의 점화에 대한 조건이 맞지않으면 TMR은 다시 104단계를 수행하고, 맞으면 보일러 내의 수소가스버너의 배출밸브는 닫힌 상태가 되도록하고, 안전밸브와 연료밸브는 열린 상태가 되도록 한다(105단계). 105단계를 수행한 후 TMR은 수소가스가 점화되었는 지를 확인하고(106단계), 제대로 점화되지않았으면 TMR은 101단계부터 반복 수행한다. 이러한 과정을 통하여 수소가스는 점화되어 버너운전의 혼소연료로써 사용된다(107단계).First, when using hydrogen gas as a mixed fuel in Figure 1a, the oil burner in the boiler is normally ignited, the dual fuel selection switch (dual fuel selection switch) must be in the 'on' state (step 101) ). Here, double fuel refers to oil and gas fuel that is mixed. After performing step 101, the user selects hydrogen gas as a gas fuel at the console desk (step 102), and turns on the ignition PB (push-button) of the hydrogen gas burner (step 103). Then, TMR (Triple Modular Redundancy) checks the conditions for the ignition of the hydrogen gas burner through the interrelated signals (step 104). That is, TMR confirms that hydrogen gas is selected as gas fuel, the hydrogen gas valve is closed and the oil burner valve is open. Therefore, if the result of the verification is that the conditions for ignition of the hydrogen gas burner are not met, the TMR performs step 104 again. (Step 105). After performing step 105, the TMR checks whether the hydrogen gas is ignited (step 106), and if it is not properly ignited, the TMR is repeated from step 101. Through this process, hydrogen gas is ignited and used as mixed fuel of burner operation (step 107).

이렇게 수소가스를 점화하여 혼소연료로 사용하다가 수소가스버너의 점화를 정지하고자하는 경우, 사용자는 콘솔데스크에서 수소가스버너의 점화정지PB를 '온'한다(110단계). 그러면, TMR은 수소가스버너의 배출밸브를 열고, 안전밸브와 연료밸브는 닫는다(111단계). 111단계가 수행되면 수소가스의 점화는 정지되고(112단계), 또한 버너의 혼소연료점화도 정지된다(113단계).When the hydrogen gas is ignited and used as mixed fuel, and the ignition of the hydrogen gas burner is to be stopped, the user turns on the ignition stop PB of the hydrogen gas burner at the console desk (step 110). Then, the TMR opens the discharge valve of the hydrogen gas burner and closes the safety valve and the fuel valve (step 111). When step 111 is performed, the ignition of hydrogen gas is stopped (step 112), and the mixed fuel ignition of the burner is also stopped (step 113).

그리고, 이러한 보일러 운전상황은 가시적으로 MCD, DCS, LBP 등을 통해서 확인된다.In addition, such a boiler operation status is visually confirmed through MCD, DCS, LBP, and the like.

상술한 바와 같이, 본 발명에 따른 방법에 따라 보일러 운전시 프로세스 내에서 부생적으로 발생하는 수소가스를 오일과 혼소하여 보일러의 버너연료로 사용하면 보일러의 운전비용을 절감할 수 있는 잇점이 있다.As described above, according to the method according to the present invention, by using hydrogen gas by-produced in the process during boiler operation with oil and using it as burner fuel of the boiler, it is possible to reduce the operating cost of the boiler.

Claims (3)

보일러 운전시 부생적으로 발생하는 수소가스(H2gas)를 오일(oil)과 혼소하여 보일러의 버너연료로 사용하는 방법에 있어서,In the method of mixing the by-product hydrogen gas (H 2 gas) during the operation of the boiler with the oil (oil) to use as burner fuel of the boiler, 오일버너를 정상적으로 점화하고 있는 상태이고, 이중연료선택스위치(dual fuel selection switch)를 '온(on)'하는 제 1단계;A first step in which the oil burner is normally ignited and 'on' the dual fuel selection switch; 가스연료로써 수소가스를 선정하는 제 2단계;A second step of selecting hydrogen gas as a gas fuel; 수소가스버너의 점화PB(Push-Button)을 '온'하는 제 3단계;A third step of turning on the ignition push button (PB) of the hydrogen gas burner; TMR(Triple Modular Redundancy)이 수소가스버너의 점화에 대한 조건을 확인하는 제 4단계;A fourth step of identifying a condition for ignition of the hydrogen gas burner by a triple modular redundancy (TMR); 상기 제 4단계 수행 후 수소가스버너의 점화에 대한 조건이 맞으면 상기 TMR은 상기 수소가스버너의 배출밸브는 닫힌 상태로 하고, 안전밸브와 연료밸브는 열린 상태로 하거나, 상기 제 4단계 수행 후 상기 수소가스버너는 점화에 대한 조건이 맞지 않으면 상기 TMR은 상기 수소가스버너의 점화에 대한 조건의 확인과정을 반복 수행하는 제 5단계; 및If the condition for ignition of the hydrogen gas burner is met after performing the fourth step, the TMR leaves the discharge valve of the hydrogen gas burner closed, the safety valve and the fuel valve open, or after performing the fourth step. A fifth step in which the hydrogen gas burner repeatedly checks the condition of the ignition of the hydrogen gas burner if the condition for ignition is not met; And 상기 제 5단계 수행 후 상기 TMR이 수소가스가 점화되었는 지를 확인하거나, 상기 수소가스가 점화되지 않았으면 상기 제 1단계부터 반복 수행되는 제 6단계로 이루어져 수소가스를 오일과 혼소하여 연료로 사용하는 방법.After performing the fifth step, the TMR checks whether the hydrogen gas is ignited, or if the hydrogen gas is not ignited, the sixth step is repeatedly performed from the first step to mix hydrogen gas with oil and use it as fuel. Way. 제 1항에 있어서, 상기 수소가스버너의 점화에 대한 조건은 가스연료로써 수소가스가 선정되고, 수소가스밸브는 닫힌 상태이고, 오일버너밸브는 열린 상태인 것을 특징으로 하는 방법.The method as claimed in claim 1, wherein the condition for ignition of the hydrogen gas burner is selected as hydrogen gas, the hydrogen gas valve is closed, and the oil burner valve is open. 제 1항에 있어서, 상기 수소가스를 점화하여 연료로써 사용하는 중에 점화를 정지하고자하는 방법은The method of claim 1, wherein the method of stopping ignition while igniting the hydrogen gas and using the fuel as 수소가스버너의 점화정지PB를 '온'하는 제 1단계; 및A first step of turning on the ignition stop PB of the hydrogen gas burner; And 상기 제 1단계 수행 후 TMR은 상기 수소가스버너의 배출밸브를 열고, 안전밸브와 연료밸브를 닫는 제 2단계로 이루어지는 것을 특징으로 하는 방법.After performing the first step, the TMR comprises a second step of opening the discharge valve of the hydrogen gas burner and closing the safety valve and the fuel valve.
KR1019980002628A 1998-01-31 1998-01-31 Mixed combustion method of hydrogen gas KR100396961B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127502A (en) * 1976-04-17 1977-10-26 Kawasaki Heavy Ind Ltd Hot water or steam generator using hydrogen for fuel
JPS57131905A (en) * 1981-02-09 1982-08-16 Miura Kazushi Combustor
JPS63183315A (en) * 1987-01-26 1988-07-28 Mitsubishi Kasei Corp Combustion method in boiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127502A (en) * 1976-04-17 1977-10-26 Kawasaki Heavy Ind Ltd Hot water or steam generator using hydrogen for fuel
JPS57131905A (en) * 1981-02-09 1982-08-16 Miura Kazushi Combustor
JPS63183315A (en) * 1987-01-26 1988-07-28 Mitsubishi Kasei Corp Combustion method in boiler

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