KR100785245B1 - Management method and apparatus of sending pipe line in cogeneration equipment - Google Patents

Management method and apparatus of sending pipe line in cogeneration equipment Download PDF

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KR100785245B1
KR100785245B1 KR1020060103411A KR20060103411A KR100785245B1 KR 100785245 B1 KR100785245 B1 KR 100785245B1 KR 1020060103411 A KR1020060103411 A KR 1020060103411A KR 20060103411 A KR20060103411 A KR 20060103411A KR 100785245 B1 KR100785245 B1 KR 100785245B1
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South Korea
Prior art keywords
product gas
pressure steam
low pressure
pipe
injection
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KR1020060103411A
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Korean (ko)
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정충래
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주식회사 포스코
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A method and an apparatus for managing a by-product transferring pipe of a cogeneration facility are provided to remove tar and by-product deposited on the by-product transferring pipe by maintaining the injection optimal pressure of low pressure steam through a control valve and spreading the low pressure steam or stopping the spread of the steam through ball valves. A boiler(10) generates steam by composite burners(11) for combusting the by-product gas. An apparatus for managing a by-product transferring pipe of a cogeneration facility includes a low pressure steam guiding pipe(50), and a control valve(51). The low pressure steam guiding pipe is drawn from one end of a low pressure steam transferring pipe(41) and connected with a by-product transferring pipe(12). The control valve, which is mounted to one end of the low pressure steam guiding pipe, keeps the injection optimal pressure of the low pressure steam. Some of the low pressure steam is guided to the by-product transferring pipe for injection. The low pressure steam guiding pipe is installed with ball valves(52) for spreading the low pressure steam or the stopping the spread of the steam.

Description

열병합 발전설비의 부생가스 이송배관 관리방법 및 장치{MANAGEMENT METHOD AND APPARATUS OF SENDING PIPE LINE IN COGENERATION EQUIPMENT}MANAGEMENT METHOD AND APPARATUS OF SENDING PIPE LINE IN COGENERATION EQUIPMENT}

도 1은 종래의 열병합 발전설비의 발전공정을 나타낸 개략도1 is a schematic diagram showing a power generation process of a conventional cogeneration plant

도 2는 본 발명의 일실시예에 따른 열병합 발전설비의 부생가스 이송배관 관리장치의 개략도Figure 2 is a schematic diagram of the by-product gas transfer pipe management device of the cogeneration plant according to an embodiment of the present invention

도 3은 도 2에 의한 이송배관 관리방법의 작업흐름도 3 is a flow chart of the transfer pipe management method according to FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 보일러 11 : 복합버너 12 : 부생가스 이송배관 10: boiler 11: combined burner 12: by-product gas delivery piping

13 : 버너밸브 13 : 운전용컴퓨터단말기 13a : 본체부13 burner valve 13 operating computer terminal 13a main body

13b : 모니터부 20 : 터빈 21 : 고압증기 이송배관 13b: monitor 20: turbine 21: high pressure steam transfer piping

30 : 발전기 40 : 분사장치 41 : 저압증기 이송배관 30: generator 40: injection device 41: low pressure steam transfer piping

50 : 저압증기 유도배관 51 : 콘트롤밸브 52 : 볼밸브 50: low-pressure steam induction pipe 51: control valve 52: ball valve

본 발명은 열병합 발전설비의 부생가스 이송배관 관리방법 및 장치에 관한 것으로서, 보다 상세하게는 보일러를 정화하기 위하여 분사하는 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사함으로서, 부생가스 이송배관에 누적되는 타르 등의 누적물을 제거할 수 있도록 한 열병합 발전설비의 부생가스 이송배관 관리방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for managing a by-product gas delivery pipe of a cogeneration plant, and more particularly, by injecting a part of the low pressure steam injected to purify a boiler by injecting the by-product gas delivery pipe to the by-product gas delivery pipe. The present invention relates to a method and apparatus for managing by-product gas transfer piping of a cogeneration plant to remove accumulated tar and the like.

일반적으로, 제철소의 부생가스는 고로에서 부생되는 고로가스(BFG: blast furnace gas), 제강취련 과정에서 발생되는 전로가스(LDG: Linz-Donawitz gas)와, 코크스 제조과정에서 부생되는 코크스 가스(COG: Coke oven gas) 등이 있으며 상기의 부생가스를 이용하여 제철소내 열병합 발전설비의 보일러를 가동시켜 전기를 발생시키게 된다.In general, the by-product gas of steel mills includes blast furnace gas (BFG) by-product from blast furnaces, converter gas (LDG: Linz-Donawitz gas) generated during the steelmaking process, and coke gas (COG) produced by coke production. : Coke oven gas, etc. By using the by-product gas, the boiler of the cogeneration plant in the steelworks is used to generate electricity.

도 1은 종래의 열병합 발전설비의 발전공정을 나타낸 개략도로서, 종래의 열병합 발전설비는 증기발생 설비인 보일러(10)에서 증기를 발생시켜 상기 발생 된 증기를 고압증기 이송배관(21)을 통해 터빈(20)으로 이송하여 터빈(20)을 회전시킴으로서 기계적인 에너지로 변환시키고, 상기 터빈(20)과 직렬로 연결된 발전기(30)를 회전시켜 전기적 에너지로 변환시키게 되며, 상기 보일러(10)에서는 부생가스의 연소에 의한 화력으로 증기를 발생시키게 되는데 상기 부생가스는 부생가스 이송배관(12)에 의해 복합버너(11)로 이송되며, 그 일단에 설치된 버너밸브(13)에 의해 부생가스가 투입 또는 투입정지하게 된다.1 is a schematic view showing a power generation process of a conventional cogeneration plant, a conventional cogeneration plant generates a steam in the boiler 10 is a steam generating equipment to generate the steam through the high-pressure steam transfer pipe 21 turbine The turbine 20 is converted to mechanical energy by rotating the turbine 20, and the generator 30 connected in series with the turbine 20 is rotated and converted into electrical energy. The boiler 10 generates by-products. Steam is generated by the combustion of the gas, and the by-product gas is transferred to the composite burner 11 by the by-product gas conveying pipe 12, and the by-product gas is introduced or discharged by the burner valve 13 installed at one end thereof. Input stops.

각 부생가스의 제어는 부생가스 발생량에 따라 에너지 센터의 지령에 의해 각 부생가스의 투입량을 가감하게 되며, 이는 운전실 운전용컴퓨터단말기(13)내의 각 가스별 압력과 유량을 확인 후 압력 200mmH2O 이상 시 발생되는 점화허가 조건에 의해 운전자가 필요한 단의 복합버너(11)에 버너밸브(13)를 개방하여 보일 러(10)에서 연료를 연소하게 되고, 감소 필요 시에는 압력 60mmH2O 이하 시 운전용컴퓨터단말기(13) 내에 발신되는 압력 로우경보(LOW ALARM)에 의해 버너밸브(13)를 차단하여 감소시키게 된다.Each by-product gas is controlled by the energy center command according to the amount of by-product gas generated, and the input amount of each by-product gas is added or subtracted, which is confirmed when the pressure and the flow rate of each gas in the cab operation computer terminal 13 are higher than 200 mm H2O. The burner valve 13 is opened to the combined burner 11 of the stage required by the ignition permit condition to generate fuel to be burned in the boiler 10, and if necessary, the computer terminal for operation when the pressure is 60 mmH2O or less. The burner valve 13 is cut off by the pressure low alarm LOW ALARM transmitted in (13).

상기의 부생가스는 타르 등과 함께 많은 량의 부산물을 형성시키게 되며, 대부분의 부생가스는 보일러(10) 내에 유입되어 상기 부생가스와 같이 연소되어 제거되나 부생가스 이송 중에 부생가스 이송배관에 누적된 타르 등의 누적물은 제거되지 않고 상기 이송배관을 부식시켜 파공시키게 된다.The by-product gas forms a large amount of by-products with tar and the like, and most of the by-product gas is introduced into the boiler 10 and burned and removed as the by-product gas, but tar accumulated in the by-product gas transfer pipe during the by-product gas transfer. Accumulation of the back and the like is not removed to corrode and rupture the transfer pipe.

상기와 같이, 부생가스 이송배관이 파공될 경우, 부생가스 회수량 증대에 큰 차질을 유발하여 발전설비의 주업무인 전력 생산이 감소하며, 많은 량의 부생가스를 대기로 방출하여 환경오염과 더블어 막대한 에너지 손실을 초래하는 문제점이 있었다.As described above, when the by-product gas delivery pipe is ruptured, it causes a big obstacle in increasing the by-product gas recovery amount, thereby reducing the power production, which is the main task of the power generation equipment, and releasing a large amount of by-product gas into the atmosphere, thereby causing enormous pollution and double pollution. There was a problem that causes energy loss.

또한, 파공시 누설되는 중독가스에 의해 작업자가 설비 점검을 기피하게 될 뿐만 아니라 점검 시간대를 벗어나 발생되는 파공 현상은 화재사고와 대형 폭발 사고로 이어질 수 있으며 파공부분의 확인 작업시 누설된 가스에 의하여 중독 사고를 유발하는 등의 문제점이 있었다.In addition, not only the operator avoids the inspection of the facility due to the poisoning gas leaked during the drilling, but also the rupture occurring outside the inspection period may lead to a fire accident and a large explosion accident. There was a problem such as causing an addiction accident.

본 발명은 상술한 문제점을 해결하기 위한 것으로서, 특히, 본 발명은 부생가스 이송배관에 누적되는 타르 및 부산물 등의 누적물을 제거하기 위하여 보일러정화용 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사할 수 있도록 하는 열병합 발전설비의 부생가스 이송배관 관리방법 및 장치를 제공함에 목적이 있다.The present invention is to solve the above-described problems, in particular, the present invention injects a portion of the low pressure steam for boiler purification to the by-product gas delivery pipe in order to remove the accumulation of tar and by-products accumulated in the by-product gas delivery pipe It is an object of the present invention to provide a method and apparatus for managing by-product gas transfer piping of a cogeneration plant.

상술한 목적을 달성하기 위한 본 발명의 특징은, 보일러를 정화용 저압증기를 이송하는 저압증기 이송배관의 일단에서 하나 이상 추가 인출되어 복합버너 후단의 부생가스 이송배관에 연결되는 저압증기 유도배관과, 상기 저압증기 유도배관의 일단에 설치되며 상기 유도된 저압증기의 분사 최적압력을 유지시키기 위한 콘트롤밸브를 포함하는 열병합 발전설비의 부생가스 이송배관 관리장치이다.Features of the present invention for achieving the above object, the low-pressure steam induction pipe is connected to the by-product gas transfer pipe of the rear end of the combined burner at least one additional draw from one end of the low-pressure steam transport pipe for transporting the low pressure steam for purification; It is installed at one end of the low pressure steam induction pipe and is a by-product gas transfer pipe management device of the cogeneration plant including a control valve for maintaining the optimum pressure injection of the induced low pressure steam.

상기의 목적을 달성하기 위한 본 발명의 다른 특징은, 보일러를 정화하기 위하여 분사하는 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사함으로서, 부생가스 이송배관 내의 누적물을 제거하는 열병합 발전설비의 부생가스 이송배관 관리방법이다.Another feature of the present invention for achieving the above object is, by inducing a part of the low-pressure steam injected to purify the boiler by injecting into the by-product gas delivery pipe, the cogeneration plant for removing the accumulated matter in the by-product gas delivery pipe Byproduct gas transfer piping management method.

상기 본 발명의 특징에 의한 저압증기 유도배관은, 끝단에 볼밸브를 설치하여 상기 콘트롤밸브에 의해 최적압력으로 유지된 저압증기의 분사 또는 분사정지를 효과적으로 제어할 수 있게 구성할 수 있을 것이다. Low pressure steam induction pipe according to the characteristics of the present invention, by installing a ball valve at the end may be configured to effectively control the injection or injection stop of the low pressure steam maintained at the optimum pressure by the control valve.

또한, 상기 본 발명의 특징에 의한 저압증기 유도배관의 볼밸브는, 상기 부생가스 이송배관 내의 부생가스의 투입 또는 투입정지를 제어하는 버너밸브의 폐쇄신호에 의해 개방되어 저압증기를 분사시키고 상기 버너밸브의 개방신호에 의해 폐쇄되어 저압증기를 분사정지시킬 수 있게 구성할 수 있을 것이다.In addition, the ball valve of the low-pressure steam induction pipe according to the characteristics of the present invention is opened by the closing signal of the burner valve for controlling the injection or stop of the by-product gas in the by-product gas conveying pipe to inject low-pressure steam to the burner It may be configured to be closed by the open signal of the valve to stop the low pressure steam injection.

상기 본 발명의 특징에 의한 열병합 발전설비의 부생가스 이송배관 관리방법은, 부생가스의 이송 후, 부생가스 이송배관의 버너밸브를 폐쇄시킴으로서 부생가스의 투입을 정지시키는 가스 투입정지단계와, 상기 버너밸브의 폐쇄신호에 의해 저압증기 유도배관 끝단의 볼밸브가 개방되는 볼밸브개방단계와, 상기 볼밸브의 개방에 의해 저압증기를 부생가스 이송배관으로 분사하는 증기 분사단계와, 상기 저압증기의 분사압력에 의해 배관 내의 누적물이 보일러 내부로 유입되는 누적물 유입단계와, 상기 보일러 내부로 유입된 누적물이 보일러의 운전에 의해 연소되어 제거되는 누적물 제거단계를 포함하여 구성할 수 있을 것이다.The by-product gas delivery piping management method of the cogeneration plant according to the characteristics of the present invention includes a gas input stop step of stopping the introduction of by-product gas by closing the burner valve of the by-product gas delivery piping after the by-product gas is transferred, and the burner A ball valve opening step of opening the ball valve at the end of the low pressure steam induction pipe by a closing signal of the valve; and a steam injection step of injecting low pressure steam into the by-product gas delivery pipe by opening the ball valve; and injection of the low pressure steam. It may be configured to include a cumulative inflow step of accumulating in the pipe by the pressure is introduced into the boiler, and a cumulative removal step in which the cumulative accumulation introduced into the boiler is burned by the operation of the boiler.

상기 본 발명의 목적과 특징 및 장점은 첨부도면 및 다음의 상세한 설명을 참조함으로서 더욱 쉽게 이해될 수 있을 것이다.The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예의 구성 및 그 작용 효과에 대해 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and effect of the preferred embodiment of the present invention.

도 2는 본 발명의 일실시예에 따른 열병합 발전설비의 부생가스 이송배관 관리장치의 개략도로서, 본 발명의 부생가스 이송배관 관리장치의 전체구성을 개략적으로 나타내고 있다. 즉, 본 발명의 부생가스 이송배관 관리장치는, 종래 보일러(10)를 정화하기 위해 분사되는 저압증기를 이송하는 저압증기 이송배관(41)의 일단에서 하나 이상의 저압증기 유도배관(50)을 추가 인출하여 복합버너(11) 후단의 부생가스 이송배관(12)에 연결시켜 구성하게 된다.Figure 2 is a schematic diagram of the by-product gas transfer pipe management device of the cogeneration plant according to an embodiment of the present invention, schematically showing the overall configuration of the by-product gas delivery pipe management device of the present invention. That is, the by-product gas transfer pipe management device of the present invention, conventionally added one or more low-pressure steam induction pipe 50 at one end of the low-pressure steam transfer pipe 41 for transporting low-pressure steam injected to purify the boiler (10). It is drawn out and connected to the by-product gas conveying pipe 12 at the rear of the composite burner (11).

상기의 저압증기는 본래 보일러(10)의 내부를 정화시키기 위한 것으로서, 종래 터빈(20)을 회전시키기 위해 131kg/cm2로 분사되는 고압증기를 이송하는 고압증기 이송배관(21)의 일단에서 저압증기 이송배관(41)을 인출하여 분사장치(40)와 연결시키고 상기 저압증기를 분사장치(40)에 공급하여 상기 분사장치(40)를 통해 보 일러(10)내부로 분사시킴으로서 보일러(10)내부를 정화시키게 된다. The low pressure steam is originally intended to purify the interior of the boiler 10, the low pressure at one end of the high-pressure steam transfer pipe 21 for transporting the high-pressure steam injected at 131kg / cm 2 to rotate the conventional turbine 20 The steam transport pipe 41 is drawn out, connected to the injector 40, and the low pressure steam is supplied to the injector 40 to inject the boiler 10 into the boiler 10 through the injector 40. It purifies the interior.

본 발명은 저압증기가 12kg/cm2로 이송되는 상기 저압증기 이송배관(41)의 일단에서 저압증기를 부생가스 이송배관(12)으로 유도하기 위한 저압증기 유도배관(50)을 추가로 인출하여 복합버너(11) 후단의 부생가스 이송배관(12)에 연결시킴으로서 상기 저압증기 중 일부가 부생가스 이송배관(12)으로 유도되어 분사될 수 있도록 한다.The present invention further withdraws the low-pressure steam induction pipe 50 for guiding the low-pressure steam to the by-product gas delivery pipe 12 at one end of the low-pressure steam conveying pipe 41, the low-pressure steam is transferred to 12kg / cm 2 By connecting to the by-product gas delivery pipe 12 at the rear end of the composite burner 11, some of the low pressure steam is guided to the by-product gas delivery pipe 12 to be injected.

상기 저압증기 유도배관(50)의 일단에는 콘트롤밸브(51)를 설치하여 상기 저압증기의 유량과 압력을 조절하여 상기 저압증기가 분사 최적압력을 유지할 수 있도록 구성된다.One end of the low pressure steam induction pipe 50 is provided with a control valve 51 to adjust the flow rate and pressure of the low pressure steam is configured to maintain the optimum pressure of the low pressure steam.

또한, 상기 저압증기 유도배관(50)의 끝단에는 상기 콘트롤밸브(51)에 의해 최적압력으로 유지된 저압증기를 분사 또는 분사정지시키기 위한 볼밸브(52)가 설치되어, 상기 부생가스 이송배관(12)내의 부생가스의 투입 또는 투입정지를 제어하는 버너밸브(13)의 폐쇄신호에 의해 상기 볼밸브(52)가 개방되고, 버너밸브(13)의 개방신호에 의해 상기 볼밸브(52)가 폐쇄됨으로서, 상기 부생가스 이송배관(12)에 부생가스가 투입되는 동안은 저압증기를 분사하지 않으며, 부생가스 이송배관(12)에 부생가스가 투입정지 되었을 때, 저압증기를 분사하여 부생가스 이송배관(12)내의 타르 등의 누적물을 제거할 수 있도록 구성된다.Further, at the end of the low pressure steam induction pipe 50 is provided with a ball valve 52 for injecting or stopping the low pressure steam maintained at the optimum pressure by the control valve 51, the by-product gas transfer pipe ( 12, the ball valve 52 is opened by the closing signal of the burner valve 13 for controlling the injection or stop of the by-product gas in the by-product gas, the ball valve 52 is opened by the open signal of the burner valve 13 As it is closed, low pressure steam is not injected while the by-product gas is injected into the by-product gas delivery pipe 12, and when the by-product gas is stopped in the by-product gas delivery pipe 12, the low pressure steam is injected to transport the by-product gas. It is comprised so that the accumulated goods, such as tar in the piping 12, can be removed.

상기 버너밸브(13)의 폐쇄신호 및 개방신호의 전달은, 버너밸브(13)의 폐쇄신호가 운전용컴퓨터단말기(13)의 본체부(13a)로 전달되면,The closing signal and the opening signal of the burner valve 13 are transmitted to the main body 13a of the operation computer terminal 13 when the closing signal of the burner valve 13 is transmitted.

본체부(13a)에서는 상기 버너밸브(13)의 폐쇄신호에 의해 자동으로 볼밸브(52)로 개방신호를 보내는 동시에,The main body 13a automatically sends an open signal to the ball valve 52 in response to the closing signal of the burner valve 13,

상기 신호 및 버너밸브(13), 볼밸브(52)의 작동상황을 운전용컴퓨터단말기(13)의 모니터부(13b)를 통해 가시상(可視像)으로 표시하게 되며, The operation state of the signal and the burner valve 13, the ball valve 52 is displayed as a visible image through the monitor portion 13b of the computer terminal 13 for operation,

운전자는 상기 모니터부(13b)에 표시된 정보를 통해 버너밸브(13) 및 볼밸브(52)의 작동상황을 점검하게 된다.The driver checks the operation of the burner valve 13 and the ball valve 52 through the information displayed on the monitor unit 13b.

도 3은 도 2에 의한 이송배관 관리방법의 작업흐름도로서, 상기와 같이 구성된 본 발명의 부생가스 이송배관 관리장치에 의한 이송배관 관리방법을 나타내고 있다. 즉, 본 발명의 부생가스 이송배관 관리방법은 가스 투입정지단계(S1)와, 볼밸브개방단계(S2)와, 증기 분사단계(S3)와, 누적물 유입단계(S4)와, 누적물 제거단계(S5)를 포함하여 구성된다.FIG. 3 is a flowchart illustrating a transfer pipe management method according to FIG. 2, and illustrates a transfer pipe management method by the by-product gas transfer pipe management device of the present invention configured as described above. That is, the by-product gas conveying pipe management method of the present invention is the gas input stop step (S1), the ball valve opening step (S2), steam injection step (S3), cumulative inflow step (S4), and remove the accumulated matter It comprises a step S5.

상기 가스 투입정지단계(S1)는, 상기 부생가스 이송배관(12) 내의 누적물을 제거시키기 위해 부생가스의 투입을 정지시키는 단계로서, 부생가스의 이송 후, 부생가스 이송배관(12)의 버너밸브(13)를 폐쇄시킴으로서 부생가스의 투입을 정지시키게 되며,The gas input stop step (S1), the step of stopping the introduction of the by-product gas to remove the accumulated matter in the by-product gas delivery pipe 12, after the transfer of the by-product gas, the burner of the by-product gas delivery pipe 12 By closing the valve 13, the injection of by-product gas is stopped,

상기 볼밸브개방단계(S2)는, 상기 부생가스의 투입이 정지된 부생가스 이송배관(12)으로 저압증기를 공급하기 위해 볼밸브(52)를 개방하는 단계로서, 상기 버너밸브(13)의 폐쇄신호에 의해 저압증기 유도배관(50) 끝단의 볼밸브(52)가 개방되며,The ball valve opening step (S2) is a step of opening the ball valve 52 to supply the low pressure steam to the by-product gas transfer pipe 12 in which the injection of the by-product gas is stopped, the burner valve 13 of the The ball valve 52 at the end of the low pressure steam induction pipe 50 is opened by the closing signal.

상기 증기 분사단계(S3)는, 상기 볼밸브(52)의 개방에 의해 저압증기를 부생 가스 이송배관(12)으로 분사하는 것으로서, 상기 보일러(10)를 정화시키기 위한 저압증기 중 일부 유도된 저압증기가 저압증기 유도배관(50)의 일단에 설치된 콘트롤밸브(51)에 의해 그 유량과 최적 분사압력이 조절된 상태에서 끝단에 설치된 볼밸브(52)의 개방에 의해 상기 최적 분사압력을 바탕으로 부생가스 이송배관(12)에 분사되게 된다.The steam spraying step (S3) is to inject low-pressure steam into the by-product gas delivery pipe 12 by opening the ball valve 52, and partly induced low pressure of low-pressure steam for purifying the boiler 10. Based on the optimum injection pressure by opening the ball valve 52 installed at the end in the state in which the flow rate and the optimum injection pressure are controlled by the control valve 51 installed at one end of the low pressure steam induction pipe 50. It is injected into the by-product gas transfer pipe (12).

상기 누적물 유입단계(S4)는, 상기 저압증기의 분사압력에 의해 부생가스 이송배관(12) 내의 누적물이 보일러(10) 내부로 유입되는 단계로서, 부생가스 이송배관(12) 내의 누적물은 상기 최적 분사압력에 의해 분사된 저압증기에 의해 보일러(10) 내부로 밀려 유입되게 되며,The accumulation inflow step (S4) is a step in which the accumulated matter in the by-product gas delivery pipe 12 is introduced into the boiler 10 by the injection pressure of the low-pressure steam, the accumulation in the by-product gas delivery pipe 12 Is pushed into the boiler 10 by the low pressure steam injected by the optimum injection pressure,

상기 누적물 제거단계(S5)는, 상기와 같이 유입된 누적물이 보일러(10) 내부에서 연소되는 것으로서, 보일러(10) 내에 유입된 누적물은 부생가스를 연소하기 위한 보일러(10)의 운전에 의해 연소되어 제거되게 된다.The cumulative removal step (S5), as the cumulative flow introduced as described above is burned in the boiler 10, the accumulation flowed into the boiler 10 is the operation of the boiler 10 for burning by-product gas It is burned and removed by.

이외에도 본 발명인 열병합 발전설비의 부생가스 이송배관 관리방법 및 장치는 다양하게 변형실시될 수 있는 것으로, 본 발명의 목적범위를 일탈하지 않는 한, 변형되는 실시예들은 모두 본 발명의 권리범위에 포함되어 해석되어야 한다.In addition, by-product gas transport piping management method and apparatus of the cogeneration plant of the present invention may be variously modified, and the embodiments to be modified are all included in the scope of the present invention without departing from the scope of the present invention. Should be interpreted.

이상의 본 발명에 의하면, 보일러를 정화하기 위하여 분사하는 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사함으로서, 부생가스 이송배관에 누적되는 타르 등의 누적물을 제거할 수 있게 되는 등의 이점을 얻을 수 있게 된다.According to the present invention, by injecting a part of the low-pressure steam injected to purify the boiler to the by-product gas conveying pipe, and the like, it is possible to remove the accumulation of tar and the like accumulated in the by-product gas conveying pipe. You can get it.

Claims (5)

부생가스를 연소하는 복합버너에 의해 증기를 발생시키는 보일러를 포함하는 열병합 발전설비의 부생가스 이송배관 관리장치에 있어서,In the by-product gas transfer piping management apparatus of a cogeneration plant comprising a boiler for generating steam by a multi-burner burning by-product gas, 보일러의 정화용 저압증기를 이송하는 저압증기 이송배관의 일단에서 하나 이상 추가 인출되어 복합버너 후단의 부생가스 이송배관에 연결되는 저압증기 유도배관; 및A low pressure steam induction pipe connected to the by-product gas transfer pipe of the rear end of the combined burner by drawing one or more from one end of the low pressure steam transport pipe for transporting the low pressure steam for purification of the boiler; And 상기 저압증기 유도배관의 일단에 설치되며 상기 유도된 저압증기의 분사 최적압력을 유지시키기 위한 콘트롤밸브;A control valve installed at one end of the low pressure steam induction pipe and configured to maintain an optimum pressure of injection of the low pressure steam; 를 포함하며, 상기 보일러의 정화용 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사하는 것을 특징으로 하는 열병합 발전설비의 부생가스 이송배관 관리장치. Includes, by-product gas transport pipe management device of the cogeneration plant, characterized in that the injection by injecting a portion of the low-pressure steam for purification of the boiler by-product gas transport pipe. 제 1항에 있어서,The method of claim 1, 저압증기 유도배관은,Low pressure steam induction pipe, 끝단에 상기 콘트롤밸브에 의해 최적압력으로 유지된 저압증기를 분사 또는 분사정지시키기 위한 볼밸브가 설치되는 것을 특징으로 하는 열병합 발전설비의 부생가스 이송배관 관리장치.A by-product gas feed pipe management device for a cogeneration plant, characterized in that a ball valve for injecting or stopping injection of low pressure steam maintained at the optimum pressure by the control valve is installed at the end. 제 2항에 있어서,The method of claim 2, 볼밸브는, The ball valve is 상기 복합버너의 일단에 설치되어 부생가스 이송배관 내의 부생가스 투입 및 투입정지를 제어하는 버너밸브의 폐쇄신호에 의해 개방되어 저압증기를 분사시키고 버너밸브의 개방신호에 의해 폐쇄되어 저압증기를 분사정지시키는 것을 특징으로 하는 열병합 발전설비의 부생가스 이송배관 관리장치.It is installed at one end of the combined burner and opened by the closing signal of the burner valve to control the injection and injection of the by-product gas in the by-product gas delivery pipe and injects low pressure steam and closes by the open signal of the burner valve to stop the injection of low pressure steam. By-product gas transfer piping management device of a cogeneration plant, characterized in that for. 부생가스 이송배관의 일단에 설치되어 부생가스의 공급 및 공급정지를 제어하는 버너밸브와, 복합버너에 의해 보일러에서 발생 된 저압증기를 분사장치로 이송하는 저압증기 이송배관과, 저압증기 이송배관의 일단에서 추가 인출되어 부생가스 이송배관과 연결되는 저압증기 유도배관과, 저압증기 유도배관의 끝단에서 저압증기의 분사 및 분사정지를 제어하는 볼밸브를 포함하는 열병합 발전설비의 부생가스 이송배관 관리방법에 있어서,A burner valve installed at one end of the by-product gas conveying pipe to control supply and stop of the by-product gas, a low pressure steam conveying pipe for transporting the low pressure steam generated from the boiler by the combined burner to the injector, and a low pressure steam conveying pipe A method for managing by-product gas delivery piping of a cogeneration plant including a low pressure steam induction pipe which is additionally drawn at one end and connected to a by-product gas delivery pipe, and a ball valve controlling injection and stop of low pressure steam at the end of the low pressure steam induction pipe To 보일러를 정화하기 위하여 분사하는 저압증기의 일부를 부생가스 이송배관으로 유도하여 분사함으로서, 부생가스 이송배관 내의 누적물을 제거하는 것을 특징으로 하는 열병합 발전설비의 부생가스 이송배관 관리방법.A by-product gas delivery pipe management method of a cogeneration plant, characterized in that to remove the accumulated in the by-product gas delivery pipe by injecting a portion of the low-pressure steam injected to purify the boiler to the by-product gas delivery pipe. 제 1항에 있어서,The method of claim 1, 열병합 발전설비의 부생가스 이송배관 관리방법은,The by-product gas delivery piping management method of the cogeneration plant is 부생가스의 이송 후, 부생가스 이송배관의 버너밸브를 폐쇄시킴으로서 부생가스의 투입을 정지시키는 가스 투입정지단계와, A gas input stop step of stopping the introduction of the by-product gas by closing the burner valve of the by-product gas delivery pipe after the by-product gas is transferred; 상기 버너밸브의 폐쇄신호에 의해 저압증기 유도배관 끝단의 볼밸브가 개방되는 볼밸브개방단계와,A ball valve opening step of opening the ball valve at the end of the low pressure steam induction pipe by a close signal of the burner valve; 상기 볼밸브의 개방에 의해 저압증기를 부생가스 이송배관으로 분사하는 증기 분사단계와,Steam injection step of injecting low-pressure steam to the by-product gas delivery pipe by opening the ball valve, 상기 저압증기의 분사압력에 의해 배관 내의 누적물이 보일러 내부로 유입되는 누적물 유입단계와,An accumulation inflow step of accumulating the accumulated matter in the pipe into the boiler by the injection pressure of the low pressure steam; 상기 보일러 내부로 유입된 누적물이 보일러의 운전에 의해 연소되어 제거되는 누적물 제거단계를 포함하는 것을 특징으로 하는 열병합 발전설비의 부생가스 이송배관 관리방법.By-product gas transfer pipe management method of the cogeneration plant characterized in that it comprises a cumulative removal step that is removed by the combustion of the cumulative matter introduced into the boiler by the operation of the boiler.
KR1020060103411A 2006-10-24 2006-10-24 Management method and apparatus of sending pipe line in cogeneration equipment KR100785245B1 (en)

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Cited By (8)

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KR101048993B1 (en) 2008-11-24 2011-07-12 주식회사 포스코 Gas piping device
KR101825693B1 (en) * 2016-06-07 2018-02-07 주식회사 포스코 Apparatus for removing by-product gas in pipe
KR20200037710A (en) 2018-10-01 2020-04-09 주식회사 포스코 Apparatus for removing tar
KR102192293B1 (en) 2020-05-26 2020-12-17 케이.엘.이.에스 주식회사 Smart management system of superheated steam piping for thermal power plant
CN112547706A (en) * 2020-11-24 2021-03-26 广东大唐国际雷州发电有限责任公司 Pipeline crystallization cleaning device
KR20210141273A (en) * 2020-05-15 2021-11-23 한국지역난방공사 Virtual power plahnt system using renewable energy chp and virtual power plant operating method using the same
CN115815247A (en) * 2022-12-14 2023-03-21 山东东尊华泰环保科技有限公司 SCR denitration ammonia injection grid cleaning system and cleaning method
KR20240098688A (en) 2022-12-21 2024-06-28 (주)고려엔지니어링 A device for ignition of a blast furnace

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KR100312705B1 (en) * 1994-06-29 2002-02-19 박종석 Apparatus for scaling inner wall of feed water pipe and the like

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101048993B1 (en) 2008-11-24 2011-07-12 주식회사 포스코 Gas piping device
KR101825693B1 (en) * 2016-06-07 2018-02-07 주식회사 포스코 Apparatus for removing by-product gas in pipe
KR20200037710A (en) 2018-10-01 2020-04-09 주식회사 포스코 Apparatus for removing tar
KR20210141273A (en) * 2020-05-15 2021-11-23 한국지역난방공사 Virtual power plahnt system using renewable energy chp and virtual power plant operating method using the same
KR102384980B1 (en) 2020-05-15 2022-04-08 한국지역난방공사 Virtual power plahnt system using renewable energy chp and virtual power plant operating method using the same
KR102192293B1 (en) 2020-05-26 2020-12-17 케이.엘.이.에스 주식회사 Smart management system of superheated steam piping for thermal power plant
CN112547706A (en) * 2020-11-24 2021-03-26 广东大唐国际雷州发电有限责任公司 Pipeline crystallization cleaning device
CN112547706B (en) * 2020-11-24 2021-10-12 广东大唐国际雷州发电有限责任公司 Pipeline crystallization cleaning device
CN115815247A (en) * 2022-12-14 2023-03-21 山东东尊华泰环保科技有限公司 SCR denitration ammonia injection grid cleaning system and cleaning method
KR20240098688A (en) 2022-12-21 2024-06-28 (주)고려엔지니어링 A device for ignition of a blast furnace

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