KR19980076835A - Coal gasification combined steam supply unit - Google Patents

Coal gasification combined steam supply unit Download PDF

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Publication number
KR19980076835A
KR19980076835A KR1019970013701A KR19970013701A KR19980076835A KR 19980076835 A KR19980076835 A KR 19980076835A KR 1019970013701 A KR1019970013701 A KR 1019970013701A KR 19970013701 A KR19970013701 A KR 19970013701A KR 19980076835 A KR19980076835 A KR 19980076835A
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steam
flow rate
water
coal gasification
quantitatively
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KR1019970013701A
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Korean (ko)
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KR100230887B1 (en
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유희종
정석우
윤용승
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이우복
고등기술연구원연구조합
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • 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
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

본 발명은 공급되는 물의 유량을 정량적으로 제어하여 이를 증기화하므로써 가스화 반응시 가스화기에 미량의 증기를 정량적으로 공급하며 종래의 증기를 정량공급하는 장치를 보다 단순화하는 석탄가스화 복합발전용 증기 정량공급장치에 관한 것으로 종래의 증기공급장치는 고온 및 고압으로 운전되는 조건하에서 증기의 연속적인 정량공급은 압력 및 유량제어가 동시에 만족되도록 설계되어야 하기 때문에 구성이 복잡해지고 이송되는 증기가 배관내에서 응축되는 것을 방지하기 위해서 단열부와 같은 부대설비가 요구되어 설치비용이 증가됨은 물론 설치작업이 어려운 문제점이 있어왔던바 본 발명은 미분탄과 산소 및 증기의 반응물질을 연소시키고 가스화 반응을 거쳐 가연성 물질을 얻는 석탄가스화 복합발전장치에 있어서, 상기 증기발생에 필요한 물을 정량적으로 공급하는 유량조절수단, 상기 유량조절수단에 의하여 정량공급된 물을 제어하며 증기화하는 증기발생수단, 상기 증기발생수단으로 발생한 증기를 가스화기로 공급하는 주입노즐로 구성되어 증기의 안정된 공급과 정확한 측정 및 제어를 가능케하는 한편 부대설비를 단순화하여 설치작업 및 소요비용을 절감하는 효과가 있는 석탄가스화 복합발전용 증기 정량공급장치이다.The present invention quantitatively controls the flow rate of water supplied to vaporize it, thereby quantitatively supplying a small amount of steam to the gasifier during gasification reaction, and quantitatively supplying steam for coal gasification combined power generation, which simplifies a device for quantitatively supplying conventional steam. The present invention relates to an apparatus. In the conventional steam supply apparatus, the continuous quantitative supply of steam under conditions operating at high temperature and high pressure has to be designed so that pressure and flow control are simultaneously satisfied. In order to prevent the auxiliary equipment such as the heat insulating part is required to increase the installation cost, as well as the installation work has been a problem that the present invention has been difficult to combust the pulverized coal and the reactants of oxygen and steam to obtain a combustible material through a gasification reaction. In the coal gasification combined cycle device, the steam generation It consists of a flow rate adjusting means for quantitatively supplying the required water, a steam generating means for controlling and vaporizing the water quantitatively supplied by the flow rate adjusting means, an injection nozzle for supplying the steam generated by the steam generating means to the gasifier It is a fixed quantity steam supply device for coal gasification combined power generation, which enables stable supply, accurate measurement and control, and reduces installation work and cost by simplifying auxiliary facilities.

Description

석탄가스화 복합발전용 증기 정량공급장치Coal gasification combined steam supply unit

본 발명은 석탄가스화 복합발전용 증기 정량공급장치에 관한 것으로 더욱 상세하게는 공급되는 물의 유량을 정량적으로 제어하여 이를 증기화하므로써 가스화 반응시 가스화기에 미량의 증기를 정량적으로 공급하며 종래의 증기를 정량공급하는 장치를 보다 단순화하는 석탄가스화 복합발전용 증기 정량공급장치에 관한 것이다.The present invention relates to a steam quantitative supply device for coal gasification complex power generation in more detail by quantitatively controlling the flow rate of the water to be supplied to vaporize it by quantitatively supplying a small amount of steam to the gasifier during the gasification reaction and conventional steam The present invention relates to a steam quantitative supply device for a coal gasification combined cycle that simplifies the quantitative supply device.

일반적으로 석탄가스화 복합발전 시스템의 석탄가스화공정은 석탄, 산소 및 증기 등의 반응물질이 연소 및 가스화 반응을 통하여 주생성물인 일산화탄소 및 수소와 같은 고온 건류(1000℃)된 연소성 가스를 고온 및 고압하에서 생성하는 공정이다.In general, the coal gasification process of the coal gasification combined cycle system is carried out by burning and gasification of reactants such as coal, oxygen, and steam under high temperature and high pressure of combustible gases such as carbon monoxide and hydrogen, which are the main products, under high temperature and high pressure. It is a process to produce.

이때 상기와 같이 석탄과 반응하는 반응물질 가운데 증기는 석탄이나 산소의 양과 비교하여 매우 미량이 요구되며 석탄가스화 공정에서 증기의 량은 석탄가스화 복합발전시 중요한 설계 및 조업인자중의 하나로 작용되므로 이를 만족하기 위한 전제조건으로 증기의 유량이 정량적으로 안정되게 가스화기에 공급되어야 한다.At this time, among the reactants reacted with coal, steam is required to be very small compared with the amount of coal or oxygen, and the amount of steam in the coal gasification process is satisfied because it acts as one of the important design and operation factors in coal gasification combined cycle power generation. The precondition for this is that the flow of steam must be supplied to the gasifier in a quantitatively stable manner.

따라서 석탄가스화 복합발전시에는 가스화기에 증기를 정량적으로 공급하기 위한 증기공급장치가 형성된다.Therefore, in the coal gasification combined cycle, a steam supply device for quantitatively supplying steam to the gasifier is formed.

도 1 은 일반적인 석탄가스화기를 이용한 복합발전 시스템을 개략적으로 도시한 구성도이다. 도 1에 도시한 바와 같이, 일반적인 석탄가스화기를 이용한 복합발전 시스템은 개략적으로 석탄을,등의 가연성 가스 연료로 전환하는 석탄 가스화 장치(10), 석탄 가스 내의 황성분 및 고형 입자(분진) 등을 제거하는 가스 정화 장치(20), 석탄 가스를 연소시켜 발생하는 에너지로 터빈을 돌려 전기를 생산하는 가스 터빈 장치(30) 및 가스 터빈 장치(30)에서 발생되는 폐열을 이용하여 전기를 추가 생산하는 증기 터빈 장치(40)로 구성된다.1 is a schematic view showing a combined cycle power generation system using a general coal gasifier. As shown in FIG. 1, the combined cycle power generation system using a general coal gasifier generally uses coal. , Coal gasifier 10 for converting to combustible gas fuel such as gas, gas purifier 20 for removing sulfur components and solid particles (dust) in coal gas, etc. It consists of the gas turbine apparatus 30 which produces | generates, and the steam turbine apparatus 40 which further produces electricity using the waste heat generate | occur | produced in the gas turbine apparatus 30.

상기 석탄 가스화 장치(10)에서는 가스화기(12)로 이송되는 미분탄과 반응하는 증기를 생성하여 공급하는 증기공급장치(14)가 형성되어 정량적으로 증기를 가스화기에 공급한다.In the coal gasifier 10, a steam supply device 14 for generating and supplying steam that reacts with the pulverized coal delivered to the gasifier 12 is formed to supply steam to the gasifier quantitatively.

종래의 석탄가스화 복합발전의 증기공급장치는 도 2 에서 도시된 바와같이 물을 공급받아 포화수증기를 생성하는 보일러부(50), 상기 보일러부(50)에서 생성된 포화수증기를 과열수증기로 가열하는 증기 가열부(60), 상기 증기 가열부(60)에서 생성된 과열수증기를 정량적으로 공급하는 증기 유량계(72)와 제어 밸브(74)로 형성되는 유량제어부(70), 상기 유량제어부(70)에서 공급되는 증기의 응축을 방지하며 가스화기(12)로 이송하는 단열배관부(80), 상기 단열배관부(80)와 가스화기(12)를 상호 연결하여 증기를 공급하는 주입노즐(82)로 구성된다.In the conventional coal gasification combined cycle power supply steam supply unit is a boiler unit 50 to generate saturated steam by receiving water as shown in Figure 2, to heat the saturated steam generated in the boiler unit 50 with superheated steam Flow control unit 70, the flow control unit 70 formed of a steam flow meter (72), a steam flow meter (72) and a control valve (74) for quantitatively supplying superheated steam generated by the steam heating unit (60). To prevent condensation of the steam supplied from the insulated pipe part 80 to be transferred to the gasifier 12, the injection nozzle 82 for supplying steam by connecting the heat insulating pipe part 80 and the gasifier 12 to each other; It consists of.

이와같은 증기공급장치는 보일러부에서 생성된 포화수증기가 증기 가열부에서 과열수증기화하고 이러한 과열수증기를 증기 유량계와 제어밸브로 정량화하여 단열부와 주입노즐을 거쳐 가스화기로 공급하여 증기가 석탄과 반응하므로써 석탄가스를 생성한다.Such a steam supply device is a saturated steam produced in the boiler section superheated steam in the steam heating section, and the superheated steam is quantified by a steam flow meter and a control valve and supplied to the gasifier through the heat insulating section and the injection nozzle to react with the coal. This produces coal gas.

그러나 종래의 증기공급장치는 고온 및 고압으로 운전되는 조건하에서 증기의 연속적인 정량공급은 압력 및 유량제어가 동시에 만족되도록 설계되어야 하기 때문에 구성이 복잡해지고 이송되는 증기가 배관내에서 응축되는 것을 방지하기 위해서 단열부와 같은 부대설비가 요구되어 설치비용이 증가됨은 물론 설치작업이 어려운 문제점이 있어왔다.However, the conventional steam supply device is designed to continuously satisfy the pressure and flow rate control under the conditions of operating at high temperature and high pressure, which is complicated in configuration and prevents condensed vapor from condensing in the pipe. In order to increase the installation cost, as well as additional facilities such as the insulation has been a difficult installation work.

본 발명은 이와같은 종래의 문제점을 해결하기 위하여 창출된 것으로 석탄가스화기에 공급되는 증기의 유량을 증기 대신에 정량화가 용이한 물을 대상으로 측정하기 위하여 미량의 물을 증기발생부에 정량적으로 공급하고 유입된 물을 순간적으로 가열,증발시켜 정량적인 증기를 발생시키므로써 이를 가스화기로 공급하여 증기의 안정된 공급과 정확한 측정 및 제어를 가능케하는 한편 부대설비를 단순화하여 설치작업 및 소요비용을 절감하는 석탄가스화 복합발전용 증기 정량공급장치를 제공하는데 그 목적이 있다.The present invention was created in order to solve such a conventional problem, quantitatively supply a small amount of water to the steam generator in order to measure the flow rate of the steam supplied to the coal gasifier to water that is easy to quantify instead of steam. Coal to reduce the installation work and cost by simplifying the auxiliary equipment while supplying the gas to the gasifier by supplying it to the gasifier by instant heating and evaporation of the water. An object of the present invention is to provide a vapor metering supply device for a gasification combined cycle.

도 1은 일반적인 석탄가스화 복합발전 시스템을 도시한 계통도,1 is a system diagram showing a general coal gasification combined cycle system,

도 2는 종래의 증기 정량공급장치를 개략적으로 도시한 계통도,Figure 2 is a schematic diagram showing a conventional steam metering device,

도 3은 본 발명의 증기 정량공급장치를 개략적으로 도시한 계통도.Figure 3 is a schematic diagram showing a steam metering device of the present invention.

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

10 : 석탄 가스화 장치, 30 : 가스터빈장치,10: coal gasifier, 30: gas turbine device,

50 : 보일러부, 70 : 유량제어부,50: boiler part, 70: flow control part,

110 : 유량조절수단, 120 : 증기발생수단.110: flow rate control means, 120: steam generating means.

상기와 같은 목적을 달성하기 위해서 본 발명은 미분탄과 산소 및 증기의 반응물질을 연소시키고 가스화 반응을 거쳐 가연성 물질을 얻는 석탄가스화 복합발전장치에 있어서, 상기 증기발생에 필요한 물을 정량적으로 공급하는 유량조절수단, 상기 유량조절수단에 의하여 정량공급된 물을 제어하며 증기화하는 증기발생수단, 상기 증기발생수단으로 발생한 증기를 가스화기로 공급하는 주입노즐로 구성되는 특징이 있다.In order to achieve the above object, the present invention is a coal gasification combined cycle power generation apparatus for combusting the reactant of pulverized coal and oxygen and steam to obtain a combustible material through a gasification reaction, the flow rate for quantitatively supplying the water required for steam generation The control means, the steam generating means for controlling and vaporizing the water supplied by the flow rate adjusting means, characterized in that consisting of the injection nozzle for supplying the steam generated by the steam generating means to the gasifier.

또한 본 발명의 유량조절수단은 저압 및 고압하에서 미소유량까지 제어가 가능한 정량공급용 미터링 펌프(Metering pump)로 구성되고 증기발생수단은 미터링 펌프에 연결되어 펌프후방압을 측정하는 압력계, 상기 유량조절수단으로의 물의 역압을 방지하고 차단하는 밸브수단 및 공급된 물을 순간적으로 가열하고 증발시키는 증기 발생기,상기 증기 발생기의 내부온도를 측정하고 제어하는 온도 제어기로 구성된다.In addition, the flow control means of the present invention is composed of a metering pump (metering pump) for metering supply capable of controlling up to a small flow rate under low pressure and high pressure, and the steam generating means is connected to the metering pump to measure the pressure of the pump pressure gauge, the flow rate control And a valve means for preventing and blocking back pressure of the water to the means, a steam generator for instantaneously heating and evaporating the supplied water, and a temperature controller for measuring and controlling the internal temperature of the steam generator.

이하에서는 첨부도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

도 3은 본 발명의 증기 정량공급장치를 개략적으로 도시한 계통도로써 저압 및 고압하에서 미량의 물을 정량적으로 공급하는 미터링 펌프(112)로 이루어진 유량조절수단(110)과 이러한 미터링 펌프(112)의 후단에 미터링 펌프(112)의 압력을 측정하는 압력계(122)를 형성하여 정량화된 물의 압력을 측정하는 한편 유입된 물의 역류를 방지하기 위한 체크 밸브(124) 및 정량화된 물을 순간적으로 가열하여 증기화하는 증기 발생기(126)를 구비하는 증기발생수단(120)으로 형성된다. 또한 상기 증기발생기(126)의 일측에는 증기발생기(126)의 내부온도를 측정하고 가열된 증기를 일정한 온도로 제어하는 온도 제어기(128)가 형성된다.Figure 3 is a schematic diagram showing the steam metering device of the present invention flow rate control means 110 consisting of a metering pump 112 for quantitatively supplying a small amount of water under low pressure and high pressure and of such a metering pump 112 A pressure gauge 122 is formed at the rear stage to measure the pressure of the metering pump 112 to measure the pressure of the quantified water, while instantaneously heating the check valve 124 and the quantified water to prevent backflow of the introduced water. It is formed by the steam generating means 120 having a steam generator 126 to be converted. In addition, a temperature controller 128 is formed at one side of the steam generator 126 to measure the internal temperature of the steam generator 126 and to control the heated steam to a constant temperature.

이렇게 증기 발생기(126)에서 정량적으로 생성된 증기는 주입 노즐(130)을 거쳐 가스화기(12)로 공급되어 석탄가스화된다.The steam quantitatively generated in the steam generator 126 is supplied to the gasifier 12 through the injection nozzle 130 to be coal gasified.

상기와 같이 구성되는 본 발명의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above in detail as follows.

도면을 참조하면 유량조절이 용이한 물을 미소한 양까지 제어가능한 정량공급용 미터링 펌프(112)를 거쳐 석탄가스화에 소요되는 증기를 생성하기 위한 물을 정량적으로 증기 발생기(126)에 유입한다.Referring to the drawings, the water for generating the steam required for coal gasification is quantitatively introduced into the steam generator 126 via a metering pump 112 for supplying quantitatively controllable water to a minute amount, which is easy to adjust the flow rate.

이때 상기 증기 발생기(126)와 미터링 펌프(112) 사이에는 압력계(122) 및 체크 밸브(124)가 설치되어 공급압의 측정 및 역류를 방지하게 된다.At this time, the pressure gauge 122 and the check valve 124 is installed between the steam generator 126 and the metering pump 112 to prevent the measurement of the supply pressure and backflow.

이렇게 증기 발생기(126)로 유입된 정량의 물은 증기 발생기(126)내에서 가열에 의하여 증기화되고 정량의 물이 가열되어 정량적으로 생성된 증기는 주입노즐(130)을 통하여 가스화기(12)로 이송된다.The quantity of water introduced into the steam generator 126 is vaporized by heating in the steam generator 126 and the quantitatively generated steam by heating the quantity of water is gasifier 12 through the injection nozzle 130. Is transferred to.

따라서 가스화기(12)내로 유입된 정량화된 증기에 의하여 증기의 안정된 공급과 정확한 측정 및 제어가 이루어진다.Thus, the quantified steam introduced into the gasifier 12 results in a stable supply of steam and accurate measurement and control.

이상에서 설명한 바와같이 본 발명은 미량의 물을 증기 발생기에 정량적으로 공급하고 유입된 물을 순간적으로 가열,증발시키므로써 정량적인 증기를 발생시켜 이를 가스화기로 공급하여 증기의 안정된 공급과 정확한 측정 및 제어를 가능케하는 한편 부대설비를 단순화하여 설치작업 및 소요비용을 절감하는 효과가 있다.As described above, the present invention quantitatively supplies a small amount of water to the steam generator and instantaneously heats and evaporates the introduced water, thereby generating quantitative steam and supplying it to the gasifier to provide stable supply of steam and accurate measurement and control. It is possible to reduce the installation work and cost by simplifying the auxiliary equipment.

즉. 석탄가스화기에 공급되는 증기의 유량을 증기 대신에 물로 조절함으로써 유량 조절이 정확할 뿐만 아니라 설비도 단순화된다.In other words. By adjusting the flow rate of the steam supplied to the coal gasifier with water instead of steam, the flow rate control is not only accurate, but also the installation is simplified.

Claims (3)

미분탄과 산소 및 증기의 반응물질을 연소과정과 가스화 반응을 거쳐 가연성 물질을 얻는 석탄가스화 복합발전장치에 있어서,In the coal gasification combined cycle power plant to obtain a combustible material through the combustion process and gasification reaction of the pulverized coal, oxygen and steam, 상기 증기발생에 필요한 물을 정량적으로 공급하는 유량조절수단(110);A flow rate control means 110 for quantitatively supplying water for steam generation; 상기 유량조절수단(110)에 의하여 정량공급된 물을 제어하며 증기화하는 증기발생수단(120);Steam generating means 120 for controlling and vaporizing the water quantitatively supplied by the flow rate control means 110; 상기 증기발생수단(120)에서 발생한 증기를 가스화기(12)로 공급하는 주입노즐(130)로 구성되는 것을 특징으로 하는 석탄가스화 복합발전용 증기의 정량공급장치.The quantitative supply device for steam for coal gasification complex generation, characterized in that consisting of the injection nozzle 130 for supplying the steam generated by the steam generating means 120 to the gasifier (12). 제 1 항에 있어서,The method of claim 1, 상기 유량조절수단(110)은 저압 및 고압하에서 미소유량까지 제어가 가능한 정량공급용 미터링 펌프(112)로 구성되는 것을 특징으로 하는 석탄가스화 복합발전용 증기의 정량공급장치.The flow rate regulating means 110 is a fixed quantity supply device for coal gasification combined steam characterized in that the metering pump 112 for quantitative supply capable of controlling up to a small flow rate under low pressure and high pressure. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 증기발생수단(120)은 미터링 펌프(112)를 거쳐 유입된 물의 압력을 측정하는 압력계(122);The steam generating means 120 includes a pressure gauge 122 for measuring the pressure of water introduced through the metering pump 112; 상기 유량조절수단(110)으로의 물의 역류를 방지하는 체크 밸브(124) ;Check valve 124 to prevent the back flow of water to the flow rate control means 110; 상기 체크 밸브(124)를 통하여 공급된 물을 순간적으로 가열하고 증발시키는 증기 발생기(126);A steam generator (126) for instantaneously heating and evaporating water supplied through the check valve (124); 상기 증기 발생기(126)의 내부온도를 측정하고 제어하는 온도 제어기(128)로 구성되는 것을 특징으로 하는 석탄가스화 복합발전용 증기의 정량공급장치.Quantitative supply device for steam for coal gasification combined power generation, characterized in that consisting of a temperature controller (128) for measuring and controlling the internal temperature of the steam generator (126).
KR1019970013701A 1997-04-15 1997-04-15 Vapor constant feeder for coal gasifier KR100230887B1 (en)

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Publication number Priority date Publication date Assignee Title
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