KR102564861B1 - Combined thermal power heat recovery boiler dust collector - Google Patents

Combined thermal power heat recovery boiler dust collector Download PDF

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KR102564861B1
KR102564861B1 KR1020210060524A KR20210060524A KR102564861B1 KR 102564861 B1 KR102564861 B1 KR 102564861B1 KR 1020210060524 A KR1020210060524 A KR 1020210060524A KR 20210060524 A KR20210060524 A KR 20210060524A KR 102564861 B1 KR102564861 B1 KR 102564861B1
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South Korea
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filter
heat recovery
duct
exhaust
exhaust gas
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KR1020210060524A
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Korean (ko)
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KR20220153228A (en
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김유득
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주식회사 해림엔지니어링
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/528—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
    • 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
    • F01K23/06—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 combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—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 combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • 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]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

본 발명은 복합화력 배열회수 보일러 집진장치에 관한 것으로, 보다 상세하게는 복합화력발전소의 배가스 처리설비로 가스터빈의 후단에 배치된 덕트에 설치되어 복합화력발전의 기동시 발생되는 녹찌꺼기, 부식산화물 등의 입자상 물질, 그외 더스트를 효과적으로 제거하여 가스터빈의 가동효율을 저하시킬 수 있는 요인을 방지할 수 있도록 개선된 복합화력 배열회수 보일러 집진장치에 관한 것이다.The present invention relates to a dust collector for a combined cycle power plant heat recovery boiler, and more particularly, as an exhaust gas treatment facility for a combined cycle power plant, it is installed in a duct disposed at the rear of a gas turbine to remove rust and corrosion oxides generated during the start-up of a combined cycle power plant. The present invention relates to an improved combined thermal power heat recovery boiler dust collector capable of effectively removing particulate matter such as dust and other dust to prevent factors that may reduce the operating efficiency of a gas turbine.

Figure R1020210060524
Figure R1020210060524

Description

복합화력 배열회수 보일러 집진장치{Combined thermal power heat recovery boiler dust collector}Combined thermal power heat recovery boiler dust collector {Combined thermal power heat recovery boiler dust collector}

본 발명은 복합화력 배열회수 보일러 집진장치에 관한 것으로, 보다 상세하게는 복합화력발전소의 배가스 처리설비로 가스터빈의 후단에 배치된 덕트에 설치되어 복합화력발전의 기동시 발생되는 녹찌꺼기, 부식산화물 등의 입자상 물질, 그외 더스트를 효과적으로 제거하여 가스터빈의 가동효율을 저하시킬 수 있는 요인을 방지할 수 있도록 개선된 복합화력 배열회수 보일러 집진장치에 관한 것이다.The present invention relates to a dust collector for a combined cycle power plant heat recovery boiler, and more particularly, as an exhaust gas treatment facility for a combined cycle power plant, it is installed in a duct disposed at the rear of a gas turbine to remove rust and corrosion oxides generated during the start-up of a combined cycle power plant. The present invention relates to an improved combined thermal power heat recovery boiler dust collector capable of effectively removing particulate matter such as dust and other dust to prevent factors that may reduce the operating efficiency of a gas turbine.

복합화력발전은 공기를 압축기로 보내 압축한 후 연소기에서 연소시켜 고온, 고압의 가스를 만든 다음 배기가스를 방출하면서 압축, 가열, 팽창, 방열과정을 통해 가스터빈을 회전시켜 전기를 만드는 시스템이다.Combined Cycle Power Plant is a system that generates electricity by rotating a gas turbine through compression, heating, expansion, and heat dissipation processes while air is sent to a compressor, compressed, combusted to create high-temperature, high-pressure gas, and then discharged.

이때, 가스터빈을 회전시키고 배출된 배기가스는 배열회수보일러(HRSG:Heat Recovery Steam Generator)를 통해 배열이 회수되도록 설계되어 있다.At this time, the exhaust gas discharged by rotating the gas turbine is designed to recover heat through a heat recovery steam generator (HRSG).

그런데, 배열이 회수되는 과정에서 노후화에 의해 탈락되는 이물질, 부식에 의해 발생되는 부식산화물(예. 산화철), 그외 각종 더스트들이 발생되는데, 이들이 포집되지 않고 대기중으로 배출되게 되면 환경오염의 유발시키기 때문에 적절하고 효과적인 처리가 필요하다.However, in the process of heat recovery, foreign substances eliminated due to deterioration, corrosion oxides (eg iron oxide) generated by corrosion, and various other dusts are generated. Appropriate and effective treatment is required.

이를 위해, 배열회수덕트 상에 한 쪽으로 감거나 풀 수 있는 롤형 필터를 설치하여 필터링방식으로 포집하도록 하고 있다.To this end, a roll-type filter that can be wound or unwound on one side is installed on the heat recovery duct to collect the waste in a filtering method.

하지만, 이 경우에는 필터에 포집물질이 균일하게 포집되는 것이 아니라 한 쪽으로 치우치는 경우도 발생하고, 포집량이 많을 경우 눈막힘이 커져 필터링 효과가 떨어지기 때문에 필터를 신속하게 회전이동시켜야 하지만 그렇지 못할 경우 필터 전후의 차압이 커지면서 가스터빈의 발전효율을 급격히 떨어뜨리는 문제가 야기되었다.However, in this case, the collected material is not uniformly collected in the filter, but is biased to one side. If the amount of collected material is large, the filtering effect is reduced due to clogging, so the filter must be rotated quickly, but if not, the filter As the differential pressure between the front and back increases, the power generation efficiency of the gas turbine is rapidly reduced.

특히, 롤형 필터의 경우 사용수명이 짧다는 한계가 있어 새 것으로의 교체주기가 짧다는 단점도 있다.In particular, in the case of a roll-type filter, there is a disadvantage in that the replacement cycle for a new one is short due to the limitation that the service life is short.

국내 등록특허 제10-1390602호(2014.04.23.) 배열회수 보일러 철산화물 고효율 집진장치Domestic Patent No. 10-1390602 (2014.04.23.) Heat recovery boiler iron oxide high-efficiency dust collector 국내 등록특허 제10-1870328호(2018.06.18.) 복합화력 철산화물 처리가 가능한 롤 필터장치Domestic Patent No. 10-1870328 (2018.06.18.) Roll filter device capable of treating iron oxides in combined cycle power plants 국내 등록특허 제10-1899863호(2018.09.12.) 산화철 포집필터Domestic Patent No. 10-1899863 (2018.09.12.) Iron oxide collection filter

본 발명은 상술한 바와 같은 종래 기술상의 제반 문제점들을 감안하여 이를 해결하고자 창출된 것으로, 본 발명은 복합화력 배열회수 보일러 집진장치에 관한 것으로, 보다 상세하게는 복합화력발전소의 배가스 처리설비로 가스터빈의 후단에 배치된 덕트에 설치되어 복합화력발전의 기동시 발생되는 녹찌꺼기, 부식산화물 등의 입자상 물질, 그외 더스트를 효과적으로 제거하여 가스터빈의 가동효율을 저하시킬 수 있는 요인을 방지할 수 있도록 개선된 복합화력 배열회수 보일러 집진장치을 제공함에 그 주된 목적이 있다.The present invention was created in order to solve these problems in view of the various problems in the prior art as described above. The present invention relates to a dust collector for a combined cycle heat recovery boiler, and more particularly, to a gas turbine as an exhaust gas treatment facility of a combined cycle power plant It is installed in the duct placed at the rear of the gas turbine to effectively remove particulate matter such as rust residue, corrosion oxide, and other dust generated during the start-up of the combined cycle power plant to prevent factors that can reduce the operating efficiency of the gas turbine. The main purpose is to provide a combined cycle power heat recovery boiler dust collector.

본 발명은 상기한 목적을 달성하기 위한 수단으로, 가스터빈에서 발생된 배기가스를 배출하는 배기덕트(110)와; 배기가스에 함유된 배열을 회수하는 배열회수덕트(120)와; 상기 배열회수덕트(120)에 연결되어 배열이 회수되고 남은 배기가스를 대기중으로 배출하는 스택(130) 및 상기 배열회수덕트(120)에 설치되어 배기가스에 함유된 산화철, 부식산화물, 더스트를 포집하는 필터유닛(200);을 포함하는 복합화력 배열회수 보일러 집진장치에 있어서;The present invention is a means for achieving the above object, and an exhaust duct 110 for discharging exhaust gas generated from a gas turbine; an exhaust heat recovery duct 120 for recovering exhaust heat contained in the exhaust gas; The stack 130 connected to the exhaust heat recovery duct 120 to collect exhaust heat and discharging the remaining exhaust gas into the atmosphere, and the stack 130 installed in the exhaust heat recovery duct 120 to collect iron oxide, corrosion oxide, and dust contained in the exhaust gas. In the combined thermal power heat recovery boiler dust collector comprising a; filter unit 200;

상기 필터유닛(200)은 상기 배열회수덕트(120)를 상하로 관통하는 필터덕트(210)를 포함하며; 상기 필터덕트(210)의 상단부와 하단부는 각각 상기 배열회수덕트(120)의 상단면과 하단면에 밀착된 상태로 밀폐되고; 상기 배열회수덕트(120) 내부에서는 서로 마주보는 방향으로 개방된 'ㄷ' 형상의 가이드덕트(212) 한 쌍이 설치되며; 상기 필터덕트(210)의 상단과 하단에는 각각 필터드라이브박스(220)가 고정되고; 상기 필터드라이브박스(220) 내부에는 제어부에 의해 드라이빙되는 회동모터(222)에 의해 회전구동되는 필터드럼(224)이 설치되며; 상기 필터드럼(224)에는 필터(F)가 권취되고;The filter unit 200 includes a filter duct 210 vertically penetrating the heat recovery duct 120; The upper and lower ends of the filter duct 210 are sealed in close contact with the upper and lower surfaces of the heat recovery duct 120, respectively; Inside the array recovery duct 120, a pair of 'c'-shaped guide ducts 212 open in opposite directions are installed; A filter drive box 220 is fixed to the upper and lower ends of the filter duct 210, respectively; Inside the filter drive box 220, a filter drum 224 rotationally driven by a rotation motor 222 driven by a control unit is installed; A filter F is wound around the filter drum 224;

상기 배열회수덕트(120) 내부의 배기가스 흐름방향으로 보았을 때 상기 필터(F)의 후방에는 상,중,하에 걸쳐 에어펄스노즐(230)이 설치되며; 상기 에어펄스노즐(230)은 에어펄스조절기(232)와 연결되어 제어부의 신호에 따라 선택적으로 에어펄싱하도록 구성되고; 상기 에어펄스조절기(232)에는 압축공기공급부(240)가 연결되어 압축공기를 공급하도록 구성된 것을 특징으로 하는 복합화력 배열회수 보일러 집진장치를 제공한다.An air pulse nozzle 230 is installed in the upper, middle, and lower rear of the filter F when viewed in the direction of exhaust gas flow inside the heat recovery duct 120; The air pulse nozzle 230 is connected to the air pulse controller 232 and configured to selectively perform air pulse according to a signal from the control unit; The air pulse regulator 232 provides a combined thermal power heat recovery boiler dust collector, characterized in that the compressed air supply unit 240 is connected to supply compressed air.

이때, 상기 배열회수덕트(120)를 벗어난 외측의 상하 필터덕트(210) 상에는 각각 슬라이드게이트(214)가 설치되고; 제어부에 의해 구동되는 슬라이더(216)를 통해 상기 슬라이드게이트(214)가 개폐되게 구성되며; 상기 에어펄스노즐(230)이 설치된 쪽 필터(F)의 후방면에는 상,중,하에 걸쳐 차압계(250)가 설치되고; 상기 차압계(250)와 반대되는 필터(F)의 전방면에는 상,중,하에 걸쳐 압력계(260)가 설치되어 차압계(250)와의 압력차이를 검출한 후 제어부가 에어펄싱 여부를 결정하여 처리하도록 구성되며;At this time, slide gates 214 are installed on the upper and lower filter ducts 210 outside the heat recovery duct 120, respectively; The slide gate 214 is configured to open and close through the slider 216 driven by the control unit; A differential pressure gauge 250 is installed on the rear surface of the filter F on the side where the air pulse nozzle 230 is installed over the upper, middle, and lower parts; Pressure gauges 260 are installed on the front surface of the filter F, opposite to the differential pressure gauge 250, to detect the pressure difference with the differential pressure gauge 250, and then the control unit determines whether air pulsing is performed. consists of;

상기 필터(F)의 전방에는 간격을 두고 배열회수덕트(120) 내부의 온도를 상시 검출하는 온도계(270)가 설치되어 검출 온도가 260℃를 초과할 경우 필터(F)를 어느 일측의 필터드라이브박스(220)로 완전히 감도록 구성된 것에도 그 특징이 있다.In front of the filter (F), a thermometer (270) is installed to detect the temperature inside the heat recovery duct (120) at regular intervals, so that when the detected temperature exceeds 260°C, the filter (F) It is also characterized by being completely wrapped around the box 220.

본 발명에 따르면, 본 발명은 복합화력 배열회수 보일러 집진장치에 관한 것으로, 보다 상세하게는 복합화력발전소의 배가스 처리설비로 가스터빈의 후단에 배치된 덕트에 설치되어 복합화력발전의 기동시 발생되는 녹찌꺼기, 부식산화물 등의 입자상 물질, 그외 더스트를 효과적으로 제거하여 가스터빈의 가동효율을 저하시킬 수 있는 요인을 방지할 수 있도록 개선된 효과를 얻을 수 있다.According to the present invention, the present invention relates to a combined cycle heat recovery boiler dust collector, and more particularly, to an exhaust gas treatment facility of a combined cycle power plant, which is installed in a duct disposed at the rear of a gas turbine and generated when starting a combined cycle power plant It is possible to obtain an improved effect to prevent factors that may reduce the operational efficiency of a gas turbine by effectively removing particulate matter such as rust, corrosion oxide, and other dust.

도 1은 본 발명에 따른 복합화력 배열회수 보일러 집진장치의 설치예를 보인 예시도이다.
도 2는 도 1의 요부를 보인 예시도이다.1 is an exemplary view showing an installation example of a combined cycle heat recovery boiler dust collector according to the present invention.
FIG. 2 is an exemplary view showing a main part of FIG. 1 .

이하에서는, 첨부도면을 참고하여 본 발명에 따른 바람직한 실시예를 보다 상세하게 설명하기로 한다.Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

본 발명 설명에 앞서, 이하의 특정한 구조 내지 기능적 설명들은 단지 본 발명의 개념에 따른 실시예를 설명하기 위한 목적으로 예시된 것으로, 본 발명의 개념에 따른 실시예들은 다양한 형태로 실시될 수 있으며, 본 명세서에 설명된 실시예들에 한정되는 것으로 해석되어서는 아니된다.Prior to the description of the present invention, the following specific structural or functional descriptions are only exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms, It should not be construed as limited to the embodiments described herein.

본 발명에 따른 복합화력 배열회수 보일러 집진장치는 도 1의 예시와 같이, 가스터빈에서 발생된 배기가스를 배출하는 배기덕트(110)와; 배기가스에 함유된 배열을 회수하는 배열회수덕트(120)와; 상기 배열회수덕트(120)에 연결되어 배열이 회수되고 남은 배기가스를 대기중으로 배출하는 스택(130) 및 상기 배열회수덕트(120)에 설치되어 배기가스에 함유된 산화철, 부식산화물, 더스트를 포집하는 필터유닛(200);을 포함한다.As shown in the example of FIG. 1, the combined thermal power heat recovery boiler dust collector according to the present invention includes an exhaust duct 110 for discharging exhaust gas generated from a gas turbine; an exhaust heat recovery duct 120 for recovering exhaust heat contained in the exhaust gas; The stack 130 connected to the exhaust heat recovery duct 120 to collect exhaust heat and discharging the remaining exhaust gas into the atmosphere, and the stack 130 installed in the exhaust heat recovery duct 120 to collect iron oxide, corrosion oxide, and dust contained in the exhaust gas. A filter unit 200 to do; includes.

이때, 상기 필터유닛(200)은 필터덕트(210)를 포함한다.At this time, the filter unit 200 includes a filter duct 210.

상기 필터덕트(210)는 예컨대, 도 2의 예시와 같이 상기 배열회수덕트(120)를 상하로 관통하여 설치된다.The filter duct 210 is installed vertically through the exhaust heat recovery duct 120 as in the example of FIG. 2 .

즉, 필터덕트(210)의 상단부와 하단부는 각각 상기 배열회수덕트(120)의 상단면과 하단면에 밀착된 상태로 밀폐되고, 상기 배열회수덕트(120) 내부에서는 서로 마주보는 방향으로 개방된 'ㄷ' 형상의 가이드덕트(212) 한 쌍이 설치되며, 상기 필터덕트(210)의 상단과 하단에는 각각 필터드라이브박스(220)가 고정되고, 상기 필터드라이브박스(220) 내부에는 제어부(미도시)에 의해 드라이빙되는 회동모터(222)에 의해 회전구동되는 필터드럼(224)이 설치되며, 상기 필터드럼(224)에는 필터(F)가 권취된다.That is, the upper and lower ends of the filter duct 210 are sealed in close contact with the upper and lower surfaces of the heat recovery duct 120, respectively, and open in directions facing each other inside the heat recovery duct 120. A pair of 'c'-shaped guide ducts 212 are installed, and a filter drive box 220 is fixed to the top and bottom of the filter duct 210, respectively, and a control unit (not shown) is inside the filter drive box 220. A filter drum 224 rotationally driven by a rotation motor 222 driven by ) is installed, and a filter F is wound around the filter drum 224.

이 경우, 상기 필터드라이브박스(220)의 일측에는 내부 상황을 확인할 수 있도록 투명창으로 된 관측구(226)가 더 설치된다.In this case, an observation port 226 made of a transparent window is further installed on one side of the filter drive box 220 to check the internal situation.

뿐만 아니라, 상기 배열회수덕트(120)를 벗어난 외측의 상하 필터덕트(210) 상에는 각각 슬라이드게이트(214)가 설치되고, 제어부(미도시)에 의해 구동되는 슬라이더(216)를 통해 상기 슬라이드게이트(214)가 개폐되게 된다.In addition, slide gates 214 are installed on the upper and lower filter ducts 210 outside the array recovery duct 120, respectively, and the slide gates ( 214) is opened and closed.

이것은 필터(F)를 새 것으로 교체할 때, 혹은 배열회수덕트(120) 내부의 온도가 260℃를 초과할 때 필터(F)를 보호하기 위해 이를 완전히 감아 배열회수덕트(120) 내부에 존재하지 않게 할 때 필터덕트(210)를 통한 누기를 차단하기 위한 것이다.When the filter (F) is replaced with a new one, or when the temperature inside the heat recovery duct (120) exceeds 260 ° C, it is completely wrapped to protect the filter (F) so that it does not exist inside the heat recovery duct (120). This is to block air leakage through the filter duct 210 when not in use.

이와 같이, 상부의 필터드럼(224)에서 인출된 필터(F)는 밀폐된 필터덕트(210)를 지나 배열회수덕트(120) 내부 양측에 설치된 한 쌍의 가이드덕트(212)에 양단이 끼워진 채 안내되며, 최종적으로 하부의 필터드럼(224)에 감겨 사용되게 된다.In this way, the filter F drawn out from the upper filter drum 224 passes through the sealed filter duct 210 and is inserted into a pair of guide ducts 212 installed on both sides inside the heat recovery duct 120 while both ends are inserted. guide, and is finally used by being wound on the lower filter drum 224.

한편, 상기 배열회수덕트(120) 내부의 배기가스 흐름방향으로 보았을 때 상기 필터(F)의 후방에는 상,중,하에 걸쳐 에어펄스노즐(230)이 설치되고, 상기 에어펄스노즐(230)은 에어펄스조절기(232)와 연결되어 제어부의 신호에 따라 선택적으로 에어펄싱하도록 구성된다.On the other hand, when viewed in the exhaust gas flow direction inside the heat recovery duct 120, air pulse nozzles 230 are installed at the rear of the filter F over the upper, middle, and lower parts, and the air pulse nozzle 230 It is connected to the air pulse controller 232 and is configured to selectively perform air pulse according to a signal from the control unit.

그리고, 상기 에어펄스조절기(232)에는 압축공기공급부(240)가 연결되어 압축공기를 공급할 수 있도록 구성된다.Also, a compressed air supply unit 240 is connected to the air pulse controller 232 to supply compressed air.

이와 같이, 본 발명에서는 에어펄스가 가능하기 때문에 필터(F)의 전방에 여과되면서 걸러진 산화철, 부식성물질, 이물질 등에 의한 눈막힘이 발생하더라도 역압으로 털어낼 수 있어 필터(F)의 사용수명을 연장할 뿐만 아니라, 이로 인해 가스터빈의 발전효율을 증대시킬 수 있게 된다.As described above, since air pulses are possible in the present invention, even if clogging occurs due to iron oxide, corrosive substances, foreign substances, etc. filtered while being filtered in front of the filter (F), it can be removed with counter pressure, thereby extending the service life of the filter (F). In addition to this, it is possible to increase the power generation efficiency of the gas turbine.

특히, 통상 필터(F)는 210℃ 이하에서만 사용되는데, 이는 그 이상의 온도에서는 합성수지로 만들어진 필터가 손상되기 때문이다. 따라서, 배열회수덕트(120)내 온도가 헌팅하여 210℃ 초과하게 되면 즉시로 필터(F)를 감아 열기에 의해 필터(F)가 손상되는 것을 막아야 한다.In particular, the normal filter (F) is used only at 210 ° C. or lower, because the filter made of synthetic resin is damaged at a temperature higher than that. Therefore, when the temperature in the heat recovery duct 120 exceeds 210°C due to hunting, the filter F must be immediately wound to prevent the filter F from being damaged by heat.

하지만, 본 발명은 에어펄스를 통해 눈막힘을 해소할 뿐만 아니라, 에어 공급을 통해 필터(F)를 냉각시키는 효과도 있기 때문에 실험결과, 배열회수덕트(120) 내부온도가 260℃에 이를때까지 사용할 수 있는 특장점이 있음을 확인하였다.However, since the present invention not only eliminates clogging through air pulses, but also has an effect of cooling the filter F through air supply, as a result of the experiment, until the internal temperature of the heat recovery duct 120 reaches 260 ° C. It was confirmed that there are special advantages that can be used.

또한, 에어펄싱을 미세하게 조절하기 위해 상기 에어펄스노즐(230)이 설치된 쪽 필터(F)의 후방면에는 상,중,하에 걸쳐 차압계(250)가 설치되고, 그와 반대되는 필터(F)의 전방면에는 상,중,하에 걸쳐 압력계(260)가 설치되어 양자간의 압력차이를 검출한 후 제어부가 에어펄싱 여부를 결정하여 처리하게 된다.In addition, in order to finely adjust the air pulsing, a differential pressure gauge 250 is installed on the rear surface of the filter F on the side where the air pulse nozzle 230 is installed over the top, middle, and bottom, and the opposite filter (F) A pressure gauge 260 is installed on the front surface of the upper, middle, and lower sides to detect the pressure difference between the two, and then the control unit determines whether or not to perform air pulsing.

덧붙여, 상기 필터(F)의 전방에는 간격을 두고 배열회수덕트(120) 내부의 온도를 상시 검출하는 온도계(270)가 설치되며, 이 온도계(270)의 검출값에 따라 에어펄싱 혹은 필터(F) 감기가 수행되게 된다.In addition, a thermometer 270 for always detecting the temperature inside the heat recovery duct 120 at intervals is installed in front of the filter F, and depending on the detected value of the thermometer 270, air pulsing or filter F ) winding is performed.

이때, 만약 필터(F)가 어느 일측으로 완전히 감긴다면 그와 동시에 슬라이더(216)는 슬라이드게이트(214)로 장입되어 필터덕트(210)를 밀폐하게 된다.At this time, if the filter F is completely wound on one side, at the same time, the slider 216 is inserted into the slide gate 214 to seal the filter duct 210.

이에 더하여, 본 발명에서 사용되는 필터(F)는 선행기술들에 개시된 일반적인 합성수지를 틀에 고정한 방식이 아니라, 폴리아크릴, 폴리플로필렌, 폴리에스터, 폴리에틸렌, 폴리스티렌 등과 같은 필터용 합성수지를 직조할 때 일정간격을 두고 심재를 함께 직조하여 자체적으로 리지드한 특성을 갖도록 함으로써 별도의 틀체를 구비하지 않아도 되도록 구성된다.In addition, the filter F used in the present invention is not a method in which a general synthetic resin disclosed in the prior art is fixed to a frame, but when a synthetic resin for a filter such as polyacrylic, polypropylene, polyester, polyethylene, polystyrene, etc. is woven. It is configured so that a separate frame is not required by weaving the core material together at regular intervals to have a rigid characteristic on its own.

이 경우, 상기 심재는 내열성과 내구성이 우수한 폴리아미드를 사용한다.In this case, as the core material, polyamide having excellent heat resistance and durability is used.

특히, 필터용 합성수지에는 1-5중량%의 카본이 더 함유되어 직조됨으로써 통기도를 증대시켜 압력손실이 덜 걸리게 하며, 정전기를 유발시키게 하여 정전포집력을 함께 구현함으로써 포집능력도 높일 수 있도록 구성됨이 더욱 바람직하다.In particular, the synthetic resin for the filter contains 1-5% by weight of carbon and is woven to increase air permeability, thereby reducing pressure loss, and inducing static electricity to realize static collection power together, thereby increasing the collection capacity. more preferable

110: 배기덕트
120: 배열회수덕트
200: 필터유닛110: exhaust duct
120: heat recovery duct
200: filter unit

Claims (2)

가스터빈에서 발생된 배기가스를 배출하는 배기덕트(110)와; 배기가스에 함유된 배열을 회수하는 배열회수덕트(120)와; 상기 배열회수덕트(120)에 연결되어 배열이 회수되고 남은 배기가스를 대기중으로 배출하는 스택(130) 및 상기 배열회수덕트(120)에 설치되어 배기가스에 함유된 산화철, 부식산화물, 더스트를 포집하는 필터유닛(200);을 포함하는 복합화력 배열회수 보일러 집진장치에 있어서;
상기 필터유닛(200)은 상기 배열회수덕트(120)를 상하로 관통하는 필터덕트(210)를 포함하며; 상기 필터덕트(210)의 상단부와 하단부는 각각 상기 배열회수덕트(120)의 상단면과 하단면에 밀착된 상태로 밀폐되고; 상기 배열회수덕트(120) 내부에서는 서로 마주보는 방향으로 개방된 'ㄷ' 형상의 가이드덕트(212) 한 쌍이 설치되며; 상기 필터덕트(210)의 상단과 하단에는 각각 필터드라이브박스(220)가 고정되고; 상기 필터드라이브박스(220) 내부에는 제어부에 의해 드라이빙되는 회동모터(222)에 의해 회전구동되는 필터드럼(224)이 설치되며; 상기 필터드럼(224)에는 필터(F)가 권취되고;
상기 필터드라이브박스(220)의 일측에는 투명창으로 된 관측구(226)가 더 설치되며;
상기 필터(F)는 필터용 합성수지를 직조할 때 일정간격을 두고 심재를 함께 직조하여 별도의 틀체를 구비하지 않아도 되도록 구성하되, 상기 심재는 폴리아미드를 사용하고, 상기 필터용 합성수지에는 1-5중량%의 카본이 더 함유되어 직조되며;
상기 배열회수덕트(120)를 벗어난 외측의 상하 필터덕트(210) 상에는 각각 슬라이드게이트(214)가 설치되고; 제어부에 의해 구동되는 슬라이더(216)를 통해 상기 슬라이드게이트(214)가 개폐되게 구성되며;
상기 배열회수덕트(120) 내부의 배기가스 흐름방향으로 보았을 때 상기 필터(F)의 후방에는 상,중,하에 걸쳐 에어펄스노즐(230)이 설치되며; 상기 에어펄스노즐(230)은 에어펄스조절기(232)와 연결되어 제어부의 신호에 따라 선택적으로 에어펄싱하도록 구성되고; 상기 에어펄스조절기(232)에는 압축공기공급부(240)가 연결되어 압축공기를 공급하도록 구성된 것을 특징으로 하는 복합화력 배열회수 보일러 집진장치.an exhaust duct 110 for discharging exhaust gas generated from the gas turbine; an exhaust heat recovery duct 120 for recovering exhaust heat contained in the exhaust gas; The stack 130 connected to the exhaust heat recovery duct 120 to recover exhaust heat and discharging the remaining exhaust gas into the atmosphere, and the stack 130 installed in the exhaust heat recovery duct 120 to collect iron oxide, corrosion oxide, and dust contained in the exhaust gas. In the combined thermal power heat recovery boiler dust collector comprising a; filter unit 200;
The filter unit 200 includes a filter duct 210 vertically penetrating the heat recovery duct 120; The upper and lower ends of the filter duct 210 are sealed in close contact with the upper and lower surfaces of the heat recovery duct 120, respectively; Inside the array recovery duct 120, a pair of 'c'-shaped guide ducts 212 are installed facing each other; A filter drive box 220 is fixed to the upper and lower ends of the filter duct 210, respectively; Inside the filter drive box 220, a filter drum 224 driven to rotate by a rotation motor 222 driven by a control unit is installed; A filter F is wound around the filter drum 224;
An observation port 226 made of a transparent window is further installed on one side of the filter drive box 220;
The filter (F) is configured so that a separate frame is not required by weaving the core material together at regular intervals when the synthetic resin for the filter is woven, but the core material uses polyamide, and the synthetic resin for the filter is 1-5 It is woven by further containing weight percent of carbon;
Slide gates 214 are installed on the upper and lower filter ducts 210 outside the heat recovery duct 120, respectively; The slide gate 214 is configured to open and close through the slider 216 driven by the control unit;
An air pulse nozzle 230 is installed in the upper, middle, and lower rear of the filter F when viewed in the direction of exhaust gas flow inside the heat recovery duct 120; The air pulse nozzle 230 is connected to the air pulse controller 232 and is configured to selectively perform air pulse according to a signal from the control unit; The combined thermal power heat recovery boiler dust collector, characterized in that the compressed air supply unit 240 is connected to the air pulse regulator 232 to supply compressed air. 삭제delete
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010255957A (en) * 2009-04-27 2010-11-11 Etsuzo Fukuda Range hood filter device
KR101899863B1 (en) * 2018-03-08 2018-09-19 주식회사 이엠코 Iron oxide collection filter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010547A (en) * 1998-01-13 2000-01-04 Korea Institute Of Machinery And Materials Counterflow type particulate matter filter trap system having metal fiber filter
KR101390602B1 (en) 2012-09-04 2014-04-29 주식회사 이엠코 High efficiency dust collector of heat recovery boiler iron oxides
KR101870328B1 (en) 2015-04-28 2018-06-25 주식회사 이엠코 Roll filter apparatus capable of treating iron oxide of combined-cycle power plant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010255957A (en) * 2009-04-27 2010-11-11 Etsuzo Fukuda Range hood filter device
KR101899863B1 (en) * 2018-03-08 2018-09-19 주식회사 이엠코 Iron oxide collection filter

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