KR100549239B1 - Reducing agent injection nozzle of selective non-catalytic reduction system - Google Patents

Reducing agent injection nozzle of selective non-catalytic reduction system Download PDF

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KR100549239B1
KR100549239B1 KR1020050072015A KR20050072015A KR100549239B1 KR 100549239 B1 KR100549239 B1 KR 100549239B1 KR 1020050072015 A KR1020050072015 A KR 1020050072015A KR 20050072015 A KR20050072015 A KR 20050072015A KR 100549239 B1 KR100549239 B1 KR 100549239B1
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South Korea
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nozzle
furnace
delete delete
injection
coupled
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KR1020050072015A
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Korean (ko)
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김병효
박태성
박유리
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주식회사 한산-이
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants

Abstract

본 발명은 무촉매 반응설비(SNCR)에 있어서, 분사노즐의 분사 상태에 대한 간단한 확인과 노즐의 교체를 간단히 할 수 있도록 하는 무촉매 반응설비 시스템의 환원제 분사노즐에 관한 것이다.The present invention relates to a reductant injection nozzle of a non-catalytic reaction system (SNCR), which enables a simple confirmation of the injection state of the injection nozzle and the replacement of the nozzle.

이러한 본 발명은 일반적인 분사노즐의 고정방식이 플렌지 볼트로 체결되어 탈 부착이 번거럽고 분사상태의 확인이 어려운 점에 착안하여 탈부착 플렌지 및 노즐 보스를 설치하여 탈 부착이 간편하고, 탈착 후 노즐의 분사 상태를 바로 확인할 수 있도록 하는 것이다.In the present invention, the fixing method of the general injection nozzle is fastened by the flange bolt, so that the attachment and detachment is cumbersome and it is difficult to check the injection state. It allows you to check the status immediately.

분사노즐, 분사확인, 노즐체결, 유체분사Injection nozzle, injection confirmation, nozzle tightening, fluid injection

Description

무촉매 반응설비 시스템의 환원제 분사노즐{Reducing agent injection nozzle of Selective Non-Catalytic Reduction system}Reducing agent injection nozzle of Selective Non-Catalytic Reduction system

도 1은 본 발명의 무촉매 반응설비(SNCR) 노즐장착 시 구성도
도 2는 본 발명의 무촉매 반응설비(SNCR) 노즐장착 분해 시 구성도
도 3은 본 발명의 요부 확대 단면도
[도면의 주요 부분에 대한 부호의 설명]
FX : 후렉시블 CO : 커플러 CH : 체크밸브 S : 전자변
2 : 로 후렌지 3 : 탈착용 후렌지 4 : 노즐보스
5 : 노즐 외통 6 : 고정볼트 7 : 노즐팁1 is a configuration diagram when mounting a non-catalytic reaction facility (SNCR) nozzle of the present invention
Figure 2 is a schematic view when disassembling the non-catalytic reaction facility (SNCR) nozzle mounting
3 is an enlarged cross-sectional view of the main part of the present invention;
[Description of Symbols for Main Parts of Drawing]
FX: Flexible CO: Coupler CH: Check Valve S: Electronic Valve
2: Low Hurenji 3: Desorption Hurenji 4: Nozzle Boss
5: nozzle outer cylinder 6: fixing bolt 7: nozzle tip

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본 발명은 보일러, 소각로, 가열로 등의 연소로에서 발생되는 유해 가스 중 질소산화물(NOx)을 처리하는 무촉매 반응설비(SNCR : Selective Non-Catalytic Reduction)에서, 분사노즐의 분사 상태에 대한 간단한 확인과 노즐의 교체를 간단히 할 수 있도록 하는 무촉매 반응설비 시스템의 환원제 분사노즐에 관한 것이다.
일반적으로 기존의 SNCR노즐은 자동 전,후진 되는 방식으로 구성하되 전진 후 플렌지 결합된 상태에서 로 내부로 환원제가 분사되고, 상하 다층으로 설치된 노즐의 분사위치 선정은 운전자에 의해 선택되어 작동되게 되어 있으므로, 이러한 기존 SNCR 시스템에서는 로 내부로 장착된 노즐을 분해하기 전까지는 노즐의 마모, 부식, 분사상태 등을 판단하기 매우 어려운 문제가 있으며, 또한 불완전한 분사일 경우 환원제 사용량 증가, 질소산화물의 불안전한 배출, 불안전 연소로 인한 일산화탄소 배출증가, 내화물의 소손, 수관의 파손 등 여러 문제점을 발생시키는 것이었다. The present invention provides a simple method for the injection state of injection nozzles in a non-catalytic reaction facility (SNCR) for treating nitrogen oxides (NOx) generated in combustion furnaces such as boilers, incinerators, heating furnaces, and the like. The present invention relates to a reducing agent injection nozzle of a non-catalytic reaction system system which simplifies identification and nozzle replacement.
In general, the existing SNCR nozzles are configured in a way of automatic forward and backward, but the reducing agent is injected into the furnace in the state where the flange is coupled after the forward movement, and the spraying position of the nozzle installed in the upper and lower layers is selected and operated by the driver. However, in such a conventional SNCR system, it is very difficult to determine nozzle wear, corrosion, and spraying conditions until the nozzles installed in the furnace are disassembled.In addition, incomplete spraying increases the amount of reducing agent and unsafe discharge of nitrogen oxides. Increased carbon monoxide emissions from unstable combustion, burns in refractory, and water pipe breakage.

본 발명은 상기된 문제점을 해결하기 위한 것으로, 탈부착이 용이한 구조의 노즐을 설치하여 노즐의 분사상태를 간단히 확인하고 교체가 간편한 노즐 분사장치를 제공하고자 하는 것이다.
이러한 본 발명은 유체를 에어 또는 스팀으로 분사시켜 연소실로 분무시키는 노즐에 있어서, 상기 무화된 유체를 분사시키는 노즐팁이 형성된 노즐외통에는 노즐보스를 고정볼트로 고정시키고, 상기 노즐팁이 끼워지는 로 에는 로 후렌지를 형성시켜 탈착용 후렌지를 결합시키며, 상기 탈착용 후렌지에 노즐보스가 경사면을 타고 끼워지게 결합시킴으로서 이루어진다.The present invention is to solve the above problems, it is to provide a nozzle injector that is easy to replace the nozzle simply check the spraying state of the installation by installing a removable nozzle structure.
The present invention is a nozzle for injecting fluid into the combustion chamber by injecting fluid into the air or steam, the nozzle tip is formed in the nozzle outer cylinder formed with a nozzle tip for injecting the atomized fluid fixed in the nozzle boss with a fixed bolt, the nozzle tip is fitted The furnace flange is formed by coupling the removable flange, and the nozzle boss is made by coupling to the fitting on the inclined surface to the removable flange.

본 발명은 보일러, 소각로, 연소로 등의 각종 로(100)에 사용되는 유해가스 처리설비인 노즐(200)에 관한 것으로, 노즐(200)을 로(100)에 간단히 탈착시킬 수 있도록 하므로서, 분사노즐(200)의 분사 상태에 대한 간단한 확인과 노즐(200)의 교체를 간단히 할 수 있도록 하는 것이다.
본 발명의 노즐(200)은 후렉시블(FX)(FX')을 통하여 각각 유체와 에어 또는 스팀이 공급되어 유체가 에어 또는 스팀으로 분무된 후 선단의 노즐팁(7)을 통하여 로(100) 내부로 분사시키는 일반적인 노즐에 있어서, 노즐(200)을 로(100)에 간단히 탈부착시킬 수 있도록 하는 것이다.
여기서 유체는 후렉시블(FX)을 통하여 커플러(CO)에서 체크밸브(CH)를 통하여 노즐(200)로 유입되고, 에어 또는 스팀은 후렉시블(FX')과 커플러(CO')를 통하여 노즐(200)로 유입되어 유체를 에어 또는 스팀으로 분사시키게 된다.
노즐(200)은 노즐팁(7) 및 커플러(CO)(CO')가 결합되는 노즐외통(5)이 구비되고, 상기 노즐외통(5)에는 노즐보스(4)를 고정볼트(6)를 이용하여 조립하며, 상기 노즐보스(4)에는 경사면(A)을 테이퍼지게 형성하고, 노즐외통(5)의 전방으로 로(100) 내부에 분무된 유체를 분사시키는 노즐팁(7)이 결합시킨다.
상기 노즐보스(4)는 노즐외통(5)에서 이동가능하고, 볼트(6)에 의해 위치가 고정되므로, 노즐보스(4)의 위치를 자유롭게 이동시킬 수 있으며, 이는 노즐팁(7)이 로(100) 내부에 위치하는 길이를 조정하는 것을 의미한다.
로(100)에는 로 후렌지(2)를 설치하되 로 후렌지(2)에는 탈착 후렌지(3)를 결합시키되 상기 탈착 후렌지(3)에는 경사면(B)을 테이퍼지게 형성하고, 상기 탈착후렌지(3)에 형성된 경사면(B)은 노즐보스(4)에 형성된 경사면(A)과 테이퍼진 상태로 결합되게 한다.
즉 본 발명의 노즐(200)은 로(100)에 착탈시키게 되는 것으로, 노즐(200)의 노즐팁(7)이 로(100) 내부에 위치하도록 노즐(200)을 밀어 넣으면 노즐보스(4)에 형성된 경사면(A)과 탈착용 후렌지(3)에 형성된 경사면(B)이 서로 결합되면서 노즐(200)이 결합되게 되며, 이때 노즐(200)을 밀어 넣을 수록 경사면(A)(B)의 접촉면적이 넓어져 결합력이 높아지게 된다.
따라서 노즐(200)을 로(100) 내부로 간단히 밀어 넣기만 하면 노즐(200)의 노즐보스(4)와 로(100)의 탈착 후렌지(3)에 형성된 경사면(A)(B)이 서로 맞물리게 되어 결합이 이루어지게 되므로, 노즐(200)의 결합이 손쉽게 이루어진다.
한편 노즐(200)을 분리시키기 위해서는 간단히 노즐(200)을 빼내면 경사면(A)(B)의 결합력이 해제되면서 노즐(200)이 로(100)에서 간단히 분리되게 된다.
여기서 노즐보스(4)는 노즐외통(5)을 타고 좌우로 이동하며 고정볼트(6)에 의해 고정이 이루어지게 되는 것으로, 노즐보스(4)를 노즐팁(7)쪽으로 고정시킬수록 노즐팁(7)이 로(100) 내부에서 적게 돌출되고, 반대로 노즐보스(4)를 노즐팁(7)에서 멀은 쪽으로 고정시킬수록 노즐팁(7)이 로(100) 내부에서 많이 돌출되게 되는 것을, 노즐보스(4)의 위치를 변화시켜 노즐팁(7)이 로(100) 내부에서 돌출되는 길이를 조절하게 된다.
또한 본 발명은 노즐(200)의 파손시 교체가 빠르게 중화수 또는 환원제가 공급되는 후렉시블(FX)과 에어 또는 스팀이 공급되는 후렉시블(FX')에 각각 커플러(CO)(CO')를 설치하여 노즐(200)을 손을호 착탈시키고, 분사상태를 확인할 때 전혀 지장을 받지 않는다.
위와 같이 커플러(CO)(CO')를 통하여 2유체를 유입시킬 때 한 쪽 포트에는 체크밸브(CH)를 설치하여 유체가 역류하지 않도록 한다.
이 같이 본 발명은 상술한 특징의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention relates to a nozzle 200 which is a noxious gas treatment facility used in various furnaces 100, such as a boiler, an incinerator, a combustion furnace, etc., so that the nozzle 200 can be easily detached from the furnace 100 and sprayed. It is to simplify the check of the injection state of the nozzle 200 and to simplify the replacement of the nozzle 200.
The nozzle 200 of the present invention is supplied with fluid and air or steam through the flexible FX FX ', respectively, and the fluid is sprayed with air or steam, and then inside the furnace 100 through the nozzle tip 7 at the tip. In a typical nozzle sprayed with a furnace, the nozzle 200 can be easily attached to and detached from the furnace 100.
Here, the fluid flows into the nozzle 200 through the check valve CH from the coupler CO through the flexible FX, and air or steam flows through the nozzle 200 through the flexible FX 'and the coupler CO'. It is injected into the fluid to spray the air or steam.
The nozzle 200 is provided with a nozzle outer cylinder 5 to which the nozzle tip 7 and the coupler CO and CO 'are coupled. The nozzle outer cylinder 5 has a nozzle boss 4 fixed to the fixing bolt 6. Assembled by using, the nozzle boss 4 is tapered to form the inclined surface (A), the nozzle tip (7) for injecting the sprayed fluid into the furnace 100 in front of the nozzle outer cylinder (5) is coupled .
Since the nozzle boss 4 is movable in the nozzle outer cylinder 5 and the position is fixed by the bolt 6, the position of the nozzle boss 4 can be freely moved, which means that the nozzle tip 7 is (100) means adjusting the length located inside.
A furnace flange 2 is installed in the furnace 100, but a furnace flange 2 is coupled to a desorption flange 3, but an inclined surface B is tapered on the desorption flange 3 and the desorption flange 3. The inclined surface (B) formed in the inclined surface (A) formed in the nozzle boss (4) is to be coupled in a tapered state.
That is, the nozzle 200 of the present invention is to be attached to or detached from the furnace 100. When the nozzle 200 is pushed in such that the nozzle tip 7 of the nozzle 200 is positioned inside the furnace 100, the nozzle boss 4 is applied. The inclined surface (A) formed in the inclined surface (B) formed on the removable flange (3) is coupled to each other and the nozzle 200 is coupled, the pushed in the nozzle 200, the contact of the inclined surface (A) (B) The area becomes wider and the bonding force becomes higher.
Therefore, simply pushing the nozzle 200 into the furnace 100 allows the nozzle boss 4 of the nozzle 200 and the inclined surfaces A and B formed on the removable flange 3 of the furnace 100 to engage with each other. Since the combination is made, the nozzle 200 is easily combined.
Meanwhile, in order to separate the nozzle 200, simply removing the nozzle 200 releases the coupling force of the inclined surfaces A and B while the nozzle 200 is simply separated from the furnace 100.
The nozzle boss (4) is moved to the left and right by the nozzle outer cylinder (5) is to be fixed by the fixing bolt (6), the nozzle tip (4) as the nozzle tip (7) toward the nozzle tip ( 7) less protrudes in the furnace 100, on the contrary, as the nozzle boss 4 is fixed away from the nozzle tip 7, the nozzle tip 7 protrudes more inside the furnace 100, By changing the position of the nozzle boss 4, the length of the nozzle tip 7 protrudes from the furnace 100 is adjusted.
In addition, the present invention by installing a coupler (CO) (CO ') in the flexible (FX) is supplied with neutralized water or reducing agent is quickly replaced when the nozzle 200 is damaged and the flexible (FX') is supplied with air or steam When the nozzle 200 is detached from the hand, it does not interfere at all when checking the spraying state.
As above, when two fluids are introduced through the coupler (CO) (CO '), a check valve (CH) is installed at one port so that the fluid does not flow back.
As such, the present invention is not limited to the preferred embodiments of the above-described features, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes are within the scope of the claims.

본 발명은 노즐을 전,후진시키는 장치가 불필요하여 시설 설치비가 저렴하고, 또한 노즐의 분사상태 확인이 용이하여 노즐의 마모 및 부식상태의 조기발견으로 약품 사용량을 절감시키는 한편 배기가스를 안정적으로 처리할 수 있으며, 노즐의 분사 위치 조절이 용이한 효과가 있는 것이다.The present invention eliminates the need for a device for moving the nozzle forward and backward, thus lowering the installation cost of the facility. Also, it is easy to check the spraying state of the nozzle. It can be, and the injection position of the nozzle is easy to adjust the effect.

Claims (9)

삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 두 개의 후렉시블(FX)(FX')로 각기 유체 또는 스팀을 공급하여 유체를 로(100) 내부로 분무 분사시키는 노즐(200)에 있어서,In the nozzle 200 for spraying the fluid into the furnace 100 by supplying the fluid or steam to the two flexible (FX) (FX '), 후렉시블(FX)(FX')이 결합된 노즐외통(5)의 전방에는 로(100) 내부로 분무된 유체를 분사시키는 노즐팁(7)을 결합시키고, 상기 노즐외통(5)의 외측에 끼워진 노즐보스(4)는 고정볼트(6)로 고정시키되 노즐보스(4)에는 경사면(A)을 형성시키며, 상기 노즐팁(7)이 끼워지는 로(100)에는 로 후렌지(2)를 형성시켜 탈착용 후렌지(3)를 결합시키되 상기 탈착용 후렌지(3)에 경사면(B)을 형성시키는 것을 특징으로 하는 무촉매 반응설비 시스템의 환원제 분사노즐.In front of the nozzle (5) coupled to the flexible (FX) (FX ') is coupled to the nozzle tip (7) for injecting the sprayed fluid into the furnace 100, and fitted to the outside of the nozzle (5) The nozzle boss 4 is fixed to the fixing bolt 6, but the inclined surface A is formed on the nozzle boss 4, and the furnace flange 2 is formed on the furnace 100 into which the nozzle tip 7 is fitted. Reducing agent injection nozzle of the non-catalytic reaction system, characterized in that for forming the inclined surface (B) in the detachable Hurenji (3) coupled to the removable Hurenji (3). 제8항에 있어서, 경사면(A)(B)은 각기 대향되는 각도로 경사각도를 형성하여 노즐(200)이 로(100)에 결합될 때 탈착용 후렌지(3)와 노즐 보스(4)가 경사면(A)(B)을 타고 결합되게 하는 것을 특징으로 하는 무촉매 반응설비 시스템의 환원제 분사노즐.The inclined surfaces (A) and (B) respectively form inclined angles at opposite angles, so that the removable flange 3 and the nozzle boss 4 are formed when the nozzle 200 is coupled to the furnace 100. Reducing agent injection nozzle of the non-catalytic reaction system, characterized in that coupled to ride on the slope (A) (B).
KR1020050072015A 2005-08-06 2005-08-06 Reducing agent injection nozzle of selective non-catalytic reduction system KR100549239B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102824842A (en) * 2012-09-06 2012-12-19 浙江百能科技有限公司 Flue gas de-nitrification method for integrally spraying selective non-catalytic reduction agent and additive
KR101523136B1 (en) * 2013-06-28 2015-05-26 한국남부발전 주식회사 Ammonia injection device of denitrification facilities
KR101812630B1 (en) 2016-07-29 2017-12-27 (주)원플랜트 Backflow prevention apparatus of reducing agent spray nozzle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102824842A (en) * 2012-09-06 2012-12-19 浙江百能科技有限公司 Flue gas de-nitrification method for integrally spraying selective non-catalytic reduction agent and additive
KR101523136B1 (en) * 2013-06-28 2015-05-26 한국남부발전 주식회사 Ammonia injection device of denitrification facilities
KR101812630B1 (en) 2016-07-29 2017-12-27 (주)원플랜트 Backflow prevention apparatus of reducing agent spray nozzle

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