DE3605541C2 - - Google Patents
Info
- Publication number
- DE3605541C2 DE3605541C2 DE19863605541 DE3605541A DE3605541C2 DE 3605541 C2 DE3605541 C2 DE 3605541C2 DE 19863605541 DE19863605541 DE 19863605541 DE 3605541 A DE3605541 A DE 3605541A DE 3605541 C2 DE3605541 C2 DE 3605541C2
- Authority
- DE
- Germany
- Prior art keywords
- flue gas
- gas duct
- lances
- tubes
- steam generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/008—Adaptations for flue gas purification in steam generators
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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
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Description
Die Erfindung betrifft einen zum Eindüsen von Flüssigkeiten oder Gasen in den Rauchgasstrom fossil befeuerten Dampferzeuger geeigneter Rauch gaskanal mit senkrecht zu den Wandungen des Rauchgaskanals eingebauten Lanzen.The invention relates to one for injecting liquids or gases suitable smoke in the flue gas stream fossil-fired steam generator gas duct with built in perpendicular to the walls of the flue gas duct Lances.
Durch die DE-PS 24 11 672 ist ein Verfahren zum Entfernen von Stickstoff monoxid aus sauerstoffhaltigen Verbrennungsabgasen durch selektive Re duktion bekanntgeworden. Bei diesem bekannten Verfahren wird u. a. vor geschlagen, NH3 in die Verbrennungsabgase einzuspritzen. Die erforderliche Reaktion läuft bei Temperaturen zwischen 800 und 1000°C ab.From DE-PS 24 11 672, a method for removing nitrogen monoxide from oxygen-containing combustion gases by selective reduction has become known. In this known method, it is proposed, inter alia, to inject NH 3 into the combustion exhaust gases. The required reaction takes place at temperatures between 800 and 1000 ° C.
Es hat sich leider gezeigt, daß nachher keine geeigneten Einrichtungen entwickelt worden sind, um das vorgeschlagene Verfahren nach dem Patent DE-PS 24 11 672 durchzuführen.Unfortunately, it turned out that afterwards no suitable facilities have been developed using the proposed method according to the patent DE-PS 24 11 672 perform.
Aufgabe der Erfindung ist es daher, eine Einrichtung zu schaffen, die geeignet ist, z. B. gasförmiges NH3 in den Rauchgasstrom eines Dampfer zeugers gemäß dem bekannten Verfahren einzudüsen. Mit der erfindungsgemäßen Einrichtung ist es möglich, im Bereich hoher Temperaturen die zuzugebenden Medien einzudüsen, wobei mit einem Teilstrom des Arbeits mittels des Dampferzeugers die Einrichtung gekühlt wird.The object of the invention is therefore to provide a device which is suitable, for. B. gaseous NH 3 in the flue gas stream of a steamer generator according to the known method. With the device according to the invention, it is possible to inject the media to be added in the region of high temperatures, the device being cooled with a partial flow of work by means of the steam generator.
Diese Aufgabe wird dadurch gelöst, daß die Lanzen aus mindestens zwei Rohren bestehen, die durch Stege so miteinander verbunden sind, daß zwischen ihnen ein beidseitig verschlossener Hohlraum entsteht, in den die einzudüsende Flüssigkeit oder das Gas eingeführt werden und aus dem sie durch Düsenöffnungen in den Stegen in den Rauchgaskanal austreten.This object is achieved in that the lances consist of at least two Pipes exist, which are connected by webs so that a cavity closed on both sides is created between them, into which the liquid or gas to be injected are introduced and from the they exit into the flue gas duct through nozzle openings in the webs.
Ferner sind erfindungsgemäß die Rohre durch Rohrbogen als Haarnadelrohre ausgebildet. Furthermore, according to the invention, the tubes are through tube bends as hairpin tubes educated.
In weiterer Ausbildung der Erfindung sind die Rohre in den Arbeitsmittel strom des Dampferzeugers einbezogen.In a further embodiment of the invention, the tubes are in the work equipment current of the steam generator included.
Zusätzlich sind nach der Erfindung die Lanzen an der dem Eintritt gegen überliegenden Wand des Rauchgaskanals gehaltert.In addition, according to the invention, the lances are against the entry the wall of the flue gas duct.
Schließlich sind nach der Erfindung die Lanzen innerhalb des Rauchgas kanals unterstützt oder an anderen Bauteilen des Dampferzeugers aufge hängt.Finally, according to the invention, the lances are inside the flue gas channel supported or on other components of the steam generator hangs.
Die Erfindung wird anhand der Beschreibung und der Zeichnung näher er läutert. Es zeigtThe invention is based on the description and the drawing he purifies. It shows
Fig. 1 - Querschnitt durch den Rauchgaskanal eines Dampferzeugers im Überhitzerbereich. Fig. 1 - cross section through the flue gas duct of a steam generator in the superheater area.
Fig. 2 - Schnitt A-A in Fig. 1. Fig. 2 - section A-A in Fig. 1.
Fig. 3 bis einschl. 6 - verschiedene Ausführungsformen der Lanze im Querschnitt. Fig. 3 up to and including 6 -. Various embodiments of the lance in cross section.
Die Überhitzerrohrbündel 9 und 10 sind im Rauchgaskanal 1 mit Umfassungs- Rohrwänden 7, die in den Arbeitsmittelstrom des Dampferzeugers einbe zogen sind, angeordnet. Die Umfassungs-Rohrwände 7 des Rauchgaskanals 1 sind mit Öffnungen 8, Halterungen 18 und Abdichtplatten 11 für die waage recht, nebeneinander angeordneten Lanzen 2 versehen. Die Hohlräume 5 der Lanzen 2 sind aus den Rohren 3, den Stegen 4 und den Endplatten 14 bzw. 15 gebildet. Zum Beispiel gasförmiges NH3 wird aus dem Sammler 16 und die Lei tungen 17 in die Hohlräume 5 der Lanzen 2 eingeführt. Das z. B. gasförmige NH3 verläßt die Hohlräume 5 durch die Düsenöffnungen 6 und tritt in den Rauchgaskanal ein. Die Rohre 3 werden dadurch gekühlt, daß sie durch die Sammler 12 und 13 in den Arbeitsmittelstrom des Dampferzeugers einbe zogen sind. The superheater tube bundles 9 and 10 are arranged in the flue gas duct 1 with surrounding tube walls 7 , which are drawn into the working fluid flow of the steam generator. The surrounding pipe walls 7 of the flue gas duct 1 are provided with openings 8 , brackets 18 and sealing plates 11 for the horizontally arranged lances 2 arranged side by side. The cavities 5 of the lances 2 are formed from the tubes 3 , the webs 4 and the end plates 14 and 15 , respectively. For example, gaseous NH 3 is introduced from the collector 16 and the lines 17 into the cavities 5 of the lances 2 . The Z. B. gaseous NH 3 leaves the cavities 5 through the nozzle openings 6 and enters the flue gas duct. The tubes 3 are cooled in that they are drawn by the collectors 12 and 13 into the working fluid flow of the steam generator.
-
Legende
1 Rauchgaskanal
2 Lanzen
3 Rohr
4 Steg
5 Hohlraum
6 Düsenöffnung
7 Umfassungs-Rohrwand
8 Öffnung
9 Überhitzerrohrbündel
10 ÜberhitzrrohrbündelLegend 1 flue gas duct
2 lances
3 pipe
4 bridge
5 cavity
6 nozzle opening
7 surrounding pipe wall
8 opening
9 superheater tube bundles
10 superheat tube bundles
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863605541 DE3605541A1 (en) | 1986-02-21 | 1986-02-21 | Device for injecting liquids or gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863605541 DE3605541A1 (en) | 1986-02-21 | 1986-02-21 | Device for injecting liquids or gases |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3605541A1 DE3605541A1 (en) | 1987-08-27 |
DE3605541C2 true DE3605541C2 (en) | 1988-07-07 |
Family
ID=6294588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863605541 Granted DE3605541A1 (en) | 1986-02-21 | 1986-02-21 | Device for injecting liquids or gases |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3605541A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8709386U1 (en) * | 1987-07-08 | 1988-08-18 | Reining-Heisskühlung, 4330 Mülheim | Device for supplying a fluid-flowing reaction chamber with a second fluid |
DE8803103U1 (en) * | 1988-03-08 | 1988-04-28 | Deutsche Babcock Anlagen Ag, 4200 Oberhausen | Device for injecting a reaction gas into a gas stream |
DE4130348A1 (en) * | 1991-09-12 | 1993-03-18 | Evt Energie & Verfahrenstech | Reductant injection into flue gas stream - using regulated lances arranged in several planes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641296B2 (en) * | 1974-11-11 | 1981-09-28 |
-
1986
- 1986-02-21 DE DE19863605541 patent/DE3605541A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3605541A1 (en) | 1987-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8330 | Complete disclaimer |