JPS5628628A - Reducing agent injecting device - Google Patents

Reducing agent injecting device

Info

Publication number
JPS5628628A
JPS5628628A JP10310379A JP10310379A JPS5628628A JP S5628628 A JPS5628628 A JP S5628628A JP 10310379 A JP10310379 A JP 10310379A JP 10310379 A JP10310379 A JP 10310379A JP S5628628 A JPS5628628 A JP S5628628A
Authority
JP
Japan
Prior art keywords
reducing agent
injecting
exhaust gas
pipe
gas flow
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.)
Pending
Application number
JP10310379A
Other languages
Japanese (ja)
Inventor
Shunji Emoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP10310379A priority Critical patent/JPS5628628A/en
Publication of JPS5628628A publication Critical patent/JPS5628628A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE:To mix a reducing agent perfectly and uniformly into an exhaust gas at short mixing distances, in a device of injecting the reducing agent into exhaust gas flow, by disposing injecting pipe groups having injecting nozzles within two or more planes differing with respect to the exhaust gas flow. CONSTITUTION:In the device of injecting NH3 etc. as a reducing agent for removing the NOX etc. in an exhaust gas, a reducing agent (NH3 etc.) header 3 is provided on the outside of the flue 2 for the above-mentioned exhaust gas on the upper stream of the catalyst layer and a reducing agent injecting pipe 3b provided with a plurality of nozzles 3c from the header 3a is inserted onto the plane orthogonal to the flow of the exhaust gas in the flue 2; further another injecting pipe 3b' is disposed on the upper stream side of the pipe 3b. Or it is equally well to position the plane of the above-mentioned plural injecting pipes disposed within the same plane diagonally to the gas flow or otherwise to dispose a U-shaped injecting pipe diagonally to the gas flow. This device makes it possible to uniformly mix the reducing agent at short mixing distances.
JP10310379A 1979-08-15 1979-08-15 Reducing agent injecting device Pending JPS5628628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10310379A JPS5628628A (en) 1979-08-15 1979-08-15 Reducing agent injecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10310379A JPS5628628A (en) 1979-08-15 1979-08-15 Reducing agent injecting device

Publications (1)

Publication Number Publication Date
JPS5628628A true JPS5628628A (en) 1981-03-20

Family

ID=14345282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10310379A Pending JPS5628628A (en) 1979-08-15 1979-08-15 Reducing agent injecting device

Country Status (1)

Country Link
JP (1) JPS5628628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2353704A3 (en) * 2010-02-03 2011-10-26 Babcock & Wilcox Power Generation Group, Inc. Stepped down gas device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367162A (en) * 1976-11-29 1978-06-15 Babcock Hitachi Kk Fluid injection and mixing apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367162A (en) * 1976-11-29 1978-06-15 Babcock Hitachi Kk Fluid injection and mixing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2353704A3 (en) * 2010-02-03 2011-10-26 Babcock & Wilcox Power Generation Group, Inc. Stepped down gas device

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