JPS55162329A - Preventing method for vibration of injection pipe for denitrification agent - Google Patents
Preventing method for vibration of injection pipe for denitrification agentInfo
- Publication number
- JPS55162329A JPS55162329A JP7060079A JP7060079A JPS55162329A JP S55162329 A JPS55162329 A JP S55162329A JP 7060079 A JP7060079 A JP 7060079A JP 7060079 A JP7060079 A JP 7060079A JP S55162329 A JPS55162329 A JP S55162329A
- Authority
- JP
- Japan
- Prior art keywords
- injection pipe
- denitrification agent
- pipe
- cooling water
- vibration
- 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
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To prevent the vibration of an injection pipe for a denitrification agent to a boiler, etc. by a mechanism wherein the injection pipe is suspended from a boiler stand while an injection pipe for cooling water for supplying the cooling water to the injection pipe is connected to a lower end portion of the injection pipe for the denitrification agent, in a supporting method for the injection pipe for the denitrification agent.
CONSTITUTION: An injection pipe 7 for a denitrification agent is located in space 8 in a secondary superheater tube group, and atomizes the denitrification agent NH3 from its nozzle. A feed pipe 12 for cooling water cooresponds the variation of the elongation of the injection pipe and prevents the generation of thermal stress because length between a metal fitting 15, a fixing portion at the boiler wall side, and a connecting portion 22 at a lower end of the injection pipe 7 is sufficiently made long. The feed pipe 12 for the cooling water is further connected to the connecting portion 22 at the lower end of the injection pipe 7 through a gas passage in a clearance between steam pipe panels, such as secondary superheater panels 3a. Thus, the variation of the elongation of the injection pipe is prevented, and an opportunity causing vibration to the injection pipe can also be eliminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7060079A JPS55162329A (en) | 1979-06-07 | 1979-06-07 | Preventing method for vibration of injection pipe for denitrification agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7060079A JPS55162329A (en) | 1979-06-07 | 1979-06-07 | Preventing method for vibration of injection pipe for denitrification agent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55162329A true JPS55162329A (en) | 1980-12-17 |
Family
ID=13436211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7060079A Pending JPS55162329A (en) | 1979-06-07 | 1979-06-07 | Preventing method for vibration of injection pipe for denitrification agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55162329A (en) |
-
1979
- 1979-06-07 JP JP7060079A patent/JPS55162329A/en active Pending
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