JPS5499804A - Superheater for steam generating installation - Google Patents
Superheater for steam generating installationInfo
- Publication number
- JPS5499804A JPS5499804A JP645378A JP645378A JPS5499804A JP S5499804 A JPS5499804 A JP S5499804A JP 645378 A JP645378 A JP 645378A JP 645378 A JP645378 A JP 645378A JP S5499804 A JPS5499804 A JP S5499804A
- Authority
- JP
- Japan
- Prior art keywords
- superheater
- heating tube
- section
- furnace section
- reduced diameter
- 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.)
- Granted
Links
Abstract
PURPOSE: To prevent corrosion of a heating tube of a superheater due to high temperature thereof by constituting the heating tube such that portions thereof at which the temperature of the tube wall gets relatively high have a reduced diameter compared with the remaining portions of the heating tube.
CONSTITUTION: A boiler 1 consists of a furnace section 1A having a spray burner 6 provided thereto, and a superheater 2 to which a set of generating tubes 4 are connected. Combustion causes an ash bed 7 of inorganic salts to be formed on the bottom of the furnace section 1A. The furnace section 1A has a sufficiently large magnitude, compared with a conventional boiler which utilizes fossil fuels, to assure satisfactory evaporation of water and to prevent such inorganic salts from carrying over to a convection heating surface of the superheater 2. Accordingly, gas at the entrance of the superheater is at a low temperature. The superheater 2 extends over the furnace section 1A by way of a nose baffle 5 in order to increase the area of its heating surface. Part of a heating tube 8 positioned at a portion of the superheater 2 which extends from the nose baffle 5 has reduced diameter 8A compared with the remaining part of the heating tube 8 so that flow is accelerated in the reduced diameter section of the heating tube 8 to thereby reduce the temperature of the tube wall of such section of the heating tube 8.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP645378A JPS5499804A (en) | 1978-01-23 | 1978-01-23 | Superheater for steam generating installation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP645378A JPS5499804A (en) | 1978-01-23 | 1978-01-23 | Superheater for steam generating installation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5499804A true JPS5499804A (en) | 1979-08-07 |
JPS627441B2 JPS627441B2 (en) | 1987-02-17 |
Family
ID=11638837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP645378A Granted JPS5499804A (en) | 1978-01-23 | 1978-01-23 | Superheater for steam generating installation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5499804A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62213840A (en) * | 1986-03-14 | 1987-09-19 | Snow Brand Milk Prod Co Ltd | Method for drying microcapsule |
-
1978
- 1978-01-23 JP JP645378A patent/JPS5499804A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS627441B2 (en) | 1987-02-17 |
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