JPS6462274A - Smoke pipe type heat exchanger - Google Patents
Smoke pipe type heat exchangerInfo
- Publication number
- JPS6462274A JPS6462274A JP21690287A JP21690287A JPS6462274A JP S6462274 A JPS6462274 A JP S6462274A JP 21690287 A JP21690287 A JP 21690287A JP 21690287 A JP21690287 A JP 21690287A JP S6462274 A JPS6462274 A JP S6462274A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- welding
- joining parts
- smoke pipe
- plates
- 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
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE:To check the occurrence of a leak due to corrosion by performing URANAMI welding of joining parts of a smoke pipe to pipe plates from the gas side to eliminate an unfused part of said joining parts. CONSTITUTION:The upper pipe plate 1, the lower pipe plate 2 projected to the water side and the smoke pipe 3 are sunk deep by prescribed dimensions from the gas side surfaces of the upper and lower pipe plates 1 and 2 and the projected parts of the pipe plates are covered by copper straps 15 from the water side. Then, the joining parts of the upper and lower pipe plates 1 and 2 to the smoke pipe 3 are subjected to the URANAMI welding from the gas side by the TIG welding method under prescribed welding conditions. The upper and lower pipe plates 1 and 2 and the smoke pipe 3 tip are fused by welded zones obtained by this constitution. Accordingly, gaps of the joint joining parts are eliminated and an oxygen concentration cell by hot-water residence, chlorine concentration in hot water, etc., are reduced and an effect to improve corrosion environment is attained. Moreover, the effect to reduce the deterioration of corrosion resistance of the material surface by welding heat with respect to the water side joining parts is attained by circulating back shielding gas through the copper straps 15 at the time of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21690287A JPS6462274A (en) | 1987-08-31 | 1987-08-31 | Smoke pipe type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21690287A JPS6462274A (en) | 1987-08-31 | 1987-08-31 | Smoke pipe type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462274A true JPS6462274A (en) | 1989-03-08 |
Family
ID=16695703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21690287A Pending JPS6462274A (en) | 1987-08-31 | 1987-08-31 | Smoke pipe type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462274A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086437A (en) * | 1973-12-07 | 1975-07-11 | ||
| JPS5469537A (en) * | 1977-11-15 | 1979-06-04 | Hitachi Zosen Corp | Joining method for tube and tube plate in heat exchanger or the like |
-
1987
- 1987-08-31 JP JP21690287A patent/JPS6462274A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086437A (en) * | 1973-12-07 | 1975-07-11 | ||
| JPS5469537A (en) * | 1977-11-15 | 1979-06-04 | Hitachi Zosen Corp | Joining method for tube and tube plate in heat exchanger or the like |
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