GB628624A - Metalic tubing for heat exchangers - Google Patents
Metalic tubing for heat exchangersInfo
- Publication number
- GB628624A GB628624A GB897/47A GB89747A GB628624A GB 628624 A GB628624 A GB 628624A GB 897/47 A GB897/47 A GB 897/47A GB 89747 A GB89747 A GB 89747A GB 628624 A GB628624 A GB 628624A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- envelope
- tube
- jan
- good
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
628,624. Tubes for air and gas heating stoves. AKT.-GES. FUR TECHNISCHE STUDIEN. Jan 10, 1947, No .897. Convention date, Jan. 14, 1946. [Class 64(i)] A metallic heat transfer tube, for use in heaters for gases under pressure in which the temperature of the tube walls is 1,000‹F. or higher and the stress in the metal of the tube walls is 2,500-5,000 lbs./ sq. in., comprises a stress resisting core 6 of an alloy steel (such as stainless steel) having good creep resistance and also a thin envelope 9 composed of an alloy steel (e.g. containing 20-30 per cent chromium) having good resistance to the corrosive effects of slag and combustion gases. Furthermore, the envelope is not united with the core but is in close contact with it at atmospheric temperatures and has a coefficient of thermal expansion materially lower than that of the core 6 so that at operating temperatures it is stressed and good heat transfer is assured. The envelope may be strip-wrapped around the core and locked at its edges in a longitudinal seam (not shown) or may, as shown, be a strip 9 helically wound with a slight overlap 11 at the edges and preferably tack-welded to itself at intervals as at 12 to accommodate minor flexures of the core. The envelope strips are approximately 0.01 in. in' thickness and may be replaced, if burnt out, without removal of the tube 6. Specification 468,287, [Group XXVI], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US628624XA | 1946-01-14 | 1946-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB628624A true GB628624A (en) | 1949-09-01 |
Family
ID=22045323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB897/47A Expired GB628624A (en) | 1946-01-14 | 1947-01-10 | Metalic tubing for heat exchangers |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE470317A (en) |
| FR (1) | FR937690A (en) |
| GB (1) | GB628624A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1093766B (en) * | 1955-05-06 | 1960-12-01 | Haut Rhin Manufacture Machines | Method of making a flexible pipe |
-
0
- BE BE470317D patent/BE470317A/xx unknown
-
1946
- 1946-12-28 FR FR937690D patent/FR937690A/en not_active Expired
-
1947
- 1947-01-10 GB GB897/47A patent/GB628624A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE470317A (en) | |
| FR937690A (en) | 1948-08-24 |
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