GB723867A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- GB723867A GB723867A GB268651A GB268651A GB723867A GB 723867 A GB723867 A GB 723867A GB 268651 A GB268651 A GB 268651A GB 268651 A GB268651 A GB 268651A GB 723867 A GB723867 A GB 723867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hours
- resin
- heating
- plates
- pressure
- 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
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24744—Longitudinal or transverse tubular cavity or cell
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31844—Of natural gum, rosin, natural oil or lac
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
In making a carbon heat-exchanger block such as that described in the parent Specification by assembling grooved carbon plates in a pile, impregnating them with a liquid synthetic or natural resin, and curing the resin, the plates during curing are held together between opposed clamping plates at a pressure sufficient to overcome the tensile stress which would otherwise be set up in the carbon by the pressure of the heat-exchange fluid in the passages in the block when the heat exchanger is in use and to maintain the cemented joints between the plates tight and free from leaks. The assembled carbon plates, lightly clamped between the clamping plates, are first subjected to a vacuum for an hour and then immersed in the liquid resin, to which air pressure of 100 lb. per square inch is applied for 2 hours. The air pressure is released gradually, the body removed and allowed to drain, and the pressure applied by the clamping plates raised to 400-500 lb. per square inch. The resin may be cashew-nut shell resin containing 10 per cent diethyl sulphate as a polymerization catalyst. To reduce its viscosity and facilitate impregnation, it is heated to 70 DEG C. just before use. It is cured by heating the impregnated block in an oven at 80 DEG C. for 24 hours, with cooling at 120 DEG C. for a further 24 hours, and finally heating at 150 DEG C. for another 24 hours. Alternatively, the resin may be made by heating a mixture of equal parts by weight of furfural and furfuryl alcohol with between 0.1 and 0.2 per cent by weight of normal solution of sulphuric acid, neutralizing the mixture with normal caustic-soda solution, cooling it, heating it under reduced pressure to remove water of condensation, and acidifying it with between 0.1 and 0.2 per cent of normal solution of sulphuric acid. It is cured by heating in an oven for 9 hours at 80 DEG C. and for a further three hours at 150 DEG C. Specifications 595,759 and 595,760, [both in Group V], are referred to in the Provisional Specification.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE507751D BE507751A (en) | 1951-02-02 | ||
| GB268651A GB723867A (en) | 1951-02-02 | 1951-02-02 | Heat exchanger |
| US22930651 US2670311A (en) | 1951-02-02 | 1951-06-01 | Method of making a heat exchanger |
| DEC4983A DE883448C (en) | 1951-02-02 | 1951-11-16 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB268651A GB723867A (en) | 1951-02-02 | 1951-02-02 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB723867A true GB723867A (en) | 1955-02-16 |
Family
ID=9744002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB268651A Expired GB723867A (en) | 1951-02-02 | 1951-02-02 | Heat exchanger |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2670311A (en) |
| BE (1) | BE507751A (en) |
| DE (1) | DE883448C (en) |
| GB (1) | GB723867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033538A (en) * | 1956-06-11 | 1962-05-08 | Babcock & Wilcox Co | Fluid heaters |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE493098A (en) * | 1949-01-14 | |||
| DE1102783B (en) * | 1958-01-28 | 1961-03-23 | Steinzeugwarenfabrik Fuer Kana | Tube heat exchanger with tubes made of graphite |
| US3084060A (en) * | 1960-04-25 | 1963-04-02 | Nat Res Corp | Process of coating a refractory body with boron nitride and then reacting with aluminum |
| US3245674A (en) * | 1960-04-25 | 1966-04-12 | Nat Res Corp | Crucible coated with reaction product of aluminum and boron nitride coating |
| GB1115988A (en) * | 1965-11-03 | 1968-06-06 | Herbert Fernyhough Maddocks | Improvements in heat exchangers |
| US4201263A (en) * | 1978-09-19 | 1980-05-06 | Anderson James H | Refrigerant evaporator |
| DE3201156A1 (en) * | 1982-01-15 | 1983-07-28 | Osrodek Badawczo-Rozwojowy Przemysłu Budowy Urządzen Chemicznych CEBEA, Kraków | Block heat exchanger |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1725797A (en) * | 1928-06-15 | 1929-08-27 | Harvel Corp | Cashew-nut-shell oil condenser product and process for making same |
| US1834895A (en) * | 1931-04-24 | 1931-12-01 | Gen Electric | Laminated wood product |
| US2174886A (en) * | 1936-09-23 | 1939-10-03 | Nat Carbon Co Inc | Plastic resinous cement |
| US2471600A (en) * | 1944-11-29 | 1949-05-31 | Haveg Corp | Method of making furfuryl alcohol resinous products and the product |
| US2391351A (en) * | 1945-01-08 | 1945-12-18 | Continental Can Co | Apparatus for testing cans for leaks |
| US2403897A (en) * | 1945-06-13 | 1946-07-16 | Sheffield Corp | Leakage gauging device |
| US2512230A (en) * | 1947-02-07 | 1950-06-20 | C D Patents Ltd | Joining of carbon bodies to other bodies |
-
0
- BE BE507751D patent/BE507751A/xx unknown
-
1951
- 1951-02-02 GB GB268651A patent/GB723867A/en not_active Expired
- 1951-06-01 US US22930651 patent/US2670311A/en not_active Expired - Lifetime
- 1951-11-16 DE DEC4983A patent/DE883448C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033538A (en) * | 1956-06-11 | 1962-05-08 | Babcock & Wilcox Co | Fluid heaters |
Also Published As
| Publication number | Publication date |
|---|---|
| US2670311A (en) | 1954-02-23 |
| DE883448C (en) | 1953-07-16 |
| BE507751A (en) | 1900-01-01 |
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