US3513908A - Embedded tube heat exchanger - Google Patents
Embedded tube heat exchanger Download PDFInfo
- Publication number
- US3513908A US3513908A US661572A US3513908DA US3513908A US 3513908 A US3513908 A US 3513908A US 661572 A US661572 A US 661572A US 3513908D A US3513908D A US 3513908DA US 3513908 A US3513908 A US 3513908A
- Authority
- US
- United States
- Prior art keywords
- fluid
- circuit
- heat exchanger
- cylinder
- tube heat
- 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 - Lifetime
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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
- 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
- F28D7/02—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 the conduits being helically coiled
- F28D7/024—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 the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/18—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes sintered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
- Y10S165/40—Shell enclosed conduit assembly
- Y10S165/401—Shell enclosed conduit assembly including tube support or shell-side flow director
- Y10S165/405—Extending in a longitudinal direction
- Y10S165/406—Helically or spirally shaped
Definitions
- This invention pertains to the art of transferring heat energy from one fluid substance to another by passing the first such fluid substance through the second.
- a further object of this invention is to provide a helically curved obstruction in the path of fluid flow in one of the fluid circuits of a heat exchanger such that the curvature of such obstruc- United States Patent 3,513,908 Patented May 26, 1970 "ice tion will provide maximum turbulence without a substantial pressure drop within the circuit.
- FIG. 1 is a cross sectional view of the heat exchanger incorporating a form of the invention.
- FIG. 2 is a cross sectional view taken along the line 22 of FIG. 1.
- FIG. 3 is a perspective view of the helically ribbed core removed from the heat exchanger.
- FIG. 1 shows a first fluid circuit 16 having inlet 5, continuous coils 4, and outlet 6.
- FIG. 1 also shows a second circuit 17 comprising inlet 8, outlet 9, an inner cylinder 15 with solid end walls 10 (through which inlet 8 opens) and 11 and porous side walls 3 in which the coils of circuit 16 are located; and an outer cylinder 14 with solid side walls 1 and solid ends 13 (through which inlet 8 extends into cylinder 15) and 12 (through which outlet 9 extends from cylinder 14).
- ribbed core 18 consisting of longitudinal shaft 19 from which radially project longitudinal ribs 7.
- Each such rib is formed as a helix longitudinally of shaft 19, preferably having 10 of curvature for each inch of shaft length.
- Side wall 3 is composed of a porous substance, preferably sintered metallic particles of nickel plated copper having a high resistance to corrosion. Turbulent flow of fluid from ribs 7 enters side wall 3 in random directions. This results in a continuous penetration of said fluid into substantially all of the spaces between particles in wall 3 enabling the conducting properties of said wall 3 to act in exchanging heat with the passing fluid to a maximum extent.
- this heat exchanger is readily adaptable for manufacture with varying circuits proximate to each other, and with alternate devices for positioning ribs within such circuits, or at least one such circuit, to produce the necessary turbulence.
- any porous substances which have suitable properties of heat conduction may be substituted for sintered metallic particles described above. While I have illustrated a preferred embodiment of the invention, many other modifications may be made without departing from its spirit.
- a first closed circuit having tubes wound in the form of a coil with exposed surfaces embedded within a layer of finely divided metallic sintered nickel plated copper particles forming the wall of a cylinder having an opening for introduction of a fluid
- deflector means in said second circuit within said cylinder and adjacent the exposed surfaces of said cylinder wall comprising a core with helical ribs fixed thereto arranged along its longitudinal axis in the form of a spiral in which each such rib has a curvature of 10 for each inch of length.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
May 26, 1970 G. B. SINGH EMBEDDED TUBE HEAT EXCHANGER Filed Aug. 18, 1967 INVENTOR GURU B. SINGH WM Ill ll/f ATTORNEY 3,513,908 EMBEDDED TUBE HEAT EXCHANGER Guru B. Singh, 6329 31st Ave., Kenosha, Wis. 53140 Filed Aug. 18, 1967, Ser. No. 661,572
Int. Cl. FlSd 1/02; F28f 13/06 US. Cl. 165-109 1 Claim ABSTRACT OF THE DISCLOSURE A device for transferring heat between a portion of the exterior walls and adjacent conductor surfaces of a first circuit enclosed within a second circuit. Increased contact of fluid in the second circuit with the exterior walls and adjacent conductor surfaces of said first circuit results from surrounding the enclosed portion of the first circuit with a porous substance consisting of a layer of finely divided metallic particles. To overcome the tendency of fluid thus restricted to establish fixed passages when flowing between such metallic particles, a core having helically arranged radial ribs is inserted to interrupt the laminar fluid flow just prior to entry of such fluid into such particles.
BACKGROUND OF THE INVENTION Field of the invention This invention pertains to the art of transferring heat energy from one fluid substance to another by passing the first such fluid substance through the second.
Description of prior art The art of positioning one section of a first conduit within a second conduit such that fluid flowing through the first will gain or lose heat from or to the second, is well known. It is also well known that some means for transforming laminar flow through the second circuit to a turbulent flow substantially increases the heat transfer efliciency of the exchanger. Such increase in efliciency is attributable to the increased number of particles of a second circuit fluid which are brought into proximity with the walls of the first circuit. Use of a granular substance having a great number of granules and corresponding interstices to surround the first circuit creates multiple avenues through which second circuit fluid flows, thereby breaking up laminar flow. However, the improvement in efficiency of heat exchange resulting from introduction of such multiple avenues is limited inasmuch as the newly created multiple avenues become fixed and maximum turbulence is not produced. It is apparent that the need is for means for approaching completely random motion of the fluid through the interstices in order that maximum contact between units of second circuit fluid and the walls of the first circuit and conductor surfaces adjacent thereto, will result.
SUMMARY OF THE INVENTION The foregoing background illustrates the state of the heat exchanger art at the time of the applicants instant invention. Through such invention means is provided for directing fluid through a series of small passages in a medium surrounding a completely separate fluid circuit, such that the passages followed by such fluid are con stantly changing in a random pattern producing maximum turbulence in the fluid flow. The production of maximum turbulence in such flow constitutes the principal object of this invention. A further object of this invention is to provide a helically curved obstruction in the path of fluid flow in one of the fluid circuits of a heat exchanger such that the curvature of such obstruc- United States Patent 3,513,908 Patented May 26, 1970 "ice tion will provide maximum turbulence without a substantial pressure drop within the circuit.
In the attached drawings and following description, the best mode presently contemplated for carrying out the invention is set forth. The manner and process of making and using the invention is described below in such full, clear and concise and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the invention. It should be emphasized, however, that the subject matter regarded as the invention is not limited solely to the here described embodiment of it, but rather includes everything falling within the claims set forth at the conclusion of this specification.
FIG. 1 is a cross sectional view of the heat exchanger incorporating a form of the invention.
FIG. 2 is a cross sectional view taken along the line 22 of FIG. 1.
FIG. 3 is a perspective view of the helically ribbed core removed from the heat exchanger.
Referring now to the drawings in detail, FIG. 1 shows a first fluid circuit 16 having inlet 5, continuous coils 4, and outlet 6. FIG. 1 also shows a second circuit 17 comprising inlet 8, outlet 9, an inner cylinder 15 with solid end walls 10 (through which inlet 8 opens) and 11 and porous side walls 3 in which the coils of circuit 16 are located; and an outer cylinder 14 with solid side walls 1 and solid ends 13 (through which inlet 8 extends into cylinder 15) and 12 (through which outlet 9 extends from cylinder 14).
Inside cylinder 15 is ribbed core 18 consisting of longitudinal shaft 19 from which radially project longitudinal ribs 7. Each such rib is formed as a helix longitudinally of shaft 19, preferably having 10 of curvature for each inch of shaft length. As fluid in closed fluid circuit 17 enter inlet 8, laminar flow is altered by the effect of ribs 7 and shaft 19 such that turbulence is created prior to entry of the fluid into side wall 3 of cylinder 15. Side wall 3 is composed of a porous substance, preferably sintered metallic particles of nickel plated copper having a high resistance to corrosion. Turbulent flow of fluid from ribs 7 enters side wall 3 in random directions. This results in a continuous penetration of said fluid into substantially all of the spaces between particles in wall 3 enabling the conducting properties of said wall 3 to act in exchanging heat with the passing fluid to a maximum extent.
After penetration of the pores in wall 3, fluid in circuit 17 passes into space 2 and leaves cylinder 14 through outlet 9.
It will be observed from the foregoing description that this heat exchanger is readily adaptable for manufacture with varying circuits proximate to each other, and with alternate devices for positioning ribs within such circuits, or at least one such circuit, to produce the necessary turbulence. Likewise, use of any porous substances which have suitable properties of heat conduction may be substituted for sintered metallic particles described above. While I have illustrated a preferred embodiment of the invention, many other modifications may be made without departing from its spirit.
Accordingly, I do not wish to be limited to the precise details of construction set forth, but desire to avail myself of all embodiments which are reasonably covered by the appended claim.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is:
1. In a heat exchanger, the combination of:
a first closed circuit having tubes wound in the form of a coil with exposed surfaces embedded within a layer of finely divided metallic sintered nickel plated copper particles forming the wall of a cylinder having an opening for introduction of a fluid,
a first fluid for flow within said first closed circuit,
a second closed circuit entirely enclosing the exposed surfaces of said coil and said cylinder wall such that interstices in said cylinder wall comprise the sole communication between two lateral sections of said second closed circuit,
a second fluid -for flow within said second closed circuit,
means for directing the entire fluid flow in said second circuit through said cylinder wall, and
deflector means in said second circuit within said cylinder and adjacent the exposed surfaces of said cylinder wall comprising a core with helical ribs fixed thereto arranged along its longitudinal axis in the form of a spiral in which each such rib has a curvature of 10 for each inch of length.
References Cited UNITED STATES PATENTS FOREIGN PATENTS 7/ 1924 Great Britain. 6/ 1938 Great Britain. 7/ 1966 Great Britain.
ROBERT A. OLEARY, Primary Examiner A. W. DAVIS, JR., Assistant Examiner US. Cl. X.R.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66157267A | 1967-08-18 | 1967-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3513908A true US3513908A (en) | 1970-05-26 |
Family
ID=24654165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US661572A Expired - Lifetime US3513908A (en) | 1967-08-18 | 1967-08-18 | Embedded tube heat exchanger |
Country Status (1)
Country | Link |
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US (1) | US3513908A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3704748A (en) * | 1970-02-11 | 1972-12-05 | Ratheon Co | Heat transfer structure |
US3742707A (en) * | 1969-10-25 | 1973-07-03 | Rolls Royce | Gas turbine engines |
US3800985A (en) * | 1971-04-15 | 1974-04-02 | Kenics Corp | System and method for distributing highly viscous molten material |
US4008655A (en) * | 1975-11-17 | 1977-02-22 | Rahman Syed A | Method and apparatus for protecting a double-shelled chimney stack |
US4296539A (en) * | 1978-01-27 | 1981-10-27 | Kobe Steel, Limited | Heat transfer tubing for natural gas evaporator |
EP0121079A1 (en) * | 1983-03-30 | 1984-10-10 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG | Heat exchanger |
WO1988002442A1 (en) * | 1986-10-06 | 1988-04-07 | Aeroquip Gmbh | Fuel cooling heat exchanger |
US4867234A (en) * | 1987-05-02 | 1989-09-19 | Schmidt'sche Heissdampf Gmbh | Heat exchanger |
US5117904A (en) * | 1991-07-15 | 1992-06-02 | Bond William H | Heat exchanger |
WO1996039600A1 (en) * | 1995-06-06 | 1996-12-12 | Erickson Donald C | Coiled tubular diabatic vapor-liquid contactor |
US6250379B1 (en) * | 1994-05-17 | 2001-06-26 | Hde Metallwerk Gmbh | High-speed capillary tube heat exchanger |
US20070034170A1 (en) * | 2005-08-01 | 2007-02-15 | Bradford White Corporation | Water heater with convoluted flue tube |
US20100059205A1 (en) * | 2002-04-29 | 2010-03-11 | Kauppila Richard W | Cooling arrangement for conveyors and other applications |
US20110210482A1 (en) * | 2008-08-29 | 2011-09-01 | Rp Topla Limited | Resin molded body and method for manufacturing the same |
US20150371790A1 (en) * | 2014-06-18 | 2015-12-24 | Eaton Corporation | Electrical switching apparatus, and jumper and associated method therefor |
WO2017020405A1 (en) * | 2015-07-31 | 2017-02-09 | 深圳市贝腾科技有限公司 | Drying and filtering apparatus |
CN106403654A (en) * | 2016-09-30 | 2017-02-15 | 清华大学天津高端装备研究院 | Large-coiler steam generator device with water being fed at upper end |
US20180051934A1 (en) * | 2016-08-16 | 2018-02-22 | Hamilton Sundstrand Corporation | Heat exchangers with multiple flow channels |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB219329A (en) * | 1923-07-18 | 1925-10-19 | Adolf Pfoser | Improvements in or relating to tubular heat-exchange apparatus |
US2061742A (en) * | 1935-05-13 | 1936-11-24 | Gen Refrigeration Corp | Heat interchanger |
GB486248A (en) * | 1937-04-16 | 1938-06-01 | Coventry Radiator & Presswork | Coolers for oils or similar viscous liquids |
US2960114A (en) * | 1957-04-26 | 1960-11-15 | Bell & Gossett Co | Innerfinned heat transfer tubes |
GB1035405A (en) * | 1964-06-15 | 1966-07-06 | Serck Radiators Ltd | Heat exchanger tubes |
US3289756A (en) * | 1964-10-15 | 1966-12-06 | Olin Mathieson | Heat exchanger |
US3306352A (en) * | 1965-02-10 | 1967-02-28 | Curren John Leo | Compact coiled tube heat exchanger |
US3359753A (en) * | 1966-02-16 | 1967-12-26 | Arrow Tools Inc | Air dryer |
-
1967
- 1967-08-18 US US661572A patent/US3513908A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB219329A (en) * | 1923-07-18 | 1925-10-19 | Adolf Pfoser | Improvements in or relating to tubular heat-exchange apparatus |
US2061742A (en) * | 1935-05-13 | 1936-11-24 | Gen Refrigeration Corp | Heat interchanger |
GB486248A (en) * | 1937-04-16 | 1938-06-01 | Coventry Radiator & Presswork | Coolers for oils or similar viscous liquids |
US2960114A (en) * | 1957-04-26 | 1960-11-15 | Bell & Gossett Co | Innerfinned heat transfer tubes |
GB1035405A (en) * | 1964-06-15 | 1966-07-06 | Serck Radiators Ltd | Heat exchanger tubes |
US3289756A (en) * | 1964-10-15 | 1966-12-06 | Olin Mathieson | Heat exchanger |
US3306352A (en) * | 1965-02-10 | 1967-02-28 | Curren John Leo | Compact coiled tube heat exchanger |
US3359753A (en) * | 1966-02-16 | 1967-12-26 | Arrow Tools Inc | Air dryer |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3742707A (en) * | 1969-10-25 | 1973-07-03 | Rolls Royce | Gas turbine engines |
US3704748A (en) * | 1970-02-11 | 1972-12-05 | Ratheon Co | Heat transfer structure |
US3800985A (en) * | 1971-04-15 | 1974-04-02 | Kenics Corp | System and method for distributing highly viscous molten material |
US4008655A (en) * | 1975-11-17 | 1977-02-22 | Rahman Syed A | Method and apparatus for protecting a double-shelled chimney stack |
US4296539A (en) * | 1978-01-27 | 1981-10-27 | Kobe Steel, Limited | Heat transfer tubing for natural gas evaporator |
EP0121079A1 (en) * | 1983-03-30 | 1984-10-10 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG | Heat exchanger |
WO1988002442A1 (en) * | 1986-10-06 | 1988-04-07 | Aeroquip Gmbh | Fuel cooling heat exchanger |
JPH0617665B2 (en) * | 1986-10-06 | 1994-03-09 | アエロクィップ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Heat exchanger for fuel cooling |
US4867234A (en) * | 1987-05-02 | 1989-09-19 | Schmidt'sche Heissdampf Gmbh | Heat exchanger |
US5117904A (en) * | 1991-07-15 | 1992-06-02 | Bond William H | Heat exchanger |
US6250379B1 (en) * | 1994-05-17 | 2001-06-26 | Hde Metallwerk Gmbh | High-speed capillary tube heat exchanger |
WO1996039600A1 (en) * | 1995-06-06 | 1996-12-12 | Erickson Donald C | Coiled tubular diabatic vapor-liquid contactor |
US5713216A (en) * | 1995-06-06 | 1998-02-03 | Erickson; Donald C. | Coiled tubular diabatic vapor-liquid contactor |
US20100059205A1 (en) * | 2002-04-29 | 2010-03-11 | Kauppila Richard W | Cooling arrangement for conveyors and other applications |
US8579014B2 (en) * | 2002-04-29 | 2013-11-12 | Richard W. Kauppila | Cooling arrangement for conveyors and other applications |
US7458341B2 (en) | 2005-08-01 | 2008-12-02 | Bradford White Corporation | Water heater with convoluted flue tube |
US20070034170A1 (en) * | 2005-08-01 | 2007-02-15 | Bradford White Corporation | Water heater with convoluted flue tube |
US20110210482A1 (en) * | 2008-08-29 | 2011-09-01 | Rp Topla Limited | Resin molded body and method for manufacturing the same |
US20150371790A1 (en) * | 2014-06-18 | 2015-12-24 | Eaton Corporation | Electrical switching apparatus, and jumper and associated method therefor |
US9536680B2 (en) * | 2014-06-18 | 2017-01-03 | Eaton Corporation | Electrical switching apparatus, and jumper and associated method therefor |
WO2017020405A1 (en) * | 2015-07-31 | 2017-02-09 | 深圳市贝腾科技有限公司 | Drying and filtering apparatus |
US20180051934A1 (en) * | 2016-08-16 | 2018-02-22 | Hamilton Sundstrand Corporation | Heat exchangers with multiple flow channels |
US11346611B2 (en) * | 2016-08-16 | 2022-05-31 | Hamilton Sundstrand Corporation | Heat exchangers with multiple flow channels |
CN106403654A (en) * | 2016-09-30 | 2017-02-15 | 清华大学天津高端装备研究院 | Large-coiler steam generator device with water being fed at upper end |
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