US3189086A - Heat exchanger with concentric flow passageways - Google Patents

Heat exchanger with concentric flow passageways Download PDF

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Publication number
US3189086A
US3189086A US248348A US24834862A US3189086A US 3189086 A US3189086 A US 3189086A US 248348 A US248348 A US 248348A US 24834862 A US24834862 A US 24834862A US 3189086 A US3189086 A US 3189086A
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casing
annular space
inlet
heated
sleeves
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US248348A
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Esser Ludwig Hubert
White Alan James
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METALLURGICAL ENGINEERS Ltd
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METALLURGICAL ENGINEERS Ltd
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    • 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
    • F28D7/10—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 arranged one within the other, e.g. concentrically
    • 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
    • F28D7/06—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 having a single U-bend

Definitions

  • the invention relates to heat exchangers and has among its objects to provide maximum heat transference and high efliciency.
  • a heat exchanger comprises essentially three concentric cylinders mounted to present three adjacent channels, the heating gases being directed through the outermost and innermost channels and the gas to be heated through a channel between the other two channels.
  • a heat exchanger is formed as an upstanding cylindrical casing closed at the top and having a lining of refractory material, outer and inner cylindrical sleeves of large diameter concentrically mounted, and positioned to present a narrow annular space between the inner surface of the refractory lining and the outer cylindricalsleeve, and a narrow annular space between the outer and inner cylindrical sleeves, the heating gas, such as flue gas, passing upwardly through the inner cylindrical sleeve and downwardly through the annular space between the outer cylindrical sleeve and the refractory lining, and the gas to be heated passing upwardly through the narrow annular space between the outer and inner cylindrical sleeves.
  • the heating gas such as flue gas
  • the heat transfer is effected primarily by convection between the outer cylindrical shell and the surrounding refractory wall and by radiation between the hot gas and the inner shell.
  • the overall efficiency of the heat exchanger is therefore higher than in known heat exchangers.
  • the gas to be heated passes from the annular space between the outer and inner cylindrical sleeves to a lateral outlet provided at or near the top of the heatexchanger through a series of radial ports bridging the annular space between the outer cylindrical sleeve and the refractory lining and providing communication between the annular space between the outer and inner cylindrical sleeves and an an nular collecting box in communication with the lateral outlet, the downward flow of the heating gases taking place through intermediate vertical passages provided between the ports.
  • the outer and inner cylindrical sleeves are supported by and secured to, as by welding, a flanged ring secured to the outer casing of the heat exchanger.
  • the radial ports may be formed of a tapering cross-section from top to bottom, to streamline the flow of heating gas past the ports.
  • the invention further comprises the features of construction hereinafter described.
  • FIGURE 1 is a sectional elevation of a heat exchanger constructed according to the invention.
  • FIGURE 2 is a sectional elevation on. an enlarged scale of the top part of the heat exchanger.
  • the heat exchanger may comprise an up standing outer metal casing 1 closed by a domed cap 3 and having a lining 2 of a refractory material, a lateral outlet 4 for the heated gas is provided at the upper part and a lateral inlet 5 for the gas to be heated is provided at the lower part of the heat exchanger. At or near the bottom of the heat exchanger is also provided an outlet 6 for the heating gas.
  • Mounted within the casing 1 are two concentric cylindrical sleeves 7 and 8 spaced a short distance apart, the outer cylinder or sleeve being spaced apart from the inner surface of the refractory lining 2 of the heat exchanger. The two annular spaces so formed provide passages for the flow of the heating gases and cold gases to be heated.
  • the gas to be heated enters the annular space between V the outer and inner cylindrical sleeves through the inlet 5 and passes upwardly to be discharged through radial ports 9 into an annular chamber 10 and thence through the lateral outlet 4 provided in the refractory lining of the heat exchanger.
  • the overall height of the cylindrical shells may be 24 feet; the diameter of the central channel between 3 feet 6 inches and 4 feet 9 inches; the width of the outermost annular channel 2 inches and the width of the intermediate annular channel for the gas to be heated inch to 1 inch. If such a heat exchanger were supplied with heating gas 'at 1150 C. at a rate of 260,000
  • the heating gas such as flue gas
  • the cylindrical sleeves 7 and 8 are supported by a flanged ring 12 which is welded to the ports 9 and secured to the outer casing 1.
  • An annular ring 13 of heat-insulating materal and of substantially triangularsection is secured to the casing 1 to prevent the heated gas from overheating the joint between the outer casing and the domed top.
  • a heat expansion/ contraction joint comprising flexible bellows 14 is provided in the upper end of the heat exchanger for providing a seal between the heated gas outlot and the annular space'adjacent the refractory wall of Similarly at the lower end of the heat exchanger means are provided to provide a seal between the two annuli, such means taking the form of flexible bellows 15 appropriately mounted.
  • the radial ports 9 may be formed to a tapering crosssection from top to bottom as illustrated in FIGURE 2 of the accompanying drawings, whereby the downward flow of heating gas past the ports 9 is streamlined.
  • a heat exchanger comprising:
  • an upstanding cylindrical casing having a lining of refractory mate-rial, said casing having a first inlet communicating with the bottom thereof;
  • outer and inner cylindrical sleeves of large diameter mounted concentrically and spaced a short distance apart to provide a narrow first annular space therebetween, said sleeves being positioned within said casing with said outer sleeve being spaced from the inner sunface of said lining to provide a second annular space therebetween, the first annular space being closed at the top and open at the bottom, means forming a passage between the interior of the inner sleeve and the second annular space at the upper end of the casing, said inner sleeve extending to the bottom of said casing for communication with said first inlet whereby a heated fluid supplied through said first inlet flows upwardly through said inner sleeve and then downwardly through said second annular space;
  • a flanged ring secured to said tubular members and including a portion which extends outwardly and upwardly to be secured between the cap and the casing whereby the sleeves are supported on the casing and the sleeves can be removed from the casing when the cap is removed;
  • a ring of heat insulation material of substantially triangular cross-section disposed between said lining and said portion of said flanged ring above said tubular members to prevent overheating of the joint between the casing and the cap.
  • a heat exchanger comprising:
  • an upstanding cylindrical casing having a lining of refractory material, said casing having a first inlet communicating with the bottom thereof;
  • outer and inner cylindrical sleeves of large diameter mounted concentrically and spaced a short distance apart to provide a narrow first annular space therebetween, said sleeves being positioned within said casing with said outer sleeve being spaced from the inner surface of said lining to provide a second annular space therebetween, the first annular space being closed at the top and open at the bottom, means forming a passage between the interior of the inner sleeve and the second annular space at the upper end of the casing, said inner sleeve extending to the bottom of said casing for communication with said first inlet whereby a heated fluid supplied through said first inlet flows upwardly through said inner sleeve and then downwardly through said second annular space;
  • said casing forming an annular chamber at its upper end communicating with said second outlet whereby fluid entering said annular chamber can flow into said second outlet;
  • tubular members secured to and penetrating said outer sleeve at the upper end thereof and extending radially outwardly therefrom through said second annular space into said annular chamber and being in fluid communication with said annular chamber whereby fluid flowing through said first annular space can exit therefrom into said annular chamber and thence into said second outlet, said tubular members each having a cross-section which tapers in a downward direction to streamline the fiow of heated fluid therepast;
  • wall means for isolating said annular chamber from said second annular space said wall means including a flanged ring secured to said tubular members, said ring having a portion which extends upwardly and outwardly to the upper end of the casing whereby said tubular members and said sleeves are supported on said casing;

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  • 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)

Description

June 15, 1965 L. H. ESSER ETAL 3,189,086
HEAT EXCHANGER WITH CONCENTRIC FLOW PASSAGEWAYS Filed Dec. 31, 1962 2 Sheets-Sheet l INVINTORS LU W/G HUBEBT 5552 y ALA/V JAMES WHITE A TTOE/VE VS HEAT EXCHANGER WITH CONCENTRIC FLOW PASSAGEWAYS Filed Dec'. 51, 1962 2 Sheets-Sheet 2 2 'INVEA-ITORS LUDW/G HUBEQT 55512 By ALAN JAMES WH/TE @WMWW A TTOEN E VS United States Patent On ice 3,189,086 Patented June 15, 1965 3,189,086 HEAT EXCHANGER WITH CONCENTRIC FLOW PASSAGEWAYS Ludwig Hubert Esser, Upton Park, London, and Alan James White, Hayes, England, assignors to Metallurgical Engineers Limited Filed Dec. 31, 1962, Ser. No. 248,348
Claims priority, applications/(gem Britain, Jan. 2, 1962, 2 Claims. (Cl. 165-75) The invention relates to heat exchangers and has among its objects to provide maximum heat transference and high efliciency.
According to the invention there is provided a structure for effecting heat exchange between gases in which the gas to be heated is passed through a first channel which is heated by heated gas flowing in two other channels on each side of said first channel.
According to the invention moreover, a heat exchanger comprises essentially three concentric cylinders mounted to present three adjacent channels, the heating gases being directed through the outermost and innermost channels and the gas to be heated through a channel between the other two channels. I
According to the invention furthermore, a heat exchanger is formed as an upstanding cylindrical casing closed at the top and having a lining of refractory material, outer and inner cylindrical sleeves of large diameter concentrically mounted, and positioned to present a narrow annular space between the inner surface of the refractory lining and the outer cylindricalsleeve, and a narrow annular space between the outer and inner cylindrical sleeves, the heating gas, such as flue gas, passing upwardly through the inner cylindrical sleeve and downwardly through the annular space between the outer cylindrical sleeve and the refractory lining, and the gas to be heated passing upwardly through the narrow annular space between the outer and inner cylindrical sleeves.
Access to the inner cylindrical member to effect repairs can easily be obtained by removing the lid closing the top of the heat exchanger.
Thus in the construction according to the invention the heat transfer is effected primarily by convection between the outer cylindrical shell and the surrounding refractory wall and by radiation between the hot gas and the inner shell. The overall efficiency of the heat exchanger is therefore higher than in known heat exchangers.
According to the invention furthermore, the gas to be heated passes from the annular space between the outer and inner cylindrical sleeves to a lateral outlet provided at or near the top of the heatexchanger through a series of radial ports bridging the annular space between the outer cylindrical sleeve and the refractory lining and providing communication between the annular space between the outer and inner cylindrical sleeves and an an nular collecting box in communication with the lateral outlet, the downward flow of the heating gases taking place through intermediate vertical passages provided between the ports.
According to the invention furthermore, the outer and inner cylindrical sleeves are supported by and secured to, as by welding, a flanged ring secured to the outer casing of the heat exchanger.
According to the invention furthermore, the radial ports may be formed of a tapering cross-section from top to bottom, to streamline the flow of heating gas past the ports.
The invention further comprises the features of construction hereinafter described.
The invention is diagrammatically and non-limitatively illustrated by way of example in the accompanying drawings, in which:
FIGURE 1 is a sectional elevation of a heat exchanger constructed according to the invention, and
FIGURE 2 is a sectional elevation on. an enlarged scale of the top part of the heat exchanger.
In carrying the invention into effect as illustrated in the drawings, the heat exchanger may comprise an up standing outer metal casing 1 closed by a domed cap 3 and having a lining 2 of a refractory material, a lateral outlet 4 for the heated gas is provided at the upper part and a lateral inlet 5 for the gas to be heated is provided at the lower part of the heat exchanger. At or near the bottom of the heat exchanger is also provided an outlet 6 for the heating gas. Mounted within the casing 1 are two concentric cylindrical sleeves 7 and 8 spaced a short distance apart, the outer cylinder or sleeve being spaced apart from the inner surface of the refractory lining 2 of the heat exchanger. The two annular spaces so formed provide passages for the flow of the heating gases and cold gases to be heated.
The gas to be heated enters the annular space between V the outer and inner cylindrical sleeves through the inlet 5 and passes upwardly to be discharged through radial ports 9 into an annular chamber 10 and thence through the lateral outlet 4 provided in the refractory lining of the heat exchanger.
In a typical heat exchanger taken, for example, and without in any way limiting the scope of the invention as claimed, the overall height of the cylindrical shells may be 24 feet; the diameter of the central channel between 3 feet 6 inches and 4 feet 9 inches; the width of the outermost annular channel 2 inches and the width of the intermediate annular channel for the gas to be heated inch to 1 inch. If such a heat exchanger were supplied with heating gas 'at 1150 C. at a rate of 260,000
cubic feet/hour it would heat 130,000 cubic feet/hour the heat exchanger.
of gas from ambient temperature up to 750 C. 7
The heating gas, such as flue gas, enters centrally through the bottom of the heat exchanger, the direction of flow of the gas being reversed at the upper end to cause the fine gasesto pass downwardly through vertical passages between the radial ports 9, through the annular space between the outer cylindrical sleeve 7 and the inner wall of the refractory lining 2, into an annular chamber 11, and thence to pass out laterally through an outlet 6 provided near the bottom of the heat exchanger.
The cylindrical sleeves 7 and 8 are supported by a flanged ring 12 which is welded to the ports 9 and secured to the outer casing 1. An annular ring 13 of heat-insulating materal and of substantially triangularsection is secured to the casing 1 to prevent the heated gas from overheating the joint between the outer casing and the domed top.
A heat expansion/ contraction joint comprising flexible bellows 14 is provided in the upper end of the heat exchanger for providing a seal between the heated gas outlot and the annular space'adjacent the refractory wall of Similarly at the lower end of the heat exchanger means are provided to provide a seal between the two annuli, such means taking the form of flexible bellows 15 appropriately mounted.
The radial ports 9 may be formed to a tapering crosssection from top to bottom as illustrated in FIGURE 2 of the accompanying drawings, whereby the downward flow of heating gas past the ports 9 is streamlined.
We claim:
1. A heat exchanger, comprising:
an upstanding cylindrical casing having a lining of refractory mate-rial, said casing having a first inlet communicating with the bottom thereof;
a cap removably closing the upper end of said casing;
outer and inner cylindrical sleeves of large diameter mounted concentrically and spaced a short distance apart to provide a narrow first annular space therebetween, said sleeves being positioned within said casing with said outer sleeve being spaced from the inner sunface of said lining to provide a second annular space therebetween, the first annular space being closed at the top and open at the bottom, means forming a passage between the interior of the inner sleeve and the second annular space at the upper end of the casing, said inner sleeve extending to the bottom of said casing for communication with said first inlet whereby a heated fluid supplied through said first inlet flows upwardly through said inner sleeve and then downwardly through said second annular space;
means defining a first outlet from said casing adjacent the lower end of said second annular space whereby said heated fluid flowing through said second annular space can be discharged;
means defining a second inlet in said casing communicating with the lower end of said first annular space and isolated from said first inlet and said first outlet whereby a fluid to be heated can be supplied to said first annular space;
means defining a second outlet extending laterally through said casing and communicating with the upper end of said first annular space whereby the fluid to be heated can be discharged from the casing;
a plurality of tubular members secured to and penetrating the outer sleeve at the upper end thereof and extending laterally therefrom;
a flanged ring secured to said tubular members and including a portion which extends outwardly and upwardly to be secured between the cap and the casing whereby the sleeves are supported on the casing and the sleeves can be removed from the casing when the cap is removed; and
a ring of heat insulation material of substantially triangular cross-section disposed between said lining and said portion of said flanged ring above said tubular members to prevent overheating of the joint between the casing and the cap.
2. A heat exchanger, comprising:
an upstanding cylindrical casing having a lining of refractory material, said casing having a first inlet communicating with the bottom thereof;
a cap removably closing the upper end of said casing;
outer and inner cylindrical sleeves of large diameter mounted concentrically and spaced a short distance apart to provide a narrow first annular space therebetween, said sleeves being positioned within said casing with said outer sleeve being spaced from the inner surface of said lining to provide a second annular space therebetween, the first annular space being closed at the top and open at the bottom, means forming a passage between the interior of the inner sleeve and the second annular space at the upper end of the casing, said inner sleeve extending to the bottom of said casing for communication with said first inlet whereby a heated fluid supplied through said first inlet flows upwardly through said inner sleeve and then downwardly through said second annular space;
means defining a first outlet from said casing adjacent the lower end of said second annular space whereby said heated fluid flowing through said second annular space can be discharged;
means defining a second inlet in said casing communicating with the lower end of said first annular space and isolated from said first inlet and said first outlet whereby a fluid to be heated can be supplied to said first annular space;
means defining a second outlet from said casing at the upper end thereof;
said casing forming an annular chamber at its upper end communicating with said second outlet whereby fluid entering said annular chamber can flow into said second outlet;
a plurality of circumferentially spaced tubular members secured to and penetrating said outer sleeve at the upper end thereof and extending radially outwardly therefrom through said second annular space into said annular chamber and being in fluid communication with said annular chamber whereby fluid flowing through said first annular space can exit therefrom into said annular chamber and thence into said second outlet, said tubular members each having a cross-section which tapers in a downward direction to streamline the fiow of heated fluid therepast;
wall means for isolating said annular chamber from said second annular space, said wall means including a flanged ring secured to said tubular members, said ring having a portion which extends upwardly and outwardly to the upper end of the casing whereby said tubular members and said sleeves are supported on said casing;
the flanged ring extending between said cap and said casing whereby said sleeves and said tubular members can be removed from said casing when said cap is removed.
References Cited by the Examiner UNITED STATES PATENTS 2,372,079 3/45 Gunter 165---l41 2,662,749 12/53 Buschow 165141 2,828,946 4/58 Smith l167 2,942,855 6/60 Wellensiek 135 2,991,981 7/61 Andersen 165-141 FOREIGN PATENTS 23,336 10/04 Great Britain. 479,736 2/38 Great Britain. 595,177 9/25 France. 1,059,689 11/53 France.
7,980 1/23 Netherlands.
CHARLES SUKALO, Primary Examiner.
PERCY L. PATRICK, Examiner.

Claims (1)

1. A HEAT EXCHANGER, COMPRISING: AN UPSTANDING CYLINDRICAL CASING HAVING A LINING OF REFRACTORY MATERIAL, SAID CASING HAVING A FIRST INLET COMMUNICATING WITH THE BOTTOM THEREOF; A CAP REMOVABLY CLOSING THE UPPER END OF SAID CASING; OUTER AND INNER CYLINDRICAL SLEEVES OF LARGE DIAMETER MOUNTED CONCENTRICALLY AND SPACED A SHORT DISTANCE APART TO PROVIDE A NARROW FIRST ANNULAR SPACE THEREBETWEEN, SAID SLEEVES BEING POSITIONED WITHIN SAID CASING WITH SAID OUTER SLEEVE BEING SPACED FROM THE INNER SURFACE OF SAID LINEAR TO PROVIDE A SECOND ANNULAR SPACE THEREBTWEEN, THE FIRST ANNULAR SPACE BEING CLOSED AT THE TOP AND OPEN AT THE BOTTOM, MEANS FORMING A PASSAGE BETWEEN THE INTERIOR OF THE INNER SLEEVE AND THE SECOND ANNULAR SPACE AT THE UPPER END OF THE CASING, SAID INNER SLEEVE EXTENDING TO THE BOTTOM OF SAID CASING FOR COMMUNICATING WITH SAID FIRST INLET WHEREBY A HEATED FLUID SUPPLIED THROUGH SAID FIRST INLET FLOWS UPWARDLY THROUGH SAID SECOND SLEEVE AND THEN DOWNWARDLY THROUGH SAID SECOND ANNULAR SPACE; MEANS DEFINING A FIRST OUTLET FROM SAID CASING ADJACENT THE LOWER END OF SAID SECOND ANNULAR SPACE WHEREBY SAID HEATED FLUID FLOWING THROUGH SAID SECOND ANNULAR SPACE CAN BE DISCHARGED; MEANS DEFINING A SECOND INLET IN SAID CASING COMMUNICATING WITH THE LOWER END OF SAID FIRST ANNULAR SPACE AND ISOLATED FROM SAID FIRST INLET AND SAID FIRST OUTLET WHEREBY A FLUID TO BE HEATED CAN BE SUPPLIED TO SAID FIRST ANNULAR SPACE; MEANS DEFINING A SECOND OUTLET EXTENDING LATERALLY THROUGH SAID CASING AND COMMUNICATING WITH THE UPPER END OF SAID FIRST ANNULAR SPACE WHEREBY THE FLUID TO BE HEATED CAN BE DISCAHRGED FROM THE CASING; A PLURALITY OF TUBULAR MEMBERS SECURED TO AND PENETRATING THE OUTER SLEEVE AT THE UPPER END THEREOF AND EXTENDING LATERALLY THEREFROM; A FLANGED RING SECURED TO SAID TUBULAR MEMBERS AND INCLUDING A PORTION WHICH EXTENDS OUTWARDLY AND UPWARDLY TO BE SECURED BETWEEN THE CAP AND THE CASING WHEREBY THE SLEEVES ARE SUPPORTED ON THE CASING AND THE SLEEVES CAN BE REMOVED FROM THE CASING AND THE CAP IS REMOVED; AND A RING OF HEAT INSULATION MATERIAL OF SUBSTANTIALLY TRIANGULAR CROSS-SECTION DISPOSED BETWEEN SAID LINING AND SAID PORTION OF SAID FLANGED RING ABOVE SAID TUBULAR MEMBERS TO PREVENT OVERHEATING OF THE JOINT BETWEEN THE CASING AND THE CAP.
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317223A (en) * 1964-09-28 1967-05-02 Air Preheater Multiple expansion joint
US3346042A (en) * 1965-10-13 1967-10-10 Gen Ionics Corp Radiation recuperator
US3407870A (en) * 1966-11-07 1968-10-29 Braune Rudolf Ernst Recuperative type heat exchanger
US3446279A (en) * 1967-07-05 1969-05-27 American Schack Co Air-cooled radiation recuperator
US3830288A (en) * 1969-01-23 1974-08-20 Laing Nikolaus Insulating casing for storage heaters
US3859040A (en) * 1973-10-11 1975-01-07 Holcroft & Co Recuperator for gas-fired radiant tube furnace
US3955552A (en) * 1974-04-18 1976-05-11 Heat Research Corporation Heater for large flows at low pressure losses
US3965885A (en) * 1974-04-18 1976-06-29 Heat Research Corporation Heater for large flows at low pressure losses
US4377552A (en) * 1978-12-12 1983-03-22 Novatome Nuclear reactor exchanger
US20110192570A1 (en) * 2007-04-05 2011-08-11 Honeywell International Inc. Heat exchanger with telescoping expansion joint
CN102226529A (en) * 2011-05-26 2011-10-26 北京京诚凤凰工业炉工程技术有限公司 Sleeve type metal radiation heat exchanger
US9067289B2 (en) 2007-04-05 2015-06-30 Honeywell International Inc. Heat exchanger with telescoping expansion joint
US10228190B2 (en) * 2014-12-11 2019-03-12 Fulton Group N.A., Inc. Ribbed tubeless heat exchanger for fluid heating systems including a rib component and methods of manufacture thereof
US10240813B2 (en) 2014-12-11 2019-03-26 Fulton Group N.A., Inc. Fully-wetted, refractory-free tubeless fluid heating system with negligible thermal expansion stress

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578443A (en) * 1976-12-24 1980-11-05 Shell Int Research Apparatus for producing a gaseous fuel from finely divided solid or liquid fuels

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GB190423336A (en) * 1904-10-29 1905-09-28 Herbert Edward Burgess Improvements in Condensers
FR595177A (en) * 1925-03-16 1925-09-28 Oil cooler-heater
GB479736A (en) * 1937-07-06 1938-02-10 New Engine Company Ltd Improvements in tubular heat exchangers adapted for use in external combustion engines employing a permanent gas as the working medium
US2372079A (en) * 1941-04-19 1945-03-20 American Locomotive Co Heat exchanger
US2662749A (en) * 1949-01-21 1953-12-15 Hydrocarbon Research Inc Annular flow heat exchanger
FR1059689A (en) * 1952-07-11 1954-03-26 Wesper Improvements to heat exchangers
US2828946A (en) * 1954-12-29 1958-04-01 Du Pont Air heater
US2942855A (en) * 1955-08-17 1960-06-28 Rekuperator K G Dr Ing Schack Recuperator
US2991981A (en) * 1956-10-19 1961-07-11 Hoechst Ag Cyclones

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Publication number Priority date Publication date Assignee Title
NL7980C (en) *
GB190423336A (en) * 1904-10-29 1905-09-28 Herbert Edward Burgess Improvements in Condensers
FR595177A (en) * 1925-03-16 1925-09-28 Oil cooler-heater
GB479736A (en) * 1937-07-06 1938-02-10 New Engine Company Ltd Improvements in tubular heat exchangers adapted for use in external combustion engines employing a permanent gas as the working medium
US2372079A (en) * 1941-04-19 1945-03-20 American Locomotive Co Heat exchanger
US2662749A (en) * 1949-01-21 1953-12-15 Hydrocarbon Research Inc Annular flow heat exchanger
FR1059689A (en) * 1952-07-11 1954-03-26 Wesper Improvements to heat exchangers
US2828946A (en) * 1954-12-29 1958-04-01 Du Pont Air heater
US2942855A (en) * 1955-08-17 1960-06-28 Rekuperator K G Dr Ing Schack Recuperator
US2991981A (en) * 1956-10-19 1961-07-11 Hoechst Ag Cyclones

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317223A (en) * 1964-09-28 1967-05-02 Air Preheater Multiple expansion joint
US3346042A (en) * 1965-10-13 1967-10-10 Gen Ionics Corp Radiation recuperator
US3407870A (en) * 1966-11-07 1968-10-29 Braune Rudolf Ernst Recuperative type heat exchanger
US3446279A (en) * 1967-07-05 1969-05-27 American Schack Co Air-cooled radiation recuperator
US3830288A (en) * 1969-01-23 1974-08-20 Laing Nikolaus Insulating casing for storage heaters
US3859040A (en) * 1973-10-11 1975-01-07 Holcroft & Co Recuperator for gas-fired radiant tube furnace
US3955552A (en) * 1974-04-18 1976-05-11 Heat Research Corporation Heater for large flows at low pressure losses
US3965885A (en) * 1974-04-18 1976-06-29 Heat Research Corporation Heater for large flows at low pressure losses
US4377552A (en) * 1978-12-12 1983-03-22 Novatome Nuclear reactor exchanger
US20110192570A1 (en) * 2007-04-05 2011-08-11 Honeywell International Inc. Heat exchanger with telescoping expansion joint
US8393382B2 (en) * 2007-04-05 2013-03-12 Honeywell International, Inc. Heat exchanger with telescoping expansion joint
US9067289B2 (en) 2007-04-05 2015-06-30 Honeywell International Inc. Heat exchanger with telescoping expansion joint
CN102226529A (en) * 2011-05-26 2011-10-26 北京京诚凤凰工业炉工程技术有限公司 Sleeve type metal radiation heat exchanger
CN102226529B (en) * 2011-05-26 2013-02-13 北京京诚凤凰工业炉工程技术有限公司 Sleeve type metal radiation heat exchanger
US10228190B2 (en) * 2014-12-11 2019-03-12 Fulton Group N.A., Inc. Ribbed tubeless heat exchanger for fluid heating systems including a rib component and methods of manufacture thereof
US10240813B2 (en) 2014-12-11 2019-03-26 Fulton Group N.A., Inc. Fully-wetted, refractory-free tubeless fluid heating system with negligible thermal expansion stress
US11441846B2 (en) * 2014-12-11 2022-09-13 Fulton Group N.A., Inc. Tubeless heat exchanger for fluid heating systems
US20230017453A1 (en) * 2014-12-11 2023-01-19 Fulton Group N.A., Inc. Ribbed tubeless heat exchanger for fluid heating systems including a rib component and methods of manufacture thereof
US11835302B2 (en) * 2014-12-11 2023-12-05 Fulton Group N.A., Inc. Tubeless heat exchanger for fluid heating systems

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