US3831560A - Coil-type continuous flow heater - Google Patents

Coil-type continuous flow heater Download PDF

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US3831560A
US3831560A US00358999A US35899973A US3831560A US 3831560 A US3831560 A US 3831560A US 00358999 A US00358999 A US 00358999A US 35899973 A US35899973 A US 35899973A US 3831560 A US3831560 A US 3831560A
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combustion chamber
flue gas
coil
burner
disposed
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US00358999A
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H Kuhnlein
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BERTRANS H AG
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BERTRANS H AG
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
    • C10G9/18—Apparatus
    • C10G9/20—Tube furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/165—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using fluid fuel

Definitions

  • ABSTRACT A coil-type continuous flow heater which comprises a combustion chamber, burner means locatedat one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber.
  • the present invention relates to a coil-type continuous flow heater containing a burner and used, for example, for heating organic and inorganic heat-transfer agents to a temperature range of about 200 to 600C.
  • the coil-type continuous flow heater of the present invention comprises a heat-transfer path defined by a single pipe coil wound axially and symmetrically, with the individual pipe windings being in mutual contact with each other so that no gaps exist between said windings.
  • the pipe windings substantially surround the combustion chamber constituting the radiation zone, except for the mouth of the burner and the flue gas outlet which are located at opposite ends of the combustion chamber and coaxially disposed with respect to said chamber and with respect to each other.
  • the heat transfer path is also encompassed by a flue gas casing which forms the convection zone, said flue gas casing being provided with an outlet at the burner side of the apparatus.
  • the heat-transfer path which can consist of single or multiple lap pipe coils is suitably constructed as a hollow cylinder with an outwardly extending conical ceiling and a bottom wall.
  • the heat-transfer agent flows through the pipe coils in the opposite direction to that of the flame in the combustion chamber and in parallel with the flue gases flowing through the flue gas casing disposed outside of the pipe coil.
  • all of the parallelconnected tubes forming said pipe coil have the same length and the same flow-through resistance, even if different large flow-through amounts through the heater are selected.
  • the flue gas casing is suitably surrounded by an air casing which channels an air-flow therethrough substantially parallel to the flow of the flue gases.
  • the film temperature of the heat-transfer agent on the coiled pipe wall which is heated on the inside by radiation and on the outside by convection can be controlled at any point of the heater because of the uniform flow through all pipe sections.
  • the heat absorption is uniform along the flow path in each pipesection. Therefore, an overheating of the system is substantially eliminated, even in the case of an overload or the effect produced by a non-uniform combustion flame.
  • the single FIGURE shows the coil-type continuous flow heater of the present invention.
  • element 1 denotes a pedestal on which is mounted an annular air chamber 2 which is provided with an inlet pipe 2a.
  • the outer wall of the cylindrical air chamber 2 extends in the upward direction and forms an air channel or casing; 3 which is provided on the outside with an insulating layer 4 which extends down to the pedestal.
  • a flue gas shell 5 is disposed at a radial spacing within the air casing 3 and is in communication at the top with an annular flue gas trap 6 disposed within the air casing 3.
  • the flue gas trap is provided with an outlet pipe 6a.
  • the air casing 3 is closed off at the top by an insulating lid 4a.
  • the air feeding elements of the burner 7 are in communication with zones 3a of the air casing 3 disposed above the flue gas trap 6.
  • a multiple-lap pipe coil 8 with mutually contacting pipe windings is radially spaced in the flue gas shell 5. This pipe coil constitutes the heattransportation path in the heater.
  • This single pipe coil 8 which has a cylindrical main body 8a, contains a top section 8b which is conical in shape as it extends in the upward direction and has a cylindrical collar surrounding the inner wall of the flue gas trap 6 encompassing the burner nozzles 7a.
  • the pipe coil 8 also has a bottom section which is conical in shape as it extends in the downward direction and has a central opening 9 axially opposed to the nozzle 7a. This central opening communicates via the distributor channel 10 disposed between the bottom section 80 and the air chamber 2, with the flue gas duct 11 which is disposed between the cylindrical section 8a and the flue gas shell .5. Thus the flue gas duct 11 is in communication with the trap 6 and the flue gas outlet pipe 60.
  • the interior of the pipe coil 8 disposed between the nozzle 7a and the bottom opening 9 fonns the combustion chamber 12 of the heater.
  • the pipe coil 8 which defines a closed combustion chamber 12 which does not contain any gaps, except for the burner mouth and the bottom opening 9, is formed by three parallel-connected tubes 13a, 13b and 13c of equivalent length and substantially identical flow resistance, wound in parallel about the central axis a of the heater.
  • the pipe coil 8 could also comprise only one winding, that is, consist of only a single pipe length, or alternatively, it could have more than three pipe lengths. ln the zone of the flue gas distributor chamber 10, the three pipe lengths 13a, 13b, and 130 terminate in a collector pipe 14 leading through the air chamber 2 in the downward direction to a heattransfer agent inlet pipe 140.
  • This collector pipe extends laterally through the casings and 3 and the insulating layer 4 to a heattransfer medium outlet pipe a.
  • the heat transfer medium flows from the bottom toward the top in three equal streams through the pipe lengths 13a, 13b and 13c, and absorbs heat from the combustion chamber (radiation zone) 12.
  • the hot flue gases pass through the bottom opening 9 into the distributor chamber 10, flow in the upward direction through annular chamber 11 and are conveyed by the trap 6 to the outlet pipe 6a.
  • This conductance of the flue gas not only permits an additional heat transfer to the heat transfer medium, but also prevents undesirable high temperature differences between the inner and the outer sides of the pipe coil 8.
  • the above-described heater could also be disposed horizontally instead of vertically, that is, unless the heattransfer medium must be emptied by the force of gravity.
  • the all-around, no-gap encompassing of the combustion chamber 12 by the pipe coil 8 also insures a uniform exposure of the pipe coil in the radiation zone.
  • a coil-type continuous flow heater which comprises a combustion chamber, burner means located at one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber, said pipe coil means further comprising multiple windings having substantially equal lengths and flow resistances, said multiple windings being connected in parallel and emanating from an inlet collector tube disposed at the flue gas outlet end portion of the combustion chamber and terminating in an outlet collector tube which is disposed at the burner end of the combustion chamber and a flue gas trap disposed at the burner end portion of the combustion chamber and a flue gas distributor chamber disposed at the other end portion of the combustion chamber, said flue gas duct communicating
  • the coil type continuous flow heater of claim 1 wherein the pipe coil means has a cylindrical main body and conical end portions, one of said end portions being adapted to receive the nozzle of the burner means and the other of said end portions containing the flue gas outlet means.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A coil-type continuous flow heater which comprises a combustion chamber, burner means located at one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber.

Description

United States Patent 1191 Kiihnlein 11] 3,831,560 1 Aug. 27, 1974 COIL-TYPE CONTINUOUS FLOW HEATER [75] Inventor: Hans L. Kiihnlein, Fullinsdorf,
21 1 Appl. No.: 358,999
[30] Foreign Application Priority Data 11/1967 Watson et al l22/250 9/1970 Wanson l22/248 Primary Examiner-Kenneth W. Sprague Attorney, Agent, or FirmStewart and Kolasch, Ltd.
[ ABSTRACT A coil-type continuous flow heater which comprises a combustion chamber, burner means locatedat one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber.
I COIL-TYPE CONTINUOUS FLOW HEATER BACKGROUND AND SUMMARY OF THE INVENTION The present invention relates to a coil-type continuous flow heater containing a burner and used, for example, for heating organic and inorganic heat-transfer agents to a temperature range of about 200 to 600C.
Conventional coil heaters which are presently being employed by the industry for heating no-pressure oils at temperatures of up to about 320C. possess the disadvantage that the heat transfer surfaces of the pipe coils are exposed to an uneven load, so that the heattransfer agent is overheated and thus tends to decompose in certain portions of the heat transfer path. This frequently results in a reduction of the flash point of the heat-transfer agent which can lead, among other things, to ruptures in the pipe coils and attendant leakages therefrom.
In addition, in the heater proper, cracking can also occur whereby deposits can be formed therein. As a consequence, the pipecoil as an effective conveying means is destroyed. Thus, a large number of injuries have been attributed to the above prior art problems found in conventional coil heaters.
Accordingly, it is an object of the present invention to provide a heater of the aforementioned type wherein the heat transfer agent is uniformly heated in all zones of the heat-transfer path and wherein the film temperature of the liquid to be heated can be accurately determined.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter; it should be understood, however, that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
The coil-type continuous flow heater of the present invention comprises a heat-transfer path defined by a single pipe coil wound axially and symmetrically, with the individual pipe windings being in mutual contact with each other so that no gaps exist between said windings. The pipe windings substantially surround the combustion chamber constituting the radiation zone, except for the mouth of the burner and the flue gas outlet which are located at opposite ends of the combustion chamber and coaxially disposed with respect to said chamber and with respect to each other. The heat transfer path is also encompassed by a flue gas casing which forms the convection zone, said flue gas casing being provided with an outlet at the burner side of the apparatus.
The heat-transfer path which can consist of single or multiple lap pipe coils is suitably constructed as a hollow cylinder with an outwardly extending conical ceiling and a bottom wall. The heat-transfer agent flows through the pipe coils in the opposite direction to that of the flame in the combustion chamber and in parallel with the flue gases flowing through the flue gas casing disposed outside of the pipe coil. When the pipe coil contains multiple windings, all of the parallelconnected tubes forming said pipe coil have the same length and the same flow-through resistance, even if different large flow-through amounts through the heater are selected. The flue gas casing is suitably surrounded by an air casing which channels an air-flow therethrough substantially parallel to the flow of the flue gases. Because of the overall arrangement of the elements of the flow heater of the present invention, such as for example, the combustion chamber and the heat-transfer path, substantially no heat loss is realized. The film temperature of the heat-transfer agent on the coiled pipe wall which is heated on the inside by radiation and on the outside by convectioncan be controlled at any point of the heater because of the uniform flow through all pipe sections. In the case of a multiple-lap pipe coil, the heat absorption is uniform along the flow path in each pipesection. Therefore, an overheating of the system is substantially eliminated, even in the case of an overload or the effect produced by a non-uniform combustion flame.
BRIEF DESCRIPTION OF THE DRAWING The present invention will become more fully understood from the detailed description hereinbelow and the accompanying drawing which is given by way of illustration only, and thus is not limitative of the present invention and wherein,
the single FIGURE shows the coil-type continuous flow heater of the present invention.
DETAILED DESCRIPTION OF THE INVENTION In the drawing, element 1 denotes a pedestal on which is mounted an annular air chamber 2 which is provided with an inlet pipe 2a. The outer wall of the cylindrical air chamber 2 extends in the upward direction and forms an air channel or casing; 3 which is provided on the outside with an insulating layer 4 which extends down to the pedestal. A flue gas shell 5 is disposed at a radial spacing within the air casing 3 and is in communication at the top with an annular flue gas trap 6 disposed within the air casing 3. The flue gas trap is provided with an outlet pipe 6a. The air casing 3 is closed off at the top by an insulating lid 4a. A burner 7 which extends through a central aperture :in the lid is provided with a downwardly oriented nozzle 7a which is arranged in the central opening of the flue gas trap 6. The air feeding elements of the burner 7 are in communication with zones 3a of the air casing 3 disposed above the flue gas trap 6. A multiple-lap pipe coil 8 with mutually contacting pipe windings is radially spaced in the flue gas shell 5. This pipe coil constitutes the heattransportation path in the heater. This single pipe coil 8, which has a cylindrical main body 8a, contains a top section 8b which is conical in shape as it extends in the upward direction and has a cylindrical collar surrounding the inner wall of the flue gas trap 6 encompassing the burner nozzles 7a. The pipe coil 8 also has a bottom section which is conical in shape as it extends in the downward direction and has a central opening 9 axially opposed to the nozzle 7a. This central opening communicates via the distributor channel 10 disposed between the bottom section 80 and the air chamber 2, with the flue gas duct 11 which is disposed between the cylindrical section 8a and the flue gas shell .5. Thus the flue gas duct 11 is in communication with the trap 6 and the flue gas outlet pipe 60. The interior of the pipe coil 8 disposed between the nozzle 7a and the bottom opening 9 fonns the combustion chamber 12 of the heater.
The pipe coil 8, which defines a closed combustion chamber 12 which does not contain any gaps, except for the burner mouth and the bottom opening 9, is formed by three parallel-connected tubes 13a, 13b and 13c of equivalent length and substantially identical flow resistance, wound in parallel about the central axis a of the heater. However, the pipe coil 8 could also comprise only one winding, that is, consist of only a single pipe length, or alternatively, it could have more than three pipe lengths. ln the zone of the flue gas distributor chamber 10, the three pipe lengths 13a, 13b, and 130 terminate in a collector pipe 14 leading through the air chamber 2 in the downward direction to a heattransfer agent inlet pipe 140. The upper ends of the three pipe lengths 13a, 13b, and 13( forming the collar, terminate in a collector pipe 15 disposed in the flue gas trap 6. This collector pipe extends laterally through the casings and 3 and the insulating layer 4 to a heattransfer medium outlet pipe a.
During the operation of the above-described coiltype continuous flow heater, the heat transfer medium flows from the bottom toward the top in three equal streams through the pipe lengths 13a, 13b and 13c, and absorbs heat from the combustion chamber (radiation zone) 12. The hot flue gases pass through the bottom opening 9 into the distributor chamber 10, flow in the upward direction through annular chamber 11 and are conveyed by the trap 6 to the outlet pipe 6a. This conductance of the flue gas not only permits an additional heat transfer to the heat transfer medium, but also prevents undesirable high temperature differences between the inner and the outer sides of the pipe coil 8. The identical and equally long pipe lengths 13a, 13b, and 130, all of which are exposed to the same thermal load, that is, on the inside of the pipe coil to the radiation zone 12 and on the outside of the pipe coil to the convection zone ll, insure a uniform heating of the heat-transfer medium flowing through each pipe length, in the same quantity, with the same flow through velocity and pressure gradient.
Since the flue gas outlet 9 from the combustion chamber 12 is a relatively narrow, axial opening, the above-described heater could also be disposed horizontally instead of vertically, that is, unless the heattransfer medium must be emptied by the force of gravity. The all-around, no-gap encompassing of the combustion chamber 12 by the pipe coil 8 also insures a uniform exposure of the pipe coil in the radiation zone.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variationsare not to be regarded as a departure from the spirit and scope of the invention. and all such modifications are intended to be included within the scope of the following claims.
It is claimed:
1. A coil-type continuous flow heater which comprises a combustion chamber, burner means located at one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber, said pipe coil means further comprising multiple windings having substantially equal lengths and flow resistances, said multiple windings being connected in parallel and emanating from an inlet collector tube disposed at the flue gas outlet end portion of the combustion chamber and terminating in an outlet collector tube which is disposed at the burner end of the combustion chamber and a flue gas trap disposed at the burner end portion of the combustion chamber and a flue gas distributor chamber disposed at the other end portion of the combustion chamber, said flue gas duct communicating at the burner end portion of the combustion chamber with said flue gas trap and with the flue gas distributor chamber at the other end portion of said combustion chamber.
2. The coil type continuous flow heater of claim 1, wherein the pipe coil means has a cylindrical main body and conical end portions, one of said end portions being adapted to receive the nozzle of the burner means and the other of said end portions containing the flue gas outlet means.
3. The coil type continuous flow heater of claim 2, wherein the pipe coil means forms a collar which surrounds the nozzle of the burner means.
4. The coil type continuous flow heater of claim 1, wherein an air casing is disposed between the flue gas duct and the wall of the combustion chamber, said air casing provided at one end portion of the combustion chamber with air inlet means and terminating at the burner end portion of the combustion chamber in an air chamber which communicates with the air feeding elements of the burner.
5. The coil type continuous flow heater of claim 1, wherein the pipe coil is vertically disposed within the combustion chamber.
6. The coil type continuous flow heater of claim 1, wherein the pipe coil is horizontally disposed within the combustion chamber.

Claims (6)

1. A coil-type continuous flow heater which comprises a combustion chamber, burner means located at one end of the combustion chamber and flue gas outlet means disposed at the other end of said chamber, and pipe coil means substantially lining the combustion chamber, said pipe coil means being coaxially disposed within said chamber so that no gaps exist between the individual coils of said pipe, said pipe coil means also extending a distance from the wall of the combustion chamber so as to define a flue gas duct which is adapted to channel the flue gas from the flue gas outlet means to an outlet means at the burner side of the combustion chamber, said pipe coil means further comprising multiple windings having substantially equal lengths and flow resistances, said multiple windings being connected in parallel and emanating from an inlet collector tube disposed at the flue gas outlet end portion of the combustion chamber and terminating in an outlet collector tube which is disposed at the burner end of the combustion chamber and a flue gas trap disposed at the burner end portion of the combustiOn chamber and a flue gas distributor chamber disposed at the other end portion of the combustion chamber, said flue gas duct communicating at the burner end portion of the combustion chamber with said flue gas trap and with the flue gas distributor chamber at the other end portion of said combustion chamber.
2. The coil type continuous flow heater of claim 1, wherein the pipe coil means has a cylindrical main body and conical end portions, one of said end portions being adapted to receive the nozzle of the burner means and the other of said end portions containing the flue gas outlet means.
3. The coil type continuous flow heater of claim 2, wherein the pipe coil means forms a collar which surrounds the nozzle of the burner means.
4. The coil type continuous flow heater of claim 1, wherein an air casing is disposed between the flue gas duct and the wall of the combustion chamber, said air casing provided at one end portion of the combustion chamber with air inlet means and terminating at the burner end portion of the combustion chamber in an air chamber which communicates with the air feeding elements of the burner.
5. The coil type continuous flow heater of claim 1, wherein the pipe coil is vertically disposed within the combustion chamber.
6. The coil type continuous flow heater of claim 1, wherein the pipe coil is horizontally disposed within the combustion chamber.
US00358999A 1972-09-21 1973-05-10 Coil-type continuous flow heater Expired - Lifetime US3831560A (en)

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CH1390472A CH549762A (en) 1972-09-21 1972-09-21 COIL PIPES - CURRENT HEATERS.

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BR (1) BR7307202D0 (en)
CH (1) CH549762A (en)
DE (1) DE2344188A1 (en)
ES (1) ES418961A1 (en)
FR (1) FR2200486A1 (en)
IT (1) IT998601B (en)
NL (1) NL7311631A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006190A1 (en) * 1993-08-23 1995-03-02 Solinnov Napenergiával Mu^'ködo^' Berendezéseket Hasznosító, Épületkarbantartó Export-Import Kft. Steam generator and steam turbine driving unit for the use of gaseous propellant, especially hydrogen
US20090175988A1 (en) * 2008-01-03 2009-07-09 Iet Combustion Llc Oven
US20090173599A1 (en) * 2008-01-03 2009-07-09 Iet Combustion Llc System and Method for Product Removal
CN102408907A (en) * 2011-09-29 2012-04-11 牛晓璐 Heating method using cracking waste heat and device thereof
US10398148B2 (en) 2008-01-03 2019-09-03 Souhel Khanania Oven
US11346549B2 (en) 2015-12-28 2022-05-31 Souhel Khanania Burner assembly and systems incorporating a burner assembly
US11346548B2 (en) 2015-12-28 2022-05-31 Souhel Khanania Burner assembly and heat exchanger
US11690471B2 (en) 2015-12-28 2023-07-04 Souhel Khanania Cooking system with burner assembly and heat exchanger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8328227U1 (en) * 1983-10-01 1983-12-29 Klöckner Gefi KG, Industrielle Wärmetechnik, 4150 Krefeld CONTINUOUS HEATER FOR WARMING LIQUIDS
JPS63201952U (en) * 1987-06-16 1988-12-27

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237890A (en) * 1940-03-04 1941-04-08 Rolland C Sabins Water heater construction
US3065741A (en) * 1959-10-14 1962-11-27 Gerard George Furnace construction
US3351041A (en) * 1965-05-21 1967-11-07 Mitchell Engineering Ltd Water tube boiler
US3529579A (en) * 1969-04-24 1970-09-22 Leon Jacques Wanson Multitubular boiler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237890A (en) * 1940-03-04 1941-04-08 Rolland C Sabins Water heater construction
US3065741A (en) * 1959-10-14 1962-11-27 Gerard George Furnace construction
US3351041A (en) * 1965-05-21 1967-11-07 Mitchell Engineering Ltd Water tube boiler
US3529579A (en) * 1969-04-24 1970-09-22 Leon Jacques Wanson Multitubular boiler

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006190A1 (en) * 1993-08-23 1995-03-02 Solinnov Napenergiával Mu^'ködo^' Berendezéseket Hasznosító, Épületkarbantartó Export-Import Kft. Steam generator and steam turbine driving unit for the use of gaseous propellant, especially hydrogen
CN1082607C (en) * 1993-08-23 2002-04-10 索利诺夫.N.M.B.H.E.进出口公司 Steam generator and steam turbine driving unit for use gaseous propellant, especially hydrogen
US8201493B2 (en) 2008-01-03 2012-06-19 Souhel Khanania Oven
US20090173599A1 (en) * 2008-01-03 2009-07-09 Iet Combustion Llc System and Method for Product Removal
US8167114B2 (en) 2008-01-03 2012-05-01 Souhel Khanania System and method for product removal
US20090175988A1 (en) * 2008-01-03 2009-07-09 Iet Combustion Llc Oven
US8869971B2 (en) 2008-01-03 2014-10-28 Souhel Khanania System and method for product removal
US10398148B2 (en) 2008-01-03 2019-09-03 Souhel Khanania Oven
US10794598B2 (en) 2008-01-03 2020-10-06 Souhel Khanania Oven
CN102408907A (en) * 2011-09-29 2012-04-11 牛晓璐 Heating method using cracking waste heat and device thereof
US11346549B2 (en) 2015-12-28 2022-05-31 Souhel Khanania Burner assembly and systems incorporating a burner assembly
US11346548B2 (en) 2015-12-28 2022-05-31 Souhel Khanania Burner assembly and heat exchanger
US11690471B2 (en) 2015-12-28 2023-07-04 Souhel Khanania Cooking system with burner assembly and heat exchanger

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NL7311631A (en) 1974-03-25
ES418961A1 (en) 1976-03-01
IT998601B (en) 1976-02-20
FR2200486A1 (en) 1974-04-19
CH549762A (en) 1974-05-31
BR7307202D0 (en) 1974-08-29
DE2344188A1 (en) 1974-04-11
JPS4970002A (en) 1974-07-06

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