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WO2011103410A2 - Heat fins and related systems and methods - Google Patents

Heat fins and related systems and methods Download PDF

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Publication number
WO2011103410A2
WO2011103410A2 PCT/US2011/025415 US2011025415W WO2011103410A2 WO 2011103410 A2 WO2011103410 A2 WO 2011103410A2 US 2011025415 W US2011025415 W US 2011025415W WO 2011103410 A2 WO2011103410 A2 WO 2011103410A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat fin
halves
internal coil
curved portion
pipe
Prior art date
Application number
PCT/US2011/025415
Other languages
French (fr)
Other versions
WO2011103410A3 (en
Inventor
Thomas William Perry
Original Assignee
3Ip, Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 3Ip, Llc filed Critical 3Ip, Llc
Priority to CA2790423A priority Critical patent/CA2790423A1/en
Publication of WO2011103410A2 publication Critical patent/WO2011103410A2/en
Publication of WO2011103410A3 publication Critical patent/WO2011103410A3/en
Priority to US13/589,646 priority patent/US20130048257A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • 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
    • F28D7/106—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 consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • 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
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
    • 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
    • F28F2275/06—Fastening; Joining by welding
    • 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
    • F28F2275/20—Fastening; Joining with threaded elements

Definitions

  • the present invention generally relates to providing heat to product stored in large scale containers.
  • Such an internal coil may comprise a small diameter pipe (2" to 3") installed along the bottom (and sometimes the sides) of a vessel or tank.
  • a heating medium such as, for example, steam, hot water or hot oil, flows through the pipe, thereby causing the pipe to act as a heating element.
  • the heating medium has a higher temperature than the process inside the tank, thereby creating a temperature difference.
  • Q the heat transfer from the heating medium to the process
  • U the overall heat transfer coefficient from the heating medium to the process
  • A is the total surface area of the heating medium against the process
  • dT is the difference in temperature between the heating medium and the process.
  • the product e.g. crude oil
  • the product is normally not completely unsalvageable if the heating medium leaks into the product
  • the cooked on material hinders heat transfer from the heating medium to the process because it has very poor thermal conductivity, as it is comprised of mostly carbon. So, the thermal performance of the coil is diminished over time as the layer grows and eventually requires total replacement of the coil.
  • the present invention includes many aspects and features. Moreover, while many aspects and features relate to, and are described in, the context of providing heat to product stored in large scale containers, the present invention is not limited to use only in this context, as will become apparent from the following summaries and detailed descriptions of aspects, features, and one or more embodiments of the present invention.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the heat fin comprises aluminum.
  • the heat fin comprises carbon steel.
  • the heat fin comprises stainless steel.
  • the heat fin comprises a silicon-based compound.
  • the heat fin comprises a graphite-based compound.
  • the heat fin comprises a high-conductivity polymer.
  • the heat fin is forty feet long.
  • the heat fin is nine feet and six inches long.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion.
  • Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are bolted to one another around the internal coil.
  • the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
  • the system includes a large scale container having product contained therein, an internal coil within the large scale container having a heating medium flowing therethrough, and a heat fin secured to the internal coil.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are bolted to one another around the internal coil.
  • the heat fin increases heat transfer from the heating medium flowing through the internal coil into the product contained in the large scale container.
  • the system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are bolted to one another around the internal coil.
  • a heat transfer compound is disposed in one or more gaps between the internal coil and the heat fin.
  • the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
  • the system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are bolted to one another around the internal coil.
  • Another aspect of the present invention relates to a method of manufacturing a heat fin.
  • the method includes extruding first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion.
  • Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the method includes extruding first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the method further includes cutting each of the first and second halves into nine feet six inch long sections, and shipping each of the first and second halves.
  • the method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the method further includes securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together.
  • the method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the method further includes securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together, and applying a heat transfer compound to one or more gaps between the heat fin and the internal coil.
  • the method includes unsecuring first and second halves of a first heat fin from around an internal coil, each half of the first heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the method further includes partially surrounding the internal coil with each of first and second halves of a second heat fin, each half of the second heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of of the second heat fin.
  • the first and second halves of the second heat fin are configured to be bolted to one another around the internal coil.
  • the method further includes securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
  • the method includes unsecuring first and second halves of a heat fin from around an internal coil, each half of the first heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the method further includes cleaning the heat fin, partially surrounding the internal coil with the first and second halves of the heat fin, and securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion.
  • the first and second halves are configured to be bolted to one another around a pipe.
  • the present invention relates to a system for asphalt tank heating.
  • the system includes a tank containing asphalt, an internal coil disposed within at least partially within the tank having a heating medium flowing therethrough, the internal coil being positioned to heat the asphalt, and a heat fin secured to the internal coil.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are secured to one another around the internal coil.
  • the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into the asphalt contained in the tank.
  • the heat fin includes first and second halves. Each half includes a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be secured to one another around a pipe.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion.
  • Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be secured to one another around a pipe.
  • the system includes a first pipe, and a heat fin secured to the first pipe.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are secured to one another around the pipe.
  • the system further includes a second pipe secured around the outside of the first pipe and heat fin secured therearound.
  • the heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes;
  • the system includes a first pipe, and a heat fin secured to the first pipe.
  • the heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are secured to one another around the pipe.
  • the system further includes a second pipe secured around the outside of the first pipe and heat fin.
  • the heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes.
  • the method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be secured to one another around a pipe.
  • the method further includes securing the heat fin around the internal coil by securing the first and second halves of the heat fin together.
  • the present invention relates to a method.
  • the method includes partially surrounding a first pipe with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of.
  • the first and second halves are configured to be secured to one another around a pipe.
  • the method further includes securing the heat fin around the first pipe by securing the first and second halves of the heat fin together, and securing a second pipe around the outside of the first pipe and heat fin.
  • FIG. 1 is a perspective illustration of a fragmented portion of a first half of a bolt-on heat fin partially surrounding an internal heating coil in accordance with one or more preferred embodiments.
  • FIG. 2 is a cross-sectional schematic view of a heat fin bolted onto a three inch diameter carbon steel pipe.
  • FIG. 3 includes a table which provides a summary of calculations for an exemplary scenario.
  • FIG. 4 illustrates an exemplary single pass heat exchanger utilizing a smaller pipe, a heat fin, and a larger pipe.
  • any sequence(s) and/or temporal order of steps of various processes or methods that are described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal order, the steps of any such processes or methods are not limited to being carried out in any particular sequence or order, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in various different sequences and orders while still falling within the scope of the present invention. Accordingly, it is intended that the scope of patent protection afforded the present invention is to be defined by the appended claims rather than the description set forth herein.
  • a heat fin made from aluminum or other high-conductivity material is configured to be bolted onto an internal heating coil.
  • the heat fin is configured such that, when bolted onto an internal heating coil of a large scale container, it forms an external and removable heat enhancer to increase heat transfer from a heating medium flowing through the internal coil into product contained in the large scale container.
  • FIG. 1 is a perspective illustration of a fragmented portion of a first half 12 of a bolt-on heat fin partially surrounding an internal heating coil 20 in accordance with one or more preferred embodiments.
  • the portion is described as being fragmented because, in at least some preferred implementations, the heat fin will extend substantially the entire length of an internal heating coil it surrounds.
  • heat fins are extruded in approximately forty foot (40') length sections, although in at least some preferred implementations such heat fins may be cut to nine feet six inch (9'6") length sections so as to be shippable overnight by truck or air.
  • the first half 12 is configured to be bolted to a second half 14 of the heat fin such that the heat fin is secured to an internal heating coil, as illustrated in FIG. 2, which is a cross- sectional schematic view of the heat fin bolted onto a three inch (3") diameter (three and a half inch (3.5") nominal) carbon steel pipe. It will be appreciated that although only a single bolt is illustrated in cross-section, bolts likely will be utilized to secure the halves 12,14 together at both top and bottom portions of the halves 12,14 along the length of the halves 12,14.
  • the heat fin is configured to increase the heat transfer area of a coil it is secured to.
  • such a heat fin can increase the total heat transfer of normal pipe internal coils by 600%.
  • Table 1 of FIG. 3 provides a summary of calculations for such exemplary scenario.
  • the total footage of internal coil required to meet a particular thermal duty of an application could be reduced by as much as six (6) times, or possibly even more in some cases. For example, if an internal coil was used to heat asphalt with a very low convection coefficient (1 BTU/hr ft A 2 F), six hundred feet (600') of standard internal coil might be equal to the heating capabilities of one hundred feet (100') of internal coil with a heat fin installed over the internal coil. This would make internal coils much more economical to install and maintain.
  • the bolted'on heat fin can be removed, cleaned and replaced, or removed and replaced entirely.
  • heat fins are extruded, such as, for example, from aluminum, and machined for bolting purposes, although in at least some implementations halves of heat fins may be secured together in some other manner, and may be configured for such securement in some other manner .
  • heat fins are anodized to extend their life under harsh conditions.
  • a heat fin is made from carbon steel, stainless steel, copper, a silicon-based compound, a graphite-based compound, and/or one or more high conductivity polymers or plastics.
  • one or more heat fins are specifically selected and/or designed for a particular application by calculating heat lost through ambient conditions and overcoming such loss by adding enough heat into the process by way of heat fin installation onto internal heating coils.
  • a heat fin may also be selected or designed to meet a specific heat-up requirement of the product.
  • this gap is preferably bridged utilizing common heat transfer compounds.
  • these compounds can provide rapid heat transfer from, for example, the carbon steel surface of an internal heating coil to an aluminum surface of a heat fin.
  • These compounds can have a thermal conductivity of twenty five (25) to fifty (50) BTU/hr ft A 2 F when used in very thin layers.
  • heat fins are applied to pipes or tubes, including preexisting pipes or tubes, in a wide variety of contexts, including contexts outside of an internal heating coil context.
  • a heat fin is secured to the outside of tubing to cool hydrogen inside of a purification system.
  • one or more heat fins are utilized in a heat exchanger implementation.
  • a heat fin 110 is installed on the outside of a smaller pipe 120, such as a one inch pipe, and a larger pipe 130 is then secured (e.g. by welding) around the outside of the smaller pipe and heat fin, thereby creating a single pass heat exchanger, as illustrated in FIG. 4.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • General Induction Heating (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat fin includes first and second halves, each half including a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another. Each of the planar portions extends outwardly from the curved portion and generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe. A system includes a large scale container having product contained therein, an internal coil within the large scale container having a heating medium flowing therethrough, and a heat fin secured to the internal coil. The heat fin increases heat transfer from the heating medium flowing through the internal coil into the product contained in the large scale container.

Description

HEAT FINS AND RELATED SYSTEMS AND METHODS
CROSS REFERENCE TO RELEATED APPLICATION
[001] For purposes of the U.S., the present application is a U.S. nonprovisional patent application of, and claims priority under 35 U.S.C. §119(e) to, U.S. provisional patent application serial number 61/306,233, filed February 19, 2010. This provisional patent application is hereby incorporated herein by reference.
COPYRIGHT STATEMENT
[002] All of the material in this patent document is subject to copyright protection under the copyright laws of the United States and other countries. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in official governmental records but, otherwise, all other copyright rights whatsoever are reserved.
BACKGROUND OF THE INVENTION
[003] The present invention generally relates to providing heat to product stored in large scale containers.
[004] Large scale containers, such as, for example, tanks, vessels and drums, are often used by processing plants to hold liquids needed for processing, storage and/or resale. Plants which process or store water, solvents, additives, chemicals, petrochemicals, crude oil, asphalt or edible oils commonly use such containers. Many of these products require additional heat to prevent the product inside the container from freezing or to keep the product below a certain viscosity.
[005] There are several methods used to add heat to product inside a vessel. One such method utilizes internal heating coils, sometimes referred to simply as internal coils.
[006] Such an internal coil may comprise a small diameter pipe (2" to 3") installed along the bottom (and sometimes the sides) of a vessel or tank. A heating medium, such as, for example, steam, hot water or hot oil, flows through the pipe, thereby causing the pipe to act as a heating element. The heating medium has a higher temperature than the process inside the tank, thereby creating a temperature difference.
[007] Heat transfer from the heating medium to the process can be determined using the equation Q = UAdT, where Q is the heat transfer from the heating medium to the process, U is the overall heat transfer coefficient from the heating medium to the process, A is the total surface area of the heating medium against the process, and dT is the difference in temperature between the heating medium and the process. This equation allows one to calculate how much heat energy is transferred from the heating medium into the process for any application.
[008] Typically, the goal would be to add enough heat into the process so as to replace heat that is lost through:
• the tank walls and insulation;
• the bottom of the tank into the earth; and
• the air space atop the process (but inside the tank) through the roof wall and then through the insulation.
[009] Internal heating coils are commonly utilized in large vessels such as, for example, asphalt tanks, heavy crude oil tanks, vacuum bottom tanks and No. 6 fuel oil tanks, because:
• the product (e.g. crude oil) is normally not completely unsalvageable if the heating medium leaks into the product;
• the product's temperature range is not normally small; and
• it is very straightforward to design and maximize surface area (A), for example by installing additional footage of pipe, because the heat transfer from the heating medium to the product (Q), the overall heat transfer coefficient from the heating medium to the product (U), and the difference in temperature between the heating medium and the product (dT) are all known.
[010] One potential problem, specifically when using internal coils to heat petroleum-based products inside tanks, is that these products (asphalt, coker feeds, vacuum residues and No. 6 fuel oil) may solidify on the outside of the internal coils over time. This process is commonly known as "coking". When product "cooks" on the outside wall of an internal coil, it adheres to the outside of the internal coil and leaves a heavy residue that will not naturally dissipate. This presents two problems.
[011] First, the cooked on material hinders heat transfer from the heating medium to the process because it has very poor thermal conductivity, as it is comprised of mostly carbon. So, the thermal performance of the coil is diminished over time as the layer grows and eventually requires total replacement of the coil.
[012] Second, the cooked on material is very costly to remove from the coil during scheduled cleaning. Hydro-blasting is the typical method of cleaning such cooked on material off of a coil, and this can be very costly. [013] A need exists for improvement in providing heat to product stored in large scale containers. This, and other needs, are addressed by one or more aspects of the present invention.
SUMMARY OF THE INVENTION
[014] The present invention includes many aspects and features. Moreover, while many aspects and features relate to, and are described in, the context of providing heat to product stored in large scale containers, the present invention is not limited to use only in this context, as will become apparent from the following summaries and detailed descriptions of aspects, features, and one or more embodiments of the present invention.
[015] One aspect of the present invention relates to a heat fin. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe.
[016] In a feature of this aspect of the invention, the heat fin was extruded.
[017] In a feature of this aspect of the invention, the heat fin comprises aluminum.
[018] In a feature of this aspect of the invention, the heat fin comprises carbon steel.
[019] In a feature of this aspect of the invention, the heat fin comprises stainless steel.
[020] In a feature of this aspect of the invention, the heat fin comprises a silicon-based compound.
[021] In a feature of this aspect of the invention, the heat fin comprises a graphite-based compound.
[022] In a feature of this aspect of the invention, the heat fin comprises a high-conductivity polymer.
[023] In a feature of this aspect of the invention, the heat fin is forty feet long.
[024] In a feature of this aspect of the invention, the heat fin is nine feet and six inches long.
[025] Another aspect of the present invention relates to a heat fin. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe.
[026] Another aspect of the present invention relates to a system. The system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are bolted to one another around the internal coil. The heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
[027] Another aspect of the present invention relates to a system. The system includes a large scale container having product contained therein, an internal coil within the large scale container having a heating medium flowing therethrough, and a heat fin secured to the internal coil. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are bolted to one another around the internal coil. The heat fin increases heat transfer from the heating medium flowing through the internal coil into the product contained in the large scale container.
[028] Another aspect of the present invention relates to a system. The system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are bolted to one another around the internal coil. A heat transfer compound is disposed in one or more gaps between the internal coil and the heat fin. The heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
[029] Another aspect of the present invention relates to a system. The system includes an internal coil having a heating medium flowing therethrough, and a heat fin secured to the internal coil. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are bolted to one another around the internal coil.
[030] Another aspect of the present invention relates to a method of manufacturing a heat fin. The method includes extruding first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe.
[031] Another aspect of the present invention relates to a method. The method includes extruding first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe. The method further includes cutting each of the first and second halves into nine feet six inch long sections, and shipping each of the first and second halves.
[032] Another aspect of the present invention relates to a method. The method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe. The method further includes securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together.
[033] Another aspect of the present invention relates to a method. The method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be bolted to one another around a pipe. The method further includes securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together, and applying a heat transfer compound to one or more gaps between the heat fin and the internal coil.
[034] Another aspect of the present invention relates to a method. The method includes unsecuring first and second halves of a first heat fin from around an internal coil, each half of the first heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The method further includes partially surrounding the internal coil with each of first and second halves of a second heat fin, each half of the second heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of of the second heat fin. The first and second halves of the second heat fin are configured to be bolted to one another around the internal coil. The method further includes securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
[035] Another aspect of the present invention relates to a method. The method includes unsecuring first and second halves of a heat fin from around an internal coil, each half of the first heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The method further includes cleaning the heat fin, partially surrounding the internal coil with the first and second halves of the heat fin, and securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
[036] Another aspect of the present invention relates to a heat fin. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. The first and second halves are configured to be bolted to one another around a pipe.
[037] Another aspect of the present invention relates to a system for asphalt tank heating. The system includes a tank containing asphalt, an internal coil disposed within at least partially within the tank having a heating medium flowing therethrough, the internal coil being positioned to heat the asphalt, and a heat fin secured to the internal coil. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are secured to one another around the internal coil. The heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into the asphalt contained in the tank.
[038] Another aspect of the present invention relates to a heat fin. The heat fin includes first and second halves. Each half includes a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be secured to one another around a pipe.
[039] Another aspect of the present invention relates to a heat fin. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround a pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be secured to one another around a pipe.
[040] Another aspect of the present invention relates to a system. The system includes a first pipe, and a heat fin secured to the first pipe. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are secured to one another around the pipe. The system further includes a second pipe secured around the outside of the first pipe and heat fin secured therearound. The heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes;
[041] whereby the system functions as a heat exchanger.
[042] In a feature of this aspect, the securement of the second pipe was effected by welding.
[043] Another aspect of the present invention relates to a system for heat exchange. The system includes a first pipe, and a heat fin secured to the first pipe. The heat fin includes first and second halves, each half comprising a curved portion configured to partially surround the pipe, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are secured to one another around the pipe. The system further includes a second pipe secured around the outside of the first pipe and heat fin. The heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes.
[044] In a feature of this aspect, the securement of the second pipe was effected by welding.
[045] Another aspect of the present invention relates to a method. The method includes partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be secured to one another around a pipe. The method further includes securing the heat fin around the internal coil by securing the first and second halves of the heat fin together.
[046] Another aspect of the present invention relates to a method. The method includes partially surrounding a first pipe with each of first and second halves of a heat fin, each half of the heat fin comprising a curved portion configured to partially surround the internal coil, and a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion. Each of the plurality of planar portions generally runs along the entire length of the respective half it is part of. The first and second halves are configured to be secured to one another around a pipe. The method further includes securing the heat fin around the first pipe by securing the first and second halves of the heat fin together, and securing a second pipe around the outside of the first pipe and heat fin. [047] In addition to the aforementioned aspects and features of the present invention, it should be noted that the present invention further encompasses the various possible combinations and subcombinations of such aspects and features.
BRIEF DESCRIPTION OF THE DRAWINGS
[048] One or more preferred embodiments of the present invention now will be described in detail with reference to the accompanying drawings, wherein the same elements are referred to with the same reference numerals, and wherein,
[049] FIG. 1 is a perspective illustration of a fragmented portion of a first half of a bolt-on heat fin partially surrounding an internal heating coil in accordance with one or more preferred embodiments.
[050] FIG. 2 is a cross-sectional schematic view of a heat fin bolted onto a three inch diameter carbon steel pipe.
[051] FIG. 3 includes a table which provides a summary of calculations for an exemplary scenario.
[052] FIG. 4 illustrates an exemplary single pass heat exchanger utilizing a smaller pipe, a heat fin, and a larger pipe.
DETAILED DESCRIPTION
[053] As a preliminary matter, it will readily be understood by one having ordinary skill in the relevant art ("Ordinary Artisan") that the present invention has broad utility and application. Furthermore, any embodiment discussed and identified as being "preferred" is considered to be part of a best mode contemplated for carrying out the present invention. Other embodiments also may be discussed for additional illustrative purposes in providing a full and enabling disclosure of the present invention. As should be understood, any embodiment may incorporate only one or a plurality of the above-disclosed aspects of the invention and may further incorporate only one or a plurality of the above-disclosed features. Moreover, many embodiments, such as adaptations, variations, modifications, and equivalent arrangements, will be implicitly disclosed by the embodiments described herein and fall within the scope of the present invention.
[054] Accordingly, while the present invention is described herein in detail in relation to one or more embodiments, it is to be understood that this disclosure is illustrative and exemplary of the present invention, and is made merely for the purposes of providing a full and enabling disclosure of the present invention. The detailed disclosure herein of one or more embodiments is not intended, nor is to be construed, to limit the scope of patent protection afforded the present invention, which scope is to be defined by the claims and the equivalents thereof. It is not intended that the scope of patent protection afforded the present invention be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself.
[055] Thus, for example, any sequence(s) and/or temporal order of steps of various processes or methods that are described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal order, the steps of any such processes or methods are not limited to being carried out in any particular sequence or order, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in various different sequences and orders while still falling within the scope of the present invention. Accordingly, it is intended that the scope of patent protection afforded the present invention is to be defined by the appended claims rather than the description set forth herein.
[056] Additionally, it is important to note that each term used herein refers to that which the Ordinary Artisan would understand such term to mean based on the contextual use of such term herein. To the extent that the meaning of a term used herein— as understood by the Ordinary Artisan based on the contextual use of such term— differs in any way from any particular dictionary definition of such term, it is intended that the meaning of the term as understood by the Ordinary Artisan should prevail.
[057] Regarding applicability of 35 U.S.C. §112, 96, no claim element is intended to be read in accordance with this statutory provision unless the explicit phrase "means for" or "step for" is actually used in such claim element, whereupon this statutory provision is intended to apply in the interpretation of such claim element.
[058] Furthermore, it is important to note that, as used herein, "a" and "an" each generally denotes "at least one," but does not exclude a plurality unless the contextual use dictates otherwise. Thus, reference to "a picnic basket having an apple" describes "a picnic basket having at least one apple" as well as "a picnic basket having apples." In contrast, reference to "a picnic basket having a single apple" describes "a picnic basket having only one apple."
[059] When used herein to join a list of items, "or" denotes "at least one of the items," but does not exclude a plurality of items of the list. Thus, reference to "a picnic basket having cheese or crackers" describes "a picnic basket having cheese without crackers", "a picnic basket having crackers without cheese", and "a picnic basket having both cheese and crackers." Finally, when used herein to join a list of items, "and" denotes "all of the items of the list." Thus, reference to "a picnic basket having cheese and crackers" describes "a picnic basket having cheese, wherein the picnic basket further has crackers," as well as describes "a picnic basket having crackers, wherein the picnic basket further has cheese."
[060] Referring now to the drawings, one or more preferred embodiments of the present invention are next described. The following description of one or more preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its implementations, or uses.
[061] In accordance with one or more preferred embodiments, a heat fin made from aluminum or other high-conductivity material is configured to be bolted onto an internal heating coil. The heat fin is configured such that, when bolted onto an internal heating coil of a large scale container, it forms an external and removable heat enhancer to increase heat transfer from a heating medium flowing through the internal coil into product contained in the large scale container.
[062] FIG. 1 is a perspective illustration of a fragmented portion of a first half 12 of a bolt-on heat fin partially surrounding an internal heating coil 20 in accordance with one or more preferred embodiments. The portion is described as being fragmented because, in at least some preferred implementations, the heat fin will extend substantially the entire length of an internal heating coil it surrounds. In a preferred implementation, heat fins are extruded in approximately forty foot (40') length sections, although in at least some preferred implementations such heat fins may be cut to nine feet six inch (9'6") length sections so as to be shippable overnight by truck or air.
[063] The first half 12 is configured to be bolted to a second half 14 of the heat fin such that the heat fin is secured to an internal heating coil, as illustrated in FIG. 2, which is a cross- sectional schematic view of the heat fin bolted onto a three inch (3") diameter (three and a half inch (3.5") nominal) carbon steel pipe. It will be appreciated that although only a single bolt is illustrated in cross-section, bolts likely will be utilized to secure the halves 12,14 together at both top and bottom portions of the halves 12,14 along the length of the halves 12,14.
[064] The heat fin is configured to increase the heat transfer area of a coil it is secured to. In an exemplary scenario, such a heat fin can increase the total heat transfer of normal pipe internal coils by 600%. Table 1 of FIG. 3 provides a summary of calculations for such exemplary scenario. [065] In this exemplary scenario, the total footage of internal coil required to meet a particular thermal duty of an application could be reduced by as much as six (6) times, or possibly even more in some cases. For example, if an internal coil was used to heat asphalt with a very low convection coefficient (1 BTU/hr ftA2 F), six hundred feet (600') of standard internal coil might be equal to the heating capabilities of one hundred feet (100') of internal coil with a heat fin installed over the internal coil. This would make internal coils much more economical to install and maintain.
[066] Further, because the heat fin is bolted on, instead of hydro -blasting the coils clean, the bolted'on heat fin can be removed, cleaned and replaced, or removed and replaced entirely.
[067] As noted above, in preferred implementations, heat fins (or heat fin halves) are extruded, such as, for example, from aluminum, and machined for bolting purposes, although in at least some implementations halves of heat fins may be secured together in some other manner, and may be configured for such securement in some other manner . Preferably, heat fins are anodized to extend their life under harsh conditions.
[068] In at least some alternative implementations, a heat fin is made from carbon steel, stainless steel, copper, a silicon-based compound, a graphite-based compound, and/or one or more high conductivity polymers or plastics.
[069] In preferred implementations, one or more heat fins are specifically selected and/or designed for a particular application by calculating heat lost through ambient conditions and overcoming such loss by adding enough heat into the process by way of heat fin installation onto internal heating coils. A heat fin may also be selected or designed to meet a specific heat-up requirement of the product.
[070] In at least some implementations, there exists a gap between a heat fin bolted onto an internal coil and the internal coil. In at least some such implementations, this gap is preferably bridged utilizing common heat transfer compounds. When used in thin layers, these compounds can provide rapid heat transfer from, for example, the carbon steel surface of an internal heating coil to an aluminum surface of a heat fin. These compounds can have a thermal conductivity of twenty five (25) to fifty (50) BTU/hr ftA2 F when used in very thin layers.
[071] In preferred implementations, heat fins are applied to pipes or tubes, including preexisting pipes or tubes, in a wide variety of contexts, including contexts outside of an internal heating coil context. For example, in a preferred implementation, a heat fin is secured to the outside of tubing to cool hydrogen inside of a purification system. [072] In another preferred implementation, one or more heat fins are utilized in a heat exchanger implementation. For example, in a simple heat exchanger implementation, a heat fin 110 is installed on the outside of a smaller pipe 120, such as a one inch pipe, and a larger pipe 130 is then secured (e.g. by welding) around the outside of the smaller pipe and heat fin, thereby creating a single pass heat exchanger, as illustrated in FIG. 4.
[073] Although described and illustrated herein primarily as including a plurality of planar portions extending from a curved portion, it will be appreciated that the extending portions may in fact be curved, or otherwise shaped, in at least some implementations.
[074] Based on the foregoing description, it will be readily understood by those persons skilled in the art that the present invention is susceptible of broad utility and application. Many embodiments and adaptations of the present invention other than those specifically described herein, as well as many variations, modifications, and equivalent arrangements, will be apparent from or reasonably suggested by the present invention and the foregoing descriptions thereof, without departing from the substance or scope of the present invention. Accordingly, while the present invention has been described herein in detail in relation to one or more preferred embodiments, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for the purpose of providing a full and enabling disclosure of the invention. The foregoing disclosure is not intended to be construed to limit the present invention or otherwise exclude any such other embodiments, adaptations, variations, modifications or equivalent arrangements, the present invention being limited only by the claims appended hereto and the equivalents thereof.

Claims

What is claimed is:
1. A heat fin, comprising:
(a) first and second halves, each half comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe.
2. A heat fin, comprising:
(a) first and second halves, each half comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe.
3. A system, comprising:
(a) an internal coil having a heating medium flowing therethrough;
(b) a heat fin secured to the internal coil, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the internal coil, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion, (C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are bolted to one another around the internal coil;
(c) wherein the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
4. A system, comprising:
(a) a large scale container having product contained therein;
(b) an internal coil within the large scale container having a heating medium flowing therethrough;
(c) a heat fin secured to the internal coil, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the internal coil, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are bolted to one another around the internal coil;
(d) wherein the heat fin increases heat transfer from the heating medium flowing through the internal coil into the product contained in the large scale container.
5. A system, comprising:
(a) an internal coil having a heating medium flowing therethrough;
(b) a heat fin secured to the internal coil, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the internal coil, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion, (C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are bolted to one another around the internal coil;
(c) a heat transfer compound disposed in one or more gaps between the internal coil and the heat fin;
(d) wherein the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into product contained in a large scale container.
6. A system, comprising:
(a) an internal coil having a heating medium flowing therethrough; and
(b) a heat fin secured to the internal coil, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the internal coil, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are bolted to one another around the internal coil.
7. The heat fin of claim 1, wherein the heat fin was extruded.
8. The heat fin of claim 1, wherein the heat fin comprises aluminum.
9. The heat fin of claim 1, wherein the heat fin comprises carbon steel.
10. The heat fin of claim 1, wherein the heat fin comprises stainless steel.
11. The heat fin of claim 1, wherein the heat fin comprises a silicon-based compound.
12. The heat fin of claim 1, wherein the heat fin comprises a graphite-based compound.
13. The heat fin of claim 1, wherein the heat fin is forty feet long.
14. The heat fin of claim 1, wherein the heat fin is nine feet and six inches long.
15. A method of manufacturing a heat fin, comprising:
(a) extruding first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround a pipe, and (ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe.
A method, comprising:
(a) extruding first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe;
(c) cutting each of the first and second halves into nine feet six inch long sections; and
(d) shipping each of the first and second halves.
A method, comprising:
(a) partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe;
(c) securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together. A method, comprising:
(a) partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe;
(c) securing the heat fin around the internal coil by bolting the first and second halves of the heat fin together;
(d) applying a heat transfer compound to one or more gaps between the heat fin and the internal coil.
A method, comprising:
(a) unsecuring first and second halves of a first heat fin from around an internal coil, each half of the first heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) partially surrounding the internal coil with each of first and second halves of a second heat fin, each half of the second heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(c) wherein the first and second halves of the second heat fin are configured to be bolted to one another around the internal coil; (d) securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
A method, comprising:
(a) unsecuring first and second halves of a heat fin from around an internal coil, each half of the first heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) cleaning the heat fin;
(b) partially surrounding the internal coil with the first and second halves of the heat fin;
(d) securing the second heat fin around the internal coil by bolting the first and second halves of the heat fin together.
A heat fin, comprising:
(a) first and second halves, each half comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion;
(b) wherein the first and second halves are configured to be bolted to one another around a pipe.
A system for asphalt tank heating, the system comprising:
(a) a tank containing asphalt;
(b) an internal coil disposed within at least partially within the tank having a heating medium flowing therethrough, the internal coil being positioned to heat the asphalt;
(b) a heat fin secured to the internal coil, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the internal coil, and (B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
wherein the first and second halves are secured to one another around the internal coil;
(c) wherein the heat fin is configured to increase heat transfer from the heating medium flowing through the internal coil into the asphalt contained in the tank.
A heat fin, comprising:
(a) first and second halves, each half comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be secured to one another around a pipe.
A heat fin, comprising:
(a) first and second halves, each half comprising
(i) a curved portion configured to partially surround a pipe, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion in a direction generally perpendicular to a line tangential to the curved portion at the point that planar portion joins the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be secured to one another around a pipe.
25. A system, comprising:
(a) a first pipe, (b) a heat fin secured to the first pipe, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the pipe, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are secured to one another around the pipe; and
(c) a second pipe secured around the outside of the first pipe and heat fin secured therearound;
(d) wherein the heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes;
whereby the system functions as a heat exchanger.
The system of claim 24, wherein the securement of the second pipe was effected by welding.
A system for heat exchange, comprising:
(a) a first pipe,
(b) a heat fin secured to the first pipe, the heat fin comprising:
(i) first and second halves, each half comprising
(A) a curved portion configured to partially surround the pipe, and
(B) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(C) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(ii) wherein the first and second halves are secured to one another around the pipe; and
(c) a second pipe secured around the outside of the first pipe and heat fin;
(d) wherein the heat fin is configured to increase heat transfer from one of the pipes to the other of the pipes.
The system of claim 26, wherein the securement of the second pipe was effected by welding.
28. A method comprising:
(a) partially surrounding an internal coil with each of first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be secured to one another around a pipe;
(c) securing the heat fin around the internal coil by securing the first and second halves of the heat fin together.
29. A method comprising:
(a) partially surrounding a first pipe with each of first and second halves of a heat fin, each half of the heat fin comprising
(i) a curved portion configured to partially surround the internal coil, and
(ii) a plurality of planar portions spaced generally evenly from one another, each planar portion extending outwardly from the curved portion,
(iii) wherein each of the plurality of planar portions generally runs along the entire length of the respective half it is part of;
(b) wherein the first and second halves are configured to be secured to one another around a pipe;
(c) securing the heat fin around the first pipe by securing the first and second halves of the heat fin together;
(d) securing a second pipe around the outside of the first pipe and heat fin.
30. The method of claim 29, wherein said step of securing a second pipe comprises welding.
31. The heat fin of claim 1, wherein the heat fin comprises a high-conductivity polymer.
32. A heat fin as disclosed.
33. An apparatus as disclosed.
34. A method as disclosed.
35. A method of manufacturing a heat fin as disclosed.
36. A method of using a heat fin as disclosed.
37. A method of shipping a heat fin as disclosed.
38. A method of heating product as disclosed.
39. A system as disclosed.
40. A system for heating product as disclosed.
PCT/US2011/025415 2010-02-19 2011-02-18 Heat fins and related systems and methods WO2011103410A2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469082B2 (en) 2008-12-06 2013-06-25 3Ip, Llc Heat transfer between tracer and pipe
CN105043135A (en) * 2015-06-19 2015-11-11 贵州航天凯宏科技有限责任公司 Heat radiator and manufacturing method thereof
CN105674768A (en) * 2016-04-06 2016-06-15 枣庄福源环能机械制造有限公司 Cast-iron heat radiator of stainless steel tube bundle structure
CN106796387A (en) * 2014-10-10 2017-05-31 索尼公司 Fluorophor wheel, light supply apparatus and projection type image display apparatus
US12188729B2 (en) 2020-10-08 2025-01-07 Controls Southeast, Inc. Adjustable heat transfer element

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP1541388S (en) * 2015-05-21 2016-01-12
JP1541387S (en) * 2015-05-21 2016-01-12
CN105277017B (en) * 2015-11-28 2016-10-19 枣庄福源环能机械制造有限公司 A kind of heat conduction and heat radiation plate assembly of the heating exchanger for bank of tubes structure
US20170356692A1 (en) * 2016-06-08 2017-12-14 Savannah River Nuclear Solutions, Llc Finned Heat Exchanger
WO2018124253A1 (en) * 2016-12-26 2018-07-05 株式会社ティラド Structure joined by nickel brazing
CN106907943B (en) * 2017-03-02 2019-04-23 青岛海尔空调器有限总公司 Heat exchanger
US10704846B2 (en) 2017-06-12 2020-07-07 Hamilton Sundstrand Corporation Hybrid metal-polymer heat exchanger
US11466609B2 (en) * 2020-12-02 2022-10-11 Ennovare, LLC Turbo air cooler
USD1038348S1 (en) * 2021-05-05 2024-08-06 Stego-Holding Gmbh Convector heater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020089736A (en) * 2001-05-24 2002-11-30 한국에너지기술연구원 High Efficiency Heat Exchanger using Helical Inner-Tubes
JP2003307396A (en) * 2002-04-16 2003-10-31 Usui Kokusai Sangyo Kaisha Ltd Fin tube
KR100563847B1 (en) * 2004-11-19 2006-03-24 엘에스전선 주식회사 Expansion tube for heat shrinkable tube to improve wear resistance
JP2006317046A (en) * 2005-05-11 2006-11-24 Wakayuki Ishida Heat exchanger tube

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1920800A (en) * 1931-08-07 1933-08-01 Griscom Russell Co Heat exchanger
GB656519A (en) * 1946-08-31 1951-08-22 Brown Fintube Co Improvements in the construction of heat exchangers
US3363672A (en) * 1966-05-23 1968-01-16 Chemical Construction Corp Method and apparatus for cooling pitch
US3877128A (en) * 1969-01-21 1975-04-15 Airco Inc Method of producing a finned tube heat exchanger
US4180055A (en) * 1978-01-03 1979-12-25 Hudnall Walter E Solar-heat collector
US4244098A (en) * 1978-05-26 1981-01-13 General Electric Company Method of assembling a dynamoelectric machine and an auxiliary cooling device
CH647592A5 (en) * 1980-07-10 1985-01-31 Cryomec Ag HEAT TRANSFER ELEMENT, ESPECIALLY FOR CREATING A HEAT EXCHANGER FOR CRYOGENEOUS APPLICATIONS.
US6508159B1 (en) * 2001-07-13 2003-01-21 Todd A. Muirhead Heat sink for firearm barrels and method for attachment and use
EP1946030A1 (en) * 2005-11-09 2008-07-23 TIR Technology LP Passive thermal management system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020089736A (en) * 2001-05-24 2002-11-30 한국에너지기술연구원 High Efficiency Heat Exchanger using Helical Inner-Tubes
JP2003307396A (en) * 2002-04-16 2003-10-31 Usui Kokusai Sangyo Kaisha Ltd Fin tube
KR100563847B1 (en) * 2004-11-19 2006-03-24 엘에스전선 주식회사 Expansion tube for heat shrinkable tube to improve wear resistance
JP2006317046A (en) * 2005-05-11 2006-11-24 Wakayuki Ishida Heat exchanger tube

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469082B2 (en) 2008-12-06 2013-06-25 3Ip, Llc Heat transfer between tracer and pipe
US8662156B2 (en) 2008-12-06 2014-03-04 Qmax Industries, Llc Heat transfer between tracer and pipe
US10520257B2 (en) 2008-12-06 2019-12-31 Controls Southeast, Inc. Heat transfer between tracer and pipe
US12111116B2 (en) 2008-12-06 2024-10-08 Controls Southeast, Inc. Heat transfer between tracer and pipe
CN106796387A (en) * 2014-10-10 2017-05-31 索尼公司 Fluorophor wheel, light supply apparatus and projection type image display apparatus
CN105043135A (en) * 2015-06-19 2015-11-11 贵州航天凯宏科技有限责任公司 Heat radiator and manufacturing method thereof
CN105043135B (en) * 2015-06-19 2017-03-08 贵州航天凯宏科技有限责任公司 A kind of radiator and preparation method thereof
CN105674768A (en) * 2016-04-06 2016-06-15 枣庄福源环能机械制造有限公司 Cast-iron heat radiator of stainless steel tube bundle structure
US12188729B2 (en) 2020-10-08 2025-01-07 Controls Southeast, Inc. Adjustable heat transfer element

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