CA1252082A - Tubular heat exchanger - Google Patents
Tubular heat exchangerInfo
- Publication number
- CA1252082A CA1252082A CA000456062A CA456062A CA1252082A CA 1252082 A CA1252082 A CA 1252082A CA 000456062 A CA000456062 A CA 000456062A CA 456062 A CA456062 A CA 456062A CA 1252082 A CA1252082 A CA 1252082A
- Authority
- CA
- Canada
- Prior art keywords
- heat exchange
- exchange apparatus
- frame
- tubing
- units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 229920002313 fluoropolymer Polymers 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- F28D7/04—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 spirally coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
TITLE
TUBULAR HEAT EXCHANGER
ABSTRACT OF THE INVENTION
A tubular spirally-wound heat exchanger having a circumferentially collapsible radial frame and means to combine the heat exchanger with one or more similar apparatus.
TUBULAR HEAT EXCHANGER
ABSTRACT OF THE INVENTION
A tubular spirally-wound heat exchanger having a circumferentially collapsible radial frame and means to combine the heat exchanger with one or more similar apparatus.
Description
. ~s~n~2 TITLE
TUB'J~AR HE~T EXC~GER
BACKGROV~D OF THE INVEI~TION
Heat exchangers having thermoplastic tubular heat-transfer elements, and especially those in which the transfer elements are made from fluorocarbon polymers, are widely used in he~t-transfer applications involving corrosive media such as sulfuric acid and sulfur dioxide gas. With the increasing price of energy, heat recovery applications have extended to small process baths such as those used in metal finishing.
Small immersion coils having noncorroding tubes of polymeric materials are currently available for such applications. These small immersion coils can be used singly or, when appropriate, in combination to provide a modular construction base~
on a combination of several such small coils. Such modular constructions are described, for example, in U.S. Patents 3,285,334 and 4,030,540.
In the preparation of many small immersion coil heat exchangers, one or more heat exchange tubes are typically wound through a frame in a spiral configuration. With extended use in corrosi~e environments, however, replacement of one or more of the tubes is often necessary. A need therefore exists for a method of easy replacement of the tubes which would also facilitate the initial assembly of the small immersibn coil units. In addition, a continuing need exists for constructions that can be readily adapted to use in combination with other sllch immersion coils when multiple coils are required for modular construction.
SU~ Y OF T~E I~VEN~IO~
I'he instant invention provides an improved heat-exchange apparatus which permits easy assembly 25~2:0~3Z
and replacement of the polymeric tubing as well as means for combining two or more of the apparatus into a grouped array.
Specifically, the instant invention provides, in a heat exchange apparatus comprising at least one coil of spirally-wound polymeric tubing supported within a radial frame, the radial frame having flat sections that are positioned transversely to the run of the tubing, the improvement wherein the flat sections are circumferentially collapsible and wherein the apparatus further comprises means adapted to combine with one or more similar aPparatUS.
BRIEF DESCRIPTION OF THE D~A~tINGS
FIG. 1 is an isometric view of a heat exchange apparatus of this invention showing one coil of spirally-wound fluorocarbon polymer tubing supported within a circumferentially collapsible radial frame.
FIG. 2 is an exploded view of a partially assembled heat exchange unit of the invention.
FIG. 3 shows twelve individual heat exchange units grouped together to form a multiple heat exchange apparatus.
DETAILED DESCRIPTION OF THE INVENTION
The present invention can best be understood by reference to the figures. However, the figures are only illustrative of a wide variety of alternative constructions of the invention that will be readily apparent to the skilled worker.
F~5. 1 shows an individual heat-exchange apparatus 10 having a single coil 11 of a spirally-wound polymer tubing supported within a collapsible radial frame 12 having flat radial frame sections 13, 14, 15, and 16. These flat frame sections are joined by central linking means 17.
This central linking means joins four of the flat ~;2S2C~
frame sections so that they are held in a fixed position when the linking means is in place, but are circumferentially collapsible when the linking means is removed. External support member 18 provides weight to the unit and protection for the spirally-wound tubing coil 11. It is preferred that the external support member 18 be fabricated from steel rod material having a corrosion-resistant coating such as a Teflon~ fluorocarbon polymer 1 coating and that a gap 19 be provided in the external support member 18 to facilitate assembly and disasse~bly of the heat exchange units. For example, on replacement of the spirally-wound heat-transfer tubing, the central linking means 17 is disconnected 1 by removal of the rivets which connect it to the flat frame sections, followed by removal of the linking means itself. All of the flat frame sections are moved to the position of the gap 19 and the entire unit of collapsible frame and tubing is conveniently removed.
The representative linking means shown has a central body portion 20 with four sets of support leaves 21 adapted to receive the flat frame sections. The frame sections can be anchored by pins or rivets 22 passing through both support leaves in each set and the flat frame section positioned therebetween. Other }inking means can be used to join the flat frame sections, such as hinges between each two adjacent flat frame sections~
The individual heat exchange units can have multiple spirally-wouna tubular coils mounted within the circumferentially collapsible frame 12. It is preferred that three or four such coils be mounted within the collapsible frame to form a single heat exchange unit. The individual units can be connected ~52C3 ~2 side-by-side h~rizontally or vertically in combination with an outer frame. This can be conveniently accomplished by use of connecting blocks that secure the outer frame members together. The units can also be connected center-to-center with a bolt that passes through the middle of the central linking means.
The tubular elements used ~o fabrica~e the coils are generally formed of a thermoplastic polymer. The tubular elements are preferably formed of a fluorocarbon polymeric ma~erial and in sizes as dis-closed in U.S. Patent No.3,228,456. Particularly adaptable are polymers and copolymers of tetrafluoroethylene sold under the tradename Teflon~ by E. I. du Pont de Nemours and Company. Representative examples of such fluorocarbon thermoplastic polymers include polytetrafluoroethylene modified with polyhexafluoropropylene, fluorinated ion exchange polymers and copolymers of tetrafluoroethylene and perfluoropropylvinyl e~her. In addition, other polymers can be used without departing from the spirit of the invention, including organic polymeric compositions that are thermoplastic, possess suitable compatability with the fluids handled, possess adequate properties such as strength at the desired operating conditions and further possess adequate thermal conductivity for the desired use.
It is further preferred that the fluorocarbon polymerQ use~ to fabricate the tubular elements of this invention contain filler particles to increase the thermal conductivity of the base polymer. The tubular elements can, for e~ample, comprise fluorocarbon polymer and about 5-45 weight percent graphite having a particle diametral ~ize . . ' -:~S~2 greater than 2 microns. Preparation of such tubular elements is disclosed in U.S Patent 3,718,181.
FIG. 2 is an exploded view of a partially assembled heat-exchange unit showing detai 18 of preferred means for forming grouped units by combining a series of individual heat-exchange unitq using an outer frame. In the embodiment ~hown in FIG. 2, this combination i8 fabricated by the use of bolt 30 and nut 31 in combination with outer frame units 32, 33, 34 and 35. The outer frame units are fabricated from corrosion-r~sistant thermoplastic material or metal coated with corrosion-resictant thermoplsstic resins such as Teflon~ fluorocarbon polymer resins. T~e radial ~rames of the individual heat-exchange units are interlocked within the outer fra~e units by use of mating notches such as notches 36 and 37 These frame units such as 32 and 33 are then secured together by use of tieplates and rivets such as tieplate 38 or 39 and rivets 40 and 41. By use of such construction, grouped units can be assembled in both adjacent and in-line configurations.
FIG. 3 shows an assembled heat-exchange unit comprising twelve individual heat-exchange units.
This assembled unit is fabricated with outer frames as shown in FIG. 2. The flow of fluid in th~
combined units can be directed through inlet and outlet headers, as shown in FIG. 3. Inlet header 42 and outlet header 43 provide for the flow of heat-exchan~e fluid which is being passed through the individual heat-exchange units 10. The coils 11 of the heat-exchange units are connected to the inlet and outlet headers via tubing connectors 44.
As can be seen by the construction shown in FIG. 3, there is no practical li~it as to the size or 3~
~S~VB2 geometric grouping of the individual heat exchange units. Smaller assembled units can also be indi~idually positioned within certain heat exchange environments such as plating baths and corrosive effluent streams.
The apparatus of this invention has several important advantages over comparable known heat exchange apparatus. These advantages include the ease of assembly and disassembly of the grouped units, the ease of replacing a damaged polymeric tubing coil the ease of cleaning the apparatus and the ease of forming grouped units of desired heat transfer capacity with a minimum of inventory investment. The initial assembly of the heat exchange apparatus is facilitated by the collapsible nature of the radial frame sections, since these sections, when in the collapsed condition, permit the stringing of the polymeric tubing through one set of aligned holes in the collapsed frame sections instead of stringing the tubing through each frame section separately.
In operation, the apparatus of this invention can be used to exchange heat between two fluidso Representative fluids include sulfuric acid 25 of different strengths and different temperatures.
The apparatus can be used with liquids inside the tubes and gas on the outside, for example, sulfur dioxide gas on the outside and water in the tubes.
The appara~us of this invention is most often used to 30 exchange heat from one fluid to another fluid where one or both of the fluids is highl~ corrosive. The cleaner of the two fluids should generally be used inside the tubes to prevent fouling.
TUB'J~AR HE~T EXC~GER
BACKGROV~D OF THE INVEI~TION
Heat exchangers having thermoplastic tubular heat-transfer elements, and especially those in which the transfer elements are made from fluorocarbon polymers, are widely used in he~t-transfer applications involving corrosive media such as sulfuric acid and sulfur dioxide gas. With the increasing price of energy, heat recovery applications have extended to small process baths such as those used in metal finishing.
Small immersion coils having noncorroding tubes of polymeric materials are currently available for such applications. These small immersion coils can be used singly or, when appropriate, in combination to provide a modular construction base~
on a combination of several such small coils. Such modular constructions are described, for example, in U.S. Patents 3,285,334 and 4,030,540.
In the preparation of many small immersion coil heat exchangers, one or more heat exchange tubes are typically wound through a frame in a spiral configuration. With extended use in corrosi~e environments, however, replacement of one or more of the tubes is often necessary. A need therefore exists for a method of easy replacement of the tubes which would also facilitate the initial assembly of the small immersibn coil units. In addition, a continuing need exists for constructions that can be readily adapted to use in combination with other sllch immersion coils when multiple coils are required for modular construction.
SU~ Y OF T~E I~VEN~IO~
I'he instant invention provides an improved heat-exchange apparatus which permits easy assembly 25~2:0~3Z
and replacement of the polymeric tubing as well as means for combining two or more of the apparatus into a grouped array.
Specifically, the instant invention provides, in a heat exchange apparatus comprising at least one coil of spirally-wound polymeric tubing supported within a radial frame, the radial frame having flat sections that are positioned transversely to the run of the tubing, the improvement wherein the flat sections are circumferentially collapsible and wherein the apparatus further comprises means adapted to combine with one or more similar aPparatUS.
BRIEF DESCRIPTION OF THE D~A~tINGS
FIG. 1 is an isometric view of a heat exchange apparatus of this invention showing one coil of spirally-wound fluorocarbon polymer tubing supported within a circumferentially collapsible radial frame.
FIG. 2 is an exploded view of a partially assembled heat exchange unit of the invention.
FIG. 3 shows twelve individual heat exchange units grouped together to form a multiple heat exchange apparatus.
DETAILED DESCRIPTION OF THE INVENTION
The present invention can best be understood by reference to the figures. However, the figures are only illustrative of a wide variety of alternative constructions of the invention that will be readily apparent to the skilled worker.
F~5. 1 shows an individual heat-exchange apparatus 10 having a single coil 11 of a spirally-wound polymer tubing supported within a collapsible radial frame 12 having flat radial frame sections 13, 14, 15, and 16. These flat frame sections are joined by central linking means 17.
This central linking means joins four of the flat ~;2S2C~
frame sections so that they are held in a fixed position when the linking means is in place, but are circumferentially collapsible when the linking means is removed. External support member 18 provides weight to the unit and protection for the spirally-wound tubing coil 11. It is preferred that the external support member 18 be fabricated from steel rod material having a corrosion-resistant coating such as a Teflon~ fluorocarbon polymer 1 coating and that a gap 19 be provided in the external support member 18 to facilitate assembly and disasse~bly of the heat exchange units. For example, on replacement of the spirally-wound heat-transfer tubing, the central linking means 17 is disconnected 1 by removal of the rivets which connect it to the flat frame sections, followed by removal of the linking means itself. All of the flat frame sections are moved to the position of the gap 19 and the entire unit of collapsible frame and tubing is conveniently removed.
The representative linking means shown has a central body portion 20 with four sets of support leaves 21 adapted to receive the flat frame sections. The frame sections can be anchored by pins or rivets 22 passing through both support leaves in each set and the flat frame section positioned therebetween. Other }inking means can be used to join the flat frame sections, such as hinges between each two adjacent flat frame sections~
The individual heat exchange units can have multiple spirally-wouna tubular coils mounted within the circumferentially collapsible frame 12. It is preferred that three or four such coils be mounted within the collapsible frame to form a single heat exchange unit. The individual units can be connected ~52C3 ~2 side-by-side h~rizontally or vertically in combination with an outer frame. This can be conveniently accomplished by use of connecting blocks that secure the outer frame members together. The units can also be connected center-to-center with a bolt that passes through the middle of the central linking means.
The tubular elements used ~o fabrica~e the coils are generally formed of a thermoplastic polymer. The tubular elements are preferably formed of a fluorocarbon polymeric ma~erial and in sizes as dis-closed in U.S. Patent No.3,228,456. Particularly adaptable are polymers and copolymers of tetrafluoroethylene sold under the tradename Teflon~ by E. I. du Pont de Nemours and Company. Representative examples of such fluorocarbon thermoplastic polymers include polytetrafluoroethylene modified with polyhexafluoropropylene, fluorinated ion exchange polymers and copolymers of tetrafluoroethylene and perfluoropropylvinyl e~her. In addition, other polymers can be used without departing from the spirit of the invention, including organic polymeric compositions that are thermoplastic, possess suitable compatability with the fluids handled, possess adequate properties such as strength at the desired operating conditions and further possess adequate thermal conductivity for the desired use.
It is further preferred that the fluorocarbon polymerQ use~ to fabricate the tubular elements of this invention contain filler particles to increase the thermal conductivity of the base polymer. The tubular elements can, for e~ample, comprise fluorocarbon polymer and about 5-45 weight percent graphite having a particle diametral ~ize . . ' -:~S~2 greater than 2 microns. Preparation of such tubular elements is disclosed in U.S Patent 3,718,181.
FIG. 2 is an exploded view of a partially assembled heat-exchange unit showing detai 18 of preferred means for forming grouped units by combining a series of individual heat-exchange unitq using an outer frame. In the embodiment ~hown in FIG. 2, this combination i8 fabricated by the use of bolt 30 and nut 31 in combination with outer frame units 32, 33, 34 and 35. The outer frame units are fabricated from corrosion-r~sistant thermoplastic material or metal coated with corrosion-resictant thermoplsstic resins such as Teflon~ fluorocarbon polymer resins. T~e radial ~rames of the individual heat-exchange units are interlocked within the outer fra~e units by use of mating notches such as notches 36 and 37 These frame units such as 32 and 33 are then secured together by use of tieplates and rivets such as tieplate 38 or 39 and rivets 40 and 41. By use of such construction, grouped units can be assembled in both adjacent and in-line configurations.
FIG. 3 shows an assembled heat-exchange unit comprising twelve individual heat-exchange units.
This assembled unit is fabricated with outer frames as shown in FIG. 2. The flow of fluid in th~
combined units can be directed through inlet and outlet headers, as shown in FIG. 3. Inlet header 42 and outlet header 43 provide for the flow of heat-exchan~e fluid which is being passed through the individual heat-exchange units 10. The coils 11 of the heat-exchange units are connected to the inlet and outlet headers via tubing connectors 44.
As can be seen by the construction shown in FIG. 3, there is no practical li~it as to the size or 3~
~S~VB2 geometric grouping of the individual heat exchange units. Smaller assembled units can also be indi~idually positioned within certain heat exchange environments such as plating baths and corrosive effluent streams.
The apparatus of this invention has several important advantages over comparable known heat exchange apparatus. These advantages include the ease of assembly and disassembly of the grouped units, the ease of replacing a damaged polymeric tubing coil the ease of cleaning the apparatus and the ease of forming grouped units of desired heat transfer capacity with a minimum of inventory investment. The initial assembly of the heat exchange apparatus is facilitated by the collapsible nature of the radial frame sections, since these sections, when in the collapsed condition, permit the stringing of the polymeric tubing through one set of aligned holes in the collapsed frame sections instead of stringing the tubing through each frame section separately.
In operation, the apparatus of this invention can be used to exchange heat between two fluidso Representative fluids include sulfuric acid 25 of different strengths and different temperatures.
The apparatus can be used with liquids inside the tubes and gas on the outside, for example, sulfur dioxide gas on the outside and water in the tubes.
The appara~us of this invention is most often used to 30 exchange heat from one fluid to another fluid where one or both of the fluids is highl~ corrosive. The cleaner of the two fluids should generally be used inside the tubes to prevent fouling.
Claims (6)
1. In a heat exchange apparatus comprising at least one coil of spirally-wound polymeric tubing supported within a radial frame, the radial frame having flat sections that are positioned transversely to the run of the tubing, the improvement wherein the flat sections are circumferentially collapsible and wherein the apparatus further comprises central linking means which joins the flat sections and which linking means is adapted to combine with one or more similar apparatus.
2. A heat exchange apparatus of Claim 1 further comprising an outer frame onto which the radial frame is mounted.
3. A heat exchange apparatus of Claim 1 wherein the polymeric tubing is prepared from fluorocarbon resin.
4. A heat exchange apparatus of Claim 3 wherein the polymeric tubing comprises about 5-45 weight percent graphite.
5. A heat exchange apparatus of Claim 1 wherein the radial frame comprises four flat frame sections with each section being secured at a common center by linking means.
6. A heat exchange apparatus of Claim 2 functionally joined to at least one other similar heating exchange apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50296183A | 1983-06-10 | 1983-06-10 | |
| US502,961 | 1983-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1252082A true CA1252082A (en) | 1989-04-04 |
Family
ID=24000171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000456062A Expired CA1252082A (en) | 1983-06-10 | 1984-06-07 | Tubular heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS602894A (en) |
| CA (1) | CA1252082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003029775A2 (en) | 2001-10-01 | 2003-04-10 | Mykrolis Corporation | Thermoplastic apparatus for conditioning the temperature of a fluid |
| EP2275766A1 (en) | 2001-10-01 | 2011-01-19 | Entegris, Inc. | Tubular heat or mass exchange apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105065A (en) * | 1977-03-07 | 1978-08-08 | Ecodyne Corporation | Heat exchanger |
| JPS589917B2 (en) * | 1977-08-25 | 1983-02-23 | 日進ケミカル工業株式会社 | Heat exchange equipment for chemical liquids |
-
1983
- 1983-08-26 JP JP15516283A patent/JPS602894A/en active Pending
-
1984
- 1984-06-07 CA CA000456062A patent/CA1252082A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003029775A2 (en) | 2001-10-01 | 2003-04-10 | Mykrolis Corporation | Thermoplastic apparatus for conditioning the temperature of a fluid |
| EP2275766A1 (en) | 2001-10-01 | 2011-01-19 | Entegris, Inc. | Tubular heat or mass exchange apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS602894A (en) | 1985-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20060404 |