CN101738131B - Heat exchanger made of composite materials - Google Patents
Heat exchanger made of composite materials Download PDFInfo
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- CN101738131B CN101738131B CN2008102267365A CN200810226736A CN101738131B CN 101738131 B CN101738131 B CN 101738131B CN 2008102267365 A CN2008102267365 A CN 2008102267365A CN 200810226736 A CN200810226736 A CN 200810226736A CN 101738131 B CN101738131 B CN 101738131B
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- heat exchanger
- tube
- tube sheet
- composite materials
- end socket
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Abstract
The invention discloses a heat exchanger, in particular to a heat exchanger made of composite materials. The heat exchanger comprises a shell, a heat exchanging tube, a tube sheet and an end socket, wherein, the shell is made of polypropylene or carbon steel; the heat exchanging tube is arranged in the shell and is made of graphite modified F46; the tube sheet is arranged at two ends of the heat exchanging tube and is made of polytetrafluoroethylene; and the end socket is arranged at the outer side of the tube sheet and is made of the carbon steel. Fluorinated ethylene propylene is sprayed on the surface of the inner side of the end socket. The heat exchanger of the invention has excellent corrosion resistance, higher temperature tolerance, higher service pressure (the tube stroke is less than or equal to 1MPa, and the shell stroke is less than or equal to 0.5MPa), has wide application field and lower manufacture cost, and can be accepted by the majority of users.
Description
Technical field
The present invention is a kind of heat exchanger, is specially a kind of heat exchanger made of composite materials.
Background technology
Heat exchanger also claims heat exchanger, is widely used in many industrial circles such as chemical industry, metallurgy, pharmacy.Because temperature, pressure and the medium of its use are different, so heat exchanger will be made by different materials.The material of making heat exchanger at present mainly contains carbon steel, stainless steel, titanium, aluminium, lead, copper, glass, plastics, graphite etc.
Heat exchanger has many structural shapes, as shell and tube, fountain, spiral plate type, flat etc.Wherein, account for about 40% of heat exchanger applications amount with shell and tube application quantity maximum.
Though a variety of tubular heat exchangers of being made by different materials are arranged at present, and it has certain limitation in the use, all can only be applied to certain scope of application, this scope is by making material and serviceability temperature, pressure, the decision of medium kind.Has withstand voltage low, shortcoming that heatproof is low for the tubular heat exchanger made from nonmetallic materials; And has the shortcoming of corrosion resistance difference for the heat exchanger made from metal material.
Concentrated hydrochloric acid, especially high temperature concentrated hydrochloric acid are a kind of strong corrosive medias, and use occasion is a lot, and this medium is except that the Titanium heat exchanger made, and the heat exchanger of other material system all can not be used.And Titanium costs an arm and a leg, and uses the heat exchanger cost of its making very high, and general enterprise is difficult to bear.
Summary of the invention
The objective of the invention is to overcome existing tubular heat exchanger withstand voltage low, heatproof is low, the deficiency of corrosion resistance difference, and a kind of heat exchanger made of composite materials is provided.Advantages such as each parts in this heat exchanger adopt different materials to make, and heat exchanger has heatproof height, withstand voltage height like this, corrosion resistance is strong, application is extensive, cost is low.
To achieve these goals, the present invention has taked following technical scheme.This heat exchanger comprises housing, be arranged on heat exchanger tube in the housing, be arranged on the heat exchanger tube two ends tube sheet, be arranged on the end socket in the tube sheet outside.Described housing is made by polypropylene or carbon steel, and described tube sheet is made by polytetrafluoroethylene (PTFE), and described end socket is made by carbon steel, is coated with perfluoroethylene-propylene on the medial surface of described end socket.The material component of making heat exchanger tube is as follows: perfluoroethylene-propylene accounts for that 49～54wt%, graphite account for 45～50wt%, coupling agent accounts for 0.5～1wt%.
It is rare to be coated with perfluoroethylene third at the inner surface of the housing of being made by carbon steel.
Syndeton between heat exchanger tube and the tube sheet is: be used for being processed with the expanded hole that the degree of depth is the part tube plate thickness in the hole that heat exchanger tube passes on tube sheet, securing member is arranged in this expanded hole and is connected with tube sheet by screw thread, is provided with the O RunddichtringO between the bottom of securing member and tube sheet.
Described securing member is made by polytetrafluoroethylene (PTFE).
Described O RunddichtringO is made by rubber.
Between O RunddichtringO and securing member, be provided with annular slab.
Described annular slab is made by polypropylene, perfluoroethylene-propylene or polytetrafluoroethylene (PTFE).
The tubular heat exchanger that this member of making of different materials is assembled into, its tube side can anti-any medium (comprising chloroazotic acid) corrosion, long-term serviceability temperature can be up to 200 ℃, working pressure≤1MPa.The visual service condition of its shell side is come selected member, its pressure≤0.4MPa, temperature≤110 °, for the not strong medium of corrosivity, can select for use polypropylene (PP) to make, as corrosive medium strong (PP is not anti-), can select for use the interior spraying of carbon steel shell F46 to make, like this, the shell side serviceability temperature also can be up to 200 ℃, and working pressure can reach 0.5MPa.
The heat exchanger that this different member is made by different materials, its application is extensive., nonmetallic materials heatproof not anti-corrosion applicable to common metal, the withstand voltage low occasion that can not use, its cost is more much lower than Titanium heat exchanger made, can replace the Titanium heat exchanger made.
Figure of description
Fig. 1 fixed tube-sheet exchanger
Fig. 2 heat exchanger tube and tube sheet johning knot composition
Among the figure: 1, housing, 2, heat exchanger tube, 3, tube sheet, 4, end socket, 5, annular slab, 6, securing member, 7, the O RunddichtringO.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment 1:
As shown in Figure 1, tubular heat exchanger comprises housing 1, is arranged on the heat exchanger tube 2 in the housing 1, the end socket 4 that is arranged on the tube sheet 3 at heat exchanger tube 2 two ends and is arranged on tube sheet 3 outsides.
The visual service condition of housing 1 (comprising adapter) adopts polypropylene (PP), carbon steel or carbon steel shell internal layer spraying F46 to make.As being carbon steel shell internal layer spraying F46, then the shell side of heat exchange also can be used under the condition of strong corrosive media, temperature≤200 ℃, pressure≤0.5MPa.
The nonmetallic materials heat exchanger made has a major defect, is exactly that heat exchanger tube 2 is not firm with the syndeton of tube sheet 3.For this reason, the present embodiment kind has adopted a kind of novel syndeton, be specially: on tube sheet 3, be used for being processed with the expanded hole that the degree of depth is the part tube plate thickness in the hole that heat exchanger tube 2 passes, securing member 6 is arranged in this expanded hole and by screw thread and tube sheet 3 and is connected, between the bottom of securing member 6 and tube sheet 3, be provided with O RunddichtringO 7, between O RunddichtringO 7 and securing member 6, be provided with annular slab 5.Annular slab 5 visual service conditions adopt polypropylene, perfluoroethylene-propylene or polytetrafluoroethylene (PTFE) to make.Securing member 6 adopts polytetrafluoroethylene (PTFE) (F4) to make, and " O " RunddichtringO 7 is looked service condition and made with different types of rubber.
Perfluoroethylene-propylene (F46) has extremely strong decay resistance, can anti-chloroazotic acid and all Korrosionsmedium, and its long-term serviceability temperature can reach 200 ℃.Natural flaky graphite powder also has the corrosion resistance of F46, its serviceability temperature can be higher, with the two mixing and add coupling agent, the graphite modified perfluoroethylene-propylene heat exchanger tube of making Φ 20 * 2mm or other specification with plastic extruders also has aforementioned properties, and the working pressure of its heat exchanger tube can reach 1MPa.This exchange performance is than simple metal difference, but high more a lot of than the heat exchanger tube of plastics, enamel, glass system, can replace titanium control heat exchanger, be used for the strong corrosive media of elevated pressures, temperature, and cost is not high, susceptible to user acceptance.
The heat exchanger of present embodiment kind, its being able to bear strong corrosion property of tube side medium can be used under the service condition of pressure≤1MPa for a long time≤200 ℃ of temperature.
Embodiment 2:
Present embodiment is substantially the same manner as Example 1, and difference is only adopted in the material component difference that is used to make heat exchanger tube 2.Material component in the present embodiment is respectively by mass percentage: perfluoroethylene-propylene accounts for that 54wt%, graphite account for 45wt%, titanate esters accounts for 1wt%.
Embodiment 3:
Present embodiment is substantially the same manner as Example 1, and difference is only adopted in the material component difference that is used to make heat exchanger tube 2.Material component in the present embodiment is respectively by mass percentage: perfluoroethylene-propylene accounts for that 50wt%, graphite account for 49.5wt%, titanate esters accounts for 0.5wt%.
Embodiment 4:
Present embodiment is substantially the same manner as Example 1, and difference is only adopted in the material component difference that is used to make heat exchanger tube 2.Material component in the present embodiment is respectively by mass percentage: perfluoroethylene-propylene accounts for that 54wt%, graphite account for 45.3wt%, titanate esters accounts for 0.7wt%.
Claims (7)
1. heat exchanger made of composite materials, comprise housing (1), be arranged on heat exchanger tube (2) in the housing (1), be arranged on heat exchanger tube (2) two ends tube sheet (3), be arranged on the end socket (4) in tube sheet (3) outside; It is characterized in that: described housing (1) is made by polypropylene or carbon steel, and described tube sheet (3) is made by polytetrafluoroethylene (PTFE), and described end socket (4) is made by carbon steel, is coated with perfluoroethylene-propylene on the inner surface of end socket (4); The material component of making heat exchanger tube (2) is as follows: perfluoroethylene-propylene accounts for that 49～54wt%, graphite account for 45～50wt%, coupling agent accounts for 0.5～1wt%.
2. heat exchanger made of composite materials according to claim 1 is characterized in that: it is rare to be coated with perfluoroethylene third at the inner surface of the housing of being made by carbon steel (1).
3. according to claim 1 or the described heat exchanger made of composite materials of claim 2, it is characterized in that: the syndeton between heat exchanger tube (2) and the tube sheet (3) is: be used for being processed with the expanded hole that the degree of depth is the part tube plate thickness in the hole that heat exchanger tube (2) passes on tube sheet (3), securing member (6) is arranged in this expanded hole and is connected with tube sheet (3) by screw thread, is provided with O RunddichtringO (7) between the bottom of securing member (6) and tube sheet (3).
4. heat exchanger made of composite materials according to claim 3 is characterized in that: described securing member (6) is made by polytetrafluoroethylene (PTFE).
5. heat exchanger made of composite materials according to claim 3 is characterized in that: described O RunddichtringO (7) is made by rubber.
6. the syndeton of Tube Sheet of Heat Exchanger according to claim 3 and tube sheet is characterized in that: be provided with annular slab (5) between O RunddichtringO (7) and securing member (6).
7. the syndeton of Tube Sheet of Heat Exchanger according to claim 6 and tube sheet is characterized in that: described annular slab (5) is made by polypropylene, perfluoroethylene-propylene or polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102267365A CN101738131B (en) | 2008-11-21 | 2008-11-21 | Heat exchanger made of composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102267365A CN101738131B (en) | 2008-11-21 | 2008-11-21 | Heat exchanger made of composite materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101738131A CN101738131A (en) | 2010-06-16 |
| CN101738131B true CN101738131B (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102267365A Expired - Fee Related CN101738131B (en) | 2008-11-21 | 2008-11-21 | Heat exchanger made of composite materials |
Country Status (1)
| Country | Link |
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| CN (1) | CN101738131B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837015A (en) * | 2012-11-23 | 2014-06-04 | 蓝瑚科技有限公司 | Spray type shell-and-tube heat exchanger adopting nonmetal heat exchange tubes |
| CN105241281A (en) * | 2015-09-08 | 2016-01-13 | 洛阳明远石化技术有限公司 | Heat exchanger provided with non-metal heat exchange pipe bundle |
| CN105180682A (en) * | 2015-09-08 | 2015-12-23 | 洛阳明远石化技术有限公司 | Heat exchanger having nonmetal heat exchange component |
| CN105157453A (en) * | 2015-09-08 | 2015-12-16 | 洛阳明远石化技术有限公司 | Heat exchanger with nonmetal heat exchange tube bundle |
| CN106197077A (en) * | 2016-07-25 | 2016-12-07 | 铜陵海源超微粉体有限公司 | Graphite heat exchanger for power production |
| CN106967266A (en) * | 2017-04-20 | 2017-07-21 | 王维斌 | A kind of high corrosion resistant composite of high conduction and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1276908A (en) * | 1968-12-26 | 1972-06-07 | Liquid Nitrogen Processsing Co | Tetrafluoroethylene polymer composition |
| CN87217501U (en) * | 1987-12-24 | 1988-10-19 | 郝沛山 | Full-plastic heat exchanger |
| CN2237831Y (en) * | 1995-08-02 | 1996-10-16 | 李士贤 | Graphite modified poly-perfluoroethyl propene heat exchanger |
| JP3501181B2 (en) * | 1994-11-16 | 2004-03-02 | 大豊工業株式会社 | One-way clutch end bearing |
| CN2677856Y (en) * | 2003-09-18 | 2005-02-09 | 贾守心 | Corrosion-resistance heat exchanger |
-
2008
- 2008-11-21 CN CN2008102267365A patent/CN101738131B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1276908A (en) * | 1968-12-26 | 1972-06-07 | Liquid Nitrogen Processsing Co | Tetrafluoroethylene polymer composition |
| CN87217501U (en) * | 1987-12-24 | 1988-10-19 | 郝沛山 | Full-plastic heat exchanger |
| JP3501181B2 (en) * | 1994-11-16 | 2004-03-02 | 大豊工業株式会社 | One-way clutch end bearing |
| CN2237831Y (en) * | 1995-08-02 | 1996-10-16 | 李士贤 | Graphite modified poly-perfluoroethyl propene heat exchanger |
| CN2677856Y (en) * | 2003-09-18 | 2005-02-09 | 贾守心 | Corrosion-resistance heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| CN 2237831 , |
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| Publication number | Publication date |
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| CN101738131A (en) | 2010-06-16 |
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Granted publication date: 20111214 Termination date: 20131121 |