CN221037019U - Novel steel lining tetrafluoro tube plate - Google Patents
Novel steel lining tetrafluoro tube plate Download PDFInfo
- Publication number
- CN221037019U CN221037019U CN202322716212.7U CN202322716212U CN221037019U CN 221037019 U CN221037019 U CN 221037019U CN 202322716212 U CN202322716212 U CN 202322716212U CN 221037019 U CN221037019 U CN 221037019U
- Authority
- CN
- China
- Prior art keywords
- tetrafluoro
- composite layer
- carbon steel
- tube plate
- steel substrate
- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 24
- 239000010962 carbon steel Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000013329 compounding Methods 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 10
- 229910010271 silicon carbide Inorganic materials 0.000 description 10
- 238000007723 die pressing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
A novel steel lined tetrafluoro tube sheet, characterized in that: the heat exchange device comprises a round carbon steel substrate, wherein a plurality of heat exchange tube holes are formed in the carbon steel substrate, a plurality of fixing flange holes are uniformly distributed on the outer edge of the carbon steel substrate, and a tetrafluoro composite layer is arranged on the outer surface of the carbon steel substrate; in summary, the utility model is formed by compounding three materials of a carbon steel substrate, a PFA coating and a PTFE composite layer, compared with the traditional tetrafluoro tube plate, the manufacturing cost is reduced by 30 percent, compared with fusible tetrafluoro PFA, the PTFE composite layer has better mechanical property, and the addition of the PTFE composite layer can also improve the overall performance of the steel-lined tetrafluoro tube plate; the PTFE composite layer in the novel steel-lined tetrafluoro tube plate replaces most of the expensive PFA resin, and the manufacturing cost of the steel-lined tetrafluoro tube plate is reduced to a great extent.
Description
Technical Field
The utility model belongs to the technical field of chemical mechanical equipment, and particularly relates to a novel steel lining tetrafluoro tube plate.
Background
In recent years, with the rapid popularization of silicon carbide heat exchangers, silicon carbide tube type heat exchangers are widely applied to industries such as fine chemical industry, biological medicine, metallurgical acid washing, fluorine chemical industry and the like. The core components of the silicon carbide heat exchanger are in addition to the silicon carbide heat exchange tubes, and the pressure bearing performance and the sealing effect of the silicon carbide heat exchanger mainly depend on the technical level of tube plate manufacturing, so that the tube plate of the silicon carbide heat exchanger is particularly important.
With the iterative updating of manufacturing technology, silicon carbide heat exchanger tube plates have been developed from pure tetrafluoro tube plates to tetrafluoro+glass fiber tube plates and tetrafluoro+steel plate mould pressing sintering tube plates, and finally steel lining fusible tetrafluoro (PFA, FEP) tube plates to date; for the silicon carbide heat exchanger, the steel lining fusible tetrafluoro (PFA, FEP) tube plate can greatly enhance the use stability of equipment, but the price of the fusible tetrafluoro (PFA, FEP) is often several times higher than that of common suspension tetrafluoro resin powder, so that the manufacturing cost of the whole tube plate is high, the manufacturing cost of the silicon carbide heat exchanger is finally raised, and the popularization of the silicon carbide heat exchanger to more industries is influenced.
Disclosure of utility model
The utility model aims to provide a novel steel lining tetrafluoro tube plate and solve the technical problem that the manufacturing cost of the conventional steel lining fusible tetrafluoro tube plate is high.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The novel steel lining tetrafluoro tube plate comprises a circular carbon steel substrate, a plurality of heat exchange tube holes are formed in the carbon steel substrate, a plurality of fixing flange holes are uniformly distributed on the outer edge of the carbon steel substrate, a tetrafluoro composite layer is arranged on the outer surface of the carbon steel substrate, and a PTFE composite layer is arranged on the tetrafluoro composite layer on the upper surface of the carbon steel substrate.
Further, the tetrafluoro composite layer is a PFA coating or an FEP coating.
Compared with the prior art, the utility model has the beneficial effects that: the utility model is formed by compounding three materials of a carbon steel substrate, a PFA coating and a PTFE composite layer, compared with the traditional tetrafluoro tube plate, the manufacturing cost is reduced by 30 percent, compared with fusible tetrafluoro PFA, the PTFE composite layer has better mechanical properties, and the addition of the PTFE composite layer can also improve the overall performance of the steel lined tetrafluoro tube plate; the PTFE composite layer in the novel steel-lined tetrafluoro tube plate replaces most of the expensive PFA resin, and the manufacturing cost of the steel-lined tetrafluoro tube plate is reduced to a great extent.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a novel steel lined tetrafluoro tube sheet of the present utility model;
FIG. 2 is a state diagram of a first mold press compounding in the production of a new steel lined tetrafluoro tube sheet;
fig. 3 is a state diagram of a second mold press compounding in the production of a new steel lined tetrafluoro tube sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model is described in further detail below with reference to examples.
The utility model provides a concrete embodiment of a novel steel lining tetrafluoro tube plate:
As shown in fig. 1, the novel steel lined tetrafluoro tube plate comprises a circular carbon steel substrate 1, a plurality of heat exchange tube holes 2 are formed in the carbon steel substrate 1, a plurality of fixing flange holes 5 are uniformly distributed on the outer edge of the carbon steel substrate 1, a tetrafluoro composite layer 6 is arranged on the outer surface of the carbon steel substrate 1, a PTFE composite layer 7 is arranged on the tetrafluoro composite layer 6 on the upper surface of the carbon steel substrate 1, and the tetrafluoro composite layer 6 is a PFA coating or an FEP coating.
When the novel steel lining tetrafluoro tube plate of the embodiment is produced, a PFA coating (fusible polytetrafluoroethylene resin) is heated and kept warm and then becomes a molten state, the requirement of high-temperature die pressing fluidity is met, preliminary processing and punching are carried out on a carbon steel substrate 1, then the PFA coating accords with the surface of the carbon steel substrate 1 in a hot-melt die pressing mode (shown in figure 2), then the upper surface of the carbon steel tube plate compounded by the first PFA coating die pressing is cleaned, a PTFE composite layer 7 is overlapped on the upper surface and is added into a die (shown in figure 3) of secondary die pressing together, the die is loaded and then enters a sintering furnace again for high-temperature heating, the die is pressed on a die pressing machine after the die is discharged for secondary die pressing, the PTFE composite layer 7 and the PFA coating are completely fused into a whole, the steel lining tetrafluoro tube plate blank is obtained after the die is naturally cooled to room temperature, and finally the novel steel lining tetrafluoro tube plate is obtained by precision processing of a processing center.
It should be noted that in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A novel steel lined tetrafluoro tube sheet, characterized in that: the heat exchange tube comprises a circular carbon steel substrate, wherein a plurality of heat exchange tube holes are formed in the carbon steel substrate, a plurality of fixing flange holes are uniformly distributed on the outer edge of the carbon steel substrate, a polytetrafluoroethylene composite layer is arranged on the outer surface of the carbon steel substrate, and a PTFE composite layer is arranged on the polytetrafluoroethylene composite layer on the upper surface of the carbon steel substrate.
2. A novel steel lined tetrafluorotube sheet as claimed in claim 1 wherein: the tetrafluoro composite layer is a PFA coating or an FEP coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322716212.7U CN221037019U (en) | 2023-10-10 | 2023-10-10 | Novel steel lining tetrafluoro tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322716212.7U CN221037019U (en) | 2023-10-10 | 2023-10-10 | Novel steel lining tetrafluoro tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221037019U true CN221037019U (en) | 2024-05-28 |
Family
ID=91138159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322716212.7U Active CN221037019U (en) | 2023-10-10 | 2023-10-10 | Novel steel lining tetrafluoro tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221037019U (en) |
-
2023
- 2023-10-10 CN CN202322716212.7U patent/CN221037019U/en active Active
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