CN118293732A - Wave type graphite pore plate heat exchange module - Google Patents
Wave type graphite pore plate heat exchange module Download PDFInfo
- Publication number
- CN118293732A CN118293732A CN202311135865.4A CN202311135865A CN118293732A CN 118293732 A CN118293732 A CN 118293732A CN 202311135865 A CN202311135865 A CN 202311135865A CN 118293732 A CN118293732 A CN 118293732A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- wave
- graphite
- exchange module
- plate
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 31
- 239000010439 graphite Substances 0.000 title claims abstract description 31
- 239000011148 porous material Substances 0.000 title claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 5
- 239000007770 graphite material Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 241000510097 Megalonaias nervosa Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid 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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- 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
- F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
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
The invention provides a wave-shaped graphite pore plate heat exchange module, which is formed by sequentially and closely connecting a plurality of wave-shaped templates; each template is provided with a front wavy plate surface and a back wavy plate surface. The radian or the depth of the wave crest surface and the wave trough surface of the two plate surfaces are different, and when two adjacent modules are close, a longitudinal flow channel is formed between the two adjacent modules, so that a fluid is provided to flow through; another fluid flows in straight lines inside the die plate, and two fluids at different temperatures exchange heat through the plate walls of the die plate. The invention can be assembled and combined in a modularized way, the assembling size and the fluid flow are mutually adapted, and the assembling and the disassembling are flexible. Moreover, dirt or dust in the flow channels between the plates is easily removed.
Description
Technical Field
The invention provides graphite heat exchange equipment.
Background
The graphite material has acid corrosion resistance and good heat conductivity, the graphite material core body is made into a block hole structure which is vertically and horizontally separated from each other, when two mediums pass through each other, the high-temperature medium continuously transmits heat to the graphite heat exchanger, and the low-temperature medium continuously obtains heat from the heat exchanger, so that heat exchange is realized.
The graphite heat exchanger has good corrosion resistance, difficult scaling of heat transfer surface and good heat transfer performance, but the graphite material is easy to be brittle, has low bending resistance and tensile strength, can only be used for low pressure, and has the block porous structure with the best bearing capacity, the working pressure is generally only 0.11-0.65 megapascal, and the graphite heat exchanger has high cost, large volume and little use.
Application number: 2011101421682 discloses a block hole type graphite heat exchange block, which comprises longitudinal through holes uniformly arranged on the plane of a graphite heat exchange block body and transverse through holes uniformly arranged on the side surface of the graphite heat exchange block body, wherein the longitudinal through holes and the transverse through holes are alternately arranged in the graphite body at intervals, and the longitudinal through holes and the transverse through holes are alternately arranged in double rows at intervals. The invention is that two fluid through holes are arranged in the graphite material, the material is heated unevenly, and cracks are easy to generate.
Disclosure of Invention
The invention aims to: overcomes the defects of complex internal pipeline and easy occurrence of cracks of the traditional graphite heat exchanger, and provides a wave-shaped graphite pore plate heat exchange module which is not easy to occur cracks and is easy to remove dust.
The technical scheme is as follows:
the invention provides a wavy (or washboard type) graphite heat exchange template, which is formed by sequentially and closely connecting a plurality of wavy templates.
Each template has a front wavy plate surface and a back wavy (with a crest surface and a trough surface) plate surface. The wave-like shape in the present application refers to a surface having a continuous (single or multiple wave numbers) or discontinuous curved arc shape (a flat surface spaced by a flat shape to facilitate contact between adjacent plates), or a shape of bending grooves having different depths.
The radian (or depth) of the wave crest or the wave trough of the longitudinal section (same position) of the two plate surfaces is different, so that when different surfaces of two adjacent modules are close, a longitudinal flow channel is formed between the two adjacent modules, and fluid (cooling medium or heating medium) can flow through the two adjacent modules.
The interior of each graphite heat exchange template is provided with a straight pipeline for the flow of another fluid (heating medium or cooling medium) to pass through.
One fluid flows in a longitudinal flow channel between two adjacent templates, the other fluid flows in a straight pipeline inside the templates, and the two fluids with different temperatures do not contact each other, but exchange heat through the template walls (good heat transfer performance of graphite) of the templates, so that the heat medium is cooled, and the refrigerant is preheated.
The upper end and the lower end (two ends of the longitudinal pipeline) of the graphite heat exchange template are respectively provided with an end sealing cover and a drainage space, so that the flue gas can flow in and out in a distributed manner.
The left and right ends or the upper and lower ends of the module may be glued (e.g., bonded) or mechanically sealed (e.g., clamped).
The straight pipeline and the longitudinal flow passage can be arranged in parallel or perpendicular to each other. Preferably, the straight pipelines are transversely arranged and mutually perpendicular to the longitudinal flow channels, and the flowing directions of the two fluids are not in the same straight line, so that the heat transfer is realized by the diffusion of the pipe walls, the wide distribution transfer of the cold quantity of the refrigerant and the heat quantity of the heating medium is facilitated, and the connection of the external pipelines is also facilitated (the pipe end joints of the two pipelines are far apart and are not easy to interfere with each other).
The flat pipeline is preferred to be circulated with air, so that the pipeline with smaller diameter is clean and is not easy to be blocked; the longitudinal flow channels (gaps between the wave plate surfaces) between the templates are used for the flue gas to walk, the geometric dimension and the surface area are large, and the dust is easy to purge and collect.
The adjacent templates are connected in a movable mode or an assembled mode, so that modularization splicing and installation are facilitated, and later disassembly and cleaning are facilitated.
Preferably, the wave plate surface of the template is in a discontinuous wave shape, and a platform is arranged between adjacent wave troughs, so that the contact area and the connection area of the adjacent templates are increased, and the friction damage is reduced; the bonding strength is also enhanced, dislocation is not easy, and the tightness between adjacent straight pipelines of the smoke can be improved.
The thickness of the template, the pipe diameter of the internal straight pipeline, the size of the longitudinal flow passage and the like can be changed according to requirements. The design of the wave-shaped structure can be varied in many ways. Heat exchange capacity, efficiency, mechanical strength and corrosion resistance are considered, and assembling and disassembling flexibility and cleaning and maintenance convenience are considered.
Oxidation-resistant or permeation-resistant coatings, such as silicon carbide coatings with high oxidation corrosion resistance, are preferably used on corrugated board surfaces.
Or the inorganic cementing coating formed by mixing tungsten carbide or titanium carbide powder with sodium silicate solution has higher temperature resistance, strong binding power, higher strength, good acid resistance and heat resistance and poor alkali resistance and water resistance. And meanwhile, the device is convenient to soak, detach and splice again by adopting alkaline solution.
The beneficial effects are that:
the invention can be assembled and combined in a modularized way, the assembling size and the fluid flow are mutually adapted, and the assembling and the disassembling are flexible.
The different parts of the inner pipeline and the outer pipeline and the runner are arranged, so that the graphite material is heated uniformly, and is not easy to generate thermal expansion and cold contraction deformation and even crack.
In addition, dirt or dust in the flow channels between the plates is easy to remove, and the solution with large dust content and large amount of smoke or solid impurities can be used.
Drawings
FIG. 1 is a schematic view of a longitudinal cross-sectional structure of the present invention;
FIG. 2 is a schematic illustration of the corrugated graphite orifice plate heat exchange module of FIG. 1;
FIG. 3 is a longitudinal cross-sectional view of a single wave number structure of the present invention;
Fig. 4 is a view of the corrugated graphite orifice plate heat exchange module of fig. 3.
In the figure, 1-front panel; 2-upper end face; 3-straight pipelines; 4-a back panel; 5-lower end face; 6-a flat table top; 7-trough; 8-wave crest; 10-longitudinal flow channels.
Detailed Description
Embodiment one:
The wave type graphite pore plate heat exchange module shown in fig. 2 is formed by sequentially and closely connecting two wave type templates. As shown in fig. 1, each die plate has a front and a back wave-like plate surface, which means a surface with discontinuous curved arcs, with a plateau between adjacent peaks or troughs. The curvature of the peaks or valleys of two panels at the same height is different so that when the surfaces of two adjacent modules are brought together, a longitudinal flow channel 10 is formed therebetween, providing a fluid communication.
Each graphite heat exchange die plate has straight lines 3 inside to provide another fluid flow through.
The wavy plate surface is provided with an oxidation-resistant silicon carbide coating. The left end and the right end or the upper end and the lower end of the module can be sealed mechanically by clamping, so that the module is convenient to detach, clean and assemble quickly.
Embodiment two:
The wave type graphite pore plate heat exchange module shown in fig. 4 is formed by sequentially and closely connecting two wave type templates. As shown in fig. 3, each form has a front and a back wavy plate surface, which refers to a curved arcuate surface. A longitudinal flow passage 10 is formed therebetween, which is capable of providing a flow of a heating medium fluid (e.g., flue gas); each graphite heat exchange die plate has a straight pipeline 3 inside, which can provide another refrigerant fluid (such as air) to flow through.
The left end and the right end or the upper end and the lower end of the module are sealed by glue; the glue seal is an inorganic glue formed by mixing titanium carbide powder and sodium silicate solution, is easy to assemble and is cleaned and disassembled by caustic soda during disassembly.
Claims (6)
1. A wave type graphite pore plate heat exchange module is formed by sequentially attaching a plurality of wave type templates together in a clinging manner, wherein each template is provided with a front surface (1) and a wave type back surface (4), and is characterized in that: the wavy surface is provided with continuous or discontinuous bending arcs or bending grooves with different depths; the radian of the wave crest (8) or the wave trough (7) of the two plate surfaces is different or the depth is different, so that when the surfaces of two adjacent modules are close, a longitudinal flow channel (10) is formed between the two adjacent modules, and fluid circulation can be provided;
Each graphite heat exchange die plate has a straight line (3) inside to provide another fluid flow through.
2. The corrugated graphite aperture plate heat exchange module of claim 1, wherein: the wave plate surface of the template is in a discontinuous wave shape, and a platform is arranged between adjacent wave crests or wave troughs.
3. A corrugated graphite orifice plate heat exchange module as claimed in claim 1 or claim 2 wherein: the upper end face (2) and the lower end face (5) of the graphite heat exchange template are respectively provided with an end sealing cover.
4. A corrugated graphite aperture plate heat exchange module as recited in claim 3 wherein: the left and right end surfaces or the upper and lower end surfaces of the module are sealed by glue.
5. A corrugated graphite orifice plate heat exchange module as claimed in claim 1 or claim 2 wherein: the wavy plate surface is provided with an oxidation-resistant silicon carbide coating.
6. The corrugated graphite aperture plate heat exchange module as recited in claim 4 wherein: the glue seal is an inorganic glue formed by mixing tungsten carbide or titanium carbide powder with sodium silicate solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311135865.4A CN118293732A (en) | 2023-09-05 | 2023-09-05 | Wave type graphite pore plate heat exchange module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311135865.4A CN118293732A (en) | 2023-09-05 | 2023-09-05 | Wave type graphite pore plate heat exchange module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118293732A true CN118293732A (en) | 2024-07-05 |
Family
ID=91677185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311135865.4A Pending CN118293732A (en) | 2023-09-05 | 2023-09-05 | Wave type graphite pore plate heat exchange module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118293732A (en) |
-
2023
- 2023-09-05 CN CN202311135865.4A patent/CN118293732A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |