CN109708498A - A kind of novel graphite corrugated heat-exchange plate - Google Patents
A kind of novel graphite corrugated heat-exchange plate Download PDFInfo
- Publication number
- CN109708498A CN109708498A CN201910113229.9A CN201910113229A CN109708498A CN 109708498 A CN109708498 A CN 109708498A CN 201910113229 A CN201910113229 A CN 201910113229A CN 109708498 A CN109708498 A CN 109708498A
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- Prior art keywords
- graphite
- heat
- exchange plate
- corrugated heat
- hole
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 69
- 239000010439 graphite Substances 0.000 title claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of novel graphite corrugated heat-exchange plates, including frame, heat transfer zone and cloth liquid zone are equipped in the frame, the graphite radiating plate of several superpositions is equipped in the heat transfer zone, the graphite radiating plate has ripply structure type using both side surface, the section of the graphite radiating plate wave structure form equal using thickness, the frame quadrangle is respectively equipped with through-hole.The thickness of plate is equal in graphite corrugated heat-exchange plate of the invention, and heat exchange efficiency is better than round block hole graphite heat exchange block and common graphite heat exchanger plates, and plate decorative pattern, which can according to need, is processed into different form.
Description
Technical field
The present invention relates to a kind of heat exchanger plates, and in particular to a kind of novel graphite corrugated heat-exchange plate.
Background technique
Existing graphite heat exchanger plates section (as shown in Figure 3), it is general using in the groove milling of graphite plate on piece, (material circulation is logical
Road) form, the wall thickness of heat exchanger plates material circulation passage groove top and slot bottom is each unequal, and wherein the wall thickness of slot bottom is most thin, groove top
Wall thickness it is maximum.It follows that the thermal resistance in the different place of thickness is not also identical on heat exchanger plates.The thin local thermal resistance of wall thickness is small
Heat transfer efficiency is high, and the big big heat transfer efficiency of local thermal resistance of wall thickness is low.
Summary of the invention
Goal of the invention: the purpose of the present invention is to solve deficiencies in the prior art, provide a kind of novel graphite ripple
The thickness of heat exchanger plates, plate is equal, and heat exchange efficiency is better than round block hole graphite heat exchange block and common graphite heat exchanger plates, and plate decorative pattern can
To be processed into different form as needed.
Technical solution: a kind of novel graphite corrugated heat-exchange plate of the present invention, including frame, interior be equipped with of the frame are changed
Hot-zone and cloth liquid zone, the graphite radiating plates of several staggeredly superpositions are equipped in the heat transfer zone, and the graphite radiating plate is adopted
Have ripply structure type, the section of the graphite radiating plate wave structure shape equal using thickness with both side surface
Formula, the frame quadrangle are respectively equipped with through-hole.
Further, the ripple is using character form structure at an angle.
Further, the angle [alpha] of the ripple is 60 °, 90 ° or 120 °.
Further, the font of the ripple is using " people " font, " W " font or " S " font.
Further, the ripple uses trough body structure form.
Further, the width l of the ripple is 10-20mm.
Further, the wave structure with a thickness of 4-6mm.
Further, the through-hole includes cold side import hole, cold side outlet port hole, hot side import hole and hot side outlet hole.
The utility model has the advantages that beneficial effects of the present invention are as follows:
1, the thickness at each position of novel graphite heat exchanger plates plate is equal, and plate decorative pattern, which can according to need, is processed into not similar shape
Formula mainly has chevron shaped, W type and S type.Plate decorative pattern is staggered installation of during installation, when plate has slight deformation at the top of ripple
Contact point support mutually, certain compression shock can be resisted using this structure, prevents plate from becoming under abnormal impact
Shape damage；
2, fluid is narrow along complications between plate, like the channel flowing in labyrinth, forms complicated tortuous stream.The flowing of material
Direction and flow velocity constantly change, and strong turbulence effects are formd under lower flow velocity, to destroy boundary layer, reduce interface
Liquid film thermal resistance, effectively enhances heat-transfer effect.Simultaneously continually changing flow velocity and flow direction also allow the particulate matter in material always
It is in suspended state, is not easy deposition and bridging；
3, heat transfer coefficient is high: fluid constantly changes along complicated tortuous stream, the flow direction of material and flow velocity is done between plate,
Strong turbulence effects are formd under lower flow velocity, to destroy boundary layer, are reduced Interfacial Liquid Membranes thermal resistance, are effectively strengthened
Heat-transfer effect.Heat exchanger plates uniform wall thickness, heat exchange efficiency are better than round block hole graphite heat exchange block and common graphite heat exchanger plates.It conducts heat
Coefficient is 4-6 times of block cellular type graphite equipment, is 5-8 times of tubular graphite equipment；
4, the temperature difference is small: because of graphite heat transfer coefficient with higher itself and fluid turbulent flow strong between graphite heat exchanger plates
Effect can make the temperature of first and second fluid of graphite plate heat exchanger very close, ideally the temperature of first and second fluid
Difference approaches and 1-5 DEG C；
5, heat loss is small: compared to block hole-type graphite heat exchanger and tube-type graphite heat exchanger, graphite plate heat exchanger is only
There is sheet edges exposure in air, therefore heat loss is minimum.
Detailed description of the invention
Fig. 1 is heat exchanger plates structural schematic diagram of the invention；
Fig. 2 is the Section A-A cross-sectional view of Fig. 1；
Fig. 3 is existing heat exchanger plates schematic cross-section.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below.
A kind of novel graphite corrugated heat-exchange plate as depicted in figs. 1 and 2, including frame 1, the frame 1 is interior to be equipped with heat exchange
Area 2 and cloth liquid zone 3, the interior graphite radiating plates equipped with several staggeredly superpositions in the heat transfer zone 2, the graphite radiating plate are adopted
Have ripply structure type, the section of the graphite radiating plate wave structure shape equal using thickness with both side surface
Formula, described 1 four jiaos of frame are respectively equipped with through-hole.
As advanced optimizing for above-described embodiment:
Preferably, the ripple is using character form structure at an angle, wherein the angle [alpha] of the ripple is 60 °, 90 °
Or 120 °.
Preferably, the advanced process of novel graphite heat exchanger plates, in the corrugated stream of graphite plate on piece formation rule
Road, corrugated runner can according to need be processed into the font of ripple described in different form using " people " font, " W " font or
" S " font or other character form structures with fixture.
Preferably, the ripple uses trough body structure form.
Preferably, the width l of the ripple is 10-20mm, and it is suitable that specific developed width can be determined according to material
Width.
Preferably, the wave structure is changed from the corrugated cross-section of novel graphite heat exchanger plates with a thickness of 4-6mm
The tranverse sectional thickness at each position of hot plate is roughly equal, this thickness is better than the incorgruous pitch of holes of round block hole graphite heat exchange block, round block
The incorgruous hole of hole graphite heat exchange block is generally orthogonal, circular hole at regular intervals, bore edges minimum distance about 4-7mm.
Preferably, the through-hole includes cold side import hole 4, cold side outlet port hole 7, hot side import hole 6 and hot side outlet hole 5.
Of the invention is novel graphite heat exchanger plates, is mainly used in graphite plate heat exchanger, is graphite plate heat exchanger
Core component.The utility model graphite heat exchanger plates optimize the structure and moulding of original graphite heat exchanger plates, novel graphite heat exchanger plates with it is old
Graphite heat exchanger plates, which compare, can significantly improve the heat exchange efficiency of heat exchanger plates.
At work, in heat exchanger plates two sides, under the action of temperature difference heat transfer occurs heat exchanger for cold and hot fluid respectively.
There are three processes for heat transfer: first is that convective heat transfer of the hot fluid to heat exchanger plates, second is that by the heat transfer of graphite plate, third is that stone
Convective heat transfer of the black plate to cold fluid.According to Bo Liye law: in steady heat transfer, heat conduction amount Q in the unit time with
Heat-conducting area F and temperature gradientIt is directly proportional, it may be assumed that
Q-heat conduction rate, J/h in formula；
F-heat-conducting area , ㎡；
λ-thermal coefficient, W/ (mK)；
- temperature gradient, DEG C/m, it is positive with the raised direction of temperature.
The heat transfer process of heat exchanger plates is reduced to thermally conductive direction perpendicular to the single layer planomural diabatic process of heat exchanger plates wall surface.
Formula 1 can be carried out separating variables integral, can obtained by heat conduction rate when for the heat transfer of single layer planomural:
It is rewritable at
Q-heat conduction rate, J/h in formula；
F-heat-conducting area , ㎡；
λ-thermal coefficient, W/ (mK)；
δ-wall thickness, m；
△ t-△ t=(TW-tw), it is the temperature difference of two wall surfaces of heat transfer ratio, DEG C.
In formula 2Illustrate the thermal resistance in single wall heat transfer.It can be seen that graphite heat exchanger plates are constant (uniform) in material
The thinner thermal resistance of situation lower wall thickness is smaller, and wall thickness is bigger, and thermal resistance is bigger.It is smaller with piece of graphite heat exchange plate thickness, graphite heat exchanger plates
Heat transfer effect is better.
Graphite material belongs to fragile material, cannot pass through mold compression moulding as the moulding material of metal etc.It is old
Using the form in graphite plate on piece groove milling (material circulation passage), the circulation of heat exchanger plates material graphite heat exchanger plates (such as Fig. 3)
The wall thickness of channel groove top and slot bottom is each unequal, and wherein the wall thickness of slot bottom is most thin, and the wall thickness of groove top is maximum.By formula 2 it is found that heat exchange
The thermal resistance in the different place of thickness is not also identical on plate.The small heat transfer efficiency of the thin local thermal resistance of wall thickness is high, the big place of wall thickness
The big heat transfer efficiency of thermal resistance is low.
Novel graphite heat exchanger plates (such as Fig. 1 and 2) use advanced process, in the ripple of graphite plate on piece formation rule
Shape runner, corrugated runner, which can according to need, is processed into different form, mainly there is chevron shaped, W type and S type.From novel graphite
Seen on the corrugated cross-section of heat exchanger plates, the tranverse sectional thickness at each position of heat exchanger plates is roughly equal, thickness control in 5mm or so,
This thickness is better than the incorgruous pitch of holes of round block hole graphite heat exchange block.Have benefited from lesser wall thickness and the everywhere more uniform spy of thickness
Point, it was found from formula 2: the thermal resistance at each position of novel graphite heat exchanger plates is uniformly and thermal resistance numerical value is relatively low (compared to round block hole stone
Black heat transfer block and common graphite heat exchanger plates), there is more satisfactory heat-transfer effect.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (8)
1. a kind of novel graphite corrugated heat-exchange plate, including frame (1), the frame (1) is interior to be equipped with heat transfer zone (2) and cloth liquid zone
(3), it is characterised in that: the graphite radiating plate equipped with several staggeredly superpositions in the heat transfer zone (2), the graphite radiating plate
Piece has ripply structure type, the section of the graphite radiating plate wave structure equal using thickness using both side surface
Form, the frame (1) quadrangle are respectively equipped with through-hole.
2. a kind of novel graphite corrugated heat-exchange plate according to claim 1, it is characterised in that: the ripple is used in certain
The character form structure of angle.
3. a kind of novel graphite corrugated heat-exchange plate according to claim 1 or 2, it is characterised in that: the angle [alpha] of the ripple
It is 60 °, 90 ° or 120 °.
4. a kind of novel graphite corrugated heat-exchange plate according to claim 1 or 2, it is characterised in that: the font of the ripple
Using " people " font, " W " font or " S " font.
5. a kind of novel graphite corrugated heat-exchange plate according to claim 1 or 2, it is characterised in that: the ripple uses slot
Body structure type.
6. a kind of novel graphite corrugated heat-exchange plate according to claim 1 or 2, it is characterised in that: the width l of the ripple
For 10-20mm.
7. a kind of novel graphite corrugated heat-exchange plate according to claim 1, it is characterised in that: the thickness of the wave structure
For 4-6mm.
8. a kind of novel graphite corrugated heat-exchange plate according to claim 1, it is characterised in that: the through-hole include cold side into
Oral pore, cold side outlet port hole, hot side import hole and hot side outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910113229.9A CN109708498A (en) | 2019-02-14 | 2019-02-14 | A kind of novel graphite corrugated heat-exchange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910113229.9A CN109708498A (en) | 2019-02-14 | 2019-02-14 | A kind of novel graphite corrugated heat-exchange plate |
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| Publication Number | Publication Date |
|---|---|
| CN109708498A true CN109708498A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910113229.9A Pending CN109708498A (en) | 2019-02-14 | 2019-02-14 | A kind of novel graphite corrugated heat-exchange plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319730A (en) * | 2019-07-11 | 2019-10-11 | 南通晨光石墨设备有限公司 | A kind of production technology of graphite corrugated heat-exchange plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055584U (en) * | 1989-07-13 | 1990-04-04 | 浙江工学院 | Plate graphite heat exchanger |
| CN2826350Y (en) * | 2005-09-19 | 2006-10-11 | 黄健 | Graphite corrugated plate type heat exchanger |
| CN209558972U (en) * | 2019-02-14 | 2019-10-29 | 南通晨光石墨设备有限公司 | A kind of novel graphite corrugated heat-exchange plate |
-
2019
- 2019-02-14 CN CN201910113229.9A patent/CN109708498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055584U (en) * | 1989-07-13 | 1990-04-04 | 浙江工学院 | Plate graphite heat exchanger |
| CN2826350Y (en) * | 2005-09-19 | 2006-10-11 | 黄健 | Graphite corrugated plate type heat exchanger |
| CN209558972U (en) * | 2019-02-14 | 2019-10-29 | 南通晨光石墨设备有限公司 | A kind of novel graphite corrugated heat-exchange plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319730A (en) * | 2019-07-11 | 2019-10-11 | 南通晨光石墨设备有限公司 | A kind of production technology of graphite corrugated heat-exchange plate |
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Application publication date: 20190503 |
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