CN104422329A - Countercurrent heat-transfer corrugated plate sheet for gas-gas pre-heater - Google Patents
Countercurrent heat-transfer corrugated plate sheet for gas-gas pre-heater Download PDFInfo
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- CN104422329A CN104422329A CN201310414014.3A CN201310414014A CN104422329A CN 104422329 A CN104422329 A CN 104422329A CN 201310414014 A CN201310414014 A CN 201310414014A CN 104422329 A CN104422329 A CN 104422329A
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- transfer
- heat
- countercurrent heat
- corrugated cardboard
- cardboard sheet
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Abstract
The invention discloses a countercurrent heat-transfer corrugated plate sheet for a gas-gas pre-heater. The countercurrent heat-transfer corrugated plate sheet is wholly of a hexagon shape and is composed of heat conducting areas and a heat transfer area, wherein the heat transfer area is located in the middle of the countercurrent heat-transfer corrugated plate sheet and the heat conducting areas are arranged at the two ends of the heat transfer area. The countercurrent heat-transfer corrugated plate sheet provided by the invention has the advantages of high heat transfer efficiency, high temperature resistance, small fluid resistance, difficulty in scaling, zero dead zone, convenience in cleaning, simple mould manufacturing, and the like, and can be used as a heat transfer element for a whole welding plate type gas-gas pre-heater.
Description
Technical field
The present invention relates to the general purpose accessory of a kind of preheating and heat-transfer equipment, specifically, is about a kind of countercurrent heat-transfer corrugated cardboard sheet for gas-gas preheater.
Background technology
Full weldering adverse current panel-type air-gas preheater is applied to every profession and trade, and pure adverse current plate can further improve logarithmic mean temperature difference (LMTD), reduces the floor space of Whole Equipment, reduces weight of equipment, can improve heat exchanger effectiveness significantly.Countercurrent corrugated board directly affects the heat-transfer effect of preheater as its heat transfer element.
Typical heat pipe is made up of shell, liquid-sucking core and end cap, fills with appropriate hydraulic fluid after being pumped into negative pressure in pipe, make to be close to be full of liquid in the liquid-sucking core capillary-porous material of inside pipe wall after sealed.Liquid carburation by evaporation when one end of heat pipe is heated in Mao Renxin, steam flows to other end releasing heat and condenses into liquid under small pressure reduction, and liquid flows back to evaporator section along porous material by the effect of capillary force again.Circulation like this is not own, and heat is reached separately by one end of heat pipe-held, and owing to there is intermediary, there is heat loss, its heat transfer efficiency is generally lower than plate type preheater.
The plate type preheater that full weldering adverse current plate type preheater is more traditional, first carries out water conservancy diversion by cold and hot medium, forms the Flow Field Distribution of complete adverse current in heat transfer segment, to improve mean logarithmic temperature difference, further increase the heat transfer efficiency of plate version.
Summary of the invention
The object of the invention is the feature according to all welded type gas-gas preheater, overcome the deficiency of conventional heat transfer element, thus a kind of pure adverse current ripple heat transfer plate sheet for panel-type air-gas preheater is provided, to improve heat transfer efficiency, reduce fluid resistance.
For achieving the above object, by the following technical solutions of the present invention:
A kind of countercurrent heat-transfer corrugated cardboard sheet for gas-gas preheater, it is characterized in that: described countercurrent heat-transfer corrugated cardboard sheet entirety is in hexagon, be made up of guiding region and heat transfer zone, wherein, described heat transfer zone is positioned at the centre of countercurrent heat-transfer corrugated cardboard sheet, and described guiding region is then arranged at the two ends of described heat transfer zone.
According to the present invention, described heat transfer zone is evenly distributed with spaced concave, convex ripple; The form of described concave, convex ripple is selected from: circular, oval and square; Described concave, convex ripple is arranged by row or column interval; Convex ripple and the recessed ripple of adjacent rows or two row replace non-aligned arrangements.
According to the present invention, described heat transfer zone is also provided with spacing column, and the shape of described spacing column is spherical burr.
In the present invention, described guiding region is evenly distributed with spaced concave, convex ripple; The form of described concave, convex ripple is selected from: strip, circle, ellipse and square; At an angle alpha, the value of this angle [alpha] is between 0 ° ~ 90 ° for the orientation of the concave, convex ripple of described guiding region and the axial row of countercurrent heat-transfer corrugated cardboard sheet.
In addition, each edge of described countercurrent heat-transfer plate is provided with flanging, for multiple plate is connected into plate bundle.
Countercurrent heat-transfer plate for gas-gas preheater of the present invention has following beneficial effect:
Corrugated cardboard sheet of the present invention, have that heat transfer efficiency is high, temperature resistant capability is strong, fluid resistance is little, less scaling, without dead band, be convenient to the advantages such as cleaning, Making mold are simple, can be used for full welding plate formula gas-gas preheater, as heat transfer element.Suppressed by particular manufacturing craft and form, often arrange that unit waveform on row (column) ripple is convex, level and smooth arc between dimpled grain or horizontal transition automatically form in mould pressing process, at reduction flow passage resistance force of waterproof, while increasing heat transfer area, avoid the reduction of plate bearing capacity.
The plate pipe of corrugated cardboard sheet composition of the present invention, form a kind of uniform passage, the flow channel cross-section of fluid is long-pending to remain unchanged, simultaneously fluid in runner by time can the disturbance of continuous enhance fluid between ripple, and flow resistance, augmentation of heat transfer, not easily dust adhesion can be reduced.
Adopt the plate bundle that corrugated cardboard sheet of the present invention is welded into, both sides flow passage structure is identical, and medium is counter-current flow in both sides, and heat-transfer effect is good.The heat-transfer equipment more compact structure of this form, can modularized production, maximizes assembled, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of countercurrent heat-transfer corrugated cardboard sheet of the present invention.
Fig. 2 is the sectional view of the flanging of Fig. 1.
Fig. 3 is the generalized section of countercurrent heat-transfer corrugated cardboard sheet.
Detailed description of the invention
Below in conjunction with accompanying drawing, with specific embodiment, the countercurrent heat-transfer corrugated cardboard sheet for gas-gas preheater of the present invention is described in further details.Should be understood that following examples only for illustration of the present invention but not for limiting scope of the present invention.
As shown in figures 1 and 3, countercurrent heat-transfer corrugated cardboard sheet for gas-gas preheater entirety of the present invention is in hexagon, be made up of guiding region 10 and heat transfer zone 20, wherein, described heat transfer zone 20 is positioned at the centre of countercurrent heat-transfer corrugated cardboard sheet, and 10, described guiding region is arranged at the two ends of described heat transfer zone 20.
Described heat transfer zone 20 is evenly distributed with spaced concave, convex ripple 21,22, the form of described concave, convex ripple 21,22 can be circular, oval or square etc., and described concave, convex ripple 21,22 is arranged by row (column) interval, i.e. the convex ripple 22 of a row (column) recessed ripple 21, row (column) convex ripple 22, row (column) recessed ripple 21, row (column) ...Preferably, the convex ripple 22 of described adjacent rows (row) and recessed ripple 21 replace non-aligned arrangements.
In the present embodiment, if the oval ripple of described waveform 21,22, then the major axis of oval ripple should be identical with the long side direction of corrugated cardboard sheet.
Preferably, in same row (column), convex, the recessed direction of ripple is identical, that is: same row (column) be all burr or be all dimpled grain.Spacing between convex, recessed ripple on each row (column) direction is identical, and curved (or interval continuously), smooth or horizontal transition continuously.The shape being all the row (column) ripple of odd number row is identical with distribution, the shape being all the row (column) ripple of even rows is identical with distribution, convex, the recessed direction of the row (column) ripple of adjacent two rows is contrary, and the distribution in offset pattern, that is: ripple is the row ripple of burr, the row ripple dimpled grain of its adjacent two rows, and the unit centre of sphere of the dimpled grain of adjacent two row's ripples and burr is not all point-blank, and offset one from another certain distance.
In addition, heat transfer zone 20 can arrange spacing column 23 as required, and the shape of spacing column 23 is preferably spherical burr, and its effect is the bearing capacity that can increase plate.
The guiding region 10 at two ends, described heat transfer zone 20, be evenly distributed with spaced concave, convex ripple 11,12 equally, as shown in the figure, the form of described concave, convex ripple 11,12 is strip, according to actual needs, its form can also be square, circular and oval etc.Preferably, the orientation of described concave, convex ripple 11,12 and the axial row of countercurrent heat-transfer plate are at an angle alpha, the value of this angle [alpha] can adjust between 0 ° ~ 90 °, according to limiting factor and the working condition of Different field, can adjust the size of α flexibly, to realize each medium pipeline access point different directions, the flow direction of cold and hot fluid all can be adjusted to the pure reverse flow state that angle is 180 ° by the gas flow direction of different angles behind this guiding region.
As illustrated in fig. 1 and 2, each edge of described countercurrent heat-transfer plate is also provided with flanging 30 further, so that multiple plate is connected into plate bundle.
Adopt countercurrent heat-transfer corrugated cardboard sheet of the present invention, at plate to poststack, can form different medium channels between the ripple of plate both sides, the spacing between different medium passage can adjust according to each applying working condition, to reach rational flow velocity and flow resistance.The direction of different medium passage is contrary, thus realizes the countercurrent flow of cold and hot fluid.
Structure of the present invention is simple, for plate air preheater or other gas-gas preheater, is different medium pure countercurrent corrugated board.
Claims (10)
1. the countercurrent heat-transfer corrugated cardboard sheet for gas-gas preheater, it is characterized in that: described countercurrent heat-transfer corrugated cardboard sheet entirety is in hexagon, be made up of guiding region and heat transfer zone, wherein, described heat transfer zone is positioned at the centre of countercurrent heat-transfer corrugated cardboard sheet, and described guiding region is then arranged at the two ends of described heat transfer zone.
2. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 1, is characterized in that: described heat transfer zone is evenly distributed with spaced concave, convex ripple.
3. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 2, is characterized in that: the form of described concave, convex ripple is selected from: circular, oval and square.
4. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 2, is characterized in that: described concave, convex ripple is arranged by row or column interval.
5. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 4, is characterized in that: convex ripple and the recessed ripple of adjacent rows or two row replace non-aligned arrangements.
6. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 1, it is characterized in that: described heat transfer zone is also provided with spacing column, the shape of described spacing column is spherical burr.
7. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 1, is characterized in that: described guiding region is evenly distributed with spaced concave, convex ripple.
8. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 7, is characterized in that: the form of described concave, convex ripple is selected from: strip, circle, ellipse and square.
9. countercurrent heat-transfer corrugated cardboard sheet as claimed in claim 7, is characterized in that: at an angle alpha, the value of this angle [alpha] is between 0 ° ~ 90 ° for the orientation of the concave, convex ripple of described guiding region and the axial row of countercurrent heat-transfer corrugated cardboard sheet.
10. countercurrent heat-transfer plate as claimed in claim 1, is characterized in that: each edge of described countercurrent heat-transfer plate is provided with flanging, for multiple plate is connected into plate bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414014.3A CN104422329A (en) | 2013-09-11 | 2013-09-11 | Countercurrent heat-transfer corrugated plate sheet for gas-gas pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414014.3A CN104422329A (en) | 2013-09-11 | 2013-09-11 | Countercurrent heat-transfer corrugated plate sheet for gas-gas pre-heater |
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| Publication Number | Publication Date |
|---|---|
| CN104422329A true CN104422329A (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310414014.3A Pending CN104422329A (en) | 2013-09-11 | 2013-09-11 | Countercurrent heat-transfer corrugated plate sheet for gas-gas pre-heater |
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| CN (1) | CN104422329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444603A (en) * | 2015-12-27 | 2016-03-30 | 黑龙江国德节能服务有限公司 | Plate heat exchanger master slice |
| CN106440915A (en) * | 2016-08-31 | 2017-02-22 | 赵弘毅 | Heat exchange plate piece |
-
2013
- 2013-09-11 CN CN201310414014.3A patent/CN104422329A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444603A (en) * | 2015-12-27 | 2016-03-30 | 黑龙江国德节能服务有限公司 | Plate heat exchanger master slice |
| CN105444603B (en) * | 2015-12-27 | 2018-03-06 | 黑龙江国德节能服务有限公司 | Plate type heat exchanger master slice |
| CN106440915A (en) * | 2016-08-31 | 2017-02-22 | 赵弘毅 | Heat exchange plate piece |
| CN106440915B (en) * | 2016-08-31 | 2018-09-07 | 赵弘毅 | A kind of heat exchange plate |
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Application publication date: 20150318 |