CN110469868A - A kind of Novel plate type air preheater - Google Patents
A kind of Novel plate type air preheater Download PDFInfo
- Publication number
- CN110469868A CN110469868A CN201910859627.5A CN201910859627A CN110469868A CN 110469868 A CN110469868 A CN 110469868A CN 201910859627 A CN201910859627 A CN 201910859627A CN 110469868 A CN110469868 A CN 110469868A
- Authority
- CN
- China
- Prior art keywords
- plate
- side edgefold
- heat
- air
- channel
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 claims abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000779 smoke 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
A kind of Novel plate type air preheater, the plate-type heat-exchange core are to be superimposed to be formed by a certain number of heat exchanger plates；Heat exchanger plates are by plate by suppressing, onboard form the roundlet connected in star between square groove and square groove, there is an opposite side flange, one of heat exchange plate, which is rotated by 90 °, to be stacked with another piece of heat exchange version with certain spacing, square trench is opposite with square trench, roundlet connected in star septal branch fagging piece forms channel height on two pieces of heat exchanger plates, and fluid channel is formed after flanging is welded, and the type of flow of two kinds of fluids is cross-flow.The present invention is cleaned suitable for working medium, and air quantity is larger, and drop requirements are low, the high field of heat transfer requirements.Since the groove that heat exchange runner is similar to plate channel, and is stamped and formed out on plate does not increase the pressure drop of two sides while increasing air turbulence, therefore the coefficient of heat transfer is high, and pressure drop is low；In addition, the heat exchanger is pressure-resistant, heatproof does not need edge strip when the processing is simple and channel welds, is convenient for laser welding, and manufacturing cost is low.
Description
Technical field
The invention belongs to gas fired-boiler waste heat recovering energy conserving equipment field of heat exchange, in particular to a kind of New-type plate air
Preheater.
Background technique
It is realized currently, power plant is main for fume waste heat recycling by air preheater, existing air preheater is main
It is rotary, tubular type and fin tube type.At present in the scope of gas fired-boiler, tubular air preheater occupies sizable ratio
Example.Tubular type is low with fin tube air preheater heat exchange efficiency, and volume is big, is difficult to handle after easy dust stratification and dust stratification, smoke inlet changes
Heat pipe abrasion is larger, influences working efficiency and the service life of air preheater.
Plate heat exchanger is compact-sized, heat transfer efficiency is high, but processing technology is complicated, and manufacturing cost is high, pressure resistance, heatproof journey
It spends low.Conventional plate-type heat exchanger will appear the phenomenon that aging in use due to rubber washer, be not suitable for
The heat transfer process of flue gas and air.Therefore exploitation is extremely urgent suitable for the Novel plate type air preheater of station boiler.
Summary of the invention
It is an object of the invention to overcome Conventional plate-type air preheater narrow application range, processing technology complicated, manufacturing cost is high,
The phenomenon that pressure resistance, heatproof degree are low, will appear aging in use, is not suitable for the heat transfer process etc. of flue gas and air
Disadvantage, and tradition it is rotary be easy to appear with tube-type air preheater failure, take up a large area, the coefficient of heat transfer is low, dust stratification problem and
The problems such as service life is short；A kind of Novel plate type air preheater is provided, the support which is formed by circular groove, shape
At the fluid channel of heat exchanger, plate opposite side itself forms flanging, is easy to laser welding；Plate is square structure, is easy to mould
Blockization assembling, further, since two sides are similar to plate channel, and the groove being stamped and formed out on plate is increasing the same of air turbulence
When do not increase the pressure drops of two sides, therefore the coefficient of heat transfer is high, and pressure drop is low；In addition, the Novel plate type air preheater has pressure resistance, it is resistance to
Temperature, the processing is simple and is convenient for laser welding, the low feature of manufacturing cost.
In order to achieve the above object, the invention adopts the following technical scheme: a kind of Novel plate type air preheater, feature
Be: it includes plate-type heat-exchange core；Plate-type heat-exchange core single plate as made of several compactings stacks welding, weld
For flue gas side edgefold and air side edgefold, stack manner is that one of heat exchange single plate is rotated by 90 ° and another piece of heat exchanger plates
Piece is stacked with certain spacing, and square trench is opposite with square trench, the circular groove in one piece of single plate and another block of plate
The plane domain of on piece is opposite, and roundlet connected in star septal branch fagging piece forms channel height on two pieces of heat exchanger plates, therefore passes through tune
The height of full circle connected in star can arbitrarily select the size of exhaust gases passes and air duct；The single plate has two sides up and down
Air side edgefold or flue gas side edgefold, the left and right sides is without flanging, and single plate forms square groove through mould punching and circle is recessed
Slot；The circular groove is identical as air side edgefold and flue gas side edgefold compacting height, by changing circular groove and air side
Flanging and flue gas side edgefold compacting height, thus it is possible to vary the size of two sides fluid channel exhaust gases passes and air duct, air side
Flanging plays the role of seal gas channel by welding procedure；Flue gas side edgefold plays sealing fume channel by welding procedure
Effect.
Further, the single plate forms exhaust gases passes or air duct by being rotated by 90 ° stacking with single plate.
Further, the square groove includes each quantity, various forms and each depth, and the depth of square groove
With all length that side length includes in 10-100mm.
Further, the circular groove (8) includes each quantity, various forms and each depth, and circular groove
Depth and side length include all length in 0.1-20mm.
Further, the air side edgefold and flue gas side edgefold include the sealing of various forms and various tilt angles
Side.
The beneficial effects of the present invention are: (1) overcomes Conventional plate-type air preheater narrow application range, heat exchange efficiency low, it cannot
The disadvantages of bearing high pressure, high temperature；
(2) the sheet structure fluid medium of groove type has certain flow-disturbing effect, and Yi Shixian turbulence state has heat exchange
The advantages that high-efficient；
(3) Novel plate type air preheater of the present invention, the processing is simple for manufacture, and template ratio of briquetting is high, and material requires low, processing
It is at low cost, it is easy to modularization, it is easy for installation.
(4) Novel plate type air preheater of the present invention, plate uses laser welding by itself flanging, without adding edge strip
And gasket, welding capacity are small；
(5) the board-like air preheater of the present invention can be not only used for power plant's gas-gas field of heat exchange, for solution-air, liquid-liquid heat exchange
It is equally applicable.
(6) the board-like air preheater groove structure of the present invention is square groove, and plate is rectangular plate, is rotated by 90 ° heap poststack energy
Channel design is supported, convenient for forming runner, is easy to modularization assembling.
Detailed description of the invention
Fig. 1 is core overall schematic in the embodiment of the present invention；
Fig. 2 is core structure enlargement diagram in the embodiment of the present invention；
Fig. 3 is channel design schematic diagram in the embodiment of the present invention；
Fig. 4 is single plate top view in the embodiment of the present invention；
Fig. 5 is single plate main view in the embodiment of the present invention.
Figure label: 1 plate-type heat-exchange core, 2 single plates, 3 exhaust gases passes, 4 air ducts, 5 air side edgefolds, 6 cigarettes
Gas side flanging, 7 square grooves, 8 circular grooves, 9 plane domains.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
The present invention exchanges heat for gas-gas, air-water, it includes plate-type heat-exchange core；The plate-type heat-exchange core is by certain
The heat exchanger plates of quantity are superimposed to be formed.Heat exchanger plates, by suppressing, are onboard formed between square groove and square groove by plate
Roundlet connected in star, there is an opposite side flange, and one of heat exchange plate is rotated by 90 ° with another piece of heat exchange version with certain spacing phase
Folded, square trench is opposite with square trench, and roundlet connected in star septal branch fagging piece forms channel height on two pieces of heat exchanger plates, will roll over
Fluid channel is formed after the welding of side, the type of flow of two kinds of fluids is cross-flow.Novel plate type air preheater provided by the invention,
It is cleaned suitable for working medium, air quantity is larger, and drop requirements are low, the high field of heat transfer requirements.Since heat exchange runner is similar to plate
Channel, and the groove being stamped and formed out on plate does not increase the pressure drop of two sides, therefore the coefficient of heat transfer while increasing air turbulence
Height, pressure drop are low；In addition, the heat exchanger is pressure-resistant, heatproof does not need edge strip when the processing is simple and channel welds, is convenient for laser welding,
Manufacturing cost is low.
Embodiment 1: referring to Figures 1 and 2, a kind of Novel plate type air preheater, comprising: plate-type heat-exchange core 1 is by suppressing
Made of multiple plates 2 be rotated by 90 ° stacking welding, weld to form exhaust gases passes 3 at flue gas side edgefold 6；It is welded at air side edgefold 5
It connects to form air duct 4.
Referring to Fig. 3, two plates 2 as made of suppressing stack welding, and stack manner is similar round groove 8 and plane domain
9 to folded.
Referring to Fig. 4 and Fig. 5, there are square groove 7 and circular groove 8,5 and of air side edgefold made of compacting in single plate
Flue gas side edgefold 6.
Claims (5)
1. a kind of Novel plate type air preheater, it is characterised in that: it includes plate-type heat-exchange core (1)；The plate-type heat-exchange core
Body (1) single plate as made of several compactings (2) stacks welding, and weld is flue gas side edgefold (6) and air side edgefold
(5), stack manner is rotated by 90 ° for one of heat exchange single plate (2) and is stacked with another piece of heat exchange plate with certain spacing,
Square trench (7) is opposite with square trench, the circular groove (8) on one piece of single plate (2) and the plane on another piece of plate
Relatively, roundlet connected in star septal branch fagging piece forms channel height on two pieces of heat exchanger plates, therefore by adjusting round recessed in region (9)
The height of slot (8) can arbitrarily select the size of exhaust gases passes (3) and air duct (4)；The single plate (2) two sides up and down
With air side edgefold (5) or flue gas side edgefold (6), the left and right sides forms rectangular without flanging, single plate (2) through mould punching
Groove (7) and circular groove (8)；The circular groove (8) suppresses height phase with air side edgefold (5) and flue gas side edgefold (6)
Together, by changing circular groove (8) and air side edgefold (5) and flue gas side edgefold (6) compacting height, thus it is possible to vary two side liquids
The size of channel exhaust gases passes (3) and air duct (4), air side edgefold (5) play seal gas channel by welding procedure
(4) effect；Flue gas side edgefold (6) plays the role of sealing fume channel (3) by welding procedure.
2. a kind of Novel plate type air preheater according to claim 1, it is characterised in that: the single plate (2) with
Single plate forms exhaust gases passes (3) or air duct (4) by being rotated by 90 ° stacking.
3. a kind of Novel plate type air preheater according to claim 1, it is characterised in that: square groove (7) packet
Each quantity, various forms and each depth are included, and the depth of square groove (7) and side length include all length in 10-100mm
Degree.
4. a kind of Novel plate type air preheater according to claim 1, it is characterised in that: circular groove (8) packet
Each quantity, various forms and each depth are included, and the depth of circular groove (8) and side length include all length in 0.1-20mm
Degree.
5. a kind of Novel plate type air preheater according to claim 1, it is characterised in that: the air side edgefold (5)
It include the sealing edge of various forms and various tilt angles with flue gas side edgefold (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910859627.5A CN110469868A (en) | 2019-09-11 | 2019-09-11 | A kind of Novel plate type air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910859627.5A CN110469868A (en) | 2019-09-11 | 2019-09-11 | A kind of Novel plate type air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469868A true CN110469868A (en) | 2019-11-19 |
Family
ID=68515602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910859627.5A Withdrawn CN110469868A (en) | 2019-09-11 | 2019-09-11 | A kind of Novel plate type air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469868A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344756Y (en) * | 2008-12-09 | 2009-11-11 | 重庆司莫威尼热力设备有限公司 | Heat-exchange plate used for fume waste-heat recovery |
| CN101672587A (en) * | 2009-09-28 | 2010-03-17 | 南京宜热纵联节能科技有限公司 | Gas-phase plate type heat exchanger |
| CN102095328A (en) * | 2011-03-02 | 2011-06-15 | 常州大学 | M-type corrugated-plate heat exchanger plate bundle with positioning control point |
| CN102410761A (en) * | 2011-12-09 | 2012-04-11 | 沈阳汇博热能设备有限公司 | Self-supported all-welded plate type heat exchanger |
| CN204513444U (en) * | 2015-03-12 | 2015-07-29 | 山东旺泰机械科技有限公司 | Self-supporting broad gap heat exchange element |
| CN206420363U (en) * | 2017-01-17 | 2017-08-18 | 苏州三川换热器有限公司 | A kind of plate of plate type heat exchanger |
| CN210485790U (en) * | 2019-09-11 | 2020-05-08 | 南京同诚节能环保装备研究院有限公司 | Novel plate-type air preheater |
-
2019
- 2019-09-11 CN CN201910859627.5A patent/CN110469868A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344756Y (en) * | 2008-12-09 | 2009-11-11 | 重庆司莫威尼热力设备有限公司 | Heat-exchange plate used for fume waste-heat recovery |
| CN101672587A (en) * | 2009-09-28 | 2010-03-17 | 南京宜热纵联节能科技有限公司 | Gas-phase plate type heat exchanger |
| CN102095328A (en) * | 2011-03-02 | 2011-06-15 | 常州大学 | M-type corrugated-plate heat exchanger plate bundle with positioning control point |
| CN102410761A (en) * | 2011-12-09 | 2012-04-11 | 沈阳汇博热能设备有限公司 | Self-supported all-welded plate type heat exchanger |
| CN204513444U (en) * | 2015-03-12 | 2015-07-29 | 山东旺泰机械科技有限公司 | Self-supporting broad gap heat exchange element |
| CN206420363U (en) * | 2017-01-17 | 2017-08-18 | 苏州三川换热器有限公司 | A kind of plate of plate type heat exchanger |
| CN210485790U (en) * | 2019-09-11 | 2020-05-08 | 南京同诚节能环保装备研究院有限公司 | Novel plate-type air preheater |
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Legal Events
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191119 |
|
| WW01 | Invention patent application withdrawn after publication |