CN111578767A - Heat transfer element plate for air preheater - Google Patents
Heat transfer element plate for air preheater Download PDFInfo
- Publication number
- CN111578767A CN111578767A CN202010377843.9A CN202010377843A CN111578767A CN 111578767 A CN111578767 A CN 111578767A CN 202010377843 A CN202010377843 A CN 202010377843A CN 111578767 A CN111578767 A CN 111578767A
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- China
- Prior art keywords
- plate
- groove
- heat transfer
- corrugated
- transfer element
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Classifications
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- 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
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
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- 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
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- 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
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
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- 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
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Abstract
A heat transfer element plate for an air preheater belongs to a heat transfer element. The front end of the positioning plate is provided with a corrugated plate, the inner part of the outer wall of the front end of the corrugated plate is provided with a first ash through groove, the corrugated groove a is arranged in the outer wall of the front end of the corrugated plate at the right end of the first ash through groove, the first flue gas channel is arranged in the outer wall of the front end of the corrugated plate at the left end of the first ash through groove, the second ash through groove is formed in the outer wall of the front end of the positioning plate, the second flue gas channel is formed in the outer wall of the front end of the positioning plate at the right end of the second ash through groove, on one hand, the performance of the product is improved, the characteristics of good heat exchange effect and small circulation resistance are achieved, the exhaust gas temperature of the boiler can be effectively reduced, the boiler efficiency is improved, the contribution is made to energy conservation and emission reduction, the total weight of the air preheater can be reduced, the cost of the company is reduced, and the industry competitiveness of the company is improved, the novel heat transfer element plate for the air preheater enables the use effect of the rotary air preheater to be better.
Description
Technical Field
The invention belongs to the related technical field of rotary air preheaters, and particularly relates to a heat transfer element plate for an air preheater.
Background
The plate type of the heat transfer element of the rotary air preheater is developed for decades, and the plate type of the heat transfer element which is put into engineering operation is dozens of series, wherein the common corrugated plate type can be divided into three types of DU series (corrugated plate and strip positioning corrugated plate), CU series (corrugated plate and strip flat positioning plate) and NF series (flat plate and strip flat positioning plate).
The prior art heat transfer element plates for air preheaters have the following problems: the performance of the heat transfer element of the preheater is closely related to the wave height, the pitch, the height, the inclination angle, the pressing force and the like of the heat transfer element, the change of each index can affect the performance of the heat transfer element, the stronger the heat exchange capacity of the plate type of the heat transfer element is, the larger the flow resistance of the heat transfer element is, the weaker the ash blocking resistance is, compared with the CU series, the plate type of the heat transfer element of the DU series is poor in heat exchange capacity, but the flow resistance in unit volume is small, the ash blocking resistance is strong, and compared with the CU series, the plate type of the DU series and the CU series, the plate type of the heat.
Disclosure of Invention
The present invention is directed to a heat transfer element plate for an air preheater, which solves the problems of different advantages, respective disadvantages and insufficient comprehensive effects of the plate types of different heat transfer elements proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a heat transfer element board for air heater, including wave plate and locating plate, the wave plate is installed to the front end of locating plate, the inside first ash chute that leads to that is provided with of front end outer wall of wave plate, the inside ripple groove an that is provided with of wave plate front end outer wall of first ash chute right-hand member that leads to, the inside first flue gas passageway that is provided with of wave plate front end outer wall of first ash chute left end, the inside second ash chute that leads to that is provided with of front end outer wall of locating plate, the inside second flue gas passageway that is provided with of locating plate front end outer wall of second ash chute right-hand member, the inside ripple groove b that is provided with of locating plate front end outer wall of second ash chute left end.
Preferably, the corrugated groove b in the front end of the positioning plate and the second flue gas channel are crossed in a herringbone mode, and the included angle between the corrugated groove b and the second flue gas channel is one hundred twenty degrees.
Preferably, the positioning plate and the corrugated plate are identical in size and shape, and one half of diagonal grains of the positioning plate and the corrugated plate are crossed at sixty degrees and the other half of diagonal grains of the positioning plate and the corrugated plate are parallel.
Preferably, the outer walls of the positioning plate and the corrugated plate are smooth walls, and the positioning plate and the corrugated plate are formed by rolling thin steel plates.
Compared with the prior art, the invention provides the heat transfer element plate for the air preheater, which has the following beneficial effects:
the invention is to meet the operational requirement of the air preheater of the denitrating unit, further improve the heat exchange effect of the heat transfer element, reduce the flow resistance, have designed locating plate and corrugated plate of different forms, the new board type has better heat transfer effect, have small flow resistance at the same time, the characteristic without blocking up the ash, improve the product performance on the one hand, the development of the new board type of heat transfer element needs to consider heat transfer effect, flow resistance and three factors of anti-blocking up the ash performance at the same time, adopt the heat transfer element with good heat transfer effect to reduce the manufacturing cost, but the flow resistance is large, the heat transfer element is apt to accumulate the ash, cause the running cost to rise, the new HE11 heat transfer element is each pair made up by two identical locating plates with corrugation, every locating plate part presents 60 degrees of direction and intersects, half of twill of two plates presents 60 degrees and intersects half and is parallel, the new HE11 board type, not only can effectively reduce boiler exhaust gas temperature, improve boiler efficiency, make the contribution for energy saving and emission reduction, can also reduce air heater's total weight, reduce our company's cost, improve our company trade competitiveness, make rotary air heater's result of use better through this novel heat transfer element board for air heater.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a perspective view of a heat transfer element plate for an air preheater according to the present invention;
FIG. 2 is a schematic front view, partially in section, of a heat transfer element plate for an air preheater according to the present invention;
in the figure: 1. a corrugated plate; 2. a first flue gas channel; 3. a first ash through groove; 4. a corrugated groove a; 5. a second flue gas channel; 6. a second ash through groove; 7. a corrugated groove b; 8. and (7) positioning the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a heat transfer component board for air heater, including wave plate 1 and locating plate 8, wave plate 1 is installed to the front end of locating plate 8, there is two to five zero gaps between zero point between locating plate 8 and the wave plate 1 at the interval, gapped messenger's air circulation is more smooth and easy, when operation, under the air current is washed, the heat transfer component piece is in the state of shaking all the time, make the great ash of granule effectively pass through the preheater, more conveniently heat transfer, locating plate 8 and wave plate 1's size shape is unanimous, locating plate 8 and wave plate 1's twill half are sixty degree and cross and second half parallel, locating plate 8 and wave plate 1 of different forms, better heat transfer effect has, it is little to have the circulation resistance simultaneously, the characteristics of not stifled ash, improve product performance on the one hand, on the other hand reduce product cost, increase market competitiveness, the outer wall of locating plate 8 and wave plate 1 is smooth, the positioning plate 8 and the corrugated plate 1 are both formed by rolling thin steel plates, so that the positioning plate 8 and the corrugated plate 1 are high in overall heat resistance and not prone to deformation when heated, a first ash through groove 3 is formed in the inner portion of the outer wall of the front end of the corrugated plate 1 at the right end of the first ash through groove 3, a corrugated groove a4 is formed in the inner portion of the outer wall of the front end of the corrugated plate 1 at the left end of the first ash through groove 3, a first flue gas channel 2 is formed in the inner portion of the outer wall of the front end of the positioning plate 8, a second ash through groove 6 is formed in the inner portion of the outer wall of the front end of the positioning plate 8 at the right end of the second ash through groove 6, a corrugated groove b7 is formed in the inner portion of the outer wall of the front end of the positioning plate 8 at the left end of the second ash through groove 6, the corrugated groove b7 and the second flue gas channel 5 in the inner portion of the front end of the positioning plate 8 are crossed in a, The pitch, height, inclination angle, pressing force and the like are closely related, and the performance of the element adopting the cross angle is best combined.
The working principle and the using process of the invention are as follows: after the heat transfer element plate is installed, the heat transfer element plate for the air preheater changes the density, the inclination angle and the like of surface corrugations of the plate type without influencing the heat transfer performance of the plate type by changing the parameters of the wave height, the pitch, the pair height, the inclination angle, the pressing force and the like of the element, minimizes the original defects, further improves the heat exchange effect of the heat transfer element, reduces the circulation resistance, heats the heat transfer element in the rotor after smoke enters the air preheater when in use, releases heat carried by the wave plate 1 and the positioning plate 8 in the heat transfer element to air flowing through the rotor after the rotor rotates to the air side, and continuously rotates the rotor, and the heat exchange process is also continuously carried out.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A heat transfer element plate for an air preheater comprising a corrugated plate (1) and a positioning plate (8), characterized in that: wave plate (1) is installed to the front end of locating plate (8), the inside first grey groove (3) that leads to that is provided with of front end outer wall of wave plate (1), the inside corrugated groove a (4) that is provided with of wave plate (1) front end outer wall of first grey groove (3) right-hand member that leads to, the inside first flue gas passageway (2) that is provided with of wave plate (1) front end outer wall of first grey groove (3) left end, the inside second grey groove (6) that leads to that is provided with of front end outer wall of locating plate (8), locating plate (8) front end outer wall of second grey groove (6) right-hand member inside is provided with second flue gas passageway (5), locating plate (8) front end outer wall of second grey groove (6) left end inside is provided with corrugated groove b (7).
2. A heat transfer element plate for an air preheater as recited in claim 1, wherein: the corrugated groove b (7) and the second flue gas channel (5) in the front end of the positioning plate (8) are crossed in a herringbone mode, and the included angle between the corrugated groove b (7) and the second flue gas channel (5) is one hundred twenty degrees.
3. A heat transfer element plate for an air preheater as recited in claim 1, wherein: the size and the shape of the positioning plate (8) are consistent with those of the corrugated plate (1), and half of the diagonal lines of the positioning plate (8) and the corrugated plate (1) are crossed at sixty degrees and are parallel to the other half.
4. A heat transfer element plate for an air preheater as recited in claim 1, wherein: the outer walls of the positioning plate (8) and the corrugated plate (1) are smooth walls, and the positioning plate (8) and the corrugated plate (1) are formed by rolling thin steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010377843.9A CN111578767A (en) | 2020-05-07 | 2020-05-07 | Heat transfer element plate for air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010377843.9A CN111578767A (en) | 2020-05-07 | 2020-05-07 | Heat transfer element plate for air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111578767A true CN111578767A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010377843.9A Pending CN111578767A (en) | 2020-05-07 | 2020-05-07 | Heat transfer element plate for air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111578767A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348461Y (en) * | 2008-12-17 | 2009-11-18 | 哈尔滨锅炉厂有限责任公司 | Heat transfer element plate profile of rotary air preheater for boilers |
| CN201402089Y (en) * | 2009-04-21 | 2010-02-10 | 东方锅炉（集团）股份有限公司 | High efficient heat exchange element plate of utility boiler |
| CN202350615U (en) * | 2011-09-26 | 2012-07-25 | 张任育 | HYD (Hydraulic) heat transfer element plate shape for air preheater of power station |
| CN202852859U (en) * | 2012-08-20 | 2013-04-03 | 章礼道 | Stainless steel heat transfer elements for denitration rotary air pre-heater |
| CN103717992A (en) * | 2011-06-01 | 2014-04-09 | 阿尔斯通技术有限公司 | Heating element undulation patterns |
| CN104797901A (en) * | 2013-09-19 | 2015-07-22 | 豪顿英国有限公司 | Heat exchange element profile with enhanced cleanability features |
| CN208442856U (en) * | 2018-05-04 | 2019-01-29 | 浙江开尔新材料股份有限公司 | A kind of heat transfer of rotary regenerative air preheater |
| CN212620325U (en) * | 2020-05-07 | 2021-02-26 | 哈尔滨锅炉厂预热器有限责任公司 | Heat transfer element plate for air preheater |
-
2020
- 2020-05-07 CN CN202010377843.9A patent/CN111578767A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348461Y (en) * | 2008-12-17 | 2009-11-18 | 哈尔滨锅炉厂有限责任公司 | Heat transfer element plate profile of rotary air preheater for boilers |
| CN201402089Y (en) * | 2009-04-21 | 2010-02-10 | 东方锅炉（集团）股份有限公司 | High efficient heat exchange element plate of utility boiler |
| CN103717992A (en) * | 2011-06-01 | 2014-04-09 | 阿尔斯通技术有限公司 | Heating element undulation patterns |
| CN202350615U (en) * | 2011-09-26 | 2012-07-25 | 张任育 | HYD (Hydraulic) heat transfer element plate shape for air preheater of power station |
| CN202852859U (en) * | 2012-08-20 | 2013-04-03 | 章礼道 | Stainless steel heat transfer elements for denitration rotary air pre-heater |
| CN104797901A (en) * | 2013-09-19 | 2015-07-22 | 豪顿英国有限公司 | Heat exchange element profile with enhanced cleanability features |
| CN208442856U (en) * | 2018-05-04 | 2019-01-29 | 浙江开尔新材料股份有限公司 | A kind of heat transfer of rotary regenerative air preheater |
| CN212620325U (en) * | 2020-05-07 | 2021-02-26 | 哈尔滨锅炉厂预热器有限责任公司 | Heat transfer element plate for air preheater |
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