CN203147803U - A plate type air preheater resistant to low temperature dew point corrosion - Google Patents
A plate type air preheater resistant to low temperature dew point corrosion Download PDFInfo
- Publication number
- CN203147803U CN203147803U CN2013200016072U CN201320001607U CN203147803U CN 203147803 U CN203147803 U CN 203147803U CN 2013200016072 U CN2013200016072 U CN 2013200016072U CN 201320001607 U CN201320001607 U CN 201320001607U CN 203147803 U CN203147803 U CN 203147803U
- Authority
- CN
- China
- Prior art keywords
- plate
- heat transfer
- transfer core
- core body
- welded
- 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.)
- Expired - Fee Related
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 18
- 238000005260 corrosion Methods 0.000 title claims abstract description 18
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 9
- 230000005587 bubbling Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 3
- 239000010962 carbon steel Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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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
Landscapes
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a low temperature dew point corrosion resistant plate air heater, includes pinch plate, heat transfer core, stay, expansion joint, its characterized in that: the clamping plate and the tension brace are welded to form an equipment frame; two ends of the plate tube pass flow channel of the heat transfer core body are respectively welded with the end surfaces of the two expansion joints, and the other end surface of the expansion joint is welded with the equipment frame to form integral equipment. The heat transfer core is a full-welded plate type heat transfer core and is formed by welding a plurality of plate tubes, a toothed plate and a lining plate. The plate pipe is formed by welding two plate sheets, and the outer surface of the plate pipe is subjected to enamel treatment. The heat transfer core body of the utility model is an all-welded plate type heat transfer core body, has high heat transfer efficiency, compact structure, zero leakage, and good heat compensation capability, and is designed with an expansion joint structure; the heat transfer core body is made of carbon steel, the wall surface of the flue gas channel is subjected to enamel treatment, the manufacturing cost is low, dew point corrosion resistance is high, meanwhile, the smooth enamel wall surface of the flue gas channel enables the flow resistance to be low, dust is not easy to accumulate, and dust is easy to remove.
Description
Technical field
The utility model belongs to the flue gas waste heat recovery apparatus field, relates to a kind of air preheater, the plate air preheater of especially low temperature resistant dew point corrosion.
Background technology
The function of air preheater is that the flue gas in the boiler back end ductwork enters air preheat before the boiler to uniform temperature by the heating of its heat transfer element, thereby improves the efficiency of combustion of boiler, cuts down the consumption of energy.Be the equipment that present large-sized boiler, combustion furnace etc. must dispose.
At present, the common structure type of air preheater has: tubular air preheater, heat pipe preheater, rotary regenerative air preheater, plate air preheater etc.The several problems that manufacture and design the needs consideration of air preheater: 1, heat transfer efficiency and compactness; 2, low temperature resistant dew point corrosion; 3, dust stratification and ash disposal; 4, thermal compensation; 5, slip.Traditional air preheater does not all address these problems fully.Such as, plate air preheater has advantages such as high-efficiency compact, but at the low-temperature zone station, if select 304 stainless steels such as grade for use, the dew-point corrosion resistant ability, service life is short.As select the material of anti-dew point corrosion for use, cost is too high again.Therefore the corrosion resistant plate regenerative air heater is suitable for the high temperature section station.
Summary of the invention
The purpose of this utility model is in order to overcome problems of the prior art, a kind of plate air preheater of low temperature resistant dew point corrosion to be provided.
The plate air preheater of a kind of low temperature resistant dew point corrosion of the present utility model comprises clamping plate, heat transfer core body, stay bolt, expansion joint, it is characterized in that: described clamping plate and stay bolt seam forming apparatus framework; The plate tube side runner two ends of heat transfer core body are welded to connect with the end face of two expansion joints respectively, and the other end of expansion joint and device framework are welded to connect, and constitute equipment integrating.
Described heat transfer core body is full welded plate formula heat transfer core body, and the heat transfer core body is formed by some plate pipes, tooth plate, liner plate seam.
Described plate pipe is formed by two plate seam, and plate tube outer surface enamel is handled.
Described plate is two-sided bubbling corrugated cardboard sheet, distance between plates 8 ~ 12mm.
The utility model compared with prior art has the following advantages:
1, the utility model heat transfer core body is the board-like heat transfer core body of full welded type, heat transfer efficiency height, compact conformation, zero leakage, and design has the expansion joint structure, and the thermal compensation ability is good.
2, the utility model heat transfer core body adopts carbon steel material, and flue gas flow channel wall enamel is handled, low cost of manufacture, and anti-dew point corrosion is strong, and smooth flue gas flow channel enamel wall makes flow resistance low simultaneously, is difficult for dust stratification, and is easy to ash disposal.
Description of drawings
Below in conjunction with the accompanying drawing explanation detailed to the specific embodiment of the present utility model.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model STRUCTURE DECOMPOSITION schematic diagram.
Fig. 3 is the utility model heat transfer core schematic diagram.
Fig. 4 is the utility model plate tubular construction schematic diagram.
Among the figure:
1 – clamping plate, 2 – heat transfer core bodys
3 – stay bolts, 4 – expansion joints
5 – plate pipes, 6 – tooth plates
7 – liner plates, 8 – plates
9 – plate tube side runners, 10 – shell side runners.
The specific embodiment
The plate air preheater of a kind of low temperature resistant dew point corrosion as depicted in figs. 1 and 2 comprises clamping plate 1, heat transfer core body 2, stay bolt 3, expansion joint 4, clamping plate 1 and stay bolt 3 seam forming apparatus frameworks; Plate tube side runner 9 two ends of heat transfer core body 2 are welded to connect with the end face of two expansion joints 4 respectively, and the other end of expansion joint 4 and device framework are welded to connect, and constitute equipment integrating.Make to have good thermal compensation ability between heat transfer core body 2 and device framework, air leak rate of air curtain is near zero leakage simultaneously.
The core body 2 that conducts heat as shown in Figure 3 is full welded plate formula heat transfer core body, and heat transfer core body 2 is formed by some plate pipes 5, tooth plate 6, liner plate 7 seam.Cryogenic air limp tube side runner 9, flue gas is walked shell side runner 10.Heat transfer core body 2 all adopts carbon steel material.
The plate pipe is formed by two plate 8 seam as shown in Figure 4, and plate tube outer surface enamel is handled.So improved the anti-dew point corrosion ability of equipment greatly, and low cost of manufacture, owing to the enamel layer very thin thickness, the heat exchanging effectiveness affects can be ignored simultaneously.Plate 8 is two-sided bubbling corrugated cardboard sheet, distance between plates 8 ~ 12mm.
Claims (4)
1. the plate air preheater of a low temperature resistant dew point corrosion comprises clamping plate (1), heat transfer core body (2), stay bolt (3), expansion joint (4), it is characterized in that: described clamping plate (1) and stay bolt (3) seam forming apparatus framework; Plate tube side runner (9) two ends of heat transfer core body (2) are welded to connect with the end face of two expansion joints (4) respectively, and other end and the device framework of expansion joint (4) are welded to connect, and constitute equipment integrating.
2. the plate air preheater of a kind of low temperature resistant dew point corrosion as claimed in claim 1, it is characterized in that: described heat transfer core body (2), be full welded plate formula heat transfer core body, heat transfer core body (2) is formed by some plate pipes (5), tooth plate (6), liner plate (7) seam.
3. the plate air preheater of a kind of low temperature resistant dew point corrosion as claimed in claim 2, it is characterized in that: described plate pipe is formed by two plates (8) seam, and plate tube outer surface enamel is handled.
4. the plate air preheater of a kind of low temperature resistant dew point corrosion as claimed in claim 3, it is characterized in that: described plate (8) is two-sided bubbling corrugated cardboard sheet, distance between plates 8 ~ 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200016072U CN203147803U (en) | 2013-01-04 | 2013-01-04 | A plate type air preheater resistant to low temperature dew point corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200016072U CN203147803U (en) | 2013-01-04 | 2013-01-04 | A plate type air preheater resistant to low temperature dew point corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147803U true CN203147803U (en) | 2013-08-21 |
Family
ID=48975323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200016072U Expired - Fee Related CN203147803U (en) | 2013-01-04 | 2013-01-04 | A plate type air preheater resistant to low temperature dew point corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203147803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754510A (en) * | 2013-12-30 | 2014-04-30 | 冯涛 | All-welded plate tube type heater for wax oil storage tanks |
| CN115451714A (en) * | 2022-08-17 | 2022-12-09 | 中国石油化工股份有限公司 | Bundling plate air preheater |
-
2013
- 2013-01-04 CN CN2013200016072U patent/CN203147803U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754510A (en) * | 2013-12-30 | 2014-04-30 | 冯涛 | All-welded plate tube type heater for wax oil storage tanks |
| CN115451714A (en) * | 2022-08-17 | 2022-12-09 | 中国石油化工股份有限公司 | Bundling plate air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |