CN2718493Y - Plate type air preheater - Google Patents
Plate type air preheater Download PDFInfo
- Publication number
- CN2718493Y CN2718493Y CN 200420084008 CN200420084008U CN2718493Y CN 2718493 Y CN2718493 Y CN 2718493Y CN 200420084008 CN200420084008 CN 200420084008 CN 200420084008 U CN200420084008 U CN 200420084008U CN 2718493 Y CN2718493 Y CN 2718493Y
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- heat exchanger
- lining
- transfer board
- exchanger plates
- 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 - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000002918 waste heat Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a plate air heater for waste heat recovery of heating furnace, including heat transfer board 1, baffle 2, bush 3, baffle 4, nut 5, long bolt 6, bush 7, one deck heat transfer board group is constituteed to per two heat transfer boards 1, separate through bush 7 between every heat transfer board 1, lateral part between every heat transfer board 1 is equipped with baffle 2, there is bush 3 in the middle of every heat transfer board group, the bight of every heat transfer board group is equipped with baffle 4, heat transfer board 1 passes through nut 5, long bolt 6 is fixed, operation elasticity is big, the air leakage coefficient is little, the operation is reliable and can be applied to that the annual temperature variation range is big in the north that can be applied to of high temperature dusty flue gas and keep the dew point temperature invariable basically, reduce the flue gas corrosion.
Description
Relate to the field
The utility model relates to a kind of plate air preheater, belongs to the supplementary heat exchanger of industrial heating furnace, is used for the heat recovery of heating furnace.
Background technology
Air preheater commonly used at present has forms such as bundled tube, heat pipe-type, swinging." bundled tube air preheater " be dust stratification, deashing difficulty, cycle of operation weak point easily; " heat pipe preheater " cost height, easily inefficacy; " rotary regenerative air preheater " made and required height, power consumption is big, air leakage coefficient is big; More than several air preheaters all have certain shortcoming.
The purpose of this utility model is to provide that a kind of resistance is little, good heat-transfer, long service life, the cycle of operation are long, overcomes effectively that existing heat exchanger plates distortion is big, air leakage coefficient is big, adapts to a kind of plate air preheater of shortcomings such as the ability of temperature Change is little.
The utility model is achieved in that and comprises heat exchanger plates 1, dividing plate 2, lining 3, dividing plate 4, nut 5, stay bolt 6, lining 7, per two heat exchanger plates 1 are formed one deck plate package, separate by lining 7 between every heat exchanger plates 1, sidepiece between every heat exchanger plates 1 is equipped with dividing plate 2, lining 3 is arranged in the middle of every group of plate package, the bight of every group of plate package is provided with dividing plate 4, and heat exchanger plates 1 is fixing by nut 5, stay bolt 6.
The utility model also adopts following technical scheme:
Dividing plate 4 at least more than one.
Lining 3, lining 7 at least more than one.
Form exhaust gases passes with the heat exchanger plates that dividing plate 2 and lining 7 separate, form air duct with the heat exchanger plates that dividing plate 4 and lining 3 separate, air flow channel is vertical mutually with flue gas flow channel.
Advantage of the present utility model is: utilize the long characteristics of plate type heat exchanger good heat-transfer, long service life, the cycle of operation, provide that a kind of operating flexibility is big, air leakage coefficient is little, reliable and can be applicable to the novel air preheater of high temperature dust flue gas.Characteristics of the present utility model also are to be applied to the north that year the temperature Change amplitude is big and keep the exhaust gas temperature substantially constant, reduce the flue gas dew point corrosion.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Specific embodiments
As shown in drawings, this air preheater is made up of heat exchanger plates 1, dividing plate 2, lining 3, dividing plate 4, nut 5, stay bolt 6 and lining 7.The parallel heat exchanger plates of multilayer is formed series of passages.Form exhaust gases passes with the heat exchanger plates that dividing plate 2 and lining 7 separate, form air duct with the heat exchanger plates that dividing plate 4 and lining 3 separate, stay bolt 6 and nut 5 are fastening with the multilayer heat exchanger plates.
The air inlet and outlet runner is communicated with the by-pass flow pipe, and establishes control valve,, opens greatly/turn down control valve the air capacity increasing/minimizing of by-pass flow, the heat that minimizing/increase cold air absorbs, the substantially constant of maintenance exhaust gas temperature gradually along with temperature decline/rising.
General heat exchanger adopts the flow process number that increases fluid in order to strengthen the heat exchange effect, thereby the prolongation holdup time of fluid in heat exchanger makes heat exchange more abundant.Air and flue gas are single process among the figure.Special character of the present utility model is, one group of lining of longshore current body flow direction is replaced by dividing plate, can increase the flow process number of this side liquid.
In the outer rim of runner, the leakage that fully contacts the minimizing fluid of heat exchanger plates and dividing plate, air leakage coefficient is less than 1.5%.
Lining effect between runner is, prevents the thermal deformation of heat exchanger plates under running temperature, guarantees the unobstructed of runner, improves operational reliability; Disturb flowing of fluid, improve convection transfer rate.
Applied range of the present utility model: for the low temperature low-corrosiveness, heat exchanger plates can be used the ordinary carbon steel plate; For high temperature or highly corrosive, heat exchanger plates adopts corrosion resistant plate; For ash-laden gas, because runner is unobstructed, flow velocity is moderate, few, the easy-to-clean ash of dust stratification.
Cost of the present utility model be " heat pipe preheater " 1/2～1/3, the cycle of operation be " heat pipe-type and bundled tube air preheater " 1.5～2 times and " rotary regenerative air preheater " power consumption is low, be " heat pipe preheater " service life " 1.5～2 times, unit volume heat exchange amount be " the bundled tube air preheater copy 1.3～2, unit volume heat exchange amount be " bundled tube air preheater " 1.5～2; Compare with other plate air preheater, air leakage coefficient is low, reliable, and operating flexibility is big.
Claims (4)
1, a kind of plate air preheater, comprise heat exchanger plates (1), dividing plate (2), lining (3), dividing plate (4), nut (5), stay bolt (6), lining (7), it is characterized in that: per two heat exchanger plates (1) are formed one deck plate package, separate by lining (7) between every heat exchanger plates (1), sidepiece between every heat exchanger plates (1) is equipped with dividing plate (2), lining (3) is arranged in the middle of every group of plate package, the bight of every group of plate package is provided with dividing plate (4), and heat exchanger plates (1) is fixing by nut (5), stay bolt (6).
2, a kind of plate air preheater according to claim 1 is characterized in that: dividing plate (4) at least more than one.
3, a kind of plate air preheater according to claim 1 is characterized in that: lining (3), lining (7) at least more than one.
4, a kind of plate air preheater according to claim 1, it is characterized in that: form exhaust gases passes with the heat exchanger plates (1) that dividing plate (2) and lining (7) separate, form air duct with the heat exchanger plates (1) that dividing plate (4) and lining (3) separate, air flow channel is vertical mutually with flue gas flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084008 CN2718493Y (en) | 2004-07-16 | 2004-07-16 | Plate type air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084008 CN2718493Y (en) | 2004-07-16 | 2004-07-16 | Plate type air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718493Y true CN2718493Y (en) | 2005-08-17 |
Family
ID=34894019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084008 Expired - Lifetime CN2718493Y (en) | 2004-07-16 | 2004-07-16 | Plate type air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718493Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022930A (en) * | 2010-12-14 | 2011-04-20 | 江苏新中环保股份有限公司 | High-temperature flue gas cooling equipment |
| CN102155745A (en) * | 2011-04-22 | 2011-08-17 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
-
2004
- 2004-07-16 CN CN 200420084008 patent/CN2718493Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022930A (en) * | 2010-12-14 | 2011-04-20 | 江苏新中环保股份有限公司 | High-temperature flue gas cooling equipment |
| CN102155745A (en) * | 2011-04-22 | 2011-08-17 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
| CN102155745B (en) * | 2011-04-22 | 2012-07-25 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140716 Granted publication date: 20050817 |