CN101726195A - Stainless steel finned tube heat exchanger for residual heat recovery - Google Patents
Stainless steel finned tube heat exchanger for residual heat recovery Download PDFInfo
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- CN101726195A CN101726195A CN200910193563A CN200910193563A CN101726195A CN 101726195 A CN101726195 A CN 101726195A CN 200910193563 A CN200910193563 A CN 200910193563A CN 200910193563 A CN200910193563 A CN 200910193563A CN 101726195 A CN101726195 A CN 101726195A
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- stainless steel
- heat exchanger
- heat
- fin
- bobbin carriage
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a stainless steel finned tube heat exchanger for residual heat recovery, which comprises a working fluid inlet tube box, a tube plate, a flue gas outlet tube box, an integral fin, a working fluid outlet tube box and a flue gas inlet tube box; a plurality of internal thread stainless steel heat transfer tubes and the integral fin which is arranged on the heat transfer tubes by expanding connection through connecting circular holes form a core body of the heat exchanger; two ends of each internal thread stainless steel heat transfer tube of the core body of the heat exchanger are connected with the tube plate and the tube plate of the working fluid outlet tube box through the connecting circular holes; the integral fin is provided with disturbed flow slots and the connecting circular holes or connecting elliptical holes which are evenly distributed on the integral fin; and the integral fin, the heat transfer tubes, a housing of the heat exchanger, the inlet tube box, the tube plate, the flue gas outlet tube box, the working fluid outlet tube box and the flue gas inlet tube box are all prepared by adopting austenitic stainless steel. The stainless steel finned tube heat exchanger for residual heat recovery has the advantages of excellent corrosion resistance performance, high heat transfer efficiency and convenient large-scale production.
Description
Technical field
The present invention relates to a kind of heat exchange of heat pipe, particularly relate to stainless steel finned tube heat exchanger for residual heat recovery, be used for the waste heat recovery of industrial discharge flue gas, be specially adapted to the flue gas waste heat recovery of corrosive substances such as chloride, sulphur.
Background technology
Industrial Boiler is the main thermal powerplant of China, along with China's rapid economic development, energy resource consumption increases day by day, and energy consumption height, the high one of the main reasons of pollution are exactly the fume emission of boiler, general exhaust gas temperature about 200 ℃, have in addition up to 300 ℃.So high exhaust gas temperature had both been wasted a large amount of energy, caused the serious environmental thermal pollution again.
Coal-fired, oil burning boiler discharges in the flue gas and contains SO
2, SO
3, the acid gas of corrosivity such as NOx, HCl, HF, H
2O, O
2Deng the corrosive medium composition, the flue-gas temperature scope is about 150～300 ℃, can adapt to the bigger variation of flue-gas temperature.The former flue gas of discharged from coal-fired boiler is dry state, ordinary circumstance can not cause corrosion to equipment, but in the gas cleaning process, flue-gas temperature is lowered to below the dew point, dewfall can appear in equipment surface, form acid solution droplet or liquid films such as dilute sulfuric acid, sulfurous acid, hydrochloric acid, hydrofluoric acid, cause corrosion thus.Corrosion-resistant for strengthening stainless heat exchanger, particularly containing Cl
-Environment in the ability of stress corrosion dehiscence resistant; stainless steel fin and heat-transfer pipe outer surface are carried out surface modification treatment; the coating (between 100-1500 ℃) of oxide etch and other dielectric corrosion under the employing adaptation hot environment; as organosilicon series or inorganic silicon series high-temperature resistant coating stainless steel fin and heat-transfer pipe outer surface are sprayed; form fine and close diaphragm, improve the ability of dew point corrosion effectively.
Existing flue gas waste heat recovery finned tube exchanger mainly adopts heat-transfer pipes such as carbon steel, stainless steel tube, copper pipe, and the fin of outside generally adopts carbon steel fin, copper fin or aluminium fin.Because the corrosiveness of sour gas in the flue gas, cause heat-transfer pipe and fin all to be corroded, the vibration that when adding flow of flue gas heat-transfer pipe is caused, make fin and heat-transfer pipe loosening, heat-transfer effect descends rapidly, leakage phenomenon can occur when serious, shorten the service life of heat recovery heat exchanger greatly.Because there is serious corrosion phenomenon in many occasions, the countermeasure one of employing is a surface anticorrosion, is exactly to select anti-corrosion new material for use on the other hand.
The thermal conductivity factor of copper is about 300～370W/ (mK), steel be about 50W/ (mK), copper is the good conductor of heat, and copper has good toughness and extensibility, traditional heat-transfer pipe adopts copper pipe, and the fin of outside generally adopts copper fin or aluminium fin, is convenient to expanded joint, make copper pipe become as a whole, have low fluid resistance, good heat transfer effect with fin.But copper pipe is easily by acid corrosion, inefficacy.Carbon steel has structural strength height, advantage that cost is low, and selecting carbon steel for use under general operating mode is heat-transfer pipe, carries out anticorrosion surface treatment again, is the preferred material of heat transmission equipments such as radiator, heater.But carbon steel fragility is strong, and general carbon steel finned tube is that carbon steel pipe integral body is processed into finned tube, generally is used for pressure height, non-corrosive place.The process technology of stainless sheet steel has had the Thin Stainless Steel panel products that 0.01mm has been arranged in the very big progress, particularly market in recent years, and price is tending towards rationally, for the stainless steel extensive use provides market condition.And having the bearing capacity of seam stainless steel tube to reach 1.5Mpa, the rubber tube expanding in the tube expansion technique, the pressure-bearing of hydraulic expanding tube and technology are enough to satisfy the close-coupled between stainless steel tube and fin, have solved Thin Stainless Steel fin and stainless steel tube expanded joint problem.
Summary of the invention
The object of the present invention is to provide a kind of fine corrosion resistance, heat transfer efficiency height, be convenient to the stainless steel finned tube heat exchanger for residual heat recovery of large-scale production.
Objects of the present invention are achieved through the following technical solutions:
A kind of stainless steel finned tube heat exchanger for residual heat recovery comprises working medium inlet bobbin carriage, tube sheet, exhanst gas outlet bobbin carriage, monoblock type fin, sender property outlet bobbin carriage and smoke inlet bobbin carriage; Fin-tube integral type changes to hold about housing and is respectively equipped with working medium inlet bobbin carriage and sender property outlet bobbin carriage, and upper and lower end is respectively equipped with exhanst gas outlet bobbin carriage and smoke inlet bobbin carriage; Many internal thread stainless steel heat-transfer pipes with form heat exchanger core body by connecting the monoblock type fin of circular hole expanded joint on this heat-transfer pipe; Many internal thread stainless steel heat-transfer pipe two ends of heat exchanger core body are by connecting the tube sheet that circular hole connects tube sheet and sender property outlet bobbin carriage; The flow-disturbing groove that described monoblock type fin is provided with this monoblock type fin of even distribution with connect circular hole or be connected elliptical aperture; Described monoblock type fin, heat-transfer pipe, heat exchanger shell, inlet bobbin carriage, tube sheet, exhanst gas outlet bobbin carriage, sender property outlet bobbin carriage and smoke inlet bobbin carriage all adopt the austenitic stainless steel preparation.
Described flow-disturbing groove is a rectangle, is evenly distributed on the monoblock type fin plate, and the length of flow-disturbing groove and wide ratio are 1.5～3, height 2～3mm; Arrangement of described connection circular hole fork or in-line arrangement connect circular hole and be provided with 3～9 rows on fin plates 1 on fin plate, are used for and the heat-transfer pipe expanded joint.
Described flow-disturbing groove is a ripple type, the height 4～10mm on these ripple type flow-disturbing groove 4 outstanding monoblock type fin 1 planes.
Described monoblock type fin is provided with rectangle flow-disturbing groove and connects ellipse hole, and rectangle flow-disturbing groove is evenly distributed on the fin plate, and the length of flow-disturbing groove and wide ratio are 1.5～3 height, 4～10mm.
Described austenitic stainless steel is preferably austenitic stainless steel 304 or 316L type.
Described austenitic stainless steel is preferably austenite-ferrite two phase stainless steel SAF2205.
With respect to prior art, heat transfer equipment of the present invention has following advantage:
(1) heat exchanger fin of the present invention, heat-transfer pipe, heat exchanger shell etc. all adopt austenite or two phase stainless steel material, have good anti-corrosion capability, design pressure, machinery and heat fatigue tolerance.
(2) the monoblock type fin surface has the flow-disturbing protruded object of rectangle or ripple type structure, and the fluid streamwise reduces in highlight speed, static pressure increases; Reduce at the increase of recessed place speed, static pressure, make the variation of flow velocity and pressure cycle, can strengthen the turbulence level of flow of flue gas, the boundary layer when destroying flow of flue gas simultaneously, augmentation of heat transfer effect.
(3) heat-transfer pipe adopts inner groovy or spiral grooved tube, increased the heat transfer area of heat-transfer pipe, increase by about 10% heat transfer area than plain tube with Guan Jing, help the change of working medium fluid flow state in the heat-transfer pipe simultaneously, particularly working medium is heated to boiling point, when forming the stream-liquid two-phase flow state, rough surface peening the contact of liquid-vaqor interface, promote heat exchange preferably.
(4) heat-transfer pipe adopts indent pipe or spiral grooved tube circular, oval structure.Circular heat-transfer pipe machine-shaping maturation is convenient to standardization and industrialization, reduces production costs.The machine-shaping relative complex that ellipse is conducted heat, cost is slightly high, but the ellipse heat-transfer pipe has hydrodynamics and augmentation of heat transfer effect preferably, compare with pipe, under identical condition, the heat transfer girth of elliptical tube is bigger than pipe, and therefore the thermal resistance in the pipe is little, the heat transfer of medium in helping managing, the heat transfer area of elliptical tube is bigger by 15% than the pipe in same cross section.Elliptical tube is streamlined in addition, plunders in the air-flow horizontal, moves after the point of flow separation, thereby has reduced the whirlpool district behind the pipe, and the boundary layer of elliptical tube first half is thinner than pipe in addition.
Description of drawings
Fig. 1 is the stainless steel finned tube heat exchanger for residual heat recovery structural representation.
Fig. 2 is the monoblock type fin structure schematic diagram of Fig. 1, and the flow-disturbing groove is a rectangle.
Fig. 3 is a monoblock type fin structure schematic diagram, and the flow-disturbing groove is a ripple type.
Fig. 4 is the monoblock type fin structure schematic diagram of Fig. 1, and connection holes is an ellipse hole.
Fig. 5 is for having tongue and groove stainless steel heat-transfer pipe structural representation.
Specific embodiments
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
As shown in Figure 1, stainless steel finned tube heat exchanger for residual heat recovery comprises working medium inlet bobbin carriage 6, tube sheet 7, exhanst gas outlet bobbin carriage 8, monoblock type fin 1, sender property outlet bobbin carriage 10 and smoke inlet bobbin carriage 11.End is respectively equipped with working medium inlet bobbin carriage 6 and sender property outlet bobbin carriage 10 about heat exchanger shell, and the upper and lower side of heat exchanger shell is respectively equipped with exhanst gas outlet bobbin carriage 8 and smoke inlet bobbin carriage 11, for high-temperature flue gas is imported and exported; Many internal thread stainless steel heat-transfer pipes with form heat exchanger core body by connecting the monoblock type fin 1 of circular hole 2 expanded joints on this heat-transfer pipe; Many internal thread stainless steel heat-transfer pipe two ends of heat exchanger core body are by connecting the tube sheet 9 that circular hole 2 connects tube sheet 7 and sender property outlet bobbin carriage 10; During preparation, heat exchanger core body and the tube sheet 7 in the working medium inlet bobbin carriage 6, the tube sheet 9 of sender property outlet bobbin carriage 10 that will have the monolithic devices fin carry out expanded joint; Then smoke inlet bobbin carriage 11,7 welding of exhanst gas outlet case 8 tube sheets are formed stainless steel finned tube heat exchanger for residual heat recovery.Monoblock type fin 1, heat-transfer pipe, heat exchanger shell, inlet bobbin carriage 6, tube sheet 7, exhanst gas outlet bobbin carriage 8, sender property outlet bobbin carriage 10 and smoke inlet bobbin carriage 11 etc. are Cai Yongshi body stainless steel 304 or 316L all, or material adopts austenite-ferrite two phase stainless steel 2205, these materials have good anti-corrosion capability, have good compressive resistance, machinery and heat fatigue tolerance simultaneously.Especially be fit to UTILIZATION OF VESIDUAL HEAT IN coal-fired, oil burning boiler discharging flue gas, these flue gases contain SO
2, SO
3, the acid gas of corrosivity such as NOx, HCl, HF, select austenitic stainless steel 304 or 316L, if contain in the flue gas outside the above-mentioned corrosive gas, also contain Cl
-Deng the corrosive medium composition, then adopt austenite-ferrite two phase stainless steel SAF2205.
As shown in Figure 3, monoblock type fin 1 is provided with ripple type flow-disturbing groove 4 and connects circular hole 2, the height 4～10mm on ripple type flow-disturbing groove 4 outstanding monoblock type fin 1 planes.Connect circular hole 2 and evenly come on the fin plate 1, connect circular hole 2 fin plates 1 and be provided with 3～9 rows, be used for and the heat-transfer pipe expanded joint.Reserve the circular ports of the equilateral triangle arrangement that is connected with heat-transfer pipe.
Shown in Fig. 4 was, the monoblock type fin comprised fin plate 1, rectangle flow-disturbing groove 3 and connects ellipse hole 5, and rectangle flow-disturbing groove 3 is evenly distributed on the fin plate 1, between 1.5～3 times of the length of flow-disturbing groove 3 and the wide ratios, and 4～10mm highly.
During preparation, in Fig. 2, Fig. 3 and the monoblock type fin shown in Figure 4, the length of rectangle fin and wide ratio are between 1.5～3 times, height 4～the 10mm on whole ripple type flow-disturbing groove 4 outstanding monoblock type fin 1 planes, according to this structural design fin die, produce with the stamping forming mode of mould on this basis.
As shown in Figure 5, stainless steel heat-transfer pipe adopts austenitic stainless steel 304 or 316L thin plate rolling groove or helicla flute, after moulding on garden pipe or the elliptical tube make-up machine, high-frequency welding again, the stainless steel heat-transfer pipe of producing need carry out voltage-withstand test, voltage endurance capability is greater than 1.0Mpa, and the pipe ovality must not exceed ± 0.2mm, and pipe total length deviation must not surpass ± 5mm.1.5～2.5 times of the ratios of the major and minor axis of elliptical tube.Above-mentioned monoblock type fin 1 is being nested in the stainless steel heat-transfer pipe outside, spacing of fin 2.1mm-3.5mm adopts the mode of hydraulic expanding tube that monoblock type fin and heat-transfer pipe are carried out expanded joint, and the expansibility of stainless steel heat-transfer pipe is controlled in 2.3%.Stainless steel heat-transfer pipe and front end tube sheet 7, rear end tube sheet adopt the mode of TIG welding to weld, and pipe row number is 3～9 rows (heat-transfer pipe of monolithic devices fin is 3 rows among Fig. 2), and the distance of every comb is 1.5～2.5 times of Guan Jing.If the corrosivity component content height in the waste heat recovery flue gas; above-mentioned stainless steel fin and heat-transfer pipe outer surface are carried out surface modification treatment; high-temperature resistant coating sprays stainless steel fin and heat-transfer pipe outer surface, forms fine and close diaphragm, improves the ability of dew point corrosion effectively.
According to the stainless steel fin heat transfer pipe quantity of the definite needs of thermic load size, make the stainless steel finned tube heat exchanger.Stainless steel elliptical tube traverse (major axis is along airflow direction, and the flow of flue gas reynolds number range is Re=2000-15000) and place (major axis uprush direction, flow of flue gas reynolds number range Re=3000-15000) vertically.
The course of work of stainless steel finned tube heat exchanger for residual heat recovery: will be incorporated into Fig. 4 smoke inlet 11 through the flue gas of dust removal process, by with the contacting of monoblock type fin and heat-transfer pipe, carry out heat exchange, heated from working medium inlet 6, tube sheet 7 and entered the working medium the heat-transfer pipe, obtained heat energy, with the heat recovery in the flue gas.The working medium that has obtained fume afterheat flows out from sender property outlet tube sheet 9, outlet bobbin carriage 10, enters the place that need utilize heat energy.The advantage of this heat exchanger is to adopt resistant material such as stainless steel, heat-transfer pipe adopts the monolithic devices fin outward, the present invention is monolithic devices rectangle fin and rippled fin, changed the flow regime of fluid, destroyed the boundary layer of fluid, strengthened the turbulivity of fluid, strengthened the heat exchange of fluid and tube wall, it is strong to have the disturbance ability, heat-transfer effect is good, resistance is low, good anti seismic efficiency, heat-transfer pipe is internal thread round tube and ellipse pipe, female screw heat-transfer pipe machine-shaping maturation is convenient to standardization and industrialization, the machine-shaping relative complex that ellipse is conducted heat, cost is slightly high, but the ellipse heat-transfer pipe has hydrodynamics and augmentation of heat transfer effect preferably, compares with pipe, under identical condition, the heat transfer girth of elliptical tube is bigger than pipe, therefore the thermal resistance in the pipe is little, the heat transfer of medium in helping managing, and the heat transfer area of elliptical tube is bigger by 15% than the pipe in same cross section.The spread pattern of heat-transfer pipe is that equilateral triangle is arranged, and has high-efficiency low-resistance, is difficult for incrustation, the effect of long service life.
The present invention is according to the characteristic of hydrodynamics and the thermal conduction study of finned tube exchanger, on the basis of the materials such as stainless steel, the outer fin of heat-transfer pipe adopts the fin structure of rectangle, ripple type, employing garden pipe (elliptical tube) is with internal thread or tongue and groove structure in the heat-transfer pipe, purpose is to destroy the turbulivity of the boundary layer of fluid, enhance fluid, reduction flow resistance, augmentation of heat transfer reaches the recuperation of heat effect of compact conformation, high-efficiency low-resistance, long service life.
Have the flow-disturbing hole of rectangle, ripple type on the integral fins of the present invention, it can make the horizontal flow perturbation of plunderring, thus the boundary layer on attenuate tube wall and the fin, the heat exchange in the enhanced tube outside. The fin of same material, rectangular fin is higher by 8% than Round fin efficient.
Claims (6)
1. a stainless steel finned tube heat exchanger for residual heat recovery comprises working medium inlet bobbin carriage, tube sheet, exhanst gas outlet bobbin carriage, monoblock type fin, sender property outlet bobbin carriage and smoke inlet bobbin carriage; Fin-tube integral type changes to hold about housing and is respectively equipped with working medium inlet bobbin carriage and sender property outlet bobbin carriage, and upper and lower end is respectively equipped with exhanst gas outlet bobbin carriage and smoke inlet bobbin carriage; It is characterized in that: many internal thread stainless steel heat-transfer pipes with form heat exchanger core body by connecting the monoblock type fin of circular hole expanded joint on this heat-transfer pipe; Many internal thread stainless steel heat-transfer pipe two ends of heat exchanger core body are by connecting the tube sheet that circular hole connects tube sheet and sender property outlet bobbin carriage; The flow-disturbing groove that described monoblock type fin is provided with this monoblock type fin of even distribution with connect circular hole or be connected elliptical aperture; Described monoblock type fin, heat-transfer pipe, heat exchanger shell, inlet bobbin carriage, tube sheet, exhanst gas outlet bobbin carriage, sender property outlet bobbin carriage and smoke inlet bobbin carriage all adopt the austenitic stainless steel preparation.
2. stainless steel finned tube heat exchanger for residual heat recovery according to claim 1 is characterized in that: described flow-disturbing groove is a rectangle, is evenly distributed on the monoblock type fin plate, and the length of flow-disturbing groove and wide ratio are 1.5～3, height 2～3mm; Arrangement of described connection circular hole fork or in-line arrangement connect circular hole and be provided with 3～9 rows on fin plates 1 on fin plate, are used for and the heat-transfer pipe expanded joint.
3. stainless steel finned tube heat exchanger for residual heat recovery according to claim 1 is characterized in that: described flow-disturbing groove is a ripple type, the height 4～10mm on these ripple type flow-disturbing groove 4 outstanding monoblock type fin 1 planes.
4. stainless steel finned tube heat exchanger for residual heat recovery according to claim 1, it is characterized in that: described monoblock type fin is provided with rectangle flow-disturbing groove and connects ellipse hole, rectangle flow-disturbing groove is evenly distributed on the fin plate, and the length of flow-disturbing groove and wide ratio are 1.5～3 height, 4～10mm.
5. stainless steel finned tube heat exchanger for residual heat recovery according to claim 1 is characterized in that: described austenitic stainless steel is austenitic stainless steel 304 or 316L type.
6. stainless steel finned tube heat exchanger for residual heat recovery according to claim 1 is characterized in that: described austenitic stainless steel is austenite-ferrite two phase stainless steel SAF2205.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101935636A CN101726195B (en) | 2009-10-31 | 2009-10-31 | Stainless steel finned tube heat exchanger for residual heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101935636A CN101726195B (en) | 2009-10-31 | 2009-10-31 | Stainless steel finned tube heat exchanger for residual heat recovery |
Publications (2)
| Publication Number | Publication Date |
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| CN101726195A true CN101726195A (en) | 2010-06-09 |
| CN101726195B CN101726195B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101935636A Expired - Fee Related CN101726195B (en) | 2009-10-31 | 2009-10-31 | Stainless steel finned tube heat exchanger for residual heat recovery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538517A (en) * | 2012-02-29 | 2012-07-04 | 邵远金 | Flue gas afterheat recycling device |
| CN103759558A (en) * | 2014-01-10 | 2014-04-30 | 上海电力学院 | Low-temperature boiler exhaust heat utilization device |
| CN104328237A (en) * | 2014-11-17 | 2015-02-04 | 许军 | Heat exchange device for blast furnace circulating water and method for comprehensively utilizing waste heat of circulating water by using device |
| CN108267032A (en) * | 2018-03-07 | 2018-07-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of heat-exchanger rig and system with honeycomb |
| CN109341380A (en) * | 2018-11-28 | 2019-02-15 | 福建立信换热设备制造股份公司 | A kind of compressed air waste-heat recycling special equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5694194A (en) * | 1979-12-27 | 1981-07-30 | Taisei Kogyo Kk | Water cooling type oil cooler |
| JP2834339B2 (en) * | 1991-02-21 | 1998-12-09 | 松下電器産業株式会社 | Finned heat exchanger |
| JP2000314600A (en) * | 1999-03-02 | 2000-11-14 | Sanyo Electric Co Ltd | Heat exchanger |
| CN201059903Y (en) * | 2007-07-12 | 2008-05-14 | 珠海格力电器股份有限公司 | Tube-fin heat exchanger with different sheet combinations |
| CN101245974A (en) * | 2008-02-26 | 2008-08-20 | 西安交通大学 | Finned heat exchanger |
-
2009
- 2009-10-31 CN CN2009101935636A patent/CN101726195B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538517A (en) * | 2012-02-29 | 2012-07-04 | 邵远金 | Flue gas afterheat recycling device |
| CN103759558A (en) * | 2014-01-10 | 2014-04-30 | 上海电力学院 | Low-temperature boiler exhaust heat utilization device |
| CN104328237A (en) * | 2014-11-17 | 2015-02-04 | 许军 | Heat exchange device for blast furnace circulating water and method for comprehensively utilizing waste heat of circulating water by using device |
| CN108267032A (en) * | 2018-03-07 | 2018-07-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of heat-exchanger rig and system with honeycomb |
| CN109341380A (en) * | 2018-11-28 | 2019-02-15 | 福建立信换热设备制造股份公司 | A kind of compressed air waste-heat recycling special equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101726195B (en) | 2012-08-22 |
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