CN102278244A - Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater - Google Patents
Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater Download PDFInfo
- Publication number
- CN102278244A CN102278244A CN2011102074650A CN201110207465A CN102278244A CN 102278244 A CN102278244 A CN 102278244A CN 2011102074650 A CN2011102074650 A CN 2011102074650A CN 201110207465 A CN201110207465 A CN 201110207465A CN 102278244 A CN102278244 A CN 102278244A
- Authority
- CN
- China
- Prior art keywords
- inner housing
- heat exchanger
- fin
- fuel oil
- metal heat
- 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.)
- Pending
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a fin-type heterogeneous metal heat exchanger with heat exchange efficiency for further improving the heat exchanger efficiency of a compact heat exchanger in the prior art. The heat exchanger comprises an outer shell and an inner shell which is positioned in the outer shell; a liquid flow channel is formed between the outer shell and the inner shell; the inner cavity of the inner shell is a flame channel; and the inner surface of the inner shell is provided with a copper or copper alloy inner fin; the outer surface of the inner shell is provided with an aluminum or aluminum alloy outer fin. Through adopting the inner fin and outer fin which are made of different materials, the potentialities of the inner fin and the outer fin are played, the heat exchange efficiency of the heat exchanger is improved, the problem that overlong prewarming and starting of an engine of a vehicle under a low-temperature environment is solved, the environment adaptability of the vehicle is improved, and the rapid and reliable starting under the low-temperature environment of the vehicle is realized.
Description
Technical field
The invention belongs to the high efficient heat exchanging technical field that is used for fuel oil and combustion heater, particularly a kind of fuel oil and combustion heater fin formula dissimilar metal heat exchanger.
Background technique
Motor low temperature assistant starting equipment (hereinafter to be referred as heater) is the important auxiliary device of the inner heating of the quick cold start-up of motor under the cryogenic conditions, car body, wind screen defrosting and accumulator cell heat preserving, and good prospects for application is at home and abroad all arranged.Heater mainly is made up of heat exchanger, burner and controller, and the quality of heat exchanger performance has wherein determined the adaptability and the reliability of the cold-starting of motor, and the heat exchanger of good effect of heat exchange can shorten the cold-starting time greatly.Increasingly serious along with the continuous appearance of modern new process, new technology, new material and energy problem, efficient, the energy-conservation heat exchanger of development and application has important practical sense.Compact heat exchanger is to expand heating surface by install fin additional on heat conduction baffle, to improve the heat exchange efficiency of whole heat exchanger, and fin is as the secondary heat transfer surface, its heat transfer area is about 10 times of heat conduction baffle, improved the heat exchange efficiency of heat exchanger greatly, but in order to adapt to fast-developing needs, the rate of heat transfer that how further to improve compact heat exchanger has become the primary technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In order further to improve the heat exchange efficiency of compact heat exchanger of the prior art, the invention provides the high fin formula dissimilar metal heat exchanger of a kind of heat exchange efficiency, by adopting the interior fin and the outer-finned of unlike material, give full play to advantage separately, improved the heat exchange efficiency of heat exchanger, solve vehicle engine warming up long problem starting time under the low temperature environment, improve the environmental suitability of vehicle, realize that fast and reliable starts under the vehicle low temperature environment.
Technological scheme:
A kind of fuel oil and combustion heater fin formula dissimilar metal heat exchanger, comprise frame and the inner housing that is positioned at frame inside, form flow channel for liquids between described frame and the inner housing, the inner chamber of described inner housing is a passage of flame, the internal surface of described inner housing is provided with copper or the interior fin of Cuprum alloy, and the outer surface of described inner housing is provided with aluminium matter or aluminum alloy outer-finned.
Fin be axially to be provided with and along a plurality of fins of the circumferential distribution of inner housing internal surface along inner housing in described, and described outer-finned be along the axial setting of inner housing and along a plurality of fins of the circumferential distribution of inner housing outer surface.
Described inner housing is a stainless steel.
All dig vertically on described inner housing internal surface and the outer surface and be shaped on some strias, an end of described interior fin and an end of outer-finned are pressed to inject stria to realize and the internal surface of inner housing and being connected of outer surface.
The thickness of fin and outer-finned is 0.5mm-1.5mm in described.
The front end of described inner housing and the front end of frame are welded on respectively on the inner side surface and outer side surface of same flange plate, a plurality of axial holes of offering between the inner side surface of described flange plate and the outer side surface are connected with described fluid passage, the rear end of described frame offers the hot fluid floss hole, and the rear end of described inner housing is a closed end.
Comprise the hot fluid discharge pipe that is positioned at described frame outside in addition, the entry end of described hot fluid discharge pipe is connected with described hot fluid floss hole.
The described inner housing of close described flange plate radially is provided with the tail gas discharging pipe that connects inner housing inside and frame outside on the anterior and corresponding frame front portion.
Technique effect:
The invention provides a kind of fuel oil and combustion heater with fin formula dissimilar metal heat exchanger, comprise inside and outside housing and be arranged on fin in the copper or Cuprum alloy on the inner housing internal surface and be arranged on aluminium matter or aluminum alloy outer-finned on the inner housing outer surface.Moment heat absorbing property in the wherein copper or Cuprum alloy under the per unit volume of fin is strong and have a heat storage capacity, elder generation suctions heat fast from red-hot flame, slow release gives inner housing to reduce heat loss again, and the fusing point of copper is above 1000 ℃, heat resistance is better, and it is directly contacted with red-hot flame; The specific heat of aluminium matter or aluminum alloy outer-finned and heat-conductive characteristic excellence and ductility are good, can be fast from the inner housing heat absorption and to the quick heat release of cold fluid; Make in the process of heat exchange, the heat absorption that fin can be a large amount of fast in the copper or Cuprum alloy, avoid heat to run off, releases of absorbing heat fast of aluminium matter or aluminum alloy outer-finned is with the raising heat exchange efficiency, shorten the starting time of vehicle motor under the severe cold environment greatly, improved environmental suitability.
Further, interior fin and outer-finned are a plurality of fins that are provided with vertically, circumferentially distribute, what make outer-finned is provided with the flow direction of direction along liquid, interior fin the injection direction of direction along flame be set so that better heat exchange between liquid and outer-finned, flame and interior fin.
Preferably, inner housing is a stainless steel, and its good heat resistance, intensity height, processability are good, but conductive performance is placed in the middle, not as copper and aluminium.Further, on the inside and outside surface of stainless steel inner housing, dig the system stria and adopt high pressure with copper or Cuprum alloy in fin and aluminium matter or aluminum alloy outer-finned be pressed in the stria of the internal surface of inner housing and outer surface, the slotting technology of pressing this channeling can reduce the interface resistance between the dissimilar metal to greatest extent, has improved heat exchange efficiency.Because the rates of thermal expansion of copper and aluminium all is higher than stainless steel, the dilatancy of the copper in back and the contacted stria of stainless steel inner housing or the dilatancy of Cuprum alloy and aluminum or aluminum alloy of being heated greater than the stainless steel stria, make that copper or Cuprum alloy in the stria are tightr with contacting of stria with aluminum or aluminum alloy, thermal resistance value reduces, and heat exchange efficiency improves.
Further, tail gas discharging pipe is arranged on the front portion of inside and outside housing, and red-hot flame forward end behind the rear end of the sealing that arrives inner housing is turned back and finally discharged from tail gas discharging pipe, has prolonged the waiting time of red-hot flame in inner housing, is beneficial to the displacement of heat.
Description of drawings
Fig. 1 is the longitudinal sectional view of fin formula dissimilar metal heat exchanger structure schematic representation;
Fig. 2 is the left-hand view of fin formula dissimilar metal heat exchanger structure schematic representation;
Fig. 3 is the schematic representation of fin formula dissimilar metal heat exchanger heat exchange core;
Fig. 4 is the inner housing generalized section of fin formula dissimilar metal heat exchanger;
Fig. 5 is the aluminium matter outer-finned schematic representation of fin formula dissimilar metal heat exchanger;
Fig. 6 is the copper interior fin schematic representation of fin formula dissimilar metal heat exchanger.
Reference character lists as follows:
The 1-frame; The 2-inner housing; The 3-outer-finned; Fin in the 4-; 5-hot fluid discharge pipe; The 6-tail gas discharging pipe; The 7-flange plate; The 8-glory hole; The import of 9a-cold fluid; 9b-hot fluid floss hole; The red-hot flame of 10a-high temperature; 10b-tail gas; The 11a-cold fluid; The 11b-hot fluid.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 is the longitudinal sectional view that fuel oil of the present invention and combustion heater are used fin formula dissimilar metal heat exchanger structure schematic representation, comprise frame 1 and inner housing 2, wherein inner housing 2 is positioned at the inside of frame 1, the front end of the front end of inner housing 2 and frame 1 is welded on respectively on the inner side surface and outer side surface of flange plate 7, offer several through holes that connect vertically between the inner side surface of flange plate 7 and the outer side surface, be cold fluid import 9a (see figure 2), form fluid course between inner housing 2 and the frame 1, the inner chamber of inner housing 2 is a passage of flame.The rear end of inner housing 2 is the closed end (see figure 4), the rear end of frame 1 offers hot fluid floss hole 9b, be connected with hot fluid discharge pipe 5 on the rear end of hot fluid floss hole 9b, cold fluid 11a enters fluid course by the cold fluid import 9a on the flange plate 7 and discharges from hot fluid floss hole 9b.Be positioned at the tail gas discharging pipe 6 of the outside that radially offers the inside that connects inner housing 2 and frame 1 on the front portion of inner housing and frame, flame from the inner side surface inside of flange plate 7, be that glory hole 8 enters in the inner chamber of inner housing 2, is passage of flame, arrive behind the rear end of inner housing 2 forward end and return finally and discharge from tail gas discharging pipe 6.Wherein, have on the internal surface of inner housing 2 and be provided with vertically and the interior fin 4 of the circumferential a plurality of copper or Cuprum alloy that distributes in edge, have on the outer surface of inner housing 2 and be provided with vertically and circumferential a plurality of aluminium matter or the aluminum alloy outer-finned 3 that distributes in edge, inner housing 2 adopts the stainless steel of intensity height, good processability, preferably, interior fin 4 and outer-finned 3 all adopt channeling press to insert (see figure 3) on internal surface that technology is connected to inner housing 2 and the outer surface.Utilize the difference of various metallic characters, moment heat absorbing property under the copper per unit volume is strong and have a heat storage capacity, the specific heat of aluminium and heat-conductive characteristic excellence and ductility are good, and stainless intensity and processability are good, by in stainless steel inner housing 2, outer surface digs the system stria and adopts high pressure that aluminium matter outer-finned 3 and copper interior fin 4 pressures are inserted on the stainless steel inner housing 2, reduced the interface resistance between the dissimilar metal to greatest extent, fin 4 quick a large amount of heat absorptions in making in the heat transfer process, avoid heat to run off, outer-finned 3 heat release that absorbs heat fast, improve heat exchange efficiency, in stainless high strength and workability be, outer-finned support fixedly is provided, so this heat exchanger has improved the transport velocity of heat greatly when increasing the heat transfer sheet area.
The shape of outer-finned 3 and interior fin 4 and quantity are different and definite according to heat exchange efficiency, outer-finned 3 shown in Fig. 5 and Fig. 6 and interior fin 4 only are a kind of mode of execution wherein, in addition, the thickness of outer-finned 3 and interior fin 4 generally between 0.5mm-1.5mm, inserts stria with the processing and the down interior outer-finned pressure of high pressure of outer-finned in convenient.
Fuel oil of the present invention and combustion heater are as follows with the working procedure of fin formula dissimilar metal heat exchanger: when the glory hole 8 of the red-hot flame 10a of high temperature by flange plate 7 enters the inner chamber of inner housing 2, pressure is inserted in fin 4 fast Absorption heats in the some copper or Cuprum alloy on the internal surface of inner housing 2, and the inner housing by stainless steel 2 is pressed some aluminium matter or the aluminum alloy outer-finneds 3 that are inserted on inner housing 2 outer surfaces with heat transferred rapidly, utilize aluminium matter or aluminum alloy outer-finned 3 characteristics of release heat fast, the heat of the red-hot flame 10a of high temperature passed to rapidly from the cold fluid import 9a of flange plate 7 enter the cold fluid 11a of fluid course (such as water, antifreeze liquid or cool air), after cold fluid 11a being rapidly heated be transformed into hot fluid 11b, discharge from hot fluid discharge pipe 5, the red-hot flame 10a of high temperature through with interior fin 4 exchange heat after tail gas 10b discharge from tail gas discharging pipe 6, whole process has been finished the heating of cold fluid 11a.
The present invention is a difference of utilizing dissimilar metal rates of thermal expansion, fusing point and thermal conduction rate, gets its heat exchanger of making of advantage process engineering of taking channeling press to insert separately, and it is little to have a compact structure volume, the advantage that heat exchange efficiency is high.
Claims (8)
1. fuel oil and combustion heater are with fin formula dissimilar metal heat exchanger, comprise frame and the inner housing that is positioned at frame inside, form flow channel for liquids between described frame and the inner housing, the inner chamber of described inner housing is a passage of flame, the internal surface of described inner housing is provided with copper or the interior fin of Cuprum alloy, and the outer surface of described inner housing is provided with aluminium matter or aluminum alloy outer-finned.
2. fuel oil according to claim 1 and combustion heater fin formula dissimilar metal heat exchanger, it is characterized in that, fin be axially to be provided with and along a plurality of fins of the circumferential distribution of inner housing internal surface along inner housing in described, and described outer-finned be along the axial setting of inner housing and along a plurality of fins of the circumferential distribution of inner housing outer surface.
3. fuel oil according to claim 2 and combustion heater is characterized in that with fin formula dissimilar metal heat exchanger described inner housing is a stainless steel.
4. fuel oil according to claim 3 and combustion heater fin formula dissimilar metal heat exchanger, it is characterized in that, all dig vertically on described inner housing internal surface and the outer surface and be shaped on some strias, an end of described interior fin and an end of outer-finned are pressed to inject stria to realize and the internal surface of inner housing and being connected of outer surface.
5. fuel oil according to claim 3 and combustion heater is characterized in that with fin formula dissimilar metal heat exchanger the thickness of described interior fin and outer-finned is 0.5mm-1.5mm.
6. according to described fuel oil of one of claim 1-5 and combustion heater fin formula dissimilar metal heat exchanger, it is characterized in that, the front end of described inner housing and the front end of frame are welded on respectively on the inner side surface and outer side surface of same flange plate, a plurality of axial holes of offering between the inner side surface of described flange plate and the outer side surface are connected with described fluid passage, the rear end of described frame offers the hot fluid floss hole, and the rear end of described inner housing is a closed end.
7. fuel oil according to claim 6 and combustion heater fin formula dissimilar metal heat exchanger, it is characterized in that, comprise the hot fluid discharge pipe that is positioned at described frame outside in addition, the entry end of described hot fluid discharge pipe is connected with described hot fluid floss hole.
8. fuel oil according to claim 6 and combustion heater fin formula dissimilar metal heat exchanger, it is characterized in that the described inner housing of close described flange plate radially is provided with the tail gas discharging pipe that connects inner housing inside and frame outside on the anterior and corresponding frame front portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102074650A CN102278244A (en) | 2011-07-22 | 2011-07-22 | Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102074650A CN102278244A (en) | 2011-07-22 | 2011-07-22 | Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278244A true CN102278244A (en) | 2011-12-14 |
Family
ID=45103905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102074650A Pending CN102278244A (en) | 2011-07-22 | 2011-07-22 | Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278244A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642692A (en) * | 2016-07-28 | 2017-05-10 | 艾欧史密斯(中国)热水器有限公司 | Condensation gas water heater, condensation heat exchanger and heat exchanging plate |
| CN110410242A (en) * | 2019-07-25 | 2019-11-05 | 吉林省丰奥汽车零部件有限公司 | A kind of fuel Heating pipe of high efficient heat exchanging |
| CN112594931A (en) * | 2020-11-13 | 2021-04-02 | 北京北机机电工业有限责任公司 | Metal heat exchanger for fuel oil and gas heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4368777A (en) * | 1980-02-18 | 1983-01-18 | Centro Ricerche Fiat S.P.A. | Gas-liquid heat exchanger |
| JPH11159978A (en) * | 1997-11-29 | 1999-06-15 | Toyo Radiator Co Ltd | Heat exchanger for heater |
| JPH11183062A (en) * | 1997-12-18 | 1999-07-06 | Maruyasu Ind Co Ltd | Double piped heat exchanger |
| CN2771785Y (en) * | 2005-02-07 | 2006-04-12 | 邹昌校 | Sleeving-pipe type heat exchanger |
| CN101738110A (en) * | 2010-01-21 | 2010-06-16 | 上海交通大学 | Double-pipe heat exchanger with deflection fins deviating and spreading at both sides |
-
2011
- 2011-07-22 CN CN2011102074650A patent/CN102278244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4368777A (en) * | 1980-02-18 | 1983-01-18 | Centro Ricerche Fiat S.P.A. | Gas-liquid heat exchanger |
| JPH11159978A (en) * | 1997-11-29 | 1999-06-15 | Toyo Radiator Co Ltd | Heat exchanger for heater |
| JPH11183062A (en) * | 1997-12-18 | 1999-07-06 | Maruyasu Ind Co Ltd | Double piped heat exchanger |
| CN2771785Y (en) * | 2005-02-07 | 2006-04-12 | 邹昌校 | Sleeving-pipe type heat exchanger |
| CN101738110A (en) * | 2010-01-21 | 2010-06-16 | 上海交通大学 | Double-pipe heat exchanger with deflection fins deviating and spreading at both sides |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642692A (en) * | 2016-07-28 | 2017-05-10 | 艾欧史密斯(中国)热水器有限公司 | Condensation gas water heater, condensation heat exchanger and heat exchanging plate |
| CN106642692B (en) * | 2016-07-28 | 2022-08-19 | 艾欧史密斯(中国)热水器有限公司 | Condensation gas water heater and condensation heat exchanger |
| CN110410242A (en) * | 2019-07-25 | 2019-11-05 | 吉林省丰奥汽车零部件有限公司 | A kind of fuel Heating pipe of high efficient heat exchanging |
| CN112594931A (en) * | 2020-11-13 | 2021-04-02 | 北京北机机电工业有限责任公司 | Metal heat exchanger for fuel oil and gas heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202221145U (en) | Compact type original surface heat exchanger for fuel oil and fuel gas heater | |
| CN101520172A (en) | Energy-saving reclaiming process for residual heat of fume in boiler | |
| CN104634143A (en) | Heat-convertible heat pipe exchanger and working method thereof | |
| CN102278244A (en) | Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater | |
| CN108298097B (en) | Small-scale enhanced heat exchange structure | |
| CN208862064U (en) | Battery pack structure | |
| CN105422328B (en) | A kind of evaporator for motor exhaust recycling EGR | |
| CN202202996U (en) | Fin type dissimilar metal heat exchanger for fuel oil and fuel gas heater | |
| CN201340207Y (en) | Radiator for heavy-duty automobile | |
| CN102721055A (en) | Integrated afterheat hot water burner assembly | |
| CN102287906B (en) | Compact primary surface heat exchanger for fuel oil and fuel gas heater | |
| CN204829845U (en) | Energy -saving boiler | |
| CN201062881Y (en) | Die cavity heat exchanger for gas water heater | |
| CN203756382U (en) | Fuel heating device | |
| CN210217857U (en) | Oil cooler of domestic automobile | |
| CN2317241Y (en) | Heat pipe type asphalt fast heating device | |
| CN202083094U (en) | Water storage type gas water heater | |
| CN202204334U (en) | Gas cooling system for methanol synthesis process | |
| CN203412652U (en) | Automobile heat radiator and automobile | |
| CN2901113Y (en) | Finned tubular type oil tube electric heater | |
| CN201715716U (en) | Connection structure of heat collection sheet and heat exchange tube of gas water heater | |
| CN209910462U (en) | Fin type steam heater | |
| CN101113845A (en) | Pressure-bearing type double-circulating directly inserting type vacuum tube solar water-heater | |
| CN217114374U (en) | Fuel cell DCDC cooling system based on phase change cooling and heat pipe cooling | |
| CN204253208U (en) | Heat-pipe internal-combustion engine waste gas afterheat recovery unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |