CN101979116B - Micro laminated plate type liquid fuel evaporator with micro boss array structure - Google Patents
Micro laminated plate type liquid fuel evaporator with micro boss array structure Download PDFInfo
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- CN101979116B CN101979116B CN201010295362XA CN201010295362A CN101979116B CN 101979116 B CN101979116 B CN 101979116B CN 201010295362X A CN201010295362X A CN 201010295362XA CN 201010295362 A CN201010295362 A CN 201010295362A CN 101979116 B CN101979116 B CN 101979116B
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- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 83
- 230000008020 evaporation Effects 0.000 claims abstract description 82
- 239000012530 fluid Substances 0.000 claims description 39
- 239000000758 substrate Substances 0.000 claims description 29
- 238000004821 distillation Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000002309 gasification Methods 0.000 abstract description 2
- 239000003502 gasoline Substances 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
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- 238000002407 reforming Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 239000010439 graphite Substances 0.000 description 1
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- 230000008676 import Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
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- Hydrogen, Water And Hydrids (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a micro laminated plate type liquid fuel evaporator with a micro boss array structure. The evaporator is formed by connecting an upper sealing connector, a main body part consisting of up and down laminated first and second evaporation units, and a lower sealing connector. As micro boss array structure is introduced to the heat-conducting part of the micro evaporator, the specific volume of the evaporator is increased and the coefficient of the transmission by convection of the micro evaporator is improved; and thus, the heat conducting efficiency of the evaporator is improved. With the increase in the number of integrated evaporation cavity units and heating plates and reasonable lamination, the micro evaporator is enlarged and therefore can be used for evaporating large-volume liquid fuel. The evaporator can be widely used on occasions when the pre-evaporation of the fuel liquid is needed, and is particularly suitable for pre-heating, gasification and overheat of the liquid fuel such as methanol, ethanol and gasoline in an on-site hydrogen production system. The evaporator can be used in strong heat-absorbing and heat-releasing coupling reaction systems and also can be used for the evaporation of large-volume liquid fuel after being enlarged.
Description
Technical field
The present invention relates to the liquid fuel evaporimeter, especially relate to the folded flat liquid fuel evaporimeter of a kind of microbedding with the micro-boss array structure.
Technical background
So-called evaporimeter; It is the two-phase mixture that a kind of two-phase mixture single-phase liquid or liquids and gases is converted into single phase gas or gas and liquid; Perhaps, industries such as chemical industry, food, pharmacy have been widely used in through vaporizer being fallen the process device that partial solvent reaches the concentrated solution purpose.
Development along with industrial technology; People to equipment require increasingly high; Current equipment manufactures and designs except needs satisfy the specification requirement and safety criterion of industry manufacturing; More need have additional conditions such as compactness, efficient, energy-conservation, environmental protection concurrently, this just requires heat output that evaporimeter improves unit volume as much as possible to satisfy the demand of evaporation.According to existing document, along with reducing of heat transmission equipment unit yardstick, convection transfer rate improves constantly, and makes the heat transfer of equipment obtain constantly strengthening that (when reaching the mm level when following, convection transfer rate can reach 17200W/m
2K is much higher than the coefficient of heat transfer (2500W/m of legacy equipment
2K)).Wherein the heat transfer property of micro-boss array structure is particularly splendid, this be because: on the one hand, because the existence of micro-boss array, fluid is comparatively unordered flowing of evaporation cavity, mixes aggravation between element of fluid, has increased convection heat transfer' heat-transfer by convection; On the other hand, absorb more heat, obtain better heating because steam more is prone to be captured in the slight void between two micro-boss.Therefore, in the evaporation structure design, introduce the convection transfer rate that the micro-boss array structure will increase evaporimeter to a great extent, can effectively improve the heat transfer property of evaporimeter, thereby make evaporimeter compact more, efficient and practical.But the design focal point of current evaporimeter be with through reducing evaporimeter heat exchanger tube (passage) thus structure dimension come the heat transfer of enhanced water evaporation device to improve the overall performance of evaporimeter with the version of improving evaporimeter; Though related to MCA in the existing structure, still not mentioned micro-boss array structure.
On the other hand, along with manufacturing development, equipment such as machinery, chemical industry develop towards the direction of microminiaturization.In chemical industry, chemistry and pharmaceuticals industry, the researcher designs and has made different microfabricated chemical reactor devices, satisfies the needs of different field such as military affairs, aviation.Alcohol reforming hydrogen production system aspects at the scene for example, the researchers of various countries have designed and have made the alcohol reforming hydrogen production microreactor of different structure.Because the problem of catalyst, the reaction of carrying out in these microreactors must be gas-phase reaction (reactant and product are gas), therefore, need carry out evaporation process to liquid reactants (like methyl alcohol).Simultaneously, the required import fuel flow rate of micro-evaporator is less, and this just provides actual application background for the design of miniature low discharge evaporimeter and manufacturing.
Chinese invention patent (application number 200510130765.8) once disclosed a kind of catalytic combustion evaporator.It is welded by main part and several end socket.Main part is a plate fin structure, is made up of 10 combustion chambers and 9 evaporation cavities.This catalytic combustion evaporator produces big calorimetric through the fuel that burning flows in the combustion chamber, and the heat major part passes to vaporization chamber through heat-conducting plate liquid fuel is evaporated, can be with fuel superheater to 200 ℃-300 ℃.This evaporimeter is applicable to the fuel cell hydrogen generating system, can be widely used in the coupled reaction system of strong heat release and heat absorption.But this evaporimeter yardstick is bigger, can not be applied to the fuel vaporization of the chemical reactor of tiny flow quantity, and simultaneously, its heat transfer structure adopts plate fin structure, belongs to macro-scale, heat transfer property than microstructure a little less than, can further improve.
Chinese invention patent (application number 200480026585.9) once disclosed a kind of fuel vaporizer that is used for the reforming type fuel cell system.It comprises fuel/water flow path alternately, by the gas passage equipment heat transfer enhancement in contiguous fuel/flow channel only, and evaporation and the overheated mixture that needs the fuel/water of processing.This evaporimeter can be avoided big thermal stress, thereby improves the life-span of evaporimeter.But the heat transfer structure yardstick of this evaporimeter also is a macro-scale, can promote performance through introducing fine structure.
Summary of the invention
The object of the present invention is to provide the folded flat liquid fuel evaporimeter of a kind of microbedding with the micro-boss array structure.
The technical scheme that the present invention adopts is:
From top to bottom successively by on the joint that is tightly connected, main part and lower seal jointing are formed by connecting; Wherein:
1) joint is tightly connected on: comprise rectangular configuration on be tightly connected plate and upper pipeline joint; The upper pipeline joint with on the be tightly connected fluid inlet apertures of plate upper surface link to each other;
2) lower seal jointing: comprise the lower seal connecting plate and the lower pipeline joint of rectangular configuration, the lower pipeline joint links to each other with the fluid issuing hole of lower seal connecting plate lower surface;
3) main part: be the cuboid structure, be formed by stacking up and down flush distillation unit and double evaporation-cooling unit; The flush distillation unit from top to bottom successively the first integrated evaporation cavity, in be equipped with resistance heated rod first heated plate, the second integrated evaporation cavity and in the resistance heated rod is housed second heated plate be formed by stacking; The double evaporation-cooling unit from top to bottom the 3rd integrated evaporation cavity with in resistance heated rod is housed the 3rd heated plate be formed by stacking; Insert the resistance heated rod respectively in three heated plate long side faces; The runner hole that one side of the first integrated evaporation cavity, first heated plate and the second integrated evaporation cavity has and on the be tightly connected fluid inlet apertures coaxial arrangement of pulling and communicating; One side runner hole coaxial arrangement of the runner hole of the first integrated evaporation cavity, first heated plate and the second integrated evaporation cavity opposite side and second heated plate, one side, the 3rd integrated evaporation cavity also communicates, and the runner hole of the opposite side runner hole of the 3rd integrated evaporation cavity, the 3rd heated plate one side is connected the fluid issuing hole coaxial arrangement of pulling and communicates with lower seal.
Described three integrated evaporation cavity structures are identical, formed by assistant flat-plate and another piece superimposed substrate in the middle of shape, measure-alike cover plate, middle assistant flat-plate, substrate, another piece from top to bottom; Cover plate two diagonally opposing corners have and are used for the runner hole that fluid is come in and gone out, and have the parallelogram hole in the middle of two middle accessory plates; Two diagonally opposing corners of two substrate upper surfaces have the runner hole that fluid is come in and gone out; Near on a be tightly connected side of plate inlet hole be provided with row's rectangular boss that same structure is equally spaced; Away from a be tightly connected side of plate inlet hole be provided with the stagger arrangement round boss array that arrange, that be equally spaced of same structure, the parallelogram hole of accessory plate in the middle of rectangular boss and round boss array are positioned at.
Described first heated plate is consistent with the 3rd heated plate structure, and two ends have the runner hole, second heated plate away from a be tightly connected side of plate inlet hole have a runner hole.
The beneficial effect that the present invention has is:
1) this micro-evaporator is introduced the micro-boss array structure in the heat transfer part, has increased the specific volume of evaporimeter, has improved the convective heat-transfer coefficient of micro-evaporator, thereby has improved the heat transfer efficiency of this evaporimeter.
2) through improving the physical dimension of optimizing evaporimeter, this micro-evaporator compact conformation, small and exquisite can be used for the occasion that tiny flow quantity liquid evaporates.
3) this micro-evaporator increases integrated evaporation cavity unit and heated plate quantity and gets final product enlargement of scale through after reasonably range upon range of, thereby can use the occasion of big flow liquid fuel evaporation.
The present invention can be widely used for carrying out fuel liquid the occasion of prevapourising, is particularly suitable for preheating, the gasification and overheated of liquid fuel such as methyl alcohol, ethanol, gasoline in the on-the-spot hydrogen generating system of tiny flow quantity; The coupled reaction system that can be used for strong heat absorption and heat release; Through being used for the occasion of big flow fuel vaporization after the scale expansion.
Description of drawings:
Fig. 1 is an overall structure sketch map of the present invention.
Fig. 2 is the structural representation of substrate of the present invention.
Fig. 3 is the structure cutaway view of integrated evaporation cavity.
Fig. 4 is a base plan vertical view of the present invention.
Fig. 5 is an accessory plate structural representation in the middle of the present invention.
Fig. 6 is the present invention first, the 3rd heated plate structural representation.
Fig. 7 is the present invention's second heated plate structural representation.
Fig. 8 is the upper and lower plate structure sketch map that is tightly connected of the present invention.
Fig. 9 is a covering plate structure sketch map of the present invention.
Figure 10 is a fluid flow path sketch of the present invention.
Among the figure: 1, main part, 2, on the joint that is tightly connected, 3, the lower seal jointing, 4, the resistance heated rod, 5, the flush distillation unit; 6, double evaporation-cooling unit, 7, integrated evaporation cavity, 8, first heated plate, 9, second heated plate, 10, substrate; 11, middle accessory plate, 12, cover plate, 13, on the plate that is tightly connected, 14, the upper pipeline joint; 15, micro-boss array structure, 16, the lower seal connecting plate, 17, the lower pipeline joint, the 18, the 3rd heated plate
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Like Fig. 1, shown in 10, from top to bottom successively by on the joint 2 that is tightly connected, main part 1 and lower seal jointing 3 are formed by connecting; Wherein:
1) joint 2 is tightly connected on: comprise rectangular configuration on be tightly connected plate 13 and upper pipeline joint 14; Upper pipeline joint 14 with on the be tightly connected fluid inlet apertures of plate 13 upper surfaces link to each other;
2) the lower seal jointing 3: comprise the lower seal connecting plate 16 and lower pipeline joint 17 of rectangular configuration, lower pipeline joint 17 links to each other with the fluid issuing hole of lower seal connecting plate 16 lower surfaces;
3) main part 1: be the cuboid structure, be formed by stacking up and down flush distillation unit 5 and double evaporation-cooling unit 6; Flush distillation unit 5 from top to bottom successively the first integrated evaporation cavity, in be equipped with resistance heated rod first heated plate, 8, the second integrated evaporation cavity and in resistance heated rod 4 is housed second heated plate 9 be formed by stacking; The double evaporation-cooling unit from top to bottom the 3rd integrated evaporation cavity with in resistance heated rod 4 is housed the 3rd heated plate 18 be formed by stacking; Insert resistance heated rod 4 in three heated plate long side faces respectively; The runner hole that one side of the first integrated evaporation cavity, first heated plate 8 and the second integrated evaporation cavity has and on be tightly connected and pull 13 fluid inlet apertures coaxial arrangement and communicate; One side runner hole coaxial arrangement of the runner hole of the first integrated evaporation cavity, first heated plate 8 and the second integrated evaporation cavity opposite side and second heated plate, 9 one sides, the 3rd integrated evaporation cavity also communicates, and the runner hole of the opposite side runner hole of the 3rd integrated evaporation cavity, the 3rd heated plate 18 1 sides is connected with lower seal pulls 16 fluid issuing hole coaxial arrangement and communicate.
As shown in Figure 3, described three integrated evaporation cavity 7 structures are identical, under last, are formed by stacking by shape, measure-alike cover plate 12, middle assistant flat-plate 11, substrate 10, the middle assistant flat-plate 11 of another piece and another piece substrate 10; As shown in Figure 9,12 liang of diagonally opposing corners of cover plate have and are used for runner hole g, the h that fluid is come in and gone out, and are as shown in Figure 5, have the parallelogram hole in the middle of two middle accessory plates; As shown in Figure 4; Two diagonally opposing corners of two substrate upper surfaces have runner hole a, the b that fluid is come in and gone out; Near on a be tightly connected side of plate inlet hole be provided with row's rectangular boss that same structure is equally spaced; Away from a be tightly connected side of plate inlet hole be provided with the stagger arrangement round boss array 18 that arrange, that be equally spaced of same structure, the parallelogram hole of accessory plate in the middle of rectangular boss and round boss array 18 are positioned at.
As shown in Figure 6, structure is consistent on described first heated plate 7 and the 3rd heated plate 18, and two ends have two runner holes; As shown in Figure 7, second heated plate 9 away from a be tightly connected side of plate 13 inlet holes have a runner hole.
Specific embodiment of the present invention is following:
Comprise main part 1, on be tightly connected joint 2 and lower seal jointing 3, resistance heated rod 4, sealed heat insulating material and some fastening bolts (not drawing among the figure).Main part 1 integral body is rectangular structure, is divided into flush distillation unit 5 and double evaporation-cooling unit 6.Flush distillation unit 5 is made up of two shapes, measure-alike integrated evaporation cavity 7, first heated plate 8 and second heated plate 9.Each integrated evaporation cavity 7 is by two block-shaped, measure-alike substrates 10, and two block-shaped, measure-alike middle accessory plate 11 and cover plates 12 cascade, and five dull and stereotyped contour structures are the rectangular plate shape structure, and length and width is all consistent.Yardstick on substrate 10 short transverses is 2mm.Its structural representation is as shown in Figure 2, and two diagonally opposing corners of upper surface are processed with and are used for the through hole that fluid is come in and gone out, center-right position be processed with equal altitudes, equal diameter and etc. OC micro-boss array structure 15, arrangement mode is a rectangular array.Its single micro-boss is a cylindrical structure, and diameter is 0.8mm, highly is 1mm.On the directions X with the Y direction on the micro-boss center distance be the twice of micro-boss diameter, be 1.6mm, but the micro-boss number on the Y direction is Duoed 3 than the micro-boss number on the directions X.Position from 1 micro-boss diameter of micro-boss array distance on directions X, left side, upper surface is processed with the identical rectangle short block of micro-boss quantity that distributes alternately in the Y direction, and width is slightly larger than the micro-boss diameter, and spacing is identical with the micro-boss center distance.Middle accessory plate 11 structural representations are as shown in Figure 5, are 1.2mm highly, are slightly larger than micro-boss array height (1mm); The centre be processed with thin plate with high parallelogram hole; Can be divided into three parts, left and right two ends are right angled triangle fluid distribution cavity, and mid portion is a rectangular enclosure.The length and width of rectangular enclosure is respectively more than micro-boss diameter of substrate 10 upper surface projection sections.As shown in Figure 9, cover plate 12 is processed with on the position corresponding with substrate 10 and is used for the through hole that fluid is come in and gone out accordingly, is 1mm highly, is used to seal integrated evaporation cavity 7.Accessory plate 11 and a substrate 10 are through forming semi-open evaporation cavity in the middle of one after the diffusion welding (DW).Two semi-open evaporation cavities and cover plate 12 are used for liquid evaporation and overheated through forming integrated evaporation cavity 7 after the diffusion welding (DW).The length and width of two heated plates is identical with integrated evaporation cavity 7, and every heated plate side is processed with two blind holes that can be used for placing resistance heated rod 4 that are symmetrically distributed along long side face center line.The structural representation of first heated plate 8 is as shown in Figure 6, and two diagonal angles are processed with and integrated evaporation cavity 7 corresponding through hole c, d.9 of second heated plates are processed with corresponding through hole e at one jiao, and are as shown in Figure 7.Two integrated evaporation cavities 7 and first heated plate, 8, the second heated plates 9 distribute alternately, and form flush distillation unit 5.Double evaporation-cooling unit 6 is cascaded by integrated evaporation cavity 7 and the 3rd heated plate 18, and contour structures is consistent with flush distillation unit 5.On be tightly connected joint 2 by on be tightly connected plate 13 form with upper pipeline joint 14.On the plate 13 that is tightly connected as shown in Figure 8, integral body is slab construction, length and width is compared big slightly with main part, be furnished with six screwed holes that can be used for fit sealing all around.One jiao on the last plate 13 that is tightly connected is processed with the fluid provider f that can be used for connecting line joint 14, corresponding with the through hole at 10 liang of angles of substrate.Lower seal jointing 3 with on joint 2 structures that are tightly connected consistent, form by lower seal connecting plate 16 and lower pipeline joint 17.In order to reduce external heat radiation, improve the overall performance of micro-evaporator, there is the rectangular channel of an indent upper surface also ream, and groove depth is the half the of plate hight.Rectangular channel deflection right side, away from the distance in about 1 aperture of screwed hole, for not with plate on screwed hole interfere.The method of this micro-evaporator assembling adopts diffusion welding (DW) and the fastening method of bolt seals.Between integrated evaporation cavity 7 and first heated plate, 8, the second heated plates 9, integrated evaporation cavity 7 seals with the upper and lower mode that adopts gasket seal to add bolted between the joint 2,3 that is tightly connected.Folded back micro-evaporator structure from top to bottom on be tightly connected joint 2, flush distillation unit 5, double evaporation-cooling unit 6 and lower seal jointing 3.
As shown in Figure 1, the resistance heated rod hole exits of the resistance heated rod hole exits of the 3rd heated plate 18 of assembling back first heated plate 8 and second heated plate 9 is in the opposite direction.
The upper pipeline joint 14 that described micro-evaporator is connected with exterior line at the entrance and exit place is the bite type directintermination pipe joint through using always; Its with on be tightly connected plate 13, lower seal connecting plate 16 is connected to and is threaded, and is that cutting ferrule is connected with exterior line.Because evaporimeter is in order to evaporate and superheated liquid fuel, need fuel not to be heated to too high temperature, therefore; Internal temperature generally all lower (usually below 300 ℃) in the running; So, but threaded connection place coated with high temperature fluid sealant further improves the sealing at pipe joint place.Stainless steel material (as 304) commonly used is used on the external connecting pipe road, and external diameter is about 4mm, vertically distributes.Flow direction at inlet, exit fluid flow direction and integrated evaporation cavity 7 inner fluids is perpendicular, makes inlet liquid that certain gravitional force arranged, and avoids the evaporation wild effect that produces because of fluid countercurrent current.
Be tightly connected on described micro-evaporator plate 13, lower seal connecting plate 16, middle accessory plate 11, cover plate 12, first heated plate, 8, the second heated plates 9, the 3rd heated plate 18 all adopts conventional machining process manufacturing; Substrate 10 processes the upper surface bossing through the little thixotroping processing mode of semisolid earlier, and manufacturing forms through the conventional mechanical processing mode again, and concrete manufacture process is as follows:
Mfg. moulding die at first.According to the structure of the substrate that is designed 10, make corresponding mould (comprising upper die and lower die).Mold materials is mould steel H13, and mode of heating adopts the resistance heated rod, and processing method is machine cut and spark machined.Because the present invention has only a kind of substrate of structure, gets final product so only need manufacture and design a mold.Select the workpiece size be used to suppress again.In order to be easy to be shaped, workpiece size should be slightly larger than and be boss array structure size.Then according to the size of workpiece, obtain suitable heating scheme and patrix motion mode through experiment, being shaped produces substrate upper surface microprotrusion part.At last, obtain substrate 10 through machining.
Described micro-evaporator connects through bolt makes first heated plate, 8, the second heated plates 9 be fixed together with substrate 10.The resistance heated rod 4 of heat supply through settling in first heated plate, 8, the second heated plates 9, the 3rd heated plate 18.In order to make the heat transmission even, resistance heated rod position is optimized, and supplied to settle the blind hole of resistance heated rod to be distributed in heteropleural during with range upon range of assembling, be fixed on the micro-evaporator through welding.Between first heated plate, 8, the second heated plates 9, the 3rd heated plate 18 and integrated evaporation cavity 7, be coated with heat-conducting glue, purpose is in order to reduce thermal resistance, to improve the heat transfer efficiency of evaporimeter.
Be tightly connected on the described micro-evaporator and all adopt graphite sealing material to seal between joint 2, lower seal jointing 3, integrated evaporation cavity 7 and first heated plate 8, second heated plate 9 and the 3rd heated plate 18.In order to reduce heat radiation, improve the micro-evaporator hot property, the upper and lower plate outside that is tightly connected is furnished with one deck asbestos material.
The material of described micro-evaporator substrate 10 is the semi-solid aluminium alloy material, in order to process with the little thixotropic forming technology of semisolid.On be tightly connected plate 13, lower seal connecting plate 16 select the relatively low stainless steel material commonly used (as 304) of thermal conductivity for use.The material of all the other each several parts adopts aluminum alloy materials (like A356), and price is low, and pyroconductivity is high, is easy to processing.
Operation principle of the present invention is following:
Figure 10 is the fluid flow path sketch of this micro-evaporator.Behind resistance heated rod energising preheating micro-evaporator certain hour; After needing the working medium fluid (like the methanol-water mixed solution in the hydrogen from methyl alcohol) of evaporation to rely on driving source such as peristaltic pump to flow through pipe joint 14 from an end of micro-evaporator, through on the be tightly connected f mouth of the plate 13 that is tightly connected of joint 2 get in the flush distillation unit 5.Be divided into two-way behind the semi-open evaporation cavity of working medium fluid through integrated evaporation cavity 7 in the g mouth entering flush distillation unit 5 of cover plate 12; The a mouth of substrate 10 of leading up to flows into the semi-open evaporation cavity of below; The left end of the semi-open evaporation cavity of one route flows to right-hand member, and flows into the semi-open evaporation cavity of below through the b mouth of substrate 10.Then; The working medium fluid also is divided into two-way; D mouth and the g mouth of cover plate 12 of a mouth, first heated plate 8 of substrate 10 of leading up to flows in the semi-open evaporation cavity of the integrated evaporation cavity 7 in below; Another road flows to the place, diagonal angle of semi-open evaporation cavity, flows in the semi-open evaporation cavity of the integrated evaporation cavity 7 in below through the b mouth of substrate, the c mouth of heated plate 8 and the h mouth of cover plate 12.Fluid in this integrated evaporation cavity 7 flow with it above integrated evaporation cavity 7 consistent, the final semi-open evaporation cavity of integrated evaporation cavity 7 in the h mouth inflow double evaporation-cooling unit 6 of the e mouth through heated plate 9, cover plate 12.The integrated evaporation cavity 7 of the type of flow of fluid in this integrated evaporation cavity 7 above also with it is consistent, and the f mouth of the plate 13 that finally is tightly connected in the e mouth of a mouth through substrate 10, heated plate 9 and the lower seal jointing 3 flows out micro-evaporator.
After the working medium fluid flowed into flush distillation unit 5, through absorbing the heat that the resistance heated rod provides in first heated plate, 8, the second heated plates 9, major part was evaporated to gas.Major part is evaporated completely fluid again after flowing into double evaporation-cooling unit 6, continues evaporation through absorbing the heat that second heated plate 9 provides in the double evaporation-cooling unit 6, finally produces overheated single-phase steam.As shown in Figure 5; In order to make the working medium fluid evaporator fully and be superheated to required temperature; Micro-evaporator is provided with flush distillation unit 5 and double evaporation-cooling unit 6, and flush distillation unit 5 contains two integrated evaporation cavities, and working medium fluid portion within it is the parallelly connected type of flow; Can increase the flow of evaporation like this, improve the qualified steam productive rate of micro-evaporator.
Claims (2)
1. one kind with the folded flat liquid fuel evaporimeter of the microbedding of micro-boss array structure, it is characterized in that: from top to bottom successively by on the joint (2) that is tightly connected, main part (1) and lower seal jointing (3) are formed by connecting; Wherein:
1) joint (2) is tightly connected on: comprise rectangular configuration on be tightly connected plate (13) and upper pipeline joint (14); Upper pipeline joint (14) with on the be tightly connected fluid inlet apertures of plate (13) upper surface link to each other;
2) lower seal jointing (3): comprise the lower seal connecting plate (16) and the lower pipeline joint (17) of rectangular configuration, lower pipeline joint (17) links to each other with the fluid issuing hole of lower seal connecting plate (16) lower surface;
3) main part (1): be the cuboid structure, be formed by stacking up and down flush distillation unit (5) and double evaporation-cooling unit (6); Flush distillation unit (5) from top to bottom successively the first integrated evaporation cavity, in be equipped with resistance heated rod first heated plate (8), the second integrated evaporation cavity and in the resistance heated rod is housed second heated plate (9) be formed by stacking; The double evaporation-cooling unit from top to bottom the 3rd integrated evaporation cavity with in resistance heated rod is housed the 3rd heated plate (18) be formed by stacking; Insert the resistance heated rod respectively in three heated plate long side faces; The runner hole that one side of the first integrated evaporation cavity, first heated plate (8) and the second integrated evaporation cavity has and on the be tightly connected fluid inlet apertures coaxial arrangement of pulling and communicating; One side runner hole coaxial arrangement of the runner hole of the first integrated evaporation cavity, first heated plate (8) and the second integrated evaporation cavity opposite side and second heated plate (9) one sides, the 3rd integrated evaporation cavity also communicates, and the runner hole of the opposite side runner hole of the 3rd integrated evaporation cavity, the 3rd heated plate (18) one sides is connected the fluid issuing hole coaxial arrangement of pulling (16) and communicates with lower seal;
Described three integrated evaporation cavity structures are identical, formed by assistant flat-plate and another piece superimposed substrate in the middle of shape, measure-alike cover plate (12), middle assistant flat-plate, substrate, another piece from top to bottom; Cover plate (12) two diagonally opposing corners have and are used for the runner hole that fluid is come in and gone out, and have the parallelogram hole in the middle of two middle accessory plates; Two diagonally opposing corners of two substrate upper surfaces have the runner hole that fluid is come in and gone out; Near on a be tightly connected side of plate inlet hole be provided with row's rectangular boss that same structure is equally spaced; Away from a be tightly connected side of plate inlet hole be provided with the stagger arrangement round boss array that arrange, that be equally spaced (18) of same structure, the parallelogram hole of accessory plate in the middle of rectangular boss and round boss array (18) are positioned at.
2. the folded flat liquid fuel evaporimeter of a kind of microbedding according to claim 1 with the micro-boss array structure; It is characterized in that: described first heated plate (8) is consistent with the 3rd heated plate (18) structure; Two ends have the runner hole, second heated plate (9) away from a be tightly connected side of plate (13) inlet hole have a runner hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010295362XA CN101979116B (en) | 2010-09-27 | 2010-09-27 | Micro laminated plate type liquid fuel evaporator with micro boss array structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010295362XA CN101979116B (en) | 2010-09-27 | 2010-09-27 | Micro laminated plate type liquid fuel evaporator with micro boss array structure |
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| Publication Number | Publication Date |
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| CN101979116A CN101979116A (en) | 2011-02-23 |
| CN101979116B true CN101979116B (en) | 2012-02-22 |
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| CN201010295362XA Expired - Fee Related CN101979116B (en) | 2010-09-27 | 2010-09-27 | Micro laminated plate type liquid fuel evaporator with micro boss array structure |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923656B (en) * | 2012-11-12 | 2014-09-03 | 浙江大学 | Laminating type micro-convex-table array type micro-reactor for steam reforming of methanol |
| WO2019232290A1 (en) | 2018-05-31 | 2019-12-05 | Dow Global Technologies Llc | Devolatilizer design |
| CN112312983B (en) * | 2018-05-31 | 2023-02-28 | 陶氏环球技术有限责任公司 | Distributor and process for devolatilization of polymer solutions |
| JP7489327B2 (en) | 2018-05-31 | 2024-05-23 | ダウ グローバル テクノロジーズ エルエルシー | Method and system for polymer production - Patents.com |
| CN108759070A (en) * | 2018-06-14 | 2018-11-06 | 中氢新能技术有限公司 | A kind of heating device and preparing hydrogen by reforming methanol fuel cell system |
| CN110803679B (en) * | 2019-12-09 | 2021-04-16 | 浙江大学 | Methanol reforming hydrogen production reactor with flow velocity distribution uniformity |
| CN111870978B (en) * | 2020-08-07 | 2021-08-24 | 清华大学 | Submerged combustion evaporator |
| CN113198558A (en) * | 2021-04-30 | 2021-08-03 | 深圳市锦瑞生物科技有限公司 | Preheating device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242016A (en) * | 1992-04-02 | 1993-09-07 | Nartron Corporation | Laminated plate header for a refrigeration system and method for making the same |
| JP3129670B2 (en) * | 1997-02-28 | 2001-01-31 | 三菱電機株式会社 | Fuel reformer |
| DE19944186A1 (en) * | 1999-09-15 | 2001-03-29 | Xcellsis Gmbh | Device for heating and / or converting at least one medium |
| US7063047B2 (en) * | 2003-09-16 | 2006-06-20 | Modine Manufacturing Company | Fuel vaporizer for a reformer type fuel cell system |
| CN100535572C (en) * | 2005-12-28 | 2009-09-02 | 中国科学院大连化学物理研究所 | Catalytic combustion evaporator |
| KR100981521B1 (en) * | 2008-09-05 | 2010-09-10 | 삼성에스디아이 주식회사 | Evaporator and fuel reformer having the same |
| CN201832432U (en) * | 2010-09-27 | 2011-05-18 | 浙江大学 | Micro layered flat liquid fuel evaporator with micro boss array structure |
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2010
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