CN108020110A - There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system - Google Patents
There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system Download PDFInfo
- Publication number
- CN108020110A CN108020110A CN201610930841.1A CN201610930841A CN108020110A CN 108020110 A CN108020110 A CN 108020110A CN 201610930841 A CN201610930841 A CN 201610930841A CN 108020110 A CN108020110 A CN 108020110A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exchanger tube
- microflute
- heat
- group
- 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
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system the invention discloses a kind of, evaporated outside for improving function of mechanical steam recompression system heat exchange tube, the ability of boiling heat transfer, be machined into outside the heat exchange tube for need enhanced heat exchange or other processing methods process many microflute groups by certain regular array.Two effects are waved in the outer microflute mass-sending of the pipe：First, cloth liquid, liquid is sprayed onto outside heat exchange tube by way of spraying or dripping leaching, and pipe outer wall face is there are tiny microflute, and by the surface tension of liquid, liquid more can uniformly be unfolded, effective heat exchange area increase；Second, enhancing exchange capability of heat, research shows that micro slot group composite phase change heat transfer mechanism is evaporated there are high intensity and nucleate boiling collective effect can largely improve exchange capability of heat.
Description
Technical field
The present invention relates to a kind of heat exchanger tube for having and managing outer conduit, more particularly to one kind to be used for function of mechanical steam recompression system
The outer microflute group's heat exchanger tube of pipe.
Background technology
Evaporation belong to high energy consumption process, due in conventional evaporator indirect steam be condensed after directly discharge, entirely
Evaporation process needs live steam, recirculated water and the electric energy consumed etc. more, particularly with the thing that treating capacity is big, concentration is low
Material, the consumption of steam is quite huge.Relative to traditional multiple-effect evaporation mode, function of mechanical steam recompression system is not required to after stablizing
Extra steam is wanted, by inputting a small amount of adiabatic compression work(, improves the hot grade of steam, so as to efficiently use a large amount of of low-pressure steam
Heat.Same evaporation 1kg water, function of mechanical steam recompression 37.4~57.4kJ of system energy consumption, multiple-effect evaporation technology energy consumption 465.3~
581.7kJ。
Function of mechanical steam recompression system is particularly suitable for food, medicine concentration, a large amount of steam of needs such as purification, sea water desalination
Occasion, its main feature：1. negative pressure low-temperature evaporation (50~90 DEG C), prevents that material (protein, drug ingredient) is high-temperature denatured；
2. the discharge of waste hot steam is almost nil, specific energy consumption is relatively low, and evaporation is gentle；3. a small amount of steam or electric energy is only needed to open
It is dynamic, steam, good energy-conserving effect are no longer needed after startup；4. corollary equipment is less, space is small, and simple structure is stable.
Influence the factor of function of mechanical steam recompression system more and complexity, domestic and foreign scholars carried out this substantial amounts of research,
Mainly the factors such as sprinkle density, heat flow density, evaporating temperature, heat transfer temperature difference, heat transfer tube material and its geometry are investigated
Influence.
The content of the invention
(1) technical problems to be solved
In order to improve the uniformity and the outer enhanced water evaporation of pipe, boiling that liquid film is distributed outside function of mechanical steam recompression system heat exchange tube
The ability of heat transfer is risen, the present invention provides a kind of heat exchanger tube with the outer microflute group of pipe for function of mechanical steam recompression system.
(2) technical solution
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system, the outer surface of the heat exchanger tube is formed
The microflute group of regular arrangement, carries out micro-scale enhanced heat exchange outside heat exchanger tube.
In such scheme, the microflute group includes axial groove group and radial slot group.
In such scheme, the axial groove group includes a plurality of axial slot, and the radial slot group includes a plurality of radial channels,
Axial slot and radial channels cross arrangement, form the distribution of " well " font.
In such scheme, the axial slot and the angle of heat exchanger tube axis are less than 90 °.
In such scheme, the radial channels and the angle of heat exchanger tube axis are more than 0 °.Preferably, the radial channels with
The angle of heat exchanger tube axis is 90 °.
In such scheme, the viscosity, concentration and surface tension of the angle and liquid to be evaporated match.
In such scheme, the width of the micro-channel of the microflute group is in the range of 0.05~2mm, and depth is in 0.05~2mm
In the range of, the spacing of adjacent micro-channel is in the range of 0.05~5mm.
In such scheme, logical high-temperature steam, outside spray solution to be evaporated inside the heat exchanger tube.
(3) beneficial effect
The present invention by opened up outside heat exchanger tube micro-channel carry out micro-scale enhanced heat exchange, microflute group in mechanical vapour again
The purpose of enhanced heat exchange can be not only played in compressibility, moreover it is possible to play the role of uniform cloth liquid.The outer microflute group's groove of heat exchanger tube
Road is acted on by capillary force, can will fall drop outside pipe or liquid beach is equably spread out, realize the mesh of increase effective heat exchange area
's.Meanwhile the micro-scale evaporation of working medium and composite phase-change heat exchange of seething with excitement have high heat transfer intensity in capillary slot, because
And microflute group's heat exchanger tube is applied can significantly improve heat exchange efficiency outside heat exchange tube in function of mechanical steam recompression system.
Brief description of the drawings
Fig. 1 is the function of mechanical steam recompression system schematic of the embodiment of the present invention.
Fig. 2 is the heat exchanger tube schematic diagram that the axial slot of the embodiment of the present invention is 0 ° with the angle of heat exchanger tube axis.
Fig. 3 is the heat exchanger tube schematic diagram that the axial slot of the embodiment of the present invention is 30 ° with the angle of heat exchanger tube axis.
Embodiment
The present invention provides a kind of heat exchanger tube with the outer microflute group of pipe for function of mechanical steam recompression system, the heat exchange
Microflute group of the tube outer surface formed with regular array, carries out micro-scale enhanced heat exchange outside pipe.The microflute of heat exchange pipe external surface
Group includes axial groove group and radial slot group, and axial groove group includes a plurality of axial slot, and radial slot group includes a plurality of radial channels, axis
To conduit and radial channels cross arrangement, the distribution of " well " font is formed.
Heat exchange tube material can be the tubing that steel pipe, copper pipe, aluminum pipe, cast iron pipe etc. have certain capacity of heat transmission.
Microflute shape can be rectangle micro-groove, triangle microflute, trapezoidal microflute, semicircle microflute etc..
The angle of axial slot and heat exchanger tube axis is more than or equal to 0 ° less than 90 °, axial slot and the folder of heat exchanger tube axis
Angle refers to angle of the axial slot of heat exchanger tube axis and axial groove group between the projection of axial plane, according to liquid to be evaporated
Viscosity, concentration and surface tension properties determine that in principle, the viscosity of liquid to be evaporated is smaller, and concentration is smaller, liquid surface
Power is bigger, it is necessary to which liquid to be evaporated residence time outside pipe is longer, thus angle is smaller.
The angle of radial channels and heat exchanger tube axis is more than 0 ° less than or equal to 90 °, radial channels and the folder of heat exchanger tube axis
Angle refers to angle of the radial channels of heat exchanger tube axis and radial slot group between the projection of axial plane, it is preferable that radial slot
The angle in road and heat exchanger tube axis is 90 °.
Microflute group can by milling, Wire EDM, electrolytic etching, high energy beam be etched by light etc. processing method, more
Ripe technique is milling machinery processing method.
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
It is as shown in Figure 1 function of mechanical steam recompression system schematic, the heat exchanger tube of the embodiment of the present invention can be used for the system, institute
Stating function of mechanical steam recompression system includes：Compressor 1, vaporization chamber 2, liquid distributor3, heat exchanger tube 4, circulation tube pump 5, plate heat exchanger
6th, fluid reservoir 7, first circulation pump 8 and second circulation pump 9.
Feed liquid is sent to the top of vaporization chamber 2 through circulating tube pump 5, and vaporization chamber 2 is interior to arrange that having for the present invention manages outer microflute group
Heat exchanger tube 4, feed liquid flows through heat exchanger tube by being flowed from above to below after 3 cloth liquid of liquid distributor under gravity and subnormal ambient in membranaceous
Outer surface, using the steam heat-exchanging in microflute group and heat exchanger tube, the steam that feed liquid evaporates is sucked by compressor 1, through processing
The steam that the circulation of vaporization chamber 2 is returned afterwards as evaporation feed liquid uses.Concentrate concentration is up to standard, is directly collected into fluid reservoir 7, no
Then solution continues to be re-fed into liquid distributor 3 from bottom through circulating pump 8, achievees the purpose that solution concentrates, and is finally completed concentrate discharge.
Embodiment 1
As shown in Fig. 2, 41 outer surface axial slot of heat exchanger tube, 42 angle of the embodiment of the present invention is 0 °, radial channels angle
For 90 °, the width of axial slot 42 is 0.4mm, depth 0.9mm, and a plurality of axial slot 42 is arranged in parallel, two-by-two axial slot
Spacing between 42 is 0.4mm, and the capillary slot 42 of the scope has absolute ethyl alcohol or distilled water the effect of capillary power.Micro-channel
" well " type structure can equably spread liquid film out under capillary force and the collective effect of gravity, and increase liquid film and stop on heat exchanger tube
The time stayed.The present embodiment is more suitable for concentration, the solution that viscosity is larger or impurity is more.
Embodiment 2
As shown in figure 3,43 outer surface axial slot of heat exchanger tube, 44 angle of the present embodiment is 30 °, radial channels angle is
90 °, the width of axial slot 44 is 0.4mm, depth 0.9mm, and a plurality of axial slot 44 is arranged in parallel, two-by-two axial slot 44
Between spacing be 0.4mm, the capillary slot 44 of the scope has absolute ethyl alcohol or distilled water the effect of capillary power.The present embodiment
More suitable for concentration, the solution that viscosity is smaller or impurity is less.This spiral-shaped microflute group energy increase liquid is exchanging heat
The residence time of pipe, and then increase heat-exchange time, improve heat exchange efficiency.
Particular embodiments described above, has carried out the purpose of the present invention, technical solution and beneficial effect further in detail
Describe in detail bright, it should be understood that the foregoing is merely the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the protection of the present invention
Within the scope of.
Claims (9)
1. there is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system, it is characterised in that the heat exchanger tube
Microflute group of the outer surface formed with regular array, carries out micro-scale enhanced heat exchange outside heat exchanger tube.
2. heat exchanger tube as claimed in claim 1, it is characterised in that the microflute group includes axial groove group and radial slot group.
3. heat exchanger tube as claimed in claim 2, it is characterised in that the axial groove group includes a plurality of axial slot, the footpath
Include a plurality of radial channels, axial slot and radial channels cross arrangement to groove group, form the distribution of " well " font.
4. heat exchanger tube as claimed in claim 3, it is characterised in that the axial slot and the angle of heat exchanger tube axis are less than
90°。
5. heat exchanger tube as claimed in claim 3, it is characterised in that the radial channels and the angle of heat exchanger tube axis are more than
0°。
6. heat exchanger tube as claimed in claim 5, it is characterised in that the angle of the radial channels and heat exchanger tube axis is 90 °.
7. heat exchanger tube as described in claim 4 or 5, it is characterised in that the viscosity of the angle and liquid to be evaporated, concentration and
Surface tension matches.
8. heat exchanger tube as claimed in claim 1, it is characterised in that the width of the micro-channel of the microflute group is in 0.05~2mm
In the range of, depth is in the range of 0.05~2mm, and the spacing of adjacent micro-channel is in the range of 0.05~5mm.
9. heat exchanger tube as claimed in claim 1, it is characterised in that logical high-temperature steam inside the heat exchanger tube, outside spray are treated
Evaporate solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930841.1A CN108020110A (en) | 2016-10-31 | 2016-10-31 | There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930841.1A CN108020110A (en) | 2016-10-31 | 2016-10-31 | There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108020110A true CN108020110A (en) | 2018-05-11 |
Family
ID=62069623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610930841.1A Pending CN108020110A (en) | 2016-10-31 | 2016-10-31 | There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108020110A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177095A (en) * | 1996-03-21 | 1998-03-25 | 古河电气工业株式会社 | Heat exchanger tube and method for mfg. same |
| JP2002350079A (en) * | 2001-05-22 | 2002-12-04 | Hitachi Cable Ltd | Falling film heat exchanger tube |
| CN1391080A (en) * | 2001-06-12 | 2003-01-15 | 株式会社神户制钢所 | Heat transferring tube for downward flow fluid membrane distiller |
| CN2798021Y (en) * | 2005-06-02 | 2006-07-19 | 高克联管件(上海)有限公司 | Two surface stengthened falling-film type heat transfer tube |
| CN103047891A (en) * | 2012-12-20 | 2013-04-17 | 苏州新太铜高效管有限公司 | Falling film evaporating pipe with netlike outer surface |
| CN103791755A (en) * | 2014-02-21 | 2014-05-14 | 江苏萃隆精密铜管股份有限公司 | Efficient heat exchange tube for evaporator |
| CN204643889U (en) * | 2015-03-13 | 2015-09-16 | 佛山市德嘉电力环保科技开发有限公司 | A kind of low-temp low-pressure evaporation unit |
| CN205373487U (en) * | 2016-01-28 | 2016-07-06 | 烟台恒辉铜业有限公司 | Rough surface heat exchange tube with netted microflute way |
-
2016
- 2016-10-31 CN CN201610930841.1A patent/CN108020110A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177095A (en) * | 1996-03-21 | 1998-03-25 | 古河电气工业株式会社 | Heat exchanger tube and method for mfg. same |
| JP2002350079A (en) * | 2001-05-22 | 2002-12-04 | Hitachi Cable Ltd | Falling film heat exchanger tube |
| CN1391080A (en) * | 2001-06-12 | 2003-01-15 | 株式会社神户制钢所 | Heat transferring tube for downward flow fluid membrane distiller |
| CN2798021Y (en) * | 2005-06-02 | 2006-07-19 | 高克联管件(上海)有限公司 | Two surface stengthened falling-film type heat transfer tube |
| CN103047891A (en) * | 2012-12-20 | 2013-04-17 | 苏州新太铜高效管有限公司 | Falling film evaporating pipe with netlike outer surface |
| CN103791755A (en) * | 2014-02-21 | 2014-05-14 | 江苏萃隆精密铜管股份有限公司 | Efficient heat exchange tube for evaporator |
| CN204643889U (en) * | 2015-03-13 | 2015-09-16 | 佛山市德嘉电力环保科技开发有限公司 | A kind of low-temp low-pressure evaporation unit |
| CN205373487U (en) * | 2016-01-28 | 2016-07-06 | 烟台恒辉铜业有限公司 | Rough surface heat exchange tube with netted microflute way |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Su et al. | Liquid desiccant regeneration for advanced air conditioning: A comprehensive review on desiccant materials, regenerators, systems and improvement technologies | |
| Liang et al. | Treatment of high-concentration wastewater using double-effect mechanical vapor recompression | |
| Abed et al. | The role of enhancement techniques on heat and mass transfer characteristics of shell and tube spray evaporator: a detailed review | |
| CN101191683B (en) | Jet flow circulated sprinkling falling-film evaporator | |
| KR20110003760A (en) | Evaporative desalination apparatus of sea water using phase changing fluids | |
| CN1896673A (en) | Controllable bi-circulating hot-pipe system | |
| CN107407530A (en) | Efficient desalination | |
| CN108471693A (en) | A kind of vaporation-type cooling system | |
| CN109133236A (en) | A kind of desalination plant and application method of industrial exhaust heat driving spray type refrigerating | |
| CN103613155A (en) | Heat pipe type low temperature two-effect sea water desalting device | |
| Zhang et al. | Experimental study of a novel double-effect evaporation concentration system for high temperature heat pump | |
| Hu et al. | Modeling and simulation of a falling film evaporator for a water vapor heat pump system | |
| CN106277142B (en) | A kind of depth energy saving type desalination plant | |
| CN106964169A (en) | Suitable for high-salt concentrated degree and have crystal separate out MVR crystallizing evaporators and its production technology | |
| CN105439224B (en) | A kind of pressed-steam type REFRIGERATION SYSTEM DRIVEN BY CAPILLARY FORCE seawater desalination system | |
| Wu et al. | Research on an evaporator-condenser-separated mechanical vapor compression system | |
| CN108020110A (en) | There is the heat exchanger tube for managing outer microflute group for function of mechanical steam recompression system | |
| He et al. | An experimental study on effects of oily content on flow pattern transition over horizontal tubes in a sewage source heat pump system | |
| US20150000275A1 (en) | Multi-stage otec power plant | |
| CN104258583A (en) | MVR evaporator and evaporation method | |
| CN204730527U (en) | A kind of recirculation falling film evaporator | |
| RU107960U1 (en) | EVAPORATOR | |
| Gao et al. | An experimental investigation of salt-water separation in the vacuum flashing assisted with heat pipes and solid adsorption | |
| CN103673412A (en) | Double-level falling film evaporator | |
| CN102721307A (en) | Internally partitioned gravity-assisted heat pipe heat transfer mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |
|
| RJ01 | Rejection of invention patent application after publication |