CN106369890A - Spiral-fin condenser and refrigerator with same - Google Patents
Spiral-fin condenser and refrigerator with same Download PDFInfo
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- CN106369890A CN106369890A CN201610941587.5A CN201610941587A CN106369890A CN 106369890 A CN106369890 A CN 106369890A CN 201610941587 A CN201610941587 A CN 201610941587A CN 106369890 A CN106369890 A CN 106369890A
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- Prior art keywords
- heat exchanger
- exchanger tube
- rotation wing
- inner core
- core pipe
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a spiral-fin condenser and a refrigerator with the same. The spiral-fin condenser comprises a heat exchange tube, a spiral fin is arranged on the outer side of the heat exchange tube, an inner core is arranged in the heat exchange tube, and a refrigerant channel is limited between the heat exchange tube and the inner core. According to the spiral-fin condenser, the refrigerant filling amount can be reduced, heat exchange efficiency is improved, and energy consumption is reduced. Besides, the size is reduced, tubes are saved, and the overall weight is lowered. In addition, since the inner core is arranged in the heat exchange tube, the structure modifying cost is low, and the structure adaptability is high.
Description
Technical field
The present invention relates to refrigeration and heat dissipation equipment field, especially relate to a kind of rotation wing condenser and the refrigerator with it.
Background technology
On refrigerator market, wind cooling refrigerator ratio more and more higher, refrigerator volume is increasing, and conventional built-in condenser is
The radiating requirements of the whole machine of refrigerator cannot be met, so big volume wind cooling refrigerator commonly uses external air-cooled condenser as refrigeration system
The radiator of system.
In a kind of refrigerator disclosed in correlation technique, propose to be used as the radiator of big volume refrigerator using rotation wing condenser,
In recent years it is to improve heat exchange efficiency between, the structure of rotation wing condenser experienced multiple structure change, such as in the outer surface of heat exchanger tube
Extension fin is transformed into threaded pipe type, embossing is finned, equal finned, finned, aluminum fin type of l type etc., or to winding
Structure improves.
But these improvement belong to the enhanced heat exchange outside to condenser tube although the effect improving heat exchange efficiency can be played,
But effect will not be particularly evident.These rotation wing condensers have a disadvantage in that the weight of one, rotation wing condenser is too big;2nd, heat exchange
Pipe internal volume is big, and refrigerant charge is many;3rd, limited heat transfer effect by cast not high.
Content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this reason, the present invention
A kind of rotation wing condenser is proposed on one side, this rotation wing condenser weight can mitigate, and can reduce refrigerant charge, and heat exchange effect
Rate can be improved.
Further object is that providing a kind of refrigerator with above-mentioned rotation wing condenser.
Rotation wing condenser according to the present invention, comprising: heat exchanger tube, the outside of described heat exchanger tube is provided with helical fin, described
It is provided with inner core in heat exchanger tube, between described heat exchanger tube and described inner core, limit coolant channel.
Rotation wing condenser according to embodiments of the present invention, by arranging hollow core pipe and separating muscle, core in heat exchanger tube
Non-filler and two ends closure in pipe, the refrigerant charge of therefore rotation wing condenser can reduce, and heat exchange efficiency improves, and saves
Energy consumption, and the volume making rotation wing condenser in the structure compared with the centreless pipework condensation device of equal exchange capability of heat, having core pipe reduces,
Thus having saved tubing, reduce overall weight.Further, since core pipe is arranged in heat exchanger tube, structure of modification cost is relatively low, knot
Structure wide adaptability.
In certain embodiments, described inner core is formed as hollow core pipe, non-filler and two ends closure in described core pipe.
Specifically, the outer surface of described core pipe is provided with groove or screw thread.
Alternatively, it is provided with separation muscle between described heat exchanger tube and described core pipe, described separation muscle is multiple and multiple described
Separate muscle along the circumferentially spaced arrangement of described core pipe, multiple described separation muscle are coordinated with described core pipe and described heat exchanger tube respectively
So that described coolant channel to be divided into multiple by-paths.
Alternatively, described separation muscle is welded to connect on described heat exchanger tube.
More specifically, in described heat exchanger tube radially, the inner peripheral surface of the periphery wall of described core pipe and described heat exchanger tube it
Between gap be 1-3mm between.
In further embodiments, described inner core is formed as arc or corrugated heat exchanger fin.
Specifically, described inner core is provided with least one of through hole and projection.
In certain embodiments, described heat exchanger tube has multistage straight length and at least one section bending section, described in adjacent two sections
It is connected with one section of bending section, described inner core is only defined in described straight length, described inner core is many and one a pair between straight length
It is located in described multistage straight length with answering.
According to the refrigerator of the present invention, including the rotation wing condenser according to the present invention.
Refrigerator according to embodiments of the present invention, due to being provided with the rotation wing condenser with inner core-hollow, improves efficiency,
Be conducive to reducing volume, weight.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
Substantially and easy to understand, wherein:
Fig. 1 is the top view of rotation wing condenser according to embodiments of the present invention;
Fig. 2 is the front view of rotation wing condenser according to embodiments of the present invention;
Fig. 3 is according to embodiments of the present invention one heat exchanger tube and internal structure sectional view;
Fig. 4 is the heat exchanger tube shown in Fig. 3 and internal structure axonometric chart;
Fig. 5 is according to embodiments of the present invention two heat exchanger tube and internal structure sectional view;
Fig. 6 is the heat exchanger tube shown in Fig. 5 and internal structure axonometric chart;
Fig. 7 is according to embodiments of the present invention three heat exchanger tube and internal structure sectional view;
Fig. 8 is according to embodiments of the present invention four heat exchanger tube and internal structure partial section;
Fig. 9 is according to embodiments of the present invention five heat exchanger tube and internal structure partial section.
Reference:
Rotation wing condenser 100,
Heat exchanger tube 1, straight length 11, bending section 12,
Helical fin 2, inner core 3, core pipe 31, heat exchanger fin 32, through hole 33, raised 34,
Coolant channel 4, by-path 41, gap width w, separation muscle 5.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1-Fig. 9, rotation wing condenser 100 according to embodiments of the present invention is described.
As depicted in figs. 1 and 2, rotation wing condenser 100 includes heat exchanger tube 1, and heat exchanger tube 1, through being bent to form multiple structure, changes
The outside of heat pipe 1 is provided with helical fin 2, and helical fin 2 is around heat exchanger tube 1 spiral extension.
In some instances, rotation wing condenser 100 is made by the way of spiral fin coil volume layer, is first compressed on fin
On the heat exchanger tube 1 of basic unit's tubing, then the pipe winding fin is carried out by snakelike bending by equipment, then fixed support is adopted
Riveting or the mode fixing tube of welding, finally can make rotation wing condenser 100.
As shown in Fig. 3-Fig. 9, in rotation wing condenser 100 according to embodiments of the present invention, it is provided with inner core 3 in heat exchanger tube 1, changes
Coolant channel 4 is limited between heat pipe 1 and inner core 3.
It is understood that circulate in the pipeline of rotation wing condenser is the cold-producing medium being transitioned into liquid from gaseous state, and cold
It is the air of forced convertion outside condenser pipe, under this kind of heat transfer boundary condition, for condenser external structure, in condenser tube
The heat exchange efficiency impact overall on rotation wing condenser of thermal resistance between cold-producing medium and tube wall is bigger.
The heat exchanger tube of conventional rotation wing condenser is circular pipe, and the flowing of cold-producing medium meets in thermal conduction study fluid in round tube
Flow behavior in road.Now, the flowing of cold-producing medium is maximum in pipe central speed, on caliber direction, is more remote from pipe
The speed of center cold-producing medium is lower.In pipe, the maximum place of speed is located at pipeline center, but is and heat conductive wall herein
, from farthest, for the heat transfer condition of convection cell and wall, fluid velocity is faster, and the coefficient of heat transfer is bigger for identity distance, so, in pipe
Flow of fluid due to being limited by cast, the coefficient of heat transfer is less, so leading to bigger refrigerator, rotation wing condenser volume
Corresponding increase.
And in the embodiment of the present invention, by arranging inner core 3 in heat exchanger tube 1, the inside that inner core 3 occupies heat exchanger tube 1 is empty
Between so that coolant channel 4 forms narrow and small passage.For not having the heat exchanger tube of inner core, it is provided with the heat exchanger tube of inner core 3
In 1, refrigerant flow rates maximum is close apart from the periphery wall of heat exchanger tube 1, so kind mode can changing significantly inside enhanced tube
The thermal efficiency, thus realize improving the purpose of the overall heat exchange efficiency of rotation wing condenser 100.
The heat exchange efficiency of rotation wing condenser 100 improves, and heat dissipation capacity just can improve, therefore with the equal radiating not setting inner core
The rotation wing condenser of ability is compared, and the pipe range of heat exchanger tube 1 of rotation wing condenser 100 of the embodiment of the present invention and volume all can subtract
Little, the charging amount of rotation wing condenser 100 inner refrigerant also can reduce.
Rotation wing condenser 100 according to embodiments of the present invention, by arranging inner core 3, the therefore condensation of rotation wing in heat exchanger tube 1
The refrigerant charge of device 100 can reduce, and heat exchange efficiency improves, and saves energy consumption, and in the no inner core with equal exchange capability of heat
Condenser is compared, and the structure having inner core 3 makes the volume of rotation wing condenser 100 reduce, thus having saved tubing, reduces overall weight
Amount.Further, since inner core 3 is arranged in heat exchanger tube 1, the setting of inner core 3 affects not on the other structures of rotation wing condenser 100
Greatly, when inner core 3 being applied on various types of rotation wing condensers, these rotation wing condensers all need not excessively restructure, and will set
The rotation wing condenser 100 having put inner core 3 is arranged on device structure when on refrigeration or heat dissipation equipment and without change, therefore revolves wing
The structure of modification cost of condenser 100 is relatively low, the wide adaptability of rotation wing condenser 100.
In certain embodiments, as shown in figure 1, heat exchanger tube 1 has multistage straight length 11 and at least one section bending section 12, phase
It is connected with one section of bending section 12, core pipe 31 is only defined in straight length 11, and does not set in bending section 12 between adjacent two sections of straight lengths 11
Core pipe 31.So, on the one hand it is easy to arrange core pipe 31, on the other hand avoid cold-producing medium to be arrested in bending section 12 and lead to not flow
Logical.
Specifically, core pipe 31 is many and is located at correspondingly in multistage straight length 11, so can significantly be lifted and change
The thermal efficiency.Certainly, core pipe 31 can also have other setting forms in heat exchanger tube 1, for example, it is possible to only in straight-run of pipe section 11 or
In a part of straight length of person 11, a piece core pipe 31 of setting or many core pipes 31, are not specifically limited here.
In an embodiment of the present invention, inner core 3 can form tubulose, and inner core 3 also can form lamellar, specifically not limit here
System.The heat exchanger tube internal structure revolving wing condenser 100 in different embodiments is described with reference to the accompanying drawings.It is understood that not
Show identical part or the part with identical function with identical label in embodiment.
Fig. 3 and Fig. 4 illustrates the heat exchanger tube internal structure revolving wing condenser 100 in embodiment one.In embodiment one, interior
Core 3 is formed as hollow core pipe 31, and in core pipe 31, non-filler and two ends closure, limit system between heat exchanger tube 1 and core pipe 31
Coolant channel 4.By arranging hollow core pipe 31 in heat exchanger tube 1, between the periphery wall of the inner peripheral surface of heat exchanger tube 1 and core pipe 31
Form small passage, this passage is used for the cold-producing medium that circulates, constitute coolant channel 4.
Heat exchanger tube 1 forms double-layer sleeve structure with core pipe 31, during coolant channel 4 between cold-producing medium stream is through sleeve pipe, system
The flowing of cryogen does not meet flow behavior in circular pipe for the fluid in thermal conduction study, and now the flow velocity maximum of cold-producing medium is located at
Middle position between heat exchanger tube 1 inner peripheral surface of core pipe 31 periphery wall of internal layer and outer layer, fluid velocity at heat exchanger tube 1 inwall
Accelerate, the coefficient of heat transfer increases.Core pipe 31 is arranged to hollow pipe and non-filler in it, advantageously reduces rotation wing condenser 100
Weight.
For strengthening heat exchange efficiency further, groove can be arranged on the outer surface of core pipe 31, so revolve wing condenser
100 specific surface area can be increased, and heat exchange efficiency can further improve.Here the shape of groove can be not specifically limited, example
If groove can be rectangular channel, triangular groove etc..
Or, also can be threaded on the outer surface of core pipe 31, screw thread can also regard the axial spiral shell along core pipe 31 as
The groove that rotation extends.
In embodiment one, core pipe 31 can be fixed on heat exchanger tube 1 by dowel (not shown).Specifically, connect
Muscle can be fixed on heat exchanger tube 1 by welding manner such as soldering.
In embodiment one, the central axis of core pipe 31 can coincide with the central axis of heat exchanger tube 1, and that is, inner core 3 can
To be arranged on the center position of heat exchanger tube 1, so in the circumference of heat exchanger tube 1, the width of coolant channel 4 is more uniform, has
It is distributed beneficial to cold-producing medium more uniform in the circumference of heat exchanger tube 1, tube wall heat exchange can be made full use of.
Specifically, gap width w between inner layer sleeve and outer layer sleeve can between 1-3 mm, that is, in heat exchanger tube 1
Radially, the gap between the inner peripheral surface of the periphery wall of core pipe 31 and heat exchanger tube 1 is between 1-3mm, so advantageously in system
After cryogen circulation, heat distributes.
In embodiment one, heat exchanger tube 1 and core pipe 31 are pipe, and heat exchanger tube 1 and core pipe 31 are arranged concentrically, this structure
Simple easy processing, and in the circumference of heat exchanger tube 1, the width of coolant channel 4 is all equal, is conducive to installing and fixes.
Certainly in embodiment one, the shape not limited to this of heat exchanger tube 1 and core pipe 31.For example, core pipe 31 can be triangular pipe, square
Shape pipe, polygonal tube etc., the cross section of core pipe 31 may be alternatively formed to irregular shape.
Again for example, heat exchanger tube 1 can be flat tube, streamline tube, and here, it is streamlined knot that streamline tube refers to cross section
Structure, streamlined refers to smooth and the shape of rule, such as shuttle shape, water-drop-shaped etc..Heat exchanger tube 1 is formed streamline tube, has
Lead to beneficial to pipe outer air flow, reduce air circulation resistance.
Fig. 5 and Fig. 6 illustrates the heat exchanger tube internal structure revolving wing condenser 100 in embodiment two.The heat exchange of embodiment two
Pipe internal structure is substantially the same with heat exchanger tube internal structure in embodiment one, and same section repeats no more here.
Except that, in embodiment two, it is provided with separation muscle 5 between heat exchanger tube 1 and core pipe 31, separates the setting of muscle 5
Cold-producing medium is increased, heat transfer effect is strengthened further with wall contact area.
Specifically, as shown in fig. 6, separating muscle 5 is the circumferentially spaced arrangement along core pipe 31 for multiple and multiple separation muscle 5,
Separate muscle 5 axially extending along core pipe 31.
In embodiment two, as shown in Figure 5 and Figure 6, multiple separation muscle 5 are coordinated with core pipe 31 and heat exchanger tube 1 respectively to incite somebody to action
Coolant channel 4 is divided into multiple by-paths 41.
At least two separation muscle 5, the inner of every separation muscle 5 and the periphery of core pipe 31 are arranged on the periphery wall of core pipe 31
Wall is connected, and the outer end separating muscle 5 is connected with the inner peripheral surface of heat exchanger tube 1.Due to a plurality of compartmentation separating muscle 5, by core
Coolant channel 4 between the inner peripheral surface of the periphery wall of pipe 31 and heat exchanger tube 1 is separated into several small by-paths 41, and cold-producing medium exists
Flow in this small by-path 41.
When cold-producing medium is through the middle several small by-path 41 of two-layer sleeve pipe, the flow velocity maximum of cold-producing medium is located at by-path
41 center position, now, refrigerant flow rates maximum furthers apart from outer tube wall, is additionally, since and separates setting of muscle 5
Put, cold-producing medium and the heat exchange of tube wall face are more abundant, can heat exchange efficiency significantly inside enhanced tube.
Alternatively, separate muscle 5 to be integrally formed with core pipe 31, consequently facilitating assembling.
In embodiment two, separating muscle 5 can be by being welded to connect on heat exchanger tube 1.For example, separate muscle 5 to weld by lush
It is welded on heat exchanger tube 1, specifically, solder can be coated in the outer end separating muscle 5, core pipe-separation muscle is placed in heat exchanger tube 1
Interior, then above-mentioned part is placed in lush weldering brazier, under high temperature action, solder fusing.After the cooling of above-mentioned part, separate muscle
5 are fixedly connected between heat exchanger tube 1.
Fig. 7 illustrates the heat exchanger tube internal structure revolving wing condenser 100 in embodiment three.Inside the heat exchanger tube of embodiment three
Structure is substantially the same with heat exchanger tube internal structure in embodiment one, and the heat exchanger tube internal structure of embodiment three also can be with embodiment two
Middle heat exchanger tube internal structure is substantially the same, and same section repeats no more here.
Except that, in embodiment three, core pipe 31 can be provided with through hole 33 or raised 34.Here, through hole 33 is
The coolant channel 4 of connection core pipe 31 opposite sides, core pipe 31 inner chamber will not be connected with coolant channel 4 by through hole 33.Logical
Hole 33 or the setting of projection 34, can make coolant channel 4 inner refrigerant flow fluctuation big, strengthen heat exchange efficiency further.
Fig. 8 illustrates the heat exchanger tube internal structure revolving wing condenser 100 in example IV.
In example IV, inner core 3 is formed as the heat exchanger fin 32 of arc, and heat exchanger fin 32 can be provided with through hole 33.In embodiment
In four, heat exchanger fin 32 extends it is ensured that heat exchanger fin 32 has guiding work to cold-producing medium along the flow direction of heat exchanger tube 1 inner refrigerant
With.
Fig. 9 illustrates the heat exchanger tube internal structure revolving wing condenser 100 in embodiment five.In embodiment five, inner core 3 shape
Become undulatory heat exchanger fin 32, undulatory heat exchanger fin 32 can arrange through hole.
To sum up, the rotation wing condenser 100 of the embodiment of the present invention, technology is simple, low cost, efficiency height, small volume, heat-exchange performance
Can be good, overcome the shortcoming more than existing rotation wing condenser weight weight, coolant injection amount.
Refrigerator according to embodiments of the present invention, including rotation wing condenser 100 according to the above embodiment of the present invention, rotation wing is cold
Condenser 100 is illustrated by above-described embodiment, is not discussed herein.
Refrigerator according to embodiments of the present invention, due to being provided with the rotation wing condenser 100 with inner core-hollow 3, improves
Efficiency, is conducive to reducing volume, weight.
In describing the invention it is to be understood that term " " center ", " thickness ", " top ", " bottom ", " interior ", " outward ",
" axial ", " radially ", " circumferential " etc. the orientation of instruction or position relationship be based on orientation shown in the drawings or position relationship, be only
For the ease of the description present invention and simplification description, rather than the device of instruction or hint indication or element must have specific side
Position, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.In describing the invention, unless
It is otherwise noted, " multiple " are meant that two or more.
In describing the invention, unless otherwise clearly defined and limited, term " being connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral;Can be to be mechanically connected;Can
Being to be joined directly together it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals or two elements
Interaction relationship.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean with reference to this embodiment or
The specific features of example description, structure, material or feature are contained at least one embodiment or the example of the present invention.At this
In description, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, description concrete
Feature, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Multiple changes, modification, replacement and modification can be carried out to these embodiments in the case of the principle of the disengaging present invention and objective, this
The scope of invention is limited by claim and equivalent.
Claims (10)
1. a kind of rotation wing condenser is it is characterised in that include: heat exchanger tube, the outside of described heat exchanger tube is provided with helical fin, described
It is provided with inner core in heat exchanger tube, between described heat exchanger tube and described inner core, limit coolant channel.
2. rotation wing condenser according to claim 1 is it is characterised in that described inner core is formed as hollow core pipe, described
Non-filler and two ends closure in core pipe.
3. rotation wing condenser according to claim 2 is it is characterised in that the outer surface of described core pipe is provided with groove or spiral shell
Stricture of vagina.
4. rotation wing condenser according to claim 2 is it is characterised in that be provided between described heat exchanger tube and described core pipe point
Muscle, described separation muscle is multiple and multiple described muscle that separate along the circumferentially spaced arrangement of described core pipe, multiple described separations
Muscle is coordinated with described core pipe and described heat exchanger tube so that described coolant channel is divided into multiple by-paths respectively.
5. rotation wing condenser according to claim 4 is it is characterised in that described separation muscle is welded to connect in described heat exchanger tube
On.
6. according to claim 2 rotation wing condenser it is characterised in that in described heat exchanger tube radially, described core pipe
Periphery wall and the inner peripheral surface of described heat exchanger tube between gap be 1-3mm between.
7. rotation wing condenser according to claim 1 is it is characterised in that described inner core is formed as arc or corrugated
Heat exchanger fin.
8. rotation wing condenser according to claim 1 is it is characterised in that described inner core is provided with through hole and projection extremely
Few one.
9. the rotation wing condenser according to any one of claim 1-8 it is characterised in that described heat exchanger tube to have multistage straight
Pipeline section and at least one section bending section, are connected with one section of bending section between adjacent two sections of described straight lengths, described inner core is only defined institute
State in straight length, described inner core is many and is located at correspondingly in described multistage straight length.
10. a kind of refrigerator is it is characterised in that include the rotation wing condenser according to any one of claim 1-9.
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WO2018076363A1 (en) * | 2016-10-31 | 2018-05-03 | 合肥美的电冰箱有限公司 | Spiral-fin condenser and refrigerator provided with same |
CN109848660A (en) * | 2019-03-11 | 2019-06-07 | 任耀文 | A kind of preparation method of active cooling structure |
CN109938580A (en) * | 2017-12-20 | 2019-06-28 | 广东美的生活电器制造有限公司 | Screw rod, food preparation cup and food processor |
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CN202869358U (en) * | 2012-09-21 | 2013-04-10 | 杭州复利节能环保科技有限公司 | Heat transfer tube provided with inner insertion |
CN103175348A (en) * | 2013-04-12 | 2013-06-26 | 佛山市顺德区高美空调设备有限公司 | Linear micro-channel type heat exchanger |
CN203298645U (en) * | 2013-04-23 | 2013-11-20 | 广东美的电器股份有限公司 | Heat exchange tube and heat exchanger |
CN103322848A (en) * | 2013-05-30 | 2013-09-25 | 姜堰永盛冷却设备制造有限公司 | Heat exchange tube with fins embedded inside |
CN205037798U (en) * | 2015-10-20 | 2016-02-17 | 四川五环石化装备有限公司 | Fin formula heat exchange tube of parent tube inner zone spoiler |
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WO2018076363A1 (en) * | 2016-10-31 | 2018-05-03 | 合肥美的电冰箱有限公司 | Spiral-fin condenser and refrigerator provided with same |
CN109938580A (en) * | 2017-12-20 | 2019-06-28 | 广东美的生活电器制造有限公司 | Screw rod, food preparation cup and food processor |
CN109848660A (en) * | 2019-03-11 | 2019-06-07 | 任耀文 | A kind of preparation method of active cooling structure |
CN109848660B (en) * | 2019-03-11 | 2022-05-31 | 西安远航真空钎焊技术有限公司 | Preparation method of active cooling structure |
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