CN108692589A - It is a kind of to intersect dendritic enhanced heat exchange finned heat exchanger - Google Patents
It is a kind of to intersect dendritic enhanced heat exchange finned heat exchanger Download PDFInfo
- Publication number
- CN108692589A CN108692589A CN201810387287.6A CN201810387287A CN108692589A CN 108692589 A CN108692589 A CN 108692589A CN 201810387287 A CN201810387287 A CN 201810387287A CN 108692589 A CN108692589 A CN 108692589A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- deviation
- fin
- dendritic
- exchange fin
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
Abstract
Intersecting dendritic enhanced heat exchange finned heat exchanger the invention discloses a kind of, including a plurality of heat exchange fin arranged in parallel, the heat exchange fin is divided into multistage, from the second segment of heat exchange fin, the deviation branch of the side deviation of oriented heat exchange fin is all provided on every section of windward side, and the deviation direction of the deviation branch on adjacent two sections is opposite;The structure all same of every heat exchange fin, the top of the deviation branch are located at the position of center line of two adjacent heat exchange fins.
Description
Technical field
The invention belongs to air-conditioning equipment fields, intersecting dendritic enhanced heat exchange finned heat exchanger more particularly to a kind of.
Background technology
Finned tube exchanger is an important component in air-conditioning system, and good heat exchange and drooping characteristic are to maintainer
Quality of uniting is extremely important.Existing fin is only by reducing spacing of fin, and increase number of fins meets air and the heat exchange of wall surface is wanted
It asks, structure is heavier.
For the deficiency of straight-plate-type fin, the present invention is proposed by several " intersections ", is perforated according to certain rules to it and group
At dendritic fin with circular hole heat exchanger.The heat exchanger can be by flow field central area (farthest from heat exchange surface) air fast transfer
Onto heat exchange surface, increase heat transfer temperature difference, improve heat transfer intensity, improves thermal comfort, and reduce equipment size.Simultaneously in fin
Upper trepanning forms silencing cavity, can reduce Heat exchanger blower and pneumatic noise to a certain extent, has enhanced heat exchange double with noise reduction
Weight effect.
The effect of the convection current heat transfer of air-supply arrangement fin is the evaluation most important index of fin quality, at present wing on the market
Piece is mostly straight-plate-type, and it is big that there are occupied spaces, the disadvantage of heat transfer effect difference.Occupied space makes equipment manufacturing cost increase greatly, material
The waste of material, while also making indoor environment not beautiful enough;Heat transfer effect difference can lead to the thermal comfort deficiency and energy of human body
Waste.
Most widely used existing market is straight-plate-type fin.But straight-plate-type fin has the following disadvantages:
(1) existing fin increases the heat transfer requirements that number of fins meets air and wall surface, knot only by reducing spacing of fin
Structure is heavier, and metal material consumption is big, of high cost.
(2) fin heat exchange only considers heat transfer requirements, requires sound-deadening and noise-reducing to consider deficiency, leads to finned heat exchanger noise
Greatly, comfort is not good enough.
For the deficiency of straight-plate-type fin, the present invention proposes to intersect dendritic enhanced heat exchange and noise reduction finned heat exchanger, aobvious
The Convective Heat Transfer for improving fin is write, while reducing equipment manufacturing cost, carries decrease of noise functions.
Invention content
To solve the above problems, the present invention proposes a kind of dendritic enhanced heat exchange finned heat exchanger of intersection.
The present invention is achieved through the following technical solutions:
It is a kind of to intersect dendritic enhanced heat exchange finned heat exchanger, including a plurality of heat exchange fin arranged in parallel, the heat exchange wing
Piece is divided into multistage, and from the second segment of heat exchange fin, the inclined of the side deviation of oriented heat exchange fin is all provided on every section of windward side
Branch is rolled over, and the deviation direction of the deviation branch on adjacent two sections is opposite;The structure all same of every heat exchange fin, the deviation branch
Top is located at the position of center line of two adjacent heat exchange fins;
Further to improve, the horizontal component of the heat exchange fin is provided with noise reduction array of orifices, and neighbouring two
The aperture interlaced arrangement of block heat exchange fin.
Further improvement, a diameter of 0.01cm~0.05cm of the aperture of the noise reduction array of orifices, small pitch of holes are
1.0cm~2.0cm.
Further to improve, the spacing d between neighbouring two pieces of heat exchange fins is 0.5~1.0cm, and deviation branch is to one
It is 40 °~50 ° that lateral deviation, which rolls over angle, θ, deviation segment length h=d/ (2sin θ).
Compared with prior art, the present invention has the following advantages:
1) key point of the invention is designed by the intersection deviation of fins, realizes that central core air-flow is handed over boundary layer airflow
It changes, to make the temperature difference reach maximum, enhanced heat exchange.The quantity of heat convection is directlyed proportional to temperature difference (temperature difference of fluid and wall surface),
Heat exchange amount can be improved by improving temperature difference, improve heat transfer intensity.In general, in fluid interchange process, because apart from small, wall surface
Nearby relatively, and central area fluid is due to distant from wall surface, the area for the fluid temperature (F.T.) in (boundary layer) and wall surface temperature
Domain fluid temperature (F.T.) differs bigger with wall surface temperature, and therefore, central area fluid and boundary layer fluid are exchanged, increase fluid with
The temperature difference of wall surface is the important means for improving heat convection effect.Intersection branch fin structure proposed by the present invention is to be based on
Principle design.Fluid is flowed along S types track, and central core air-flow exchanges repeatedly with boundary layer airflow, is realized to be similar to and be flutterred
Gram effect shuffled increases the heat transfer temperature difference of fluid and wall surface, improves heat transfer intensity.
2) to finned heat exchanger, the noise of wind turbine and air-flow (speed is less than 10m/s, relatively low) based on middle low frequency,
And noise reduction cavity can effectively eliminate middle low frequency and make an uproar.The present invention proposes the aperture interlaced arrangement of neighbouring fin, forms noise reduction
Cavity.Aperture is opened up at the non-deviation position of fin, upper and lower fin is both heat exchange wall surface and flow noise and fan noise
Noise reduction cavity, noise reduction muting function are good.
Description of the drawings
Fig. 1 is 1 air flow schematic diagram of embodiment;
Fig. 2 is 1 aperture schematic diagram of embodiment.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, and make the present invention features described above,
Purpose and advantage are more clear understandable, are further explained explanation to the present invention in conjunction with embodiment, it is noted that herein
All embodiments listed are merely illustrative, are not meant to be defined the scope of the invention.
Embodiment 1:
As shown in Figure 1, intersect dendritic enhanced heat exchange finned heat exchanger, including a plurality of heat exchange fin arranged in parallel, to every
Fin is divided into several sections by one piece of heat exchange fin along air current flow direction, and since second segment, each section of windward side is to side
Face deviation certain angle constitutes deviation branch.Latter section of windward side to other side deviation certain angle, front and back section fin it is inclined
It rolls over branch and forms chi structure, concrete structure is as shown in Figure 1.
In the horizontal surface of each section of fin, it is provided with array of orifices, concrete structure is as shown in Figure 2.To form muffler chamber
The aperture of structure, every two pieces of neighbouring fins is interlaced arrangement, i.e., the node of the aperture arrangement of first piece fin in grid
On, then the aperture arrangement of adjacent one piece of fin heart position within a grid.
It can be seen that from the flow trace of air-flow along bottom horizontal flow sheet direction, under the rectified action for intersecting deviation branch,
Air-flow is along S type flow forwards.Flow field central area (centers of two adjacent fins) fluid exists with fin near wall fluid
Each section of fin submits change place, i.e., when second segment fin central area fluid flows to third section fin area, close to third section
Fin wall surface, and second segment fin near wall fluid is pressed against central area in third section fin area, repeatedly, until
Flow out finned heat exchanger.
Spacing d between heat exchange fin is 0.5~1.0cm, and deviation angle, θ is 40 °~50 °, deviation segment length h=d/
(2sin θ) ensures the endpoint of deviation fin in center line.Between a diameter of 0.01cm~0.05cm of aperture, small pitch of holes
Between 1.0cm~2.0cm, noise reduction cavity is formed.
Claims (4)
1. a kind of intersecting dendritic enhanced heat exchange finned heat exchanger, including a plurality of heat exchange fin arranged in parallel, which is characterized in that institute
It states heat exchange fin and is divided into multistage, from the second segment of heat exchange fin, the side of oriented heat exchange fin is all provided on every section of windward side
The deviation branch of deviation, and the deviation direction of the deviation branch on adjacent two sections is opposite;The structure all same of every heat exchange fin, it is described
The top of deviation branch is located at the position of center line of two adjacent heat exchange fins.
2. a kind of dendritic enhanced heat exchange finned heat exchanger of intersection as described in claim 1, which is characterized in that the heat exchange fin
Horizontal component be provided with noise reduction array of orifices, and the aperture interlaced arrangement of two pieces of neighbouring heat exchange fins.
3. a kind of dendritic enhanced heat exchange finned heat exchanger of intersection as claimed in claim 2, which is characterized in that the noise reduction aperture
A diameter of 0.01cm~0.05cm of the aperture of array, small pitch of holes are 1.0cm~2.0cm.
4. a kind of dendritic enhanced heat exchange finned heat exchanger of intersection as described in claim 1, which is characterized in that neighbouring two
Spacing d between block heat exchange fin is 0.5~1.0cm, deviation branch to side deviation angle, θ be 40 °~50 °, deviation segment length h
=d/ (2sin θ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387287.6A CN108692589B (en) | 2018-04-26 | 2018-04-26 | Cross dendritic reinforced heat exchange fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387287.6A CN108692589B (en) | 2018-04-26 | 2018-04-26 | Cross dendritic reinforced heat exchange fin heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108692589A true CN108692589A (en) | 2018-10-23 |
| CN108692589B CN108692589B (en) | 2020-05-19 |
Family
ID=63845791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810387287.6A Active CN108692589B (en) | 2018-04-26 | 2018-04-26 | Cross dendritic reinforced heat exchange fin heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108692589B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159313A (en) * | 1995-12-08 | 1997-06-20 | Fujitsu General Ltd | Heat exchanger |
| JP2007255812A (en) * | 2006-03-24 | 2007-10-04 | Matsushita Electric Ind Co Ltd | Finned heat exchanger, and air conditioner |
| CN203980991U (en) * | 2014-07-28 | 2014-12-03 | 北京市燃气集团有限责任公司 | A kind of plate-fin heat exchanger punching corrugated fin structure |
| CN104807362A (en) * | 2015-04-22 | 2015-07-29 | 哈尔滨工程大学 | Efficient plate fin type heat radiator fin |
| CN106052462A (en) * | 2016-06-24 | 2016-10-26 | 西安科技大学 | Corrugated fin heat exchange structure for mine air cooler and design method of corrugated fin heat exchange structure |
| CN206291341U (en) * | 2016-12-09 | 2017-06-30 | 美的集团武汉制冷设备有限公司 | Heat exchanger for air-conditioner indoor machine and indoor apparatus of air conditioner |
| CN206572736U (en) * | 2017-02-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Fin-tube heat exchanger and the air conditioner with it |
-
2018
- 2018-04-26 CN CN201810387287.6A patent/CN108692589B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159313A (en) * | 1995-12-08 | 1997-06-20 | Fujitsu General Ltd | Heat exchanger |
| JP2007255812A (en) * | 2006-03-24 | 2007-10-04 | Matsushita Electric Ind Co Ltd | Finned heat exchanger, and air conditioner |
| CN203980991U (en) * | 2014-07-28 | 2014-12-03 | 北京市燃气集团有限责任公司 | A kind of plate-fin heat exchanger punching corrugated fin structure |
| CN104807362A (en) * | 2015-04-22 | 2015-07-29 | 哈尔滨工程大学 | Efficient plate fin type heat radiator fin |
| CN106052462A (en) * | 2016-06-24 | 2016-10-26 | 西安科技大学 | Corrugated fin heat exchange structure for mine air cooler and design method of corrugated fin heat exchange structure |
| CN206291341U (en) * | 2016-12-09 | 2017-06-30 | 美的集团武汉制冷设备有限公司 | Heat exchanger for air-conditioner indoor machine and indoor apparatus of air conditioner |
| CN206572736U (en) * | 2017-02-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Fin-tube heat exchanger and the air conditioner with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108692589B (en) | 2020-05-19 |
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