CN201059904Y - Antisymmetric slitting finned tube heat exchanger - Google Patents

Antisymmetric slitting finned tube heat exchanger Download PDF

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Publication number
CN201059904Y
CN201059904Y CNU200720054033XU CN200720054033U CN201059904Y CN 201059904 Y CN201059904 Y CN 201059904Y CN U200720054033X U CNU200720054033X U CN U200720054033XU CN 200720054033 U CN200720054033 U CN 200720054033U CN 201059904 Y CN201059904 Y CN 201059904Y
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CN
China
Prior art keywords
fin
row
heat
window
heat exchanger
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Expired - Lifetime
Application number
CNU200720054033XU
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Chinese (zh)
Inventor
邢淑敏
梁祥飞
刘中杰
庄嵘
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CNU200720054033XU priority Critical patent/CN201059904Y/en
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Publication of CN201059904Y publication Critical patent/CN201059904Y/en
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Abstract

The utility model relates to an unsymmetrical slotted finned tube heat exchanger, which is composed of a row of fins including a plurality of refrigerant tubes and a plurality of ranks of fins vertically and tightly sleeved outside the refrigerant tubes. Each fin is composed of a plurality of refrigerant tube holes arranged on a substrate, and a row or more than one row of bridging pieces or window pieces; the width of the bridging pieces or the window pieces on the fins in adjacent rows along the flowing direction of the heat exchanging medium outside the refrigerant tubes and among each row of fins is identical or reduced, and the amount of the bridging pieces or the window pieces are gradually increased along with the increasing of the row number of the heat exchanger. The utility model keeps the structure of the original fined tube type fin heat exchanger unchanged, but changes the width of the slot, therefore effectively reducing the wind resistance at the front rows of the heat exchanger, and increasing the heat exchanging differential temperature at the rear rows; simultaneously, the utility model leads the air speed passing through the rear rows to be quick, and the bridging pieces arranged at the rear rows to be narrow and in a larger amount, the temperature boundary layer is effectively destroyed, and the heat exchanging at the rear rows is intensified, thereby the overall heat exchanging effect of the heat exchanger is enhanced.

Description

A kind of asymmetric slitted fin heat exchange of heat pipe
Technical field
The utility model relates to air-conditioning and refrigerator field, relates in particular to a kind of fin-tube type finned heat exchanger.
Background technology
In recent years, along with the raising of the fierceness of air-conditioning market competition and people's energy consciousness, air-conditioning equipment constantly develops to miniaturization, economical, high energy efficiency direction.The fin-tube type finned heat exchanger is a heat exchanger structure form the most frequently used in the air-conditioning, and the heat exchange of the outer fin of pipe then is the principal element of restriction heat exchanger efficiency.As shown in Figure 1, the slitted fin that traditional single row or multiple rows heat exchanger is adopted mainly contains window and bridge sheet, and general symmetry is cracked and bar seam width D 0(below be referred to as the seam wide D 0) identical.If stitch wide too narrowly, the density of promptly cracking is big, and then windage is bigger, and the heat exchange effect of heat exchanger front portion is better relatively, but since reducing of rear portion heat transfer temperature difference make that back row's heat exchange effect is relatively poor, and then the heat exchange property of heat exchanger integral body descended; If stitch wide too widely, the density of promptly cracking is little, can not reach good heat exchange effect again.
Summary of the invention
The utility model is at the deficiencies in the prior art and defective, and design provides a kind of fin that can strengthen the whole heat exchange effect of heat exchanger, reduces the windage at many row's heat exchangers front row, increases back row's heat transfer temperature difference, strengthens the whole heat exchange property of heat exchanger.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:
A kind of asymmetric slitted fin heat exchange of heat pipe, described heat exchanger is contained many refrigerant pipes and is formed with the vertical outer multiple row fin of described refrigerant pipe that tightly is enclosed within by single; Described fin is for offering a plurality of cold-producing medium pores, a row or the bridge sheet more than the row or window formation on the substrate; The mobile direction of heat transferring medium outside refrigerant pipe, the width of anterior bridge sheet of described fin or window is greater than the width of rear portion bridge sheet or window, and the quantity of anterior bridge sheet or window is less than the quantity of rear portion bridge sheet or window.
The mobile direction of heat transferring medium outside refrigerant pipe, the adjacent width of substrate between adjacent bridge sheet or window equates or reduces.
A kind of asymmetric slitted fin heat exchange of heat pipe, described heat exchanger contain many refrigerant pipes by many rows to be formed with the vertical outer multiple row fin of described refrigerant pipe that tightly is enclosed within; Described fin is for offering a plurality of cold-producing medium pores, a row or the bridge sheet more than the row or window formation on the substrate; The heat transferring medium direction that flows outside refrigerant pipe, each is arranged between described fin, and the width of bridge sheet or window equates or reduces on the described fin of adjacent row, and the quantity of bridge sheet or window is along with increasing progressively gradually of heat exchanger row number increases.
The heat transferring medium direction that flows outside refrigerant pipe, the width of arranging every row in the described fin equate or along with increasing progressively gradually of number of heat exchanger row successively decreases more.
The mobile direction of heat transferring medium outside refrigerant pipe, in the described fin of every row, the width of adjacent described bridge sheet or window equates or reduces.
The heat transferring medium direction that flows outside refrigerant pipe, each is arranged between described fin, and the width of substrate equates or along with increasing progressively gradually of number of heat exchanger row diminishes between adjacent bridge sheet or window.
The mobile direction of heat transferring medium outside refrigerant pipe, in the described fin of every row, the adjacent width of substrate between adjacent bridge sheet or window equates or reduces.
Described fin is a monoblock type fin or combines for two or more single fins.
Owing to adopted technique scheme, the beneficial effects of the utility model are: original fin-tube type finned heat exchanger structure is constant keeping, and only need change corresponding fin drift at interval and get final product.
By demand design fin drift, the width that will crack changes, and just can effectively reduce the windage at heat exchanger front row, increases back row's heat transfer temperature difference; Simultaneously, make through row's later wind speed bigger, and back row institute to open the bridge sheet narrow and many, effectively destroyed temperature boundary layer, strengthened back row's heat exchange, and then the whole heat exchange effect of enhancing heat exchanger.
Description of drawings
Fig. 1 is traditional fin partial schematic diagram;
Fig. 2 is the partial schematic diagram of fin among the embodiment one;
Fig. 3 is the cross section structure schematic diagram of Fig. 2 along A-A ' line;
Fig. 4 is the partial schematic diagram of fin among the embodiment two;
Fig. 5 is the partial schematic diagram of fin among the embodiment three;
Fig. 6 is the partial schematic diagram of fin among the embodiment four;
Fig. 7 is the partial schematic diagram of fin among the embodiment five;
Among the figure: the width D of cracking of bridge sheet or window 0~D 10
Width L1, the L2 of forward and backward row's fin
Heat transferring medium flows to F
Bridge sheet 1~8
Width 1a, 1b, 2a, 2b, 2c, the 2d of substrate between bridge sheet or the window
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Embodiment one
As Fig. 2, shown in Figure 3, described heat exchanger is contained many refrigerant pipes and is formed with the vertical outer multiple row fin of described refrigerant pipe that tightly is enclosed within by double; Two came the single fin of offering a plurality of cold-producing medium pores and several bridge sheets on the substrate before and after described fin comprised, refrigerant pipe passes the cold-producing medium pore; The mobile direction of heat transferring medium outside refrigerant pipe, the width D of the front-seat bridge sheet of being opened 1~3 1Arrange the width D of the bridge sheet of being opened 4~8 greater than the back 2, the quantity of front-seat bridge sheet is less than the quantity of back row's bridge sheet; Width 1a, the 1b of substrate are respectively D between the front-seat bridge sheet 1a, D 1bSubstrate width 2a~2d between the row's bridge sheet of back is respectively D 2a, D 2b, D 2c, D 2dD wherein 1a〉=D 1b〉=D 2a〉=D 2b〉=D 2c〉=D 2d
Fin in the present embodiment is the monoblock type fin, and the front and back single fin of two rows that promptly contains the bridge sheet is a monoblock type fin.Certainly, fin also can be designed as the non-integral type fin, and the front and back single fin of two rows that promptly contains the bridge sheet is the non-integral type fin.
No matter the utility model heat exchanger still is that condenser uses and all has same effect and operation principle as evaporimeter.Heat transferring medium enters along the F direction with certain speed, carries out heat exchange with fin.On the one hand, because the A/F broad of front-seat bridge sheet, the density of cracking is little, when heat transferring medium is flowed through bridge sheet 1,2,3, make front-seat temperature boundary layer disturbance less, the front-seat fin heat exchange of former relatively traditional fin is poor slightly, but causes the heat transferring medium and the heat transfer temperature difference of back row's heat exchanger to increase simultaneously, has effectively strengthened the heat exchange effect of back row's heat exchanger; On the other hand and since heat transferring medium through the front row suffered windage less, make through row's later wind speed bigger, and back row institute to open the bridge sheet narrow and many, effectively destroyed temperature boundary layer, strengthened back row's heat exchange, thereby strengthened the whole heat exchange effect of heat exchanger.
Embodiment two
As shown in Figure 4, the difference of present embodiment and embodiment one is that in the present embodiment, the width of front and back two row's fins is front wide and rear narrow, i.e. L 2>L 1Principle is with embodiment one, and numerical simulation result proves, front and rear row fin asymmetric arrangement and the fin surface seam sheet width layout that gradually changes combines, and the heat exchange effect is better.
Embodiment three
Shown in Figure 5, the difference of present embodiment and embodiment one is that present embodiment is three row's heat exchangers, the mobile direction of heat transferring medium outside refrigerant pipe, and the width of the bridge sheet of opening is along with the increase of heat exchanger row number reduces gradually; In the described fin of every row, the width of adjacent described bridge sheet reduces gradually, that is: D 1>D 2>D 3>D 4The width of substrate is also along with the increase of heat exchanger row number reduces gradually between the bridge sheet.The negligible amounts of the front-seat bridge sheet of this heat exchanger.Certainly, also can be that the width of respectively arranging the above bridge sheet of fin equates, i.e. D 1=D 2=D 3=D 4Or the width of preceding two the above bridge sheet of row's fin equates the width greater than the 3rd the above bridge sheet of row's fin, i.e. D 1=D 2=D 3>D 4
Embodiment four
As shown in Figure 6, the difference of present embodiment and embodiment one is that present embodiment is single heat exchanger, and the width of opening the bridge sheet at forward and backward two parts of described fin is front wide and rear narrow, i.e. D 1>D 2Principle reduces the windage and the heat exchange amount of heat exchanger first half with embodiment one, and then strengthens the heat exchange property of heat exchanger latter half.
Embodiment five
As shown in Figure 7, the difference of present embodiment and embodiment one is that in the present embodiment, front and back two row's fin surface cracks are for having the window of certain angle, and the width that is cracked is D respectively 1-D 10The width of front-seat window seam is greater than the width of back row's seam; In the described fin of every row, the width of adjacent described window equates or reduces, i.e. D 1〉=D 2〉=D 3〉=D 4>D 5〉=D 6〉=D 7〉=D 8〉=D 9〉=D 10The quantity of front-seat window is less than the quantity of back row's window.Principle reduces the windage and the heat exchange amount of heat exchanger first half with embodiment one, and then strengthens the heat exchange property of heat exchanger latter half.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only.Can also can be doube bridge for single bridge as each row's bridge sheet of opening, each height of arranging the bridge sheet can change, and the height of same row's bridge sheet also can change; Fin surface cracks also can combining for window and bridge sheet; Each arranges refrigerant pipe can be non-pipe, as flat tube or elliptical tube; Each caliber of arranging refrigerant pipe can change, but the principle of adhering to all the time is, each is arranged between described fin, and the width of bridge sheet or window equates or reduces on the described fin of adjacent row, and the quantity of bridge sheet or window is along with increasing progressively gradually of heat exchanger row number increases.Therefore, do not break away from any modification or partial replacement of the utility model spirit and scope, all should be encompassed in the middle of the protection domain of the present utility model.

Claims (8)

1. asymmetric slitted fin heat exchange of heat pipe, described heat exchanger is contained many refrigerant pipes and is formed with the vertical outer multiple row fin of described refrigerant pipe that tightly is enclosed within by single, and it is characterized in that: described fin is for offering a plurality of cold-producing medium pores, one or more than one bridge sheet or window formation on substrate; The mobile direction of heat transferring medium outside refrigerant pipe, the width of anterior bridge sheet of described fin or window is greater than the width of rear portion bridge sheet or window, and the quantity of anterior bridge sheet or window is less than the quantity of rear portion bridge sheet or window.
2. asymmetric slitted fin heat exchange of heat pipe according to claim 1 is characterized in that: the mobile direction of heat transferring medium outside refrigerant pipe, the adjacent width of substrate between adjacent bridge sheet or window equates or reduces.
3. asymmetric slitted fin heat exchange of heat pipe, described heat exchanger contains many refrigerant pipes by many rows to be formed with the vertical outer multiple row fin of described refrigerant pipe that tightly is enclosed within, and it is characterized in that: described fin comprises a row or offers the single fin that a plurality of cold-producing medium pores, one or more than one bridge sheet or window form more than the row on substrate; The heat transferring medium direction that flows outside refrigerant pipe, each is arranged between described fin, and the width of bridge sheet or window equates or reduces on the described fin of adjacent row, and the quantity of bridge sheet or window is along with increasing progressively gradually of heat exchanger row number increases.
4. asymmetric slitted fin heat exchange of heat pipe according to claim 3 is characterized in that: the heat transferring medium direction that flows outside refrigerant pipe, the width of arranging every row in the described fin equate or along with increasing progressively gradually of number of heat exchanger row successively decreases more.
5. asymmetric slitted fin heat exchange of heat pipe according to claim 3 is characterized in that: the mobile direction of heat transferring medium outside refrigerant pipe, in the described fin of every row, the width of adjacent described bridge sheet or window equates or reduces.
6. according to claim 3 or 4 or 5 described asymmetric slitted fin heats exchange of heat pipe, it is characterized in that: the mobile direction of heat transferring medium outside refrigerant pipe, each is arranged between described fin, and the width of substrate equates or along with increasing progressively gradually of number of heat exchanger row diminishes between adjacent bridge sheet or window.
7. according to claim 3 or 4 or 5 described asymmetric slitted fin heats exchange of heat pipe, it is characterized in that: the mobile direction of heat transferring medium outside refrigerant pipe, in the described fin of every row, the adjacent width of substrate between adjacent bridge sheet or window equates or reduces.
8. according to claim 3 or 4 or 5 described asymmetric slitted fin heats exchange of heat pipe, it is characterized in that: described fin is a monoblock type fin or combines for two or more single fins.
CNU200720054033XU 2007-07-12 2007-07-12 Antisymmetric slitting finned tube heat exchanger Expired - Lifetime CN201059904Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852568A (en) * 2010-06-13 2010-10-06 海信(山东)空调有限公司 Air-conditioning heat exchanger fins and heat exchanger
CN101871743A (en) * 2010-06-12 2010-10-27 海信(山东)空调有限公司 High-efficiency air-condition heat exchanger fin and heat exchanger
CN104949561A (en) * 2015-06-10 2015-09-30 海信(山东)空调有限公司 Fin applied to heat exchanger
CN106500185A (en) * 2016-12-09 2017-03-15 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
CN110726326A (en) * 2019-11-19 2020-01-24 广东美的暖通设备有限公司 Cooling fin for heat exchanger, cooling assembly and refrigeration equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871743A (en) * 2010-06-12 2010-10-27 海信(山东)空调有限公司 High-efficiency air-condition heat exchanger fin and heat exchanger
CN101852568A (en) * 2010-06-13 2010-10-06 海信(山东)空调有限公司 Air-conditioning heat exchanger fins and heat exchanger
CN104949561A (en) * 2015-06-10 2015-09-30 海信(山东)空调有限公司 Fin applied to heat exchanger
CN106500185A (en) * 2016-12-09 2017-03-15 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
CN110726326A (en) * 2019-11-19 2020-01-24 广东美的暖通设备有限公司 Cooling fin for heat exchanger, cooling assembly and refrigeration equipment

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Granted publication date: 20080514