CN201093910Y - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CN201093910Y
CN201093910Y CNU2007201202415U CN200720120241U CN201093910Y CN 201093910 Y CN201093910 Y CN 201093910Y CN U2007201202415 U CNU2007201202415 U CN U2007201202415U CN 200720120241 U CN200720120241 U CN 200720120241U CN 201093910 Y CN201093910 Y CN 201093910Y
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China
Prior art keywords
heat exchanger
heat exchange
fin
aluminium
heat
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Expired - Lifetime
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CNU2007201202415U
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Chinese (zh)
Inventor
张广全
江国模
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SHENZHEN SHANYUAN ELECTRIC APPLIANCE CO Ltd
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Individual
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Abstract

The utility model disclose a heat exchanger, which includes an aluminum main body which is provided with a heat exchanging medium channel for the flowing of the heat exchanging medium; fins used for exchanging heat are extended outwards on the surface. The heat exchanger of the technique proposal of the utility model has higher heat exchanging efficiency because the aluminum main body and fins are an integral structure and no additional combining thermal resistance exists between the fins and the aluminum main body. The method for making the heat exchanger of the technique proposal of the utility model has simple processing technique, which effectively ensures the consistency of the production quality, meanwhile avoids using the copper pipe of high price, and effectively reduces the cost.

Description

A kind of heat exchanger
Technical field
The utility model relates to a kind of heat exchanger, relates in particular to a kind of heat exchanger that is used as evaporimeter or condenser in refrigeration system.
Background technology
Heat exchanger is the vitals in refrigerator and the air-conditioner, and the change by state in heat exchanger of heat exchange medium absorbs or emits heat, to realize the transfer of heat.Heat exchanger such as air-conditioning comprises indoor heat exchanger (evaporimeter) and outdoor heat exchanger (condenser).Evaporimeter is the direct refrigeration device of refrigeration system, the low-pressure, liquid refrigerant evaporation of absorbing heat within it, thus the ambient air temperature is descended; The effect of condenser is that the heat that cold-producing medium absorbs in evaporimeter and compressor is sent in the outdoor air.
Its structure of traditional heat exchangers comprises copper pipe and fin as shown in Figure 1.Copper pipe is generally red copper and makes; Fin generally is to make with the aluminium flake of 0.1～0.2 millimeters thick (said herein aluminium comprises fine aluminium and aluminium alloy), and spacing of fin is 1.5～2.5 millimeters.Its processing technology is generally copper tube and puts the aluminium fin, and the copper tube that expands then is so that fin fixedly forms, and welding adopted or riveting process is also arranged with fin and copper pipe combination.Because this technology mode, have the extra thermal resistance that combines between fin and the copper pipe, and integral rigidity is poor, heat transfer property is bad, has influenced the raising of heat exchanger Energy Efficiency Ratio.In order to increase heat exchange area, scientific and technical personnel have developed corrugated fin and calking fin successively again, but laying dust fouling easily on this type of complex process and the fin makes that this type of technology is not well developed yet; The copper tube price is surging in recent years in addition, and more firm designers change the resolution of said structure.
At above-mentioned problem, development along with technology, people have designed the heat exchanger that the hollow aluminum pipe of a kind of usefulness replaces copper tube in order to reduce the cost of raw material, but still adopt combined process such as expansion or welding, through finding after the performance test because ductility, the compactness of aluminum pipe are bad, cause heat exchanger the phenomenon of leakage of refrigerant to occur, heat exchanger effectiveness obviously can not meet the demands simultaneously.
Summary of the invention
The purpose of this utility model is exactly for solving heat exchanger cost height in the prior art, processing technology complexity, problem that heat exchange efficiency is low, a kind of heat exchanger and preparation method thereof is provided, reducing the cost of raw material, simplified processing process, and improved heat exchange efficiency.
For achieving the above object, the technical solution adopted in the utility model is: a kind of heat exchanger, comprise aluminium matter main body, and be provided with heat exchange medium passage in the aluminium matter main body for the circulation of heat exchange medium; The surface stretches out and is useful on the fin that carries out exchange heat.
Further, fin is preferably on aluminium body and makes laminated structure by the backing-off cutting processing technology.
Wherein, the thickness of fin, height and spacing are set according to the size of heat exchange amount and windage.
Further improvement of the utility model is: heat exchanger bending becomes " s " shape, " c " shape or spirality.
The cross section of aluminium matter main body can be multiple shape, and its preferred cross section is a rectangle or trapezoidal, and described fin is positioned at two opposite external side faces of aluminium matter main body.
Of the present utility model further the improvement is: also comprise the gripper shoe that is used for fixing mounting heat exchanger, two of described aluminium body also is provided with and is used to be communicated with the interior heat exchange medium passage of aluminium body and the pipe joint of extraneous heat exchange media conduits.
The shape of cross section of described heat exchange medium passage is any one in circle, triangle, quadrangle, the polygon.
Described heat exchange medium passage is provided with a plurality of in an aluminium body.
Adopt the heat exchanger of technical solutions of the utility model, because aluminium body and fin are overall structure, do not have in the traditional heat exchangers between fin and aluminium body additionally in conjunction with thermal resistance, thereby overall thermal resistance reduces, and heat exchange efficiency improves.Adopt the heat exchanger manufacture method of technical solutions of the utility model, because fin is that backing-off cutting is made on the aluminium section bar that constitutes aluminium body, has simplified processing technology, can effectively guarantee the uniformity of product quality, avoided simultaneously using expensive copper tube, effectively reduced cost.Because heat exchange medium passage is to be formed by the aluminium extrusion molding, airtight performance is good, effectively avoids the leakage of heat exchange medium; Extrusion molding can be extruded needed commentaries on classics heat medium passage easily simultaneously.Owing to can after processing fin, heat exchanger bending be become required shape, compare and adopt the many prior aries that copper pipe is welded, there are not weld seam and solder joint, can effectively avoid the critical defect that the heat exchange medium is revealed in the heat exchanger.And as required with the heat exchanger of script strip, be bent into the different shape that needs, strengthened the convenience and the flexibility of using.
Description of drawings
Fig. 1 is the perspective view of existing copper tube sheet assemble;
Fig. 2 is the perspective view of the utility model embodiment one heat exchanger;
Fig. 3 is the perspective view of the utility model embodiment one heat exchanger after by bending;
Fig. 4 is the assembling schematic diagram of the heat exchanger of the utility model embodiment two band pipe joints;
Fig. 5 is the perspective view of the heat exchanger of the utility model embodiment two band pipe joints;
Fig. 6 is the heat exchanger perspective view of the utility model embodiment three band pipe joints and gripper shoe;
Fig. 7 is the heat exchanger schematic perspective view of the utility model embodiment three with another kind of form gripper shoe;
The heat exchanger perspective view that Fig. 8 is bent into " C " shape for the utility model embodiment four.
The specific embodiment
Embodiment one
The heat exchanger of present embodiment as shown in Figure 2, comprises the fin 3 of aluminium matter main body 1 and sheet.Be provided with the heat exchange medium passage 2 that flows for the heat exchange medium in the aluminium matter main body 1.
The passage of four equirotal circles is arranged in the heat exchanger aluminium matter main body 1 of present embodiment, be heat exchange medium passage 2.The cross sectional shape of heat exchange medium passage 2 also can be in triangle, square, quadrangle, the medium arbitrary shape of polygon one or more, in general adopt the more of circle or square cross-sectional shape, because the flow resistance minimum of circular cross-section, and the square area of section that can in the aluminium matter main body 1 of certain size, obtain maximum.Because aluminium matter main body 1 is to adopt to extrude or the process forming of stretch forming, in theory the heat exchange medium passage of various cross sectional shapes all is not difficult to create, but generally determines cross sectional shape, size and the number of heat exchange medium passage according to the size reasonable of the flow resistance of heat exchange medium and heat exchange amount.
Cross section in aluminium body 1 in the present embodiment is a rectangle, also can be for trapezoidal, and the upper and lower surface of main body 1 respectively has row's fin 3, and every fin 3 is rectangle, and each fin 3 is arranged on the upper and lower surface of aluminium body 1 uniformly.The shape and size of fin 3 can the time adjust in design according to the heat exchange needs, comprise spacing between thickness, height and the fin 3 etc.The heat exchange amount is big, and the just essential area of dissipation that increases increases the distance that Method for Area can strengthen the height of fin 3 and reduce 3 of fins, but just causes the increasing of windage like this.Common way is to find an equalization point to meet the demands.Rule of thumb when wind speed be 2.5m/s when following, fin 3 spacings keep 2.0～3.0mm; When wind speed is 2.5mm/s when above, spacing of fin keeps 1.0～2.0mm.
The heat exchanger of present embodiment, be a strip aluminium section bar at first, still elongated substantially (as shown in Figure 2) after processing fin 3, then as required by repeatedly bending, the final shape that needs that forms, for example heat exchanger is bent into " s " shape, " c " shape or spirality, can on the basis of the length that does not increase product, increases the heat exchange effect like this.Final " s " shape that forms of present embodiment as shown in Figure 3, " c " shape of formation is as shown in Figure 8.
In the present embodiment, according to the needs of heat exchange, the heat exchange medium passage 2 in the aluminium body 1 can also be one, or parallel two or three, even more than three.
Because aluminium body 1 generally is the aluminium section bar of stretching (perhaps extruding) moulding, its processing technology of the heat exchanger of present embodiment is: designing mould at first as required, stretch or extrude aluminium section bar with suitable cross-section, be provided with the heat exchange medium passage 2 that flows for the heat exchange medium in the aluminium section bar, the circular heat exchange medium passage 2 of four same diameters is arranged in the present embodiment.In addition, aluminium section bar has an outer surface to be designed to the machined surface of fin 3 at least, and in the present embodiment that two of aluminium section bars is relative, the face of broad is designed to be processed of fin 3, and the later stage will process some fins 3 on these two faces.
According to the preparation method of the heat exchanger of present embodiment, be by backing-off cutting technology is incorporated in the process of fin, preparation method may further comprise the steps:
A1, making aluminium matter main body 1: adopt the mode that stretches or extrude, form the aluminum pipe that has in it for the heat exchange medium passage 2 of heat exchange medium circulation.The cross sectional shape of the heat exchange medium passage 2 in the aluminium body 1 and number can be designed to the passage of a plurality of circles, square or other profiled-cross-section according to the size of the needs of heat exchanger size, exchange capability of heat and heat exchange medium flow and resistance.
B1, making fin; Use the processing method of backing-off cutting to go out fin 3 in the outer surface backing-off cutting of the aluminum pipe of described steps A 1 formation.
According to above making step, fin 3 is exactly to pass through gear milling lathe, slices or many batches of backing-off cutting are come out on two to be processed of aluminium matter main body 1 (for example aluminum pipe), thereby the aluminium body 1 of fin 3 and heat exchanger is an integral body, do not need combinations such as welding, expansion or riveted joint to fix, more do not use any binding agent,, help improving the overall thermal exchange efficiency of heat exchanger so do not exist additionally therebetween in conjunction with thermal resistance.Simultaneously, backing-off cutting technology can well guarantee the uniformity of 3 of each fins, also makes things convenient for automated production, improves working (machining) efficiency, cuts down finished cost.
Fin 3 is that blocks of backing-off cutting is come out in the present embodiment, but also can many batches of backing-off cuttings come out.And have dual mode like this, can accomplish that a working cycles backing-off cutting goes out a collection of fin 3, and be not a slice fin 3.Such as can be together with a plurality of aluminium body 1 secured in parallel for the treatment of backing-off cutting, by selecting for use and a plurality of perching knives for the treatment of the broad of backing-off cutting aluminium body width coupling, and the driving force of adjustment perching knife, just can in a working cycles, backing-off cutting go out a plurality of fins 3, promptly treat that at each sheet fin 3 is sentenced in backing-off cutting on the backing-off cutting aluminium body 1, to improve the efficient of backing-off cutting processing greatly.Also may there be another kind of situation, promptly treats to have on the backing-off cutting aluminium body 1 a plurality of backing-off cutting machined surfaces for the treatment of, in like manner at one, as long as select suitable perching knife for use, adjust the driving force of perching knife, also can in a working cycles, shovel out a collection of fin 3, promptly on each to be processed, shovel out a slice fin 3.In certain a plurality of generation,, machined surface will satisfy certain requirement, a plurality ofly treated that for machined surface be parallel and the plane of coplane such as this.
C1, push away wing: adjust the surperficial in a certain angle of fin 3 and aluminium body 1 as required.The fin 3 that backing-off cutting is just come out may itself and aluminium body 1 angle do not meet the demands, can increase an operation that pushes away wing, make that fin 3 and aluminium body 1 are angled.Push away wing and can adopt special equipment and special operation, also can in the backing-off cutting fin, push away wing.Present embodiment adopts a push pedal that is fixed on perching knife cutter hub the place ahead, and in each backing-off cutting fin, the fin that a last working cycles backing-off cutting is gone out pushes away wing.Push pedal can be adjusted angle through design, so that fin can be pushed into the angle that needs.
D1, backing-off cutting is gone out the shape that the heat exchanger bending of fin (3) become to need.The heat exchanger that backing-off cutting goes out fin generally is a strip, because aluminium has certain bending, at last as required, with making the strip heat exchanger bending of fin 3, forms needed shape, such as the C type, and S type or spirality etc.
Embodiment two
As shown in Figure 4, the difference of present embodiment and embodiment one is, for convenience of being connected of heat exchange medium passage 2 in the aluminium body 1 and heat exchange with outside medium, is provided with pipe joint 4 at the two ends of heat exchanger, and its assembling schematic diagram as shown in Figure 5.Can adopt between pipe joint 4 and the aluminium body 1 to be threaded, also can adopt welding to wait other common connected mode.
Embodiment three
As shown in Figure 6, present embodiment is on the basis of embodiment two, is provided with gripper shoe 5 in a side of heat exchanger.The purpose of setting up gripper shoe 5 is fixed installations of heat exchanger for convenience, helps guaranteeing the integral installation size of heat exchanger.
Shown in Figure 7 also is the heat exchanger perspective view that comprises pipe joint 4 and gripper shoe 5, is that with the difference of Fig. 6 gripper shoe 5 is two gripper shoes 5 of another version.These two gripper shoes 5 are positioned at the two ends of heat exchanger, also play the fixed installation that makes things convenient for heat exchanger, help guaranteeing the effect of the integral installation size of heat exchanger, but because avoided blocking of heat exchanging device middle part fin 3, thereby the heat exchanger whole structure is better.
Embodiment four
As shown in Figure 8, the heat exchanger of present embodiment after the good fin 3 of backing-off cutting, bends to the strip heat exchanger " C " shape as shown in Figure 8 as required, to strengthen application flexibility.Certainly, also can be bent into other different shape as required.Present embodiment also is provided with pipe joint 4 at the heat exchanger two ends, is connected with extraneous heat exchange medium passage with convenient.
The utility model has omitted copper tube because heat exchange fin and heat exchange medium passage adopt integral structure, because copper tube shared proportion in existing heat exchanger cost is very big, the cost of raw material thus can greatly descend.And the mode of utilizing extrusion molding obtains forming the aluminum pipe of aluminium body 1, heat exchange medium passage is strengthened and sealing fully, the serious problems that the heat exchange medium of having avoided traditional heat exchangers often to occur leaks.With respect to prior art, owing to cancelled copper tube, adopted integral structure, so need not wear expand tube operation after the fin earlier, fin and heat exchange human body itself are exactly an integral body simultaneously, have improved heat exchanger effectiveness like this and have also simplified simultaneously processing technology.Because can be after fin machines at whole heat exchanger, be bent into required form, many copper pipes of the available technology adopting of comparing needed shape that is welded does not exist weld seam and solder joint, has avoided that the critical defect that condensing agent is revealed appears in heat exchanger in the prior art.
Adopt the heat exchanger of technical solutions of the utility model, range of application is quite extensive; Not only can be used in the products such as traditional refrigerator, air-conditioning, also can be applicable in the water tank heat exchanger of large-scale central air-conditioning in the water-cooled medium and automobile industry.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (1)

1. a heat exchanger comprises aluminium matter main body (1), is provided with the heat exchange medium passage (2) for the circulation of heat exchange medium in the described aluminium matter main body; It is characterized in that described aluminium matter main body (1) surface stretches out and is useful on the fin (3) that carries out exchange heat.
A kind of heat exchanger according to claim 1 is characterized in that, the laminated structure of described fin (3) for making by the backing-off cutting processing technology.
A kind of heat exchanger according to claim 2 is characterized in that, heat exchanger bending becomes " s " shape, " c " shape or spirality.
According to each described a kind of heat exchanger in the claim 1 to 3, it is characterized in that the cross section of described aluminium matter main body (1) is a rectangle or trapezoidal, described fin (3) is positioned at two opposite external side faces of aluminium matter main body (1).
According to each described a kind of heat exchanger in the claim 1 to 3, it is characterized in that, also comprise the gripper shoe (5) that is used for fixing mounting heat exchanger, two of described aluminium body (1) also is provided with and is used to be communicated with the interior heat exchange medium passage (2) of aluminium body (1) and the pipe joint (4) of extraneous heat exchange media conduits.
A kind of heat exchanger according to claim 4, it is characterized in that, also comprise the gripper shoe (5) that is used for fixing mounting heat exchanger, two of described aluminium body (1) also is provided with and is used to be communicated with the interior heat exchange medium passage (2) of aluminium body (1) and the pipe joint (4) of extraneous heat exchange media conduits.
According to each described a kind of heat exchanger in the claim 1 to 3, it is characterized in that the shape of cross section of described heat exchange medium passage (2) is any one in circle, triangle, quadrangle, the polygon.
A kind of heat exchanger according to claim 4 is characterized in that, the shape of cross section of described heat exchange medium passage (2) is any one in circle, triangle, quadrangle, the polygon.
According to each described a kind of heat exchanger in the claim 1 to 3, it is characterized in that described heat exchange medium passage (2) is provided with a plurality of in an aluminium body (1).
CNU2007201202415U 2007-05-22 2007-05-22 Heat exchanger Expired - Lifetime CN201093910Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201202415U CN201093910Y (en) 2007-05-22 2007-05-22 Heat exchanger

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Application Number Priority Date Filing Date Title
CNU2007201202415U CN201093910Y (en) 2007-05-22 2007-05-22 Heat exchanger

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605942A (en) * 2015-12-29 2016-05-25 江西鑫田车业有限公司 Heat dissipater
CN105823346A (en) * 2015-01-04 2016-08-03 程长青 Aluminium section heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105823346A (en) * 2015-01-04 2016-08-03 程长青 Aluminium section heat exchanger
CN105605942A (en) * 2015-12-29 2016-05-25 江西鑫田车业有限公司 Heat dissipater

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHENZHEN SHANYUAN ELECTRICAL APPLIANCE CO., LTD.

Free format text: FORMER OWNER: ZHANG GUANGQUAN

Effective date: 20100416

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 518055 XILI FULIN SHANYUAN INDUSTRIAL PARK, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518055 SHANYUAN INDUSTRIAL PARK, FUGUANG VILLAGE, XILI TOWN, NANSHAN DISTRICT, SHENZHEN CITY

TR01 Transfer of patent right

Effective date of registration: 20100416

Address after: 518055 Shenzhen Nanshan District City Xili town Fuguang Village Hill source Industrial Park

Patentee after: Shenzhen Shanyuan Electric Appliance Co., Ltd.

Address before: 518055 Guangdong city of Shenzhen province Nanshan District Fulin Mountain Industrial Park Xili source

Patentee before: Zhang Guangquan

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20080730