CN1063544C - Method for production of star-type heat-exchanging fin and apparatus thereof - Google Patents
Method for production of star-type heat-exchanging fin and apparatus thereof Download PDFInfo
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- CN1063544C CN1063544C CN 95108627 CN95108627A CN1063544C CN 1063544 C CN1063544 C CN 1063544C CN 95108627 CN95108627 CN 95108627 CN 95108627 A CN95108627 A CN 95108627A CN 1063544 C CN1063544 C CN 1063544C
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- fin
- type heat
- star
- protruding lip
- exchanging
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Abstract
The present invention relates to a method for producing a star-type heat-exchanging fin and a device thereof. The producing method orderly comprises a plurality of closed convex lips on a body of the fin, and the closed surface of each convex lip is cut into a plurality of separating sheets. All the separating sheets are outward pushed to form engaging holes, and the separating sheets of each convex lip are outward bent and extend to form auxiliary fins. Holes are not required to be punched on the body of the fin in manufacture, and the generation of waste material is prevented. The device of the star-type heat-exchanging fin comprises the fin body and a plurality of convex lips formed on the body of the fin. Each convex lip is provided with the engaging holes, the circumference of the engaging holes is outward bent and extends the auxiliary fins which are composed of the separating sheets in a separating shape, and the heat conveying efficiency can be increased.
Description
The present invention relates to a kind of manufacture method and device thereof of heat-exchanging fin, particularly relate to a kind of generation of eliminating waste material in the processing procedure, and can fill part and utilize manufactured materials, with the manufacture method and the device thereof of the star-type heat-exchanging fin that improves hot transfer efficiency.
General employed coil-type heat exchanger in the hot biography of air-conditioning system or other system, as the water coil pipe, steam coil, or the refrigerant coil pipe etc., use the metal heat-exchanging fin to be attached to outside the metal tube mostly, improve hot transfer efficiency to increase pipeline and outside air contact area, this metal heat-exchanging fin (or claiming fin) can be plane formula, wave or many seams formula, when circulating high temperature or cryogen in the metal tube, via tube wall and outer appended fin thereof, heat is sent to contiguous air, to reach the purpose of heat exchange, as shown in Figure 1, it is the stereogram of coil-type heat exchanger in the past, this heat exchanger 1 comprises a pipeline 10 that is the coiled pipe shape, and most be fixed intervals and be embedded fin 12 on this pipeline 10 external annulus, this fin 12 is a plane formula, and with the high metal of capacity of heat transmission, made as materials such as aluminium or copper, because heat conducting speed and surface area have very confidential relation, therefore increase the surface area of pipeline 10 integral body by this fin 12, make the refrigerant that flows in the pipeline 10 and manage outer fin 12 via tube wall, improve the efficient of carrying out exchange heat with contiguous air, reach the effect of quick heat radiating or heat absorption.But, in order to increase the surface area of pipeline 10 integral body, improve hot transfer efficiency, and must increase the quantity of fin 12, the density of 12 of the outer fins of pipeline 10 is relatively improved, cause the resistance that air flows through fin 12 to become big, reduce hot transfer efficiency on the contrary.
As shown in Figure 2, be the punching schematic diagram of the fin of coil-type heat exchanger in the past, in the past in the manufacture process of coil-type heat exchanger, no matter use the metal heat-exchanging fin of which kind of pattern, at first, must go out most on this fin 12 with punch die utensil (figure does not show) can be for wearing the conjugate foramen 100 that closes, but when fin 12 is carried out the punching operation, can produce many waste materials 104 as shown in FIG., except the waste that causes material cost, the surface area of fin 12 reduced, reduced on the contrary fin 12 original areas the hot transfer efficiency that should possess.
In addition, as shown in Figure 3, be the shaping schematic view of the fin of coil-type heat exchanger in the past, and cooperate shown in Figure 2, after going out most conjugate foramens 100 on the fin 12, become a protruding lip 102 with the punch die utensil in each conjugate foramen 100 periphery punching out again, and then pipeline 10 (shown in imaginary line among Fig. 3) is placed through in the conjugate foramen 100, and utilize the expander technology with pipeline 10 expanders, pipeline 10 external diameters can be enlarged and closely combine, so that pipeline 10 firmly crosses between fin 12 with protruding lip 102.But,, go out most conjugate foramens 100 because the punch die utensil is the mode that directly runs through fin 12 with punching press with the punch die utensil, therefore, meeting be touched with master mold and be produced abrasion, causes the punch die utensil to damage because of the touching abrasion between mould, and then improves the probability of fault.
In sum, the manufacture method of the fin of heat exchanger and structure thereof have following shortcoming in the past:
(1) waste material and cost: necessary earlier at fin surface punching out conjugate foramen in the process of making heat-exchanging fin, and cause many waste materials, this waste material also forms the waste of material cost except increasing the inconvenience on handling.
(2) hot transfer efficiency is limited: the manufacture process of fin must be carried out the punching operation on its surface, causes the whole surface area of fin to reduce, and the hot transfer efficiency that the original area of fin is had reduces, and has limited the hot transfer efficiency that each fin can be brought into play.
(3) density is too high: because of thermal conduction rate is that increase along with surface area increases, pipeline was in order to improve whole hot transfer efficiency in the past, and the quantity of increase fin, cause the interval between fin relatively to diminish, density uprises, the resistance that air flows through fin is increased, influenced the pipeline inner fluid on the contrary and carried out the operation of exchange heat, and reduced hot transfer efficiency with contiguous air.
(4) the fault probability of punch die utensil improves: because of the punch die utensil be directly on fin punching press run through conjugate foramen, cause punch die utensil and master mold to produce to touch and wear and tear, and cause the damage of punch die utensil, and then make the fault probability raising of punch die utensil.
Main purpose of the present invention is providing a kind of manufacture method of star-type heat-exchanging fin, can fill part and utilize raw material, eliminates the generation of waste material in the processing procedure.
Another object of the present invention can improve hot transfer efficiency in that a kind of star-type heat-exchanging fin device is provided.
Technical scheme of the present invention is as described below:
A kind of manufacture method of star-type heat-exchanging fin is characterized in that:
This manufacture method is included in the protruding lip forming step that forms most the protruding lips of closed on the fin body in regular turn, on the sealing surface of each protruding lip, cut into the cutting step of most shims, all shims on each protruding lip are extrapolated and form the conjugate foramen forming step of conjugate foramen, and all shims on each protruding lip are prolonged and mold the auxiliary rectangular fin forming step of the auxiliary rectangular fin that is attached at the conjugate foramen periphery to excurvation.
The manufacture method of described star-type heat-exchanging fin is characterized in that:
Before this protruding lip forming step, desire the protruding lip of moulding place at this fin body and form the depressed area.
The manufacture method of described star-type heat-exchanging fin is characterized in that:
This cutting step is that the radial direction along the sealing surface of protruding lip top once cuts most cuttves, makes the cutting formed shim in back shape triangular in shape.
A kind of star-type heat-exchanging fin device comprises a fin body, and most the protruding lips that are formed on this fin body, and each protruding lip has a conjugate foramen that runs through this fin body, it is characterized in that:
The conjugate foramen periphery of each protruding lip forms an auxiliary rectangular fin of being made up of most separated shims to the excurvation court of a feudal ruler.
Described star-type heat-exchanging fin device is characterized in that:
Each auxiliary rectangular fin does not contact with this fin body.
Described star-type heat-exchanging fin device is characterized in that:
Be formed with the depressed area in this protruding lip place on this fin body.
The invention is characterized in: in the manufacture process of this star-type heat-exchanging fin, forming materials in the conjugate foramen periphery utilization of fin body itself goes out auxiliary rectangular fin, can in processing procedure, eliminate the generation of waste material, so that the material of fin body utilizes maturely, and improve the hot transfer efficiency of fin body by auxiliary rectangular fin.
As shown in the above description, the manufacture method of star-type heat-exchanging fin of the present invention and device thereof have following advantage and effect:
(1) generation of elimination waste material: Gong the pipeline that the present invention forms places engaging hole engaged, is to form with the cutting of punch die cutter, does not need directly to carry out on the fin body punching operation, therefore can not produce any waste material, reduces the waste of material cost.
(2) improve hot transfer efficiency: the present invention be utilize the punch die utensil the fin body go out the protruding lip of most closeds on the zone of planning in advance, on the sealing surface of protruding lip, cooperate cutting and the technology that flattens again, form most with correspondence and can place the conjugate foramen that combines with pipeline, the conjugate foramen periphery prolongs into auxiliary rectangular fin to excurvation, this auxiliary rectangular fin of mat contacts with pipeline, also can provide heat to pass effect, and improve the hot transfer efficiency of integral disc tube type heat exchanger.Simultaneously, at coil-type heat exchanger commonly used, when using 3/8 inch pipe of diameter, if with direct method punching out conjugate foramen on fin of punching in the past, then the material that each fin lost accounts for 14% of whole surface area, when using 1/2 inch pipe of diameter, then the material that each fin lost accounts for 17% of whole surface area, but, the present invention utilizes the predetermined originally material that washes away to make auxiliary rectangular fin, under the condition that does not increase material cost, and can be according to increasing hot transfer efficiency in proportion, when using 3/8 inch pipe of diameter, hot transfer efficiency 14% can be increased, when using 1/2 inch pipe of diameter, hot transfer efficiency 17% can be increased, because of each fin can keep the complete of whole surface area, can fill part the original area of performance the hot transfer efficiency that should have and can not being restricted.
(3) density reduces: the hot transfer efficiency that can improve original fin because of auxiliary rectangular fin, therefore reaching under the situation of identical hot transfer efficiency, can reduce the coil-type heat exchanger interior needed fin number of unit are originally, fin density also relatively reduces, the resistance that is caused when ventilating fin reduces, and helps the application of coil-type heat exchanger.
(4) fault rate of punch die utensil reduces: form the action that does not have direct punching in the manufacture process of conjugate foramen because of the present invention, therefore the punch die utensil can be not directly and mould touch, can reduce the degree of the abrasion damage of punch die utensil effectively, and then reduce its fault probability.
In sum, the manufacture method of star-type heat-exchanging fin of the present invention and device thereof have the generation of eliminating waste material in the processing procedure really, and utilize manufactured materials because of filling part, when making the present invention be installed on the coil-type heat exchanger, can improve the hot transfer efficiency of heat exchanger effectively.
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is the stereogram of coil-type heat exchanger in the past.
Fig. 2 is the punching schematic diagram of the fin of coil-type heat exchanger in the past.
Fig. 3 is the shaping schematic view of the fin of coil-type heat exchanger in the past.
Fig. 4 is the action flow chart of the manufacture method of preferred embodiment of the present invention.
Fig. 5 is the view after the protruding lip forming step moulding of preferred embodiment of the present invention.
Fig. 6 is the view after the cutting step moulding of preferred embodiment of the present invention.
Fig. 7 is the view after the conjugate foramen forming step moulding of preferred embodiment of the present invention.
Fig. 8 is the view after the auxiliary rectangular fin forming step moulding of preferred embodiment of the present invention.
Fig. 9 is preferred embodiment of the present invention and cutaway view after pipeline engages.
Figure 10 is another preferred embodiment of the present invention and cutaway view after pipeline engages.
As shown in Figure 4, the manufacture method of preferred embodiment of the present invention is included in the protruding lip forming step that forms most the protruding lips of closed on the fin body in regular turn, on the sealing surface of each protruding lip, cut into the cutting step of several shims, all shims on each protruding lip are extrapolated and form the conjugate foramen forming step of conjugate foramen, and all shims on each protruding lip are prolonged and mold the auxiliary rectangular fin forming step of the auxiliary rectangular fin that is attached at the conjugate foramen periphery to excurvation.
As shown in Figure 5, this protruding lip forming step is to cook up earlier the zone that pipeline is worn on fin body 20, utilize the punch die utensil to rush to summit out respectively on the zone of appointment again and be the protruding lip 202 of closed, just the end face at each protruding lip 202 is formed with a sealing surface 200.
As shown in Figure 6, this cutting step is to utilize the punch die cutter on the sealing surface 200 of each protruding lip 202, once cuts most cuttves along radial direction, and forms most shims 204 roughly triangular in shape on this sealing surface 200.
As shown in Figure 7, this conjugate foramen forming step is that all shims 204 that take shape on each protruding lip 202 are upwards released by interior, and in the middle of each protruding lip 202, form a conjugate foramen 206, and make each shim 204 be erected in the periphery of corresponding each conjugate foramen 206.
As shown in Figure 8, this auxiliary rectangular fin forming step is that all shims 204 that will be erected in each conjugate foramen 206 periphery prolong auxiliary rectangular fin 3 of formation to excurvation again, and this auxiliary rectangular fin 3 is not contacted with original fin body 20, just finished the manufacture process of present embodiment.Because each auxiliary rectangular fin 3 is made up of the shim 204 of most triangles, it is star-shaped that each auxiliary rectangular fin 3 all is similar to, and form most star-shaped auxiliary rectangular fins 3 on the fin body 20, and therefore, the inventor is called star-type heat-exchanging fin.
As shown in Figure 8, the fin device of preferred embodiment of the present invention comprises a fin body 20, and most protruding lips 202 that are formed on the fin body 20, each protruding lip 202 respectively has a conjugate foramen 206 that runs through fin body 20, each conjugate foramen 206 periphery prolongs to excurvation and forms an auxiliary rectangular fin 3 of being made up of most separated shims 204, and each auxiliary rectangular fin 3 does not contact with this fin body 20.
Shown in Fig. 8,9, this fin body 20 can place pipeline 4 in the conjugate foramen 206, and utilize the expander technology with pipeline 4 expanders, the external diameter of pipeline 4 can be enlarged and closely combine with each protruding lip 202, be disposed on the pipeline 4 so that fin body 20 firmly crosses, be assembled into the coil-type heat exchanger.So, the present invention does not need directly to carry out the punching operation on fin body 20 in manufacture process, so can eliminate the generation of waste material, simultaneously, utilize cutting and the technology that flattens, flatten the periphery that extension is located at conjugate foramen 206 with originally forming the material that conjugate foramen 206 must punching press falls, to form auxiliary rectangular fin 3, except having the characteristics of saving material, this auxiliary rectangular fin 3 contacts with pipeline 4, also can provide heat to pass effect, make original fin body 20 fill part its whole surface area of performance the hot transfer efficiency that should have, so can improve the hot transfer efficiency of integral disc tube type heat exchanger.And, the hot transfer efficiency that this auxiliary rectangular fin 3 of mat is increased, can reduce coil-type heat exchanger interior needed fin body 20 quantity of unit are originally, pass effect and reach identical heat, so can reduce the density of 20 of fin bodies, the resistance that is caused during with reduction circulation of air fin body 20.In addition because the manufacture process of present embodiment is not directly carried out the action of punching on fin body 20, so the punch die utensil can be not directly and mould touch, can reduce the degree that the abrasion of punch die utensil damage effectively, and then reduce its fault probability.
As shown in figure 10, be another preferred embodiment of the present invention and cutaway view after pipeline engages, fin device and the foregoing description of present embodiment are roughly the same, also comprise fin body 50, and most protruding lips 502 that are formed on the fin body 50, and each protruding lip 502 has a conjugate foramen 506 that runs through fin body 50, and the periphery of each conjugate foramen 506 prolongs to excurvation and forms an auxiliary rectangular fin 6, its difference be in: the regional peripheral region that pipeline 7 is worn of cooking up is pre-formed a depressed area 508 on this fin body 50, after auxiliary rectangular fin 6 moulding, can not contact with original fin body 50.The design of mat present embodiment can be reached the elimination waste material that the foregoing description has and produces, improves the effect such as hot transfer efficiency except same, and another different structure that change more is provided, and the present invention be can be applicable on the various heat-exchanging fin.
Claims (6)
1, a kind of manufacture method of star-type heat-exchanging fin is characterized in that:
This manufacture method is included in the protruding lip forming step that forms most the protruding lips of closed on the fin body in regular turn, on the sealing surface of each protruding lip, cut into the cutting step of most shims, all shims on each protruding lip are extrapolated and form the conjugate foramen forming step of conjugate foramen, and all shims on each protruding lip are prolonged and mold the auxiliary rectangular fin forming step of the auxiliary rectangular fin that is attached at the conjugate foramen periphery to excurvation.
2, the manufacture method of star-type heat-exchanging fin as claimed in claim 1 is characterized in that:
Before this protruding lip forming step, desire the protruding lip of moulding place at this fin body and form the depressed area.
3, the manufacture method of star-type heat-exchanging fin as claimed in claim 1 is characterized in that:
This cutting step is that the radial direction along the sealing surface of protruding lip top once cuts most cuttves, makes the cutting formed shim in back shape triangular in shape.
4, a kind of star-type heat-exchanging fin device comprises a fin body, and most the protruding lips that are formed on this fin body, and each protruding lip has a conjugate foramen that runs through this fin body, it is characterized in that:
The conjugate foramen periphery of each protruding lip prolongs to excurvation and forms an auxiliary rectangular fin of being made up of most separated shims.
5, star-type heat-exchanging fin device as claimed in claim 4 is characterized in that:
Each auxiliary rectangular fin does not contact with this fin body.
6, star-type heat-exchanging fin device as claimed in claim 4 is characterized in that:
Be formed with the depressed area in this protruding lip place on this fin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95108627 CN1063544C (en) | 1995-08-01 | 1995-08-01 | Method for production of star-type heat-exchanging fin and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95108627 CN1063544C (en) | 1995-08-01 | 1995-08-01 | Method for production of star-type heat-exchanging fin and apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1142044A CN1142044A (en) | 1997-02-05 |
| CN1063544C true CN1063544C (en) | 2001-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95108627 Expired - Fee Related CN1063544C (en) | 1995-08-01 | 1995-08-01 | Method for production of star-type heat-exchanging fin and apparatus thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1063544C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5988177B2 (en) * | 2011-11-25 | 2016-09-07 | パナソニックＩｐマネジメント株式会社 | Finned tube heat exchanger |
-
1995
- 1995-08-01 CN CN 95108627 patent/CN1063544C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1142044A (en) | 1997-02-05 |
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