CN204064080U - A kind of Novel internal thread heat-exchange tube - Google Patents
A kind of Novel internal thread heat-exchange tube Download PDFInfo
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- CN204064080U CN204064080U CN201420423605.7U CN201420423605U CN204064080U CN 204064080 U CN204064080 U CN 204064080U CN 201420423605 U CN201420423605 U CN 201420423605U CN 204064080 U CN204064080 U CN 204064080U
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Abstract
The utility model relates to a kind of Novel internal thread heat-exchange tube, and it comprises metal tube, and the axis direction along described metal tube is provided with welded seam; Be respectively equipped with muscle in the both sides of described welded seam, described muscle comprises the first muscle and the second muscle; Between described first muscle and the second muscle, be provided with textured region, described textured region is provided with the double wedge of many polyline shapeds; One end of double wedge described at least one is connected with described first muscle, and the other end is connected with described second muscle.The beneficial effects of the utility model are: done the measure that the edges at two ends preventing from being with material produces wave transformation, the height dimension of double wedge and welding performance were all further improved than former product.In this case, the discharge opeing performance can improving the tooth tip of double wedge makes liquid coolant produce eddy current effect at Bottomhole pressure, and the effect that turbulent flow occurs, and has the high heat exchange performance in the past not available for common profile of tooth riffled tube.
Description
Technical field
The utility model relates to a kind of heat-exchange tube, particularly relates to a kind of Novel internal thread heat-exchange tube.
Background technology
For the requirement to the power saving of air-conditioner series products, energy-conservation, lightweight, miniaturization and Montreal Convention, need to reduce fluorine Lyons and harmful fluorine-containing thing consumption, the change of working medium will cause air-conditioner heat exchanger effectiveness to decline, for this reason, one of countermeasure taked is exactly air-conditioning pipe---the riffled tube using higher heat exchange performance.This inner screw thread copper pipe, heat transfer area increases, and effectively can promote turbulent flow, improves heat exchanger effectiveness.According to data introduction: this kind of internal thread pipe has realized 5 times to the high heat exchanger effectiveness of smooth tubes, therefore, becomes various countries and unexpectedly develops mutually and the new material greatly developed.In general, the mode of production of this type of riffled tube has extruding and high-frequency welding two kinds, and ratio-frequency welded tube is owing to there being following advantage: (1) heat exchanger effectiveness is under the same conditions because the improvement of profile of tooth is higher than extruded tube by 50%.(2) without oil processing, without the need to cleaning before assembling, environmental pollution is little.(3) cross sectional shape (shape of cross section of pipe can be oval) of the geometry of internal thread tooth and cast is versatile and flexible, and be easy to processing, can meet multiple requirement, wall thickness is little simultaneously.(4) production efficiency is high, can reach 200m/min, and pressing drawing pipe is generally 70m/min, and is that people accept extensively.
An existing utility model patent, its application number is 201220168016.X, discloses a kind of heat exchange internal thread aluminium pipe, aluminum pipe inner surface is covered with screw thread, the tooth profile parameter of described screw thread is: helical angle is 0 ~ 30 °, and addendum angle is 30 ~ 60 °, and tooth depth is 0.08 ~ 0.25mm.This utility model adopts metallic aluminium to make, and greatly reduces the manufacturing cost of air-condition heat exchanger, reduces metal consumption, and with aluminum fin-stock outside aluminum pipe, there is not potential difference between aluminium and aluminium, electrochemical corrosion can not occur, ensure that the heat exchange efficiency of air-conditioning, reach green, energy-conservation effect.But this utility model structure is simple, and insufficient strength, the turbulent poor effect of the refrigerant flowed in heat-exchange tube, rate of heat exchange is lower.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Novel internal thread heat-exchange tube, solves the deficiencies in the prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of Novel internal thread heat-exchange tube, and it comprises metal tube, and the axis direction on the inwall of described metal tube and along described metal tube is provided with welded seam; The inwall of described metal tube is respectively equipped with muscle in the both sides of described welded seam, and described muscle comprises the first muscle and the second muscle, and described first muscle is arranged on the side of described welded seam, described second muscle is arranged on the opposite side of described welded seam; Described first muscle and the second muscle all parallel with described welded seam; The inwall of described metal tube is provided with textured region between described first muscle and the second muscle, and described textured region is provided with the double wedge of many polyline shapeds; One end of double wedge described at least one is connected with described first muscle, and the other end is connected with described second muscle.
The beneficial effects of the utility model are: the measure producing wave transformation in the utility model owing to having done the edges at two ends preventing from being with material, makes the height dimension of double wedge and welding performance all further be improved than former product.In this case, the discharge opeing performance can improving the tooth tip of double wedge makes liquid coolant produce eddy current effect at Bottomhole pressure, and the effect that turbulent flow occurs, and has the high heat exchange performance in the past not available for common profile of tooth riffled tube.
Accompanying drawing explanation
Fig. 1 is a kind of sectional view of Novel internal thread heat-exchange tube;
Fig. 2 is the partial enlarged view of Fig. 1;
Fig. 3 is a kind of expansion view of Novel internal thread heat-exchange tube V-shape double wedge;
Fig. 4 is for shown in Fig. 3, and the Internal Screw Thread Heat Exchange Pipes of intersection tooth with multiple inter-tooth slots;
Fig. 5 is a kind of expansion view of Novel internal thread heat-exchange tube W word shape double wedge;
Fig. 6 is another kind of first area in Fig. 5, second area, the 3rd region exhibition division schematic diagram;
Fig. 7 is a kind of expansion view of Novel internal thread heat-exchange tube VVV word shape double wedge.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, be a kind of Novel internal thread heat-exchange tube sectional view, it comprises metal tube 001, and the axis direction on the inwall of described metal tube 001 and along described metal tube 001 is provided with welded seam 002; The inwall of described metal tube 001 is respectively equipped with muscle in the both sides of described welded seam 002, namely described muscle comprises the first muscle 003 and the second muscle 004, described first muscle 003 is arranged on the side of described welded seam 002, and described second muscle 004 is arranged on the opposite side of described welded seam 002; Described first muscle 003 and the second muscle 004 all parallel with described welded seam 002.On the inwall of described metal tube 001, and (for a pipe between described first muscle 003 and the second muscle 004, two regions are had between described first muscle 003 and the second muscle 004, but this local referring to does not have the region of described welded seam 002) be provided with textured region, the double wedge 005 of many polyline shapeds (can be formed one group by the double wedge 005 that described textured region is provided with many polyline shapeds, form many groups, double wedge 005 structure often organized is identical), described double wedge 005 can be V-shape (as shown in Figure 3), W word shape (as shown in Figure 5), VVV word shape (as shown in Figure 7), the present embodiment double wedge 005 is V-shape.
As shown in Figure 4, each described double wedge 005 is provided with multiple inter-tooth slots 009, and the utility model adopts and be provided with multiple inter-tooth slots 009 on the double wedge 005 of V-shape.Also multiple inter-tooth slots 009 can be provided with on W word shape, VVV word shape double wedge 005.
As shown in Figure 2 and Figure 3, between described welded seam 002 and described first muscle 003, be provided with the first groove 007, between described welded seam 002 and described second muscle 004, be provided with the second groove 008; Between two adjacent described double wedges 005, be provided with broken line groove 006, described broken line groove 006 is positioned at described textured region.
As shown in Figure 1, Figure 3, described textured region comprises first area 02, second area 03, the 3rd area 04 (in the utility model: described first area 02 is near described first muscle 003, described 3rd area 04, near described second muscle 004, is that a name is as limiting here.Close described second muscle 004 also can be described first area 02, also can be described 3rd area 04 near described first muscle 003).Described second area 03 is arranged between described first area 02 and described 3rd area 04.
As shown in Figure 5, when double wedge 005 adopts W word shape, the division of first area 02, second area 03, the 3rd area 04 enters shape with the turning point of double wedge 005 to divide, and this conveniently processes, but do not limit to this division, also can divide as shown in Figure 6.
As shown in Figure 3, for the expansion view that a kind of Novel internal thread heat-exchange tube of the present utility model is cut off from second area 03, the two ends of double wedge 005 described at least one are (in the utility model: one end of described double wedge 005 near described first muscle 003, and is connected with described first muscle 003; The other end of described double wedge 005 is near described second muscle 004, and be connected with described second muscle 004) be connected with described muscle respectively, conveniently can process like this, band material is being rolled in tooth technique and can produce the trend of wave transformation in inhibition zone material edge better.The utility model is preferred: described in every bar, one end of double wedge 005 is connected with described first muscle 003, and the other end is connected with described second muscle 004.
As shown in Figure 2, the distance 01 between the center line of described first muscle 003 and the center line of the second muscle 004 is 2% to 5% of the all-round length of inner peripheral surface of described metal tube 001; Preferably 3% to 4%.If in 2% to 5% scope, can not only effectively prevent band material from adding man-hour, its edge generation wave transformation, and described muscle also can get a promotion to the stiffening effect around weld zone.
Relative to the amount that the inner surface of described metal tube 001 protrudes, described first muscle 003 and the second muscle 004 are set as that 10% to 80% of the amount that in second area 03, double wedge 005 protrudes relative to the inner surface of described metal tube 001 is more suitable; Preferably 30% to 50%.In 10% to 80% scope, described muscle is when tube enlarging operation, and the possibility colliding the swollen head of expander reduces, and the stiffening effect of described muscle also can give full play to.
The circumferential width of described first area 02 adds that the circumferential width of described second area 03 is 20% to 50% of the all-round length of inner peripheral surface of described metal tube 001; Preferably 30% to 40%.If in 20% to 50% scope, can prevent to chap from described welded seam 002 surrounding at first in enlarge test.Preferred: the circumferential width of described first area 02 is equal with the circumferential width of described second area 03.
As shown in Figure 1, Figure 2, Figure 3 shows, the height 05 of the described double wedge 005 in described second area 03 remains unchanged.The height 06 of the described double wedge 005 in described first area 02 all reduces along with the minimizing of the distance between described first muscle 003; The height 07 of the described double wedge 005 in described 3rd area 04 all reduces along with the minimizing of the distance between described second muscle 004.The utility model is preferred: described double wedge 005 and the height of the junction of described first muscle 003 equal the height of described first muscle 003, the height of the junction of described double wedge 005 and the second muscle 004 equals the height of described second muscle 004, conveniently process, the height of preferred described first muscle 003 of the utility model is equal with the height of the second muscle 004.
The wall thickness of the described metal tube 001 in described textured region thickeies along with the minimizing of the distance between described muscle.Preferred: the wall thickness of the described metal tube 001 in described first area 02 thickeies along with the minimizing of the distance between described first muscle 003; The wall thickness of the described metal tube 001 in described 3rd area 04 thickeies along with the minimizing of the distance between described second muscle 004; And the wall thickness of described metal tube 001 in described second area 03 remains unchanged.
The thickest (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described first area 02 and the 3rd area 0 4) of the described metal tube 001 in described first area 02 and the 3rd area 04 is not less than at the wall thickness of the described metal tube 001 at described first groove 007 and the second groove 008 place.The utility model is preferred: the thickest (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described first area 02 and the 3rd area 0 4) being greater than the described metal tube 001 in described first area 02 and the 3rd area 04 at the wall thickness of the described metal tube 001 at described first groove 007 and the second groove 008 place.
The wall thickness (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described second area 03) of the described metal tube 001 in described second area 03 is not more than the minimum wall thickness (MINI W.) (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described first area 02 and the 3rd area 0 4) of the described metal tube 001 in described first area 02 and the 3rd area 04.The utility model is preferred: the wall thickness (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described second area 03) of the described metal tube 001 in described second area 03 equals the minimum wall thickness (MINI W.) of the described metal tube 001 in described first area 02 and the 3rd area 04 (wall thickness here refers to: the wall thickness of metal tube 001 described in described broken line groove 006 place in described first area 02 and the 3rd area 0 4).
The top ends of described welded seam 002 is slightly less than the thickness of tooth top end to the outer wall of described metal tube 001 of the described double wedge 005 in described second area 03 to the thickness of the outer wall of described metal tube 001.If the top ends of described welded seam 002 than the tooth top end of the described double wedge 005 in described second area 03 closer to the center of described metal tube 001, so the periphery of described metal tube 001 is being fixed, when carrying out tube enlarging operation to its inner periphery, described welded seam 002 place then likely interferes with the swollen head of expander.In addition, if too low relative to the top ends position of the tooth top end of the described double wedge 005 in described second area 03, described welded seam 002, so when carrying out above-mentioned tube enlarging operation, then may cave in the position of the excircle that described welded seam 002 is corresponding, the cylindricity of described metal tube 001 will reduce, and will fix shakiness for the described double wedge 005 of heat trnasfer and the fin on it.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a Novel internal thread heat-exchange tube, is characterized in that: comprise metal tube, and the axis direction on the inwall of described metal tube and along described metal tube is provided with welded seam; The inwall of described metal tube is respectively equipped with muscle in the both sides of described welded seam, and described muscle comprises the first muscle and the second muscle, and described first muscle is arranged on the side of described welded seam, described second muscle is arranged on the opposite side of described welded seam; Described first muscle and the second muscle all parallel with described welded seam; The inwall of described metal tube is provided with textured region between described first muscle and the second muscle, and described textured region is provided with the double wedge of many polyline shapeds; One end of double wedge described at least one is connected with described first muscle, and the other end is connected with described second muscle.
2. a kind of Novel internal thread heat-exchange tube according to claim 1, is characterized in that: each described double wedge is provided with multiple inter-tooth slots.
3. a kind of Novel internal thread heat-exchange tube according to claim 1 or 2, is characterized in that: described textured region comprises first area, second area, the 3rd region; Described second area is arranged between described first area and described 3rd region; The height of the described double wedge in described first area all reduces along with the minimizing of the distance between described first muscle; The height of the described double wedge in described 3rd region all reduces along with the minimizing of the distance between described second muscle; The height of the described double wedge in described second area remains unchanged.
4. a kind of Novel internal thread heat-exchange tube according to claim 3, it is characterized in that: the height of the junction of described double wedge and described first muscle equals the height of described first muscle, the height of the junction of described double wedge and the second muscle equals the height of described second muscle.
5. a kind of Novel internal thread heat-exchange tube according to claim 4, is characterized in that: the wall thickness of the described metal tube in described textured region thickeies along with the minimizing of the distance between described muscle.
6. a kind of Novel internal thread heat-exchange tube according to claim 5, is characterized in that: the wall thickness of the described metal tube in described second area is not more than the minimum wall thickness (MINI W.) of the described metal tube in described first area and the 3rd region.
7. a kind of Novel internal thread heat-exchange tube according to claim 6, is characterized in that: be provided with the first groove between described welded seam and described first muscle, is provided with the second groove between described welded seam and described second muscle; Between two adjacent described double wedges, be provided with broken line groove, described broken line groove is positioned at described textured region; The thickest of the described metal tube in described first area and the 3rd region is not less than at the wall thickness of the described metal tube at described first groove and the second groove place.
8. a kind of Novel internal thread heat-exchange tube according to claim 7, is characterized in that: the top ends of described welded seam is less than the thickness of tooth top end to the outer wall of described metal tube of the described double wedge in described second area to the thickness of the outer wall of described metal tube.
9. a kind of Novel internal thread heat-exchange tube according to claim 8, is characterized in that: described first muscle and the second muscle are set as 10% to 80% of the amount that in second area, double wedge protrudes relative to the inner surface of described metal tube relative to the amount that the inner surface of described metal tube protrudes.
10. a kind of Novel internal thread heat-exchange tube according to claim 9, is characterized in that: the circumferential width of described first area adds that the circumferential width of described second area is 20% to 50% of the all-round length of inner peripheral surface of described metal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423605.7U CN204064080U (en) | 2014-07-29 | 2014-07-29 | A kind of Novel internal thread heat-exchange tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423605.7U CN204064080U (en) | 2014-07-29 | 2014-07-29 | A kind of Novel internal thread heat-exchange tube |
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| Publication Number | Publication Date |
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| CN204064080U true CN204064080U (en) | 2014-12-31 |
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| CN201420423605.7U Active CN204064080U (en) | 2014-07-29 | 2014-07-29 | A kind of Novel internal thread heat-exchange tube |
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| CN (1) | CN204064080U (en) |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190709 Address after: 430040 Yinbai Road, Jihe Street, Dongxihu District, Wuhan City, Hubei Province (in Oasis Industrial Park) Patentee after: Wuhan Yinbai New Materials Co., Ltd. Address before: 430040 No. 70 Yinbai Road, Jihe Street, Dongxihu District, Wuhan City, Hubei Province Patentee before: WUHAN SHENGWO PRECISION MACHINERY MANUFACTURING CO., LTD. |