CN103791754A - Efficient heat exchange tube used for condenser - Google Patents
Efficient heat exchange tube used for condenser Download PDFInfo
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- CN103791754A CN103791754A CN201410059081.2A CN201410059081A CN103791754A CN 103791754 A CN103791754 A CN 103791754A CN 201410059081 A CN201410059081 A CN 201410059081A CN 103791754 A CN103791754 A CN 103791754A
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- fin
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- exchanging pipe
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Abstract
The invention relates to an efficient heat exchange tube used for a condenser, and belongs to the technical field of condensation heat exchange tubes in an air conditioning and refrigerating system. The efficient heat exchange tube comprises a tube body, spiral fins and fin spiral grooves, wherein material on the tube body extends in the radius direction of the tube body and extends on the outer surface of the tube body around the tube body in a spiral mode to form the spiral fins integral with the tube body, and the fin spiral grooves are formed in the spiral fins in the length direction of the tube body. The efficient heat exchange tube is characterized by further comprising fin circumferential grooves, the fin circumferential grooves are formed in the spiral fins at intervals in the circumferential direction of the tube body, and not only are staggered with the fin spiral grooves, but also are communicated with the fin spiral grooves, and independent heat exchange expansion units are formed in the spiral fins and simultaneously communicated with the fin spiral grooves and the fin circumferential grooves through the fin spiral grooves and the fin circumferential grooves. The heat exchange area outside the tube is substantially increased, liquid drainage speed is improved, and moreover the weight of the tube body can be reduced.
Description
Technical field
The invention belongs to the condensation heat exchange Manifold technology field in air-conditioning, refrigeration system, be specifically related to the efficient heat-exchanging pipe that a kind of condenser is used, be applicable to manage outer condensing heat transfer enhancement and use embody energy-conservation.
Background technology
The top that the heat exchange tube structure that condenser in prior art is used is conventionally formed in the outer wall of body at the length direction along body with spiral status and is raised in the helical fin of outer wall surface cuts out the groove (custom claims fin top groove or wing top groove) of not only interval but also dense distribution, " heat-transfer tube for mixed refrigerant " and " a kind of thermoexcell " of CN111603793B introduction that document " heat-transfer pipe ", the CN1092327C open as that Chinese patent Granted publication CN2365635Y recommends of this structure provides.These patent schemes that are not limited to exemplify strengthen the disturbance of heat-transfer surface convection cell simultaneously and embody good energy-saving effect for the heat transfer outside a tube area of heat exchanger tube that improves air-conditioning and refrigeration system and all have positive effect.But there is following logical fraud: because aforementioned grooves is only formed in the top of helical fin, thereby the increase of heat exchange area is very limited, and the heat exchange surface of the heat exchanger tube of especially this structure can make fluid resistance significantly increase in enhanced heat exchange." a kind of heat-exchange tube " that Chinese invention patent application publication No. CN102425972A discloses is transitioned into adjacent helical fin (specifically can referring to the 0004th section, the description of this patent) by extend to the both sides of helical fin and the body surface between adjacent helical fin (patent claims pipe primary surface) at the groove at helical fin top.Objective, this patent application scheme can embody the 0011st section of technique effect referring of its description, but because helical fin surface is still relatively smooth, thereby the coefficient of heat transfer of condensation heat transfer is still not enough to reach gratifying degree, and heat exchanger tube is that the weight of heat-exchange tube is difficult to effectively alleviate.
The research of condensation heat transfer mechanism shows, the thermal conduction resistance of liquid film is the major part of condensation heat transfer thermal resistance, thereby the key of strengthening condensation is the thickness of liquid film that reduces as far as possible condensate liquid, and the thickness of liquid film that reduces condensate liquid must be taken into account following two factors: the one, form special extended surface at heat exchange surface, the surface tension that changes liquid film distributes, condensate liquid is deposited in the groove position that is formed at extended surface under capillary effect, the heat output of groove weakened though (weakening), but it is very thin that the thickness of the liquid film at the sharp-pointed position of extended surface becomes, heat-transfer effect significantly improves, so, overall heat exchange property effectively improves, the 2nd, manage to improve the drain age velocity of extended surface, avoid the extended surface liquid Yong Sai that is condensed, the delay effect that its principle is or adopts sharp-pointed extended surface to reduce surface tension, drop to be produced, or utilize conduit guiding condensate liquid to gather to increase the effect that gravity departs from drop, thereby accelerate the disengaging of drop.Just based on this research, industry is being devoted to the surface texture of the heat exchanger tube that condenser is used always and is being explored, the coefficient of heat transfer of the condensation heat transfer of heat exchanger tube is further improved, and both can embody high efficient heat exchanging and save the energy, can alleviate again the weight of heat exchanger tube.
For above-mentioned prior art, the applicant has done lasting and useful exploration, has finally formed technical scheme described below, and is taking under secrecy provision through experiment test, and it is effective that result proves.
Summary of the invention
Task of the present invention is to provide a kind of and contributes to enlarge markedly heat transfer outside a tube surface, is conducive to utilize well the surface tension effects of condensate film and reduces the thickness of liquid film that is formed on fin, is of value to the efficient heat-exchanging pipe that improves drain age velocity and have the condenser of being convenient to alleviate body weight to use.
Task of the present invention completes like this, the efficient heat-exchanging pipe that a kind of condenser is used, comprise body, by the material on body along the radial direction of body extend and the outer surface of body around body in the shape of a spiral state extend being configured to the helical fin of one and being opened in the fin helical groove on helical fin along the length direction of body with body of forming, be characterised in that: also comprise the spaced apart not only but also fin circumferential recess that with fin helical groove communicate staggered with described fin helical groove of being located on described helical fin of circumferencial direction along body, form on described helical fin by fin helical groove and fin circumferential recess one by one independently and the heat-transfer surface expanding element communicating with fin helical groove and fin circumferential recess simultaneously.
In a specific embodiment of the present invention, described heat-transfer surface expanding element is made up of cylinder and cone, and wherein, cone is positioned at the top of cylinder.
In another specific embodiment of the present invention, described cylinder is quadrangle cylinder, and described cone is rectangular pyramid, and is highly 0.1-0.4 ㎜.
In another specific embodiment of the present invention, described fin helical groove is identical with the height of described helical fin with the degree of depth of fin circumferential recess, and the width of fin helical groove and fin circumferential recess is 0.1-0.5 ㎜.
In another specific embodiment of the present invention, the height of described helical fin is 0.5-1.5 ㎜.
Also have in a specific embodiment of the present invention, in described fin circumferential recess and around fin circumferential recess, form the boss ridge that has the bottom land wall that is raised in fin circumferential recess.
More of the present invention and in a specific embodiment, the shape of cross section semicircular in shape of described boss ridge.
In of the present invention and then a specific embodiment, the height of described boss ridge is 0.1-0.4 ㎜.
More, in a specific embodiment, in described boss ridge, offer boss ridge groove with interval state again of the present invention, the degree of depth of this boss ridge groove and width are 0.01-0.05 ㎜.
In again of the present invention and then a specific embodiment, form and have inner fin at the inwall of described body.
Technical scheme provided by the invention is because the circumferencial direction along body on helical fin offers fin circumferential recess, on helical fin, formed with fin circumferential recess by fin helical groove one by one independently and the heat-transfer surface expanding element communicating with fin helical groove and fin circumferential recess simultaneously, thereby can increase significantly heat transfer outside a tube area, and heat-transfer surface expanding element can play and effectively utilizes the surface tension of condensate film and reduce the effect that is formed at the thickness of liquid film on helical fin, not only can improve drain age velocity and can alleviate the weight of body.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Fig. 3 be Fig. 1 partly cut open schematic diagram.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the present invention program to the description of embodiment, any done according to the present invention design only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Embodiment 1:
Refer to Fig. 1 to Fig. 3, provide body 1, by the material on body 1 along the radial direction of body 1 extend and the outer surface of body 1 around body 1 in the shape of a spiral state extend (one end from the length direction of body 1 extends to the other end with spiral status) form be configured to the helical fin 2 of one and be opened in the fin helical groove 3 on helical fin 2 along the length direction of body 1 with body 1, and form and have inner fin 5 on the inwall of body 1, between the longitudinal center line of inner fin 5 and body 1, be formed with the helical angle (spiral angle of the present embodiment is 40 °) of 15-60 °.
Technical essential as technical scheme provided by the invention: also offer fin circumferential recess 4 on aforesaid helical fin 2, specifically, this fin circumferential recess 4 is opened on helical fin 2 along the circumferencial direction of body 1, and this fin circumferential recess 4 is not only staggered with fin helical groove 3 but also communicate with fin helical groove 3, form on helical fin 2 by fin helical groove 3 and cooperatively interacting of fin circumferential recess 4 one by one independently and the heat-transfer surface expanding element 21(communicating with fin helical groove 3 and fin circumferential recess 4 also can claim heat-transfer surface to increase unit simultaneously).
Above mentioned heat-transfer surface expanding element 21 is made up of jointly cylinder 211 and cone 212, and cone 212 is positioned at the top of cylinder 211.In the present embodiment, cylinder 211 is quadrangle cylinder, and cone 212 is rectangular pyramid, and is highly 0.2 ㎜.Rectangular pyramid described here refers to have four faces, and the shape of each face is triangular in shape.
The height of aforesaid helical fin 2 is 1 ㎜, and the degree of depth of aforesaid fin helical groove 3 and fin circumferential recess 4 all equates with the height of helical fin 2, be 1 ㎜, and the width of fin helical groove 3 and fin circumferential recess 4 is 0.2 ㎜.
In aforesaid fin circumferential recess 4 and around fin circumferential recess 4, form the boss ridge 41 that has the bottom land wall that is raised in fin circumferential recess 4, the cross section of boss ridge 41 is transverse shape semicircular in shape (also can claim semicircular arc).In the present embodiment, the height of boss ridge 41 is 0.25 ㎜.In boss ridge 41 take interval state offer the degree of depth as 0.01 ㎜'s and width as the boss ridge groove 411 of 0.01 ㎜.
Owing to being formed with heat-transfer surface expanding element 21 on helical fin 2, thereby can embody all sidedly the technique effect referring in the superincumbent technique effect of applicant hurdle.In addition, owing to having boss ridge 41 in the interior formation of fin circumferential recess 4 and offer boss ridge groove 411 in boss ridge 41, thereby can effectively eliminate thermal contact resistance between the pipe base portion position of helical fin 2 and body 1.
Embodiment 2:
Only change the height of helical fin 2 into 1.5 ㎜, the degree of depth of fin helical groove 3 and fin circumferential recess 4 is similarly 1.5 ㎜, change the height of cone 212 into 0.4 ㎜, change the height of boss ridge 41 into 0.4 ㎜, and change the degree of depth of boss ridge groove into 0.03 ㎜, change the width of fin helical groove 3 and fin circumferential recess 4 into 0.25 ㎜, change the width of boss ridge groove 411 into 0.05 ㎜, all the other are all with the description to embodiment 1.
Embodiment 3:
Only change the height of helical fin 2 into 0.5 ㎜, the degree of depth of fin helical groove 3 and fin circumferential recess 4 is similarly 0.5 ㎜, change the height of cone 212 into 0.1 ㎜, change the height of boss ridge 41 into 0.1 ㎜, and change the degree of depth of boss ridge groove into 0.05 ㎜, change the width of fin helical groove 3 and fin circumferential recess 4 into 0.15 ㎜, change the width of boss ridge groove 411 into 0.02 ㎜, all the other are all with the description to embodiment 1.
Claims (10)
1. the efficient heat-exchanging pipe that condenser is used, comprise body (1), by the material on body (1) along the radial direction of body (1) extend and the outer surface of body (1) around body (1) in the shape of a spiral state extend being configured to the helical fin (2) of one and being opened in the fin helical groove (3) on helical fin (2) along the length direction of body (1) with body (1) of forming, it is characterized in that: also comprise the spaced apart not only but also fin circumferential recess (4) that with fin helical groove (3) communicate staggered with described fin helical groove (3) of being located on described helical fin (2) of circumferencial direction along body (1), form one by one independently and the heat-transfer surface expanding element (21) communicating with fin helical groove (3) and fin circumferential recess (4) by fin helical groove (3) and fin circumferential recess (4) and described helical fin (2) is upper simultaneously.
2. the efficient heat-exchanging pipe that condenser according to claim 1 is used, it is characterized in that described heat-transfer surface expanding element (21) is made up of cylinder (211) and cone (212), wherein, cone (212) is positioned at the top of cylinder (211).
3. the efficient heat-exchanging pipe that condenser according to claim 2 is used, is characterized in that described cylinder (211) is quadrangle cylinder, and described cone (212) is rectangular pyramid, and is highly 0.1-0.4 ㎜.
4. the efficient heat-exchanging pipe that condenser according to claim 1 is used, it is characterized in that described fin helical groove (3) and the degree of depth of fin circumferential recess (4) are identical with the height of described helical fin (2), and the width of fin helical groove (3) and fin circumferential recess (4) is 0.1-0.5 ㎜.
5. the efficient heat-exchanging pipe of using according to the condenser described in claim 1 or 4, the height that it is characterized in that described helical fin (2) is 0.5-1.5 ㎜.
6. the efficient heat-exchanging pipe of using according to the condenser described in claim 1 or 4, is characterized in that forming in described fin circumferential recess (4) and around fin circumferential recess (4) boss ridge (41) that has the bottom land wall that is raised in fin circumferential recess (4).
7. the efficient heat-exchanging pipe that condenser according to claim 6 is used, the shape of cross section semicircular in shape of the boss ridge (41) described in it is characterized in that.
8. the efficient heat-exchanging pipe that condenser according to claim 7 is used, the height that it is characterized in that described boss ridge (41) is 0.1-0.4 ㎜.
9. the efficient heat-exchanging pipe that condenser according to claim 8 is used, it is characterized in that above offering boss ridge groove (411) with interval state in described boss ridge (41), the degree of depth and the width of this boss ridge groove (411) are 0.01-0.05 ㎜.
10. the efficient heat-exchanging pipe that condenser according to claim 1 is used, is characterized in that forming and having inner fin (5) at the inwall of described body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059081.2A CN103791754A (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube used for condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059081.2A CN103791754A (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube used for condenser |
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| CN103791754A true CN103791754A (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410059081.2A Pending CN103791754A (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube used for condenser |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165480A (en) * | 2014-06-30 | 2014-11-26 | 河南新科隆电器有限公司 | Twisted layer type helical fin condenser |
| CN106642829A (en) * | 2016-11-16 | 2017-05-10 | 金龙精密铜管集团股份有限公司 | Evaporation pipe for absorption unit and preparation method |
| CN106640321A (en) * | 2016-12-09 | 2017-05-10 | 重庆道同动力机械设备有限公司 | Heat exchange wind wheel structure of engine |
| CN108759184A (en) * | 2018-08-13 | 2018-11-06 | 珠海格力电器股份有限公司 | Condenser pipe and condenser |
| CN111854502A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
| CN115014014A (en) * | 2022-07-01 | 2022-09-06 | 浙江壳邦力特油脂有限公司 | Cooling water circulation device for lubricating grease production |
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| CN1239218A (en) * | 1998-03-13 | 1999-12-22 | 株式会社神户制钢所 | Falling film type heat exchanger tube |
| JP2000193345A (en) * | 1998-03-31 | 2000-07-14 | Sanyo Electric Co Ltd | Absorption type refrigerating machine and heat exchanger tube used therefor |
| CN1391080A (en) * | 2001-06-12 | 2003-01-15 | 株式会社神户制钢所 | Heat transferring tube for downward flow fluid membrane distiller |
| CN101182977A (en) * | 2007-12-11 | 2008-05-21 | 华南理工大学 | Inner chiasma spiral exterior three-dimensional diamond-type rib double-side intensify heat transfer pipe |
| CN102466424A (en) * | 2010-11-10 | 2012-05-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat transfer pipe, falling film evaporator heat transfer pipe and falling film evaporator |
| CN103063072A (en) * | 2013-01-10 | 2013-04-24 | 江苏萃隆精密铜管股份有限公司 | Heat-exchange tube |
| CN203687732U (en) * | 2014-02-21 | 2014-07-02 | 江苏萃隆精密铜管股份有限公司 | Efficient heat exchange tube for condenser |
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2014
- 2014-02-21 CN CN201410059081.2A patent/CN103791754A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1239218A (en) * | 1998-03-13 | 1999-12-22 | 株式会社神户制钢所 | Falling film type heat exchanger tube |
| JP2000193345A (en) * | 1998-03-31 | 2000-07-14 | Sanyo Electric Co Ltd | Absorption type refrigerating machine and heat exchanger tube used therefor |
| CN1391080A (en) * | 2001-06-12 | 2003-01-15 | 株式会社神户制钢所 | Heat transferring tube for downward flow fluid membrane distiller |
| CN101182977A (en) * | 2007-12-11 | 2008-05-21 | 华南理工大学 | Inner chiasma spiral exterior three-dimensional diamond-type rib double-side intensify heat transfer pipe |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165480A (en) * | 2014-06-30 | 2014-11-26 | 河南新科隆电器有限公司 | Twisted layer type helical fin condenser |
| CN104165480B (en) * | 2014-06-30 | 2016-05-25 | 河南新科隆电器有限公司 | One is turned round laminar turn fin condenser |
| CN106642829A (en) * | 2016-11-16 | 2017-05-10 | 金龙精密铜管集团股份有限公司 | Evaporation pipe for absorption unit and preparation method |
| CN106640321A (en) * | 2016-12-09 | 2017-05-10 | 重庆道同动力机械设备有限公司 | Heat exchange wind wheel structure of engine |
| CN108759184A (en) * | 2018-08-13 | 2018-11-06 | 珠海格力电器股份有限公司 | Condenser pipe and condenser |
| CN108759184B (en) * | 2018-08-13 | 2024-05-10 | 珠海格力电器股份有限公司 | Condenser pipe and condenser |
| CN111854502A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力电器股份有限公司 | Heat exchange tube and air conditioning unit |
| CN115014014A (en) * | 2022-07-01 | 2022-09-06 | 浙江壳邦力特油脂有限公司 | Cooling water circulation device for lubricating grease production |
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Application publication date: 20140514 |