CN103954157A - Heat pipe and heat exchanger adopting same - Google Patents
Heat pipe and heat exchanger adopting same Download PDFInfo
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- CN103954157A CN103954157A CN201410192540.4A CN201410192540A CN103954157A CN 103954157 A CN103954157 A CN 103954157A CN 201410192540 A CN201410192540 A CN 201410192540A CN 103954157 A CN103954157 A CN 103954157A
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Abstract
The invention relates to the technical field of heat-exchanging devices, and discloses a heat pipe and a heat exchanger adopting the same. The heat pipe comprises a pipe body, wherein the cross section of the pipe body takes a tabular shape; the two ends of the pipe body are an evaporation section and a condensation section respectively; a sintering capillary structure is arranged on the inner surface of the upper wall or the lower wall of the cross section of the pipe body; the sintering capillary structure extends in the axial direction of the pipe body and comprises a first heat-exchanging part; the first heat-exchanging part is arranged on the condensation section of the pipe body; the first heat-exchanging part is divided into toothed parts and groove parts. According to the invention, through arranging the sintering capillary structure on the upper wall or lower wall of the heat pipe and arranging the toothed parts and groove parts on the first heat-exchanging part of the sintering capillary structure, a backflow passageway is formed by the toothed parts, the groove parts and the surrounding space, the heat-transfer capability of the heat pipe in the axial direction is enhanced effectively; the porosity and heat-exchanging area are improved through the arrangement of the toothed parts and the groove parts, the backflow speed of the fluid inside the heat pipe is increased, the heat-conducting property of the heat pipe is enhanced, the production materials are saved, the production cost is saved and the economic benefit is better.
Description
Technical field
The present invention relates to technical field of heat exchange devices, relate to more specifically a kind of heat pipe and there is the heat exchanger of this heat pipe.
Background technology
Along with the raising that Energy Efficiency Ratio requires, the exchange capability of heat of heat exchanger requires also to improve gradually.Heat pipe is the main element of heat exchanger, and the heat exchanger performance of heat exchanger has important impact.In prior art, in order to improve exchange capability of heat, conventionally increase width and the height of heat pipe, but the increase that simultaneously can bring cost, and can be restricted in the increase of some application scenario heat pipe sizes.
In addition, consider from heat exchanger economy, can improve heat exchange property by mode below: reduce the wall thickness of the passage in heat pipe, thereby increase channel cross-sectional flow area and reduce the thermal resistance of heat pipe; Increase the passage number in heat pipe, thereby the contact area of increase cold-producing medium and heat pipe is carried out enhanced heat exchange.But, reduce wall thickness and can bring the strength decreased of heat exchanger; Increase the number of passage, just must reduce the cross-sectional area of passage, smaller channels will be brought higher circulating resistance, in the time that the pressure drop of cold-producing medium is too high, can affect heat transfer temperature difference, thereby be unfavorable for heat exchange, and can bring the wasted work of system to increase, reduce the efficiency of system.
Publication number is that the Chinese patent of 101975526A discloses a kind of heat pipe, in described heat pipe, be limited with the multiple passages along heat pipe spaced apart width wise, wherein 0.45 < (4SZ/PZ)/H <, 0.62 and 0.5 < w1/h1 < 1.5, SZ is the cross-sectional area sum of described multiple passages, PZ is the girth sum of the cross section of described multiple passages, H is the height of heat pipe, w1 is the width of single passage, the height that h1 is passage.
But this patent will separate between each passage, and the fluid between each passage is flow fused well, affects heat exchange efficiency, meanwhile, the functional layer that can effectively increase heat exchange efficiency is not set on the inwall of heat pipe yet.
Summary of the invention
The object of the invention is to, a kind of heat pipe is proposed, the inside of heat pipe is provided with the sintering capillary structure that can effectively increase fluid heat transfer efficiency, in the first heat exchange portion of sintering capillary structure, be provided with tooth portion and slot part, the inwall of tooth portion, slot part and body forms steam channel, can strengthen the porosity of heat pipe inner wall in strengthening heat exchange efficiency, reduces the resistance that heat-pipe-fluid refluxes, improve heat exchange efficiency, increase the heat conductivility of heat pipe.
Another object of the present invention is, proposes a kind of heat exchanger that is provided with above-mentioned heat pipe, and this heat exchanger, owing to being provided with above-mentioned heat pipe, makes the exchange capability of heat of heat exchanger stronger, effectively raises the heat exchange efficiency of heat exchanger.
For reaching this object, the present invention by the following technical solutions:
A kind of heat pipe, comprise body, described body has flat shape of cross section, the two ends of described body are respectively evaporator section and condensation segment, it is characterized in that: on the upper wall of the cross section of described body or the inner surface of lower wall, be provided with sintering capillary structure, described sintering capillary structure extending axially along described body;
Described sintering capillary structure comprises the first heat exchange portion, and described the first heat exchange portion is arranged on the condensation segment of described body, and described the first heat exchanging part is tooth portion and slot part, and tooth portion and slot part interval arrange.
Further, described sintering capillary structure also comprises the second heat exchange portion that is arranged at described evaporator section, and the thickness of the second heat exchange portion of described sintering capillary structure is 0.6mm-0.8mm.
Further, the thickness of the first heat exchange portion of described sintering capillary structure is 0.5mm-0.7mm.
Further, the width of described sintering capillary structure is 5.0mm-5.5mm.
Further, the width of the tooth portion of described the first heat exchange portion is 0.9mm-1.1mm.
Further, the height between upper wall and the lower wall of described body is 1.2mm-1.5mm; The width of described body is 8.3mm-8.5mm; The upper wall of described body and the thickness of lower wall are 0.15mm-0.2mm.
Preferably, described sintering capillary structure is fired and is formed by metal dust.
Preferably, the cross section of described body is Long Circle cross section or rectangular cross section.
A kind of heat exchanger, described heat exchanger inside is provided with heat pipe as above.
Beneficial effect of the present invention is:
(1) the present invention arranges sintering capillary structure on the upper wall of heat pipe or lower wall, in the first heat exchange portion of sintering capillary structure, be provided with tooth portion and slot part, tooth portion and slot part and surrounding space form return flow line, effectively strengthen the axial heat-transfer capability of heat pipe, the setting of tooth portion and slot part has also increased porosity and heat exchange area, reduce the back-flow velocity of inside heat pipe fluid, improve heat transfer efficiency, strengthen the heat conductivility of heat pipe, saved production material simultaneously, saved production cost, economic benefit is better;
(2) heat exchanger in the present invention uses above-mentioned heat pipe to make, and the tube wall of heat pipe is thinner, has improved heat transfer efficiency, has strengthened the thermal conductivity of heat exchanger, has reduced the production cost of heat exchanger.
Brief description of the drawings
Fig. 1 is the cutaway view of the heat pipe that proposes of the embodiment of the present invention one along axis direction;
Fig. 2 is the cutaway view of the cross section of heat pipe the second heat exchange portion of proposing of the embodiment of the present invention one;
Fig. 3 is the cutaway view of the cross section of heat pipe the first heat exchange portion of proposing of the embodiment of the present invention one.
In figure:
1, body; 2, sintering capillary structure; 21, the second heat exchange portion; 22, the first heat exchange portion; 221, tooth portion; 222, slot part; 3, evaporator section; 4, condensation segment.
Detailed description of the invention
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by detailed description of the invention.
Embodiment mono-
As Figure 1-3, be a kind of heat pipe that the present embodiment proposes, comprise body 1, described body 1 has flat shape of cross section, and the two ends of described body 1 are respectively evaporator section 3 and condensation segment 4.Height between upper wall and the lower wall of described body 1 is 1.2mm-1.5mm; The width of described body 1 is 8.3mm-8.5mm; The upper wall of described body 1 and the thickness of lower wall are 0.15mm-0.2mm.As one preferred embodiment, the cross section of described body 1 is Long Circle cross section or rectangular cross section.
On the upper wall of described cross section or the inner surface of lower wall, be provided with sintering capillary structure 2, described sintering capillary structure 2 extends axially along described body 1, and the width of described sintering capillary structure 2 is 5.0mm-5.5mm.In to the process of described body 1 machine-shaping, selecting internal diameter is 5mm, 6mm or 8mm, wall thickness is that the copper pipe processing of 0.15-0.30mm forms, certainly, also can select sintering capillary structure 2 described in aluminum pipe, stainless steel tube or the titanium pipe of above-mentioned specification to comprise the first heat exchange portion 22, described the first heat exchange portion 22 is arranged on the condensation segment 4 of described body 1, and described the first heat exchange portion 22 is divided into tooth portion 221 and slot part 222.
Described sintering capillary structure 2 also comprises the second heat exchange portion 21 that is arranged at described evaporator section 3, and the thickness of the second heat exchange portion 21 of described sintering capillary structure is 0.6mm-0.8mm.The thickness of described sintering capillary structure the first heat exchange portion 22 is 0.5mm-0.7mm.
Wherein, described the first heat exchange portion 22 is divided into tooth portion 221 and slot part 222.The width of the tooth portion 221 of described the first heat exchange portion 22 is 0.9mm-1.1mm.Distance between the end face of the tooth portion 221 of described the first heat exchange portion and the bottom surface of described slot part 222 is 0.5mm-0.7mm.Described tooth portion 221 and slot part 222 form the tongue and groove of city wall shape, due to tooth portion 221 and slot part 222 intervals settings, form vapor stream return flow line in the inner space of body 1, effectively strengthened the axial exchange capability of heat of heat pipe, the design of concaveconvex structure simultaneously has also increased porosity and heat exchange area, has reduced the resistance that body 1 internal flow refluxes, improve heat transfer efficiency, strengthen the heat exchange property of heat pipe, saved material, saved cost.
Body 1 is to use pipe to obtain through filling the operations such as metal dust, sintering, and described sintering capillary structure 2 is fired and formed by metal dust.Metal dust being carried out in the process of sintering, previously prepared good special plug need to be fixed among pipe, carrying out in sintering process filling metal powder granulates in corresponding position, such as: the metal dusts such as copper powder, aluminium powder or nickel powder.Powder particle carries out, in sintering process, sticking together, and the engagement edge of the powder particle after sintering is more smooth, and the strength of connection between powder particle is larger.In the process of processing pipe flanging, pressure is applied to the axial medium position of pipe.After flattening, sintering capillary structure 2 forms opposing steam flow passage with the inwall of body 1, make steam from opposing steam flow passage, to flow to condensation segment, and condense into liquid medium at condensation segment, liquid medium turns back to hot-zone end under capillarity along capillary structure.
Embodiment bis-
The present embodiment proposes a kind of heat exchanger, and described heat exchanger inside is provided with the heat pipe as described in embodiment mono-.Heat exchanger in the present embodiment, uses the heat pipe in embodiment mono-to make, and the tube wall of heat pipe is thinner, has improved heat transfer efficiency, has strengthened the thermal conductivity of heat exchanger, has reduced the production cost of heat exchanger.
Below described in conjunction with specific embodiments know-why of the present invention, these are described is in order to explain principle of the present invention, can not be interpreted as by any way limiting the scope of the invention.Based on explain herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (9)
1. a heat pipe, comprise body (1), described body (1) has flat shape of cross section, the two ends of described body (1) are respectively evaporator section (3) and condensation segment (4), it is characterized in that: on the upper wall of cross section of described body (1) or the inner surface of lower wall, be provided with sintering capillary structure (2), described sintering capillary structure (2) extending axially along described body (1);
Described sintering capillary structure (2) comprises the first heat exchange portion (22), described the first heat exchange portion (22) is arranged on the condensation segment (4) of described body (1), described the first heat exchange portion (22) is divided into tooth portion (221) and slot part (222), and described tooth portion (221) and slot part (222) interval arrange.
2. heat pipe according to claim 1, it is characterized in that: described sintering capillary structure (2) also comprises the second heat exchange portion (21) that is arranged at described evaporator section (3), and the thickness of the second heat exchange portion (21) of described sintering capillary structure is 0.6mm-0.8mm.
3. heat pipe according to claim 1, is characterized in that: the thickness of the first heat exchange portion (22) of described sintering capillary structure is 0.5mm-0.7mm.
4. heat pipe according to claim 1, is characterized in that: the width of described sintering capillary structure (2) is 5.0mm-5.5mm.
5. heat pipe according to claim 1, is characterized in that: the width of the tooth portion (221) of described the first heat exchange portion (22) is 0.9mm-1.1mm.
6. heat pipe according to claim 1, is characterized in that: the height between upper wall and the lower wall of described body (1) is 1.2mm-1.5mm;
The width of described body (1) is 8.3mm-8.5mm;
The upper wall of described body (1) and the thickness of lower wall are 0.15mm-0.2mm.
7. heat pipe according to claim 1, is characterized in that: described sintering capillary structure (2) is fired and formed by metal dust.
8. heat pipe according to claim 1, is characterized in that: the cross section of described body (1) is Long Circle cross section or rectangular cross section.
9. a heat exchanger, is characterized in that: described heat exchanger inside is provided with the heat pipe as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192540.4A CN103954157A (en) | 2014-05-08 | 2014-05-08 | Heat pipe and heat exchanger adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192540.4A CN103954157A (en) | 2014-05-08 | 2014-05-08 | Heat pipe and heat exchanger adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103954157A true CN103954157A (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410192540.4A Pending CN103954157A (en) | 2014-05-08 | 2014-05-08 | Heat pipe and heat exchanger adopting same |
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| Country | Link |
|---|---|
| CN (1) | CN103954157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111615310A (en) * | 2020-06-16 | 2020-09-01 | 东莞市鼎通精密科技股份有限公司 | Heat pipe and self-radiating connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040177946A1 (en) * | 2003-02-17 | 2004-09-16 | Fujikura Ltd. | Heat pipe excellent in reflux characteristic |
| CN201122068Y (en) * | 2007-09-03 | 2008-09-24 | 双鸿科技股份有限公司 | Heat pipe structure with double-layer capillary organization |
| CN201653216U (en) * | 2010-02-01 | 2010-11-24 | 昆山巨仲电子有限公司 | Flat heat pipe structure |
| CN203893718U (en) * | 2014-05-08 | 2014-10-22 | 昆山德泰新材料科技有限公司 | Heat pipe and heat exchanger with same |
-
2014
- 2014-05-08 CN CN201410192540.4A patent/CN103954157A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040177946A1 (en) * | 2003-02-17 | 2004-09-16 | Fujikura Ltd. | Heat pipe excellent in reflux characteristic |
| CN201122068Y (en) * | 2007-09-03 | 2008-09-24 | 双鸿科技股份有限公司 | Heat pipe structure with double-layer capillary organization |
| CN201653216U (en) * | 2010-02-01 | 2010-11-24 | 昆山巨仲电子有限公司 | Flat heat pipe structure |
| CN203893718U (en) * | 2014-05-08 | 2014-10-22 | 昆山德泰新材料科技有限公司 | Heat pipe and heat exchanger with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111615310A (en) * | 2020-06-16 | 2020-09-01 | 东莞市鼎通精密科技股份有限公司 | Heat pipe and self-radiating connector |
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Application publication date: 20140730 |
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