专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS59176593A Boiling type heat transfer tube and manufacture thereof 失效
标题翻译：锅炉式换热管及其制造
公开(公告)号：JPS59176593A
公开(公告)日：1984-10-05
申请号：JP4954883
申请日：1983-03-24
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAYAMA YOSHIHIKO
IPC分类号： F28F13/02 , F28F1/12 , F28F1/42 , F28F13/18
CPC分类号： F28F13/187
摘要： PURPOSE:To contrive to increase the overall heat transferring efficiency of a boiling type heat transfer tube, by forming channels which function as openings for tunnels provided on the outer surface of a heat transfer tube, as well as to form projections in the tube by a corrugation work in order to increase the heat transferring rate. CONSTITUTION:A heat transfer tube of out of tube boiling type for a heat exchanger is manufactured by treating a corrugation work and forming spiral projections 4 on the inside wall of a heat transfer tube 1, as well as to form spiral channels 3 on the outer surface of a tube, and in addition, by forming a number of fine tunnels 7 of which both ends are opened to the vicinity of the spiral channels 3, which are formed on the outer surface between the above-mentioned channels 3. The tunnels 7 being formed in such a manner function as part of bubbles generated and grown from liquid, when a liquid medium which is to be boiled is passed through the outer side of a tube, while a liquid in comparatively high temperature, which is not accompanied with a phase change in the tube, is passed through the inside of a tube. On the other hand, the projectins 4 being formed on the inside of a tube by corrugation work act so as to increase the heat transferring rate in the tube.
摘要翻译：目的：为了提高沸腾型传热管的整体传热效率，通过形成用作设置在传热管的外表面上的隧道开口的通道，以及在管中形成突起波纹工作，以提高传热速率。构成：通过处理波纹工件并在传热管1的内壁上形成螺旋突起4并且在外部形成螺旋形通道3来制造用于热交换器的管沸腾型换热器的传热管并且另外，通过在上述通道3之间的外表面上形成有多个形成在螺旋通道3附近的两端开口的细孔7。隧道7 以这样的方式形成作为从液体产生和生长的气泡的一部分的功能，当待沸腾的液体介质通过管的外侧时，同时不伴随着液体的相对高温的液体管中的相变通过管的内部。另一方面，通过波纹工作形成在管的内部的突起4起作用，以增加管中的传热速率。

2. 发明专利

JPS59145496A Boiling type heat transfer wall and forming method thereof 失效
标题翻译：锅炉式热交换器及其形成方法
公开(公告)号：JPS59145496A
公开(公告)日：1984-08-20
申请号：JP1905683
申请日：1983-02-08
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , KAKIZAKI KIMIO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAJIMA TADAKATSU , NAKAYAMA YOSHIHIKO
IPC分类号： F28F13/02 , F28F1/10 , F28F1/12 , F28F13/18
CPC分类号： F28F13/187
摘要： PURPOSE:To obtain a heat transfer wall whose boiling heat transfer property is improved through tunnels, by forming two layers of a plurality of fine tunnels that are located under each surface between grooves with a large pitch, are extended crossing with the grooves, and are formed integrally with a heat transfer wall and whose both ends are in communication with the grooves. CONSTITUTION:A heat transfer pipe includes a heat transfer main pipe 1 having the helical grooves with a large pitch, and two rows of the plurality of fine tunnels 3, 4 are extended under each suface between the grooves 2 normally to the grooves 2 and are integrated with the main body 1. The inclinations of the rows of the tunnels 3, 4 may or may not the same to the grooves 2. The numbers of the tunnels in the rows may or may not the same. The opposite ends of the tunnels 3, 4 are open adjacent to the grooves 2, and are in communication with the outside via each of gaps 5. The inside of the pipe main body 1 may be smooth, but in this aembodiment, the parts corresponding to the grooves are projected helically. Accordingly, if the fluid in the pipe flows slowly, turbulence effect occurs, and the heat transfer efficiency in the pipe can be improved.
摘要翻译：目的：为了获得通过隧道提高沸腾传热性能的传热壁，通过形成两层位于各槽之间的大间距下方的多个细小的隧道，与槽相交，并且与传热壁一体形成，并且其两端与凹槽连通。构成：传热管包括具有大间距的螺旋槽的传热主管1，并且多个细沟3和4中的两排在槽2之间的每个表面正常延伸到槽2，并且分别是与主体1集成。隧道3,4的行的倾斜度可以与凹槽2相同或相同。行中的隧道数可以相同也可以不相同。隧道3,4的相对端部与沟槽2相邻地开口，并且经由每个间隙5与外部连通。管主体1的内部可以是平滑的，但是在该实施例中，对应的部件凹槽被螺旋地投影。因此，如果管道中的流体缓慢地流动，则发生湍流效应，并且可以提高管道中的传热效率。

3. 发明专利

JPS59145495A Boiling type heat transfer wall 失效
标题翻译：锅炉式热交换器
公开(公告)号：JPS59145495A
公开(公告)日：1984-08-20
申请号：JP1905583
申请日：1983-02-08
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , KAKIZAKI KIMIO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAYAMA YOSHIHIKO
IPC分类号： F28F13/02 , F28F1/12 , F28F13/18
CPC分类号： F28F13/187
摘要： PURPOSE:To obtain a heat transfer wall whose production is easy, quality is stable and property is excellent, by winding, on a fin tip section on a finned surface, a tape whose width is wider than the pitch of the fins and that has a plurality of grooves extending laterally in the one surface. CONSTITUTION:The surface of a pipe material 1 is cut helically to form fins 2 whose tips are sharply tapered, and the copper tape 3 having corrugations with a pitch of 0.4-1.0mm., the thickness of the tape 3 being 0.05-0.3mm. and the width of the tape 3 being 2-10mm., is wound helically on the fins with a gap of the turns of the tape being 0.2-1.5mm. and is secured partially to the pipe material 1. Thus, a plurality of tunnels 5 are formed under the tape 3, the lower parts of the tunnels 5 being defined by the fins 2 and the upper parts of the tunnels 5 being in communication with each other via the grooves 4. An open part 6 is formed between the turns of the tape 3, the open part 6 being in communication with the outside. Steam bubbles generated in the tunnels 5 would not be released immediately outside but remain there, so that steam bubbles would be produced efficiently in the tunnels 5. The open part 6 serves as a releasing section for allowing part of the steam bubbles spread in the tunnels 4 and also as an inlet of the liquid into the tunnels 5, so that boiling thereof is made active and the heat transfer efficiency can be increased.
摘要翻译：目的：为了获得容易生产的传热壁，质量稳定，性能优良，通过在翅片表面上的翅片末端部分卷绕宽度大于翅片间距的带材，并具有多个槽在一个表面中横向延伸。构成：将管材1的表面螺旋状切割，形成尖端尖锐的翅片2，铜带3的间距为0.4〜1.0mm的波纹，带3的厚度为0.05〜0.3mm 。并且带3的宽度为2-10mm，螺旋地缠绕在翅片上，带的匝间隙为0.2-1.5mm。并且部分地固定在管材1上。因此，在带3的下方形成有多个通道5，隧道5的下部由翅片2限定，并且隧道5的上部与每个另一个通过凹槽4.开口部分6形成在带3的匝之间，开放部分6与外部连通。在隧道5中产生的蒸汽气泡不会立即在外面释放，而是留在那里，从而在隧道5中有效地产生蒸汽气泡。开放部分6用作释放部分，用于允许在隧道中扩散的一部分蒸气泡并且还作为液体进入隧道5的入口，使得其沸腾被激活并且可以提高传热效率。

4. 发明专利

JPS59112199A Heat-exchanging wall and manufacture thereof 失效
标题翻译：热交换墙及其制造
公开(公告)号：JPS59112199A
公开(公告)日：1984-06-28
申请号：JP22008182
申请日：1982-12-17
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： NAKAJIMA TADAKATSU , NAKAYAMA HISASHI , OOGURO TAKAHIRO , KUWABARA HEIKICHI , YASUKAWA AKIRA , KASUYA KATSUHIKO , YOKOI KAZUAKI , NAKAE HIDEO , YOSHIDA HIROMICHI
IPC分类号： F28F13/02 , F28F1/10 , F28F13/18
CPC分类号： F28F13/187 , Y10T29/49378
摘要： PURPOSE:To obtain a uniform high heat transfer rate in a low heat flux range, by a method wherein a tape form thin plate provided with side extension parts and comprising a stack of a plurality layers of a plurality of longitudinal-type hollow belts arranged in parallel with each other is provided with communicating parts for the hollow parts and large and small restricted openings by utilizing adjacent extension parts. CONSTITUTION:The size of the restricted opening becomes maximum when the ratio of the effective diameter or the tooth pitch of a gear roll 15 to the pipe diameter of a heat-transmitting pipe blank 16 coincides with a peak part of the extension part 12, and the minimum opening is obtained when the ratio and the peak part are staggered from each other by 1/2. When a heat-transmitting wall is continuedly overheated and the pressure of vapor bubbles in the hollow parts 20 exceeds the pressure of an external liquid, the vapor bubbles are converted into bubbles at the restricted opening 22a where flow resistance is small, and the bubbles are released. On the other hand, due to the reduction in pressure in the interior of the hollow parts 20 accompanied by growth and release of bubbles at the larger restricted opening 22b, the external liquid penetrates in through the smaller restricted opening 22a, whereby the liquid is supplied into the hollow parts 20. In addition, since all of the adjacent hollow parts 20 are communicated with each other through the communicating parts 27, all of the hollow parts are activated, the vapor bubbles 28 and a liquid film 29 can be formed in each of the hollow parts even in a low heat flux range, and a uniform high heat transfer rate can be obtained.
摘要翻译：目的：为了在低热通量范围内获得均匀的高热传导率，通过一种方法，其中带状薄板设置有侧延伸部分，并且包括多个纵向型中空带的多层堆叠，其布置在通过利用相邻的延伸部分，彼此平行地设置有用于中空部分的连通部分和大的和小的限制开口。构成：当齿轮辊15的有效直径或齿距与传热管坯16的管径的比率与延伸部12的峰部重合时，受限制的开口的尺寸变得最大，当比率和峰值部分彼此交错1/2时获得最小开度。当透热壁继续过热并且中空部20中的蒸汽气泡的压力超过外部液体的压力时，在流动阻力小的限制开口22a处蒸气泡变成气泡，气泡为释放。另一方面，由于中空部20的内部的压力随着较大的限制开口22b的气泡的增长和释放而减小，所以外部液体通过较小的限制开口22a渗透，由此供给液体另外，由于所有相邻的中空部20通过连通部27彼此连通，所以中空部全部被活化，能够形成蒸气泡28和液膜29 的中空部分，即使在低热通量范围内，并且可以获得均匀的高传热速率。

5. 发明专利

JPS59176592A Heat transfer wall and manufacture thereof 失效
标题翻译：热交换器及其制造
公开(公告)号：JPS59176592A
公开(公告)日：1984-10-05
申请号：JP4954983
申请日：1983-03-24
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , KAKIZAKI KIMIO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAJIMA TADAKATSU , NAKAYAMA YOSHIHIKO
IPC分类号： F28F1/08 , F28F1/12
CPC分类号： F28F13/187 , F28F1/12
摘要： PURPOSE:To provide a heat transfer wall for a heat exchanger which is surpassing in both boiling and condensing performances, by making the shape of fins provided to the heat transfer wall in a special design. CONSTITUTION:One or several stripes of channel 2 is (are) spirally provided to the outer surface of a heat transfer tube 1 at comparatively large pitches, and a number of fine tunnels 3, extending to the crossing direction with the channels 2, with their both ends being connected to the channels 2, are formed on the underside of the surfaces between these channels 2. On the other hand, a number of fine fins 4 having sharp tips 41, extending to the crossing direction with the channels 2 are formed on the surfaces between the channels 2 at small pitches. In regard to the heat transfer wall being formed in such a manner, when liquid cooling medium which is to be boiled is passed through the outer surface of each of tunnel 3, while a fluid of which temperature is comparatively high is passed through the inside of the tube, the wall acts as part of bubbles generated and grown from liquid, and the fins 4 raises ultra-large heat flux, as the outer surface area of a heat transfer wall is enlarged. In case that condensing cooling medium is circulated through the outside of a tube and cooling water is circulated through the inside of the tube, the liquid condensed by the fins 4 are sucked by the capillarity of tunnels 3 to make the liquid film on the wall surfaces of fins 4 thin, consequently, condensing action can be activated.
摘要翻译：目的：为了提供一种超过沸腾和冷凝性能的换热器的传热壁，通过将特殊设计的散热片形状设置在传热壁上。构成：通道2的一条或多条条以比较大的间距螺旋地设置在传热管1的外表面上，以及多个与通道2相交的方向延伸的细管3 两端连接到通道2上，形成在这些通道2之间的表面的下侧上。另一方面，在与通道2交叉的方向上延伸的尖锐的尖端41的多个细的散热片4形成在通道2之间的表面以小间距。关于以这种方式形成的传热壁，当要煮沸的液体冷却介质通过隧道3的外表面时，其中温度相对较高的流体通过管，壁作为从液体产生和生长的气泡的一部分，随着传热壁的外表面积增大，散热片4引起超大热通量。在冷凝冷却介质通过管的外部循环并且冷却水通过管的内部循环的情况下，由翅片4冷凝的液体被通道3的毛细管吸引，以使液膜在壁表面上的翅片4薄，因此，可以激活凝结作用。

6. 发明专利

JPS59119196A Boiling heat transfer wall 失效
标题翻译：锅炉换热器
公开(公告)号：JPS59119196A
公开(公告)日：1984-07-10
申请号：JP22936482
申请日：1982-12-27
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , KAKIZAKI KIMIO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAYAMA YOSHIHIKO
IPC分类号： F28F13/02 , F28F1/10 , F28F13/18
CPC分类号： F28F13/187
摘要： PURPOSE:To provide a heat transfer wall whose quality is stable and that is excellent in heat transfer property, by arranging, on the tips of fins of a finned surface, tapes whose width is wider than the pitch of the fins, and forming notches at the tips of the fins with a prescribed interval between them. CONSTITUTION:The tapes 4 are wound, and a plurality of tunnels 5 are formed under the tapes 4 and are separated by the fins 2. The upper parts of the tunnels 5 are in communication with each other via the notches 3 formed at the tips of the fins 2. Opening sections 6 are formed between the turns of the tapes 4 for allowing the tunnels 5 to be in communication with the outside. When a high temperature fluid is passed into the pipe 1 with the pipe 1 immersed in Fron liquid, since the tunnels 5 are communicated with the outside through the opening sections 6, the bubbles of vapour generated in the tunnels 5 would not immediately goes outside but remain there. Further since the involved heat is accumulated in the tunnels 5, and the internal temperature is raised concentrically, the bubbles of vapor are generated and grown efficiently in the tunnels 5, and the notches 3 that make the tunnels 5 in communication with each other assist the movement, association and growth of the bubbles of the vapor.
摘要翻译：目的：为了提供质量稳定且传热性优异的传热壁，通过在翅片表面的翅片的末端布置宽度大于翅片间距的带状物，并形成凹口翅片的尖端之间以规定的间隔。构成：带4被卷绕，并且多个通道5形成在带4的下方并被翅片2分开。隧道5的上部通过形成在尖端2处的凹口3彼此连通翅片2.开口部分6形成在带子4的匝之间，以允许隧道5与外部连通。当管道1浸入Fron液体中时，当高温流体进入管道1时，由于隧道5通过开口部分6与外部连通，所以在隧道5中产生的蒸汽气泡不会立即流出，但是留在那里此外，由于所涉及的热积聚在隧道5中，并且内部温度同心地升高，所以在隧道5中产生并有效地生长蒸气气泡，并且使隧道5彼此连通的凹口3有助于气泡的运动，结合和生长。

7. 发明专利

JPS6170391A Evaporating heat transfer wall 失效
标题翻译：蒸发热交换器墙
公开(公告)号：JPS6170391A
公开(公告)日：1986-04-11
申请号：JP19157884
申请日：1984-09-14
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： KUWABARA HEIKICHI , TAKAHASHI KENJI , YANAGIDA TAKEHIKO , NAKAYAMA HISASHI , SUGIMOTO SHIGEO , YOSHIDA HIROMICHI , OIZUMI KIYOSHI
IPC分类号： F28F13/02 , F28F1/10 , F28F1/12 , F28F1/40 , F28F13/18
CPC分类号： F28F13/18
摘要： PURPOSE:To improve the heat transfer performance by providing projections in the inner parts of opening communicating minute cavities with the external part, and determining, in a plan view of the evaporating heat transfer wall, the ratio of the projection area to the opening area to a specific ratio. CONSTITUTION:Below the surface of a heat transfer wall 1, which makes contact with a fluid, are provided a large number of adjacent fins, thin and long cavities at minute intervals, and a number of minute holes 5 which bring the cavities 2 into communication with the external part are disposed regularly along the longitudinal direction of the cavities 2 at the ceiling 4 of the cavities 2. Within the holes 5 are provided projections 6 protruding in a direction intercrossing holes 5 from the vicinities of holes including holes 5, respectively. When the heat transfer wall 1 is viewed in a plan, the ratio of the area of the projection 6 to the opening area is set in a range of from 0.4-0.8. As a result, the heat transfer efficiency is improved further and it can contribute to the miniaturization and the achievement of higher performance of apparatuses using the heat transfer wall.
摘要翻译：目的：通过在与外部开口连通的微小腔的内部部分提供突起来提高传热性能，并且在蒸发传热壁的平面图中确定投影面积与开口面积的比率具体比例。构成：在与流体接触的传热壁1的表面下方设有大量相邻的翅片，以较小间隔的薄且长的空腔，以及使空腔2进入通信的多个微孔5 外部部分沿着空腔2的空腔2的纵向方向规则地设置在空腔2的天花板4处。在孔5内设置有突出部6，突出部6沿着与包括孔5的孔附近的交叉孔5的方向突出。当在平面图中观察传热壁1时，突起6的面积与开口面积的比率被设定在0.4-0.8的范围内。结果，进一步提高了传热效率，并且能够有助于使用传热壁的设备的小型化和更高性能的实现。

8. 发明专利

JPS616595A Heat transfer pipe and manufacture thereof 失效
标题翻译：热交换管及其制造
公开(公告)号：JPS616595A
公开(公告)日：1986-01-13
申请号：JP12522484
申请日：1984-06-20
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： KUWABARA HEIKICHI , TAKAHASHI KENJI , YANAGIDA TAKEHIKO , NAKAYAMA HISASHI , SUGIMOTO SHIGEO , OOIZUMI KIYOSHI
IPC分类号： B21C37/15 , B21C37/20 , B21D53/06 , F28F1/08 , F28F1/12 , F28F1/40 , F28F1/42 , F28F13/18
CPC分类号： F28F1/42 , B21C37/207 , F28F1/422 , F28F1/426 , F28F13/185 , Y10T29/49265 , Y10T29/49382
摘要： PURPOSE:To obtain high quality of the heat transfer rate by inducing the turbulence in fluid as well as to obtain a heat transfer pipe having the heat transfer surface construction of high durability, by a method wherein protuberance of which side being continuous circle or ellipse shape having curvature, are provided at the inside of pipes, and rib shapes are formed incurvedsurface shapes. CONSTITUTION:Protuberances 3 are formed along curved lines 4 of spiral type in the inner wall surface of the heat transfer pipe. These protuberances 3 take the shape of circular protuberances 32 in front view, or ellipse type ptoruberances 34 or ellipse curved line shaped protuberances 36 of nonsymmetry similar to the crooss section of oval shape. Also about the shape of the section surface of higher part than the base of the protuberance, it takes similar shape with of each base, and the section area is decreased comparing to the base. The shape of the section is not angular line of the acute angle shape to distinguish the side of each rib, and is formed with curved line. Since the heat transfer is accelerated by protuberances which are formed in the inner wall of the pipe and having smooth curvature, the heat transfer pipe is difficult to receive the fluid pressure, the heat transfer rate is improved by very small fluid eddys which are induced by the protuberance having anti-corrosion quality and, moreover, smooth shape.
摘要翻译：目的：通过引起流体中的湍流以获得具有高耐久性的传热表面结构的传热管，从而获得高质量的传热速率，其方法是将连续圆形或椭圆形的凸起具有曲率，设置在管的内部，并且肋形状形成有凹凸形状。构成：在传热管的内壁面上形成螺旋状的曲线4。这些突起3在前视图中呈圆形的隆起32的形状，或类似于椭圆形的圆形部分的非对称的椭圆形状的圆锥体34或椭圆形的曲线形突起36。还有关于突起部分的高于部分的部分表面的形状，它与每个基部具有相似的形状，并且与基部相比，截面面积减小。该部分的形状不是锐角形状的角线，以区分每个肋的侧面，并且形成有曲线。由于传热通过形成在管内壁上并具有平滑曲率的突起加速，所以传热管难以接受流体压力，传热速率由非常小的流体涡流提高，这是由突起具有防腐蚀质量，而且具有光滑的形状。

9. 发明专利

JPS6189497A Heat transfer pipe 失效
标题翻译：换热管
公开(公告)号：JPS6189497A
公开(公告)日：1986-05-07
申请号：JP20829084
申请日：1984-10-05
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： TAKAHASHI KENJI , KUWABARA HEIKICHI , YANAGIDA TAKEHIKO , NAKAYAMA HISASHI , OIZUMI KIYOSHI , SUGIMOTO SHIGEO
IPC分类号： F28F1/40 , B21C37/20 , B21D17/04 , F28F1/44 , F28F13/18
CPC分类号： F28F13/185 , B21C37/20 , B21D17/04 , F28F1/44
摘要： PURPOSE: To form a face structure excellent in the heat transfer performance by pressing a roll having a projection row to the outer periphery from the outer surface of a heat transfer pipe, forming a large number of projection rows in which the side of the projection at the pipe inner side has a curvature, and determining the projection rows in numerical values.
CONSTITUTION: Projections 3 formed in a pipe inner wall surface 10 is formed by a smooth curve in such a manner that the tip end thereof is pressed by a gear-like roll 2 from the outside of the pipe so that the pipe wall material is plastically deformed. For this reason, the heat transfer promotion is carried out by the above projection, so that the pipe is difficult to undergo a fluid force and hence it has a corrosion resistance. Further, by forming the projection row in the range of the height e of the projection is 0.45W0.6mm, the circumferential pitch Z is 3.5W6mm, and further the axial pitch P is within 9mm, it is possible to make maximum the effect of a vertical vortex having an axis in the flow direction and generated in the flow passing the projection. Therefore, the single-phase heat transfer coefficient can be greatly improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过从传热管的外表面将具有突出排的辊压到外周来形成传热性能优异的面结构，形成多个突起行，其中突起的侧面为管内侧具有曲率，并且以数值确定投影行。构成：在管内壁面10上形成的突出部3以平滑的曲线形成，使其前端由齿轮状的辊2从管的外侧按压，使管壁材料成为塑性变形因此，通过上述突起进行热传递促进，使得管难于经受流体力，因此具有耐腐蚀性。此外，通过在突起的高度e的范围内形成突出列为0.45〜0.6mm，周向间距Z为3.5〜6mm，轴向间距P在9mm以内，可以使效果最大化具有在流动方向上的轴线并且在通过突起的流动中产生的垂直涡流。因此，可以大大提高单相传热系数。

10. 发明专利

JPS59176594A Heat transfer wall of boiling type and manufacture thereof 失效
标题翻译：锅炉类型及其制造热交换器
公开(公告)号：JPS59176594A
公开(公告)日：1984-10-05
申请号：JP4955083
申请日：1983-03-24
申请人： Hitachi Cable Ltd , Hitachi Ltd
发明人： YOSHIDA HIROMICHI , SASAKI SATOSHI , FUKUDA SHIGEO , KAKIZAKI KIMIO , NAKAYAMA HISASHI , OOGURO TAKAHIRO , NAKAJIMA TADAKATSU , NAKAYAMA YOSHIHIKO
IPC分类号： F28F13/02 , F28F1/12 , F28F13/18
CPC分类号： F28F13/187
摘要： PURPOSE:To increase the heat exchanging rate of a heat transfer wall of boiling type in the wide range of thermal loading, by providing multi-ply layers of tunnel to the surface of a heat transfer wall so that boiling action can be performed effectively. CONSTITUTION:A number of fine tunnels 3 are formed, crossing with channels 2, underneath the surfaces between the channels 2 which are spirally provided on the outer periphery of a heat transfer tube body 1 at large pitches, while on the surface of a tube a number of fine fins 4 are formed at small pitches, crossing with the channels 2. In addition the outer periphery of a heat transfer tube body 1 is wound and coated by thin tapes 5 continuously at intervals 6, and a number of fine tunnels 7 are formed underneath the tapes 5. When liquid cooling medium, which is to be boiled, is flowed along the outer surface of a tube, while a fluid in comparatively high temperature is passed through the inside of a tube, each tunnel 3 and 7 on the heat transfer wall, being formed as mentioned above, function as part of vapor bubbles generated and grown from liquid. The tunnels 3 in the lower layer are effectively acted when thermal loading is especially low, while the tunnels 7 on the upper layer are also effectively acted when the thermal loading is large, so that the heat transfer wall can show high heat transferring performance in wide range of thermal loadings.
摘要翻译：目的：通过在传热壁的表面提供多层隧道，以便有效地进行沸腾作用，从而在广泛的热负荷范围内提高沸腾传热壁的热交换率。构成：在传导管体1的外周部以大间距螺旋地设置的通道2之间的表面下方形成有许多细沟3与通道2交叉，而管a的表面细小翅片4的数量形成为与通道2交叉的小间距。此外，传送管主体1的外周以间隔6连续地被薄带5卷绕并且被涂覆，并且多个细管7 形成在带5下面。当要煮沸的液体冷却介质沿着管的外表面流动时，当较高温度的流体通过管的内部时，每个通道3和7在管如上所述形成的传热壁用作从液体生成和生长的蒸汽气泡的一部分。当热负载特别低时，下层的隧道3有效地起作用，而当热载荷大时，上层的隧道7也有效地起作用，使得传热壁可以在宽的范围内显示出高的传热性能热负荷范围。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式