CN1624412A - Boiling heat-transfer tube and making method thereof - Google Patents
Boiling heat-transfer tube and making method thereof Download PDFInfo
- Publication number
- CN1624412A CN1624412A CNA2004100310466A CN200410031046A CN1624412A CN 1624412 A CN1624412 A CN 1624412A CN A2004100310466 A CNA2004100310466 A CN A2004100310466A CN 200410031046 A CN200410031046 A CN 200410031046A CN 1624412 A CN1624412 A CN 1624412A
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- heat transfer
- cavity
- transfer pipe
- boiling heat
- fin
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
- F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/068—Shaving, skiving or scarifying for forming lifted portions, e.g. slices or barbs, on the surface of the material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a boiling heat transfer tube having improved heat transfer performance by improving the wettability of refrigerant liquid to accelerate nuclear boiling, and to provide its manufacturing method. On the outer peripheral face of a tube 2, fins 3 are formed by continuing spading and bending in such a manner that a spiral or annular cavity portion 31 is formed in the circumferential direction thereof. At the front ends of the fins 3, grooves 35 are formed with protruded portions 33 and recessed portions 34 by using a grooved roll for applying suppressing pressure. The grooves 35 have holes 32 at preset spaces in communication with the outside (refrigerant liquid).
Description
Technical field
The present invention relates to boiling heat transfer pipe and manufacture method thereof, particularly can improve the boiling heat transfer pipe and the manufacture method thereof of the heat transfer property of the heat-transfer pipe that makes described refrigerant liquid ebuillition of heated under the state in impregnated in the refrigerant liquid of large-scale refrigerator.
Background technology
Large-scale refrigerator such as turbo refrigerating machine or spiral freezer has evaporimeter, uses the boiling heat transfer pipe in this evaporimeter.The boiling heat transfer pipe is used for the ebuillition of heated refrigerant liquid, and it is immersed in the interior refrigerant liquid of evaporimeter.Therefore the very important point is to carry out heat exchange effectively concerning the boiling heat transfer pipe, proposes to form on the pipe outer peripheral face scheme of helical form fin (Off イ Application fin) etc.For example on the outer surface of pipe, form fin, be provided with the otch that forms the hole on the top of this fin, this fin top overwhelmed back formation can carry out the cavity of boiling heat transfer effectively (for example with reference to patent documentation 1: special public clear 53-25379 communique, patent documentation 2: the spy opens flat 11-316096 communique, patent documentation 3: Te Kaiping: the 1-60332 communique).
Figure 4 shows that existing boiling heat transfer pipe.The technological thought that this boiling heat transfer pipe 100 is put down in writing based on patent documentation 1, the near surface of the metal tube 101 even at thickness, that heat conductivity is good form the hollow cavity 102 with regulation cross sectional shape with predetermined distance.And, in cavity 102, with the direction of cavity 102 quadratures on form the hole 103 that is communicated with outside (refrigerant liquid) with predetermined distance.
The total area in hole 103 is set at 2～50% with the ratio of the gross area of outer surface.In addition, cavity 102 has the function that promotes boiling, by the aperture area in suitable setting hole 103, can guarantee to have in the cavity 102 the residual vapor bubble.
Figure 5 shows that other existing boiling heat transfer pipe.The cross section of this boiling heat transfer pipe 200 cavity 202 roughly triangular in shape and hollow forms parallel groove at the near surface of metal tube 201 with predetermined distance.And the top is formed with the gap 203,204 (with cavity 202 internal communication) of prescribed depth with interconnecting in length and breadth separately on cavity 202, and is communicated with cavity 202 respectively (for example with reference to patent documentation 4: special public clear 64-2878 communique).
After forming spiral helicine U-lag on the outer surface of metal tube 201, make it to be out of shape the back by the upper end of compressing U-lag and form cavity 202.The width in gap 203,204 is at 0.13mm or following, thereby can guarantee that residual bubble is arranged in the cavity 202.
In addition, the manufacture method of boiling heat transfer pipe comprises the grooving formation dish that cutting teeth is tilted, push described cutting teeth outside on the fin, form spiral helicine outside fin when utilizing the pressing part of this cutting teeth to be staggered to form the recess of fin and protuberance in a circumferential direction, and utilize a plurality of fin formation dishes to suppress reduce (for example with reference to patent documentation 3,5: the spy opens flat 7-151485 communique) of outside fin tip section area.Can suppress fin tip section area like this and reduce, thereby improve heat transfer property effectively.
Yet in recent years the heat exchanger high performance and the requirement of miniaturization, the present heat transfer property of existing boiling heat transfer pipe is not ideal enough, thereby requires further to improve its performance.For example, the heat-transfer pipe of patent documentation 1 can utilize cavity to carry out nuclear boiling (being the boiling that complex produces bubble with the blow point) well, but is difficult to heat the vapour bubble that spins off from the hole and refrigerant liquid on every side, thereby is difficult to improve heat transfer property.
And the heat-transfer pipe of patent documentation 2,3,4 also is formed with cavity on tube axial direction, thus refrigerant liquid during from the cavity of this cavity inflow pipe Zhou Fangxiang (circumferencial direction) pressure loss become big.In addition, the staggered part of cavity of the cavity of tube axial direction and pipe Zhou Fangxiang is open state, the part of refrigerant liquid is from the cavity of the pipe Zhou Fangxiang of cavity inflow the carrying out nucleateboiling of tube axial direction, thereby nucleateboiling is hindered easily in this part.
And above-mentioned boiling heat transfer pipe is that a plurality of heat-transfer pipes of configuration use in being full of the shell of refrigerant liquid.Therefore, the heat-transfer pipe that is configured in top is configured in the formed bubble of boiling that the heat-transfer pipe of bottom causes and covers, thereby the wetability variation of refrigerant liquid, can't bring into play original performance.
Summary of the invention
The purpose of this invention is to provide a kind of boiling heat transfer pipe and the manufacture method thereof that can improve the wetability of refrigerant liquid and improve heat transfer property by the promotion nucleateboiling.
To achieve these goals, the 1st technical scheme of the present invention provides a kind of boiling heat transfer pipe, and it comprises tube body, for scooping up fin that described tube body outer peripheral face forms at the cavity that forms helical form or ring-type on the circumferencial direction of described tube body outer peripheral face continuously, pushing the groove that forms behind the described fin top and be formed on the described groove and make a plurality of holes of described cavity and external communications with predetermined distance.
According to this structure, on the cavity that is formed on the tube body outer peripheral face circumferencial direction, form fin, top at this fin forms groove, and on groove, form the hole, thereby effectively heating is impregnated with the refrigerant liquid of boiling heat transfer pipe, and when promoting the refrigerant liquid boiling, the disengaging of vapour bubble and the inflow of refrigerant liquid are carried out smoothly, thereby obtain the good heat transfer performance by the wetability of improving refrigerant liquid, and can realize the high performance and the miniaturization of heat exchanger.
To achieve these goals, the 2nd technical scheme of the present invention provides a kind of manufacture method of boiling heat transfer pipe, on the circumferencial direction of tube body outer peripheral face, form the cavity of helical form or ring-type, use planing tool (バ イ ト bite) on described circumferencial direction, to scoop up the top of described cavity continuously and form fin, form groove after utilizing grooved cylinder to push the top of described fin, on described groove, form the hole that makes described cavity and external communications simultaneously with predetermined distance.
According to this method, use planing tool on the cavity that is formed on the tube body outer peripheral face circumferencial direction, to form fin, and use grooved cylinder to form groove on the top of fin, on groove, form the hole, thereby effectively heating is impregnated with the refrigerant liquid of boiling heat transfer pipe, and when promoting the refrigerant liquid boiling, the disengaging of vapour bubble and the inflow of refrigerant liquid are carried out smoothly, thereby improve the wetability of refrigerant liquid and obtain the good heat transfer performance, the result can realize the high performance and the miniaturization of heat exchanger.
According to boiling heat transfer pipe of the present invention and manufacture method thereof, form groove at outer peripheral face upper edge circumferencial direction, by this groove refrigerant liquid is effectively heated, when promoting the refrigerant liquid boiling, the disengaging of the cold-producing medium bubble of following nucleateboiling and the inflow of refrigerant liquid are carried out smoothly, thereby obtain the good heat transfer performance, and can realize using the high performance and the miniaturization of the heat exchanger of boiling heat transfer pipe.
Description of drawings
Fig. 1 is the stereogram of the boiling heat transfer pipe of the expression embodiment of the invention.
Fig. 2 is the vertical view of the boiling heat transfer pipe of presentation graphs 1.
Fig. 3 is the groove processing and the hole processing of fin in the manufacture process of boiling heat transfer pipe of the expression embodiment of the invention, and wherein (a) is the stereogram of expression fin groove processing, (b) is that expression utilizes grooved cylinder to carry out the stereogram that the hole processes.
Fig. 4 is the stereogram that is expressed as existing boiling heat transfer pipe.
Fig. 5 is the stereogram that is expressed as its existing boiling heat transfer pipe.
The specific embodiment
Illustrated in figures 1 and 2 is the boiling heat transfer pipe of the embodiment of the invention.Boiling heat transfer pipe 1 structurally comprises the pipe 2 of metal tube of the copper that uses heat transfer property good, copper alloy, aluminium etc. and the fin 3 that utilizes machining tool such as planing tool to scoop up at the near surface of this pipe 2.
Fin 3 has cavity 31 that forms helical form or ring-type on the circumferencial direction of pipe 2 and the hole 32 that this cavity 31 is communicated with predetermined distance with outside (refrigerant liquid).The surface of fin 3 is the male and fomale(M﹠F)s that form protuberance 33 and recess 34 between hole 32 and hole 32 in turn, and the one side of protuberance 33 is set to the inclined plane.
The above-mentioned angle optimum value that to be vapour bubble can carry out to the inflow of cavity 31 smoothly from refrigerant liquids such as the disengaging of cavity 31 and water.The vapour bubble that spins off is when the direction opposite with gravity moves, if parallel with tubular axis (0 °), protuberance 33 produces resistance, and the disengaging of bubble is difficult to carry out smoothly.And more than 60 ° the time, hole 32 becomes elongated, and the disengaging of bubble still is difficult to carry out smoothly.Therefore, 10～60 ° angle is proper.In addition, surface area reduces if the degree of depth of recess 34 is crossed shallow, becomes big if cross resistance dark then when utilizing grooved cylinder etc. to form hole 32, the processing of cavity 31 difficulty that becomes.Therefore, the degree of depth of groove 35 is that 0.1～0.5mm is proper.
And cavity 31 forms with predetermined distance on tube axial direction.The nucleateboiling zone reduces if the interval of tube axial direction is too small, and the heat if the interval is excessive from heat conductive wall is conducted variation.Therefore, tube axial direction to be spaced apart 0.1～0.8mm proper.
Refrigerant liquids such as water are by the internal face heating of cavity 31.Refrigerant liquid produces vapour bubble owing to heating is seethed with excitement actively in cavity 31.This vapour bubble expands and begins to begin to break away from by a plurality of holes 32 after to a certain degree the size, but by reducing the size in hole 32, vapour bubble does not all break away from, and the part of vapour bubble becomes minute bubbles and remains in the cavity 31.
On the other hand, in protuberance 33 and recess 34, because the surface area ratio smooth surface increases, thereby heating and cooling agent liquid effectively.In addition, flow in the cavity 31 from recess 34 with the refrigerant liquid of the corresponding amount of vapour bubble that breaks away from.New flow into the refrigerant liquids in the cavity 31, thereby just can make it reach boiling temperature with less heat because temperature rises by the side wall surface heating of the groove 35 of outside in advance before inflow.Therefore, be complex with residual bubble in the cavity 31, vapour bubble expands rapidly.
Littler from the cavity 31 interior vapour bubbles that break away from than the density of refrigerant liquid, thereby be moved upward.Flow in the cavitys 31 from recess 34 with the corresponding refrigerant liquid of this bubble, because this part is low-lying, it is different that the route that vapour bubble comes out in the cavity 31 and heated liquid flow into the interior route of cavity 31, thereby refrigerant liquid can flow in the cavity 31 smoothly.
Generally speaking, the heat-transfer pipe that is used for water is assembled with many in housing, but boiling heat transfer pipe 1 according to said structure, be formed with spiral helicine minute grooves 35 on its outer peripheral face, even thereby be assembled into the top of heat exchanger, the bubble that the below produces also is difficult to invade recess 34, and refrigerant liquid is wetting good, therefore compares with existing structure and can improve heat transfer efficiency.
Fig. 3 represents the groove processing and the hole processing of fin in boiling heat transfer pipe 1 manufacture process.The following manufacture method that boiling heat transfer pipe 1 is described according to Fig. 3.
At first prepare the pipe 2 that the level and smooth and the inside of outer peripheral face has processed groove 2a.Groove 2a is formed by the rib 2b that forms helical form or ring-type on predetermined distance.This rib 2b is indispensable to the heat transfer that promotes tube fluid.
Then, shown in Fig. 3 (a), using nose angle is 60 ° planing tool 41, and pipe 2 is moved along tube axial direction, scoop up fin 3, and the interval of incision angle, approach and the formed fin 3 of regulation is prescribed level.At this, the incision angle of planing tool 41 is 24 °, and approach is 0.35mm.In addition, adjust the velocity of rotation of planing tool 41 and the translational speed of pipe 2, make cavity 31 on tube axial direction, be spaced apart 0.5mm.Utilize as above that the planing tool 41 of shape and using method scoops up fin 3, thereby the relative tubular axis out of plumb in the top of fin 3, but form the shape of inclination according to the nose angle of planing tool 41.
Then, shown in Fig. 3 (b), will along the circumferential direction be provided with the grooved cylinder 42 of skewed slot 42a by on the outer surface that is pressed in pipe 2 with predetermined distance.By pressure pipe 2 grooved cylinder 42 is rotated along the circumferencial direction of pipe 2 on one side, simultaneously along tube axial direction tractive pipe 2, thus the top of pushing fin 3 by grooved cylinder 42.Like this, forming the degree of depth on the outer peripheral face of pipe 2 is the groove 35 at 0.2mm, relative tubular axis angle at 45, forms cavity 31 simultaneously.At this moment, the protuberance 33 of the groove 35 of outer peripheral face bends under the restriction of the groove 42a of grooved cylinder 42, and outstanding to adjacent protuberance 33.Adjust the amount of being pressed into of grooved cylinder 42, make this overhang can reach adjacent protuberance 33, and the hole 32 of UNICOM's cavity 31 and outside is not blocked.
So just can obtain the boiling heat transfer pipe 1 illustrated in figures 1 and 2 that cavity continuous on pipe Zhou Fangxiang 31 relative tubular axis tilt to extend.The refrigerant liquid that flows in the cavity 31 is heated the back boiling in cavity 31, and produces vapour bubble actively.In addition, because relatively the angled protuberance 33 of tubular axis and recess 34 route that vapour bubble is come out in the cavity 31 is different with the route of heated liquid inflow, thereby flow into the refrigerant liquid of the corresponding amount of vapour bubble that detaches, and refrigerant liquid can heat refrigerant liquid when the inflow of cavity 31 is carried out smoothly effectively.Therefore, be complex with residual vapour bubble in the cavity 31, vapour bubble expands rapidly.In addition, protuberance 33 and recess 34 form spiral helicine minute grooves 35 on the outer surface of boiling heat transfer pipe 1, therefore along with the vapour bubble that breaks away from cavity 31 moves up while being stirred, refrigerant liquid on every side also is stirred, thereby can alleviate the inhomogeneous of refrigerant liquid temperature.As mentioned above, the boiling heat transfer pipe 1 of the embodiment of the invention can improve heat transfer efficiency.
Claims (6)
1. boiling heat transfer pipe, it is characterized in that, comprise tube body, for the cavity that forms helical form or ring-type on the circumferencial direction of described tube body outer peripheral face scoops up fin that described tube body outer peripheral face forms continuously, pushes the groove that described fin top forms, and be formed on the described groove and make a plurality of holes of described cavity and external communications with predetermined distance.
2. boiling heat transfer pipe as claimed in claim 1 is characterized in that, described cavity interval with 0.1～0.8mm on tube axial direction is provided with.
3. boiling heat transfer pipe as claimed in claim 1 is characterized in that, the relative tubular axis of described groove has 10～60 ° inclined plane, and the degree of depth is 0.1～0.5mm.
4. boiling heat transfer pipe as claimed in claim 1 is characterized in that the inner face of described tube body is provided with the helical form rib.
5. the manufacture method of a boiling heat transfer pipe, it is characterized in that, on the circumferencial direction of described tube body outer peripheral face, form the cavity of helical form or ring-type, use planing tool on described circumferencial direction, to scoop up the top of described cavity continuously and form fin, use grooved cylinder to push the top of described fin and form groove, on described groove, form the hole that makes described cavity and external communications simultaneously with predetermined distance.
6. as the manufacture method of claim 5 boiling heat transfer pipe, it is characterized in that the relative tubular axis of described groove has 10～60 ° inclined plane, and the degree of depth is 0.1～0.5mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003403679 | 2003-12-02 | ||
| JP2003403679A JP4389565B2 (en) | 2003-12-02 | 2003-12-02 | Boiling heat transfer tube and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1624412A true CN1624412A (en) | 2005-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100310466A Pending CN1624412A (en) | 2003-12-02 | 2004-04-12 | Boiling heat-transfer tube and making method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4389565B2 (en) |
| CN (1) | CN1624412A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338987B (en) * | 2007-07-06 | 2011-05-04 | 高克联管件(上海)有限公司 | Heat transfer pipe for condensation |
| CN102152072A (en) * | 2011-02-25 | 2011-08-17 | 天津商业大学 | Method for machining porous-surface heat-exchange pipe for boiling heat-transfer equipment |
| CN101793475B (en) * | 2009-02-04 | 2012-02-15 | 威兰德-沃克公开股份有限公司 | Heat transfer tube and method for its production |
| CN102735089A (en) * | 2011-04-02 | 2012-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat transfer pipe, and heat and mass transfer equipment having heat transfer pipe |
| CN103047891A (en) * | 2012-12-20 | 2013-04-17 | 苏州新太铜高效管有限公司 | Falling film evaporating pipe with netlike outer surface |
| CN105716467A (en) * | 2016-02-25 | 2016-06-29 | 浙江大学 | Intelligent boiling surface and boiling control method thereof |
| CN107192294A (en) * | 2017-07-05 | 2017-09-22 | 江苏萃隆精密铜管股份有限公司 | High finned heat-exchange tube |
| CN109099741A (en) * | 2018-06-05 | 2018-12-28 | 东南大学 | A kind of heat exchange structure for strengthening boiling |
| CN109974513A (en) * | 2019-03-28 | 2019-07-05 | 大连理工大学 | A kind of minute yardstick collaboration surface texture of enhanced boiling heat transfer |
| CN110612426A (en) * | 2017-05-12 | 2019-12-24 | 开利公司 | Internally enhanced heat exchanger tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5618419B2 (en) | 2011-06-13 | 2014-11-05 | 株式会社日立製作所 | Boiling cooling system |
| DE112016006181T5 (en) | 2016-01-08 | 2018-09-20 | Mitsubishi Electric Corporation | Siedekühlvorrichtung and Siedekühlsystem |
| CN107131785B (en) * | 2017-06-17 | 2023-05-16 | 福建德兴节能科技有限公司 | High-efficiency rotational flow spoiler |
| JP7164557B2 (en) * | 2020-02-25 | 2022-11-01 | 株式会社Kmct | Boiling heat transfer tube |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325379B2 (en) * | 1974-10-21 | 1978-07-26 | ||
| JPS60181593U (en) * | 1984-05-11 | 1985-12-02 | 株式会社日立製作所 | heat exchange wall |
| JPS63172892A (en) * | 1987-01-12 | 1988-07-16 | Sumitomo Light Metal Ind Ltd | Heat transfer pipe for evaporation and its manufacture |
| JPH04369391A (en) * | 1991-06-14 | 1992-12-22 | Kobe Steel Ltd | Structure of heat transfer pipe for boiling |
| JPH06323778A (en) * | 1993-05-12 | 1994-11-25 | Kobe Steel Ltd | Heating tube for use in boiling |
| JP3606284B2 (en) * | 1993-11-30 | 2005-01-05 | 株式会社神戸製鋼所 | Boiling type heat transfer tube |
| JP2003287392A (en) * | 2002-03-28 | 2003-10-10 | Kobe Steel Ltd | Boiling type heat transfer pipe |
-
2003
- 2003-12-02 JP JP2003403679A patent/JP4389565B2/en not_active Expired - Fee Related
-
2004
- 2004-04-12 CN CNA2004100310466A patent/CN1624412A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338987B (en) * | 2007-07-06 | 2011-05-04 | 高克联管件(上海)有限公司 | Heat transfer pipe for condensation |
| CN101793475B (en) * | 2009-02-04 | 2012-02-15 | 威兰德-沃克公开股份有限公司 | Heat transfer tube and method for its production |
| CN102152072A (en) * | 2011-02-25 | 2011-08-17 | 天津商业大学 | Method for machining porous-surface heat-exchange pipe for boiling heat-transfer equipment |
| CN102152072B (en) * | 2011-02-25 | 2012-11-07 | 天津商业大学 | Method for machining porous-surface heat-exchange pipe for boiling heat-transfer equipment |
| CN102735089A (en) * | 2011-04-02 | 2012-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat transfer pipe, and heat and mass transfer equipment having heat transfer pipe |
| CN103047891B (en) * | 2012-12-20 | 2014-11-05 | 苏州新太铜高效管有限公司 | Falling film evaporating pipe with netlike outer surface |
| CN103047891A (en) * | 2012-12-20 | 2013-04-17 | 苏州新太铜高效管有限公司 | Falling film evaporating pipe with netlike outer surface |
| CN105716467A (en) * | 2016-02-25 | 2016-06-29 | 浙江大学 | Intelligent boiling surface and boiling control method thereof |
| CN110612426A (en) * | 2017-05-12 | 2019-12-24 | 开利公司 | Internally enhanced heat exchanger tube |
| CN110612426B (en) * | 2017-05-12 | 2022-05-17 | 开利公司 | Heat transfer tube for heating, ventilating, air conditioning and refrigerating system |
| CN107192294A (en) * | 2017-07-05 | 2017-09-22 | 江苏萃隆精密铜管股份有限公司 | High finned heat-exchange tube |
| CN107192294B (en) * | 2017-07-05 | 2022-12-06 | 江苏萃隆精密铜管股份有限公司 | High-fin heat exchange tube |
| CN109099741A (en) * | 2018-06-05 | 2018-12-28 | 东南大学 | A kind of heat exchange structure for strengthening boiling |
| CN109974513A (en) * | 2019-03-28 | 2019-07-05 | 大连理工大学 | A kind of minute yardstick collaboration surface texture of enhanced boiling heat transfer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4389565B2 (en) | 2009-12-24 |
| JP2005164126A (en) | 2005-06-23 |
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