CN100458346C - Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set - Google Patents
Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set Download PDFInfo
- Publication number
- CN100458346C CN100458346C CNB2005101320421A CN200510132042A CN100458346C CN 100458346 C CN100458346 C CN 100458346C CN B2005101320421 A CNB2005101320421 A CN B2005101320421A CN 200510132042 A CN200510132042 A CN 200510132042A CN 100458346 C CN100458346 C CN 100458346C
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- Prior art keywords
- fin
- scope
- heat
- exchanging pipe
- evaporating heat
- Prior art date
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- 238000001704 evaporation Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract description 8
- 229910052802 copper Inorganic materials 0.000 title abstract description 8
- 239000010949 copper Substances 0.000 title abstract description 8
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 title description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 title description 3
- 229910052794 bromium Inorganic materials 0.000 title description 3
- 230000007704 transition Effects 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 abstract description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 229940059936 lithium bromide Drugs 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A copper evaporation heat-exchange tube for evaporators of bromide refrigerating units comprises a fin part and polish rod parts at two ends of the fin part. On the fin part are disposed single-spiral fins and on the fins are opened secondary slots. The ratio of the fin width to the width of the fin slot bottom is 0.25-0.38.
Description
Technical field
The present invention relates to a kind of evaporating heat-exchanging pipe, relate in particular to a kind of copper-evaporating heat-exchanging pipe that is used for evaporator for bromine refrigerator set.
Background technology
Determine in the London CFC (Cholrofluorocarbons from June nineteen ninety, fluorine Lyons) restriction table service time in advance, developed country mustn't use before 2000, after developing country can prolong 10 years again, the research of no CFC substitute and application, develop rapidly, no CFC substitute green, environmental protection has obtained using widely gradually, and lithium-bromide absorption-type refrigerating machine is exactly one of them.Along with the progress of science and technology, the constantly bringing forth new ideas of new technology, new method bromizated lithium formula refrigeration machine to high efficiency, miniaturization, lightweight development, also should improve as the condenser tube of refrigeration critical component in the lithium-bromide absorption-type refrigerating machine thereupon.Condenser that prior art is produced is generally bronzing facial canal or other modified heat exchanger tube on this basis with pipe at present, can not satisfy the requirement of raising the efficiency, reducing cost, saving aspects such as the energy fully.Mainly there is following defective in existing condenser with pipe: 1. the copper pipe of prior art production mostly is the special-purpose copper pipe of non-lithium-bromide absorption-type refrigerating machine, the flowing law of incompatibility lithium-bromide absorption-type refrigerating machine inner fluid, therefore heat exchange property and energy exchange are unreasonable, and efficient is lower; 2. some heat exchanger tube is loaded onto a large amount of blade (being thin slice shape fin) to increase area of dissipation on normal optical face copper pipe, though increase than normal optical face copper pipe heat transfer efficiency, but the assembling fin not only increases cost on heat exchanger tube, and increased the overall weight of heat exchanger tube, and because fins set installs to and has thermal resistance on the heat exchanger tube, can not carry out heat exchange effectively, therefore can not reduce the temperature of working media in the heat exchanger tube apace; 3. also having some heat exchanger tubes is that processing slightly is trapezoidal fin on light pipe, and on the fin top surface, offer groove, increased area of dissipation though have the trapezoidal fin of groove, but when the groove of following of following condensing agent to fin, promptly can accumulate in the groove long-pending full until groove, therefore difficult in tube-surface formation heat exchange membranes, reduce the rate of heat exchange of pipe; 4. the length that has at present the transition portion of imperfect fin between the light face of pipe and the face with fin is about about 60mm, and the transition length of imperfect fin is big more, and incomplete fin is many more, just is unfavorable for the raising of condensation performance more.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of heat exchanger tube that forms evaporating film easily on the surface, accelerates evaporation efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: evaporating heat-exchanging pipe of the present invention, comprise fin portion, be positioned at the polished rod portion at fin portion two ends, described fin portion is provided with fin, described fin is the single-screw fin, offer the secondary groove that fin is divided into independent fin on the fin, the wide scope with the wide ratio of fin slot bottom of the wing of described fin is 0.25-0.38.
Preferably, the wing wide region of described fin is 0.2-0.4mm, and the wide scope of fin slot bottom is 0.55-0.75mm.
Preferably, the wing height of described fin is 0.5-0.8 with the scope of the ratio of the bottom wall thickness of fin portion.
Preferably, the high scope of the wing of described fin is 0.3-0.4mm, and the bottom wall thickness scope of fin portion is 0.5-0.65mm.
Preferably, the cross section of described fin is trapezoidal, and the first helical angle scope is 1 °-1.5 °.
Preferably, the groove depth scope of described secondary groove is 0.2-0.3mm.
Preferably, the scope of second helical angle of described secondary groove is 40 °-50 °, and the groove width scope of secondary groove is 0.15-0.35mm.
Preferably, the pitch of described fin is 19-40/inch, and the number range of described secondary groove is 80-120.
Preferably, also comprise the internal tooth of being located at inside pipe wall, the drift angle scope of described internal tooth is 30 °-50 °, and the scope of interior tooth height is 0.2-0.3mm.
Preferably, have transition part between polished rod portion and the fin portion, the length range of described transition part is 5-25mm.
Compared with prior art, the present invention has following technological merit: 1) offer the secondary groove again between the one-piece auger fin of the present invention, fin is created independent individuality, and each fin all is roughly prismatoid, the secondary groove shape is roughly the handstand prismatoid, therefore can circumferentially, axially reach along pipe rapidly when drop drops onto on fin and the heat exchanger tube and circumferentially expand the formation liquid film around fin, thereby help increasing fully contacting of cold-producing medium and heat-exchange tube surface, cold-producing medium is accelerated with the interior working media rate of heat exchange of pipe, and then accelerates condensation rate; 2) wing of heat-exchange tube ratio range wide and that the wing bottom land is wide is 0.25-0.35, and fin is the peripheral, oblique face with trapezoid cross section, therefore help decomposing the resistance to pressure that changes, improves system from the pressure of system, thereby under the frequent pressure of system changes, increase fatigue resistance, thereby improve the service life of heat-exchange tube; 3) less (L is 5～25mm) to excessive section L between the polished rod portion of heat-exchange tube and the fin portion, therefore the decreased number of imperfect fin has been equivalent to strengthen the size of radiator portion, has increased area of dissipation, improved the utilization rate of tubing, thereby radiating efficiency improves; 4) because cold-producing medium constantly drops onto tube-surface, formation liquid film, evaporation, therefore local cold and hot the hocketing of heat-exchange tube self, thereby cause little contraction and little expansion of heat-exchange tube self part, make the chilled water dirt that invests the heat pipe inner surface in the pipe, because of the difference of coefficient of dilatation comes off voluntarily, therefore heat-exchange tube of the present invention also has self-cleaning property, can not produce dirt and too much depend on the phenomenon that pipe internal surface produces obstruction.
Description of drawings
Fig. 1 is the schematic diagram of heat-exchange tube of the present invention.
Fig. 2 is the partial enlarged drawing of A part among Fig. 1.
Fig. 3 be among Fig. 1 B to partial enlarged drawing.
Fig. 4 is the schematic perspective view of single outer fin.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is described in detail.
Please refer to shown in Figure 1, heat-exchange tube 100 of the present invention comprises transition part 11 between the polished rod portion 1 at heat-exchange tube 100 two ends, fin portion 3, polished rod portion 1 and fin portion 3 at the band fin 31 between the two polished rod portions 1, is arranged at the internal tooth 33 of pipe internal surface, described fin 31 is the single-screw fin, and also offer secondary groove 32 on the fin 31, described secondary groove 32 is separated to form independently fin with fin 31.Preferably, heat-exchange tube of the present invention 100 is made by copper product.
The scope of the outer diameter D of polished rod of the present invention portion 1 is 12-26mm, and wall thickness T is 0.5-0.9mm, and the length L scope of described transition part 11 is 5-25mm.Because the length of the transition part of existing heat-exchange tube is at least 30mm, generally be about 60mm, therefore the number of the imperfect fin at transition part 11 places of heat-exchange tube 100 of the present invention is few compared to the imperfect fin number of existing heat-exchange tube, therefore strengthened the size of heat exchange section, thereby increased area of dissipation, improve the tubing utilization rate of heat-exchange tube, the efficient of heat exchange is higher.
Please refer to Fig. 2-shown in Figure 4, the fin 31 of heat-exchange tube 100 of the present invention is for being that the tube wall of 12-26mm processes through inner screw thread core print and rollings between three groups of system fin set of blades in outer diameter D, and the outward appearance of described fin 31 is similar to and is trapezoidal.The scope of the first normal direction angle (i.e. first helical angle) B1 between described fin 31 and exchange pipe 100 axis is 1 °-1.5 °, and the pitch FPI of fin 31 is a 19-40/inch, the height Fh1 scope of fin 31 is 0.3-0.4mm, the wide W3 scope of wing is 0.2-0.4mm, the diapire Tf scope that heat-exchange tube 100 is positioned at fin portion 3 is 0.5-0.65mm, described between fin 31 the wide W1 scope of bottom land be 0.55-0.75mm.
Described secondary groove 32 is similarly along the circumferential spiral of heat-exchange tube 100 and makes, and fin 31 is divided into independent fin, and described secondary groove 32 also can think to be arranged on the secondary fin on heat-exchange tube 100 excircles.The scope of the second helical angle B2 of secondary groove 32 is 40 °-50 °, the groove width W2 scope of secondary groove 32 is 0.15-0.35mm, the number N 2 of secondary groove 32 is between the 80-120, and the scope of the degree of depth of secondary groove 32 (being the distance between secondary groove 32 bottoms and fin 31 top surfaces) Fh2 is 0.2-0.3mm
Described internal tooth 33 is similar to triangular in shape, the drift angle B scope of internal tooth 33 is 30 °-50 °, internal tooth 33 height Rh scopes are 0.2-0.3mm, number N of teeth 1 is the 8-16 bar, offer internal tooth 33 at heat-exchange tube 100 inner surfaces, can help to increase the contact area between heat-exchange tube 100 inner surfaces and its inner chilled water, enlarge the heat exchange between chilled water and the heat-exchange tube 100.Certainly can understand, internal tooth 33 is not to be necessary for the present invention, can omit yet.
Because the outer surface of heat-exchange tube 100 is provided with fin 31 and fin 31 is separated into the secondary groove 32 of some independent fins, so help forming liquid film, accelerate the evaporation rate of liquid film, improve the heat exchange efficiency of heat-exchange tube at the outer surface of heat-exchange tube 100.Reason is as follows: when the lithium bromide coolant solution drops onto the outer surface of heat-exchange tube 100, because the hydrophilic interaction on surface, drop forms liquid film along the helicla flute of the first helical angle B1 direction, groove width W2, the second helical angle B2 and the wide W1 of wing bottom land of secondary groove 32 to rapid expansion all around.Preferably, fin and wing groove have trapezoidal shape, therefore help the quick formation of liquid film.
Ratio range between the bottom wall thickness Tf of high Fh1 of the wing of fin 31 of the present invention and fin portion 3 is 0.5-0.8, the ratio range of wide W3 of wing and the wide W1 of fin slot bottom is 0.25-0.38, this kind typical structure more helps the expansion of liquid film, the liquid film expansion is fast more, thermal resistance between liquid film and the heat-exchange tube 100 is more little, thereby heat transfer property is good more, helps the evaporation of lithium bromide more, improves refrigeration.
The present invention slightly is trapezoidal with the cross sectional shape of fin 31, and on trapezoidal fin 31, open secondary groove 32 and describe for example, the cross section of certain fin of the present invention 31 can also be other shapes, as triangle, rectangle etc., as long as the wide W3 of wing of fin 31 and the ratio range of the wide W1 of fin slot bottom are 0.25-0.38.
In addition, because the working media in the heat-exchange tube 100 is a chilled water, when the water quality dirt is attached to the inside pipe wall surface, the differentially expanding contraction that causes owing to heat-exchange tube 100 self heat, make that dirt is different with the contraction difference of heat-exchange tube 100 and dirt is come off from the inner surface of heat-exchange tube 100, therefore described heat-exchange tube has good automatically cleaning characteristic.
The above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. evaporating heat-exchanging pipe, comprise fin portion, be positioned at the polished rod portion at fin portion two ends, described fin portion is provided with fin, it is characterized in that: described fin is the single-screw fin, offer the secondary groove that fin is divided into independent fin on the fin, the wide scope with the wide ratio of fin slot bottom of the wing of described fin is 0.25-0.38.
2. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the wing wide region of described fin is 0.2-0.4mm, and the wide scope of fin slot bottom is 0.55-0.75mm.
3. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the wing height of described fin is 0.5-0.8 with the scope of the ratio of the bottom wall thickness of fin portion.
4. evaporating heat-exchanging pipe as claimed in claim 3 is characterized in that: the high scope of the wing of described fin is 0.3-0.4mm, and the bottom wall thickness scope of fin portion is 0.5-0.65mm.
5. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the cross section of described fin is trapezoidal, and the first helical angle scope of fin is 1 °-1.5 °.
6. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the groove depth scope of described secondary groove is 0.2-0.3mm.
7. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the scope of second helical angle of described secondary groove is 40 °-50 °, and the groove width scope of secondary groove is 0.15-0.35mm.
8. evaporating heat-exchanging pipe as claimed in claim 1 is characterized in that: the pitch of described fin is 19-40/inch, and the number range of described secondary groove is 80-120.
9. as each described evaporating heat-exchanging pipe among the claim 1-8, it is characterized in that: also comprise the internal tooth of being located at inside pipe wall, the drift angle scope of described internal tooth is 30 °-50 °, and the scope of interior tooth height is 0.2-0.3mm.
10. as each described evaporating heat-exchanging pipe among the claim 1-8, it is characterized in that: have transition part between polished rod portion and the fin portion, the length range of transition part is 5-25mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101320421A CN100458346C (en) | 2005-12-16 | 2005-12-16 | Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set |
| JP2006129695A JP2007163120A (en) | 2005-12-16 | 2006-05-08 | Evaporation type heat transfer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101320421A CN100458346C (en) | 2005-12-16 | 2005-12-16 | Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1982830A CN1982830A (en) | 2007-06-20 |
| CN100458346C true CN100458346C (en) | 2009-02-04 |
Family
ID=38165524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101320421A Active CN100458346C (en) | 2005-12-16 | 2005-12-16 | Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007163120A (en) |
| CN (1) | CN100458346C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041880A (en) * | 2007-08-10 | 2009-02-26 | Sumitomo Light Metal Ind Ltd | Water heat exchanger for water heater |
| CN101813433B (en) * | 2010-03-18 | 2012-10-24 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for condensation |
| CN108759184B (en) * | 2018-08-13 | 2024-05-10 | 珠海格力电器股份有限公司 | Condenser pipe and condenser |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458191A (en) * | 1994-07-11 | 1995-10-17 | Carrier Corporation | Heat transfer tube |
| CN2226744Y (en) * | 1995-01-08 | 1996-05-08 | 江苏远东波纹管集团公司 | Extrusion type joint continuous wave-shaped heat exchange tube |
| CN2322095Y (en) * | 1997-12-30 | 1999-06-02 | 陈慧明 | Reinforced heat conducting pipe for lithium bromide refrigerator |
| US6018963A (en) * | 1994-07-01 | 2000-02-01 | Hitachi, Ltd | Refrigeration cycle |
| CN2572325Y (en) * | 2002-09-28 | 2003-09-10 | 江苏萃隆铜业有限公司 | Heat-exchanging pipe for condenser |
| CN2572324Y (en) * | 2002-09-28 | 2003-09-10 | 江苏萃隆铜业有限公司 | Heat exchanging pipe for evaporator |
| CN2602333Y (en) * | 2002-11-05 | 2004-02-04 | 华南理工大学 | Helical fin intensiveheat transfer pipe |
| CN1143119C (en) * | 1995-07-12 | 2004-03-24 | 三洋电机株式会社 | Heat exchanger of refrigerating circulation |
| CN1546933A (en) * | 2003-12-05 | 2004-11-17 | 无锡市隆达铜业有限公司 | Abnormal internal/external thread metal pipe for heat transmitter |
-
2005
- 2005-12-16 CN CNB2005101320421A patent/CN100458346C/en active Active
-
2006
- 2006-05-08 JP JP2006129695A patent/JP2007163120A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6018963A (en) * | 1994-07-01 | 2000-02-01 | Hitachi, Ltd | Refrigeration cycle |
| US5458191A (en) * | 1994-07-11 | 1995-10-17 | Carrier Corporation | Heat transfer tube |
| CN2226744Y (en) * | 1995-01-08 | 1996-05-08 | 江苏远东波纹管集团公司 | Extrusion type joint continuous wave-shaped heat exchange tube |
| CN1143119C (en) * | 1995-07-12 | 2004-03-24 | 三洋电机株式会社 | Heat exchanger of refrigerating circulation |
| CN2322095Y (en) * | 1997-12-30 | 1999-06-02 | 陈慧明 | Reinforced heat conducting pipe for lithium bromide refrigerator |
| CN2572325Y (en) * | 2002-09-28 | 2003-09-10 | 江苏萃隆铜业有限公司 | Heat-exchanging pipe for condenser |
| CN2572324Y (en) * | 2002-09-28 | 2003-09-10 | 江苏萃隆铜业有限公司 | Heat exchanging pipe for evaporator |
| CN2602333Y (en) * | 2002-11-05 | 2004-02-04 | 华南理工大学 | Helical fin intensiveheat transfer pipe |
| CN1546933A (en) * | 2003-12-05 | 2004-11-17 | 无锡市隆达铜业有限公司 | Abnormal internal/external thread metal pipe for heat transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007163120A (en) | 2007-06-28 |
| CN1982830A (en) | 2007-06-20 |
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Denomination of invention: Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set Effective date of registration: 20171215 Granted publication date: 20090204 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Wuxi Golden Dragon Kawamura Precision Tube Co., Ltd.|Chongqing Longyu Precision Copper Tube Co., Ltd.|Henan Longhui Copper Industry Co., Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co., Ltd.|Xinxiang Longteng Refrigeration Technology Co.,Ltd.|Jiangsu Canghuan Copper Industry Co.,Ltd.|Jinlong Precision Copper Pipe Group Co., Ltd.|Guangdong Longfeng Precise Copper Tube Co., Ltd. Registration number: 2017990001045 |
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Address after: 404000 588 Airport Road, Wanzhou District, Chongqing (Wanzhou Economic Development Zone) Patentee after: Jinlong Precision Copper Pipe Group Co., Ltd. Address before: 453000 No. 191 Renmin West Road, Henan, Xinxiang Patentee before: Jinlong Precision Copper Pipe Group Co., Ltd. |
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Date of cancellation: 20190814 Granted publication date: 20090204 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: 2017990001045 |
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Denomination of invention: Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set Effective date of registration: 20190830 Granted publication date: 20090204 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: Y2019990000127 |