CN1332356A - Refrigerant tube for heat exchanger - Google Patents
Refrigerant tube for heat exchanger Download PDFInfo
- Publication number
- CN1332356A CN1332356A CN01120023A CN01120023A CN1332356A CN 1332356 A CN1332356 A CN 1332356A CN 01120023 A CN01120023 A CN 01120023A CN 01120023 A CN01120023 A CN 01120023A CN 1332356 A CN1332356 A CN 1332356A
- Authority
- CN
- China
- Prior art keywords
- refrigerant tube
- refrigerant
- heat exchanger
- mentioned
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 94
- 238000001816 cooling Methods 0.000 claims abstract description 5
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Classifications
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
-
- 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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provided a cooling tube projected on the inner peripheral surface of the refrigerant tube, is formed so as to be most suitable to a refrigerant tube having a reduced outer diameter. The object of the present invention is to provide a refrigerant tube having several advantages expected from small-diameter refrigerant tubes, such as a reduction in air-side pressure loss, and improves heat transfer efficiency of the heat exchangers. This refrigerant tube thus enhances the heat exchange operational performance of the heat exchangers. The solution of the present invention is that a refrigerant tube for heat exchangers which couples a plurality of heat dissipation fins for heat exchange between the refrigerant and air. The refrigerant tube has an outer diameter of not larger than 5.3 mm, with a plurality of internal spiral fins formed on the inner surface of the refrigerant tube.
Description
Invention field
The present invention relates to the refrigerant tube of heat exchanger, particularly relate on the inner circumferential surface of pipe outstanding many spiral helicine fins, the refrigerant tube in the heat exchanger that when refrigerant flows through, carries out using in the air-conditioner that exchange heat uses.
Background technology
The heat exchanger that general air-conditioner is used as shown in Figure 1, it constitutes, portion has and can allow the refrigerant tube 11 of flow of refrigerant within it, and above-mentioned refrigerant tube 11 is installed in top many cooling fins 3 to run through state, and the refrigerant and refrigerant tube 11 ambient airs that flow through above-mentioned refrigerant tube 11 carry out heat exchange.
The refrigerant tube that is used for heat exchanger 11 in the past as shown in Figures 2 and 3, its external diameter is 7 or 9mm, give prominence to many fins 13 within it on the circumferential surface, between above-mentioned each fin 13, be respectively equipped with groove, by means of above-mentioned fin 13 and groove 15, increase the heat transfer area of refrigerant tube 11 inside, confused the temperature boundary layer, promoted to flow through the refrigerant of refrigerant tube 11 and the heat exchange between refrigerant tube 11 ambient airs.
Promptly, by means of above-mentioned fin 13 and groove 15, increased with the area that adds the refrigerant tube that contacts again of liquid condition or steam condition, even the refrigerant that flow velocity is low has also strengthened the intensity of the turbulent flow of the liquid film of formation in pipe owing to capillarity and shear stress, and, sheet number and shape by means of above-mentioned fin 13, can change refrigerant and inside pipe wall surface contact area, the turbulence intensity of liquid film, and the thickness of liquid film.
Therefore, when making above-mentioned refrigerant tube 11, must match, select best fin number, the height of fin, the drift angle degree of fin, and the machined parameters of the helical angle of fin etc. with the purposes of above-mentioned fin 13.
Because the shape of above-described fin also not have the design of typing, so that the best of breed of in fact various parameters will come according to experiment is definite.
In other words, above-mentioned fin will be tested along with the variation of various machined parameters, and from the amount of refrigerant and the kind of refrigerant, and a use part of the various heat exchangers of external environment condition or the like sets out, and seeks out best combination, designs.
The existing refrigerant tube 11 that is used for heat exchanger that designs in this way, when its external diameter is 7mm or 9mm, pipe thickness t
1During for 0.27mm, the fin 13 that protrudes in its inner circumferential surface is 60, height H
1Be 0.15mm, apex angle ss
1Be 56 °, pitch angle alpha will
1It is 18 °.
Yet, recently for the manufacturing cost that reduces heat exchanger and the pressure loss that reduces air side, the trend that above-mentioned refrigerant tube 11 external diameters occurred dwindling.
; when dwindling the external diameter of above-mentioned refrigerant tube 11; if still continue to use the shape of the fin 13 in the original refrigerant tube 11; so; the pressure loss of above-mentioned refrigerant is increased; the efficient of heat exchange reduces, and also can produce the scope that exceeds the fin size that may process, makes the manufacturing of the refrigerant tube very difficult such problem that becomes.
In addition, the refrigerant tube 11 that uses on the above-described heat exchanger in the past, when design, do not consider original refrigerant is changed into the situation that substitutes refrigerant, if change the kind of refrigerant, the pressure loss and the heat transfer coefficient of refrigerant are changed, and generation can not be given full play to the problem of its performance.
Therefore, when dwindling the external diameter of above-mentioned refrigerant tube, should develop such refrigerant tube, it can be by means of best fin shape and number are set on refrigerant tube, in the pressure loss that reduces refrigerant, improve the heat transfer coefficient that it represents heat transfer property.
Summary of the invention
The present invention puts forward for addressing the above problem, its objective is provides a kind of like this refrigerant tube, this refrigerant tube is in reduced outside diameter, also by means of in reduced diameter refrigerant tube on the inner surface of refrigerant tube, form outstanding fin in optimal mode, the cost that makes the thinner refrigerant tube of diameter have to reduce heat exchanger and make the advantage of heat exchanger miniaturization, simultaneously can also improve heat transfer efficiency, reach the highest heat exchange property.
For achieving the above object, combine at of the present invention and many cooling fins, carry out between refrigerant and air in the refrigerant tube of heat exchanger of heat exchange, the external diameter of above-mentioned refrigerant tube is below 5.3mm, and circumferential surface is provided with many outstanding spiral helicine fins within it.
In addition, the pipe thickness according to refrigerant tube of the present invention is 0.16～0.2mm.
In addition, according to refrigerant tube of the present invention, the number of the fin on the outstanding circumferential surface within it is 40～50, and the helical angle of fin is 6～20 °, and the height of fin is 0.15～0.18mm, and the drift angle of fin is 38～42 °.
Description of drawings
Below, describe embodiments of the invention in detail with reference to accompanying drawing.In the accompanying drawing:
Fig. 1 is the stereogram of common heat exchanger;
Fig. 2 is the partial cut-out view according to the structure of the refrigerant tube of the heat exchanger of prior art;
Fig. 3 is according to the schematic partial sectional view after the structure amplification of the refrigerant tube of the heat exchanger of prior art;
Fig. 4 is the partial cut-out view according to the refrigerant tube structure of the heat exchanger of the embodiment of the invention;
Fig. 5 is the schematic partial sectional view according to the refrigerant tube of the heat exchanger of the embodiment of the invention.
The invention form of implementation
As shown in Figure 4 and Figure 5, in the refrigerant tube of heat exchanger of the present invention, in the refrigerant tube that is installed with the state that runs through on many cooling fins (not shown)s, the external diameter of above-mentioned refrigerant tube 51 is below 5.3mm, outstanding many fins 53 on the circumferential surface form groove 55 respectively between above-mentioned each fin within it.
And, the pipe thickness t of above-mentioned refrigerant tube 51 is 0.16～0.2mm, and the number that is arranged on the above-mentioned fin 53 on the inner circumferential surface of refrigerant tube 51 is 40～50, and helical angle (α) is 6～20 °, highly (H) is 0.15～0.18mm, and drift angle (β) is 38～42 °.
The pitch angle alpha will of above-mentioned fin is with at 6～10 °, and perhaps 16～20 ° for the most desirable.
In according to heat exchanger of the present invention, with use external diameter and compare as the heat exchanger of the refrigerant tube of 7mm or 9mm, because the reduced diameter of refrigerant tube 51 is 5.3mm, under same refrigerant flow, because the pressure loss of refrigerant one side has increased, and the thickness t of tube wall reduced, thus design be suitable for this reduced diameter the fin 53 of refrigerant tube the time, considered the pressure loss of above-mentioned refrigerant one side and reducing of pipe thickness.Experimental result learns that the pressure loss of refrigerant one side of above-mentioned refrigerant tube 51 has reduced, and the performance of heat exchange has improved, and can control the tolerance of fin when making refrigerant tube 51.
In addition, under the state identical with above-mentioned refrigerant tube 51 structures, even original refrigerant is changed into alternative refrigerant,, also can consider to use alternative refrigerant to design the shape of above-mentioned fin 53 because its pressure loss and heat transfer coefficient have all changed.
As mentioned above, refrigerant tube according to heat exchanger of the present invention, the reduced diameter of refrigerant tube, on the refrigerant tube after the reduced diameter, form suitable fin, have the manufacturing cost that reduces heat exchanger, make the heat exchanger miniaturization, and the whole advantages that reduce the thin diameter tube such as the pressure loss of air one side, thereby can improve the efficient of conducting heat by means of above-mentioned refrigerant tube, improve the performance of heat exchange to greatest extent.
Particularly, according to refrigerant tube of the present invention,,, in the pressure loss minimum that makes refrigerant one side, make that also the tolerance control when making refrigerant tube is easier by means of above-mentioned fin owing to designed the fin that is suitable for thin diameter tube.
Claims (5)
1. one kind combines with many cooling fins, between refrigerant of managing internal flow and ambient air, carry out the refrigerant tube of the heat exchanger of heat exchange, it is characterized in that, the external diameter of above-mentioned refrigerant tube is below 5.3mm, and circumferential surface is provided with many outstanding spiral helicine fins within it.
2. the refrigerant tube of heat exchanger as claimed in claim 1 is characterized in that, the pipe thickness of above-mentioned refrigerant tube is 0.16～0.2mm.
3. the refrigerant tube of heat exchanger as claimed in claim 1, it is characterized in that the number that is arranged on the above-mentioned fin on the inner circumferential surface of above-mentioned refrigerant tube is 40～50, fin height is 0.15～0.18mm, the fin drift angle is 38～42 °, and the fin helical angle is 6～20 °.
4. the refrigerant tube of heat exchanger as claimed in claim 3 is characterized in that, above-mentioned helical angle is 6～10 °.
5. the refrigerant tube of heat exchanger as claimed in claim 3 is characterized in that, above-mentioned helical angle is 16～20 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0038501A KR100382341B1 (en) | 2000-07-06 | 2000-07-06 | Heat exchanger |
| KR38501/2000 | 2000-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1332356A true CN1332356A (en) | 2002-01-23 |
| CN1188652C CN1188652C (en) | 2005-02-09 |
Family
ID=19676520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011200235A Expired - Fee Related CN1188652C (en) | 2000-07-06 | 2001-07-05 | Refrigerant tube for heat exchanger |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20020011332A1 (en) |
| JP (2) | JP2002062077A (en) |
| KR (1) | KR100382341B1 (en) |
| CN (1) | CN1188652C (en) |
| ES (1) | ES2228189A1 (en) |
| IT (1) | ITRM20010384A1 (en) |
| TW (1) | TW526322B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886459A (en) * | 2018-03-20 | 2020-11-03 | 三菱电机株式会社 | Heat exchanger, refrigeration cycle device, and air conditioner |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100885499B1 (en) * | 2002-07-15 | 2009-02-26 | 한라공조주식회사 | Heat exchanger |
| US10683865B2 (en) | 2006-02-14 | 2020-06-16 | Air Squared, Inc. | Scroll type device incorporating spinning or co-rotating scrolls |
| US11047389B2 (en) | 2010-04-16 | 2021-06-29 | Air Squared, Inc. | Multi-stage scroll vacuum pumps and related scroll devices |
| US20130232975A1 (en) | 2011-08-09 | 2013-09-12 | Robert W. Saffer | Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle |
| US20140224464A1 (en) * | 2012-06-05 | 2014-08-14 | Golden Dragon Precise Copper Tube Group Inc. | Enhanced condensation heat-transfer tube |
| DE112014002095T5 (en) * | 2013-04-23 | 2016-01-14 | Air Squared, Inc. | Compact energy cycle design using a combination of a hoist expander, pump and compressor operating according to a Rankine temperature scale, a Rankine organic temperature heat pump or a combined organic Rankine temperature and heat pump cycle |
| US10508543B2 (en) | 2015-05-07 | 2019-12-17 | Air Squared, Inc. | Scroll device having a pressure plate |
| US10865793B2 (en) | 2016-12-06 | 2020-12-15 | Air Squared, Inc. | Scroll type device having liquid cooling through idler shafts |
| CN112119219B (en) | 2018-05-04 | 2022-09-27 | 空气平方公司 | Liquid cooling of fixed and orbiting scroll compressors, expanders or vacuum pumps |
| US11067080B2 (en) | 2018-07-17 | 2021-07-20 | Air Squared, Inc. | Low cost scroll compressor or vacuum pump |
| US20200025199A1 (en) | 2018-07-17 | 2020-01-23 | Air Squared, Inc. | Dual drive co-rotating spinning scroll compressor or expander |
| US11530703B2 (en) | 2018-07-18 | 2022-12-20 | Air Squared, Inc. | Orbiting scroll device lubrication |
| US11473572B2 (en) | 2019-06-25 | 2022-10-18 | Air Squared, Inc. | Aftercooler for cooling compressed working fluid |
| CN111156745A (en) * | 2020-02-21 | 2020-05-15 | 顺德职业技术学院 | Variable-pipe-diameter composite-tooth-shaped internal thread reinforced pipe evaporator |
| CN111141068A (en) * | 2020-02-21 | 2020-05-12 | 顺德职业技术学院 | Condenser with variable-pipe-diameter composite tooth-shaped internal thread reinforced pipe |
| US11898557B2 (en) | 2020-11-30 | 2024-02-13 | Air Squared, Inc. | Liquid cooling of a scroll type compressor with liquid supply through the crankshaft |
| US11885328B2 (en) | 2021-07-19 | 2024-01-30 | Air Squared, Inc. | Scroll device with an integrated cooling loop |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723115B2 (en) * | 1986-07-24 | 1995-03-15 | 海洋科学技術センタ− | Submarine object collection device |
| JPH01299707A (en) * | 1988-05-27 | 1989-12-04 | Sumitomo Light Metal Ind Ltd | Manufacture of small and thin wall thickness heat transfer tube |
| MY110330A (en) * | 1991-02-13 | 1998-04-30 | Furukawa Electric Co Ltd | Heat-transfer small size tube and method of manufacturing the same |
| JPH08174044A (en) * | 1994-12-28 | 1996-07-09 | Kobe Steel Ltd | Production of small-diameter heat transfer tube with groove on inside surface |
| JPH09101093A (en) * | 1995-10-02 | 1997-04-15 | Mitsubishi Shindoh Co Ltd | Heat transfer pipe with inner surface groove |
-
2000
- 2000-07-06 KR KR10-2000-0038501A patent/KR100382341B1/en not_active IP Right Cessation
-
2001
- 2001-07-03 JP JP2001202455A patent/JP2002062077A/en active Pending
- 2001-07-03 IT IT2001RM000384A patent/ITRM20010384A1/en unknown
- 2001-07-05 CN CNB011200235A patent/CN1188652C/en not_active Expired - Fee Related
- 2001-07-05 ES ES200101568A patent/ES2228189A1/en active Pending
- 2001-07-06 TW TW090116555A patent/TW526322B/en not_active IP Right Cessation
- 2001-07-06 US US09/899,101 patent/US20020011332A1/en not_active Abandoned
-
2004
- 2004-11-22 JP JP2004006819U patent/JP3110197U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886459A (en) * | 2018-03-20 | 2020-11-03 | 三菱电机株式会社 | Heat exchanger, refrigeration cycle device, and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020004526A (en) | 2002-01-16 |
| US20020011332A1 (en) | 2002-01-31 |
| TW526322B (en) | 2003-04-01 |
| JP3110197U (en) | 2005-06-16 |
| JP2002062077A (en) | 2002-02-28 |
| ITRM20010384A0 (en) | 2001-07-03 |
| CN1188652C (en) | 2005-02-09 |
| ITRM20010384A1 (en) | 2002-01-07 |
| KR100382341B1 (en) | 2003-05-01 |
| ES2228189A1 (en) | 2005-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050209 Termination date: 20100705 |