TWM381776U - Improved structure of heat exchanger - Google Patents

Improved structure of heat exchanger Download PDF

Info

Publication number
TWM381776U
TWM381776U TW098219888U TW98219888U TWM381776U TW M381776 U TWM381776 U TW M381776U TW 098219888 U TW098219888 U TW 098219888U TW 98219888 U TW98219888 U TW 98219888U TW M381776 U TWM381776 U TW M381776U
Authority
TW
Taiwan
Prior art keywords
heat exchanger
flow
disturbance
disturbances
chamber
Prior art date
Application number
TW098219888U
Other languages
English (en)
Inventor
jing-xian Cai
Original Assignee
Asia Vital Components Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asia Vital Components Co Ltd filed Critical Asia Vital Components Co Ltd
Priority to TW098219888U priority Critical patent/TWM381776U/zh
Priority to US12/637,683 priority patent/US20110094721A1/en
Publication of TWM381776U publication Critical patent/TWM381776U/zh

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40Tubular 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation

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)

Description

76 五、新型說明: 【新型所屬之技術領域】 -種熱交換H結構改良,尤指—種可產生渦流、提高棄流強 度’擴展熱交換H内設㈣片管流熱傳強化之流場雷諾數 (Reynold’s number)有效朗,藉以提高傳統平滑面式扭旋片 之熱傳強化效果的熱交換器結構改良。 【先前技術】 按現仃熱父換H為了更進-步提升管流之熱傳強化能力與熱 性能係數並延魏錢提升熱傳係數之雷純(㈣n〇ld,s number)制’會在熱交換器之管體内設扭旋片元件或於螺旋 波浪官内放置連續的扭旋片,或將扭旋片設置於多邊形管内,或 是設置多根扭旋片於一根管道之中。 傳統平滑面式之純>}無法藉由提高I流強度 intensity),提升熱傳能力’且傳統平滑面式扭旋片料數範圍 較小。 雷諾數是流體流射之慣性力及紐力比值的量度;且所述 雷諾數可視為慣性力及雜力比值量度;所述雷雜亦可視為慣 性力和黏滯力之比;當雷諾數較小時’黏滯力對流場的影響大於 慣性力,流場中流速的擾動會_滞力而衰減,流體流動穩定為 層流;反之,若雷諾數較大時,慣性力對流場的影響大於黏滞力, 流體流動較不穩定,流速的微小變化容易發展、增強,形成紊亂、 不規則紊流(Turbulent flow)流場。 M381776 傳統平滑面式之扭旋片1裝設於熱交換器之管體2中(如第1 圖所示),遂於管體2中導引出一對渦流3(Swirling f low),提供 管内對流場之熱傳係數。 傳統平滑面式之扭旋片1導引之渦流3提供垂直於管體2内 壁面之流體動量,因此對於層流(Laminar)域之流場具有較佳之熱 傳強化效果;但是由於紊流場(Turbulent flow)本身由於流體具 有震盪現象,因此以具有垂直於管體2内壁面之流體動量,因此 傳統平滑面式之扭旋片1對紊流場產生之熱傳強化效果較弱。 是以,要如何解決上述習用之問題與缺失,即為本案之創作 人與從事此行業之相關廠商所亟欲研究改善之方向所在者。 【新型内容】 菱此,為有效解決上述之問題,本創作之主要目的在提供一 種可提高熱交換器管體内層流及紊流之熱傳導能力及熱性能係數 的熱交換器結構改良。 為達上述目的,本創作係提出一種熱交換器結構改良,係包 含:-管體、-導流耕;所述管體具有—腔室;該導流元件係 被设置於m述腔至内’該m件具有—本體,該本體係呈螺旋 狀’且所述本體兩·向延伸形錢數擾部,該等擾部係各自獨 立排列’所述擾部具有-自由端用以接觸前述腔室之内壁,藉以 產生鰭片冷卻效應,各擾部及本體共同界定有至少一導流部y透 過所述導流元件之擾部可提高管體㈣流及紊流(τ她u㈣ flow)之熱傳遞能力及熱性能係數,藉鱗到極佳之熱傳效果; M381776 本創作具有下列優點: 1·提高層流與紊流(Turbulent flow)管流之熱傳能力及熱 性能係數。 2.擴展具有熱傳提升效能之雷諾數(Reyn〇id’s number)範 圍0 【實施方式】 本創作之上述目的及其結構與功能上的特性,將依據所附圖 ® 式之較佳實施例予以說明。 請參閱第2、2a、2b、2c、3、4圖,如圖所示,本創作熱交 換器結構改良,係包含:一管體4、一導流元件5 ;其中,該管體 4具有一腔室41 ; 所述導流元件5係設置於前述腔室41内,該導流元件5具有 一本體51 ’該本體51係呈螺旋狀,且本體5丨兩側徑向延伸形成 複數擾部52 ’該等擾部52係各自獨立排列,所述擾部52係具有 一自由端521對應前述腔室41之内壁,該擾部52及本體51共同 ® 界定有至少一導流部53。 所述管體4具有至少一進入端42及至少一出口端43,所述管 體4係可供流體6由該進入端42進入所述管體4之腔室41内。 前述導流元件5係設置於前述管體4内之腔室41中,ϋ由該 導流元件5之擾部52接觸該管體4之腔室41的内壁,並由該擾 部52與前述腔室41共同界定一螺旋流道44,前述流體6藉由前 述螺旋流道44於前述管體4中產生渦流(Swirling flow),提供 管體4内對流場之熱傳係數。 5 M381776 所述導流元件5之本體51及擾部52的杻率增加遂導致其熱 傳提升的有效雷諾數(Reynold’s number)範圍增加。 前述擾部52係可選擇呈片狀及針狀(圖中未表示)及柱狀及 條狀(圖中未表示)其中任一,本實施例係以片狀(如第2a圖所 示)作為表示但並不引以為限。 該等擾部52間具有至少一間隙空間522;該等擾部52之長度 係可呈等長之態樣(如第2a圖所示)或該等擾部52之長度呈互 不同之態樣(如第2b圖所示);所述擾部52彼此排列之間距係可 呈等距排列(如第2a圖所示)或彼此呈不等距排列(如第2c圖 所示)。 凊覆參閱第4圖,如圖所示,將前述導流元件5置入該管體4 之腔至41内,所述管體4之進入端42及出口端43,可供流體6 進入所述管體4進行熱交換,當所述流體6由該進入端而進入 所述管體4之腔室41中時,因所述導流元件5之擾部π係呈螺 旋式分佈,故可令擾部52後方所導致的剪應力層與主流場中的渦 流交互作用,使得流體6混合性及奈流(Turbulent flQw)強度 提尚,導致熱傳能力提高及壓損係數增加,導流元件5之擾部52 設計相較於習知平滑式扭旋片管的平均努塞數(Nusse i t number) 值為1. 28-2. 4倍;本創作之平均努塞數於層流域之熱傳係數可提 升至平滑圓管的6. 3-9. 5倍。 另者,本創作之導流元件5提供熱傳強化之有效雷諾數範圍 幸乂!知連續平射政片之雷諾數(Reyn〇ld,s number)範圍廣; 並所述導流疋件5之扭率增加遂導致其祕提升的有效雷諾數 (Reynold’s ntunber)範圍增加。 M381776 再者,經由分析Fanning壓損係數值隨著雷諾數(Reyn〇ld,s number)而變化的關係可推論該導流元件5會抑制流場由層流轉 換至紊流(Turbulent flow)的過渡區發展。 本創作之導流元件5的擾部52設計不僅比習知連續平滑扭旋 片提供更高的熱傳強化值,同時也改善其熱性能係數(thermal performance factor) ° 於本實施例中係使用單一導流元件5可提高平滑圓管之熱傳 能力及熱性能係數,若更進—步的應用複數根導流元件5 (圖中未 表示),其熱傳能力及熱性能係數可更進一步的提升,並且適當的 選擇導流元件5之扭率,可同時提高層流與奈流(Turbulent fl〇w) 管流之熱傳能力與熱性能係數。 需陳明者,以上所述僅為本案之雛實_,並非用以限制 本創作,若依本創作之構想所作之改變,在不脫離本創作精神範 圍内’例如:對於構形或佈置型態加以變換,對於各種變化,修 飾”應用’所產生等效作用,均應包含於本案之權利範圍内,合 _ 予陳明。 口 綜上所述,本創作之熱交換器結構改良於使用時,為確實能 達到其功效及目的’故本創作誠為一實用性優異之創作,為符合 新型專利之申請要件’妥依法提出申請,盼料早日賜准本案, =保障創作人之辛苦創作’倘若鈞局審委有任何稽疑,請不吝 來函指示,創作人定當竭力配合,實感德便。 【圖式簡單說明】 第1圖係為習知技術熱交換器立體剖視圖; 7 M381776 第2圖係為本創作之立體分解圖; 第2a圖係為本創作之立體分解局部放大圖; 第2b圖係為本創作之另一實施例之導流元件立體圖; 第2c圖係為本創作之另一實施例之導流元件立體圖; 第3圖係為本創作之立體組合剖視圖; 第4圖係為本創作之立體組合剖視圖。 【主要元件符號說明】 管體4 腔室41 進入端42 出口端43 螺旋流道44 導流元件5 本體51 擾部52 自由端521 間隙空間522 導流部53 流體6

Claims (1)

  1. M381776 六、申請專利範圍: 1. 一種熱交換器結構改良,係包含: 一管體,具有一腔室;及 一導流元件,係設置於前·_,料流元件具有—本體所 述本體呈_狀,且所述本體^搬向延伸職魏擾部該 等擾部係各自獨立排列,所述擾部具有一自由端對應前述腔室 • 之内壁’該擾部及本體共同界定有至少一導流部。 鲁 2.如申請專利範圍第1項所述之熱交換器結構改良,其中所述擾 部係可選擇呈片狀及針狀及柱狀及條狀其中任一。 3.如申請專利範圍第1項所述之熱交換器結構改良,其中所述導 流70件與前述腔室共同界定一螺旋流道。 4·如申睛專利範圍第1項所述之熱交換器結構改良,其中該等擾 部間具有至少一間隙空間。 5·如申請專利範圍S 1項所狀熱交換器結構改良,其中該等擾 部的長度相同。 ♦ 6·如申請專利範圍第1項所狀熱交換||結構改良,其中該等擾 部的長度不同。 7.如申請專利範圍第1項所述之熱交換器結構改良,其中該等擾 部係以等間距排列。 •如申請專利範圍第1項所述之熱交換器結構改良,其中該等擾 祁係以不等間距排列。 9
TW098219888U 2009-10-28 2009-10-28 Improved structure of heat exchanger TWM381776U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW098219888U TWM381776U (en) 2009-10-28 2009-10-28 Improved structure of heat exchanger
US12/637,683 US20110094721A1 (en) 2009-10-28 2009-12-14 Heat exchanger structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW098219888U TWM381776U (en) 2009-10-28 2009-10-28 Improved structure of heat exchanger

Publications (1)

Publication Number Publication Date
TWM381776U true TWM381776U (en) 2010-06-01

Family

ID=43897401

Family Applications (1)

Application Number Title Priority Date Filing Date
TW098219888U TWM381776U (en) 2009-10-28 2009-10-28 Improved structure of heat exchanger

Country Status (2)

Country Link
US (1) US20110094721A1 (zh)
TW (1) TWM381776U (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034195A (zh) * 2014-06-25 2014-09-10 上海理工大学 H型扭齿翅片管及h型扭齿翅片管换热管束
CN104034194A (zh) * 2014-06-25 2014-09-10 上海理工大学 矩形扭齿翅片管及矩形扭齿翅片管换热管束

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100147486A1 (en) * 2008-12-16 2010-06-17 Jan Vetrovec Thermal energy storage apparatus
KR101137528B1 (ko) * 2011-11-18 2012-04-20 한국기계연구원 카트리지형 인라인 히터 및 이를 이용한 작동유체 온도 제어 시스템
TWI493775B (zh) * 2012-05-22 2015-07-21 Delta Electronics Inc 電池模組
GB201302461D0 (en) * 2013-02-12 2013-03-27 Newton Ray Heat exchanger optimisation apparatus and method of use thereof
US20160231065A1 (en) * 2015-02-09 2016-08-11 United Technologies Corporation Heat exchanger article with hollow tube having plurality of vanes
US20170336153A1 (en) * 2016-05-12 2017-11-23 Price Industries Limited Gas turbulator for an indirect gas-fired air handling unit
EP4105588A1 (de) * 2021-06-15 2022-12-21 Materials Center Leoben Forschung GmbH Kühlkörper

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436190A (en) * 1922-03-20 1922-11-21 Musgrave Bernard Boiler-flue baffle
US2079144A (en) * 1935-06-17 1937-05-04 Reliable Refrigeration Co Inc Thermal fluid conduit and core therefor
US2213056A (en) * 1938-04-29 1940-08-27 United Carbon Company Inc Apparatus for treating dry flocculent powders
FR1065521A (fr) * 1951-07-17 1954-05-26 Procédé et dispositif pour le traitement de matières en menus morceaux, au moyen d'un fluide introduit par le bas
US3634042A (en) * 1970-02-24 1972-01-11 Monsanto Co Polymerization vessel having readily removable working parts
US4090559A (en) * 1974-08-14 1978-05-23 The United States Of America As Represented By The Secretary Of The Navy Heat transfer device
HU179455B (en) * 1979-07-16 1982-10-28 Energiagazdalkodasi Intezet Ribbed device improving the heat transfer composed from sheet strips
NL8802697A (nl) * 1988-11-03 1990-06-01 Stork Amsterdam Inrichting voor het op een bepaalde temperatuur houden van een produktmengsel bestaande uit een vloeistof met daarin opgenomen vaste delen.
US5174653A (en) * 1991-09-30 1992-12-29 Tah Industries, Inc. Serial connectors for motionless mixers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034195A (zh) * 2014-06-25 2014-09-10 上海理工大学 H型扭齿翅片管及h型扭齿翅片管换热管束
CN104034194A (zh) * 2014-06-25 2014-09-10 上海理工大学 矩形扭齿翅片管及矩形扭齿翅片管换热管束
CN104034194B (zh) * 2014-06-25 2016-09-14 上海理工大学 矩形扭齿翅片管及矩形扭齿翅片管换热管束
CN104034195B (zh) * 2014-06-25 2016-09-14 上海理工大学 H型扭齿翅片管及h型扭齿翅片管换热管束

Also Published As

Publication number Publication date
US20110094721A1 (en) 2011-04-28

Similar Documents

Publication Publication Date Title
TWM381776U (en) Improved structure of heat exchanger
Tang et al. A new configuration of winglet longitudinal vortex generator to enhance heat transfer in a rectangular channel
Zheng et al. Numerical investigation on heat transfer performance and flow characteristics in circular tubes with dimpled twisted tapes using Al2O3-water nanofluid
Bi et al. Heat transfer enhancement in mini-channel heat sinks with dimples and cylindrical grooves
Sheikholeslami et al. Review of heat transfer enhancement methods: Focus on passive methods using swirl flow devices
Promvonge Thermal performance in square-duct heat exchanger with quadruple V-finned twisted tapes
Bhattacharyya et al. Thermohydraulics of laminar flow through a circular tube having integral helical rib roughness and fitted with centre-cleared twisted-tape
Eiamsa-Ard et al. Influence of double-sided delta-wing tape insert with alternate-axes on flow and heat transfer characteristics in a heat exchanger tube
Sarma et al. Laminar convective heat transfer with twisted tape inserts in a tube
Ko A numerical study on entropy generation and optimization for laminar forced convection in a rectangular curved duct with longitudinal ribs
Khoshvaght-Aliabadi et al. Influence of Al2O3–H2O nanofluid on performance of twisted minichannels
Khoshvaght-Aliabadi et al. Proposing new configurations for twisted square channel (TSC): Nanofluid as working fluid
Behfard et al. Numerical investigation for finding the appropriate design parameters of a fin-and-tube heat exchanger with delta-winglet vortex generators
Menni et al. The solar air channels: comparative analysis, introduction of arc-shaped fins to improve the thermal transfer
Guo et al. Parametrization of secondary flow intensity for laminar forced convection in twisted elliptical tube and derivation of loss coefficient and Nusselt number correlations by numerical analysis
Kim et al. Numerical study of fluid flow and convective heat transfer characteristics in a twisted elliptic tube
Saha et al. Enhancement of heat transfer of laminar flow through a circular tube having integral helical rib roughness and fitted with wavy strip inserts
Xie et al. Numerical investigation of thermal-hydraulic performance of a heat exchanger tube with helical dimples
McEligot et al. Internal convective heat transfer to gases in the low-Reynolds-number “turbulent” range
Liu et al. Mechanism of heat transfer enhancement in the core flow of a tube and its numerical simulation
CN201527210U (zh) 热交换器结构改良
Jiang et al. Flow and heat transfer characteristics in square channel with concave–convex vortex generators based on numerical simulations
Sabir et al. Numerical investigation of thermal-hydraulic performance of U-tubes enhanced with ellipsoidal 45 deg dimples
Shen et al. A three-dimensional simulation analysis of fluid flow and heat transfer in microchannel heat sinks with different structures
Feng et al. Hydrothermal and energy-saving performances in a mini-channel heat sink under different wire coil inserts induced swirling flow

Legal Events

Date Code Title Description
MM4K Annulment or lapse of a utility model due to non-payment of fees