CN107966063A - A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band - Google Patents
A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band Download PDFInfo
- Publication number
- CN107966063A CN107966063A CN201711287087.5A CN201711287087A CN107966063A CN 107966063 A CN107966063 A CN 107966063A CN 201711287087 A CN201711287087 A CN 201711287087A CN 107966063 A CN107966063 A CN 107966063A
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- Prior art keywords
- fin
- heat exchange
- exchange unit
- elliptical tube
- tube
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Classifications
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
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- 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
The present invention relates to a kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band, including straight arranged first heat exchange unit, the second heat exchange unit and the 3rd heat exchange unit are erected from top to bottom；First heat exchange unit includes the first elliptical tube and the first fin, and the positive bottom of first elliptical tube is provided with first fin for being capable of uniform water conservancy diversion；Second heat exchange unit includes the second elliptical tube and the second fin；The upper part and positive bottom of second elliptical tube are both provided with second fin for being capable of uniform water conservancy diversion；3rd heat exchange unit includes the 3rd elliptical tube and the 3rd fin, and the upper part of the 3rd elliptical tube is provided with the 3rd fin for being capable of uniform water conservancy diversion；First fin of the first heat exchange unit is connected with the second fin of upper part in the second heat exchange unit, and the 3rd fin of the 3rd heat exchange unit is connected with the second fin of positive bottom in the second heat exchange unit.The present invention can improve heat-transfer pipe guide performance.
Description
Technical field
The present invention relates to falling film evaporation technical field, is changed more particularly to a kind of semiellipse falling liquid film of the uniform distributing fin of band
Heat pipe.
Background technology
Horizontal falling film evaporation pipe, manages outer generation liquid evaporation phase-change heat-exchange, steam condensation phase-change heat-exchange occurs in pipe, at it
Heat-transfer pipe both sides undergo phase transition heat transfer, and heat transfer coefficient is very high, and are run with vacuum low transformation temperature, small different transfer of heat
Feature, efficient heat transfer mass transfer, it is energy saving the advantages of it is quite prominent, application development is rapid in MVR vapo(u)rization systems in recent years.But
Mostly there are a common problem for current heat transfer enhancement technology.Whether round falling film evaporation pipe, ellipse falling film evaporation pipe
Or semiellipse falling film evaporation pipe, both sides can all form confluence into membrane fluid in its bottom, and the confluence can be used as lower comb beam
" spray liquid ", and have following several respects problem for this " spray liquid "：Flow, flow 1. being somebody's turn to do under the action of " spray liquid " relies on gravity
Fluid spills phenomenon can occur when striking lower row's heat exchanger tube when measuring larger, prevent extratubal fluid from making full use of, so as to increase
Big cloth liquid measure.2. should " spray liquid " can be subject to vortex disturbance when afterbody converge, cause fall trajectory differ be set to vertically under
Fall, so as to trigger the uneven distribution of lower row's heat exchanger tube both sides fluid flow, heat exchanger tube side occur " dry spot " appearance, another
The blocked up phenomenon of side thickness of liquid film.The phenomenon causes heat exchanger tube not make full use of, and is unfavorable for exchanging heat.3. " spray liquid " is somebody's turn to do in column
Abundant evaporation and heat-exchange can not be produced in shape downflow processes, only descends dissipation heat pipe to provide falling liquid film liquid, so the profit for space
With not enough fully, whole heat exchanger external form may be caused bigger.Therefore, solve the problems, such as this for saving cloth liquid measure, strengthening and change
Heat, stabilized fluid flowing and reduction overall heat exchange body product are significant.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band, change
Kind heat-transfer pipe guide performance.
The technical solution adopted by the present invention to solve the technical problems is：A kind of semiellipse of the uniform distributing fin of band is provided
Falling film heat transfer pipe, including the first heat exchange unit, the second heat exchange unit and the 3rd heat exchange unit；First heat exchange unit includes the
One elliptical tube and the first fin, the positive bottom of first elliptical tube are provided with first fin for being capable of uniform water conservancy diversion；Institute
Stating the second heat exchange unit includes the second elliptical tube and the second fin；The upper part and positive bottom of second elliptical tube are both provided with
It is capable of second fin of uniform water conservancy diversion；3rd heat exchange unit includes the 3rd elliptical tube and the 3rd fin, and the described 3rd
The upper part of elliptical tube is provided with the 3rd fin for being capable of uniform water conservancy diversion；First heat exchange unit, the second heat exchange unit
Arrange vertically from top to bottom with the 3rd heat exchange unit, and upper part in the first fin and the second heat exchange unit of the first heat exchange unit
The second fin be connected, the 3rd fin of the 3rd heat exchange unit is connected with the second fin of positive bottom in the second heat exchange unit.
Second heat exchange unit is multiple, and multiple second heat exchange units are arranged vertically, and the above second heat exchange
Second fin of unit positive bottom is connected with the second fin of underlying second heat exchange unit upper part.
The length of first elliptical tube is consistent with the length of the first fin.
The length of second elliptical tube is consistent with the length of the second fin.
The length of 3rd elliptical tube is consistent with the length of the 3rd fin.
The width of the width of first fin and the second fin of the second elliptical tube upper part is satisfied by the first elliptical tube
With the spacing between the second elliptical tube.
The width of the width of 3rd fin and the second fin of the second elliptical tube positive bottom is satisfied by the second elliptical tube
With the spacing between the 3rd elliptical tube.
Beneficial effect
As a result of above-mentioned technical solution, compared with prior art, the present invention having the following advantages that and actively imitating
Fruit：
Semiellipse Falling film heat transfer pipe with uniform distributing fin instead of traditional circular heat exchanger tube, its advantage by the present invention
At following three aspects：First, distributing fin can completely cut off two side liquid of heat exchanger tube so that heat exchanger tube both sides flow is in each row
Keep equal, each row is realized uniform cloth liquid.Second, distributing fin can make heat exchanger tube afterbody fluid is adherent to flow to
Lower row's heat exchanger tube, avoids afterbody fluid due to situation of splashing caused by free-falling collides lower row's heat exchanger tube, Jin Erjie
About cloth liquid measure.Third, distributing fin increases heat exchange area so that fluid between two heat exchanger tubes can also falling film evaporation,
And then strengthen the overall heat exchange performance of heat exchanger tube, heat exchanger tube number of rows can be reduced when appropriate, reduces tube fluid flow, reduces resistance
Power, saves the energy.
In addition, the present invention condensed according to steam after surplus reduction exchange heat pipe carried out multitube distance laying, rationally set
The quantity of different tube side heat exchanger tubes is counted, ensures that the flow of steam in each tube side heat exchanger tube is essentially identical, makes different tube side heat exchanger tubes
Higher heat exchange efficiency is all kept, reduces tubing usage amount.
Brief description of the drawings
Fig. 1 is the cross section structure schematic diagram of the first heat exchange tube unit of the invention
Fig. 2 is the dimensional structure diagram of the first heat exchange tube unit of the invention
Fig. 3 is the cross section structure schematic diagram of the second heat exchange tube unit of the invention
Fig. 4 is the dimensional structure diagram of the second heat exchange tube unit of the invention
Fig. 5 is the cross section structure schematic diagram of the 3rd heat exchange tube unit of the invention
Fig. 6 is the dimensional structure diagram of the 3rd heat exchange tube unit of the invention
Fig. 7 is the cross section structure schematic diagram that three unit combination heat exchanger tubes of the invention combine.
Embodiment
With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Scope.
Embodiments of the present invention are related to a kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band, as shown in fig. 7, bag
Include the first heat exchange unit A, the second heat exchange unit B and the 3rd heat exchange unit C.As depicted in figs. 1 and 2, the first heat exchange unit A
Including the first elliptical tube 1 and the first fin 2, the positive bottom of first elliptical tube 1 be provided with can uniformly water conservancy diversion described
One fin 2.As shown in Figure 3 and Figure 4, the second heat exchange unit B includes the second elliptical tube 3 and the second fin 4；Described second is ellipse
The upper part and positive bottom of pipe 3 are both provided with second fin 4 for being capable of uniform water conservancy diversion.As shown in Figure 5 and Figure 6, it is described
3rd heat exchange unit C includes the 3rd elliptical tube 5 and the 3rd fin 6, and the upper part of the 3rd elliptical tube 5 is provided with can be uniform
The 3rd fin 6 of water conservancy diversion.The first heat exchange unit A, the second heat exchange unit B and the 3rd heat exchange unit C are erected from top to bottom
In line cloth, and the first fin 1 of the first heat exchange unit A is connected with the second fin 4 of upper part in the second heat exchange unit B, the 3rd
The 3rd fin 6 of heat exchange unit C is connected with the second fin 4 of positive bottom in the second heat exchange unit B.
It can be seen from the above that the present invention is advantageously implemented uniform cloth liquid, is improved by the optimization to common heat exchanger tube in structure
Heat-transfer pipe guide performance.Splashing situation is reduced, and then saves cloth liquid measure.Increase heat exchange area, strengthen heat exchanger tube overall heat exchange
Energy.
As shown in fig. 7, the second heat exchange unit B is multiple, multiple second heat exchange unit B arrange vertically, and positioned at upper
Second fin of the second heat exchange unit positive bottom of side is connected with the second fin of underlying second heat exchange unit upper part.
First row heat-exchanging tube bundle is the first heat exchange unit i.e. below liquid distributor, and intermediate row heat-exchanging tube bundle can be suitable according to heat exchange demand selection
Second heat exchange unit of quantity, last row's heat-exchanging tube bundle is the 3rd heat exchange unit.
The reduction exchange heat pipe of surplus has carried out multitube distance laying after the present invention is condensed according to steam, rationally designs different
The quantity of tube side heat exchanger tube, ensures that the flow of steam in each tube side heat exchanger tube is essentially identical, different tube side heat exchanger tubes is all kept
Higher heat exchange efficiency, reduces tubing usage amount.
It is noted that different heat exchanger tubes length of the institute with uniform distributing fin and heat exchanger tube one in present embodiment
Cause.That is, the length of first elliptical tube is consistent with the length of the first fin.The length of second elliptical tube and
The length of two fins is consistent.The length of 3rd elliptical tube is consistent with the length of the 3rd fin.On distributing fin width meets
It is oval that the width of lower tube spacing, i.e., the width of described first fin and the second fin of the second elliptical tube upper part is satisfied by first
Spacing between pipe and the second elliptical tube；The width of the width of 3rd fin and the second fin of the second elliptical tube positive bottom
The spacing being satisfied by between the second elliptical tube and the 3rd elliptical tube.
It is not difficult to find that distributing fin can completely cut off two side liquid of heat exchanger tube in the present invention so that heat exchanger tube both sides flow exists
Each row keeps equal, each row is realized uniform cloth liquid.Distributing fin can also make heat exchanger tube afterbody fluid adherent
Lower row's heat exchanger tube is flow to, avoids afterbody fluid due to situation of splashing caused by free-falling collides lower row's heat exchanger tube, into
And cloth liquid measure is saved.In addition, distributing fin increases heat exchange area so that fluid can also falling liquid film steaming between two heat exchanger tubes
Hair, and then strengthen the overall heat exchange performance of heat exchanger tube, heat exchanger tube number of rows can be reduced when appropriate, reduces tube fluid flow, drop
Lower resistance, saves the energy.
Claims (7)
1. a kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band, it is characterised in that changed including the first heat exchange unit, second
Hot cell and the 3rd heat exchange unit；First heat exchange unit includes the first elliptical tube and the first fin, first elliptical tube
Positive bottom be provided with first fin for being capable of uniform water conservancy diversion；Second heat exchange unit includes the second elliptical tube and second
Fin；The upper part and positive bottom of second elliptical tube are both provided with second fin for being capable of uniform water conservancy diversion；Described
Three heat exchange units include the 3rd elliptical tube and the 3rd fin, and the upper part of the 3rd elliptical tube is provided with being capable of uniform water conservancy diversion
3rd fin；First heat exchange unit, the second heat exchange unit and the 3rd heat exchange unit are arranged vertically from top to bottom, and the
First fin of one heat exchange unit is connected with the second fin of upper part in the second heat exchange unit, the 3rd wing of the 3rd heat exchange unit
Piece is connected with the second fin of positive bottom in the second heat exchange unit.
2. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that described second
Heat exchange unit is multiple, and multiple second heat exchange units are arranged vertically, and the second of the second heat exchange unit positive bottom above
Fin is connected with the second fin of underlying second heat exchange unit upper part.
3. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that described first
The length of elliptical tube is consistent with the length of the first fin.
4. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that described second
The length of elliptical tube is consistent with the length of the second fin.
5. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that the described 3rd
The length of elliptical tube is consistent with the length of the 3rd fin.
6. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that described first
The width of the width of fin and the second fin of the second elliptical tube upper part is satisfied by between the first elliptical tube and the second elliptical tube
Spacing.
7. the semiellipse Falling film heat transfer pipe of the uniform distributing fin of band according to claim 1, it is characterised in that the described 3rd
The width of the width of fin and the second fin of the second elliptical tube positive bottom is satisfied by between the second elliptical tube and the 3rd elliptical tube
Spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287087.5A CN107966063A (en) | 2017-12-07 | 2017-12-07 | A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287087.5A CN107966063A (en) | 2017-12-07 | 2017-12-07 | A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107966063A true CN107966063A (en) | 2018-04-27 |
Family
ID=61999642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711287087.5A Pending CN107966063A (en) | 2017-12-07 | 2017-12-07 | A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966063A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679886A (en) * | 2018-06-29 | 2018-10-19 | 珠海格力电器股份有限公司 | Falling film evaporator and electric appliance product |
| CN113137786A (en) * | 2021-05-31 | 2021-07-20 | 西安建筑科技大学 | Membrane tube bank falling film evaporation tube bundle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3101273U (en) * | 2003-10-29 | 2004-06-10 | 和信 呉 | Evaporative condenser with finless bare refrigerant tubes |
| CN200962011Y (en) * | 2006-08-02 | 2007-10-17 | 华中科技大学 | Heat exchange pipe bundle of surface evaporation empty cooler with the thickened film board |
| CN204717949U (en) * | 2015-06-24 | 2015-10-21 | 广东申菱空调设备有限公司 | The straight swollen air-conditioner set of a kind of tape channel evaporative condenser |
| CN205957548U (en) * | 2016-05-17 | 2017-02-15 | 颜汉兴 | Last novel bank of tubes of evaporative condenser |
| CN106823423A (en) * | 2017-01-20 | 2017-06-13 | 东华大学 | Semiellipse pipe falling film evaporator |
| US20170198973A1 (en) * | 2016-01-08 | 2017-07-13 | Evapco, Inc. | Thermal capacity of elliptically finned heat exchanger |
| CN207662250U (en) * | 2017-12-07 | 2018-07-27 | 东华大学 | A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band |
-
2017
- 2017-12-07 CN CN201711287087.5A patent/CN107966063A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3101273U (en) * | 2003-10-29 | 2004-06-10 | 和信 呉 | Evaporative condenser with finless bare refrigerant tubes |
| CN200962011Y (en) * | 2006-08-02 | 2007-10-17 | 华中科技大学 | Heat exchange pipe bundle of surface evaporation empty cooler with the thickened film board |
| CN204717949U (en) * | 2015-06-24 | 2015-10-21 | 广东申菱空调设备有限公司 | The straight swollen air-conditioner set of a kind of tape channel evaporative condenser |
| US20170198973A1 (en) * | 2016-01-08 | 2017-07-13 | Evapco, Inc. | Thermal capacity of elliptically finned heat exchanger |
| CN205957548U (en) * | 2016-05-17 | 2017-02-15 | 颜汉兴 | Last novel bank of tubes of evaporative condenser |
| CN106823423A (en) * | 2017-01-20 | 2017-06-13 | 东华大学 | Semiellipse pipe falling film evaporator |
| CN207662250U (en) * | 2017-12-07 | 2018-07-27 | 东华大学 | A kind of semiellipse Falling film heat transfer pipe of the uniform distributing fin of band |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679886A (en) * | 2018-06-29 | 2018-10-19 | 珠海格力电器股份有限公司 | Falling film evaporator and electric appliance product |
| CN113137786A (en) * | 2021-05-31 | 2021-07-20 | 西安建筑科技大学 | Membrane tube bank falling film evaporation tube bundle |
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