CN110425773A - A kind of full liquid heat-exchange pipe for evaporimeter - Google Patents
A kind of full liquid heat-exchange pipe for evaporimeter Download PDFInfo
- Publication number
- CN110425773A CN110425773A CN201910681229.9A CN201910681229A CN110425773A CN 110425773 A CN110425773 A CN 110425773A CN 201910681229 A CN201910681229 A CN 201910681229A CN 110425773 A CN110425773 A CN 110425773A
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- China
- Prior art keywords
- fin
- outer fin
- full liquid
- exchange pipe
- liquid heat
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- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 239000011800 void material Substances 0.000 claims abstract description 26
- 238000009835 boiling Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000007667 floating Methods 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 210000000515 tooth Anatomy 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of full liquid heat-exchange pipe for evaporimeter belongs to air-conditioning, the evaporation heat exchange Manifold technology field in refrigeration system.The outer fin spirally to extend including tube body and on tube wall, the gap between the outer fin of adjacent two spiral constitute the void structure being connected；The outer fin includes being respectively arranged in fin outside fin outside the top half of radial two opposite sides of the tube body and lower half portion；The void structure and hole opening constituted between the outer fin of the top half is smaller, and the void structure constituted between fin outside the lower half portion and hole opening are larger.Advantage: the setting of this structure advantageously forms bubble, and bubble is easy to that floating is discharged from hole, so that the boiling heat transfer process of heat exchanger tube is further strengthened, effectively improves the overall heat exchange efficiency of heat exchanger tube.
Description
Technical field
The invention belongs to the evaporation heat exchange Manifold technology fields in air-conditioning, refrigeration system, and in particular to a kind of full liquid evaporation
Device heat exchanger tube.
Background technique
About boiling heat transfer mechanism studies have shown that the boiling of liquid needs the presence of the nucleus of boiling.In given heating
Under conditions of the degree of superheat on surface, only when the radius of the nucleus of boiling is greater than least radius required for air bubble growth, bubble
It can just grow up, nucleate boiling just can be carried out.And the hole most probable that the groove in heating surface is formed becomes the nucleus of boiling.It is boiling
During rising, after bubble parameters are detached from hole, due to the effect of surface tension of liquid, active hole can retain portion
Divide steam, becomes the new nucleus of boiling, grow new bubble, so that boiling process is constantly lasting.If hole is too shallow or too big,
After bubble is detached from hole, hole is occupied by the liquid completely, and hole at this moment just loses activity, there is no bubble formation, this
When, boiling heat transfer will weaken.The many developments for starting from the enhanced boiling heat transfer surface of the 1970s all surround
Heating surface formed porous structure expansion.Full liquid is evaporated, the reasonable setting of void structure plays augmentation of heat transfer
Vital effect, the void structure of heat exchanger tube will be conducive to the generation of bubble, and can make the free buoyance lift discharge liquid of bubble
Surface forms lasting boiling heat transfer process, to improve the heat exchange property of heat exchanger tube.
The evaporator heat-exchange tube as disclosed in Chinese patent 95246323.7 and 10135786.7, outer surface are top
It is pressed into T-type helical fin, being formed has the smaller void structure that is open, to construct the place to form the nucleus of boiling, to reach
To the effect of enhanced boiling heat transfer.But above-mentioned heat exchanger tube has the following problems: since the whole void structure of heat exchanger tube is consistent,
When heat exchanger tube is in running order, bubble caused by the void structure of heat exchanger tube top half is held very much by buoyancy
Floating of changing places simultaneously excludes liquid surface, forms boiling heat transfer, and the void structure of heat exchanger tube lower half portion is due to hole opening court
Under, bubble caused by hole is not easy to be discharged by buoyancy effect, causes heat transfer effect bad.
In view of above-mentioned prior art, the applicant has made beneficial design, technical solution described below be
It is generated under this background.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of full liquid heat-exchange pipe for evaporimeter.
The purpose of the present invention is in this way to reach, a kind of full liquid heat-exchange pipe for evaporimeter, including the tube body with inner cavity
And the outer fin spirally to extend on tube wall, the gap between the outer fin constitute the hole knot being connected
Structure, and the wing slot for not only interlocking with the void structure but also being connected to is machined on the outer fin；The outer fin includes difference cloth
It is placed in fin outside the outer fin of top half and lower half portion of radial two opposite sides of the tube body；The inner surface of tube body is convexly equipped with
It is in the internal tooth of integral structure with tube body.
Further preferred structure, the full liquid heat-exchange pipe for evaporimeter should be at horizontally disposed shape in use
State, the outer fin of the top half are located at the surface of fin outside the lower half portion.
Further preferred structure, the outer fin height are 0.5~1.2mm.
Further preferred structure, the depth of the wing slot are 0.2~0.4 mm, and circumferential wing slot number is 65~175,
It is 1~50 ° with axis angle.
Further preferred structure, the void structure quantity formed between the outer fin of the top half be per inch 40~
60, hole opening width P1 is 0.1~0.2mm.
Further preferred structure, the void structure quantity formed between fin outside the lower half portion be per inch 25~
35, hole opening width P2 is 0.25~0.4mm.
Further preferred structure, the height of the internal tooth are 0.25~0.45 mm, circumferential internal screw thread rib quantity is 20~
50, spiral angle is 30~60 °.
The invention has the advantages that the outer fin of heat exchanger tube is set as the outer fin of top half and the lower half of radial two opposite sides
Exceptionally fin, the void structure and hole opening constituted between the outer fin of top half is smaller, constitutes between fin outside lower half portion
Void structure and hole opening are larger.The outer fin of top half forms closeer lesser void structure, on the one hand increases as far as possible
On the other hand heat transfer outside a tube surface area forms the nucleus of boiling as much as possible again, thus the outer boiling heat transfer of enhanced tube；Lower half
The outer fin in part, which is formed, relatively dredges biggish void structure, advantageously forms the nucleus of boiling of optimization, is easy to generate bubble and from sky
Opening discharge in cave is floated, and so that boiling process is continuously carried out, so that the boiling heat transfer of heat exchanger tube be made to obtain into one
Step is strengthened, and the overall heat exchange efficiency of heat exchanger tube is effectively improved.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the outer fin structure schematic diagram of top half of the invention；
Fig. 3 is fin structure schematic diagram outside lower half portion of the invention；
Fig. 4 is the outer fin surface schematic diagram of top half of the invention；
Fig. 5 is fin surface schematic diagram outside lower half portion of the invention；
In figure: 1-tube body, 2-outer fins (fin outside the outer fin of 21-top halfs, 22-lower half portion), 3-holes knot
Structure, 4-wing slots, 5-internal tooths.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the technology reality and beneficial effect that the present invention is furture elucidated, but it is right
The description of embodiment is not the limitation to the present invention program, and any design according to the present invention is made formal and insubstantial
The equivalence changes of property are regarded as technical solution of the present invention scope.
Fig. 1 to Fig. 5 shows an a kind of specific embodiment of full liquid heat-exchange pipe for evaporimeter of the present invention, preferred real at this
It applies in example, heat exchanger tube includes the outer fin 2 for having the tube body 1 of inner cavity and spirally extending on 1 outer wall of tube body, described outer
Gap between fin 2 constitutes the void structure 3 being connected, and is machined on the outer fin 2 and had both handed over the void structure 3
The wing slot 4 of wrong connection again；The outer fin 2 includes being respectively arranged in wing outside the top half of radial two opposite sides of the tube body 1
Fin 22 outside piece 21 and lower half portion；1 inner surface of tube body is convexly equipped with the internal tooth 5 with tube body 1 in integral structure.
In the preferred embodiment, the full liquid heat-exchange pipe for evaporimeter should be at horizontally disposed shape in use
State, the outer fin 21 of the top half are located at the surface of fin 22 outside the lower half portion；2 height of outer fin is
0.9mm；The depth of the wing slot 4 is 0.3mm, and it is 40 ° with axis angle that circumferential wing slot number, which is 102,；The top half
3 quantity of void structure formed between outer fin 21 is per inch 50, and hole opening width P1 is 0.15mm, thus structure shape
At smaller void structure increase heat transfer outside a tube surface area as far as possible, the nucleus of boiling as much as possible is formed, thus enhanced tube
Outer boiling heat transfer；3 quantity of void structure formed between fin 22 outside the lower half portion is per inch 30, and hole opening is wide
Degree P2 is 0.3mm, and the larger void structure that thus structure is formed advantageously forms the nucleus of boiling, is easy to generate bubble and from hole
Opening discharge is floated, and so that boiling process is continuously carried out, so that the boiling heat transfer of heat exchanger tube be made to be strengthened；Institute
The height for stating internal tooth 5 is 0.38 mm, and circumferential internal screw thread rib quantity is 34, and spiral angle is 43 °.
In conclusion technical solution provided by the invention compensates for shortcoming and deficiency in prior art, invention is completed
Task has fulfilled applicant's technical effect described in prior art effect column, ultimate attainment technical solution of can yet be regarded as.
Claims (7)
1. a kind of full liquid heat-exchange pipe for evaporimeter, including the tube body (1) with inner cavity and on tube body (1) outer wall spirally
The outer fin (2) to extend, it is characterised in that: the gap between the outer fin (2) constitutes the void structure (3) being connected, and
The wing slot (4) for not only interlocking with the void structure (3) but also being connected to is machined on the outer fin (2)；The outer fin (2) includes
It is respectively arranged in fin (22) outside the outer fin (21) of top half of radial two opposite sides of the tube body (1) and lower half portion；Institute
State tube body (1) inner surface be convexly equipped with tube body (1) be in integral structure internal tooth (5).
2. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: the full liquid evaporator is with changing
Heat pipe should be at horizontal disposition in use, and the outer fin (21) of the top half is located at wing outside the lower half portion
The surface of piece (22).
3. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: outer fin (2) height
For 0.5~1.2mm.
4. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: the depth of the wing slot (4)
For 0.2~0.4 mm, it is 1~50 ° with axis angle that circumferential wing slot number, which is 65~175,.
5. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: the outer fin of the top half
(21) void structure (3) quantity formed between is per inch 40~60, and hole opening width P1 is 0.1~0.2mm.
6. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: fin outside the lower half portion
(22) void structure (3) quantity formed between is per inch 25~35, and hole opening width P2 is 0.25~0.4mm.
7. a kind of full liquid heat-exchange pipe for evaporimeter described in accordance with the claim 1, it is characterised in that: the height of the internal tooth (5)
For 0.25~0.45 mm, circumferential internal screw thread rib quantity is 20~50, and spiral angle is 30~60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681229.9A CN110425773A (en) | 2019-07-26 | 2019-07-26 | A kind of full liquid heat-exchange pipe for evaporimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681229.9A CN110425773A (en) | 2019-07-26 | 2019-07-26 | A kind of full liquid heat-exchange pipe for evaporimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110425773A true CN110425773A (en) | 2019-11-08 |
Family
ID=68412560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910681229.9A Pending CN110425773A (en) | 2019-07-26 | 2019-07-26 | A kind of full liquid heat-exchange pipe for evaporimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425773A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0749193A (en) * | 1993-08-05 | 1995-02-21 | Hitachi Ltd | Heat exchanger and heat transfer tube |
| CN1731066A (en) * | 2005-08-09 | 2006-02-08 | 江苏萃隆铜业有限公司 | Heat exchange tube of evaporator |
| CN101004335A (en) * | 2007-01-15 | 2007-07-25 | 高克联管件(上海)有限公司 | Evaporation and condensation combined type heat-transfer pipe |
| CN102121805A (en) * | 2011-04-07 | 2011-07-13 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube used for falling film evaporator |
| CN102305569A (en) * | 2011-08-16 | 2012-01-04 | 江苏萃隆精密铜管股份有限公司 | Heat exchanger tube used for evaporator |
| CN202393284U (en) * | 2012-01-06 | 2012-08-22 | 烟台恒辉铜业有限公司 | Falling-film type evaporating pipe |
| CN103486894A (en) * | 2013-10-10 | 2014-01-01 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for falling film evaporator and manufacturing method thereof |
| US20150247681A1 (en) * | 2012-11-12 | 2015-09-03 | Wieland-Werke Ag | Evaporation heat transfer tube |
| CN108225089A (en) * | 2018-01-09 | 2018-06-29 | 苏州新太铜高效管有限公司 | Strengthen the condenser pipe of drain oil extraction |
| CN109269337A (en) * | 2018-11-12 | 2019-01-25 | 烟台恒辉铜业有限公司 | A kind of flooded evaporator heat exchanger tube |
| CN210718220U (en) * | 2019-07-26 | 2020-06-09 | 江苏萃隆精密铜管股份有限公司 | Heat exchange tube for flooded evaporator |
-
2019
- 2019-07-26 CN CN201910681229.9A patent/CN110425773A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0749193A (en) * | 1993-08-05 | 1995-02-21 | Hitachi Ltd | Heat exchanger and heat transfer tube |
| CN1731066A (en) * | 2005-08-09 | 2006-02-08 | 江苏萃隆铜业有限公司 | Heat exchange tube of evaporator |
| CN101004335A (en) * | 2007-01-15 | 2007-07-25 | 高克联管件(上海)有限公司 | Evaporation and condensation combined type heat-transfer pipe |
| CN102121805A (en) * | 2011-04-07 | 2011-07-13 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube used for falling film evaporator |
| CN102305569A (en) * | 2011-08-16 | 2012-01-04 | 江苏萃隆精密铜管股份有限公司 | Heat exchanger tube used for evaporator |
| CN202393284U (en) * | 2012-01-06 | 2012-08-22 | 烟台恒辉铜业有限公司 | Falling-film type evaporating pipe |
| US20150247681A1 (en) * | 2012-11-12 | 2015-09-03 | Wieland-Werke Ag | Evaporation heat transfer tube |
| CN103486894A (en) * | 2013-10-10 | 2014-01-01 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube for falling film evaporator and manufacturing method thereof |
| CN108225089A (en) * | 2018-01-09 | 2018-06-29 | 苏州新太铜高效管有限公司 | Strengthen the condenser pipe of drain oil extraction |
| CN109269337A (en) * | 2018-11-12 | 2019-01-25 | 烟台恒辉铜业有限公司 | A kind of flooded evaporator heat exchanger tube |
| CN210718220U (en) * | 2019-07-26 | 2020-06-09 | 江苏萃隆精密铜管股份有限公司 | Heat exchange tube for flooded evaporator |
Non-Patent Citations (1)
| Title |
|---|
| 刘启斌;何雅玲;张定才;陶文铨;: "R22在水平双侧强化管外池沸腾换热", 化学工程, no. 04, 15 April 2008 (2008-04-15) * |
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