CN208108902U - Half annular knurl finned condensation pipe - Google Patents
Half annular knurl finned condensation pipe Download PDFInfo
- Publication number
- CN208108902U CN208108902U CN201820030249.0U CN201820030249U CN208108902U CN 208108902 U CN208108902 U CN 208108902U CN 201820030249 U CN201820030249 U CN 201820030249U CN 208108902 U CN208108902 U CN 208108902U
- Authority
- CN
- China
- Prior art keywords
- fin
- annular knurl
- condensation pipe
- tube body
- finned condensation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
This application discloses a kind of half annular knurl finned condensation pipes, including：Tube body, around the helical fin for being set to the outer surface of tube body, the helical fin includes fin top half and the fin lower half portion being respectively arranged in radial two opposite sides of the tube body；Several annular knurl notches are provided at the top of the fin top half, the top of the fin lower half portion is smooth structure.This half annular knurl finned condensation pipe of the application can make full use of the surface tension of liquid curved surface, promote the drainage capacity of heat exchanger tube, thus improve the condensing heat-exchanging pipe of cooling energy recovery.
Description
Technical field
This application involves a kind of condenser pipe, especially a kind of half annular knurl finned condensation pipe that can accelerate drain.
Background technique
Condensing heat exchanger is essential component in central air conditioner system.The institute in centrifugal and screw compressor refrigerating unit
The water cooled condenser used, mainly horizontal shell-and-tube heat exchanger.Wherein, heat exchanger tube is horizontally disposed, and refrigerant vapour is from shell
Body top enters shell, and cooling water enters in condenser pipe from the end cap of side, and heat exchanger tube is flowed out from other side end cap.Refrigeration
Agent steam becomes liquid in heat exchanger tube surface condensation, and in order to increase condensing heat-exchange effect, heat exchange pipe external surface is provided with spiral wing
Piece, referred to as two dimension strengthen condensing heat-exchanging pipe.It is arranged there are two helical fin effects：First is that increasing heat exchange area；Second is that phase
The condensed fluid of channel floor between adjacent fin and the contact surface of gas form curved concave, raw under surface tension effects
At additonal pressure, the direction of additonal pressure and the gravity same direction, to be thinned thickness of liquid film on fin；For finned tube
Lower half portion, the reverse be true, the action direction and gravity of additonal pressure on the contrary, increase thickness of liquid film instead.But it is average
As a result the heat transfer effect of condensing heat-exchanging pipe is still increased.This phenomenon is known as " wishing in paddy in lattice " phenomenon.
In order to further increase the efficiency of condensing heat-exchanging pipe, people are again at the top of fin by annular knurl, so that fin top
There is equally distributed notch in portion, forms serrated fin, and such cast is referred to as three-dimensional condensation thermoexcell.Fin top
The zigzag geometry in portion can generate new capillary force, and curved liquid surface generates attached in the groove between original fin
Plus-pressure interaction, generates bigger additonal pressure, more preferably promotion thin film drainage, improves heat transfer effect.Therefore, this fin top
Portion improves 40% or more than the coefficient of heat transfer of fin heat exchange pipe with the condensing heat-exchanging pipe at sawtooth edge.Although improving cold
The overall efficiency of solidifying heat exchanger tube, still, condensing heat-exchanging pipe top half liquid film is thin, and the problem of lower half portion liquid film thickness does not have still
There is solution.
Utility model content
The purpose of the application is：In view of the deficiencies of the prior art, a kind of half annular knurl finned condensation pipe is proposed, it can be sufficiently sharp
With the surface tension of liquid curved surface, and the drainage capacity of heat exchanger tube is promoted, thus improves the condensing heat-exchanging pipe of cooling energy recovery.
The technical solution of the application is：
A kind of half annular knurl finned condensation pipe, including：
Tube body, and
Around the helical fin for being set to the outer surface of tube body, the helical fin includes being respectively arranged in the tube body
The fin top half of radial two opposite sides and fin lower half portion；
Several annular knurl notches are provided at the top of the fin top half, the top of the fin lower half portion is smooth
Structure.
The application further includes following preferred embodiment based on the above technical solution：
When coming into operation when the half annular knurl finned condensation pipe is horizontally disposed, the fin lower half portion is located at the wing
The underface of piece top half.
The annular knurl notch and makes described along the length direction arranged for interval of fin top half top edge
It is zigzag at the top of fin top half.
The inner surface of the tube body is formed with spiral channel.
The groove depth of the spiral channel is 0.15~1.4mm.
The spiral channel is provided with 10~70 altogether.
The helix angle of the spiral channel is 5~30 degree.
The helical fin is provided at least two altogether, and the helical fin is in the spacing of the tube body axis direction
0.3~0.5mm.
The helical fin with a thickness of 0.2~0.3mm.
30~50 annular knurl notches are provided on each spiral element of the spiral channel.
The advantages of the application is：
1, annular knurl notch is arranged at the top of fin top half in the application, and stronger hair is generated under surface tension effects
Thin power facilitates the drain on surface with gravity collective effect；And the top of fin lower half portion is not notched smooth knot
Structure causes surface tension to weaken, and reduces the opposite direction effect to gravity, so that the drippage of condenser pipe surface liquid is accelerated,
Increase the heat exchange efficiency of condenser pipe.
2, spiral channel is also set up in inner surface of tube body, it is possible to increase the heat exchange rate of tube fluid and tube body.
Detailed description of the invention
Fig. 1 is the radial side view of condenser pipe in the embodiment of the present application；
Fig. 2 is the axial side view of condenser pipe in the embodiment of the present application；
Fig. 3 is the portion the X enlarged drawing of Fig. 2；
Wherein：1- tube body, 2- fin, 201- fin top half, 201a- annular knurl notch, 202- fin lower half portion, 3-
Spiral channel.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the application is furtherd elucidate, it should be understood that these embodiments are merely to illustrate
The application rather than limitation scope of the present application, after having read the application, those skilled in the art are to each of the application
The modification of kind equivalent form falls within the application range as defined in the appended claims.
Fig. 1 to Fig. 3 shows a specific embodiment of this condenser pipe of the application, identical with traditional condenser pipe to be,
It also includes circular tube body 1, and the outer surface heat exchange of tube body 1 is provided with spiral helical fin 2.For convenience to the application
Technical solution is described, and said spiral fin 2 is divided into two parts by us, specifically：Helical fin 2 includes being located at tube body
The fin top half 201 of radial two opposite sides and fin lower half portion 202.It comes into operation when the condenser pipe is horizontal positioned
When, aforementioned fin lower half portion 202 is located at the underface of fin top half 201.
The key improvements of the present embodiment are that the top of aforementioned fin top half 201 is formed with by annular knurl technique
Numerous annular knurl notch 201a, and the top of fin lower half portion 202 is not notched smooth structure.
Above-mentioned each annular knurl notch 201a along 201 top edge of fin top half length direction arranged for interval, and
So that being laciniation at the top of fin top half 201.
Curved liquid surface in groove between fin generates additonal pressure, and the zigzag at fin top edge can also generate more
A curved liquid surface, and curved liquid surface is mutually perpendicular between fin, the bending radius for thereby resulting in the liquid level in groove is smaller, because
This, generates bigger additonal pressure.When additonal pressure is consistent with gravity direction, the discharge of liquid is accelerated, increases and changes
The thermal efficiency.But when additonal pressure is opposite with gravity direction, increase thickness of liquid film.And keep condenser pipe top half fin
Top zigzag fashion, heat transfer effect can be increased；And condenser pipe lower half portion fin keeps smooth edge, no zigzag
Shape has been reduced by additonal pressure, increases gravity, is conducive to drain to improve cooling energy recovery.
In addition, in order to further increase the heat exchange efficiency of the condenser pipe, the present embodiment is also formed with more in the inner surface of tube body 1
Spiral channel 3.The quantity of said spiral conduit 3 is preferably 10~70, and groove depth is preferably 0.15~1.4mm, helix angle
Preferably 5~30 degree.
In the present embodiment, above-mentioned helical fin 2 is provided with a plurality of, and each helical fin 2 is in the spacing of 1 axis direction of tube body
0.3~0.5mm.
Helical fin 2 is whole twist structure, obviously has and multiple sequentially arranges along tube body axis direction
Multiple spiral elements, each spiral element is just around tube body one week.In the present embodiment, it is provided with 30 on each spiral element~
50 annular knurl notch 201a (upper half ring in Fig. 2).Helical fin 2 with a thickness of 0.2~0.3mm.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented accordingly, and the protection scope of the application can not be limited with this.It is all according to the application major technique
The equivalent transformation or modification that the Spirit Essence of scheme is done should all be covered within the scope of protection of this application.
Claims (10)
1. a kind of half annular knurl finned condensation pipe, including：
Tube body (1), and
Around the helical fin (2) for being set to the outer surface of tube body, the helical fin (2) includes being located at the tube body
(1) the fin top half (201) of radial two opposite sides and fin lower half portion (202)；
It is characterized in that, several annular knurl notches (201a) are provided at the top of the fin top half (201), under the fin
The top of half part (202) is smooth structure.
2. half annular knurl finned condensation pipe as described in claim 1, which is characterized in that when the half annular knurl finned condensation pipe is horizontal
When arranging and coming into operation, the fin lower half portion (202) is located at the underface of the fin top half (201).
3. half annular knurl finned condensation pipe as claimed in claim 1 or 2, which is characterized in that the annular knurl notch (201a) along
The length direction arranged for interval of fin top half (201) top edge, and the fin top half (201) is pushed up
Portion is zigzag.
4. half annular knurl finned condensation pipe as claimed in claim 1 or 2, which is characterized in that the inner surface of the tube body (1) is formed with
Spiral channel (3).
5. half annular knurl finned condensation pipe as claimed in claim 4, which is characterized in that the groove depth of the spiral channel (3) is
0.15~1.4mm.
6. half annular knurl finned condensation pipe as claimed in claim 4, which is characterized in that the spiral channel (3) is provided with 10 altogether
~70.
7. half annular knurl finned condensation pipe as claimed in claim 4, which is characterized in that the helix angle of the spiral channel (3)
It is 5~30 degree.
8. half annular knurl finned condensation pipe as claimed in claim 1 or 2, which is characterized in that the helical fin (2) is provided with altogether
At least two, the helical fin (2) is 0.3~0.5mm in the spacing of the tube body (1) axis direction.
9. half annular knurl finned condensation pipe as claimed in claim 1 or 2, which is characterized in that the helical fin (2) with a thickness of
0.2~0.3mm.
10. half annular knurl finned condensation pipe as claimed in claim 4, which is characterized in that each spiral of the spiral channel (3)
30~50 annular knurl notches (201a) are provided on unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030249.0U CN208108902U (en) | 2018-01-09 | 2018-01-09 | Half annular knurl finned condensation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030249.0U CN208108902U (en) | 2018-01-09 | 2018-01-09 | Half annular knurl finned condensation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208108902U true CN208108902U (en) | 2018-11-16 |
Family
ID=64128469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820030249.0U Expired - Fee Related CN208108902U (en) | 2018-01-09 | 2018-01-09 | Half annular knurl finned condensation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208108902U (en) |
-
2018
- 2018-01-09 CN CN201820030249.0U patent/CN208108902U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2354743A2 (en) | Double-pipe heat exchanger | |
| CN1228603C (en) | Heat transferring tube for downward flow fluid membrane distiller | |
| CN101338987B (en) | Heat transfer pipe for condensation | |
| KR102048356B1 (en) | Refrigerant pipe, and fin type heat exchanger and air conditioner comprising the same | |
| US9683791B2 (en) | Condensation enhancement heat transfer pipe | |
| CN201159610Y (en) | Aluminum alloy finned tube for ice house | |
| CN108225089B (en) | Condenser tube for reinforcing drainage and oil discharge | |
| CN108801033A (en) | A kind of efficient heat-exchanging pipe of condensation | |
| CN208108902U (en) | Half annular knurl finned condensation pipe | |
| CN205090672U (en) | Double helix pipework condensation ware | |
| CN210718226U (en) | High-low fin enhanced condensation heat exchange tube | |
| JPH11148747A (en) | Heat exchanger tube for evaporator of absorption refrigerating machine | |
| CN104040281B (en) | Air conditioner | |
| JP3829648B2 (en) | Internal grooved heat transfer tube | |
| CN105277021A (en) | Coaxial wound heat exchanger | |
| CN207831742U (en) | Condenser pipe | |
| CN212458078U (en) | Heat exchange tube and air conditioner | |
| CN209068809U (en) | A kind of new-type full-liquid type evaporating heat-exchanging pipe | |
| CN110425778A (en) | A kind of height wing reinforcing condensing heat-exchanging pipe | |
| CN208155132U (en) | Heat exchange tube, heat exchanger and heat pump unit | |
| JP3417825B2 (en) | Inner grooved pipe | |
| CN216245777U (en) | Heat transfer pipe with transition surface on fin | |
| CN211601680U (en) | Falling film heat exchange tube, falling film heat exchanger and air conditioner | |
| JPH11270980A (en) | Heat transfer pipe for evaporator | |
| CN216245778U (en) | Heat transfer pipe for enhancing boiling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20200109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |