CN207831742U - Condenser pipe - Google Patents
Condenser pipe Download PDFInfo
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- CN207831742U CN207831742U CN201820030210.9U CN201820030210U CN207831742U CN 207831742 U CN207831742 U CN 207831742U CN 201820030210 U CN201820030210 U CN 201820030210U CN 207831742 U CN207831742 U CN 207831742U
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- tube body
- fin
- condenser pipe
- spacing
- pipe according
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Abstract
This application discloses a kind of condenser pipes, including：Tube body and several fins for being set to the outer surface of tube body；The tube body includes tube body top half and the tube body lower half portion for being located at its radial two opposite side；The spacing for being arranged in the fin of the tube body lower half portion is more than the spacing for the fin for being arranged in the tube body top half.This condenser pipe of the application can make full use of the surface tension of liquid curved surface, and improve 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 one kind being capable of condenser pipe.
Background technology
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 from the end cap of side in condenser pipe, and heat exchanger tube is flowed out from other side end cap.Refrigeration
Agent steam becomes liquid in heat exchanger tube surface condensation, wherein the lubricating oil of entrainment is covered in heat exchange pipe surface or with refrigeration
Agent liquid flows.
In order to increase condensing heat-exchange effect, it is provided with fin in heat exchange pipe external surface, there are two the effects of fin：First, increasing
Heat exchange area is added；Second is that the condensed fluid of channel floor and the contact surface of gas between adjacent fins form curved liquid surface.
According to Laplace's equation, under interfacial surface tension effect, the pressure difference inside and outside curved liquid surface is referred to as additonal pressure.When curved
When bent liquid level is concave surface, subsurface fluid pressure is less than fin surface fluid pressure, can by additonal pressure and surface tension and
The relationship description of liquid surface curvature radius is：
P0--- is bent out-plane strength (can be considered pressure in fin surface liquid film)
Fluid pressure under Pl--- conduit curved inner surfaces
σ --- surface tension
The radius of curvature of R---- curved liquid surfaces.
The radial centre lines of horizontal positioned heat exchanger tube are boundary, and above section is known as top, is known as lower part with lower part.
Due to refrigerant and metal material property determine the liquid flexure plane between fin be concave surface, no matter top or lower part wing
The additonal pressure direction of curved liquid surface is all directed to heat exchanger tube between piece.The liquid film of the top half fin surface of heat exchanger tube is by weight
Outside force effect, it will also be acted on by additonal pressure.The action direction of two kinds of power is identical, accelerates the stream of fin surface liquid film
It is dynamic so that liquid film is thinner, improves the coefficient of heat transfer of this part heat-transfer surface.And the liquid on the fin surface of heat exchanger tube lower half portion
Film is also acted on by two kinds of power of gravity and additonal pressure, but direction is but on the contrary, the action direction of gravity is downward so that liquid
Fin and heat exchange pipe surface are left, but the action direction of additonal pressure at this time is but directed towards heat exchanger tube, weakens gravity
Effect, therefore, the top half liquid film of heat exchanger tube are thinned, and the liquid film of lower half portion thickens.The thin local condensing heat-exchange system of liquid film
Number is higher than the thick place of liquid film.Therefore, on the one hand the measure for strengthening condensing heat-exchange is to increase heat exchange area, and still further aspect adds
Fast drain so that thinning of liquid film.And the measure of most of enhanced heat exchanges at present is to increase heat exchange area.Chinese patent
It proposes to compress axially out platform in fin upper edge in CN101813433A, increases the heat exchange area of fin.It is fairly obvious, the patent
The main function of proposition measure is to have the function that improve heat transfer effect by increasing heat-transfer surface.
Utility model content
The purpose of the application is：In view of the deficiencies of the prior art, a kind of new structural condenser pipe is proposed, it can be fully sharp
With the surface tension of liquid curved surface, and the drain oil extraction ability of heat exchanger tube is promoted, the condensation for thus improving cooling energy recovery is changed
Heat pipe.
The technical solution of the application is：
A kind of condenser pipe, including：
Tube body, and
It is set to several fins of the outer surface of tube body；
The tube body includes tube body top half and the tube body lower half portion for being located at its radial two opposite side；
The spacing for being arranged in the fin of the tube body lower half portion is more than the institute for being arranged in the tube body top half
State the spacing of fin.
The application further includes following preferred embodiment based on the above technical solution：
The spacing for being arranged in the fin of the tube body lower half portion is be arranged in the tube body top half described
1.5-2.5 times of the spacing of fin.
The spacing for being arranged in the fin of the tube body lower half portion is be arranged in the tube body top half described
2 times of the spacing of fin.
The fin is 0.7-1.2mm in the height of the tube body in the radial direction.
Maximum distribution density of the fin on the tube body is 35-50 pieces/foot.
The inner surface of the tube body is provided with spiral channel, and the groove depth of the spiral channel is 0.15-0.4mm.
Spiral channel described in 10-70 items is provided in the tube body altogether.
The helix angle of the spiral channel is 5-20 degree.
The fin includes ring fin and semi-circular fin, and the ring fin and semi-circular fin are along the tube body
Axis direction be alternately arranged successively, and each semi-circular fin is arranged in the tube body top half.
When coming into operation when the condenser pipe is horizontal positioned, the tube body lower half portion is located at the tube body top half
Lower section.
The advantages of the application is：
1, the spacing of fin of tube body lower half portion is more than the spacing of fin of tube body top half by the application, so as to accelerate
The flowing of liquid film and oil film makes liquid film be detached from heat exchanger tube as early as possible with oil film, improves the condensing heat-exchange effect 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.
Description of the drawings
Fig. 1 is the side structure schematic view of condenser pipe in the embodiment of the present application；
Fig. 2 is the A-A of Fig. 1 to sectional view；
Fig. 3 is the B-B direction sectional view of Fig. 1；
Wherein：1- tube bodies, 2- fins, 3- spiral channels.
Specific implementation mode
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 round tube body 1, and the outer surface of tube body 1 is provided with numerous fins 2.Light-emitting diode body 1 includes being located at its radial two opposition
The tube body top half of side and tube body lower half portion, when coming into operation when the condenser pipe is horizontal positioned, light-emitting diode body lower half
Divide positioned at the lower section of tube body top half.
The key improvements of the present embodiment are, the spacing for being arranged in each fin 2 of tube body lower half portion is more than and is arranged in pipe
The spacing of each fin 2 of body top half.
So designing is advantageous in that：
If the equation in background technology is shown, the size of additonal pressure is related to the radius of curvature of curved liquid surface.Curvature
Radius is small, and additonal pressure becomes larger；On the contrary, radius of curvature is big, additonal pressure then becomes smaller.The amount of curvature of curved liquid surface depends on again
The size of spacing of fin.When spacing of fin is big, the curvature of curved liquid surface is with regard to big, and additonal pressure is with regard to small；Conversely, between fin
Away from small, then additonal pressure is with regard to big.The additonal pressure of heat exchanger tube top half and gravity are equidirectional, can accelerate coagulating liq and profit
Lubricating oil is flowed from fin surface, and then liquid film and oil film thickness is thinned, and improves heat transfer effect.Therefore, the wing of top half
Piece line space design is the smaller the better, to increase additonal pressure.On the contrary, the spacing of fin of lower half portion is bigger, radius of curvature is got over
Greatly, the additonal pressure of generation is smaller, reduces the effect to gravity and negatively affects, accelerates the flowing of liquid film and oil film, make it as early as possible
It is detached from heat exchanger tube, to improve condensing heat-exchange effect.
According to above-mentioned principle, the spacing of fin of tube body lower half portion is more than between the fin of tube body top half by the present embodiment
Away from so as to accelerate the flowing of liquid film and oil film, making liquid film and oil film be detached from heat exchanger tube as early as possible, the condensation for improving condenser pipe is changed
Thermal effect.
Generally, it is preferably provided as the 1.5-2.5 of the spacing of fin of tube body top half for the spacing of fin of tube body lower half portion
Times, the present embodiment is specially 2 times.
What the differential setting of above-mentioned each spacing of fin was realized in：Fin 2 divides for ring fin and semi-circular fin,
Ring fin and semi-circular fin are alternately evenly arranged successively along the axis direction of tube body 1, and each semi-circular fin is equal
It is arranged in tube body top half.In this way, the first half of each ring fin and all semi-circular fins are all disposed within tube body
Top half, and the lower portion of only each ring fin is in tube body lower half portion.
When making, fin 2 is first mounted in 1 outer surface of tube body, then passes through mechanical expanding or hydraulic pressure tube expansion, you can Gu
Determine fin 2 and tube body 1.
And above-mentioned fin 2 is 0.7-1.2mm in the height of tube body 1 in the radial direction, fin 2 is on the tube body 1
Maximum distribution density is 35-50 pieces/foot.
In addition, in order to increase the heat exchange rate of tube fluid and tube body, the present embodiment is also provided in the inner surface of tube body 1
The groove depth of 10-70 spiral channel 3, spiral channel 3 is 0.15-0.4mm, and helix angle is 5-20 degree.
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 according to this, and the protection domain 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 cover within the protection domain of the application.
Claims (10)
1. a kind of condenser pipe, including：
Tube body (1), and
It is set to several fins (2) of the outer surface of tube body；
The tube body (1) includes tube body top half and the tube body lower half portion for being located at its radial two opposite side；
It is arranged on the tube body it is characterized in that, the spacing for being arranged in the fin (2) of the tube body lower half portion is more than
The spacing of the fin (2) of half part.
2. condenser pipe according to claim 1, which is characterized in that be arranged in the fin of the tube body lower half portion
(2) spacing is 1.5-2.5 times of the spacing for the fin (2) for being arranged in the tube body top half.
3. condenser pipe according to claim 2, which is characterized in that be arranged in the fin of the tube body lower half portion
(2) spacing is 2 times of the spacing for the fin (2) for being arranged in the tube body top half.
4. condenser pipe according to claim 1, which is characterized in that the fin (2) the tube body (1) in the radial direction
Height be 0.7-1.2mm.
5. condenser pipe according to claim 1, which is characterized in that maximum of the fin (2) on the tube body (1) point
Cloth density is 35-50 pieces/foot.
6. condenser pipe according to claim 1, which is characterized in that the inner surface of the tube body (1) is provided with spiral channel
(3), the groove depth of the spiral channel (3) is 0.15-0.4mm.
7. condenser pipe according to claim 6, which is characterized in that be provided with spiral shell described in 10-70 items altogether in the tube body (1)
Spin slot road (3).
8. condenser pipe according to claim 6, which is characterized in that the helix angle of the spiral channel (3) is 5-20 degree.
9. condenser pipe according to claim 1, which is characterized in that the fin (2) includes ring fin and semi-circular wing
Piece, the ring fin and semi-circular fin are alternately arranged successively along the axis direction of the tube body (1), and each described
Semi-circular fin is arranged in the tube body top half.
10. condenser pipe according to any one of claims 1 to 9, which is characterized in that put into when the condenser pipe is horizontal positioned
In use, the tube body lower half portion is located at the lower section of the tube body top half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030210.9U CN207831742U (en) | 2018-01-09 | 2018-01-09 | Condenser pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030210.9U CN207831742U (en) | 2018-01-09 | 2018-01-09 | Condenser pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207831742U true CN207831742U (en) | 2018-09-07 |
Family
ID=63392343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820030210.9U Expired - Fee Related CN207831742U (en) | 2018-01-09 | 2018-01-09 | Condenser pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207831742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-01-09 CN CN201820030210.9U patent/CN207831742U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108225089B (en) * | 2018-01-09 | 2023-10-24 | 苏州新太铜高效管有限公司 | Condenser tube for reinforcing drainage and oil discharge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20200109 |