CN202692733U - Fin condensing pipe provided with liquid absorption core body - Google Patents
Fin condensing pipe provided with liquid absorption core body Download PDFInfo
- Publication number
- CN202692733U CN202692733U CN 201220203234 CN201220203234U CN202692733U CN 202692733 U CN202692733 U CN 202692733U CN 201220203234 CN201220203234 CN 201220203234 CN 201220203234 U CN201220203234 U CN 201220203234U CN 202692733 U CN202692733 U CN 202692733U
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- core body
- fin
- heat exchange
- pipe
- imbibition core
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Abstract
A fin condensing pipe provided with a liquid absorption core body comprises a heat exchange pipe body, fins arranged on the outer surface of the heat exchange pipe body and spiral groove paths in the heat exchange pipe body. The fin condensing pipe is characterized in that rectangular or square notches are arranged on the central portions of lower half portions of the fins on the outer surface and extend along the axial direction of the heat exchange pipe body, the liquid absorption core body made of metal wire nets is arranged in the notches and continuously forms a rectangular or square strip shape, and the liquid absorption core body closely contacts and is fixed with the heat exchange pipe body. The asymmetrical fin condensing pipe provided with the liquid absorption core body overcomes the defects of a normal condensing pipe, can discharge liquid from the condensing heat exchange pipe more quickly, and enables liquid film of the condensing heat exchange pipe to be thinner, thereby achieving better heat exchange efficiency.
Description
Technical field
The utility model relates to a kind of condensing heat-exchanging pipe, especially a kind of finned condensation pipe with the imbibition core body.
Background technology
Condenser is the visual plant in many industrial processes, for example, and the condenser in the central air conditioner system handpiece Water Chilling Units.The quality of condenser performance depends on the heat exchange property quality of heat exchanger tube to a great extent.
Condensing heat-exchanging pipe is the body with inner chamber, and inboard wall of tube body smooth surface or inner wall surface are axially arranged with the conduit that distributes in the shape of a spiral along body usually; The tube wall surface is for smooth surface or have the fin that axially distributes in the shape of a spiral along body, claims that usually the latter is finned tube.Generally speaking, the axisymmetric shape of fin shape centered by the tubular axis line is such as garden shape fin; The perhaps symmetric shape take tubular axis line plane as the plane of symmetry is such as elliptical tube.
When condenser working, cold water flows through in the condensing heat-exchanging pipe of horizontal positioned, by with the heat exchange of tube wall, reduced tube wall temperature.When the steam outside the heat exchanger tube with after tube wall contacts, produce condensation.The condensing fin heat exchanger tube can improve the coefficient of heat transfer of heat exchanger tube, its operation principle: fin can increase heat exchange area greatly on the one hand, has increased heat transfer effect; In addition on the one hand, utilize the capillary force can reducer film thickness enhanced heat exchange.Be specifically described as follows: according to hydrodynamics and physics principle, the root of condensed fluid between two fins, and the interface between the vapor phase is curved surface, radius of curvature is oriented to the radius extending direction of heat exchanger tube, under the surface tension effects of liquid, the pressure of liquid will be lower than the pressure of extraneous vapor phase under the meniscus.There is one deck liquid film in fin surface by condensation because liquid film is very thin, and and vapor phase between the interface be flat, can think that the pressure in the liquid film equals the pressure of vapor phase.So the pressure in the fin surface liquid film will be higher than the pressure of liquid under the meniscus, therefore, under capillary effect, accelerated flowing of fin surface liquid, reduced the fin surface thickness of liquid film.In the condensing heat-exchange process, owing to have liquid film on the cold wall, steam can not directly contact with cold wall, carry out heat exchange but contact with liquid film, then carry out again heat exchange by liquid film and cold wall, in this process, liquid film becomes the thermal resistance of condensing heat-exchange, and liquid film is thicker, and thermal resistance is larger.As mentioned above, in the root of finned tube, there is meniscus, under the surface force effect, greatly when attenuate fin surface thickness of liquid film, improved the condensing heat-exchange coefficient of finned tube.
But because the shape of fin is symmetrical, all can produce meniscus at the fin root, its radius of curvature direction all is outside radially pointing to, and the capillary force that produces is pointed to the axle center of pipe.For the fin on heat exchanger tube top, the liquid film on it flows to the fin root under the capillary force effect, attenuate the thickness of liquid film of fin surface; But for the fin of heat exchanger tube bottom, the liquid film on it is difficult for drippage by the capillary force effect, be deposited in the heat exchanger tube bottom, form viscous flow liquid, in this case, the fin of heat exchanger tube bottom is submerged in the liquid together with the parent tube sub-surface, greatly reduces heat exchange property.
In order to solve this deficiency, the following solution of special proposition.
The utility model content
The utility model purpose is: provide a kind of faster discharge opeing from the condensing heat-exchanging pipe, the thickness of liquid film of attenuate condensing heat-exchanging pipe, the consequently finned condensation pipe with the imbibition core body of better heat exchange efficiency.
The technical solution of the utility model is: a kind of finned condensation pipe with the imbibition core body, comprise heat exchange tube body, spiral channel in fin on the outer surface and the pipe, it is characterized in that: the middle body of the Lower Half of the fin on the described outer surface has axially extended rectangle or the square notch along heat exchange tube body, the imbibition core body that woven wire is made is housed in the described breach, free of discontinuities consists of rectangle or square strip; Described imbibition core body by local welding or the extruding outer fin mode make it fixing, and with the heat exchange tube body close contact.
Further, the rectangle that described liquid-sucking core body forms or the width of square strip are 2 ~ 10mm, highly are 0.8 ~ 4mm.
Further, described imbibition core body is made by copper mesh or stainless steel cloth, and the order number is 20 ~ 300 orders.
Further, described fin number is 600 ~ 1800/m, and fin height is 0.8 ~ 4mm.
Further, the gash depth 0.1-0.6mm of described pipe inside spin conduit, quantity is 10 ~ 50.
Operation principle of the present utility model:
The condensing fin heat exchanger tube arranges fin, mainly be will be by the interface formation meniscus of liquid between the root of adjacent fins and steam, under the surface tension of liquid effect, form radial capillary power, because outside the radius of curvature direction point tube of meniscus, therefore, the action direction point tube axle center of capillary force.This active force radially is favourable for the fin of heat exchanger tube the first half, and capillary force direction and gravity direction are basic identical, and the liquid that it can accelerate fin surface flows to the fin root, and the thickness of liquid film of attenuate fin surface improves the condensing heat-exchange coefficient; In contrast, capillary force has radially played inhibition for the fin condensing heat-exchange of heat exchanger tube the latter half, the direction of capillary force is opposite with gravity direction, offset Action of Gravity Field, so that the liquid of the fin surface of heat exchanger tube the latter half is not easy to break away from heat exchanger tube, be deposited in the heat exchanger tube bottom and cause the liquid film of fin surface of the latter half of heat exchanger tube very thick, affected heat transfer effect.The utility model proposes semicircle fin middle position processing rectangle or square breach in the heat exchanger tube bottom, woven wire is set therein, make it axially form strip along heat exchanger tube.Because the hole of silk screen is little, can produce larger capillary force, so can absorb the liquid on the lower semi-circular fin surface, the reducer film thickness simultaneously, also can be absorbed in the condensation water of upper semi-circle fin root wherein.So the thickness of liquid film of attenuate heat exchanger tube improves its heat exchange property greatly.
The utility model has the advantages that:
The asymmetric finned condensation pipe of the utility model has solved the deficiency of conventional condenser pipe, can be from faster discharge opeing on the condensing heat-exchanging pipe, and the thickness of liquid film of attenuate condensing heat-exchanging pipe, thus reach the beneficial effect of better heat exchange efficiency.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is that the utility model is with the finned condensation pipe structural representation of imbibition core body;
Fig. 2 is the A-A view of Fig. 1.
Wherein: 1, heat exchange tube body light pipe section, 2, fin, 3, the imbibition core body, 4, pipe inside spin conduit.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are not limited to limit scope of the present utility model for explanation the utility model.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
Such as Fig. 1 ~ shown in Figure 2, a kind of fin condensing heat-exchanging pipe with the imbibition core body, its two ends are heat exchange tube body light pipe section 1, its effect is after heat exchanger tube passes the both sides end plate of shell and tube exchanger, can be closely fixing with end plate.The first half of fin 2 is semicircle, the latter half centre position is provided with the imbibition core body 3 that woven wire is made, meshcount is 200 orders, it highly is 1.0mm, equates that with the height of the semicircle fin of part on the heat exchanger tube width is 4mm, form the rectangle liquid-sucking core, with fin 2 and heat exchange tube body close contact, axially continuous along heat exchanger tube, free of discontinuities.Fin 2 density are 1600/m.The inside pipe wall face is provided with pipe inside spin conduit 4, and spiral channel 4 has 40, its degree of depth 0.3mm.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.
Claims (5)
1.
A kind of finned condensation pipe with the imbibition core body, comprise heat exchange tube body, spiral channel in fin on the outer surface and the pipe, it is characterized in that: the middle body of the Lower Half of the fin on the described outer surface has axially extended rectangle or the square notch along heat exchange tube body, the imbibition core body that woven wire is made is housed in the described breach, free of discontinuities consists of rectangle or square strip; Described imbibition core body makes it fixing by the mode of local welding or extruded fins, and with the heat exchange tube body close contact.
2.
According to claim 1, the finned condensation pipe of described imbibition core body is characterized in that, the rectangle that described liquid-sucking core body forms or the width of square strip are 2 ~ 10mm, highly are 0.8 ~ 4mm.
3.
According to claim 1, the finned condensation pipe of described imbibition core body is characterized in that, described imbibition core body is made by copper mesh or stainless steel cloth, and the order number is 20 ~ 300 orders.
4.
According to claim 1, the finned condensation pipe of described imbibition core body is characterized in that, described fin number is 600 ~ 1800/m, and fin height is 0.8 ~ 4mm.
5.
The finned condensation pipe of imbibition core body according to claim 1 is characterized in that, the gash depth 0.1-0.6mm of described pipe inside spin conduit, and quantity is 10 ~ 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203234 CN202692733U (en) | 2012-05-09 | 2012-05-09 | Fin condensing pipe provided with liquid absorption core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203234 CN202692733U (en) | 2012-05-09 | 2012-05-09 | Fin condensing pipe provided with liquid absorption core body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692733U true CN202692733U (en) | 2013-01-23 |
Family
ID=47548341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220203234 Expired - Fee Related CN202692733U (en) | 2012-05-09 | 2012-05-09 | Fin condensing pipe provided with liquid absorption core body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692733U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457312A (en) * | 2014-11-21 | 2015-03-25 | 桂林新艺制冷设备有限责任公司 | Condenser |
| WO2020042451A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Heat exchange pipe and air conditioner |
| CN111670333A (en) * | 2017-12-05 | 2020-09-15 | Wga水环球公司 | Latent heat exchanger chamber device |
-
2012
- 2012-05-09 CN CN 201220203234 patent/CN202692733U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457312A (en) * | 2014-11-21 | 2015-03-25 | 桂林新艺制冷设备有限责任公司 | Condenser |
| CN111670333A (en) * | 2017-12-05 | 2020-09-15 | Wga水环球公司 | Latent heat exchanger chamber device |
| CN111670333B (en) * | 2017-12-05 | 2022-04-19 | Wga水环球公司 | Latent heat exchanger chamber device |
| WO2020042451A1 (en) * | 2018-08-30 | 2020-03-05 | 珠海格力电器股份有限公司 | Heat exchange pipe and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130123 Termination date: 20200509 |