CN202902928U - Tubular heat exchanger with fins - Google Patents
Tubular heat exchanger with fins Download PDFInfo
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- CN202902928U CN202902928U CN 201220337063 CN201220337063U CN202902928U CN 202902928 U CN202902928 U CN 202902928U CN 201220337063 CN201220337063 CN 201220337063 CN 201220337063 U CN201220337063 U CN 201220337063U CN 202902928 U CN202902928 U CN 202902928U
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- super hydrophilic
- heat exchange
- fin
- heat exchanger
- vertical bar
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Abstract
The utility model discloses a tubular heat exchanger with fins and belongs to the technical field of heat exchangers. The tubular heat exchanger with the fins comprises a heat flux pipe and a plurality of independent and parallel heat exchanging fins. A composite wetting surface layer covers the surface of the heat exchanging fins, wherein the composite wetting surface layer is formed by combining first materials and second materials, the contact angle of the first materials is 0 degree to 15 degrees, and the contact angle of the second materials is 30 degrees to 180 degrees. According to the composite wetting surface layer, the first materials form superhydrophilic vertical bars or arborization which are vertically arranged at intervals on the surface of the fins along the water flow direction, superhydrophilic vertical bars or arborization in other areas are formed by the second materials, and the heat flux pipe horizontally penetrates through the heat exchanging fins by means of a method of hydraulic expansion connection. The tubular heat exchanger with the fins reduces the adhesion height of a hanging water bridge, even avoids formation of a lower edge water bridge, and therefore the amount of water storage of the fins is effectively reduced.
Description
Technical field
The utility model relates to a kind of heat exchanger, and especially a kind of finned pipe heat exchanger with high drainage performance the utlity model has higher drainage performance, belongs to technical field of heat exchangers.
Background technology
Finned tube exchanger is widely used in indoor, the outdoor heat exchanger of air-condition heat pump device.Wherein, indoor heat exchanger summer cooling condition often be in the condensation state, can not effectively discharge such as solidifying water, will stop up air flue, increase flowing resistance and equipment noise, and can improve the air-conditioner energy consumption.The more important thing is that wet cooling condition helps the growth of mould, thereby worsen the indoor air quality of air-conditioned room; And air source heat pump outside evaporimeter heats in the winter time and often is in frozen condition, and whether the defrosting water of defrost process can effectively discharge, and also directly affects the runnability of net for air-source heat pump units.Have residual defrosting water to exist such as heat exchanger surface, be easy to secondary Cheng Shuan ensuing in the thermal cycle, in situation back and forth, partial freezing can appear in heat exchanger, thereby significantly reduces the heat capacity of unit.Therefore, how to improve the drainage performance of finned tube exchanger, significant for the runnability that improves under air-conditioning, source pump wet cooling condition and the knot defrosting operating condition.
The water contact angle of in early days common fin surface is about four, 50 degree, the condensed water at initial stage can form the drop near the spherical crown shape of several mm dias on it, when the spherical crown diameter reached spacing of fin, then drop formed the water bridge between fin, hindered gas communication.In recent years, people have adopted the fin with ultra-hydrophilic surface, so that condensed water is sprawled fully and can not be formed drop at fin surface, have effectively avoided the formation of water bridge.But still there is another problem in the fin of ultra-hydrophilic surface, and namely the lower edge of condensed water extension fin can not come off, and forms lower to water bridge water district.Because the contact angle of ultra-hydrophilic surface is very little, so that the common fin of water bridge aspect ratio that lower edge tangles is taller, therefore also form larger water-holding quantity simultaneously.
The utility model content
The purpose of this utility model provides a kind of heat exchanger of effective reduction fin water-holding quantity.
A kind of finned pipe heat exchanger, it is characterized in that, this heat exchanger comprise the heat exchange siphunculus with several independently, parallel heat exchange fin, surface coverage one deck of heat exchange fin is the compound wetting top layer that the second material that the first material of 0 °-15 ° and contact angle are 30 °-180 ° forms according to certain principle combinations by contact angle;
Compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic vertical bar (such as Fig. 1) at fin surface, and other areas (being spacer area) are the second Material Fillings; Super hydrophilic vertical bar width is 0.1mm to 2mm, and two super hydrophilic vertical bar spaced surface width is 0.2mm to 8mm.
Or compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic perpendicular branch bar at fin surface, namely along on the vertically disposed super hydrophilic vertical bar of water (flow) direction, the super hydrophilic branch of linear (such as Fig. 2) that stretches out with lateral tilt, the angle of inclination of the super hydrophilic branch of linear and vertical bar is 10 ° to 70 °, other areas are comprised of the second material, wherein, the width of super hydrophilic vertical bar and super hydrophilic branch is the scope of 0.1mm to 2mm, and two super hydrophilic vertical bar spaced surface width is 0.2mm to 8mm.The heat exchange siphunculus crosses heat exchange fin by the Hydraulic Expansion connection.Heat exchange fin vertical heat exchange siphunculus, the heat exchange siphunculus is one or more, the heat exchange siphunculus be the single tube journey or multitube distance.
This heat exchanger is especially by reducing water-holding quantity on a kind of surface with compound wettability of fin surface structure.Having compound wettability surface, is that the area by two kinds of different wetting performances forms according to certain pattern principle combinations.The fin surface that this point is different from the past, the wettability on the whole area of fin surface all was uniformity in the past.
In order to realize reducing the purpose of water-holding quantity, the first surface that forms in two kinds of surfaces of this compound wetability is ultra-hydrophilic surface, and the scope of its contact angle is 0 ° to 15 °; The second surface then is the surface (the contact angle scope is 30 ° to 180 °) of large contact angle, can be hydrophobic surface (contact angle〉90 °), also can be the larger common water-wetted surface of contact angle, for example contact angle just belongs to common water-wetted surface at the early stage common fin surface of four or five ten degree.Usually, the contact angle on the first surface is as far as possible little, and the contact angle on the second surface is as far as possible large, can reach the effect of better reduction water-holding quantity.
Because the edge is not the ultra-hydrophilic surface of homogeneous under the fin, but have the interval on many large contact angle surfaces, and greatly reduce the capillary effect on edge under the fin, reduced to hang the height of attachment of water bridge, even avoid lower formation along the water bridge, thereby effectively reduce the water-holding quantity of fin.
Description of drawings
Fig. 1 is the basic pattern rule schematic diagram of the compound wetting surface of the utility model;
Fig. 2 is a kind of flexible pattern schematic diagram of the compound wetting surface of utility model;
Fig. 3 is a kind of finned heat exchanger schematic diagram with a heat exchange siphunculus of utility model;
Fig. 4 is a kind of finned heat exchanger schematic diagram with two heat exchange siphunculus of utility model;
Among the figure: 1. ultra-hydrophilic surface " the super hydrophilic vertical bar " that form; 2. " the large contact interval area " of large contact angle surface composition; 3. the lines " super hydrophilic branch " that form of ultra-hydrophilic surface.
The specific embodiment
The present invention will be described below in conjunction with embodiment, but the present invention is not limited to following examples.
A kind of finned pipe heat exchanger of following examples, identical part mainly comprise the heat exchange siphunculus with several independently, parallel heat exchange fin, surface coverage one deck of heat exchange fin is the compound wetting top layer that the second material that the first material of 0 °-15 ° and contact angle are 30 °-180 ° forms according to certain principle combinations by contact angle; The vertical heat exchange siphunculus of heat exchange fin, heat exchange siphunculus are multitube distance.The two ends of heat exchange siphunculus are respectively equipped with liquid-inlet and liquid outlet device, and the heat exchange siphunculus of heat exchanger and the consitutional outside of heat exchange fin can also be provided with housing.
Embodiment 1
Ultra-hydrophilic surface consists of (contact angle is 5 °) by super hydrophilic coating (water soluble acrylic resin, curing agent, wetting agent, cosolvent, water form), form the super hydrophilic vertical bar 1 of vertically arranging, other area is as shown in Figure 1 pattern of the surperficial large contact angle spacer area 2(that consists of of conventional aluminium), contact angle is 65 °.The width of super hydrophilic vertical bar 1 is 0.1 millimeter, and large contact angle spaced surface width is 0.2mm.Top ready-made fin is coupled together by ' Hydraulic expansion-jointing ' method with heat exchanger tube. the fin pattern schematic diagram that connects is (the super hydrophilic striped of each fin front and back can overlap, also can stagger) as shown in Figure 3, Fig. 3 is the spaced schematic diagram of the super hydrophilic striped of front and back, and fin bottom is the pools zone.Then the fin that connects is measured its water-holding quantity with dynamic immersion test, the result who records is 11.2g/m
2
Ultra-hydrophilic surface is made of super hydrophilic coating (polyethylene glycol, curing agent, wetting agent, cosolvent etc.), (contact angle is 0 °), form the parallel super hydrophilic vertical bar 1 of vertically arranging, oblique 45° angle stretches out as shown in Figure 2 pattern of the super hydrophilic branch 3(that is made of super hydrophilic coating on parallel super hydrophilic vertical bar 1), other area is the large contact angle spacer area 2 of aluminium surface after the super-hydrophobic processing of stearylmercaptan, and contact angle is 152 °.The width of super hydrophilic slice 1 is 2 millimeters, and large contact angle spaced surface width is 8mm.Top ready-made fin is coupled together by ' Hydraulic expansion-jointing ' method with heat exchanger tube. the fin pattern schematic diagram that connects is (the super hydrophilic striped of each fin front and back can overlap, also can stagger) as shown in Figure 4, Fig. 4 is the spaced schematic diagram of the super hydrophilic striped of front and back, and fin bottom is the pools zone.Then the fin that connects is measured its water-holding quantity with dynamic immersion test, the result who records is 5.5g/m
2
Ultra-hydrophilic surface consists of (contact angle is 0 °) by super hydrophilic coating (polyethylene glycol, curing agent, wetting agent, cosolvent etc.), form the parallel super hydrophilic vertical bar 1 of vertically arranging, oblique 10 ° of angles stretch out as shown in Figure 2 pattern of the super hydrophilic branch 3(that is made of super hydrophilic coating on parallel super hydrophilic vertical bar 1), other area is the large contact angle spacer area 2 of aluminium surface after the super-hydrophobic processing of triethoxy perfluor monosilane, and contact angle is 156 °.The width of super hydrophilic slice 1 is 0.7 millimeter, and large contact angle spaced surface width is 3mm.Top ready-made fin is coupled together by ' Hydraulic expansion-jointing ' method with heat exchanger tube. the fin pattern schematic diagram that connects is (the super hydrophilic striped of each fin front and back can overlap, also can stagger) as shown in Figure 3, Fig. 3 is the spaced schematic diagram of the super hydrophilic striped of front and back, and fin bottom is the pools zone.Then the fin that connects is measured its water-holding quantity with dynamic immersion test, the result who records is 6.3g/m
2
Embodiment 4
Ultra-hydrophilic surface consists of (contact angle is 9.5 °) by super hydrophilic coating (polyethylene glycol, curing agent, wetting agent, cosolvent etc.), form the parallel super hydrophilic vertical bar 1 of vertically arranging, oblique 70 ° of angles stretch out as shown in Figure 2 pattern of the super hydrophilic branch 3(that is made of super hydrophilic coating surface on parallel super hydrophilic vertical bar 1), other area is the large contact angle spacer area 2 of aluminium surface after the super-hydrophobic processing of triethoxy perfluor monosilane, and contact angle is 156 °.The width of super hydrophilic slice 1 is 0.3 millimeter, and large contact angle spaced surface width is 5mm.Top ready-made fin and heat exchanger tube are coupled together by ' Hydraulic expansion-jointing ' method.The fin pattern schematic diagram that connects is (the super hydrophilic striped of each fin front and back can overlap, also can stagger) as shown in Figure 4, and Fig. 4 is the spaced schematic diagram of the super hydrophilic striped of front and back, and fin bottom is the pools zone.Then the fin that connects is measured its water-holding quantity with dynamic immersion test, the result who records is 4.8g/m
2
Claims (6)
1. finned pipe heat exchanger, it is characterized in that, this heat exchanger comprise the heat exchange siphunculus with several independently, parallel heat exchange fin, surface coverage one deck of heat exchange fin is the compound wetting top layer that the second material that the first material of 0 °-15 ° and contact angle are 30 °-180 ° forms according to certain principle combinations by contact angle;
Compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic vertical bar at fin surface, and other areas are the second Material Fillings;
Or compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic perpendicular branch bar at fin surface, namely along on the vertically disposed super hydrophilic vertical bar of water (flow) direction, with the super hydrophilic branch of linear that lateral tilt is stretched out, other areas are comprised of the second material;
The heat exchange siphunculus crosses heat exchange fin by the Hydraulic Expansion connection.
2. according to a kind of finned pipe heat exchanger of claim 1, it is characterized in that, compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic perpendicular branch bar at fin surface, namely along on the vertically disposed super hydrophilic vertical bar of water (flow) direction, with the super hydrophilic branch of linear that lateral tilt is stretched out, other areas are comprised of the second material; The angle of inclination of the super hydrophilic branch of linear and vertical bar is 10 ° to 70 °.
3. according to a kind of finned pipe heat exchanger of claim 1, it is characterized in that, compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic vertical bar at fin surface, other areas are the second Material Fillings, super hydrophilic vertical bar width is 0.1mm to 2mm, and two super hydrophilic vertical bar spaced surface width is 0.2mm to 8mm.
4. according to a kind of finned pipe heat exchanger of claim 1, it is characterized in that, compound wetting top layer is: along water (flow) direction, the first material forms vertical spaced super hydrophilic perpendicular branch bar at fin surface, namely along on the vertically disposed super hydrophilic vertical bar of water (flow) direction, the super hydrophilic branch of linear that stretches out with lateral tilt, the angle of inclination of the super hydrophilic branch of linear and vertical bar is 10 ° to 70 °, other areas are comprised of the second material, wherein, the width of super hydrophilic vertical bar and super hydrophilic branch is the scope of 0.1mm to 2mm, two super hydrophilic vertical bar spaced surface width is 0.2mm to 8mm, and the heat exchange siphunculus crosses heat exchange fin by the Hydraulic Expansion connection.
5. according to a kind of finned pipe heat exchanger of claim 1, it is characterized in that the vertical heat exchange siphunculus of heat exchange fin, heat exchange siphunculus are multitube distance.
6. according to a kind of finned pipe heat exchanger of claim 1, it is characterized in that the heat exchange siphunculus is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337063 CN202902928U (en) | 2012-07-11 | 2012-07-11 | Tubular heat exchanger with fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337063 CN202902928U (en) | 2012-07-11 | 2012-07-11 | Tubular heat exchanger with fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902928U true CN202902928U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337063 Expired - Fee Related CN202902928U (en) | 2012-07-11 | 2012-07-11 | Tubular heat exchanger with fins |
Country Status (1)
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| CN (1) | CN202902928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779197A (en) * | 2019-11-25 | 2020-02-11 | 彭从文 | Anti-drying air conditioner heat exchanger |
| CN111631659A (en) * | 2020-06-04 | 2020-09-08 | 温州大学激光与光电智能制造研究院 | Efficient washing device capable of generating high-speed spinning liquid drops based on composite wetting surface |
-
2012
- 2012-07-11 CN CN 201220337063 patent/CN202902928U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779197A (en) * | 2019-11-25 | 2020-02-11 | 彭从文 | Anti-drying air conditioner heat exchanger |
| CN110779197B (en) * | 2019-11-25 | 2021-07-30 | 深圳市博一环境建设工程有限公司 | Anti-drying air conditioner heat exchanger |
| CN111631659A (en) * | 2020-06-04 | 2020-09-08 | 温州大学激光与光电智能制造研究院 | Efficient washing device capable of generating high-speed spinning liquid drops based on composite wetting surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20130711 |