CN203811002U - Efficient heat exchange tube and evaporative condenser thereof - Google Patents
Efficient heat exchange tube and evaporative condenser thereof Download PDFInfo
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- CN203811002U CN203811002U CN201420075581.0U CN201420075581U CN203811002U CN 203811002 U CN203811002 U CN 203811002U CN 201420075581 U CN201420075581 U CN 201420075581U CN 203811002 U CN203811002 U CN 203811002U
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- heat exchanger
- exchanger tube
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Abstract
The utility model discloses an efficient heat exchange tube. The efficient heat exchange tube comprises an air collecting tube and a liquid collecting tube, wherein a plurality of heat exchange tube units are arranged between the air collecting tube and liquid collecting tube; the heat exchange units comprise first heat exchange tubes, second heat exchange tubes and corner elbows; the inlets of the first heat exchange tubes are communicated with the air collecting tube; the outlets of the second heat exchange tubes are communicated with the liquid collecting tube; the second heat exchange tubes are distributed one above the other in a layered and staggered way relative to the first heat exchange tubes; the corner elbows are arranged between the first heat exchange tubes and the second heat exchange tubes; the outlets of the first heat exchange tubes are communicated with the inlets of the second heat exchange tubes. By adopting the efficient heat exchange tube, the problems that the heat exchange coefficient on the inner side of the heat exchange tube of an evaporative condenser is low and the wind resistance on the outer side of the tube is overlarge in the prior art are solved. An efficient heat exchange tube with high heat conductivity and small pipe diameter, and an evaporative condenser which has the advantages of high heat-transfer performance, high pressure resistance, compact structure and small floor space are provided.
Description
Technical field
The utility model relates to a kind of high-performance heat exchanger, is specifically related to a kind of evaporative condenser.
Background technology
Evaporative condenser is the main heat transmission equipment in refrigeration system, its action principle is: the overheated higher pressure refrigerant gas that in refrigeration system, compressor is discharged, through the condensation comb in evaporative condenser, makes the cold-producing medium of high-temperature gas and the spray water and air outside comb carry out heat exchange.During evaporative condenser work, shower water is transported to the water in water leg by water pump the shower at evaporative condenser top, the outer surface that sprays condensation comb through nozzle forms very thin moisture film, in moisture film, after the heat absorption of part water, be evaporated to steam, all the other fall into water leg, supply-water pump recycles, simultaneously, axial flow blower forced air is inhaled into from top and lower sidewall the coil pipe of flowing through, filler, saturated Hot wet air heating is discharged in ambient atmosphere, the part water droplet of carrying secretly in Hot wet air heating is held back by water collection device, effectively control water droplet and fly away loss, the lost vapor in the atmosphere that causes is controlled and is supplemented cooling water by ball-cock assembly in system.
Evaporative condenser has water saving, energy-conservation, compact conformation, feature that floor space is little, is a kind of saving energy type product, has been widely used in the places such as freezer, sewage source heat pump hot water machine, sewage source heat pump, heat pump sea water desalting apparatus.At present, the evaporative condenser that refrigerating field is selected mainly adopts the stainless steel straight tube of φ 16, φ 19, φ 25, and caliber is thicker, causes the pipe inner side coefficient of heat transfer not high, and pipe outside windage is excessive, and heat exchanger floor space is large.Chinese patent literature CN202420262U discloses a kind of a kind of heat exchange tube unit that the utility model discloses, fin tube type air-cooled condenser and cooling-air evaporimeter, this heat exchange tube unit comprises the many heat exchanger tube monomers that be arranged in parallel, heat exchanger tube monomer is by the bend pipe formation heat exchanging medium passage that joins end to end, the heat exchanger tube monomer diameter of the adjacent arrangement of direction increasing along gas specific volume increases gradually, bend pipe is reducing elbow gradually, the heat exchanger tube monomer diameter of the direction adjacent arrangement of this condenser along gas inlet tube to collector tube reduces gradually, bend pipe is convergent footpath bend pipe, the heat exchanger tube monomer diameter of the adjacent arrangement of direction along liquid distributing pipe to discharge increases gradually, bend pipe is flaring footpath bend pipe, this structure can reduce metal consumption for condenser, for evaporimeter, can reduce flow losses, but this device lower floor's heat exchanging body unit is identical with the planform of heat exchanging body unit, upper strata, and alignment, therefore, lower floor's heat exchanging body cell surface is not easily soaked by shower water because heat exchanging body unit, upper strata blocks, make shower water flow skewness, easily there is flow dead, and this apparatus structure is complicated, install loaded down with trivial details, integral body takes up room larger.
Utility model content
For this reason, technical problem to be solved in the utility model be evaporative condenser of the prior art adopt more stainless steel straight tube and caliber thicker, the pipe inner side coefficient of heat transfer is not high, pipe outside windage is excessive, provide a kind of heat conductivility good, the efficient heat-exchanging pipe that caliber is less.
Another object of the present utility model be to provide a kind of heat transfer property and resistance to pressure stronger, compact conformation and take up an area the less evaporative condenser in space.
For solving the problems of the technologies described above, the utility model provides a kind of efficient heat-exchanging pipe, comprises discharge and collector tube, between described discharge and described collector tube, is communicated with some heat exchange tube units, and described heat exchange tube unit comprises
The first heat exchanger tube, the import of described the first heat exchanger tube is communicated with described discharge,
The second heat exchanger tube, the outlet of described the second heat exchanger tube is communicated with described collector tube, and on relatively described the first heat exchanger tube of described the second heat exchanger tube, lower leaf stagger arrangement is arranged;
Corner elbow, is arranged between described the first heat exchanger tube and described the second heat exchanger tube, and the outlet of described the first heat exchanger tube is communicated with the entrance of described the second heat exchanger tube.
Described the first heat exchanger tube, described the second heat exchanger tube are all wavy, and the crest of the crest of described the first heat exchanger tube or trough and described the second heat exchanger tube or trough stagger and arrange.
The wavy of described the first heat exchanger tube, the second heat exchanger tube upwards given prominence to and formed downwards by a plurality of " Ω ".
The caliber of described the first heat exchanger tube, described the second heat exchanger tube is not more than 15mm.
The external diameter of described the first heat exchanger tube and described the second heat exchanger tube is D, and the level interval between described the first heat exchanger tube and described the second heat exchanger tube is L, and between the two, relation need meet: 1.5D≤L≤3D.
The height of described the first heat exchanger tube and described the second heat exchanger tube is identical and be S2, and the vertical drop that described the first heat exchanger tube and described the second heat exchanger tube stagger is up and down S1, and between the two, relation need meet: 0.5S2≤S1≤2S2.
The vertical drop that the first heat exchanger tube, the second heat exchanger tube stagger up and down meets: " Ω " that described the first heat exchanger tube projects upwards and described the second heat exchanger tube be the center superposition of outstanding " Ω " downwards.
Described the first heat exchanger tube, described the second heat exchanger tube are riffled tube.
On described discharge, be provided with inlet connection, on described collector tube, be provided with discharge connection.
Described inlet connection and described discharge connection are communicated with the mouth of pipe of described discharge and the mouth of pipe of described collector tube respectively.
Described inlet connection and described discharge connection are communicated with the sidewall of described discharge and the sidewall of described collector tube respectively.
An evaporative condenser, comprises casing, heat exchange coil, and blower fan, water-collecting tray, water circulating pump and spray equipment, described evaporative condenser comprises the efficient heat-exchanging pipe described in above any one.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) efficient heat-exchanging pipe of the present utility model, comprise discharge and collector tube, between described discharge and described collector tube, be communicated with some heat exchange tube units, described heat exchange tube unit comprises the first heat exchanger tube, the second heat exchanger tube and corner elbow, the import of described the first heat exchanger tube is communicated with described discharge, the outlet of described the second heat exchanger tube is communicated with described collector tube, and on relatively described the first heat exchanger tube of described the second heat exchanger tube, lower leaf stagger arrangement is arranged, described corner elbow is arranged between described the first heat exchanger tube and described the second heat exchanger tube, the outlet of described the first heat exchanger tube is communicated with the entrance of described the second heat exchanger tube, described the first heat exchanger tube, described the second heat exchanger tube is all wavy, and the crest of the crest of described the first heat exchanger tube or trough and described the second heat exchanger tube or trough stagger and arrange, the setting of described corner elbow, can make adjacent two row's heat exchanger tubes be stagger arrangement arranges, avoid lower floor's heat exchanger tube surface not soaked by shower water because upper strata heat exchanger tube blocks, shower water flow is more evenly distributed, there is not flow dead, the set-up mode of insert row stagger arrangement simultaneously and Dual-layer makes the air wide pre. drop of heat exchanger tube less, circulation of air resistance is less, be conducive to reduce blower fan power consumption, and contribute to gas communication to take away steam.
(2) efficient heat-exchanging pipe of the present utility model, the wavy of described the first heat exchanger tube, the second heat exchanger tube all has a plurality of " Ω " upwards to give prominence to and form downwards, " " the bend pipe design of shape makes the alteration of form of pipeline to Ω in described heat exchanger tube employing, thereby make mobile being constantly disturbed of tube fluid and produce strong turbulent flow, the coefficient of heat transfer is higher, has greatly strengthened heat transfer property and the resistance to pressure of heat exchanger.
(3) efficient heat-exchanging pipe of the present utility model, the external diameter of described the first heat exchanger tube and described the second heat exchanger tube is D, level interval between described the first heat exchanger tube and described the second heat exchanger tube is L, between the two, relation need meet: 1.5D≤L≤3D, the efficient heat-exchanging pipe of the present utility model that is arranged so that of adjacent two row heat exchanger tube level intervals can be too small not adjacent and hinder flowing of wind because of distance, also not can because of spacing excessive cause distinguished and admirable invalid.
(4) efficient heat-exchanging pipe of the present utility model, described the first heat exchanger tube equates with described the second heat exchanger tube height, and the vertical drop that described the first heat exchanger tube and described the second heat exchanger tube stagger is up and down S1, the curved height of described heat exchanger tube " Ω " is S2, between the two, relation need meet: 0.5S2≤S1≤2S2, be arranged so that described the first heat exchanger tube and the described second heat exchanger tube stagger arrangement of this difference in height are conducive to the installation of corner elbow when arranging, process Installation is convenient.
(5) evaporative condenser of the present utility model, its heat exchanger tube heat conductivility is good, caliber is less, thereby heat transfer property and the resistance to pressure of heat exchanger have greatly been strengthened, be conducive to improve the refrigeration performance of evaporative condenser, and simple in structure, can manufacture flat compact-type, take up room less, thereby contribute to reduce the volume of condenser product.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is evaporative condenser structure 1 schematic diagram of the present utility model;
Fig. 2 is evaporative condenser structure 2 schematic diagrames of the present utility model;
Fig. 3 is adjacent two rows' heat exchanger tube schematic layout pattern;
Fig. 4 is adjacent two row heat exchanger tube space layout schematic diagrames;
In figure, Reference numeral is expressed as: 1-enters interface tube, 2-discharge, 3-the first heat exchanger tube, 4-corner elbow, 5-collector tube, 6-discharge connection, 7-the second heat exchanger tube.
The specific embodiment
Below in conjunction with specific embodiment, a kind of efficient heat-exchanging pipe of the present utility model and evaporative condenser thereof are specifically described:
embodiment mono-
As shown in Figure 1, a kind of efficient heat-exchanging pipe, comprise discharge 2 and collector tube 5, between described discharge 2 and described collector tube 5, be communicated with some heat exchange tube units, described heat exchange tube unit comprises the first heat exchanger tube 3, the second heat exchanger tube 7 and corner elbow 4, the import of described the first heat exchanger tube 3 is communicated with described discharge 2, the outlet of described the second heat exchanger tube 7 is communicated with described collector tube 5, and on relatively described the first heat exchanger tube 3 of described the second heat exchanger tube 7, lower leaf stagger arrangement is arranged, described corner elbow 4 is arranged between described the first heat exchanger tube 3 and described the second heat exchanger tube 7, the outlet of described the first heat exchanger tube 3 is communicated with the entrance of described the second heat exchanger tube 7.The setting of described corner elbow 4, can make adjacent two row's condenser pipes be stagger arrangement arranges, avoid lower floor's condenser pipe surface not soaked by shower water because upper strata condenser pipe blocks, shower water flow is more evenly distributed, do not have flow dead, the set-up mode of insert row stagger arrangement simultaneously and Dual-layer makes the air wide pre. drop of heat exchanger tube less, and circulation of air resistance is less, be conducive to reduce blower fan power consumption, and contribute to gas communication to take away steam.
Described the first heat exchanger tube 3, described the second heat exchanger tube 7 are all wavy, and the crest of the crest of described the first heat exchanger tube 3 or trough and described the second heat exchanger tube 7 or trough stagger and arrange.In the present embodiment, the wavy of described the first heat exchanger tube 3, the second heat exchanger tube 7 all has a plurality of " Ω " upwards to give prominence to and form downwards, and the caliber of described the first heat exchanger tube 3, described the second heat exchanger tube 7 is not more than 15mm, efficient heat-exchanging pipe material of the present utility model can adopt copper or the good metal of other heat conductivilitys simultaneously.Adopting caliber is the following riffled tube of 15mm, make heat exchange tube diameter of the present utility model less, metal tube forms " Ω " shape by technique bending, the change of pipe shape, can make mobile being constantly disturbed of tube fluid and produce strong turbulent flow, improve the coefficient of heat transfer of heat exchanger tube, thereby greatly strengthened heat transfer property and the resistance to pressure of heat exchanger.
In the present embodiment, as shown in Figure 4, described the first heat exchanger tube 3 equates completely with the geomery of described the second heat exchanger tube 7, described the first heat exchanger tube 3 is a plurality of " Ω " with described the second heat exchanger tube 7 and upwards gives prominence to the bend pipe structure forming downwards, simultaneously, " Ω " curved height of described the first heat exchanger tube 3 and described the second heat exchanger tube 7 equates, and the size that described " Ω " is curved and degree of crook are also consistent, thereby make described heat exchange tube structure integral body be upper and lower symmetry, be the crest of heat exchanger tube or trough completely corresponding with on adjacent row's trough or crest location, as shown in Figure 3, in the present embodiment, described the first heat exchanger tube 3 is D with the external diameter of described the second heat exchanger tube 7, level interval between described the first heat exchanger tube 3 and described the second heat exchanger tube 7 is L, between the two, relation need meet: 1.5D≤L≤3D, the efficient heat-exchanging pipe of the present utility model that is arranged so that of adjacent two row heat exchanger tube level intervals of the present utility model can be too small not adjacent and hinder flowing of wind because of distance, also not can because of spacing excessive cause distinguished and admirable invalid.Simultaneously, as shown in Figure 4, described the first heat exchanger tube 3 is S1 with the vertical drop that described the second heat exchanger tube 7 staggers up and down, the curved height of described heat exchanger tube " Ω " is S2, between the two, relation need meet: 0.5S2≤S1≤2S2, be arranged so that described the first heat exchanger tube and the described second heat exchanger tube stagger arrangement of this difference in height are conducive to the installation of corner elbow when arranging, process Installation is convenient, and in the present embodiment, described the first heat exchanger tube 3, described the second heat exchanger tube 7 are riffled tube, the heat exchange property of the heat exchanger tube further improving.Especially the first heat exchanger tube, the second heat exchanger tube stagger up and down vertical drop meets: " Ω " that described the first heat exchanger tube projects upwards and described the second heat exchanger tube be downwards during the center superposition of outstanding " Ω ", installs more conveniently, and heat exchange efficiency is higher.
In this enforcement, as shown in Figures 1 and 2, described discharge 2 and two cylindrical structurals of described collector tube 5 for being arranged side by side, described discharge 2 is arranged at described collector tube 5 belows, and the diameter of described discharge 2 is greater than the diameter of described collector tube 5.On described discharge 2, be provided with inlet connection 1, on described collector tube 5, be provided with discharge connection 6.As shown in Figure 1, described inlet connection 1 and described discharge connection 6 be all on the bottom surface of the corresponding cylindrical structures that are arranged at described discharge 2 and described collector tube 5, and described inlet connection 1 and described discharge connection 6 are arranged at the homonymy of described heat exchange tube unit.Yet, as shown in Figure 2, also can be according to actual needs, the medium position by the cylindrical structure that is arranged at described discharge 2 and described collector tube 5 of described inlet connection 1 and described discharge connection 6 equal correspondences along its short transverse.What need to indicate is, the described discharge 2 of described efficient heat-exchanging pipe of the present utility model and the shape of described collector tube 5 are not limited to cylindrical configuration, can need or spatial limitation according to installing, be adjusted to the shape of other applicable space requirements, the setting position of described inlet connection 1 and described discharge connection 6 is also not limited to a side or the middle part of described discharge 2 and described collector tube 5 simultaneously, operating personnel can adjust the position of described inlet connection 1 and described discharge connection 6 as required, such as being arranged on the opposite side of described cylindrical configuration or arbitrary position of described cylindrical configuration length direction etc.
embodiment bis-
An evaporative condenser, comprises casing, heat exchange coil, and blower fan, water-collecting tray, water circulating pump and spray equipment, described evaporative condenser comprises above-described efficient heat-exchanging pipe.The related evaporative condenser of the utility model mainly adopts the efficient heat-exchanging pipe that above-described heat conductivility is better, caliber is less.
Evaporative condenser of the present utility model, cold-producing medium enters discharge 2 from described inlet connection 1, the flow through heat exchanger tube of " Ω " type distortion, caliber φ≤the 15mm of described heat exchanger tube, in the present embodiment, described heat exchanger tube comprises bilevel described the first heat exchanger tube 3, described the second heat exchanger tube 7 and described corner elbow 4, the geomery of described the first heat exchanger tube 3 and described the second heat exchanger tube 7 and the setting of arranging are consistent with the description of above efficient heat-exchanging pipe, at this, do not add and repeat, arranging of described the first heat exchanger tube 3 and described the second heat exchanger tube 7 can be a row or multi-row, while adopting many row's heat exchanger tubes, adjacent two rows' described the first heat exchanger tube 3 and described the second heat exchanger tube 7 are welded to connect by described corner elbow 4, cold-producing medium is flowed through after some row's heat exchanger tubes, in described collector tube 5, collect through described discharge connection 6 and flow out.
Evaporative condenser of the present utility model, its heat exchanger tube heat conductivility is good, caliber is less, thereby heat transfer property and the resistance to pressure of heat exchanger have greatly been strengthened, be conducive to improve the refrigeration performance of evaporative condenser, and simple in structure, can manufacture flat compact-type, take up room less, thereby contribute to reduce the volume of condenser product.
Simultaneously, it is to be noted, described in evaporating type condensing of the present utility model, arranging of heat exchanger tube can be arranged to three layers as required, four layers or multilayer, as long as meet, the pipeline stagger arrangement of different layers is arranged out, simultaneously, on high efficient heat exchanging tubular construction of the present utility model, be not limited to this, adjacent described the first heat exchanger tube 3 and described the second heat exchanger tube 7 can be adjusted its difference in height as required, simultaneously, the height dimension of described the first heat exchanger tube 3 and described the second heat exchanger tube 7 can be not identical yet, and, can as required described the first heat exchanger tube 3 and described the second heat exchanger tube 7 be arranged to independent " Ω " upwards or the bend pipe of outstanding formation downwards structure, such as described the first heat exchanger tube 3 consists of reclinate " Ω " bend pipe structure, described the second heat exchanger tube 7 consists of " Ω " bend pipe structure being bent upwards, between adjacent " Ω " bend pipe, by some short straight tubes, be communicated with.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And among the protection domain that the apparent variation of being extended out thus or change are still created in the utility model.
Claims (12)
1. an efficient heat-exchanging pipe, comprises discharge and collector tube, it is characterized in that: between described discharge and described collector tube, be communicated with some heat exchange tube units, described heat exchange tube unit comprises
The first heat exchanger tube, the import of described the first heat exchanger tube is communicated with described discharge,
The second heat exchanger tube, the outlet of described the second heat exchanger tube is communicated with described collector tube, and on relatively described the first heat exchanger tube of described the second heat exchanger tube, lower leaf stagger arrangement is arranged;
Corner elbow, is arranged between described the first heat exchanger tube and described the second heat exchanger tube, and the outlet of described the first heat exchanger tube is communicated with the entrance of described the second heat exchanger tube.
2. efficient heat-exchanging pipe according to claim 1, is characterized in that: described the first heat exchanger tube, described the second heat exchanger tube are all wavy, and the crest of the crest of described the first heat exchanger tube or trough and described the second heat exchanger tube or trough stagger and arrange.
3. efficient heat-exchanging pipe according to claim 2, is characterized in that: the wavy of described the first heat exchanger tube, the second heat exchanger tube upwards given prominence to and formed downwards by a plurality of " Ω ".
4. efficient heat-exchanging pipe according to claim 3, is characterized in that: the caliber of described the first heat exchanger tube, described the second heat exchanger tube is not more than 15mm.
5. efficient heat-exchanging pipe according to claim 4, it is characterized in that: the external diameter of described the first heat exchanger tube and described the second heat exchanger tube is D, level interval between described the first heat exchanger tube and described the second heat exchanger tube is L, and between the two, relation need meet: 1.5D≤L≤3D.
6. efficient heat-exchanging pipe according to claim 5, it is characterized in that: the height of described the first heat exchanger tube and described the second heat exchanger tube is identical and be S2, the vertical drop that described the first heat exchanger tube and described the second heat exchanger tube stagger is up and down S1, and between the two, relation need meet: 0.5S2≤S1≤2S2.
7. efficient heat-exchanging pipe according to claim 6, is characterized in that: the vertical drop that the first heat exchanger tube, the second heat exchanger tube stagger up and down meets: " Ω " that described the first heat exchanger tube projects upwards and described the second heat exchanger tube be the center superposition of outstanding " Ω " downwards.
8. efficient heat-exchanging pipe according to claim 7, is characterized in that: described the first heat exchanger tube, described the second heat exchanger tube are riffled tube.
9. efficient heat-exchanging pipe according to claim 8, is characterized in that: on described discharge, be provided with inlet connection, on described collector tube, be provided with discharge connection.
10. efficient heat-exchanging pipe according to claim 9, is characterized in that: described inlet connection and described discharge connection are communicated with the mouth of pipe of described discharge and the mouth of pipe of described collector tube respectively.
11. efficient heat-exchanging pipes according to claim 9, is characterized in that: described inlet connection and described discharge connection are communicated with the sidewall of described discharge and the sidewall of described collector tube respectively.
12. 1 kinds of evaporative condensers, comprise casing, heat exchange coil, and blower fan, water-collecting tray, water circulating pump and spray equipment, is characterized in that: described evaporative condenser comprises the efficient heat-exchanging pipe described in any one in claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075581.0U CN203811002U (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube and evaporative condenser thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075581.0U CN203811002U (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube and evaporative condenser thereof |
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| Publication Number | Publication Date |
|---|---|
| CN203811002U true CN203811002U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075581.0U Withdrawn - After Issue CN203811002U (en) | 2014-02-21 | 2014-02-21 | Efficient heat exchange tube and evaporative condenser thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN203811002U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808185A (en) * | 2014-02-21 | 2014-05-21 | 杭州沈氏换热器有限公司 | Efficient heat exchange tube and evaporative condenser |
| CN105371537A (en) * | 2015-12-21 | 2016-03-02 | 常熟市久昇电器有限公司 | Plate and tube type refrigerator efficient condenser |
| CN107388638A (en) * | 2017-08-24 | 2017-11-24 | 天津商业大学 | A kind of overall inflation bilateral reducer pipe cross flow heat exchanger |
-
2014
- 2014-02-21 CN CN201420075581.0U patent/CN203811002U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808185A (en) * | 2014-02-21 | 2014-05-21 | 杭州沈氏换热器有限公司 | Efficient heat exchange tube and evaporative condenser |
| CN103808185B (en) * | 2014-02-21 | 2015-11-25 | 杭州沈氏节能科技股份有限公司 | A kind of efficient heat-exchanging pipe and evaporative condenser thereof |
| CN105371537A (en) * | 2015-12-21 | 2016-03-02 | 常熟市久昇电器有限公司 | Plate and tube type refrigerator efficient condenser |
| CN107388638A (en) * | 2017-08-24 | 2017-11-24 | 天津商业大学 | A kind of overall inflation bilateral reducer pipe cross flow heat exchanger |
| CN107388638B (en) * | 2017-08-24 | 2023-07-21 | 天津商业大学 | Whole inflation two side reducing pipe cross flow heat exchanger |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20151125 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |