CN101886891B - Refrigerant guiding device and heat exchanger with same - Google Patents
Refrigerant guiding device and heat exchanger with same Download PDFInfo
- Publication number
- CN101886891B CN101886891B CN2010102349894A CN201010234989A CN101886891B CN 101886891 B CN101886891 B CN 101886891B CN 2010102349894 A CN2010102349894 A CN 2010102349894A CN 201010234989 A CN201010234989 A CN 201010234989A CN 101886891 B CN101886891 B CN 101886891B
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- Prior art keywords
- conduit
- guiding device
- refrigerant guiding
- heat exchanger
- guide groove
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 63
- 239000002826 coolant Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001212149 Cathetus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a refrigerant guiding device. The refrigerant guiding device comprises a conduit, wherein the conduit is provided with a front end and a rear end; and at least one conduit ferrule which continuously extends is formed on the conduit wall of the conduit in the length direction of the conduit. According to the refrigerant guiding device, the conduit ferrule on the conduit is an integral ferrule which is extended in the length direction of the conduit continuously, so the refrigerant guiding device has the advantages of simple structure and machining, uniform distribution of refrigerant, reduction of pressure drop of the refrigerant and improvement on the heat exchange performance of a heat exchanger. The invention also discloses the heat exchanger with the refrigerant guiding device.
Description
Technical field
The present invention relates to refrigeration technology field, especially relate to a kind of refrigerant guiding device and heat exchanger with it.
Background technology
Traditionally; In order to make the cold-producing medium distributed uniform in each heat exchanger tube in the heat exchanger; Usually can in inlet collecting, insert the cold-producing medium distributing pipe; This cold-producing medium distributing pipe is inserted in the inlet collecting, and turning up the soil at interval on the conduit is provided with many openings, and cold-producing medium is assigned in each heat exchanger tube through these openings.
Each opening on the cold-producing medium distributing pipe is responsible for the heat exchanger tube assignment system cryogen in a zone.In the process of distributing pipe, the size of opening is difficult to accomplish unanimity, and the inconsistent assignment affects to cold-producing medium of opening is bigger, can cause the cold-producing medium maldistribution in system's running thus.In addition, because opening is less, quantity is more, and spacing is little, and therefore processing is very difficult, and the uniformity that cold-producing medium distributes more is difficult to guarantee.If the increase aperture pitch, the conduit of equal length, open amount has just reduced, and the area of cold-producing medium circulation just reduces, and can increase the cold-producing medium pressure drop of conduit of flowing through, and then influences the heat exchange property of heat exchanger.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, one object of the present invention is to propose a kind of refrigerant guiding device that has, and this refrigerant guiding device structure is simple with processing, and the distribution degree of cold-producing medium is even, and the pressure drop of cold-producing medium reduces.
Another object of the present invention is to propose a kind of heat exchanger with above-mentioned refrigerant guiding device.
Refrigerant guiding device according to first aspect present invention embodiment comprises conduit, and said conduit is limited with front-end and back-end, and wherein the length direction along conduit is provided with the guide groove that at least one extends continuously on the tube wall of conduit.
According to the refrigerant guiding device of the embodiment of the invention, supravasal guide groove is the whole piece groove that extends continuously along the catheter length direction, so structure is simple with processing, the cold-producing medium distributed uniform, and the pressure drop reduction of cold-producing medium has improved the heat exchange property of heat exchanger.
In addition, refrigerant guiding device according to the above embodiment of the present invention can also have following additional technical characterictic:
Said conduit has identical cross-sectional area along the length direction of conduit, and wherein the interior cross-sectional area of conduit and the ratio of the gross area of guide groove are in 0.003～0.49 scope.
The length of guide groove is the 1/4-1 of the effective length of conduit.
Said guide groove is one of following shape: rectangle, ellipse, Long Circle or their combination.
Said guide groove spiral or extend obliquely on the length direction of conduit with respect to the length direction of conduit.
The length direction that said guide groove is parallel to conduit extends.
Said guide groove along the direction from the front end of conduit to the rear end gradually or interim the increase.
The cross-sectional area of said conduit along the direction from the front end of conduit to the rear end gradually or stage reduce.
The cross section of said conduit is one of following shape: circle, and ellipse, square, Long Circle, D shape, or their combination.
The heat exchanger of embodiment comprises first header according to a further aspect of the invention; Second header, said second header and the spaced apart preset distance of first header; Heat exchanger tube, the two ends of said heat exchanger tube link to each other with first and second headers respectively and are communicated with first and second headers with the coolant channel through wherein; Fin, said fin are separately positioned between the adjacent heat exchanger tube; And refrigerant guiding device, said refrigerant guiding device is inserted at least one header in first and second headers, and wherein said refrigerant guiding device is according to the described refrigerant guiding device of first aspect present invention.
Alternatively, the angle between the opening direction of said guide groove and the cold-producing medium flow direction in heat exchanger tube is in the scope of 90 degree-270 degree.
And then the rear end of said refrigerant guiding device extends to the rear end of said at least one header.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is that the master according to the refrigerant guiding device of first embodiment of the invention looks sketch map;
Fig. 2 is the viewgraph of cross-section of refrigerant guiding device shown in Figure 1;
Fig. 3 is that the master according to the refrigerant guiding device of second embodiment of the invention looks sketch map;
Fig. 4 is the viewgraph of cross-section of refrigerant guiding device shown in Figure 3;
Fig. 5 is that the master according to the refrigerant guiding device of third embodiment of the invention looks sketch map;
Fig. 6 is the viewgraph of cross-section of refrigerant guiding device shown in Figure 5;
Fig. 7 is that the master according to the refrigerant guiding device of fourth embodiment of the invention looks sketch map;
Fig. 8 is the viewgraph of cross-section of refrigerant guiding device shown in Figure 7;
Fig. 9 is that the master according to the refrigerant guiding device of fifth embodiment of the invention looks sketch map;
Figure 10 is the viewgraph of cross-section of refrigerant guiding device shown in Figure 9;
Figure 11 a is that the master according to the refrigerant guiding device of sixth embodiment of the invention looks sketch map;
Figure 11 b-11f is the viewgraph of cross-section of refrigerant guiding device counterpart shown in Figure 11 a;
Figure 12 a is that the master according to the refrigerant guiding device of seventh embodiment of the invention looks sketch map;
Figure 12 b-12e is the viewgraph of cross-section of refrigerant guiding device counterpart shown in Figure 12 a;
Figure 13 shows the length relation sketch map of cold-producing medium sendout and refrigerant guiding device;
The sketch map that concerns of the interior cross-sectional area that Figure 14 shows refrigerant guiding device and the ratio of the gross area of guide groove and cold-producing medium distributed uniform degree;
Figure 15 shows the sketch map of heat exchanger according to an embodiment of the invention;
Figure 16 shows the partial schematic sectional view of heat exchanger shown in Figure 15; With
Figure 17 shows the interior sketch map of first header that refrigerant guiding device is inserted into heat exchanger.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; Term " vertically ", " laterally ", " on ", the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side " or position relation be for based on orientation shown in the drawings or position relation; Only be for the ease of describing the present invention rather than requiring the present invention therefore can not be interpreted as limitation of the present invention with specific azimuth configuration and operation.
Refrigerant guiding device according to the embodiment of the invention is described with reference to the drawings below.
At first; In the following description; Be inserted into refrigerant guiding device in the inlet collecting of heat exchanger and describe as refrigerant distributing device; Certainly it will be appreciated that, also can be inserted into according to the refrigerant guiding device of the embodiment of the invention in the outlet header of heat exchanger as the cold-producing medium gathering-device.
The distributed uniform degree of cold-producing medium is at first described with reference to Figure 13 and 15 below.Shown in figure 13, the cold-producing medium sendout is along the variation relation of conduit 5 length directions, wherein m in the heat exchanger tube 3 of heat exchanger
TotalBe refrigerant flow, L1 is the effective length of conduit 5, here, it will be appreciated that, the effective length L1 of conduit 5 is meant that conduit 5 is inserted into the interior length (with reference to Figure 15) of header of heat exchanger.Figure 13 cathetus S1 representes the perfect condition of cold-producing medium distributed uniform, promptly along the length direction of conduit 5 everywhere the sendout of cold-producing medium all equate; Curve S 2 expression cold-producing mediums among Figure 13 distribute virtual condition, and some local cold-producing medium distributes less, and promptly curve S 2 is lower than straight line S1, and some local cold-producing medium distributes more, and promptly curve S 2 is higher than straight line S1.Curve S 2 is that cold-producing medium distributes the difference zone with the zone that straight line S1 intersects.With cold-producing medium total flow m
TotalDeduct and distribute measures of dispersion absolute value sum Δ m again divided by cold-producing medium total flow m
TotalJust get cold-producing medium distributed uniform degree U, that is: U=(m
Total-Δ m)/m
Total
As illustrated in fig. 1 and 2; Refrigerant guiding device comprises conduit 5 according to an embodiment of the invention; Conduit 5 has front end (left end among Fig. 1) and rear end (right-hand member among Fig. 1 promptly is inserted into the end in the header of heat exchanger, referring to Figure 15 and 17); On the tube wall of conduit 5 along its length direction (left and right directions among Fig. 1; Also can be called longitudinal direction) be provided with the guide groove 51 that at least one extends continuously, here, guide groove 51 is meant that along continuous extension of the length direction of conduit 5 guide groove 51 is a continuous whole piece groove on the length direction of conduit 5.
In the embodiment shown in Fig. 1 and 2, the quantity of guide groove 51 is one.In some embodiments of the invention, shown in Fig. 3 and 4, the quantity of guide groove 51 is two, and alternatively, two guide grooves 51 are relative in the radial direction conduit 5.In other embodiment of the present invention, as illustrated in Figures 5 and 6, the quantity of guide groove 51 is three, and alternatively, shown in Fig. 7 and 8, the quantity of guide groove 51 is four.Need to prove that the quantity of guide groove 51 is not limited to this, the quantity of guide groove 51 can be provided with as required.
In the embodiment shown in Fig. 1-8, the cross section of conduit 5 is circular.Yet the present invention is not limited to this, and alternatively, the cross section of conduit 5 also can be ellipse, and is square, Long Circle, D shape, the perhaps combination of multiple shape (shown in Figure 11 a-11f)
In the embodiment shown in Fig. 1-8, the length direction that guide groove 51 is parallel to conduit 5 extends, and in other words, the length direction of guide groove 51 is parallel to the length direction of conduit 5.In optional examples more of the present invention, guide groove 51 can extend along the length direction spiral of conduit 5.In addition, guide groove 51 also can extend with respect to the length direction of conduit 5 obliquely, and promptly the length direction of the bearing of trend of guide groove 51 and conduit 5 forms an angle.
Shown in Fig. 1-8, guide groove 51 is a rectangle, yet the present invention is not limited to this, and for example, guide groove 51 also can be ellipse, Long Circle, or their combination, and in other words, guide groove 51 can be formed by connecting multiple shape.
Refrigerant guiding device according to the embodiment of the invention; On conduit 5, form the groove that extends continuously along its length; Therefore structure and processing are simple, have avoided being provided with the influence of a plurality of independently openings to the cold-producing medium distributing uniformity, simultaneously because the increase of the opening size of assignment system cryogen; Thereby also reduced the pressure drop of cold-producing medium, improved the heat exchange property of heat exchanger.
In the embodiment shown in Fig. 1-8, guide groove 51 is consistent size on the length direction of conduit 5.Like Fig. 9 and shown in Figure 10, the size of guide groove 51 along the direction from the front end of conduit 5 to the rear end gradually or interim the increase.In constant conduit 5 inside of caliber; Cold-producing medium flow velocity inside reduces along the direction from the front end of conduit 5 to the rear end gradually; Therefore interim or become big guide groove 51 gradually and can make cold-producing medium more even in the distribution of 5 pairs of cold-producing mediums of whole piece guide groove, improve the heat exchange property of heat exchanger thus.
Shown in Figure 11 a-11f, in some embodiments of the invention, the internal diameter of conduit 5 can reduce along the direction from its front end to the rear end gradually.Alternatively, shown in Figure 12 a-12f, the internal diameter of conduit 5 can reduce along the direction stage from its front end to the rear end.Since the internal diameter of conduit 5 along the direction from its front end to the rear end gradually or stage reduce, therefore can make the flow velocity of cold-producing medium conduit 5 in even, thereby improve the uniformity of distributing, the heat exchange property of raising heat exchanger.
In some embodiments of the invention, the length L 2 of guide groove 51 is the 1/4-1 of the effective length L1 of conduit 5, can further improve the distribution performance of cold-producing medium thus, improves heat exchange property.
In some embodiments of the invention, when the interior cross-sectional area A 2 of conduit 5 is consistent along its length direction, shown in figure 14; Show the relation of gross area A1 with the ratio and the cold-producing medium distributed uniform degree U of the interior cross-sectional area A 2 of conduit 5 of guide groove 51; As can be seen from Figure 14, the ratio of the interior cross-sectional area A 2 of conduit 5 and the gross area A1 of guide groove 51 is in 0.003～0.49 scope, and cold-producing medium distributed uniform degree U changes little; It is more even that thereby cold-producing medium distributes, and improves the heat exchange property of heat exchanger.
Therefore, according to the refrigerant guiding device of the embodiment of the invention, through at the continuous guide groove of vertical formation of conduit 5, make that the structure of refrigerant guiding device and processing are simple, cold-producing medium distributed uniform degree improves, and has reduced the pressure drop of cold-producing medium.
Heat exchanger according to the embodiment of the invention is described with reference to the drawings below.
Shown in figure 15, heat exchanger comprises first header 1, the second header 2, heat exchanger tube 3, fin 4 and the refrigerant guiding device 5 according to an embodiment of the invention.
In some embodiments of the invention; Shown in figure 16; In the time of in conduit 5 is inserted into first header 1 and second header 2, the angle between opening direction D1 of guide groove 51 (being the direction that cold-producing medium flows out from guide groove) and the flow direction D2 of cold-producing medium in heat exchanger tube 3 is in the scope of 90 degree-270 degree, and the distributed uniform degree of cold-producing medium further improves thus; Strengthened distribution effects, reduced cold-producing medium and divided the pairing influence that cold-producing medium gets into heat exchanger tube 3.
In examples more of the present invention, as stated, the length L 2 of guide groove 51 is the 1/4-1 of the effective length L1 of conduit 5, in the example shown in Figure 15, and L2=L1, promptly guide groove 51 is opened on the whole effective length of conduit 5.The rear end of conduit 5 extends to the rear end (right-hand member among Figure 15) of first header 1 and second header 2, and for example, the rear end of conduit 5 can be soldered on the rear end face of first header 1 and second header 2, thus can positioning catheter 5.In optional examples more of the present invention, the rear end of first header 1 and second header 2 can be by sealing plate 6 sealings.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (10)
1. refrigerant guiding device; It is characterized in that; Comprise conduit, said conduit is limited with front-end and back-end, and wherein the length direction along conduit is provided with the guide groove that at least one extends continuously on the tube wall of conduit; Said conduit has identical cross-sectional area along the length direction of conduit, and wherein the interior cross-sectional area of conduit and the ratio of the gross area of guide groove are in 0.003～0.49 scope.
2. refrigerant guiding device according to claim 1 is characterized in that, the length of guide groove is the 1/4-1 of the effective length of conduit.
3. refrigerant guiding device according to claim 1 is characterized in that, said guide groove is one of following shape: rectangle, ellipse, Long Circle or their combination.
4. refrigerant guiding device according to claim 1 is characterized in that, said guide groove spiral or extend obliquely with respect to the length direction of conduit on the length direction of conduit.
5. refrigerant guiding device according to claim 1 is characterized in that, the length direction that said guide groove is parallel to conduit extends.
6. refrigerant guiding device according to claim 1 is characterized in that, said guide groove along the direction from the front end of conduit to the rear end gradually or interim the increase.
7. refrigerant guiding device according to claim 1 is characterized in that, the cross section of said conduit is one of following shape: circle, and ellipse, square, Long Circle, D shape, or their combination.
8. a heat exchanger is characterized in that, comprising:
First header;
Second header, said second header and the spaced apart preset distance of first header;
Heat exchanger tube, the two ends of said heat exchanger tube link to each other with first and second headers respectively and are communicated with first and second headers with the coolant channel through wherein;
Fin, said fin are separately positioned between the adjacent heat exchanger tube; With
Refrigerant guiding device, said refrigerant guiding device are inserted at least one header in first and second headers, and wherein said refrigerant guiding device is according to each described refrigerant guiding device of claim 1-7.
9. according to the heat exchanger of claim 8, it is characterized in that the angle between the opening direction of said guide groove and the cold-producing medium flow direction in heat exchanger tube is in the scope of 90 degree-270 degree.
10. according to the heat exchanger of claim 8, it is characterized in that the rear end of said refrigerant guiding device extends to the rear end of said at least one header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102349894A CN101886891B (en) | 2010-07-20 | 2010-07-20 | Refrigerant guiding device and heat exchanger with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102349894A CN101886891B (en) | 2010-07-20 | 2010-07-20 | Refrigerant guiding device and heat exchanger with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886891A CN101886891A (en) | 2010-11-17 |
| CN101886891B true CN101886891B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102349894A Active CN101886891B (en) | 2010-07-20 | 2010-07-20 | Refrigerant guiding device and heat exchanger with same |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011013340A1 (en) * | 2010-12-30 | 2012-07-05 | Linde Aktiengesellschaft | Distributor and heat exchanger device |
| CN103486896B (en) * | 2013-07-30 | 2015-05-27 | 杭州三花微通道换热器有限公司 | Manifold assembly and heat exchanger with same |
| CN104048548B (en) * | 2014-05-26 | 2016-01-27 | 杭州三花微通道换热器有限公司 | Adjustable refrigerant distributing device and the heat exchanger with it |
| CN105605962B (en) * | 2014-10-30 | 2018-02-06 | 丹佛斯微通道换热器（嘉兴）有限公司 | Refrigerant allocation component and heat exchanger |
| CN106959038A (en) * | 2016-01-08 | 2017-07-18 | 丹佛斯微通道换热器（嘉兴）有限公司 | Distributor and plate type heat exchanger for plate type heat exchanger |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000292077A (en) * | 1999-02-03 | 2000-10-20 | Nippon Soken Inc | Heat exchanger |
| JP2002022313A (en) * | 2000-07-06 | 2002-01-23 | Matsushita Refrig Co Ltd | Distributor |
| EP1548380A3 (en) * | 2003-12-22 | 2006-10-04 | Hussmann Corporation | Flat-tube evaporator with micro-distributor |
| CN100535555C (en) * | 2004-03-23 | 2009-09-02 | 昭和电工株式会社 | Heat exchanger |
| US20080023185A1 (en) * | 2006-07-25 | 2008-01-31 | Henry Earl Beamer | Heat exchanger assembly |
| WO2008048251A2 (en) * | 2006-10-13 | 2008-04-24 | Carrier Corporation | Method and apparatus for improving distribution of fluid in a heat exchanger |
| CN201425433Y (en) * | 2009-01-20 | 2010-03-17 | 三花丹佛斯（杭州）微通道换热器有限公司 | Micro-channel heat exchanger |
| CN101660870B (en) * | 2009-09-16 | 2012-07-18 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger capable of improving distribution performance of refrigerant |
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2010
- 2010-07-20 CN CN2010102349894A patent/CN101886891B/en active Active
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Effective date of registration: 20240710 Address after: No. 12, No. 289, Hangzhou economic and Technological Development Zone, Zhejiang, China Patentee after: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Country or region after: China Address before: No.289, No.12 street, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province, 310018 Patentee before: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Country or region before: China Patentee before: DANFOSS A/S Country or region before: Denmark |