CN101655297B - Evaporator - Google Patents
Evaporator Download PDFInfo
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- CN101655297B CN101655297B CN200810069974XA CN200810069974A CN101655297B CN 101655297 B CN101655297 B CN 101655297B CN 200810069974X A CN200810069974X A CN 200810069974XA CN 200810069974 A CN200810069974 A CN 200810069974A CN 101655297 B CN101655297 B CN 101655297B
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- exchange tube
- flow distribution
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Abstract
The invention relates to an evaporator, which comprises a heat exchanger pipe group on an entrance side, a heat exchanger pipe group on an exit side and a water chamber. The water chamber comprises an upper water chamber (4a) on the exit side and a lower water chamber (4b) on the exit side, wherein the upper water chamber (4a) and the lower water chamber (4b) are arranged at two ends of the heat exchanger pipe group on the exit side and communicated with the heat exchanger pipe group (1b) on the exit side; a lower water chamber (3b) on the entrance side is communicated with the lower water chamber (4b) on the exit side; an upper water chamber (3a) on the entrance side is communicated with a liquid inlet pipe (10); the upper water chamber (4a) on the exit side is communicated with a liquid outlet pipe (11); and fins (6) are welded between the heat exchanger pipes. The key point of the evaporator lies in that flow distributing devices capable of uniformly distributing refrigerant mass flow rate are arranged in the water chambers. Because a liquid refrigerant is uniform in the evaporator, the evaporator has a good refrigerating effect. The evaporator has the advantages of convenient manufacturing and assembling and small volume.
Description
Technical field
The present invention relates to a kind of evaporimeter that is used for air-conditioning, particularly relate to a kind of microtubule evaporimeter that is applied to air conditioning for automobiles.
Background technology
The extruding perforated micro-pipe is widely used in the compact heat exchangers such as automobile-used evaporimeter and condenser, and the microtubule evaporimeter falls the main challenger of formula vaporizer technology as layer, becomes main flow in the application of auto industry.But existing evaporimeter is owing to the gravity reason, the two phase flow of introducing can produce layering, and the resistance that flows from the import to the far-end is increased because microtubule is charged into runner, simultaneously make mass flow trend towards along hydroecium reducing gradually into microtubule, so caused in the hydroecium mass flow distribution inhomogeneous because continue to flow along Cheng Liuti.The inhomogeneities of mass flow distribution is to cause microtubule performance of evaporator main reasons for decrease in the hydroecium.For solving this technical problem, in hydroecium, increase a cold-producing medium distribution apparatus, make cold-producing medium vertically being evenly distributed along hydroecium; Or the some dividing plates of increase form a plurality of runners in hydroecium, thereby the hydroecium section that hydroecium is divided into several independent sealings, since the length of hydroecium section and in single runner the number of microtubule be the some of whole hydroecium and pipe number, by increasing runner mobile inhomogeneities is significantly improved, but such design but makes evaporimeter poor-performing under same core body thickness, and in order to reduce pressure drop loss, microtubule needs thicker and wideer, simultaneously, because the size of core body and microtubule is relative big, air side pressure falls higher.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of volume small and exquisite, good refrigeration effect evaporimeter.
Goal of the invention of the present invention is achieved through the following technical solutions: a kind of evaporimeter comprises entrance side heat-exchange tube group and outlet side heat-exchange tube group that the heat-exchange tube that is arranged in parallel is at certain intervals each other formed; With described entrance side heat-exchange tube group and the vertical hydroecium of described outlet side heat-exchange tube group, described hydroecium comprises entrance side upper tank and the entrance side lower header that is arranged on described entrance side heat-exchange tube group two ends and is connected with described entrance side heat-exchange tube group, the outlet side upper tank and the outlet side lower header that are arranged on described outlet side heat-exchange tube group two ends and are connected with described outlet side heat-exchange tube group, described entrance side lower header and described outlet side lower header are connected with each other logical; Described entrance side upper tank is connected with feed tube, and described outlet side upper tank is connected with drain pipe; Be welded with fin between the heat-exchange tube, it is characterized in that: be provided with the part flow arrangement that refrigerant mass fluxes is evenly distributed in the described hydroecium.
Described part flow arrangement can be preferably and comprise at least one flow distribution plate, and two parts are up and down divided into described hydroecium in the placement of described flow distribution plate.
Described flow distribution plate can comprise some tap holes, and described tap hole can be circular, oval, rectangle, and perhaps optimal design is other shapes as required, and its equivalent diameter preferably is not more than 20mm; Described tap hole can be arranged on the optional position of described flow distribution plate as required, can be on whole flow distribution plate, also can be forwardly or the rear portion, and its regularity of distribution is optimal design as the case may be.
For ease of installing and fixing heat-exchange tube, described flow distribution plate also comprises some installing holes, and the size and dimension of described installing hole is decided by the size and dimension of heat-exchange tube.
For making cold-producing medium realize cross flow one between the hydroecium upper and lower, the part or all of heat-exchange tube of described entrance side heat-exchange tube group and/or described outlet side heat-exchange tube group passes described flow distribution plate.
The specifically mode of passing of described heat-exchange tube can pass described installing hole and is fixed in the described installing hole for described heat-exchange tube, and fixed form can be welding, and the distance that its end stretches out described flow distribution plate is preferably 1mm～5mm.
The length of described flow distribution plate can be equal to or less than the longitudinal size of described hydroecium.
Realize that for making cold-producing medium two dimension flows, and can only be provided with a flow distribution plate that equates with the hydroecium longitudinal length in the described hydroecium between the hydroecium upper and lower.
For making cold-producing medium realize that between the hydroecium upper and lower multidimensional flows, in the same hydroecium polylith flow distribution plate can be set, the summation of polylith flow distribution plate length is less than the longitudinal length of hydroecium; The polylith flow distribution plate is preferably two or three, and described two or three flow distribution plates are arranged on the same horizontal plane each interval certain distance.
For making things convenient for the installation of flow distribution plate, the sidewall of described hydroecium is provided with groove, and described flow distribution plate inserts and is fixed in the described groove.
The invention has the beneficial effects as follows:
(1) owing to be provided with part flow arrangement in the hydroecium, it can make refrigerant mass fluxes be evenly distributed, so refrigerant flow in the hydroecium of the present invention and uniformity of temperature profile;
(2) comprise at least one flow distribution plate owing to described part flow arrangement can be preferably, so the cold-producing medium in the hydroecium distributes more evenly;
(3) because described flow distribution plate also comprises some tap holes, shunting effect is better, so the cold-producing medium in the hydroecium distributes more evenly;
(4) because two parts are up and down divided into described hydroecium in the placement of described flow distribution plate, the part or all of heat-exchange tube of described entrance side heat-exchange tube group and/or described outlet side heat-exchange tube group passes described flow distribution plate, therefore cold-producing medium can be realized cross flow one between the upper and lower of hydroecium, even cold-producing medium is realized two dimension or multidimensional and is flowed, thereby makes cold-producing medium being more evenly distributed in hydroecium between the upper and lower of hydroecium;
(5) because the mode of passing of described heat-exchange tube is that described flow distribution plate also comprises some installing holes, described heat-exchange tube passes described installing hole and is fixed in the described installing hole, therefore installing and fixing easily of heat-exchange tube, and the noise that evaporimeter is produced is little;
(6) because the distance that heat-exchange tube stretches out described flow distribution plate is 1mm～5mm, so the vibration of heat-exchange tube in hydroecium is little;
(7) because the sidewall of hydroecium is provided with groove, described flow distribution plate inserts and is fixed in the described groove, therefore can be very convenient must being installed in the hydroecium with flow distribution plate.
In a word, because said structure can make the more compact structure of evaporimeter under the prerequisite that keeps same refrigeration, volume is littler.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention 1;
Fig. 4 is another schematic diagram of the embodiment of the invention 1;
Fig. 5 is the operation principle schematic diagram of the embodiment of the invention 1;
Fig. 6 is the structural representation of parts 2 among Fig. 3 and Fig. 4;
Fig. 7 is the local enlarged diagram of Fig. 6;
Fig. 8 is another structural representation of parts 2 among Fig. 3 and Fig. 4;
Fig. 9 is another structural representation of parts 2 among Fig. 3 and Fig. 4;
Figure 10 is another structural representation of the embodiment of the invention 1;
Figure 11 is another structural representation of the embodiment of the invention 1;
Figure 12 is another structural representation of the embodiment of the invention 1;
Figure 13 is the structural representation of hydroecium in the embodiment of the invention 1;
Figure 14 is the structural representation of the embodiment of the invention 2;
Figure 15 is another structural representation of the embodiment of the invention 2;
Figure 16 is another structural representation of the embodiment of the invention 2;
Figure 17 is the structural representation of the embodiment of the invention 3.
The specific embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of evaporimeter comprises: entrance side heat-exchange tube group 1a and outlet side heat-exchange tube group 1b that the heat-exchange tube 5 that is arranged in parallel is at certain intervals each other formed; With described entrance side heat-exchange tube group 1a and the vertical hydroecium of described outlet side heat-exchange tube group 1b, described hydroecium comprises entrance side upper tank 3a and the entrance side lower header 3b that is arranged on described entrance side heat-exchange tube group 1a two ends and is connected with described entrance side heat-exchange tube group 1a, the outlet side upper tank 4a and the outlet side lower header 4b that are arranged on described outlet side heat-exchange tube group 1b two ends and are connected with described outlet side heat-exchange tube group 1b, described entrance side lower header 3b and described outlet side lower header 4b are connected with each other logical; Described entrance side upper tank 3a is connected with feed tube 10, and described outlet side upper tank 4a is connected with drain pipe 11; Be welded with fin 6 between the heat-exchange tube.
As Fig. 3, Fig. 4 and shown in Figure 5, be provided with the part flow arrangement that refrigerant mass fluxes is evenly distributed among the described entrance side upper tank 3a, described part flow arrangement is a flow distribution plate 2 that comprises some tap holes 7, described flow distribution plate 2 is divided into two parts up and down, the flow direction of arrow express liquid cold-producing medium with described entrance side upper tank 3a; As shown in figure 13, be provided with groove 9 in the hydroecium, therefore, described flow distribution plate 2 is inserted and secured on the groove 9 among the entrance side upper tank 3a; Extremely shown in Figure 9 as Fig. 6, described tap hole 7 be shaped as rectangle, its position can be arranged arbitrarily on flow distribution plate 2, certainly, the shape of tap hole also can be designed to circle as required, oval or other arbitrary shapes, its equivalent diameter is 10mm, certainly, its size can not limit yet, as long as its equivalent diameter is not more than 20mm; Described flow distribution plate 2 also comprises some installing holes 8, in conjunction with Fig. 4 and shown in Figure 5, and being welded in the described installing hole 8 of described heat-exchange tube 5, its end stretches out described flow distribution plate 2, and the height that stretches out is preferably 1mm～5mm.
In the present embodiment, the length of inserting the flow distribution plate 2 among the entrance side upper tank 3a equals the longitudinal length of described entrance side upper tank 3a (also can be less than the longitudinal size of described entrance side upper tank 3a, as shown in Figure 10 and Figure 11; Also can insert two flow distribution plates 2 and 2a, as shown in figure 12).
In conjunction with shown in Figure 5, arrow is represented the flow direction of cold-producing medium, during the evaporator operation of present embodiment, liquid refrigerant enters the top of described entrance side upper tank 3a from feed tube 10, liquid refrigerant can be divided into three parts, and wherein part of refrigerant flows directly into entrance side lower header 3b from the micropore of heat-exchange tube 5; The second portion cold-producing medium, flows into the microtubule in the heat-exchange tube 5 and then flows among the entrance side lower header 3b along journey because the far-end of the driving of inertial flow to entrance side upper tank 3a top advances on the top of entrance side upper tank 3a; The third part cold-producing medium enters the bottom of entrance side upper tank 3a by described tap hole 7, drive the far-end that flows to entrance side upper tank 3a bottom by flowing pressure, because the far-end pressure of the relative feed tube 10 in top of entrance side upper tank 3a is lower, therefore the cold-producing medium of bottom enters the top of hydroecium 3a by tap hole 7 herein herein, flow in the micropore of heat-exchange tube 5 herein then, and then flow among the entrance side lower header 3b.
Embodiment 2: as depicted in figs. 1 and 2, a kind of evaporimeter comprises: entrance side heat-exchange tube group 1a and outlet side heat-exchange tube group 1b that the heat-exchange tube 5 that is arranged in parallel is at certain intervals each other formed; With described entrance side heat-exchange tube group 1a and the vertical hydroecium of described outlet side heat-exchange tube group 1b, described hydroecium comprises entrance side upper tank 3a and the entrance side lower header 3b that is arranged on described entrance side heat-exchange tube group 1a two ends and is connected with described entrance side heat-exchange tube group 1a, the outlet side upper tank 4a and the outlet side lower header 4b that are arranged on described outlet side heat-exchange tube group 1b two ends and are connected with described outlet side heat-exchange tube group 1b, described entrance side lower header 3b and described outlet side lower header 4b are connected with each other logical; Described entrance side upper tank 3a is connected with feed tube 10, and described outlet side upper tank 4a is connected with drain pipe 11; Be welded with fin 6 between the heat-exchange tube.
As shown in figure 14, different is for present embodiment and embodiment 1, also insert the flow distribution plate 2d that is fixed with some tap hole 7d in the groove 9 of outlet side upper tank 4a, described flow distribution plate 2d divides into up and down two parts with described outlet side upper tank 4a, and described tap hole 7d is a rectangular opening, certainly also as required optimal design be other shapes, its equivalent diameter is 5mm, certainly, its size can not limit yet, as long as its equivalent diameter is not more than 20mm; On the described flow distribution plate 2d installing hole is not set, therefore the heat-exchange tube 5 among the outlet side upper tank 4a does not pass described flow distribution plate 2d, but in its underpart, installing hole 8 can certainly be set thereon, heat-exchange tube 5 among the outlet side upper tank 4a passes the top that described flow distribution plate 2d arrives hydroecium by installing hole 8, flow distribution plate 2 and the 2d among entrance side upper tank 3a and the outlet side upper tank 4a all is not provided with installing hole yet, heat-exchange tube 5 described in these two hydroeciums all places the bottom of hydroecium, as shown in figure 16.Other structures of present embodiment are identical with embodiment 1.
During the evaporator operation of present embodiment, flow into the far-end of the relative feed tube 10 of refrigerant flow direction in the entrance side upper tank 3a top, directly enter the bottom of described entrance side upper tank 3a and flow into the micropore the heat-exchange tube 5 and then flow among the entrance side lower header 3b from tap hole 7 along journey; The cold-producing medium that flows into described outlet side upper tank 4a by the top that tap hole 7d flow into outlet side upper tank 4a, flows into drain pipe 11 from the bottom of outlet side upper tank 4a then.
Embodiment 3: as shown in figure 17, different is for present embodiment and embodiment 1: also insert among entrance side lower header 3b and the outlet side lower header 4b and be fixed with flow distribution plate 2b and 2c, described flow distribution plate 2b and 2c divide into two parts up and down with described entrance side lower header 3b and described outlet side lower header 4b; Described flow distribution plate 2b and 2c are provided with tap hole 7b and 7c; Also be provided with installing hole on described flow distribution plate 2b and the 2c, heat-exchange tube 5 is welded in the described installing hole, and its end stretches out described flow distribution plate 2b and 2c, and the height that stretches out is preferably 1mm～5mm; The concrete shape of flow distribution plate 2b and 2c can be as Fig. 6 to shown in Figure 9.Other structures of present embodiment are identical with embodiment 1.
During the evaporator operation of present embodiment, liquid refrigerant part in the inflow entrance side lower header 3b bottom directly flows to the via hole (not shown) between entrance side lower header 3b and the outlet side lower header 4b and enters among the outlet side lower header 4b, another part flows into the top of entrance side lower header 3b from tap hole 7c, drive the pressure lower that flows to entrance side lower header 3b top by flowing pressure, cold-producing medium herein enters the bottom of entrance side lower header 3b by tap hole 7c herein, then by described via hole (not shown) and then flow among the outlet side lower header 4b; A liquid refrigerant part that flows among the outlet side lower header 4b directly flow among the outlet side upper tank 4a by the micropore in the heat-exchange tube 5, the second portion cold-producing medium in the bottom of outlet side lower header 4b since the far-end of the driving of inertial flow to outlet side lower header 4b bottom advance, along in the microtubule and then inflow place oral-lateral upper tank 4a in the journey inflow heat-exchange tube 5, the third part cold-producing medium enters the top of outlet side lower header 4b by described tap hole 7, drive the far-end that flows to outlet side lower header 4b top by flowing pressure, because the far-end pressure of the described relatively via hole (not shown) in bottom of outlet side lower header 4b is lower, therefore the cold-producing medium on top enters the bottom of outlet side lower header 4b by tap hole 7 herein herein, flow in the micropore of heat-exchange tube 5 herein then, and then flow among the outlet side upper tank 4a.
The present invention includes but be not limited to the above specific embodiment,, all drop in protection scope of the present invention as long as in the hydroecium of evaporimeter, be provided with the part flow arrangement that refrigerant mass fluxes is evenly distributed.
Claims (6)
1. evaporimeter comprises:
Entrance side heat-exchange tube group (1a) and outlet side heat-exchange tube group (1b) that the heat-exchange tube that is arranged in parallel at certain intervals each other (5) is formed;
With described entrance side heat-exchange tube group (1a) and the vertical hydroecium of described outlet side heat-exchange tube group (1b), described hydroecium comprises and is arranged on described entrance side heat-exchange tube group (1a) two ends and entrance side upper tank (3a) that is connected with described entrance side heat-exchange tube group (1a) and entrance side lower header (3b)
Be arranged on described outlet side heat-exchange tube group (1b) two ends and outlet side upper tank (4a) that is connected with described outlet side heat-exchange tube group (1b) and outlet side lower header (4b),
Described entrance side lower header (3b) and described outlet side lower header (4b) are connected with each other logical;
Described entrance side upper tank (3a) is connected with feed tube (10), and described outlet side upper tank (4a) is connected with drain pipe (11); Be welded with fin (6) between the heat-exchange tube,
It is characterized in that: be provided with the part flow arrangement that refrigerant mass fluxes is evenly distributed in described entrance side heat-exchange tube group (1a) hydroecium vertical with described outlet side heat-exchange tube group (1b); Described part flow arrangement comprises at least one flow distribution plate (2), and two parts are up and down divided into the hydroecium at its place in the placement of described flow distribution plate (2); Described flow distribution plate (2) also comprises some tap holes (7); Described tap hole (7) is circle, ellipse or rectangle, and its equivalent diameter is not more than 20mm; Described flow distribution plate (2) also comprises some installing holes (8); The part or all of heat-exchange tube (5) of described entrance side heat-exchange tube group (1a) and/or described outlet side heat-exchange tube group (1b) passes described flow distribution plate (2).
2. evaporimeter as claimed in claim 1 is characterized in that: described heat-exchange tube (5) passes described flow distribution plate (2) by described installing hole (8); And be fixed in the described installing hole (8).
3. evaporimeter as claimed in claim 2 is characterized in that: described heat-exchange tube (5) is welded in the described installing hole (8), and its end stretches out described flow distribution plate (2) 1mm～5mm.
4. as claim 2 or 3 described evaporimeters, it is characterized in that: two or three described flow distribution plates (2) being provided with the each interval certain distance in the same hydroecium; The summation of two or three described flow distribution plates (2) length is less than the longitudinal size of its place hydroecium.
5. evaporimeter as claimed in claim 4 is characterized in that: two or three described flow distribution plates (2) are arranged on the same horizontal plane.
6. as claim 2 or 3 described evaporimeters, it is characterized in that: be provided with groove (9) with the sidewall of described entrance side heat-exchange tube group (1a) hydroecium vertical with described outlet side heat-exchange tube group (1b), described flow distribution plate (2) inserts and is fixed in the described groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069974XA CN101655297B (en) | 2008-07-11 | 2008-07-11 | Evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810069974XA CN101655297B (en) | 2008-07-11 | 2008-07-11 | Evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101655297A CN101655297A (en) | 2010-02-24 |
| CN101655297B true CN101655297B (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810069974XA Active CN101655297B (en) | 2008-07-11 | 2008-07-11 | Evaporator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101655297B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526626B (en) * | 2020-11-23 | 2023-07-21 | 广东美的白色家电技术创新中心有限公司 | Energy storage heat exchange device and electrical equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704699A (en) * | 2004-06-02 | 2005-12-07 | 陈苏红 | Automobile air-conditioner multilayer parallel cascade type evaporator |
| CN1950664A (en) * | 2004-05-11 | 2007-04-18 | 昭和电工株式会社 | Heat exchangers |
| CN101676659A (en) * | 2008-06-27 | 2010-03-24 | 艾泰斯热系统研发（上海）有限公司 | evaporator |
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2008
- 2008-07-11 CN CN200810069974XA patent/CN101655297B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950664A (en) * | 2004-05-11 | 2007-04-18 | 昭和电工株式会社 | Heat exchangers |
| CN1704699A (en) * | 2004-06-02 | 2005-12-07 | 陈苏红 | Automobile air-conditioner multilayer parallel cascade type evaporator |
| CN101676659A (en) * | 2008-06-27 | 2010-03-24 | 艾泰斯热系统研发（上海）有限公司 | evaporator |
Non-Patent Citations (1)
| Title |
|---|
| JP昭62-190394A 1987.08.20 |
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| CN101655297A (en) | 2010-02-24 |
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Effective date of registration: 20190410 Address after: 201108 No. 108 Chunguang Road, Xinzhuang Industrial Zone, Minhang District, Shanghai Patentee after: Air International (Shanghai) Co., Ltd. Address before: 5th Floor, West Building, 88 Qinjiang Road, Caohejing Emerging Technology Development Zone, Shanghai, 2003 Patentee before: Air International Thermal Systems (Shanghai) Co., Ltd. |
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