CN1566890A - Drainage arrangement for AC heat exchanger - Google Patents
Drainage arrangement for AC heat exchanger Download PDFInfo
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- CN1566890A CN1566890A CN 03137783 CN03137783A CN1566890A CN 1566890 A CN1566890 A CN 1566890A CN 03137783 CN03137783 CN 03137783 CN 03137783 A CN03137783 A CN 03137783A CN 1566890 A CN1566890 A CN 1566890A
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- fin
- flat tube
- discharge
- backing
- heat regenerator
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Abstract
The invention relates to a drainage facility for a regenerator. It comprises a tubular gas header, a condensing agent passage, at least two flat tubes, a plurality of radiating fins and a projecting part. With said structure, drainage is smooth, packaging efficiency can be improved, and heat transfer performance of the regenerator can be improved.
Description
Technical field
The present invention relates to a kind of fin of heat regenerator, particularly relate to a kind of frosting of the microchannel heat regenerator fin surface by delaying having most little condensing agent passages, improve drainage arrangement { the DRAINAGE APPARATUS FOR REGENERATOR} of the heat regenerator of drainage performance.
Background technology
Generally heat regenerator is meant substantially, freezing machine in the freeze cycle device that is made of compressor, freezing machine, expansion utensil and evaporimeter and evaporimeter.Heat regenerator be a kind of by with heat-shift on every side, make heat transfer medium cooling agent be transformed into gaseous state from liquid state or be transformed into from gaseous state liquid in, utilize the heat or the liberated heat that absorb in its transfer process, be applied to then refrigerate or the warm device of hiding.
Aforesaid heat regenerator can be divided into multiclass according to the shape difference, and wherein the structure of the heat regenerator that is widely known by the people most is to insert most fin, promptly so-called " fin and pipe " type in cooling tube.This type is mainly used in the evaporimeter of household appliances such as refrigerator, circulate coolant is carried out heat exchange by the wall and the outside of its cooling tube in cooling tube, at the outer peripheral face of cooling tube most thin fin of combining closely, increase contact-making surface with air with this, make the heat exchanger effectiveness maximization.
Plate heat regenerator is to be formed with specific condensing agent passage in the pipe of panel-shaped, carries out and outside heat exchange in the condensing agent passage of heat regenerator by circulate coolant.
The microchannel type is that the entrance side of cooling agent inflow and the outlet side of outflow are designed to the long tube body, and with in be provided with most condensing agent passages (route) flat tube be connected middle part between the long tube body of above-mentioned both sides, the cooling agent that flows into body by entrance side flows out in the merger of outlet side body after branching to above-mentioned flat tube separately.
Fig. 1 and Fig. 2 are the structural representation and the cutaway views thereof of existing microchannel type heat regenerator.
As shown in the figure, existing microchannel heat regenerator is by forming as the lower part, and inlet is connected in the discharge opening of compressor or is connected in the expansion utensil, make cooling agent with the first dispersion of the route of described each flat tube after most discharges (1) (2) of merger again; Be connected between the discharge (1) (2) in the right angle mode, and the many groups flat tube (3) that when the cooling agent that will flow into discharge (1) (2) disperses, carries out heat exchange with the outside; And closely be contacted with between many group flat tubes (3) fin (4) of the contact area of expansion and air.
Discharge is divided into entrance side discharge (1) and outlet side discharge (2), and the head end of each discharge (1) (2) is identical to its shape of tail end, cross-sectional area is also identical; Because of inserting the two ends of above-mentioned flat tube (3), in the middle of the outer peripheral face of discharge (1) (2), form the installing port (not shown) of welding fixing tube respectively.
Flat tube (3) portion within it is formed with most with four jiaos of section configurations to connect is the condensing agent passage (3a) of row, and it is fixing that its two ends are inserted in the pipe installing port and the welding of discharge (1) (2).
Fin (4) is the waveform shape of the thin aluminium alloy plate of long cubic type through many times nest formation, is combined closely in the corresponding surface of above-mentioned flat tube (3) both sides in its point of inflection position.
Moreover, for the contact area that increases with air, form the discharge stream of condensed water, laterally be formed with a plurality of shutters (4a) at fin (4).
As mentioned above, it is as follows existing microchannel heat regenerator to be applied to the situation of evaporimeter.
Particularly, through compressor, freezing machine and expansion utensil the time, the form that the cooling agent of gaseous state mixes with liquid gas flows in the entrance side discharge (1) of evaporimeter, freezing mixture is pushed into tail end from the head end of entrance side discharge (1) by pressure subsequently, through being communicated in the passage (3a) of the middle flat tube (3) of two discharges, flow to outlet side discharge (2).
In this process, when the wall of cooling agent and flat tube (3) carries out heat exchange, because of the wall of flat tube (3) contacts with fin (4), fin (4) absorbs heat from air, thereby cooling agent is vaporized, its major part converts gas to and is supplied to compressor suction again, circulates repeatedly with this.
This moment is because the temperature difference of fin and outside air, surface at fin (4) forms frosting, evaporimeter is stopped up in this frosting easily, can be by adopting extra defroster such as heater when actual motion, remove frost on fin surface and the shutter (4a) by heat fused.
For aforesaid existing heat regenerator, the condensed water that flows along the fin surface that tilts is that the horizontal direction (length direction of fin) around flat tube (3) falls at place, the contacted contact of flat tube (3) and fin (4), because the banner broad of flat tube (3), so delayed the water discharge time of condensed water, also had the possibility of frosting again.Be improved to structure as shown in Figure 3 in view of the above, be formed with the protuberance (3b) that keeps spacing in the two sides of the flat tube that is contacted with fin (4) (3), cause and maintain certain spacing distance between the two.Though this scheme helps the discharge of condensed water, reduced because of the contact area between flat tube (3) and the fin (4), thus can reduce heat transference efficiency, thus the efficient of heat regenerator reduced.
This shows that the drainage arrangement of above-mentioned existing heat regenerator still has many defectives, and demands urgently further being improved.
The problem that exists for the drainage arrangement that solves above-mentioned heat regenerator, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the drainage arrangement of above-mentioned existing heat regenerator exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, drainage arrangement in the hope of the heat regenerator of founding a kind of new structure, can improve the general drainage arrangement structure of the heat regenerator of existing routine on the market, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective of the drainage arrangement existence of existing heat regenerator, and provide a kind of drainage arrangement of heat regenerator of new structure, technical problem underlying to be solved be make its provide a kind of remove fast flow in the condensed water of fin surface in, prevent to reduce the drainage arrangement of the heat regenerator of the contact area between flat tube and the fin in advance.
Purpose of the present invention and solve its technical problem underlying and realize by the following technical solutions.The drainage arrangement of the heat regenerator that proposes according to the present invention is by constituting with the lower part: integrally formed discharge; Possess with condensing agent passage, at the flat tube more than at least two of described discharge outer peripheral face combination successively along discharge length direction and vertical connection in discharge; Between two contiguous flat tubes, leave certain spacing, and a plurality of fin of installing at the outer surface that is contacted with flat tube; And
Be arranged in the spacing of being separated by between the fin, in order to be closely attached on the both sides fin, at least at certain side formed maintenance spacing protuberance of flat tube on one side.
The object of the invention to solve the technical problems can also adopt following technical measures further to realize.
The drainage arrangement of aforesaid heat regenerator, wherein said maintenance spacing protuberance are vertical formation of length direction along flat tube.
The drainage arrangement of aforesaid heat regenerator, wherein said maintenance spacing protuberance is to protrude the centre that is formed at each flat tube respectively with vertical direction.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the drainage arrangement of heat regenerator of the present invention separately forms preceding backing and back backing with fin, and forms the protuberance of maintenance spacing between its preceding backing and back backing; Make to condense and shorten, thereby draining is smooth and easy in preceding backing and the condensed water of back backing or the displacement of the globule, and because of the assembling position of backing before being provided with easily with the back backing, thereby packaging efficiency can be improved.
Moreover, because can make preceding backing and the large-area flat tube that is contacted with of back backing, so can improve the heat transfer performance of heat regenerator.
The invention relates to a kind of drainage arrangement of heat regenerator, by tubular discharge; Possess with condensing agent passage along discharge length direction vertical connection in discharge, and, be combined with flat tube more than at least two successively at above-mentioned discharge outer peripheral face; Between two contiguous flat tubes, leave certain spacing, and a plurality of fin are installed at the outer surface that is adjacent to flat tube; And be arranged between the fin and isolate in the spacing, in order to be closely attached on the both sides fin, at least certain on one side the side formed maintenance spacing protuberance of flat tube constitute.According to regeneration machine of the present invention, shortened in preceding backing and the condensate water of back backing cohesion or the mobile distance of the globule, thereby made draining smooth and easy; In addition, because can set the assembling position of preceding backing and back backing easily, improved packaging efficiency; Moreover, because preceding backing can large tracts of land be contacted with flat tube with the back backing, thereby improved the heat transfer performance of heat regenerator.
In sum, the drainage arrangement of the heat regenerator of special construction of the present invention, have above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of the heat regenerator of existing microchannel type;
Fig. 2 and Fig. 3 are the structural plan figure between flat tube and the fin in the heat regenerator of existing microchannel type;
Fig. 4 is the structural representation of the heat regenerator of microchannel of the present invention type;
Fig. 5 is the structural plan figure between flat tube and the fin in the heat regenerator of microchannel of the present invention type;
Fig. 6 is the amplification schematic perspective view of a flat tube of the present invention.
1,2: discharge 3: flat tube
10: fin 11,12: preceding backing, back backing
11a, 12a: shutter 20: keep the spacing protuberance
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of drainage arrangement, structure, feature and the effect thereof of the heat regenerator that foundation the present invention is proposed, describe in detail as after.
See also Fig. 4, Fig. 5, shown in Figure 6, Fig. 4 is the structural representation of the heat regenerator of microchannel of the present invention type; Fig. 5 is the structural plan figure between flat tube and the fin in the heat regenerator of microchannel of the present invention type; Fig. 6 is the amplification schematic perspective view of a flat tube of the present invention.The drainage arrangement of heat regenerator of the present invention, it is mainly by integrally formed discharge; Possess vertical connection in the condensing agent passage of the length direction of discharge, at the outer peripheral face of the above-mentioned discharge plural at least flat tube of combination successively; Be contacted with the outer surface of flat tube, between two contiguous flat tubes, leave certain isolation distance and a plurality of fin of installing; And between fin in the isolation distance, in order to be closely attached on the both sides fin, and the maintenance spacing protuberance of side that is formed at the flat tube of a certain at least side constitutes.
As shown in the figure, microchannel of the present invention heat regenerator is to be connected in the discharge opening of compressor or to be connected in the expansion utensil by outlet, makes cooling agent disperse earlier the most discharges (1) (2) that afterwards remerge according to the passage of each flat tube; Be connected between the discharge (1) (2) with vertical mode, when the cooling agent that will flow into discharge (1) (2) disperses with the outside many groups flat tube (3) that carries out heat exchange; Be contacted with between many group flat tubes (3) and form preceding backing (11) and back backing (12) and can enlarge fin (10) with the air contact area; And protrude and to be formed at the side of flat tube (3), and be closely attached on preceding backing (11) and constitute with the back maintenance spacing protuberance (20) between the backing (12).
Discharge (1) (2) is respectively the entrance side discharge and the outlet side discharge of drum shape; In order on discharge, to be formed with the pipe installing port (not shown) that can weld at the middle separately two ends of inserting above-mentioned flat tube (3) of above-mentioned both sides discharge.
Flat tube (3) portion within it forms most condensing agent passages (3a) that row connect with four jiaos of section configurations, and it is fixing that its two ends are inserted in the pipe installing port (not shown) and the welding of discharge (1) (2).
The preceding backing (11) of fin (10) is that the thin aluminium alloy plate that will grow cubic type becomes waveform shape through many times nests with back backing (12), and is combined closely in the corresponding surface of above-mentioned flat tube (3) both sides in its point of inflection position.
For condensing condensed water in fin surface is flowed out easily, between preceding backing (11) and back backing (12), leave the proper spacing distance.
Moreover, the warpage spacing of preceding backing (11) is set to different with the warpage spacing of back backing (12), the i.e. spacing difference of two fin, making preceding backing (11) inter fin space this moment is good greater than back backing (12) inter fin space, relatively good to the frosting of delaying entrance side like this.
Moreover, in order to enlarge the contact area with air, be formed with most shutters (or crying long and narrow crack) (11a) (12a) at preceding backing (11) and back backing (12) horizontal direction for the condensed water discharge, shutter this moment (11a) (12a) the formed shutter spacing of front side fin (11) (or being long and narrow fracture interval) greater than in the back formed shutter spacing of backing (12) (or being long and narrow fracture interval) for good, relatively good in diabatic process, reducing heat transmission and raising drainage performance like this.
Moreover, be made as different with back backing (12) to the insertion depth of flat tube (3) preceding backing (11), promptly, fin degree of depth difference, be good with the degree of depth that the degree of depth of preceding backing (11) fin is set as less than back backing (12) fin this moment, can be reduced in the heat transfer performance of preceding backing (11) like this.
Please consult shown in Figure 5ly again, keep spacing protuberance (20) to protrude formation in the side of the flat tube (3) that contact with fin (10) one; Or (in the drawing prompting) also can make in addition, waits when assembling and fix in modes such as welding.
Moreover, keep spacing protuberance (20) can be formed at simultaneously on the both sides flat tube (3) that contacts with fin (10), or only be formed on the flat tube (3) of a certain side.Under above-mentioned both of these case, all make the height that keeps spacing protuberance (20) less than half of fin (10) banner, if possible with low for relatively good.
Please consult shown in Figure 6ly again, keep spacing protuberance (20), can protrude rectangularly, also can form the middle protuberance apperance that protrudes from vertical direction vertical along its length formation of flat tube (3).
To the part identical, put on same Reference numeral in the drawing with existing technology.
Aforesaid microchannel heat regenerator is used under the situation of evaporimeter, and its action effect is as follows.
That is, through compressor, freezing machine and expansion utensil the time, the cooling agent of gaseous state is with the entrance side discharge (1) of the form inflow evaporator of liquid gas phase mixing; This freezing mixture is released tail end at the head end of entrance side discharge (1) by pressure, and through being communicated in the passage of the middle flat tube (3) of two discharges; Cooling agent carries out heat exchange and vaporization through fin (10) and air in this process, thereby most of cooling agent is converted to gas and moves to the suction inlet that outlet side discharge (2) back sucks compressor.
Here, through too much organizing each fin (10) between the flat tube (3), the shutter (11a) of promptly preceding backing (11) and back backing (12) (12a) Shi Yuqi carries out heat exchange to air successively; In carrying out such heat exchanging process, because the temperature difference between fin surface temperature and the air themperature can be condensed the frosting or the globule on above-mentioned each fin (10); Frosting meeting is wherein melted when evaporimeter shuts down and is become condensed water, (12a) fall or under the horizontal direction slope current of fin (10) along shutter (11a) with the globule, gather at the pad of flat tube (3) then with fin (10), flow along the length direction of pad fin (10) again, at preceding backing (11) two ends or backing (12) two ends, back (having an end that keeps the spacing protuberance to keep an end of spacing protuberance) along it fall downwards and remove.
Along with condensed water or the globule along the shortening of fin displacement, not only can improve drainage effect, can also be when fin be assembled by with the corresponding end of preceding backing and back backing in alignment with above-mentioned maintenance spacing protuberance, improve the packaging efficiency of fin.
Moreover, because of the two sides of length direction of preceding backing and back backing all are contacted with flat tube, thus can keep and flat tube between heat transfer performance.
In addition, the air of backing importing side can form many frostings before the air of process heat regenerator particularly at first contacted; If the knuckle of backing before at this moment regulating, promptly, the inter fin space of backing is greater than the inter fin space of back backing before making, the surface area of backing is littler than the surface area of back backing before so just can making, therefore, same air can pass through preceding backing relatively fast, thus the frosting of backing before can delaying, and can reduce frosting degree.
Moreover if preceding backing shutter spacing is designed to greater than back backing shutter spacing, air not only can pass through preceding backing equally fast so, can also reduce the heat transfer performance of preceding backing, therefore can reduce the size of frosting; When defrosting operation in this case, can improve the drainage performance of the preceding backing of the more condensed waters of back backing generation relatively.
Moreover, if the preceding backing fin degree of depth is arranged to the degree of depth less than back backing fin, the heat transfer performance of backing before can reducing, thereby the frosting size of backing before reducing.
The technological innovation of the drainage arrangement of the heat regenerator of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1, a kind of drainage arrangement of heat regenerator is characterized in that by constituting with the lower part:
Integrally formed discharge;
Possess with condensing agent passage, at the flat tube more than at least two of described discharge outer peripheral face combination successively along discharge length direction and vertical connection in discharge;
Between two contiguous flat tubes, leave certain spacing, and a plurality of fin of installing at the outer surface that is contacted with flat tube; And
Be arranged in the spacing of being separated by between the fin, in order to be closely attached on the both sides fin, at least at certain side formed maintenance spacing protuberance of flat tube on one side.
2, the drainage arrangement of heat regenerator according to claim 1 is characterized in that described maintenance spacing protuberance is vertical formation of length direction along flat tube.
3, the drainage arrangement of heat regenerator according to claim 2 is characterized in that described maintenance spacing protuberance is to protrude the centre that is formed at each flat tube respectively with vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137783 CN1566890A (en) | 2003-06-23 | 2003-06-23 | Drainage arrangement for AC heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137783 CN1566890A (en) | 2003-06-23 | 2003-06-23 | Drainage arrangement for AC heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1566890A true CN1566890A (en) | 2005-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03137783 Pending CN1566890A (en) | 2003-06-23 | 2003-06-23 | Drainage arrangement for AC heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1566890A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012134A (en) * | 2010-10-19 | 2011-04-13 | 广东美的制冷设备有限公司 | Heat exchanger favorable for drainage |
| CN102150001A (en) * | 2008-09-08 | 2011-08-10 | 开利公司 | Microchannel heat exchanger module design to reduce water entrapment |
-
2003
- 2003-06-23 CN CN 03137783 patent/CN1566890A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150001A (en) * | 2008-09-08 | 2011-08-10 | 开利公司 | Microchannel heat exchanger module design to reduce water entrapment |
| CN102012134A (en) * | 2010-10-19 | 2011-04-13 | 广东美的制冷设备有限公司 | Heat exchanger favorable for drainage |
| CN102012134B (en) * | 2010-10-19 | 2013-07-31 | 广东美的制冷设备有限公司 | Heat exchanger favorable for drainage |
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