CN103134238B - Air conditioner parallel flow heat exchanger and machining process thereof - Google Patents
Air conditioner parallel flow heat exchanger and machining process thereof Download PDFInfo
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- CN103134238B CN103134238B CN201110380281.4A CN201110380281A CN103134238B CN 103134238 B CN103134238 B CN 103134238B CN 201110380281 A CN201110380281 A CN 201110380281A CN 103134238 B CN103134238 B CN 103134238B
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Abstract
The invention discloses a parallel flow heat exchanger which comprises a coolant inlet and outlet pipe, a flow collecting pipe and a casing pipe. The flow collecting pipe is provided with a coolant inlet and outlet pipe connector. The casing pipe is sleeved outside the coolant inlet and outlet pipe and matched with the coolant inlet and outlet pipe connector. The portion between the inner side wall of the casing pipe and the outer side wall of the coolant inlet and outlet pipe, the portion between the outer side walls of the coolant inlet and outlet pipe connector, and the portion between the outer side wall of the coolant inlet and outlet pipe and the inner side wall of the flow collecting pipe are fixed through brazes. According to the parallel flow heat exchanger, strength of the combined portion of the flow collecting pipe and the coolant inlet and outlet pipe is enhanced, the same materials are adopted to machine the portions among the casing pipe, the flow collecting pipe and the coolant inlet and outlet pipe, machining difficulty of the combined portion of the flow collecting pipe and the coolant inlet and outlet pipe is lowered, and corrosion resistance of the combined portion is improved. In addition, the invention further provides an air conditioner which applies the parallel flow heat exchanger and a machining process preparing the parallel flow heat exchanger.
Description
Technical field
The present invention relates to air-conditioning equipment field, more particularly, relate to a kind of parallel flow heat exchanger and processing technology thereof.In addition, the invention still further relates to a kind of air-conditioning comprising above-mentioned parallel flow heat exchanger.
Background technology
Parallel flow heat exchanger comprises header and refrigerant inlet/outlet pipe, at present, usually aluminum alloy materials is used to make the header of parallel flow heat exchanger in prior art, and due to the equipment that is connected with refrigerant inlet/outlet pipe copper material often, therefore in prior art, adopt following method to connect the header of aluminium material and the equipment of copper material by refrigerant inlet/outlet pipe:
As shown in Figure 1, refrigerant inlet/outlet pipe 01 is set to copper pipe, this situation adds man-hour, first copper pipe 01 is welded with stainless steel tube 02, then stainless steel tube 02 is combined closely by tube and aluminium flange 03, then again aluminium flange 03 is welded on header 04, the parallel flow heat exchanger after assembling is put into soldering oven and carries out soldering.Parallel flow heat exchanger due to this kind of structure relates to the processing of aluminium, stainless steel, copper three kinds of materials, thus causes process comparatively complicated, and difficulty of processing is larger; And copper welds with stainless the high silver solder usually needing 45% ~ 50%, compared with ordinary solder, high silver solder expensive, thus cause the cost of parallel flow heat exchanger higher.
As shown in Figure 2, refrigerant inlet/outlet pipe 12 can also be set to aluminum pipe in prior art, now, header 11 processes outwardly refrigerant inlet/outlet pipe interface 111, refrigerant inlet/outlet pipe 12 is inserted in refrigerant inlet/outlet pipe interface 111, then the run-in index heat exchanger assembled is put into soldering oven, inwall due to header 11 scribbles solder, therefore in soldering oven, header 11 and refrigerant inlet/outlet pipe 12 are welded together, but the contact area between header 11 and refrigerant inlet/outlet pipe 12 is less, so the intensity of weld is poor, sealing property is also poor, transport and longtime running vibrations in, easily cause the phenomenon that the fracture of solder bond place is revealed.
Therefore, the difficulty of processing that how reduction header is combined with refrigerant inlet/outlet pipe while the header ensureing parallel flow heat exchanger and refrigerant inlet/outlet pipe junction intensity is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of parallel flow heat exchanger, while ensureing header and refrigerant inlet/outlet pipe junction intensity, reduce the difficulty of processing that header is combined with refrigerant inlet/outlet pipe.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of parallel flow heat exchanger, comprise refrigerant inlet/outlet pipe and header, described header has refrigerant inlet/outlet pipe interface, and described refrigerant inlet/outlet pipe inserts in described refrigerant inlet/outlet pipe interface, and the outer wall of described refrigerant inlet/outlet pipe and the inwall soldering of described header are fixed; Also comprise sleeve pipe, described casing pipe sleeve is loaded on described refrigerant inlet/outlet pipe, and the equal soldering of outer wall of the outer wall of the inwall of described sleeve pipe and described refrigerant inlet/outlet pipe and header is fixed; The diameter of described refrigerant inlet/outlet pipe interface tube wall reduces from inside to outside successively, and described refrigerant inlet/outlet pipe is corresponding with described refrigerant inlet/outlet pipe Interface Shape with described refrigerant inlet/outlet pipe Interference fit place.
Preferably, described refrigerant inlet/outlet pipe has outwardly positioning convex, and described positioning convex contacts with the outer face of described sleeve pipe.
Preferably, the shape of described positioning convex is ring-type.
Preferably, weld-ring is provided with between described sleeve pipe and described refrigerant inlet/outlet pipe and refrigerant inlet/outlet pipe interface.
Preferably, along the direction of axis line of described refrigerant inlet/outlet pipe interface, the diameter of described sleeve pipe increases suddenly, forms step; Described weld-ring is arranged between the tube wall outer end of described refrigerant inlet/outlet pipe interface and described step and described refrigerant inlet/outlet pipe.
On the basis of technique scheme, present invention also offers a kind of air-conditioning, this air-conditioning comprises the parallel flow heat exchanger mentioned in technique scheme.
In addition, present invention also offers a kind of processing technology preparing above-mentioned parallel flow heat exchanger, comprise the steps:
Assembling I, is located at described casing pipe sleeve on described refrigerant inlet/outlet pipe;
Assembling II, inserts the refrigerant inlet/outlet pipe interface that described header is arranged by described refrigerant inlet/outlet pipe;
Enlarging, carries out enlarging to described refrigerant inlet/outlet pipe and fixes inside described header;
Soldering, heats the refrigerant inlet/outlet pipe of parallel flow heat exchanger and the cooperation place of header in soldering oven, and sleeve pipe, refrigerant inlet/outlet pipe and header are brazed together.
Preferably, described refrigerant inlet/outlet pipe is provided with positioning convex, in step assembling I, be located at by described casing pipe sleeve on described refrigerant inlet/outlet pipe, described positioning convex is conflicted with described sleeve pipe and is coordinated.
Preferably, described sleeve pipe forms step, in step assembling I, described casing pipe sleeve is located at after on described refrigerant inlet/outlet pipe, more described weld-ring is set on described refrigerant inlet/outlet pipe, then described refrigerant inlet/outlet pipe is inserted described header, inside described header, enlarging is carried out to described refrigerant inlet/outlet pipe and fix the thawing of described weld-ring, fill up the gap between described sleeve pipe, refrigerant inlet/outlet pipe and header, described sleeve pipe, refrigerant inlet/outlet pipe and header be brazed together.
Relative above-mentioned background technology, parallel flow heat exchanger provided by the invention, comprise refrigerant inlet/outlet pipe and header, described header has refrigerant inlet/outlet pipe interface, described refrigerant inlet/outlet pipe inserts in described refrigerant inlet/outlet pipe interface, and the outer wall of described refrigerant inlet/outlet pipe and the inwall soldering of described header are fixed; Also comprise sleeve pipe, described casing pipe sleeve is loaded on described refrigerant inlet/outlet pipe, and the equal soldering of outer wall of the outer wall of the inwall of described sleeve pipe and described refrigerant inlet/outlet pipe and header is fixed.
Equiulbrium flow interchanger provided by the invention, its refrigerant inlet/outlet pipe inserts the refrigerant inlet/outlet pipe interface that header is arranged, that is, refrigerant inlet/outlet pipe is positioned at the part of header inside, and its lateral wall and header arrange the madial wall soldering secure fit of refrigerant inlet/outlet pipe interface section; Simultaneously, the sleeve pipe that refrigerant inlet/outlet pipe is arranged, the madial wall of its one end and the lateral wall soldering secure fit of refrigerant inlet/outlet pipe, the madial wall of the other end and the lateral wall soldering secure fit of refrigerant inlet/outlet pipe interface, namely, realize the secure fit between refrigerant inlet/outlet pipe and refrigerant inlet/outlet pipe interface by the lateral wall of refrigerant inlet/outlet pipe and sleeve pipe between refrigerant inlet/outlet pipe and refrigerant inlet/outlet pipe interface, and then realize refrigerant inlet/outlet pipe and being fixedly connected with between header.
Concrete, in assembling process between refrigerant inlet/outlet pipe and refrigerant inlet/outlet pipe interface, first refrigerant inlet/outlet pipe is inserted in sleeve pipe, and then refrigerant inlet/outlet pipe is inserted in the refrigerant inlet/outlet pipe interface of header, and make sleeve pipe surround a part of header, then enlarging is carried out to the refrigerant inlet/outlet pipe in header, make it to combine closely with header, like this parallel flow heat exchanger combined is put into soldering oven, the outer wall of the inwall of header and refrigerant inlet/outlet pipe is brazed together, the outer wall of the inwall of sleeve pipe and the outer wall of header and refrigerant inlet/outlet pipe is brazed together.
Because the junction of parallel flow heat exchanger provided by the present invention is except having header and refrigerant inlet/outlet pipe, sleeve pipe is also had header and refrigerant inlet/outlet pipe to be fixed together, and the pipe thickness of refrigerant inlet/outlet pipe interface is even, relative to background technology, enhance the intensity of the junction of parallel flow heat exchanger; And sleeve pipe, same material between header and refrigerant inlet/outlet pipe, all can be adopted to process, therefore relative to background technology three kinds of materials, also reduce the difficulty of processing that header is combined with refrigerant inlet/outlet pipe, and improve the corrosion resistance of junction.
In addition, air-conditioning provided by the invention, employs the parallel flow heat exchanger mentioned in technique scheme.Because above-mentioned parallel flow heat exchanger also reduces difficulty of processing while proof strength, reduce cost, thus make the cost of the air-conditioning comprising above-mentioned parallel flow heat exchanger lower.
Meanwhile, the processing technology preparing above-mentioned parallel flow heat exchanger is as follows: comprise step:
Assembling I, is located on refrigerant inlet/outlet pipe by casing pipe sleeve;
Assembling II, then inserts the refrigerant inlet/outlet pipe interface of header by inlet/outlet pipe;
Enlarging, carries out enlarging to refrigerant inlet/outlet pipe and fixes inside header;
Soldering, makes sleeve pipe, inlet/outlet pipe and header be brazed together in soldering oven.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of structural representation of parallel flow heat exchanger of Fig. 1 for providing in prior art;
The structural representation of another kind of parallel flow heat exchanger of Fig. 2 for providing in prior art;
The structural representation of the parallel flow heat exchanger that Fig. 3 provides for the embodiment of the present invention;
The sectional structure schematic diagram of the parallel flow heat exchanger that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the parallel flow heat exchanger header that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the parallel flow heat exchanger sleeve pipe that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the parallel flow heat exchanger refrigerant inlet/outlet pipe that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the concurrent flow caloric value parallel operation weld-ring that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is the processing process figure preparing parallel flow heat exchanger provided by the invention.
Detailed description of the invention
The object of this invention is to provide a kind of parallel flow heat exchanger, while ensureing header and refrigerant inlet/outlet pipe junction intensity, reduce the difficulty of processing that header is combined with refrigerant inlet/outlet pipe.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to protection scope of the present invention.
As shown in Fig. 3, Fig. 4 and Fig. 5, the structural representation of the parallel flow heat exchanger that Fig. 3 provides for the embodiment of the present invention; The sectional structure schematic diagram of the parallel flow heat exchanger that Fig. 4 provides for the embodiment of the present invention; The structural representation of the parallel flow heat exchanger header that Fig. 5 provides for the embodiment of the present invention.
Parallel flow heat exchanger provided by the present invention comprises refrigerant inlet/outlet pipe 22, header 21 and sleeve pipe 23; Header 21 has refrigerant inlet/outlet pipe interface 211 (as shown in Figure 5), and refrigerant inlet/outlet pipe 22 inserts in refrigerant inlet/outlet pipe interface 211, and the inwall soldering of the outer wall of refrigerant inlet/outlet pipe 22 and header 21 is fixed; Sleeve pipe 23 is set in refrigerant inlet/outlet pipe 22, and the equal soldering of the outer wall of the outer wall of the inwall of sleeve pipe 23 and refrigerant inlet/outlet pipe 22 and header 21 is fixed.
Equiulbrium flow interchanger provided by the invention, its refrigerant inlet/outlet pipe 22 inserts the refrigerant inlet/outlet pipe interface 211 that header 21 is arranged, that is, refrigerant inlet/outlet pipe 22 is positioned at the part of header 21 inside, and its lateral wall and header 21 arrange the madial wall soldering secure fit of refrigerant inlet/outlet pipe interface 211 part; Simultaneously, the sleeve pipe 23 that refrigerant inlet/outlet pipe 22 is arranged, the madial wall of its one end and the lateral wall soldering secure fit of refrigerant inlet/outlet pipe 22, the madial wall of the other end and the lateral wall soldering secure fit of refrigerant inlet/outlet pipe interface 211, namely, realize the secure fit between refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211 by the lateral wall of refrigerant inlet/outlet pipe 22 and sleeve pipe 23 between refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211, and then realize being fixedly connected with between refrigerant inlet/outlet pipe 22 with header 21.
Concrete, in assembling process between refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211, first refrigerant inlet/outlet pipe 22 is inserted in sleeve pipe 23, and then refrigerant inlet/outlet pipe 22 is inserted in the refrigerant inlet/outlet pipe interface 211 of header 21, and make sleeve pipe 23 surround a part of header 21, then enlarging is carried out to the refrigerant inlet/outlet pipe 22 in header 21, make it to combine closely with header 21, like this parallel flow heat exchanger combined is put into soldering oven, the outer wall of the inwall of header 21 and refrigerant inlet/outlet pipe 22 is brazed together, simultaneously, the inwall of sleeve pipe 23 and the outer wall of header 21 and the outer wall of refrigerant inlet/outlet pipe 22 are brazed together.
Because the junction of parallel flow heat exchanger provided by the present invention is except having header 21 and refrigerant inlet/outlet pipe 22, sleeve pipe 23 is also had header 21 and refrigerant inlet/outlet pipe 22 to be fixed together, and the pipe thickness at refrigerant inlet/outlet pipe interface 211 place is even, relative to background technology, enhance the intensity of the junction of parallel flow heat exchanger; And sleeve pipe 23, same material between header 21 and refrigerant inlet/outlet pipe 22, all can be adopted to process, therefore relative to background technology three kinds of materials, also reduce the difficulty of processing that header 21 is combined with refrigerant inlet/outlet pipe 22, and improve the corrosion resistance of junction.
Concrete, in order to ensure that the parallel hot-fluid interchanger mentioned in technique scheme is in brazing process, the stability of relative position between sleeve pipe 23 and refrigerant inlet/outlet pipe 22, refrigerant inlet/outlet pipe 22 is also provided with outwardly positioning convex 221, and positioning convex 221 contacts with the outer face of sleeve pipe 23.Namely, positioning convex 221 coordinates the location that can realize between sleeve pipe 23 and refrigerant inlet/outlet pipe 22 with header 21, prevent sleeve pipe 23 from continuing to slide along the direction of axis line of refrigerant inlet/outlet pipe 22, thus the madial wall of sleeve pipe 23 is tightly pressed on the lateral wall of header 21.
Certainly, the shape of positioning convex 221 can have multiple choices, can be some independent bulge-structures, and also can be annular protrusion structure, in order to improve soldering effect, positioning convex be preferably circulus.
Further, in order to strengthen the stability that refrigerant inlet/outlet pipe 22 coordinates between the lateral wall and the madial wall of header 21 of header 21 interior section, the diameter of refrigerant inlet/outlet pipe interface 211 tube wall can be set to reduce successively from inside to outside, and refrigerant inlet/outlet pipe 22 is corresponding with the shape of refrigerant inlet/outlet pipe interface 211 with the shape of refrigerant inlet/outlet pipe interface 211 cooperation place.That is, the shape of refrigerant inlet/outlet pipe interface 211 is horn mouth shape from outside to inside, as shown in Figure 4; And the shape of refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211 mating part also enlarging be the shape corresponded, the difficulty of refrigerant inlet/outlet pipe 22 expanding can be reduced like this; Meanwhile, make also there is locating effect between refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211, add the stability that refrigerant inlet/outlet pipe 22 coordinates with header 21.
Accordingly, weld-ring 24 can also be provided with between sleeve pipe 23 and refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 211, as shown in Figure 4.Like this, in brazing process, three fixes from the inside analyzed between sleeve pipe 23 and refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 221 by the welding fluid that weld-ring 24 dissolves rear formation, is conducive to the uniformity that weld-ring 24 dissolves the distribution of rear welding fluid, and then improves the intensity of soldering.
For the ease of the setting of weld-ring 24, preferably, along the direction of axis line of refrigerant inlet/outlet pipe interface 211, the diameter of sleeve pipe 23 increases suddenly, forms step 231; Described weld-ring 24 is arranged between the tube wall outer end of described refrigerant inlet/outlet pipe interface 211 and described step 231 and described refrigerant inlet/outlet pipe 22.
Present invention also offers a kind of air-conditioning, this air-conditioning comprises the parallel flow heat exchanger provided in technique scheme.Because above-mentioned parallel flow heat exchanger also reduces difficulty of processing while proof strength, reduce cost, thus make the cost of the air-conditioning comprising above-mentioned parallel flow heat exchanger lower.
In addition, present invention also offers a kind of processing technology preparing the parallel flow heat exchanger mentioned in technique scheme, as shown in Figure 9, it comprises the steps:
Step 301: assembling I:
Sleeve pipe 23 is set on refrigerant inlet/outlet pipe 22; First sleeve pipe 23 is set in one end that refrigerant inlet/outlet pipe 22 coordinates with header 21, is convenient to the setting of sleeve pipe 23.
Step 302: assembling II:
Refrigerant inlet/outlet pipe 22 is inserted refrigerant inlet/outlet pipe interface 211 place that header 21 is arranged.
Step 303: enlarging:
Inside header 21, enlarging is carried out to the part that refrigerant inlet/outlet pipe 22 is positioned at header 21 inside, relative fixing with what realize between refrigerant inlet/outlet pipe 22 with header 21.
Step 304: soldering:
In soldering oven, the refrigerant inlet/outlet pipe 22 of parallel flow heat exchanger and the cooperation place of header 21 are heated, sleeve pipe 23, refrigerant inlet/outlet pipe 22 and header 21 are brazed together.
In order to implementation step assembling I and step assemble II time, the stability coordinated between sleeve pipe 23 with refrigerant inlet/outlet pipe 22, refrigerant inlet/outlet pipe 22 is provided with positioning convex 221, in step assembling I, be set in by sleeve pipe 23 on refrigerant inlet/outlet pipe 22, conflicting between positioning convex 221 with sleeve pipe 23 coordinates.Positioning convex 221 coordinates the location that can realize between sleeve pipe 23 and refrigerant inlet/outlet pipe 22 with header 21, prevents sleeve pipe 23 from continuing to slide along the direction of axis line of refrigerant inlet/outlet pipe 22, thus is tightly pressed in by the madial wall of sleeve pipe 23 on the lateral wall of header 21.
Certainly, sleeve pipe 23 can also form step 231, so that arrange weld-ring 24 between sleeve pipe 23 and refrigerant inlet/outlet pipe 22 and refrigerant inlet/outlet pipe interface 221; In step assembling I, sleeve pipe 23 is set in after on refrigerant inlet/outlet pipe 22, again weld-ring 24 is set on refrigerant inlet/outlet pipe 22, then refrigerant inlet/outlet pipe 22 is inserted header 21, inside header 21, carry out enlarging to refrigerant inlet/outlet pipe 22 fix, weld-ring 24 is melted, and fills up the gap between described sleeve pipe 23, refrigerant inlet/outlet pipe 22 and header 21, and sleeve pipe 23, refrigerant inlet/outlet pipe 22 and header 21 are brazed together.
Above air-conditioning provided by the present invention and parallel flow heat exchanger and processing technology thereof are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a parallel flow heat exchanger, comprise refrigerant inlet/outlet pipe (22) and header (21), described header (21) has refrigerant inlet/outlet pipe interface (211), described refrigerant inlet/outlet pipe (22) is inserted in described refrigerant inlet/outlet pipe interface (211), and the inwall soldering of the outer wall of described refrigerant inlet/outlet pipe (22) and described header (21) is fixed; It is characterized in that, also comprise sleeve pipe (23), described sleeve pipe (23) is set in described refrigerant inlet/outlet pipe (22), and the equal soldering of outer wall of the outer wall of the inwall of described sleeve pipe (23) and described refrigerant inlet/outlet pipe (22) and header (21) is fixed; The diameter of described refrigerant inlet/outlet pipe interface (211) tube wall reduces from inside to outside successively, and described refrigerant inlet/outlet pipe (22) is corresponding with described refrigerant inlet/outlet pipe interface (211) shape with described refrigerant inlet/outlet pipe interface (211) cooperation place.
2. parallel flow heat exchanger according to claim 1, it is characterized in that, described refrigerant inlet/outlet pipe (22) has outwardly positioning convex (221), and described positioning convex (221) contacts with the outer face of described sleeve pipe (23).
3. parallel flow heat exchanger according to claim 2, is characterized in that, the shape of described positioning convex (221) is ring-type.
4. the parallel flow heat exchanger according to any one of claims 1 to 3, it is characterized in that, between described sleeve pipe (23) and described refrigerant inlet/outlet pipe (22) and refrigerant inlet/outlet pipe interface (211), be provided with weld-ring (24).
5. parallel flow heat exchanger according to claim 4, is characterized in that, along the direction of axis line of described refrigerant inlet/outlet pipe interface (211), the diameter of described sleeve pipe (23) increases suddenly, forms step (231); Described weld-ring (24) is arranged between the tube wall outer end of described refrigerant inlet/outlet pipe interface (211) and described step (231) and described refrigerant inlet/outlet pipe (22).
6. an air-conditioning, is characterized in that, comprises the parallel flow heat exchanger described in any one of claim 1 to 5.
7. prepare a processing technology for the parallel flow heat exchanger described in any one of claim 1-5, it is characterized in that, it comprises the steps:
Assembling I, is set in described sleeve pipe (23) on described refrigerant inlet/outlet pipe (22);
Assembling II, then inserts refrigerant inlet/outlet pipe interface (211) place that described header (21) is arranged by described refrigerant inlet/outlet pipe (22);
Enlarging, carries out enlarging from described header (21) inner side to described refrigerant inlet/outlet pipe (22) and fixes;
Soldering, in soldering oven, the refrigerant inlet/outlet pipe (22) of parallel flow heat exchanger and the cooperation place of header (21) are heated, sleeve pipe (23), refrigerant inlet/outlet pipe (22) and header (21) are brazed together.
8. the processing technology preparing parallel flow heat exchanger according to claim 7, it is characterized in that, described refrigerant inlet/outlet pipe (22) is provided with positioning convex (221), in step assembling I, be set in by described sleeve pipe (23) on described refrigerant inlet/outlet pipe (22), described positioning convex (221) is conflicted with described sleeve pipe (23) and is coordinated.
9. the processing technology preparing parallel flow heat exchanger according to claim 7, it is characterized in that, described sleeve pipe forms step (231), in step assembling I, described sleeve pipe (23) is set in after on described refrigerant inlet/outlet pipe (22), again described weld-ring (24) is set on described refrigerant inlet/outlet pipe (22), then described refrigerant inlet/outlet pipe (22) is inserted described header (21), carry out enlarging from described header (21) inner side to described refrigerant inlet/outlet pipe (22) to fix, described weld-ring (24) is melted, fill up described sleeve pipe (23), gap between refrigerant inlet/outlet pipe (22) and header (21), make described sleeve pipe (23), refrigerant inlet/outlet pipe (22) and header (21) are brazed together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110380281.4A CN103134238B (en) | 2011-11-25 | 2011-11-25 | Air conditioner parallel flow heat exchanger and machining process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110380281.4A CN103134238B (en) | 2011-11-25 | 2011-11-25 | Air conditioner parallel flow heat exchanger and machining process thereof |
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| CN103134238A CN103134238A (en) | 2013-06-05 |
| CN103134238B true CN103134238B (en) | 2015-05-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986270Y (en) * | 2006-12-08 | 2007-12-05 | 苏州昆拓冷机有限公司 | Machine cabinet air conditioner using laminar current type condensator |
| CN101871735A (en) * | 2010-06-12 | 2010-10-27 | 艾欧史密斯(中国)热水器有限公司 | Microchannel heat exchanger suitable for heat pump water heater and manufacturing method thereof |
| CN102042780A (en) * | 2010-12-06 | 2011-05-04 | Tcl空调器(中山)有限公司 | Collecting pipe and processing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7370490B2 (en) * | 2005-06-30 | 2008-05-13 | Zhiming Li | Air-conditioning system with full heat recovery |
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- 2011-11-25 CN CN201110380281.4A patent/CN103134238B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986270Y (en) * | 2006-12-08 | 2007-12-05 | 苏州昆拓冷机有限公司 | Machine cabinet air conditioner using laminar current type condensator |
| CN101871735A (en) * | 2010-06-12 | 2010-10-27 | 艾欧史密斯(中国)热水器有限公司 | Microchannel heat exchanger suitable for heat pump water heater and manufacturing method thereof |
| CN102042780A (en) * | 2010-12-06 | 2011-05-04 | Tcl空调器(中山)有限公司 | Collecting pipe and processing method thereof |
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| CN103134238A (en) | 2013-06-05 |
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