CN105057901A - Machining method of microchannel parallel flow heat exchanger - Google Patents
Machining method of microchannel parallel flow heat exchanger Download PDFInfo
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- CN105057901A CN105057901A CN201510465361.8A CN201510465361A CN105057901A CN 105057901 A CN105057901 A CN 105057901A CN 201510465361 A CN201510465361 A CN 201510465361A CN 105057901 A CN105057901 A CN 105057901A
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- heat exchanger
- flat tube
- radiating fin
- gag lever
- lever post
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of heat exchanger equipment, in particular, relates to a machining method of a microchannel parallel flow heat exchanger, and solves such problems as easy deformation of traditional heat exchangers in welding. The method comprises the steps of: (A) assembly of the heat exchanger; (B) positioning of the heat exchanger; and (C) welding of the heat exchanger. The machining method of the microchannel parallel flow heat exchanger has the following advantages: a limiting rod and a chassis can prevent the expansion of the heat exchanger body in a NB furnace in welding to prevent the deformation; the heat exchanger is convenient to be disassembled, and can be recycled, so that the cost is saved; the bottom of the produced heat exchanger is hollowed to achieve the advantage of corrosion resistance; and a radiating fin and a flat tube are firmly inserted, so that the release is not liable to generate, and the installation stability of the radiating fin is enhanced.
Description
Technical field
The invention belongs to heat exchange equipment technical field, especially relate to a kind of processing method of micro-channel parallel flow heat exchanger.
Background technology
Heat exchanger is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger.Common heat exchanger has variform, and wherein parallel-flow heat exchanger is because of its compact conformation, and the little use of volume is the most extensive.Common parallel-flow heat exchanger mainly comprises and being parallel to each other for a pair and the header be separated from each other, some two ends are respectively with the inner space of two headers and the flat tube be parallel to each other, be arranged on the fin between adjacent flat tube, and two side plates to be fixedly connected with outside flat tube by fin, header is provided with some holes for connecting flat tube, and after assembling, whole heat exchanger is flat platy structure.During work, cold-producing medium flows along design direction between header along flat tube, while flowing, carries out heat exchange with the air of blowing over fin.Processing for existing parallel-flow heat exchanger is comparatively inconvenient, industrialization cannot be realized produce, welding quality cannot ensure unanimously, and existing parallel-flow heat exchanger is generally be positioned on bracket by core body carrying out NB welding procedure, drove stove by equipment mesh bag again, because of heat exchanger principle by rising-heat contracting-cold in high temperature NB stove, heat exchanger is heated and starts to expand, the shaping rear metaboly that all there will be in various degree of Welding of Heat-exchanger, causes outward appearance defective.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of full aluminum tube fin type parallel flow heat exchanger and manufacture method [application number: 201110143293.5] thereof, comprise header, fin and refrigerant pipe, header, fin or refrigerant pipe are at least clad aluminum at the position contacted with each other, and the melting temperature on clad aluminum top layer is lower than the melting temperature of basic unit.Refrigerant pipe is with interior wing, fin with through hole flanging is sleeved on refrigerant pipe, refrigerant pipe two ends are inserted in the flanging bore of header, the inner space of refrigerant pipe communicates with the inner space of header, after three's assembling, entirety is heated between clad aluminum top layer melting temperature and basic unit's melting temperature, and top layer is melted and played cored solder effect, is welded into as a whole by full aluminum tube fin type parallel flow heat exchanger and annex thereof.
Such scheme cannot ensure the conforming problem of welding when to some extent solving existing heat exchanger processing, but the problem of dilatancy when the program still cannot ensure Welding of Heat-exchanger, makes the heat exchanger end product quality after welding to ensure like this.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of processing method simple, the processing method of the micro-channel parallel flow heat exchanger be out of shape during Welding of Heat-exchanger can be prevented.
For achieving the above object, present invention employs following technical proposal: the processing method of this micro-channel parallel flow heat exchanger, is characterized in that, this method comprises the steps:
A, assembling heat exchanger: arrange two and be parallel to each other and the header vertically arranged, some being parallel to each other and the flat tube of horizontally set is installed between two headers, each flat tube along header axially spaced-apart distribution and the two ends of flat tube connect with header respectively, then some radiating fins contacted with flat tube are installed between header, thus are assembled into heat exchanger body;
B, location heat exchanger: the heat exchanger body assembled is placed on horizontally disposed underframe, heat exchanger body is placed at least one and is axially parallel to underframe and the gag lever post contacted with the flat tube of heat exchanger body, heat exchanger body to be fixedly clamped between underframe and gag lever post by being arranged on removable location structure between underframe and gag lever post thus preventing heat exchanger body radial displacement;
C, welding heat exchanger: delivered in NB stove by the heat exchanger body of having good positioning and weld, after having welded, remove removable location structure and also take out the heat exchanger body welded, thus obtained finished product heat exchanger.During use, heat exchanger body is placed on underframe, driven by equipment mesh bag, after spray, by manually placing a gag lever post in heat exchanger body front, by removable location structure, gag lever post is connected with underframe, there is deformation when can prevent heat exchanger body from welding in NB stove like this, and gag lever post and underframe can adopt square steel to make, and can reuse like this, cost-saving.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described flat tube is horizontally disposed with and/or favours horizontal plane and arranges, and the lower end of described header is provided with and flat tube and radiating fin can be made operationally to avoid the aerial construction contacted with hydrops; Described aerial construction comprises two built on stilts bodys extended to form by header respectively downwards, and forms overhead space between two built on stilts bodys, and described built on stilts body and header are connected as a single entity or removably connect.Use this structure that the bottom of heat exchanger can be made to make somebody a mere figurehead, prevent flat tube and radiating fin and hydrops from contacting with each other, avoid the getting rusty of flat tube and radiating fin, corrode, and the condensate liquid on flat tube can be made to discharge sooner when flat tube favours when horizontal plane is arranged, be not easily gathered on flat tube and radiating fin.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described radiating fin is bent into continuous triangle waveform by metal sheet, described radiating fin is horizontally installed between two adjacent flat tubes and the crest of radiating fin and trough contact with two flat tubes respectively, the width of described radiating fin is greater than the width of flat tube, and at least side of radiating fin exceeds the sidepiece of flat tube.Namely each radiating fin is clipped between adjacent two flat tubes, and when flat tube is horizontally disposed with, radiating fin is horizontally disposed with; When flat tube favour horizontal plane arrange time, radiating fin and flat tube are obliquely installed in the same way, such condensed water that can make not easily is gathered on flat tube and radiating fin, thus improve the heat exchange efficiency of this heat exchanger, and due to radiating fin adopt said structure make exceed flat tube outside radiating fin, can increase heat exchange area like this, thus make up heat exchanger lower end the problem that aerial construction causes heat exchange area deficiency is set.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described radiating fin is made up of metal sheet, and described radiating fin is vertically disposed adjacent in parallel to each other and each radiating fin intersects with each flat tube respectively.Preferably, flat tube is here horizontally installed between two headers, and radiating fin is longitudinally arranged and mutually arranged in a crossed manner with flat tube.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described radiating fin sidepiece has the horizontal slot arranged with each flat tube one_to_one corresponding, described flat tube is horizontally disposed with and inserts in horizontal slot, and the degree of depth of described horizontal slot is greater than the width of flat tube; Or, described radiating fin sidepiece has the inclination slot arranged with each flat tube one_to_one corresponding, described flat tube is obliquely installed and inserts in inclination slot, the degree of depth of described inclination slot is greater than the width of flat tube, and described inclination slot is tilted to lower setting and the notch of inclination slot is positioned at the lower end of inclination slot.When radiating fin sidepiece has horizontal slot, here flat tube is arranged in parallel, radiating fin mutually intersects grafting by horizontal slot and flat tube and is connected, and make radiating fin sidepiece to exceed flat tube because the degree of depth of horizontal slot is greater than flat tube width, not only increase heat exchange area like this, condensate liquid also can be made to flow out along radiating fin simultaneously, when radiating fin sidepiece has inclination slot, here flat tube favours horizontal plane and arranges, such condensate liquid that can make can be discharged sooner, not easily be gathered on flat tube, and radiating fin intersects grafting mutually by inclination slot and flat tube is connected, and make radiating fin sidepiece to exceed flat tube because the degree of depth of inclination slot is greater than flat tube width, not only increase heat exchange area like this, also condensate liquid can be made to flow out along radiating fin simultaneously, and be inserted on flat tube owing to can be tilted to down when inclination slot is tilted to down and makes radiating fin and flat tube mutual grafting, improve the fastness that radiating fin is installed, prevent radiating fin from departing from flat tube, and preferably, radiating fin comprises the fin side strip in strip, described fin side strip side be provided with some be tilted to respectively under heat radiation slanted bar, and described heat radiation slanted bar is along the axial setting that distributes successively of fin side strip, above-mentioned inclination slot is formed between adjacent two heat radiation slanted bars, described both sides, heat radiation slanted bar end are respectively equipped with guiding surface, and the guiding surface on adjacent two heat radiation slanted bars forms expansion mouth at the opening part of inclination slot, can be convenient to inclination slot and the mutual grafting of flat tube like this, and form angle between described inclination slot and the center line of radiating fin, and the size of described angle is 110 °-130 °, described fin side strip is axially arranged with some the first punching hole being uniformly distributed setting successively, described heat radiation slanted bar end is provided with the second punching hole, the middle part of described heat radiation slanted bar is provided with along the axially extended bar-shaped trough of heat radiation slanted bar, and described bar-shaped trough both sides are respectively equipped with some bar shaped inclined holes.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, be provided with at least one horizontally set between described built on stilts body and be positioned at the deflector of overhead space, the upper end of described deflector be positioned at a flat tube of bottom side and when flat tube for be obliquely installed flat tube time described in deflector be positioned at the downside of flat tube.Preferably, here deflector is provided with some guiding gutters vertically arranged, when flat tube when is here horizontally disposed with, the quantity of deflector is two and is separately positioned on the external side of cross-over pipe, contact respectively with flat tube both sides respectively on the upside of deflector, such condensate liquid that can make is discharged under two deflector laterals, when flat tube favour horizontal plane arrange time, the quantity of deflector is one and is arranged on the side being positioned at the downward-sloping direction of flat tube, makes condensate liquid can flow out outside deflector like this; Deflector also can adopt following structure simultaneously: described deflector is hollow structure, and deflector two ends are plugged on built on stilts body respectively, and described deflector inside is connected with built on stilts tubular body respectively, can play to condensate liquid the heat exchange area that guide functions can improve again heat exchanger like this.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described underframe comprises in frame-shaped and the underframe leant with flat tube, the width size of described underframe is less than the spacing size between two headers, some bottom bars paralleled with gag lever post are respectively set bottom described underframe, and wherein at least one foundation bar is arranged with gag lever post is mutually corresponding.By the flat tube of heat exchanger body is placed on underframe, and wherein a foundation bar be connected with gag lever post the flat tube that realizes heat exchanger body and radiating fin radial direction spacing, and cause compressing in order to spacing pole pair when preventing from locating exceeds outside the radiating fin of flat tube, prevent from being out of shape outside radiating fin, here the lug that some axis set gradually is provided with on the downside of gag lever post, each lug leans with flat tube respectively, and between adjacent two lugs, form the cell body of radiating fin insertion altogether.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described removable location structure comprises the hook support body that at least two are separately positioned on gag lever post two ends, described hook support body is bending, and described gag lever post one end hooks inside support body one end against being arranged on, and leans inside the described hook support body other end with bottom bar.In step B and C, the installation of removable location structure all can utilize the deformation of self to realize hooking installation and the releasing of support body by pressing gag lever post with removing, and has easy accessibility, can reuse, cost-saving advantage.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, described hook support body comprises vertical section, described vertical section one end is outwards bent to form perpendicular to vertical section and the first bending segment leant with gag lever post, and the described vertical section other end is provided with towards the first bending segment side to tilt upward and extends and the second bending segment leant with bottom bar.Preferably, hook support body here adopts stainless steel tube bending to form.
In the processing method of above-mentioned micro-channel parallel flow heat exchanger, the first described bending segment is provided with the position limiting structure that can prevent gag lever post from departing from the first bending segment; Described position limiting structure comprises the limiting section bent by the first bending segment end downwards, and described limiting section is in the nut type structure arranged in parallel with vertical section.Prevent gag lever post from departing from by limiting section and hook support body.
Compared with prior art, the advantage of the processing method of this micro-channel parallel flow heat exchanger is: expand in NB stove to prevent heat exchanger body by gag lever post and underframe during welding, thus avoid distortion, easy accessibility, can reuse, save cost, and obtained exchanger base is maked somebody a mere figurehead, and has etch-proof advantage, radiating fin and flat tube firm plug, not easily occur coming off, enhance the installation stability of radiating fin.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one provided by the invention.
Fig. 2 is the structural representation hooking support body in embodiment one provided by the invention.
Fig. 3 is the structural representation hooking another visual angle of support body in embodiment one provided by the invention.
Fig. 4 is the structural representation of the gag lever post of embodiment one provided by the invention.
Fig. 5 is the structural representation of heat exchanger body in embodiment one provided by the invention.
Fig. 6 is A place enlarged drawing in Fig. 5.
Fig. 7 is the partial structurtes schematic diagram in embodiment two provided by the invention.
Fig. 8 is heat exchanger body structural representation in embodiment three provided by the invention.
Fig. 9 is B place enlarged drawing in Fig. 8.
Figure 10 is stereogram when heat exchanger body does not arrange drip tray in embodiment three provided by the invention.
Figure 11 is C place enlarged drawing in Figure 10.
Figure 12 be when in embodiment three provided by the invention, heat exchanger body does not arrange drip tray side view.
Figure 13 is the structural representation of radiating fin in embodiment three provided by the invention.
Figure 14 is D place enlarged drawing in Figure 13.
In figure, header 1, flat tube 2, radiating fin 3, horizontal slot 31, inclination slot 32, notch 321, fin side strip 33, heat radiation slanted bar 34, guiding surface 341, expansion mouth 342, first punching hole 35, second punching hole 36, bar-shaped trough 37, bar shaped inclined hole 38, aerial construction 4, built on stilts body 41, overhead space 42, deflector 5, guiding gutter 6, underframe 7, underframe 71, bottom bar 72, gag lever post 8, lug 81, cell body 82, removable location structure 9, hook support body 91, vertical section 911, first bending segment 912, second bending segment 913, limiting section 914, angle α.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Embodiment one
As shown in Figure 1, the processing method of this micro-channel parallel flow heat exchanger, comprise the steps: A, assembling heat exchanger: arrange two and be parallel to each other and the header 1 vertically arranged, some being parallel to each other and the flat tube 2 of horizontally set is installed between two headers 1, each flat tube 2 along header 1 axially spaced-apart distribution and the two ends of flat tube 2 connect with header 1 respectively, then some radiating fins 3 contacted with flat tube 2 are installed between header 1, thus are assembled into heat exchanger body, B, location heat exchanger: the heat exchanger body assembled is placed on horizontally disposed underframe 7, driven by equipment mesh bag, on heat exchanger body, place at least one be axially parallel to underframe 7 and the gag lever post 8 contacted with the flat tube 2 of heat exchanger body after spray, heat exchanger body 1 to be fixedly clamped between underframe 7 and gag lever post 8 by being arranged on removable location structure 9 between underframe 7 and gag lever post 8 thus preventing heat exchanger body radial displacement, C, welding heat exchanger: the heat exchanger body of having good positioning is delivered in NB stove and welds, after having welded, remove removable location structure 9 and also take out the heat exchanger body welded, thus obtained finished product heat exchanger, namely actual processing constantly, heat exchanger body is placed on underframe 7, driven by equipment mesh bag, after spray, by manually placing a gag lever post 8 in heat exchanger body front, by removable location structure 9, gag lever post 8 is connected with underframe 7, there is deformation when can prevent heat exchanger body from welding in NB stove like this, and gag lever post 8 and underframe 7 can adopt square steel to make, to reuse like this, cost-saving.
Particularly, as shown in Fig. 1 and Fig. 5-6, flat tube 2 in the present embodiment is horizontally disposed with and/or favours horizontal plane and arranges, the lower end of header 1 is provided with and flat tube 2 and radiating fin 3 can be made operationally to avoid the aerial construction 4 contacted with hydrops, use this structure that the bottom of heat exchanger can be made to make somebody a mere figurehead, prevent flat tube 2 from contacting with each other with radiating fin 3 and hydrops, avoid the getting rusty of flat tube 2 and radiating fin 3, corrode, and the condensate liquid on flat tube 2 can be made to discharge sooner when flat tube 2 favours when horizontal plane is arranged, be not easily gathered in flat tube 2 with on radiating fin 3.Wherein, here aerial construction 4 comprises two built on stilts bodys 41 extended to form by header 1 respectively downwards, and form overhead space 42 between two built on stilts bodys 41, built on stilts body 41 is connected as a single entity with header 1 or removably connects, during installation, by built on stilts body 41, exchanger base is maked somebody a mere figurehead, flat tube 2 can be maked somebody a mere figurehead with radiating fin 3 thus improve the anti-corrosion capability of this heat exchanger like this.Wherein, here radiating fin 3 is bent into continuous triangle waveform by metal sheet, radiating fin 3 is horizontally installed between two adjacent flat tubes 2 and the crest of radiating fin 3 and trough contact with two flat tubes 2 respectively, namely each radiating fin 3 is clipped between adjacent two flat tubes 2, and when flat tube 2 is horizontally disposed with, radiating fin 3 is horizontally disposed with; When flat tube 2 favour horizontal plane arrange time, radiating fin 3 and flat tube 2 are obliquely installed in the same way, condensed water can be made so to be not easily gathered on flat tube 2 and radiating fin 3, thus improve the heat exchange efficiency of this heat exchanger.Preferably, the width of the radiating fin 3 in the present embodiment is greater than the width of flat tube 2, and at least side of radiating fin 3 exceeds the sidepiece of flat tube 2, make like this can exceed flat tube 2 outside radiating fin 3, can increase heat exchange area like this, thus make up heat exchanger lower end the problem that aerial construction causes heat exchange area deficiency is set.
Further, be provided with at least one horizontally set between built on stilts body 41 in the present embodiment and be positioned at the deflector 5 of overhead space 42, the upper end of deflector 5 be positioned at a flat tube 2 of bottom side and when flat tube 2 is the flat tube 2 be obliquely installed deflector 5 be positioned at the downside of flat tube 2, preferably, here deflector 5 is provided with some guiding gutters 6 vertically arranged, when flat tube 2 when is here horizontally disposed with, the quantity of deflector 5 is two and is separately positioned on outside built on stilts body 41, contact respectively with flat tube 2 both sides respectively on the upside of deflector 5, such condensate liquid that can make is discharged under two deflector 5 laterals, when flat tube 2 favour horizontal plane arrange time, the quantity of deflector 5 is one and is arranged on the side being positioned at the downward-sloping direction of flat tube 2, make condensate liquid can flow out outside deflector 5 like this, deflector 5 also can adopt following structure simultaneously: described deflector 5 is in hollow structure, and deflector 5 two ends are plugged on built on stilts body 41 respectively, and described deflector 5 inside is connected with built on stilts body 41 inside respectively, can play to condensate liquid the heat exchange area that guide functions can improve again heat exchanger like this.
As Figure 1-4, here underframe 7 comprises in frame-shaped and the underframe 71 leant with flat tube, the width size of described underframe 71 is less than the spacing size between two headers 1, some bottom bars 72 paralleled with gag lever post 8 are respectively set bottom described underframe 71, and wherein at least one foundation bar 72 is arranged with gag lever post 8 is mutually corresponding, by the flat tube 2 of heat exchanger body is placed on underframe 71, and be wherein connected with gag lever post 8 flat tube 2 that realizes heat exchanger body of a foundation bar 72 is radial spacing with radiating fin 3, and cause compressing to outside the radiating fin 3 exceeding flat tube 2 in order to gag lever post 8 when preventing from locating, prevent from being out of shape outside radiating fin 3, here the lug 81 that some axis set gradually is provided with on the downside of gag lever post 8, each lug 81 leans with flat tube 2 respectively, and between adjacent two lugs 81, form the cell body 82 inserted for radiating fin 3.
Removable location structure 9 in the present embodiment comprises the hook support body 91 that at least two are separately positioned on gag lever post 8 two ends, described hook support body 91 is in bending, and described gag lever post 8 one end hooks inside support body 91 one end against being arranged on, and leans inside described hook support body 91 other end with bottom bar 72.In step B and C, the installation of removable location structure all can utilize the deformation of self to realize hooking installation and the releasing of support body by pressing gag lever post with removing, and has easy accessibility, can reuse, cost-saving advantage.Wherein, here hook support body 91 comprises vertical section 911, described vertical section 911 one end is outwards bent to form perpendicular to vertical section 911 and the first bending segment 912 leant with gag lever post 8, described vertical section 911 other end is provided with towards the first bending segment 912 side to tilt upward and extends and the second bending segment 913 leant with bottom bar 72, wherein, between second bending segment 913 and vertical section 911, angulation is 84 °, and preferably, hook support body 91 here adopts stainless steel tube to bend and forms.Preferably, the first bending segment 912 is provided with the position limiting structure that can prevent gag lever post 8 from departing from the first bending segment 912; Described position limiting structure comprises the limiting section 914 bent by the first bending segment 912 end downwards, and described limiting section 914 is in the nut type structure arranged in parallel with vertical section 911, namely prevents gag lever post 8 from departing from by limiting section 914 and hooks support body 91.
Embodiment two
As shown in Figure 7, the structure of the present embodiment, principle and implementation step and embodiment one similar, different place is, radiating fin 3 in the present embodiment is made up of metal sheet, radiating fin 3 is vertically disposed adjacent in parallel to each other and each radiating fin 3 intersects with each flat tube 2 respectively, preferably, here flat tube 2 is horizontally installed between two headers 1, radiating fin 3 is longitudinally arranged and mutually arranged in a crossed manner with flat tube 2, wherein, here radiating fin 3 sidepiece has the horizontal slot 31 arranged with each flat tube 2 one_to_one corresponding, flat tube 2 is horizontally disposed with and inserts in horizontal slot 31, the degree of depth of horizontal slot 31 is greater than the width of flat tube 2, namely flat tube 2 is here arranged in parallel, radiating fin 3 mutually intersects grafting by horizontal slot 31 and flat tube 2 and is connected, and make radiating fin 3 sidepiece can exceed flat tube 2 because the degree of depth of horizontal slot 31 is greater than flat tube 2 width, not only increase heat exchange area like this, also condensate liquid can be made to flow out along radiating fin 3 simultaneously.
Embodiment three
As seen in figures 8-14, the structure of the present embodiment, principle and implementation step and embodiment one similar, different place is, radiating fin 3 in the present embodiment is made up of metal sheet, radiating fin 3 is vertically disposed adjacent in parallel to each other and each radiating fin 3 intersects with each flat tube 2 respectively, preferably, here flat tube 2 is horizontally installed between two headers 1, radiating fin 3 is longitudinally arranged and mutually arranged in a crossed manner with flat tube 2, radiating fin 3 sidepiece has the inclination slot 32 arranged with each flat tube 2 one_to_one corresponding, flat tube 2 is obliquely installed and inserts in inclination slot 32, the degree of depth of inclination slot 32 is greater than the width of flat tube 2, namely flat tube 2 here favours horizontal plane and arranges, such condensate liquid that can make can be discharged sooner, not easily be gathered on flat tube 2, and radiating fin 3 intersects grafting mutually by inclination slot 32 and flat tube 2 is connected, and make radiating fin 3 sidepiece can exceed flat tube 2 because the degree of depth of inclination slot 32 is greater than flat tube 2 width, not only increase heat exchange area like this, also condensate liquid can be made to flow out along radiating fin simultaneously.
In order to improve radiating fin 3, stability is installed, inclination slot 32 is tilted to lower setting and the notch 321 of inclination slot 32 is positioned at the lower end of inclination slot 32, make like this radiating fin 3 and flat tube 2 mutually grafting time can be tilted to down and be inserted on flat tube 2, which enhance the fastness that radiating fin 3 is installed, prevent radiating fin 3 from departing from flat tube 2, and preferably, radiating fin 3 comprises the fin side strip 33 in strip, described fin side strip 33 side be provided with some be tilted to respectively under heat radiation slanted bar 34, and described heat radiation slanted bar 34 is along the axial setting that distributes successively of fin side strip 33, above-mentioned inclination slot 32 is formed between adjacent two heat radiation slanted bars 34, described both sides, heat radiation slanted bar 34 end are respectively equipped with guiding surface 341, and the guiding surface 341 on adjacent two heat radiation slanted bars 34 forms expansion mouth 342 at the opening part of inclination slot 32, can be convenient to inclination slot 32 and flat tube 2 grafting mutually like this, and form angle α between described inclination slot 32 and the center line of radiating fin 3, and the size of described angle α is 110 °-130 °, described fin side strip 33 is axially arranged with some the first punching hole 35 being uniformly distributed setting successively, described heat radiation slanted bar 34 end is provided with the second punching hole 36, the middle part of described heat radiation slanted bar 34 is provided with along the axially extended bar-shaped trough 37 of heat radiation slanted bar 34, and described bar-shaped trough 37 both sides are respectively equipped with some bar shaped inclined holes 38.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ header 1 herein, flat tube 2, radiating fin 3, horizontal slot 31, inclination slot 32, notch 321, fin side strip 33, heat radiation slanted bar 34, guiding surface 341, expansion mouth 342, first punching hole 35, second punching hole 36, bar-shaped trough 37, bar shaped inclined hole 38, aerial construction 4, built on stilts body 41, overhead space 42, deflector 5, guiding gutter 6, underframe 7, underframe 71, bottom bar 72, gag lever post 8, lug 81, cell body 82, removable location structure 9, hook support body 91, vertical section 911, first bending segment 912, second bending segment 913, limiting section 914, the terms such as angle α, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (10)
1. a processing method for micro-channel parallel flow heat exchanger, is characterized in that, this method comprises the steps:
A, assembling heat exchanger: arrange two and be parallel to each other and the header (1) vertically arranged, some being parallel to each other and the flat tube of horizontally set (2) is installed between two headers (1), each flat tube (2) along header (1) axially spaced-apart distribution and the two ends of flat tube (2) connect with header (1) respectively, some radiating fins (3) contacted with flat tube (2) are then installed between header (1), thus are assembled into heat exchanger body;
B, location heat exchanger: the heat exchanger body assembled is placed on horizontally disposed underframe (7), heat exchanger body is placed at least one and is axially parallel to underframe (7) and the gag lever post (8) contacted with the flat tube (2) of heat exchanger body, heat exchanger body (1) to be fixedly clamped between underframe (7) and gag lever post (8) by being arranged on removable location structure (9) between underframe (7) and gag lever post (8) thus preventing heat exchanger body radial displacement;
C, welding heat exchanger: delivered in NB stove by the heat exchanger body of having good positioning and weld, after having welded, remove removable location structure (9) and take out the heat exchanger body welded, thus obtained finished product heat exchanger.
2. the processing method of micro-channel parallel flow heat exchanger according to claim 1, it is characterized in that, described flat tube (2) is horizontally disposed with and/or favours horizontal plane and arranges, and the lower end of described header (1) is provided with and flat tube (2) and radiating fin (3) can be made operationally to avoid the aerial construction (4) contacted with hydrops; Described aerial construction (4) comprises two built on stilts bodys (41) extended to form by header (1) respectively downwards, and forming overhead space (42) between two built on stilts bodys (41), described built on stilts body (41) and header (1) are connected as a single entity or removably connect.
3. the processing method of micro-channel parallel flow heat exchanger according to claim 2, it is characterized in that, described radiating fin (3) is bent into continuous triangle waveform by metal sheet, described radiating fin (3) is horizontally installed between two adjacent flat tubes (2) and the crest of radiating fin (3) and trough contact with two flat tubes (2) respectively, the width of described radiating fin (3) is greater than the width of flat tube (2), and at least side of radiating fin (3) exceeds the sidepiece of flat tube (2).
4. the processing method of micro-channel parallel flow heat exchanger according to claim 2, it is characterized in that, described radiating fin (3) is made up of metal sheet, and described radiating fin (3) is vertically disposed adjacent in parallel to each other and each radiating fin (3) intersects with each flat tube (2) respectively.
5. the processing method of micro-channel parallel flow heat exchanger according to claim 4, it is characterized in that, described radiating fin (3) sidepiece has the horizontal slot (31) arranged with each flat tube (2) one_to_one corresponding, described flat tube (2) is horizontally disposed with and inserts in horizontal slot (31), and the degree of depth of described horizontal slot (31) is greater than the width of flat tube (2); Or, described radiating fin (3) sidepiece has the inclination slot (32) arranged with each flat tube (2) one_to_one corresponding, described flat tube (2) is obliquely installed and inserts in inclination slot (32), the degree of depth of described inclination slot (32) is greater than the width of flat tube (2), and described inclination slot (32) is tilted to lower setting and the notch (321) of inclination slot (32) is positioned at the lower end of inclination slot (32).
6. the processing method of the micro-channel parallel flow heat exchanger according to Claims 2 or 3 or 4 or 5, it is characterized in that, be provided with at least one horizontally set between described built on stilts body (41) and be positioned at the deflector (5) of overhead space (42), the upper end of described deflector (5) be positioned at a flat tube (2) of bottom side and when flat tube (2) for be obliquely installed flat tube (2) time described in deflector (5) be positioned at the downside of flat tube (2).
7. according to the processing method of the micro-channel parallel flow heat exchanger in claim 1-5 described in any one, it is characterized in that, described underframe (7) comprises in frame-shaped and the underframe (71) leant with flat tube, the width size of described underframe (71) is less than the spacing size between two headers (1), described underframe (71) bottom arranges some bottom bars (72) paralleled with gag lever post (8) respectively, and wherein at least one foundation bar (72) is arranged with gag lever post (8) is mutually corresponding.
8. the processing method of micro-channel parallel flow heat exchanger according to claim 7, it is characterized in that, described removable location structure (9) comprises the hook support body (91) that at least two are separately positioned on gag lever post (8) two ends, described hook support body (91) is in bending, and described gag lever post (8) one end hooks inside support body (91) one end against being arranged on, and leans inside described hook support body (91) other end with bottom bar (72).
9. the processing method of micro-channel parallel flow heat exchanger according to claim 8, it is characterized in that, described hook support body (91) comprises vertical section (911), described vertical section (911) one end is outwards bent to form perpendicular to vertical section (911) and the first bending segment (912) leant with gag lever post (8), and described vertical section (911) other end is provided with towards the first bending segment (912) side to tilt upward and extends and the second bending segment (913) leant with bottom bar (72).
10. the processing method of micro-channel parallel flow heat exchanger according to claim 9, it is characterized in that, described the first bending segment (912) is provided with the position limiting structure that can prevent gag lever post (8) from departing from the first bending segment (912); Described position limiting structure comprises the limiting section (914) bent by the first bending segment (912) end downwards, and described limiting section (914) is in the nut type structure arranged in parallel with vertical section (911).
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| CN201510465361.8A CN105057901A (en) | 2015-07-31 | 2015-07-31 | Machining method of microchannel parallel flow heat exchanger |
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| CN201510465361.8A CN105057901A (en) | 2015-07-31 | 2015-07-31 | Machining method of microchannel parallel flow heat exchanger |
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| CN201510465361.8A Pending CN105057901A (en) | 2015-07-31 | 2015-07-31 | Machining method of microchannel parallel flow heat exchanger |
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