CN209214155U - A kind of heat exchanger - Google Patents

A kind of heat exchanger Download PDF

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Publication number
CN209214155U
CN209214155U CN201822145665.8U CN201822145665U CN209214155U CN 209214155 U CN209214155 U CN 209214155U CN 201822145665 U CN201822145665 U CN 201822145665U CN 209214155 U CN209214155 U CN 209214155U
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China
Prior art keywords
header
heat exchanger
headers
core
medium
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CN201822145665.8U
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Chinese (zh)
Inventor
徐正本
李宴辉
黄国强
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Songz Automobile Air Conditioning Co Ltd
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Songz Automobile Air Conditioning Co Ltd
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Priority to CN201822145665.8U priority Critical patent/CN209214155U/en
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Abstract

The utility model discloses a kind of heat exchangers, belong to technical field of heat exchange devices, including at least two cores, at least two cores are arranged side by side, core includes two headers, is communicated with several heat exchanger tubes between two headers, is respectively arranged with medium entrance and media outlet on two headers of two core the same sides on the outermost side, and each core is located in the header of the side and is provided with partition, header is separated to form two chambers on the axis direction of header by partition;Connection structure, including medium diversion seat, medium diversion seat are set between adjacent two header with partition, and are located at the one end of header far from medium entrance, are configured as being connected to two adjacent headers.The utility model by with each header of the header the same side for being provided with medium entrance in partition is set so that in each heat exchanger tube working media circulation relative equilibrium so that the uniformity of temperature profile of entire core, improves heat exchange efficiency.

Description

A kind of heat exchanger
Technical field
The utility model relates to technical field of heat exchange devices more particularly to a kind of heat exchangers.
Background technique
Co 2 heat exchanger be widely used in Heating,Ventilating and Air Conditioning, chemical industry, electric power, in automobile and other industries.This is because dioxy Changing carbon has many advantages such as cheap, safe and harmless, environmentally friendly.
Existing co 2 heat exchanger usually only welds a refrigerant input pipe on header, defeated close to refrigerant The flat tube for entering pipe becomes proximal end flat tube, and the flat tube far from refrigerant input pipe becomes distal end flat tube.Refrigerant enters header Afterwards, will receive the interference of flat tube in header, flow resistance is larger, the imperfect flow of refrigerant, so that distal end flat tube Refrigerant circulation is far smaller than the refrigerant amount of flow of proximal end flat tube, and leading to entire heat exchanger, temperature distribution is non-uniform, from And keep the heat exchange efficiency of co 2 heat exchanger lower.
Utility model content
The purpose of this utility model is to provide a kind of heat exchangers, to realize the heat exchange effect for improving co 2 heat exchanger Rate.
As above design, the technical scheme adopted by the utility model is
A kind of heat exchanger, comprising:
At least two cores, the core include two headers, are communicated with several heat exchange between two headers Pipe, at least two cores are arranged side by side, on two headers of two described core the same sides on the outermost side It is respectively arranged with medium entrance and media outlet, and each core and the header position for being provided with the medium entrance In being provided with partition in the header of the same side, the partition is on the axis direction of the header by the header It is separated to form two chambers;
Connection structure, including medium diversion seat, the medium diversion seat are set to adjacent two with the partition Between the header, and it is located at the one end of the header far from the medium entrance, is configured as being connected to adjacent two The header.
Further, the heat exchanger tube is flat tube, and the flat tube includes middle part and is connected to the centre The end at portion both ends, and the width of the end is gradually reduced along the direction far from the middle part.
Further, the header side wall is internally provided with the fitting groove with the matching ends to the header Mouthful, the width of the assembly notch is less than the width of the middle part and is greater than width of the end far from described middle part one end Degree.
Further, multiple through holes are set along its length in the flat tube, and multiple through holes are at it It is uniformly distributed in width direction.
Further, fin, the fin are provided between adjacent two heat exchanger tube of each core Including several sequentially connected V-type fins.
Further, the V-type fin includes two side plates being connected, and the side plate two sides are provided with shutter knot Structure.
Further, position offers drainage hole to each of each described V-type fin side plate therebetween, is used for Condensed water is discharged.
Further, it is provided with deflector hole on the medium diversion seat, the collection positioned at medium diversion seat two sides The position opposite with the deflector hole offers recirculation hole in flow tube.
Further, the connection structure further includes end cover, and each header is that both ends are provided with opening Tubular structure, the end cover is covered on the opening of the tubular structure.
Further, the connection structure further includes support base, and the support base is connected to the end cover, and is arranged Between two adjacent headers.
The utility model has the following beneficial effects:
The utility model proposes heat exchanger, by each afflux with the header the same side for being provided with medium entrance Partition is set in pipe, which is separated to form two chambers by partition, and working media is enabled to be first into and medium Import be connected core header chamber in, and then the another of the core is flowed by the heat exchanger tube with the chamber In header, then entered in another chamber using the heat exchanger tube with another chamber of the core, so that each heat exchange The circulation relative equilibrium of working media in managing, so that the uniformity of temperature profile of entire core, improves heat exchange efficiency.Pass through At least two cores arranged side by side are set, and by medium diversion seat two cores of series connection, working media can be increased Process enables working media adequately to carry out heat exchange with external environment, improves heat exchange efficiency.In addition, being set by fission The core and medium diversion seat set, convenient for the assembling of the heat exchanger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the heat exchanger that the utility model embodiment one provides;
Fig. 2 is the structural schematic diagram for the core that the utility model embodiment one provides;
Fig. 3 is the structural schematic diagram of the end cover that the utility model embodiment one provides and medium diversion seat;
Fig. 4 is the structural schematic diagram of the end cover that the utility model embodiment one provides and support base;
Fig. 5 is the partial structural diagram for the heat exchanger tube that the utility model embodiment one provides;
Fig. 6 is the assembling structure schematic diagram of the heat exchanger tube that the utility model embodiment one provides and header;
Fig. 7 is the structural schematic diagram for the fin that the utility model embodiment one provides;
Fig. 8 is the partial structural diagram in Fig. 7 at A
In figure:
11, the first core;12, the second core;101, heat exchanger tube;1011, middle part;1012, end;1013, through hole; 102, the first header;1021, partition;1022, flange;1023, recirculation hole;103, the second header;
21, medium diversion seat;211, the first arcwall face;212, deflector hole;22, end cover;221, bottom plate;222, round Protrusion;223, clamping plate;23, support base;231, the second arcwall face;
3, fin;31, V-type fin;311, side plate;3111, drainage hole;3112, Dan Ye;
41, medium inlet pipe;42, medium outlet pipe.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer, Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
Embodiment one
As shown in Figures 1 to 8, a kind of heat exchanger is present embodiments provided, carbon dioxide is specially used to be situated between as work The co 2 heat exchanger of matter (refrigerant), carbon dioxide pass through the air of heat exchanger and extraneous flowing in heat exchanger internal flow Heat exchange is carried out, other working medias, such as R290, R124a etc. are of course also apply to.
Specifically, the heat exchanger includes at least two cores and connection structure.In the present embodiment, it is with two cores Example is illustrated, and two cores are arranged side by side, and two cores are respectively designated as the first core 11 and the second core 12.Each core Body includes two headers, two headers is respectively designated as the first header 102 and the second header 103, and each First header 102 of core is located at the same side, is provided with medium entrance on the first header 102 of the first core 11, and second Media outlet is provided on first header 102 of core 12, and medium entrance is connected with medium inlet pipe 41, media outlet connection There is medium outlet pipe 42.
In addition, being provided with partition 1021 in the first header 102 in the radial direction thereof, partition 1021 is in the first header 102 Axis direction on the first header 102 is separated to form two chambers, in the present embodiment, partition 1021 is in the first afflux The middle position of pipe 102, and partition 1021 is perpendicular to the axis direction of the first header 102, certainly in other embodiments, every Plate 1021 can be a certain included angle with the axis direction of the first header 102, and the size of angle is defined according to actual needs. In addition, being communicated with several heat exchanger tubes 101 between the first header 102 and the second header 103 of each core, and in this reality It applies in example, the distance between any two adjacent heat exchange tubes 101 are 7.8mm, and certainly in other embodiments, any two are adjacent The distance between heat exchanger tube 101 can be configured according to actual needs.
Connection structure includes medium diversion seat 21, and medium diversion seat 21 is set between two the first headers 102, and position In first one end of header 102 far from media outlet, two adjacent the first headers 102 can be connected to.
By the way that partition 1021 is arranged in each first header 102, the first header 102 is divided and forms two chambers Room enables to working media to be first into the chamber of the first header 102 of first core 11 that is connected with medium entrance It is interior, and then be flowed into the second header 103 with the heat exchanger tube of the chamber 101, then using with another chamber Heat exchanger tube 101 enter in another chamber so that in each heat exchanger tube 101 working media circulation relative equilibrium, thus So that the uniformity of temperature profile of entire core, improves heat exchange efficiency.By the way that two cores arranged side by side are arranged, and pass through Jie Matter diversion seat 21 connect two cores, the process of working media can be increased, enable working media adequately with extraneous ring Border carries out heat exchange, improves heat exchange efficiency.In addition, passing through the core and medium diversion seat 21 of split settings, it is not only convenient for this and changes The assembling of hot device, and can need to adjust the quantity of core according to heat exchange.
As shown in Fig. 2, the first header 102 is identical with the structure of the second header 103, it is using high-frequency welding or mould Has the aluminum tubular structure of the both ends open of extrusion forming.The surface of tubular structure be coated with compound scaling powder, convenient for it is flat Pipe and medium diversion seat 21 are welded, and the wall thickness of tubular structure is 2.2mm-2.5mm, so that the first header 102 and the Characteristic with high pressure when two headers 103 meet carbon dioxide as working media, in addition, in the present embodiment, tubulose Structure is specially round tube shape structure.First header 102 is separated to form two chambers up and down by partition 1021, by upper and lower two chambers Room is respectively designated as first chamber and second chamber, and second chamber offers recirculation hole 1023 on its side wall, in the present embodiment In, recirculation hole 1023 is circular hole, and the diameter of recirculation hole 1023 is 4mm, and the quantity of recirculation hole 1023 is four, certainly at other In embodiment, quantity, diameter and the shape of recirculation hole 1023 can be configured according to actual needs.
Referring to Fig.1, it in order to be connected to two adjacent the first headers 102, is provided between two the first headers 102 Medium diversion seat 21, and medium diversion seat 21 is located at the lower section of partition 1021 can be connected to two of two the first headers 102 the Two chambers.As shown in figure 3, the opposite two sides of medium diversion seat 21 are provided with the first arcwall face 211,211 energy of the first arcwall face It is enough to be matched with the side wall of the first header 102, and position opposite with recirculation hole 1023 on medium diversion seat 21 offers and leads The quantity of discharge orifice 212, deflector hole 212 is identical as the quantity of recirculation hole 1023 and corresponds, and deflector hole 212 is similarly round Hole, diameter 4mm.The working media in the first header 102 of the first core 11 is enabled to pass through it by deflector hole 212 Recirculation hole 1023 and deflector hole 212 enter in the first header 102 of the second core 12, realize working media in two cores Flowing between body.In the present embodiment, medium diversion seat 21 is approximately equal in the length of 102 axis direction of the first header The half of one header, 102 length, certainly in other embodiments, the length of medium diversion seat 21 can carry out according to actual needs Setting.
In addition, connection structure further includes support base 23, support base 23 is set to adjacent two the first headers 102 or phase Between two adjacent the second headers 103, in the present embodiment, there are three the settings of support base 23, and one of support base 23 is set It is placed between two the first headers 102, and is located at first one end of header 102 far from medium diversion seat 21, other two Support base 23 is set between two the second headers 103, and is located at the both ends of the second header 103.Specifically, support base 23 opposite two sides are provided with the second arcwall face 231, and the second arcwall face 231 can be with the second header 103 or the first afflux The side wall of pipe 102 matches.Certainly in other embodiments, the quantity of support base 23 is configured according to the quantity of core, than Such as when core tool there are three when, the quantity of support base 23 is six.In addition, support base 23 is in the axis side of the second header 103 Upward length less than 103 length of the second header half, by be arranged support base 23, can not only realize two cores it Between be fixedly connected, and enable between two cores that there are certain gaps, to increase using the surface of each core The heat exchange area of working media and outer diameter environment improves heat exchange efficiency, and is also convenient for exchanging heat there are gap between two cores The condensed water on device surface slides from afflux tube wall.
In addition, in order to realize that connection structure is also to the sealing of 103 both ends open of the first header 102 and the second header Including end cover 22, in the present embodiment, there are four the settings of end cover 22.As shown in Figures 3 and 4, end cover 22 includes Bottom plate 221, there are two clamping plates 223 in the setting of the two sides of its width direction for bottom plate 221, and two clamping plates 223 can be to support base 23 Or medium diversion seat 21 is clamped, and convenient for positioning in assembling to support base 23 and medium diversion seat 21, and is convenient for It is subsequent to be welded and fixed.It is also set up on bottom plate 221 there are two circular protrusions 222, two circular protrusions 222 are able to extend into In two adjacent first headers 102 or two adjacent second headers 103, and the outer diameter of circular protrusions 222 is equal to the One header, 102 internal diameter, in the present embodiment, circular protrusions 222 are extend into the first header 102 or the second header 103 Length be 4mm-6mm.In order to facilitate the disengaging of working media, one of them matches close with two the first headers 102 It blocks lid 22 and offers through-hole in the position of two circular protrusions 222, thus when the end cover 22 lid is located at two first collection In flow tube 102, two through-holes can be correspondingly formed respectively with the opening of two the first headers 102 medium of entire heat exchanger into Mouth and media outlet.
When in other embodiments, the quantity setting of core there are three or at three or more, it is settable on end cover 22 There are three or three or more circular protrusions 222.It certainly, can also be by multiple end covers 22 to the first header 102 or the Two headers 103 are sealed, for example two or three circular protrusions 222 are provided on each end cover 22.
As shown in figure 5, heat exchanger tube 101 is flat tube, flat tube be one-time formed aluminum design squeezed by mold, and The outer just face of flat tube is coated with zinc layers, prevents from corroding.Nine through holes 1013, and nine are provided in flat tube along its length A through hole 1013 is uniformly distributed in the width direction.In the present embodiment, flat tube width is 12mm, with a thickness of 1.65mm, through hole 1013 are round hole, and round hole guarantees that flat tube has certain structural strength, and the diameter of round hole is 0.7mm guarantees that each unilateral thickness of flat tube is not less than 0.45mm, so that flat tube meets carbon dioxide as working media When the characteristic with high pressure.Certainly in other embodiments, quantity, shape and the above-mentioned size of through hole 1013 can be according to realities Border needs to be configured.
In addition, flat tube includes middle part 1011 and the end 1012 for being connected to 1011 both ends of middle part, wherein in Between the width in portion 1011 remain unchanged, the width of end 1012 is gradually reduced along the direction far from middle part 1011, in this implementation In example, the maximum width of end 1012 and the width of middle part 1011 are 12mm, minimum widith 5mm.In addition, constituting flat The middle part 1011 of pipe and two ends 1012 are integrally formed using Extrusion Process of Aluminum Alloy Profile drawing process, and right in process Two ends 1012 carry out necking processing.
As shown in fig. 6, for the ease of the assembling of flat tube and header, to using inside it on the side wall of each header It is stamped and formed out assembly notch, assembly notch has towards the flange 1022 inside header, and during the width for assembling notch is less than Between portion 1011 width be greater than width of the end 1012 far from 1011 one end of middle part, that is to say, that the width for assembling notch is greater than 5mm is less than 12mm.Notch is assembled by setting, is oriented to convenient for the assembling to flat tube, and increases header and flat The efficient weld area of flat pipe is conducive to the structural stability for improving header and flat tube and pressure-resistant performance.In addition, flange 1022 block end 1012, so that the relative position of flat tube and header is kept constant before welding, prevent flat tube It is displaced before welding or in welding process with header.
Referring to Fig.1, fin 3 is provided between adjacent two heat exchanger tube 101 of each core.As shown in Figure 7 and Figure 8, Fin 3 includes several sequentially connected V-type fins 31, and V-type fin 31 includes two side plates 311 being connected, in the present embodiment In, side plate 311 with a thickness of 0.07mm-0.1mm, certainly in other embodiments, the thickness of side plate 311 can be according to actual needs It is configured.The two sides of each side plate 311 of V-type fin 31 are provided with shutter, and shutter is capable of increasing wing Heat exchange area of the piece 3 with external environment itself improves heat exchange efficiency.In addition, shutter includes multi-disc list leaf arranged side by side Sharp angle between 3112, Dan Ye 3112 and side plate 311 is 34 ° -38 °, while the lower planes of fin 3 and fin 3 go out Wind face keeps vertical, so that the air in external environment has good circulation between fin 3, reduces air drag, together When increase heat exchange area, improve heat exchange effect.
In addition, the intermediate position of each side plate 311 of V-type fin 31 offers drainage hole 3111, for condensation to be discharged Water.It is easy to form condensed water, excessive condensed water on 3 surface of fin this is because outside air carries out heat exchange by fin 3 It will affect heat exchange efficiency, the condensed water flowing on 3 surface of air driven fin of external world's flowing, and blown by drainage hole 3111 Out, it avoids accumulating excessive condensed water on fin 3, and drainage hole 3111 is set, can reduce the weight of fin 3, to drop The weight of low entire heat exchanger, is readily transported and installs.
Embodiment two
The structure of the heat exchanger provided in heat exchanger provided in this embodiment and embodiment one is essentially identical, and difference exists In: the heat exchanger in the present embodiment includes three cores, wherein dividing on two headers of outermost two core the same sides It is not provided with medium entrance and media outlet, and each core is located at the afflux of the same side with the header for being provided with medium entrance Partition is provided in pipe, header is separated to form two chambers on the axis direction of header by partition.And in this implementation In example, there are two the settings of medium diversion seat, and there are six support base settings.
Certainly in other embodiments, the quantity of core may also be configured to four or more, and medium diversion seat and The quantity of support base is configured according to the quantity of core.When the quantity of core is more than or equal to three, outermost two cores It is respectively arranged with medium entrance and media outlet on the header of the same side two, guarantees that working media passes fully through each core and fills Divide and carry out heat exchange with outer diameter environment, improves heat exchange efficiency.
Embodiment of above only elaborates the basic principles and features of the present invention, and the utility model is not by above-mentioned reality The mode of applying limits, and on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes, These changes and changes fall within the scope of the claimed invention.The utility model requires protection scope is by appended Claims and its equivalent thereof.

Claims (10)

1. a kind of heat exchanger characterized by comprising
At least two cores, the core include two headers, are communicated with several heat exchanger tubes between two headers (101), at least two cores are arranged side by side, two headers of two described core the same sides on the outermost side On be respectively arranged with medium entrance and media outlet, and each core and the header that is provided with the medium entrance It is provided in the header of the same side partition (1021), the partition (1021) is in the axis side of the header The header is separated to form two chambers upwards;
Connection structure, including medium diversion seat (21), the medium diversion seat (21) are set to the partition (1021) Between two adjacent headers, and it is located at the one end of the header far from the medium entrance, is configured as being connected to Two adjacent headers.
2. heat exchanger according to claim 1, which is characterized in that the heat exchanger tube (101) is flat tube, the flat tube Including middle part (1011) and it is connected to the end (1012) at the middle part (1011) both ends, and the end (1012) Width be gradually reduced along far from the direction of the middle part (1011).
3. heat exchanger according to claim 2, which is characterized in that the header side wall is to being arranged inside the header There is the assembly notch matched with the end (1012), the width of the assembly notch is less than the width of the middle part (1011) Degree and the width for being greater than the end (1012) the separate middle part (1011) one end.
4. heat exchanger according to claim 2, which is characterized in that multiple pass through is arranged in the flat tube along its length Through-hole (1013), and multiple through holes (1013) are uniformly distributed in the width direction.
5. heat exchanger according to claim 1, which is characterized in that adjacent two heat exchanger tube of each core (101) it is provided between fin (3), the fin (3) includes several sequentially connected V-type fins (31).
6. heat exchanger according to claim 5, which is characterized in that the V-type fin (31) includes two sides being connected Plate (311), side plate (311) two sides are provided with shutter.
7. heat exchanger according to claim 6, which is characterized in that each of each described V-type fin (31) side plate (311) position offers drainage hole (3111) therebetween, for condensed water to be discharged.
8. heat exchanger according to claim 1, which is characterized in that be provided with deflector hole on the medium diversion seat (21) (212), position opposite with the deflector hole (212) on the header of medium diversion seat (21) two sides is opened Equipped with recirculation hole (1023).
9. heat exchanger according to claim 1, which is characterized in that the connection structure further includes end cover (22), often A header is the tubular structure that both ends are provided with opening, and the end cover (22) is covered on the tubular structure Opening.
10. heat exchanger according to claim 9, which is characterized in that the connection structure further includes support base (23), described Support base (23) is connected to the end cover (22), and is set between two adjacent headers.
CN201822145665.8U 2018-12-20 2018-12-20 A kind of heat exchanger Active CN209214155U (en)

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Application Number Priority Date Filing Date Title
CN201822145665.8U CN209214155U (en) 2018-12-20 2018-12-20 A kind of heat exchanger

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CN209214155U true CN209214155U (en) 2019-08-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110653564A (en) * 2019-09-19 2020-01-07 中国原子能科学研究院 Collecting pipe and processing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110653564A (en) * 2019-09-19 2020-01-07 中国原子能科学研究院 Collecting pipe and processing method thereof

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