CN108180779A - Structure at a kind of printed circuit board heat exchanger entrance shunting - Google Patents
Structure at a kind of printed circuit board heat exchanger entrance shunting Download PDFInfo
- Publication number
- CN108180779A CN108180779A CN201711477707.1A CN201711477707A CN108180779A CN 108180779 A CN108180779 A CN 108180779A CN 201711477707 A CN201711477707 A CN 201711477707A CN 108180779 A CN108180779 A CN 108180779A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- entrance
- exchanger channels
- guiding channel
- shunting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
Abstract
The invention discloses structures at a kind of printed circuit board heat exchanger entrance shunting, in the case that entrance guiding channel and heat exchanger channels are there are certain angle, the structure of multiple heat exchanger channels is corresponded to using single flow-guiding channel, change the gradient of heat exchanger channels entrance face simultaneously, its angle with flow-guiding channel is made more to mitigate, the shunting rib between heat exchanger channels is allowd effectively to accept incoming, prevents fluid from excessively concentrating in single channel, the phenomenon that being unevenly distributed so as to improve channel capacity.On this basis, change indent of the rib from heat exchanger channels entrance face, the flow distribution uneven phenomenon that can be effectively improved in channel.
Description
Technical field
The present invention relates to printed circuit board technical field of heat exchangers, particularly, are related to a kind of printed circuit sheet heat exchanger and enter
Structure at mouth shunting.
Background technology
Printed circuit board heat exchanger is a kind of high temperature high voltage resistant, high-efficiency compact formula heat exchanger, generally includes multiple stackings
The heat exchange plate of arrangement, the main part of every layer of heat exchange plate are the multiple small streams processed by etching or machining mode
Body heat exchanger channels usually etch or are machined with to lead to the one-to-one water conservancy diversion of heat exchanger channels at the inlet distribution of heat exchanger channels
Road, each layer heat exchange plate are combined by Diffusion Welding mode, form heat exchange core body.Due to its compact structure and efficiently
Heat exchange performance, printed circuit sheet heat exchanger can be used in multiple fields.The fluid of printed circuit board heat exchanger plate on piece changes
Its size of the passage of heat is smaller, and in the case of multiple heat exchanger channels laid out in parallel, the structure design at existing inlet distribution influences
Assignment of traffic in heat exchanger channels, so as to influence the overall performance of heat exchanger.
Invention content
For the drawbacks described above and deficiency of the prior art, the present invention provides a kind of shuntings of printed circuit board heat exchanger entrance
Locate structure, the flow distribution uneven phenomenon that can be effectively improved in heat exchanger channels.
The present invention is that technical solution is used by solving its technical problem：
Structure at a kind of printed circuit board heat exchanger entrance shunting, it is several parallel on same heat exchange plate including being arranged on
The entrance guiding channel of arrangement and the heat exchanger channels of multiple parallel arrangements, the entrance guiding channel are arranged on entering for heat exchange plate
Oral area, the heat exchanger channels are arranged on the main part of heat exchange plate, the entrance guiding channel and heat exchanger channels close to described
The inlet of heat exchange plate crosses, and the angle theta between the center line of the two1More than 90 degree, fluid leads to from the entrance guiding
Road flows into heat exchange plate, and the entrance guiding channel will enter in the divided fluid stream to each heat exchanger channels of heat exchange plate,
It is characterized in that,
The quantity of the entrance guiding channel is less than the quantity of the heat exchanger channels；
The flow-guiding channel and heat exchanger channels are arranged on by etching or machining mode on heat exchange plate.
Preferably, the shunting rib between adjacent two heat exchanger channels of corresponding same entrance guiding channel is integrally inwardly indented one
Set a distance δ.
Preferably, the distance δ that the different shunting ribs of corresponding same entrance guiding channel are inwardly indented is different.
Preferably, the entrance face of each heat exchanger channels, which has, is respectively provided with angle theta between gradient, with vertical direction2,
The central axis of the vertical direction and each heat exchanger channels.
Compared with the existing technology, structure at printed circuit board heat exchanger entrance shunting of the invention, when entrance guiding channel
With heat exchanger channels there are certain angle in the case of, the structure of multiple heat exchanger channels is corresponded to using single flow-guiding channel, is changed simultaneously
Become the gradient of heat exchanger channels entrance face, its angle with flow-guiding channel is made more to mitigate so that point between heat exchanger channels
Stream rib can effectively accept incoming, prevent fluid from excessively concentrating in single channel, be unevenly distributed so as to improve channel capacity
Phenomenon.On this basis, change indent of the rib from heat exchanger channels entrance face, the flow distribution that can be effectively improved in channel
Uneven phenomenon.
Description of the drawings
Fig. 1 is structure diagram at the printed circuit board heat exchanger entrance shunting of the present invention；
In Fig. 2 (A), the indent δ of rib 1 is shunted1For 0.25mm, the indent δ of rib 2 is shunted2Entrance point during for 0.5mm
Structure and exit velocity distribution schematic diagram at stream；
In Fig. 2 (B), the indent δ of rib 1 is shunted1For 0.5mm, the indent δ of rib 2 is shunted2Entrance point during for 0.25mm
Structure and exit velocity distribution schematic diagram at stream；
In Fig. 2 (C), the indent δ of rib 1 is shunted1For 2mm, the indent δ of rib 2 is shunted2It is tied at inlet distribution during for 2mm
Structure and exit velocity distribution schematic diagram；
In Fig. 2 (D), the indent δ of rib 1 is shunted1For 0.3mm, the indent δ of rib 2 is shunted2Inlet distribution during for 0.3mm
Locate structure and exit velocity distribution schematic diagram；
Fig. 3 is mass flow discrepancy evenness schematic diagram in different structure lower channel；
Fig. 4 is increases heat exchanger channels entrance face and vertical direction angle theta2The assignment of traffic schematic diagram of simulation；
In Fig. 5 (A), the indent δ of rib 1 is shunted1For 0mm, the indent δ of rib 2 is shunted2For 0mm, the indent of rib 3 is shunted
δ3Structure and exit velocity distribution schematic diagram at inlet distribution during for 0mm；
In Fig. 5 (B), the indent δ of rib 1 is shunted1For 0mm, the indent δ of rib 2 is shunted2For 0mm, the indent of rib 3 is shunted
δ3Structure and exit velocity distribution schematic diagram at inlet distribution during for 1.7mm；
In Fig. 5 (C), the indent δ of rib 1 is shunted1For 0.21mm, the indent δ of rib 2 is shunted2For 0.43mm, rib 3 is shunted
Indent δ3For 0.65mm；When inlet distribution at structure and exit velocity distribution schematic diagram；
In Fig. 5 (D), the indent δ of rib 1 is shunted1For 0.50mm, the indent δ of rib 2 is shunted2For 0.72mm, rib 3 is shunted
Indent δ3Structure and exit velocity distribution schematic diagram at inlet distribution during for 0.94mm；
Fig. 6 is mass flow discrepancy evenness schematic diagram in different structure lower channel.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, develop simultaneously embodiment referring to the drawings, right
The present invention is further described.It should be noted that the realization method for not being painted or describing in attached drawing, is technical field
In form known to a person of ordinary skill in the art.In addition, the direction term mentioned in following embodiment, for example, " on ", " under ", " preceding ",
" rear ", "left", "right", " top ", " bottom " etc. are only the directions of refer to the attached drawing.Therefore, the direction term used is for illustrating simultaneously
It is non-to be used for limiting the present invention.
As shown in Figure 1, structure at the printed circuit board heat exchanger entrance shunting of the present invention, including being arranged on same heat exchanger plates
The entrance guiding channel 10 of several parallel arrangements of on piece and the heat exchanger channels 20 of multiple parallel arrangements, entrance guiding channel 10 are set
The inlet portion in heat exchange plate is put, heat exchanger channels 20 are arranged on the main part of heat exchange plate, and entrance guiding channel 10 and heat exchange are logical
Road 20 crosses, and the angle theta between the center line of the two in the inlet close to heat exchange plate1More than 90 degree, fluid is from entrance
Flow-guiding channel 10 flows into heat exchange plate, and entrance guiding channel 10 will enter the divided fluid stream of heat exchange plate to each heat exchanger channels 20
In, the quantity of entrance guiding channel 10 is less than the quantity of heat exchanger channels 20；The entrance face of each heat exchanger channels 20 has gradient,
Angle theta is respectively provided between vertical direction2, the central axis of vertical direction and each heat exchanger channels 20.Preferably, entrance guiding
Channel 10 and heat exchanger channels 20 are arranged on by etching or machining mode on heat exchange plate.Preferably, each heat exchanger channels 20
Entrance face and vertical direction between angle theta2It is zero, adjacent two heat exchanger channels 20 of corresponding same entrance guiding channel 10
Between shunting rib be integrally inwardly indented certain distance δ.
The present invention is directed to the angle thetas whole with heat exchanger channels 20 to giving entrance guiding channel 101In the case of entrance
Diversion design optimizes, as follows by flowing numerical simulation acquired results：
Under conditions of given throat width, several or multiple heat exchanger channels 20 are corresponded to using an entrance guiding channel 10
Mode, the pressure drop of entrance guiding section can be reduced.The fluid in pipeline, which can be flowed, by the way of one-to-many is had
The control of effect prevents fluid from pouring in lower side runner, so as to distribute uniform flow.
In the angle theta that given entrance guiding channel 10 is whole with heat exchanger channels 201, and 20 entrance face of heat exchanger channels is with hanging down
Nogata is to angle theta2In the case of 0, the shunting rib of heat exchanger channels 20 is integrally inwardly indented certain distance δ, can obtain compared with
For uniform assignment of traffic.
For specified criteria, the structure type for establishing different retractions carries out flow simulations.The result of Fig. 2 (A)~Fig. 2 (D)
Show in two shunting rib retraction δ1、δ2When being 0.3mm, most uniform assignment of traffic is shown.Different shunting rib retractions
Amount avoids fluid from excessively concentrating on some heat exchange so that the shunting rib divided fluid stream in place in entrance guiding pipeline 10
Pipeline 20, so as to the assignment of traffic in uniform heat exchange pipeline 20.
The single heat exchanger channels mass flow discrepancy evenness that the present invention uses is defined as follows：
The mass flow discrepancy evenness of various heat exchange channel is drawn as shown in Figure 3.From figure 3, it can be seen that by shunting rib
The change of indent, the mass flow discrepancy evenness of different structure is different.Wherein, the 5th kind of structure shows minimum unevenness
Evenness.Fig. 2 (A)~Fig. 2 (D) and Fig. 3 illustrates that under specified criteria, appropriate heat exchanger channels rib retraction value can make assignment of traffic
Uniformly.
Given 10 angle theta whole with heat exchanger channels 20 of entrance guiding channel1When, increase by 20 entrance face of heat exchanger channels with
Vertical direction angle theta2So that 10 entrance face of entrance guiding channel and the angle of 20 junction of flow-guiding channel more mitigate, can
With the flow in effective uniformly each heat exchanger channels.By Fig. 4 for the flow velocity cloud atlas after structure optimization it is found that in entrance guiding channel
In the case that 10 have certain angle with heat exchanger channels 20, by 20 entrance face of heat exchanger channels and the angle theta of vertical direction2It is appropriate to increase
Add so that the steering of fluid more mitigates, and fin can effectively accept incoming, so as to fulfill evenly distributing for flow.
In the angle theta that given entrance guiding channel 10 is whole with heat exchanger channels 201With heat exchanger channels entrance face with it is vertical
Angular separation θ2In the case of, the indent δ for changing corridor diversion rib can be distributed with uniform flux.It is different indents in table 5
Under analog result.As can be seen that there is mitigation angle theta in heat exchanger channels entrance face and flow-guiding channel junction2When, it is different
Rib indent δ can vary in the assignment of traffic of fluid, so as to the assignment of traffic in uniform tube.
The unevenness of three kinds of structures in Fig. 5 is illustrated in Fig. 6.As can be seen from Figure, structure 4 is not retracted shunting
Rib, the uneven maximum shown, and the unevenness that structure 7 is shown is minimum, there is preferable discharge uniformity.By Fig. 5
With Fig. 6 it is found that in given entrance guiding channel 10 angle theta whole with heat exchanger channels 201With 20 entrance face of heat exchanger channels with
Vertical direction angle theta2In the case of, the situation of assignment of traffic unevenness can be effectively improved by changing the indent δ of shunting rib.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different.The equivalent or simple change that all construction, feature and principles according to described in inventional idea of the present invention are done, is wrapped
It includes in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is done various modifications or additions or is substituted in a similar way, without departing from structure of the invention or surmounts this
Range as defined in the claims, is within the scope of protection of the invention.
Claims (4)
1. a kind of structure at printed circuit board heat exchanger entrance shunting, including several parallel cloth being arranged on same heat exchange plate
The entrance guiding channel and the heat exchanger channels of multiple parallel arrangements put, the entrance guiding channel are arranged on the entrance of heat exchange plate
Portion, the heat exchanger channels are arranged on the main part of heat exchange plate, the entrance guiding channel and heat exchanger channels and are changed close to described
The inlet of hot plate piece crosses, and the angle theta between the center line of the two1More than 90 degree, fluid is from the entrance guiding channel
Heat exchange plate is flowed into, the entrance guiding channel will be in divided fluid stream to each heat exchanger channels, which is characterized in that
The quantity of the entrance guiding channel is less than the quantity of the heat exchanger channels；
The flow-guiding channel and heat exchanger channels are arranged on by etching or machining mode on heat exchange plate.
2. structure at the printed circuit board heat exchanger entrance shunting according to the claims, which is characterized in that corresponding same
Shunting rib between adjacent two heat exchanger channels of one entrance guiding channel is inwardly indented certain distance δ.
3. structure at the printed circuit board heat exchanger entrance shunting according to the claims, which is characterized in that corresponding same
The distance δ that the different shunting ribs of one entrance guiding channel are inwardly indented is different.
4. structure at the printed circuit board heat exchanger entrance shunting according to the claims, which is characterized in that each described
The entrance face of heat exchanger channels, which has, is respectively provided with angle theta between gradient, with vertical direction2, the vertical direction with it is each described
The central axis of heat exchanger channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477707.1A CN108180779B (en) | 2017-12-29 | 2017-12-29 | Structure at a kind of printed circuit board heat exchanger entrance shunting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477707.1A CN108180779B (en) | 2017-12-29 | 2017-12-29 | Structure at a kind of printed circuit board heat exchanger entrance shunting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108180779A true CN108180779A (en) | 2018-06-19 |
| CN108180779B CN108180779B (en) | 2019-11-26 |
Family
ID=62548915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711477707.1A Active CN108180779B (en) | 2017-12-29 | 2017-12-29 | Structure at a kind of printed circuit board heat exchanger entrance shunting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180779B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780595A (en) * | 2020-06-23 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Heat exchange plate and micro-channel heat exchanger |
| CN112361851A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100314088A1 (en) * | 2009-06-11 | 2010-12-16 | Agency For Defense Development | Heat exchanger having micro-channels |
| CN105043144A (en) * | 2015-06-12 | 2015-11-11 | 西安交通大学 | Double-side etching high-temperature and high-pressure printed circuit board heat exchanger |
| CN105180705A (en) * | 2015-07-17 | 2015-12-23 | 航天海鹰(哈尔滨)钛业有限公司 | Sheet for heat exchanger |
| CN106152857A (en) * | 2016-08-26 | 2016-11-23 | 中国船舶重工集团公司第七二五研究所 | A kind of printed circuit board heat exchanger novel heat exchange plate device |
| US20160359211A1 (en) * | 2015-06-04 | 2016-12-08 | Dana Canada Corporation | Heat Exchanger with Regional Flow Distribution for Uniform Cooling of Battery Cells |
| CN106839832A (en) * | 2017-01-23 | 2017-06-13 | 中国科学技术大学 | A kind of bend flow channel heat exchanger in the thermodynamic cycle for supercritical fluid |
| CN106931821A (en) * | 2017-04-06 | 2017-07-07 | 中国科学院工程热物理研究所 | A kind of heat exchanger plates and gas liquid heat exchanger |
| CN107062963A (en) * | 2017-04-27 | 2017-08-18 | 厦门大学 | A kind of alternating expression micro-channel condenser for hair cell regeneration |
| CN107255425A (en) * | 2017-06-27 | 2017-10-17 | 中国船舶重工集团公司第七〇九研究所 | A kind of heat exchanger plates, processing method and heat exchanger |
-
2017
- 2017-12-29 CN CN201711477707.1A patent/CN108180779B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100314088A1 (en) * | 2009-06-11 | 2010-12-16 | Agency For Defense Development | Heat exchanger having micro-channels |
| US20160359211A1 (en) * | 2015-06-04 | 2016-12-08 | Dana Canada Corporation | Heat Exchanger with Regional Flow Distribution for Uniform Cooling of Battery Cells |
| CN105043144A (en) * | 2015-06-12 | 2015-11-11 | 西安交通大学 | Double-side etching high-temperature and high-pressure printed circuit board heat exchanger |
| CN105180705A (en) * | 2015-07-17 | 2015-12-23 | 航天海鹰(哈尔滨)钛业有限公司 | Sheet for heat exchanger |
| CN106152857A (en) * | 2016-08-26 | 2016-11-23 | 中国船舶重工集团公司第七二五研究所 | A kind of printed circuit board heat exchanger novel heat exchange plate device |
| CN106839832A (en) * | 2017-01-23 | 2017-06-13 | 中国科学技术大学 | A kind of bend flow channel heat exchanger in the thermodynamic cycle for supercritical fluid |
| CN106931821A (en) * | 2017-04-06 | 2017-07-07 | 中国科学院工程热物理研究所 | A kind of heat exchanger plates and gas liquid heat exchanger |
| CN107062963A (en) * | 2017-04-27 | 2017-08-18 | 厦门大学 | A kind of alternating expression micro-channel condenser for hair cell regeneration |
| CN107255425A (en) * | 2017-06-27 | 2017-10-17 | 中国船舶重工集团公司第七〇九研究所 | A kind of heat exchanger plates, processing method and heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780595A (en) * | 2020-06-23 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Heat exchange plate and micro-channel heat exchanger |
| CN112361851A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
| CN112361851B (en) * | 2020-10-28 | 2022-05-17 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Printed circuit board heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108180779B (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202382638U (en) | Liquid uniform distribution device for aluminum plate-fin heat exchanger | |
| CN103759474A (en) | Plate heat exchanger | |
| CN108180779B (en) | Structure at a kind of printed circuit board heat exchanger entrance shunting | |
| WO2016138692A1 (en) | Power device parallel cooling structure and electric machine controller applied by same | |
| CN104180703A (en) | Gas and liquid double-phase uniform distributing device | |
| EP3279599A1 (en) | Heat exchanger and multi-split system having same | |
| CN106989629A (en) | The two-directional corrugations type water conservancy diversion end socket and its construction method of a kind of plate-fin heat exchanger | |
| CN105932356A (en) | Multi-channel liquid flow temperature control thermally-conductive plate | |
| CN106370043A (en) | Novel heat exchanger core | |
| CN103217052A (en) | Fluid distributor | |
| CN106197093A (en) | A kind of heat exchanger | |
| CN105466254B (en) | A kind of heat exchanger | |
| CN108519015A (en) | A kind of orifice plate flow distribution structure of low-resistance water conservancy diversion | |
| CN205227936U (en) | Heat exchanger | |
| CN209312971U (en) | A kind of part flow arrangement based on flow-disturbing | |
| CN204286194U (en) | A kind of gas-liquid two-phase even distribution device | |
| CN106403688B (en) | A kind of heat exchanger core | |
| CN206222468U (en) | Air conditioner room unit and air-conditioner | |
| CN203203441U (en) | Three-channel plate type heat exchanger | |
| CN213755477U (en) | Liquid cooling radiator | |
| CN103673729B (en) | Labyrinth distributor | |
| CN106197095A (en) | A kind of heat exchanger | |
| CN106197094A (en) | A kind of heat exchanger | |
| CN113175836A (en) | Spiral bionic micro-channel heat exchanger for cooling electronic device | |
| CN206192164U (en) | New type heat exchanger core that contains ellipse round runner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |