CN114719661B - Enhanced heat transfer element capable of automatically transversely scanning fluid - Google Patents
Enhanced heat transfer element capable of automatically transversely scanning fluid Download PDFInfo
- Publication number
- CN114719661B CN114719661B CN202210462514.3A CN202210462514A CN114719661B CN 114719661 B CN114719661 B CN 114719661B CN 202210462514 A CN202210462514 A CN 202210462514A CN 114719661 B CN114719661 B CN 114719661B
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- heat transfer
- transfer element
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- separator
- fluid outlet
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- 239000012530 fluid Substances 0.000 title claims abstract description 129
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a reinforced heat transfer element capable of automatically and transversely scanning fluid, which comprises a reinforced heat transfer element shell, a first separator and a second separator, wherein a fluid inlet is formed in one end of the reinforced heat transfer element shell, a first fluid outlet and a second fluid outlet are formed in the other end of the reinforced heat transfer element shell, the first separator and the second separator are fixed in the reinforced heat transfer element shell to divide part of an inner cavity of the reinforced heat transfer element shell into a first side flow channel, a middle flow channel and a second side flow channel along the fluid flowing direction, and disturbance flow channels are formed in the first separator and the second separator. The invention can make the fluid swing automatically by simple structure design, thereby eliminating the boundary layer of the heat exchange surface and obtaining the effect of enhancing heat transfer.
Description
Technical Field
The invention relates to a heat transfer element, in particular to an enhanced heat transfer element capable of automatically and transversely scanning fluid, and belongs to the technical field of heat exchange.
Background
In the impact heat exchange process, when fluid at the bottom of the temperature junction impacts the surface of a high-temperature object, heat on the surface of the object can be taken away, so that the effect of cooling the high-temperature component is achieved. However, for the steady-state jet impingement heat exchange of a conventional simple hole target structure, when the jet reaches the target surface, a stable flow boundary layer and a thermal boundary layer are formed near the target surface due to the stable flow of the fluid, and the stable boundary layer reduces the effect of the impingement heat exchange.
Therefore, a brand new heat transfer element is needed to be designed so as to break the flow boundary layer and the thermal boundary layer of the stable jet flow and improve the impact heat exchange effect.
Disclosure of Invention
The invention aims to solve the technical problem of providing an enhanced heat transfer element capable of automatically and transversely scanning fluid, breaking a flow boundary layer and a thermal boundary layer of stable jet flow and improving the impact heat exchange effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
an enhanced heat transfer element for automatically scanning a fluid laterally, comprising: the heat transfer device comprises a reinforced heat transfer element shell, a first separator and a second separator, wherein a fluid inlet is formed in one end of the reinforced heat transfer element shell, a first fluid outlet and a second fluid outlet are formed in the other end of the reinforced heat transfer element shell, the first separator and the second separator are fixed in the reinforced heat transfer element shell, a part of inner cavity of the reinforced heat transfer element shell is divided into a first side surface flow channel, a middle flow channel and a second side surface flow channel along the fluid flowing direction, and disturbance flow channels are formed in the first separator and the second separator.
Further, the enhanced heat transfer element housing has a tubular structure, and fluid flows from the fluid inlet to the first fluid outlet and the second fluid outlet along the axial direction of the enhanced heat transfer element.
Further, the cross section of the fluid inlet is smaller than that of the main body part of the reinforced heat transfer element shell, and the fluid inlet and the main body part of the reinforced heat transfer element shell are in transitional connection through a gradually-expanding pipe.
Further, the first fluid outlet and the second fluid outlet are symmetrically distributed at the other end of the reinforced heat transfer element shell, and the first fluid outlet and the second fluid outlet are of a bell mouth structure expanding towards two sides.
Further, the first separator and the second separator are symmetrically arranged at two sides in the reinforced heat transfer element shell, the first side flow channel corresponds to the first fluid outlet, the second side flow channel corresponds to the second fluid outlet, and the middle flow channel corresponds to the end panel of the reinforced heat transfer element shell between the first fluid outlet and the second fluid outlet.
Further, the first and second separators are disposed proximate the first and second fluid outlets with a gap therebetween.
Further, one end of the first separator and one end of the second separator, which are close to the fluid inlet, are provided with triangular flow guiding structures.
Further, inclined surface diversion structures are arranged at one ends of the first separator and the second separator, which are close to the first fluid outlet and the second fluid outlet, and inclined surfaces of the inclined surface diversion structures incline to two sides of the reinforced heat transfer element shell.
Further, the disturbance flow passage penetrates through both side surfaces of the first separator or the second separator, the disturbance flow passage is arranged obliquely to the axial direction of the enhanced heat transfer element housing, and the disturbance flow passage is inclined toward the middle of the enhanced heat transfer element housing along the fluid flow direction.
Further, the disturbance flow channels on the first separator and the second separator are in one-to-one correspondence and are symmetrically distributed.
Compared with the prior art, the invention has the following advantages and effects:
1. according to the reinforced heat transfer element capable of automatically and transversely scanning fluid, the fluid is divided into three flows after entering the heat exchange element, wherein the fluid of the first side surface flow channel and the second side surface flow channel can enter the middle flow channel respectively through the disturbance flow channels on the first separator and the second separator, the fluid in the middle flow channel is caused to swing left and right due to the uncertainty of the fluid flow, the first side surface flow channel and the second side surface flow channel are further caused to form left and right swing at the flow channel outlet, the fluid swing generates unsteady jet flow movement, and the fluid movement back and forth weakens the flow boundary layer and the thermal boundary layer of the jet flow at the near target surface, so that the reinforced heat exchange effect is achieved;
2. the invention has simple structure, realizes the formation of fluid swinging left and right in the heat transfer element only through the two separators, does not need to arrange an additional turbulence pipeline, does not need to be matched with a complex external connecting pipeline structure, greatly reduces the cost of the heat transfer element, and is convenient for popularization and application.
Drawings
FIG. 1 is a schematic illustration of an enhanced heat transfer element for automatically laterally scanning a fluid in accordance with the present invention.
FIG. 2 is a cross-sectional view of an enhanced heat transfer element for automatically laterally scanning a fluid in accordance with the present invention.
FIG. 3 is a view of the use of an enhanced heat transfer element for automatically scanning fluid laterally in accordance with the present invention.
Detailed Description
In order to explain in detail the technical solutions adopted by the present invention to achieve the predetermined technical purposes, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that technical means or technical features in the embodiments of the present invention may be replaced without inventive effort, and the present invention will be described in detail below with reference to the accompanying drawings in combination with the embodiments.
As shown in fig. 1 and 2, the reinforced heat transfer element capable of automatically and transversely scanning fluid of the present invention comprises a reinforced heat transfer element housing 1, a first separator 2 and a second separator 3, wherein one end of the reinforced heat transfer element housing 1 is provided with a fluid inlet 4, the other end of the reinforced heat transfer element housing 1 is provided with a first fluid outlet 5 and a second fluid outlet 6, the first separator 2 and the second separator 3 are fixed in the reinforced heat transfer element housing 1 to divide a part of an inner cavity of the reinforced heat transfer housing 1 into a first side flow channel 7, a middle flow channel 8 and a second side flow channel 9 along the fluid flow direction, and the first separator 2 and the second separator 3 are also provided with disturbance flow channels 10.
Specifically, the heat transfer enhancement element housing 1 has a tubular structure, and in this embodiment, a square tube structure having a rectangular cross section is used, and of course, a tube structure having a circular or other cross-sectional shape may be used as needed. Fluid flows along the axial direction of the enhanced heat transfer element housing 1 from the fluid inlet 4 to the first fluid outlet 5 and the second fluid outlet 6.
The cross section of the fluid inlet 4 is smaller than that of the main body part of the reinforced heat transfer element housing 1, and the fluid inlet 4 is in transitional connection with the main body part of the reinforced heat transfer element housing 1 through a divergent pipe 11. The fluid enters the enhanced heat transfer element housing 1 from the fluid inlet 4 and is gradually distributed in the diverging tube 11 into the inner cavity of the entire enhanced heat transfer element housing 1, and then is divided into three after passing through the first separator 2 and the third separator 3.
The first fluid outlet 5 and the second fluid outlet 6 are symmetrically distributed at the other end of the enhanced heat transfer element housing 1, and the symmetrical structure ensures that the probability that the fluid in the first side flow channel 7 and the second side flow channel 9 enters the middle flow channel 8 through the disturbance flow channel 10 is the same. The first fluid outlet 5 and the second fluid outlet 6 are bell mouth structures which expand to two sides, and the fluid is scattered in a fan shape with a certain angle after exiting from the fluid outlets.
The first separator 2 and the second separator 3 are symmetrically disposed at both sides in the enhanced heat transfer element housing 1, specifically, through holes matched with the first separator 2 and the third separator 3 are opened on the upper side and the lower side of the enhanced heat transfer element housing 1, and the upper ends and the lower ends of the first separator 2 and the second separator 3 are respectively inserted into the through holes of the upper side and the lower side of the enhanced heat transfer element housing 1 and fixed. The first side flow channels 7 are positioned to correspond to the first fluid outlets 5, the second side flow channels 9 are positioned to correspond to the second fluid outlets 6, and the intermediate flow channels 8 correspond to the end plate positions of the enhanced heat transfer element housing 1 between the first fluid outlets 5 and the second fluid outlets 6. Of the three streams, the fluid in the first side channel 7 directly flows out of the first fluid outlet 5, the fluid in the second side channel 9 directly flows out of the second fluid outlet 6, and the fluid in the middle channel 8 flows out of the first fluid outlet 5 and the second fluid outlet 6 at intervals.
The first and second separators 2, 3 are disposed adjacent to the first and second fluid outlets 5, 6 with gaps between the first and second separators 2, 3 and the first and second fluid outlets 5, 6 so that fluid of the intermediate flow passage 8 can flow from the first and second fluid outlets 5, 6 along the gaps at intervals.
The first separator 2 and the second separator 3 are provided with triangular flow guiding structures 12 at one end near the fluid inlet 4, which guide the fluid into the first side flow channel 7, the middle flow channel 8 and the second side flow channel 9, respectively. The first separator 2 and the second separator 3 are provided with inclined surface guide structures 13 near one ends of the first fluid outlet 5 and the second fluid outlet 6, and inclined surfaces of the inclined surface guide structures 13 incline to two sides of the enhanced heat transfer element housing 1, so that the fluid of the middle flow channel 8 can flow out from the first fluid outlet 5 and the second fluid outlet 6 at intervals.
The disturbance flow passages 10 penetrate through both side surfaces of the first separator 2 or the second separator 3, the disturbance flow passages 10 are disposed obliquely to the axial direction of the enhanced heat transfer element housing 1, and the disturbance flow passages 10 are inclined toward the middle of the enhanced heat transfer element housing 1 along the fluid flow direction. The inclined disturbance flow channel 10 can facilitate the flow of the fluid of the first side flow channel 7 and the second side flow channel 9 into the intermediate flow channel 8. The disturbance flow passages 10 on the first separator 2 and the second separator 3 are in one-to-one correspondence and are symmetrically distributed. In this embodiment, the first separator 2 and the second separator 3 are respectively in two-piece type splicing structures, and after the two splicing structures are fixed in the enhanced heat transfer element housing 1, the disturbance flow channel 10 is formed by the gaps between the splicing structures.
As shown in fig. 3, the working principle of the enhanced heat transfer element capable of automatically and laterally scanning fluid of the present invention is as follows: the fluid enters the heat exchange element and is divided into three flows, wherein the fluid of the first side flow channel and the second side flow channel respectively enters the middle flow channel through the disturbance flow channels on the first separator and the second separator, the fluid in the middle flow channel swings left and right due to the uncertainty of the fluid flow, the first side flow channel and the second side flow channel form left and right swinging at the outlet of the flow channel, the fluid swinging generates unsteady jet flow movement, the back and forth fluid movement weakens the flow boundary layer and the thermal boundary layer of the jet flow at the near target surface, and therefore the heat exchange enhancement function is achieved.
The present invention is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other embodiments, such as those described above, of making various modifications and equivalents will fall within the spirit and scope of the present invention.
Claims (8)
1. An enhanced heat transfer element for automatically scanning a fluid laterally, comprising: the heat transfer device comprises a reinforced heat transfer element shell, a first separator and a second separator, wherein a fluid inlet is formed in one end of the reinforced heat transfer element shell, a first fluid outlet and a second fluid outlet are formed in the other end of the reinforced heat transfer element shell, the first separator and the second separator are fixed in the reinforced heat transfer element shell to divide a part of inner cavity of the reinforced heat transfer element shell into a first side surface flow channel, a middle flow channel and a second side surface flow channel along the fluid flowing direction, and disturbance flow channels are formed in the first separator and the second separator; the first separator and the second separator are symmetrically arranged at two sides in the reinforced heat transfer element shell, the position of the first side flow channel corresponds to the first fluid outlet, the position of the second side flow channel corresponds to the second fluid outlet, and the middle flow channel corresponds to the end panel position of the reinforced heat transfer element shell between the first fluid outlet and the second fluid outlet; the disturbance flow passage penetrates through two side surfaces of the first separator or the second separator, is inclined to the axial direction of the reinforced heat transfer element shell, and is inclined to the middle of the reinforced heat transfer element shell along the fluid flow direction.
2. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 1, wherein: the enhanced heat transfer element housing is of tubular construction, and fluid flows along the axial direction of the enhanced heat transfer element from the fluid inlet to the first fluid outlet and the second fluid outlet.
3. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 2, wherein: the section of the fluid inlet is smaller than that of the main body part of the reinforced heat transfer element shell, and the fluid inlet is in transitional connection with the main body part of the reinforced heat transfer element shell through a gradually-enlarged pipe.
4. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 2, wherein: the first fluid outlet and the second fluid outlet are symmetrically distributed at the other end of the reinforced heat transfer element shell, and the first fluid outlet and the second fluid outlet are both in a bell mouth structure expanding towards two sides.
5. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 1, wherein: the first and second separators are disposed proximate the first and second fluid outlets with a gap therebetween.
6. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 1, wherein: and one ends of the first separator and the second separator, which are close to the fluid inlet, are provided with triangular flow guide structures.
7. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 1, wherein: and inclined surface diversion structures are arranged at one ends of the first separator and the second separator, which are close to the first fluid outlet and the second fluid outlet, and inclined surfaces of the inclined surface diversion structures incline to two sides of the reinforced heat transfer element shell.
8. An enhanced heat transfer element for automatically scanning a fluid laterally as recited in claim 1, wherein: the disturbance flow channels on the first separator and the second separator are in one-to-one correspondence and are symmetrically distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462514.3A CN114719661B (en) | 2022-04-29 | 2022-04-29 | Enhanced heat transfer element capable of automatically transversely scanning fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462514.3A CN114719661B (en) | 2022-04-29 | 2022-04-29 | Enhanced heat transfer element capable of automatically transversely scanning fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114719661A CN114719661A (en) | 2022-07-08 |
| CN114719661B true CN114719661B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210462514.3A Active CN114719661B (en) | 2022-04-29 | 2022-04-29 | Enhanced heat transfer element capable of automatically transversely scanning fluid |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670462A (en) * | 2005-04-22 | 2005-09-21 | 北京工业大学 | Synergic type reinforced heat exchange surface |
| WO2017149208A1 (en) * | 2016-03-03 | 2017-09-08 | Nemo Trevose Park | Heat exchanger for fluid |
| CN107567247A (en) * | 2017-09-07 | 2018-01-09 | 太原理工大学 | A kind of dissipation from electronic devices method that array jetting, solid-liquid phase change are coupled |
| CN108955293A (en) * | 2018-08-20 | 2018-12-07 | 李茂华 | Novel and multifunctional three-dimensional ribbed pipe heat exchange condensation fuel supplement device |
| CN208282666U (en) * | 2018-05-18 | 2018-12-25 | 汕头华兴冶金设备股份有限公司 | Copper cools down equipment |
| DE102017008165A1 (en) * | 2017-08-29 | 2019-02-28 | Daimler Ag | Radiator for cooling at least one component, in particular a motor vehicle |
-
2022
- 2022-04-29 CN CN202210462514.3A patent/CN114719661B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670462A (en) * | 2005-04-22 | 2005-09-21 | 北京工业大学 | Synergic type reinforced heat exchange surface |
| WO2017149208A1 (en) * | 2016-03-03 | 2017-09-08 | Nemo Trevose Park | Heat exchanger for fluid |
| DE102017008165A1 (en) * | 2017-08-29 | 2019-02-28 | Daimler Ag | Radiator for cooling at least one component, in particular a motor vehicle |
| CN107567247A (en) * | 2017-09-07 | 2018-01-09 | 太原理工大学 | A kind of dissipation from electronic devices method that array jetting, solid-liquid phase change are coupled |
| CN208282666U (en) * | 2018-05-18 | 2018-12-25 | 汕头华兴冶金设备股份有限公司 | Copper cools down equipment |
| CN108955293A (en) * | 2018-08-20 | 2018-12-07 | 李茂华 | Novel and multifunctional three-dimensional ribbed pipe heat exchange condensation fuel supplement device |
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| Publication number | Publication date |
|---|---|
| CN114719661A (en) | 2022-07-08 |
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