CN112985151B - Compact type efficient heat exchanger structure - Google Patents
Compact type efficient heat exchanger structure Download PDFInfo
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- CN112985151B CN112985151B CN202110267735.0A CN202110267735A CN112985151B CN 112985151 B CN112985151 B CN 112985151B CN 202110267735 A CN202110267735 A CN 202110267735A CN 112985151 B CN112985151 B CN 112985151B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- 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
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0021—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for aircrafts or cosmonautics
Abstract
The invention discloses a compact high-efficiency heat exchanger structure, which comprises a heat exchanger shell, an internal flow passage structure and external pin fins, wherein the heat exchanger shell is provided with a plurality of heat exchange holes; the heat exchanger shell is hollow structure, includes: the device comprises a cuboid cavity, an inlet bending section, an outlet bending section, an inlet flow guide section and an outlet flow guide section; two opposite side surfaces of the cuboid cavity are respectively connected with the inlet guide section and the outlet guide section; the inlet guide section is connected with the inlet bending section; the outlet flow guide section is connected with the outlet bending section; the internal flow channel structure comprises a flow deflector and a flow disturbing column; the flow deflectors are uniformly distributed in the inlet flow guide section and the outlet flow guide section, and the turbulence columns are distributed in the rectangular cavity in a staggered manner; the external needle ribs are arranged outside the upper plate and the lower plate of the cuboid cavity in a staggered mode. The turbulent flow column and pin fin structure and the combination mode thereof have the advantages that the heat exchange capacity of the heat exchanger is enhanced, and the flowing loss of air can be reduced.
Description
Technical Field
The invention belongs to the field of design of aero-engine heat exchangers, and mainly relates to a compact efficient heat exchanger structure.
Background
The development of the aero-engine is always restricted by the high temperature problem of the hot end part of the aero-engine, and the performance of the aero-engine can be improved by a novel high temperature resistant material and an efficient cooling mode.
The heat exchanger of the aircraft engine can reduce the temperature of the bleed air and improve the quality of the cooling air. The heat exchanger mainly utilizes bypass air as a cold source to exchange heat with the high-pressure compressor bleed air, so that the purpose of reducing the temperature of cooling air is achieved, and turbine blades are cooled better.
The bypass ratio of the military aircraft engine is gradually reduced, the bypass height is gradually reduced, most heat exchangers researched at home and abroad are higher in height, the windward area is larger, and the pressure loss of the bypass is larger, so that the overall performance of the engine is influenced. The invention provides a compact high-efficiency heat exchanger structure.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a compact high-efficiency heat exchanger structure mainly aiming at the problem that the bypass ratio of an aero-engine is smaller and smaller.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
a compact high-efficiency heat exchanger structure comprises a heat exchanger shell, an internal flow passage structure and external pin fins; the heat exchanger shell is hollow structure, includes: the device comprises a cuboid cavity, an inlet bending section, an outlet bending section, an inlet flow guide section and an outlet flow guide section; the top surface of the cuboid cavity is an upper plate, the bottom surface of the cuboid cavity is a lower plate, and two opposite side surfaces of the cuboid cavity are respectively connected with the inlet guide section and the outlet guide section; the other two opposite side surfaces are of closed structures, and the length direction of the closed structures is the flowing direction of the outside culvert cold air; the inlet guide section is connected with the inlet bending section; the outlet flow guide section is connected with the outlet bending section;
the internal flow channel structure comprises a flow deflector and a flow disturbing column; the flow deflectors are uniformly distributed in the inlet flow guide section and the outlet flow guide section, and the turbulence columns are distributed in the rectangular cavity in a staggered manner;
the external needle ribs are arranged outside the upper plate and the lower plate of the cuboid cavity in a staggered mode.
Further, the inlet guide section and the outlet guide section are hollow triangular prisms, the heights of the triangular prisms are consistent with the height of the cuboid cavity, the cross sections of the triangular prisms are right-angled triangles with acute angles of 60 degrees, and the triangular prisms are composed of upper and lower bottom surfaces and one side surface opposite to the acute angles of 60 degrees;
two sides of the cuboid cavity are respectively connected with one side face of the inlet flow guide section opposite to the right angle of the outlet flow guide section.
Furthermore, the inlet bending section and the outlet bending section are a hollow 90-degree sector and cuboid tube combination, the radius of the section of the 90-degree sector is equal to the height of the cuboid cavity, and the length of the sector is equal to the length of a right-angle side opposite to a 30-degree acute angle in the cross section of the triangular prism;
in the inlet bending section, one of right-angle surfaces adjacent to the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the inlet flow guide section, and the other side surface is connected with the cuboid pipe to serve as an inlet of the heat exchanger;
in the outlet bending section, one of right-angle surfaces adjacent to the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the outlet flow guide section, and the other side surface is connected with the rectangular pipe to serve as the outlet of the heat exchanger.
Furthermore, the high-efficiency heat exchanger structure is made of GH4169 nickel-based alloy, and the thickness of the heat exchanger shell material is 1 mm.
Furthermore, the upper end surface and the lower end surface of the flow disturbing column are in a fusiform shape, and the fusiform shape of the end surfaces consists of 4 pieces with radius r1The angle of each arc is 17 degrees, and each arc is symmetrically distributed along the central axis; the two end surfaces have the same shape and size, the middle section of the turbulence column has the same shape and size as the two end surfaces and is in proportion to the two end surfaces, and the radius of each circular arc forming the middle section is r2Wherein r is1∶r21: 0.25-0.5; the upper end surface to the middle section and the lower end surface of the turbulence column are all designed in a linear smooth mode, and the centers of the upper end surface, the lower end surface and the middle section are on the same straight line.
Further, the radius r of the circular arc1The range of (A) is 15mm to 18 mm.
Further, the fusiform cross section of the turbulence column comprises a long axis and a short axis, wherein the length of the long axis is 2r1sin17 ° with a minor axis length of 2r1(1-sin73 °); the distance L between the long axes of the turbulence columns is r1sin17 DEG, the minor axis spacing S being 4r1sin17 deg., and 18r1 sin17°＜x，16r1 sin17°<y, wherein x is the length of the cuboid cavity and y is the width of the cuboid cavity;
the long axes of the turbulence columns are parallel to the flowing direction of the outside culvert cold air and are arranged in the cuboid cavity in a staggered mode according to the rule of 4-5-4, and the total number of the turbulence columns is 67.
Furthermore, the guide vanes are rectangular, are parallel to one side surface of the inlet guide section and the outlet guide section opposite to the acute angle of 60 degrees, are vertically distributed in the guide section at equal intervals, and are sequentially increased in length and form an included angle of 60 degrees with the long axis of the turbulence column; the length of each flow deflector is 0.096-0.769 y, the interval of the flow deflectors is 0.071-0.056 y, the number of the flow deflectors is 6-8, and y is the width of the inner cavity of the cuboid cavity.
Furthermore, the height of the flow deflector is equal to that of the turbulence column and is consistent with that of the cavity of the cuboid.
Furthermore, the external pin fin is of a porous structure based on a regular tetrahedron, six edges of the regular tetrahedron are used as pin fins, the length of the edge of the regular tetrahedron is 4 mm-8 mm, the diameter of the edge section is 0.5 mm-1 mm, one edge of the regular tetrahedron is placed against the flow direction of cold air of a culvert, the transverse interval of the pin fin is a, and the flow direction interval is a
The needle fins are longitudinally distributed
In the row and in the transverse direction
Are arranged at the outer sides of the upper plate and the lower plate in a staggered way;
wherein a is the length of the edge of the regular tetrahedron, x is the length of the inner cavity of the rectangular body cavity, y is the width of the inner cavity of the rectangular body cavity, and [ ] is a rounding symbol.
Compared with the prior art, the technical scheme adopted by the invention has the following beneficial effects:
(1) the heat exchanger has lower overall height, and is more suitable for military aircraft engines with smaller ducts;
(2) the fusiform turbulence column conforms to a streamline design, not only is the heat exchange enhanced, but also the smaller flow loss is considered while the turbulence is increased;
(3) the multi-hole pin fin based on the regular tetrahedron increases the heat exchange area, and meanwhile, the pore channel is tortuous and changeable, so that the strong dispersion effect is achieved, the fluid boundary layer on the wall surface is thinned, and disturbance is generated in the layer.
Drawings
FIG. 1 is a schematic view of the overall external structure of the heat exchanger of the present invention;
FIG. 2 is a top view of the overall external structure of the heat exchanger of the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention without the external pin fin;
FIG. 4 is an overall top plan view of the present invention without the external pin fin;
FIG. 5 is a schematic view of a baffle of the present invention;
FIG. 6 is a schematic view of a spoiler column according to the present invention;
fig. 7 is a schematic view of the outer pin fin of the present invention.
Description of reference numerals: 1-heat exchanger inlet, 2-heat exchanger outlet, 3-inlet bending section, 4-inlet guide section, 5-outlet guide section, 6-outlet bending section, 7-upper plate, 8-lower plate, 9-outer culvert cold air flowing direction, 10-turbulence column, 11-guide vane and 12-pin fin.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A compact, high efficiency heat exchanger structure includes a heat exchanger housing, an internal flow passage structure and external pin fins 12; the heat exchanger shell is hollow structure, includes: the device comprises a cuboid cavity, an inlet bent section 3, an outlet bent section 6, an inlet guide section 4 and an outlet guide section 5; the top surface of the cuboid cavity is an upper plate 7, the bottom surface of the cuboid cavity is a lower plate 8, and two opposite side surfaces of the cuboid cavity are respectively connected with the inlet guide section 4 and the outlet guide section 5; the other two opposite side surfaces are of closed structures, and the length direction of the closed structures is the flowing direction 9 of the outside culvert cold air; the inlet guide section 4 is connected with the inlet bending section 3; the outlet guide section 5 is connected with the outlet bending section 6; the internal flow channel structure comprises a flow deflector 11 and a flow disturbing column 10; the flow deflectors 11 are uniformly distributed in the inlet flow guide section 4 and the outlet flow guide section 5, and the flow disturbing columns 10 are distributed in the rectangular cavity in a staggered manner; the external pin fins 12 are arranged outside the upper plate 7 and the lower plate 8 of the rectangular cavity in a staggered manner.
The inlet guide section 4 and the outlet guide section 5 are hollow triangular prisms, the heights of the triangular prisms are consistent with the height of the cuboid cavity, the cross sections of the triangular prisms are right-angled triangles with acute angles of 60 degrees, and the triangular prisms are composed of upper and lower bottom surfaces and one side surface opposite to the acute angles of 60 degrees;
two sides of the cuboid cavity are respectively connected with one side of the inlet diversion section 4 opposite to one side of the outlet diversion section 5 in a right angle.
The inlet bending section 3 and the outlet bending section 6 are a hollow 90-degree sector and cuboid tube combination, the radius of the section of the 90-degree sector is equal to the height of the cuboid cavity, and the length of the sector is equal to the length of a right-angle side opposite to a 30-degree acute angle in the cross section of the triangular prism;
in the inlet bending section 3, one of the adjacent right-angle surfaces of the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the inlet flow guide section 4, and the other side surface is connected with a cuboid pipe to serve as a heat exchanger inlet 1;
in the outlet bending section 6, one of the adjacent right-angle surfaces of the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the outlet flow guide section 5, and the other side surface is connected with the cuboid pipe to be used as the outlet 2 of the heat exchanger.
As shown in figure 1, the structure of the whole external part of the heat exchanger is schematically shown, the direction of the air introduced by the high-pressure compressor is from right to left, cooling air firstly enters the heat exchanger from an inlet 1 of the heat exchanger and then passes through an inlet bent section 3, the flow direction of the cooling air is adjusted by a guide vane at an inlet guide section 4, and the flow direction forms an included angle of 60 degrees with the axis of a turbulence column 10. Then passes through a turbulence column between an upper plate 7 and a lower plate 8 of the heat exchanger and then passes through the outlet guide section 5 and the outlet bend section 6. The upper plate and the lower plate of the heat exchanger are rectangular, the length x is 100mm, and the width y is 80 mm. The flowing direction 9 of the culvert cold air is the long direction. The height of the outer side of the heat exchanger is 12mm, the material of the heat exchanger is GH4169 nickel-based alloy, and the thickness of the shell material is 1 mm.
As shown in fig. 3, the flow deflectors 11 are rectangular, parallel to one side surface of the inlet guide section 4 opposite to the 60 ° acute angle of the outlet guide section 5, and vertically distributed in the guide section at equal intervals, and the lengths of the flow deflectors 11 are sequentially increased and form an included angle of 60 ° with the long axis of the turbulence column 10; as shown in fig. 5, the length of each guide vane 11 is 11 mm-60 mm, and the number of the guide vanes 11 is 8. The spacing distance between each guide vane is 3 mm. The height of the inner cavity of the heat exchanger is 10mm, and the heights of the flow deflector 11 and the flow disturbing column 10 are 10 mm.
As shown in fig. 6, the upper end surface and the lower end surface of the turbulence column 10 are in the shape of a shuttle with the same shape, and the shuttle shape of the end surface is formed by 4 radiuses r1Is formed by 17mm circular arcs, the angle of each circular arc is 17 degrees, and each circular arc is symmetrically distributed along the central shaft. The fusiform of the middle section is reduced in equal proportion according to the size of the fusiform of the end surface, and the radius of each circular arc forming the middle section is r2，r1∶r24: 1. The upper end surface to the middle section and then to the lower end surface of the turbulence column 10 are all designed in a linear smooth mode, and the centers of the upper end surface, the lower end surface and the middle section are on the same straight line. As shown in fig. 4, the fusiform cross section of the turbulence column 10 comprises a long axis and a short axis, wherein the length of the long axis is 10mm, and the length of the short axis is 1.5 mm; the distance L between the long axes of the turbulence columns 10 is 5mm, and the distance S between the short axes is 20 mm; the long axes of the turbulence columns 10 are parallel to the flowing direction 9 of the outside culvert cold air and are arranged in the cuboid cavity in a staggered mode according to the rule of 4-5-4, and the total number of the turbulence columns is 67.
The heat exchanger inlet 1 is a rectangular inlet 38mm long and 10mm wide. As shown in fig. 1 and 2, the outer sides of the upper plate 7 and the lower plate 8 of the heat exchanger are pin fins based on a regular tetrahedron with similar porosity, the pin fins are shaped as shown in fig. 7, and the pin fins are composed of 6 edges of the regular tetrahedron, the length of the regular tetrahedron is 5mm, and the diameter of the edges is 0.5 mm. The air-conditioner is placed facing to the flowing direction 9 of the outer culvert cold air, the transverse spacing of the outer pin fins 12 is 5mm, the flowing direction spacing is 4.33mm, 23 rows of pin fins 12 are longitudinally distributed and are transversely distributed on the outer sides of the upper plate 7 and the lower plate 8 in a staggered mode according to 16-15-16, and the air-conditioner is shown in figure 2.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. A compact, high efficiency heat exchanger structure comprising a heat exchanger housing, an internal flow passage structure and external pin fins (12);
the heat exchanger shell is hollow structure, includes: the device comprises a cuboid cavity, an inlet bending section (3), an outlet bending section (6), an inlet guide flow section (4) and an outlet guide flow section (5); the top surface of the cuboid cavity is an upper plate (7), the bottom surface of the cuboid cavity is a lower plate (8), and two opposite side surfaces of the cuboid cavity are respectively connected with the inlet flow guide section (4) and the outlet flow guide section (5); the other two opposite side surfaces are of closed structures, and the length direction of the side surfaces is the flowing direction (9) of the outside culvert cold air; the inlet guide section (4) is connected with the inlet bending section (3); the outlet guide section (5) is connected with the outlet bending section (6);
the inlet guide section (4) and the outlet guide section (5) are hollow triangular prisms, the heights of the triangular prisms are consistent with the height of the cuboid cavity, the cross sections of the triangular prisms are right-angled triangles with acute angles of 60 degrees, and the triangular prisms are composed of upper and lower bottom surfaces and one side surface opposite to the acute angles of 60 degrees; two side surfaces of the cuboid cavity are respectively connected with one side surface opposite to a right angle in the inlet guide section (4) and one side surface opposite to a right angle in the outlet guide section (5);
the inlet bending section (3) and the outlet bending section (6) are a hollow 90-degree sector and cuboid tube combination, the radius of the section of the 90-degree sector is equal to the height of the cuboid cavity, and the length of the sector is equal to the length of a right-angle side opposite to a 30-degree acute angle in the cross section of the triangular prism; in the inlet bending section (3), one of the adjacent right-angle surfaces of the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the inlet flow guide section (4), and the other side surface is connected with the cuboid pipe to serve as a heat exchanger inlet (1); in the outlet bending section (6), one of the adjacent right-angle surfaces of the fan-shaped bodies is connected with one side surface opposite to the acute angle of 30 degrees in the outlet flow guide section (5), and the other side surface is connected with the cuboid pipe to be used as a heat exchanger outlet (2);
the internal flow channel structure comprises a flow deflector (11) and a flow disturbing column (10); the flow deflectors (11) are uniformly distributed in the inlet flow guide section (4) and the outlet flow guide section (5), and the flow disturbing columns (10) are distributed in the rectangular cavity in a staggered manner;
the upper end surface and the lower end surface of the flow disturbing column (10) are in a fusiform shape, and the fusiform shape of the end surfaces consists of 4 pieces of pipe with radius r1The angle of each arc is 17 degrees, and each arc is symmetrically distributed along the central axis; the two end surfaces have the same shape and size, the middle section of the turbulence column (10) has the same shape and size as the two end surfaces and is proportional to the two end surfaces, and the radius of each circular arc forming the middle section is r2Wherein r is1∶r2=1: 0.25-0.5; the upper end surface to the middle section and the lower end surface of the turbulence column (10) are all designed in a linear smooth mode, and the centers of the upper end surface, the lower end surface and the middle section are on the same straight line;
the external pin fins (12) are arranged outside the upper plate (7) and the lower plate (8) of the cuboid cavity in a staggered mode.
2. The structure of claim 1, wherein the material of the structure is GH4169 nickel-based alloy, and the thickness of the material of the heat exchanger casing is 1 mm.
3. A high efficiency heat exchanger structure as claimed in claim 1, characterized in that the radius r of the circular arc is1The range of (A) is 15mm to 18 mm.
4. A high efficiency heat exchanger structure as claimed in claim 1, characterized in that the fusiform cross-section of the turbulence column (10) comprises a major axis and a minor axis, wherein the major axis is of length 2r1sin17 deg., minor axis length of 2r1(1-sin73 °); the distance L between the long axes of the turbulence columns (10) is r1sin17 DEG, the minor axis spacing S being 4r1sin17 deg., and 18r1 sin17°＜ x，16 r1 sin17°<y, wherein x is the length of the cuboid cavity and y is the width of the cuboid cavity;
the long axes of the turbulence columns (10) are parallel to the flow direction (9) of the outside culvert cold air and are arranged in the cuboid cavity in a staggered mode according to the rule of 4-5-4, and the total number of the turbulence columns is 67.
5. The structure of the high-efficiency heat exchanger according to claim 1, wherein the flow deflectors (11) are rectangular, parallel to one side surface of the inlet flow guide section (4) opposite to the 60-degree acute angle of the outlet flow guide section (5), and vertically distributed in the flow guide section at equal intervals, and the lengths of the flow deflectors (11) are sequentially increased and form an included angle of 60 degrees with the long axis of the turbulent flow column (10); the length of the flow deflectors (11) is 0.096 y-0.769 y, the interval of the flow deflectors (11) is 0.071 y-0.056 y, the number of the flow deflectors (11) is 6-8, and y is the width of the inner cavity of the cuboid cavity.
6. The structure of a high efficiency heat exchanger according to claim 1, wherein the height of the flow deflector (11) is equal to the height of the turbulence column (10) and is consistent with the height of the rectangular parallelepiped cavity.
7. The structure of high efficiency heat exchanger according to claim 1, characterized in that the external pin fins (12) are based on a regular tetrahedron, six edges of the regular tetrahedron are used as pin fins (12), the length of the regular tetrahedron is 4 mm-8 mm, the diameter of the edge section is 0.5 mm-1 mm, one edge of the regular tetrahedron is placed against the cold air flowing direction (9) of the culvert, the pin fins (12) have a transverse pitch a, and the flowing direction pitch is a
；
The needle fins (12) are longitudinally distributed
In the row and in the transverse direction
Are regularly and alternately arranged on the upper plate (7) And the outside of the lower plate (8);
wherein a is the length of the edge of the regular tetrahedron, x is the length of the inner cavity of the rectangular body cavity, y is the width of the inner cavity of the rectangular body cavity, and [ ] is a rounding symbol.
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| CN202110267735.0A CN112985151B (en) | 2021-03-12 | 2021-03-12 | Compact type efficient heat exchanger structure |
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| US20220297499A1 (en) * | 2021-03-16 | 2022-09-22 | Denso International America, Inc. | Multi-zone hvac |
| CN113834368B (en) * | 2021-10-22 | 2023-07-25 | 河北工业大学 | Three-dimensional variable cross-section vortex column structure, heat exchange plate and heat exchanger core |
| CN116007417A (en) * | 2022-03-18 | 2023-04-25 | 山东大学 | Fusiform array fin evaporator and loop heat pipe thereof |
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| JP4606786B2 (en) * | 2004-06-23 | 2011-01-05 | 株式会社ティラド | Multi-fluid heat exchanger |
| CN101949367B (en) * | 2010-09-26 | 2012-08-22 | 浙江银轮机械股份有限公司 | Pipe belt type wind turbine air cooler |
| CN203722976U (en) * | 2013-11-27 | 2014-07-16 | 阳光电源股份有限公司 | Heat-dissipation device and electronic equipment therewith |
| CN205156711U (en) * | 2015-11-12 | 2016-04-13 | 浙江澳可盛制冷设备有限公司 | Heat exchanger runner unit |
| CN208338138U (en) * | 2018-02-08 | 2019-01-04 | 郑州宇通客车股份有限公司 | Vehicle and its motor control assembly, electric machine controller cooling cabinet |
| CN110671961A (en) * | 2019-11-06 | 2020-01-10 | 江苏科技大学 | Multi-dimensional flow guide synergistic fin plate bundle based on additive manufacturing and heat exchanger thereof |
| CN111678364A (en) * | 2020-06-30 | 2020-09-18 | 贵州民族大学 | Micro-channel heat exchanger |
| CN112229238B (en) * | 2020-10-16 | 2022-11-22 | 中国航发四川燃气涡轮研究院 | Woven fin heat exchange structure arranged in corrugated mode and heat exchanger |
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