CN117308662A - Heat exchanger and modular heat exchange system - Google Patents
Heat exchanger and modular heat exchange system Download PDFInfo
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- CN117308662A CN117308662A CN202311590190.2A CN202311590190A CN117308662A CN 117308662 A CN117308662 A CN 117308662A CN 202311590190 A CN202311590190 A CN 202311590190A CN 117308662 A CN117308662 A CN 117308662A
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 102
- 239000007769 metal material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 9
- 230000005855 radiation Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008676 import Effects 0.000 abstract description 10
- 238000012546 transfer Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000010146 3D printing Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005482 strain hardening Methods 0.000 description 6
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- 238000005516 engineering process Methods 0.000 description 4
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
- F28D17/02—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
- F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
-
- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application discloses heat exchanger and modular heat transfer system, including heat dissipation core, import takeover and export takeover, the export passageway has been seted up along heat dissipation core circumference to the heat dissipation core outer wall, the import takeover runs through the export passageway and stretches into inside the heat dissipation core, the import takeover is used for letting in hot fluid, export takeover and export passageway intercommunication, and export takeover is adjustable along export passageway circumference position, the export takeover is used for discharging the fluid after the heat exchange, this application has that heat exchange capacity is strong, compact degree is high, working medium flow heat transfer direction is adjustable, adaptable various service environment, use nimble advantage.
Description
Technical Field
The application relates to the technical field of heat exchange equipment, in particular to a heat exchanger and a modular heat exchange system.
Background
The heat exchanger is universal process equipment for allocating energy among different material flows and completing heat transport, is widely applied to a large number of industries such as power generation, chemical industry, power, metallurgy and the like, and particularly in a power circulation system taking supercritical carbon dioxide as a working medium, and plays an important role in transferring and allocating energy among the working mediums. Along with the continuous improvement of the technology level, people pay more and more attention to special application scenes of power systems related to nuclear power plants, thermal power stations and aeroengines, and the heat exchanger has the advantages of reducing the equipment size, improving the efficiency, reducing the equipment manufacturing and operating cost and reducing the natural resource consumption, so that the heat exchanger is one of the future development directions. At present, heat exchangers in use in the conventional industrial field mainly comprise shell-and-tube heat exchangers, double-tube heat exchangers, plate-fin heat exchangers and the like, but cannot meet the requirements of large heat exchange specific surface area, high welding strength and small volume at the same time.
The existing traditional heat exchanger has the problem of fixed outlet direction, is easy to be limited by environment, and is difficult to meet the requirements of free arrangement and efficient heat exchange of heat exchange equipment in a system.
Disclosure of Invention
The main aim of the application is to provide a heat exchanger and a modular heat exchange system, which aim at solving the technical problem that the outlet direction of the existing heat exchanger is fixed and is easy to be limited by environment.
In order to achieve the above-mentioned purpose, the application provides a heat exchanger, including the heat dissipation core, import takeover and export takeover, the export passageway has been seted up along heat dissipation core circumference to the heat dissipation core outer wall, the import takeover runs through the export passageway and stretches into inside the heat dissipation core, the import takeover is used for letting in hot fluid, export takeover and export passageway intercommunication, and export takeover is along export passageway circumference position adjustable, export takeover is used for discharging the fluid after the heat exchange, export takeover exit direction can be changed, the flexibility of use of heat exchanger has been improved, can adjust according to different application demands and optimize, have stronger suitability.
Optionally, the heat dissipation core surface is provided with the sealing strip of cladding outlet channel, and the sealing strip is used for enclosing the outlet channel into inclosed space, and the import takeover runs through the sealing strip, and the export takeover is connected in sealing strip one side, and the sealing strip has elasticity, has guaranteed sealed effect promptly, can adapt to export takeover position change again, satisfies the operation requirement.
Optionally, the sealing strip includes a plurality of sealing pieces, and the sealing piece both sides end all is connected with and leads the slide bar, and the sealing spout with corresponding guide slide bar complex has been seted up to exit channel both sides wall, and the part position of adjacent sealing piece stacks up each other, and is connected with the spring between the position that adjacent sealing piece stacks up each other, and the export takeover is connected between two corresponding sealing pieces to realize the sealing strip both has sealed effect, has elastic expansion effect again, with the change of adaptation export takeover position.
Optionally, the sealing plate is made of a metal material or a non-metal material.
Optionally, the inlet connection pipe is located at an opening at one end of the outer side of the heat dissipation core, and a plurality of through holes are formed in one end of the inlet connection pipe extending into the heat dissipation core.
Optionally, one end of the inlet connecting tube extending into the heat dissipation core is a spherical end, and the plurality of through holes are formed in the spherical end.
Optionally, the structure of the heat dissipation core is a three-period minimum curved surface structure, so that the heat exchanger has the characteristics of strong heat dissipation capability and free flow direction, and compared with the traditional heat exchanger for fixing the flow direction of cooling working medium, the heat exchanger can reduce the on-way resistance loss, and has obvious cost advantage and wide application prospect.
Optionally, the material of heat dissipation core and import takeover is 3D printing material, and heat dissipation core and import takeover integrated into one piece.
Optionally, the heat dissipation core has an outer shape of at least one of a sphere, a polygon prism, and a polygon pyramid.
A modular heat exchange system comprises a plurality of heat exchangers, wherein adjacent heat exchangers are connected at a preset angle through an inlet connecting pipe and an outlet connecting pipe.
The beneficial effects that this application can realize are as follows:
the heat exchanger comprises a heat dissipation core, an inlet connecting pipe and an outlet connecting pipe, wherein an outlet channel is formed in the outer wall of the heat dissipation core along the circumferential direction of the heat dissipation core, the inlet connecting pipe penetrates through the outlet channel and stretches into the inside of the heat dissipation core, the inlet connecting pipe is used for introducing hot fluid, the outlet connecting pipe is communicated with the outlet channel, the outlet connecting pipe is adjustable along the circumferential position of the outlet channel, and the outlet connecting pipe is used for discharging the fluid after heat exchange. When using the heat exchanger of this application, can pass through the import after taking over and lets in hot fluid, the in-process that hot fluid distributed to outlet channel through the heat dissipation core inside to flow the heat transfer, the fluid after the heat exchange is taken over from the export again along outlet channel is last, accomplish the heat exchange process, and outlet take over is adjustable along outlet channel circumference position, thereby according to service environment adaptable regulation outlet take over position, thereby change the exit direction, the flexibility of use of heat exchanger has been improved greatly, can adjust according to different application demands and optimize, have stronger suitability.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present application (where m represents a hot working medium space and n represents a cold working medium space);
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 in the direction A-A;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1 in the direction B-B;
FIG. 4 is a schematic view of a partial enlarged structure at C in FIG. 3;
FIG. 5 is a schematic view of a connection structure between a sealing plate and a sliding guide rod according to an embodiment of the present application;
FIG. 6 is a schematic view of an alternative three-period minimum curved surface structure in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a modular heat exchange system according to an embodiment of the present application.
Reference numerals:
100-heat dissipation core, 110-outlet channel, 120-sealing chute, 200-inlet connection pipe, 210-through hole, 300-outlet connection pipe, 400-sealing band, 410-sealing sheet, 420-guide slide bar and 430-spring.
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship between the components, the movement condition, and the like in a specific posture, and if the specific posture is changed, the directional indicator is correspondingly changed.
In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
Example 1
Referring to fig. 1-6, the present embodiment provides a heat exchanger, including a heat dissipation core 100, an inlet connection pipe 200 and an outlet connection pipe 300, wherein an outlet channel 110 is formed on the outer wall of the heat dissipation core 100 along the circumferential direction of the heat dissipation core 100, the inlet connection pipe 200 penetrates through the outlet channel 110 and extends into the heat dissipation core 100, the inlet connection pipe 200 is used for introducing a hot fluid (gas or liquid), the outlet connection pipe 300 is communicated with the outlet channel 110, the position of the outlet connection pipe 300 along the circumferential direction of the outlet channel 110 is adjustable, and the outlet connection pipe 300 is used for discharging the fluid after heat exchange.
In this embodiment, after the hot fluid is introduced through the inlet adapter tube 200, the hot fluid is dispersed into the outlet channel 110 through the inside of the heat dissipation core 100, so as to perform flow heat exchange, the fluid after heat exchange is finally discharged from the outlet adapter tube 300 along the outlet channel 110, so as to complete the heat exchange process, and the circumferential position of the outlet adapter tube 300 along the outlet channel 110 is adjustable, so that the position of the outlet adapter tube 300 can be adaptively adjusted according to the use environment, and the outlet direction is changed, so that the pipe orifice of the outlet adapter tube 300 faces the cold working medium inflow direction, thereby greatly improving the use flexibility of the heat exchanger, being capable of adjusting and optimizing according to different application requirements, having stronger applicability, being widely applied in the energy power field and having wide market application prospect; meanwhile, after the heat fluid radiates through the heat radiation core 100, the heat fluid can exchange heat with the external cold working medium space again in the process of flowing through the outlet channel 110, and the heat radiation effect is improved.
Since the outlet channel 110 needs to guide and restrict the fluid, it is necessary to ensure the tightness of the outlet channel 110, and then a sealing structure needs to be arranged on the surface of the heat dissipation core 100 to seal the outlet channel 110, but the outlet connection pipe 300 needs to be kept in communication with the outlet channel 110, and meanwhile, the circumferential position of the outlet connection pipe 300 along the outlet channel 110 needs to be adjustable, so that the traditional sealing structure is difficult to satisfy tightness and adjustability, and even if the traditional sealing structure is adjustable, the sealing structure itself needs to be adjusted in operation, so that the operation is extremely inconvenient.
Thus, as an alternative embodiment, the surface of the heat sink 100 is provided with a sealing tape 400 covering the outlet passage 110, the sealing tape 400 is used to enclose the outlet passage 110 into a closed space, the inlet nipple 200 penetrates the sealing tape 400, the outlet nipple 300 is connected to one side of the sealing tape 400, and the sealing tape 400 has elasticity.
In this embodiment, the sealing band 400 can form the outlet channel 110 with a closed space to restrict and guide the flow of the hot fluid, meanwhile, since the sealing band 400 has elasticity, the outlet connection pipe 300 on the sealing band 400 has a certain range of motion, so as to realize the adjustment of the circumferential position of the outlet connection pipe 300 along the outlet channel 110, and after the adjustment, the sealing band 400 generates certain elastic deformation at the corresponding positions of the two sides of the outlet connection pipe 300, thereby having an adaptive function, being capable of adapting to the change of the position of the outlet connection pipe 300, ensuring the sealing function and adapting to the change of the position of the outlet connection pipe 300, and because the self-adaptability can not need to independently operate the sealing band 400, thus meeting the use requirement.
As an alternative embodiment, the sealing band 400 includes a plurality of sealing sheets 410, both side ends of the sealing sheets 410 are connected with guide sliding bars 420, both side walls of the outlet channel 110 are provided with sealing sliding grooves 120 matched with the corresponding guide sliding bars 420, part parts of the adjacent sealing sheets 410 are stacked with each other, so that the sealing sheets 410 are in a fish scale type sealing structure, a spring 430 is connected between the stacked parts of the adjacent sealing sheets 410, and the outlet connecting tube 300 is connected between the corresponding sealing sheets 410.
In this embodiment, when the position of the outlet adapter 300 needs to be adjusted, the outlet adapter 300 is pulled to a corresponding position along the axial direction of the outlet channel 110, then the outlet adapter 300 is fixed by external facilities, at this time, the sealing sheets 410 near the outlet adapter 300 are mutually telescopic, the sealing sheets 410 correspondingly slide along the track of the sealing sliding groove 120, the track of the sealing sliding groove 120 should be matched with the outlet channel 110, the guiding sliding bars 420 not only play a role in guiding, but also play a role in limiting the sealing sheets 410, so that the sealing sheets 410 can be arranged along the track of the outlet channel 110, after the sealing sheets 410 are mutually telescopic, as part parts of the adjacent sealing sheets 410 are mutually stacked, part parts of the telescopic sealing sheets 410 are mutually stacked, so as to ensure the sealing performance, but also the adjacent sealing sheets 410 are connected by the springs 430, when the distance between the adjacent sealing sheets 410 is shortened or lengthened, the springs 430 can rebound or draw the sealing sheets 410, so that the sealing integrity between the sealing sheets is always kept, and the sealing strips 400 in this embodiment adopt a fish scale sealing structure, and simultaneously, the sealing strips 420 also play a role in traction role, so that the sealing strips can be arranged along with the track of the outlet channel 110, after the sealing strips are mutually telescopic, so that the sealing strips can be flexibly arranged, and the cooling effect is not only can be changed, but also can be flexibly, for example, the cooling effect can be realized, and the cooling effect can be changed, and the cooling effect can be flexibly, and the cooling device can be flexibly arranged, and the cooling well, and the cooling device can be flexibly, and the cooling device can be and the cooling well, and the cooling device can be and the well.
It should be noted that, both the outlet connection pipe 300 and the inlet connection pipe 200 may be welded between the two corresponding sealing sheets 410, and the inlet connection pipe 200 extends into the heat dissipation core 100, so that the inlet connection pipe 200 is fixed, and the outlet connection pipe 300 is only connected with the sealing sheets 410, thereby being capable of freely rotating; the outlet connection pipe 300 is not limited to one, two or more outlet connection pipes 300 can be arranged according to actual requirements, and two sides of the outlet connection pipe 300 are connected with the sealing sheets 410, so that tightness is ensured; the sealing chute 120 is formed on the side wall of the outlet channel 110, the sliding guide rod 420 extends into the sealing chute 120, the sliding guide rod 420 is cylindrical, and can adapt to the swing of the sealing sheet 410, the diameter of the sliding guide rod 420 is smaller than the thickness of the sealing sheet 410, and then the width of the sealing chute 120 is smaller than the thickness of the sealing sheet 410, so that the sealing sheet 410 can block the sealing chute 120 as much as possible, and the sealing performance is improved.
In other embodiments, the sealing band 400 may be an elastic band, two ends of the elastic band are connected with the plurality of sliding guide rods 420, so that the sealing band can adapt to the change of the outlet connection tube 300 in a certain range, and can also meet certain use requirements.
As an alternative embodiment, the sealing plate 410 is made of a metal material or a non-metal material, so as to adapt to a certain deformation effect, the sealing plate 410 is generally made of a metal plate structure, and is formed into an integral structure by processing the two side surfaces of the sealing plate, and the sealing sliding groove 120 is a micro-channel, and the sealing sliding groove 420 can be embedded in the sealing sliding groove 120, so that a plurality of sealing plates 410 can freely slide along the track of the sealing sliding groove 120.
It should be noted that, the metal material may be copper, that is, the sealing sheet 410 is a copper sheet, which has a certain heat dissipation effect and meets the use requirement; the nonmetallic material can be polytetrafluoroethylene, rubber and the like, polytetrafluoroethylene (PTFE), commonly called "plastic king", is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer, has a chemical formula of (C2F 4) n, has excellent heat resistance and cold resistance, can be used for a long time at-180-260 ℃, and is an elastic polymer which meets the use requirements.
As an alternative embodiment, the inlet connection pipe 200 is opened at one end located at the outer side of the heat dissipation core 100, and a plurality of through holes 210 are formed at one end of the inlet connection pipe 200 extending into the heat dissipation core 100.
In the present embodiment, after the hot fluid is introduced from the open end of the inlet nipple 200, the hot fluid is discharged from the plurality of through holes 210 at the other end of the inlet nipple 200, thereby dividing the hot fluid into a plurality of fluids, and dispersing around the heat dissipation core 100, thereby improving the heat dissipation effect and efficiency.
As an alternative embodiment, the end of the inlet connection pipe 200 extending into the heat dissipation core 100 is a spherical end, and the plurality of through holes 210 are formed in the spherical end.
In the present embodiment, when the thermal fluid is discharged from the plurality of through holes 210 distributed in a spherical shape, the plurality of through holes 210 can be maximally discharged in different directions, thereby allowing the thermal fluid to be in full contact with the heat sink 100, and further improving the heat dissipation effect and efficiency.
As an alternative embodiment, the heat sink 100 is configured as a three-period minimum curved structure. The heat dissipation core 100 and the inlet connection pipe 200 are made of 3D printing materials, and the heat dissipation core 100 and the inlet connection pipe 200 are integrally formed.
In recent years, with the improvement of the industrial level, the appearance of the solid-phase additive manufacturing technology, namely the 3D printing technology, obviously changes the manufacturing mode and design thought of the heat exchanger, wherein the 3D printing heat exchanger taking the laser selective melting technology as the core can obviously remove redundant metal materials, and reduce the volume weight. However, the working medium flow heat transfer of the 3D printing heat exchanger is single, and the restriction of one-direction in-out of the working medium in the traditional heat exchanger cannot be eliminated, so that inconvenience is brought to the arrangement and the use of the whole industrial system. In view of this, in this embodiment, in order to improve the problem that the direction of flow heat transfer of working medium in the traditional heat exchanger is single, satisfy the free arrangement and the high-efficient heat transfer of heat exchanger in the system, based on the tiny heat radiation structure on the insect wing in bionics, the heat dissipation core 100 based on three period minimum curved surface (TPMS) structure has been constructed through mathematical method, because heat dissipation core 100 is filled by TPMS structure, and leave cooling medium inlet duct, make this heat exchanger have the characteristics that heat dissipation ability is strong, the direction of flow is free, compare in traditional heat exchanger fixed cooling medium flow direction, can reduce along way resistance loss, possess obvious cost advantage and extensive application prospect, provide new direction for improving the compact degree and the flexibility of heat exchanger, provide means for further improving the performance index and the application flexibility of 3D printing heat exchanger.
The heat dissipation core 100 is based on a 3D printing entity completely filled by a three-period minimum curved surface (TPMS) structure, wherein the TPMS structure refers to a curved surface generated by a specific mathematical formula, after forming a solid wall by biasing a certain small distance from left to right, a space is divided into two mutually disjoint but continuous porous structures, the average curvature of each point of the TPMS structure is zero, and the heat dissipation core has continuous disjoint double-hole channels and a specific surface area far higher than that of the porous structure of the traditional heat exchanger, so that cold and hot liquid of the heat exchanger can flow without contact, and the contact area of the cold and hot liquid is effectively improved, thereby improving the heat dissipation efficiency.
The minimum cell structure of the TPMS structure satisfies the formulas shown in table 1 below, and the relative density of the TPMS cell structure is adjusted based on these formulas.
Table 1 (single cell structure formula table of TPMS lattice material)
After the TPMS structure is primarily formed, the space is divided into a hot working medium space m and a cold working medium space n, at this time, the two spaces are not communicated in the heat dissipation core 100, but are all communicated with the external environment, so that the structure and the boundary of the heat dissipation core 100 are further operated to perform boolean operation, the pores of the hot working medium space m and the environment on the surface of the heat dissipation core 100 are closed, the pores of the cold working medium space n on the surface of the heat dissipation core 100 are reserved, an inlet connection pipe 200 is printed, a through hole 210 connected with the hot working medium space m is reserved at the tail end of the inlet connection pipe 200, so that in the heat dissipation core 100, the hot working medium space m comprises the space in the inlet connection pipe 200, a half space in the heat dissipation core 100 (i.e. an inner core body part of the shell part in the depth range of the heat dissipation core 100 is separated from the outlet channel 110), the outlet channel 110 and the outlet connection pipe 300, the cold working medium space n comprises the environment space and another half space (i.e. a shell part in the depth range of the heat dissipation core 100 and the outlet channel 110), and the two working mediums can exchange heat in a very high heat in a limited space.
It should be noted that, the material of the heat dissipation core 100 may be stainless steel, or may be a metal material such as carbon steel, titanium alloy, or a non-metal material such as ceramic, so as to satisfy the molding requirement of 3D printing; the TPMS unit structure comprises a Diamond type structure, a Gyroid type structure, a Primive type structure and the like, and specific parameters can be adjusted according to actual needs to meet the requirements of 3D printing equipment; the laser used by the 3D printing equipment for processing the heat dissipation core 100 comprises laser emission heads with different wavelengths such as green laser, red laser and the like, and the requirement of forming precision of the heat dissipation core 100 can be met; the diameter of the metal or nonmetal powder material used for processing the heat dissipation core 100 is within the range of 1-10 mu m, and the molding precision requirement of the heat dissipation core 100 is met.
In summary, the heat exchanger based on the heat dissipation core 100 of the TPMS structure in this embodiment enables the three-dimensional flowing of the fluid in the TPMS structure to exchange heat efficiently, meanwhile, the cooling medium is not limited in the in-out direction, the cooling capability can be ensured when the fluid is in-out from any direction, the flexibility of the heat exchanger is greatly improved, the heat exchanger can be optimized according to different application requirements, the heat exchanger has stronger applicability, and the heat exchanger can be widely applied in the field of energy power and has wide market application prospects.
As an alternative embodiment, the heat dissipation core 100 has at least one of a spherical shape, a polygonal prism shape, and a polygonal pyramid shape.
In this embodiment, the heat dissipation core 100 is generally spherical, so that the space utilization rate is high, the outlet channel 110 of the heat dissipation core 100 is an annular groove, the sealing band 400 is also correspondingly a ring-shaped structure, and the outlet channel 110 is not limited to one ring, if there are multiple outlet channels 110, the outlet channels 110 should not intersect, i.e. the planes of the multiple outlet channels 110 are parallel to each other, so that there may be multiple corresponding inlet connection pipes 200 and outlet connection pipes 300 to meet more use requirements; if the heat dissipation core 100 is a polygonal prism (including a cuboid, a cube) or a polygonal pyramid structure, the outlet channel 110 may be independently provided with a rectangular groove on different surfaces of the polygonal prism or the polygonal pyramid, and the corner portion does not need to be provided with a groove, so that the sealing band 400 can ensure tightness and stretchability of the sealing band to the outlet channel 110.
Example 2
Referring to fig. 1 to 7, the present embodiment provides a modular heat exchange system including a plurality of heat exchangers according to the above embodiments, and adjacent heat exchangers are connected at a predetermined angle through an inlet connection pipe 200 and an outlet connection pipe 300.
In this embodiment, for a plurality of heat exchangers, a modularized combination connection can be performed, the outlet connection pipe 300 of the first heat exchanger and the inlet connection pipe 200 of the next heat exchanger are welded (or other detachable connection structures are adopted), the outlet connection pipe 300 and the inlet connection pipe 200 of the next heat exchanger are sequentially welded to form a serial structure, a heat exchanger with a plurality of outlet connection pipes 300 can also be assembled in the system, the plurality of outlet connection pipes 300 are respectively connected with the inlet connection pipe 200 of the next heat exchanger, a parallel structure can be formed, a serial-parallel structure with serial branches and parallel branches can also be adopted, and the modularized combination is adopted.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (10)
1. A heat exchanger, comprising:
the outer wall of the heat dissipation core is provided with an outlet channel along the circumferential direction of the heat dissipation core;
the inlet connecting pipe penetrates through the outlet channel and stretches into the heat dissipation core, and the inlet connecting pipe is used for introducing hot fluid;
the outlet connecting pipe is communicated with the outlet channel, the circumferential position of the outlet connecting pipe along the outlet channel is adjustable, and the outlet connecting pipe is used for discharging the fluid after heat exchange.
2. A heat exchanger as claimed in claim 1, wherein the heat radiation core surface is provided with a sealing tape covering the outlet passage, the sealing tape being for enclosing the outlet passage into a closed space, the inlet connection pipe penetrating the sealing tape, the outlet connection pipe being connected to one side of the sealing tape, the sealing tape being elastic.
3. A heat exchanger as claimed in claim 2, wherein the sealing strip comprises a plurality of sealing sheets, both side ends of the sealing sheets are respectively connected with a slide guiding rod, both side walls of the outlet channel are provided with sealing sliding grooves matched with the corresponding slide guiding rods, part parts of adjacent sealing sheets are stacked, springs are connected between the parts of adjacent sealing sheets stacked mutually, and the outlet connecting pipe is connected between the corresponding two sealing sheets.
4. A heat exchanger as claimed in claim 3, wherein the sealing plate is made of a metallic material or a non-metallic material.
5. A heat exchanger according to any one of claims 1 to 4, wherein the inlet nipple is open at an end located outside the heat radiation core, and a plurality of through holes are formed at an end of the inlet nipple extending into the heat radiation core.
6. A heat exchanger as claimed in claim 5, wherein the end of said inlet nipple extending into said heat sink is a spherical end, and a plurality of said through holes are formed in said spherical end.
7. A heat exchanger as claimed in any one of claims 1 to 4, wherein the heat radiation core has a three-period minimum curved surface structure.
8. The heat exchanger of claim 7, wherein the heat sink and the inlet nipple are both 3D printed materials, and the heat sink and the inlet nipple are integrally formed.
9. A heat exchanger as claimed in claim 1, wherein said heat-dissipating core has a shape of at least one of a sphere, a polygon and a polygon.
10. A modular heat exchange system comprising a plurality of heat exchangers according to any one of claims 1 to 9, adjacent heat exchangers being connected at a predetermined angle by said inlet connection and said outlet connection.
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| CN202311590190.2A CN117308662B (en) | 2023-11-27 | 2023-11-27 | Heat exchanger and modular heat exchange system |
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| CN202311590190.2A CN117308662B (en) | 2023-11-27 | 2023-11-27 | Heat exchanger and modular heat exchange system |
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| CN117308662B (en) | 2024-01-26 |
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