CN218583850U - Combined type heat exchanger based on internal heat exchange - Google Patents

Combined type heat exchanger based on internal heat exchange Download PDF

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Publication number
CN218583850U
CN218583850U CN202222091798.8U CN202222091798U CN218583850U CN 218583850 U CN218583850 U CN 218583850U CN 202222091798 U CN202222091798 U CN 202222091798U CN 218583850 U CN218583850 U CN 218583850U
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China
Prior art keywords
heat
heat exchange
exchanger based
heat exchanger
base plate
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Expired - Fee Related
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CN202222091798.8U
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Chinese (zh)
Inventor
徐鹏华
夏文庆
钟宇
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Hangzhou Le Maiji New Energy Technology Co ltd
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Hangzhou Le Maiji New Energy Technology Co ltd
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Abstract

The utility model discloses a combined heat exchanger based on inside heat exchange aims at providing a compact structure, does benefit to the combined heat exchanger based on inside heat exchange to small space and flexible spatial arrangement, and it includes the heat conduction base plate, heat dissipation heat source and a plurality of heat transfer pipeline, and the surface of heat conduction base plate contacts with the heat dissipation heat source, be equipped with a plurality of on the heat conduction base plate respectively with a plurality of heat transfer pipeline one-to-one assorted passageway, the heat transfer pipeline is laminated mutually with the lateral wall of corresponding passageway, the heat transfer pipeline internal flow has intraductal heat transfer working medium. The utility model has the advantages that: the heat exchange density is high, the occupied space is reduced, and meanwhile, according to different application scenes, the heat conduction substrate and the heat exchange pipeline can be made of materials with different sizes and different flexibilities so as to be applied to arrangement of a micro space and a flexible space, and the purposes of being compact in structure and beneficial to arrangement of the micro space and the flexible space are achieved.

Description

Combined type heat exchanger based on internal heat exchange
Technical Field
The utility model belongs to the technical field of the relevant technique of heat exchanger and specifically relates to indicate a combined type heat exchanger based on inside heat exchange.
Background
The heat exchanger plays a key role in the energy saving process of many industries, and along with the increase of energy consumption and the rise of energy saving consciousness in recent years, the demand of the heat exchanger is continuously increased. The rapid industrialization process, strict environmental regulations and technological advances all over the world are driving the growth of the heat exchanger market, and these factors make the heat exchanger technology more and more interesting. And the distribution and uniformity of the surface temperature of the heat exchanger is required differently in each case.
The internal temperature of the electronic and electric elements is greatly different due to the non-uniformity in the heat generating and heat transferring processes, and the performance and the service life of the elements are seriously influenced by the formed temperature drift and temperature stress.
In the occasions of space suits, load-resistant suits and the like, the internal temperature difference caused by the nonuniformity of heat transfer and heat conduction influences the life safety and comfort of human bodies.
The existing liquid cooling micro-channel heat exchanger has higher heat exchange capacity, but has poorer temperature uniformity and temperature field control.
Based on this, chinese patent publication No. CN215864814U, and granted publication date 2/18/2022 discloses a combined heat pipe heat exchanger device, which includes a first component of a heat pipe heat exchanger disposed in the middle, a second component disposed at a fresh air inlet and an exhaust air outlet of the heat pipe heat exchanger, and a third component disposed at the fresh air outlet and the exhaust air inlet of the heat pipe heat exchanger; the first component comprises a heat pipe and a first component main body frame, wherein the heat pipe comprises an evaporation end and a condensation end; the evaporation end of the heat pipe and the condensation end of the heat pipe are fixedly arranged on the first component main body frame; the evaporation end of the heat pipe is arranged below the condensation end of the heat pipe; the second part comprises a second part main body frame and an air exhaust and inlet pipeline, and the air exhaust and inlet pipeline comprises a fresh air inlet and an air exhaust outlet; the third component comprises a third component main body frame and an exhaust air outlet pipeline, wherein the exhaust air outlet pipeline comprises a fresh air outlet and an exhaust air inlet; the fresh air inlet is connected with the fresh air outlet, the fresh air outlet is connected with the air exhaust inlet, and the air exhaust inlet is connected with the air exhaust outlet; the first component, the second component and the third component are positioned on the same horizontal plane and are connected into a whole by welding.
It can be known from the above patent that although the heat pipe heat exchanger can effectively reduce the unevenness of the temperature field, the heat pipe itself needs to be filled with working medium, the heat transfer effect is limited by the thermal physical property of the working medium, although the temperature field is leveled, two heat transfer links of an evaporation end and a condensation end are added, the arrangement of the tiny space and the flexible space is very unfavorable, and the temperature field cannot be controlled.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome among the prior art heat pipe exchanger to the unfavorable not enough of small space and flexible spatial arrangement, provide a compact structure, do benefit to the combined type heat exchanger based on inside heat exchange to small space and flexible spatial arrangement.
In order to realize the purpose, the utility model adopts the following technical scheme:
a combined heat exchanger based on internal heat exchange comprises a heat-conducting substrate, a heat-radiating heat source and a plurality of heat-exchanging pipelines, wherein the surface of the heat-conducting substrate is in contact with the heat-radiating heat source, a plurality of channels which are respectively matched with the plurality of heat-exchanging pipelines one by one are arranged on the heat-conducting substrate, the heat-exchanging pipelines are attached to the side walls of the corresponding channels, and heat-transferring working media in pipes flow in the heat-exchanging pipelines. The heat dissipation heat source flows through the surface of the heat conduction substrate or flows through the inside of the heat conduction substrate or is placed on the heat conduction substrate or is placed inside the heat conduction substrate or is not in direct contact with the heat conduction substrate. The arrangement, the number, the channel size and the length of the heat exchange pipelines are determined according to the specific requirements of a heat dissipation heat source. The flow direction of the heat transfer working medium in the heat exchange pipeline is determined according to the specific requirements of a heat dissipation heat source. The flow of the heat transfer working medium in the heat exchange pipeline is determined according to the specific requirements of a heat dissipation heat source. The heat conducting substrate is made of one material or more than one material. The heat exchange pipelines are arranged in the heat conduction substrate, so that heat transfer working media in the pipelines can enter and exit in two directions through the corresponding heat exchange pipelines, an external heat source sequentially passes through the heat conduction substrate and the heat exchange pipelines to form heat exchange with the heat transfer working media in the pipelines, the heat transfer working media in the pipelines form a temperature gradient along the flow direction, the heat conduction substrate forms a temperature field, and different sizes, shapes, arrangements, flow directions and flow rates of the heat exchange pipelines can form different temperature fields for the heat conduction substrate; after the heat transfer working medium in the pipe enters the heat exchange pipeline to absorb the heat of the heat source, temperature rise is generated and the working medium flows out of the heat exchanger; because the utility model discloses a heat exchange part only comprises heat conduction base plate and heat transfer pipeline, so reduced occupation space, simultaneously according to the applied scene of difference, heat conduction base plate and heat transfer pipeline can be made by not unidimensional, different flexible material to be applied to arranging of small space and flexible space, reached compact structure, do benefit to the purpose of arranging small space and flexible space.
Preferably, the cross-sectional shape of the heat exchange tube and the cross-sectional shape of the channel on the heat conducting substrate are both arbitrary shapes. According to the actual use requirement, the cross-sectional shape of the heat exchange pipeline and the cross-sectional shape of the channel on the heat conducting substrate can be circular, rectangular, trapezoidal, triangular and the like, and the practicability is improved.
Preferably, the joint length of the section of the joint of the heat exchange pipeline and the channel accounts for 30% -100% of the outer perimeter of the section. Do benefit to heat transfer pipeline spacing on the one hand, on the other hand is favorable to improving heat transfer pipeline and heat conduction substrate's heat exchange efficiency.
Preferably, the heat exchange tube has a flat or curved shape. The shape of the heat exchange pipeline can be suspended according to actual use requirements, and therefore spatial arrangement of the heat exchange pipeline is facilitated.
Preferably, the heat-conducting substrate is formed by a single layer of heat-conducting blocks or by mutually overlapping and compounding two or more layers of heat-conducting blocks. The design is favorable for guaranteeing certain heat exchange efficiency according to actual use requirements.
Preferably, the interior of the heat-conducting substrate is a solid compact structure.
As another preferable mode, the interior of the heat conducting substrate is a space structure.
Preferably, the heat transfer working medium in the pipe is gas or liquid for single-phase temperature difference heat exchange.
As another preferred mode, the heat transfer working medium in the pipe is liquid for phase-change heat exchange.
Preferably, the heat exchanger further comprises an external cold source, and the external cold source is respectively communicated with the plurality of heat exchange pipelines to form a loop. The external cold source is one or more. The heat transfer working medium flowing out of the heat exchanger in the pipe is cooled back to the heat exchange pipeline through heat exchange of an external cold source to form circulation, and the circulation is repeated, so that energy is saved.
The utility model has the advantages that: the utility model discloses combined type heat exchanger based on internal heat exchange passes through the internal heat exchange between the heat transfer pipeline, makes heat exchanger's heat transfer process be in temperature field controllable state, can form the average temperature field of temperature, also can form the temperature field of appointed temperature distribution, heat transfer density is high, occupation space has been reduced, simultaneously according to different application scenes, heat conduction base plate and heat transfer pipeline can be made by the material of unidimensional, different flexibility, in order to be applied to the arrangement of small space and flexible space, reached compact structure, do benefit to the purpose of arranging small space and flexible space; the practicability is improved; the spatial arrangement of the heat exchange pipeline is facilitated; the heat transfer working medium flowing out of the heat exchanger in the pipe is cooled and returned to the heat exchange pipeline through heat exchange of an external cold source to form circulation, and the circulation is repeated, so that energy is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the heat exchange tubes and passages of FIG. 1 having a different cross-sectional shape;
fig. 4 is a schematic structural view of a heat-conducting substrate formed by combining a plurality of heat-conducting blocks.
In the figure: 1. heat conducting base plate, 2, heat exchanging pipeline, 3, heat transferring working medium in the pipeline, 4, heat dissipation heat source, 5, heat conduction block.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1 and 2, a composite heat exchanger based on internal heat exchange includes a heat-conducting substrate 1, a heat-dissipating heat source 4 and a plurality of heat-exchanging pipes 2, wherein the surface of the heat-conducting substrate 1 contacts with the heat-dissipating heat source 4, the heat-conducting substrate 1 is provided with a plurality of channels respectively matched with the heat-exchanging pipes 2 one by one, the heat-exchanging pipes 2 are attached to the side walls of the corresponding channels, and a heat-transferring working medium 3 in the pipes flows in the heat-exchanging pipes 2.
As shown in fig. 3, the cross-sectional shape of the heat exchange tube 2 and the cross-sectional shape of the channel on the heat conductive substrate 1 are both arbitrary shapes.
As shown in fig. 3 and 4, the joint length of the section where the heat exchange pipe 2 is jointed with the channel accounts for 30% -100% of the outer circumference of the section.
As shown in fig. 2, the heat exchange tubes 2 are straight or curved in shape.
As shown in fig. 4, the heat conductive substrate 1 is formed by a single layer of heat conductive blocks 5 or by laminating and compounding two or more layers of heat conductive blocks 5.
As shown in fig. 3 and 4, the interior of the heat conductive substrate 1 has a solid and dense structure.
The interior of the heat conductive substrate 1 may also be a spatial structure.
The heat transfer working medium 3 in the tube is gas or liquid of single-phase temperature difference heat exchange.
The heat transfer working medium 3 in the tube is liquid for phase change heat exchange.
The heat exchanger also comprises an external cold source which is respectively communicated with the plurality of heat exchange pipelines 2 to form a loop.
The utility model discloses in combined type heat exchanger's heat transfer method based on inside heat exchange does, and heat transfer working medium 3 flows in heat transfer pipeline 2 in, through heat conduction or convection or radiation completion heat transfer process back of heat conduction, heat transfer pipeline 2 and heat conduction base plate 1, heat conduction base plate 1 and heat dissipation heat source 4, flows out heat exchanger, accomplishes the heat transfer function.
The heat transfer working medium 3 in the pipe flowing out of the heat exchanger through the heat exchange pipeline 2 flows back to the heat exchange pipeline 2 after heat exchange of an external cold source to form a cycle, and the process is repeated.
The utility model discloses well heat transfer pipeline 2 is for can be many processes, and heat transfer pipeline 2 and heat conduction base plate 1 are metal or nonmetal material.
The internal heat exchange process of the compound heat exchanger with internal heat exchange is as follows: the heat transfer working medium 3 in the tube flows into the heat exchange pipeline 2, and flows out of the heat exchanger after the heat transfer process is finished through convection heat transfer in the tube, heat conduction of the heat exchange pipeline 2 and the heat conduction substrate 1, and heat conduction or convection or radiation of the heat conduction substrate 1 and the heat dissipation heat source 4, so that the heat transfer function is finished. The temperature field of the heat conducting substrate 1 and the heat exchange surface of the external heat source of the heat exchanger can be controlled by controlling the flow direction and flow velocity of the heat transfer working medium in each heat exchange pipeline 2. Specially, (1) the heat exchange pipelines 2 are distributed at equal intervals; (2) the heat transfer working media 3 in the inner pipes of the two adjacent heat exchange pipelines 2 have opposite flow directions and equal flow; (3) the heat-conducting substrate 1 has a sufficient thickness; (4) when the external heat source dissipates heat evenly, the temperature fields of the heat-conducting substrate 1 and the heat-exchanging surface of the external heat source of the heat exchanger are considered to be even due to the symmetry of the internal heat conduction.
In a word, the utility model provides a combined type heat exchanger and heat transfer method of inside heat exchange can effectively compensate prior art's not enough, makes heat exchanger's heat transfer process be in the controllable state in temperature field, can form the temperature field that the temperature is average, also can form appointed temperature distribution's temperature field to heat transfer density is high, occupation space is little.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can understand the changes or substitutions within the technical scope of the present invention, and the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a combined type heat exchanger based on inside heat exchange, its characterized in that, includes heat conduction base plate (1), heat dissipation heat source (4) and a plurality of heat transfer pipeline (2), the surface of heat conduction base plate (1) contacts with heat dissipation heat source (4), be equipped with on heat conduction base plate (1) a plurality of respectively with a plurality of heat transfer pipeline (2) one-to-one assorted passageway, heat transfer pipeline (2) laminate mutually with the lateral wall of corresponding passageway, it has intraductal heat transfer working medium (3) to flow in heat transfer pipeline (2).
2. A composite heat exchanger based on internal heat exchange according to claim 1, characterized in that the cross-sectional shape of the heat exchange tubes (2) and the cross-sectional shape of the channels on the heat conducting base plate (1) are both arbitrary.
3. A composite heat exchanger based on internal heat exchange according to claim 1, characterized in that the length of the cross-section where the heat exchange tubes (2) meet the channels is 30-100% of the outer perimeter of the cross-section.
4. A composite heat exchanger based on internal heat exchange according to claim 1, characterised in that the shape of the heat exchange tubes (2) is straight or curved.
5. The composite heat exchanger based on internal heat exchange of claim 1, wherein the heat conducting substrate (1) is composed of a single layer of heat conducting blocks (5) or two or more layers of heat conducting blocks (5) stacked and compounded.
6. A composite heat exchanger based on internal heat exchange according to claim 1, characterized in that the interior of the heat conducting base plate (1) is a solid dense structure.
7. A composite heat exchanger based on internal heat exchange according to claim 1, characterized in that the interior of the heat conducting base plate (1) is a spatial structure.
8. A composite heat exchanger based on internal heat exchange according to claim 1, characterized in that the heat transfer medium (3) inside the tubes is a gas or a liquid for single phase temperature difference heat exchange.
9. A composite heat exchanger based on internal heat exchange according to claim 1, characterised in that the heat transfer medium (3) inside the tubes is a phase change heat exchange liquid.
10. A composite heat exchanger based on internal heat exchange according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that it further comprises an external cold source, said external cold source is respectively connected with a plurality of heat exchange pipes (2) to form a loop.
CN202222091798.8U 2022-08-10 2022-08-10 Combined type heat exchanger based on internal heat exchange Expired - Fee Related CN218583850U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222091798.8U CN218583850U (en) 2022-08-10 2022-08-10 Combined type heat exchanger based on internal heat exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222091798.8U CN218583850U (en) 2022-08-10 2022-08-10 Combined type heat exchanger based on internal heat exchange

Publications (1)

Publication Number Publication Date
CN218583850U true CN218583850U (en) 2023-03-07

Family

ID=85360341

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222091798.8U Expired - Fee Related CN218583850U (en) 2022-08-10 2022-08-10 Combined type heat exchanger based on internal heat exchange

Country Status (1)

Country Link
CN (1) CN218583850U (en)

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Granted publication date: 20230307