CN109612300B - Micro-through plate - Google Patents
Micro-through plate Download PDFInfo
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- CN109612300B CN109612300B CN201811384022.7A CN201811384022A CN109612300B CN 109612300 B CN109612300 B CN 109612300B CN 201811384022 A CN201811384022 A CN 201811384022A CN 109612300 B CN109612300 B CN 109612300B
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
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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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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the field of heat exchange, in particular to water, oil and CO2Air, refrigerantApparatus for exchanging heat between homogeneous or heterogeneous media. The micro-through plate consists of an inner side medium flow passage and two outer side heat exchange surfaces. The inner side medium flow channel consists of a distribution channel, a collection channel and small heat exchange channels crossed in a net shape, wherein the inlet ends of the small heat exchange channels are communicated with the distribution channel, and the outlet ends of the small heat exchange channels are communicated with the collection channel. The micro-through plate is formed by compounding two plate sheets, and the peripheries of the two plate sheets and the joint part of the middle bulge are tightly combined into a whole. The small channels and the numerous composite points which are uniformly distributed on the whole plate surface in a net-shaped staggered mode enable the medium in the flow channel to form turbulent flow and flowing back, and heat exchange is rapidly and efficiently carried out with the outside through the thin plate. The micro-through plate has the advantages of ultra-thin thickness, good mass production manufacturability, high heat exchange efficiency, small volume, low cost and the like.
Description
Technical Field
The invention relates to the field of heat exchange, in particular to water, oil and CO2And the like and non-like media such as air and refrigerant.
Background
A heat exchanger (also called heat exchanger) is a device that transfers part of the heat of a hot fluid to a cold fluid. The heat exchanger plays an important role in the field of household appliances or in chemical industry, petroleum industry, power industry, food industry and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like.
In China, indoor heating devices in winter in the north become standard configurations of families, and indoor heating in winter in the south is increasingly emphasized and gradually enters thousands of households. With the improvement of national environmental protection requirements, the coal boiler providing the circulating hot water of 60-90 ℃ is required to be gradually withdrawn, and the air energy, the ground source heat pump and the air-cooled heat pump unit providing the circulating hot water of 40-60 ℃ have the advantages of mature technology, high efficiency, energy conservation, cleanness, environmental protection, continuously increased use amount and gradually expanded application range. Therefore, the conventional high-water-temperature heating sheet cannot meet the market demand.
Application number 201721897724.6's chinese utility model discloses a plate-type finned radiator, including two parallel arrangement's business turn over water pipe and set up two rows of cooling tubes between two business turn over water pipes side by side, the cooling tube is flat metal pipe, and this flat metal pipe's axial both ends and business turn over water piping connection, and two rows of cooling tubes set up both sides around business turn over water pipe respectively. Radiating fins are welded on the inner side surface of the radiating pipe, and the radiator has the advantages of large radiating area and enhanced radiating effect. Because of the pressure-bearing reason, this radiator need adopt the thick tubular product of wall thickness, and its cooling tube flat tube is by machine-shaping, and outside solder joint is more, needs electrophoresis plastic-blasting to handle usually, has reduced the heat transfer effect, has increased the probability of leaking. Therefore, the radiator has heavy weight, high cost and unsatisfactory heat exchange effect.
The invention relates to a low-temperature radiator in the prior art, which comprises more than one group of plate-type heat transport devices and more than one parallel channel type fin heat exchange structure combined with the plate-type heat transport devices. The device disclosed by the patent needs a plurality of plate type heat conveying device combinations, and has the advantages of multiple welding procedures, complex process and high cost. The plate type heat transport device and the micro-channel structure designed by the device can be obtained only by adopting aluminum extrusion, and the micro-channel aluminum profile has large fouling coefficient and is not suitable for hot water media, particularly for northern water quality.
At present, one or more problems exist in the radiator heat exchanger generally, and 1) the radiator heat exchanger adopts metal pieces made of thicker materials, so that the radiator heat exchanger is heavy in weight and high in cost. 2) The welding process is more or the assembly process is complicated, the manufacturability is poor, and the heat exchange effect is influenced by the subsequent surface treatment. 3) The heat exchange medium is unevenly distributed, the diameter of a part of flow channels is large, the temperature stratification phenomenon exists, and the heat exchange efficiency is low. 4) Is suitable for heat exchange of 60-90 ℃ high water temperature, but has poor heating effect of 40-60 ℃ low water temperature. 5) The water storage capacity in the heat exchanger is large, the total weight of the radiator is increased, the response speed of heat exchange is reduced, and heat is lost.
Disclosure of Invention
In order to solve the above problems, the present invention provides a micro-channel plate, which is composed of two thin plates to form an inner medium channel and two outer heat exchange surfaces, wherein a distribution channel, a micro heat exchange channel and a collection channel on the single plate are integrally formed; the small channels and numerous compound points which are distributed on the whole plate surface in a net-shaped staggered mode enable media in the flow channels to form turbulent flow and turbulent flow, and heat exchange is conducted with the outside through the thin plates quickly and efficiently.
In order to achieve the purpose, the invention adopts the following technical scheme:
the little logical board is thin high-efficient heat transfer board, its characterized in that: the micro-through plate is formed by compounding two plate sheets, and the peripheries of the two plate sheets and the joint part of the middle bulge are tightly combined into a whole; the micro-through plate comprises an inner side medium flow passage and two outer side heat exchange surfaces; the inner side medium flow channel consists of a distribution channel, a collection channel and a reticular crossed micro heat exchange channel, wherein the inlet end of the micro heat exchange channel is communicated with the distribution channel, and the outlet end of the micro heat exchange channel is communicated with the collection channel;
the medium enters the micro-through plate, is distributed by the distribution channel to enter the reticular crossed micro heat exchange channels for sufficient turbulence, exchanges heat with the outside through the two outer heat exchange surfaces, and then is collected by the collection channel to flow out.
Preferably, the micro-through plate is formed by compounding two plates, and the medium inlet, the distribution channel, the micro heat exchange channel, the collection channel and the medium outlet can be formed on any one plate respectively and are butted with the other plate to form the micro-through plate; the two outer heat exchange surfaces of the micro-through plate are respectively a plane or a concave-convex surface.
Preferably, the medium inlet, the distribution channel, the micro heat exchange channel, the collection channel and the medium outlet can be formed on two sheets, and the two sheets are butted to form a micro through plate; the two outer heat exchange surfaces of the micro-through plate are respectively a plane or a concave-convex surface.
Preferably, the distribution channel is provided with a medium inlet, and the collection channel is provided with a medium outlet; the path lengths of a plurality of medium channels from the medium inlet to the medium outlet are all similar.
Preferably, the distribution channel, the micro heat exchange channel and the collection channel on the single plate are integrally formed.
Preferably, when the distribution channel, the micro heat exchange channel and the collection channel are punched on the inner side of the single plate, the protrusions are formed on the outer side wall of the plate, the grooves are formed between two adjacent protrusions on the outer side, and the heat exchange area is increased by the convex-concave alternation of the heat exchange surface on the outer side.
Preferably, a plurality of medium flow channels which are not staggered are arranged on the inner side butt joint surfaces of the two sheets; when the two plates are connected in a composite way, the medium flow channels are staggered to form a micro heat exchange channel; one medium flow channel on one plate is crossed with two or more medium flow channels on the other plate.
Preferably, the medium flow channel is in a multi-section fold line shape or a corrugated shape.
Preferably, the convex joint parts among the micro heat exchange channels are circular or elliptical, and the combined butt joint points are arranged in a matrix shape; the medium flow channel between the butt joints is in a peacock tail shape.
Preferably, the convex joint between the micro heat exchange channels is polygonal, and the combined butt joint points are arranged in a matrix shape; the medium flow channel between the butt joints is in a honeycomb shape.
A heat exchanger comprising a microchannel plate as described in any one of the above.
The technical scheme is adopted, and the technical scheme relates to a micro-through plate which adopts an integrally formed and compounded scheme, so that the process is simplified, and the quality and the reliability are improved. The inner side medium flow channel in the micro through plate consists of a distribution channel, a collection channel and mesh-shaped crossed micro heat exchange channels, and the micro heat exchange channels scatter media in the flow channel to form turbulent flow and turbulent flow. The path lengths of a plurality of medium channels from the medium inlet to the medium outlet are similar, and the small heat exchange channels which are uniformly distributed on the whole plate surface in a meshed and staggered mode further ensure that the medium fully utilizes the heat exchange surface, so that the maximization of the heat exchange effect is facilitated.
In addition to the above technical problems to be solved, the micro through plate also has the following characteristics;
1, at inboard machining distribution channel of monolithic slab, small heat transfer passageway, collection channel recess, form the arch on the slab lateral wall, constitute the recess between two adjacent archs in the outside, the unsmooth alternate outside heat transfer area that increases in the outside has promoted the heat transfer effect with external by a wide margin.
2, two plates of the micro-through plate are thin plates or ultrathin plates, no welding point is arranged outside, and the micro-through plate of nonferrous metal does not need post electrophoretic spraying and other treatments, thereby greatly improving the heat transfer speed and the heat exchange effect, saving energy, protecting environment and reducing the material consumption.
3, the micro-through plate has the advantages of ultrathin thickness, small volume, small water storage capacity, light weight, simple process, reliable quality, energy conservation, environmental protection, beautiful appearance, high heat exchange efficiency, low cost, particular suitability for heat exchange of low-temperature water at 40-60 ℃ and the like.
Drawings
Fig. 1 is a schematic structural view of a microchannel plate with honeycomb-shaped flow channels.
Fig. 2 is a schematic structural diagram of a front surface of a diagonally cross-convective micro-through plate.
Fig. 3 is a sectional view B-B of fig. 2.
Fig. 4 is a cross-sectional view taken along line D-D of fig. 2.
Fig. 5 is a schematic side view of a diagonally cross-convective microchannel plate.
Fig. 6 is a cross-sectional view C-C of fig. 5.
Fig. 7 is a schematic side view of a radiator in embodiment 3.
Fig. 8 is a schematic front view of a radiator in embodiment 3.
Fig. 9 is a side view schematically showing the structure of the air conditioner terminal device in example 4.
Fig. 10 is a schematic front view of an air conditioning terminal device according to embodiment 4.
Detailed Description
Preferred embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
the present embodiment relates to a micro-through plate, as shown in fig. 1 to 6. The micro-through plate is formed by two plate sheets (shown in the figure as a front plate sheet 1 and a rear plate sheet 2) in a composite mode; specifically, the peripheries of the two sheets and the joint of the middle bulge are tightly combined into a whole, the connection mode adopts a brazing mode, and the bulge joint parts 8 on the two sheets are compounded into a tight fixing point 81 through the brazing mode. The tight fixing points 81 are distributed on the inner sides of the plate sheets evenly, and the tight fixing points 81 are mainly used for connecting and fixing the two plate sheets, so that the bearing strength of the micro-through plate can be ensured. The embodiment can process the plate in advance, and then compound the two plates into the micro-through plate by welding and other modes. Except for the medium inlet and outlet, the periphery of the compounded micro-through plate is sealed, the joint part 8 with the middle bulge is compounded into a tight joint point 81, and the peripheral sealing layer 9 and the plurality of tight joint points 81 ensure that the micro-through plate can be made of thin plates but the pressure-bearing capacity meets the design requirement. The integral forming and integral welding technology greatly simplifies the production process and improves the quality reliability. And on the basis of the connection strength ensured by the connection structure, a thin plate or an ultrathin plate can be used as a plate, and the micro-through plate formed by compounding the thin plate or the ultrathin plate has the advantages of high heat transfer speed, high heat exchange efficiency, simple process, reliable quality and low cost.
As shown in the figure, the microchannel plate comprises an inner medium flow channel, the inner medium flow channel is composed of a distribution channel 4, a collection channel 6 and a micro heat exchange channel 5 connected between the distribution channel 4 and the collection channel 6, the distribution channel 4 is provided with a medium inlet 3, and the collection channel 6 is provided with a medium outlet 7; wherein, the micro heat exchange channel is formed between two outer heat exchange surfaces, the inlet end of the micro heat exchange channel 5 is communicated with the distribution channel 4, and the outlet end of the micro heat exchange channel is communicated with the collection channel 6. The medium path formed by any one of the tiny heat exchange channels 5 from the medium inlet 3 to the medium outlet 7 has a substantially equal path length. Therefore, the medium resistance in each medium path is balanced, the medium can be further ensured to be uniformly distributed in the heat exchanger, the heat exchange surface is fully utilized, and the maximization of the heat exchange effect is facilitated. In this embodiment, the shape of the two sheets is not limited, and the rectangular sheets, including the transverse and vertical arrangement, with or without the transverse and vertical arrangement of the arc-shaped polygon, should be understood in this embodiment. The arrangement of the distribution channel 4 and the collection channel 6 is not limited in this embodiment, and a series of embodiments including up-in-down-out, down-in-up-out, left-in-right-out, or right-in-left-out should be understood in this embodiment. In addition, the positions of the medium inlet 3 and the medium outlet 7 are limited in the embodiment of the present invention, but the above-mentioned different arrangement of the distribution channel 4 and the collection channel 6 is considered, so that the arrangement of the medium inlet 3 and the medium outlet 7 on the upper and lower sides, the left and right sides, or other positions of the two sheets should be understood in the present invention; in the figure, the two sides of the distribution channel 4 are provided with the medium inlets 3, the two sides of the collection channel 6 are provided with the medium outlets 7 so as to improve the product adaptability, one of the medium inlets 3 and the medium outlets 7 is selected in practical use, and the medium inlets 3 and the medium outlets 7 which are arranged diagonally need to be selected to ensure that the path lengths of the micro heat exchange channels 5 are basically equal.
Based on the technical scheme, the medium inlet, the distribution channel, the micro heat exchange channel, the collection channel and the medium outlet can be respectively formed on any plate and are butted with another plate to form a micro through plate; or the medium inlet, the distribution channel, the micro heat exchange channel, the collection channel and the medium outlet can be formed on two sheets, and the two sheets are butted to form a micro through plate; the two outer heat exchange surfaces of the micro-through plate are respectively a plane or a concave-convex surface. As shown in the figure, the micro through plate is formed by compounding two plates of a front plate 1 and a rear plate 2, and the abutting surfaces of the two plates are provided with distribution and circulation grooves 41 and 42, collection and circulation grooves 61 and 62 and a plurality of micro medium circulation grooves 51 and 52. The distribution channels 41 and 42 of the two plates are butted to form a distribution channel 4, the collection channels 61 and 62 are butted to form a collection channel 6, and the micro medium circulation grooves 51 and 52 are butted or independently formed into the micro heat exchange channels 5. The distribution channel 4 is communicated with the inlet ends of the plurality of micro heat exchange channels 5, the collection channel 6 is communicated with the outlet ends of the plurality of micro heat exchange channels 5, the end part of the distribution channel 4 is provided with a medium inlet 3, and the end part of the collection channel 6 is provided with a medium outlet 7. The medium inlet 3 and the medium outlet 7 may be disposed diagonally or on the same side. In the preferred scheme, the distribution circulation groove, the micro-medium circulation groove and the collection circulation groove on the single plate are integrally formed by punching; when the two plates are butted, a complete distribution channel, a micro heat exchange channel and a collection channel are formed. In addition, two outer heat exchange surfaces of the micro-through plate can be planes or concave-convex surfaces respectively. In one of them preferred scheme, when the inboard punching press of monolithic slab goes out distribution channel, small heat transfer passageway and collection passageway, form the arch on the slab lateral wall, constitute the recess between two adjacent archs in the outside, the unsmooth alternate heat transfer area that increases in outside heat transfer surface. The inner side runner and the outer side concave-convex heat exchange surface adopt an integrated stamping process, and simultaneously when a medium circulation groove on the plate butt joint surface is formed, the concave-convex surface is formed on the outer side of the plate, so that the processing process steps are simplified, the heat exchange area is increased, and the heat exchange effect is improved. Meanwhile, the plate can be selected to be a rough surface, so that the heat exchange effect of the medium is further improved.
The micro-through plate is formed by compounding a front plate piece 1 and a rear plate piece 2, and is generally made of metal materials or non-metal materials with high heat conductivity; when the metal material is selected, stainless steel, carbon steel, copper, alloy aluminum, alloy titanium and other materials can be selected. It is called a microchannel plate because of its two distinct features: 1) Made by thin plate, 2) the tiny heat exchange channel 5 in the plate is tiny channel, and the general diameter is 0.5 ~ 20 mm. The micro channel referred to herein is relative, and means that the aperture of the micro heat exchange channel 5 relative to the aperture of the distribution channel 1 and the collection channel 2 can be referred to as a micro channel. And the flow-through medium of the micro-through plate comprises but is not limited to water, oil, CO2Air, refrigerant, different media have different viscosities,and thus the diameter of the channel to which it is adapted.
According to the micro-through plate obtained based on the scheme, at least two micro heat exchange channels are staggered in the built-in micro heat exchange channels 5. So that the fluid medium in the micro heat exchange channel 5 generates turbulent flow and turbulent flow, and the medium generates turbulent flow and turbulent flow, thereby the temperature stratification of the medium is disturbed, and the heat exchange effect is greatly improved. And in accordance with the above principles, improvements to the microchannel plate provide various embodiments, as follows:
in the first scheme, the front plate and the rear plate are respectively provided with a corresponding bulge joint part and a micro medium circulation groove, the bulge joint parts are used as partitions between the micro medium circulation grooves and can break up media in the micro heat exchange channels 5, and the broken-up media are distributed into two adjacent micro heat exchange channels repeatedly. The medium is continuously scattered and continuously converged in the flowing process, and the medium is similar to piers in a river channel to enable water flow to form turbulent flow and turbulent flow. The micro heat exchange channels 5 and the tight fixing points 81 work together to ensure that the medium forms a water curtain shape and is evenly distributed at the inner sides of the two plates. Compared with a common heat exchanger, the medium uniformly distributed in the water curtain shape on the inner side of the thin plate greatly improves the heat exchange effect with the outside. After the protruding joint parts on the front plate and the rear plate are in butt joint, the butt joint points after compounding are arranged in a matrix shape. In one scheme (not shown), the convex joint between the micro heat exchange channels is circular or elliptical, and the medium flow channel between the butt joints is in a peacock tail shape. As shown in fig. 1, the convex joint between the micro heat exchange channels is polygonal, and the medium flow channel between the butt joints is honeycomb-shaped. The technical scheme is characterized in that the tiny heat exchange channels on a single plate are in a staggered net shape, and even if the tiny heat exchange channels are combined with another plane plate, the medium flow can form turbulent flow.
In the second scheme, the medium flowing grooves on the butt joint surface of the single plate are not staggered. When the two plates are connected in a composite mode, medium circulation grooves on the two plates are staggered diagonally to form a micro heat exchange channel. As shown in the figure, the diagonal interleaving means that two medium circulation grooves are crossed in a diagonal interleaving manner. In a further preferred embodiment, one media flow channel in one plate is interleaved with two or more media flow channels in the other plate. In the technical scheme, the medium circulation grooves on the two plates are diagonally staggered, the section of a single medium circulation groove can be semicircular, the junction point of the two medium circulation grooves is a rhombic cavity 53 formed by butting two semicircular oblique angles, the space of the rhombic cavity is larger than that of the medium circulation groove, and the two medium circulation grooves converge at the place. From this simultaneously, the medium circulation groove is the inner groovy, then protruding region between two adjacent medium circulation grooves is narrow plane, when two slab docks, narrow plane also is the laminating department 8 (welding point) of diagonally staggered constitution above-mentioned bellied face, preceding slab and the bellied 8 butt joints (welding) of laminating department of back slab form inseparable fixed point 81, and this inseparable fixed point 81 and rhombus chamber all around (upper and lower direction and left and right sides direction) equal interval setting, the effect that its produced is that two medium circulation grooves converge in the rhombus intracavity, then distribute to two adjacent small heat transfer passage 5 in by bellied inseparable fixed point 81 again, it is in turn with the reposition of redundant personnel to produce to converge, promote turbulent effect. In the above scheme, the medium flow channel is in a multi-segment zigzag shape (as shown in the figure, a W shape) or a corrugated shape, and the selection of the medium flow channel as the multi-segment zigzag shape should consider the limitation of the number of the zigzag angles of the multi-segment zigzag lines, which affects the medium flow resistance in the small heat exchange channels 5 on one hand, and reduces the area of the fluid heat exchange weakening area formed on the left and right side ends (the ends of the non-distribution channels and the collection channels) of the plate, i.e. the flow channel resistance and the number of the flow channels of the internal small heat exchange channels 5 are slightly different from those of the flow channels in the. In general, the angle degree of the medium flowing channel needs to be reasonably set in implementation. When the media channel is chosen to be corrugated, the amplitude and wavelength of the corrugations should be defined. Compared with the scheme (I), the scheme has the characteristics that the medium circulation grooves arranged on the single plates are not staggered, and only when two single plates are compositely connected, the formed micro heat exchange channels are staggered.
The embodiment relates to a micro-through plate which adopts an integrally formed and compounded scheme, simplifies the process, and improves the quality and the reliability. The inner side medium flow channel in the micro through plate consists of a distribution channel, a collection channel and mesh-shaped crossed micro heat exchange channels, and the micro heat exchange channels scatter media in the flow channel to form turbulent flow and turbulent flow. The path lengths of a plurality of medium channels from the medium inlet to the medium outlet are similar, and the small heat exchange channels which are uniformly distributed on the whole plate surface in a meshed and staggered mode further ensure that the medium fully utilizes the heat exchange surface, so that the maximization of the heat exchange effect is facilitated.
In addition to the above technical problems to be solved, the micro through plate also has the following characteristics;
1, at inboard machining distribution channel of monolithic slab, small heat transfer passageway, collection channel recess, form the arch on the slab lateral wall, constitute the recess between two adjacent archs in the outside, the unsmooth alternate outside heat transfer area that increases in the outside has promoted the heat transfer effect with external by a wide margin.
2, two plates of the micro-through plate are thin plates or ultrathin plates, no welding point is arranged outside, and the micro-through plate of nonferrous metal does not need post electrophoretic spraying and other treatments, thereby greatly improving the heat transfer speed and the heat exchange effect, saving energy, protecting environment and reducing the material consumption.
3, the micro-through plate has the advantages of ultrathin thickness, small volume, small water storage capacity, light weight, simple process, reliable quality, energy conservation, environmental protection, beautiful appearance, high heat exchange efficiency, low cost, particular suitability for heat exchange of low-temperature water at 40-60 ℃ and the like.
Example 2:
the present example relates to a heat exchanger comprising a microchannel plate as described in example 1.
Example 3:
as shown in fig. 7 and 8 (the direction of the arrow in the figure indicates the direction of air flow, and the hatched part of the label a indicates the wall), the present embodiment relates to a radiator. The radiator comprises a plurality of micro through plates; a plurality of microchannel plates are arranged in opposing parallel and spaced relationship, the microchannel plates being as described in example 1. The first medium enters the micro through plate, is distributed by the distribution channel to enter the reticular crossed micro heat exchange channels for sufficient turbulence, and then is collected by the collection channel to flow out; and when flowing through the tiny heat exchange channels, the heat exchange is carried out with the second medium of the heat exchange channels through the two outer heat exchange surfaces. As shown in the figure, two microchannel plates (which can be a plurality of plates) are connected in parallel through a pipeline; hot water enters the pipe connection 302 through the water inlet 301 and is then distributed to the media inlets 3 of the front and rear micro through plates 101, 102. The hot water entering the micro-through plate enters a plurality of micro-heat exchange channels 5 through the distribution channel 4, enters the liquid inlet pipeline 702 through the medium outlet 7 of the collection channel 6 after heat exchange, and flows out of the water outlet 701. Two outer side heat exchange surfaces of the front micro through plate 101 are respectively a concave-convex surface A, B, two outer side heat exchange surfaces of the rear micro through plate 102 are respectively a concave-convex surface C, D, a micro heat exchange channel naturally carries out convective heat exchange with indoor air through four concave-convex surfaces A, B, C, D, and simultaneously two surfaces A, D also exchange heat with the indoor air through radiation. The composite micro through plate is very thin, the micro heat exchange channels are uniformly distributed on the whole panel to form water curtain-shaped turbulence, and the areas of the A, B, C, D four concave-convex surfaces on the outer side of the micro through plate are very large, so that the heat transfer speed between the micro through plate and indoor air is high, and the heat exchange effect is excellent. Moreover, the micro-through plate is very thin and has high heat exchange efficiency, so that the indoor space occupied by the radiator is obviously reduced.
Example 4:
as shown in fig. 9 and 10 (the direction of the arrow in the figure indicates the direction of air flow, and the hatched portion of the label a indicates the wall), the present embodiment relates to an air conditioning terminal device, which comprises a plurality of micro-through plates; a plurality of microchannel plates are arranged in opposing parallel and spaced relationship, the microchannel plates being as described in example 1. The first medium enters the micro through plate, is distributed by the distribution channel to enter the reticular crossed micro heat exchange channels for sufficient turbulence, and then is collected by the collection channel to flow out; and when flowing through the tiny heat exchange channels, the heat exchange is carried out with the second medium of the heat exchange channels through the two outer heat exchange surfaces. As shown in the figure, two microchannel plates (which can be a plurality of plates) are connected in parallel through a pipeline; hot water enters the pipe connection 302 through the water inlet 301 and is then distributed to the media inlets 3 of the front and rear micro through plates 101, 102. The hot water entering the micro-through plate enters a plurality of micro-heat exchange channels 5 through the distribution channel 4, enters the liquid inlet pipeline 702 through the medium outlet 7 of the collection channel 6 after heat exchange, and flows out of the water outlet 701. Two outer side heat exchange surfaces of the front micro through plate 101 are respectively a concave-convex surface A, B, two outer side heat exchange surfaces of the rear micro through plate 102 are respectively a concave-convex surface C, D, a micro heat exchange channel naturally carries out convective heat exchange with indoor air through four concave-convex surfaces A, B, C, D, and simultaneously two surfaces A, D also exchange heat with the indoor air through radiation. The composite micro through plate is very thin, the micro heat exchange channels are uniformly distributed on the whole panel to form water curtain-shaped turbulence, and the areas of the A, B, C, D four concave-convex surfaces on the outer side of the micro through plate are very large, so that the heat transfer speed between the micro through plate and indoor air is high, and the heat exchange effect is excellent. Moreover, the micro-through plate is very thin and has high heat exchange efficiency, so that the indoor space occupied by the radiator is obviously reduced.
As shown in fig. 9 and 10, and on the basis of the above, a fan is arranged below the plurality of micro-through plates; the direction of the air flow (the direction of the flow of the second medium) generated by the fan is opposite to or the same as the direction of the flow of the first medium on the inner side of the micro-through plate, generally speaking, the two mediums participating in heat exchange have reverse convection, and the heat exchange effect is optimal. As shown in the figure, the fan comprises a motor 111 and a cross-flow fan blade 112 connected to the output end of the motor. In addition to the natural convection heat exchange and natural radiation heat exchange of air that can be achieved in example 3; this embodiment changes the air natural convection part into the forced convection form through the fan to promote heat exchange efficiency. The rotating speed of the fan is adjusted according to the indoor temperature to provide more heat (cold) indoors. The micro-through plate is provided with the fan, the fan can be arranged at the middle part, the bottom part or the top part of the micro-through plate, the fan increases the flow velocity of the second medium, and the heat exchange efficiency of the second medium and the first medium is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The little logical board is thin high-efficient heat transfer board, its characterized in that: the micro-through plate is formed by compounding two plate sheets, and the peripheries of the two plate sheets and the joint part of the middle bulge are tightly combined into a whole; the micro-through plate comprises an inner side medium flow passage and two outer side heat exchange surfaces; the inner side medium flow channel consists of a distribution channel, a collection channel and a reticular crossed micro heat exchange channel, wherein the inlet end of the micro heat exchange channel is communicated with the distribution channel, and the outlet end of the micro heat exchange channel is communicated with the collection channel; the medium enters the micro-through plate, is distributed by the distribution channel to enter the reticular crossed micro heat exchange channels for sufficient turbulence, exchanges heat with the outside through the two outer heat exchange surfaces, and then is collected by the collection channel to flow out;
the micro-through plate is formed by compounding two plates, and a medium inlet, a distribution channel, a micro heat exchange channel, a collection channel and a medium outlet can be respectively formed on any one plate and are butted with the other plate to form the micro-through plate; the two outer heat exchange surfaces of the micro-through plate are respectively a plane or a concave-convex surface; the distribution channel is provided with a medium inlet, and the collection channel is provided with a medium outlet; the path lengths of a plurality of medium channels from the medium inlet to the medium outlet are all similar; the convex joint parts among the micro heat exchange channels are polygonal, and the combined butt joints are arranged in a matrix shape; the medium flow channel between the butt joints is in a honeycomb shape.
2. A microchannel plate as claimed in claim 1, wherein: the distribution channel, the micro heat exchange channel and the collection channel on the single plate are integrally formed.
3. A microchannel plate as claimed in claim 1, wherein: when a distribution channel, a small heat exchange channel and a collection channel are punched on the inner side of the single plate, protrusions are formed on the outer side wall of the plate, a groove is formed between two adjacent protrusions on the outer side, and the heat exchange area is increased on the outer side heat exchange surface in a concave-convex alternate mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384022.7A CN109612300B (en) | 2018-11-20 | 2018-11-20 | Micro-through plate |
| PCT/CN2019/119674 WO2020103858A1 (en) | 2018-11-20 | 2019-11-20 | Microchannel plate, heating radiator and air conditioning terminal device having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384022.7A CN109612300B (en) | 2018-11-20 | 2018-11-20 | Micro-through plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109612300A CN109612300A (en) | 2019-04-12 |
| CN109612300B true CN109612300B (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811384022.7A Active CN109612300B (en) | 2018-11-20 | 2018-11-20 | Micro-through plate |
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| Country | Link |
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| CN (1) | CN109612300B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103858A1 (en) * | 2018-11-20 | 2020-05-28 | 英特换热设备(浙江)有限公司 | Microchannel plate, heating radiator and air conditioning terminal device having same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740443U (en) * | 2010-06-21 | 2011-02-09 | 四川宜宾江源化工机械制造有限责任公司 | Heat exchange plate for plate heat exchanger |
| CN102812321A (en) * | 2010-04-09 | 2012-12-05 | 英格索尔-兰德公司 | Formed microchannel heat exchanger |
| CN106052432A (en) * | 2016-04-27 | 2016-10-26 | 中石化石油工程机械有限公司研究院 | Micro-channel heat exchanger with cross runners |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6415860B1 (en) * | 2000-02-09 | 2002-07-09 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Crossflow micro heat exchanger |
| CN203980950U (en) * | 2014-07-31 | 2014-12-03 | 杭州沈氏节能科技股份有限公司 | A kind of novel micro-channel heat exchanger |
| CN106403640B (en) * | 2016-09-30 | 2019-03-19 | 赵耀华 | A kind of high efficiency plate low temp heating piece and its personal module |
| CN106802104B (en) * | 2017-01-13 | 2024-03-26 | 江门市东联热工设备有限公司 | Corrugated plate of heat exchanger |
-
2018
- 2018-11-20 CN CN201811384022.7A patent/CN109612300B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812321A (en) * | 2010-04-09 | 2012-12-05 | 英格索尔-兰德公司 | Formed microchannel heat exchanger |
| CN201740443U (en) * | 2010-06-21 | 2011-02-09 | 四川宜宾江源化工机械制造有限责任公司 | Heat exchange plate for plate heat exchanger |
| CN106052432A (en) * | 2016-04-27 | 2016-10-26 | 中石化石油工程机械有限公司研究院 | Micro-channel heat exchanger with cross runners |
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| CN109612300A (en) | 2019-04-12 |
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