CN101598517B - Integrated self-reinforced and compact type one-time surface heat exchanging plate and flow channel structure formed by same - Google Patents
Integrated self-reinforced and compact type one-time surface heat exchanging plate and flow channel structure formed by same Download PDFInfo
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- CN101598517B CN101598517B CN2009100406141A CN200910040614A CN101598517B CN 101598517 B CN101598517 B CN 101598517B CN 2009100406141 A CN2009100406141 A CN 2009100406141A CN 200910040614 A CN200910040614 A CN 200910040614A CN 101598517 B CN101598517 B CN 101598517B
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Abstract
The invention discloses an integrated self-reinforced and compact type one-time surface heat exchanging plate and a flow channel structure formed by same, the heat exchanging plate comprises a through-hole area, a fixing area, a stream guiding area, a marginal convex plate, and a heat exchanging area; the heat exchanging area is rectangle distributed with a concave shell and a convex shell of cone-shaped dome, the concave shell and the convex shell are distributed in rows to form a plurality of concave shell rows and convex shell rows parallel to the short sides of the rectangle, the concave shell rows and the convex shell rows are distributed on a base plate in an alternative manner, each concave shell and each convex shell respectively correspond to circular holes on the surface on which the base plate is located, the centers of the circular holes are distributed on a straight line parallel to the long sides of the rectangle, namely, all the convex shells and the concave shells are distributed in ranks. The flow channel is composed by overlaying of at least two heat exchanging plates. The heat exchanging plate of the invention has high compactness and small volume, can save metal consumption, and greatly improves heat transmitting coefficient; the structure is streamline, thus realizing small diameter of water conservancy and reducing the mechanical loss.
Description
Technical field
The present invention relates to be applicable to various types of heat-exchange apparatus of industries such as military equipment, oil, chemical industry, refrigeration, metallurgy, the energy and a self-reinforcing close-coupled heat exchanger plates of firing equipment.
Background technology
Energy-conservation, reduce discharging, consumption reduction is the fundamental state policy of China, the current challenge that faces in military equipment, low emission power power plant, petroleum refining, industrial furnace, heating furnace, Coal Chemical Industry, chemical fibre, cement industry heat recovery field is the high efficiency of improvement equipment and technological process, the economy of cost, makes the energy efficiency maximization.Development in recent years is rapid, and the application in industry is increasingly extensive.At present in various board-like heat-exchange apparatus and firing equipment, mainly contain plate type heat exchanger, baffle heat exchanger, plate-fin heat exchanger, circle dot mode width flow passage fully-soldering heat exchange plate, spiral heat exchanger of brazing plate type heat exchanger, complex wave card bundle heat exchanger, outer tunnel and welded plate type heat exchanger, integral braze-welded structure etc., mostly need the augmentation of heat transfer parts on support construction supports and the plate face mostly to adopt welding procedure between the heat exchanger plates.Accumulatingdust, protecting against shock, have high steady heat transfer characteristic simultaneously, be the problem that exists always; Plate type heat exchanger is owing to have advantages such as compactness height, pressure drop is little, resistance to shock is superior, patent situation both domestic and external and data of literatures show, make under low flow velocity that fluid has bigger disturbance between plate, and the research of the self-reinforced structure heat exchanger between plate is obviously also not nearly enough abundant.
Owing to many-sided reasons such as restriction of volume structure, the structure of plate type heat exchanger is generally all very thin, and it is main adopting suit and mosaic technology, fatal shortcoming is that the firm degree of augmentation of heat transfer parts and substrate surface combination can not guarantee, contact between plate is bad, and thermal resistance is big, and influence is conducted heat.
Summary of the invention
The objective of the invention is to overcome the prior art above shortcomings, the flow passage structure of integral type self-reinforcing compact type one-time surface heat exchanging plate and formation thereof is provided, the present invention can be widely used in the plate type heat exchanger.The present invention is achieved through the following technical solutions:
Integral type self-reinforcing compact type one-time surface heat exchanging plate of the present invention comprises edges of boards, edge boss, fixed area, through hole area, water conservancy diversion district and heat transfer zone, described heat transfer zone has a plurality of convex hulls and a plurality of recessed shell, these a plurality of convex hulls and a plurality of recessed shell and substrate are integrally formed, a plurality of convex hulls are divided into the side that many rows are distributed in substrate, a plurality of recessed shells are divided into the opposite side that many rows are distributed in substrate, parallel mutually by the row that convex hull forms with the row who becomes by recessed hull shape, all convex hulls and recessed shell are determinant and are distributed on the substrate, and line number is described row's number.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, all be formed as one between panel edges boss, fixed area, through hole area, water conservancy diversion district and the heat transfer zone, do not form by welding.Be provided with semicircle boss between through hole area and the water conservancy diversion district, the place is provided with through hole area at four angles of rectangular heat exchanger plate, is provided with heat transfer zone at the rectangular heat exchanger plate middle part, is provided with the water conservancy diversion district between heat transfer zone and the through hole area.The structure of heat transfer zone is: heat transfer zone is a rectangle, be distributed with the recessed shell and the convex hull on tapered ball top, convex hull and recessed shell in a row distribute respectively and form a plurality of convex hull row and recessed shell rows that are parallel to the rectangle minor face, convex hull row and recessed shell row are alternately distributed on substrate, each convex hull and each recessed shell be all corresponding circular hole on the plane at substrate place, and the central distribution of these circular holes is on the straight line parallel with the long limit of rectangular heat exchanger plate, and promptly all convex hulls and recessed shell are ranks and distribute.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, described convex hull profile is a taper ball top shape, and promptly the convex hull top is a spherical part, with another part of the convex hull of top rounding off be the last part of the conical removal vertex of a cone; Convex hull is consistent with the profile of recessed shell.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, described heat transfer zone is a rectangle, and convex hull and recessed shell in a row distribute respectively and form a plurality of convex hull row and recessed shell rows that are parallel to the rectangle minor face, and convex hull row and recessed shell row are alternately distributed on substrate; Each convex hull and each recessed shell be all corresponding circular hole on the plane at substrate place, and the central distribution of these circular holes is being grown the parallel straight line in limit with rectangle, promptly all convex hulls and recessed shell are ranks and distribute, and the distribution of convex hull and recessed shell is about the line symmetry at rectangle two minor face centers.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, on the direction parallel with the long limit of rectangle, the distance between the center of circle of adjacent two circular holes is 4～120mm; On the parallel direction of rectangle minor face, the distance between the center of circle of adjacent two circular holes is 4～140mm.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, described conical bus and substrate surface angle are 45 °～75 °, and the radius of described sphere is 2.5～22mm, and convex hull or recessed shell height are 2～16mm, and shell is thick to be 0.5～6mm.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, the consistency of thickness of substrate thickness and concavo-convex shell.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, described recessed shell of panel edges boss aspect ratio or convex hull height are low, and panel edges boss height is 1～15mm, and thickness is 20～40mm; The ratio on described rectangle minor face and long limit is 2: 1～4: 1.
In the above-mentioned integral type self-reinforcing compact type one-time surface heat exchanging plate, described recessed shell and convex hull are formed through two-sided punching press by substrate.
The flow passage structure that constitutes by above-mentioned heat exchanger plates, it is formed by stacking by at least two described heat exchanger plates, in recessed shell on the heat transfer zone of adjacent two heat exchanger plates and the convex hull row number, the line number unanimity, and columns differs row, and the concavo-convex shell columns on the heat transfer zone of all heat exchanger plates differs row at most.
In the above-mentioned flow passage structure, the recessed shell top of upper strata heat exchanger plates and lower floor's heat exchanger plates substrate contacts, the convex hull top of lower floor's heat exchanger plates and upper strata heat exchanger plates substrate contacts.The preparation method of the compact one-time surface heat exchanging plate of integral type self-reinforcing is: described heat exchanger plates adopts corrosion resistant plate, magnesium alloy plate, nickel plate, titanium plate etc., on substrate, produce concavo-convex shell, guiding gutter, panel edges boss and semicircle sealing through hole boss by two-sided punching press or other pressure casting method, produce through hole and fixing hole by drill bit.
The substrate of heat exchanger plates of the present invention and convex hull and recessed shell partly are an integral body, both had compact concaveconvex structure, big concavo-convex area, can significantly improve heat transfer rate and enhancing heat transfer again, heat exchanger plates is put contact mutually during work, playing rigidity strengthens and the self-supporting effect, concaveconvex structure can satisfy the requirement of working under augmentation of heat transfer and the high pressure operating mode preferably helping augmentation of heat transfer than forming turbulent flow under the low reynolds number simultaneously.Compared with prior art, the present invention has following advantage and beneficial effect:
(1) concavo-convex shell compactness height has been expanded heat transfer surface area one time, and concavo-convex shell evenly in a row distributes along the plate face, and jog and substrate one form special runner, are helping augmentation of heat transfer than forming turbulent flow under the low reynolds number;
(2) make the flow pattern change from structure, when both having realized the small flow channels hydraulic diameter, reduced mechanical loss again;
(3) design of heat exchanger plates fovea superior convex hull shape of the present invention, when making fluid flow through the shell surfaces externally and internally, in the level of disruption aggravation, the fluid that flows through the shell inner surface does not form the dead band yet in shell, thereby reaches the attenuate boundary layer, plays the effect of augmentation of heat transfer.
(4) because the heat exchanger plates jog is to form by two-sided punch process, and jog and heat exchanger plates have a style of one's own, therefore between concavo-convex shell and substrate, there is not thermal contact resistance, thereby eliminates the processing thermal resistance, make total thermal resistance reduce greatly;
Heat exchanger plates is put contact mutually when (5) working, and realizes supporting mutually by jog between plate and the plate, plays rigidity and strengthens and the self-supporting effect, and stronger superiority is being arranged aspect the bearing strength stress; ,
(6) design of the gradient can prevent to indulge and flow through the journey dirt accumulation, is convenient to the dust cleaning during maintenance.
(7) the present invention is by the appropriate design and the layout of concavo-convex shell, and heat transfer area increases greatly, and the concavo-convex heat exchanger plates of monoblock type has very big specific area, has strengthened the convection heat transfer' heat-transfer by convection performance greatly, can use in fields such as derived energy chemical, refrigeration, electronic radiations.
Description of drawings
Fig. 1 is the structure front schematic view of a kind of heat exchanger plates in this specific embodiment, and among the figure, 106,107 is the heat exchanger plates symmetry axis.
Fig. 2 is the structure front schematic view of another kind of heat exchanger plates in this specific embodiment, and among the figure, 206,207 is the heat exchanger plates symmetry axis.
Fig. 3 is the local enlarged diagram of the heat transfer zone of heat exchanger plates shown in Figure 1, and wherein the distribution of concavo-convex shell is about symmetry axis 106,107 symmetries.
Fig. 4 is the local enlarged diagram of the heat transfer zone of heat exchanger plates shown in Figure 2, and wherein the distribution of concavo-convex shell is about symmetry axis 206,207 symmetries.
Fig. 5 analyses and observe enlarged diagram for the local B-B of the concavo-convex shell of heat exchanger plates heat transfer zone in the embodiment.
Fig. 6 analyses and observe enlarged diagram for the local A-A of the concavo-convex shell of heat exchanger plates heat transfer zone in the embodiment.
Among the figure, 1 semicircle boss, 2 fixing holes, 3 guiding gutters, 4 convex hulls, 5 recessed shells, 6 cold fluid through holes, 7 hot fluid through holes, 8 substrates, 101 through hole areas, 102 edge lug boss, 103 heat transfer zone, 104 fixed areas, 105 water conservancy diversion districts.
The specific embodiment
Below in conjunction with accompanying drawing and enforcement the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, a kind of integral type self-reinforcing compact type one-time surface heat exchanging plate, its structure is: through hole area 101, edge lug boss 102, heat transfer zone 103, fixed area 104 and water conservancy diversion district 105.The rectangular heat exchanger plate edge is provided with edge lug boss 102, and thickness 20～40mm highly is 1～15mm; Place, four angles in rectangular heat exchanger plate is provided with through hole area 101, and through-hole diameter is 1: 3～1: 5 with the ratio of rectangular slab minor face; Be provided with water conservancy diversion district 105 with through hole area 101 adjacents, be provided with semicircle boss 1 between through hole 6 and through hole 7 and the water conservancy diversion district, the outward flange radius of semicircle boss 1 is 1: 2～1: 4 with the ratio of rectangular heat exchanger plate minor face, and thickness is 20～40mm, highly is 0.5mm～14mm; Water conservancy diversion district 105 is provided with the guiding gutter 3 of intersection, and guiding gutter 3 is about the line symmetry of rectangular heat exchanger plate minor face mid point, and guiding gutter 3 degree of depth are 0.2～2mm; Rectangular heat exchanger plate plate upper and lower is provided with fixing hole 101, pore size 5cm～8cm.Described rectangular heat exchanger plate edge lug boss 102 is lower than convex hull 4 and recessed shell 5, and semicircle boss 1 is lower slightly than the edge lug boss 102 of rectangular slab.
As shown in Figure 2, convex hull 4 and recessed shell 5 that the rectangular heat exchanger plate both sides are distributing respectively and are being arranged in parallel, the radius of convex hull 4 and recessed shell 5 corresponding circular hole on substrate 8 is 2～16mm, the distance on the substrate 8 between two centers of circle: line-spacing 4～120mm, row are apart from 4～140mm; Convex hull 4 and recessed shell 5 arrangement modes that described heat transfer zone 103 distributes is characterized by: convex hull 4 and recessed shell 5 in a row distribute respectively and form a plurality of convex hull row and recessed shell rows that are parallel to the rectangle minor face, and convex hull row and recessed shell row are alternately distributed on substrate 8; Each convex hull 4 and each recessed shell 5 be all corresponding circular hole on the plane at substrate 8 places, and the central distribution of these circular holes is on the straight line parallel with the long limit of rectangle, promptly all convex hulls 4 are ranks with recessed shell 5 and distribute, and the distribution of convex hull 4 and recessed shell 5 is about the line symmetry at rectangle two minor face centers.
As Fig. 3, substrate 8 is thick to be 0.5～6mm, and convex hull 4 and recessed shell 5 highly are 2～16mm, and described convex hull 4 and recessed shell 5 profiles are taper ball top shape, spherical parts that to be convex hull 4 tops be, with another part of the convex hull 4 of top rounding off be the last part of the conical removal vertex of a cone; Convex hull 4 is consistent with the profile of recessed shell 5; Described conical bus and substrate 8 surperficial angles are 45 °～75 °; All concavo-convex thickness of the shell unanimities.
The heat exchanger runner that can make by a plurality of heat exchanger plates illustrated in figures 1 and 2.Adopt three heat exchanger plates to form runner in the present embodiment.Its structure is: three heat exchanger plates superpose at interval, in convex hull 4 on the heat transfer zone 103 of adjacent two heat exchanger plates and the recessed shell 5 row numbers, the line number unanimity, and columns differs row, and the concavo-convex shell columns on the heat transfer zone 103 of all heat exchanger plates differs row at most; Cold fluid through hole 6 is the diagonal angle and distributes, and all the other two diagonal angles are distributed with hot fluid through hole 7; Add seal washer on the rectangular heat exchanger plate edge lug boss 102; On the plate face that cold fluid is arranged between two heat exchanger plates, the semicircle boss 1 at cold fluid through hole 6 places is not established seal washer, and the semicircle boss 1 at hot fluid through hole 7 places is provided with seal washer; On the plate face that hot fluid is arranged between two heat exchanger plates, do not establish seal washer on the semicircle boss 1 at hot fluid through hole 7 places, establish seal washer on the semicircle boss 1 at cold fluid through hole 6 places.
With a plurality of described integral type self-reinforcing compact type one-time surface heat exchanging plate stacks, two ends are provided with pressing plate, fix and fix by fixed bar with fastening bolt, can be made into heat exchanger, its flow passage structure is: the top of the recessed shell 5 of upper strata integral type self-reinforcing close-coupled heat exchanger plates contacts with the substrate 8 of lower floor's integral type self-reinforcing compact type one-time surface heat exchanging plate, the top of lower floor's integral type self-reinforcing compact type one-time surface heat exchanging plate convex hull 4 contacts with the substrate 8 on upper strata, the height of runner is the height of convex hull 4 and recessed shell 5, therefore strengthened the self-strengthening between the heat exchanger plates, and reduced volume and saved the space.Convex hull 4 and recessed shell 5 have increased the heat exchange area of runner, convex hull 4 between the adjacent heat exchanger plates and recessed shell 5 staggered patterns, increased the level of disruption of fluid, under the lower situation of flow velocity, form high velocity turbulent flow, thereby improved the heat exchange efficiency of integral type self-reinforcing compact type one-time surface heat exchanging plate.
Claims (5)
1. integral type self-reinforcing compact type one-time surface heat exchanging plate, comprise panel edges boss, fixed area, through hole area, water conservancy diversion district and heat transfer zone, it is characterized in that described heat transfer zone has a plurality of convex hulls and a plurality of recessed shell, these a plurality of convex hulls and a plurality of recessed shell and substrate are integrally formed, a plurality of convex hulls are divided into the side that many rows are distributed in substrate, a plurality of recessed shells are divided into the opposite side that many rows are distributed in substrate, parallel mutually by the row that convex hull forms with the row who becomes by recessed hull shape, all convex hulls and recessed shell are determinant and are distributed on the substrate, and line number is described row's number; Described convex hull profile is a taper ball top shape, and promptly the convex hull top is a spherical part, with another part of the convex hull of top rounding off be the last part of the conical removal vertex of a cone; Convex hull is consistent with the profile of recessed shell; Described heat transfer zone is a rectangle, and convex hull and recessed shell in a row distribute respectively and form a plurality of convex hull row and recessed shell rows that are parallel to the rectangle minor face, and convex hull row and recessed shell row are alternately distributed on substrate; Each convex hull and each recessed shell be all corresponding circular hole on the plane at substrate place, and the central distribution of these circular holes is on the straight line parallel with the long limit of rectangle, promptly all convex hulls and recessed shell are ranks and distribute, and the distribution of convex hull and recessed shell is about the line symmetry at rectangle two minor face centers; The consistency of thickness of substrate thickness and concavo-convex shell; Described conical bus and base plan angle are 45 °～75 °, and the radius of described sphere is 2.5～22mm, and convex hull or recessed shell height are 2～16mm, and shell is thick to be 0.5～6mm.
2. heat exchanger plates according to claim 1 is characterized in that the distance between the center of circle of adjacent two circular holes is 4～120mm on the direction parallel with the long limit of rectangle; On the direction parallel with the rectangle minor face, the distance between the center of circle of adjacent two circular holes is 4～140mm.
3. require described heat exchanger plates according to right 1, it is characterized in that described recessed shell of panel edges boss aspect ratio or convex hull height are low, panel edges boss height is 1～15mm, and thickness is 20～40mm; The ratio of long limit of described rectangle and minor face is 2: 1～4: 1.
4. according to right 1～3 each described heat exchanger plates, it is characterized in that described recessed shell and convex hull are formed through two-sided punching press by substrate.
5. the flow passage structure that constitutes by the described heat exchanger plates of claim 1, it is characterized in that being formed by stacking by at least two described heat exchanger plates, in recessed shell on the heat transfer zone of adjacent two heat exchanger plates and the convex hull row number, the line number unanimity, and columns differs row, and the concavo-convex shell columns on the heat transfer zone of all heat exchanger plates differs row at most; The recessed shell top of upper strata heat exchanger plates and lower floor's heat exchanger plates substrate contacts, the convex hull top of lower floor's heat exchanger plates and upper strata heat exchanger plates substrate contacts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100406141A CN101598517B (en) | 2009-06-26 | 2009-06-26 | Integrated self-reinforced and compact type one-time surface heat exchanging plate and flow channel structure formed by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100406141A CN101598517B (en) | 2009-06-26 | 2009-06-26 | Integrated self-reinforced and compact type one-time surface heat exchanging plate and flow channel structure formed by same |
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| Publication Number | Publication Date |
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| CN101598517A CN101598517A (en) | 2009-12-09 |
| CN101598517B true CN101598517B (en) | 2011-09-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2502932C2 (en) * | 2010-11-19 | 2013-12-27 | Данфосс А/С | Heat exchanger |
| CN103424014A (en) * | 2012-05-15 | 2013-12-04 | 杭州三花研究院有限公司 | Plate heat exchanger |
| CN105571358B (en) * | 2015-12-30 | 2018-06-05 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of primary surface heat exchanger |
| EP3598046B1 (en) * | 2018-07-20 | 2023-05-17 | Valeo Vyminiky Tepla, s.r.o. | Heat exchanger plate and heat exchanger comprising such a heat exchanger plate |
| CN110530179B (en) * | 2019-08-12 | 2021-02-12 | 西安交通大学 | Symmetrical bubbling type plate heat transfer element |
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