CN101566439A - Scroll-plate heat exchanger with compact honeycomb structure - Google Patents
Scroll-plate heat exchanger with compact honeycomb structure Download PDFInfo
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- CN101566439A CN101566439A CNA2009100395999A CN200910039599A CN101566439A CN 101566439 A CN101566439 A CN 101566439A CN A2009100395999 A CNA2009100395999 A CN A2009100395999A CN 200910039599 A CN200910039599 A CN 200910039599A CN 101566439 A CN101566439 A CN 101566439A
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- plate
- heat exchanger
- scroll
- spiral
- honeycomb structure
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
Abstract
A scroll-plate heat exchanger with compact honeycomb structure comprises an inner cylinder (1) and an outer cylinder (4); an annular inner-cavity is formed between the inner cylinder (1) and the outer cylinder (4) and internally provided with a heat exchanging mechanism; the heat exchanging mechanism is formed by rolling two layers of scroll-plate (2) and depressed pits (16) are pressed at intervals on each layer of scroll-plate (2); and a cold medium channel (10) and a hot medium channel (11) are formed between the layers of the scroll-plate (2) by virtue of support of the depressed pits (16) and are respectively communicated with inlets and outlets of cold medium and hot medium. The scroll-plate heat exchanger has the advantages of high operation-pressure bearing property, energy-conserving property, high efficiency, easy manufacturing process, low cost and the like. The scroll-plate heat exchanger is applicable to industrial production of petrifaction industry, light industry, pharmaceutical industry, food industry and the like, and especially to production environment requiring high work-medium pressure.
Description
Technical field
The present invention relates to a kind of heat exchanger, is a kind of Scroll-plate heat exchanger with compact honeycomb structure specifically.
Technical background
Heat exchanger is widely used in industrial production and the daily life as the common processing equipment of heat exchange between a kind of different medium, and each of its performance part raising all can bring extremely huge economy and society benefit.Over nearly 20 years, under countries in the world scientist's joint efforts, heat exchanger and correlation technique develop rapidly, and the development that particularly possesses the high-efficiency compact formula heat exchanger of advantages such as heat exchange efficiency height and volume are little has obtained encouraging progress.But meanwhile,, all both possessed self advantage even belong to all kinds of heat exchangers of efficient energy-saving close-coupled, there is certain shortcoming again, how designing and make a kind of their advantages of receiving, overcome a class new type heat exchanger of its shortcoming, is the target that those skilled in the art pursue.
Compact heat exchanger mainly contains plate type heat exchanger, spiral heat exchanger and plate-fin heat exchanger.
Plate type heat exchanger is by one group of stainless steel rectangle thin plate sheet and step up support and form.The core component of plate type heat exchanger is to strike out concavo-convex undulatory heat exchange plate, the tortuous changeable runner that is superimposed together and forms by polylith compression moulding convex-concave plate, not only increase heat transfer area and made the fluid turbulization effectively, reduced the thermal resistance of liquid film; Plate is with the thin plate manufacturing of 0.6～0.8mm, and not only save metal material, but also reduced the thermal resistance of wall, thereby the very light in weight of plate type heat exchanger unit's heat-transfer area, overall heat-transfer coefficient is very high, is about 3.5 times of conventional pipe heat exchanger; Periphery gasket seal between two adjacent plates, assembling is flexible, easy accessibility, help maintenance and cleaning, but this heat exchanger pad brings important disadvantages, is subjected to the restriction of gasket material performance, and operating pressure and operating temperature can not be too high.Thereby periphery occurred between plate and be welded to connect the plate type heat exchanger that replaces washer sealing, but the operating pressure that allows also is limited, because the plate groups of plate type heat exchanger is two blocks of rectangle massive plates clamping of connecting with long bolt, under high pressure, large scale rectangular flat desired thickness and screw rod required size are uneconomic, thereby plate type heat exchanger generally only is used for pressure below 1.6MPa and the less situation for the treatment of capacity.
Spiral-plate heat exchanger is to be formed by two certain parallel thin coiled sheet systems in interval.The metallic plate of two thick 3～6mm forms two form concentric spirals type passages, is welded with spacing column between two plates to keep channel pitch, is welded with cover plate in the spiral plate both sides, and cold fluid and hot fluid by two passes, carries out heat exchange by thin plate respectively.Two fluids are counter-current operation, and mean temperature difference is big, help the abundant recovery waste heat of spiral-plate heat exchanger.
Spiral-plate heat exchanger allows to select for use higher flow velocity, fluid is because the effect of centrifugal inertial force promptly reaches turbulent flow, so heat transfer coefficient is not low yet under lower Reynolds number, less scaling and stop up, thereby the helical duct both sides are adopted the non-disconnectable structure of welded seal mostly.Compare with plate type heat exchanger, fluid flows not to be needed repeatedly to transfer, and resistance drop is lower, is easy to maximize, and can adopt the carbon steel manufacturing.But the same with plate type heat exchanger, pressure medium is unsuitable too high.The plate of spiral plate is that part is subjected to interior pressure, part to be subjected to the housing of external pressure, what the spiral plate in the high-pressure medium inboard bore is external pressure, for the maximum working pressure of the spiral plate external pressure unstability of avoiding limited thickness is limited, especially larger-diameter the time, therefore, generally only be used for the occasion that interior pressure is not higher than 2MPa.
Plate sticks up the heat exchanger core that the formula heat exchanger is the cramped construction formed with foils such as fins, dividing plate, strip of paper used for sealing, places the heat exchanger with the shell that can make the import and export passage that cold fluid and hot fluid isolates mutually.Adopt soldering to connect between fin, dividing plate, the core of heat exchanger is the spitting image of the honeycomb of honeycomb.The honeycomb size is little, can bear the operating pressure up to 5MPa.The thickness of fin, dividing plate can be very thin, and structure is very compact, and every cubic metre equipment can provide 2500～4370m
2Heat transfer area, the weight of unit heat-transfer area can reach 1/10th of common pipe heat exchanger.Heat transfer coefficient is higher several times or tens times than tubular heat exchanger.
But shortcoming is: structure is complicated, and machine-shaping specification requirement height needs special processing equipment, and the cost height, can not maximize, and two fluid flow directions are adverse current entirely, has influenced the logarithmic mean temperature difference (LMTD) size.
Summary of the invention
It is low than simply compact, machine-shaping convenience, cost to the purpose of this invention is to provide a kind of structure, has the Scroll-plate heat exchanger with compact honeycomb structure of the advantage of plate type heat exchanger, spiral heat exchanger and plate-fin heat exchanger concurrently.
Scroll-plate heat exchanger with compact honeycomb structure provided by the invention, form annular cavity between the inner barrel of this heat exchanger, the outer cylinder body, the inside is equipped with heat exchange mechanisms, this heat exchange mechanisms is rolled by two-layer spiral plate and forms, be pressed with pit on every helical layer plate at interval, import and export connection with hot and cold medium respectively by the hot and cold medium channel of pit supporting formation between spiral flaggy and the layer.
Pit between the two-layer spiral plate staggers respectively.
Separated by central dividing plate in the inner barrel, there is shrouding at two ends, form thermal medium inlet chamber and cold medium back flow chamber respectively, and the thermal medium inlet chamber connects the thermal medium import, and cold medium back flow chamber connects cold media outlet.
The annular cavity two ends connect sealing by the steel root bead that embeds between two spiral plate interlayers and spiral plate and inner barrel, outer cylinder body.
The present invention has that structural strength is good, heat transfer efficiency is high, compact conformation degree height, characteristics such as of equal value cheap, thereby possesses the operating pressure of bearing height, efficient energy-saving, little, the low cost and other advantages of manufacture difficulty.Being more suitable for the demanding production environment of industrial production, particularly working medium pressure such as petrochemical industry, light industry, medicine and food uses.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the expanded view of spiral plate of the present invention;
Fig. 4 is the cutaway view of Fig. 3;
Fig. 5 is the cutaway view of the A part of Fig. 1;
Fig. 6 is the cutaway view of the B part of Fig. 1;
Fig. 7 is the cutaway view of the C part of Fig. 2;
Fig. 8 is the cutaway view of the D part of Fig. 2.
The specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Scroll-plate heat exchanger with compact honeycomb structure provided by the invention, form annular cavity between the inner barrel 1 of this heat exchanger, the outer cylinder body 4, the inside is equipped with heat exchange mechanisms, this heat exchange mechanisms is rolled by two-layer spiral plate 2 and forms, and spiral plate 2 adopts corrosion resistant plate, thickness of slab 0.5～1.0mm, be pressed with pit 16 at interval on every helical layer plate 2, its expanded view is seen Fig. 7, Fig. 8.Import and export connection with hot and cold medium respectively by the hot and cold medium channel 10,11 of pit 16 supportings formation between 2 layers of spiral plates and the layer.
1 li of inner barrel is separated by central dividing plate 5, and there is shrouding 14 at two ends, form thermal medium inlet chamber 6 and cold medium back flow chamber 8 respectively, and thermal medium inlet chamber 6 connects thermal medium import 7, and cold medium back flow chamber 8 connects cold media outlet 13.Cold medium import 3 is opened in outer cylinder body 4 sides, connects cold media outlet 13 through cold medium channel 10, cold medium back flow chamber 8; Thermal medium import 7 is connected the thermal medium outlet of opening in outer cylinder body 4 sides through thermal medium inlet chamber 6, hot media channel 11, and the thermal medium outlet has two, and one of them is not condenser outlet 9, and another is a condensate outlet 12.
The annular cavity two ends are by steel root 15 welded seals that embed 4 of 2 of two spiral flaggies and spiral plate 2 and inner barrel 1, outer cylinder bodies.
Among the present invention the spiral plate of heat-transfer surface used instead similar to the plate type heat exchanger heat transfer plate but have essential distinction the thin corrosion resistant plate with pit, the edge forming limit rolls, the interlayer gap just in time equals pit 16 degree of depth, so respectively the stainless sheet steel with pit 16 twists in together tightly, constitute and look like a spiral-plate heat exchanger on a kind of macroscopic view, and (heat transfer unit) angle sees it is a cellular cramped construction from microcosmic, has not only resembled board-like but also resembles the compact heat exchanger of plate-fin.
The structure of the inside and outside cylindrical shell among the present invention, shrouding, central dividing plate and manufacturing and common spiral-plate heat exchanger preferably all adopt the stainless steel material manufacturing without any difference.
Fixed spiral-plate heat exchanger round steel weldering hermetically-sealed construction in end commonly used is adopted in sealing between the heat exchanger heat transfer face.
Operation principle: hot and cold two kinds of places that fluid carries out heat exchange are provided, and cold fluid obtains heat by heat transmission equipment, and hot fluid then provides heat.The main heat transfer element of Scroll-plate heat exchanger with compact honeycomb structure is the thin corrosion resistant plate with load mould 16, and fluid passes through in the runner between the plate that the thin corrosion resistant plate of load mould 16 rolls, and evokes strong turbulent flow under the effect of flow velocity.Experiment showed, as Re and count to when reaching 200 that fluid just has been in turbulence state between plate.By heat transfer principle as can be known, when fluid is turbulent flow, be easy to destroy the boundary layer of fluid, significantly reduce thermal resistance, thus augmentation of heat transfer effectively.
The present invention is because this novel honeycomb spiral-plate heat exchanger external structure has been got rid of massive plate, the not withstand voltage shortcoming of king-bolt syndeton of plate type heat exchanger, received the cylindrical structure of common spiral-plate heat exchanger shell can bear high interior advantage of pressing, structural strength is good, can bear elevated pressures.
On the internal structure, it has inherited the nest groove structure of heat exchange plate for plate heat exchanger and the withstand voltage advantage of internal cellular structure of plate-fin heat exchanger, has got rid of the shortcoming that can not bear high pressure that common spiral-plate heat exchanger spiral plate causes because of the external pressure destabilization problems.Thisly just be distributed in the honeycomb heat exchanger a large amount of intensive cellular units, improved the stress of spiral plate, improved the intensity of spiral plate greatly.Even plate is very thin, also can realize the good advantage of inner structural strength of not only withstand voltage but also anti-unstability.
The present invention is because this structure honeycomb spiral plate can be very thin, 0.5～1.0mm only, and the heat transfer resistance of thin plate on thickness direction is very little, can effectively improve the heat transfer efficiency of heat exchanger integral body.
This thickly dotted honeycomb is distributed in whole heat exchanger inside, and contact point is close, has both increased heat transfer area, makes two kinds of abundant contact heat-exchangings of heat transfer medium again.
The fluid pit 16 of flowing through has improved the flow regime of fluid, through flowing to and flow velocity with changing after pit 16 contacts, collides, produces flow-disturbing, augmentation of heat transfer.
The fluid helical duct of flowing through has kept smooth, smooth flow along helical duct, and fluid is zig zag and conduct heat " dead angle " not.
This honeycomb heat exchanger plate spacing is little, can reach 3.0～4.0mm, two kinds of fluid fully contacts in runner, and central fluid is few, and simultaneously, little spiral plate spacing increases the runner flow velocity, can be near the plate type heat exchanger heat transfer coefficient.
The present invention since this honeycomb spiral-plate heat exchanger drawn the plate type heat exchanger runner can very narrow advantage, more than the wide 10mm of spiral-plate heat exchanger runner by routine, can reduce to about 4.0mm, under same heat exchange area, volume can dwindle several times, so several times of also corresponding increases of compactness.In addition, it has overcome the deficiency of plate type heat exchanger and plate-fin heat exchanger rectangular structure, rolls into cylindrical shape by winding, can accomplish that heat transfer area is very big, but it is very little to take up space, compact conformation degree height.
The intensity of this honeycomb heat exchanger not merely depends on spiral plate thickness, the change of version improves heat exchanger intensity greatly, as previously mentioned, cellular unit in the spiral plate can bear very big intensity, therefore thickness of slab can be selected thin plate for use, save material, in light weight, bulk density and unit heat transfer area weight all can be done very for a short time.Inventor's suggestion, the spiral thickness of slab selects for use 0.8～1.0mm to get final product usually.Spiral sheet material is too thin to have little significance to commercial Application if select, and too thin material ton unit price expense is high on the contrary.
This heat exchanger internal cellular structure does not need welding, and is more superior than plate-fin heat exchanger, and it has overcome the influence that welding factor heat exchanging device workmanship brings; And approved product, finished product mould can reuse, the ram efficiency height, and tissue is produced in batches, can enhance productivity, and comprehensive manufacturing cost is little, reduces investment outlay.
The invention of Scroll-plate heat exchanger with compact honeycomb structure, implementation structure is light and handy, compact, efficient, can bear high pressure, province The advantages such as material and cost are low.
Spiral plate roll-forming of the present invention is different from common spiral-plate heat exchanger, requires mutually to be close to one between plate and the plate Play mutually supporting, to form honeycomb. Even the main equipment manufacturing should not have too big difficulty yet. China is at roll bending Accumulated experience for many years on the formula high-pressure bottle manufacturing technology, large, honeycomb spiral-plate heat exchanger spiral plate roll-forming can To use for reference the experience of rolled plate high-pressure bottle manufacturing technology, different is that the thin plate that the rolled plate high-pressure bottle requires to roll tightly is several The single flat steel plate of individual millimeters thick, and the spiral plate that the burner honeycomb spiral sheet heat exchanger requires to roll tightly is two-layer the only thick of concavo-convex hole that have Stainless sheet steel about 1mm. If distance between plates is 5mm, then every two-layer coiled sheet one encloses, and diameter will increase 20mm, The strain of the thin plate section of no pit is enough to satisfy the requirement that rolls of vary in diameter.
Claims (4)
1, a kind of Scroll-plate heat exchanger with compact honeycomb structure, the inner barrel [1], the outer cylinder body that it is characterized in that this heat exchanger form annular cavity between [4], the inside is equipped with heat exchange mechanisms, this heat exchange mechanisms is rolled by two-layer spiral plate [2] and forms, every helical layer plate [2] is gone up the interval and is pressed with pit [16], imports and exports connection with hot and cold medium respectively by pit [16] supporting formation hot and cold medium channel [10], [11] between spiral plate [2] layer and the layer.
2, Scroll-plate heat exchanger with compact honeycomb structure according to claim 1 is characterized in that the pit [16] between the two-layer spiral plate [2] staggers respectively.
3, Scroll-plate heat exchanger with compact honeycomb structure according to claim 1, it is characterized in that inner barrel [1] lining separated by central dividing plate [5], there is shrouding [14] at two ends, form thermal medium inlet chamber [6] and cold medium back flow chamber [8] respectively, thermal medium inlet chamber [6] connects thermal medium import [7], and cold medium back flow chamber [8] connects cold media outlet [13].
4, Scroll-plate heat exchanger with compact honeycomb structure according to claim 1 is characterized in that the annular cavity two ends are by steel root [15] welded seal that embeds between two spiral plates [2] interlayer and spiral plate [2] and inner barrel [1], outer cylinder body [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100395999A CN101566439A (en) | 2009-05-15 | 2009-05-15 | Scroll-plate heat exchanger with compact honeycomb structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100395999A CN101566439A (en) | 2009-05-15 | 2009-05-15 | Scroll-plate heat exchanger with compact honeycomb structure |
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| CN101566439A true CN101566439A (en) | 2009-10-28 |
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| CNA2009100395999A Pending CN101566439A (en) | 2009-05-15 | 2009-05-15 | Scroll-plate heat exchanger with compact honeycomb structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236351B (en) * | 2014-09-03 | 2016-07-06 | 兰州兰洛炼化设备有限公司 | Fat pipe, uiform section runner spiral plate type cooler |
| CN110160381A (en) * | 2019-06-11 | 2019-08-23 | 浙江金龙自控设备有限公司 | A kind of spiral-plate heat exchanger |
| CN110186301A (en) * | 2019-05-13 | 2019-08-30 | 常州大学 | A kind of new type helical plate heat exchanger |
| CN111981879A (en) * | 2020-07-29 | 2020-11-24 | 扬州派斯特换热设备有限公司 | Welding assembly process for plate heat exchanger unit |
| CN114857959A (en) * | 2022-05-20 | 2022-08-05 | 盐城工学院 | Heat exchange device of corrugated surface spiral plate type heat exchanger |
-
2009
- 2009-05-15 CN CNA2009100395999A patent/CN101566439A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236351B (en) * | 2014-09-03 | 2016-07-06 | 兰州兰洛炼化设备有限公司 | Fat pipe, uiform section runner spiral plate type cooler |
| CN110186301A (en) * | 2019-05-13 | 2019-08-30 | 常州大学 | A kind of new type helical plate heat exchanger |
| CN110160381A (en) * | 2019-06-11 | 2019-08-23 | 浙江金龙自控设备有限公司 | A kind of spiral-plate heat exchanger |
| CN111981879A (en) * | 2020-07-29 | 2020-11-24 | 扬州派斯特换热设备有限公司 | Welding assembly process for plate heat exchanger unit |
| CN114857959A (en) * | 2022-05-20 | 2022-08-05 | 盐城工学院 | Heat exchange device of corrugated surface spiral plate type heat exchanger |
| CN114857959B (en) * | 2022-05-20 | 2022-12-27 | 盐城工学院 | Heat exchange device of corrugated surface spiral plate type heat exchanger |
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Effective date of registration: 20091204 Address after: 162, Guandu Road, Guangdong, Maoming Province, China: 525000 Applicant after: Maoming Shai Hua Dongcheng Chemical Co., Ltd. Co-applicant after: East China University of Science and Technology Address before: 162, Guandu Road, Guangdong, Maoming Province, China: 525000 Applicant before: Maoming Shihua Dongcheng Chemical Industry Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20091028 |