CN100489432C - Novel slab type spiral heat exchanger - Google Patents
Novel slab type spiral heat exchanger Download PDFInfo
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- CN100489432C CN100489432C CNB2007100779260A CN200710077926A CN100489432C CN 100489432 C CN100489432 C CN 100489432C CN B2007100779260 A CNB2007100779260 A CN B2007100779260A CN 200710077926 A CN200710077926 A CN 200710077926A CN 100489432 C CN100489432 C CN 100489432C
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Abstract
The present invention relates to a novel plate type spiral heat exchanger, which has the characteristics of a plate heat exchanger, a spiral plate heat exchanger, and a spiral shell tube heat exchanger, and is characterized in that the size is small, the heat exchanging efficiency is high, the countercurrent heat exchange can be operated, the requirement of heat exchange in low temperature difference is met, a modular structure filter is provided, and a novel heat exchanger is easy to disassemble and clean, the present invention is easy for modularization process and assembly production, and the production cost is low. The present invention is particularly suitable for recycling of the after heat of bathing waste water and pre heating clean tap water in the process of household bathing, and more than 60 percent of waste heat can be effectively recycled, and the water heater power can be doubled in the condition of using lower cost and no energy consumption is added.
Description
Technical field
The present invention relates to a kind of novel slab type spiral heat exchanger, with plate type heat exchanger, spiral heat exchanger and helical disk tubular type heat exchanger characteristics, particularly be the small-sized field of heat exchangers that only needs less heat exchange area.
Background technology
Along with the improvement of people's living conditions, increasing family has toilet and the bathroom of oneself, and more people have a bath in the own home, and wherein shower accounts for higher proportion.Can gas heater, electric heater, solar water heater etc. be arranged water heater for household use at present.Domestic gas-fired water heater mostly is the directly-heated type fast water heater, and solar water heater mostly is the heat storage type water heater, and the present main flow of electric heater is a heat storage type, forward direct-heating type electric heater transition.
When people carried out bathing in the shower mode, flow through from top to bottom human body or directly on the Crater plate of bath hot water (being approximately 40 ~ 43 ℃) became bath wastewater (being approximately 30 ~ 35 ℃) immediately and flows directly into sewer.In China, average temperature of the whole year is 16.6 ℃, and the year-round average temperature of northern area can be lower, directly about 30 ℃ bath wastewater is discharged into sewer, and what flow away is not only water thereupon, has also contained appreciable heat energy simultaneously.
With direct-heating type electric heater is example, direct-heating type electric heater's power of selling on the market mostly is 6KW ~ 8KW greatly at present, if in the winter of cold, environment temperature/when directly-heating type water heater entry (running water) water temperature is 0 ℃, obtain the required per minute 4 up-flow amounts of suitable human body bathing, 42 ℃ hot water, need 11.72KW; If per minute 6 up-flow amounts then need 17.58KW; Initial water temperature is 5 ℃, and corresponding power also needs to reach 10.32KW and 16.18KW.Obviously, direct-heating type electric heater's power of being sold on the market at present is commonly 6KW ~ 8KW, is difficult to satisfy people's bathing in winter needs.Does not why direct-heating type electric heater's manufactory produce the electric heater of 12 ~ 18KW? this is because the power circuit of the residential building of China and power supply environment determine (restriction).
If can recycle the partial heat energy that bath wastewater was contained with simple and high-efficiency method, the running water lower to initial temperature carries out preheating, for example, if effectively reclaim the heat energy in 60% bath wastewater, promptly use the directly-heating type water heater of less rated power (as 6kw) also can allow people obtain more comfortable bathing impression in the winter of cold.This will help energy-saving and environmental protection and save money, and also can reduce material and cost that water heater is produced simultaneously.
The existing heat exchanger that relates to the bathroom use, genus is indiscriminately imitated existing general industry heat exchanger structure and is entered the bathroom mostly, and wherein, that is come by the distortion of spiral coil heat exchanger is the most common.The patent No. that more representative is is the distortion that 03263228.2 the waste-heat recovery device of charged heating " can " belongs to the spiral coil heat exchanger; The patent No. is that 99203188.5 " pad-board type spent hot water waste-heat recoverer " then used coil pipe to add the double pipe heat exchanger principle.These select for use the heat exchange efficiency of helical disk tubular type design heat exchanger lower, are difficult to satisfy the lower bathing environment of winter environment temperature.The patent No. is that the design of 01249608.1 " Thin plate heat exchanger " is then too complicated, has used too much material, and but not having correspondingly to increase the effective heat exchange area, and heat exchanger processing difficulty that should design is big, cost is high.
The invention provides a kind of characteristics that had plate type heat exchanger, spiral heat exchanger, helical disk tubular type heat exchanger concurrently, volume is little, heat exchange efficiency is high, countercurrent flow can be carried out, the needs that hang down temperature difference heat exchange can be satisfied, the new type heat exchanger of band modular construction filter, easy disassembly, cleaning, and have the modularization of being easy to processing and Assembling Production, the characteristics of low cost of manufacture.
Summary of the invention
The present invention is achieved through the following technical solutions:
A kind of novel slab type spiral heat exchanger is characterized in that, the core component of heat exchanger is that a sheet metal by high heat conductance is made by impact style, forms concavo-convex from the inside to surface alternate spiral groove on the sheet metal two sides; By sheet metal two sides at this band spiral groove, cover metal or plastic plate respectively, form two spirality fluid passages two-layer up and down, mutual isolation on the sheet metal two sides of this band spiral groove, allow the lower liquid of initial temperature flow into, to flow out to middle from upper strata spirality fluid channel edge, and the higher liquid of initial temperature flows to, flows out to the edge from the centre of lower floor's spirality fluid passage, thereby realizes low temperature difference heat exchange in the mode of adverse current.
The appearance profile of the sheet metal of band spiral groove is circular or oval, also can be square, the rectangle of band circular arc lead angle, can also be the shape of similar stadium ◎ shape runway.
The cross section of the groove on the sheet metal of band spiral groove can design and produce (similar sinusoidal waveform or corrugation type) in the arc-shaped, also can be zigzag (shape that similar a plurality of VVVVV connect).
Another characteristics of heat exchanger of the present invention, the whole middle slightly depression of the sheet metal of band spiral groove, periphery is slightly high, in obtuse angle frustum pan shape; The a part of spatial area of middle reservation is placed a modular filtration device in the heat exchanger centre position, form with the dirt that lowers heat exchanger.
The present invention has compared following advantage with existing design:
The spirality fluid passage of two upper cold and lower heat layerings, the convection current and the turbulent flow (forced convertion) of water effectively improve heat exchange efficiency in the enhancing heat transfer process; Spirality fluid passage has also effectively lowered the resistance of liquid flow; The reversible flow heat exchange can be satisfied the applied environment that hangs down temperature difference heat exchange.
Heat-transfer surface is that a block of metal thin plate is made, and when strengthening heat-transfer effect, also plays balanced effect of conducting heat; For example, at the bathing environment of family's shower, can effectively suppress because the clean water coolant-temperature gage that factors such as the current temperature of bath wastewater intermittently changes, flow velocity cause being preheated obviously fluctuates, sometimes cold and sometimes hot situation takes place.
Heat-transfer surface integral body is the design of the bottom of a pan shape, when having guaranteed that people are interrupted hot water use (having closed current when playing perfumed soap or hair washing) once in a while in the bathing process, still continues to have kept to cleaning the preheating of running water, the fluctuation of lowering water temperature when opening hot water again.
Modular filtration device independently, the dirt that can lower heat exchanger forms, the also technology upgrading of convenient filter simultaneously.
Can make the screw type water channel of two 15 ~ 20m long (even reaching more than the 30m) with impact style in one square metre area, contrast use 15 ~ 20m long metal pipe (pipe or square groove pipe etc.) making spiral coil cost is the end more, easier processing.
Description of drawings
Fig. 1: the cutaway view that is heat exchanger of the present invention;
Fig. 2: be core component of the present invention, the 3-D view of the metallic plate 1 of spiral groove.
The specific embodiment
Below in conjunction with Figure of description heat exchanger of the present invention is described in further detail.
As shown in Figure 1, designed heat exchanger in the present embodiment, its core component is that a sheet metal by high heat conductance is made by impact style, forms the sheet metal 1 of concavo-convex from the inside to surface alternate spiral groove on the sheet metal two sides; By covered metal plate 4 on the sheet metal 1 of this band spiral groove, below plastic covering plate 5 and insulation material (not drawing among the figure), form upper strata spirality fluid passage 2 and lower floor's spirality fluid passage 3 of mutual isolation on the two sides of the sheet metal 1 of this band spiral groove; Allow the lower cleaning running water of initial temperature flow out from edge cold water water inlet 6 inflows of upper strata spirality fluid passage 2, clean water delivery port 7 extremely middle after preheating, and the higher bath wastewater of initial temperature flows to, flows out to edge bath wastewater delivery port 8 from the middle bath wastewater water inlet 9 of lower floor's spirality fluid passage 3, mode with adverse current realizes low temperature difference heat exchange, realizes utilizing the purpose of bath wastewater preheating low temperature running water.
The appearance profile of the sheet metal 1 of band spiral groove is circular or oval, also can be square, the rectangle of band circular arc lead angle, can also be the shape of similar stadium ◎ shape runway.
Groove on the sheet metal 1 of band spiral groove the cross section can design and produce (similar sinusoidal waveform or corrugation type) in the arc-shaped, also can be zigzag (shapes that similar a plurality of VVVVV connect).
The whole middle slightly depression of the sheet metal 1 of the band spiral groove of designed heat exchanger in the present embodiment, periphery is slightly high, in obtuse angle frustum pan shape; Middle reserve a part of spatial area, place the filter 10 of hair in the modular filtration bath wastewater, greasy, scurf etc. in the heat exchanger centre position, form with the dirt that lowers heat exchanger.Filter center also is provided with a discharge opening 11 in addition, is used for promptly from this sluicing, avoiding waste water to overflow when filter blocks, bath wastewater sluices when smooth from the heat exchanger helical water channel; After the bathing, can be by unloading remaining bath wastewater in this discharge opening discharging water heater.
Heat exchanger also comprises shell 13, reinforcement and filler 12 etc.
In having realized each purpose process of the present invention, the preferred embodiments of the present invention have been described also.Should be noted that this embodiment is just done explanation and description by explanation principle of the present invention.Many improvement and adaptability revision all are conspicuous for one of ordinary skill in the art under the condition that does not depart from the present invention's essence and scope.Therefore, the present invention is only limited by following claims.
Claims (2)
1, a kind of novel slab type spiral heat exchanger is characterized in that, the core component of heat exchanger is made by impact style by the sheet metal of a high heat conductance, forms concavo-convex from the inside to surface alternate spiral groove on the sheet metal two sides; By this band spiral groove sheet metal above covered metal plate, below the plastic covering plate, form two spirality fluid passages two-layer up and down, mutual isolation on the sheet metal two sides of this band spiral groove, allow the lower liquid of initial temperature flow into, to flow out to middle from upper strata spirality fluid channel edge, and the higher liquid of initial temperature flows to, flows out to the edge from the centre of lower floor's spirality fluid passage, thereby realizes low temperature difference heat exchange in the mode of adverse current.
2, novel slab type spiral heat exchanger according to claim 1 is characterized in that: the whole middle slightly depression of the sheet metal of band spiral groove, and periphery is slightly high, in obtuse angle frustum pan shape; Reserve a part of spatial area in the heat exchanger centre position, place a modular filtration device, form with the dirt that lowers heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2007100779260A CN100489432C (en) | 2007-09-06 | 2007-09-06 | Novel slab type spiral heat exchanger |
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CNB2007100779260A CN100489432C (en) | 2007-09-06 | 2007-09-06 | Novel slab type spiral heat exchanger |
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CN101118133A CN101118133A (en) | 2008-02-06 |
CN100489432C true CN100489432C (en) | 2009-05-20 |
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CNB2007100779260A Expired - Fee Related CN100489432C (en) | 2007-09-06 | 2007-09-06 | Novel slab type spiral heat exchanger |
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Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101776313A (en) * | 2009-12-29 | 2010-07-14 | 大连葆光节能空调设备厂 | Untreated sewage source heat pump system |
CN101761991A (en) * | 2009-12-29 | 2010-06-30 | 大连葆光节能空调设备厂 | Sewage source heat pump system |
CN103180022B (en) * | 2010-07-21 | 2016-02-17 | 阿奎巴克技术公司 | Have for the applicator of thin film evaporation and the distiller for removing sedimental scaler |
CN103512401B (en) * | 2013-10-20 | 2015-03-25 | 丹阳市正大油脂有限公司 | Spiral-plate heat exchanger with protection function |
EP2952845B1 (en) * | 2014-06-05 | 2016-12-28 | Alfa Laval Corporate AB | Flushing assembly |
CN104180687A (en) * | 2014-09-04 | 2014-12-03 | 周洪德 | Shower waste heat recovery device |
CN106076094B (en) * | 2016-07-20 | 2019-03-05 | 山东神华山大能源环境有限公司 | A kind of heat exchange liquid collector, desulphurization system and the method for the wet desulphurization of single column Two-way Cycle |
CN108061471B (en) * | 2017-12-14 | 2019-09-10 | 中国科学院过程工程研究所 | A kind of multiple-unit composite screw plate heat exchanger |
CN108444317A (en) * | 2018-03-23 | 2018-08-24 | 佛山市恒芯磁能科技有限公司 | A kind of waste-water heat-energy recovery device walks pipe structure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4291423A (en) * | 1980-03-31 | 1981-09-29 | Wilson Mahlon T | Heat reclamation for shower baths, sinks, and other fluid receiving vessels |
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2007
- 2007-09-06 CN CNB2007100779260A patent/CN100489432C/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4291423A (en) * | 1980-03-31 | 1981-09-29 | Wilson Mahlon T | Heat reclamation for shower baths, sinks, and other fluid receiving vessels |
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Granted publication date: 20090520 Termination date: 20190906 |