CN101776410B - High temperature resistant heat storage element box made of ceramic material - Google Patents
High temperature resistant heat storage element box made of ceramic material Download PDFInfo
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- CN101776410B CN101776410B CN2009101974630A CN200910197463A CN101776410B CN 101776410 B CN101776410 B CN 101776410B CN 2009101974630 A CN2009101974630 A CN 2009101974630A CN 200910197463 A CN200910197463 A CN 200910197463A CN 101776410 B CN101776410 B CN 101776410B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a high temperature resistant heat storage element box made of ceramic material, which is characterized in that the heat storage element box is formed by bonding a first ceramic heat storage plate and a second ceramic heat storage plate which are alternately arranged, wherein the first ceramic heat storage plate comprises a first ceramic heat storage plate main body with a continuous semicircular arc or triangular section; polygonal corrugation is arranged on the first ceramic heat storage plate main body; the second ceramic heat storage plate comprises a second ceramic heat storage plate main body with a continuous triangular section; and straight corrugation is arranged on the second ceramic heat storage plate main body. The heat storage element box has the advantage of high heat transfer coefficient.
Description
Technical field
The present invention relates to a kind of high temperature resistant heat storage element box made of ceramic material, be used for rotary type heat exchanger or fixed storage heater, can when 1300 ℃ of maximum temperatures, serve as the heat accumulating element of regenerative heat exchanger, belong to technical field of heat exchangers.
Background technology
No matter be regenerative (swinging) heat exchanger or the fixed storage heater of alternation, its core all is the heat accumulating element of heat absorption and heat release.The normal air preheater adopts the steel thin plate as heat accumulating element; Through rolling at surface of steel plate or suppress various decorative pattern passages and strengthen heat convection; But the metal upper limit allowable of carbon steel material is less than 450 ℃, even adopt expensive austenite steel, maximum permissible temperature also is no more than 800 ℃; Along with the rising of metal temperature, the possibility that thickness has only the sheet metal of 0.4-1.5mm burning to occur also strengthens.
Most of fixedly storage heater adopts Ceramic Balls, ceramic honey comb or potsherd to make heat accumulating element; Its maximum operation (service) temperature depends on ceramic material; Kaolin pottery to use the most general in the industry; Maximum permissible temperature can reach 1300 ℃, satisfies the heat recovery needs of general technology kiln fully.But the circulating resistance of ceramic bead is big, specific area is little, frangible drawbacks limit that the intensity of ceramic honey comb is on the low side their use.The most promising at present ceramic heat-storing element is the potsherd class, on metallurgical equipments such as steel mill, has obtained using widely.Present potsherd adopts mode enhanced heat exchanges such as small hydro diameter, surface rib more, and the fin layout generally is parallel to airflow direction, in use; Less than normal because of passage, be prone to obstruction, fin is parallel to airflow direction; Also cause flow boundary layer air thickness big, heat transfer coefficient improves influenced.Some potsherd is processed into the waveform of overall height or overall with, and airflow direction does not change behind guiding in channel, still can form the webbing interlayer, causes the coefficient of heat transfer on the low side.
The long-term use and the performance test of heat exchange corrugated plating show; To gas medium; Hydraulic diameter has at the 50-70 ° of angle of declination corrugated plating passage of 5-12mm that resistance is not too high, heat exchange property is more excellent, ash discharge combination property smoothly; Passage length considers to destroy the boundary layer to be needed, and should be no more than 100mm in length and change once with regard to turning or channel cross-section, can obtain the corrugated channel of good combination property like this.
Kaolin can be processed into the flaky material of thinner thickness, and is very soft when before burning till, being in hygrometric state, processes the surface state with wave-like easily, sends into then and fire setting in the kiln, and this forming technique is very ripe.Utilize this characteristics, can potsherd be processed into the configuration of surface of any needs.
Summary of the invention
The purpose of this invention is to provide a kind of high temperature resistant heat storage element box made of ceramic material, it can wash away heat exchange surface through air-flow inertia and destroy the boundary layer, reduces resistance coefficient, improves the coefficient of heat transfer.
In order to achieve the above object, technical scheme of the present invention provides a kind of high temperature resistant heat storage element box made of ceramic material, it is characterized in that, being bondd each other through binding agent by the first ceramic heat-storing sheet that is arranged alternately and the second ceramic heat-storing sheet forms;
Wherein, the described first ceramic heat-storing sheet comprises the first ceramic heat-storing sheet body with continuous semicircular arc or leg-of-mutton section, and the first ceramic heat-storing sheet body is provided with broken line shape ripple;
The described second ceramic heat-storing sheet comprises the second ceramic heat-storing sheet body with continuous leg-of-mutton section, and the second ceramic heat-storing sheet body is provided with the linear ripple;
The section depth of the described first ceramic heat-storing sheet body is 5～12mm, and the section depth of the second ceramic heat-storing sheet is 2～5mm.
Further, the height and the width of the said first ceramic heat-storing sheet body are all 150～250mm, and thickness is 0.8-1.5mm.
The height and the width of the said second ceramic heat-storing sheet are all 150～250mm, and thickness is 0.8-1.5mm.
Said broken line shape ripple is made up of end to end rectilinear bellows segment, and the length of each bellows segment is 50～100mm, and the angle (ripple angle of declination) of ripple trend and gas inflow and outflow end face is 50～70 °.
The ripple angle of declination of said linear ripple is 50～70 °.
The hydraulic diameter scope of the said first ceramic heat-storing sheet is 8.3-12.7mm.
The hydraulic diameter scope of the said second ceramic heat-storing sheet is 3.9-8.3mm.
The said first ceramic heat-storing sheet and the second ceramic heat-storing sheet all adopt the compacting of aluminum template to form.
The optional high alumina high temperature of described binding agent opal glaze, or other fusing point is at the glaze more than 1300 ℃.
The invention has the advantages that:
(1) can effectively improve the circulation microstate, can not form thicker boundary layer, reach heat-transfer effect preferably.Test shows that turning channel can more not transferred the raising of passage convection transfer rate more than 15%.
(2) circulating resistance adds that because of the circulation hydraulic diameter amplifies tilt angled down is bigger, and soot particle jam phenomenon alleviates, and circulating resistance is suitable with straight wavy channel.
(3) after potsherd was bonded to integral body, ceramics thickness is thicker than ceramic honey comb, and was not easily broken, can satisfy the slight vibration and the air-flow alternate scour condition of work of swinging heat exchange.
(4) width of potsherd can vary, and so just can stack out monnolithic case is trapezoidal shape, meets the epitrochanterian trapezoidal lattice storehouse requirement of rotary type heat exchanger especially.
(5) logical ash is effective, and the ripple inclination angle can guarantee that soot particle falls automatically, does not pile up the dead angle.The air-flow direction of passage all can with sweeping away up from top to bottom.
Description of drawings
Fig. 1 is the high temperature resistant heat storage element box made of ceramic material structural representation;
Fig. 2 is the first ceramic heat-storing chip architecture sketch map;
Fig. 3 is the second ceramic heat-storing chip architecture sketch map.
The specific embodiment
Specify the present invention below in conjunction with embodiment.Section depth refers to the distance of the crest of corrugating to trough among the embodiment, and the ripple angle of declination refers to wavy channel and horizontal angle.
As shown in Figure 1, be the high temperature resistant heat storage element box made of ceramic material structural representation, described high temperature resistant heat storage element box made of ceramic material is formed by first ceramic heat-storing sheet 6 that is arranged alternately and the second ceramic heat-storing sheet, 7 mutual bondings; The said first ceramic heat-storing sheet 6 and the second ceramic heat-storing sheet 7 all adopt the compacting of aluminum template to form, and can obtain bright and clean surface, and china clay and template also are difficult for adhesion, and edges and corners are also very smooth.The raw material of ceramic heat-storing sheet can adopt salic content at 20% left and right sides kaolin raw material, and the maximum operation (service) temperature of processing potsherd can reach 1300 ℃.The ceramic heat-storing sheet can select for use high alumina high temperature opal glaze or other fusing point to make binding agent at the glaze more than 1300 ℃.Abnormity subassembly wrapper (as trapezoidal) can carry out excision forming to the potsherd blank before firing.
As shown in Figure 2, be the first ceramic heat-storing chip architecture sketch map, the described first ceramic heat-storing sheet 6 comprises that the first ceramic heat-storing sheet body, 2, the first ceramic heat-storing sheet bodies 2 with continuous semicircular arc or leg-of-mutton section are provided with broken line shape ripple 1; The height of the said first ceramic heat-storing sheet body 2 is 150mm, and width is 150mm, and thickness is 0.8mm, and section depth is 5mm.The different depth configuration is used for adapting to the heat release flue gas that difference contains the grey particle granular size.Said broken line shape ripple 1 is made up of end to end rectilinear bellows segment, and the length of each bellows segment is 50mm, and the ripple angle of declination is 50 °, and the hydraulic diameter of the said first ceramic heat-storing sheet is 8.3mm.
As shown in Figure 3, be the second ceramic heat-storing chip architecture sketch map, the described second ceramic heat-storing sheet 7 comprises that the second ceramic heat-storing sheet body, 5, the second ceramic heat-storing sheet bodies 5 with continuous leg-of-mutton section are provided with linear ripple 4.The height of the said second ceramic heat-storing sheet 7 is 150mm, and width is 150mm, and thickness is 0.8mm, and section depth is 2mm.The ripple angle of declination of said linear ripple 4 is 50 °, and the hydraulic diameter of the said second ceramic heat-storing sheet is 3.9mm.
Be similar to embodiment 1, difference is that the height and the width of the said first ceramic heat-storing sheet body 2 are all 250mm, and thickness is 1.5mm, and section depth is 12mm.Said broken line shape ripple 1 is made up of end to end rectilinear bellows segment, and the length of each bellows segment is 100mm, and the ripple angle of declination is 70 °.The hydraulic diameter of the said first ceramic heat-storing sheet is 12.7mm.The height and the width of the said second ceramic heat-storing sheet 7 are all 250mm, and thickness is 1.5mm, and section depth is 5mm.The ripple angle of declination of said linear ripple 4 is 70 °.The hydraulic diameter of the said second ceramic heat-storing sheet is 8.3mm.
Embodiment 3
Be similar to embodiment 1, difference is that the height of the said first ceramic heat-storing sheet body 2 is 250mm, and width is 250mm, and thickness is 1.2mm, and section depth is 7.8mm.Said broken line shape ripple 1 is made up of end to end rectilinear bellows segment, and the length of each bellows segment is 80mm, and the ripple angle of declination is 60 °.The hydraulic diameter of the said first ceramic heat-storing sheet is 10.8mm.The height of the said second ceramic heat-storing sheet 7 is 250mm, and width is 250mm, and thickness is 1.2mm, and section depth is 3mm.The ripple angle of declination of said linear ripple 4 is 60 °.The hydraulic diameter of the said second ceramic heat-storing sheet is 5.6mm.
Ceramic material accumulation of heat corrugated sheet is except that outstanding high temperature resistance, and the acid corrosion-resistant ability is also more superior.Therefore also can in cold section of the air preheater that the sulfuric acid corrosion occasion is arranged and flue gas-flue gas heat exchange device, use.The corrugating form also can be used on metallic plate, is used for improving conducting heat.
Claims (4)
1. a high temperature resistant heat storage element box made of ceramic material is characterized in that, being bondd each other through binding agent by the first ceramic heat-storing sheet (6) that is arranged alternately and the second ceramic heat-storing sheet (7) forms;
Wherein, the described first ceramic heat-storing sheet (6) comprises the first ceramic heat-storing sheet body (2) with continuous semicircular arc or leg-of-mutton section, and the first ceramic heat-storing sheet body (2) is provided with broken line shape ripple (1);
The described second ceramic heat-storing sheet (7) comprises the second ceramic heat-storing sheet body (5) with continuous triangular section, and the second ceramic heat-storing sheet body (5) is provided with linear ripple (4);
The section depth of the described first ceramic heat-storing sheet body (2) is 5～12mm, and the section depth of the second ceramic heat-storing sheet (7) is 2～5mm.
2. high temperature resistant heat storage element box made of ceramic material as claimed in claim 1 is characterized in that, the height and the width of the said first ceramic heat-storing sheet body (2) are all 150～250mm, and thickness is 0.8-1.5mm.
3. high temperature resistant heat storage element box made of ceramic material as claimed in claim 1 is characterized in that, the height and the width of the said second ceramic heat-storing sheet (7) are all 150～250mm, and thickness is 0.8-1.5mm.
4. high temperature resistant heat storage element box made of ceramic material as claimed in claim 1; It is characterized in that; Said broken line shape ripple (1) is made up of end to end rectilinear bellows segment; Become broken line to arrange, the length of each bellows segment is 50～100mm, and the angle of ripple trend and gas inflow and outflow end face is 50～70 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101974630A CN101776410B (en) | 2009-10-21 | 2009-10-21 | High temperature resistant heat storage element box made of ceramic material |
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| CN2009101974630A CN101776410B (en) | 2009-10-21 | 2009-10-21 | High temperature resistant heat storage element box made of ceramic material |
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| CN101776410A CN101776410A (en) | 2010-07-14 |
| CN101776410B true CN101776410B (en) | 2012-05-16 |
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| CN105674302A (en) * | 2016-04-15 | 2016-06-15 | 马怡鑫 | Improved heat accumulation incinerator |
Citations (10)
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|---|---|---|---|---|
| GB1000496A (en) * | 1963-01-31 | 1965-08-04 | Gen Motors Corp | Matrices for regenerative heat exchangers |
| US3367404A (en) * | 1966-12-08 | 1968-02-06 | Gen Motors Corp | Radial flow regenerator matrix formed from ceramic blocks and the method of making |
| US3759323A (en) * | 1971-11-18 | 1973-09-18 | Caterpillar Tractor Co | C-flow stacked plate heat exchanger |
| GB1439674A (en) * | 1973-11-24 | 1976-06-16 | Central Electr Generat Board | Matrix for regenerative heat exchangers |
| US4357987A (en) * | 1978-09-28 | 1982-11-09 | Ngk Insulators, Ltd. | Thermal stress-resistant, rotary regenerator type ceramic heat exchanger and method for producing same |
| CN2350714Y (en) * | 1998-12-02 | 1999-11-24 | 冶金工业部马鞍山钢铁设计研究院 | Heat storage body |
| GB0515711D0 (en) * | 2005-07-29 | 2005-09-07 | Howden Power Ltd | Heat exchange surface |
| CN201032382Y (en) * | 2007-04-26 | 2008-03-05 | 武汉钢铁(集团)公司 | Plate-type ceramic heat accumulator |
| CN201034416Y (en) * | 2007-04-26 | 2008-03-12 | 武汉钢铁(集团)公司 | Hole structural honeycomb ceramic heat storage |
| CN100578134C (en) * | 2007-04-26 | 2010-01-06 | 武汉钢铁(集团)公司 | Ceramic heat storage body |
-
2009
- 2009-10-21 CN CN2009101974630A patent/CN101776410B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1000496A (en) * | 1963-01-31 | 1965-08-04 | Gen Motors Corp | Matrices for regenerative heat exchangers |
| US3367404A (en) * | 1966-12-08 | 1968-02-06 | Gen Motors Corp | Radial flow regenerator matrix formed from ceramic blocks and the method of making |
| US3759323A (en) * | 1971-11-18 | 1973-09-18 | Caterpillar Tractor Co | C-flow stacked plate heat exchanger |
| GB1439674A (en) * | 1973-11-24 | 1976-06-16 | Central Electr Generat Board | Matrix for regenerative heat exchangers |
| US4357987A (en) * | 1978-09-28 | 1982-11-09 | Ngk Insulators, Ltd. | Thermal stress-resistant, rotary regenerator type ceramic heat exchanger and method for producing same |
| CN2350714Y (en) * | 1998-12-02 | 1999-11-24 | 冶金工业部马鞍山钢铁设计研究院 | Heat storage body |
| GB0515711D0 (en) * | 2005-07-29 | 2005-09-07 | Howden Power Ltd | Heat exchange surface |
| CN201032382Y (en) * | 2007-04-26 | 2008-03-05 | 武汉钢铁(集团)公司 | Plate-type ceramic heat accumulator |
| CN201034416Y (en) * | 2007-04-26 | 2008-03-12 | 武汉钢铁(集团)公司 | Hole structural honeycomb ceramic heat storage |
| CN100578134C (en) * | 2007-04-26 | 2010-01-06 | 武汉钢铁(集团)公司 | Ceramic heat storage body |
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| CN101776410A (en) | 2010-07-14 |
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