CN103743112A - Electric heating device for large-section air channel uniform flow field - Google Patents
Electric heating device for large-section air channel uniform flow field Download PDFInfo
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- CN103743112A CN103743112A CN201410007061.0A CN201410007061A CN103743112A CN 103743112 A CN103743112 A CN 103743112A CN 201410007061 A CN201410007061 A CN 201410007061A CN 103743112 A CN103743112 A CN 103743112A
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- high temperature
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Abstract
The invention discloses an electric heating device for a large-section air channel uniform flow field. The electric heating device comprises an air channel lined mica plate, air channel bearing metal plates, high-temperature-resistant ceramic isolation fasteners, metal triangular wave heating tapes, heating tape connecting assemblies and a connecting assembly insulating glue wood plate, wherein the metal triangular wave heating tapes are connected and positioned in a rhombus form with upper troughs opposite to lower peaks through the high-temperature-resistant ceramic isolation fasteners; on the heating tape connecting assemblies on the left and right sides, the metal triangular wave heating tapes are electrically connected in series and in parallel through connecting assembly adapting and fixing bolts according to a certain design; a control loop is constructed by an electric power regulator, a temperature controller and a temperature sensor in order to control the heating temperature of the air flow field uniformly and accurately. In the electric heating device for the large-section air channel uniform flow field, the widths of the heating metal tapes can be designed according to heating power along the air flow direction, thereby fulfilling the aim of controlling the heat exchange area and obtaining a high-quality and uniform temperature air flow field.
Description
Technical field:
The present invention relates to a kind of electric heater unit, particularly a kind of large section duct uniform flow field electric heater unit.
Background technology:
In heating field, large section duct uniform air flow flow field, at present, also do not have stream field disturbance little, quick, evenly, heater means accurately.Along with scientific and technical development, need to heat large section duct uniform air flow flow field, be convenient to study under different temperatures flow field state the various characteristics of experimental rig in large section duct uniform air flow flow field.Therefore, need a kind of heater, do not destroy shortly the air velocity distribution uniformity, can carry out evenly for large section duct air velocity distribution again, accurately heat.
Summary of the invention:
The invention provides and a kind ofly can fast, evenly, accurately heat large section duct air velocity distribution, meanwhile, the disturbance of heater stream field is less, can carry out current stabilization to air velocity distribution again.
The present invention adopts following technical scheme: a kind of large section duct uniform flow field electric heater unit, it comprises air channel liner micarex, air channel load metallic plate, high temperature resistant porcelain isolation fastener, metal triangular ripple heating tape, heating tape coupling assembling and insulating cement plank, on the load metallic plate of described air channel, offer square opening, projection on described insulating cement plank is embedded in described square opening, described metal triangular ripple heating tape inside and outside coordinates with air channel liner micarex by described air channel load metallic plate through the position of air channel load metallic plate and above insulate completely with air channel load metallic plate is electric, described metal triangular ripple heating tape is triangular wave shape, the two ends of described metal triangular ripple heating tape are respectively through described air channel liner micarex and insulating cement plank, electrical isolation is carried out by described high temperature resistant porcelain isolation fastener in described neighbouring metal triangular ripple heating tape, traction location.
Described metal triangular ripple heating tape connects location by upper trough to lower crest rhombus mode.
On the liner micarex of described air channel, be formed with liner micarex spacing hole, be formed with insulating cement plank spacing hole on described insulating cement plank, the two ends of described metal triangular ripple heating tape are respectively through described liner micarex spacing hole and insulating cement plank spacing hole.
Described high temperature resistant porcelain isolation fastener is by insulated column on high temperature resistant porcelain isolation fastener, insulated column in high temperature resistant porcelain isolation fastener, insulated column and be positioned at high temperature resistant porcelain isolation fastener stiff end and the high temperature resistant porcelain isolation fastener movable end at high temperature resistant porcelain isolation fastener two ends under high temperature resistant porcelain isolation fastener, insulated column on described high temperature resistant porcelain isolation fastener stiff end and high temperature resistant porcelain isolation fastener, in high temperature resistant porcelain isolation fastener, under insulated column and high temperature resistant porcelain isolation fastener, insulated column forms E shape structure and is fired into one as isolation fastener body, on the cylinder of described high temperature resistant porcelain isolation fastener movable end, offer three perforation through holes that coordinate with E shape structure isolation fastener body, described high temperature resistant porcelain isolation fastener movable end also offers a high temperature resistant porcelain isolation fastener lockpin hole, the bearing of trend of the bearing of trend of described perforation through hole and described high temperature resistant porcelain isolation fastener lockpin hole is perpendicular.
According to heating power, design regulates the width of described metal triangular ripple heating tape.
Described large section duct uniform flow field electric heater unit also includes the liner micarex set bolt that connects air channel liner micarex and air channel load metallic plate and the bakelite plate set bolt that is connected air channel load metallic plate and insulating cement plank.
Described large section duct uniform flow field electric heater unit also includes coupling assembling metal pedestal, for being fastenedly connected the coupling assembling metal pedestal set bolt of coupling assembling metal pedestal and insulating cement plank, coupling assembling conduction red copper piece, heating metal strip compresses metal derby and coupling assembling metal tape hold-down bolt, described metal triangular ripple heating tape exit is placed on described coupling assembling conduction red copper piece and heating metal strip compresses between metal derby, use described coupling assembling metal tape hold-down bolt that coupling assembling is conducted electricity to red copper piece, heating metal strip compresses metal derby and is connected with coupling assembling metal pedestal, spinning is fastening.
Described large section duct uniform flow field electric heater unit also includes coupling assembling protection box wall and the coupling assembling protection lid of the guard space that forms coupling assembling row.
The present invention has following beneficial effect:
(1) a kind of diamond-mesh structure provided by the invention, large section duct electric heater unit, designing the width of heating metal tape according to heating power along air current flow direction, reach the object of controlling heat exchange area;
(2) the present invention can also not increase under the prerequisite of flow resistance by design, changes rhombus circulation area, reaches the object of controlling heat exchange area, thereby can obtain high-quality, uniform temperature air velocity distribution.
Accompanying drawing explanation:
Fig. 1 is favorable current flow direction structural representation of the present invention.
Fig. 2 is heating triangular wave metallic strip structures schematic diagram.
Fig. 3 is high temperature resistant porcelain isolation fastener structures schematic diagram.
Fig. 4 diamond-mesh electrical heating air channel side view and coupling assembling row figure.
Fig. 5 diamond-mesh electrical heating air channel coupling assembling cutaway view.
Fig. 6 diamond-mesh electrical heating air-duct apparatus load-carrying construction schematic diagram.
Fig. 7 insulating cement plank schematic diagram.
Fig. 8 liner micarex schematic diagram.
Fig. 9 connecting component structure schematic diagram.
Wherein:
1. upper and lower fixing metal band; 2. air channel liner micarex; 3. air channel load metallic plate; 4. high temperature resistant porcelain is isolated fastener; 5. metal triangular ripple heating tape; 6. air channel adpting flange; 7. heating tape coupling assembling; 8. insulating cement plank; 9. coupling assembling metal pedestal; 10. coupling assembling conduction red copper piece; 11. coupling assembling metal tape hold-down bolts; 12. heating metal strips compress metal derby; 13. coupling assembling switching set bolts; 14. coupling assembling protection box walls; 15. coupling assembling protection lids; 16. coupling assembling metal pedestal set bolts; 17. bakelite plate set bolts; 18. liner micarex set bolts; 19. insulating cement plank spacing holes; 20. liner micarex spacing holes; 4_1. is high temperature resistant, and porcelain is isolated fastener stiff end; 4_2. is high temperature resistant, and porcelain is isolated insulated column on fastener; 4_3. is high temperature resistant, and porcelain is isolated insulated column in fastener; 4_4. is high temperature resistant, and porcelain is isolated insulated column under fastener; 4_5. is high temperature resistant, and porcelain is isolated fastener movable end; 4_6. is high temperature resistant, and porcelain is isolated fastener lock pin; 4_7. is high temperature resistant, and porcelain is isolated fastener lockpin hole.
The specific embodiment:
Please refer to shown in Fig. 1, it is diamond-mesh electrical heating air-duct apparatus favorable current flow direction profile, the width of metal triangular ripple heating tape 5 moves towards downstream direction, meet air-flow face and form diamond-mesh structure, its objective is and reduce as far as possible air-flow when the diamond-mesh electrical heating air-duct apparatus, the air current flow resistance of generation, reduce the disturbance to uniform flow field simultaneously.The width of metal triangular ripple heating tape 5 can adjust, can regulate metal triangular ripple heating tape 5 width according to heating power design, also can design and regulate favorable current flow direction, the rhombus circulation area that upper and lower metal triangular ripple heating tape forms, change circulation heat exchange area, control heating power.
The load-carrying construction of diamond-mesh electrical heating air-duct apparatus is that metallic sheet material is welded, and is the brace foundation that metal triangular ripple heating tape, coupling assembling are installed, and has the adpting flange that connects air channel, front and back, sees Fig. 6.For guaranteeing the electric insulation between metal triangular wave heating tape and air channel metal structure, on the air channel of air channel wall load metallic plate 3, all have rectangle perforate, for insulating cement plank 8 projections, embed, see Fig. 7, and inside and outside coordinate metal triangular ripple heating tape 5 is insulated isolated through the position of air channel load metallic plate 3 completely with air channel liner micarex 2, while guaranteeing that metal triangular ripple heating tape 5 is drawn by air channel load metallic plate 3, with the electric upper insulation completely of air channel load metallic plate 3.Air channel liner micarex 2 is connected with air channel load metallic plate 3 use liner micarex set bolts 18 as air channel inwall, insulating cement plank 8 is installed basis as heating tape coupling assembling 7 electric insulations and is connected with air channel load metallic plate 3 use bakelite plate set bolts 17, and air channel and coupling assembling cutaway view are shown in Fig. 5.
In heating air duct, metal triangular ripple heating tape 5 can be installed by horizontal mode or vertical mode, horizontal mode is installed the electrical connection of metal triangular ripple heating tape and is completed at left and right, outside, air channel two ends, and in connection, the metal tape of lower air duct inwall only provides vertical direction to draw up and down fixation; Vertical direction is installed electrical connection upper and lower two ends outside air channel of metal triangular ripple heating tape and is completed, and the metal tape that connects air channel, left and right inwall only provides horizontal direction left and right traction fixation; In this specific embodiment, with horizontal mounting means, be illustrated.At air channel air-flow, by the metal triangular ripple heating tape 5 in region, be processed to triangular wave shape, two ends through the spacing hole 20 of liner micarex 2 and the insulating cement plank spacing hole 19 of insulating cement plank 8, are shown in Fig. 7, Fig. 8 respectively.Be drawn out to that coupling assembling row is fixed, electrical interconnecting, see Fig. 4, Fig. 5.Electrical isolation, traction location are carried out by high temperature resistant porcelain isolation fastener 4 in neighbouring metal triangular ripple heating tape 5.
Please refer to shown in Fig. 3, wherein high temperature resistant porcelain isolation fastener 4 insulated column 4_4 and be positioned at high temperature resistant porcelain isolation fastener stiff end 4_1, the high temperature resistant porcelain isolation fastener movable end 4_5 at high temperature resistant porcelain isolation fastener 4 two ends under insulated column 4_3, high temperature resistant porcelain isolation fastener in insulated column 4_2, high temperature resistant porcelain isolation fastener on high temperature resistant porcelain isolation fastener.Wherein high temperature resistant porcelain isolation fastener stiff end 4_1 and three isolation porcelain cylinders form E shape structure and are fired into one, as isolation fastener body, high temperature resistant porcelain isolation fastener movable end 4_5 is made into movable porcelain circle porcelain knob, and at cylinder, open three and coordinates and connect through hole with E shape structure isolation fastener body, on high temperature resistant porcelain isolation fastener movable end 4_5 and high temperature resistant porcelain isolation fastener, in insulated column 4_2, high temperature resistant porcelain isolation fastener, under insulated column 4_3 and high temperature resistant porcelain isolation fastener, tri-of insulated column 4_4 isolate porcelain cylinders and have a high temperature resistant porcelain and isolate fastener lockpin hole 4_7.When high temperature resistant porcelain isolation fastener is installed, upper and lower opening by E shape structure isolation fastener body, through the trough of upper metal triangular ripple heating tape 5 and the crest of lower metal triangular ripple heating tape 5, form a rhombus, by insulated column 4_2 on the high temperature resistant porcelain isolation fastener of E shape structure isolation fastener body, insulated column 4_3 in high temperature resistant porcelain isolation fastener, under high temperature resistant porcelain isolation fastener, tri-isolation porcelain cylinders of insulated column 4_4 insert the perforation through hole of high temperature resistant porcelain isolation fastener movable end 4_5, with pin, insert pin-and-hole, trough and the crest of fixing a pair of adjacent metal triangular wave heating tape, location.
The liner micarex spacing hole 20 of air channel liner micarex 2 and the insulating cement plank spacing hole 19 of insulating cement plank are passed from left and right horizontal two ends in metal triangular ripple heating tape 5, being drawn out to left and right, outside, air channel two end coupling assemblings is fixed, electrical interconnecting, coupling assembling metal base 9 is fastenedly connected with insulating cement plank 8 use coupling assembling metal pedestal set bolts 16, metal triangular ripple heating tape exit is placed on coupling assembling conduction red copper piece 10 and heating metal strip compresses between metal derby 12, use coupling assembling metal tape hold-down bolt 11 to be connected with coupling assembling metal pedestal 9, spinning is fastening, coupling assembling switching set bolt 13 provides between each heating tape coupling assembling 7, series connection on electric, be connected in parallel or connect external cable.Coupling assembling protection box wall 14 and coupling assembling protection lid 15 form coupling assembling row's guard space, and the personnel of preventing touch danger, foreign object erosion damage.
Vertical direction is close to the band of fixing metal up and down 1 of upper and lower wind path wall, same high temperature resistant porcelain isolation fastener 4 and the METAL HEATING PROCESS band of using is connected and fixed by trough and crest rhombus mode, and from two ends vertically through the liner micarex spacing hole 20 of air channel liner micarex 2 and the insulating cement plank spacing hole 19 of insulating cement plank 8, guide to the upper and lower coupling assembling in outside, air channel and fixed.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (8)
1. a large section duct uniform flow field electric heater unit, it is characterized in that: comprise air channel liner micarex (2), air channel load metallic plate (3), high temperature resistant porcelain isolation fastener (4), metal triangular ripple heating tape (5), heating tape coupling assembling (7) and insulating cement plank (8), on described air channel load metallic plate (3), offer square opening, projection on described insulating cement plank (8) is embedded in described square opening, described metal triangular ripple heating tape (5) inside and outside coordinates with air channel liner micarex (2) by described air channel load metallic plate (3) through the position of air channel load metallic plate (3) and above insulate completely with air channel load metallic plate (3) is electric, described metal triangular ripple heating tape (5) is triangular wave shape, the two ends of described metal triangular ripple heating tape (5) are respectively through described air channel liner micarex (2) and insulating cement plank (8), electrical isolation is carried out by described high temperature resistant porcelain isolation fastener (4) in described neighbouring metal triangular ripple heating tape (5), traction location.
2. large section duct uniform flow field electric heater unit as claimed in claim 1, is characterized in that: described metal triangular ripple heating tape (5) connects location by upper trough to lower crest rhombus mode.
3. large section duct uniform flow field electric heater unit as claimed in claim 1, it is characterized in that: on described air channel liner micarex (2), be formed with liner micarex spacing hole (20), on described insulating cement plank (8), be formed with insulating cement plank spacing hole (19), the two ends of described metal triangular ripple heating tape (5) are respectively through described liner micarex spacing hole (20) and insulating cement plank spacing hole (19).
4. large section duct uniform flow field electric heater unit as claimed in claim 1, it is characterized in that: described high temperature resistant porcelain isolation fastener (4) comprises insulated column (4_2) on high temperature resistant porcelain isolation fastener, insulated column (4_3) in high temperature resistant porcelain isolation fastener, under high temperature resistant porcelain isolation fastener, insulated column (4_4) and the high temperature resistant porcelain isolation fastener stiff end (4_1) and the high temperature resistant porcelain that are positioned at high temperature resistant porcelain isolation fastener (4) two ends are isolated fastener movable end (4_5), described high temperature resistant porcelain isolation fastener stiff end (4_1) is isolated insulated column (4_2) on fastener with high temperature resistant porcelain, in high temperature resistant porcelain isolation fastener, under insulated column (4_3) and high temperature resistant porcelain isolation fastener, insulated column (4_4) forms E shape structure and is fired into one as isolation fastener body, on the cylinder of described high temperature resistant porcelain isolation fastener movable end (4_5), offer three perforation through holes that coordinate with E shape structure isolation fastener body, described high temperature resistant porcelain isolation fastener movable end (4_5) also offers a high temperature resistant porcelain isolation fastener lockpin hole (4_7), the bearing of trend of the bearing of trend of described perforation through hole and described high temperature resistant porcelain isolation fastener lockpin hole (4_7) is perpendicular.
5. large section duct uniform flow field electric heater unit as claimed in claim 1, is characterized in that: according to heating power, design regulates the width of described metal triangular ripple heating tape (5).
6. large section duct uniform flow field electric heater unit as claimed in claim 1, is characterized in that: described large section duct uniform flow field electric heater unit also includes and connects the liner micarex set bolt (18) of air channel liner micarex (2) and air channel load metallic plate (3) and be connected air channel load metallic plate (3) and the bakelite plate set bolt (17) of insulating cement plank (8).
7. large section duct uniform flow field electric heater unit as claimed in claim 6, it is characterized in that: described large section duct uniform flow field electric heater unit also includes coupling assembling metal pedestal (9), be used for being fastenedly connected the coupling assembling metal pedestal set bolt (16) of coupling assembling metal pedestal (9) and insulating cement plank (8), coupling assembling conduction red copper piece (10), heating metal strip compresses metal derby (12) and coupling assembling metal tape hold-down bolt (11), described metal triangular ripple heating tape (5) exit is placed on described coupling assembling conduction red copper piece (10) and heating metal strip compresses between metal derby (12), use described coupling assembling metal tape hold-down bolt (11) that coupling assembling is conducted electricity to red copper piece (10), heating metal strip compresses metal derby (12) and is connected with coupling assembling metal pedestal (9), spinning is fastening.
8. large section duct uniform flow field electric heater unit as claimed in claim 7, is characterized in that: described large section duct uniform flow field electric heater unit also includes coupling assembling protection box wall (14) and the coupling assembling protection lid (15) of the guard space that forms coupling assembling row.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410007061.0A CN103743112B (en) | 2014-01-07 | 2014-01-07 | Large section duct uniform flow field electric heater unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410007061.0A CN103743112B (en) | 2014-01-07 | 2014-01-07 | Large section duct uniform flow field electric heater unit |
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| CN103743112A true CN103743112A (en) | 2014-04-23 |
| CN103743112B CN103743112B (en) | 2016-05-18 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359619Y (en) * | 1998-10-16 | 2000-01-19 | 沈财源 | Electric heating warm-air machine |
| DE10229547A1 (en) * | 2002-07-01 | 2004-01-15 | Att Automotive Thermo Tech Gmbh | Device for direct electric air heating has resistance consisting of two or more layers of zigzag strips of folded heating ribs separated by intermediate layers of electrically insulating material |
| DE202006017352U1 (en) * | 2006-11-14 | 2007-01-11 | Gao, Tianyu | Electrical connecting structure for air warming device, has one electrical contact arranged in another contact on side surface in proximity to upper part of PTC-heating module, and third contact arranged at upper part of module |
| CN101769595A (en) * | 2008-12-30 | 2010-07-07 | 乐金电子(天津)电器有限公司 | Electrically-assisted heating device of air conditioner |
| CN102840666A (en) * | 2011-08-20 | 2012-12-26 | 南通突优科技创业有限公司 | Pipeline hot air generator |
| CN102933917A (en) * | 2010-04-02 | 2013-02-13 | I.R.C.A.（共同）股份公司工业铠装及类似电阻 | Electric air heater, in particular for electrical domestic appliances |
| CN202907238U (en) * | 2012-11-16 | 2013-04-24 | 陕西子竹电子有限公司 | Tunnel kiln air duct heater |
| CN103292474A (en) * | 2013-05-13 | 2013-09-11 | 镇江市东方节能设备有限公司 | Air channel heating device |
| WO2013157971A1 (en) * | 2012-04-20 | 2013-10-24 | Formaster S.A. | Resistant heating element |
| JP2013217529A (en) * | 2012-04-05 | 2013-10-24 | Masakatsu Kobayashi | Hot air generator |
-
2014
- 2014-01-07 CN CN201410007061.0A patent/CN103743112B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359619Y (en) * | 1998-10-16 | 2000-01-19 | 沈财源 | Electric heating warm-air machine |
| DE10229547A1 (en) * | 2002-07-01 | 2004-01-15 | Att Automotive Thermo Tech Gmbh | Device for direct electric air heating has resistance consisting of two or more layers of zigzag strips of folded heating ribs separated by intermediate layers of electrically insulating material |
| DE202006017352U1 (en) * | 2006-11-14 | 2007-01-11 | Gao, Tianyu | Electrical connecting structure for air warming device, has one electrical contact arranged in another contact on side surface in proximity to upper part of PTC-heating module, and third contact arranged at upper part of module |
| CN101769595A (en) * | 2008-12-30 | 2010-07-07 | 乐金电子(天津)电器有限公司 | Electrically-assisted heating device of air conditioner |
| CN102933917A (en) * | 2010-04-02 | 2013-02-13 | I.R.C.A.（共同）股份公司工业铠装及类似电阻 | Electric air heater, in particular for electrical domestic appliances |
| CN102840666A (en) * | 2011-08-20 | 2012-12-26 | 南通突优科技创业有限公司 | Pipeline hot air generator |
| JP2013217529A (en) * | 2012-04-05 | 2013-10-24 | Masakatsu Kobayashi | Hot air generator |
| WO2013157971A1 (en) * | 2012-04-20 | 2013-10-24 | Formaster S.A. | Resistant heating element |
| CN202907238U (en) * | 2012-11-16 | 2013-04-24 | 陕西子竹电子有限公司 | Tunnel kiln air duct heater |
| CN103292474A (en) * | 2013-05-13 | 2013-09-11 | 镇江市东方节能设备有限公司 | Air channel heating device |
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| CN103743112B (en) | 2016-05-18 |
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