CN102235826B - Cone-shaped reverse diversion furnace gas circulation device - Google Patents
Cone-shaped reverse diversion furnace gas circulation device Download PDFInfo
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- CN102235826B CN102235826B CN 201110114403 CN201110114403A CN102235826B CN 102235826 B CN102235826 B CN 102235826B CN 201110114403 CN201110114403 CN 201110114403 CN 201110114403 A CN201110114403 A CN 201110114403A CN 102235826 B CN102235826 B CN 102235826B
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Abstract
The invention discloses a technology of a furnace gas circulation device structure for a horizontal heat treating furnace, belonging to the field of heat treatment equipment. In the cone-shaped reverse diversion furnace gas circulation device, a novel furnace gas circulation structure combining cone-type diversion and reverse diversion is adopted, therefore, air flue resistance is reduced, hot wind circulation efficiency is improved, the distance in the airflow path is reduced by half, airflow passing speed is improved by more than one time, and the furnace temperature evenness degree of an effective working area in the furnace is improved to the temperature less than or equal to +/-3DEG C from +/-5DEG C so that the use ratio of the horizontal heat treatment furnace is obviously improved. Meanwhile, a cone-shaped diversion plate and front and back reverse diversion plates are artfully combined, and a welding or pin connecting mode is adopted on different positions to avoid air flue impact damage and thermal expansion influence at high temperature so as to effectively improve the safety and the reliability of using equipment.
Description
Technical field
Patent of the present invention belongs to Equipment for Heating Processing, specifically refers to the horizontal furnace atmosphere circulation apparatus structure technology that the retort Equipment for Heating Processing is arranged.
Background technology
In prior art, between the retort of horizontal Equipment for Heating Processing and ventilating duct, gap ratio is larger, and air-flow speed by this passage the time is slowed down, and causes the heat convection ability to reduce, extending heating time; Horizontal heater adopts centrifugation blade, and the air-flow of generation rotate, swirling eddy between by retort and ventilating duct passage and workpiece effectively stroke and the time in the district can lengthen, cause the rate of ventilation minimizing that in the unit interval, workpiece is effectively distinguished; The workpiece material frame of horizontal heater is generally cuboid, adopt the airflow circulating system of circular ventilating duct, can cause and form four larger sectors between workpiece and circular ventilating duct, air-flow is avoided workpiece and can be selected the less passage of resistance to enter the fan blade air inlet like this, cause and enter the effectively interior atmosphere minimizing in district of workpiece, cause furnace temperature and atmosphere in effective district inhomogeneous, thereby have a strong impact on heat treated article to the requirement of quality.
Summary of the invention
The objective of the invention is to overcome the described shortcoming of background technology, invent a kind of furnace atmosphere circulation device of reverse flow-guiding structure mode, shorten the distance of furnace atmosphere circulation, improve air velocity, thereby improve furnace temperature in effective working region and the uniformity of atmosphere.
The present invention is by designing the furnace atmosphere circulation device of a kind of bevel-type water conservancy diversion and reverse water conservancy diversion combination, shorten gas channel distance, improve air-flow velocity of liquid assets, increase the rate of ventilation of effective workspace, improve significantly the heat convection ability, impel the circulation of furnace temperature and furnace gas more even.
The present invention is applicable to the horizontal Equipment for Heating Processing that retort is arranged, as forvacuum stove, controllable atmosphere box-type nitriding furnace, carburizer.
The invention has the beneficial effects as follows, 1, by the bevel-type deflector is set, reduced the resistance in air channel, improved hot air circulation efficient; 2, pass through the combination of the reverse deflector of bevel-type deflector and front and back, make gas channel Distance Shortened half, the speed that air-flow passes through is more than doubled, in stove effectively the furnace temperature uniformity of workspace by ± 5 ℃ bring up to≤± 3 ℃ in, the serviceability of horizontal heat-treatment furnace is significantly improved.
Description of drawings:
Fig. 1, horizontal heat-treatment furnace airflow circulating structural representation
Fig. 2, rear end conical plate water conservancy diversion schematic diagram
Fig. 3, the reverse water conservancy diversion schematic diagram in rear end
The specific embodiment:
As Fig. 1～shown in Figure 3, the present embodiment comprises: 1, fire door, 2, housing, 3, workpiece, 4, circulating fan, 5, the reverse deflector in rear end, 6, retort, 7, ventilating duct, 8, heating element heater, 9, the reverse deflector 10 of front end, front end conical baffle, 11, blast fence, 12, induced draft plate, 13, bearing pin, 14, the rear end conical baffle.its connected mode is: ventilating duct (7) is arranged in retort (6), one end of rear end conical baffle (14) is welded on the inboard of guide shell (7) end, induced draft plate (12) is connected into one with rear end conical baffle (14) by bearing pin (13), the reverse deflector in rear end (5) is welded on induced draft plate (12), the hand of spiral after the reverse deflector in rear end (5) is installed is opposite with the direction of rotation of circulating fan (4), circulating fan (4) is arranged on the assembling seat of retort (6), the reverse deflector of front end (9) is arranged on the outside of the front end of ventilating duct (7), the hand of spiral after the reverse deflector of front end (9) is installed is opposite with the direction of rotation of circulating fan (4), fire door (1) is positioned over the front end of retort, front end conical baffle (10) is arranged between ventilating duct (7) and fire door (1), blast fence (11) is arranged on the inboard of ventilating duct (7) front end.After circulating fan was opened, air-flow ceaselessly circulated along illustrated gas channel, and the heat that heating element heater (8) is produced and process gas pass the workpiece (3) in effective district rapidly and uniformly, made that in stove, workpiece obtains uniform thermal effectiveness.Simultaneously, due to the ingenious combination by the reverse deflector of bevel-type deflector and front and back, adopt welding or bearing pin connected mode at different positions, avoided the impact failure in air channel and the thermal expansion influence under high temperature, effectively improved the safety and reliability that equipment uses.
Claims (3)
1. cone-shaped reverse diversion furnace gas circulation device, it is characterized in that the new structure that the furnace atmosphere circulation device has adopted bevel-type deflector and reverse deflector to combine, this furnace atmosphere circulation device comprises: fire door (1), housing (2), workpiece (3), circulating fan (4), the reverse deflector in rear end (5), retort (6), ventilating duct (7), heating element heater (8), the reverse deflector of front end (9), front end conical baffle (10), blast fence (11), induced draft plate (12), bearing pin (13), rear end conical baffle (14), ventilating duct (7) is arranged in retort (6), one end of rear end conical baffle (14) is welded on the inboard of guide shell (7) end, induced draft plate (12) is connected into one with rear end conical baffle (14) by bearing pin (13), the reverse deflector in rear end (5) is welded on induced draft plate (12), the hand of spiral after the reverse deflector in rear end (5) is installed is opposite with the direction of rotation of circulating fan (4), circulating fan (4) is arranged on the assembling seat of retort (6), the reverse deflector of front end (9) is arranged on the outside of the front end of ventilating duct (7), the hand of spiral after the reverse deflector of front end (9) is installed is opposite with the direction of rotation of circulating fan (4), fire door (1) is positioned over the front end of retort, front end conical baffle (10) is arranged between ventilating duct (7) and fire door (1), blast fence (11) is arranged on the inboard of ventilating duct (7) front end.
2. cone-shaped reverse diversion furnace gas circulation device according to claim 1 is characterized in that air-flow ceaselessly circulates along gas channel after circulating fan is opened, and the heat that heating element heater is produced and process gas pass the workpiece in effective district fast.
3. cone-shaped reverse diversion furnace gas circulation device according to claim 1, is characterized in that shortening the distance of furnace atmosphere circulation by bevel-type deflector and the oppositely ingenious combination of deflector, improves air velocity, makes the circulation of furnace temperature and furnace gas more even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110114403 CN102235826B (en) | 2011-05-05 | 2011-05-05 | Cone-shaped reverse diversion furnace gas circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110114403 CN102235826B (en) | 2011-05-05 | 2011-05-05 | Cone-shaped reverse diversion furnace gas circulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235826A CN102235826A (en) | 2011-11-09 |
| CN102235826B true CN102235826B (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110114403 Active CN102235826B (en) | 2011-05-05 | 2011-05-05 | Cone-shaped reverse diversion furnace gas circulation device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706172A (en) * | 2012-01-16 | 2012-10-03 | 苏州工业园区姑苏科技有限公司 | Furnace gas circulating device of roasting furnace |
| JP5861080B2 (en) * | 2012-04-26 | 2016-02-16 | パナソニックＩｐマネジメント株式会社 | Hot air circulation heating device |
| CN105506230B (en) * | 2014-10-17 | 2017-12-05 | 丹阳市华丰精密配件厂 | Improved mechanical fitting heat treatment process fire door |
| CN105349938B (en) * | 2015-12-10 | 2018-07-24 | 贵州西南工具(集团)有限公司 | A kind of gas nitriding furnace air flow guiding round-robin method and device |
| CN107815522B (en) * | 2017-10-25 | 2020-04-10 | 中航工程集成设备有限公司 | Gas circulation flow guide system for heat treatment furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560348A (en) * | 1984-05-24 | 1985-12-24 | Abar Ipsen Industries | Gas nozzle for a heat treating furnace |
| CN2121668U (en) * | 1991-12-20 | 1992-11-11 | 机械电子工业部北京机电研究所 | Double room negative (or low) pressure high flow rate vacuum air quench oven |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| CN2291418Y (en) * | 1996-07-04 | 1998-09-16 | 董玉顺 | High-pressure, high flow-rate vacuum air-cooled glowing furnace |
| CN2517750Y (en) * | 2002-01-14 | 2002-10-23 | 张民苏 | Heat exchanging forced cooling appts. for copper tube continuous polishing and annealing furnace |
| CN201276581Y (en) * | 2008-10-30 | 2009-07-22 | 杭州鼎盛炉业有限公司 | Strong convection well type spheroidizing furnace |
| CN102003877A (en) * | 2010-11-29 | 2011-04-06 | 苏州中门子科技有限公司 | Multifunctional heat treatment furnace for seepage hydrogen and vacuum dehydrogenation of titanium alloy forging |
-
2011
- 2011-05-05 CN CN 201110114403 patent/CN102235826B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560348A (en) * | 1984-05-24 | 1985-12-24 | Abar Ipsen Industries | Gas nozzle for a heat treating furnace |
| CN2121668U (en) * | 1991-12-20 | 1992-11-11 | 机械电子工业部北京机电研究所 | Double room negative (or low) pressure high flow rate vacuum air quench oven |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| CN2291418Y (en) * | 1996-07-04 | 1998-09-16 | 董玉顺 | High-pressure, high flow-rate vacuum air-cooled glowing furnace |
| CN2517750Y (en) * | 2002-01-14 | 2002-10-23 | 张民苏 | Heat exchanging forced cooling appts. for copper tube continuous polishing and annealing furnace |
| CN201276581Y (en) * | 2008-10-30 | 2009-07-22 | 杭州鼎盛炉业有限公司 | Strong convection well type spheroidizing furnace |
| CN102003877A (en) * | 2010-11-29 | 2011-04-06 | 苏州中门子科技有限公司 | Multifunctional heat treatment furnace for seepage hydrogen and vacuum dehydrogenation of titanium alloy forging |
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| CN102235826A (en) | 2011-11-09 |
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