CN107490256A - Suction type electric heating drier - Google Patents
Suction type electric heating drier Download PDFInfo
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- CN107490256A CN107490256A CN201710862672.7A CN201710862672A CN107490256A CN 107490256 A CN107490256 A CN 107490256A CN 201710862672 A CN201710862672 A CN 201710862672A CN 107490256 A CN107490256 A CN 107490256A
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- electric heating
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- negative pressure
- drying
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- 238000005485 electric heating Methods 0.000 title claims abstract description 54
- 238000001035 drying Methods 0.000 claims abstract description 46
- 239000011229 interlayer Substances 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract 1
- 238000007791 dehumidification Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
本发明公开了一种负压式电加热干燥机，位于箱体内部的干燥室的顶部中心设置有风机室并安装有风机，在风机室上部设置有电加热室并安装有电加热装置，在干燥室与箱体之间设置有夹层腔；在箱体顶部设置有冷热空气交换装置，进风管道与电加热室入口连通，电加热室出口与夹层腔连通，在干燥室与夹层腔之间分布有一系列进风孔，干燥室顶部与风机室入口连通，风机室出口与所述排风管道连通。本发明通过负压方式能够全面吸收排放潮气，提高干燥效率。采用预热方式能够缩短加热时间，进一步提供干燥效率高。冷热空气交换装置能够实现能源回收利用，节约能源，降低成本。
The invention discloses a negative pressure electric heating dryer. A fan room and a fan are installed in the top center of the drying room inside the box body. An electric heating room is installed on the upper part of the fan room and an electric heating device is installed. There is an interlayer cavity between the drying chamber and the box body; a cold and hot air exchange device is installed on the top of the box body, the air inlet pipe is connected with the entrance of the electric heating chamber, the outlet of the electric heating chamber is connected with the interlayer cavity, and between the drying chamber and the interlayer cavity There are a series of air inlet holes distributed among them, the top of the drying chamber communicates with the inlet of the fan chamber, and the outlet of the fan chamber communicates with the exhaust duct. The invention can comprehensively absorb and discharge moisture through the negative pressure mode, and improve the drying efficiency. The heating time can be shortened by using the preheating method, which further improves the drying efficiency. The hot and cold air exchange device can realize energy recycling, save energy and reduce costs.
Description
技术领域technical field
本发明涉及干燥机技术领域，尤其涉及一种负压式电加热干燥机。The invention relates to the technical field of dryers, in particular to a negative pressure electric heating dryer.
背景技术Background technique
目前，烘干机种类较繁多，但仍存在能量损失严重，热量利用率低，热风在干燥箱内分布不均匀等问题。现有技术的干燥设备采用锅炉供给蒸汽，电阻加热、石英管热源、热泵、或直接烧柴、烧煤等热源作用到被干燥物体，通过热传递使热能到达物体内部，逐渐将整个物体水分向外蒸发。存在两个主要问题：第一是烘干效率低，不能完全排出所有潮气，仍然有没有散发的潮气存在于干燥室内，第二是热量损失严重，干燥成本高。At present, there are many types of dryers, but there are still problems such as serious energy loss, low heat utilization rate, and uneven distribution of hot air in the drying box. The drying equipment in the prior art adopts boiler to supply steam, resistance heating, quartz tube heat source, heat pump, or directly burning firewood, coal and other heat sources to act on the object to be dried, and the heat energy reaches the inside of the object through heat transfer, and gradually transfers the moisture of the entire object to Evaporate outside. There are two main problems: the first is that the drying efficiency is low, and all the moisture cannot be completely discharged, and there is still undistributed moisture in the drying room; the second is that the heat loss is serious and the drying cost is high.
发明内容Contents of the invention
本发明针对目前现有干燥机存在的技术问题，提供一种负压式电加热干燥机。The invention aims at the technical problems existing in the existing drying machines, and provides a negative pressure electric heating drying machine.
本发明采用以下技术方案：一种负压式电加热干燥机，包括电加热装置、风机、箱体和干燥室，位于箱体内部的干燥室的顶部中心设置有风机室并安装有风机，在风机室上部设置有电加热室并安装有电加热装置，在干燥室与箱体之间设置有夹层腔；在箱体顶部设置有冷热空气交换装置，冷热空气交换装置内的进风管道和排风管道并列分布，所述进风管道与电加热室入口连通，电加热室出口与夹层腔连通，在所述干燥室与夹层腔之间分布有一系列进风孔，干燥室顶部与所述风机室入口连通，风机室出口与所述排风管道连通。The present invention adopts the following technical solutions: a negative pressure electric heating dryer, including an electric heating device, a fan, a box body and a drying room, and a fan room and a fan are installed in the top center of the drying room inside the box body. The upper part of the fan room is equipped with an electric heating chamber and an electric heating device is installed, and an interlayer cavity is arranged between the drying chamber and the box body; It is distributed side by side with the exhaust duct, the air inlet duct communicates with the inlet of the electric heating chamber, the outlet of the electric heating chamber communicates with the interlayer chamber, a series of air inlet holes are distributed between the drying chamber and the interlayer chamber, the top of the drying chamber is connected to the The inlet of the fan chamber is connected, and the outlet of the fan chamber is connected with the exhaust duct.
所述排风管道位于进风管道的内部，可进行预热、余热回收、除湿，所述冷热气体交换装置放置在烘干箱顶部。所述电加热装置是在电加热室内设置若干电加热丝，电加热丝固定在烤箱的内部上端，与干燥室隔开。箱体外侧采用隔热材料。负压风机工作时干燥室内的气压减小，外部空气开始缓慢进入。The exhaust duct is located inside the air intake duct, which can perform preheating, waste heat recovery, and dehumidification. The hot and cold gas exchange device is placed on the top of the drying box. The electric heating device is provided with several electric heating wires in the electric heating chamber, and the electric heating wires are fixed on the inner upper end of the oven and separated from the drying chamber. The outside of the box is made of heat insulating material. When the negative pressure fan works, the air pressure in the drying room decreases, and the outside air begins to enter slowly.
在所述电加热室内侧安装有进口散风调节机构，所述进口散风调节机构的中部为锥形实心板，位于锥形实心板的周边延伸分布有带均布微孔的进口散风调节板；同时在电加热室内周边设置有导向杆，导向杆上套装有滑套，滑套下方安装有弹簧，所述滑套与进口散风调节板的边缘固定在一起。An imported diffused air adjustment mechanism is installed on the inside of the electric heating chamber. The middle part of the imported diffused air adjustment mechanism is a conical solid plate, and an imported diffused air regulator with evenly distributed micro-holes is distributed around the conical solid plate. At the same time, a guide rod is set on the periphery of the electric heating chamber, a sliding sleeve is set on the guide rod, and a spring is installed under the sliding sleeve, and the sliding sleeve is fixed with the edge of the imported diffused air regulating plate.
在所述夹层腔内侧安装有出口散风调节机构，所述出口散风调节机构的中部为锥形实心板，位于锥形实心板的周边延伸分布有带均布微孔的出口散风调节板；同时在夹层腔内周边设置有导向杆，导向杆上套装有滑套，滑套下方安装有弹簧，所述滑套与出口散风调节板的边缘固定在一起。An outlet diffused air adjustment mechanism is installed inside the interlayer cavity, the middle part of the outlet diffused air adjustment mechanism is a conical solid plate, and an outlet diffused air adjustment plate with evenly distributed micro-holes is distributed on the periphery of the conical solid plate ; At the same time, a guide rod is set on the periphery of the interlayer cavity, a sliding sleeve is set on the guide rod, and a spring is installed under the sliding sleeve, and the sliding sleeve is fixed with the edge of the outlet diffuser adjustment plate.
有益效果：本发明将冷热空气交换装置中排湿管路在进气管路的内部；电加热丝放置在电加热丝内部；高温气体通道设置在箱体两边的内壁上，出风口处采用多排的连续小孔；外部空气通过冷热空气交换装置进入电加热室，电加热室通过高温气体通道与干燥室相通，干燥室通过负压风机与排湿管路相通。在进气口管道内部可进行预热、余热回收、除湿，负压风机工作时干燥室内的气压减小，外部空气开始缓慢进入。通过负压方式能够全面吸收排放潮气，提高干燥效率。采用预热方式能够缩短加热时间，进一步提供干燥效率高。冷热空气交换装置能够实现能源回收利用，节约能源，降低成本。Beneficial effects: the present invention puts the dehumidification pipeline in the hot and cold air exchange device inside the intake pipeline; the electric heating wire is placed inside the electric heating wire; Rows of continuous small holes; external air enters the electric heating chamber through the hot and cold air exchange device, the electric heating chamber communicates with the drying chamber through the high-temperature gas channel, and the drying chamber communicates with the dehumidification pipeline through the negative pressure fan. Preheating, waste heat recovery, and dehumidification can be carried out inside the air inlet pipe. When the negative pressure fan works, the air pressure in the drying room decreases, and the outside air begins to slowly enter. The negative pressure method can fully absorb and discharge moisture and improve drying efficiency. The heating time can be shortened by using the preheating method, which further improves the drying efficiency. The hot and cold air exchange device can realize energy recovery and utilization, save energy and reduce costs.
附图说明Description of drawings
图1为本发明的外部结构示意图。Fig. 1 is a schematic diagram of the external structure of the present invention.
图2为本发明内部结构的前视图。Fig. 2 is a front view of the internal structure of the present invention.
图3为本发明内部结构的侧视图。Fig. 3 is a side view of the internal structure of the present invention.
图4是图2的A-A剖面结构示意图。FIG. 4 is a schematic diagram of the A-A section structure in FIG. 2 .
图5是图3的B-B剖面结构示意图。FIG. 5 is a schematic diagram of the B-B section structure in FIG. 3 .
图6是进风散风缓冲装置。Fig. 6 is the buffering device for air intake and scattering.
图7是出风散风缓冲装置。Fig. 7 is a wind-dissipating wind buffering device.
图中标号：1为冷热空气交换装置，2为进风管道，3为排风管道，4为电加热丝，5为风机，6为风叶，7为夹层腔，8为风机室，9为增强柱，10为加强杆，11为进风孔，12为合页，13为机箱，14为电加热室，15为干燥室，16为加热进风口，17为导流板，18为加热出风口，19为进口散风调节板，20为锥形实心板，21为导向杆，22为滑套，23为弹簧，24为出口散风调节板，25为锥形实心板，26为引风管。Numbers in the figure: 1 is the hot and cold air exchange device, 2 is the air inlet pipe, 3 is the exhaust pipe, 4 is the electric heating wire, 5 is the fan, 6 is the fan blade, 7 is the interlayer cavity, 8 is the fan room, 9 10 is a reinforcement column, 10 is a reinforcing rod, 11 is an air inlet, 12 is a hinge, 13 is a chassis, 14 is an electric heating room, 15 is a drying room, 16 is a heating air inlet, 17 is a deflector, and 18 is a heating Air outlet, 19 is the inlet diffused air regulating plate, 20 is the conical solid plate, 21 is the guide rod, 22 is the sliding sleeve, 23 is the spring, 24 is the outlet diffused air regulating plate, 25 is the conical solid plate, 26 is the guide air duct.
具体实施方式detailed description
实施例1：如图1-图3所示的负压式电加热干燥机，包括电加热装置、风机5、箱体和干燥室15等。箱体侧面设置箱门，顶部安装在箱体顶部设置有冷热空气交换装置1，冷热空气交换装置1内的进风管道2和排风管道3并列分布，所述排风管道3位于进风管道2的内部，可进行预热、余热回收、除湿，所述冷热气体交换装置放置在烘干箱顶部。Embodiment 1: A negative pressure electric heating dryer as shown in Figures 1-3, including an electric heating device, a fan 5, a box body, and a drying chamber 15. A box door is arranged on the side of the box body, and a hot and cold air exchange device 1 is installed on the top of the box body. The air inlet duct 2 and the exhaust duct 3 in the hot and cold air exchange device 1 are arranged side by side, and the exhaust duct 3 is located at the inlet. The inside of the air duct 2 can be preheated, waste heat recovered, and dehumidified, and the hot and cold gas exchange device is placed on the top of the drying box.
具体地，参见图4和图5所示，箱体内部的下侧大部分区域为干燥室15，干燥室15的顶部中心设置有风机室8并安装有风机5，在风机室8上部设置有电加热室14并安装有电加热装置。电加热装置是在电加热室14内设置若干电加热丝4，电加热丝4固定在烤箱的内部上端，与干燥室15隔开。箱体外侧采用隔热材料。Specifically, referring to Fig. 4 and shown in Fig. 5, most of the lower side area inside the casing is a drying chamber 15, the top center of the drying chamber 15 is provided with a blower chamber 8 and a blower fan 5 is installed, and on the top of the blower chamber 8 is provided with The electric heating chamber 14 is equipped with an electric heating device. The electric heating device is that several electric heating wires 4 are arranged in the electric heating chamber 14, and the electric heating wires 4 are fixed on the inner upper end of the oven, and are separated from the drying chamber 15. The outside of the box is made of heat insulating material.
又在干燥室15与箱体之间设置有夹层腔7或者干燥管路，进风管道2与电加热室14入口连通，电加热室14出口与夹层腔7连通，在所述干燥室15与夹层腔7之间分布有一系列进风孔11，干燥室15顶部与所述风机室8入口连通，风机室8出口与所述排风管道3连通。负压风机工作时干燥室15内的气压减小，外部空气开始缓慢进入。将冷热空气交换装置1中排湿管路在进气管路的内部。在进气口管道内部可进行预热、余热回收、除湿，负压风机工作时干燥室15内的气压减小，外部空气开始缓慢进入。通过负压方式能够全面吸收排放潮气，提高干燥效率。采用预热方式能够缩短加热时间，进一步提供干燥效率高。Between the drying chamber 15 and the casing, an interlayer chamber 7 or a drying pipeline are arranged, the air inlet duct 2 is communicated with the entrance of the electric heating chamber 14, and the outlet of the electric heating chamber 14 is communicated with the interlayer chamber 7. Between the drying chamber 15 and the A series of air inlet holes 11 are distributed between the interlayer chambers 7 , the top of the drying chamber 15 communicates with the inlet of the fan chamber 8 , and the outlet of the fan chamber 8 communicates with the exhaust duct 3 . When the negative pressure blower works, the air pressure in the drying chamber 15 decreases, and the outside air begins to slowly enter. The dehumidification pipeline in the cold and hot air exchange device 1 is inside the intake pipeline. Preheating, waste heat recovery, and dehumidification can be carried out inside the air inlet pipe. When the negative pressure fan works, the air pressure in the drying chamber 15 decreases, and external air begins to slowly enter. The negative pressure method can fully absorb and discharge moisture and improve drying efficiency. The heating time can be shortened by using the preheating method, which further improves the drying efficiency.
实施例2：在实施例1基础上，又在所述电加热,14内侧安装有进口散风调节机构，参见图6，所述进口散风调节机构的中部为锥形实心板20，位于锥形实心板20的周边延伸分布有带均布微孔的进口散风调节板19；同时在电加热室14内周边设置有导向杆21，导向杆21上套装有滑套22，滑套22下方安装有弹簧23，所述滑套22与进口散风调节板19的边缘固定在一起。Embodiment 2: On the basis of Embodiment 1, an inlet diffused air adjustment mechanism is installed on the inner side of the electric heater 14, see Fig. 6, the middle part of the inlet diffused air adjustment mechanism is a conical solid plate 20, which is located in the cone The periphery of the shaped solid plate 20 is extended and distributed with an imported diffused air regulating plate 19 with evenly distributed micropores; at the same time, a guide rod 21 is arranged on the inner periphery of the electric heating chamber 14, and a sliding sleeve 22 is set on the guide rod 21, and the sliding sleeve 22 below A spring 23 is installed, and the sliding sleeve 22 is fixed with the edge of the inlet diffuser adjustment plate 19 .
同时，又在所述夹层腔7内侧安装有出口散风调节机构，参见图7，所述出口散风调节机构的中部为锥形实心板25，位于锥形实心板25的周边延伸分布有带均布微孔的出口散风调节板24；同时在夹层腔7内周边设置有导向杆21，导向杆21上套装有滑套22，滑套22下方安装有弹簧23，所述滑套22与出口散风调节板24的边缘固定在一起。Simultaneously, an outlet diffused air regulating mechanism is installed inside the interlayer chamber 7, referring to Fig. 7, the middle part of the outlet diffused air regulating mechanism is a conical solid plate 25, and there are bands extending and distributed around the conical solid plate 25. The outlet scattered air regulating plate 24 of evenly distributed micropores; meanwhile, a guide rod 21 is arranged on the inner periphery of the interlayer cavity 7, and a sliding sleeve 22 is set on the guide rod 21, and a spring 23 is installed below the sliding sleeve 22, and the sliding sleeve 22 and the The edges of the outlet diffused air regulating plate 24 are fixed together.
Claims (6)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341229A (en) * | 2018-11-19 | 2019-02-15 | 郑州容大科技股份有限公司 | A negative pressure carbon fiber far-infrared electric heating plate dryer |
| CN111664658A (en) * | 2020-05-26 | 2020-09-15 | 冯丹丹 | Circumference multistage distributing type herbal pieces-stoving dehydrating unit |
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| CN2609320Y (en) * | 2003-03-13 | 2004-03-31 | 张明德 | Hot air oven for printed circuit boards |
| CN101307982A (en) * | 2008-07-03 | 2008-11-19 | 南阳防爆集团有限公司 | Energy-saving explosion-proof drying furnace and its drying monitoring system |
| CN206291434U (en) * | 2016-11-01 | 2017-06-30 | 广东绿康空气净化工程有限公司 | Central air-conditioning ionizing particle diffusing device |
| CN206440074U (en) * | 2017-01-13 | 2017-08-25 | 华北电力大学（保定） | A kind of electric heating drier with heat reclamation device |
| CN207831808U (en) * | 2017-09-22 | 2018-09-07 | 河南农业大学 | Suction type electric heating drier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109341229A (en) * | 2018-11-19 | 2019-02-15 | 郑州容大科技股份有限公司 | A negative pressure carbon fiber far-infrared electric heating plate dryer |
| CN111664658A (en) * | 2020-05-26 | 2020-09-15 | 冯丹丹 | Circumference multistage distributing type herbal pieces-stoving dehydrating unit |
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| CN107490256B (en) | 2023-03-31 |
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