CN106949719A - A kind of drying unit circulated based on air heat energy - Google Patents

A kind of drying unit circulated based on air heat energy Download PDF

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CN106949719A
CN106949719A CN201710339143.9A CN201710339143A CN106949719A CN 106949719 A CN106949719 A CN 106949719A CN 201710339143 A CN201710339143 A CN 201710339143A CN 106949719 A CN106949719 A CN 106949719A
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chamber
air
heat
wet
dried
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杨天津
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Gutian Ke Ke Drying Equipment Technology Co Ltd
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Gutian Ke Ke Drying Equipment Technology Co Ltd
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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
    • F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
    • A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
    • F26B21/25—
    • 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
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying
    • 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)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The present invention proposes that a kind of drying unit circulated based on air heat energy, including siccative are dried chamber, wet feed and dry chamber, thermal source, recuperation of heat gas circuit and blast apparatus；Siccative dries chamber and communicated with wet feed baking chamber；Wet feed dries chamber and communicated with recuperation of heat gas circuit；It is the chamber that half dry material small to water content is dried that siccative, which dries chamber,；It is the chamber that the wet stock big to water content is dried that wet feed, which dries chamber,；Extraneous air first enters siccative baking double of dry material of chamber after being heated through thermal source through fresh air channel is dried；Wet feed baking chamber is entered back into dry wet stock；The hot-air that wet feed is dried in chamber enters recuperation of heat gas circuit；Recuperation of heat gas circuit includes the hydrofuge passage communicated with outside and dries the return air channel that chamber is communicated with wet feed；Into a hot-air part for recuperation of heat gas circuit from the discharge of hydrofuge passage, another part is back to wet feed through return air channel and dried in chamber；The present invention can carry out high-quality drying to the white fungus of different humidity simultaneously with air heat energy, economic and environment-friendly.

Description

一种基于空气热能循环的烘干装置A drying device based on air thermal energy circulation

技术领域technical field

本发明涉及食品加工机械领域，尤其是一种基于空气热能循环的烘干装置。The invention relates to the field of food processing machinery, in particular to a drying device based on air thermal energy circulation.

背景技术Background technique

银耳是常见的食用菌，但对银耳在烘干作业时，不同湿度的银耳对烘干环境的要求是不同的，例如湿度大的银耳如果以高温进行烘干，则容易使银耳被熟化失去价值；但如果专门针对不同湿度的银耳物料单独烘干，则又会加大成本，此外，旧的银耳烘干工艺多采用木柴、烘炉为热源，容易影响环境。Tremella is a common edible fungus, but when drying tremella, tremella with different humidity has different requirements for the drying environment. For example, if the tremella with high humidity is dried at high temperature, the tremella will be ripened and lose its value. However, if the white fungus materials with different humidity are dried separately, the cost will be increased. In addition, the old white fungus drying process mostly uses wood and ovens as heat sources, which is easy to affect the environment.

发明内容Contents of the invention

本发明提出一种基于空气热能循环的烘干装置，能以空气热能同时对不同湿度的银耳进行高质量的烘干，经济环保。The invention proposes a drying device based on air thermal energy circulation, which can simultaneously dry white fungus with different humidity with high quality by using air thermal energy, and is economical and environment-friendly.

本发明采用以下技术方案。The present invention adopts the following technical solutions.

一种基于空气热能循环的烘干装置，能以空气热能对食用菌进行烘干，所述烘干装置包括干料烘腔、湿料烘腔、热源、热回收气路和鼓风设备；所述干料烘腔与湿料烘腔相通；湿料烘腔与热回收气路相通；所述干料烘腔为对含水量小的半干物料进行烘干的腔室；所述湿料烘腔为对含水量大的湿物料进行烘干的腔室；外部空气经热源加热后，在鼓风设备风压作用下先经新风通道进入干料烘腔对半干物料进行烘干；再进入湿料烘腔对湿物料进行烘干；湿料烘腔内的热空气在风压作用下进入热回收气路；所述热回收气路包括与外部相通的排湿通道和与湿料烘腔相通的回风通道；进入热回收气路的热空气一部分从排湿通道排出，另一部分经回风通道返回至湿料烘腔内。A drying device based on air thermal energy circulation, capable of drying edible fungi with air thermal energy, the drying device includes a dry material drying chamber, a wet material drying chamber, a heat source, a heat recovery air circuit and air blowing equipment; The dry material drying chamber communicates with the wet material drying chamber; the wet material drying chamber communicates with the heat recovery gas path; the dry material drying chamber is a chamber for drying semi-dry materials with low water content; the wet material drying chamber The chamber is a chamber for drying wet materials with high water content; after the external air is heated by a heat source, under the action of the wind pressure of the blower equipment, it first enters the dry material drying chamber through the fresh air channel to dry the semi-dry materials; The wet material drying chamber dries the wet material; the hot air in the wet material drying chamber enters the heat recovery air path under the wind pressure; the heat recovery air path includes a dehumidification channel communicating with the outside and a Connected return air passage; part of the hot air entering the heat recovery air passage is discharged from the dehumidification passage, and the other part is returned to the wet material drying chamber through the return air passage.

所述热源包括第一热交换器和第二热交换器；所述第一热交换器设于新风通道处，对进入烘干装置的外部空气进行加热；所述第二热交换器设于回风通道处，对进入回风通道的热空气进行重加热；所述回风通道处设有风扇对热空气加压。The heat source includes a first heat exchanger and a second heat exchanger; the first heat exchanger is arranged at the fresh air channel to heat the external air entering the drying device; the second heat exchanger is arranged at the return At the air passage, the hot air entering the return air passage is reheated; the return air passage is provided with a fan to pressurize the hot air.

所述第一热交换器和第二交换器内均设有以热交换管密集盘成的放热管网；所述第一热交换器和第二交换器的热交换管内设有冷媒，第一热交换器和第二交换器均以冷媒管道与压缩机、吸热器相连；所述吸热器位于烘干装置的机壳外，吸热器内设有以热交换管密集盘成的吸热管网；所述压缩机驱动冷媒在冷媒管内流动，当冷媒流至吸热器时，冷媒在吸热管网内膨胀以吸收外部空气中的热，当冷媒流至第一热交换器和第二交换器时，冷媒在放热管网内被压缩以释放热能来加热进入烘干装置的外部空气。Both the first heat exchanger and the second exchanger are provided with a heat release pipe network composed of densely packed heat exchange tubes; the heat exchange tubes of the first heat exchanger and the second exchanger are provided with a refrigerant, and the second Both the first heat exchanger and the second exchanger are connected with the compressor and the heat absorber through refrigerant pipes; Heat-absorbing pipe network; the compressor drives the refrigerant to flow in the refrigerant pipe. When the refrigerant flows to the heat absorber, the refrigerant expands in the heat-absorbing pipe network to absorb the heat in the external air. When the refrigerant flows to the first heat exchanger And the second exchanger, the refrigerant is compressed in the heat release pipe network to release heat energy to heat the external air entering the drying device.

使用所述烘干装置对物料进行烘干的方法依次包括以下步骤；The method for drying materials using the drying device includes the following steps in sequence;

A1、在干料烘腔内放入含水量小的半干物料；在湿料烘腔内放入含水量大的湿物料；A1. Put semi-dry materials with low water content into the dry material drying chamber; put wet materials with high water content into the wet material drying chamber;

A2、鼓风设备启动把外部空气吸入烘干装置，外部空气经第一热交换器加热后，在鼓风设备风压作用下先经新风通道进入干料烘腔对半干物料进行烘干；A2. The blower equipment starts to suck the external air into the drying device. After the external air is heated by the first heat exchanger, under the wind pressure of the blower equipment, it first enters the dry material drying chamber through the fresh air channel to dry the semi-dry material;

A3、干料烘腔内的热空气经风孔进入湿料烘腔对湿物料进行烘干；A3. The hot air in the dry material drying chamber enters the wet material drying chamber through the air hole to dry the wet material;

A4、湿料烘腔内的热空气进入热回收气路；进入热回收气路的热空气一部分从排湿通道排出，另一部分进入回风通道；在风扇驱动下经回风通道返回至湿料烘腔内继续烘干湿物料；A4. The hot air in the wet material drying chamber enters the heat recovery air path; part of the hot air entering the heat recovery air path is discharged from the dehumidification channel, and the other part enters the return air channel; driven by the fan, it returns to the wet material through the return air channel Continue to dry wet materials in the drying chamber;

A5、当干料烘腔内的物料的干燥度达到预定要求后，从干料烘腔内取出物料；然后再把湿料烘腔内的物料转移至干料烘腔内。A5. When the dryness of the material in the dry material drying chamber reaches the predetermined requirement, take out the material from the dry material drying chamber; then transfer the material in the wet material drying chamber to the dry material drying chamber.

在步骤A2中，干料烘腔的温度范围为摄氏70度至80度之间；在步骤A3中，湿料烘腔的温度为摄氏50度。In step A2, the temperature range of the dry material drying chamber is between 70°C and 80°C; in step A3, the temperature of the wet material drying chamber is 50°C.

所述压缩机为电动压缩机；排湿通道处设有辅助进气口；干料烘腔与湿料烘腔之间以隔板分隔；隔板处设有风孔。The compressor is an electric compressor; an auxiliary air inlet is provided at the dehumidification channel; the dry material drying chamber and the wet material drying chamber are separated by a partition; the partition is provided with an air hole.

两组烘干装置以共用热交换器方式组合成一烘干房，每烘干房包括两块热交换器、两组鼓风设备、两组新风口、两组排湿口、多个烘仓；烘仓包括干料烘腔、湿料烘腔、热回收装置和两台空气能热泵外机；所述干料烘腔位于下层而湿料烘腔位于上层；热交换器内置热回收气路；空气能热泵外机内置有压缩机；空气能热泵与热交换器相连。Two sets of drying devices are combined into a drying room by sharing heat exchangers, and each drying room includes two heat exchangers, two sets of blowing equipment, two sets of fresh air outlets, two sets of dehumidification outlets, and multiple drying chambers; The drying chamber includes a dry material drying chamber, a wet material drying chamber, a heat recovery device and two air source heat pump external units; the dry material drying chamber is located on the lower floor and the wet material drying chamber is located on the upper floor; the heat exchanger has a built-in heat recovery air circuit; The external unit of the air source heat pump has a built-in compressor; the air source heat pump is connected to the heat exchanger.

外部空气经热回收器加热后，在鼓风设备风压作用下，先经新风通道进入下层干料烘腔处的第一热交换器重新加热；再通过风机进入风道对半干物料进行层层烘干；然后一部分热空气经隔板的风孔进入湿料烘腔对湿物料进行烘干；另一部分热空气经下层烘腔的排气道输出至新风通道与新风混合，再次进入第一热交换器重新加热；从湿料烘腔输出的热空气一部分进烘仓上层回风通道和烘仓上层的辅助进气口的空气混合后经第二热交换器加热，以此循环；另一部分从湿料烘腔输出的热空气携带大量水气的热空气往排湿风道排出。After the external air is heated by the heat recovery device, under the action of the wind pressure of the blower equipment, it first enters the first heat exchanger at the dry material drying chamber of the lower layer through the fresh air channel to reheat; then enters the air channel through the fan to layer the semi-dry material Then part of the hot air enters the wet material drying chamber through the air hole of the partition to dry the wet material; the other part of the hot air is output to the fresh air channel through the exhaust channel of the lower drying chamber to mix with the fresh air, and then enters the first The heat exchanger reheats; part of the hot air output from the wet material drying chamber enters the upper return air channel of the drying chamber and the air mixed with the auxiliary air inlet on the upper layer of the drying chamber, and then is heated by the second heat exchanger to circulate; the other part The hot air output from the wet material drying chamber carries a large amount of moisture and is discharged to the dehumidification air duct.

所述物料为银耳，所述干料烘腔、湿料烘腔内均匀设置银耳烘架以使银耳均匀放置；湿料烘腔侧壁处设有湿腔热回收通道与热回收气路相通，湿腔热回收通道使湿腔热空气中的一部分直排至热回收气路，用以强化湿腔热空气的热量回收；干料烘腔侧壁处设有干腔热回收通道与新风通道相通，干腔热回收通道使干腔热空气中的一部分直排至新风通道，用以强化对新吸入外部空气的加热。The material is tremella, and tremella drying racks are evenly arranged in the dry material drying chamber and the wet material drying chamber to place the tremella evenly; the side wall of the wet material drying chamber is provided with a heat recovery channel in the wet chamber to communicate with the heat recovery gas path, The heat recovery channel of the wet chamber allows a part of the hot air in the wet chamber to be directly discharged to the heat recovery air path to strengthen the heat recovery of the hot air in the wet chamber; the side wall of the dry material drying chamber is provided with a dry chamber heat recovery channel that communicates with the fresh air channel , The dry cavity heat recovery channel makes a part of the hot air in the dry cavity straightly discharged to the fresh air channel to strengthen the heating of the newly inhaled external air.

干料烘腔内的半干银耳物料湿度范围为10-40%RH之间，湿料烘腔内的湿银耳物料湿度范围为40-95%RH之间。The humidity range of the semi-dry white fungus material in the dry material drying chamber is between 10-40%RH, and the humidity range of the wet white fungus material in the wet material drying chamber is between 40-95%RH.

本发明中，外部空气经热源加热后，在鼓风设备风压作用下先经新风通道进入干料烘腔对半干物料进行烘干；再进入湿料烘腔对湿物料进行烘干；该设计使得热空气在干料烘腔内先释放一部分热量，降温并携带水气后，再进入湿料烘腔，由于携带大量水气的热空气的比热容增大，其释放热量的速度也较为恒定，而且能更好地与皱褶度很大的银耳表面接触并加热，从而让湿料烘腔内的湿银耳能在稳定的湿热环境下释放水份，达到半干状态，不易熟化，而且银耳在湿热环境下烘干时其整体湿度更易于控制，不易在银耳物料上出现半干半湿的状态，对后续的进一步烘干更有利。In the present invention, after the external air is heated by the heat source, under the action of the wind pressure of the blower device, it first enters the dry material drying chamber through the fresh air channel to dry the semi-dry material; then enters the wet material drying chamber to dry the wet material; The design allows the hot air to release part of the heat in the dry material drying chamber first, and then enter the wet material drying chamber after cooling down and carrying water vapor. Because the specific heat capacity of the hot air carrying a large amount of water vapor increases, the rate of heat release is also relatively constant , and can better contact and heat the surface of the white fungus with a large wrinkle, so that the wet white fungus in the wet material drying chamber can release water in a stable humid and hot environment, and reach a semi-dry state, which is not easy to ripen, and the white fungus When drying in a hot and humid environment, its overall humidity is easier to control, and it is not easy to appear a half-dry and half-wet state on the tremella material, which is more beneficial to subsequent further drying.

本发明中，湿料烘腔内的热空气在风压作用下进入热回收气路；所述热回收气路包括与外部相通的排湿通道和与湿料烘腔相通的回风通道；进入热回收气路的热空气一部分从排湿通道排出，另一部分经回风通道返回至湿料烘腔内；该设计使得湿料烘腔内的湿度易于控制，而且能回收大量热能，节能环保。In the present invention, the hot air in the wet material drying chamber enters the heat recovery air path under the action of wind pressure; the heat recovery air path includes a dehumidification passage communicated with the outside and a return air passage communicated with the wet material drying chamber; Part of the hot air in the heat recovery air path is discharged from the dehumidification channel, and the other part is returned to the wet material drying chamber through the return air channel; this design makes it easy to control the humidity in the wet material drying chamber, and can recover a large amount of heat energy, which is energy-saving and environmentally friendly.

本发明中，所述第一热交换器和第二交换器内均设有以热交换管密集盘成的放热管网；所述第一热交换器和第二交换器的热交换管内设有冷媒，第一热交换器和第二交换器均以冷媒管道与压缩机、吸热器相连；所述吸热器位于烘干装置的机壳外，吸热器内设有以热交换管密集盘成的吸热管网；所述压缩机驱动冷媒在冷媒管内流动，当冷媒流至吸热器时，冷媒在吸热管网内膨胀以吸收外部空气中的热，当冷媒流至第一热交换器和第二交换器时，冷媒在放热管网内被压缩以释放热能来加热进入烘干装置的外部空气；该设计仿照空气能热水器的原理，直接从空气中吸能并释放在烘干装置内，无须使用木柴等燃料，绿色环保，而且该方式能达到空调设备的精确控温效果，对提升银耳的烘干质量十分有益。In the present invention, both the first heat exchanger and the second exchanger are provided with a heat release pipe network composed of heat exchange tubes; the heat exchange tubes of the first heat exchanger and the second exchanger are provided with There is a refrigerant, the first heat exchanger and the second exchanger are connected with the compressor and the heat absorber through refrigerant pipes; A heat-absorbing pipe network composed of dense disks; the compressor drives the refrigerant to flow in the refrigerant pipe. When the refrigerant flows to the heat absorber, the refrigerant expands in the heat-absorbing pipe network to absorb the heat in the external air. When the refrigerant flows to the second In the first heat exchanger and the second exchanger, the refrigerant is compressed in the heat release pipe network to release heat energy to heat the external air entering the drying device; this design imitates the principle of an air energy water heater, directly absorbing and releasing energy from the air In the drying device, there is no need to use firewood and other fuels, which is green and environmentally friendly, and this method can achieve the precise temperature control effect of air-conditioning equipment, which is very beneficial to improving the drying quality of white fungus.

本发明由于采用了干料烘腔、湿料烘腔的相互配合作业方式，从而形成了简易的流水线作业方式，以湿热空气对湿银耳烘干使之达到预定干燥度后，再转入干料烘腔内快速烘干；这样的银耳物料流转，提高了烘干效率，而且有利于保障烘干的连续性以提升烘干质量。Because the present invention adopts the mutual operation mode of the dry material drying chamber and the wet material drying chamber, a simple assembly line operation mode is formed, and the wet tremella is dried with hot and humid air to reach a predetermined dryness, and then transferred to the dry material. Rapid drying in the drying chamber; the circulation of such white fungus materials improves the drying efficiency, and is conducive to ensuring the continuity of drying to improve the drying quality.

本发明中，出风孔就是下层干料烘腔的排湿口，也是上层湿料烘腔的新风口，因下层是烘半干物料湿度只有10-40%RH之间，上层是烘湿物料湿度在40-95%RH之间，所以在不影响上层烘腔的温湿度的情况下，起到了百分百回收下层的热能。In the present invention, the air outlet is the moisture outlet of the lower dry material drying chamber, and also the new air outlet of the upper wet material drying chamber, because the lower layer is semi-dried material with a humidity of only 10-40%RH, and the upper layer is the dried material The humidity is between 40-95%RH, so it can recover 100% of the heat energy of the lower layer without affecting the temperature and humidity of the upper drying chamber.

本发明由于采用两次烘干，且以湿热空气在湿料烘腔内对湿银耳进行烘干，从而使得湿银耳的中间烘干度容易控制，湿料烘腔内的热空气湿度即可做为湿料烘腔内银耳烘干所要达到的湿度阈值使用。The present invention adopts two times of drying, and uses hot and humid air to dry the wet tremella in the wet material drying chamber, so that the intermediate drying degree of the wet tremella is easy to control, and the humidity of the hot air in the wet material drying chamber can be adjusted. It is used for the humidity threshold to be achieved in the drying of white fungus in the wet material drying chamber.

附图说明Description of drawings

下面结合附图和具体实施方式对本发明进一步详细的说明：Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

附图1是本发明的示意图；Accompanying drawing 1 is the schematic diagram of the present invention;

附图2是本发明的新风通道、干料烘腔、湿料烘腔处的局部放大示意图；Accompanying drawing 2 is the partially enlarged schematic view of fresh air channel, dry material drying chamber and wet material drying chamber of the present invention;

附图3是本发明的另一方向上的剖切示意图；Accompanying drawing 3 is the sectional schematic diagram on another direction of the present invention;

附图4是本发明的空气流动示意图；Accompanying drawing 4 is the airflow schematic diagram of the present invention;

图中：1-干料烘腔；2-新风通道；3-第一热交换器；4-湿料烘腔；5-风孔；6-热回收气路；7-第二热交换器；8-热源；9-隔板；10-排湿通道；11-回风通道；12-银耳烘架；13-辅助进气口；15-辅助新风口；16-湿腔热回收通道；17-干腔热回收通道；18-烘仓。In the figure: 1-dry material drying chamber; 2-fresh air channel; 3-first heat exchanger; 4-wet material drying chamber; 5-wind hole; 6-heat recovery gas path; 7-second heat exchanger; 8-Heat source; 9-Separator; 10-Humidity discharge channel; 11-Return air channel; 12-Tremella drying rack; 13-Auxiliary air inlet; Dry chamber heat recovery channel; 18-drying chamber.

具体实施方式detailed description

如图1-4所示，一种基于空气热能循环的烘干装置，能以空气热能对食用菌进行烘干，所述烘干装置包括干料烘腔1、湿料烘腔4、热源8、热回收气路6和鼓风设备；所述干料烘腔1与湿料烘腔4相通；湿料烘腔4与热回收气路6相通；所述干料烘腔1为对含水量小的半干物料进行烘干的腔室；所述湿料烘腔4为对含水量大的湿物料进行烘干的腔室；外部空气经热源8加热后，在鼓风设备风压作用下先经新风通道2进入干料烘腔对半干物料进行烘干；再进入湿料烘腔对湿物料进行烘干；湿料烘腔内的热空气在风压作用下进入热回收气路6；所述热回收气路包括与外部相通的排湿通道10和与湿料烘腔相通的回风通道11；进入热回收气路的热空气一部分从排湿通道排出，另一部分经回风通道返回至湿料烘腔内。As shown in Figures 1-4, a drying device based on air heat energy circulation can dry edible fungi with air heat energy. The drying device includes a dry material drying chamber 1, a wet material drying chamber 4, and a heat source 8 , heat recovery gas path 6 and blast equipment; the dry material drying chamber 1 communicates with the wet material drying chamber 4; the wet material drying chamber 4 communicates with the heat recovery gas path 6; the dry material drying chamber 1 is used to control the water content A chamber for drying small semi-dry materials; the wet material drying chamber 4 is a chamber for drying wet materials with high water content; after the external air is heated by the heat source 8, it is First enter the dry material drying chamber through the fresh air channel 2 to dry the semi-dry materials; then enter the wet material drying chamber to dry the wet materials; the hot air in the wet material drying chamber enters the heat recovery air path 6 under the action of wind pressure The heat recovery air path includes a moisture discharge channel 10 communicating with the outside and a return air channel 11 communicating with the wet material drying chamber; part of the hot air entering the heat recovery air circuit is discharged from the moisture discharge channel, and the other part passes through the return air channel Return to the wet material drying chamber.

所述热源包括第一热交换器3和第二热交换器7；所述第一热交换器设于新风通道处，对进入烘干装置的外部空气进行加热；所述第二热交换器设于回风通道处，对进入回风通道的热空气进行重加热；所述回风通道处设有风扇对热空气加压。The heat source includes a first heat exchanger 3 and a second heat exchanger 7; the first heat exchanger is arranged at the fresh air channel to heat the external air entering the drying device; the second heat exchanger is provided At the return air channel, the hot air entering the return air channel is reheated; the return air channel is provided with a fan to pressurize the hot air.

所述第一热交换器和第二交换器内均设有以热交换管密集盘成的放热管网；所述第一热交换器和第二交换器的热交换管内设有冷媒，第一热交换器和第二交换器均以冷媒管道与压缩机、吸热器相连；所述吸热器位于烘干装置的机壳外，吸热器内设有以热交换管密集盘成的吸热管网；所述压缩机驱动冷媒在冷媒管内流动，当冷媒流至吸热器时，冷媒在吸热管网内膨胀以吸收外部空气中的热，当冷媒流至第一热交换器和第二交换器时，冷媒在放热管网内被压缩以释放热能来加热进入烘干装置的外部空气。Both the first heat exchanger and the second exchanger are provided with a heat release pipe network composed of densely packed heat exchange tubes; the heat exchange tubes of the first heat exchanger and the second exchanger are provided with a refrigerant, and the second Both the first heat exchanger and the second exchanger are connected with the compressor and the heat absorber through refrigerant pipes; Heat-absorbing pipe network; the compressor drives the refrigerant to flow in the refrigerant pipe. When the refrigerant flows to the heat absorber, the refrigerant expands in the heat-absorbing pipe network to absorb the heat in the external air. When the refrigerant flows to the first heat exchanger And the second exchanger, the refrigerant is compressed in the heat release pipe network to release heat energy to heat the external air entering the drying device.

使用所述烘干装置对物料进行烘干的方法依次包括以下步骤；The method for drying materials using the drying device includes the following steps in sequence;

A1、在干料烘腔内放入含水量小的半干物料；在湿料烘腔内放入含水量大的湿物料；A1. Put semi-dry materials with low water content into the dry material drying chamber; put wet materials with high water content into the wet material drying chamber;

A2、鼓风设备启动把外部空气吸入烘干装置，外部空气经第一热交换器加热后，在鼓风设备风压作用下先经新风通道进入干料烘腔对半干物料进行烘干；A2. The blower equipment starts to suck the external air into the drying device. After the external air is heated by the first heat exchanger, under the wind pressure of the blower equipment, it first enters the dry material drying chamber through the fresh air channel to dry the semi-dry material;

A3、干料烘腔内的热空气经风孔进入湿料烘腔对湿物料进行烘干；A3. The hot air in the dry material drying chamber enters the wet material drying chamber through the air hole to dry the wet material;

A4、湿料烘腔内的热空气进入热回收气路；进入热回收气路的热空气一部分从排湿通道排出，另一部分进入回风通道；在风扇驱动下经回风通道返回至湿料烘腔内继续烘干湿物料；A4. The hot air in the wet material drying chamber enters the heat recovery air path; part of the hot air entering the heat recovery air path is discharged from the dehumidification channel, and the other part enters the return air channel; driven by the fan, it returns to the wet material through the return air channel Continue to dry wet materials in the drying chamber;

A5、当干料烘腔内的物料的干燥度达到预定要求后，从干料烘腔内取出物料；然后再把湿料烘腔内的物料转移至干料烘腔内。A5. When the dryness of the material in the dry material drying chamber reaches the predetermined requirement, take out the material from the dry material drying chamber; then transfer the material in the wet material drying chamber to the dry material drying chamber.

在步骤A2中，干料烘腔的温度范围为摄氏70度至80度之间；在步骤A3中，湿料烘腔的温度为摄氏50度。In step A2, the temperature range of the dry material drying chamber is between 70°C and 80°C; in step A3, the temperature of the wet material drying chamber is 50°C.

所述压缩机为电动压缩机；排湿通道处设有辅助进气口；干料烘腔与湿料烘腔之间以隔板9分隔；隔板处设有风孔5。The compressor is an electric compressor; an auxiliary air inlet is provided at the dehumidification passage; a partition 9 is used to separate the dry material drying chamber from the wet material drying chamber; an air hole 5 is provided at the partition.

两组烘干装置以共用热交换器方式组合成一烘干房，每烘干房包括两块热交换器、两组鼓风设备、两组新风口、两组排湿口、多个烘仓；烘仓包括干料烘腔、湿料烘腔、热回收装置和两台空气能热泵外机；所述干料烘腔位于下层而湿料烘腔位于上层；热交换器内置热回收气路；空气能热泵外机内置有压缩机；空气能热泵与热交换器相连。Two sets of drying devices are combined into a drying room by sharing heat exchangers, and each drying room includes two heat exchangers, two sets of blowing equipment, two sets of fresh air outlets, two sets of dehumidification outlets, and multiple drying chambers; The drying chamber includes a dry material drying chamber, a wet material drying chamber, a heat recovery device and two air source heat pump external units; the dry material drying chamber is located on the lower floor and the wet material drying chamber is located on the upper floor; the heat exchanger has a built-in heat recovery air circuit; The external unit of the air source heat pump has a built-in compressor; the air source heat pump is connected to the heat exchanger.

外部空气经热回收器加热后，在鼓风设备风压作用下，先经新风通道进入下层干料烘腔处的第一热交换器重新加热；再通过风机进入风道对半干物料进行层层烘干；然后一部分热空气经隔板的风孔进入湿料烘腔对湿物料进行烘干；另一部分热空气经下层烘腔的排气道输出至新风通道与新风混合，再次进入第一热交换器重新加热；从湿料烘腔输出的热空气一部分进烘仓上层回风通道和烘仓上层的辅助进气口的空气混合后经第二热交换器加热，以此循环；另一部分从湿料烘腔输出的热空气携带大量水气的热空气往排湿风道排出。After the external air is heated by the heat recovery device, under the action of the wind pressure of the blower equipment, it first enters the first heat exchanger at the dry material drying chamber of the lower layer through the fresh air channel to reheat; then enters the air channel through the fan to layer the semi-dry material Then part of the hot air enters the wet material drying chamber through the air hole of the partition to dry the wet material; the other part of the hot air is output to the fresh air channel through the exhaust channel of the lower drying chamber to mix with the fresh air, and then enters the first The heat exchanger reheats; part of the hot air output from the wet material drying chamber enters the upper return air channel of the drying chamber and the air mixed with the auxiliary air inlet on the upper layer of the drying chamber, and then is heated by the second heat exchanger to circulate; the other part The hot air output from the wet material drying chamber carries a large amount of moisture and is discharged to the dehumidification air duct.

所述物料为银耳，所述干料烘腔、湿料烘腔内均匀设置银耳烘架12以使银耳均匀放置；湿料烘腔侧壁处设有湿腔热回收通道与热回收气路相通，湿腔热回收通道使湿腔热空气中的一部分直排至热回收气路，用以强化湿腔热空气的热量回收；干料烘腔侧壁处设有干腔热回收通道与新风通道相通，干腔热回收通道使干腔热空气中的一部分直排至新风通道，用以强化对新吸入外部空气的加热。The material is tremella, and tremella drying racks 12 are evenly arranged in the dry material drying chamber and the wet material drying chamber to place the tremella evenly; the side wall of the wet material drying chamber is provided with a heat recovery channel in the wet chamber to communicate with the heat recovery gas path , the heat recovery channel of the wet chamber allows a part of the hot air in the wet chamber to be discharged directly to the heat recovery air path to strengthen the heat recovery of the hot air in the wet chamber; the side wall of the dry material drying chamber is equipped with a dry chamber heat recovery channel and a fresh air channel In contrast, the dry cavity heat recovery channel makes a part of the hot air in the dry cavity directly discharged to the fresh air channel to strengthen the heating of the newly inhaled external air.

干料烘腔内的半干银耳物料湿度范围为10-40%RH之间，湿料烘腔内的湿银耳物料湿度范围为40-95%RH之间。。The humidity range of the semi-dry white fungus material in the dry material drying chamber is between 10-40%RH, and the humidity range of the wet white fungus material in the wet material drying chamber is between 40-95%RH. .

本例中，排湿通道处设有排湿风机，烘仓18的顶端设有辅助新风口15与热回收气路相通。In this example, a dehumidification blower is provided at the dehumidification passage, and an auxiliary fresh air outlet 15 is provided on the top of the drying chamber 18 to communicate with the heat recovery air path.

Claims (10)

1. a kind of drying unit circulated based on air heat energy, can be dried with air heat energy to edible mushroom, it is characterised in that： The drying unit includes siccative and dries chamber, wet feed baking chamber, thermal source, recuperation of heat gas circuit and blast apparatus；The siccative dry chamber with it is wet Material dries chamber and communicated；Wet feed dries chamber and communicated with recuperation of heat gas circuit；The siccative dries chamber and dried for half dry material small to water content Dry chamber；It is the chamber that the wet stock big to water content is dried that the wet feed, which dries chamber,；After extraneous air is heated through thermal source, First enter siccative baking double of dry material of chamber through fresh air channel under blast apparatus Action of Wind pressure to be dried；Enter back into wet feed and dry chamber Wet stock is dried；The hot-air that wet feed is dried in chamber enters recuperation of heat gas circuit under Action of Wind pressure；The recuperation of heat gas circuit The return air channel that chamber is communicated is dried including the hydrofuge passage communicated with outside and with wet feed；Into the hot-air one of recuperation of heat gas circuit Divide from the discharge of hydrofuge passage, another part is back to wet feed through return air channel and dried in chamber.
2. a kind of drying unit circulated based on air heat energy according to claim 1, it is characterised in that：The thermal source bag Include first heat exchanger and second heat exchanger；The first heat exchanger is at fresh air channel, to entering drying unit Extraneous air is heated；The second heat exchanger is weighed at return air channel to the hot-air for entering return air channel Heating；Hot-air is pressurizeed provided with fan at the return air channel.
3. a kind of drying unit circulated based on air heat energy according to claim 2, it is characterised in that：First heat Be equipped with exchanger and the second exchanger with the intensive disk of heat-exchange tube into heat release pipe network；The first heat exchanger and second Refrigerant is provided with the heat-exchange tube of exchanger, first heat exchanger and the second exchanger are with refrigerant pipe and compressor, heat absorption Device is connected；The heat dump is located at outside the casing of drying unit, be provided with heat dump with the intensive disk of heat-exchange tube into endothermic tube Net；The driven compressor refrigerant is in refrigerant Bottomhole pressure, when refrigerant flow to heat dump, refrigerant heat absorption pipe network in expand with The heat in extraneous air is absorbed, when refrigerant flow to first heat exchanger and the second exchanger, refrigerant is pressed in heat release pipe network The extraneous air into drying unit is heated in contracting to discharge heat energy.
4. a kind of drying unit circulated based on air heat energy according to claim 3, it is characterised in that：Dried using described The method that equipment for drying is dried to material comprises the following steps successively；
A1, siccative dry chamber in be put into half small dry material of water content；Dried in wet feed in chamber and be put into the big wet stock of water content；
A2, blast apparatus start sucks drying unit extraneous air, after extraneous air is heated through first heat exchanger, in air blast First enter siccative baking double of dry material of chamber through fresh air channel under equipment Action of Wind pressure to be dried；
The hot-air that A3, siccative are dried in chamber enters wet feed baking chamber through air holes dries to wet stock；
The hot-air that A4, wet feed are dried in chamber enters recuperation of heat gas circuit；A hot-air part into recuperation of heat gas circuit is logical from hydrofuge Road is discharged, and another part enters return air channel；Under fans drive through return air channel be back to wet feed dry chamber in continue dry it is wet Material；
A5, after the aridity of material that siccative is dried in chamber reaches pre-provisioning request, dried from siccative in chamber and take out material；Then again The material that wet feed is dried in chamber is transferred to siccative and dried in chamber.
5. a kind of drying unit circulated based on air heat energy according to claim 4, it is characterised in that：In step A2 In, the temperature range that siccative dries chamber is Celsius between 70 degree to 80 degree；In step A3, the temperature that wet feed dries chamber is Celsius 50 Degree.
6. a kind of drying unit circulated based on air heat energy according to claim 3, it is characterised in that：The compressor For motor compressor；Auxilairy air intake is provided with hydrofuge passage；Siccative dries to be separated between chamber and wet feed baking chamber with dividing plate；At dividing plate Provided with air holes.
7. a kind of drying unit circulated based on air heat energy according to claim 6, it is characterised in that：Two groups of drying dresses Put and be combined into a baking room to share heat exchanger mode, include per baking room two pieces of heat exchangers, two groups of blast apparatuses, two groups Fresh wind port, two groups of moisture exhausting ports, multiple baking storehouses；Drying storehouse includes siccative baking chamber, wet feed baking chamber, heat reclamation device and two air energy thermals The outer machine of pump；The siccative dries chamber, and positioned at lower floor, wet feed dries chamber and is located at upper strata；Recuperation of heat gas circuit built in heat exchanger；Air energy thermal The outer machine of pump is built-in with compressor；Air energy heat pump is connected with heat exchanger.
8. a kind of drying unit circulated based on air heat energy according to claim 7, it is characterised in that：Extraneous air is passed through After heat regenerator heating, under blast apparatus Action of Wind pressure, the first heat first entered through fresh air channel at lower floor's siccative baking chamber is handed over Parallel operation is reheated；Dried layer by layer into double of air channel dry material by blower fan again；Then a part of hot-air is through dividing plate Air holes enter wet feed dry chamber wet stock is dried；The exhaust duct that another part hot-air dries chamber through lower floor is exported to fresh air Passage is mixed with fresh air, is again introduced into first heat exchanger and is reheated；A part of entering to dry of hot-air of chamber output is dried from wet feed Heat, circulated with this through second heat exchanger after the air mixing of storehouse upper strata return air channel and the auxilairy air intake on baking storehouse upper strata； The hot-air that the hot-air that another part dries chamber output from wet feed carries a large amount of aqueous vapors is discharged toward hydrofuge air channel.
9. a kind of drying unit circulated based on air heat energy according to claim 1, it is characterised in that：The material is White fungus, the siccative baking chamber, wet feed dry in chamber and are uniformly arranged white fungus shelf so that white fungus is uniformly placed；Wet feed dries chamber side-walls and set There is wet chamber recuperation of heat passage to be communicated with recuperation of heat gas circuit, wet chamber recuperation of heat passage makes a part of in line to hot in wet chamber hot-air Reclaim gas circuit, the heat recovery to strengthen wet chamber hot-air；Siccative dries chamber side-walls and is provided with dry chamber recuperation of heat passage and fresh air Passage is communicated, dry chamber recuperation of heat passage make it is a part of in line to fresh air channel in dry chamber hot-air, to strengthen to new suction The heating of extraneous air.
10. a kind of drying unit circulated based on air heat energy according to claim 9, it is characterised in that：Siccative dries chamber Half interior dry tremella humidity of materials scope is between 10-40%RH, the wet white fungus humidity of materials scope that wet feed dries in chamber is 40-95% Between RH.
CN201710339143.9A 2017-05-15 2017-05-15 A kind of drying unit circulated based on air heat energy Pending CN106949719A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112524906A (en) * 2020-10-10 2021-03-19 陈进车 Laver drying equipment
CN117268063A (en) * 2023-11-22 2023-12-22 福建春田科技有限公司 A high-efficiency and energy-saving drying equipment

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CN202562211U (en) * 2012-04-28 2012-11-28 芜湖华韵机械制造有限公司 Structure of drying room
CN206146123U (en) * 2016-09-20 2017-05-03 广东五星太阳能股份有限公司 A heat pump drying system for secondary recovery of heat energy from dehumidification
CN206847240U (en) * 2017-05-15 2018-01-05 古田易科烘干设备科技有限公司 A kind of drying unit based on air heat energy circulation

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Publication number Priority date Publication date Assignee Title
CN102022939A (en) * 2009-09-13 2011-04-20 袁泳 Heat pipe heat exchanger
AT509457A4 (en) * 2010-06-24 2011-09-15 Econ Gmbh DEVICE FOR WASTEWATERING GRANULES
CN202119206U (en) * 2011-06-22 2012-01-18 中国五冶集团有限公司 Ramsbottom carbon drying machine for carbide production
CN202562211U (en) * 2012-04-28 2012-11-28 芜湖华韵机械制造有限公司 Structure of drying room
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Publication number Priority date Publication date Assignee Title
CN112524906A (en) * 2020-10-10 2021-03-19 陈进车 Laver drying equipment
CN117268063A (en) * 2023-11-22 2023-12-22 福建春田科技有限公司 A high-efficiency and energy-saving drying equipment
CN117268063B (en) * 2023-11-22 2024-02-06 福建春田科技有限公司 Efficient energy-saving drying equipment

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