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CN212260425U - An air source heat pump prickly ash dryer - Google Patents

An air source heat pump prickly ash dryer Download PDF

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Publication number
CN212260425U
CN212260425U CN202020802959.8U CN202020802959U CN212260425U CN 212260425 U CN212260425 U CN 212260425U CN 202020802959 U CN202020802959 U CN 202020802959U CN 212260425 U CN212260425 U CN 212260425U
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air
drying room
heat pump
chamber
drying
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陈子文
杨明金
李守太
杨玲
蒲应俊
吴达科
彭桂兰
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Southwest University
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Southwest University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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Abstract

本发明公开了一种空气源热泵花椒烘干机,属于农业机械领域。其主要特征在于:由回风系统、烘房、对开门、滚轮、匀风板、下匀风室、上匀风室、支撑条、热泵系统、控制面板、蒸发器、蒸发器风机、压缩机、冷凝器、翅片式辅热器等组成。烘房具有下匀风室、花椒堆放仓和上匀风室三部分。匀风板均布小孔和上匀风室的匀风板数量、位置可调保证了烘房花椒堆放仓内热空气的均匀性。热风循环具有开环、闭环和半闭环循环模式,可以保证高效烘干,高温湿空气全部余热回收且其中水分冷凝成液态水,对环境和设备无污染。本干燥设备便于拆卸和安装,能量利用率高,干燥过程可控,能够满足花椒高品质干燥需求。

Figure 202020802959

The invention discloses an air source heat pump prickly ash dryer, which belongs to the field of agricultural machinery. Its main features are: air return system, drying room, side door, roller, air distribution board, lower air distribution chamber, upper air distribution chamber, support bar, heat pump system, control panel, evaporator, evaporator fan, compressor , condenser, finned auxiliary heat exchanger, etc. The drying room has three parts: the lower air chamber, the prickly ash stacker and the upper air chamber. The uniform distribution of small holes in the air distribution plate and the number and position of the air distribution panels in the upper air distribution chamber can be adjusted to ensure the uniformity of the hot air in the prickly ash stacking warehouse in the drying room. The hot air circulation has open-loop, closed-loop and semi-closed-loop circulation modes, which can ensure high-efficiency drying. All the waste heat of the high-temperature humid air is recovered and the moisture in it is condensed into liquid water, which is non-polluting to the environment and equipment. The drying equipment is easy to disassemble and install, has high energy utilization rate and controllable drying process, and can meet the high-quality drying requirements of Chinese prickly ash.

Figure 202020802959

Description

Air source heat pump pepper dryer
Technical Field
The invention relates to drying equipment, in particular to an air source heat pump pepper dryer, and belongs to the field of agricultural machinery.
Background
The Chinese prickly ash is widely planted in China and the world as a seasoning and Chinese herbal medicine. Chinese prickly ash has wide planting area and various types, such as Dahongpao, Jiuyeyu green, big red pepper, small red pepper, bean pepper, white sand pepper and the like. The fresh pepper is difficult to store and transport, the quality guarantee time of the pepper is prolonged to avoid the pepper from rotting and mildewing, and the fresh pepper is dried.
The traditional pepper drying method is to intensively air-dry or dry in the shade in a cool and dry place, the required time is long, generally 6-10 days are needed, and the pepper is easy to mildew and lose in the rainy weather. At present, a brick baking room is mostly adopted for manual baking, professional pepper drying equipment is lacked, the baking process is difficult to control, and the pepper quality is difficult to guarantee.
The conventional drying method is that the air is heated by electricity or coal to reduce the relative humidity of the air, after the hot air absorbs the moisture evaporated by the dried materials, a small part of the air flows back in the drying chamber, and most of the air is directly pumped out by a fan and discharged into the environment, so that a large amount of heat energy is lost in the exhaust process, and the environment and equipment are polluted.
In order to solve the problems, the invention provides a new technical scheme.
Disclosure of Invention
The air source heat pump pepper dryer has the characteristics of small occupied area, controllable drying process, simple structure, low energy consumption and low cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an air source heat pump prickly ash drying-machine which characterized in that:
the air source heat pump pepper dryer comprises a return air system, a return air inlet, a drying room, split doors, idler wheels, a drying room air inlet, an air homogenizing plate, a drying room air outlet, a lower air homogenizing chamber, an upper air homogenizing chamber, a supporting bar, a heat pump system, a control panel, an evaporator fan, a return air valve, a compressor, a fresh air inlet, a condenser, a fin type auxiliary heater, a condenser fan, a heat pump air outlet and a moisture exhaust port.
The drying room is divided into a lower air homogenizing chamber, a pepper stacking bin and an upper air homogenizing chamber by the lower air homogenizing plate and the upper air homogenizing plate of the drying room, and the three parts have different flow field characteristics.
The support bars are vertically arranged in the drying room, and two support bars are arranged on the opposite wall surface.
The drying room air outlet is connected with the air return inlet, and the drying room air inlet is connected with the heat pump air outlet.
And rollers are arranged at the bottoms of the heat pump system and the drying room.
The compressor is respectively connected with the evaporator and the condenser.
The drying room comprises a split door, rollers, a drying room air inlet, an air homogenizing plate, a drying room air outlet, a lower air homogenizing chamber, an upper air homogenizing chamber and supporting bars.
The heat pump system is composed of a control panel, an evaporator fan, an air return valve, a compressor, a fresh air inlet, a condenser, a fin type auxiliary heater, a condenser fan, a heat pump air outlet and a moisture exhaust port.
Furthermore, a moisture exhaust port, an air return valve and a fresh air port of the air source heat pump pepper dryer are electrically controllable, and are specifically controlled to be opened and closed through a control panel, so that open-loop and closed-loop circulation control in the drying process is realized.
Furthermore, hot air in the drying room of the air source heat pump pepper dryer flows uniformly, and is specifically realized by adjusting the number and the position of the air distribution plates provided with uniformly distributed small holes.
Furthermore, the number and the position of the air homogenizing plates of the upper air homogenizing chamber can be adjusted, and the uniformity of a flow field in the drying room is promoted.
Furthermore, the peppers in the drying room of the air source heat pump pepper dryer are stacked uniformly, the specific implementation mode is that the upper air distribution plate in the drying room is taken down, and separated stacking space is formed by means of the supporting bars, so that ordered and uniform stacking of the peppers during loading is realized.
Further, when the air source heat pump pepper dryer is in closed loop circulation in the drying process, the air return valve is opened, and the moisture exhaust port and the fresh air port are closed. And when the circulation is performed in an open loop, the moisture exhaust port and the fresh air port are opened, and the return air valve is closed. When the moisture exhaust port, the fresh air port and the return air valve are partially opened, semi-closed loop circulation can be realized.
Description of the drawings:
fig. 1 is a main view of an air source heat pump pepper dryer of the present invention.
Fig. 2 is a side view of an air source heat pump pepper dryer of the present invention.
Fig. 3 is a top view of an air source heat pump pepper dryer of the present invention.
FIG. 4 is a sectional view of the A-A section of the air source heat pump pepper dryer of the present invention.
FIG. 5 is a sectional view of a section B-B of an air source heat pump pepper dryer of the present invention.
FIG. 6 is a top view of the air distribution plate of the present invention.
In the figure: 1. the drying room comprises a return air system, 11, a return air inlet, 2, a drying room, 21, a split door, 22, rollers, 23, a drying room air inlet, 24, an air homogenizing plate, 25, a drying room air outlet, 26, a lower air homogenizing chamber, 27, supporting strips, 28, an upper air homogenizing chamber, 3, a heat pump system, 31, a control panel, 32, an evaporator, 33, an evaporator fan, 34, a return air valve, 35, a compressor, 36, a fresh air inlet, 37, a condenser, 38, a fin type auxiliary heater, 39, a condenser fan, 310, a heat pump air outlet, 311 and a moisture exhaust port.
The specific implementation mode is as follows:
the structural characteristics of the air source heat pump pepper dryer of the present invention are further explained with reference to fig. 1-6. The invention relates to an air source heat pump pepper dryer, which consists of an air return system 1, an air return opening 11, a drying room 2, a split door 21, a roller 22, a drying room air inlet 23, an air uniformizing plate 24, a drying room air outlet 25, a lower air uniformizing chamber 26, a supporting bar 27, an upper air uniformizing chamber 28, a heat pump system 3, a control panel 31, an evaporator 32, an evaporator fan 33, an air return valve 34, a compressor 35, a fresh air opening 36, a condenser 37, a fin type auxiliary heater 38, a condenser fan 39, a heat pump air outlet 310 and a moisture exhaust opening 311; the small holes are uniformly distributed on the air uniformizing plate 24 and are arranged at the upper part and the lower part of the drying room 2, the drying room 2 is divided into a lower air uniformizing chamber 26, a pepper stacking bin and an upper air uniformizing chamber 28 by the air uniformizing plate 24 at the lower part and the air uniformizing plate 24 at the upper part of the drying room 2, and the three parts have different flow field characteristics; the support bars 27 are arranged in the drying room 2, and two support bars are arranged on each opposite wall surface; the drying room air outlet 25 is connected with the air return inlet 11, and the drying room air inlet 23 is connected with the heat pump air outlet 310; the bottom parts of the heat pump system 3 and the drying room 2 are both provided with rollers 22; the compressor 35 is connected to the evaporator 32 and the condenser 37, respectively.
The working principle of the air source heat pump pepper dryer of the invention is explained with reference to fig. 1-6. The hot air heated by the condenser 37 enters the lower uniform air chamber 26 of the drying room through the heat pump air outlet 310 and the drying room air inlet 23, and the fin-type auxiliary heater 38 can assist in heating the air if necessary. After the hot air passes through the upper air homogenizing plate 24 of the lower air homogenizing chamber 26, the hot air uniformly acts on the peppers to be dried, so that the moisture transfer of the peppers is promoted, and the hot air becomes damp and hot air. The damp and hot air enters the air return system through the air outlet 25 of the drying room. During closed loop circulation, the moisture exhaust port 311 and the fresh air port 36 are closed, the return air valve 34 is opened, and the damp and hot air is heated by the condenser 37 again and enters the drying room 2, so that reciprocating is carried out, and the moisture of the pepper is promoted to be fully exhausted. When the humidity of hot air in the drying room 2 reaches a certain threshold value, the open loop circulation is carried out. During the open-loop circulation, the moisture exhaust port 311 and the fresh air port 36 are opened, the return air valve 34 is closed, the ambient air enters the return air system through the fresh air port 36, then enters the uniform air chamber 26 below the drying room 2 after being heated by the condenser 37 and the fin type auxiliary heater 38, and the damp and hot air in the drying room 2 is completely exhausted through the moisture exhaust port 311 of the heat pump system 3 through the drying room air outlet 25. The moisture in the discharged damp and hot air is cooled and condensed into liquid water through the evaporator 32 to form dry air, so that the pollution of the damp and hot air to the environment and equipment is avoided, and meanwhile, the working medium in the waste heat heating heat pump system 3 promotes the evaporation of the working medium, so that the waste heat is fully recovered.
The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims (4)

1. The utility model provides an air source heat pump prickly ash drying-machine which characterized in that:
the air source heat pump pepper dryer comprises a return air system (1), a return air inlet (11), a drying room (2), a split door (21), rollers (22), a drying room air inlet (23), an air homogenizing plate (24), a drying room air outlet (25), a lower air homogenizing chamber (26), supporting strips (27), an upper air homogenizing chamber (28), a heat pump system (3), a control panel (31), an evaporator (32), an evaporator fan (33), a return air valve (34), a compressor (35), a fresh air inlet (36), a condenser (37), a fin type auxiliary heater (38), a condenser fan (39), a heat pump air outlet (310) and a moisture exhaust port (311);
the small holes are uniformly formed in the air homogenizing plate (24) and are arranged at the upper part and the lower part of the drying room (2), the drying room (2) is divided into a lower air homogenizing chamber (26), a pepper stacking bin and an upper air homogenizing chamber (28) by the air homogenizing plate (24) at the lower part and the air homogenizing plate (24) at the upper part of the drying room (2), and the three parts have different flow field characteristics;
the supporting bars (27) are vertically arranged in the drying room (2) and are respectively two relative to the wall surface;
the drying room air outlet (25) is connected with the air return inlet (11), and the drying room air inlet (23) is connected with the heat pump air outlet (310);
the bottom parts of the heat pump system (3) and the drying room (2) are both provided with rollers (22);
the compressor (35) is connected to the evaporator (32) and the condenser (37), respectively:
the drying room (2) consists of a split door (21), rollers (22), a drying room air inlet (23), an air homogenizing plate (24), a drying room air outlet (25), a lower air homogenizing chamber (26), support bars (27) and an upper air homogenizing chamber (28);
the heat pump system (3) is composed of a control panel (31), an evaporator (32), an evaporator fan (33), a return air valve (34), a compressor (35), a fresh air inlet (36), a condenser (37), a fin type auxiliary heater (38), a condenser fan (39), a heat pump air outlet (310) and a moisture exhaust port (311).
2. The air source heat pump pepper dryer according to claim 1, characterized in that: the moisture exhaust port (311), the return air valve (34) and the fresh air port (36) are electrically controllable; the opening and closing of the hot air circulation system are controlled through a control panel (31), so that closed-loop, open-loop and semi-closed-loop circulation modes of hot air circulation are realized, waste heat recovery of all high-temperature wet air and condensation of moisture in the high-temperature wet air into liquid water are realized, and the environment and equipment are not polluted.
3. The air source heat pump pepper dryer according to claim 1, characterized in that: the drying room (2) is provided with a lower air homogenizing chamber (26), a pepper stacking chamber and an upper air homogenizing chamber (28); the hot air in the pepper stacking bin of the drying room (2) flows uniformly, and is realized by adjusting the number and the position of the air homogenizing plates (24) with uniform small holes.
4. The air source heat pump pepper dryer according to claim 1, characterized in that: the peppers in the drying room (2) are stacked uniformly; the specific implementation mode is that the upper air uniform plate (24) in the drying room (2) is taken down, and a separated stacking space is formed by means of the supporting bars (27), so that ordered and uniform stacking of the peppers during loading is realized.
CN202020802959.8U 2020-05-08 2020-05-08 An air source heat pump prickly ash dryer Active CN212260425U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111466594A (en) * 2020-05-08 2020-07-31 西南大学 Air source heat pump pepper dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111466594A (en) * 2020-05-08 2020-07-31 西南大学 Air source heat pump pepper dryer

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