Air energy heat pump tobacco house

Abstract

The utility model discloses an air energy heat pump tobacco house, including tobacco house shell and door body still includes air energy heat pump, hot -blast guide pipe, first wind scoop, first pipeline and second pipeline. The utility model has the advantages that: the hot air of air energy heat pump is transported to each layer hot -blast guide pipe through the heat preservation pipeline, and through the directional injection of the air outlet cover to the tobacco leaf, so that each layer tobacco leaf is evenly dried, and the tobacco quality is improved, and the energy consumption is saved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco curing barn technology, and in particular to an air-source heat pump tobacco curing barn. Background Technology

[0002] An air-source heat pump tobacco curing barn is a tobacco curing facility that uses air-source heat pump technology as a heat source. It absorbs heat energy from the ambient air and converts it into high-temperature heat energy through a heat pump cycle, achieving precise control of temperature and humidity within the barn. This allows for efficient and energy-saving tobacco drying while significantly reducing energy consumption and environmental pollution. However, existing tobacco curing barns typically use a one-end air intake drying method, which often results in the other end taking a certain amount of time to come into contact with the hot air. This method causes uneven drying within the drying chamber, affecting the curing effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an air-source heat pump tobacco curing room.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] An air-source heat pump tobacco curing barn includes a curing barn shell and a door, and further includes an air-source heat pump, hot air ducts, first air hoods, first pipes, and second pipes. The air-source heat pump is fixed to the front end of the curing barn shell. The hot air ducts are located in the drying chamber of the curing barn shell and are fixed to the tobacco curing rack. Three hot air ducts are arranged from top to bottom and are connected to the air-source heat pump through pipes. Several air outlets are symmetrically opened horizontally on the hot air ducts. Three first air hoods are provided on the top of the curing barn shell. The first air hoods are connected to the exhaust fan through pipes.

[0006] Furthermore, several second air hoods with openings angled towards the center of the drying chamber are symmetrically fixed to the two side walls of the tobacco curing chamber shell below the horizontal support frame of the lower layer of the tobacco curing rack; the several second air hoods are connected to the first pipe through the second pipe.

[0007] Furthermore, an air outlet cover is fixedly connected to the air outlet.

[0008] Furthermore, the air outlet hood is in the shape of an outwardly expanding trapezoidal platform.

[0009] Furthermore, the hot air duct is fixed at the middle position of each layer of tobacco curing rack space.

[0010] Furthermore, the total air outlet area of ​​the first air hood is greater than the total air inlet area of ​​the air outlet.

[0011] The beneficial effects of this utility model are:

[0012] The hot air generated by the air source heat pump is delivered to the hot air ducts of each layer through insulated pipes, and then sprayed directionally onto the tobacco leaves through the air outlet hood, so that the tobacco leaves in each layer are dried evenly. The hot and humid airflow is discharged through the first air outlet hood at the top under the suction of the exhaust fan, while the second air outlet hood guides the high humidity air in the middle and lower layers into the exhaust fan, ensuring the uniformity of drying of the tobacco leaves in the middle and lower layers, improving the quality of the tobacco leaves, and saving energy. Attached Figure Description

[0013] Figure 1 This is a side sectional view of the present invention;

[0014] Figure 2 This is a front sectional view of the present invention;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0017] In the picture,

[0018] 1-Tobacco curing barn shell, 2-Door, 3-Air source heat pump, 4-Hot air duct, 5-First exhaust hood, 6-First pipe, 7-Second exhaust hood, 8-Second pipe, 9-Exhaust fan;

[0019] 11-Drying chamber;

[0020] 111 - Tobacco roasting rack;

[0021] 41 - Air outlet, 42 - Air outlet cover. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Reference Figure 1-4As shown, an air-source heat pump tobacco curing barn includes a curing barn shell 1 and a door 2, as well as an air-source heat pump 3, a hot air duct 4, a first air duct 5, a first pipe 6, and a second pipe 8. The air-source heat pump 3 is fixedly connected to the front end of the tobacco curing barn shell 1. The hot air duct 4 is located in the drying chamber 11 of the tobacco curing barn shell 1 and is fixed to the tobacco curing rack 111. Three hot air ducts 4 are arranged from top to bottom and are connected to the air-source heat pump 3 through pipes. Several air outlets 41 are symmetrically opened horizontally on the hot air duct 4. Three first air ducts 5 are provided on the top of the tobacco curing barn shell 1. The first air ducts 5 are connected to the blower 9 through pipes.

[0024] It should be noted that the air-source heat pump 3 is fixed to the front outer wall of the tobacco curing barn shell 1 by a mounting bracket, and includes a compressor, evaporator, condenser, and expansion valve. A drying chamber 11 is formed inside the tobacco curing barn shell 1, and a tobacco curing rack 111 is installed inside the chamber. Hot air ducts 4 are vertically distributed and fixed to the side supports of the tobacco curing rack 111, preferably three ducts corresponding to the upper, middle, and lower layers of the tobacco curing rack. Each hot air duct 4 extends horizontally along its length and is fixed to the middle position of the longitudinal support beam of each layer of the tobacco curing rack 111 by stainless steel clamps to ensure uniform hot air diffusion. Multiple sets of air outlets 41 are symmetrically opened on both sides of the hot air duct wall, with a spacing of 150-200mm between adjacent air outlets 41. Three first draft hoods 5 are installed at the top of the tobacco curing barn shell 1, which facilitate the collection of hot air through the first pipe 6 and its discharge through the draft fan 9.

[0025] Specifically, several second air hoods 7 with openings angled towards the center of the drying chamber 1 are symmetrically fixed to the side walls of the tobacco curing chamber shell 1 below the horizontal support frame of the lower layer of the tobacco curing rack 111. These second air hoods 7 are connected to the first pipe 6 via a second pipe 8. The second air hoods 7 can absorb the lower layer of hot water vapor, preventing it from excessively contacting the upper tobacco leaves and further ensuring the uniformity of drying. The inner cavity of the second air hood 7 is equipped with guide ribs, which extend in a spiral shape, creating a swirling effect in the intake airflow and preventing moisture condensation inside the hood. Preferably, the height of the ribs is 1 / 5 of the inner diameter of the air hood, and the pitch is 1.2 times the inner diameter.

[0026] Specifically, an air outlet hood 42 is fixedly connected to the air outlet 41. The air outlet hood 42 is in the shape of an outwardly expanding trapezoid. The smaller diameter end of the air outlet hood 42 is connected to the air outlet 41, and the larger diameter end faces the tobacco loading area. Its sidewall forms a 15° expansion angle with the axis of the duct. This design can expand the coverage area of ​​hot air and avoid local dehydration caused by high-speed airflow directly blowing on the tobacco leaves. Preferably, the depth of the air outlet hood 42 is 20 mm, and the diameter of the larger diameter end is 15 mm.

[0027] Specifically, the hot air duct 4 is fixed in the middle of the space of each layer of tobacco curing rack 111.

[0028] Specifically, the total air outlet area of ​​the first air hood 5 is greater than the total air inlet area of ​​the air outlet 41. The total air inlet area of ​​the first air hood 5 is greater than the total area of ​​all air outlets 41 (e.g., a ratio of 1.2:1), ensuring that hot and humid air is quickly discharged.

[0029] The hot air duct 4 is fixed to the vertical support of the tobacco curing rack 111 by adjustable clamps, allowing for a height adjustment of ±50mm to accommodate different tobacco leaf bundling methods. The first air hood 5 is installed with quick-release clips for easy cleaning of internal dust. The hot air duct 4 can also be arranged with increasing diameter from top to bottom to further ensure the uniformity of tobacco leaf drying, depending on actual needs. It should be noted that the horizontal position of the air outlet hood 42 of each layer is lower than the horizontal position of the second air hood 7 set on both sides of the tobacco curing chamber shell 1.

[0030] The working principle of this utility model:

[0031] The hot air generated by the air source heat pump 3 is delivered to the hot air ducts 4 of each layer through insulated pipes, and then directionally sprayed onto the tobacco leaves through the exhaust hoods 42, ensuring that the tobacco leaves in each layer are dried evenly. The hot and humid airflow is drawn out by the exhaust fan 9 and discharged through the top first exhaust hood 5, while the second exhaust hood 7 guides the high-humidity air from the middle and lower layers into the exhaust fan 9, ensuring the uniformity of tobacco leaf drying, improving tobacco leaf quality, and saving energy consumption.

[0032] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An air-source heat pump tobacco curing barn, comprising a curing barn shell (1) and a door (2), characterized in that: It also includes an air source heat pump (3), a hot air duct (4), a first air hood (5), a first pipe (6), and a second pipe (8); the air source heat pump (3) is fixed to the front end of the tobacco curing chamber shell (1); the hot air duct (4) is located in the drying chamber (11) of the tobacco curing chamber shell (1) and is fixed on the tobacco curing rack (111); there are three hot air ducts (4) from top to bottom, and they are connected to the air source heat pump (3) through pipes; several air outlets (41) are horizontally symmetrically opened on the hot air duct (4); three first air hoods (5) are provided on the top of the tobacco chamber shell (1); the first air hoods (5) are connected to the blower (9) through pipes.

2. The air-source heat pump tobacco curing barn according to claim 1, characterized in that: The tobacco curing rack (111) has several second air hoods (7) with openings that are inclined toward the middle of the drying chamber (11) on both sides of the tobacco curing chamber shell (1) below the horizontal support frame of the lower layer; the several second air hoods (7) are connected to the first pipe (6) through the second pipe (8).

3. The air-source heat pump tobacco curing barn according to claim 1, characterized in that: An air outlet cover (42) is fixedly connected to the air outlet (41).

4. The air-source heat pump tobacco curing barn according to claim 3, characterized in that: The air hood (42) is in the shape of an outwardly expanding trapezoid.

5. The air-source heat pump tobacco curing barn according to claim 1, characterized in that: The hot air duct (4) is fixed in the middle of the space of each layer of tobacco curing rack (111).

6. The air-source heat pump tobacco curing barn according to claim 1, characterized in that: The total air outlet area of ​​the first air hood (5) is greater than the total air inlet area of ​​the air outlet (41).

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