Bidirectional airflow duct of closed heat pump curing barn

Abstract

The utility model discloses a closed heat pump curing barn two-way airflow air duct which comprises a curing barn shell, two rotating door plates are rotationally installed on the front surface and the rear surface of the curing barn shell respectively, two heat pumps are further embedded in the front surface and the rear surface of the curing barn shell, a partition plate is fixed between the two heat pumps, and the two rotating door plates are arranged on the partition plate. The two heat pumps and the partition plate divide the interior of the curing barn shell into two drying bins, the front surface and the rear surface of each heat pump are each provided with two heat pump exhaust inlets, and a plurality of air outlets are formed in one side of the rotating door plate. The drying bin has the advantages that the two rotationally symmetrical flow dividing guide plates and the two flow guiding plates are fixed to the two sides of the partition plate respectively, and part of hot air blown out by a heat pump is directly guided to the rear section of the other drying bin from the front section of one drying bin through the flow dividing guide plates, so that it is guaranteed that the drying speed of the front section of the drying bin is approximate to that of the rear section of the drying bin; and therefore, goods in the drying bin are uniformly dried, and the drying time is not too much different.

Description

Technical Field

[0001] This utility model relates to the field of heat pump oven technology, and in particular to a closed-loop heat pump oven bidirectional airflow duct. Background Technology

[0002] A heat pump drying room is a modern drying equipment that utilizes air-source heat pump technology. Through processes such as compression, condensation, evaporation, and throttling of the heat pump system, it converts low-grade heat energy in the air into high-temperature heat energy for drying materials. Heat pump drying rooms are environmentally friendly and energy-saving, and are widely used in various fields such as food processing, medicinal herb processing, wood processing, and primary processing of agricultural products.

[0003] However, in the existing technology, the airflow in the heat pump drying room flows from the front to the back. Therefore, the goods placed in the front of the heat pump drying room come into contact with the hot airflow first. Due to the obstruction of the airflow and heat absorption by the goods, the drying rate of the goods placed in the back of the heat pump drying room is often slower than that of the goods placed in the front. The drying rate of the goods is uneven, which increases the drying time of the goods and thus reduces the drying efficiency of the goods. Utility Model Content

[0004] The technical problem this invention aims to solve is that in a heat pump drying oven, the airflow flows from the front to the rear. Therefore, goods placed in the front section of the oven come into contact with the hot airflow first. Due to the obstruction of the airflow and heat absorption by the goods, the drying rate of goods placed in the rear section is often slower than that of goods placed in the front section. This results in uneven drying rates, increasing the drying time and reducing the drying efficiency of the goods.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A closed-loop heat pump drying oven with bidirectional airflow duct includes a drying oven shell. Two rotating door panels are rotatably mounted on the front and rear surfaces of the drying oven shell. Two heat pumps are also embedded in the front and rear surfaces of the drying oven shell. A partition is fixed between the two heat pumps. The two heat pumps and the partition divide the interior of the drying oven shell into two drying chambers. Two heat pump air inlets are provided on the front and rear surfaces of the heat pumps. Multiple air outlets are provided on one side of the rotating door panels.

[0007] Preferably, the heat pump draws in outside air through the heat pump air inlet facing the outer surface of the drying chamber shell, and the heat pump draws in hot air from inside the drying chamber through the heat pump air inlet facing the inner surface of the drying chamber.

[0008] Preferably, both ends of the partition are provided with through-flow channels, and both sides of the partition are fixed with diversion guide plates and flow guide plates.

[0009] Preferably, the two diversion guide plates are rotate symmetrically positioned, the two diversion plates are rotate symmetrically positioned, and the surface of the diversion guide plates is provided with a plurality of diversion grooves distributed vertically and horizontally.

[0010] Preferably, the diversion guide plate and the partition plate are tilted at an angle of 75 degrees, with the diversion guide plate tilted towards the heat pump direction, and the side of the diversion plate away from the partition plate tilted at an angle of 60 degrees towards the rear section of the drying chamber.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] Two rotationally symmetrical diversion guide plates and two diversion plates are fixed on both sides of the partition. The diversion guide plates are used to guide part of the hot air blown out by the heat pump directly from the front section of one drying chamber to the rear section of another drying chamber. This ensures that the drying speed of the front and rear sections of the drying chamber is similar, so that the goods inside the drying chamber are dried evenly and the drying time does not differ too much. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the internal structure of the oven shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model diversion guide plate;

[0016] Figure 4 This is a schematic diagram of the structure of the heat pump of this utility model.

[0017] In the diagram: 1. Drying oven shell; 2. Rotating door panel; 3. Heat pump; 4. Heat pump air intake; 5. Partition; 6. Drying chamber; 7. Diversion guide plate; 8. Diversion plate; 9. Diversion channel; 10. Diversion channel; 11. Air outlet. Detailed Implementation

[0018] 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.

[0019] like Figure 1 , Figure 2 and Figure 4As shown, a closed-loop heat pump drying oven with bidirectional airflow includes a drying oven shell 1. Two rotating door panels 2 are rotatably installed on the front and rear surfaces of the drying oven shell 1. Two heat pumps 3 are also embedded in the front and rear surfaces of the drying oven shell 1. A partition 5 is fixed between the two heat pumps 3. The two heat pumps 3 and the partition 5 divide the interior of the drying oven shell 1 into two drying chambers 6. Two heat pump air inlets 4 are provided on the front and rear surfaces of the heat pumps 3. Multiple air outlets 11 are provided on one side of the rotating door panels 2. The two heat pumps 3 absorb heat from the outside air and send it into the drying chamber 6 through the air outlets 11 to dry the goods placed inside the drying chamber 6.

[0020] Heat pump 3 draws in outside air through heat pump inlet 4 facing the outer surface of drying chamber shell 1, and heat pump 3 draws in hot air from inside drying chamber 6 through heat pump inlet 4 facing the inner surface of drying chamber 6. By drawing in hot air from inside the two drying chambers 6 through two heat pumps 3 and delivering it through air outlet 11, the hot air circulates inside the two drying chambers 6 and dries the goods, which is energy-saving and environmentally friendly.

[0021] As a preferred technical solution in this embodiment, such as Figure 2 and Figure 3 As shown, both ends of the partition 5 are provided with through-flow channels 9, and both sides of the partition 5 are fixed with diversion guide plates 7 and diversion plates 8. The positions of the two diversion guide plates 7 and the two diversion plates 8 are rotate symmetrical. The surface of the diversion guide plate 7 is provided with multiple vertically parallel diversion channels 10. The diversion guide plate 7 is used to intercept the hot airflow blowing out of the air outlet 11, so that part of the hot airflow enters another drying chamber 6 from the diversion channel 9 and dries the goods in the rear section of the drying chamber 6, thereby ensuring that the drying rate of the goods in the front and rear sections of the drying chamber 6 is similar.

[0022] The angle of inclination between the diversion guide plate 7 and the partition plate 5 is 75 degrees, and the diversion guide plate 7 is inclined towards the heat pump 3. The side of the diversion plate 8 away from the partition plate 5 is inclined at a 60-degree angle towards the rear section of the drying chamber 6. The inclined diversion guide plate 7 causes the hot air flow intercepted by the diversion guide plate 7 to flow towards the diversion groove 9 and the diversion plate 8. The diversion plate 8 ensures that the hot air flow passing through the diversion plate 8 flows to the rear section of the drying chamber 6 instead of the front section, ensuring that the hot air flow inside the drying chamber 6 always maintains a single flow direction.

[0023] Working principle: First, open the rotating door 2 and evenly place the shelves containing the goods to be dried inside the drying chamber 6. After the goods are placed, connect and start the power to the two heat pumps 3. The heat pumps 3 extract heat energy from the outside air through the heat pump intake 4 facing the outside of the drying chamber shell 1, and send the hot air containing heat into the drying chamber 6 from the air outlet 11. After entering the drying chamber 6, the hot air comes into contact with the diversion guide plate 7. Part of the hot air passes through the diversion groove 10 to dry the goods at the front of the drying chamber 6, and the remaining air is intercepted by the diversion guide plate 7. The hot air flows towards the diversion channel 9 and the diversion plate 8. The hot air passes through the diversion channel 9 and enters the interior of another drying chamber 6 along the inclined diversion plate 8. It then flows to the rear section of this drying chamber 6. The hot air flows inside the two drying chambers 6. When the hot air reaches the vicinity of the heat pump 3, the heat pump 3 draws the hot air from the rear section of the drying chamber 6 through the heat pump suction port 4 on the inside of the drying chamber 6 and returns it to the interior of the drying chamber 6 through the air outlet 11. This circulates and dries the goods, ensuring that the drying speed and time of the goods in the front and rear sections of the drying chamber 6 are similar, thus ensuring uniform drying of the goods and improving drying efficiency.

[0024] 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. A closed-loop heat pump oven bidirectional airflow duct, comprising an oven shell (1), characterized in that: The front and rear surfaces of the drying chamber shell (1) are each equipped with two rotating door panels (2). The front and rear surfaces of the drying chamber shell (1) are also inlaid with two heat pumps (3). A partition (5) is fixed between the two heat pumps (3). The two heat pumps (3) and the partition (5) divide the interior of the drying chamber shell (1) into two drying chambers (6). The front and rear surfaces of the heat pumps (3) are provided with two heat pump air inlets (4). The rotating door panel (2) is provided with multiple air outlets (11) on one side.

2. The closed-loop heat pump oven bidirectional airflow duct according to claim 1, characterized in that: The heat pump (3) draws in outside air through the heat pump air intake (4) on the outer surface of the drying chamber shell (1), and the heat pump (3) draws in hot air from inside the drying chamber (6) through the heat pump air intake (4) on the inner surface of the drying chamber (6).

3. The closed-loop heat pump oven bidirectional airflow duct according to claim 1, characterized in that: Both ends of the partition (5) are provided with through-flow channels (9), and both sides of the partition (5) are fixed with diversion guide plates (7) and diversion plates (8).

4. The closed-loop heat pump oven bidirectional airflow duct according to claim 3, characterized in that: The two diversion guide plates (7) are rotate symmetrical in position, and the two diversion plates (8) are rotate symmetrical in position. The surface of the diversion guide plate (7) is provided with a plurality of diversion grooves (10) that are distributed vertically and horizontally.

5. The closed-loop heat pump oven bidirectional airflow duct according to claim 4, characterized in that: The angle between the diversion guide plate (7) and the partition plate (5) is 75 degrees and the diversion guide plate (7) is inclined toward the heat pump (3). The side of the diversion plate (8) away from the partition plate (5) is inclined at a 60-degree angle toward the rear section of the drying chamber (6).

Images