A heat pump drying room with opening and closing integrated

Abstract

The utility model discloses an open and close integrated heat pump drying room, including the box, the front of box hinged has the sealed door, and the inner wall bottom of box is fixedly connected with the rack, and the top of box is fixedly connected with the hot -blast pump through the bolt, and the open and close integrated heat pump drying room still includes the adjusting mechanism, and the adjusting mechanism sets up at the inside top of box, and the buffer mechanism sets up below the hot -blast pump, and the circulation mechanism sets up at the lateral wall of box. The utility model relates to tobacco drying technical field, and this open and close integrated heat pump drying room, through the cooperation of first annular plate, first air deflector, second air deflector, motor, gear, gear ring and sliding block, has realized the flow velocity of hot -blast according to different stage adjustment, solved because tobacco leaf needs to experience yellowing period, color fixing period and dry tendon period three stages when drying, and the different wind speed used in three stages carries out drying to it, and the wind speed of traditional hot -blast pump is fixed, leads to unable to satisfy the tobacco leaf drying effect problem of different stages.

Description

Technical Field

[0001] This utility model relates to the field of tobacco drying technology, specifically to an integrated openable and closed heat pump drying room. Background Technology

[0002] Tobacco is an annual herbaceous plant belonging to the genus Nicotiana in the family Solanaceae. Its leaves are oblong-lanceolate, lanceolate, oblong, or ovate, with an acuminate apex and a gradually narrowed base that forms an auricle-like semi-amplexicaul shape. The petioles are inconspicuous or winged. When drying tobacco leaves, an integrated open-close heat pump drying room is required.

[0003] In traditional open-close integrated heat pump drying rooms, workers open the sealed door, hang the tobacco leaves on the rack, and then close the sealed door to dry them. However, when the hot air pump is working, the tobacco leaves need to go through three stages during the drying process: yellowing, color fixing, and dry ribs. Different air speeds are used for drying in these three stages. The air speed of the traditional hot air pump is fixed and cannot be adjusted, which makes it impossible to meet the drying effect of tobacco leaves at different stages. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an integrated openable and closed heat pump drying chamber, which solves the problem that traditional hot air pumps have a fixed air speed, which cannot meet the drying requirements of tobacco leaves at different stages because tobacco leaves need to go through three stages during drying: yellowing, color fixing, and dry ribs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated openable and closable heat pump drying chamber, comprising a housing, a sealed door hinged to the front of the housing, a shelf fixed to the bottom of the inner wall of the housing, and a hot air pump fixed to the top of the housing by bolts. The integrated openable and closable heat pump drying chamber also includes an adjustment mechanism located inside the upper part of the housing; a buffer mechanism located below the hot air pump; and a circulation mechanism located on the side wall of the housing. The adjustment mechanism adjusts the airflow speed of the hot air pump, the buffer mechanism buffers and reduces the pressure of the hot air, and the circulation mechanism circulates the hot air inside the housing.

[0006] Preferably, the adjusting mechanism includes a cylindrical body, which is bolted to the top of the inner wall of the housing; a first annular plate is fixed to the lower part of the inner wall of the cylindrical body; a first air guide plate is fixed to the inner wall of the cylindrical body and located above the first annular plate; a second air guide plate is disposed between the first annular plate and the first air guide plate; a slider is fixed to the bottom of the second air guide plate and its outer wall is slidably engaged with the surface of the first annular plate; a gear ring is fixed to the outer wall of the first air guide plate; a gear is meshed with the side wall of the gear ring and extends to the outside of the cylindrical body through an opening; a motor is fixed to the side wall of the cylindrical body through a motor sleeve and its output shaft is fixed to the inner wall of the gear; wherein, driven by the motor, the gear ring causes the first air guide plate to rotate, thereby adjusting the diameter between the through holes on the surfaces of the first air guide plate and the second air guide plate.

[0007] Preferably, the buffer mechanism includes a second annular plate, which is fixed to the upper part of the inner wall of the cylinder; a conical plate is fixed to the top of the second annular plate by bolts; a positioning block is fixed to the bottom of the conical plate and inserted into the surface of the second annular plate; a sealing ring is fixed to the outer wall of the second annular plate and the outer wall is attached to the lower part of the second annular plate; wherein, the positioning block is inserted into the second annular plate under the drive of the conical plate and then fixed to the second annular plate by bolts.

[0008] Preferably, the circulation mechanism includes a cover fixed to the lower inner wall of the box; a filter screen fixed to the inner wall of the cover; and a circulation pipe whose starting end is connected to the inner wall of the cover and whose ending end extends to the outer wall of the box and whose ending end is connected to the upper side wall of the box. The hot air inside the box is circulated through the cover and the circulation pipe, and the dust and impurities in the hot air are filtered through the filter screen.

[0009] Preferably, an air inlet pipe is connected to the bottom of the cylinder, and an air outlet pipe is connected to the bottom of the air inlet pipe. Beneficial effects

[0010] This utility model provides an integrated openable and closable heat pump drying chamber. It has the following advantages: This integrated openable and closable heat pump drying chamber, through the cooperation of a cylinder, a first annular plate, a first air guide plate, a second air guide plate, a motor, gears, a gear ring, and a slider, achieves adjustable hot air flow rate according to different stages. This solves the problem that traditional hot air pumps have a fixed air speed, which cannot meet the drying requirements of tobacco leaves at different stages, as tobacco leaves need to go through three stages during drying: yellowing, color fixing, and drying.

[0011] The combination of the second annular plate, conical plate, positioning block and sealing ring achieves buffering and pressure reduction of hot air, preventing the tobacco leaves at the top of the placement rack from being broken by the impact of hot air. It solves the problem that when hot air is ejected from the outlet of the hot air pump, the wind speed can reach 2.0-2.5m / s and the airflow is concentrated in a jet shape, which will have a strong impact on the tobacco leaves at the top of the placement rack. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the appearance of the present utility model; Figure 3 for Figure 1 A schematic diagram of the structure of the central motor, the first annular plate, and the conical plate; Figure 4 for Figure 3 A schematic diagram of the structure of the middle cylinder, the first air guide plate, and the first annular plate; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 1 A schematic diagram of the structure of the middle chamber, filter screen, and circulation pipe.

[0013] In the diagram: 1. Box body; 2. Placement rack; 3. Hot air pump; 4. Sealing door; 5. Adjustment mechanism; 51. Cylinder body; 52. First annular plate; 53. First air guide plate; 54. Second air guide plate; 55. Motor; 56. Gear; 57. Gear ring; 58. Slider; 6. Buffer mechanism; 61. Second annular plate; 62. Conical plate; 63. Positioning block; 64. Sealing ring; 7. Circulation mechanism; 71. Cover body; 72. Filter screen; 73. Circulation pipe; 8. Air inlet pipe; 9. Air outlet pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Because tobacco leaves need to go through three stages during drying—yellowing, color fixing, and rib drying—different air velocities are used for drying in each stage. Traditional hot air pumps have a fixed air velocity, which makes it impossible to meet the drying requirements of tobacco leaves at different stages.

[0016] In view of this, the present invention provides an integrated openable and closable heat pump drying chamber. Through the cooperation of the cylinder, the first annular plate, the first air guide plate, the second air guide plate, the motor, the gear, the gear ring and the slider, the flow rate of the hot air can be adjusted according to different stages. This solves the problem that since tobacco leaves need to go through three stages during drying, namely the yellowing stage, the color fixing stage and the dry rib stage, and different air speeds are used for drying in the three stages, the traditional hot air pump has a fixed air speed, which makes it impossible to meet the drying effect of tobacco leaves at different stages.

[0017] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0018] Example 1: By Figure 1-6 It is known that an integrated openable and closable heat pump drying room includes a housing 1, a sealing door 4 hinged to the front of the housing 1, a placement rack 2 fixed to the bottom of the inner wall of the housing 1, and a hot air pump 3 fixed to the top of the housing 1 by bolts. The integrated openable and closable heat pump drying room also includes an adjustment mechanism 5, a buffer mechanism 6, and a circulation mechanism 7. The adjustment mechanism 5 is located inside the upper part of the housing 1; the buffer mechanism 6 is located below the hot air pump 3; and the circulation mechanism 7 is located on the side wall of the housing 1. The adjustment mechanism 5 adjusts the airflow of the hot air pump 3, the buffer mechanism 6 buffers and reduces the pressure of the hot air, and the circulation mechanism 7 circulates the hot air inside the housing 1. In the specific implementation process, it is worth noting that the hot air pump 3 is model ZB19KQE-TFD-551. When drying tobacco leaves, the operator opens the sealing door 4, hangs the tobacco leaves on the rack 2, and then closes the sealing door 4. The operator then starts the hot air pump 3, which blows hot air into the interior of the chamber 1. The bottom of the chamber 1 is fixed with a pressure relief valve by a flange and bolts. The model of the pressure relief valve is selected according to the actual situation to meet the working conditions. When the pressure inside the chamber 1 is high, the pressure relief valve automatically opens to release the pressure. After the pressure is released, the pressure relief valve automatically closes. The hot air pressure inside the chamber 1 is released through the air outlet pipe. After that, the operator closes the valve, adjusts the air speed of the hot air pump 3 by the regulating mechanism 5, buffers and depressurizes the hot air by the buffering mechanism 6, and circulates the hot air inside the chamber 1 by the circulation mechanism 7.

[0019] Example 2: From Figure 1-6It is known that the adjusting mechanism 5 includes a cylinder 51, a first annular plate 52, a first air guide plate 53, a second air guide plate 54, a motor 55, a gear 56, a gear ring 57, and a slider 58. The cylinder 51 is fixed to the top of the inner wall of the housing 1 by bolts; the first annular plate 52 is fixed to the lower part of the inner wall of the cylinder 51; the first air guide plate 53 is fixed to the inner wall of the cylinder 51 and is located above the first annular plate 52; the second air guide plate 54 is disposed between the first annular plate 52 and the first air guide plate 53; and the slider 58 is fixed to the second air guide plate 54. The bottom of the first ring plate 52 is slidably engaged with the outer wall of the first ring plate 52; the gear ring 57 is fixedly connected to the outer wall of the first air guide plate 53; the gear 56 is meshed with the side wall of the gear ring 57 and extends to the outside of the cylinder 51 through the opening; the motor 55 is fixedly connected to the side wall of the cylinder 51 through the motor sleeve, and the output shaft is fixedly connected to the inner wall of the gear 56; wherein, under the drive of the motor 55, the gear 56 causes the gear ring 57 to drive the first air guide plate 53 to rotate, thereby adjusting the diameter between the through holes on the surfaces of the first air guide plate 53 and the second air guide plate 54; In the specific implementation process, it is worth noting that the motor 55 is a high-temperature servo motor with the model number MHMD082P1U, the slider 58 is made of high-carbon alloy steel, and has undergone quenching and tempering treatment. The first air guide plate 53 and the second air guide plate 54 have through holes on their surfaces, and the through holes on the first air guide plate 53 are smaller than the diameter of the through holes on the surface of the second air guide plate 54. The hot air pump 3 draws hot air into the cylinder 51 through the outlet end, and then into the housing 1 through the through holes on the surfaces of the first air guide plate 53 and the second air guide plate 54. When the wind speed needs to be adjusted, such as during the yellowing period, the operator connects the motor 55 to an external power source. The motor 55 drives the gear 56 to rotate, the gear 56 drives the gear ring 57 to rotate, the gear ring 57 drives the second air guide plate 54 to rotate, and the second air guide plate 54 drives the slider 58 to slide in the annular limiting groove on the surface of the first annular plate 52 to support the second air guide plate 54. Most of the through holes on the surfaces of the first air guide plate 53 and the second air guide plate 54 are misaligned, with only a small number of through holes overlapping. At this time, the effective flow area of ​​the hot air is minimized, thereby outputting low-speed hot air that meets the requirements of the yellowing period. During the color-fixing period, the overlap area of ​​the through holes on the surfaces of the first air guide plate 53 and the second air guide plate 54 increases. At this time, the resistance to the hot air decreases, and the flow velocity increases; During the dry period, most of the through holes on the surfaces of the first air guide plate 53 and the second air guide plate 54 are misaligned, reducing the effective flow area and enabling the hot air velocity to be adjusted according to different stages. Furthermore, the buffer mechanism 6 includes a second annular plate 61, a conical plate 62, a positioning block 63, and a sealing ring 64. The second annular plate 61 is fixed to the upper part of the inner wall of the cylinder 51; the conical plate 62 is fixed to the top of the second annular plate 61 by bolts; the positioning block 63 is fixed to the bottom of the conical plate 62 and inserted into the surface of the second annular plate 61; the sealing ring 64 is fixed to the outer wall of the second annular plate 61, and the outer wall is attached to the lower part of the second annular plate 61; wherein, the positioning block 63 is inserted into the second annular plate 61 under the drive of the conical plate 62, and then fixed to the second annular plate 61 by bolts. In the specific implementation process, it is worth noting that the conical plate 62 is made of 316L stainless steel and the sealing ring 64 is made of fluororubber. During assembly, the operator moves the conical plate 62, which drives the positioning block 63 to move. The positioning block 63 is inserted into the second annular plate 61 to position the conical plate 62. After completion, the operator rotates the bolts to fix the conical plate 62 onto the second annular plate 61. The sealing ring 64 increases the sealing between the conical plate 62 and the second annular plate 61. After the hot air comes out of the hot air pump 3, it enters the conical plate 62. The conical structure and holes of the conical plate 62 cause the flow cross section of the hot air to change gradually, and the hot air velocity and pressure gradually decrease, which plays a role in buffering and depressurizing the hot air, thus preventing the tobacco leaves at the top of the placement rack 2 from being broken by the impact of the hot air. Furthermore, the circulation mechanism 7 includes a cover 71, a filter screen 72, and a circulation pipe 73. The cover 71 is fixed to the lower inner wall of the housing 1; the filter screen 72 is fixed to the inner wall of the cover 71; the circulation pipe 73 starts at the inner wall of the cover 71 and extends to the outer wall of the housing 1, and ends at the upper side wall of the housing 1. The hot air inside the housing 1 is circulated through the cover 71 and the circulation pipe 73, and the dust and impurities in the hot air are filtered through the filter screen 72. In the specific implementation process, it is worth noting that the outer wall of the circulation pipe 73 is connected to the circulation pump through the flange and bolts. The model of the circulation pump is selected according to the actual situation, as long as it meets the working conditions. The filter screen 72 can be connected to the cover 71 through bolts. The operator can rotate the bolts to disassemble and install the filter screen 72 and clean it regularly. The filter screen 72 is made of 304 stainless steel wire mesh. During the drying process, the staff starts the circulation pump. The hot air in the chamber 1 is collected by the cover 71, then filtered by the filter screen 72 to remove dust and impurities, and then transported back to the top of the chamber 1 through the circulation pipe 73 to participate in the drying process again, so as to form a circulation flow of hot air, ensure uniform temperature and wind speed in the chamber 1, and improve drying efficiency and quality. Furthermore, an air inlet pipe 8 is connected to the lower part of the cylinder 51, and an air outlet pipe 9 is connected to the bottom of the air inlet pipe 8. In the specific implementation process, it is worth noting that after the hot air is buffered and regulated, it enters the air outlet pipe 9 through the air inlet pipe 8 and blows the air from the air outlet below the air outlet pipe 9 onto the tobacco leaves inside the box 1 to dry the tobacco leaves.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat pump drying room with integrated opening and closing mechanism, comprising a housing (1), characterized in that: The front of the box (1) is hinged with a sealing door (4), the bottom of the inner wall of the box (1) is fixed with a placement rack (2), and the top of the box (1) is fixed with a hot air pump (3) by bolts. The integrated openable and closed heat pump drying room also includes: An adjustment mechanism (5) is located inside the upper part of the housing (1); A buffer mechanism (6) is disposed below the hot air pump (3); A circulation mechanism (7) is provided on the side wall of the housing (1); The adjustment mechanism (5) controls the wind speed of the hot air pump (3), the buffer mechanism (6) buffers and reduces the pressure of the hot air, and the circulation mechanism (7) circulates the hot air inside the housing (1).

2. The integrated openable and closable heat pump drying room according to claim 1, characterized in that: The adjustment mechanism (5) includes: The cylindrical body (51) is fixed to the top of the inner wall of the box body (1) by bolts; The first annular plate (52) is fixed to the lower part of the inner wall of the cylinder (51); The first air guide plate (53) is fixed to the inner wall of the cylinder (51) and is located above the first annular plate (52); The second air guide plate (54) is disposed between the first annular plate (52) and the first air guide plate (53); The slider (58) is fixed to the bottom of the second air guide plate (54), and its outer wall is slidably engaged with the surface of the first annular plate (52); The gear ring (57) is fixed to the outer wall of the first air guide plate (53); Gear (56) meshes with the side wall of the gear ring (57) and extends through an opening to the outside of the cylinder (51); The motor (55) is fixed to the side wall of the cylinder (51) via the motor sleeve, and the output shaft is fixed to the inner wall of the gear (56); The gear (56), driven by the motor (55), causes the gear ring (57) to rotate the first air guide plate (53), thereby adjusting the diameter between the through holes on the surfaces of the first air guide plate (53) and the second air guide plate (54).

3. The integrated openable and closable heat pump drying room according to claim 2, characterized in that: The buffer mechanism (6) includes: The second annular plate (61) is fixed to the upper part of the inner wall of the cylinder (51); A conical plate (62) is bolted to the top of the second annular plate (61); The positioning block (63) is fixed to the bottom of the conical plate (62) and inserted into the surface of the second annular plate (61); A sealing ring (64) is fixed to the outer wall of the second annular plate (61), and the outer wall is attached to the lower part of the second annular plate (61); The positioning block (63) is inserted into the second annular plate (61) under the drive of the conical plate (62), and then fixed to the second annular plate (61) by bolts.

4. The integrated openable and closable heat pump drying room according to claim 1, characterized in that: The circulation mechanism (7) includes: The cover (71) is fixed to the lower inner wall of the box (1); A filter screen (72) is fixed to the inner wall of the cover (71); The circulation pipe (73) is connected at its beginning to the inner wall of the cover (71) and at its end to the outer wall of the box (1), and at its end to the upper side wall of the box (1). The hot air inside the box (1) is circulated through the cover (71) and the circulation pipe (73), and the dust and impurities in the hot air are filtered through the filter screen (72).

5. The integrated openable and closable heat pump drying room according to claim 2, characterized in that: The bottom of the cylinder (51) is connected to an air inlet pipe (8), and the bottom of the air inlet pipe (8) is connected to an air outlet pipe (9).

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