An intelligent heat pump fruit and vegetable drying machine

Abstract

The present invention relates to the technical field of fruit and vegetable drying equipment, and discloses an intelligent heat pump fruit and vegetable dryer, including a heating box, a servo motor and a master controller, wherein a heat exchanger is fixedly installed on the top of the inner cavity of the heating box, and the heat exchanger is composed of a condenser and an evaporator. Through the setting of the storage box, the fan I transmits the hot air upward into the storage box to heat the fruits and vegetables in the storage box. Driven by the chain, the storage box passes through the inner cavity of the heating box in turn, and then receives the heating of the hot air, so that the hot air is retained in the storage box, and the fruits and vegetables are fully heated. Similarly, when the storage box reaches the edge, it is turned over under the drive of the chain, and then the fruits and vegetables in the storage box are turned over, thereby enhancing the permeability of the hot air between the fruits and vegetables, increasing the uniformity of the drying of the fruits and vegetables, and improving the quality of the fruits and vegetables. At the same time, it is convenient for the hot air to carry moisture and quickly leave the fruits and vegetables, thereby accelerating the drying efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable drying equipment, and in particular to an intelligent heat pump fruit and vegetable drying machine. Background Art

[0002] The working principle of the existing drying equipment, whether it is large-scale industrial equipment or small-scale general equipment, is to use heat energy to heat the material to dry the moisture to achieve the purpose of drying. The existing heating methods are usually combustion heating and electric heating. The exhaust gas discharged by the drying equipment during the drying process contains a lot of heat. Direct discharge will cause a huge waste of energy. Therefore, the air is heated by using air energy through a heat pump, and the moisture in the exhaust gas is removed by a heat exchanger to utilize the waste heat in the exhaust gas. However, the current equipment for drying fruits and vegetables has the following shortcomings, as follows:

[0003] When drying fruits and vegetables, the fruits and vegetables are placed in a drying box, the air is heated by a heat pump, and then the hot air is passed into the drying box to heat the fruits and vegetables. During this process, the fruits and vegetables cannot be turned over, resulting in the fruits and vegetables on the outside being drier than those on the inside, resulting in uneven quality of the fruits and vegetables. In addition, the heat pump, as a single heating method, causes insufficient heating temperature, resulting in a long drying time. Summary of the invention

[0004] The present invention provides an intelligent heat pump fruit and vegetable drying machine, which has the advantages of high fruit and vegetable drying efficiency and high heat energy utilization rate, and solves the problems in the above-mentioned background technology.

[0005] The present invention provides the following technical scheme: an intelligent heat pump fruit and vegetable dryer, comprising a heating box, a servo motor and a master controller, a heat exchanger is fixedly installed on the top of the inner cavity of the heating box, the heat exchanger is composed of a condenser and an evaporator, a heat pump is symmetrically fixedly installed on the bottom of the inner cavity of the heating box, a fan I is fixedly installed in the inner cavity of the heating box and above the heat pump, the heat pump is connected with the fan I through a conduit, and a solenoid valve I is fixedly connected to the bottom surface of the heat exchanger, a drying box is symmetrically fixedly installed on the left and right sides of the heating box, a support rail is symmetrically fixedly installed in the middle of the front and rear sides of the inner cavity of the drying box, a connecting shaft is movably connected in the middle of the support rail, a driving gear is symmetrically movably sleeved on the front of the drying box, the servo motor is transmission-connected to the outer end of the driving gear through a belt rotating device, a chain is meshed and sleeved on the driving gear, a connecting ring is evenly fixedly installed on the chain, the connecting ring is fixedly sleeved with the connecting shaft, a storage box is fixedly connected between the connecting shafts, and a vent is provided on the widest surface of the storage box.

[0006] Furthermore, the support track includes an outer track and an inner track, the inner track is located on the inner side of the outer track, and the width of the outer track is greater than the width of the inner track.

[0007] Furthermore, the storage boxes are symmetrically arranged in the upper and lower parts, the width of the storage boxes is the same as the width of the inner cavity of the heating box, and the upper and lower storage boxes overlap when reaching the middle of the inner cavity of the heating box.

[0008] Furthermore, partition plates are fixedly installed on the upper and lower parts of the inner cavity of the drying box, a soft partition plate is fixedly installed on the partition plate and between two adjacent storage boxes, the soft partition plate is made of heat-resistant rubber, the front and back faces of the partition plate are movably connected to the drying box, drive boxes are fixedly installed on the partition plate at intervals in sequence from top to bottom, and a fan II is symmetrically and movably installed inside the drive box.

[0009] Furthermore, a material hole is opened on the side of the storage box, and a material blocking plate is movably installed in the material hole through a buckle, and a sealing cover is movably installed on the right side surface of the drying box located on the right side of the heating box.

[0010] Furthermore, the partition plate and the drying box form a heating chamber, and the heating chamber is located on the side of the partition plate away from the storage box. A solenoid valve II is fixedly installed on the drive box and located inside the heating chamber. A heating resistor plate is fixedly installed inside the heating chamber. An air duct is fixedly connected to the heat exchanger, and the other end of the air duct is connected to the heating chamber.

[0011] The present invention has the following beneficial effects:

[0012] 1. Through the setting of the storage box, the fan I transmits the hot air upward into the storage box to heat the fruits and vegetables in the storage box. Driven by the chain, the storage box passes through the inner cavity of the heating box in turn, and then receives the heating of the hot air, so that the hot air is retained in the storage box to fully heat the fruits and vegetables. Similarly, when the storage box reaches the edge, it is turned over by the chain, and then the fruits and vegetables in the storage box are turned over, thereby enhancing the permeability of the hot air between the fruits and vegetables, increasing the uniformity of the drying of the fruits and vegetables, and improving the quality of the fruits and vegetables. At the same time, it is convenient for the hot air to quickly carry moisture away from the fruits and vegetables, thereby accelerating the drying efficiency.

[0013] 2. By setting up the partition soft board and the drive box, the partition soft board and the storage box divide the space where the drying box is located to form a relatively independent space, thereby avoiding the loss of heat. At the same time, since the drive box is set up at intervals, when the storage box moves, the hot air inside is blown by the fan II and flows quickly in the storage box, thereby increasing the contact effect with fruits and vegetables, accelerating the discharge of moisture, and further improving the drying rate. In addition, by setting up the heating resistor plate, the exhaust gas discharged from the heat exchanger with a certain temperature is reheated to a certain temperature, thereby increasing the temperature of the hot air and enhancing the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a partial schematic diagram of the overall structure of the present invention;

[0016] Figure 3 It is a partial cross-sectional schematic diagram of the structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the distribution of the storage boxes of the structure of the present invention;

[0018] Figure 5 It is a front view half-section schematic diagram of the structure of the present invention;

[0019] Figure 6 A side half-section schematic diagram of the structure of the present invention;

[0020] Figure 7 It is a top view half-section schematic diagram of the structure of the present invention;

[0021] Figure 8 The structure of the present invention Figure 6 Schematic diagram of AA in the middle.

[0022] In the figure: 1. Heating box; 2. Heat pump; 3. Fan I; 4. Heat exchanger; 5. Solenoid valve I; 6. Drying box; 7. Support track; 71. Outer track; 72. Inner track; 8. Driving gear; 9. Chain; 10. Connecting ring; 11. Connecting shaft; 12. Storage box; 13. Partition soft board; 14. Dividing board; 15. Driving box; 16. Fan II; 17. Solenoid valve II; 18. Heating resistor board; 19. Air guide pipe; 20. Cover; 21. Master controller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4A smart heat pump fruit and vegetable drying machine includes a heating box 1, a servo motor and a master controller 21. A heat exchanger 4 is fixedly installed on the top of the inner cavity of the heating box 1. The heat exchanger 4 consists of a condenser and an evaporator. A heat pump 2 is symmetrically fixedly installed on the bottom of the inner cavity of the heating box 1. A fan Ⅰ3 is fixedly installed in the inner cavity of the heating box 1 and above the heat pump 2. The heat pump 2 is connected to the fan Ⅰ3 through a conduit. The bottom surface of the heat exchanger 4 is fixedly connected with a solenoid valve Ⅰ5. A drying box 6 is symmetrically fixedly installed on the left and right sides of the heating box 1. A support rail 7 is symmetrically fixedly installed in the middle of the front and rear sides of the inner cavity of the drying box 6. A connecting shaft 11 is movably connected to the middle of the support rail 7. The front of the drying box 6 is symmetrically movably sleeved with The servo motor is connected to the outer end of the driving gear 8 through a belt rotating device. A chain 9 is meshed and sleeved on the driving gear 8. A connecting ring 10 is evenly fixedly installed on the chain 9. The connecting ring 10 is fixedly sleeved with a connecting shaft 11. A storage box 12 is fixedly connected between the connecting shafts 11. A vent is provided on the widest surface of the storage box 12. Fruits and vegetables are placed in the storage box 12, and then the chain 9 is driven by the driving gear 8 to drive the storage box 12 to move. In this process, the heat pump 2 uses air energy to heat the dry air. After heating to a certain degree, it is transported to the fan Ⅰ3 through the duct. Then the fan Ⅰ3 transmits the hot air upward to make it enter the storage box 12. The fruits and vegetables in the storage box 12 are heated. Driven by the chain 9, the storage box 12 passes through the inner cavity of the heating box 1 in turn, and then receives the heating of the hot air. Similarly, when the storage box 12 reaches the edge, it is turned over by the chain 9, so that the fruits and vegetables in the storage box 12 are turned over, thereby enhancing the permeability of hot air between the fruits and vegetables, increasing the uniformity of drying the fruits and vegetables, and improving the quality of the fruits and vegetables. At the same time, it is convenient for the hot air to carry moisture away from the fruits and vegetables quickly, thereby accelerating the drying efficiency. The support track 7 includes an outer track 71 and an inner track 72. The inner track 72 is located on the inner side of the outer track 71. The width of the outer track 71 is greater than the width of the inner track 72. The outer track 71 and the inner track 72 are used to rotate the connecting shaft 11. The storage box 12 is limited in position, thereby preventing the storage boxes 12 moving in different directions from colliding with each other, thereby improving the safety of equipment operation; the storage boxes 12 are symmetrically arranged in the upper and lower parts, and the width of the storage boxes 12 is the same as the width of the inner cavity of the heating box 1. The upper and lower storage boxes 12 overlap when they reach the middle of the inner cavity of the heating box 1. The storage boxes 12 are controlled to move intermittently by the main controller 21, and after each movement, there are always two storage boxes 12 overlapping in the inner cavity of the heating box 1, and then the fan Ⅰ3 drives the previous exhaust gas upward when transporting hot air from bottom to top, so that the heat exchanger 4 absorbs the exhaust gas through the solenoid valve Ⅰ5 to remove moisture in the exhaust gas, and the storage box 12 is filled with hot air again;

[0025] See also Figure 5-Figure 8The inner cavity of the drying box 6 is respectively fixed with partition plates 14 on the upper and lower parts, and a partition soft plate 13 is fixedly installed on the partition plate 14 and between two adjacent storage boxes 12. The partition soft plate 13 is made of heat-resistant rubber. The front and rear faces of the partition plate 14 are movably connected to the drying box 6. The partition plate 14 is fixed with drive boxes 15 at intervals in sequence from top to bottom. The drive box 15 is symmetrically and movably installed with a fan II 16 inside. The space where the drying box 6 is located is divided by the partition soft plate 13 and the storage box 12 to form a relatively independent space, thereby To avoid the loss of hot air, at the same time, the fan II 16 rotates to drive the hot air to flow in a directional manner. Since the drive box 15 is arranged at intervals up and down, the hot air inside the storage box 12 is blown by the fan II 16 when the storage box 12 moves, and flows quickly in the storage box 12, thereby increasing the contact effect with the fruits and vegetables, accelerating the discharge of moisture, and further improving the drying rate; a material hole is opened on the side of the storage box 12, and a material blocking plate is movably installed in the material hole through a buckle, and a cover 20 is movably installed on the right side of the drying box 6 located on the right side of the heating box 1 When the storage box 12 moves to the rightmost part, the cover 20 and the material baffle are opened to discharge the dried fruits and vegetables from the material port, and new fruits and vegetables are added again, thereby forming a cycle, which can continuously perform the drying task, thereby accelerating the drying rate; the partition plate 14 and the drying box 6 form a heating chamber, and the heating chamber is located on the side of the partition plate 14 away from the storage box 12. An electromagnetic valve II 17 is fixedly installed on the drive box 15 and located inside the heating chamber. A heating resistor plate 18 is fixedly installed inside the heating chamber. An air guide pipe is fixedly connected to the heat exchanger 4. 19. The other end of the air guide pipe 19 is connected to the heating chamber. After the exhaust gas is absorbed and the moisture is removed in the heat exchanger 4, the dried gas is transmitted to the heating chamber and heated by the heating resistor plate 18. When a certain temperature is reached, it is transmitted to the drive box 15 through the electromagnetic valve II 17. Under the blowing of the fan II 16, it flows to the storage box 12 to heat the fruits and vegetables. On the one hand, the waste heat in the exhaust gas is utilized to enhance the energy utilization rate and reduce the drying cost. On the other hand, the temperature of the hot air is further increased to enhance the drying effect.

Claims

1. An intelligent heat pump fruit and vegetable drying machine, comprising a heating box (1), a servo motor and a master controller (21), a heat exchanger (4) being fixedly mounted on the top of the inner cavity of the heating box (1), the heat exchanger (4) being composed of a condenser and an evaporator, characterized in that: A heat pump (2) is symmetrically fixedly installed at the bottom of the inner cavity of the heating box (1); a fan I (3) is fixedly installed in the inner cavity of the heating box (1) and above the heat pump (2); the heat pump (2) is connected to the fan I (3) through a conduit; a solenoid valve I (5) is fixedly connected to the bottom surface of the heat exchanger (4); a drying box (6) is symmetrically fixedly installed on the left and right sides of the heating box (1); a support rail (7) is symmetrically fixedly installed in the middle of the front and rear sides of the inner cavity of the drying box (6); the middle movable portion of the support rail (7) is A connecting shaft (11) is clamped, a driving gear (8) is symmetrically and movably sleeved on the front of the drying box (6), the servo motor is transmission-connected to the outer end of the driving gear (8) through a belt rotating device, a chain (9) is meshingly sleeved on the driving gear (8), a connecting ring (10) is evenly fixedly installed on the chain (9), the connecting ring (10) is fixedly sleeved on the connecting shaft (11), a storage box (12) is fixedly connected between the connecting shafts (11), and a ventilation hole is opened on the widest surface of the storage box (12); The inner cavity of the drying box (6) is respectively fixedly mounted with partition plates (14) at the top and bottom, and a partition soft plate (13) is fixedly mounted on the partition plate (14) and located between two adjacent storage boxes (12). The partition soft plate (13) is made of heat-resistant rubber. The front and rear surfaces of the partition plate (14) are movably connected to the drying box (6). The partition plate (14) is fixedly mounted with drive boxes (15) at intervals at the top and bottom, and a fan II (16) is symmetrically and movably mounted inside the drive box (15). A material hole is opened on the side of the storage box (12), and the material hole is opened by a buckle. A material baffle is movably installed, and a cover (20) is movably installed on the right side surface of the drying box (6) located on the right side of the heating box (1); the partition plate (14) and the drying box (6) form a heating chamber, and the heating chamber is located on the side of the partition plate (14) away from the storage box (12); a solenoid valve II (17) is fixedly installed on the drive box (15) and located inside the heating chamber, and a heating resistor plate (18) is fixedly installed inside the heating chamber; an air guide pipe (19) is fixedly connected to the heat exchanger (4), and the other end of the air guide pipe (19) is respectively connected to the heating chamber.

2. The intelligent heat pump fruit and vegetable drying machine according to claim 1, characterized in that: The support track (7) comprises an outer track (71) and an inner track (72); the inner track (72) is located on the inner side of the outer track (71); the width of the outer track (71) is greater than the width of the inner track (72).

3. The intelligent heat pump fruit and vegetable drying machine according to claim 1 is characterized in that: The storage boxes (12) are arranged symmetrically in the upper and lower parts, the width of the storage boxes (12) is the same as the width of the inner cavity of the heating box (1), and the upper and lower storage boxes (12) overlap when they reach the middle of the inner cavity of the heating box (1).

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