A heat pump dehumidification and drying equipment

Abstract

The present invention relates to the technical field of drying equipment, and discloses a heat pump dehumidification drying equipment, including a heating box and a master controller, a heat pump is fixedly installed at the bottom of the inner cavity of the heating box, an air guide pipe I is fixedly connected to the right end of the heat pump, a partition plate is fixedly installed inside the heating box and above the heat pump, and a solenoid valve I is fixedly installed in the middle of the partition plate. Through the arrangement of the piston cylinder and the heating resistance wire, the hot air entering the heating resistance wire is heated twice, the temperature of the gas required for drying is increased, and the drying efficiency is improved, and the heated hot air is transported outward at a certain frequency, so that in the drying room, the hot air can better take away moisture and accelerate the moisture removal efficiency, and through heating, the increase of the air pressure inside the piston cylinder is increased, thereby driving the piston column to move, and storing energy for the pressure spring, and cooperating with the subsequent deflation process to realize the piston movement of the piston column.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to heat pump dehumidification and drying equipment. 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 large amount of heat. Direct discharge will cause a huge waste of energy. However, due to the large amount of moisture contained in the exhaust gas, it is difficult to use this part of the heat. Most of the existing heat recovery devices preheat the exhaust gas to the intake air of the drying equipment through a heat exchanger to increase the initial temperature of the intake air and realize partial heat recovery. Therefore, a heat pump is used to dehumidify and heat the air through air energy to complete the drying of the material. However, the heat pump drying equipment currently used has the following shortcomings, as follows:

[0003] The heat pump currently used has a single heating method during operation. Although it can generate hot air to achieve the purpose of drying, the overall energy consumption of the drying equipment is large, and the speed of increasing the temperature of the equipment is also slow, which ultimately leads to general or even low drying efficiency. During the operation of the equipment, the utilization rate of waste heat energy is low, which is also one of the reasons for the high energy consumption. In addition, the hot air circulation inside the drying box needs to be assisted by an induced draft fan, which in turn increases energy consumption. Summary of the invention

[0004] The present invention provides a heat pump dehumidification and drying device, which has the advantages of fast drying rate and good energy-saving effect, and solves the problems in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a heat pump dehumidification and drying device, comprising a heating box and a master controller, a heat pump is fixedly installed at the bottom of the inner cavity of the heating box, an air guide pipe I is fixedly connected to the right end of the heat pump, a partition plate is fixedly installed inside the heating box and above the heat pump, an electromagnetic valve I is fixedly installed in the middle of the partition plate, a piston cylinder is fixedly installed on the partition plate and above the electromagnetic valve I, a piston column is movably sleeved on the piston cylinder, a heating resistance wire is fixedly installed inside the piston cylinder and below the piston column, the A pressure spring is fixedly connected to the upper surface of the piston cylinder, and the top of the pressure spring is fixedly connected to the inner cavity surface of the piston cylinder. A solenoid valve II is fixedly installed at four-fifths of the height of the right part of the piston cylinder. An air guide box is fixedly installed on the partition plate and on the right side of the heating box. A rotating shaft is movably sleeved in the inner cavity of the air guide box, and a turbine is fixedly installed on the top of the rotating shaft. Air guide blades are evenly fixedly installed on the rotating shaft and below the turbine. An air guide port is opened on the front of the air guide blades, and the solenoid valve II is connected to the top of the air guide box through a conduit.

[0006] Preferably, a heat exchanger is fixedly installed on the top of the heating box, and the heat exchanger consists of an evaporator and a condenser. The top of the piston cylinder is connected to the heat exchanger through a conduit. An air suction box is fixedly installed on the back of the inner cavity of the heating box, and the inner cavity of the air suction box is connected to the heat exchanger through a conduit. A solenoid valve III is fixedly installed on the left side of the top of the piston cylinder, and an air guide pipe II is fixedly connected to the solenoid valve III.

[0007] Preferably, a drying box is fixedly installed on the outside of the heating box, four storage boxes are evenly and movably connected to the drying box, storage mesh plates are evenly and fixedly installed on the inner sides of the storage boxes, and sealing strips are connected between the outer sides of two adjacent storage boxes by bolts.

[0008] Preferably, the drying box is in a circular shape, and its two ends are fixedly connected to the front and back of the heating box respectively, the inner cavity of the drying box is connected to the air guide port and the air suction box respectively, and a movable groove is opened inside the drying box and located in the middle of the two storage boxes, and a partition plate is movably connected in the movable groove.

[0009] Preferably, there are two heat pumps, which are symmetrically fixedly installed at the bottom of the inner cavity of the heating box, and the same end of the two heat pumps is connected through a conduit.

[0010] The present invention has the following beneficial effects:

[0011] 1. Through the setting of the piston cylinder and the heating resistor wire, the hot air entering the heating resistor wire is heated twice, the temperature of the gas required for drying is increased, and the drying efficiency is improved. In addition, the heated hot air is transported outward at a certain frequency, so that in the drying room, the hot air can better take away moisture and accelerate the moisture removal efficiency. By heating, the air pressure inside the piston cylinder is increased, which drives the piston column to move and stores energy for the pressure spring. In coordination with the subsequent deflation process, the piston movement of the piston column is realized, and the exhaust gas is transported, the hot air circulation inside the drying box is realized, and the consumption of external energy is reduced.

[0012] 2. By setting up the drying box and the partition board, the drying box surrounds the heating box, so that the hot air is input into the drying box from the air inlet at a frequency. After the items in the drying box are heated and dried, they enter the heat exchanger from the air suction box to realize circulation, and the waste heat of the gas is reused to reduce heat loss and improve energy utilization. In addition, if the items close to the air inlet are dried first, the storage box at this place is cut off by the partition board, and then the items on the storage mesh are replaced. At the same time, the heat loss inside the remaining drying boxes is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a heating box structure of the present invention;

[0014] Figure 2 It is a partial cross-sectional schematic diagram of the heating box structure of the present invention;

[0015] Figure 3 It is a front view half-section schematic diagram of the heating box of the present invention;

[0016] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 5 It is a schematic side view of the structure of the present invention;

[0018] Figure 6 It is a partial cross-sectional schematic diagram of the overall structure of the present invention;

[0019] Figure 7 It is a bottom-up half-section schematic diagram of the structure of the present invention.

[0020] In the figure: 1. Heating box; 2. Heat pump; 3. Air duct I; 4. Solenoid valve I; 5. Piston cylinder; 6. Piston column; 7. Heating resistor wire; 8. Compression spring; 9. Heat exchanger; 10. Solenoid valve II; 11. Air duct box; 12. Rotating shaft; 13. Turbine; 14. Air duct fan blades; 15. Air port; 16. Solenoid valve III; 17. Air duct II; 18. Air suction box; 19. Main controller; 20. Drying box; 21. Storage box; 22. Storage mesh plate; 23. Sealing strip; 24. Partition plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 3A heat pump dehumidification and drying device comprises a heating box 1 and a master controller 19, a heat pump 2 is fixedly installed at the bottom of the inner cavity of the heating box 1, an air guide pipe Ⅰ3 is fixedly connected to the right end of the heat pump 2, a partition plate is fixedly installed inside the heating box 1 and above the heat pump 2, a solenoid valve Ⅰ4 is fixedly installed in the middle of the partition plate, a piston cylinder 5 is fixedly installed on the partition plate and above the solenoid valve Ⅰ4, a piston cylinder 5 is movably sleeved with a piston column 6, a heating resistance wire 7 is fixedly installed inside the piston cylinder 5 and below the piston column 6, and a pressure spring 8 is fixedly connected to the upper surface of the piston cylinder 5 The top of the pressure spring 8 is fixedly connected to the inner cavity surface of the piston cylinder 5, and a solenoid valve II 10 is fixedly installed at the right four-fifths height of the piston cylinder 5. An air guide box 11 is fixedly installed on the partition plate and located on the right side of the heating box 1. The inner cavity of the air guide box 11 is movably sleeved with a rotating shaft 12, and a turbine 13 is fixedly installed on the top of the rotating shaft 12. Air guide blades 14 are evenly fixedly installed on the rotating shaft 12 and located below the turbine 13. An air guide port 15 is opened on the front of the air guide blades 14. The solenoid valve II 10 is connected to the top of the air guide box 11 through a conduit. The heat pump can heat the air through air energy. After heating to a certain degree, the hot air is then filled into the piston cylinder 5 through the air guide pipe Ⅰ3 and the electromagnetic valve Ⅰ4. After a certain amount of filling is stopped, the air inside the piston cylinder 5 is then heated through the heating resistor 7 to raise its temperature again. As the temperature rises, the pressure inside the piston cylinder 5 increases, thereby pressing the piston column 6, thereby compressing the pressing spring 8, causing the piston column 6 to rise, and then the piston column 6 rises to the top of the electromagnetic valve Ⅱ10. Then the electromagnetic valve Ⅱ10 opens, and the hot air inside the piston cylinder 5 is transmitted to the air guide box 11 through the conduit. After the hot air enters the air guide box 11, it blows the turbine 13 to rotate, and then the turbine 13 drives the air guide blades 14 to rotate through the rotating shaft 12, and the hot air in the air guide box 11 is transported outward through the air guide port 15, and then transported to the drying box for use. In this process, the air is heated multiple times by the heat pump 2 and the heating resistor 7, thereby increasing the temperature of the gas required for drying and improving the drying efficiency. In addition, the heated hot air is transported outward at a certain frequency, and then in the drying room, the hot air can better take away moisture, thereby accelerating the moisture removal efficiency.A heat exchanger 9 is fixedly installed on the top of the heating box 1. The heat exchanger 9 consists of an evaporator and a condenser. The top of the piston cylinder 5 is connected to the heat exchanger 9 through a conduit. An air suction box 18 is fixedly installed on the back of the inner cavity of the heating box 1. The inner cavity of the air suction box 18 is connected to the heat exchanger 9 through a conduit. A solenoid valve III 16 is fixedly installed on the left side of the top of the piston cylinder 5. The solenoid valve III 16 is fixedly connected to an air guide pipe II 17. When the hot air is released from the piston cylinder 5, the pressure spring 8 presses the piston column 6 to descend, thereby making the upper part of the piston cylinder 5 empty. The cavity generates negative pressure, thereby sucking the air in the heat exchanger 9, and the air in the heat exchanger 9 is sucked in through the suction box 18. The air entering the heat exchanger 9 is dehumidified and then transported to the piston cylinder 5. After the piston column 6 rises again, the solenoid valve III 16 is opened, and the dried gas is input into the heat pump 2 through the air guide pipe II 17 for heating, thereby reducing the interference of moisture in the outside air, improving the drying efficiency, and realizing the gas transportation through the piston cylinder 5 and the piston column 6, reducing the consumption of external energy;

[0023] See also Figure 4-Figure 7, a drying box 20 is fixedly installed on the outside of the heating box 1, and four storage boxes 21 are evenly and movably connected to the drying box 20. A storage mesh plate 22 is evenly fixedly installed on the inner side of the storage box 21. A sealing strip 23 is connected between the outer sides of two adjacent storage boxes 21 by bolts. The storage box 21 divides the internal area of ​​the drying box 20 into four parts. The items to be dried are placed on the storage mesh plate 22, and then sent to the inside of the drying box 20. The side of the drying box 20 is surrounded by the storage box 21, and a closed space is formed by the sealing strip 23 and the storage box 21. Then, the air guide box 11 sends hot air into the drying box 20 to dry the items on the storage mesh plate 22. The four storage boxes 21 can quickly replace the items to be dried, and replace the items that have been dried, thereby accelerating the drying work efficiency; the drying box 20 is annular, and the two ends are respectively fixedly connected to the front and back of the heating box 1, and the inner cavity of the drying box 20 is respectively connected to the air guide port 1 5 is connected to the air suction box 18, and a movable groove is opened inside the drying box 20 and located between the two storage boxes 21. A partition plate 24 is movably connected in the movable groove. Hot air is input into the drying box 20 from the air guide port 15 at a frequency to heat and dry the items in the drying box 20. Then the hot air gradually flows through the inner cavity of the drying box 20 and enters the heat exchanger 9 from the air suction box 18 to achieve circulation. Similarly, the waste heat of the gas inside the drying box 20 is utilized to reduce heat loss and improve energy utilization. In this process, if the items near the air guide port 15 are dried first, the storage box 21 here is cut off by the partition plate 24, and then the replacement of the items on the storage mesh plate 22 is completed. At the same time, the heat loss inside the remaining drying boxes 20 is avoided; there are two heat pumps 2, which are symmetrically fixedly installed at the bottom of the inner cavity of the heating box 1. The same end of the two heat pumps 2 is connected by a conduit, and the two heat pumps are used in series, thereby enhancing the heating efficiency of the hot air and improving the drying efficiency.

Claims

1. A heat pump dehumidification and drying device, comprising a heating box (1) and a master controller (19), characterized in that: A heat pump (2) is fixedly mounted on the bottom of the inner cavity of the heating box (1); the right end of the heat pump (2) is fixedly connected to an air guide pipe I (3); a partition plate is fixedly mounted inside the heating box (1) and above the heat pump (2); a solenoid valve I (4) is fixedly mounted in the middle of the partition plate; a piston cylinder (5) is fixedly mounted on the partition plate and above the solenoid valve I (4); a piston column (6) is movably sleeved on the piston cylinder (5); a heating resistor wire (7) is fixedly mounted inside the piston cylinder (5) and below the piston column (6); a pressure spring (8) is fixedly connected to the upper surface of the piston cylinder (5); the pressure spring (8) is fixedly mounted on the upper surface of the piston cylinder (5); and the pressure spring (8) is fixedly mounted on the upper surface of the piston cylinder (5). ) is fixedly connected to the inner cavity surface of the piston cylinder (5), a solenoid valve II (10) is fixedly installed at four-fifths of the height of the right part of the piston cylinder (5), an air guide box (11) is fixedly installed on the partition plate and located on the right side of the heating box (1), the inner cavity of the air guide box (11) is movably sleeved with a rotating shaft (12), a turbine (13) is fixedly installed on the top of the rotating shaft (12), and air guide blades (14) are evenly fixedly installed on the rotating shaft (12) and located below the turbine (13), and an air guide port (15) is opened on the front of the air guide blade (14), and the solenoid valve II (10) is connected to the top of the air guide box (11) through a conduit; A heat exchanger (9) is fixedly mounted on the top of the heating box (1), and the heat exchanger (9) is composed of an evaporator and a condenser. The top of the piston cylinder (5) is connected to the heat exchanger (9) via a conduit. An air suction box (18) is fixedly mounted on the back of the inner cavity of the heating box (1), and the inner cavity of the air suction box (18) is connected to the heat exchanger (9) via a conduit. A solenoid valve III (16) is fixedly mounted on the left side of the top of the piston cylinder (5), and an air guide pipe II (17) is fixedly connected to the solenoid valve III (16).

2. A heat pump dehumidification and drying equipment according to claim 1, characterized in that: A drying box (20) is fixedly mounted on the outside of the heating box (1), four storage boxes (21) are evenly and movably connected to the drying box (20), storage mesh plates (22) are evenly and fixedly mounted on the inside of the storage boxes (21), and sealing strips (23) are connected between the outsides of two adjacent storage boxes (21) by bolts.

3. A heat pump dehumidification and drying equipment according to claim 2, characterized in that: The drying box (20) is annular in shape, and its two ends are fixedly connected to the front and back sides of the heating box (1), respectively; the inner cavity of the drying box (20) is connected to the air guide port (15) and the air suction box (18), respectively; a movable groove is provided inside the drying box (20) and between the two storage boxes (21); a partition plate (24) is movably connected to the movable groove.

4. The heat pump dehumidification and drying equipment according to claim 1, characterized in that: There are two heat pumps (2), which are symmetrically fixedly mounted on the bottom of the inner cavity of the heating box (1), and the same end of the two heat pumps (2) is connected via a conduit.

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