Air source heat pump dehumidifying and drying device and method

Abstract

The invention discloses an air source heat pump dehumidifying and drying device and method, and belongs to the technical field of drying devices.The air source heat pump dehumidifying and drying device comprises a drying box, a placing area and two drying areas are formed in the two sides of the interior of the drying box correspondingly, and a plurality of trigger adjusting assemblies are arranged in the drying areas; a heat pump assembly, a heat exchange assembly and a switching assembly are arranged in the containing area. According to the device, a worker manually operates a rotating handle to drive a screw rod to rotate in a rectangular base so as to adjust the height of a bottom plate, a spring is extruded through the bottom plate so as to adjust the use rigidity and the initial pre-tightening force of the spring, and the spring is made to meet the triggering requirements of materials with different weights; according to the device, different trigger threshold values can be set according to different material characteristics, and the latent heat recovery capacity of the evaporator is utilized to the maximum extent by matching the optimal humidity switching point of the materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of drying devices, and particularly relates to an air source heat pump dehumidifying and drying device and method. Background Art

[0002] An air source heat pump dehumidifying and drying device is a device that uses air source heat pump technology for dehumidification and drying. Its working principle is that through an air source heat pump system, the humid air in the room absorbs heat through an evaporator and condenses into water, and then the water is evaporated and discharged outdoors through a compressor, thereby achieving the effects of dehumidification and drying.

[0003] For example, in the Chinese patent document (CN114001537B) air energy heat pump agricultural product dryer, it includes: a housing with an opening at the top, and a drying box with an open top is provided on one side inside the housing; a heat exchange unit, which is arranged inside the housing and the heat exchange unit includes a condensing pipe, and the condensing pipe is inlaid inside the side wall of the drying box; a drying rotation unit, which includes a rotating shaft, a drying box, a mesh cover and a decelerating power assembly, through holes are evenly opened on the drying box, a mesh cover is clamped on the drying box, and the left and right ends of the drying box are respectively fixed with a rotating shaft, and the two rotating shafts are respectively rotatably connected to the two ends of the drying box, and the end of one of the rotating shafts is connected to the decelerating power assembly; a dehumidification unit, which is installed inside the housing and connected to the drying box, can dry in the way of a heat pump, can avoid too high drying temperature, can ensure uniform drying at the same time, and can timely discharge the moisture, can speed up the drying speed and ensure the drying quality. However, during the use of this device, the moist gas after drying is directly discharged, resulting in the loss of most of the heat in the gas, which affects the initial drying efficiency and overall energy utilization rate of the device. Therefore, improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to: in order to solve the problem that during the use of the existing technology, the moist gas after drying is directly discharged, resulting in the loss of most of the heat in the gas, which affects the initial drying efficiency and overall energy utilization rate of the device, and to propose an air source heat pump dehumidifying and drying device and method.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: An air source heat pump dehumidifying and drying device includes a drying box, in which a placement area and two drying areas are respectively opened on both sides inside the drying box, a plurality of trigger adjustment components are arranged inside the drying areas, and a heat pump component, a heat exchange component and a switching component are respectively arranged inside the placement area; The trigger adjustment assembly includes two rectangular seats, a bottom plate is slidably connected to the bottom side of the rectangular seat, a plurality of springs are fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the spring, trigger buttons are arranged on both sides of the top of the top plate, a sliding block is fixedly connected to the top of the top plate, the top of the sliding block extends to the outside of the rectangular seat and is fixedly connected to a placement seat, and the movement of the bottom plate adjusts the initial stiffness of the spring to be suitable for humidity triggering of different materials.

[0006] As a further description of the above technical solution: The two rectangular seats are fixedly connected to the inner wall of the drying box on opposite sides, the top plate and the sliding block are slidably connected inside the rectangular seat, an embedding groove is opened on the top side of the top plate, a trigger button is arranged inside the embedding groove, a screw is arranged at the bottom of the bottom plate, the screw is transmission-connected inside the rectangular seat, and one end of the screw extends away from the bottom plate to the outside of the rectangular seat and is fixedly connected to a rotating handle, and a sealing door is arranged on one side of the drying box.

[0007] As a further description of the above technical solution: The heat pump assembly includes an evaporator shell, one side of the evaporator shell is fixedly connected to a mounting box, the mounting box and the bottom of the evaporator shell are fixedly connected to the inner wall of the drying box, a plurality of straight evaporation pipes and curved evaporation pipes are arranged inside the evaporator shell, a connecting frame is arranged on the outer peripheral side of the curved evaporation pipe, the connecting frame is fixedly connected to the inner wall of the evaporator shell away from the side of the curved evaporation pipe, the straight evaporation pipe is rotatably connected between two relative curved evaporation pipes through a transfer sealing head, and the straight evaporation pipe and the curved evaporation pipe are distributed in an S shape, one end of the curved evaporation pipe extends to the outside of the evaporator shell and is connected to a compressor, the other end of the compressor is connected to a condensing unit through a delivery pipe, and the bottom of the condensing unit is fixedly connected to the top of the mounting box.

[0008] As a further description of the above technical solution: A heat exchange pipe is arranged inside the installation box, and the heat exchange pipe is arranged in a spiral shape. One end of the heat exchange pipe is connected to the condensing unit through a circulation pump, and the other end of the heat exchange pipe is connected to the bottom of the condensing unit. The condensing unit is connected to a connecting pipe at one end away from the conveying pipe, and the other end of the connecting pipe is provided with a conveying unit and an expansion valve, and the bottom end of the expansion valve is connected to the evaporation elbow through a connecting pipe. A fan is arranged on one side of the installation box, and the other side of the installation box is connected to the bottom of the drying area through an air supply pipe.

[0009] As a further description of the above technical solution: The heat exchange assembly includes a connecting box, one side of which is fixedly connected to the outer wall of the evaporator shell, a rectangular box is fixedly connected to the center of the connecting box, the rectangular box is connected to the connecting pipe through an inlet pipe, and the rectangular box is connected to the conveying unit through an outlet pipe.

[0010] As a further description of the above technical solution: An inclined blade is arranged inside the rectangular box, a rotating shaft is fixedly connected inside the inclined blade, the rotating shaft is rotatably connected inside the rectangular box, one end of the rotating shaft extends to the outer wall of the rectangular box and is fixedly connected with a reciprocating lead screw, a lead screw seat is drivingly connected to the outer peripheral side of the reciprocating lead screw, a first rack is fixedly connected to one side of the lead screw seat, the other end of the first rack extends into the evaporator housing, and the first rack is slidably connected inside the connection box, the rectangular box and the evaporator housing. A plurality of first gears are meshingly connected to one side of the first rack, and the first gears are fixedly connected to the outer peripheral side of the evaporation straight pipe.

[0011] As a further description of the above technical solution: The switching assembly includes a fixed box, one side of the fixed box is fixedly connected to the outer wall of the evaporator housing, and a first rectangular through hole is provided inside the fixed box and the evaporator housing. An air inlet unit is arranged on the side of the fixed box away from the evaporator housing, one side of the air inlet unit is fixedly connected to the outer wall of the drying box, and a second rectangular through hole is provided inside the drying box. The first rectangular through hole and the second rectangular through hole are on the same axis.

[0012] As a further description of the above technical solution: A rectangular frame is fixedly connected to the center inside the fixed box, the rectangular frame is arranged on the outer peripheral side of the first rectangular through hole, a plurality of heat exchange fins are arranged on the outer peripheral side of the rectangular frame, a flow guide plate is fixedly connected to the top of the rectangular frame, a recovery pipe is arranged above the flow guide plate, the recovery pipe is communicated with the top of the fixed box, and the top end of the recovery pipe is communicated with the top of the drying area.

[0013] As a further description of the above technical solution: A middle frame is fixedly connected to the center inside the rectangular frame, a second rack is arranged on one side inside the middle frame, the top end of the second rack is fixedly connected to an electric push rod, the electric push rod is arranged inside the fixed box, a plurality of second gears are meshingly connected to one side of the second rack, a rotating shaft is fixedly connected inside the second gears, both ends of the rotating shaft extend into the first rectangular through hole, and the rotating shaft is rotatably connected inside the rectangular frame and the middle frame. A closing blade is sleeved on the outer peripheral side of the rotating shaft, the closing blade is arranged inside the first rectangular through hole, a middle pipe is arranged on one side inside the rectangular frame, the middle pipe is communicated with the fixed box and the first through hole, and a pressure switch valve and a flow valve are arranged inside the middle pipe. An exhaust pipe is communicated with the bottom of the fixed box, and a switch valve is arranged on the exhaust pipe.

[0014] An air source heat pump dehumidification and drying method includes the following steps: S1. First, place the device in a suitable location. Then, place the material to be dried on the placement seat and close the sealing door of the drying box. At this time, the material to be dried on the placement seat will squeeze the spring through the sliding block and the top plate, causing the trigger button on the top plate to move away from the rectangular seat; S2. Let the staff manually operate the turning handle to drive the screw rod to rotate, and adjust the height of the bottom plate to adjust the working stiffness and initial pre-tightening force of the spring; S3. The evaporation straight pipe and the evaporation elbow will absorb heat from the external air inside the air inlet unit and transfer its heat to the refrigerant inside. The compressor compresses the low-temperature refrigerant in the evaporation straight pipe and the evaporation elbow into a high-temperature and high-pressure gas, and transports the high-temperature and high-pressure gas to the condensation unit. The circulation pump will cause the liquid inside the heat exchange pipe to exchange heat with the high-temperature and high-pressure gas. Then, the fan will transport the heat to the inside of the drying area through the air supply pipe to dry the material inside the placement seat; S4. At the same time, the low-temperature gas after the condensation unit will be transported to the inside of the evaporation elbow through the connecting pipe, the connecting box, the rectangular box conveying unit and the expansion valve. As the gas is transported, it will drive the inclined blades, the rotating shaft and the reciprocating lead screw to rotate, causing the lead screw seat to drive the first rack to move, so that the first gear drives the evaporation straight pipe to rotate; S5. The moist and hot gas dried in the drying area will be transported to the inside of the fixed box through the recovery pipe. The deflector diverts the gas to both sides inside the fixed box, exchanges heat with the heat exchange fins and is discharged through the exhaust pipe to heat the fresh air inside the rectangular frame and the first rectangular through hole; S6. As the material is dried, its weight will become smaller and smaller. At this time, the spring will drive the top plate, the sliding block and the placement seat to move upward. During the upward movement of the top plate, the trigger button will contact the inner wall of the rectangular seat, and the trigger button will transmit a signal to the external controller. The external controller makes the electric push rod drive the second rack to move downward, causing the second gear to drive the rotating shaft and the closing blade to rotate. The closing blade will close the first rectangular through hole. At this time, the switching valve on the exhaust pipe is in the closed state, and the heat gas of the recovery pipe is transported to the inside of the evaporator housing through the middle pipe, and the evaporator absorbs the latent heat in the wet air.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. In the present invention, through the provided trigger adjustment component, the staff manually operates the turning handle to drive the screw rod to rotate inside the rectangular seat to adjust the height of the bottom plate, and squeezes the spring through the bottom plate to adjust the working stiffness and initial pre-tightening force of the spring, so that the spring adapts to the trigger requirements of materials of different weights. This device can set different trigger thresholds according to different material characteristics, and maximize the latent heat recovery ability of the evaporator by matching the optimal humidity switching point of the material.

[0016] 2. In the present invention, through the provided switching component, the moist hot gas after drying in the drying area is transported to the inside of the fixed box through the recovery pipe. The deflector plate diverts the gas to both sides inside the fixed box, exchanges heat with the heat exchange fins, and is discharged through the exhaust pipe to heat the fresh air inside the rectangular frame and the first rectangular through-hole, improving the energy utilization rate during the use of the device. At the same time, the frosting effect of the moist gas on the evaporation straight pipe and the evaporation elbow is reduced. As the material is dried, the weight of the material will become smaller and smaller. At this time, the spring will drive the top plate, the sliding block, and the placement seat to move upward. During the upward movement of the top plate, the trigger button will contact the inner wall of the rectangular seat, and the trigger button will transmit a signal to the external controller. The external controller causes the electric push rod to drive the second rack to move downward, causing the second gear to drive the rotating shaft and the closing blade to rotate. The closing blade will close the first rectangular through-hole. At this time, the switch valve on the exhaust pipe is in the closed state, and the heat gas in the recovery pipe is transported to the inside of the evaporator housing through the middle pipe. The evaporator absorbs the latent heat in the moist air, reduces the dependence on external heating, and helps to reduce the influence of the external environment on the drying efficiency of the device. By adjusting the treatment method of the moist gas at different stages through the switching component, the environmental humidity can be quickly reduced, the problem of excessive heat load caused by the circulation of moist air can be avoided, the evaporation of moisture in the early stage can be accelerated, the overall drying time can be shortened, and in the later stage, the energy utilization rate and thermal stability inside the device are ensured.

[0017] 3. In the present invention, through the provided heat exchange component, the low-temperature gas after the condensing unit is transported to the inside of the evaporation elbow through the connecting pipe, the connecting box, the rectangular box conveying unit, and the expansion valve. As the gas is transported, it will drive the inclined blades, the rotating shaft, and the reciprocating lead screw to rotate, causing the lead screw seat to drive the first rack to move, so that the first gear drives the evaporation straight pipe to rotate, helping to increase the laminar flow turbulence intensity of the air layer around the evaporation straight pipe, increasing the convective heat transfer coefficient between the refrigerant and the air inside the evaporation straight pipe, enhancing the heat absorption effect of the refrigerant inside the evaporation straight pipe, and the centrifugal force generated by the rotation of the evaporation straight pipe may throw the condensed water or the initial frost layer away from the pipe surface, delaying the frosting speed and reducing the decrease in heat transfer efficiency caused by frosting, helping to improve the energy utilization rate and the overall drying effect of the device during the initial use process. Description of the Drawings

[0018] Figure 1 is the overall three-dimensional structure diagram of the present invention; Figure 2 is the internal three-dimensional structure diagram of the drying box in the present invention; Figure 3 is the overall three-dimensional structure diagram of the heat pump component in the present invention; Figure 4 is the internal three-dimensional structure diagram of the evaporator housing and the installation box in the present invention; Figure 5 In the present invention Figure 4 is a partial enlarged structural schematic diagram of part A in the present invention; Figure 6 is a partial three-dimensional structural schematic diagram of the heat exchange component in the present invention; Figure 7 is an internal three-dimensional structural schematic diagram of the fixed box in the present invention; Figure 8 In the present invention Figure 7 is a partial enlarged structural schematic diagram of part B in the present invention; Figure 9 is an overall three-dimensional structural schematic diagram of the trigger adjustment component in the present invention; Figure 10 is an internal three-dimensional structural schematic diagram of the rectangular seat in the present invention; Figure 11 In the present invention Figure 10 is a partial enlarged structural schematic diagram of part C in the present invention.

[0019] Legend: 1. Drying box; 2. Air inlet unit; 3. Heat pump component; 301. Evaporator housing; 302. Evaporation straight pipe; 303. Compressor; 304. Condensation unit; 305. Installation box; 306. Heat exchange pipe; 307. Fan; 308. Connecting pipe; 309. Evaporation elbow; 4. Heat exchange component; 401. Connecting box; 402. Rectangular box; 403. Inclined blades; 404. Rotating shaft; 405. Reciprocating lead screw; 406. Lead screw seat; 407. First rack; 408. First gear; 5. Switching component; 501. Fixed box; 502. Recovery pipe; 503. Rectangular frame; 504. Intermediate frame; 505. Deflector; 506. Electric push rod; 507. Second rack; 508. Second gear; 509. Rotating shaft; 510. Sealing blade; 6. Drying area; 7. Trigger adjustment component; 701. Rectangular seat; 702. Screw; 703. Rotating handle; 704. Bottom plate; 705. Spring; 706. Top plate; 707. Sliding block; 708. Placing seat. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-11The present invention provides a technical solution: an air source heat pump dehumidification and drying device, a drying box 1 has a placement area and two drying areas 6 on both sides thereof, a plurality of trigger adjustment components 7 are arranged inside the drying area 6, and a heat pump component 3, a heat exchange component 4 and a switching component 5 are arranged inside the placement area; The trigger adjustment component 7 includes two rectangular seats 701, the bottom side of the rectangular seat 701 is slidably connected to a bottom plate 704, the top of the bottom plate 704 is fixedly connected to a plurality of springs 705, the top of the spring 705 is fixedly connected to a top plate 706, trigger buttons are arranged on both sides of the top of the top plate 706, the top of the top plate 706 is fixedly connected to a sliding block 707, the top of the sliding block 707 extends to the outside of the rectangular seat 701 and is fixedly connected to a placement seat 708, the bottom plate 704 moves to adjust the initial stiffness of the spring 705, so as to be suitable for the humidity triggering of different materials, the opposite sides of the two rectangular seats 701 are fixedly connected to the inner wall of the drying box 1, and the top plates 706 and the sliding block 707 are both slidably connected inside the rectangular seat 701, an embedding groove is provided on the top side of the top plate 706, a trigger button is arranged inside the embedding groove, a screw rod 702 is arranged at the bottom of the bottom plate 704, the screw rod 702 is drivingly connected inside the rectangular seat 701, and the end of the screw rod 702 away from the bottom plate 704 extends to the outside of the rectangular seat 701 and is fixedly connected to a handle 703, a sealing door is arranged on one side of the drying box 1, the heat pump assembly 3 includes an evaporator shell 301, a mounting box 305 is fixedly connected to one side of the evaporator shell 301, and the mounting box 305 and the bottom of the evaporator shell 301 are both fixedly connected to the inner wall of the drying box 1, A plurality of evaporation straight pipes 302 and evaporation elbows 309 are arranged inside the evaporator shell 301. A connecting frame is arranged on the outer peripheral side of the evaporation elbow 309. The connecting frame is fixedly connected to the inner wall of the evaporator shell 301 on the side away from the evaporation elbow 309. The evaporation straight pipe 302 is rotatably connected between two opposite evaporation elbows 309 through a transfer sealing head. The evaporation straight pipe 302 and the evaporation elbow 309 are distributed in an S shape. One end of the evaporation elbow 309 extends to the outside of the evaporator shell 301 and is connected to the compressor 303. The other end of the compressor 303 is connected to the condensing unit 304 through a delivery pipeline. The bottom of the condensing unit 304 is connected to the installation box. 305 is fixedly connected at the top, a heat exchange pipe 306 is arranged inside the installation box 305, the heat exchange pipe 306 is arranged in a spiral shape, one end of the heat exchange pipe 306 is connected to the condensing unit 304 through a circulation pump, and the other end of the heat exchange pipe 306 is connected to the bottom of the condensing unit 304, the condensing unit 304 is connected to a connecting pipe 308 at one end away from the conveying pipe, and the other end of the connecting pipe 308 is provided with a conveying unit and an expansion valve, and the bottom end of the expansion valve is connected to the evaporation elbow 309 through a connecting pipe, a fan 307 is arranged on one side of the installation box 305, and the other side of the installation box 305 is connected to the bottom of the drying area 6 through an air supply pipe.

[0022] Specific implementation manner: First, place the device in a suitable place, then place the material to be dried on the placement seat 708, and close the sealing door on the drying box 1. At this time, the material to be dried on the placement seat 708 will squeeze the spring 705 through the sliding block 707 and the top plate 706, causing the trigger button on the top plate 706 to move away from the rectangular seat 701. The evaporation straight pipe 302 and the evaporation elbow 309 will absorb heat from the external air inside the air inlet unit 2 and transfer its heat to the refrigerant inside. The compressor 303 compresses the low-temperature refrigerant in the evaporation straight pipe 302 and the evaporation elbow 309 into a high-temperature and high-pressure gas, and transports the high-temperature and high-pressure gas to the condensation unit 304. The circulation pump will cause the liquid inside the heat exchange pipe 306 to exchange heat with the high-temperature and high-pressure gas, improving the thermal stability of the device during use. The fan 307 will transport the heat to the drying area 6 through the air supply pipe to dry the material inside the placement seat 708. The operator manually operates the rotating handle 703 to drive the screw rod 702 to rotate inside the rectangular seat 701 to adjust the height of the bottom plate 704. By squeezing the spring 705 through the bottom plate 704, the use stiffness and initial pre-tightening force of the spring 705 are adjusted to make the spring 705 adapt to the triggering requirements of materials with different weights. This device can set different trigger thresholds according to different material characteristics, and maximize the latent heat recovery ability of the evaporator by matching the optimal humidity switching point of the material.

[0023] The heat exchange assembly 4 includes a connection box 401. One side of the connection box 401 is fixedly connected to the outer wall of the evaporator housing 301. A rectangular box 402 is fixedly connected to the center inside the connection box 401. The rectangular box 402 is connected to the connection pipe 308 through a water inlet pipe and is connected to the conveying unit through a water outlet pipe. An inclined blade 403 is arranged inside the rectangular box 402. A rotating shaft 404 is fixedly connected inside the inclined blade 403. The rotating shaft 404 is rotatably connected inside the rectangular box 402. One end of the rotating shaft 404 extends to the outer wall of the rectangular box 402 and is fixedly connected to a reciprocating lead screw 405. A lead screw seat 406 is drivingly connected to the outer peripheral side of the reciprocating lead screw 405. One side of the lead screw seat 406 is fixedly connected to a first rack 407. The other end of the first rack 407 extends into the evaporator housing 301, and the first rack 407 is slidably connected inside the connection box 401, the rectangular box 402, and the evaporator housing 301. A plurality of first gears 408 are meshingly connected to one side of the first rack 407. The first gears 408 are fixedly connected to the outer peripheral side of the evaporation straight pipe 302.

[0024] Specific implementation method: The low-temperature gas after the condensing unit 304 will be transported to the inside of the evaporation elbow 309 through the connecting pipe 308, the connecting box 401, the rectangular box 402 delivery unit and the expansion valve. As the gas is transported, it will drive the oblique blades 403, the rotating shaft 404 and the reciprocating screw 405 to rotate. The linkage effect between the reciprocating screw 405 and the screw seat 406 is used to transmit power to the screw seat 406, so that the screw seat 406 drives the first rack 407 to move. Then, the linkage effect between the first rack 407 and the first gear 408 is used to transmit power to the first gear 408, so that the first gear 408 drives the evaporation straight pipe 302 The evaporating straight pipe 302 rotates to help increase the turbulence intensity of the laminar air flow around the evaporating straight pipe 302, thereby increasing the convective heat transfer coefficient between the refrigerant and the air inside the evaporating straight pipe 302, and enhancing the heat absorption effect of the refrigerant inside the evaporating straight pipe 302. The centrifugal force generated by the rotation of the evaporating straight pipe 302 may throw condensed water or the initial frost layer off the pipe surface, slowing down the frosting speed and reducing the decrease in heat transfer efficiency caused by frosting, thereby helping to improve the energy utilization rate and the overall drying effect of the device during initial use. The outer peripheral side of the reciprocating screw 405 is provided with two thread grooves with the same pitch and opposite rotation directions, and the screw seat 406 is connected to the reciprocating screw 405 through a slider placed in the spiral groove.

[0025] The switching component 5 includes a fixed box 501. One side of the fixed box 501 is fixedly connected to the outer wall of the evaporator housing 301. A first rectangular through-hole is provided inside the fixed box 501 and the evaporator housing 301. On the side of the fixed box 501 away from the evaporator housing 301, there is an air inlet unit 2. One side of the air inlet unit 2 is fixedly connected to the outer wall of the drying box 1. A second rectangular through-hole is provided inside the drying box 1. The first rectangular through-hole and the second rectangular through-hole are on the same axis. At the center of the fixed box 501, there is a rectangular frame 503 fixedly connected. The rectangular frame 503 is arranged on the outer peripheral side of the first rectangular through-hole. A plurality of heat exchange fins are arranged on the outer peripheral side of the rectangular frame 503. At the top of the rectangular frame 503, there is a deflector 505 fixedly connected. Above the deflector 505, there is a recovery pipe 502. The recovery pipe 502 is communicated with the top of the fixed box 501, and the top of the recovery pipe 502 is communicated with the top of the drying area 6. At the center of the rectangular frame 503, there is an intermediate frame 504 fixedly connected. On one side inside the intermediate frame 504, there is a second rack 507. The top of the second rack 507 is fixedly connected to an electric push rod 506. The electric push rod 506 is arranged inside the fixed box 501. One side of the second rack 507 is meshed with a plurality of second gears 508. Inside the second gear 508, there is a rotating shaft 509 fixedly connected. Both ends of the rotating shaft 509 extend into the first rectangular through-hole, and the rotating shaft 509 is rotatably connected inside the rectangular frame 503 and the intermediate frame 504. A closing blade 510 is sleeved on the outer peripheral side of the rotating shaft 509. The closing blade 510 is arranged inside the first rectangular through-hole. On one side inside the rectangular frame 503, there is an intermediate pipe. The intermediate pipe is communicated with the fixed box 501 and the first through-hole, and a pressure switch valve and a flow valve are arranged inside the intermediate pipe. The bottom of the fixed box 501 is communicated with an exhaust pipe, and a switch valve is arranged on the exhaust pipe.

[0026] Detailed implementation method: The moist and hot gas after drying in the drying area 6 will be transported to the inside of the fixed box 501 through the recovery pipe 502. The guide plate 505 diverts the gas to both sides inside the fixed box 501, exchanges heat with the heat exchange fins, and then is discharged through the exhaust pipe to heat the fresh air inside the rectangular frame 503 and the first rectangular through-hole, improving the energy utilization rate of the device during use. While improving the energy utilization rate of the device, it reduces the frosting effect of the moist gas on the evaporation straight pipe 302 and the evaporation elbow 309, thereby preventing the influence on the heat absorption efficiency of the evaporator and further ensuring the use effect of the device. As the material is dried, its weight will become smaller and smaller. At this time, the spring 705 will drive the top plate 706, the sliding block 707 and the placement seat 708 to move upward. During the upward movement of the top plate 706, the trigger button will contact the inner wall of the rectangular seat 701, and the trigger button will transmit a signal to the external controller. The external controller causes the electric push rod 506 to drive the second rack 507 to move downward. Using the linkage effect between the second rack 507 and the second gear 508, the power is transmitted to the second gear 508, causing the second gear 508 to drive the rotating shaft 509 and the closing blade 510 to rotate. The closing blade 510 will close the first rectangular through-hole. At this time, the switch valve on the exhaust pipe is in the closed state, and the heat gas in the recovery pipe 502 is transported to the inside of the evaporator housing 301 through the middle pipe. The evaporator absorbs the latent heat in the wet air, reducing the dependence on external heating and assisting in reducing the influence of the external environment on the drying efficiency of the device. By switching the components to adjust the treatment method of the moist gas at different stages, the environmental humidity can be quickly reduced, avoiding the problem of excessive heat load caused by the circulation of wet air, accelerating the evaporation of moisture in the early stage, shortening the overall drying time, and ensuring the energy utilization rate and thermal stability inside the device in the later stage. A humidity sensor can be set on the recovery pipe 502 according to actual needs to further increase the device's control over humidity discharge.

[0027] An air source heat pump dehumidification and drying method includes the following steps: S1. First, place the device in a suitable place, then place the material to be dried on the placement seat 708, and close the sealing door of the drying box 1. At this time, the material to be dried on the placement seat 708 will squeeze the spring 705 through the sliding block 707 and the top plate 706, causing the trigger button on the top plate 706 to move away from the rectangular seat 701; S2. Let the staff manually operate the rotating handle 703 to drive the screw rod 702 to rotate, adjust the height of the bottom plate 704, and adjust the use stiffness and initial pre-tightening force of the spring 705; S3. The evaporation straight pipe 302 and the evaporation elbow 309 will absorb heat from the external air inside the air inlet unit 2 and transfer its heat to the refrigerant inside. The compressor 303 compresses the low-temperature refrigerant in the evaporation straight pipe 302 and the evaporation elbow 309 into a high-temperature and high-pressure gas, and transports the high-temperature and high-pressure gas to the condensation unit 304. The circulation pump will cause the liquid inside the heat exchange pipe 306 to exchange heat with the high-temperature and high-pressure gas. Then, the fan 307 will transport the heat through the air supply pipe to the inside of the drying area 6 to dry the materials placed inside the placement seat 708; S4. At the same time, the low-temperature gas after the condensation unit 304 will be transported to the inside of the evaporation elbow 309 through the connecting pipe 308, the connecting box 401, the rectangular box 402 conveying unit and the expansion valve. As the gas is transported, it will drive the inclined blade 403, the rotating shaft 404 and the reciprocating lead screw 405 to rotate, causing the lead screw seat 406 to drive the first rack 407 to move, so that the first gear 408 drives the evaporation straight pipe 302 to rotate; S5. The moist and hot gas after drying in the drying area 6 will be transported to the inside of the fixed box 501 through the recovery pipe 502. The guide plate 505 diverts the gas to both sides inside the fixed box 501, exchanges heat with the heat exchange fins and is discharged through the exhaust pipe to heat the fresh air inside the rectangular frame 503 and the first rectangular through hole; S6. As the materials are dried, their weight will become smaller and smaller. At this time, the spring 705 will drive the top plate 706, the sliding block 707 and the placement seat 708 to move upward. During the upward movement of the top plate 706, the trigger button will contact the inner wall of the rectangular seat 701, and the trigger button will transmit a signal to the external controller. The external controller causes the electric push rod 506 to drive the second rack 507 to move downward, so that the second gear 508 drives the rotating shaft 509 and the closing blade 510 to rotate, and the closing blade 510 will close the first rectangular through hole. At this time, the switching valve on the exhaust pipe is in the closed state, and the heat gas of the recovery pipe 502 is transported from the middle pipe to the inside of the evaporator housing 301, and the evaporator absorbs the latent heat in the moist air.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An air source heat pump dehumidification and drying device, comprising a drying box (1), characterized in that: The drying box (1) has a placement area and two drying areas (6) on both sides thereof, a plurality of trigger adjustment components (7) are arranged inside the drying area (6), and a heat pump component (3), a heat exchange component (4) and a switching component (5) are arranged inside the placement area; The trigger adjustment component (7) comprises two rectangular seats (701), the bottom side of the rectangular seat (701) is slidably connected to a bottom plate (704), the top of the bottom plate (704) is fixedly connected to a plurality of springs (705), the top of the springs (705) is fixedly connected to a top plate (706), trigger buttons are arranged on both sides of the top of the top plate (706), the top of the top plate (706) is fixedly connected to a sliding block (707), the top of the sliding block (707) extends to the outside of the rectangular seat (701) and is fixedly connected to a placement seat (708), and the bottom plate (704) moves to adjust the initial stiffness of the spring (705) so as to be suitable for humidity triggering of different materials.

2. The air source heat pump dehumidification and drying device according to claim 1, wherein: The two rectangular seats (701) are fixedly connected to the inner wall of the drying box (1) at opposite sides, the top plate (706) and the sliding block (707) are slidably connected inside the rectangular seat (701), an embedding groove is provided on the top side of the top plate (706), and a trigger button is arranged inside the embedding groove, a screw rod (702) is arranged at the bottom of the bottom plate (704), the screw rod (702) is transmission-connected inside the rectangular seat (701), and one end of the screw rod (702) away from the bottom plate (704) extends to the outside of the rectangular seat (701) and is fixedly connected to a rotating handle (703), and a sealing door is arranged on one side of the drying box (1).

3. An air source heat pump dehumidification and drying device according to claim 1, characterized in that: The heat pump assembly (3) comprises an evaporator shell (301), a mounting box (305) being fixedly connected to one side of the evaporator shell (301), the mounting box (305) and the bottom of the evaporator shell (301) being fixedly connected to the inner wall of the drying box (1), a plurality of evaporation straight pipes (302) and evaporation elbows (309) being arranged inside the evaporator shell (301), a connecting frame being arranged on the outer peripheral side of the evaporation elbow (309), and the connecting frame being connected to the evaporator shell (301) on a side away from the evaporation elbow (309). The inner wall is fixedly connected, the evaporation straight pipe (302) is rotatably connected between two opposite evaporation elbows (309) through an adapter sealing head, and the evaporation straight pipe (302) and the evaporation elbow (309) are distributed in an S shape, one end of the evaporation elbow (309) extends to the outside of the evaporator shell (301) and is connected to a compressor (303), and the other end of the compressor (303) is connected to a condensing unit (304) through a delivery pipeline, and the bottom of the condensing unit (304) is fixedly connected to the top of the installation box (305).

4. The air source heat pump dehumidification and drying device according to claim 3, characterized in that: Inside the installation box (305), there is a heat exchange pipe (306) arranged in a spiral shape. One end of the heat exchange pipe (306) is connected to the condensation unit (304) through a circulation pump, and the other end of the heat exchange pipe (306) is connected to the bottom of the condensation unit (304). One end of the condensation unit (304) away from the conveying pipe is connected to a connecting pipe (308). The other end of the connecting pipe (308) is provided with a conveying unit and an expansion valve. The bottom end of the expansion valve is connected to the evaporation elbow (309) through a connecting pipe. On one side inside the installation box (305), there is a fan (307). On the other side inside the installation box (305), it is connected to the bottom of the drying area (6) through an air supply pipe.

5. An air source heat pump dehumidification and drying device according to claim 4, characterized in that: The heat exchange component (4) includes a connecting box (401). One side of the connecting box (401) is fixedly connected to the outer wall of the evaporator housing (301). At the center inside the connecting box (401), there is a rectangular box (402) fixedly connected. The rectangular box (402) is connected to the connecting pipe (308) through a water inlet pipe, and the rectangular box (402) is connected to the conveying unit through a water outlet pipe.

6. The air source heat pump dehumidification and drying device according to claim 5, characterized in that: Inside the rectangular box (402), there are inclined blades (403). Inside the inclined blades (403), there is a rotating shaft (404) fixedly connected. The rotating shaft (404) is rotatably connected inside the rectangular box (402). One end of the rotating shaft (404) extends to the outer wall of the rectangular box (402) and is fixedly connected to a reciprocating lead screw (405). On the outer peripheral side of the reciprocating lead screw (405), there is a lead screw seat (406) in transmission connection. On one side of the lead screw seat (406), there is a first rack (407) fixedly connected. The other end of the first rack (407) extends into the evaporator housing (301), and the first rack (407) is slidably connected inside the connecting box (401), the rectangular box (402), and the evaporator housing (301). On one side of the first rack (407), there are a plurality of first gears (408) meshed. The first gears (408) are fixedly connected to the outer peripheral side of the evaporation straight pipe (302).

7. An air source heat pump dehumidification and drying device according to claim 6, characterized in that: The switching component (5) includes a fixed box (501). One side of the fixed box (501) is fixedly connected to the outer wall of the evaporator housing (301). Inside the fixed box (501) and the evaporator housing (301), there is a first rectangular through hole. On the side of the fixed box (501) away from the evaporator housing (301), there is an air inlet unit (2). One side of the air inlet unit (2) is fixedly connected to the outer wall of the drying box (1). Inside the drying box (1), there is a second rectangular through hole. The first rectangular through hole and the second rectangular through hole are on the same axis.

8. An air source heat pump dehumidification and drying device according to claim 7, characterized in that: A rectangular frame (503) is fixedly connected to the center inside the fixed box (501). The rectangular frame (503) is arranged on the outer periphery of the first rectangular through-hole. A plurality of heat exchange fins are arranged on the outer periphery of the rectangular frame (503). A flow guide plate (505) is fixedly connected to the top of the rectangular frame (503). A recovery pipe (502) is arranged above the flow guide plate (505). The recovery pipe (502) is communicated with the top of the fixed box (501), and the top end of the recovery pipe (502) is communicated with the top of the drying area (6).

9. The air source heat pump dehumidification and drying device according to claim 8, characterized in that: An intermediate frame (504) is fixedly connected to the center inside the rectangular frame (503). A second rack (507) is arranged on one side inside the intermediate frame (504). An electric push rod (506) is fixedly connected to the top end of the second rack (507). The electric push rod (506) is arranged inside the fixed box (501). A plurality of second gears (508) are meshed and connected to one side of the second rack (507). A rotating shaft (509) is fixedly connected inside the second gear (508). Both ends of the rotating shaft (509) extend into the first rectangular through-hole, and the rotating shaft (509) is rotatably connected inside the rectangular frame (503) and the intermediate frame (504). A sealing blade (510) is sleeved on the outer periphery of the rotating shaft (509). The sealing blade (510) is arranged inside the first rectangular through-hole. An intermediate pipeline is arranged on one side inside the rectangular frame (503). The intermediate pipeline is communicated with the fixed box (501) and the first through-hole, and a pressure switch valve and a flow valve are arranged inside the intermediate pipeline. An exhaust pipe is communicated with the bottom of the fixed box (501), and a switch valve is arranged on the exhaust pipe.

10. An air source heat pump dehumidification and drying method, characterized in that, Applied to an air source heat pump dehumidification and drying device according to any one of claims 1-9, specifically including the following steps: S1. First, place the device in a suitable place, then place the material to be dried on the placing seat (708), and close the sealing door on the drying box (1). At this time, the material to be dried on the placing seat (708) will squeeze the spring (705) through the sliding block (707) and the top plate (706), so that the trigger button on the top plate (706) moves away from the rectangular seat (701). S2. Make the staff manually operate the rotating handle (703) to drive the screw rod (702) to rotate, and adjust the height of the bottom plate (704) to adjust the use stiffness and initial pre-tightening force of the spring (705). S3. The evaporation straight pipe (302) and the evaporation elbow (309) will absorb heat from the external air inside the air inlet unit (2) and transfer its heat to the refrigerant inside. The compressor (303) compresses the low-temperature refrigerant in the evaporation straight pipe (302) and the evaporation elbow (309) into a high-temperature and high-pressure gas, and transports the high-temperature and high-pressure gas to the condensation unit (304). The circulation pump will make the liquid inside the heat exchange pipe (306) exchange heat with the high-temperature and high-pressure gas. Then the fan (307) will transfer the heat to the inside of the drying area (6) through the air supply pipe to dry the material inside the placing seat (708). S4. Meanwhile, the low-temperature gas after the condensing unit (304) is transported to the inside of the evaporation elbow pipe (309) through the connecting pipe (308), the connecting box (401), the rectangular box (402) conveying unit and the expansion valve. As the gas is transported, it will drive the inclined blades (403), the rotating shaft (404) and the reciprocating lead screw (405) to rotate, causing the lead screw seat (406) to drive the first rack (407) to move, so that the first gear (408) drives the evaporation straight pipe (302) to rotate; S5. The moist hot gas dried in the drying area (6) is transported to the inside of the fixed box (501) through the recovery pipe (502). The guide plate (505) diverts the gas to both sides inside the fixed box (501), and after exchanging heat with the heat exchange fins, it is discharged through the exhaust pipe to heat the fresh air inside the rectangular frame (503) and the first rectangular through hole; S6. As the material is dried, the weight of the material will become smaller and smaller. At this time, the spring (705) will drive the top plate (706), the sliding block (707) and the placement seat (708) to move upward. During the upward movement of the top plate (706), the trigger button will contact the inner wall of the rectangular seat (701), and the trigger button will transmit a signal to the external controller. The external controller causes the electric push rod (506) to drive the second rack (507) to move downward, so that the second gear (508) drives the rotating shaft (509) and the closing blade (510) to rotate, and the closing blade (510) will close the first rectangular through hole. At this time, the switch valve on the exhaust pipe is in the closed state, and the heat gas in the recovery pipe (502) is transported to the inside of the evaporator housing (301) through the middle pipe, and the evaporator absorbs the latent heat in the wet air.

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