A photovoltaic-based solar heat pump double-reheat drying equipment

Abstract

The invention discloses a photovoltaic-based solar heat pump double-reheat drying device, which relates to the technical field of drying equipment, and comprises a drying loading structure and a solar heat pump double-reheat structure. The solar heat pump double-reheat structure comprises a solar collector and a heat release component. A cleaning structure is installed on the solar collector. The plurality of cleaning brushes clean the outer wall of a heat collecting tube after the outer side is washed by water flow sprayed from a nozzle. Under the action of a plurality of gears 1, a plurality of nozzles, a plurality of water guides 2, a plurality of rings and a plurality of cleaning brushes, the outer sides of a plurality of heat collecting tubes are efficiently cleaned, thereby reducing the time cost investment required for cleaning the plurality of heat collecting tubes.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to photovoltaic-based solar heat pump double-reheat drying equipment. Background Art

[0002] Solar air source heat pump is an energy-efficient technology. It can convert low-grade energy into high-grade energy by consuming a part of high-grade energy through reverse Carnot thermal cycle. The objects of heat pump drying have been expanded from the initial wood drying to food processing, fruits and vegetables, medicines and biological products and many other fields.

[0003] Although heat pump drying has many advantages, since solar thermal collection equipment needs to be set up in open areas and is usually set up on the top of a building to save space, dust is prone to accumulate on the outside of the collector tubes, which is difficult for staff to find, affecting the solar energy conversion efficiency. In addition, the solar thermal collection equipment composed of multiple slender collector tubes is more troublesome to clean. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a photovoltaic-based solar heat pump double-reheat drying device to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a photovoltaic-based solar heat pump double-reheat drying device, comprising a drying loading structure and a solar heat pump double-reheat structure, the solar heat pump double-reheat structure comprising a solar collector and a heat release component, a cleaning structure is installed on the solar collector, the solar collector comprises a water storage tank and a plurality of heat collecting tubes; the cleaning structure comprises a diverter box three and a plurality of water guide members one fixedly connected to the top of the diverter box three, a plurality of the water guide members one are fixedly connected to the top of a water guide member two, a plurality of the water guide members two are rotatably connected to the inside of a plurality of rings, and a plurality of the rings are respectively sleeved on a plurality of heat collecting tubes On the outside of the tube, several cleaning brushes are fixedly connected to the inside of the circular ring, one end of the circular ring is fixedly connected to gear one, and the water guide part two is fixedly connected to several nozzles inclined toward the heat collecting pipe on the side away from the water tank, one of the gears one is meshed with gear two, and gears three and gear four are respectively meshed on both sides of gear two, a light sensor is fixedly connected to the top of the water tank, and a sealing assembly is driven by gear four, which protects the light sensor, a drain valve is fixedly connected to the bottom of the diverter box three on the side away from the water tank, and torsion springs are arranged on both sides of the diverter box three; a water supply assembly is arranged between the diverter box three and the heat release assembly.

[0006] Preferably, water outlet valves are fixedly installed at both ends of the water storage tank, and the two water outlet valves are respectively fixedly connected to a diversion pipe 1 and a diversion pipe 2, one end of the diversion pipe 1 is fixedly connected to a three-way valve 1, and the normally closed end of the three-way valve 1 is fixedly connected to a diversion pipe 7, the three-way valve 1 is fixedly connected to a hot water tank, and a water pump 1 is fixedly connected to the side of the top of the hot water tank away from the three-way valve 1, the water outlet end of the water pump 1 is fixedly connected to the three-way valve 2, and the normally open end of the three-way valve 2 is fixedly connected to the diversion pipe 2.

[0007] Preferably, the water supply component includes a water pump 2, which is fixedly installed at the bottom of the water tank, a diversion pipe 6 is fixedly connected between the water outlet end of the water pump 2 and the diversion box 3, a three-way valve 3 is fixedly connected to the water inlet end of the water pump 2, and a diversion pipe 5 is fixedly connected between the normally closed end of the three-way valve 3 and the normally closed end of the three-way valve 2.

[0008] Preferably, the heat release component includes four electric heating elements fixedly installed inside the hot water tank, wherein two of the electric heating elements are provided with lower guide grooves at the bottom, and the other two electric heating elements are provided with upper guide grooves at the top, and both ends of the hot water tank are fixedly connected with a diversion box 1, and a number of heat exchange tubes are fixedly connected between the two diversion boxes 1, and the several heat exchange tubes all pass through the four electric heating elements.

[0009] Preferably, one of the diversion boxes is fixedly installed with an air purifier on one side, and the other diversion box is fixedly installed with a compressor on one side, the compressor air outlet is fixedly connected to a fan, a temperature sensor is fixedly connected to one side of the hot water tank, and the fan air outlet is fixedly connected to a guide pipe three.

[0010] Preferably, one end of the diversion pipe three is fixedly connected to the diversion box two, and one side of the diversion box two is fixedly connected to a plurality of diversion pipes four.

[0011] Preferably, the drying loading structure includes two support frames, a conveyor belt is arranged between the two support frames, friction rollers are arranged on both sides inside the conveyor belt, and both ends of the friction rollers are rotatably connected to the two support frames respectively, one side of one of the support frames is provided with a plurality of circular holes, and a plurality of the guide ducts respectively penetrate the plurality of circular holes and extend to the interior of the conveyor belt.

[0012] Preferably, an isolation frame is fixedly connected between the two support frames, a plurality of support plates are fixedly connected to one side of the support frame close to the guide pipe four, a filling block is arranged inside the conveyor belt, an inclined groove is opened on the top of the filling block, a plurality of support grooves are opened on one side of the filling block, and one end of the filling block passes through the support frame away from the guide pipe four.

[0013] Preferably, one side of the water tank is fixedly connected to a forward and reverse motor, the gear three is fixedly installed on the output end of the forward and reverse motor, both ends of one side of the water tank are fixedly connected to two side support rods, the gear two is rotatably sleeved on the outside of one of the side support rods, both sides of the diverter box three are fixedly connected to short pipe rods, the two short pipe rods are respectively fixedly connected to two torsion springs, an installation box is installed on the outside of the torsion spring, the installation box is fixedly installed on the bottom of the water tank, the bottom of the diverter box three is fixedly connected to two support wheels, guide rails are provided on the outside of the two support wheels, a support plate two is provided on one side of the water tank, a plurality of the heat collecting tubes are fixedly connected between the support plate two and the water tank, and the guide rails are fixedly connected between the support plate two and the water tank.

[0014] Preferably, the sealing assembly includes an electromagnet, which is rotatably sleeved on the outside of an adjacent side support rod, and the gear four is rotatably disposed on the outside of the electromagnet. One end of the electromagnet is fixedly connected to a magnet part, and a gear five is fixedly sleeved on the outside of the magnet part. The gear five is meshed with a rack, and the rack is slidably connected to a guide frame, which is fixedly connected to a water tank, and the top of the rack is fixedly connected to a fixed bent plate, one end of the fixed bent plate is fixedly connected to a thin plate, and the bottom of the thin plate is fixedly connected to a rubber cover, and the rubber cover is sleeved on the outside of the detection end of the light sensor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Under the transmission action of gear 2 and several gears 1, several rings rotate, and the rotating rings drive several cleaning brushes fixed inside to clean the outside of the heat collecting tube. The rings move synchronously with the water guide part 2 in the rotating state, so that several cleaning brushes clean the outer wall of the heat collecting tube after the outer side is washed by the water flow sprayed from the nozzle. Under the action of several gears 1, several nozzles, several water guide parts 2, several rings and several cleaning brushes, the outside of several heat collecting tubes is efficiently cleaned, reducing the time cost required for cleaning several heat collecting tubes, and avoiding the situation that the utilization efficiency of solar energy is reduced due to dust accumulation on the outside of the heat collecting tube cannot be quickly resolved.

[0017] 2. Hot water is delivered to water pump 2 by water pump 1 through three-way valve 2, diversion pipe 5 and three-way valve 3. Water pump 2 delivers the hot water to the inside of diversion box 3 through diversion pipe 6, so that hot water is injected into diversion box 3 and sprayed out from the nozzle. At the same time, structures such as diversion box 3, water guide piece 1, water guide piece 2, ring and gear 1 are heated, which plays a role in melting ice when there is ice on the outside of the heat collecting tube. After the ice on the outside of the heat collecting tube melts, diversion box 3 moves under the influence of gravity.

[0018] 3. After the forward and reverse motors work in reverse for a period of time, the forward and reverse motors and the electromagnet stop working at the same time, so that the rubber cover is reset and the detection end of the light sensor is sealed and protected to prevent dust from falling on the top of the light sensor and affecting the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the split structure of the drying and loading structure of the present invention;

[0021] Figure 3 It is a partial structural schematic diagram of the isolation frame part of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the double heat recovery structure of the solar heat pump of the present invention;

[0023] Figure 5 It is a partial structural schematic diagram of the hot water tank part of the present invention;

[0024] Figure 6 It is a structural schematic diagram of two parts of the diverter box of the present invention;

[0025] Figure 7 A side view of a water storage tank portion of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the water storage tank part of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the three parts of the diverter box of the present invention;

[0028] Fig.10 For the present invention Fig. 9 A partial enlarged view of part C in the middle;

[0029] Fig.11 It is a schematic diagram of the structure of a part of the gear of the present invention;

[0030] Fig.12 It is a schematic structural diagram of the rack part of the present invention;

[0031] Fig.13 It is a structural schematic diagram of a part of the water guide member of the present invention;

[0032] Fig.14 It is a schematic structural diagram of a ring and a part of a gear of the present invention.

[0033] Numbers in the figure: 1. Drying loading structure; 11. Support frame; 12. Friction roller; 13. Isolation frame; 14. Support plate 1; 15. Conveyor belt; 16. Filling block; 17. Support groove; 18. Inclined groove; 19. Round hole; 2. Solar heat pump double heat recovery structure; 21. Heat collecting tube; 22. Water storage tank; 23. Side support rod; 24. Support plate 2; 25. Water outlet valve; 26. Diversion pipe 1; 27, three-way valve 1; 28, hot water tank; 29, diverter box 1; 210, heat exchange tube; 211, electric heating element; 212, upper guide groove; 213, lower guide groove; 214, water pump 1; 215, three-way valve 2; 216, guide pipe 2; 217, air purifier; 218, compressor; 219, fan; 220, guide pipe 3; 221, diverter box 2; 222 , diversion pipe four; 223, diversion pipe five; 224, three-way valve three; 225, water pump two; 226, diversion pipe six; 227, diversion pipe seven; 228, temperature sensor; 3, cleaning structure; 31, diversion box three; 32, water guide piece one; 33, water guide piece two; 34, ring; 35, cleaning brush; 36, nozzle; 37, gear one; 38, gear two; 39, forward and reverse motor; 310. Gear three; 312. Mounting box; 313. Torsion spring; 314. Pipe short rod; 315. Support wheel; 316. Guide rail; 317. Drain valve; 318. Gear four; 319. Electromagnet; 320. Magnet; 321. Gear five; 322. Rack; 323. Guide frame; 324. Fixed bent plate; 325. Thin plate; 326. Rubber cover; 327. Light sensor. DETAILED DESCRIPTION

[0034] 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.

[0035] Example: Figure 1-Figure 14 As shown, the present invention provides a technical solution for a photovoltaic-based solar heat pump double reheat drying device. When the solar heat pump double reheat drying device composed of a drying loading structure 1, a solar heat pump double reheat structure 2 and a cleaning structure 3 is installed, a PLC controller, a numerical control device, a digital display controller and other human-computer interaction devices are installed for the solar heat pump double reheat drying device to realize control. This is an existing public technology and will not be described in detail here.

[0036] A solar collector in a solar heat pump double heat recovery structure 2, which is composed of a plurality of heat collecting tubes 21, a plurality of support plates 24 fixedly connected between the heat collecting tubes 21, a water storage tank 22, four side support rods 23 on one side of the water storage tank 22, and two water outlet valves 25 fixedly installed at both ends of the water storage tank 22, is installed in an open outdoor location. The solar collector collects heat by absorbing solar energy;

[0037] A three-way valve 27 fixedly connected to one end of a diversion pipe 26 for water outlet is fixedly connected to a hot water tank 28. Figure 4 As shown, the hot water processed by the solar collector is stored in the hot water tank 28 through the outlet valve 25, the diversion pipe 26 and the three-way valve 27; and a water pump 214 is fixedly connected to the side of the top of the hot water tank 28 away from the three-way valve 27, and the three-way valve 215 fixedly connected to the water outlet end of the water pump 214 is fixedly connected to the diversion pipe 216 at its normally open end, and the diversion pipe 216 is fixedly connected to the outlet valve 25 installed on the water storage tank 22 for water inlet. When the water pump 214 works and the three-way valve 215, the diversion pipe 216 and the outlet valve 25 divert the water in the hot water tank 28 that has been used and has a lowered temperature, flows back into the water storage tank 22; this process can refer to the working principle of the existing solar water heater and will not be described in detail here.

[0038] In the case of sufficient sunlight, the solar collector will keep the hot water in the hot water tank 28 at a certain temperature, reaching the temperature between 40 and 70°C required for drying some agricultural and sideline products and food. In this case, the air purifier 217, the compressor 218 and the compressor 218 are controlled to work, and the two ends of the hot water tank 28 are fixedly connected to the diverter box 29, and a plurality of heat exchange tubes 210 are fixedly connected between the two diverter boxes 29. Figure 5 As shown, the two diverter boxes 29 are fixedly connected to the air outlet end of the air purifier 217 and the air inlet end of the compressor 218 respectively; at this time, the air purifier 217 works to extract air, purify the air to remove moisture and impurities, and then transport it to the diverter box 29 fixedly connected to the air outlet end. The purified air passes through a plurality of heat exchange tubes 210 and then enters the compressor 218 from another diverter box 29. Since the heat exchange tubes 210 are arranged inside the hot water tank 28, the air exchanges heat with the hot water inside the hot water tank 28 during the flow inside the heat exchange tubes 210 to form high-temperature air. Four electric heating elements 211 are fixedly installed inside the hot water tank 28. The four electric heating elements 211 divide the inside of the hot water tank 28 into five chambers, and the tops of the first electric heating element 211 and the third electric heating element 211 from left to right are both provided with upper guide grooves 212, and the bottoms of the second electric heating element 211 and the fourth electric heating element 211 from left to right are both provided with lower guide grooves 213, as shown in FIG. Figure 6As shown, the arrangement of four electric heating elements 211, two upper guide grooves 212 and two lower guide grooves 213 enables the hot water inside the hot water tank 28 to move along a stepped path, ensuring that the hot water is in sufficient contact and heat exchange with a plurality of heat exchange tubes 210, so that the air flowing inside the heat exchange tubes 210 becomes high-temperature air;

[0039] High-temperature air enters the compressor 218 from the diverter box 29 far away from the air purifier 217. The high-temperature air dehumidified by the compressor 218 is extracted and pressurized by the fan 219 installed at the outlet end of the compressor 218. Finally, the high-temperature and high-pressure airflow is sent by the fan 219 into the guide duct three 220 installed at the outlet end, and a plurality of guide ducts four 222 with a smaller inner diameter are fixedly connected to one side of the diverter box two 221 fixedly connected at one end of the guide duct three 220. A plurality of circular holes 19 are opened on one side of a support frame 11 in the drying loading structure 1, and a plurality of guide ducts four 222 respectively penetrate the plurality of circular holes 19 and extend to the inside of the conveyor belt 15. Therefore, the high-temperature and high-pressure airflow enters the drying loading structure 1 at a plurality of positions under the action of the diverter box two 221 and a plurality of guide ducts four 222, and provides high-temperature airflow for drying materials on the drying loading structure 1.

[0040] When there is insufficient sunlight, the solar collector will make the hot water temperature inside the hot water tank 28 not high enough. The electric heating elements 211 inside the hot water tank 28 are controlled to heat the hot water inside the hot water tank 28 so that the temperature inside the hot water tank 28 reaches the required level. By installing the electric heating elements 211 inside the hot water tank 28, the internal space utilization efficiency of the hot water tank 28 is improved, and upper guide grooves 212 or lower guide grooves 213 are opened on the electric heating elements 211 at different positions to redirect the water flow, thereby improving the efficiency of installing the electric heating elements 211.

[0041] In addition, a conveyor belt 15 is arranged between the two support frames 11 in the drying loading structure 1, and friction rollers 12 are installed on both sides of the conveyor belt 15. The two ends of the friction rollers 12 are rotatably connected to the two support frames 11 respectively. The two support frames 11, the conveyor belt 15 and the two friction rollers 12 constitute a conveying device. After the conveyor belt 15 is laid and placed with materials, the solar heat pump double heat recovery structure 2 is controlled to work to transport high-temperature and high-pressure airflow to the conveyor belt 15. Since an isolation frame 13 is fixedly connected between the two support frames 11, and small holes are opened on the conveyor belt 15, the isolation frame 1 3 Under the restriction of blocking, most of the high-temperature and high-pressure airflow can only be discharged through the tiny holes on the top of the conveyor belt 15. During the discharge of the high-temperature and high-pressure airflow, the materials laid on the top of the conveyor belt 15 are dried; a driving motor capable of forward and reverse rotation can be installed at one end of a certain friction roller 12, and the driving motor can be controlled to alternately rotate forward and reverse in a short time, so as to shake the materials on the top of the conveyor belt 15 and increase the drying effect; after the drying is completed, the driving motor can be controlled to work for a long time, so that the dried materials on the top of the conveyor belt 15 can be transported to a position to complete the material collection.

[0042] A filling block 16 is arranged inside the conveyor belt 15. The filling block 16 fills the inside of the conveyor belt 15, reducing the amount of high-temperature and high-pressure hot air required to fill the inside of the conveyor belt 15, so as to increase the internal air pressure of the drying loading structure 1. An inclined groove 18 is opened on the top of the filling block 16. The fine materials and fine impurities that fall to the top of the filling block 16 through the fine holes are stored in the inclined groove 18. The bottom surface of the inclined groove 18 is high near the guide pipe four 222 and low away from the guide pipe four 222, so that a triangular depression is formed on the top of the filling block 16, such as Figure 2 As shown, under the blowing of the high-pressure airflow discharged from the guide pipe four 222 and the action of the inclined smooth surface on the top of the filling block 16, the fine materials and fine impurities move to the deepest position inside the chute 18 and are stored. One end of the filling block 16 at the deepest position of the spatial chute 18 passes through the support frame 11 away from the guide pipe four 222, so the filling block 16 can be pulled out of a part of the interior of the conveyor belt 15, and the fine materials and fine impurities stored in the chute 18 can be collected and cleaned.

[0043] In addition, a plurality of support plates 14 are fixedly connected to one side of the support frame 11 close to the guide pipe 4 222, a plurality of support grooves 17 are opened on one side of the filling block 16, and the plurality of support plates 14 are arranged inside the support grooves 17 to support the filling block 16, and the isolation frame 13 is fixedly connected to the support frame 11, so that the filling block 16 and the isolation frame 13 support and fill the inside of the conveyor belt 15 without causing excessive pressure on the conveyor belt 15.

[0044] A light sensor 327 is fixedly connected to the top of the water tank 22, and the human-machine interaction device controls the electromagnet 319 in the cleaning structure 3 to work for a period of time at intervals, and in this process controls the forward and reverse motor 39 to work forward for a period of time and then stop working, and then work reversely for a period of time;

[0045] Since a forward and reverse motor 39 is fixedly connected to one side of the water tank 22, a gear 3 310 is fixedly installed at the output end of the forward and reverse motor 39, and a gear 2 38 meshing with the gear 3 310 is rotatably sleeved on the outer side of one of the side support rods 23, such as Figure 8 As shown, when the forward and reverse motor 39 rotates forward, the gear 2 38 is driven forward by the gear 3 310, and the gear 2 38 drives the meshing gear 4 318 to rotate forward; the electromagnet 319 in the sealing assembly is rotatably arranged inside the gear 4 318, and the electromagnet 319 is rotatably sleeved on the outer side of the adjacent side support rod 23, as shown in FIG. Fig.12 As shown, at this time, the electromagnet 319 works and is adsorbed and fixed together with the gear four 318. The side support rod 23 is made of plastic and will not affect the working state of the electromagnet 319. Therefore, the rotating gear four 318 drives the electromagnet 319 and the magnet member 320 fixedly connected to one end of the electromagnet 319 to rotate. The gear five 321 fixedly sleeved on the outer side of the magnet member 320 is meshed with the rack 322. The positively rotating gear five 321 drives the rack 322 to move. The guide frame 323 fixedly connected to the water tank 22 is slidably connected to the rack 322, so that the rack 322 is limited and guided to move horizontally; the top of the rack 322 is fixed One end of the fixed bent plate 324 is fixedly connected to a thin plate 325, and the bottom of the thin plate 325 is fixedly connected to a rubber cover 326. At this time, the rack 322 drives the fixed bent plate 324, the thin plate 325 and the rubber cover 326 to move, so that the rubber cover 326 is separated from the state of being sleeved on the outer side of the detection end of the light sensor 327. The rubber cover 326 has good elasticity, so the rubber cover 326 automatically deforms when leaving the outer side of the detection end of the light sensor 327 without affecting its own movement, so that the detection end of the light sensor 327 is exposed, and the light sensor 327 detects the light intensity at the location of the solar collector;

[0046] After the forward and reverse motor 39 works in reverse for a period of time, the forward and reverse motor 39 and the electromagnet 319 stop working at the same time, so that the rubber cover 326 is reset, and the detection end of the light sensor 327 is sealed and protected to prevent dust from falling on the top of the light sensor 327 and affecting the detection accuracy.

[0047] During the detection process of the light sensor 327, the temperature sensor 228 simultaneously detects the temperature of the water inside the hot water tank 28. The detection results of the light sensor 327 and the temperature sensor 228 are fed back to the human-machine interaction device. When the human-machine interaction device determines that the ratio of the light intensity to the water temperature inside the hot water tank 28 is lower than the preset range, the solar collector has a low efficiency in converting solar energy. The human-machine interaction device controls the water pump 225 and the drain valve 317 to work. Since the water inlet end of the water pump 225 installed with the three-way valve 324 is fixedly connected to the three-way valve 324, as shown in FIG. Figure 4 As shown, the three-way valve three 224 is normally open and connected to the water supply system, and the working water pump two 225 pumps water through the three-way valve three 224 and then discharges it through the diversion pipe six 226 fixedly installed at the water outlet end. The diversion pipe six 226 is fixedly connected to the diversion box three 31, so water enters the inside of the diversion box three 31, and the drainage valve 317 fixedly connected to the diversion box three 31 is in a working closed state, so the diversion box three 31 is stored with water;

[0048] A plurality of water guide members 32 are fixedly connected to the top of the diverter box 31, and a plurality of water guide members 32 are fixedly connected to the top of each of the water guide members 33. A plurality of nozzles 36 inclined toward the heat collecting pipe 21 are fixedly connected to the side of the water guide member 33 away from the water storage tank 22. Fig.11 As shown, the water injected into the diverter box 3 31 is sprayed out from the plurality of nozzles 36 under the guidance of the plurality of water guide members 1 32 and the plurality of water guide members 2 33, and the water is sprayed by the plurality of nozzles 36 to multiple positions outside the heat collecting tube 21, so as to wash the outside of the heat collecting tube 21;

[0049] The water can enter the water guide part 1 32 only after the diverter box 3 31 is filled with water. Two support wheels 315 are fixedly connected to the bottom of the diverter box 3 31. Guide rails 316 are arranged on the outside of the two support wheels 315. The guide rails 316 are fixedly connected between the support plate 24 and the water storage tank 22. The guide rails 316 support and guide the support wheels 315. The diverter box 3 31 supported by the support wheels 315 is suspended, so the diverter box 3 31 can move. The solar collector is an inclined arrangement with the water storage tank 22 on the upper heat collecting tube 21 away from the end of the water storage tank 22 at the bottom. Figure 7 As shown, the guide rail 316 is also inclined. After the diverter box 31 is filled with water, the diverter box 31 moves downward under the influence of gravity and the guidance of the guide rail 316, the water guide 2 33 moves, the nozzle 36 moves, and the water sprayed by the nozzle 36 covers the outside of the heat collecting tube 21.

[0050] And while the guide pipe five 223 is working, the forward and reverse motors 39 are controlled to work synchronously, and the working forward and reverse motors 39 drive the gear two 38 to rotate through the gear three 310, and the rings 34 are rotatably connected inside the plurality of water guide parts two 33, and the plurality of rings 34 are respectively sleeved on the outside of the plurality of heat collecting pipes 21, and the rings 34 are suspended and do not contact the heat collecting pipes 21, and one side of the plurality of rings 34 is fixedly connected with the gear one 37, and two adjacent gears one 37 are meshed together, and the gear two 38 is meshed with a gear one 37, and the plurality of rings 34 are rotated under the transmission action of the gear two 38 and the plurality of gears one 37, and the rotating rings 34 drive the inner Several cleaning brushes 35 fixedly connected to the parts clean the outside of the heat collecting tube 21, and the ring 34 moves synchronously with the water guiding member 2 33 in a rotating state, so that the several cleaning brushes 35 clean the outer wall of the heat collecting tube 21 after the outer side is washed by the water flow sprayed from the nozzle 36. Under the action of several gears 1 37, several nozzles 36, several water guiding members 2 33, several rings 34 and several cleaning brushes 35, the outside of several heat collecting tubes 21 is efficiently cleaned, reducing the time cost investment required for cleaning several heat collecting tubes 21, and avoiding the situation that the dust accumulation on the outside of the heat collecting tube 21 leads to the decrease of solar energy utilization efficiency and cannot be discovered in time, and the time cost investment for cleaning is high.

[0051] After a period of time, the forward and reverse motors 39, the water pump 225, and the drain valve 317 are controlled to stop working, and the drain valve 317 fixedly connected to the bottom of the side of the diverter box 31 away from the water storage tank 22 is controlled to open. At this time, the water inside the diverter box 31 is discharged through the drain valve 317, and the weight of the diverter box 31 decreases; because the two sides of the diverter box 31 are fixedly connected with the pipe short rods 314, the installation box 312 fixedly installed at the bottom of the water storage tank 22 is installed with a torsion spring 313, and the torsion spring 313 extends out of the installation box 312 One end is fixedly connected to the adjacent pipe short rod 314, such as Fig.13 As shown, at this time, the pulling force generated by the automatic winding of the two torsion springs 313 is greater than the force generated by the weight of the diverter box three 31 and the water guiding member one 32 fixed to the diverter box three 31, the water guiding member two 33 fixed to the water guiding member one 32, the ring 34 installed on the water guiding member two 33, and the gear one 37 installed on the ring 34 under the action of gravity. At this time, the winding of the two torsion springs 313 drives the diverter box three 31 to reset, completing the cleaning of several heat collecting tubes 21.

[0052] In winter, the normally closed end of the three-way valve 1 27 is controlled to be opened, and water is transported to the hot water tank 28 through the guide pipe 7 227 installed at the normally closed end of the three-way valve 1 27, and the plurality of electric heating elements 211 are controlled to work to heat the water inside the hot water tank 28, and the water pump 1 214 is controlled to work, and the normally closed end of the three-way valve 2 215 is controlled to be opened, and the normally closed end of the three-way valve 3 224 is controlled to be opened. At this time, the water pump 1 214 extracts the heated water inside the hot water tank 28. Since the guide pipe 5 223 is fixedly installed between the normally closed end of the three-way valve 2 215 and the normally closed end of the three-way valve 3 224, as shown in FIG. Figure 4 As shown, the hot water is transported to the water pump 225 by the water pump 1 214 through the three-way valve 2 215, the guide pipe 5 223 and the three-way valve 3 224. The water pump 2 225 transports the hot water to the inside of the diverter box 3 31 through the guide pipe 6 226, so that the diverter box 3 31 enters the hot water, and the hot water is sprayed out from the nozzle 36. At the same time, the diverter box 3 31, the water guide piece 1 32, the water guide piece 2 33, the ring 34, the gear 1 37 and other structures are heated, which plays a role in melting the ice on the outside of the heat collecting pipe 21. After the ice on the outside of the heat collecting pipe 21 melts, the diverter box 3 31 moves under the influence of gravity, which can melt and clean the ice and snow on the outside of the heat collecting pipe 21, thereby reducing the possibility of the heat collecting pipe 21 being damaged by ice and snow.

[0053] In addition, such as Fig.10 As shown, one end of the magnet 320 is fixed to the water tank 22 by magnetic force, so that the magnet 320 can rotate only after being subjected to a certain force. When the electromagnet 319 is not working, the magnet 320 will not rotate under the influence of the gear four 318.

[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A photovoltaic-based solar heat pump double heat recovery drying device, comprising a drying loading structure (1) and a solar heat pump double heat recovery structure (2), characterized in that: The solar heat pump double heat recovery structure (2) comprises a solar heat collector and a heat release component, a cleaning structure (3) is installed on the solar heat collector, and the solar heat collector comprises a water storage tank (22) and a plurality of heat collection tubes (21); The cleaning structure (3) comprises a diverter box three (31) and a plurality of water guide members one (32) fixedly connected to the top of the diverter box three (31); the tops of the plurality of water guide members one (32) are fixedly connected to the water guide member two (33); the interiors of the plurality of water guide members two (33) are rotatably connected to circular rings (34); the plurality of circular rings (34) are respectively sleeved on the outsides of the plurality of heat collecting tubes (21); the interiors of the circular rings (34) are fixedly connected to a plurality of cleaning brushes (35); one end of the circular ring (34) is fixedly connected to a gear one (37); the side of the water guide member two (33) away from the water storage tank (22) is fixedly connected to a plurality of nozzles (36) inclined toward the heat collecting tube (21); one of the gears one (37) is meshed with a gear two (38); the two sides of the gear two (38) are respectively meshed with a gear three (310) and a gear four (318); The top of the water storage tank (22) is fixedly connected to a light sensor (327); the gear four (318) drives a sealing assembly, which protects the light sensor (327); the bottom of the diverter box three (31) on a side away from the water storage tank (22) is fixedly connected to a drain valve (317); torsion springs (313) are provided on both sides of the diverter box three (31); and a water supply assembly is provided between the diverter box three (31) and the heat release assembly.

2. A photovoltaic solar heat pump double reheat drying device according to claim 1, characterized in that: Water outlet valves (25) are fixedly installed at both ends of the water storage tank (22); the two water outlet valves (25) are respectively fixedly connected to a diversion pipe 1 (26) and a diversion pipe 2 (216); one end of the diversion pipe 1 (26) is fixedly connected to a three-way valve 1 (27); the normally closed end of the three-way valve 1 (27) is fixedly connected to a diversion pipe 7 (227); the three-way valve 1 (27) is fixedly connected to a hot water tank (28); a side of the top of the hot water tank (28) away from the three-way valve 1 (27) is fixedly connected to a water pump 1 (214); the water outlet end of the water pump 1 (214) is fixedly connected to a three-way valve 2 (215); the normally open end of the three-way valve 2 (215) is fixedly connected to the diversion pipe 2 (216).

3. A photovoltaic-based solar heat pump double reheat drying device according to claim 2, characterized in that: The water supply assembly comprises a water pump 2 (225), the water pump 2 (225) being fixedly mounted at the bottom of a water storage tank (22), a diversion pipe 6 (226) being fixedly connected between a water outlet end of the water pump 2 (225) and a diversion box 3 (31), a three-way valve 3 (224) being fixedly connected to a water inlet end of the water pump 2 (225), and a diversion pipe 5 (223) being fixedly connected between a normally closed end of the three-way valve 3 (224) and a normally closed end of the three-way valve 2 (215).

4. The photovoltaic solar heat pump double reheat drying equipment according to claim 2, characterized in that: The heat release component comprises four electric heating elements (211) fixedly installed inside a hot water tank (28), wherein two of the electric heating elements (211) are provided with lower guide grooves (213) at the bottom, and the other two of the electric heating elements (211) are provided with upper guide grooves (212) at the top, and both ends of the hot water tank (28) are fixedly connected to a diverter box (29), and a plurality of heat exchange tubes (210) are fixedly connected between the two diverter boxes (29), and the plurality of heat exchange tubes (210) pass through the four electric heating elements (211).

5. A photovoltaic-based solar heat pump double reheat drying device according to claim 4, characterized in that: An air purifier (217) is fixedly mounted on one side of one of the diverter boxes (29), a compressor (218) is fixedly mounted on one side of the other diverter box (29), an air outlet end of the compressor (218) is fixedly connected to a fan (219), a temperature sensor (228) is fixedly connected to one side of the hot water tank (28), and an air outlet end of the fan (219) is fixedly connected to a guide pipe (220).

6. A photovoltaic-based solar heat pump double reheat drying device according to claim 5, characterized in that: One end of the diversion pipe three (220) is fixedly connected to the diversion box two (221), and one side of the diversion box two (221) is fixedly connected to a plurality of diversion pipes four (222).

7. A photovoltaic-based solar heat pump double reheat drying device according to claim 6, characterized in that: The drying loading structure (1) comprises two support frames (11), a conveyor belt (15) is arranged between the two support frames (11), friction rollers (12) are arranged on both sides inside the conveyor belt (15), and both ends of the friction roller (12) are rotatably connected to the two support frames (11), one side of one of the support frames (11) is provided with a plurality of circular holes (19), and a plurality of the guide pipes (222) respectively penetrate the plurality of circular holes (19) and extend into the interior of the conveyor belt (15).

8. The photovoltaic solar heat pump double reheat drying equipment according to claim 7, characterized in that: An isolation frame (13) is fixedly connected between the two support frames (11), a plurality of support plates (14) are fixedly connected to one side of the support frame (11) close to the guide pipe four (222), a filling block (16) is arranged inside the conveyor belt (15), an inclined groove (18) is provided on the top of the filling block (16), a plurality of support grooves (17) are provided on one side of the filling block (16), and one end of the filling block (16) passes through the support frame (11) away from the guide pipe four (222).

9. The photovoltaic solar heat pump double reheat drying equipment according to claim 1, characterized in that: One side of the water storage tank (22) is fixedly connected to a forward and reverse motor (39); the gear three (310) is fixedly mounted on the output end of the forward and reverse motor (39); two sides of one side of the water storage tank (22) are fixedly connected to two side support rods (23); the gear two (38) is rotatably sleeved on the outside of one of the side support rods (23); both sides of the diversion box three (31) are fixedly connected to short pipe rods (314); the two short pipe rods (314) are respectively fixedly connected to two torsion springs (313); and the outside of the torsion springs (313) are provided with a plurality of short pipe rods (314). An installation box (312) is provided, the installation box (312) is fixedly installed at the bottom of the water storage tank (22), two support wheels (315) are fixedly connected to the bottom of the diversion box three (31), guide rails (316) are provided on the outside of the two support wheels (315), a support plate two (24) is provided on one side of the water storage tank (22), a plurality of the heat collecting tubes (21) are fixedly connected between the support plate two (24) and the water storage tank (22), and the guide rails (316) are fixedly connected between the support plate two (24) and the water storage tank (22).

10. A photovoltaic-based solar heat pump double reheat drying device according to claim 9, characterized in that: The sealing assembly comprises an electromagnet (319), the electromagnet (319) being rotatably sleeved on the outside of an adjacent side support rod (23), the gear four (318) being rotatably sleeved on the outside of the electromagnet (319), one end of the electromagnet (319) being fixedly connected to a magnet member (320), the outside of the magnet member (320) being fixedly sleeved with a gear five (321), the gear five (321) being meshed with a rack (322), the rack (322) being slidably connected to a guide frame (323), the guide frame (323) being fixedly connected to a water storage tank (22), the top of the rack (322) being fixedly connected to a fixed bent plate (324), one end of the fixed bent plate (324) being fixedly connected to a thin plate (325), the bottom of the thin plate (325) being fixedly connected to a rubber cover (326), the rubber cover (326) being sleeved on the outside of a detection end of a light sensor (327).

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