Heat-collecting type forage drying system based on wind-solar complementary energy supply

Abstract

The present application relates to the technical field of drying devices, and discloses a heat-collecting type forage drying system based on wind-solar complementary energy supply, comprising a drying cavity, an energy supply device, and a drying system. The energy supply device comprises a solar photovoltaic power generation panel, a wind turbine generator and a storage battery; the drying system comprises an air heat drying apparatus and a water heat drying apparatus; the air heat drying apparatus comprises a first solar heat collector, an air heat collector tube, a blower and a standby electric auxiliary heater; a flow equalizing plate is provided in the drying cavity; the flow equalizing plate divides the interior of the drying cavity into an air inlet chamber and a storage chamber; the water heat drying apparatus comprises a second solar heat collector, a water flow heat collector tube, a circulating water pump and heat exchangers; the heat exchangers are installed on forage placing stations; and each heat exchanger has one end communicated with a water outlet end of the circulating water pump, and the other end communicated with the other end of the water flow heat collector tube. The drying process has good stability and continuity, and the problem of low drying efficiency is solved.

Description

A solar-wind-solar hybrid heat-collecting grass drying system Technical Field

[0001] The present application relates to the technical field of drying systems, and in particular to a heat-collecting forage drying system with wind-solar complementary energy supply. Background Art

[0002] In modern animal husbandry, forage hay is the main forage processed product, accounting for 70% of grass products. Forage drying and processing is one of the most important links affecting forage quality.

[0003] The main method of drying and processing forage in my country is the dry harvesting process, which reduces the moisture content of forage to below the safe moisture content through natural drying, and then baling the finished forage. On the other hand, the direct harvesting process can harvest, chop, load the forage, and then transport it from the field to the drying factory for direct mechanical drying operations, completing the efficient drying and processing of forage.

[0004] Different forage drying methods and equipment are key factors affecting forage production efficiency and quality. Currently, the main forage drying methods include natural drying, hot air drying, and solar drying. Natural drying does not require special equipment and is low in cost, but the drying time is easily affected by the environment, resulting in a large loss of quality. Hot air drying is a commonly used mechanical drying method, which uses fuel-heated air to exchange heat and mass with forage to remove moisture, significantly improving the drying efficiency. However, using coal as an energy source for forage drying will cause environmental pollution, and the cost of using fuel is too high. To solve this problem, the existing technology has also proposed solar drying methods, but most of them are single solar energy supply modes. Due to the instability and discontinuity of solar energy, the sole use of solar energy is subject to certain time, space and regional limitations, and the limited drying space restricts the heat and mass exchange efficiency of forage drying. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a heat-collecting forage drying system with wind and solar complementary energy supply, so as to solve the technical problem of low drying efficiency caused by instability and discontinuity in the existing drying process of a single solar energy supply mode.

[0006] To achieve the above technical objectives, the present application provides a wind-solar complementary energy supply heat-collecting forage drying system, including a drying bin, energy supply equipment and drying equipment;

[0007] The energy supply equipment includes solar photovoltaic panels, wind turbines and batteries;

[0008] The solar photovoltaic power generation panel and the wind turbine generator set are both electrically connected to the battery;

[0009] The drying equipment includes an air-heat drying device and a water-heat drying device;

[0010] The air-heat drying device includes a first solar heat collector, an air heat collecting pipe, a blower and a standby electric auxiliary heater;

[0011] A flow equalizing plate is provided in the drying chamber;

[0012] The flow equalizing plate divides the drying chamber into an air inlet chamber and a storage chamber;

[0013] The storage chamber is provided with a forage placement station;

[0014] The standby electric auxiliary heater is installed in the air inlet chamber and is used to heat the air passing through the air inlet chamber;

[0015] The air heat collecting pipe is installed on the first solar collector, and one end of the air collecting pipe is connected to the air inlet end of the blower through the hot air pipe;

[0016] The air outlet end of the blower is in communication with the air inlet chamber;

[0017] The hydrothermal drying device includes a second solar heat collector, a water flow heat collection pipe, a circulating water pump and a heat exchanger;

[0018] The water flow heat collecting pipe is installed on the second solar collector, and one end is connected to the water inlet end of the circulating water pump through a hot water pipe;

[0019] The heat exchanger is installed on the forage placement station, and one end of the heat exchanger is connected to the water outlet end of the circulating water pump, and the other end is connected to the other end of the water flow heat collecting pipe.

[0020] Furthermore, it also includes a tracking bracket capable of tracking light;

[0021] The solar photovoltaic power generation panel, the first solar thermal collector and the second solar thermal collector are installed on the tracking bracket.

[0022] Furthermore, the hydrothermal drying device further comprises a first condenser;

[0023] The other end of the heat exchanger is connected to the other end of the water flow heat collecting pipe through the first condenser;

[0024] The first condenser is used to cool the water that flows back to the water flow heat collecting pipe.

[0025] Furthermore, there are a plurality of grass placement stations, which are divided into two groups along the direction close to or away from the flow equalizing plate;

[0026] A transport corridor is formed between a group of the grass placement stations close to the flow equalizing plate and another group of the grass placement stations away from the flow equalizing plate;

[0027] There are multiple heat exchangers, which correspond one to one with the forage placement stations.

[0028] Furthermore, a first grass placement rack is installed one by one on a group of the grass placement stations close to the flow equalizing plate;

[0029] A second grass placement rack is installed on another group of grass placement stations away from the flow equalizing plate in a one-to-one correspondence;

[0030] The first grass rack and the second grass rack are both provided with at least one layer of a storage board for placing grass and provided with ventilation holes;

[0031] The heat exchanger is installed at the bottom of the storage plate.

[0032] Furthermore, the air-heat drying device further includes a filter;

[0033] The filter is installed at the other end of the air heat collecting pipe.

[0034] Furthermore, a spoiler fan is included;

[0035] The turbulence fan is installed on the top of the drying chamber and is used to form turbulence in the storage chamber.

[0036] Further, it also includes post-processing equipment;

[0037] The post-processing equipment includes an exhaust fan, a second condenser, a dust collector and a dust bag;

[0038] The air inlet end of the exhaust fan is connected to the exhaust port of the drying bin connected to the storage chamber through the dust collector;

[0039] The dust collecting bag is installed on the dust collector;

[0040] The second condenser is used to cool the air during the process of being transported to the dust collector through the exhaust port.

[0041] Furthermore, the first condenser and the second condenser are both air-cooled condensers;

[0042] The air outputted from the dust collecting bag is returned to the cooling medium inlets of the first condenser and the second condenser through a circulation pipe.

[0043] Furthermore, it also includes a controller, a temperature sensor and a humidity sensor;

[0044] A water flow valve is installed on the hot water pipe;

[0045] An air control valve is installed on the hot air pipe;

[0046] The temperature sensor and the humidity sensor are installed in the storage chamber;

[0047] The controller is electrically connected to the battery, the water flow valve, the wind control valve, the temperature sensor, and the humidity sensor.

[0048] From the above technical solutions, it can be seen that the wind-solar complementary energy supply heat-collecting forage drying system designed in this application has the following beneficial effects:

[0049] 1. Utilize the combination of green and renewable solar and wind energy resources, solar thermal, solar photovoltaic, wind power generation, and wind-mechanical energy in a multi-energy complementary comprehensive utilization. The combination of multiple utilization methods ensures efficient, continuous and stable operation of forage drying, which is especially suitable for tropical forage producing areas in the northwest and southern coastal areas, and reduces carbon emissions under the traditional fuel heating and drying mode.

[0050] 2. The drying mode that combines air and circulating water heat collection is adopted to make the energy conversion and utilization in the drying system more sufficient, thereby improving the drying efficiency and the quality of dried forage. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0052] FIG1 is a structural diagram of a wind-solar complementary energy supply heat-collecting forage drying system provided in this application;

[0053] FIG2 is a flow chart of a wind-solar complementary energy supply heat-collecting forage drying system provided in this application;

[0054] In the figure: 100, energy supply equipment; 200, drying equipment; 201, air-heat drying device; 202, hydrothermal drying device; 300, post-processing equipment; 1, solar photovoltaic power generation panel; 2a, first solar thermal collector; 2b, second solar thermal collector; 3, filter; 4, air heat collection pipe; 5, water heat collection pipe; 6, tracking bracket; 7, wind turbine; 8, transmission circuit; 9, battery; 10, hot air pipe; 11, air control valve; 12, blower; 13, heat Water pipe; 14. Water flow valve; 15. Circulating water pump; 16. Controller; 17. Drying chamber; 18. Backup electric auxiliary heater; 19. Current equalizer; 20. Temperature sensor; 21. Humidity sensor; 22. Heat exchanger; 23. First condenser; 24. First hay rack; 25. Second hay rack; 26. Transport aisle; 27. Turbine fan; 28. Exhaust vent; 29. ​​Second condenser; 30. Dust collector; 31. Dust bag; 32. Exhaust fan; 33. Cold air duct outlet. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the embodiments of the present application.

[0056] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0057] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0058] The embodiment of the present application discloses a heat-collecting forage drying system with wind-solar complementary energy supply.

[0059] Referring to FIG. 1 and FIG. 2 , an embodiment of a wind-solar hybrid energy-supplying heat-collecting forage drying system provided in the present application includes:

[0060] Drying chamber 17 , energy supply device 100 and drying device 200 .

[0061] The energy supply device 100 includes a solar photovoltaic panel 1 , a wind turbine generator set 7 and a battery 9 .

[0062] Both the solar photovoltaic panel 1 and the wind turbine 7 are electrically connected to a battery 9. The electricity generated by the photovoltaic and wind power is stored in the battery 9 and then supplied to the necessary electronic control components or devices, such as the controller 16, blower 12, circulating water pump 15, exhaust fan 32, temperature sensor 20, humidity sensor 21, and backup electric auxiliary heater 18. The solar photovoltaic panel 1 is connected to the battery 9 via a transmission circuit 8, storing a portion of the electricity for use at night or during rainy weather. Similarly, the wind turbine 7 is connected to the battery 9 via a transmission circuit 8, storing a portion of the electricity converted from wind energy for use at night or during rainy weather. This functional device primarily functions as a renewable energy source, using the battery storage and external circuitry as backup electric auxiliary heating energy sources.

[0063] The drying equipment 200 includes an air-heat drying device 201 and a water-heat drying device 202 .

[0064] The air-heat drying device 201 includes a first solar heat collector 2 a , an air heat collecting pipe 4 , a blower 12 and a backup electric auxiliary heater 18 .

[0065] A flow equalizing plate 19 is provided in the drying chamber 17, which divides the drying chamber 17 into an air inlet chamber and a storage chamber. The flow equalizing plate 19 is an existing flow equalizing structure design, which has a flow equalizing effect. It can be a design with louvers to adjust the air outlet direction, or directly a design with evenly distributed flow equalizing holes, without limitation.

[0066] A grass placement station is provided in the storage chamber to facilitate the placement of grass.

[0067] A backup electric auxiliary heater 18 is installed in the air inlet chamber to heat the air passing through it. This can be an electric auxiliary heat belt. When solar thermal or photovoltaic power generation is insufficient, this heater can be heated by wind power to generate hot air. This achieves multi-energy synergy and ensures continuous and stable drying of the grass.

[0068] An air heat collection pipe 4 is mounted on the first solar thermal collector 2a. One end of the pipe is connected to the air inlet of a blower 12 via a hot air pipe 10. The air outlet of the blower 12 is connected to the air inlet chamber. Air enters the pipe 4, where it is heated by the first solar thermal collector 2a to form hot air. This air then passes through the hot air pipe 10 and the blower 12 into the air inlet chamber. The hot air is then evenly transported to the storage chamber via a flow equalizer 19, where it is blown and dried.

[0069] The hydrothermal drying device 202 includes a second solar heat collector 2 b , a water heat collection pipe 5 , a circulating water pump 15 and a heat exchanger 22 .

[0070] The water flow heat collecting pipe 5 is installed on the second solar thermal collector 2b, and one end is connected to the water inlet of the circulating water pump 15 through the hot water pipe 13; the heat exchanger 22 is installed on the grass placement station, and one end is connected to the water outlet of the circulating water pump 15, and the other end is connected to the other end of the water flow heat collecting pipe 5. The second solar thermal collector 2b heats the circulating water in the water flow heat collecting pipe 5. The heated circulating water passes through the hot water pipe 13 and the circulating water pump 15 and enters the heat exchanger 22 in the storage chamber. It then circulates back from the heat exchanger 22 to the water flow heat collecting pipe 5, thereby forming a complete circulating water heat collecting drying circuit. The heat exchanger 22 can be a tube-fin structure without limitation. The heat exchanger 22 is preferably arranged below the grass, and is used together with the hot air output from the flow equalizing plate 19 to dry the grass.

[0071] The wind-solar hybrid energy-supplying heat-collecting forage drying system designed in this application has the following beneficial effects:

[0072] 1. Utilize the combination of green and renewable solar and wind energy resources, solar thermal, solar photovoltaic, wind power generation, and wind-mechanical energy in a multi-energy complementary comprehensive utilization. The combination of multiple utilization methods ensures efficient, continuous and stable operation of forage drying, which is especially suitable for tropical forage producing areas in the northwest and southern coastal areas, and reduces carbon emissions under the traditional fuel heating and drying mode.

[0073] 2. The drying mode that combines air and circulating water heat collection makes the energy conversion and utilization in the drying system more sufficient compared to the single drying mode design, thereby improving the drying efficiency and the quality of dried forage.

[0074] The above is Example 1 of a solar-wind-solar complementary energy-supply thermal grass drying system provided in the embodiment of the present application. The following is Example 2 of a solar-wind-solar complementary energy-supply thermal grass drying system provided in the embodiment of the present application. Please refer to Figures 1 and 2 for details.

[0075] Based on the solution of the above embodiment 1:

[0076] Furthermore, a tracking bracket 6 capable of tracking light is included. The tracking bracket 6 can be designed or used with reference to existing tracking bracket devices, and will not be described in detail. The tracking bracket 6 can ensure maximum utilization of light, thereby improving photovoltaic power generation and heat collection efficiency.

[0077] The solar photovoltaic panel 1, the first solar thermal collector 2a and the second solar thermal collector 2b are all installed together on the tracking bracket 6, thereby realizing integrated installation. The overall structure is more compact, saving space and additional tracking brackets 6, and reducing costs.

[0078] Furthermore, the hydrothermal drying device 202 includes a first condenser 23. The other end of the heat exchanger 22 is connected to the other end of the water flow heat collection pipe 5 through the first condenser 23. The first condenser 23 is used to cool the water returning to the water flow heat collection pipe 5. By providing the first condenser 23, the water returning to the water flow heat collection pipe 5 can be kept in a liquid state as much as possible. Compared with the case of a mixture of steam and liquid, this has a better heating effect and is more effective in drying the forage.

[0079] Furthermore, there are multiple hay placement stations, and they are divided into two groups along the direction close to or away from the equalizing plate 19; a transport aisle 26 is formed between one group of hay placement stations close to the equalizing plate 19 and another group of hay placement stations away from the equalizing plate 19; the provision of the transport aisle 26 facilitates the transportation and handling of hay. When there are multiple hay placement stations, there are multiple heat exchangers 22, corresponding one to one with the hay placement stations. The input ends of the multiple heat exchangers 22 can be connected to the output end of the circulating water pump 15 through a branch pipe, and the output ends of the multiple heat exchangers 22 can be connected to the water flow heat collection pipe 5 through a branch pipe. Of course, multiple heat exchangers 22 can also be connected end to end, and then the input end of the first heat exchanger 22 is connected to the output end of the circulating water pump 15, and the output end of the last heat exchanger 22 is connected to the water flow heat collection pipe 5. There is no limitation.

[0080] Furthermore, a first hay rack 24 is installed in a one-to-one correspondence at a group of hay placement stations near the equalizing plate 19, and a second hay rack 25 is installed in a one-to-one correspondence at another group of hay placement stations away from the equalizing plate 19. There can be multiple first hay racks 24 and two second hay racks 25, for example, three each, without limitation. The first hay racks 24 and second hay racks 25 can form a specific angle with the equalizing plate 19, which can be less than 90 degrees, 90 degrees, or greater than 90 degrees, without limitation.

[0081] Both the first and second hay racks 24 and 25 are equipped with at least one ventilated shelf for placing hay. The vents on the shelf allow hot air to pass through, effectively drying the hay. In this design, the heat exchanger 22 can be mounted at the bottom of the shelf, allowing the lower layer of hay to dry with hot water while the upper layer is dried with hot air. The shelf can be tilted downward to increase the airflow area over which the hay passes.

[0082] Furthermore, the air heat drying device 201 further includes a filter 3, which is installed at the other end of the air heat collecting pipe 4. The filter 3 is a conventional air filter module that can filter the air entering the air heat collecting pipe 4 to avoid contamination of the forage and improve the quality of the dried forage.

[0083] Furthermore, it also includes a turbulence fan 27, which is an existing wind-driven turbulence fan device and will not be described in detail. The number of turbulence fans 27 can be multiple; the turbulence fan 27 is installed on the top of the drying bin 17, and the fan is driven to rotate under the action of the external airflow, thereby forming a turbulence in the storage chamber, enhancing the heat transfer performance of the hot air drying forage, and improving the drying efficiency.

[0084] Furthermore, a post-processing device 300 is also included.

[0085] The post-processing device 300 includes an exhaust fan 32 , a second condenser 29 , a dust collector 30 , and a dust bag 31 .

[0086] The air inlet of the exhaust fan 32 is connected to the exhaust port 28 on the drying chamber 17, which is connected to the storage chamber, through the dust collector 30. A dust bag 31 is mounted on the dust collector 30. A second condenser 29 is used to cool the air as it is transported from the exhaust port 28 to the dust collector 30. The warm, moist air after heat exchange is discharged from the drying chamber 17 through the exhaust port 28. It is then condensed in the second condenser 29 to remove moisture. After further treatment in the dust collector 30, it is discharged through the cold air duct outlet 33 connected to the output end of the exhaust fan 32. Impurities such as grass clippings and dust are collected by the dust bag 31. The dust collector 30 can be a cyclone dust removal device, without limitation.

[0087] The design of post-processing equipment can reduce the environmental impact and production costs of the drying process.

[0088] Furthermore, the first condenser 23 and the second condenser 29 are both designed as air-cooled condensers, so that the air output through the dust bag 31 can be returned to the cooling medium inlet of the first condenser 23 and the second condenser 29 through the circulation pipe; that is, the dry cold airflow discharged from the cold air pipe outlet 33 is recycled and used for airflow blowing of the first condenser 23 and the second condenser 29, and energy is recovered for circulating cooling, further reducing energy consumption and saving costs.

[0089] Furthermore, in order to realize automatic control, a controller 16 , a temperature sensor 20 and a humidity sensor 21 are also included.

[0090] A water flow valve 14 is installed on the hot water pipe 13, and an air control valve 11 is installed on the hot air pipe 10. A temperature sensor 20 and a humidity sensor 21 are installed in the storage chamber. One end of the hot air pipe 10 is connected to one end of the air control valve 11, and the other end of the air control valve 11 is connected to the blower 12. One end of the hot water pipe 13 is connected to one end of the water flow valve 14, and the other end of the water flow valve 14 is connected to the circulating water pump 15.

[0091] The controller 16 is electrically connected to the battery 9, the water flow valve 14, the wind control valve 11, the temperature sensor 20, and the humidity sensor 21. The controller 16 is also electrically connected to the exhaust fan 32.

[0092] Multiple sets of temperature sensors 20 and humidity sensors 21 can be evenly distributed within the storage chamber, for real-time monitoring of the temperature and humidity within the storage chamber, providing feedback to controller 16. Based on this feedback data, controller 16 controls the opening of air control valve 11 to control the hot air velocity, and the opening of water flow valve 14 to control the hot water flow rate, ensuring the efficiency and quality of forage drying. When the solar thermal energy supply is insufficient, hydrothermal drying device 202 stops operating to conserve energy used for electrically heated water, with air-heat drying device 201 providing the primary heat supply. Controller 16 performs integrated control based on drying temperature and other requirements, enabling more efficient energy conversion and utilization within the drying system, improving drying efficiency and dried forage quality.

[0093] The above is a detailed introduction to the wind-solar complementary energy supply solar thermal forage drying system provided by this application. For those skilled in the art, based on the ideas of the embodiments of this application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on this application.

Claims

1. A heat-collecting type forage drying system with wind-solar hybrid power supply, characterized in that, It includes a drying bin (17), an energy supply device (100), and a drying device (200); The energy supply device (100) includes a solar photovoltaic power generation panel (1), a wind turbine generator set (7), and a storage battery (9); Both the solar photovoltaic power generation panel (1) and the wind turbine generator set (7) are electrically connected to the storage battery (9); The drying device (200) includes an air-heat drying device (201) and a water-heat drying device (202); The air-heat drying device (201) includes a first solar collector (2a), an air collector pipe (4), a blower (12), and a standby electric auxiliary heater (18); A flow equalizing plate (19) is provided inside the drying bin (17); The flow equalizing plate (19) divides the inside of the drying bin (17) into an air inlet chamber and a storage chamber; A forage placement station is provided in the storage chamber; The standby electric auxiliary heater (18) is installed in the air inlet chamber and is used to heat the air passing through the air inlet chamber; The air collector pipe (4) is installed on the first solar collector (2a), and one end is communicated with the air inlet end of the blower (12) through a hot air pipe (10); The air outlet end of the blower (12) is communicated with the air inlet chamber; The water-heat drying device (202) includes a second solar collector (2b), a water flow collector pipe (5), a circulating water pump (15), and a heat exchanger (22); The water flow collector pipe (5) is installed on the second solar collector (2b), and one end is communicated with the water inlet end of the circulating water pump (15) through a hot water pipe (13); The heat exchanger (22) is installed at the forage placement station, and one end is communicated with the water outlet end of the circulating water pump (15), and the other end is communicated with the other end of the water flow collector pipe (5); The water-heat drying device (202) further includes a first condenser (23); The other end of the heat exchanger (22) is communicated with the other end of the water flow collector pipe (5) through the first condenser (23); The first condenser (23) is used to cool the water flowing back to the water flow collector pipe (5); It further includes a post-treatment device (300); The post-treatment device (300) includes an exhaust fan (32), a second condenser (29), a dust collector (30), and a dust collection bag (31); The air inlet end of the exhaust fan (32) is communicated with the air outlet (28) on the drying bin (17) that communicates with the storage chamber through the dust collector (30); The dust collection bag (31) is installed on the dust collector (30); The second condenser (29) is used to cool the air during the process of being transported from the air outlet (28) to the dust collector (30); Both the first condenser (23) and the second condenser (29) are air-cooled condensers; The air output from the dust collection bag (31) is sent back to the cooling medium inlets of the first condenser (23) and the second condenser (29) through a circulation pipe; It further includes a controller (16), a temperature sensor (20), and a humidity sensor (21); A water flow valve (14) is installed on the hot water pipe (13); An air flow control valve (11) is installed on the hot air pipe (10); The temperature sensor (20) and the humidity sensor (21) are installed in the storage chamber; The controller (16) is electrically connected to the storage battery (9), the water flow valve (14), the air flow control valve (11), the temperature sensor (20) and the humidity sensor (21).

2. The heat-collecting type forage drying system with wind-solar hybrid power supply according to claim 1, characterized in that, It further includes a tracking bracket (6) that can track sunlight; The solar photovoltaic power generation panel (1), the first solar collector (2a) and the second solar collector (2b) are installed on the tracking bracket (6).

3. The solar-thermal type forage drying system with wind-solar hybrid power supply according to claim 1, characterized in that, There are multiple forage placement stations, which are divided into two groups along the direction of approaching or departing from the uniform flow plate (19); A transportation aisle (26) is formed between one group of forage placement stations close to the uniform flow plate (19) and the other group of forage placement stations far from the uniform flow plate (19); The number of the heat exchangers (22) is multiple, and they correspond to the forage placement stations one by one.

4. The solar-thermal forage drying system with wind-solar hybrid power supply according to claim 3, wherein A first forage placement rack (24) is correspondingly installed on one group of forage placement stations close to the uniform flow plate (19); A second forage placement rack (25) is correspondingly installed on the other group of forage placement stations far from the uniform flow plate (19); At least one layer of placement plates for placing forage and provided with ventilation holes are arranged on both the first forage placement rack (24) and the second forage placement rack (25); The heat exchanger (22) is installed at the bottom of the placement plate.

5. A heat-collecting type forage drying system with wind-solar hybrid power supply according to claim 1, characterized in that, The air heat drying device (201) further includes a filter (3); The filter (3) is installed at the other end of the air heat collecting pipe (4).

6. The heat-collecting type forage drying system with wind-solar hybrid power supply according to claim 1, characterized in that, It further includes a turbulence fan (27); The turbulence fan (27) is installed at the top of the drying chamber (17) and is used to form turbulence in the storage chamber.

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