An energy-saving device with a grid channel for a granary and its working method

Abstract

The present application discloses a grid channel energy-saving device for a granary and its working method, wherein the energy-saving device includes a plurality of hollow air ducts arranged from bottom to top inside the granary, the bottom end of each hollow air duct is provided with a lifting assembly, and the two sides of the granary are respectively provided with an air inlet assembly and a return air assembly; the output end of the air inlet assembly is connected to the input end of the plurality of hollow air ducts; the end of the hollow air duct facing away from the air inlet assembly is provided with an air outlet; the input end of the return air assembly is connected to the interior of the granary, and the output end of the return air assembly is connected to the air inlet assembly through a pipeline; each hollow air duct forms a "田" (field)-shaped structure, and the grain in the granary is placed in intervals inside the "田"-shaped structure. The present application realizes the storage of grain in the granary in intervals, which can ensure the constant temperature and humidity of the grain stored in each small interval, reduce the occurrence of mold and deterioration in local areas of the grain, and effectively utilize the temperature of the air inside the granary, reducing energy waste.

Description

Technical Field

[0001] The present application relates to the technical field of granaries, and in particular to a grid channel energy-saving device for granaries and a working method thereof. Background Art

[0002] Currently, my country has a wide variety of existing granary models. However, with technological advancements and rising living standards, people's demands for food are becoming increasingly refined. Most existing granaries have high loading heights, which can cause the stored grain to heat up and mold. Maintaining its quality and flavor requires significant manpower and material resources, which increases storage costs, resulting in waste and economic losses. Currently, there is an urgent need for energy-efficient, high-quality grain storage solutions.

[0003] Whether it's corn, wheat, or rice, after harvest, they all contain a certain percentage of moisture. Newly harvested grains are physiologically sensitive and are prone to heat, condensation, mold, and sprouting after storage. Failure to address these issues promptly can result in significant losses. Therefore, prior to storage, grains must be repeatedly aired to reduce moisture content to below the required level. Regular ventilation is also essential after storage to prevent mold.

[0004] However, there are still many pain points in the existing green and energy-saving grain storage. For example, the construction of cellar-type granaries is huge, costly, and has poor moisture-proof effect; the flat warehouse has too much grain in the warehouse, and the temperature inside the warehouse is too high, causing the grain to mold. At the same time, the refrigeration and ventilation equipment installed in the warehouse makes the temperature uneven due to the accumulation of grain, which easily causes the grain to lose moisture, reducing the yield and taste; and a large number of existing outdoor granaries encounter opportunities for ventilation in bad weather, which increases the humidity inside the granary and increases the possibility of corn mold. In addition, external dust can easily enter the granary, causing the stored grain to be contaminated; the problem of grain mold in rural cellars due to constant ventilation is common. In summary, the existing granaries cannot meet actual needs. The traditional cooling and heating method of the existing granaries is the HVAC ventilation system, and the storage method of grain is centralized storage, that is, a large amount of grain is stored in the granary, and the HVAC ventilation system is used to ensure the constant temperature in the granary. However, it can only ensure the constant temperature of the general environment of the granary. Since the centralized storage of grain cannot adjust the temperature and humidity of the local area of the grain, this storage method requires frequent turning and drying of the grain to prevent the local area of the grain from moldy and deteriorating. This method increases the labor intensity of the staff, and if the turning and drying is not timely, it is easy for the local area of the grain to moldy and deteriorate. In addition, the HVAC ventilation system of the existing technology cannot effectively utilize the air inside the granary, resulting in high energy consumption. Summary of the Invention

[0005] The present application provides a grid channel energy-saving device for a granary and a working method thereof, thereby solving the problem in the prior art that the grain in the granary is stored in a centralized manner and adopts a heating, ventilation and air conditioning ventilation system, and the temperature and humidity of the local area of the grain cannot be adjusted. The grain needs to be frequently turned over and aired, which increases the labor intensity of the staff. Moreover, if the turning and airing is not timely, the local area of the grain is likely to mold and deteriorate, and the air inside the granary cannot be effectively utilized, resulting in a large energy consumption. The application realizes the storage of the grain inside the granary in intervals, which can ensure the constant temperature and humidity of the grain stored in each small interval, does not need to be frequently turned over and aired, reduces the mold and deterioration of the local area of the grain, and can effectively utilize the temperature of the air inside the granary, reducing energy waste.

[0006] In the first aspect, the present application provides a grid channel energy-saving device for a granary, comprising a plurality of hollow air ducts arranged from bottom to top inside the granary, a lifting assembly being provided at the bottom end of each of the hollow air ducts, and an air inlet assembly and a return air assembly being provided on both sides of the granary respectively; the input end of the air inlet assembly is connected to the outside, and the output end of the air inlet assembly is connected to the input ends of the plurality of the hollow air ducts, so that gas can be input into the interior of the hollow air duct; an air outlet is provided at the end of the hollow air duct facing away from the air inlet assembly, and the air outlet is connected to the interior of the granary; the input end of the return air assembly is connected to the interior of the granary, and the output end of the return air assembly is connected to a pipeline, and the end of the pipeline facing away from the return air assembly is connected to the input end of the air inlet assembly; the outer side of the hollow air duct is slidably connected to the inner wall of the granary, and each of the hollow air ducts forms a field-shaped structure, and the grain in the granary is placed at intervals inside the field-shaped structure.

[0007] In combination with the first aspect, in a possible implementation, the air intake assembly includes an air source heat pump, an air intake duct, a filter, a heat exchanger, a fan and a first electromagnetic air valve; the air source heat pump is arranged on the outside of the granary, and the output end of the air source heat pump is connected to the input end of the air intake duct; the air intake duct passes through the side wall of the granary, and the filter, the heat exchanger, the fan and the first electromagnetic air valve are arranged in sequence inside the air intake duct from the outside to the inside; the hollow air duct is provided with an air inlet near the end of the air intake duct, and the output end of the air intake duct is respectively connected to the multiple air inlets through multiple hoses; the end of the pipeline facing away from the return air assembly is connected to the input end of the air intake duct.

[0008] In combination with the first aspect, in a possible implementation, the return air assembly includes a first return air duct, a first air suction fan and an insulation layer; the first return air duct is arranged on the side of the granary away from the air inlet assembly, and the first return air duct passes through the side wall of the granary, and the input end of the first return air duct is connected to the interior of the granary; the first air suction fan is arranged inside the first return air duct; the insulation layer is sleeved on the outside of the first return air duct and fixedly connected to the side wall of the granary; the output end of the first return air duct is connected to the input end of the pipeline.

[0009] In combination with the first aspect, in a possible implementation, the pipeline has an S-shaped structure and is buried in the soil on the ground.

[0010] In combination with the first aspect, in a possible implementation, the return air assembly also includes a second return air duct and a second air suction fan; the second return air duct is arranged on the side of the granary close to the air inlet assembly, and the second return air duct passes through the side wall of the granary, and the input end of the second return air duct is connected to the interior of the granary; the second air suction fan is arranged inside the second return air duct; the output end of the second return air duct is connected to the input end of the air inlet assembly.

[0011] In combination with the first aspect, in a possible implementation, a plurality of second electromagnetic air valves are provided inside the hollow air duct.

[0012] In combination with the first aspect, in a possible implementation method, the grid channel energy-saving device for a granary provided by the present application also includes a photovoltaic power generation component and a heat recovery component; the photovoltaic power generation component includes a photovoltaic power generation panel, a voltage stabilizing circuit, a battery, a light sensor and a lifting component; the heat recovery component includes a first phase change material, a first serpentine coil, a first insulation layer, a heat preservation water tank, a second phase change material, a second serpentine coil and a second insulation layer; the photovoltaic power generation panel, the first phase change material, the first serpentine coil and the first insulation layer are arranged in sequence from top to bottom on the roof of the granary; the light sensor is fixedly connected to the photovoltaic power generation panel. The outside of the electric board; the voltage stabilizing circuit and the battery are arranged on the inside of the granary roof, and the battery can supply power to the air inlet assembly, the return air assembly and the lifting assembly; the top of the lifting member is fixedly connected to the end of the first insulation layer, and the bottom end of the lifting member is fixedly connected to the top of the wall of the granary; the second phase change material, the second serpentine coil and the second insulation layer are sequentially arranged on the outside of the wall of the granary from the outside to the inside; the insulated water tank is fixedly connected to the outside of the second phase change material, and a circulation loop is formed between the insulated water tank, the second serpentine coil and the first serpentine coil.

[0013] In combination with the first aspect, in a possible implementation method, the grid channel energy-saving device for a granary provided in the present application also includes a phase change temperature control component; the phase change temperature control component includes a metal foam phase change material, a water coil, a small pump and thermal grease; the water coil is embedded in the metal foam phase change material in an S shape, and the small pump is arranged on the outside of the water coil extending out of the metal foam phase change material; the input end of the water coil is connected to the water outlet of the insulated water tank, and the output end of the water coil is connected to the water inlet of the insulated water tank; the thermal grease is attached to the bottom surface of the metal foam phase change material and is fixedly connected to the top of the granary.

[0014] In combination with the first aspect, in a possible implementation, the grid channel energy-saving device for a granary provided in the present application also includes a control component; the control component includes a controller, a dehumidifier, a nitrogen generator, multiple temperature sensors, multiple air humidity sensors and multiple oxygen concentration sensors; the controller, the dehumidifier and the nitrogen generator are respectively arranged on the inner wall of the granary; multiple air humidity sensors and multiple oxygen concentration sensors are respectively arranged at intervals on the inner wall of the granary; multiple temperature sensors are respectively arranged inside the field-shaped structure of the hollow air duct.

[0015] In a second aspect, the present application provides a working method of a grid channel energy-saving device for a granary, comprising: storing the grain inside the granary in layers and intervals inside the field-shaped structure formed by the hollow air duct; controlling the action of the air intake assembly to introduce air of suitable temperature into the hollow air duct according to the environmental storage requirements inside the granary; the air entering the hollow air duct can ensure that the temperature of the hollow air duct is constant, thereby providing a stable storage environment for the stored grain; the air entering the hollow air duct is eventually discharged into the granary from the end of the hollow air duct away from the air intake assembly, and can again exchange heat with the air inside the granary; at the same time, controlling the action of the return air assembly to continuously extract the air inside the granary again and input it into the input end of the air intake assembly, so that the air inside the granary can continue to be used as the air source of the input end of the air intake assembly to achieve recycling; when the staff needs to store and retrieve grain, controlling the action of the lifting assembly to cause the hollow air duct to perform a lifting movement relative to the inner wall of the granary, thereby facilitating the staff to store and retrieve grain.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0017] In this application, a plurality of hollow air ducts are arranged from bottom to top inside the granary. A lifting component is arranged at the bottom end of each of the hollow air ducts. An air inlet component and an air return component are respectively arranged on both sides of the granary. The input end of the air inlet component is communicated with the outside, and the output end of the air inlet component is communicated with the input ends of the plurality of hollow air ducts, so as to be able to input gas into the inside of the hollow air ducts. An air outlet is arranged at the end of the hollow air duct away from the air inlet component, and the air outlet is communicated with the inside of the granary. Further, the input end of the air return component is communicated with the inside of the granary, and a pipeline is connected to the output end of the air return component, so that the air return component conveys the air inside the granary through the pipeline to the input end of the air inlet component for continued use. Each of the hollow air ducts is formed in a cross-shaped structure, so that the grains in the granary can be placed at intervals inside the cross-shaped structure, avoiding the situation of concentrated storage of grains in the prior art. By inputting air with a constant temperature into the hollow air ducts through the air inlet component, a constant temperature and humidity environment can be provided for the grains stored in small intervals in the cross-shaped structure, reducing the situation of mildew and deterioration in local areas of the grains. At the same time, through the setting of the air return component and the pipeline, the air with the temperature of the large environment inside the granary can be conveyed to the input end of the air inlet component and then enter the hollow air ducts for continued use, reducing the air cooling and heating load inside the granary and effectively reducing the waste of energy.

[0018] It effectively solves the technical problems in the prior art that the grains in the granary are stored concentratedly and a heating, ventilation and air conditioning (HVAC) ventilation system is adopted, which cannot adjust the temperature and humidity of local areas of the grains, and it is necessary to often turn over and dry the grains, increasing the labor intensity of the staff. Moreover, if the turning over and drying are not timely, it is easy to cause mildew and deterioration in local areas of the grains, and the air inside the granary cannot be effectively utilized, resulting in large energy consumption. It realizes that the grains inside the granary are stored at intervals, can ensure the constancy of the temperature and humidity of the grains stored in each small interval, does not need to be often turned over and dried, reduces the situation of mildew and deterioration in local areas of the grains, and at the same time can effectively utilize the temperature of the air inside the granary, reducing the waste of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present invention or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0020] Figure 1 It is a front view structural schematic diagram of an energy-saving device with a grid channel for a granary provided by an embodiment of the present application;

[0021] Figure 2Schematic top view structure diagram of an energy-saving device with a grid channel for a granary after removing the granary roof provided by an embodiment of the present application;

[0022] Figure 3 Schematic structure diagram of an air inlet component provided by an embodiment of the present application;

[0023] Figure 4 For Figure 1 Partial enlarged view of area A in

[0024] Figure 5 For Figure 1 Partial enlarged view of area B in

[0025] Figure 6 For Figure 1 Partial enlarged view of area C in

[0026] Figure 7 For Figure 2 Partial enlarged view of area D in

[0027] Figure 8 For Figure 2 Partial enlarged view of area E in

[0028] Figure 9 Isometric view I of a hollow air duct provided by an embodiment of the present application;

[0029] Figure 10 Isometric view II of a hollow air duct provided by an embodiment of the present application;

[0030] Figure 11 Schematic diagram of S-shaped burial of a pipeline provided by an embodiment of the present application.

[0031] Reference numerals: 1 - grain bin; 11 - slide rail; 2 - hollow air duct; 21 - air outlet; 22 - air inlet; 221 - hose; 23 - second electromagnetic air valve; 24 - pulley; 3 - lifting assembly; 31 - shape memory alloy; 32 - electric heating sheet; 4 - air inlet assembly; 41 - air source heat pump; 42 - air inlet duct; 43 - filter; 44 - heat exchanger; 45 - fan; 46 - first electromagnetic air valve; 5 - return air assembly; 51 - first return air duct; 52 - first air suction machine; 53 - thermal insulation layer; 54 - second return air duct; 55 - second air suction machine; 6 - pipeline; 7 - photovoltaic power generation assembly; 71 - photovoltaic panel; 72 - voltage stabilizing circuit; 73 - storage battery; 74 - light sensor; 75 - lifting member; 8 - heat recovery assembly; 81 - first phase change material; 82 - first serpentine coil; 83 - first thermal insulation layer; 84 - heat preservation water tank; 85 - second phase change material; 86 - second serpentine coil; 87 - second thermal insulation layer; 9 - phase change temperature control assembly; 91 - metal foam phase change material; 92 - water coil; 93 - small pump; 94 - thermal conductive silicone grease; 10 - control assembly; 101 - controller; 102 - dehumidifier; 103 - nitrogen generator; 104 - temperature sensor; 105 - air humidity sensor; 106 - oxygen concentration sensor. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0034] Reference Figures 1-4, 7, 9 - 10, An energy-saving device for a grid channel in a granary provided by an embodiment of the present application includes a plurality of hollow air ducts 2 arranged in the granary 1 from bottom to top. A lifting component 3 is provided at the bottom end of each hollow air duct 2. An air inlet component 4 and an air return component 5 are respectively arranged on both sides of the granary 1; the input end of the air inlet component 4 is communicated with the outside, and the output end of the air inlet component 4 is communicated with the input ends of the plurality of hollow air ducts 2, capable of inputting gas into the interior of the hollow air ducts 2; an air outlet 21 is provided at the end of the hollow air duct 2 away from the air inlet component 4, and the air outlet 21 is communicated with the interior of the granary 1; the input end of the air return component 5 is communicated with the interior of the granary 1, and the output end of the air return component 5 is connected to a pipeline 6, and the end of the pipeline 6 away from the air return component 5 is connected to the input end of the air inlet component 4; the outside of the hollow air duct 2 is slidably connected to the inner wall of the granary 1, and each hollow air duct 2 forms a cross-shaped structure, and the grains in the granary 1 are placed at intervals inside the cross-shaped structure.In the embodiment of the present application, the number of the hollow air ducts 2 is determined according to the number of layers of the stored grain in the granary 1. That is, for each layer of grain stored in the granary 1, each hollow air duct 2 divides it into multiple small compartments for spaced storage. The hollow air duct 2 is both the space for spaced storage of grain and the condition for maintaining a constant temperature during grain storage. That is, by controlling the air inlet assembly 4 to input air at a set temperature into the hollow air duct 2, the temperature of the small compartments storing grain can be kept constant. The air in the hollow air duct 2 after providing a constant temperature for the grain can finally be discharged into the granary 1, and then heat exchange can be carried out with the air inside the granary 1 again, reducing the cold and heat load of the air inside the granary 1. Finally, the air inside the granary 1 can be drawn back to the input end of the air inlet assembly 4 through the air return assembly 5, and then can continue to enter the hollow air duct 2 for continued use, effectively reducing energy waste. A plurality of pulleys 24 are arranged on the outer side of the hollow air duct 2, and a plurality of slide rails 11 are arranged on the inner side of the granary 1 from bottom to top; the pulleys 24 are in rolling connection with the slide rails 11; the lifting assembly 3 includes a shape memory alloy 31 and an electric heating sheet 32; the fixed end of the shape memory alloy 31 is fixedly connected to the inner wall of the granary 1, and the free end of the shape memory alloy 31 is fixedly connected to the bottom end of the hollow air duct 2; the electric heating sheet 32 is inserted into the inner void of the shape memory alloy 31 and can heat the shape memory alloy 31; the shape memory alloy 31 has an extended state at high temperature and a retracted state at normal temperature. In the embodiment of the present application, the shape memory alloy 31 is presented in an L shape in the high-temperature extended state and in a folded L shape at normal temperature. When the staff needs to open the granary 1 of the small compartment to take or store grain, the electric heating sheet 32 can be controlled to be energized, so as to heat the shape memory alloy 31, and then the free end of the shape memory alloy 31 extends and stands up to form an L-shaped structure, pushing the hollow air duct 2 upward. Then, the hollow air duct 2 is smoothly lifted under the cooperation of the pulleys 24 and the slide rails 11. After the staff finishes taking or storing grain, the electric heating sheet 32 is controlled to be powered off, and the temperature of the shape memory alloy 31 decreases. Finally, its free end drops to present a folded L shape, and the hollow air duct 2 drops under the action of gravity, so that the granary 1 of the small compartment is automatically closed.

[0035] Refer to Figures 1-3, 11. The air inlet assembly 4 includes an air source heat pump 41, an air inlet duct 42, a filter 43, a heat exchanger 44, a fan 45 and a first electromagnetic air valve 46. The air source heat pump 41 is arranged outside the granary 1, and the output end of the air source heat pump 41 is communicated with the input end of the air inlet duct 42. The air inlet duct 42 penetrates through the side wall of the granary 1. The filter 43, the heat exchanger 44, the fan 45 and the first electromagnetic air valve 46 are sequentially arranged inside the air inlet duct 42 from outside to inside. An air inlet 22 is arranged at the end of the hollow air duct 2 close to the air inlet duct 42, and the output end of the air inlet duct 42 is communicated with a plurality of air inlets 22 through a plurality of hoses 221 respectively. The end of the pipeline 6 away from the air return assembly 5 is communicated with the input end of the air inlet duct 42. The air return assembly 5 includes a first air return duct 51, a first air suction machine 52 and a heat preservation layer 53. The first air return duct 51 is arranged on the side of the granary 1 away from the air inlet assembly 4, and the first air return duct 51 penetrates through the side wall of the granary 1. The input end of the first air return duct 51 is communicated with the inside of the granary 1. The first air suction machine 52 is arranged inside the first air return duct 51. The heat preservation layer 53 is sleeved outside the first air return duct 51 and fixedly connected with the side wall of the granary 1. The output end of the first air return duct 51 is communicated with the input end of the pipeline 6. The pipeline 6 is in an S-shaped structure and is buried in the soil on the ground. In the embodiment of the present application, when the granary 1 stores grains in summer, the air source heat pump 41, the fan 45 and the first electromagnetic air valve 46 are turned on. The air source heat pump 41 cools the air inlet passage, and the fan 45 is used to send the cold air through the filter 43, the heat exchanger 44 and the first electromagnetic air valve 46 and finally enter the hollow air duct 2 through the hose 221 and the air inlet 22 to surround the grains in the small compartment, so as to ensure the constancy of the grain environment temperature in the small compartment. The air after passing through the hollow air duct 2 is discharged into the large environment inside the granary 1 from the air outlet 21. When the granary 1 stores grains in winter, the air source heat pump 41 heats the air inlet duct 42, so that the temperature of the air entering the hollow air duct 2 rises, and the grain environment temperature in the small compartment is maintained at about 15°C. Further, the pipeline 6 is buried in the soil in an S-shaped manner, so that the air return assembly 5 transports the air in the large environment of the granary 1 to the input end of the air inlet duct 42 through the pipeline 6. The temperature of the air extracted from the large environment of the granary 1 is higher than that of the outside air, reducing the cold and heat load of the air inside the granary 1. At the same time, when passing through the pipeline 6, it can absorb the heat in the soil and make it be utilized by the air inlet duct 42 again, further reducing the heating load of the air inlet duct 42 and the air source heat pump 41. The air inlet duct 42 is a metal square member and can be made of aluminum profiles.

[0036] Refer to Figures 1-2, the return air assembly 5 further includes a second return air duct 54 and a second air suction machine 55; the second return air duct 54 is arranged on one side of the granary 1 close to the air inlet assembly 4, and the second return air duct 54 penetrates through the side wall of the granary 1, and the input end of the second return air duct 54 is communicated with the inside of the granary 1; the second air suction machine 55 is arranged inside the second return air duct 54; the output end of the second return air duct 54 is communicated with the input end of the air inlet assembly 4. In the embodiment of the present application, when the staff conducts inspections, if it is predicted in advance that the indoor air temperature in the large environment of the granary 1 is lower than the intermediate value of the inlet and outlet temperatures of the first return air duct 51, the second return air duct 54 is selected for direct return air, and in other cases, the first return air duct 51 is followed for return air, so as to achieve the purpose of saving energy costs and improving efficiency. Specifically, the advance prediction can be realized by arranging temperature sensors in the granary 1 and at the inlet and outlet of the first return air duct 51.

[0037] Refer to Figure 2 , a plurality of second electromagnetic air valves 23 are arranged inside the hollow air duct 2. In the embodiment of the present application, a plurality of second electromagnetic air valves 23 are further arranged inside the hollow channel, and the second electromagnetic air valves 23 can be controlled to open to blow air to the grains according to the demand for storing grains in the small compartments. If the grains stored in the granary 1 are corn kernels, especially when the moisture content of the corn kernels is very high just after being stored, the second electromagnetic air valves 23 need to be opened for air drying treatment; if the stored grains are rice, the second electromagnetic air valves 23 need to be closed to avoid direct blowing of air to ensure the moisture in the rice; if the stored grains are cereals, the cooling of the cereals requires opening the second electromagnetic air valves 23 for blowing treatment and cooling treatment in combination with the cold wall formed by the hollow air duct 2. The blowing should be gentle, the flow rate should be reduced, and the flow resistance should be reduced. The blowing intensity and flow rate can be ensured by controlling the flow rate of the second electromagnetic air valves 23 to ensure that the grains are in the best storage environment in the small compartments.

[0038] Refer to Figure 1 , 6, an energy-saving device for a grid channel in a granary provided by an embodiment of the present application further includes a photovoltaic power generation component 7 and a heat recovery component 8; the photovoltaic power generation component 7 includes a photovoltaic panel 71, a voltage stabilizing circuit 72, a storage battery 73, a light sensor 74 and a lifting member 75; the heat recovery component 8 includes a first phase change material 81, a first serpentine coil 82, a first heat insulation layer 83, a heat preservation water tank 84, a second phase change material 85, a second serpentine coil 86 and a second heat insulation layer 87; the photovoltaic panel 71, the first phase change material 81, the first serpentine coil 82 and the first heat insulation layer 83 are arranged on the roof of the granary 1 from top to bottom in sequence; the light sensor 74 is fixedly connected to the outside of the photovoltaic panel 71; the voltage stabilizing circuit 72 and the storage battery 73 are arranged inside the roof of the granary 1, and the storage battery 73 can supply power to the air inlet component 4, the air return component 5 and the lifting component 3; the top end of the lifting member 75 is fixedly connected to the end of the first heat insulation layer 83, and the bottom end of the lifting member 75 is fixedly connected to the top end of the wall of the granary 1; the second phase change material 85, the second serpentine coil 86 and the second heat insulation layer 87 are arranged on the outside of the wall of the granary 1 from outside to inside in sequence; the heat preservation water tank 84 is fixedly connected to the outside of the second phase change material 85, and a circulation loop is formed among the heat preservation water tank 84, the second serpentine coil 86 and the first serpentine coil 82.In the embodiment of the present application, a photovoltaic power generation component 7 is further provided, wherein the photovoltaic panel 71 and the storage battery 73 are connected through a voltage stabilizing circuit 72. The purpose is to make full use of the solar energy received by the granary 1 and use the electric energy generated by the solar energy for the air inlet component 4, the air return component 5 and the lifting component 3, so as to reduce the energy consumption of the granary 1. At the same time, by setting a heat recovery component 8, that is, setting a first phase change material 81 capable of absorbing and storing the heat generated by the photovoltaic panel 71, setting a second phase change material 85 capable of absorbing and storing the heat generated by the sunlight received outside the wall of the granary 1, and setting a first serpentine coil 82, a second serpentine coil 86 and a heat preservation water tank 84 at the same time, so that the heat absorbed and stored by the first phase change material 81 and the second phase change material 85 is respectively used to heat the water in the first serpentine coil 82 and the second serpentine coil 86, and finally the heated water is circulated to the heat preservation water tank 84 for external personnel to use water, further saving energy; in the embodiment of the present application, a lifting member 75 is provided, and the lifting member 75 is selected from a hydraulic cylinder or a lifting motor. The end of the photovoltaic panel 71, the first phase change material 81, the first serpentine coil 82 and the first heat insulation layer 83 close to the center of the roof of the granary 1 is rotatably connected to the roof. By controlling the lifting of the lifting member 75, one end of the whole of the first heat insulation layer 83, the first serpentine coil 82, the first phase change material 81 and the photovoltaic panel 71 is jacked up, so that the photovoltaic panel 71 rotates upward relative to the roof of the granary 1, and finally the installation angle of the photovoltaic panel 71 is adjusted to improve the power generation efficiency of the photovoltaic panel 71, which is realized by detecting the illumination angle through a light sensor 74 and then controlling the lifting member 75 to perform a lifting action; the first phase change material 81 and the second phase change material 85 are foam metal phase change materials, specifically copper foam - paraffin wax with a phase change temperature of ℃.

[0039] Refer to Figure 1 , 5, 6. An energy-saving device for a grid channel in a granary provided by an embodiment of the present application further includes a phase change temperature control component 9; the phase change temperature control component 9 includes a metal foam phase change material 91, a water coil 92, a small pump 93, and a thermal conductive silicone grease 94; the water coil 92 is embedded in the metal foam phase change material 91 in an S shape, and the small pump 93 is arranged outside the metal foam phase change material 91 where the water coil 92 extends; the input end of the water coil 92 is communicated with the water outlet of the heat preservation water tank 84, and the output end of the water coil 92 is communicated with the water inlet of the heat preservation water tank 84; the thermal conductive silicone grease 94 is attached to the bottom surface of the metal foam phase change material 91 and fixedly connected to the top of the granary 1. In the embodiment of the present application, the phase change temperature control component 9 is further provided, and the heat is absorbed or released through the phase change of the metal foam phase change material 91, and then the heat is conducted through the thermal conductive silicone grease 94, so as to realize the regulation of the indoor environmental temperature. The water coil 92 provided therein is communicated with the heat preservation water tank 84, and the heat in the metal foam phase change material 91 can be used to heat the water in the water coil 92, so that the water can be circulated to the heat preservation water tank 84.

[0040] Refer to Figure 2 , 8 , an energy-saving device for a grid channel in a granary provided by an embodiment of the present application further includes a control component 10; the control component 10 includes a controller 101, a dehumidifier 102, a nitrogen generator 103, a plurality of temperature sensors 104, a plurality of air humidity sensors 105, and a plurality of oxygen concentration sensors 106; the controller 101, the dehumidifier 102, and the nitrogen generator 103 are respectively arranged on the inner wall of the granary 1; the plurality of air humidity sensors 105 and the plurality of oxygen concentration sensors 106 are respectively arranged at intervals on the inner wall of the granary 1; the plurality of temperature sensors 104 are respectively arranged inside the cross-shaped structure of the hollow air duct 2. In the embodiment of the present application, the control component 10 is further provided, which can accurately and real-time monitor the air humidity, oxygen concentration and the temperature of the local environment in the small compartments inside the granary 1 through the provided temperature sensors 104, air humidity sensors 105 and oxygen concentration sensors 106. Furthermore, through the controller 101, various data can be collected and analyzed to control the respective operations of the air inlet component 4 and the air return component 5, so as to ensure that the temperature and humidity of the environment for storing grain in the granary 1 are kept constant; in addition, the dehumidifier 102 is further provided, which can perform dehumidification treatment when the air humidity in the granary 1 is relatively high. The nitrogen generator 103 is provided to release the generated nitrogen into the granary 1, thereby reducing the drug resistance of stored grain pests and maintaining the storage quality of grain; in addition, a plurality of nitrogen concentration sensors can be provided for detecting data to detect the storage effect of grain and know the appropriate time for staff inspection.

[0041] The embodiment of the present application provides a working method of a grid channel energy-saving device for a granary, comprising: storing the grain inside the granary 1 in layers and intervals inside a field-shaped structure formed by a hollow air duct 2; controlling the action of the air inlet component 4 according to the environmental storage requirements inside the granary 1 to introduce air of suitable temperature into the hollow air duct 2; the air entering the hollow air duct 2 can ensure that the temperature of the hollow air duct 2 is constant, thereby providing a stable storage environment for the stored grain; the air entering the hollow air duct 2 is eventually discharged from the end of the hollow air duct 2 away from the air inlet component 4 to the inside of the granary 1, and can again exchange heat with the air inside the granary 1; at the same time, controlling the action of the return air component 5 to continuously extract the air inside the granary 1 again and input it into the input end of the air inlet component 4, so that the air inside the granary 1 can continue to be used as the air source of the input end of the air inlet component 4, thereby realizing recycling; when the staff needs to store and retrieve grain, controlling the action of the lifting component 3 to cause the hollow air duct 2 to move up and down relative to the inner wall of the granary 1, thereby facilitating the staff to store and retrieve grain.In the embodiments of the present application, specifically, when storing grains in the granary 1 in summer, instructions are issued based on the information transmitted by multiple temperature sensors 104, air humidity sensors 105, and oxygen concentration sensors 106, so that the controller 101 controls the rotation speed of the fan 45 and controls the opening of the air source heat pump 41 and the first electromagnetic air valve 46, enabling the air source heat pump 41 to cool the air inlet passage and using the fan 45 and the hose 221 to send cold air into the hollow air duct 2 to surround the grains in the small compartments, thereby ensuring the constancy of the ambient temperature of the grains in the small compartments. The air after passing through the hollow air duct 2 is discharged from the air outlet 21 into the large environment inside the granary 1. The temperature of the large environment inside the granary 1 is lower than the outdoor temperature. Thus, through the return air assembly 5, the air in the large environment inside the granary 1 is extracted through the pipeline 6 to the input end of the air inlet assembly 4 and used as the reused air cold source for the fan 45. Among them, the air passing through the pipeline 6 can absorb the cold source underground in the soil in summer, further reducing the temperature of the reused air, and ultimately reducing the refrigeration load of the air source heat pump 41 and the air inlet pipeline 42; when storing grains in the granary 1 in winter, instructions are issued based on the information transmitted by multiple temperature sensors 104, air humidity sensors 105, and oxygen concentration sensors 106, so that the controller 101 controls the rotation speed of the fan 45 and controls the opening of the air source heat pump 41 and the first electromagnetic air valve 46, enabling the air source heat pump 41 to heat the air inlet passage and using the fan 45 and the hose 221 to send hot air into the hollow air duct 2 to surround the grains in the small compartments, thereby ensuring the constancy of the ambient temperature of the grains in the small compartments. The air after passing through the hollow air duct 2 is discharged from the air outlet 21 into the large environment inside the granary 1. The temperature of the large environment inside the granary 1 is higher than the outdoor temperature. Thus, through the return air assembly 5, the air in the large environment inside the granary 1 is extracted through the pipeline 6 to the input end of the air inlet assembly 4 and used as the reused air heat source for the fan 45. Among them, the air passing through the pipeline 6 can absorb the heat source underground in the soil in winter, further increasing the temperature of the reused air, and ultimately reducing the heating load of the air source heat pump 41 and the air inlet pipeline 42.

[0042] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An energy-saving device for the grid channel of a granary, characterized in that, It includes a plurality of hollow air ducts (2) arranged from bottom to top inside the granary (1), and a lifting component (3) is provided at the bottom end of each of the hollow air ducts (2). An air inlet component (4) and a return air component (5) are respectively arranged on both sides of the granary (1); The input end of the air inlet component (4) is communicated with the outside, and the output end of the air inlet component (4) is communicated with the input ends of the plurality of hollow air ducts (2), capable of inputting gas into the inside of the hollow air ducts (2); An air outlet (21) is provided at the end of the hollow air duct (2) facing away from the air inlet component (4), and the air outlet (21) is communicated with the inside of the granary (1); The input end of the return air component (5) is communicated with the inside of the granary (1), the output end of the return air component (5) is connected with a pipeline (6), and the end of the pipeline (6) facing away from the return air component (5) is connected with the input end of the air inlet component (4); The outer side of the hollow air duct (2) is slidably connected with the inner wall of the granary (1). Each of the hollow air ducts (2) forms a gridiron structure, and the grains in the granary (1) are placed at intervals inside the gridiron structure; The air inlet component (4) includes an air source heat pump (41), an air inlet pipeline (42), a filter (43), a heat exchanger (44), a fan (45) and a first electromagnetic air valve (46); The air source heat pump (41) is arranged outside the granary (1), and the output end of the air source heat pump (41) is communicated with the input end of the air inlet pipeline (42); The air inlet pipeline (42) penetrates through the side wall of the granary (1), and the filter (43), the heat exchanger (44), the fan (45) and the first electromagnetic air valve (46) are sequentially arranged inside the air inlet pipeline (42) from outside to inside; An air inlet (22) is provided at the end of the hollow air duct (2) close to the air inlet pipeline (42), and the output end of the air inlet pipeline (42) is communicated with the plurality of air inlets (22) respectively through a plurality of hoses (221); The end of the pipeline (6) facing away from the return air component (5) is communicated with the input end of the air inlet pipeline (42); The return air component (5) includes a first return air pipeline (51), a first air suction machine (52) and a heat preservation layer (53); The first return air pipeline (51) is arranged on the side of the granary (1) facing away from the air inlet component (4), and the first return air pipeline (51) penetrates through the side wall of the granary (1). The input end of the first return air pipeline (51) is communicated with the inside of the granary (1); The first air suction machine (52) is arranged inside the first return air pipeline (51); The heat preservation layer (53) is sleeved outside the first return air pipeline (51) and fixedly connected with the side wall of the granary (1); The output end of the first return air pipeline (51) is communicated with the input end of the pipeline (6); The return air component (5) further includes a second return air pipeline (54) and a second air suction machine (55); The second return air duct (54) is arranged on one side of the grain bin (1) close to the air inlet assembly (4), and the second return air duct (54) penetrates through the side wall of the grain bin (1). The input end of the second return air duct (54) is communicated with the inside of the grain bin (1); The second suction machine (55) is arranged inside the second return air duct (54); The output end of the second return air duct (54) is communicated with the input end of the air inlet assembly (4).

2. The energy-saving device with grid channels for a granary according to claim 1, characterized in that, The pipeline (6) is in an S-shaped structure and is buried in the soil on the ground.

3. The energy-saving device for the grid channel in the granary according to claim 1, wherein, A plurality of second electromagnetic air valves (23) are arranged inside the hollow air duct (2).

4. The energy-saving device for the grid channel in the granary according to claim 1, characterized in that It further includes a photovoltaic power generation component (7) and a heat recovery component (8); The photovoltaic power generation component (7) includes a photovoltaic panel (71), a voltage stabilizing circuit (72), a storage battery (73), a light sensor (74) and a lifting member (75); The heat recovery component (8) includes a first phase change material (81), a first serpentine coil (82), a first heat insulation layer (83), a heat preservation water tank (84), a second phase change material (85), a second serpentine coil (86) and a second heat insulation layer (87); The photovoltaic panel (71), the first phase change material (81), the first serpentine coil (82) and the first heat insulation layer (83) are arranged on the roof of the grain bin (1) from top to bottom in sequence; The light sensor (74) is fixedly connected to the outside of the photovoltaic panel (71); The voltage stabilizing circuit (72) and the storage battery (73) are arranged inside the roof of the grain bin (1), and the storage battery (73) can supply power to the air inlet assembly (4), the return air assembly (5) and the lifting assembly (3); The top end of the lifting member (75) is fixedly connected to the end of the first heat insulation layer (83), and the bottom end of the lifting member (75) is fixedly connected to the top end of the wall of the grain bin (1); The second phase change material (85), the second serpentine coil (86) and the second heat insulation layer (87) are arranged on the outside of the wall of the grain bin (1) from outside to inside in sequence; The heat preservation water tank (84) is fixedly connected to the outside of the second phase change material (85), and a circulation loop is formed among the heat preservation water tank (84), the second serpentine coil (86) and the first serpentine coil (82).

5. The energy-saving device for the grid channel in the granary according to claim 4, characterized in that, It further includes a phase change temperature control component (9); The phase change temperature control component (9) includes a metal foam phase change material (91), a water coil (92), a small pump (93) and a thermal conductive silicone grease (94); The water coil (92) is embedded in the metal foam phase change material (91) in an S shape, and the small pump (93) is arranged outside the metal foam phase change material (91) where the water coil (92) extends out; The input end of the water coil (92) is communicated with the water outlet of the heat preservation water tank (84), and the output end of the water coil (92) is communicated with the water inlet of the heat preservation water tank (84); The thermal conductive silicone grease (94) is attached to the bottom surface of the metal foam phase change material (91) and is fixedly connected to the top of the grain bin (1).

6. The energy-saving device for the grid channel in the granary according to claim 1, characterized in that, Also included is a control assembly (10); The control component (10) includes a controller (101), a dehumidifier (102), a nitrogen generator (103), a plurality of temperature sensors (104), a plurality of air humidity sensors (105), and a plurality of oxygen concentration sensors (106); The controller (101), the dehumidifier (102), and the nitrogen generator (103) are respectively arranged on the inner wall of the granary (1); A plurality of the air humidity sensors (105) and a plurality of the oxygen concentration sensors (106) are respectively arranged at intervals on the inner wall of the granary (1); The plurality of temperature sensors (104) are respectively arranged inside the field-shaped structure of the hollow air duct (2).

7. A working method of an energy-saving device for a grid channel in a granary, based on the energy-saving device for a grid channel in a granary according to any one of claims 1-6, characterized in that, include: The grain inside the granary (1) is stored in layers and intervals inside the field-shaped structure formed by the hollow air duct (2); According to the environmental storage requirements inside the granary (1), the air inlet assembly (4) is controlled to operate so as to introduce air of a suitable temperature into the hollow air duct (2); The air entering the hollow air duct (2) can ensure that the temperature of the hollow air duct (2) is constant, thereby providing a stable storage environment for the stored grain; The air entering the hollow air duct (2) is eventually discharged from the end of the hollow air duct (2) facing away from the air inlet assembly (4) into the interior of the granary (1), and can again exchange heat with the air inside the granary (1); At the same time, the return air component (5) is controlled to operate, and the air inside the granary (1) is continuously extracted again and input to the input end of the air inlet component (4), so that the air inside the granary (1) can be used again as an air source for the input end of the air inlet component (4), thereby realizing recycling; When a worker needs to store or retrieve grain, the lifting assembly (3) is controlled to move, causing the hollow air duct (2) to perform a lifting movement relative to the inner wall of the granary (1), thereby facilitating the worker's work of storing or retrieving grain.

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