Alfalfa bale drying apparatus fueled by hydrogen

Abstract

The utility model discloses a kind of alfalfa whole bale drying equipment with hydrogen as fuel, including hydrogen storage tank, hydrogen gas is stored in hydrogen storage tank inside;Combustion furnace is located in the process downstream of hydrogen storage tank, and combustion furnace is communicated with hydrogen storage tank by gas pipe to receive hydrogen and burn in combustion furnace;The process downstream end of combustion furnace is connected with air supply component, and air supply component receives hot air of combustion furnace and is transported to the main air inlet pipe of alfalfa whole bale drying equipment.The equipment of the utility model uses hydrogen as energy, and only produces water by burning, without pollutant emission brought by traditional fossil energy combustion, with good environmental protection performance, in line with green development concept, and hydrogen source is wide, can be prepared using renewable energy, to ensure stable energy supply.

Description

Technical Field

[0001] This utility model relates to the field of alfalfa drying equipment technology, and in particular to a whole-bundle drying equipment for alfalfa using hydrogen as fuel. Background Technology

[0002] With the booming development of animal husbandry, the demand for alfalfa, as a high-quality forage, is increasing daily, and the requirements for its quality are becoming increasingly stringent. Alfalfa has a high moisture content after harvesting, and if it is not dried in a timely and effective manner, it is very prone to mold and rot, resulting in the loss of nutrients, reducing its feed value, and increasing storage and transportation costs. Therefore, efficient drying equipment is the key to the development of the alfalfa industry.

[0003] However, traditional alfalfa drying equipment has significant shortcomings. In terms of energy, it relies heavily on traditional fossil fuels such as coal and natural gas. Coal combustion releases large amounts of sulfur dioxide, nitrogen oxides, and dust, severely polluting the environment; while natural gas is relatively scarce, it is non-renewable and its price fluctuates greatly, with limited supply. At the same time, traditional energy sources have low combustion efficiency and significant heat loss, resulting in energy waste and high drying costs.

[0004] Traditional equipment also falls short in terms of drying effectiveness. Natural air drying is greatly affected by the weather; during rainy and humid weather, the drying time is significantly prolonged, even leading to problems with alfalfa weaving. Simple drying rooms suffer from uneven hot air distribution, resulting in inconsistent drying levels of alfalfa, with some areas prone to over-drying or under-drying. It is difficult to precisely control temperature and time, and thus cannot meet the drying requirements of different varieties and moisture contents of alfalfa.

[0005] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a whole-bundle drying device for alfalfa using hydrogen as fuel. Utility Model Content

[0006] The purpose of this invention is to provide a drying device for alfalfa bales using hydrogen as fuel. Hydrogen is a clean energy source with significant advantages. The combustion product of hydrogen is only water, which is pollution-free and meets environmental protection requirements. It has a high calorific value and can provide sufficient heat for drying. Hydrogen is widely available and can be produced in various ways. It can also be produced using renewable energy sources, thus achieving sustainable energy utilization.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model discloses a whole-bundle drying equipment for alfalfa that uses hydrogen as fuel. The main air inlet pipe of the whole-bundle drying equipment is connected to a hot air supply system, which uses hydrogen as an energy source.

[0009] The hot air supply system includes:

[0010] A hydrogen storage tank, wherein hydrogen is stored inside the hydrogen storage tank;

[0011] A combustion furnace located downstream of the hydrogen storage tank process is connected to the hydrogen storage tank via a gas supply pipe to receive hydrogen and burn it in the combustion furnace.

[0012] The downstream end of the combustion furnace is connected to an air supply assembly, which receives the hot air from the combustion furnace and delivers it to the main air inlet pipe of the alfalfa bale drying equipment.

[0013] Furthermore, the upper end of the alfalfa whole bale drying equipment has the main air inlet pipe, and multiple air needles extending vertically are connected to the main air inlet pipe, and multiple air holes are evenly distributed on the surface of the air needles.

[0014] The hot air delivered by the air supply assembly passes through the main air inlet pipe and the air needle, and is then discharged through the air hole.

[0015] Furthermore, a valve is installed on the gas delivery pipe of the hydrogen storage tank to control the opening and closing of the gas delivery pipe.

[0016] Furthermore, the furnace wall of the combustion furnace is provided with ventilation holes;

[0017] The gas supply pipe is connected to the combustion furnace through a hydrogen delivery pump in the spark plug ignition device. The hydrogen delivery pump supplies hydrogen to the spark plug ignition device and ignites the hydrogen in the combustion furnace through the spark plug ignition device.

[0018] Furthermore, the air supply assembly includes:

[0019] The hot air duct connected to the combustion furnace; and

[0020] A flexible air duct connected to the main air inlet pipe of the alfalfa bale drying equipment;

[0021] The hot air duct is connected to the air inlet of the blower, and the air outlet of the blower is connected to the flexible air duct through the air channel. The hot air in the combustion furnace is transported to the flexible air duct by the blower through the hot air duct.

[0022] Furthermore, the blower is driven by an electric motor.

[0023] Furthermore, the outer layer of the flexible air duct is made of high-temperature resistant fiberglass fabric, and the inner layer of the flexible air duct is made of silicone or fluororubber coating.

[0024] An elastic reinforcing rib structure is provided between the outer and inner layers of the flexible air duct.

[0025] Furthermore, the inner layer of the hydrogen storage tank is a metal liner, and the outer layer of the metal liner is provided with a composite material winding layer.

[0026] Furthermore, the composite material winding layer is made of carbon fiber reinforced epoxy resin.

[0027] Furthermore, the elastic reinforcing rib structure is made of stainless steel wire with a diameter of 2mm, and the stainless steel wire is wound in a spiral manner. The length of the flexible air duct is 3000mm and the diameter is 300mm.

[0028] In the above technical solution, the alfalfa bale drying equipment using hydrogen as fuel provided by this utility model has the following beneficial effects:

[0029] The device of this invention uses hydrogen as an energy source, and combustion produces only water. It does not produce pollutants like those from traditional fossil fuel combustion, has excellent environmental performance, and is in line with the concept of green development. Moreover, hydrogen is widely available and can be produced using renewable energy sources, ensuring a stable energy supply.

[0030] This utility model of alfalfa whole bale drying equipment adopts an internal forced alfalfa drying device. The hot airflow can penetrate deep into the interior of the alfalfa bale, so that the moisture evaporates quickly and evenly, greatly shortening the drying time, improving the drying efficiency, and ensuring that the alfalfa is dried evenly, retaining the nutrients to the greatest extent and improving the feed value. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0032] Figure 1 This is a schematic diagram of the structure of a hydrogen-fueled alfalfa bale drying device disclosed in an embodiment of this application;

[0033] Figure 2 This is an enlarged view of the blower and motor of a hydrogen-fueled alfalfa bale drying device disclosed in an embodiment of this application;

[0034] Figure 3 This is a cross-sectional view of the hydrogen storage tank of an alfalfa bale drying device using hydrogen as fuel, as disclosed in an embodiment of this application.

[0035] Figure 4 This is a cross-sectional view of the flexible air duct of a hydrogen-fueled alfalfa bale drying device disclosed in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Hydrogen storage tank; 2. Valve; 3. Combustion furnace; 4. Gas supply pipe; 5. Spark plug ignition device; 6. Ventilation hole; 7. Hot air pipe; 8. Blower; 9. Motor; 10. Air duct; 11. Flexible air duct; 12. Alfalfa bale drying equipment; 13. Main air inlet pipe; 14. Air needle;

[0038] 101. Metal inner liner; 102. Composite material winding layer;

[0039] 1101. High-temperature resistant fiberglass fabric; 1102. Silicone or fluororubber coating; 1103. Elastic reinforcing rib structure. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0041] See Figures 1 to 3 As shown;

[0042] This embodiment discloses an alfalfa bale drying device that uses hydrogen as fuel. The main air inlet pipe 13 of the alfalfa bale drying device 12 is connected to a hot air supply system, which uses hydrogen as an energy source.

[0043] The hot air supply system includes:

[0044] Hydrogen storage tank 1, which stores hydrogen gas;

[0045] The combustion furnace 3 is located downstream of the hydrogen storage tank 1. The combustion furnace 3 is connected to the hydrogen storage tank 1 through the gas supply pipe 4 to receive hydrogen and burn it in the combustion furnace 3.

[0046] The downstream end of the combustion furnace 3 is connected to the air supply component, which receives the hot air from the combustion furnace 3 and delivers it to the main air inlet pipe 13 of the alfalfa bale drying equipment 12.

[0047] Specifically, this embodiment discloses a hydrogen-fueled system that primarily supplies hot air to the alfalfa bale drying equipment 12. Hydrogen, as a clean energy source, produces only water as a combustion product, without the pollutants emitted by traditional fossil fuel combustion, thus meeting the requirements of green development. The system in this embodiment mainly includes a hydrogen storage tank 1, a combustion furnace 3, and an air supply assembly. The hydrogen storage tank 1 stores hydrogen and transports it to the combustion furnace 3 via a gas pipeline. In the combustion furnace 3, the hydrogen is ignited and burned by an ignition assembly. The resulting hot air is then transported through the air supply assembly to the main air inlet duct 13 of the alfalfa bale drying equipment 12, and finally to the alfalfa bales for drying.

[0048] Preferably, the upper end of the alfalfa whole bale drying equipment 12 in this embodiment has a main air inlet pipe 13, and multiple air needles 14 extending in a vertical direction are connected to the main air inlet pipe 13, and multiple air holes are evenly distributed on the surface of the air needles 14; the hot air delivered by the air supply component passes through the main air inlet pipe 13 and the air needles 14 and is discharged through the air holes.

[0049] First, based on the structure of the existing alfalfa drying equipment (model GD124), the alfalfa bale drying equipment 12 in this embodiment adopts an internal forced alfalfa drying equipment. Its upper end is the main air inlet pipe 13, and multiple air needles 14 are connected to the main air inlet pipe 13. The air needles 14 extend vertically and are arranged inside the main frame of the alfalfa drying equipment. In this embodiment, the air needles 14 are also interspersed between alfalfa bales, and multiple air holes are processed on the surface of the air needles 14 to deliver hot air to the inside of the alfalfa bales and different positions in sequence, so as to achieve the purpose of uniform drying.

[0050] Preferably, in this embodiment, a valve 2 is installed on the gas transmission pipe 4 of the hydrogen storage tank 1 to control the opening and closing of the gas transmission pipe 4.

[0051] Preferably, the furnace wall of the combustion furnace 3 in this embodiment is provided with ventilation holes 6;

[0052] In this embodiment, the gas supply pipe 4 is connected to the combustion furnace 3 via a hydrogen delivery pump within the spark plug ignition device 5. The hydrogen delivery pump supplies hydrogen to the spark plug ignition device 5 and ignites the hydrogen within the combustion furnace 3. Furthermore, this embodiment uses a diaphragm pump to ensure sealing and safety during the high-pressure hydrogen delivery process. As a preferred embodiment, the spark plug ignition device 5 is linked to a temperature control sensor via an electronic control unit to automate the combustion start-up process.

[0053] The spark plug ignition device 5 and the hydrogen delivery pump involved in this embodiment are both existing technology products. Therefore, this application does not elaborate on their working principles. It is sufficient to integrate the spark plug ignition device 5 into the end of the combustion furnace 3 to achieve combustion of the delivered hydrogen. The ventilation holes 6 opened in the furnace wall of the combustion furnace 3 can supplement the oxygen required for combustion.

[0054] Preferably, the air supply assembly of this embodiment includes a hot air duct 7 connected to the combustion furnace 3; and a flexible air duct 11 connected to the main air inlet duct 13 of the alfalfa bale drying equipment 12; wherein, in this embodiment, the hot air duct 7 is connected to the air inlet end of the blower 8, and the air outlet end of the blower 8 is connected to the flexible air duct 11 through the air duct 10. The hot air in the combustion furnace 3 is transported to the flexible air duct 11 by the blower 8 through the hot air duct 7, and finally introduced into the main air inlet duct 13 of the equipment through the flexible air duct 11, and finally discharged through the air hole of the air needle 14.

[0055] In this embodiment, the blower 8 is driven by the motor 9. The motor 9 is a variable frequency motor, which can automatically adjust the air volume and air pressure according to the drying conditions to improve energy efficiency and optimize the stability of the retrofit process.

[0056] Preferably, in this embodiment, the outer layer of the flexible air duct 11 is made of high-temperature resistant fiberglass fabric, and the inner layer of the flexible air duct 11 is coated with silicone or fluororubber. Secondly, an elastic reinforcing rib structure is provided between the outer and inner layers of the flexible air duct 11 in this embodiment. As a preferred embodiment, the flexible air duct 11 is made of silicone-reinforced fiberglass composite material, which has high temperature resistance, corrosion resistance, and good flexibility, making it suitable for long-term use in high-temperature, high-humidity, and dry environments. See also... Figure 4 As shown, more preferably, the elastic reinforcing rib structure 1103 of this embodiment is made of stainless steel wire with a diameter of 2mm, and the stainless steel wire is wound in a spiral manner. The length of the flexible air duct 11 is 3000mm and the diameter is 300mm.

[0057] Preferably, in this embodiment, the inner metal liner 101 of the hydrogen storage tank 1 has a composite material winding layer 102 on its outer layer. This structure improves the pressure resistance and safety of the hydrogen storage tank 1.

[0058] Preferably, the composite material winding layer 102 in this embodiment is made of carbon fiber reinforced epoxy resin.

[0059] During operation, the air needle penetrates the bale and inserts into the core area inside the bale. The air holes of the air needle 14 discharge hot air, achieving rapid and uniform drying of the alfalfa bale from the inside out, improving drying efficiency and reducing nutrient loss.

[0060] In the above technical solution, the alfalfa bale drying equipment using hydrogen as fuel provided by this utility model has the following beneficial effects:

[0061] The device of this invention uses hydrogen as an energy source, and combustion produces only water. It does not produce pollutants like those from traditional fossil fuel combustion, has excellent environmental performance, and is in line with the concept of green development. Moreover, hydrogen is widely available and can be produced using renewable energy sources, ensuring a stable energy supply.

[0062] The alfalfa whole bale drying equipment 12 of this utility model adopts an internal forced alfalfa drying equipment. The hot airflow can penetrate deep into the interior of the alfalfa whole bale, so that the moisture evaporates quickly and evenly, greatly shortening the drying time, improving the drying efficiency, and ensuring that the alfalfa is dried evenly, retaining the nutrients to the greatest extent and improving the feed value.

[0063] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydrogen-fueled alfalfa bale drying device (12), wherein the main air inlet pipe (13) of the alfalfa bale drying device (12) is connected to a hot air supply system, characterized in that, The hot air supply system uses hydrogen as its energy source; The hot air supply system includes: Hydrogen storage tank (1), which stores hydrogen gas inside; A combustion furnace (3) is located downstream of the hydrogen storage tank (1). The combustion furnace (3) is connected to the hydrogen storage tank (1) via a gas pipeline (4) to receive hydrogen and burn it in the combustion furnace (3). The downstream end of the combustion furnace (3) is connected to an air supply assembly, which receives the hot air from the combustion furnace (3) and delivers it to the main air inlet pipe (13) of the alfalfa bale drying equipment (12).

2. The alfalfa bale drying equipment using hydrogen as fuel according to claim 1, characterized in that, The upper end of the alfalfa whole bale drying equipment (12) has the main air inlet pipe (13), and there are multiple air needles (14) extending vertically connected to the main air inlet pipe (13), and the surface of the air needles (14) is evenly distributed with multiple air holes. The hot air delivered by the air supply assembly passes through the main air inlet pipe (13) and the air needle (14) and is then discharged through the air hole.

3. The alfalfa bale drying equipment using hydrogen as fuel according to claim 1, characterized in that, A valve (2) is installed on the gas transmission pipe (4) of the hydrogen storage tank (1) to control the opening and closing of the gas transmission pipe (4).

4. The alfalfa bale drying equipment using hydrogen as fuel according to claim 1, characterized in that, The furnace wall of the combustion furnace (3) is provided with ventilation holes (6); The gas supply pipe (4) is connected to the combustion furnace (3) through a hydrogen delivery pump in the spark plug ignition device (5). The hydrogen delivery pump delivers hydrogen to the spark plug ignition device (5) and ignites the hydrogen in the combustion furnace (3) through the spark plug ignition device (5).

5. The alfalfa bale drying equipment using hydrogen as fuel according to claim 4, characterized in that, The air supply assembly includes: The hot air duct (7) connected to the combustion furnace (3); and A flexible air duct (11) connected to the main air inlet pipe (13) of the alfalfa bale drying equipment (12); The hot air pipe (7) is connected to the air inlet of the blower (8), and the air outlet of the blower (8) is connected to the flexible air duct (11) through the air duct (10). The hot air in the combustion furnace (3) is transported to the flexible air duct (11) through the blower (8) via the hot air pipe (7).

6. The alfalfa bale drying equipment using hydrogen as fuel according to claim 5, characterized in that, The blower is driven by an electric motor.

7. The alfalfa bale drying equipment using hydrogen as fuel according to claim 5, characterized in that, The outer layer of the flexible air duct (11) is high temperature resistant glass fiber fabric (1101), and the inner layer of the flexible air duct (11) is silicone or fluororubber coating (1102). An elastic reinforcing rib structure (1103) is provided between the outer and inner layers of the flexible air duct (11).

8. The alfalfa bale drying equipment using hydrogen as fuel according to claim 1, characterized in that, The inner layer of the hydrogen storage tank (1) is a metal liner (101), and the outer layer of the metal liner (101) is provided with a composite material winding layer (102).

9. The alfalfa bale drying equipment using hydrogen as fuel according to claim 8, characterized in that, The composite material winding layer (102) is made of carbon fiber reinforced epoxy resin.

10. The alfalfa bale drying equipment using hydrogen as fuel according to claim 7, characterized in that, The elastic reinforcing rib structure (1103) is made of stainless steel wire with a diameter of 2mm, and the stainless steel wire is wound in a spiral manner. The length of the flexible air duct (11) is 3000mm and the diameter is 300mm.

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