A graphene plate-based tea leaf carbon roasting device

Abstract

The utility model discloses a kind of tea carbon baking devices based on graphene plate, including base, fan, primary air distribution plate, shell, first air duct, secondary air distribution plate, tertiary air distribution plate and control assembly. Base has first storage cavity, fan is set in first storage cavity, primary air distribution plate is located above fan and is placed in first storage cavity;Shell is covered on the top of base, its inside is equipped with second storage cavity, first air duct is placed in second storage cavity;Secondary air distribution plate is arranged at the junction of shell and base, and be configured as graphene plate;Tertiary air distribution plate is arranged inside first air duct, it is arc structure, tea is placed above tertiary air distribution plate;Control assembly is electrically connected with secondary air distribution plate and fan. The device is heated efficiently through graphene plate and combined with multi-stage air distribution and air guide structure, tea can be heated evenly, energy consumption can be reduced, carbon baking quality and efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, and in particular to a tea charcoal roasting device based on a graphene plate. Background Technology

[0002] Charcoal roasting of tea is a crucial step in the tea-making process, significantly impacting the formation of flavor and the stability of tea quality. Currently, most charcoal roasting equipment uses traditional heating elements combined with an air supply system to achieve hot air circulation, promoting even heating of the tea leaves. However, such equipment still has certain limitations in practical applications: it is difficult to balance the heating rate of the heat source with the efficiency of heat conduction, resulting in high energy consumption and a delayed temperature response; the uniformity of hot air distribution within the tea layer still has room for improvement, easily affecting the consistency of roasting results. Furthermore, the existing structure has limited ability to control the hot air flow field, making it difficult to adapt to the processing requirements of different types of tea, thus hindering the refinement of the charcoal roasting process. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to propose a tea charcoal roasting device based on graphene plates. By using graphene plates as secondary air distribution plates and combining them with multi-stage air guiding structures, efficient and uniform heating can be achieved, solving the problems of uneven hot air distribution and low energy efficiency in traditional charcoal roasting devices.

[0004] To achieve the aforementioned technical objectives, the technical solution adopted by this utility model is as follows: a tea roasting device based on a graphene plate, comprising: a base, a fan, a primary air distribution plate, a housing, a first air guide duct, a secondary air distribution plate, a tertiary air distribution plate, and a control component. The base has a first storage cavity; the fan is disposed within the first storage cavity; the primary air distribution plate is disposed above the fan and within the first storage cavity; the housing covers the top of the base, and a second storage cavity is provided within the housing; the first air guide duct is disposed within the second storage cavity; the secondary air distribution plate is disposed at the connection between the housing and the base, and the secondary air distribution plate is configured as a graphene plate; the tertiary air distribution plate is disposed within the first air guide duct, and the tertiary air distribution plate has an arched structure, with tea leaves placed above the tertiary air distribution plate; the control component is electrically connected to the secondary air distribution plate and the fan.

[0005] In some embodiments, the tea charcoal roasting device further includes at least one first support column disposed in a first storage cavity, and the first support column is provided with a primary air distribution plate.

[0006] In some embodiments, the base has a first opening at the top, which communicates with a first storage cavity; the base has a first inner ring protrusion at the edge of the first opening, and a secondary air distribution plate is provided on the first inner ring protrusion.

[0007] In some embodiments, the first air guide duct includes a first air guide section and a second air guide section. The first air guide section has a frustum structure, and the second air guide section has an inverted frustum structure. The first air guide section and the second air guide section are integrally formed.

[0008] In some embodiments, the three-stage air distribution plate is placed at the connection between the first air guide section and the second air guide section.

[0009] In some embodiments, the control component includes: a conductive device, a switch, and a control unit, wherein the conductive device is electrically connected to the graphene; the switch is electrically connected to the conductive device; and the control unit is electrically connected to the fan and the conductive device.

[0010] In some embodiments, the primary air distribution plate has a plurality of first air distribution holes; the plurality of first air distribution holes have a diameter of 2 mm and an opening ratio of 40%.

[0011] In some embodiments, the secondary air distribution plate has a plurality of second air distribution holes; the second air distribution holes are configured as honeycomb holes, and the diameter of the second air distribution holes is 6 mm.

[0012] In some embodiments, the three-stage air distribution plate has a plurality of third air distribution holes; the aperture of the plurality of third air distribution holes is 3 mm; and the arch height of the arched structure of the three-stage air distribution plate is 50 mm.

[0013] In some embodiments, the tea charcoal roasting device further includes a plurality of heat-conducting pipes, which are distributed circumferentially along the inner side of the first storage cavity. The heat-conducting pipes are made of aluminum material with a wall thickness of 1 mm. The ends of the heat-conducting pipes are suspended and tapered with a cone angle of 30°.

[0014] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This invention provides a tea roasting device based on a graphene plate, comprising a base, a fan, a primary air distribution plate, a housing, a first air guide duct, a secondary air distribution plate, a tertiary air distribution plate, and a control component. The base has a first storage cavity, within which the fan is located, and the primary air distribution plate is positioned above the fan and within the first storage cavity. The housing covers the base and contains a second storage cavity, within which the first air guide duct is placed. The secondary air distribution plate is located at the connection between the housing and the base and is configured as a graphene plate. The tertiary air distribution plate is located inside the first air guide duct, forming an arched structure, and the tea leaves are placed above it. The control component is electrically connected to the secondary air distribution plate and the fan. This device, through efficient heating of the graphene plate combined with a multi-stage air distribution and guiding structure, achieves uniform heating of the tea leaves, reduces energy consumption, and improves the quality and efficiency of tea roasting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the specific structure of the tea charcoal roasting device described in the specific implementation method; Figure 2 This is a cross-sectional structural diagram of the tea charcoal roasting device described in the specific implementation method; Figure 3 This is a schematic diagram of the specific structure of the first storage cavity in a specific implementation method; Figure 4 This is a schematic diagram of the specific structure of the first air guide duct in a specific implementation method.

[0017] The reference numerals for the above figures are as follows: 1. Base; 11. First supporting column; 12. Heat pipe; 2. Fan; 3. Primary air distribution panel; 31. First air distribution hole; 4. Shell; 5. First air duct; 51. First air guide section; 52. Second air guide section; 6. Secondary air distribution panel; 61. Second air distribution hole; 7. Three-stage air distribution panel; 71. Third air distribution hole. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0019] Please see Figures 1 to 4This embodiment provides a tea roasting device based on a graphene plate, including: a base 1, a fan 2, a primary air distribution plate 3, a housing 4, a first air guide duct 5, a secondary air distribution plate 6, a tertiary air distribution plate 7, and a control component. The base 1 has a first storage cavity; the fan 2 is disposed in the first storage cavity; the primary air distribution plate 3 is disposed above the fan 2 and disposed in the first storage cavity; the housing 4 covers the top of the base 1, and the housing 4 has a second storage cavity; the first air guide duct 5 is disposed in the second storage cavity; the secondary air distribution plate 6 is disposed at the connection between the housing 4 and the base 1, and the secondary air distribution plate 6 is configured as a graphene plate; the tertiary air distribution plate 7 is disposed in the first air guide duct 5, and the tertiary air distribution plate 7 has an arched structure, with tea leaves placed above the tertiary air distribution plate 7; the control component is electrically connected to the secondary air distribution plate 6 and the fan 2.

[0020] In this embodiment, the base 1 supports the internal components of the device and provides structural support. Its first storage cavity provides installation space for components such as the fan 2 and the primary air distribution plate 3. The fan 2 generates airflow; preferably, a brushless DC fan 2 is used to achieve low noise and adjustable speed operation. The primary air distribution plate 3 is located above the fan 2, and its function is to initially equalize the airflow, reduce turbulence, and improve the uniformity of air delivery.

[0021] The housing 4 and base 1 are closed to form a sealed cavity, the second storage cavity inside which is used to accommodate the first air guide duct 5 and the tea placing area. The first air guide duct 5 is placed in the second storage cavity to guide and concentrate the airflow direction. Its structure can be further optimized into a streamlined air duct with upper contraction and lower diffusion to reduce flow resistance. The secondary air distribution plate 6 is located at the connection position between the housing 4 and the base 1. It uses a graphene plate to achieve efficient electrothermal conversion, which can rapidly heat up at a low voltage and radiate far-infrared heat. Preferably, its surface can be covered with a high-temperature resistant insulation layer to improve safety and durability. The tertiary air distribution plate 7 is located inside the first air guide duct 5. It has an arched structure to hold the tea. Its special shape can increase the contact area between the tea and the airflow, while avoiding local accumulation of tea. The control component is used to coordinate the wind speed of the fan 2 and the heating power of the graphene plate. The operating parameters can be adjusted according to the type of tea and the process stage.

[0022] During operation, the fan 2 delivers airflow into the first storage chamber, which is then initially evenly distributed by the primary air distribution plate 3 before entering the second storage chamber. The airflow is heated as it passes through the graphene-material secondary air distribution plate 6, carrying far-infrared radiation energy as it continues to flow upwards. The first air guide duct 5 guides and accelerates the hot airflow, ensuring it penetrates evenly through the arched tertiary air distribution plate 7 and effectively roasts the tea leaves above. The arched structure increases the heating area of ​​the tea leaves and prevents clogging of the air vents. The rapid and precise temperature control characteristics of the graphene plate, combined with the multi-stage air distribution design, significantly improve the uniformity of hot air distribution and the efficiency of thermal energy utilization. This structure effectively overcomes common problems in traditional roasting devices, such as uneven temperature, high energy consumption, and lag in control. It enables stable and efficient tea roasting under different process requirements, contributing to improved tea quality and processing consistency.

[0023] In some embodiments, the tea charcoal roasting device further includes at least one first support column 11 disposed in the first storage cavity, and the first support column 11 is provided with a primary air distribution plate 3.

[0024] In this embodiment, the first support column 11 is used to support the primary air distribution plate 3 and adjust its installation height. The number of columns can be set according to the size of the air distribution plate and structural strength requirements. Preferably, stainless steel is used to improve corrosion resistance and structural stability. The bottom end of the first support column 11 can be fixed to the inner wall or bottom of the base 1, and the top end can be connected to the primary air distribution plate 3 via threads or clips for easy disassembly, cleaning, or height adjustment. By setting the first support column 11, displacement of the primary air distribution plate 3 due to airflow impact or equipment vibration can be avoided, while providing sufficient air intake space for the lower fan 2.

[0025] In this embodiment, by adding a first support column 11, the primary air distribution plate 3 is kept in a stable installation position above the fan 2, ensuring that the airflow can pass evenly through the air distribution holes after being sent out by the fan 2, reducing turbulence and energy loss. This structure improves the stability and reliability of the device operation, while facilitating maintenance and cleaning, and is beneficial for maintaining the airflow organization effect and carbon roasting uniformity during long-term operation.

[0026] In some embodiments, the base 1 has a first opening above it, which communicates with the first storage cavity; the base 1 has a first inner ring protrusion at the edge of the first opening, and a secondary air distribution plate 6 is provided on the first inner ring protrusion.

[0027] In this embodiment, the first opening connects the first storage cavity of the base 1 with the space of the upper housing 4, allowing airflow to pass smoothly. A first inner ring protrusion is located at the edge of the first opening, providing a mounting platform for the secondary air distribution plate 6. Preferably, its height is designed to be 3-5mm to form a stable support surface. The first inner ring protrusion can be sealed to the edge of the secondary air distribution plate 6 via a slot or high-temperature resistant adhesive strip to prevent airflow leakage and ensure that all hot air passes through the graphene plate.

[0028] In this embodiment, the first inner ring protrusion supports the secondary air distribution plate 6, ensuring a stable assembly relationship between the graphene plate and the base 1 and preventing displacement due to thermal expansion and contraction or vibration. This structure ensures that the airflow can pass completely through the honeycomb holes of the secondary air distribution plate 6 when flowing upward from the first placement cavity, making full use of the heating characteristics of the graphene plate while maintaining the airtightness and structural stability of the device, which is beneficial to improving thermal energy utilization efficiency and carbon roasting uniformity.

[0029] In some embodiments, the first air guide duct 5 includes a first air guide section 51 and a second air guide section 52. The first air guide section 51 has a frustum structure, and the second air guide section 52 has an inverted frustum structure. The first air guide section 51 and the second air guide section 52 are integrally formed.

[0030] In this embodiment, the first air guide 51 adopts a frustum-shaped structure that is narrower at the top and wider at the bottom to contract and accelerate the rising airflow, thereby improving airflow penetration. The second air guide 52 adopts an inverted frustum-shaped structure that is wider at the top and narrower at the bottom, located above the first air guide 51, to diffuse the airflow and reduce its velocity, ensuring that the hot air evenly covers the tea leaf area. The two air guides are integrally formed to reduce airflow resistance at the connection point. Preferably, stainless steel is used to ensure structural strength and heat resistance.

[0031] In this embodiment, the airflow is accelerated by the contraction of the first air guide 51 and decelerated by the diffusion of the second air guide 52. The airflow forms a flow field change of first acceleration and then deceleration in the air guide tube, which ensures the effective penetration of the airflow into the tea layer and avoids the displacement or damage caused by the high-speed airflow directly impacting the tea. At the same time, it improves the uniformity of hot air distribution and heat energy utilization, which is conducive to improving the quality of charcoal roasting and the stability of the process.

[0032] In some embodiments, the three-stage air distribution plate 7 is placed at the connection between the first air guide section 51 and the second air guide section 52.

[0033] In this embodiment, the three-stage air distribution plate 7 is located at the connection between the first air guide section 51 and the second air guide section 52, in the transition region where the airflow changes from contraction to diffusion. By installing the arched air distribution plate here, better penetration can be achieved by utilizing the kinetic energy of the accelerated airflow, while the uniform flow field formed at the beginning of the diffusion section improves the uniformity of hot air distribution. Preferably, an annular support groove can be provided at the connection to fix the edge of the air distribution plate and ensure structural stability.

[0034] The three-stage air distribution plate 7 is located at a crucial position for airflow conversion. It can fully utilize the high-speed airflow generated by the first air guide 51 to enhance the penetration of the tea leaves, and also use the diffusion effect of the second air guide 52 to ensure that the hot air evenly covers the surface of the tea leaves. This layout significantly improves heat exchange efficiency and temperature distribution uniformity, avoids local overheating or airflow dead zones, and is conducive to more thorough heating of the tea leaves and more consistent roasting effect, while reducing energy waste.

[0035] In some embodiments, the control component includes: a conductive device, a switch, and a control unit, wherein the conductive device is electrically connected to the graphene; the switch is electrically connected to the conductive device; and the control unit is electrically connected to the fan 2 and the conductive device.

[0036] In this embodiment, conductive devices are used to conduct electrical energy to the graphene plate, and low-resistance materials such as silver paste electrodes or copper foil conductors can be used to achieve stable power supply. Switches are used to control the on / off state of the circuit, and relays or solid-state switches can be used to achieve rapid response. The control unit, as the core regulating component, receives sensor signals or preset program instructions to synchronously adjust the speed of fan 2 and the heating power of the graphene plate. Preferably, a temperature feedback module can also be integrated to achieve closed-loop control.

[0037] The control components coordinate the airflow from fan 2 with the heating of the graphene plate, enabling precise adjustment of the roasting environment based on the type of tea and the stage of the process. This integrated control ensures the matching of hot air temperature and flow rate while optimizing energy consumption, significantly improving the controllability and stability of the roasting process. This helps maintain the consistency of tea quality under different process requirements while reducing human error.

[0038] In some embodiments, the primary air distribution plate 3 has a plurality of first air distribution holes 31; the plurality of first air distribution holes 31 have a diameter of 2 mm and an opening rate of 40%.

[0039] In this embodiment, the first air distribution hole 31 is used to initially equalize and disperse the airflow generated by the fan 2. The hole diameter is set to 2mm to ensure sufficient ventilation while forming a fine airflow. The 40% opening ratio balances airflow permeability and structural strength, avoiding a decrease in plate strength due to excessively dense openings and effectively reducing airflow turbulence. Preferably, the holes can be arranged in a staggered manner to enhance the airflow diffusion effect.

[0040] In this embodiment, by combining specific aperture and opening ratio, the primary air distribution plate 3 can transform the airflow delivered by the fan 2 into a uniformly distributed fine stream, providing a stable airflow basis for the heating of the secondary air distribution plate 6 and the tea contact of the tertiary air distribution plate 7. This effectively improves the problem of uneven airflow distribution in traditional devices, enhances thermal energy utilization efficiency and charcoal roasting uniformity, and maintains the stability of device operation.

[0041] In some embodiments, the secondary air distribution plate 6 has a plurality of second air distribution holes 61; the second air distribution holes 61 are configured as honeycomb holes, and the diameter of the second air distribution holes 61 is 6mm.

[0042] In this embodiment, preferably, the second air distribution hole 61 adopts a honeycomb structure. This hexagonal arrangement can achieve the maximum porosity within a limited area while maintaining structural stability. Setting the hole diameter to 6mm ensures airflow permeability while allowing the hot air to fully contact the graphene plate for heating. The honeycomb structure also effectively disperses airflow pressure and reduces eddy current generation.

[0043] In this embodiment, the honeycomb structure combined with a specific aperture design ensures that the airflow forms a uniform and stable laminar flow when passing through the secondary air distribution plate 6, while fully utilizing the heating area of ​​the graphene plate. This embodiment significantly improves the hot air heating efficiency and temperature distribution uniformity, avoids local overheating or airflow short-circuiting, and is conducive to improving the quality of charcoal roasting and energy utilization efficiency, while maintaining the long-term reliability of the device.

[0044] In some embodiments, the three-stage air distribution plate 7 has a plurality of third air distribution holes 71; the aperture of the plurality of third air distribution holes 71 is 3mm; and the arch height of the arched structure of the three-stage air distribution plate 7 is 50mm.

[0045] In this embodiment, the diameter of the third air distribution hole 71 is set to 3mm, which can prevent tea leaves from falling while ensuring sufficient ventilation. The arched structure design allows the tea leaves to be naturally dispersed on the air distribution plate, and the arch height of 50mm provides sufficient airflow channel space while ensuring sufficient contact area between the tea leaves and the hot air. Preferably, the arched curved surface can adopt an involute shape to optimize the airflow distribution effect.

[0046] The arched structure, combined with air distribution holes of a specific diameter, allows hot air to penetrate the tea leaves evenly while preventing localized accumulation. The 50mm arch height ensures unobstructed airflow and allows the tea leaves to tumble properly during heating, significantly improving heat exchange efficiency and roasting uniformity. This is beneficial for the full transformation of flavor compounds and the stability of tea quality.

[0047] In some embodiments, the tea charcoal roasting device further includes a plurality of heat-conducting pipes 12, which are distributed circumferentially along the inner side of the first storage cavity. The heat-conducting pipes 12 are made of aluminum material with a wall thickness of 1 mm. The ends of the heat-conducting pipes 12 are suspended and tapered with a cone angle of 30°.

[0048] In this embodiment, the heat-conducting pipes 12 are distributed circumferentially along the inner side of the first placement cavity to absorb and conduct the heat generated by the fan 2 during operation. The use of aluminum material fully utilizes its high thermal conductivity, and the 1mm wall thickness optimizes heat transfer efficiency while ensuring structural strength. The tapered end design reduces airflow resistance, and the 30° cone angle achieves a balance between hydrodynamic performance and structural stability. The suspended end facilitates heat diffusion into the airflow.

[0049] In this embodiment, the heat pipe 12 absorbs the heat generated by the operation of the fan 2 and preheats the airflow, thereby improving the thermal energy utilization efficiency. The tapered end reduces airflow resistance, and the high thermal conductivity of the aluminum material ensures rapid heat transfer, effectively reducing energy consumption. At the same time, it improves the temperature uniformity of the airflow before entering the secondary air distribution plate 6, which is beneficial to optimizing the overall charcoal roasting effect and reducing energy consumption.

[0050] By adopting the above technical solutions, this utility model differs from the prior art and has the following beneficial effects: This invention utilizes a graphene plate as the secondary air distribution plate 6, combined with a multi-stage air distribution and guiding structure, to achieve efficient and uniform heating in the tea roasting process. The graphene plate can rapidly heat up and radiate far-infrared heat. Combined with the optimized flow field design of the first air guide duct 5 and the arched structure of the tertiary air distribution plate 7, it significantly improves the uniformity of hot air distribution and the efficiency of thermal energy utilization. The control component coordinates the collaborative work of the fan 2 and the heating unit, and can precisely adjust operating parameters according to process requirements. This device effectively solves the problems of uneven temperature distribution, high energy consumption, and lagging control in traditional roasting devices. It can achieve stable and efficient roasting processing under different tea varieties and process requirements, which is beneficial to improving the consistency of tea quality and the reliability of processing.

[0051] The above description is only a part of the embodiments of this utility model, and does not limit the scope of protection of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. A tea roasting device based on graphene plates, characterized in that, include: The base has a first storage cavity; A fan is installed inside the first storage cavity; A primary air distribution plate is disposed above the fan and placed inside the first storage cavity; The housing covers the top of the base, and the housing has a second storage cavity inside; The first air duct is placed inside the second storage cavity; A secondary air distribution plate is disposed at the connection between the housing and the base, and the secondary air distribution plate is configured as a graphene plate; A three-stage air distribution plate is installed inside the first air guide duct. The three-stage air distribution plate has an arched structure, and the tea leaves are placed above the three-stage air distribution plate. The control component is electrically connected to the secondary air distribution plate and the fan.

2. The tea roasting device based on graphene plate according to claim 1, characterized in that, Also includes: At least one first support column is disposed in the first storage cavity, and the first support column is provided with the first-stage air distribution plate.

3. The tea roasting device based on graphene plate according to claim 1, characterized in that, The base has a first opening at its top, and the first opening communicates with the first storage cavity; The base has a first inner ring protrusion at the edge of the first opening, and the second-level air distribution plate is provided on the first inner ring protrusion.

4. The tea roasting device based on graphene plate according to claim 1, characterized in that, The first air guide duct includes a first air guide section and a second air guide section. The first air guide section has a frustum structure, and the second air guide section has an inverted frustum structure. The first air guide section and the second air guide section are integrally formed.

5. The tea roasting device based on graphene plate according to claim 4, characterized in that, The three-stage air distribution plate is placed at the connection between the first air guide section and the second air guide section.

6. The tea roasting device based on graphene plate according to claim 1, characterized in that, The control component includes: A conductive device electrically connected to the graphene; The switch is electrically connected to the conductive device; The control unit is electrically connected to the fan and conductive devices.

7. The tea roasting device based on graphene plate according to claim 1, characterized in that, The primary air distribution plate has multiple first air distribution holes; The diameter of the first air distribution holes is 2mm, and the opening rate is 40%.

8. The tea roasting device based on graphene plate according to claim 1, characterized in that, The secondary air distribution plate has multiple secondary air distribution holes; The second air distribution hole is configured as a honeycomb hole, and the diameter of the second air distribution hole is 6mm.

9. The tea roasting device based on graphene plate according to claim 1, characterized in that, The three-stage air distribution plate has multiple third air distribution holes; The diameter of each of the third air distribution holes is 3mm; The arch height of the arched structure of the three-stage air distribution plate is 50mm.

10. The tea roasting device based on graphene plate according to claim 1, characterized in that, Also includes: Multiple heat-conducting pipes are distributed circumferentially along the inner side of the first storage cavity, and the heat-conducting pipes are made of aluminum with a wall thickness of 1 mm. The end of the heat pipe is suspended and tapered, with a cone angle of 30°.

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