Tea fermentation device

Abstract

The utility model discloses a tea fermentation device, which relates to a fermentation device and comprises a box body, and a bearing frame is fixedly mounted on the inner side wall of the box body; the placing disc is placed on the bearing frame and used for containing tea leaves needing to be fermented, and air holes are evenly formed in the bottom of the placing disc; and the plurality of heat dissipation pipes are arranged in the placement disc, extend to the bottom layer of the tea leaves and are used for dissipating heat of the tea leaves. According to the utility model, the placing tray is arranged, and the heat dissipation pipe is arranged on the placing tray, so that fermented tea leaves are directly spread on the placing tray, the heat dissipation pipe is inserted into the spread tea leaves, and the heat dissipation pipe can realize ventilation and heat dissipation of the middle-layer or layer tea leaves, so that the temperature rise of the middle-layer or bottom-layer tea leaves can be avoided; the temperature is relatively uniform when the tea leaves are fermented, and the tea leaves do not need to be turned, so that the quality of the tea leaves is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fermentation devices, and in particular to a tea fermentation device. Background Technology

[0002] Black tea is a fully fermented tea, made through withering, rolling, fermentation, and drying. The fermentation temperature for black tea is generally between 22-30℃, with a humidity requirement of over 90%. During fermentation, polyphenolic compounds in the tea leaves undergo oxidation under the action of enzymes, producing colored substances such as theaflavins and isocyanates, and releasing heat, causing the tea's temperature to rise. This is especially true for the tea leaves in the middle or bottom, which experience the fastest temperature rise due to the covering effect of the upper layers of tea. During black tea fermentation, it is necessary to turn the tea leaves, moving the outer leaves to the inside and the inner leaves to the outside—a process commonly known as "peeling"—to ensure even fermentation. However, turning the tea leaves increases the workload and can also damage them. To address these issues, this application provides a tea fermentation device that ensures uniform temperature during black tea fermentation without requiring the tea leaves to be turned. Utility Model Content

[0003] The main purpose of this utility model is to provide a tea fermentation device that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tea fermentation apparatus, comprising:

[0006] The box body has a support frame fixedly installed on its inner side wall;

[0007] A placement tray is placed on the support frame to hold tea leaves that need to be fermented. The bottom of the placement tray has evenly distributed air holes.

[0008] Multiple heat dissipation pipes are installed inside the tray and extend to the bottom of the tea leaves to dissipate heat from the tea leaves.

[0009] Furthermore, the heat dissipation pipe has an open structure at both ends, and when the heat dissipation pipe is located inside the placement plate, the bottom of the heat dissipation pipe is in contact with the air hole.

[0010] Furthermore, a support mesh is placed at the bottom of the inner cavity of the placement plate, and the heat dissipation pipe is fixedly connected to the support mesh.

[0011] Furthermore, a support block is fixedly installed at the bottom of the support net, which allows for ventilation between the support net and the placement tray.

[0012] Furthermore, the sidewall of the heat dissipation pipe is provided with evenly distributed heat dissipation holes.

[0013] Furthermore, ventilation slots are provided on the side wall of the placement tray.

[0014] Furthermore, ventilation openings are provided between the support frame and the inner wall of the box.

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

[0016] This invention features a placement tray with heat dissipation pipes. Fermented tea leaves are spread directly on the tray, and the heat dissipation pipes are inserted into the tea leaves. These pipes provide ventilation and heat dissipation for the middle or bottom layers of tea leaves, preventing the temperature from rising and ensuring a relatively uniform temperature during fermentation. Furthermore, the tea leaves do not need to be turned over, thus preserving their quality. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the box and the placement tray of this utility model;

[0018] Figure 2 This is a structural diagram of the present invention;

[0019] Figure 3 This is a structural diagram of the heat dissipation pipe and the placement plate of this utility model;

[0020] Figure 4 This is a cross-sectional view of the heat dissipation pipe and the placement plate of this utility model;

[0021] Figure 5 This is a structural diagram of the heat dissipation pipe, support mesh, and placement tray of this utility model;

[0022] Figure 6 This is a cross-sectional view of the heat dissipation pipe, support mesh, and placement plate of this utility model.

[0023] In the diagram: 1. Box body; 2. Support frame; 3. Placement tray; 4. Ventilation opening; 6. Support mesh; 7. Heat dissipation pipe; 8. Air hole; 9. Ventilation slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6. This embodiment provides a tea fermentation device, including a housing 1. The housing 1 is equipped with a temperature controller and a humidity controller, which can realize temperature and humidity control. Its principle and structure can be referred to Chinese Patent No. CN216292867U or the black tea fermentation machine with model number HS-HC-01 from Guangzhou Hongshun Testing Equipment Co., Ltd., which are existing technologies and will not be described in detail here.

[0026] Multiple support frames 2 are fixedly installed on the inner side wall of the housing 1, such as... Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the support frame 2 is evenly distributed on the inner side wall of the box 1, and a ventilation opening 4 is left between the support frame 2 and the side wall of the box 1, such as... Figure 2 As shown, the ventilation opening 4 is located on the inner side wall of the box 1, which keeps the interior of the entire box 1 connected and allows the temperature and humidity of the entire box 1 to circulate uniformly.

[0027] A placement tray 3 is placed on the support frame 2. The tea leaves to be fermented are spread on the placement tray 3. The bottom of the placement tray 3 has evenly distributed air holes 8, and the side walls have ventilation grooves 9. Figure 1 and Figure 2 As shown, the height of the placement tray 3 is less than the height between the two support frames 2, so as to facilitate the sliding placement of the placement tray 3 on the support frame 2, and at the same time facilitate the air flow inside the box 1 to ensure a constant and uniform temperature. The setting of the air hole 8 and the ventilation groove 9 allows air to flow through the placement tray 3 and the tea leaves spread on the placement tray 3.

[0028] When fermenting black tea, the thickness of the spread layer is generally 8-12cm. Tender leaves and small-leaf teas are spread thinly, while older leaves and large-leaf teas are spread thickly. In regions with suitable temperatures, such as Yunnan, the thickness can be increased to 25cm. The fermentation temperature is 22-30℃, and the humidity requirement is above 90%. During fermentation, polyphenolic compounds in the tea undergo oxidation under the action of enzymes, producing colored substances such as theaflavins and isocyanins, and releasing heat, causing the tea temperature to rise. This is especially true for the middle or bottom layers of tea, where the temperature rises due to the covering of the upper layers, affecting the tea quality. In this embodiment, the placement tray 3 also contains multiple heat dissipation pipes 7, such as... Figure 3 and Figure 4 As shown, the distance between adjacent heat dissipation pipes 7 is 20-30cm, depending on the actual thickness. When the thickness is relatively thin, such as a spreading thickness of 8-9cm, the distance between heat dissipation pipes 7 is 30cm. When the thickness is thick, such as a tea leaf spreading thickness of 12cm, the distance between heat dissipation pipes 7 is 20cm.

[0029] The heat dissipation pipe 7 is a cylindrical or cuboid structure with openings at both ends. The heat dissipation pipe 7 is placed directly inside the placement plate 3, and its bottom is in contact with and connected to the air vent 8 to ensure ventilation inside the heat dissipation pipe 7. The heat dissipation pipe 7 has evenly distributed heat dissipation holes.

[0030] When using, the heat dissipation tube 7 can be placed inside the placement tray 3, and then the tea leaves can be spread on the placement tray 3. Alternatively, the tea leaves can be placed inside the placement tray 3, and before spreading them evenly, the heat dissipation tube 7 can be placed on the placement tray 3, and then the tea leaves can be spread evenly.

[0031] Because of the heat dissipation pipe 7, which is embedded in and in contact with the tea leaves, ventilation can be achieved. As the tea leaves rise steadily, heat can be carried away. Moreover, the air from the heat dissipation pipe 7 enters between the bottom layer of tea leaves through the heat dissipation holes, which can provide better ventilation for the middle and bottom layers of tea leaves and has a good heat dissipation effect. This avoids or reduces the temperature rise of the middle or bottom layers of tea leaves, ensures the uniformity of the temperature of the spread tea leaves, and guarantees the quality of the tea leaves.

[0032] In a further embodiment, a support mesh 6 is placed at the bottom of the inner cavity of the placement tray 3, such as... Figure 5 and Figure 6 As shown, the support mesh 6 has densely packed diamond-shaped mesh holes, and the bottom of the heat dissipation pipe 7 is fixedly connected to the support mesh 6, as shown. Figure 6 As shown, support blocks are fixedly installed at the four corners of the bottom of the support net 6. When the support net 6 is placed inside the support blocks, a ventilation gap is left between the support net 6 and the bottom of the inner cavity of the placement tray 3. The tea leaves to be fermented are placed on the support net 6, which suspends the tea leaves and improves the ventilation effect at the bottom of the tea leaves. Moreover, the support net 6 is used in conjunction with the heat dissipation pipe 7, which makes the use and placement of the heat dissipation pipe 7 more convenient and allows for more stable placement. When the placement tray 3 is pulled out, the heat dissipation pipe 7 will not tilt due to the removal of the placement tray 3.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A tea leaf fermentation apparatus, characterized by, Include: Box (1), the inner side wall of box (1) is fixedly installed with bearing frame (2); Placing disc (3) is placed on the bearing frame (2), is used for containing tea leaves needing fermentation, the bottom of placing disc (3) is provided with uniformly distributed air hole (8); A plurality of heat dissipation pipes (7) are arranged in the inside of the placing disc (3) and extend to the bottom layer of tea leaves, for heat dissipation of tea leaves; The heat dissipation pipe (7) is the structure of two ends opening, when the heat dissipation pipe (7) is located in the inside of the placing disc (3), the bottom of the heat dissipation pipe (7) is attached with the air hole (8); The side wall of the heat dissipation pipe (7) is provided with uniformly distributed heat dissipation hole.

2. The tea fermentation device according to claim 1, characterized in that: The inner chamber bottom of the placing disc (3) is placed with support net (6), and the heat dissipation pipe (7) is fixedly connected with the support net (6).

3. The tea fermentation device according to claim 2, characterized in that: The bottom of the support net (6) is fixedly installed with support block, and the support block makes the support net (6) and the placing disc (3) leave the ventilation gap.

4. The tea fermentation device according to claim 1, characterized in that: The side wall of the placing disc (3) is provided with ventilation groove (9).

5. The tea fermentation device according to claim 4, characterized in that: The bearing frame (2) and the inner side wall of the box (1) leave the ventilation opening (4).

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