一种改善烟叶色泽的光热耦合失水架
By designing a photothermal coupling dehydration rack, the problem of uneven drying of tobacco leaves in traditional drying racks was solved, achieving uniform color of tobacco leaves and durability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional tobacco drying racks have defects in air circulation and light and heat utilization, resulting in uneven drying of tobacco leaves and affecting color quality.
Design a photothermal coupling water loss rack that includes an outer frame, an inner layer, a breathable placement net, and ventilation ducts. The outer frame is a rectangular closed frame, the inner layer separates the upper and lower spaces, the ventilation ducts guide airflow, and the breathable placement net facilitates the handling and cleaning of tobacco leaves.
It achieves uniform heating and stable water loss of tobacco leaves, significantly improves color uniformity, reduces the risk of local discoloration and mold, and extends equipment life.
Smart Images
Figure CN224504682U_ABST
Abstract
Claims
1. A photo-thermal coupling dehydration rack for improving the color of tobacco leaves, characterized by: The system includes an outer frame, an inner interlayer, a breathable mesh, and a ventilation duct. The outer frame is a rectangular closed frame with an open top. The inner interlayer is a horizontally arranged plate-like structure, fixedly installed inside the outer frame and dividing the interior of the outer frame into an upper placement space and a lower ventilation space. The edge of the inner interlayer is fixedly connected to the inner sidewall of the outer frame. The breathable mesh is laid horizontally on the upper surface of the inner interlayer, and its edge is detachably connected to the inner sidewall of the outer frame. The ventilation duct is a hollow tubular structure, with one end penetrating the side of the outer frame and fixedly connected to it, and the other end extending into the lower ventilation space below the inner interlayer and spaced apart from the lower surface of the inner interlayer. Multiple air outlets are evenly distributed on the section of the ventilation duct located in the lower ventilation space, and the opening direction of the air outlets faces the breathable mesh.
2. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 1, characterized in that, The bottom of the outer frame is provided with support feet, which are columnar structures and are vertically fixed at the four corners of the bottom of the outer frame. The height of the support feet is greater than the diameter of the ventilation duct.
3. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 2, characterized in that, The inner interlayer is a perforated metal plate with vents, the vents being evenly distributed on the surface of the inner interlayer, and the thickness of the inner interlayer is 5-10mm.
4. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 3, characterized in that, The breathable mesh is woven from stainless steel wire with a diamond-shaped mesh. The edges of the breathable mesh are folded upwards and are connected to the inner wall of the outer frame by a snap-fit structure.
5. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 4, characterized in that, The ventilation duct includes a main duct and branch ducts. One end of the main duct is connected to the side of the outer frame, and the other end is connected to the branch duct. The branch duct extends along the length of the inner interlayer, and multiple air outlets are evenly distributed on the upper surface of the branch duct.
6. The photothermal coupling dehydration rack for improving tobacco leaf color according to claim 5, characterized in that, The number of branch pipes is at least two, each branch pipe is parallel to each other and distributed at intervals below the inner interlayer, and the spacing between adjacent branch pipes is equal.
7. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 6, characterized in that, The inner wall of the outer frame is provided with a sliding groove extending along the height direction, and the edge of the inner interlayer is provided with a slider that matches the sliding groove. The inner interlayer is installed inside the outer frame through the sliding engagement of the slider and the sliding groove.
8. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 7, characterized in that, A sealing gasket is provided at the connection between the ventilation duct and the outer frame. The sealing gasket is fitted on the outside of the ventilation duct and fits tightly against the side of the outer frame and the outer wall of the ventilation duct.
9. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 8, characterized in that, The top edge of the outer frame has an outwardly extending flange, which is a horizontally set plate-like structure with a width of 3-5cm. The outer frame is made of metal frame pieces.
10. The light-heat coupling dehydration rack for improving color of tobacco leaves according to claim 9, characterized in that, The air outlet is an upward-sloping strip-shaped hole, the length of which is perpendicular to the axis of the ventilation duct, and the edges of the air outlet are rounded.