Energy-saving tea drying oven
By using a combination of heat exchange tube, heat sink and centrifugal fan in the tea oven, the waste gas heat recovery and preheating are achieved. Combined with rotating rack and temperature control, the problem of energy waste in the existing tea oven is solved and the drying efficiency is improved and quality.
Patent Information
- Application Number
- CN202421057663.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-15
AI Technical Summary
When used, the existing tea ovens are not effectively recycled due to the failure to directly discharge the heat from the exhaust gas, resulting in waste of energy and lack of energy saving efficiency.
An energy-saving tea oven was designed, using heat exchange tubes and heat sinks to recover heat from the exhaust gas, and preheat the air through a centrifugal fan, combining a rotating rack and a motor to achieve uniform drying of tea, while using a temperature sensor and controlling the main machine. Achieve constant temperature drying.
It improves the energy utilization rate and drying efficiency of the tea oven, ensures the uniform drying and drying quality of the tea, and can dry a large amount of tea at one time.
Smart Images
Figure CN222352773U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tea processing equipment, in particular to an energy-saving tea drying oven. Background Art
[0002] Tea leaves, commonly known as tea, generally include leaves and buds of tea trees. Tea ingredients include catechins, cholestenone, caffeine, inositol, folic acid, and pantothenic acid, which are beneficial to health. When tea leaves are processed, they need to be dried in an oven. When used, the current tea drying oven directly discharges the waste gas generated by drying tea leaves, but the waste gas contains a lot of heat, which makes the use of tea drying ovens not energy-efficient enough. Therefore, it is urgent to design an energy-saving tea drying oven to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to provide an energy-saving tea drying oven to solve the above-mentioned deficiencies in the prior art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An energy-saving tea drying oven comprises a box body, hollow plates are fixed to the inner walls on both sides of the box body, evenly distributed air outlet nozzles are welded to the outer wall of one side of the hollow plate, a mounting shell is fixed to the top of the box body, an insulation shell is fixed inside the mounting shell, the insulation shell is connected to the two hollow plates through a pipeline, evenly distributed heating wires are fixed inside the insulation shell, a centrifugal fan is fixed inside the mounting shell, the air outlet of the centrifugal fan is connected to the insulation shell, an air outlet pipe is fixed to the top outer wall of the mounting shell, the bottom end of the air outlet pipe extends to the inside of the mounting shell, evenly distributed heat exchange pipes are fixed, and the bottom end of the heat exchange pipe extends to the inside of the box body.
[0006] Furthermore, evenly distributed heat sinks are fixed to the outer wall of the heat exchange tube, an air inlet is provided on one side of the mounting shell, and a dustproof net is fixed at the air inlet of the mounting shell.
[0007] Furthermore, the interior of the box is connected to a rotating frame via a bearing, and evenly distributed trays are arranged inside the rotating frame.
[0008] Furthermore, a motor is fixed to the bottom outer wall of the box body, and one end of the output shaft of the motor is connected to the connecting shaft of the rotating frame through a key.
[0009] Furthermore, a control host is fixed to the top outer wall of the installation shell, a temperature sensor is fixed to the top inner wall of the box body, and the heating wire and the temperature sensor are electrically connected to the control host through wires respectively.
[0010] Furthermore, a switch door is connected to an outer wall of one side of the box body via a hinge, and casters are fixed to the bottom of the box body.
[0011] Furthermore, a handle is fixed on one side outer wall of the switch door, and a locking assembly adapted to the switch door is provided on one side outer wall of the box body.
[0012] In the above technical scheme, the utility model provides an energy-saving tea drying oven, which has the following beneficial effects: through the heat exchange tube, heat sink and centrifugal fan, the air exhausted from the box body passes through the heat exchange tube, so that the heat exchange tube can preheat the air entering the centrifugal fan, thereby achieving the effect of recovering heat in the exhaust gas, making the tea drying oven more energy-saving when in use, and the heating area can be increased through the heat sink, so that the heat recovery efficiency in the exhaust gas is higher; through the motor, rotating frame and tray, the rotating frame is driven by the motor to rotate, so that the tea leaves on the tray are heated more evenly during drying, and multiple trays can be placed on the rotating frame, so that a large amount of tea leaves can be dried at one time, thereby improving the drying efficiency of the tea leaves; the temperature inside the box body is detected by the temperature sensor, so that the control host can control the heating wire to be turned on and off according to the signal fed back by the temperature sensor, thereby achieving the effect of achieving a constant temperature when drying the tea leaves, and improving the drying quality of the tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0014] Figure 1 The present invention is a schematic diagram of the main structure of an energy-saving tea drying oven embodiment provided by the utility model.
[0015] Figure 2 The present invention is a schematic cross-sectional view of an energy-saving tea drying oven according to an embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the enlarged structure of point A provided in an embodiment of an energy-saving tea drying oven of the utility model.
[0017] Description of reference numerals:
[0018] 1 box body, 2 hollow board, 3 air outlet, 4 insulation shell, 5 heating wire, 6 air inlet, 7 locking assembly, 8 centrifugal fan, 9 dust screen, 10 motor, 11 air outlet pipe, 12 heat exchange pipe, 13 heat sink, 14 installation shell, 15 switch door, 16 handle, 17 caster, 18 control host, 19 rotating frame, 20 tray, 21 temperature sensor. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] like Figure 1-3 As shown, an energy-saving tea drying oven provided by an embodiment of the utility model comprises a box body 1, hollow plates 2 are fixed to the inner walls on both sides of the box body 1, and evenly distributed air outlet nozzles 3 are welded to the outer wall of one side of the hollow plate 2, a mounting shell 14 is fixed to the top of the box body 1, a heat preservation shell 4 is fixed inside the mounting shell 14, the heat preservation shell 4 is connected to the two hollow plates 2 by a pipeline, evenly distributed heating wires 5 are fixed inside the heat preservation shell 4, a centrifugal fan 8 is fixed inside the mounting shell 14, and the air outlet of the centrifugal fan 8 is connected to the heat preservation shell 4, an air outlet pipe 11 is fixed to the top outer wall of the mounting shell 14, and the bottom end of the air outlet pipe 11 extends to the inside of the mounting shell 14, where evenly distributed heat exchange pipes are fixed, and the bottom end of the heat exchange pipe 12 extends to the inside of the box body 1.
[0021] Specifically, in this embodiment, it includes a box body 1, and hollow plates 2 are fixed to the inner walls on both sides of the box body 1. The hollow plates 2 are hollow inside. Evenly distributed air outlet nozzles 3 are welded to the outer wall of one side of the hollow plate 2, and the air inside the hollow plate 2 can flow out evenly from the air outlet nozzles 3. A mounting shell 14 is fixed to the top of the box body 1, and a heat-insulating shell 4 is fixed to the inside of the mounting shell 14. The heat-insulating shell 4 is made of high-temperature resistant and heat-insulating material. The heat-insulating shell 4 is connected to the two hollow plates 2 through a pipeline, and the air inside the heat-insulating shell 4 can enter the inside of the hollow plate 2. Evenly distributed heating wires 5 are fixed to the inside of the heat-insulating shell 4. The heating wires 5 are electric heating wires that can generate heat after being energized. A centrifugal fan 8 is fixed to the inside of the mounting shell 14, and the motor of the centrifugal fan 8 is located outside the mounting shell 14. The impeller is located inside the mounting shell 14, and the air outlet of the centrifugal fan 8 is connected to the insulation shell 4. The centrifugal fan 8 can transport air to the insulation shell 4. An air outlet pipe 11 is fixed to the top outer wall of the mounting shell 14, and the bottom end of the air outlet pipe 11 extends to the inside of the mounting shell 14. Evenly distributed heat exchange tubes 12 are fixed thereto, and the bottom end of the heat exchange tube 12 extends to the inside of the box body 1. The exhaust gas inside the box body 1 can enter the heat exchange tube 12, so that the heat in the exhaust gas can heat the air outside the heat exchange tube 12, and the exhaust gas is finally discharged from the air outlet pipe 11 after passing through the heat exchange tube 12. Evenly distributed heat sinks 13 are fixed to the outer wall of the heat exchange tube, and an air inlet 6 is provided on one side of the mounting shell 14. A dustproof net 9 is fixed at the air inlet 6 of the mounting shell 14 to prevent dust from entering the mounting shell 14.
[0022] The utility model provides an energy-saving tea drying oven. By means of the heat exchange tube 12, the heat sink 13 and the centrifugal fan 8, the air exhausted from the inside of the box body 1 passes through the heat exchange tube 12, so that the heat exchange tube 12 can preheat the air entering the centrifugal fan 8, thereby achieving the effect of heat recovery in the exhaust gas, making the tea drying oven more energy-saving when in use, and the heat sink 13 can increase the heating area, so that the heat recovery efficiency in the exhaust gas is higher.
[0023] In another embodiment provided by the utility model, a rotating frame 19 is connected to the interior of the box body 1 through a bearing, and evenly distributed trays 20 are arranged inside the rotating frame 19. The trays 20 can be taken out from the interior of the rotating frame 19, and the tea leaves to be dried are spread on the trays 20; a motor 10 is fixed to the bottom outer wall of the box body 1, and one end of the output shaft of the motor 10 is connected to the connecting shaft of the rotating frame 19 through a key. The motor 10 is used to drive the rotating frame 19 to rotate, so that the tea leaves on the trays 20 are heated more evenly during drying, and multiple trays 20 can be placed on the rotating frame 19, so that a large amount of tea leaves can be dried at one time, thereby improving the drying efficiency of the tea leaves.
[0024] In another embodiment provided by the utility model, a control host 18 is fixed to the top outer wall of the mounting shell 14, a temperature sensor 21 is fixed to the top inner wall of the box body 1, the heating wire 5 and the temperature sensor 21 are electrically connected to the control host 18 through wires, the temperature sensor 21 detects the temperature inside the box body 1, and the temperature sensor 21 transmits the detected temperature to the control host 18 through an electrical signal. When the temperature inside the box body 1 is higher than the set temperature, the control host 18 controls the power supply of the heating wire 5 to be disconnected; when the temperature inside the box body 1 is lower than the set temperature, the control host 18 controls the power supply of the heating wire 5 to be connected, and the control host 18 can control the heating wire 5 to be turned on according to the temperature sensor 21. The feedback signal controls the heating wire 5 to turn on and off, so that the temperature inside the box 1 is kept constant, thereby achieving a constant temperature effect when drying tea leaves and improving the drying quality of the tea leaves. The specific connection principle between the heating wire 5, the temperature sensor 21 and the control host 18 is the existing technology; the outer wall of one side of the box 1 is connected to the switch door 15 through a hinge, and the bottom of the box 1 is fixed with a caster 17, which is convenient for moving the oven through the caster 17; a handle 16 is fixed to the outer wall of one side of the switch door 15, and the outer wall of one side of the box 1 is provided with a locking assembly 7 compatible with the switch door 15. The locking assembly 7 is the existing technology, so that the switch door 15 can be fixed after the switch door 15 is closed.
[0025] Working principle: When in use, first take out the tray 20 inside the rotating frame 19, and spread the tea leaves to be dried on the tray 20, then place the tray 20 inside the rotating frame 19, and close the switch door 15, so that the locking assembly 7 fixes the switch door 15; the air inside the heat-insulating shell 4 is heated by the heating wire 5, and at the same time, the centrifugal fan 8 conveys air to the inside of the heat-insulating shell 4 when working, so that the hot air inside the heat-insulating shell 4 enters the inside of the hollow plate 2 through pressure, so that the hot air is blown to the tray 20 from the air outlet 3 on the side of the hollow plate 2, so that the moisture inside the tea leaves evaporates to Inside the box 1, the air inside the box 1 enters the heat exchange tube 12 under pressure, so that the heat exchange tube 12 heats the air around it through the heat sink 13, and then the air is discharged from the outlet pipe 11. At the same time, when the centrifugal fan 8 is working, the air outside the box 1 enters the inside of the mounting shell 14 from the air inlet 6, and then the air carries the heat around the heat exchange tube 12 from the centrifugal fan 8 into the inside of the insulation shell 4, and then the heating wire 5 continuously heats the air entering the box 1, so that the tea leaves on the tray 20 are dried due to the heating, and the heat in the exhaust gas can also be recovered.
[0026] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that 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. An energy-saving tea drying oven, characterized in that: The invention comprises a box body (1), wherein hollow plates (2) are fixed to the inner walls of both sides of the box body (1), and evenly distributed air outlet nozzles (3) are welded to the outer wall of one side of the hollow plate (2); a mounting shell (14) is fixed to the top of the box body (1), and an insulation shell (4) is fixed inside the mounting shell (14); the insulation shell (4) is connected to the two hollow plates (2) through a pipeline, and evenly distributed heating wires (5) are fixed inside the insulation shell (4); a centrifugal fan (8) is fixed inside the mounting shell (14), and the air outlet of the centrifugal fan (8) is connected to the insulation shell (4); an air outlet pipe (11) is fixed to the outer wall of the top of the mounting shell (14), and the bottom end of the air outlet pipe (11) extends to the inside of the mounting shell (14); evenly distributed heat exchange pipes are fixed thereto, and the bottom end of the heat exchange pipe (12) extends to the inside of the box body (1).
2. An energy-saving tea drying oven according to claim 1, characterized in that: The outer wall of the heat exchange tube is fixed with evenly distributed heat sinks (13), one side of the mounting shell (14) is provided with an air inlet (6), and a dustproof net (9) is fixed at the air inlet (6) of the mounting shell (14).
3. The energy-saving tea drying oven according to claim 1, characterized in that: The interior of the box body (1) is connected to a rotating frame (19) via a bearing, and evenly distributed trays (20) are arranged inside the rotating frame (19).
4. An energy-saving tea drying oven according to claim 3, characterized in that: A motor (10) is fixed to the outer wall of the bottom of the box body (1), and one end of the output shaft of the motor (10) is connected to the connecting shaft of the rotating frame (19) via a key.
5. The energy-saving tea drying oven according to claim 1, characterized in that: A control host (18) is fixed to the top outer wall of the installation shell (14), a temperature sensor (21) is fixed to the top inner wall of the box body (1), and the heating wire (5) and the temperature sensor (21) are electrically connected to the control host (18) via wires.
6. The energy-saving tea drying oven according to claim 1, characterized in that: One side outer wall of the box body (1) is connected to a switch door (15) via a hinge, and a caster (17) is fixed to the bottom of the box body (1).
7. The energy-saving tea drying oven according to claim 6, characterized in that: A handle (16) is fixed to one side outer wall of the switch door (15), and a locking assembly (7) adapted to the switch door (15) is provided on one side outer wall of the box body (1).