Electric blast drying oven
By setting a dehumidification layer and a flow guide assembly in the electric-heating blower drying box, the problem of low drying efficiency caused by increasing humidity is solved, and a more efficient drying treatment is achieved.
Patent Information
- Application Number
- CN202421439422.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-24
AI Technical Summary
During the drying process of the electric blower drying box, due to the increase in humidity, the surface of the item is prone to adsorbing water, prolonging the drying time and reducing drying efficiency.
A dehumidification layer is provided in the drying box to absorb water vapor from the hot air, reduce humidity in the box, and allow hot air to blow onto the items in all directions through the flow guide assembly.
It effectively reduces the humidity in the drying box, improves the efficiency of drying items, and shortens the drying time.
Smart Images
Figure CN222733192U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of drying ovens, and in particular to an electric heating blast drying oven. Background Art
[0002] The electric blast drying oven, also known as the "drying oven", uses electric heating to conduct blast cycle drying tests. It is divided into blast drying and vacuum drying. Blast drying is to blow hot air through a circulating fan to ensure the temperature balance in the oven.
[0003] A general electric heating blast drying oven includes a box body, a storage rack, an electric heater and a fan. The box body is arranged horizontally, the storage rack is located inside the box body and is fixedly connected to the box body, the fan is arranged inside the box body and is fixedly connected to the bottom end of the box body, the fan inlet is connected to the outside of the box body, the fan outlet is located inside the box body, and the electric heater is arranged inside the box body and is connected to the box body. When in use, the electric heater heats the air sucked by the fan, the hot air flows upward, and dries the items on the storage rack.
[0004] During the drying process, the moisture carried by the items evaporates, and the water vapor flows with the hot air, which greatly increases the humidity in the electric blast drying oven. The higher the humidity in the electric blast drying oven, the easier it is for the surface of the items to absorb water, thereby extending the drying time of the items and reducing the drying efficiency of the items. Utility Model Content
[0005] In order to improve the efficiency of drying articles in an electric blast drying oven, the present application provides an electric blast drying oven.
[0006] The present application provides an electric heating blast drying oven, which adopts the following technical solution:
[0007] An electric hot air drying box comprises a box body, wherein an air suction component, an electric heater and a dehumidification layer are arranged in the box body, a storage rack is arranged in the box body, the storage rack is connected to the box body and is used to place items to be dried, an exhaust hole is opened on the box body, the exhaust hole is used to exhaust the air in the box body, the air suction component is located at the bottom end of the box body and is used to suck the air outside the box body, the electric heater is used to increase the air in the box body and heat the air sucked by the air suction component, and the dehumidification layer is located above the storage rack and is used to absorb water vapor carried in the hot air.
[0008] By adopting the above technical solution, the air suction component draws the air outside the box into the box, the electric heater heats the air, the hot air flows upward, and then dries the items on the shelf, the moisture in the items evaporates into water vapor, the water vapor flows upward with the hot air, and the dehumidification layer absorbs the water vapor in the hot air, so that the humidity in the electric blast drying box is reduced, thereby improving the efficiency of the electric blast drying box in drying items.
[0009] Optionally, the air suction assembly includes a fan and a ventilation duct, the fan is located at the bottom of the box and fixedly connected to the box, the inlet of the fan is connected to the outside of the box, the ventilation duct is connected to the outlet of the fan, and the other end faces the storage rack.
[0010] By adopting the above technical solution, the fan sucks the air outside the box, and the air enters the ventilation pipe from the outlet of the fan. The air flows in the ventilation pipe and then flows out from the end of the ventilation pipe away from the fan, so that the air outside the box can be blown into the box.
[0011] Optionally, the electric heater is a resistance wire, which is arranged at the bottom of the box and is used to heat the air sucked by the fan.
[0012] By adopting the above technical solution, the resistance wire works, the temperature at the bottom of the box rises rapidly, and at the same time the resistance wire heats the cold air drawn by the fan from outside the box, so that the air temperature rises, and the hot air flows upward in the box, thereby enabling the electric blast drying box to make the air flow and heat the air entering the box.
[0013] Optionally, the dehumidification layer is made of a desiccant.
[0014] By adopting the above technical solution, the moisture on the articles evaporates and flows in the box with the hot air, the humidity in the box increases, and the desiccant absorbs the water vapor carried in the hot air, so that the humidity in the electric blast drying box is reduced, thereby improving the efficiency of the drying process of the articles.
[0015] Optionally, a filter layer is provided at the inlet of the fan, and the filter layer is used to filter dust and water vapor in the air.
[0016] By adopting the above technical solution, when the fan sucks air outside the box, the filter layer at the fan inlet filters the air, absorbs dust and water vapor in the air, so that the air entering the box is dry and cold air, thereby making the humidity in the box less susceptible to the influence of external air.
[0017] Optionally, a guide assembly is provided in the box, and the guide assembly is located above the dehumidification layer. The guide assembly includes a first guide plate and a second guide plate. Two first guide plates are provided, and the two first guide plates are arranged opposite to each other and are both inclined. The distance between the two first guide plates gradually increases in the direction approaching the dehumidification layer. The first guide plate is fixedly connected to the box, and two second guide plates are provided, and correspond one to one to the first guide plates. The second guide plate is arranged at an angle to the first guide plate, and the second guide plate is located on the side wall of the first guide plate close to the top of the box, and is connected to the side wall of the first guide plate.
[0018] By adopting the above technical solution, the hot air in the box body near the edge of the box body flows along the first guide plate, and the hot air flows toward the middle of the box body under the guiding effect of the first guide plate. When the hot air reaches the second guide plate, the hot air flows along the second guide plate, and flows toward the direction close to the object under the guiding effect of the second guide plate, so that the hot air can be blown to the top of the object, so that the electric blast drying box can dry the object in all directions.
[0019] Optionally, a rotating shaft is provided at the connection between the second guide plate and the first guide plate, the rotating shaft is rotatably connected to the first guide plate, and the rotating shaft is fixedly connected to the second guide plate.
[0020] By adopting the above technical solution, when the hot air flows along the first guide plate to the second guide plate, the rotating shaft is rotated to adjust the angle between the first guide plate and the second guide plate according to the size of the top of the object, so that the hot air can be blown to the top of the object with the maximum area, thereby accelerating the process of drying the object.
[0021] Optionally, the box body is provided with an air expansion hopper, which is located below the storage rack and fixedly connected to the box body, and the air expansion hopper is connected to an end of the ventilation pipe away from the fan.
[0022] By adopting the above technical solution, the air sucked by the fan enters the ventilation pipe from the outlet of the fan, the air flows along the ventilation pipe, and after the air flows out from the end of the ventilation pipe away from the fan, the air flows around along the side wall of the air expansion hopper, so that the air can diffuse in the box.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] By setting up a dehumidification layer, the water vapor in the hot air can be absorbed, so that the humidity in the box does not increase due to water vapor;
[0025] By providing the first guide plate and the second guide plate, the dehumidified hot air can flow downward, so that the hot air can be blown to the top of the article, so that the electric hot air drying oven can dry the article more comprehensively;
[0026] By arranging a rotating shaft at the connection between the second guide plate and the first guide plate, the second guide plate can rotate relative to the first guide plate, so that the angle between the first guide plate and the second guide plate can be adjusted according to the size of the top end of the article. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;
[0028] Figure 2 is a cross-sectional view intended to illustrate the structure of the storage rack;
[0029] Figure 3 is a cross-sectional view intended to illustrate the filter layer.
[0030] Description of reference numerals:
[0031] 1. Box body; 11. Exhaust hole; 2. Air suction component; 21. Fan; 211. Filter layer; 22. Ventilation pipe; 3. Electric heater; 31. Resistance wire; 4. Dehumidification layer; 5. Storage rack; 6. Air expansion hopper; 7. Guide component; 71. First guide plate; 72. Second guide plate; 73. Rotating shaft. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-3 This application is described in further detail.
[0033] The present application embodiment discloses an electric heating blast drying oven. Figure 1 and Figure 2 The electric hot air drying box includes a box body 1, in which an air suction component 2, an electric heater 3 and a dehumidification layer 4 are arranged from the bottom to the top, and a shelf 5 is arranged between the dehumidification layer 4 and the air suction component 2. The air suction component 2 is used to suck air outside the box body 1 into the box body 1.
[0034] When in use, the suction component 2 draws air from the outside of the box 1, and the air enters the box 1. The electric heater 3 increases the temperature inside the box 1 and heats the cold air entering the box 1. The hot air flows upward and evaporates the moisture in the articles. The moisture in the articles turns into water vapor, and the water vapor moves upward with the hot air. The dehumidification layer 4 absorbs the water vapor carried in the hot air, so that the humidity in the box 1 is not easy to increase, thereby improving the efficiency of the electric hot air drying oven for drying articles.
[0035] Reference Figure 1The box body 1 is in a rectangular box shape and is vertically arranged. An exhaust hole 11 is opened on the box body 1. The exhaust hole 11 is circular and is located at the top center of the box body 1.
[0036] Reference Figure 2 The rack 5 is in the shape of a rectangular plate and a grid. The rack 5 is horizontally arranged. The rack 5 is located in the middle of the box body 1 and is fixedly connected to the box body 1.
[0037] Reference Figure 2 and Figure 3 The air intake component 2 is arranged inside the box body 1, and the air intake component 2 includes a fan 21 and a ventilation pipe 22. The fan 21 is located at the bottom end of the box body 1 and at one end in the length direction of the bottom end of the box body 1. The fan 21 is fixedly connected to the bottom end of the box body 1, and the inlet of the fan 21 is connected to the side wall of the box body 1 and communicated with the outside of the box body 1.
[0038] A filter layer 211 is disposed at the inlet of the fan 21 . The filter layer 211 is cylindrical and made of a honeycomb desiccant. The filter layer 211 is fixedly connected to the inlet of the fan 21 .
[0039] Reference Figure 2 The ventilation pipe 22 is in a circular tube shape, one end of the ventilation pipe 22 is connected to the outlet of the fan 21, and the other end faces the storage rack 5.
[0040] An air expansion hopper 6 is arranged in the box body 1. The air expansion hopper 6 is arranged horizontally and is in the shape of a rectangular funnel. The air expansion hopper 6 is located between the storage rack 5 and the air suction component 2. The air expansion hopper 6 is fixedly connected to the box body 1. The bottom end of the air expansion hopper 6 is connected to the end of the ventilation pipe 22 away from the fan 21.
[0041] The electric heater 3 is a resistance wire 31 , which is arranged on the side wall of the gas expansion hopper 6 and is in a spiral shape.
[0042] The dehumidification layer 4 is in the shape of a rectangular plate and is arranged horizontally. The dehumidification layer 4 is adapted to the interior of the box body 1 and is fixedly connected to the box body 1. The dehumidification layer 4 is made of a desiccant.
[0043] When in use, the resistance wire 31 generates heat, which increases the temperature inside the box body 1. At the same time, the fan 21 draws air outside the box body 1. The filter layer 211 at the inlet of the fan 21 filters the air. Dust and water vapor in the air are adsorbed on the filter layer 211. Dry cold air enters the ventilation pipe 22 from the outlet of the fan 21 and flows along the ventilation pipe 22. The air flows out from the end of the ventilation pipe 22 away from the fan 21 and spreads to the surroundings along the side wall of the air expansion bucket 6. The temperature of the air gradually increases, and the hot air flows upward in the box body 1. When the hot air passes through the storage rack 5, the moisture in the articles evaporates and turns into water vapor. The water vapor flows upward with the hot air. When the hot air passes through the dehumidification layer 4, the dehumidification layer 4 absorbs the water vapor carried in the hot air, so that the humidity in the box body 1 is not easy to increase, thereby effectively improving the working efficiency of the electric blast drying box for drying articles.
[0044] Reference Figure 2 and Figure 3 A guide assembly 7 is also provided in the box body 1. The guide assembly 7 is located above the dehumidification layer 4 and is connected to the box body 1. The guide assembly 7 includes a first guide plate 71 and a second guide plate 72. The first guide plate 71 is in the shape of a rectangular plate. Two first guide plates 71 are provided. The two first guide plates 71 are arranged opposite to each other and are both inclined. The distance between the two first guide plates 71 gradually increases in the direction approaching the dehumidification layer 4. The two first guide plates 71 are fixedly connected to the box body 1.
[0045] The second guide plate 72 is in the shape of a rectangular plate. Two second guide plates 72 are provided and correspond one to one with the first guide plates 71 . The second guide plates 72 are located on one side of the first guide plate 71 close to the top of the box body 1 and are connected to the side wall of the first guide plate 71 .
[0046] A rotating shaft 73 is provided at the connection between the second guide plate 72 and the first guide plate 71. The rotating shaft 73 is in the shape of a round rod. The rotating shaft 73 is fixedly connected to the second guide plate 72 and is rotatably connected to the first guide plate 71. One end of the rotating shaft 73 passes through the side wall of the box body 1 and is rotatably connected to the side wall of the box body 1.
[0047] When in use, after the hot air passes through the dehumidification layer 4, the hot air at both ends of the box body 1 in the length direction converges along the first guide plate 71 to the middle of the box body 1 in the length direction, and the hot air flows to the second guide plate 72, and the rotating shaft 73 is rotated to adjust the distance between the two second guide plates 72 according to the size of the top of the object, and then the hot air flows downward along the second guide plate 72, and the hot air passes through the top of the dehumidification layer 4 and flows in the direction close to the object. The hot air flows to the top of the object, so that the hot air can be blown to the object comprehensively, thereby making the drying process of the object in the electric hot air drying oven more efficient.
[0048] The implementation principle of an electric blast drying oven in an embodiment of the present application is as follows: when in use, the fan 21 is started, and the fan 21 draws air into the air expansion hopper 6 through the ventilation pipe 22. The air is blown along the air expansion hopper 6 to the storage rack 5. The resistance wire 31 heats the air to make the air hot air. The hot air heats the articles and carries the moisture of the articles to the dehumidification layer 4. The dehumidification layer 4 absorbs the moisture, and then the second guide plate 72 is adjusted so that the hot air can also be blown to the top of the articles, thereby improving the efficiency of the electric blast drying oven in drying articles.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An electric heating blast drying oven, characterized in that: The invention comprises a box (1), wherein an air suction component (2), an electric heater (3) and a dehumidification layer (4) are arranged in the box (1), wherein a storage rack (5) is arranged in the box (1), wherein the storage rack (5) is connected to the box (1) and is used to place items to be dried, wherein an exhaust hole (11) is provided on the box (1), wherein the exhaust hole (11) is used to exhaust the air in the box (1), wherein the air suction component (2) is located at the bottom end of the box (1) and is used to suck air outside the box (1), wherein the electric heater (3) is used to increase the temperature in the box (1) and heat the air sucked by the air suction component (2), and wherein the dehumidification layer (4) is located above the storage rack (5) and is used to absorb water vapor carried in the hot air.
2. The electric heating blast drying oven according to claim 1, characterized in that: The air intake assembly (2) comprises a fan (21) and a ventilation pipe (22); the fan (21) is located at the bottom end of the box (1) and is fixedly connected to the box (1); an inlet of the fan (21) is connected to the outside of the box (1); one end of the ventilation pipe (22) is connected to the outlet of the fan (21), and the other end faces the storage rack (5).
3. The electric heating blast drying oven according to claim 2, characterized in that: The electric heater (3) is a resistance wire (31), which is arranged at the bottom of the box (1) and is used to heat the air sucked by the fan (21).
4. The electric heating blast drying oven according to claim 1, characterized in that: The dehumidification layer (4) is made of a desiccant.
5. The electric heating blast drying oven according to claim 2, characterized in that: A filter layer (211) is provided at the inlet of the fan (21), and the filter layer (211) is used to filter dust and water vapor in the air.
6. The electric heating blast drying oven according to claim 1, characterized in that: An internal flow guide component (7) is arranged in the box body (1), the flow guide component (7) is located above the dehumidification layer (4), the flow guide component (7) comprises a first flow guide plate (71) and a second flow guide plate (72), two first flow guide plates (71) are arranged opposite to each other and are arranged at an angle, the distance between the two first flow guide plates (71) gradually increases in a direction approaching the dehumidification layer (4), the first flow guide plate (71) is connected to the box body (1), two second flow guide plates (72) are arranged and correspond to the first flow guide plates (71) one by one, the length direction of the second flow guide plate (72) is arranged at an angle with the first flow guide plate (71), the second flow guide plate (72) is located on the side wall of the first flow guide plate (71) close to the top of the box body (1), and is connected to the side wall of the first flow guide plate (71).
7. The electric heating blast drying oven according to claim 6, characterized in that: A rotating shaft (73) is provided at the connection between the second guide plate (72) and the first guide plate (71); the rotating shaft (73) is rotatably connected to the first guide plate (71); and the rotating shaft (73) is fixedly connected to the second guide plate (72).
8. The electric heating blast drying oven according to claim 2, characterized in that: An air expansion hopper (6) is provided at one end of the ventilation pipe (22) away from the fan (21); the air expansion hopper (6) is arranged horizontally, is located below the storage rack (5), and is fixedly connected to the box body (1); the air expansion hopper (6) is in communication with the end of the ventilation pipe (22) away from the fan (21).