A heat-insulating and waterproof drying device
By employing a dual-sided hot air device and an insulation layer in the drying unit, the problem of water mist affecting the fan in traditional drying systems has been solved, achieving a more efficient drying process and energy utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ADVANCED METALLURGICAL TECH CORP
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional drying systems are susceptible to water mist spraying during heat treatment processes, which can cause the fan motor to rust, reduce its service life, and result in significant heat loss and low energy efficiency.
A heat-insulating and waterproof drying device was designed, which adopts a double-sided hot air device. By wrapping the air duct with a heat-insulating cotton layer and setting electric heating tubes on both sides of the fan, the door is opened and closed by electric or gravity to prevent moisture from entering the fan, ensuring a uniform drying process and saving energy.
It effectively prevents moisture from entering the fan, extends motor life, improves drying efficiency, saves energy, and reduces costs.
Smart Images

Figure CN224434860U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drying, specifically relating to a heat-insulating and waterproof drying device. Background Technology
[0002] Industrial cleaning machines are often used in heat treatment processes. These high-efficiency cleaning devices are typically used to remove oil and processing residues from workpiece surfaces. Drying is particularly important in this process. Therefore, industrial cleaning machines are equipped with a drying system. Traditional drying systems are open-type, simply using a fan with heat sources at the fan outlet. In practice, traditional drying systems are quite rudimentary, with a single-layer shell and ventilation ducts. The blower is positioned on the left and right sides of the cleaning chamber, and several heating elements are directly placed at the blower outlet to provide heat. The outlet is left open in the cleaning chamber without any protective measures. During the workpiece cleaning process, there are several cleaning steps, including agitation and spray cleaning. The cleaning liquid splashes, especially during spray cleaning, creating a spray of water mist that actively propels the drying system's outlet. In traditional drying systems, large water droplets often accumulate on the surfaces of the fan and heating elements, which can significantly impact the fan motor, causing it to rust and reducing its lifespan. Utility Model Content
[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a heat-insulating and waterproof drying device.
[0004] To achieve the above and other related objectives, this utility model provides a heat-insulating and waterproof drying device, which includes a drying hood, a drying chamber disposed inside the drying hood for placing and drying workpieces, and a hot air device fixed on the first and second sides of the drying hood and communicating with the drying chamber.
[0005] The hot air device includes an air guide hood, an air inlet located at the top of the air guide hood, a fan fixedly installed at the air inlet at the top of the air guide hood, a first air outlet and a second air outlet located on the lower side of the air guide hood, a first air duct located inside the air guide hood for connecting the air inlet and the first air outlet, a second air duct located inside the air guide hood for connecting the air inlet and the second air outlet, a first electric heating element installed inside the first air duct, a second electric heating element installed inside the second air duct, a first opening and closing door located at the first air outlet, and a second opening and closing door located at the first air outlet. The first air duct is wrapped with a first insulation cotton layer, and the second air duct is wrapped with a second insulation cotton layer.
[0006] The drying hood has a first opening and a second opening at positions corresponding to the first air outlet and the second air outlet on its first and second side walls.
[0007] Optionally, the first and second doors are electrically operated or gravity-operated doors.
[0008] Optionally, the air guide includes a main body, an air outlet, and an arc-shaped connecting part connecting the main body and the air outlet. The air inlet is located at the top center of the main body, and the first air outlet and the second air outlet are respectively located on both sides of the air outlet. The air outlet is located below the main body.
[0009] Optionally, the air inlet is provided with a first air guide plate and a second air guide plate to guide the airflow generated by the fan to the first air duct and the second air duct, respectively.
[0010] Optionally, the first air duct is provided with a first mounting plate for fixing the first electric heating tube, and the first mounting plate is fixedly installed inside the first air duct. The second air duct is provided with a second mounting plate for fixing the second electric heating tube, and the second mounting plate is fixedly installed inside the second air duct.
[0011] Optionally, a first protective cover is provided on the outer wall of the air guide shroud at a position corresponding to the first mounting plate to protect the wiring terminal of the first electric heating tube, and a second protective cover is provided on the outer wall of the air guide shroud at a position corresponding to the second mounting plate to protect the wiring terminal of the second electric heating tube.
[0012] Optionally, an annular shock-absorbing rubber pad is provided between the fan and the periphery of the air inlet.
[0013] As described above, the heat-insulating and waterproof drying device of this utility model has the following beneficial effects: When using the heat-insulating and waterproof drying device of this utility model, the workpiece is placed in the drying chamber in a reasonable manner. After a series of cleaning operations, the fan is started and begins to rotate. The airflow generated is blown into the drying chamber through the first air duct and the second air duct. After the fan starts running, the first electric heating tube and the second electric heating tube are powered on. The first electric heating tube and the second electric heating tube begin to heat up. At the same time, the first opening and closing door and the second opening and closing door are blown open by the strong wind generated by the fan as the fan starts. The workpiece drying process begins. After a predetermined period of time, the power supply to the first electric heating tube and the second electric heating tube is cut off. The first electric heating tube and the second electric heating tube stop heating. Then the fan is stopped. The first opening and closing door and the second opening and closing door automatically close due to the shutdown of the fan and their own gravity. The drying process ends.
[0014] In this application, by placing the first and second air outlets below the air inlet and the fan, and closing them with the first and second opening / closing doors, moisture can be prevented from entering the ventilation duct and reaching the fan motor during workpiece cleaning. Installing hot air devices on both sides of the drying chamber allows the drying process to proceed evenly from both sides of the workpiece simultaneously, shortening the drying time and improving the drying effect. Wrapping the first and second air ducts with a first and second insulation layer effectively prevents heat loss during drying, improving energy efficiency, saving resources, and reducing costs. Simultaneously, distributing the first and second electric heating elements on both sides of the fan effectively prevents the generated heat from directly scorching the fan motor and affecting its operating environment. Attached Figure Description
[0015] Figure 1 The diagram shown is a structural schematic of the heat-insulating and waterproof drying device provided by this utility model.
[0016] Figure 2 The diagram shown is an exploded structural diagram of the hot air device in the heat-insulating and waterproof drying device provided by this utility model.
[0017] Figure 3 The diagram shown is a schematic representation of the internal structure of the hot air device in the heat-insulating and waterproof drying device provided by this utility model. Detailed Implementation
[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. For ease of explanation, when detailing the embodiments of this utility model, the cross-sectional views showing the device structure may be partially enlarged without adhering to the general scale, and the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0019] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for devices in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it may be the only layer between the two layers, or there may be one or more layers in between.
[0020] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. To keep the illustrations as concise as possible, not all structures are indicated in the drawings.
[0021] like Figure 1-3 As shown, this embodiment provides a heat-insulating and waterproof drying device. The drying device 10 includes a drying hood 11, a drying chamber 12 disposed inside the drying hood 11 for placing and drying workpieces 13, and a hot air device 14 fixed on the first and second sides of the drying hood 11 and communicating with the drying chamber 12.
[0022] The hot air device 14 includes an air guide hood 15, an air inlet 16 disposed on the top of the air guide hood 15, a fan 17 fixedly installed at the air inlet 16 on the top of the air guide hood 15, a first air outlet 18 and a second air outlet 19 disposed on the lower side of the air guide hood 15, a first air duct 20 disposed inside the air guide hood 15 to connect the air inlet 16 and the first air outlet 18, a second air duct 21 disposed inside the air guide hood 15 to connect the air inlet 16 and the second air outlet 19, a first electric heating tube 22 installed inside the first air duct 20, a second electric heating tube 23 installed inside the second air duct 21, a first opening and closing door 24 disposed at the first air outlet 18, and a second opening and closing door 25 disposed at the first air outlet 18. The first air duct 20 is wrapped with a first insulation cotton layer, and the second air duct 21 is wrapped with a second insulation cotton layer.
[0023] The drying hood 11 has a first opening 26 and a second opening at positions corresponding to the first air outlet 18 and the second air outlet 19 on its first and second side walls.
[0024] When using the heat-insulating and waterproof drying device of this utility model, the workpiece 13 is placed in the drying chamber 12. After a series of cleaning operations, the fan 17 is started. The fan 17 starts to rotate, and the airflow generated blows into the drying chamber 12 through the first air duct 20 and the second air duct 21. After the fan 17 starts running, the first electric heating tube 22 and the second electric heating tube 23 are powered on. The first electric heating tube 22 and the second electric heating tube 23 start to heat up. At the same time, the first opening and closing door 24 and the second opening and closing door 25 are blown open by the strong wind generated by the fan 17 as the fan 17 starts. The drying process of the workpiece 13 begins. After a predetermined time, the power supply of the first electric heating tube 22 and the second electric heating tube 23 is cut off. The first electric heating tube 22 and the second electric heating tube 23 stop heating. Then the fan 17 is stopped. The first opening and closing door 24 and the second opening and closing door 25 automatically close due to the shutdown of the fan 17 and their own gravity. The drying process ends.
[0025] In this application, by placing the first air outlet 18 and the second air outlet 19 below the air inlet 16 and the fan 17, and closing the first air outlet 18 and the second air outlet 19 through the first opening and closing door 24 and the second opening and closing door 25, moisture can be prevented from entering the ventilation duct and reaching the motor of the fan 17 during the cleaning process of the workpiece 13. Installing the hot air device 14 on both sides of the drying chamber 12 allows the drying process to proceed evenly from both sides of the workpiece 13 simultaneously, shortening the drying time and improving the drying effect. By wrapping the first air duct 20 and the second air duct 21 with the first and second insulation cotton layers, heat loss can be effectively prevented during the drying process, improving energy efficiency, saving resources, and reducing costs. Simultaneously, distributing the first electric heating tube 22 and the second electric heating tube 23 on both sides of the fan 17 effectively prevents the generated heat from directly baking the motor of the fan 17, thus affecting the motor's operating environment.
[0026] Furthermore, the first opening and closing door 24 and the second opening and closing door 25 are electrically operated or gravity-operated opening and closing doors.
[0027] Preferably, the first opening / closing door 24 and the second opening / closing door 25 are gravity-operated opening / closing doors. Under normal conditions, the first opening / closing door 24 and the second opening / closing door 25 remain closed under their own weight, at which time the first air outlet 18 and the second air outlet 19 are closed. When the fan 17 is started, the first opening / closing door 24 and the second opening / closing door 25 are blown open by the wind, and the airflow flows out.
[0028] Preferably, the air guide shroud 15 includes a main body 27, an air outlet 28, and an arc-shaped connecting part 29 connecting the main body 27 and the air outlet 28. The air inlet 16 is located at the top center of the main body 27, and the first air outlet 18 and the second air outlet 19 are respectively located on both sides of the air outlet 28. The air outlet 28 is located below the main body 27.
[0029] By placing the first air outlet 18 and the second air outlet 19 below the main body 27 and the air inlet 16, water can be prevented from entering the fan 17 through the first air outlet 18 and the second air outlet 19.
[0030] Furthermore, the air inlet 16 is provided with a first air guide plate 30 and a second air guide plate 31 that guide the airflow generated by the fan 17 to the first air duct 20 and the second air duct 21 respectively.
[0031] Specifically, the first air duct 20 is provided with a first mounting plate 32 for fixing the first electric heating tube 22, and the first mounting plate 32 is fixedly installed inside the first air duct 20. The second air duct 21 is provided with a second mounting plate 33 for fixing the second electric heating tube 23, and the second mounting plate 33 is fixedly installed inside the second air duct 21. The outer wall of the air guide shroud 15 is provided with a first protective cover 34 at a position corresponding to the first mounting plate 32 to protect the wiring terminals of the first electric heating tube 22, and the outer wall of the air guide shroud 15 is provided with a second protective cover 35 at a position corresponding to the second mounting plate 33 to protect the wiring terminals of the second electric heating tube 23.
[0032] To reduce vibration and noise, an annular shock-absorbing rubber pad 36 is provided between the fan 17 and the periphery of the air inlet 16.
[0033] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A heat-insulating and waterproof drying device, characterized in that, The drying device includes a drying hood, a drying chamber disposed inside the drying hood for placing and drying workpieces, and a hot air device fixed on the first and second sides of the drying hood and communicating with the drying chamber. The hot air device includes an air guide hood, an air inlet disposed on the top of the air guide hood, a fan fixedly installed at the air inlet on the top of the air guide hood, a first air outlet and a second air outlet disposed on the lower side of the air guide hood, a first air duct disposed inside the air guide hood for connecting the air inlet and the first air outlet, a second air duct disposed inside the air guide hood for connecting the air inlet and the second air outlet, a first electric heating tube installed inside the first air duct, a second electric heating tube installed inside the second air duct, a first opening and closing door disposed at the first air outlet, and a second opening and closing door disposed at the first air outlet. The first air duct is wrapped with a first insulation cotton layer, and the second air duct is wrapped with a second insulation cotton layer. The drying hood has a first opening and a second opening at positions corresponding to the first air outlet and the second air outlet on its first and second side walls.
2. The heat-insulating and waterproof drying device according to claim 1, characterized in that, The first and second doors are either electrically operated or gravity-operated.
3. The heat-insulating and waterproof drying device according to claim 1, characterized in that, The air guide shroud includes a main body, an air outlet, and an arc-shaped connecting part that connects the main body and the air outlet. The air inlet is located at the top center of the main body, and the first air outlet and the second air outlet are respectively located on both sides of the air outlet. The air outlet is located below the main body.
4. The heat-insulating and waterproof drying device according to claim 1, characterized in that, The air inlet is equipped with a first air guide plate and a second air guide plate to guide the airflow generated by the fan to the first air duct and the second air duct, respectively.
5. The heat-insulating and waterproof drying device according to claim 1, characterized in that, The first air duct is provided with a first mounting plate for fixing the first electric heating tube, and the first mounting plate is fixedly installed inside the first air duct. The second air duct is provided with a second mounting plate for fixing the second electric heating tube, and the second mounting plate is fixedly installed inside the second air duct.
6. The heat-insulating and waterproof drying device according to claim 5, characterized in that, A first protective cover is provided on the outer wall of the air guide shroud at a position corresponding to the first mounting plate to protect the wiring terminal of the first electric heating tube, and a second protective cover is provided on the outer wall of the air guide shroud at a position corresponding to the second mounting plate to protect the wiring terminal of the second electric heating tube.
7. The heat-insulating and waterproof drying device according to claim 1, characterized in that, An annular shock-absorbing rubber pad is provided between the fan and the periphery of the air inlet.