Regenerative cycle type vehicle-mounted drying device

Abstract

The utility model relates to a regenerative cycle type vehicle-mounted drying device which comprises a gas inlet end, a gas outlet end and a gas outlet end, the drying chamber is located below the air inlet end and connected with the air inlet end, an upper cover plate and a lower cover plate are arranged at the two ends of the drying chamber respectively, a cavity is formed between the upper cover plate and the lower cover plate and used for being filled with a drying medium with the capacity of adsorbing water vapor in compressed air, and a heating film used for heating the drying medium and desorbing the adsorbed water vapor is arranged on the inner wall of the drying chamber; and the air outlet end is positioned at the lower end of the drying chamber, is connected with the drying chamber and comprises a first air outlet through which the compressed air after adsorption flows out and a second air outlet through which the compressed air after desorption flows out. Compared with the prior art, the device has the advantages that the cleanness and dryness of compressed air are ensured, moisture and impurities can be removed before the compressed air enters a suspension system, and the device can recycle a drying medium and reduce maintenance requirements through a regeneration technology.

Description

Technical Field

[0001] This utility model relates to the field of air drying technology, and in particular to a regenerative and circulating vehicle-mounted drying device. Background Technology

[0002] Air suspension is a suspension system that uses compressed air as the elastic medium. It automatically adjusts the vehicle's height according to driving conditions, providing better shock absorption and thus improving vehicle stability, resulting in a more comfortable driving experience. Originally used in trains and heavy trucks to reduce impacts and vibrations during heavy transport, air suspension has been increasingly applied to various vehicles, including buses, coaches, trucks, SUVs, high-end sedans, and RVs, and even in off-road vehicles and racing cars. However, after prolonged operation and frequent adjustments, the accumulation of impurities and moisture within the air suspension system can accelerate component aging. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art by providing a regenerative and circulating vehicle-mounted drying device that ensures the cleanliness and dryness of compressed air. It can remove moisture and impurities before the compressed air enters the suspension system, and through regeneration technology, the device can recycle the drying medium, reducing maintenance requirements.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A regenerative, reusable vehicle-mounted drying device includes:

[0006] Intake end;

[0007] The drying chamber located below and connected to the air inlet has an upper cover plate and a lower cover plate at its two ends, and a cavity is formed between the upper cover plate and the lower cover plate for filling with a drying medium that has the ability to adsorb water vapor in compressed air. The inner wall of the chamber is provided with a heating film for heating the drying medium and desorbing the adsorbed water vapor.

[0008] And an air outlet located at and connected to the lower end of the drying chamber, which includes a first air outlet for compressed air to flow out after adsorption and a second air outlet for compressed air to flow out after desorption.

[0009] Furthermore, the air inlet is connected to the cavity through the upper cover plate to allow gas to flow;

[0010] The air outlet passes through the lower cover plate and is connected to the cavity to allow gas to flow.

[0011] Furthermore, the heating film is a PI heating film with a thickness of 0.03-0.5 mm, a power of 80-100 W, and a heating temperature of 80-90 °C.

[0012] Furthermore, the heating film is connected to an electrode for heating the heating film, and the electrode is connected to a power source.

[0013] Furthermore, the heating film is in close contact with the inner wall of the drying chamber.

[0014] Furthermore, the outer wall of the drying chamber is provided with a heat insulation layer.

[0015] Furthermore, the air outlet also includes a main pipe connected to the drying chamber, which is connected to the first air outlet and the second air outlet via a three-way valve.

[0016] Furthermore, the lower end of the upper cover plate and the upper end of the lower cover plate are respectively provided with filter sheets to prevent the drying medium from flowing out.

[0017] Furthermore, a pre-compression spring is provided at the upper end of the upper cover plate for pressing down on the upper cover plate and pressing it against the drying medium. The compression distance of the general pre-compression spring is 0.2 to 1 mm. Its compression process will cause at most 0.2 to 1 mm of wear on the heating film, without squeezing the heating film. In practical applications, this situation can also be avoided by reducing the size of the heating film and reserving the amount of compression.

[0018] Furthermore, the drying medium includes molecular sieves and silica gel, which can be used alone or in combination.

[0019] Furthermore, the vehicle-mounted drying device also includes a filter chamber for filtering compressed air, with its two ends connected to the air inlet and the drying chamber, respectively.

[0020] Furthermore, a filter element is provided inside the filter chamber.

[0021] Furthermore, the vehicle-mounted drying device also includes an outer casing, in which the filter chamber and the drying chamber are both located, integrating them into a single space.

[0022] Furthermore, the vehicle-mounted drying device is connected to other components via fasteners to achieve installation of the vehicle-mounted drying device on the vehicle body.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] (1) The vehicle-mounted drying device of this utility model can remove moisture and impurities before compressed air enters the suspension system. Through regeneration technology, the device can continuously recycle the drying medium, reducing maintenance requirements. It avoids corrosion of air suspension components caused by moisture, extends the service life of the air suspension system, reduces failures caused by component wear and aging, ensures sensitive suspension system response, and improves system stability and durability.

[0025] (2) In the vehicle-mounted drying device of this utility model, since the adsorption capacity of the drying medium is reduced, the adsorption performance of the drying medium for compressed air can be restored by heating the drying medium to regenerate it at high temperature, thereby extending the service life of the vehicle-mounted drying device. Moreover, the drying medium can be recycled, reducing maintenance requirements and costs, and is environmentally friendly.

[0026] (3) This utility model utilizes a heating film to heat the drying medium. The heating film has the characteristics of low power consumption, high efficiency, no noise, and small size. It does not occupy the space of the drying medium and has a wide heating coverage and high uniformity. At the same time, since the control voltage of the heating film is low, it can be adapted to the voltage of most vehicle terminals and has strong universality.

[0027] (4) Compared with the design scheme of placing the heating film tightly against the inner wall of the drying chamber, which places the heating film inside the central tube, this utility model simplifies the design structure, saves material costs, and reduces installation difficulty.

[0028] (5) In this invention, the heating film is closely attached to the inner wall of the drying chamber. With the cooperation of the outer insulation layer, the heat utilization rate is maximized and more energy is saved.

[0029] (6) This utility model combines the drying chamber and the filter chamber with filter element inside, increases the function of clean compression process, maximizes the use of space, and has a high degree of device integration. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the regenerative circulating vehicle-mounted drying device shown in Example 1.

[0031] Explanation of markings in the diagram:

[0032] 1-Intake end;

[0033] 2-Filter chamber, 21-Filter element;

[0034] 3-Drying chamber, 31-Drying medium, 32-Heating film, 33-Fixed component, 34-Filter sheet, 35-Pre-compression spring, 36-Electrode, 37-Insulation layer, 38-Upper cover plate, 39-Lower cover plate;

[0035] 4-Air outlet, 41-First air outlet, 42-Second air outlet, 43-Main pipeline, 44-Three-way valve;

[0036] 5-Outer shell. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments. In the following embodiments or examples, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0038] It should be noted that in the description of this utility model, the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Example 1

[0041] A regenerative, cyclical vehicle-mounted drying device, such as Figure 1 As shown, it includes:

[0042] Inlet end 1;

[0043] The drying chamber 3 is located below and connected to the air inlet 1. It has an upper cover plate 38 and a lower cover plate 39 at its two ends. A cavity is formed between the upper cover plate 38 and the lower cover plate 39 for filling with a drying medium 31 that has the ability to adsorb water vapor in compressed air. The inner wall of the drying medium 31 is provided with a heating film 32 for heating the drying medium 31 and desorbing the adsorbed water vapor.

[0044] And an air outlet 4 located at the lower end of the drying chamber 3 and connected thereto, which includes a first air outlet 41 for compressed air to flow out after adsorption and a second air outlet 42 for compressed air to flow out after desorption.

[0045] In this embodiment, the air inlet 1 passes through the upper cover plate 38 and is connected to the cavity to allow gas to flow; the air outlet 4 passes through the lower cover plate 39 and is connected to the cavity to allow gas to flow.

[0046] In this embodiment, the heating film 32 is a PI heating film with a thickness of 0.2 mm, a power of 80 W, and a heating temperature of 80 °C. The heating film 32 can achieve rapid heating with low power, and can heat the heating film 32 in sequence, and heat the drying medium 31 to the desorption temperature within 12 V for 2 minutes. In addition, there is no noise throughout the heating process.

[0047] In this embodiment, the heating film 32 is connected to an electrode 36 for heating the heating film 32, and the electrode 36 is connected to a power source. The heating film 32 is electrically connected to the electrode 36, and the two terminals of the heating film 32 are respectively connected to the positive and negative terminals of the electrode 36.

[0048] In this embodiment, the heating film 32 is closely attached to the inner wall of the drying chamber 3. Compared with placing the heating film 32 inside the drying chamber 3, this simplifies the design structure, saves material costs, and reduces installation difficulty.

[0049] In this embodiment, the outer wall of the drying chamber 3 is provided with a heat insulation layer 37, which can effectively improve the heat utilization rate.

[0050] In this embodiment, the air outlet 4 also includes a main pipe 43 connected to the drying chamber 3. It is connected to the first air outlet 41 and the second air outlet 42 through a three-way valve 44, so that the adsorbed compressed air and the desorbed compressed air can go to different places, so that the regeneration process of the drying medium 31 does not affect the adsorption process.

[0051] In this embodiment, the lower end of the upper cover plate 38 and the upper end of the lower cover plate 39 are respectively provided with filter sheets 34 to prevent the drying medium 31 from flowing out. The filter 34 is purchased from Guangzhou Sanli Nonwoven Fabric Co., Ltd., model 3LAKM400LL. This is because when compressed air flows in, the drying medium 31 will undergo a certain amount of collision and friction in the drying chamber 3. After long-term use, this will have a certain impact on the structural strength of the drying medium 31, thereby producing a certain amount of powdery material. After setting the filter sheet 34, the powdery material can be prevented from flowing out from the air outlet 4 during the compressed air flow, thus avoiding any impact on subsequent devices.

[0052] In this embodiment, a pre-compression spring 35 is provided at the upper end of the upper cover plate 38 to press down on the upper cover plate 38 and press it tightly against the drying medium 31. This compresses the drying medium 31, reducing particle collisions. Furthermore, when powdery substances are generated, the porosity of the drying medium 31 increases, intensifying particle collisions. The pre-compression spring 35 actively compresses the drying medium 31 when its porosity changes, thereby reducing particle collisions. The pre-compression spring 35 is positioned above the filter sheet 34 above the drying chamber 3, and its movement causes the filter sheet 34 to move along with it.

[0053] In this embodiment, the drying medium 31 is silica gel.

[0054] In this embodiment, the vehicle-mounted drying device also includes a filter chamber 2 for filtering compressed air. The two ends of the filter chamber 2 are connected to the air inlet 1 and the drying chamber 3, respectively, which can filter impurities in the compressed air and prevent them from affecting the drying chamber 3 and subsequent devices.

[0055] In this embodiment, a filter element 21 is provided inside the filter chamber 2.

[0056] In this embodiment, the vehicle-mounted drying device further includes an outer shell 5, and the filter chamber 2 and the drying chamber 3 are both located inside the outer shell 3, so that they are integrated into one space.

[0057] In this embodiment, the vehicle-mounted drying device is connected to other components via a fastener 33 to achieve installation of the vehicle-mounted drying device on the vehicle body.

[0058] In this embodiment, the operation process of the vehicle-mounted drying device is as follows:

[0059] Moist compressed air containing impurities enters from the inlet 1, first passes through the filter chamber 2, where the filter element 21 removes the impurities, and then enters the drying chamber 3. The drying medium 31 adsorbs the water vapor in the moist compressed air, thereby obtaining clean and dry compressed air. The clean and dry compressed air passes through the main pipe 43 and is controlled by the three-way valve 44 to flow out from the first outlet 41, completing the adsorption process.

[0060] As the vehicle-mounted drying device is used for an extended period, the adsorption capacity of the drying medium 31 gradually becomes saturated, and the adsorption rate gradually decreases. To meet the design requirements of cost reduction and environmental protection, this invention incorporates a recyclable function. When the vehicle-mounted drying device can no longer meet the design requirements for drying effect, power is applied to instantly heat the heating film 32 to 100°C. After 12V for 2 minutes, the drying medium 31 heats up and is kept warm by the insulation layer 37. Due to the increased temperature, water vapor on the surface begins to desorb. At this time, low-humidity gas is introduced from the air inlet 1 to carry away the water vapor desorbed from the drying medium 31. The gas flows out from the second air outlet 42 through the main pipe 43 and the three-way valve 44, completing the regeneration of the drying medium 31.

[0061] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A regenerative, circulating vehicle-mounted drying device, characterized in that, include: Inlet end (1); The drying chamber (3) located below and connected to the air inlet (1) has an upper cover plate (38) and a lower cover plate (39) at its two ends respectively. A cavity is formed between the upper cover plate (38) and the lower cover plate (39) for filling with a drying medium (31) that has the ability to adsorb water vapor in compressed air. A heating film (32) is provided on its inner wall for heating the drying medium (31) and desorbing the water vapor it adsorbs. And an air outlet (4) located at the lower end of the drying chamber (3) and connected thereto, which includes a first air outlet (41) for compressed air to flow out after adsorption and a second air outlet (42) for compressed air to flow out after desorption.

2. The regenerative circulating vehicle-mounted drying device according to claim 1, characterized in that, The heating film (32) is a PI heating film with a thickness of 0.03-0.5 mm, a power of 80-100 W, and a heating temperature of 80-90 °C.

3. The regenerative circulating vehicle-mounted drying device according to claim 1, characterized in that, The heating film (32) is connected to an electrode (36) for heating the heating film (32), and the electrode (36) is connected to a power source.

4. The regenerative circulating vehicle-mounted drying device according to claim 1, characterized in that, The heating film (32) is in close contact with the inner wall of the drying chamber (3).

5. A regenerative, circulating vehicle-mounted drying device according to claim 1, characterized in that, The outer wall of the drying chamber (3) is provided with a heat insulation layer (37).

6. The regenerative circulating vehicle-mounted drying device according to claim 1, characterized in that, The air outlet (4) also includes a main pipe (43) connected to the drying chamber (3), which is connected to the first air outlet (41) and the second air outlet (42) through a three-way valve (44).

7. A regenerative, circulating vehicle-mounted drying device according to claim 1, characterized in that, The lower end of the upper cover plate (38) and the upper end of the lower cover plate (39) are respectively provided with filter sheets (34) for preventing the drying medium (31) from flowing out.

8. A regenerative, circulating vehicle-mounted drying device according to claim 1, characterized in that, The upper end of the upper cover plate (38) is provided with a preload spring (35) for pressing down the upper cover plate (38) and pressing it against the drying medium (31).

9. A regenerative, circulating vehicle-mounted drying device according to claim 1, characterized in that, The drying medium (31) includes molecular sieves and silica gel.

10. A regenerative, circulating vehicle-mounted drying device according to claim 1, characterized in that, The vehicle-mounted drying device also includes a filter chamber (2) for filtering compressed air, which is equipped with a filter element (21); The two ends of the filter chamber (2) are connected to the air inlet (1) and the drying chamber (3), respectively.

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