Dryer structure

Abstract

The utility model relates to the technical field of dryers, in particular to a dryer structure which comprises a shell internally provided with at least one cavity. A filtering assembly is arranged in the cavity; the shell is provided with an air inlet hole and an air outlet hole which are respectively communicated with the cavity, and the air inlet hole and the air outlet hole are respectively positioned at two ends of the filtering assembly; and a throttle valve is arranged at the air outlet hole, and the flow of air passing through the throttle valve in unit time can be adjusted. According to the dryer, the throttling valve is arranged, so that the flow of air passing through the air outlet hole in unit time is smaller, in the regeneration process of the dryer, the flow speed of high-pressure air in the air storage tank is higher when the high-pressure air enters the cavity through the throttling valve and the air outlet hole, the impact force on the filtering assembly is larger, and therefore the drying efficiency is improved. Therefore, the effect of taking away moisture and / or grease on the filtering assembly can be further improved, regeneration of the dryer is more thorough, and the adsorption capacity can be better recovered.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dryer technical field, specifically, relate to a dryer structure. BACKGROUND

[0002] With the rapid development of new energy vehicles, in many cases, the vehicle still needs to use air as medium, such as air suspension system. In order to ensure the normal operation of the vehicle system, it must be kept relatively dry inside, so the air path must have a dryer to absorb moisture in the air path and ensure that the system will not fail due to moisture blockage or rust.

[0003] An excellent air system usually has an electrically controlled full-automatic regeneration function, rather than replacing the dryer manually to achieve regeneration, because manual method not only consumes time and effort, but also is difficult to ensure that the dryer restores the water absorption capacity in time. For today's new energy vehicles that rarely need to go to a maintenance store for maintenance, it is even more difficult to realize the regeneration of the system in time, and thus the dryness of the air path cannot be guaranteed. SUMMARY

[0004] In view of the above problems existing in the prior art, the utility model provides a dryer structure.

[0005] In order to solve the above technical problems, the utility model solves them through the following technical schemes:

[0006] A dryer structure comprises a shell with at least one chamber inside; a filter assembly is arranged in the chamber; an air inlet hole and an air outlet hole are arranged on the shell and communicate with the chamber respectively, and the air inlet hole and the air outlet hole are respectively located at both ends of the filter assembly; a throttle valve is arranged at the air outlet hole, and the flow of gas passing through the throttle valve per unit time is adjustable.

[0007] As a preferred, an exhaust port is arranged on the shell and communicates with the chamber; a first cover capable of plugging the exhaust port is fixedly installed on the shell by bolts.

[0008] As a preferred, the first cover is pressed on the exhaust port by a first sealing element.

[0009] As a preferred, in the axial direction of the chamber, the chamber is open at one end of the shell; a second cover capable of plugging the opening of the chamber is fixedly installed on the shell by bolts.

[0010] As a preferred, the second cover is pressed on the opening of the chamber by a second sealing element.

[0011] As preferred, the number of the chambers is multiple; the second cover is provided with a pressing groove, and the second sealing element is arranged in the pressing groove;

[0012] When the second cover is mounted on the shell, the second cover can simultaneously seal the multiple chambers through the second sealing element.

[0013] As preferred, an elastic element is arranged between the filter assembly and the second cover.

[0014] As preferred, a stop block is arranged on the inner side wall of the chamber, and when the second cover is mounted on the shell, the second cover presses the filter assembly on the stop block through the elastic element.

[0015] The air inlet hole or the air outlet hole is located on the side of the stop block away from the filter assembly.

[0016] As preferred, the filter assembly comprises at least one of a molecular sieve, a non-woven fabric and a barrier net.

[0017] As preferred, the throttle valve comprises a first mesh plate fixedly mounted on the air outlet hole and a second mesh plate rotatably matched with the first mesh plate.

[0018] The rotation of the second mesh plate relative to the first mesh plate can realize the adjustment of the flow rate of the gas passing through the throttle valve 131 per unit time.

[0019] The utility model at least has the following beneficial effects:

[0020] The application is provided with the throttle valve, so that the flow rate of the gas passing through the air outlet hole per unit time is smaller, and the high-pressure gas in the gas tank flows faster when passing through the throttle valve and the air outlet hole into the chamber during the regeneration process of the dryer, so that the impact force on the filter assembly is larger, which can further improve the effect of taking away the moisture and / or grease on the filter assembly, and thus the regeneration of the dryer is more thorough, and the adsorption capacity can be better recovered. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The schematic diagram of the dryer in some embodiments of the application is shown;

[0022] Figure 2 The cross-sectional view of the dryer in some embodiments of the application is shown;

[0023] Figure 3 The cross-sectional view of the shell in some embodiments of the application is shown;

[0024] Figure 4 The schematic diagram of the dryer without the first cover in some embodiments of the application is shown;

[0025] Figure 5 A schematic view of the first cover and the first sealing element in some embodiments of the present application is shown in FIG. 1;

[0026] Figure 6 A schematic view of the first cover and the first sealing element in some embodiments of the present application is shown in FIG. 1;

[0027] Figure 7 A schematic view of the second cover in some embodiments of the present application is shown in FIG. 2;

[0028] Figure 8 A schematic view of the second cover and the second sealing element in some embodiments of the present application is shown in FIG. 3;

[0029] Figure 9 A schematic view of the first mesh plate and the second mesh plate of the throttle valve in some embodiments of the present application is shown in FIG. 4;

[0030] Figure 10 An exploded view of the dryer in some embodiments of the present application is shown in FIG. 5.

[0031] The parts referred to by the reference numbers in the drawings are as follows:

[0032] 10, first sealing element; 20, second sealing element; 100, housing; 110, chamber; 111, filter assembly; 111a, molecular sieve; 111b, non-woven fabric; 111c, blocking mesh; 112, elastic element; 113, blocking block; 120, air inlet hole; 130, air outlet hole; 131, throttle valve; 131a, first mesh plate; 131b, second mesh plate; 131c, first through hole; 131d, second through hole; 140, air outlet; 141, first pressing block; 150, second pressing block; 200, first cover; 210, first pressing groove; 300, second cover; 310, second pressing groove; 320, limiting block. DETAILED DESCRIPTION

[0033] For a further understanding of the present application, reference will be made to the following description taken in conjunction with the accompanying drawings. It should be understood that the embodiments are merely illustrative of the present application and should not be construed as limiting.

[0034] As Figures 1-8 and Figure 10As shown, the embodiment provides a dryer structure which can be applied in an air suspension system of a vehicle or other air system which needs to use air as medium. The embodiment takes the application of the dryer in the air suspension system of the vehicle as an example, the air inlet hole 120 of the dryer is connected with the external environment through a pump body (not shown in the figure), the air outlet hole 130 of the dryer is connected with a gas tank (not shown in the figure) of the vehicle, further, the air in the external environment can be processed by the pump body to form high-pressure gas and enter the dryer through the air inlet hole 120, and then is supplemented to the gas tank from the air outlet hole 130 of the dryer for use when the air suspension system works.

[0035] Further, the dryer in the embodiment includes a shell 100, and at least one chamber 110 arranged in the shell 100, a filter assembly 111 is arranged in the chamber 110, which can filter water and / or grease in the passing gas; the air inlet hole 120 and the air outlet hole 130 of the dryer are both arranged on the shell 100, and the air inlet hole 120 and the air outlet hole 130 are both connected with the chamber 110, so that the air inlet hole 120 and the air outlet hole 130 can both meet the gas in and out of the chamber 110. Further, the positions of the air inlet hole 120 and the air outlet hole 130 are respectively at both ends of the filter assembly 111, so that after the pump body processes the air in the external environment to form high-pressure gas and delivers it to the chamber 110 through the air inlet hole 120, the high-pressure gas can flow towards the air outlet hole 130 at the other end of the filter assembly 111 through the filter assembly 111 in the chamber 110, so that the high-pressure gas is processed by the filter assembly 111, and then the processed high-pressure gas can be discharged from the dryer through the air outlet hole 130 and supplemented to the gas tank.

[0036] Further, a throttle valve 131 is installed on the air outlet hole 130, and the gas at the air outlet hole 130 needs to pass through the throttle valve 131 to realize the in and out of the chamber 110. It should be noted that the flow rate of the gas passing through the throttle valve 131 per unit time is smaller than that of the air inlet hole 120 per unit time, so that the gas passing through the throttle valve 131 can have a faster flow rate and a certain impact force.

[0037] In the air suspension system of the automobile, when the gas tank is full of high-pressure gas and the high-pressure gas in the gas tank cannot be used due to problems, the high-pressure gas in the gas tank needs to be discharged. In this process, the high-pressure gas in the gas tank reverses through the air outlet hole 130 into the dryer, and then is discharged to the outside environment from the air inlet hole 120 of the dryer. It is worth mentioning that the discharge process of the high-pressure gas in the gas tank also regenerates the dryer. Specifically, because the high-pressure gas has a certain pressure compared with the air in the outside environment, when the high-pressure gas enters the dryer through the air outlet hole 130, it can have a relatively fast flow rate and a certain impact force. It can be understood that when the high-pressure gas is supplemented to the gas tank, the gas enters the dryer from the air inlet hole 120 and flows to the air outlet hole 130 through the filter assembly 111. Therefore, the moisture and / or oil in the gas is basically attached to one side of the filter assembly 111 close to the air inlet hole 120. When the dryer is regenerated, the high-pressure gas in the gas tank enters the dryer from the air outlet hole 130 and flows to the air inlet hole 120 through the filter assembly 111. Under the action of the relatively fast flow rate and the certain impact force of the high-pressure gas, the high-pressure gas can carry away at least part of the moisture and / or oil on the filter assembly 111, so that the moisture and / or oil is discharged to the outside of the dryer through the air inlet hole 120 along with the high-pressure gas, thereby realizing the automatic regeneration of the dryer and restoring the better adsorption capacity of the dryer.

[0038] It can be understood that by setting the throttle valve 131, the flow rate of the air outlet hole 130 for the gas to pass through per unit time is smaller, so that in the regeneration process of the dryer, the high-pressure gas in the gas tank has a faster flow rate and a greater impact force on the filter assembly 111 when passing through the throttle valve 131 and the air outlet hole 130 into the cavity 110, so that the effect of carrying away the moisture and / or oil on the filter assembly 111 can be further improved, thereby making the regeneration of the dryer more complete and the adsorption capacity can be better restored.

[0039] Further, the flow rate of the throttle valve 131 provided on the air outlet hole 130 for the gas to pass through per unit time can be adjusted, so that the rate and impact force of the high-pressure gas in the gas tank when entering the cavity 110 can be adjusted according to the actual use. When the rate and impact force of the high-pressure gas when entering the cavity 110 decrease, the regeneration efficiency of the dryer becomes slower, and when the rate and impact force of the high-pressure gas when entering the cavity 110 increase, the regeneration efficiency of the dryer becomes faster, which is convenient for use and can adjust the regeneration efficiency of the dryer.

[0040] In some embodiments, an exhaust port 140 is formed on the shell 100 and communicates with the chamber 110 in the shell 100; a first cover 200 is also fixedly installed on the shell 100 by bolts, and the first cover 200 can block the exhaust port 140 when it is installed on the shell 100 to prevent gas in the chamber 110 from leaking out of the shell 100.

[0041] It should be noted that when the gas pressure in the gas storage tank and / or the dryer is high enough to pose a safety risk, the first cover 200 on the shell 100 can be opened, so that the high-pressure gas in the gas storage tank and / or the dryer can be discharged in time through the exhaust port 140 and out of the dryer, thereby avoiding the occurrence of high-pressure explosion.

[0042] In some embodiments, a first sealing member 10 is provided on the first cover 200 and / or the exhaust port 140, and the first cover 200 is indirectly pressed on the exhaust port 140 through the first sealing member 10 when the first cover 200 is installed on the shell 100 to block the exhaust port 140.

[0043] Further, a first pressing block 141 in the form of a ring is provided on the shell 100 in the circumferential direction of the exhaust port 140, and a first pressing groove 210 in the form of a ring is provided on the first cover 200, and when the first cover 200 is installed on the shell 100, the first pressing block 141 can extend into the first pressing groove 210. Specifically, the first sealing member 10 is provided on the first pressing groove 210 and / or the first pressing block 141, so that after the first pressing block 141 extends into the first pressing groove 210, the first pressing block 141 and the first pressing groove 210 can press the first sealing member 10, thereby achieving the sealing of the exhaust port 140 by the first cover 200 to prevent the leakage of gas in the chamber 110.

[0044] It can be understood that since the first pressing block 141 presses the first sealing member 10 in the first pressing groove 210 in the installed state, the first pressing block 141 and the first pressing groove 210 can cooperate with each other to limit the first sealing member 10, so as to avoid the mispositioning of the first sealing member 10 during installation or use, and to better improve the stability of the sealing of the exhaust port 140.

[0045] Further, the first sealing member 10 can be an object with certain elastic properties such as a rubber ring or an air bag, as long as it can achieve the sealing of the exhaust port 140, which is not particularly limited here.

[0046] In some embodiments, the chamber 110 in the shell 100 is cylindrically shaped and extends in one direction, and the chamber 110 is open at one end of the shell 100 in the axial direction of the chamber 110. A second cover 300 is also fixedly installed on the shell 100 by bolts, and when the second cover 300 is fixedly installed on the shell 100, the second cover 300 can seal the opening of the chamber 110 to prevent gas in the chamber 110 from leaking out of the shell 100.

[0047] It can be understood that when the dryer is produced and assembled, the second cover 300 can be detached from the shell 100, the filter assembly 111 can be installed in the chamber 110 through the opening of the chamber 110, and then the second cover 300 can be installed on the shell 100, which can facilitate the disassembly, replacement and maintenance of the filter assembly 111 in the chamber 110.

[0048] In some embodiments, a second sealing member 20 is arranged on the second cover 300 and / or the opening of the chamber 110, and when the second cover 300 is installed on the shell 100, the second cover 300 is indirectly pressed on the opening of the chamber 110 through the second sealing member 20 to seal the opening of the chamber 110.

[0049] Further, a second pressing block 150 in the form of a ring is arranged on the shell 100 along the circumferential direction of the opening of the chamber 110, and a second pressing groove 310 in the form of a ring is arranged on the second cover 300, and when the second cover 300 is installed on the shell 100, the second pressing block 150 can extend into the second pressing groove 310. Further, the second sealing member 20 is arranged on the second pressing block 150 and / or the second pressing groove 310, so that after the second pressing block 150 extends into the second pressing groove 310, the second pressing block 150 and the second pressing groove 310 can press the second sealing member 20, thereby realizing the sealing of the opening of the chamber 110 by the second cover 300 to prevent the leakage of gas in the chamber 110.

[0050] It can be understood that since in the installed state, the second pressing block 150 presses the second sealing member 20 in the second pressing groove 310, the second pressing block 150 and the second pressing groove 310 can cooperate with each other to limit the second sealing member 20, so as to avoid the mispositioning of the second sealing member 20 during installation or use, and to preferably improve the stability of the sealing of the opening of the chamber 110.

[0051] Further, the second sealing member 20 can be an object with certain elastic properties such as a rubber ring or an air bag, as long as it can realize the sealing of the opening of the chamber 110, which is not particularly limited here.

[0052] In some embodiments, the chamber 110 in the shell 100 is provided in plurality, for example, in the present embodiment, the number of chambers 110 is provided as two, and the two chambers 110 are provided with openings on the same end of the shell 100. Further, the second pressing block 150 in the form of an incomplete ring is provided on the opening of the two chambers 110, and the two second pressing blocks 150 are connected end to end to form a complete ring structure, and the second pressing groove 310 in the form of an incomplete ring is also provided on the second cover 300, and the two second pressing grooves 310 are connected end to end to form a complete ring structure, when the second cover 300 is installed on the shell 100, the second pressing block 150 in the form of a complete ring structure can correspondingly extend into the second pressing groove 310 in the form of a complete ring structure. Further, the second sealing member 20 is also a complete ring structure formed by two incomplete ring structures connected end to end, so that the second sealing member 20 can be placed on the second pressing groove 310 and / or the second pressing block 150, so that after the second pressing block 150 extends into the second pressing groove 310, the second pressing block 150 and the second pressing groove 310 can extrude the second sealing member 20, thereby preferably realizing the sealing of the openings of the two chambers 110 at the same time.

[0053] It should be noted that if the openings of the two chambers 110 are respectively sealed by independent second pressing blocks 150, second pressing grooves 310 and second sealing members 20, due to long-term use, the second cover 300 is prone to aging deformation, which is easy to cause leakage of one of the chambers 110, and the openings of the two chambers 110 are sealed by the integrated second pressing block 150, second pressing groove 310 and second sealing member 20, even if the second cover 300 is deformed due to aging, it will not cause leakage of the chamber 110, but only promote the mutual flow of the gases in the two chambers 110, and the safety and stability are better.

[0054] In some embodiments, when the dryer is in an assembled state, the elastic member 112 is provided between the filter assembly 111 in the chamber 110 and the second cover 300. Specifically, after the filter assembly 111 is placed into the chamber 110 through the opening of the chamber 110, the elastic member 112 is then put into the chamber 110, and then the second cover 300 is fixedly installed on the shell 100 by bolts, so that the second cover 300 can extrude the elastic member 112, and then through the compression of the elastic member 112, the elastic member 112 can press the filter assembly 111 in the chamber 110, thereby improving the stability of the installation of the filter assembly 111 in the chamber 110.

[0055] Further, since the elastic member 112 has better elastic performance, when the dryer is in the regeneration process, the high-pressure gas will impact the filter assembly 111 on the side away from the elastic member 112, thereby enabling the elastic member 112 to buffer the stress of the filter assembly 111, so as to improve the overall stability of the filter assembly 111. Further, since the high-pressure gas impacts the filter assembly 111, the filter assembly 111 can move or vibrate to a certain extent by compressing the elastic member 112, thereby helping the water and / or grease on the filter assembly 111 to shake off, so that the water and / or grease is more easily carried away by the gas, which can effectively improve the regeneration effect of the dryer and enable the dryer to better restore the adsorption capacity.

[0056] It can be understood that the elastic member 112 can be a spring, elastic rubber, air bag or the like, which is not particularly limited here. For example, in the present embodiment, the elastic member 112 is a spring, wherein the outer diameter of the first end of the spring matches the inner diameter of the chamber 110, so as to improve the stability of the first end of the spring in the chamber 110. A limiting block 320 capable of extending into the second end of the spring is arranged on the second cover 300, so as to limit the second end of the spring, wherein the second pressing groove 310 on the second cover 300 wraps around the limiting block 320. After the filter assembly 111 is placed in the chamber 110, the second end of the spring can be sleeved on the limiting block 320 of the second cover 300, and then the second cover 300 is installed on the shell 100, so that the first end of the spring extends into the chamber 110 and abuts against the filter assembly 111.

[0057] In some embodiments, a stop block 113 is arranged on the inner side wall of the chamber 110, which can cooperate with the elastic member 112 to improve the stability of the installation of the filter assembly 111 in the chamber 110.

[0058] It should be noted that after the filter assembly 111 is placed in the chamber 110 through the opening of the chamber 110, the second cover 300 is fixedly installed on the shell 100 by compressing the elastic member 112, so that the elastic member 112 can press the filter assembly 111 onto the stop block 113, thereby improving the stability of the filter assembly 111 in the chamber 110.

[0059] Further, when the air inlet hole 120 arranged on the shell 100 is closer to the opening of the cavity 110, the air outlet hole 130 is arranged on the shell 100 on the side away from the filter assembly 111 of the stopper 113. Similarly, when the air outlet hole 130 arranged on the shell 100 is closer to the opening of the cavity 110, the air inlet hole 120 is arranged on the shell 100 on the side away from the filter assembly 111 of the stopper 113, so that the gas passing through the air inlet hole 120 and the air outlet hole 130 of the dryer can pass through the filter assembly 111, facilitating the adsorption of moisture and / or oil by the filter assembly 111 and the regeneration of the filter assembly 111.

[0060] In some embodiments, the filter assembly 111 arranged in the cavity 110 includes a molecular sieve 111a. When external gas enters the dryer through the air inlet hole 120 and is discharged from the air outlet hole 130, the molecular sieve 111a can preferably adsorb moisture and / or oil in the gas, achieving a better filtering effect.

[0061] Further, in order to improve the filtering effect of the filter assembly 111, the filter assembly 111 in the embodiment further includes a non-woven fabric 111b. The non-woven fabric 111b is arranged on both ends of the molecular sieve 111a, so that the non-woven fabric 111b can cooperate with the molecular sieve 111a to adsorb moisture and / or oil in the gas in the cavity 110, achieving a better filtering effect.

[0062] Further, in order to improve the filtering effect of the filter assembly 111, the filter assembly 111 in the embodiment further includes a barrier net 111c. The barrier net 111c is arranged on the side away from the molecular sieve 111a of both non-woven fabrics 111b. Since the barrier net 111c has a plurality of small-diameter holes, the barrier net 111c can cooperate with the non-woven fabric 111b and the molecular sieve 111a to adsorb moisture and / or oil in the gas in the cavity 110, achieving a better filtering effect. In particular, since the non-woven fabric 111b is a flexible material, the arrangement of the barrier net 111c enables the barrier net 111c to press the non-woven fabric 111b on the molecular sieve 111a under the elastic extrusion of the elastic member 112, thereby improving the stability of the non-woven fabric 111b in use, enabling it to always maintain an unfolded state without shrinking and wrinkling, and enabling the non-woven fabric 111b to have a better adsorption effect on moisture and / or oil.

[0063] In combination with Figure 9As shown, in some embodiments, the throttle valve 131 arranged on the air outlet hole 130 comprises a first mesh plate 131a and a second mesh plate 131b, wherein the first mesh plate 131a is fixedly arranged on the air outlet hole 130, and the second mesh plate 131b is arranged in parallel to the first mesh plate 131a and can rotate circumferentially relative to the first mesh plate 131a.

[0064] It should be noted that a plurality of first through holes 131c are arranged on the first mesh plate 131a, and a plurality of second through holes 131d are arranged on the second mesh plate 131b. In the mounted state, the axes of the plurality of second through holes 131d correspond to the axes of the plurality of first through holes 131c one by one by rotating the second mesh plate 131b, and the axes of the plurality of second through holes 131d are misaligned with the axes of the corresponding first through holes 131c by rotating the second mesh plate 131b.

[0065] It can be understood that when the axes of the plurality of second through holes 131d correspond to the axes of the plurality of first through holes 131c one by one, the throttle valve 131 can provide the maximum flow of gas passing through per unit time, and as the distance between the axes of the plurality of second through holes 131d and the axes of the corresponding first through holes 131c increases, the flow of gas passing through per unit time provided by the throttle valve 131 gradually decreases, so that the flow of gas passing through per unit time provided by the throttle valve 131 can be adjusted by rotating the second mesh plate 131b. In particular, as the flow of gas passing through per unit time provided by the throttle valve 131 gradually decreases, the rate and impact force of the gas entering the chamber 110 through the throttle valve 131 and the air outlet hole 130 gradually increase, that is, in the regeneration process of the dryer, the rate and impact force of the gas entering the chamber 110 can be better adjusted by operating the throttle valve 131, so that the flexibility of the regeneration process is better.

[0066] Further, in order to facilitate the control of the throttle valve 131, a driving component (not shown in the figure) such as a driving motor, an electric telescopic rod or a pneumatic cylinder can be arranged on the throttle valve 131 or the dryer or the corresponding position of the automobile, so that the rotation of the second mesh plate 131b is realized by the driving component, and automatic control is realized.

[0067] In summary, the above only describes the preferred embodiments of the present application, and any changes and modifications made within the scope of the application should be included in the scope of the application.

Claims

1. A dryer structure, characterized by: The shell comprises at least one chamber; the filter assembly is arranged in the chamber; the shell is provided with an air inlet hole and an air outlet hole which are communicated with the chamber respectively, and the air inlet hole and the air outlet hole are arranged at two ends of the filter assembly respectively; the air outlet hole is provided with a throttle valve, and the flow of gas passing through the throttle valve per unit time is adjustable.

2. The dryer arrangement of claim 1, characterized in that: The shell is provided with an exhaust hole communicated with the chamber; the shell is fixedly installed with a first cover capable of plugging the exhaust hole by bolts.

3. The dryer arrangement of claim 2, wherein: The first cover is pressed on the exhaust hole by a first sealing element.

4. The dryer arrangement of claim 1, wherein: In the axial direction of the chamber, the chamber is open at one end of the shell; the shell is fixedly installed with a second cover capable of plugging the opening of the chamber by bolts.

5. The dryer arrangement of claim 4, wherein: The second cover is pressed on the opening of the chamber by a second sealing element.

6. The dryer arrangement of claim 5, wherein: The number of chambers is multiple; the second cover is provided with a pressing groove, and the second sealing element is arranged in the pressing groove. When the second cover is installed on the shell, the second cover can simultaneously seal multiple chambers by the second sealing element.

7. The dryer arrangement of claim 4, wherein: An elastic element is arranged between the filter assembly and the second cover.

8. The dryer arrangement of claim 7, wherein: A stop block is arranged on the inner side wall of the chamber; when the second cover is installed on the shell, the second cover presses the filter assembly on the stop block by the elastic element. The air inlet hole or the air outlet hole is arranged on the side of the stop block away from the filter assembly.

9. The dryer arrangement of claim 1, wherein: The filter assembly comprises at least one of a molecular sieve, a non-woven fabric and a barrier net.

10. The dryer arrangement of claim 1, wherein: The throttle valve comprises a first mesh plate fixedly installed on the air outlet hole and a second mesh plate rotatably matched with the first mesh plate; The rotation of the second mesh plate relative to the first mesh plate can realize the adjustment of the flow of gas passing through the throttle valve per unit time.

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