An adsorption air dryer with filter tube

Abstract

The utility model relates to a kind of filter tube's adsorption type air dryer with filter, belong to air dryer technical field, including support frame, the support frame left side is fixedly connected with placing table, the placing table top is fixedly connected with front filter box, front filter box inside is sequentially movably connected with main pipeline filter core, condensation filter core and activated carbon filter core from left to right, the front filter box top is provided with lid, the front filter box inside is provided with locking assembly.The utility model is through being provided with unique locking assembly in front filter box and rear dust removal tank, user need not tool, and the quick opening and closing and sealing of box cover can be realized by rotating button, to significantly simplify the replacement process of main pipeline filter core, condensation filter core and activated carbon filter core.The design converts the traditional complicated maintenance operation into simple handwork, greatly reduces maintenance time and labor cost, effectively solves the pain point of low maintenance efficiency and inconvenient operation of traditional external filter.

Description

Technical Field

[0001] This utility model relates to the field of air dryer technology, specifically to an adsorption-type air dryer with a built-in filter tube. Background Technology

[0002] The adsorption dryer utilizes advanced chemical technology. Its principle is to filter out saturated water vapor in compressed air by using a special molecular sieve for gas purification, which is based on the difference in volume between water and air molecules. Water molecules can be easily adsorbed into the molecular sieve particles, and then the molecular sieve can be restored using a regeneration method. The dew point of the compressed air can easily reach -40℃.

[0003] In the field of compressed air purification, adsorption dryers are the core equipment for obtaining deeply dried air. Currently, pre-filters are commonly used to pre-treat compressed air to protect the adsorbent inside the dryer. However, most of these filters are independent external devices, and their filter tubes are usually connected by threads. Replacement requires tools and is cumbersome, resulting in inherent drawbacks such as low maintenance efficiency and low system integration. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adsorption air dryer with a built-in filter tube, which has the advantages of convenient filter replacement and significantly improved maintenance efficiency. It solves the problem of cumbersome and time-consuming maintenance operations caused by the independent external pre-filter in traditional adsorption dryers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adsorption-type air dryer with a built-in filter tube, comprising a support frame, a placement platform fixedly connected to the left side of the support frame, a pre-filter box fixedly connected to the top of the placement platform, a cover provided on the top of the pre-filter box, and a locking assembly provided inside the pre-filter box;

[0006] The locking assembly includes a button rotatably connected to the top of the cover, a rotating rod fixedly connected to the bottom of the button and extending through the cover, a circular limiting plate fixedly connected to the surface of the rotating rod, a matching rotating groove formed around the circular limiting plate on the cover, a ball seat formed at the bottom of the rotating rod, a limiting rod fixedly connected to the right side of the rotating rod, a groove formed on the inner wall of the pre-filter box at the bottom of the rotating rod, a spring seat fixedly connected to the bottom wall of the groove, a locking ball fixedly connected to the top of the spring seat, a placement groove formed on the right side of the groove, a locking groove formed at the bottom of the placement groove, and the groove, placement groove and locking groove are all connected.

[0007] Furthermore, the number of locking components is four, and the four locking components are distributed in a rectangular shape on the cover.

[0008] Furthermore, the pre-filter box contains, from left to right, a main pipeline filter element, a coagulating filter element, and an activated carbon filter element, which are movably connected in sequence. The pre-filter box also contains multiple ventilation plates, which are distributed between the box and the filter elements and between the filter elements.

[0009] Furthermore, an air inlet pipe is fixedly connected to the left side of the pre-filter box, and a ventilation pipe is fixedly connected to the right side of the pre-filter box. An adsorption tower is fixedly connected to the end of the ventilation pipe away from the pre-filter box, and a one-way valve is fixedly connected to the surface of the ventilation pipe below the adsorption tower.

[0010] Furthermore, an air supply pipe is fixedly connected to the top of the adsorption tower, and a vertical diversion pipe is fixedly connected to the end of the air supply pipe away from the adsorption tower. A one-way valve is fixedly connected to the upper surface of the vertical diversion pipe, and a post-dust collector is fixedly connected to the upper vertical diversion pipe to the right of the one-way valve. An air outlet pipe is fixedly connected to the right side of the post-dust collector.

[0011] Furthermore, a flow-limiting pipe is fixedly connected to the surface of the lower vertical diversion pipe, and a regeneration tower is fixedly connected to the right side of the flow-limiting pipe. An exhaust pipe is fixedly connected to the bottom of the regeneration tower, and a silencer is fixedly connected to the end of the exhaust pipe away from the regeneration tower.

[0012] Furthermore, an activated carbon filter element is movably connected to the inner wall of the rear dust collector, and ventilation plates are fixedly connected to both sides of the activated carbon filter element in the rear dust collector. Four locking components are provided on the top cover of the rear dust collector.

[0013] Furthermore, a support frame is fixedly connected to the right side of the regeneration tower, a support plate is fixedly connected between the regeneration tower and the adsorption tower, and a controller is fixedly connected to the top of the support plate.

[0014] Compared with the prior art, this utility model provides an adsorption-type air dryer with a built-in filter tube, which has the following beneficial effects:

[0015] 1. This utility model features unique locking components in the pre-filter and post-dust collector boxes, allowing users to quickly open, close, and seal the boxes by rotating buttons without tools. This significantly simplifies the replacement process for main pipeline filter elements, condensate filter elements, and activated carbon filter elements. This design transforms traditionally cumbersome maintenance operations into simple manual tasks, greatly reducing maintenance time and labor costs, and effectively solving the pain points of low maintenance efficiency and inconvenient operation of traditional external filters.

[0016] 2. This utility model compactly integrates multi-stage filtration, adsorption drying, and regeneration functions into one unit. Through a built-in ventilation plate and vertical diversion pipe, the airflow path is rationally planned, ensuring that compressed air is stably output after sequential pretreatment, deep drying, and post-dust removal. This highly integrated design not only reduces external connecting pipes and potential leakage points, improving space utilization and system sealing, but also achieves automatic switching between adsorption and regeneration processes through a controller, ensuring the reliability of the equipment in continuously producing low-dew-point dry air. Attached Figure Description

[0017] Figure 1 This is a front view of the present utility model;

[0018] Figure 2 This is a front sectional view of the pre-filter box of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a front sectional view of the rear dust collector of this utility model;

[0021] Figure 5 This is a perspective view of the pre-filter box of this utility model.

[0022] In the diagram: 1. Support frame; 2. Placement platform; 3. Air inlet duct; 4. Pre-filter box; 5. Button; 6. Cover; 7. Ventilation duct; 8. One-way valve; 9. Adsorption tower; 10. Air supply duct; 11. Vertical diversion duct; 12. Flow restriction duct; 13. Post-dust collector box; 14. Regeneration tower; 15. Exhaust duct; 16. Silencer; 17. Ventilation plate; 18. Main pipeline filter element; 19. Coagulation filter element; 20. Activated carbon filter element; 21. Rotating rod; 22. Rotating groove; 23. Circular limiting plate; 24. Ball seat; 25. Groove; 26. Spring seat; 27. Ball clamp; 28. Clamping groove; 29. ​​Limiting rod; 30. Placement groove; 31. Support plate; 32. Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 5An adsorption-type air dryer with a built-in filter tube in this embodiment includes a support frame 1, a placement platform 2 fixedly connected to the left side of the support frame 1, a pre-filter box 4 fixedly connected to the top of the placement platform 2, a cover 6 provided on the top of the pre-filter box 4, and a locking component provided inside the pre-filter box 4.

[0025] The locking assembly includes a button 5 rotatably connected to the top of the cover 6. A rotating rod 21 that passes through the cover 6 is fixedly connected to the bottom of the button 5. A circular limiting plate 23 is fixedly connected to the surface of the rotating rod 21. A matching rotating groove 22 is provided around the circular limiting plate 23 on the cover 6. A ball seat 24 is provided at the bottom of the rotating rod 21. A limiting rod 29 is fixedly connected to the right side of the rotating rod 21. A groove 25 is provided at the bottom of the rotating rod 21 on the inner wall of the pre-filter box 4. A spring seat 26 is fixedly connected to the bottom wall of the groove 25. A locking ball 27 is fixedly connected to the top of the spring seat 26. A placement groove 30 is provided on the right side of the groove 25. A locking groove 28 is provided at the bottom of the placement groove 30. The groove 25, the placement groove 30 and the locking groove 28 are all connected.

[0026] It should be noted that when the filter element in the pre-filter box 4 needs to be replaced, the operator does not need any tools. He can directly rotate the button 5 by hand. The button 5 drives the rotating rod 21 and the limiting rod 29 to rotate in the rotating groove 22. When the limiting rod 29 is aligned with the placement groove 30, the spring seat 26 pushes the locking ball 27 to lift the rotating rod 21 upward, so that the locking assembly releases the constraint on the cover 6. At this time, the cover 6 can be opened for filter element maintenance. When closing, rotate the button 5 in the opposite direction. The limiting rod 29 presses the locking ball 27 and compresses the spring until the locking ball 27 is locked into the locking groove 28, realizing the quick locking and sealing of the cover 6.

[0027] There are four locking components, which are arranged in a rectangular pattern on the cover 6.

[0028] Inside the pre-filter box 4, from left to right, are movably connected a main pipeline filter element 18, a coagulating filter element 19, and an activated carbon filter element 20. Multiple ventilation plates 17 are fixedly connected inside the pre-filter box 4, distributed between the box and the filter elements and between the filter elements themselves. An air inlet pipe 3 is fixedly connected to the left side of the pre-filter box 4, and a ventilation pipe 7 is fixedly connected to the right side. The end of the ventilation pipe 7 furthest from the pre-filter box 4 is fixedly connected to an adsorption tower 9. A one-way valve 8 is fixedly connected to the surface of the ventilation pipe 7 below the adsorption tower 9. The top of the adsorption tower 9 is fixedly connected to... There is an air supply duct 10. The end of the air supply duct 10 away from the adsorption tower 9 is fixedly connected to a vertical diversion pipe 11. The upper surface of the vertical diversion pipe 11 is fixedly connected to a one-way valve 8. The upper vertical diversion pipe 11 is fixedly connected to a post-dust collector 13 to the right of the one-way valve 8. The right side of the post-dust collector 13 is fixedly connected to an air outlet pipe. The inner wall of the post-dust collector 13 is movably connected to an activated carbon filter element 20. Ventilation plates 17 are fixedly connected to both the left and right sides of the activated carbon filter element 20 in the post-dust collector 13. The top cover 6 of the post-dust collector 13 is equipped with four locking components.

[0029] It should be noted that after the wet compressed air enters the pre-filter box 4 through the air inlet pipe 3, it passes through the main pipeline filter element 18, the condensing filter element 19 and the activated carbon filter element 20 in sequence under the guidance of the ventilation plate 17, and completes the removal of liquid water and oil, oil mist condensation filtration and oil vapor adsorption respectively; the pre-purified dry air then passes through the ventilation pipe 7 and the one-way valve 8, and enters the adsorption tower 9 from the bottom for deep drying; the dried main airflow enters the vertical diversion pipe 11 from the top of the adsorption tower 9 through the air supply pipe 10, passes upward through the one-way valve 8 and enters the post-dust collector box 13, and is finally purified by the activated carbon filter element 20 in the box before being output.

[0030] The lower vertical diversion pipe 11 is fixedly connected to the flow limiting pipe 12. The lower vertical diversion pipe 11 is fixedly connected to the regeneration tower 14 on the right side of the flow limiting pipe 12. The bottom of the regeneration tower 14 is fixedly connected to the exhaust pipe 15. The end of the exhaust pipe 15 away from the regeneration tower 14 is fixedly connected to the silencer 16.

[0031] A support frame 1 is fixedly connected to the right side of the regeneration tower 14, and a support plate 31 is fixedly connected between the regeneration tower 14 and the adsorption tower 9. A controller 32 is fixedly connected to the top of the support plate 31.

[0032] It should be noted that while the adsorption tower 9 is working, a small stream of dry air is drawn out from the lower end of the vertical diversion pipe 11, passes through the flow restriction pipe 12, and enters the regeneration tower 14 from the top. The gas is finally discharged from the silencer 16 through the exhaust pipe 15. The silencer 16 effectively reduces the exhaust noise and completes silent regeneration.

[0033] The working principle of the above embodiments is as follows:

[0034] (1) Wet compressed air enters the pre-filter box 4 through the air inlet pipe 3. Under the guidance of the ventilation plate 17, it passes through the main pipeline filter element 18, the condensing filter element 19 and the activated carbon filter element 20 in sequence for three-stage filtration, realizing liquid water-oil separation, oil mist condensation and oil vapor adsorption respectively. The pre-purified dry air enters the adsorption tower 9 from the bottom through the ventilation pipe 7 and the one-way valve 8 for deep drying. The main airflow that has completed drying enters the vertical diversion pipe 11 from the top of the adsorption tower 9 through the air supply pipe 10, and enters the post-dust collector box 13 after passing through the one-way valve 8. After final purification by the activated carbon filter element 20, it is output for use.

[0035] (2) While the adsorption tower 9 is working, a small stream of dry air is diverted from the lower end of the vertical diversion pipe 11. After being throttled and depressurized by the flow limiting pipe 12, it enters the regeneration tower 14 from the top to regenerate and purge the saturated adsorbent. This regeneration airflow removes moisture from the adsorbent, forming humid exhaust gas. After being reduced in noise by the silencer 16 through the exhaust pipe 15, the exhaust gas is discharged into the atmosphere. The entire process is automatically controlled by the controller 32.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0037] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adsorption-type air dryer with a built-in filter tube, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to a placement platform (2) on the left side, and a pre-filter box (4) is fixedly connected to the top of the placement platform (2). The top of the pre-filter box (4) is provided with a cover (6), and a locking component is provided inside the pre-filter box (4). The locking assembly includes a button (5) rotatably connected to the top of the cover (6), a rotating rod (21) that passes through the cover (6) is fixedly connected to the bottom of the button (5), a circular limiting plate (23) is fixedly connected to the surface of the rotating rod (21), a matching rotating groove (22) is provided around the circular limiting plate (23) on the cover (6), a ball seat (24) is provided at the bottom of the rotating rod (21), a limiting rod (29) is fixedly connected to the right side of the rotating rod (21), a groove (25) is provided on the inner wall of the pre-filter box (4) at the bottom of the rotating rod (21), a spring seat (26) is fixedly connected to the bottom wall of the groove (25), a locking ball (27) is fixedly connected to the top of the spring seat (26), a placement groove (30) is provided on the right side of the groove (25), a locking groove (28) is provided at the bottom of the placement groove (30), and the groove (25), placement groove (30) and locking groove (28) are all connected.

2. An adsorption-type air dryer with a built-in filter tube according to claim 1, characterized in that: The number of locking components is four, and the four locking components are arranged in a rectangular shape on the cover (6).

3. An adsorption-type air dryer with a built-in filter tube according to claim 1, characterized in that: The pre-filter box (4) is movably connected from left to right with a main pipeline filter element (18), a coagulating filter element (19) and an activated carbon filter element (20). The pre-filter box (4) is fixedly connected with multiple ventilation plates (17), which are distributed between the box and the filter element and between the filter elements.

4. An adsorption-type air dryer with a built-in filter tube according to claim 1, characterized in that: The pre-filter box (4) is fixedly connected to the left side of the air inlet pipe (3), and the pre-filter box (4) is fixedly connected to the right side of the air inlet pipe (4). The end of the air inlet pipe (7) away from the pre-filter box (4) is fixedly connected to the adsorption tower (9). The surface of the air inlet pipe (7) located below the adsorption tower (9) is fixedly connected to the one-way valve (8).

5. An adsorption-type air dryer with a built-in filter tube according to claim 4, characterized in that: The top of the adsorption tower (9) is fixedly connected to an air supply pipe (10). The end of the air supply pipe (10) away from the adsorption tower (9) is fixedly connected to a vertical diversion pipe (11). The upper surface of the vertical diversion pipe (11) is fixedly connected to a one-way valve (8). The upper vertical diversion pipe (11) is located to the right of the one-way valve (8) and is fixedly connected to a post-dust collector (13). The right side of the post-dust collector (13) is fixedly connected to an air outlet pipe.

6. An adsorption-type air dryer with a built-in filter tube according to claim 5, characterized in that: The lower vertical diversion pipe (11) is fixedly connected to the flow limiting pipe (12). The lower vertical diversion pipe (11) is fixedly connected to the regeneration tower (14) on the right side of the flow limiting pipe (12). The bottom of the regeneration tower (14) is fixedly connected to the exhaust pipe (15). The end of the exhaust pipe (15) away from the regeneration tower (14) is fixedly connected to the silencer (16).

7. An adsorption-type air dryer with a built-in filter tube according to claim 5, characterized in that: The inner wall of the rear dust collector (13) is movably connected to an activated carbon filter element (20). Ventilation plates (17) are fixedly connected to both the left and right sides of the activated carbon filter element (20). The top cover (6) of the rear dust collector (13) is provided with four locking components.

8. An adsorption-type air dryer with a built-in filter tube according to claim 6, characterized in that: A support frame (1) is fixedly connected to the right side of the regeneration tower (14), and a support plate (31) is fixedly connected between the regeneration tower (14) and the adsorption tower (9). A controller (32) is fixedly connected to the top of the support plate (31).

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