Air exchange structure for a sorption dryer

Abstract

The utility model relates to adsorption dryer technical field, and disclose a kind of adsorption dryer ventilation structure, including adsorption dryer body, adsorption dryer body one side is equipped with first adsorption tower and second adsorption tower, and first adsorption tower and second adsorption tower outlet end are communicated with outlet pipe, and first adsorption tower and second adsorption tower air inlet end are communicated with first air inlet pipe, and first air inlet pipe one side is equipped with filter assembly;Filter assembly is used to filter the air of first air inlet pipe;Filter assembly includes fixed frame and bottom plate, and both sides of bottom plate top are fixed with two groups of limit block, and lock slot is opened in one side of limit block;Through air from second air inlet pipe and flow into fixed frame inside, filter screen can effectively intercept particulate matter in ventilation airflow, reduce the pollution of particulate matter in ventilation airflow to adsorbent in first adsorption tower and second adsorption tower interior, guarantee the air cleanliness of subsequent process, to extend the service life of adsorbent.

Description

Technical Field

[0001] This utility model relates to the field of adsorption dryer technology, specifically to an air exchange structure for an adsorption dryer. 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] An adsorption dryer is a device used to remove moisture from compressed air. It is widely used in industrial production where high air drying requirements are present. During the ventilation process, outside air directly enters the adsorption dryer and comes into contact with the adsorption tower. Since outside air often contains a large number of particulate matter, such as dust and impurities, these particles will enter the first and second adsorption towers along with the ventilation airflow. When the particles enter the adsorption tower, they will adhere to the surface of the adsorbent and may even block the pore structure of the adsorbent, reducing the adsorbent's ability to adsorb moisture, affecting the drying effect of the dryer, and causing the performance of the adsorbent to gradually decline. Therefore, a ventilation structure for an adsorption dryer is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an air exchange structure for an adsorption dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air exchange structure for an adsorption dryer, comprising an adsorption dryer body, wherein a first adsorption tower and a second adsorption tower are respectively provided on one side of the adsorption dryer body, an air outlet pipe is connected to the air outlet ends of the first adsorption tower and the second adsorption tower, and a first air inlet pipe is connected to the air inlet ends of the first adsorption tower and the second adsorption tower, and a filter assembly is provided on one side of the first air inlet pipe; the filter assembly is used to filter the air entering the first air inlet pipe.

[0006] The filter assembly includes a fixing frame and a base plate. Two sets of limiting blocks are fixed on both sides of the top of the base plate, and a locking groove is provided on one side of each limiting block.

[0007] The frame is equipped with a filter screen, which is used to intercept particulate matter in the airflow.

[0008] A sealing ring is fixed to the outside of the filter screen, and two sliding rods are slidably connected to the inner wall of the fixing frame, with a locking rod fixed to the bottom of the sliding rod.

[0009] Preferably, the outer side of the sealing ring is seamlessly inserted into the inner sidewall of the fixing frame, and the number of the limiting blocks in each group is two.

[0010] Preferably, the bottom of the fixing frame is provided with four limiting grooves, and the air inlet end of the fixing frame is connected to a second air inlet pipe, with a flange fixed to one end of the second air inlet pipe.

[0011] Preferably, the locking rod is L-shaped. When the locking rod is inserted into the inner side of the locking groove, the fixing frame and the base plate are in a locked state. When the locking rod leaves the inner side of the locking groove, the fixing frame and the base plate are in an unlocked state.

[0012] Preferably, the inner wall of the limiting groove is provided with a second sliding groove, and the locking rod is slidably connected to the inner side of the second sliding groove.

[0013] Preferably, as described above, one end of the slide rod is fixed with a pull rod, and the other end of the slide rod is fixed with a sliding plate.

[0014] Preferably, the fixing frame has a first sliding groove on one side, the sliding plate is slidably connected to the inside of the first sliding groove, and a cover plate located outside the first sliding groove is bolted to one side of the fixing frame, and a spring is connected between the cover plate and the sliding plate.

[0015] Preferably, as described above, a sealing gasket is fixed to the bottom of the mounting bracket, and the first air intake pipe is connected to the mounting bracket.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] First, air flows into the fixed frame through the second air inlet pipe. The filter screen can effectively intercept particulate matter in the air exchange airflow, reducing the contamination of the adsorbent inside the first and second adsorption towers by particulate matter in the air exchange airflow, ensuring the cleanliness of the air entering the subsequent process, and thus extending the service life of the adsorbent.

[0018] 2. When it is necessary to clean or replace the filter screen, simply push the pull rod to unlock the fixing bracket from the base plate. In the locked state, the locking rod is inserted into the locking groove, and at the same time, the limiting block enters the limiting groove, ensuring the stability of the connection between the fixing bracket and the base plate. Cleaning and replacing the filter screen becomes easy. Users can regularly maintain the filter screen, clean or replace damaged filter screens in a timely manner, ensuring that the filtration device is always in good working condition, extending the service life of the entire filtration system, and reducing equipment maintenance costs and operating risks. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the mating joint between the lock rod and the lock groove of this utility model;

[0024] Figure 5 This is a schematic diagram of the limiting groove structure of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Adsorption dryer body; 2. Filter assembly; 21. Fixing frame; 22. Base plate; 23. Tie rod; 24. Cover plate; 25. Spring; 26. First slide groove; 27. Slide plate; 28. Limiting block; 29. ​​Locking groove; 210. Sealing gasket; 211. Second slide groove; 212. Locking rod; 213. Limiting groove; 214. Slide rod; 215. Filter screen; 3. First air inlet pipe; 4. Flange; 5. Second air inlet pipe; 6. First adsorption tower; 7. Air outlet pipe; 8. Second adsorption tower. Detailed Implementation

[0026] 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.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0028] Example

[0029] Please see Figure 1-5 This utility model provides a technical solution: an adsorption dryer ventilation structure, including an adsorption dryer body 1, with a first adsorption tower 6 and a second adsorption tower 8 respectively disposed on one side of the adsorption dryer body 1. Filtered gas enters the first adsorption tower 6 and the second adsorption tower 8 through a first inlet pipe 3. The two towers alternately perform adsorption and regeneration cycles. The adsorbent in the adsorption tower removes moisture from the gas, and the dried gas is discharged through an outlet pipe 7. The outlet ends of the first adsorption tower 6 and the second adsorption tower 8 are connected to the outlet pipe 7, and the inlet ends of the first adsorption tower 6 and the second adsorption tower 8 are connected to the first inlet pipe 3. A filter assembly 2 is provided on one side of the air inlet pipe 3; the filter assembly 2 is used to filter the air intake of the first air inlet pipe 3; the bottom of the fixing frame 21 has four limiting grooves 213, the air inlet end of the fixing frame 21 is connected to the second air inlet pipe 5, and a flange 4 is fixed at one end of the second air inlet pipe 5. External air enters the filter assembly 2 through the second air inlet pipe 5 and the flange 4. The filter screen 215 intercepts particulate matter in the airflow. The filter screen 215 can intercept particulate matter ≥5μm, protect the adsorption tower from pollution, and improve the drying efficiency. The filter screen 215 should be cleaned or replaced every 1-3 months.

[0030] The filter assembly 2 includes a mounting frame 21 and a base plate 22. Two sets of limiting blocks 28 are fixed on both sides of the top of the base plate 22, and a locking groove 29 is provided on one side of the limiting block 28. A filter screen 215 is provided inside the mounting frame 21. The filter screen 215 is used to intercept particulate matter in the air exchange airflow. A sealing ring is fixed on the outside of the filter screen 215. The sealing ring is made of high-temperature silicone. Two sliding rods 214 are slidably connected to the inner wall of the mounting frame 21. A locking rod 212 is fixed at the bottom of the sliding rod 214. In this embodiment, the filter assembly 2 can be set at the front end of the precision filter and the automatic drainer, thereby reducing the maintenance frequency of the precision filter and the automatic drainer.

[0031] The outer side of the sealing ring is seamlessly inserted into the inner wall of the fixing frame 21. There are two limit blocks 28 in each group. The locking rod 212 is L-shaped. When the locking rod 212 is inserted into the inner side of the locking groove 29, the fixing frame 21 and the base plate 22 are locked. When the locking rod 212 leaves the inner side of the locking groove 29, the fixing frame 21 and the base plate 22 are unlocked. When the filter screen 215 needs to be replaced, push the pull rod 23 to drive the slide rod 214 and the locking rod 212 to move backward along the second slide groove 211. The compressed spring 25 causes the locking rod 212 to disengage from the locking groove 29. At this time, the fixing frame 21 and the base plate 22 are unlocked. The base plate 22 can be pulled down to complete the disassembly and replacement of the filter screen 215.

[0032] The inner wall of the limiting groove 213 is provided with a second sliding groove 211. The locking rod 212 is slidably connected to the inner side of the second sliding groove 211. One end of the sliding rod 214 is fixed with a pull rod 23. One end of the pull rod 23 is inserted with a bolt (not shown in the figure). One end of the bolt is threaded to one side of the fixing frame 21. The bolt prevents the locking rod 212 from falling out from the inner side of the locking groove 29 under the action of external force. The other end of the sliding rod 214 is fixed with a sliding plate 27.

[0033] A first slide groove 26 is provided on one side of the fixed frame 21. The slide plate 27 is slidably connected to the inner side of the first slide groove 26. A cover plate 24 located outside the first slide groove 26 is bolted to one side of the fixed frame 21. A spring 25 is connected between the cover plate 24 and the slide plate 27. The spring 25 has a preload. The spring 25 can be removed and replaced by removing the cover plate 24. A sealing gasket 210 is fixed at the bottom of the fixed frame 21. After the fixed frame 21 is locked with the base plate 22, the sealing gasket 210 plays a sealing role to prevent air from leaking from the connection between the fixed frame 21 and the base plate 22. The first air inlet pipe 3 is connected to the fixed frame 21.

[0034] In this embodiment, the adsorption dryer body 1 is a model DH-30E manufactured by Guangdong Zhongbo Intelligent Equipment Co., Ltd. Since the structure and operating principle of this model of adsorption dryer body 1 are existing technologies, its structure and operating principle will not be described in detail here.

[0035] Working principle: External compressed air first enters the filter assembly 2 through the second intake pipe 5. In the filter assembly 2, the air passes through the filter screen 215 to intercept particulate matter. The filtered clean air is then distributed to the first adsorption tower 6 or the second adsorption tower 8 through the first intake pipe 3. The sealing ring on the outside of the filter screen 215 ensures that the air passes through the fixing frame 21 without leakage, preventing unfiltered air from entering the system. At this time, the first adsorption tower 6 is in working condition. Clean air enters the tower from the first intake pipe 3, and the adsorbent absorbs the moisture in the air. The dried air is output to the downstream equipment from the outlet pipe 7. At the same time, the second adsorption tower 8 is in the regeneration stage, preparing for the next cycle of switching. When the first adsorption tower 6 is saturated, the system automatically switches: the second adsorption tower 8 takes over the adsorption work, while the first adsorption tower 6 enters regeneration. The outlet pipe 7 ensures the continuous output of dry air to avoid production interruption. The process is repeated cyclically to achieve air exchange operation.

[0036] Air flows into the fixture 21 from the second air inlet pipe 5. The filter screen 215, as the core filter element, intercepts particulate matter in the airflow, ensuring that the air can only continue to flow after being filtered by the filter screen 215. The sealing ring of the filter screen 215 is seamlessly inserted into the inner wall of the fixture 21, ensuring that the airflow passes completely through the filter screen 215 without bypass leakage, extending the adsorbent life and reducing the maintenance frequency.

[0037] When the filter screen 215 needs to be cleaned or replaced, push the pull rod 23 fixed at one end of the slide rod 214. The slide rod 214 slides on the inner wall of the fixing frame 21, and at the same time drives the locking rod 212 fixed at the bottom to move. The locking rod 212 is slidably connected to the inner side of the second slide groove 211. As the slide rod 214 moves, the locking rod 212 leaves the inner side of the locking groove 29 opened on one side of the upper limit block 28 of the bottom plate 22. At this time, the fixing frame 21 and the bottom plate 22 are in the unlocked state.

[0038] After the fixing frame 21 and the base plate 22 are unlocked, since the fixing frame 21 has four limiting grooves 213 at the bottom, the base plate 22 can be pulled down to separate the limiting grooves 213 from the limiting block 28 at the top of the base plate 22, thereby removing the base plate 22 from the fixing frame 21. Then, the filter screen 215 can be pulled down to be taken out from the inside of the fixing frame 21, so that the filter screen 215 can be cleaned or replaced.

[0039] After cleaning or replacing the filter screen 215, align the limiting groove 213 at the bottom of the fixing bracket 21 with the limiting block 28 at the top of the base plate 22, and then push the base plate 22 upward so that the limiting block 28 enters the limiting groove 213. At the same time, first push the pull rod 23 and then release the pull rod 23. Under the elastic force of the spring 25, the slide plate 27 slides in the opposite direction in the first slide groove 26, which drives the slide rod 214 to move in the opposite direction, thereby causing the locking rod 212 to slide in the second slide groove 211. When the locking rod 212 is inserted into the inner side of the locking groove 29, the fixing bracket 21 and the base plate 22 are in a locked state.

[0040] In summary, as air flows into the fixed frame 21 from the second air inlet pipe 5, the filter screen 215 can effectively intercept particulate matter in the air exchange airflow, reducing the contamination of the adsorbent inside the first adsorption tower 6 and the second adsorption tower 8 by particulate matter in the air exchange airflow, ensuring the cleanliness of the air entering the subsequent process, thereby extending the service life of the adsorbent.

[0041] When the filter screen 215 needs to be cleaned or replaced, simply push the pull rod 23 to unlock the fixing bracket 21 from the base plate 22. In the locked state, the locking rod 212 is inserted into the inside of the locking groove 29, and at the same time, the limiting block 28 enters the limiting groove 213, ensuring the stability of the connection between the fixing bracket 21 and the base plate 22. Cleaning and replacing the filter screen 215 becomes easy. Users can maintain the filter screen 215 regularly, clean or replace damaged filter screens in a timely manner, ensuring that the filtration device is always in good working condition, extending the service life of the entire filtration system, and reducing equipment maintenance costs and operating risks.

[0042] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An air exchange structure for an adsorption dryer, comprising an adsorption dryer body (1), wherein a first adsorption tower (6) and a second adsorption tower (8) are respectively provided on one side of the adsorption dryer body (1), the outlet ends of the first adsorption tower (6) and the second adsorption tower (8) are connected to an outlet pipe (7), and the inlet ends of the first adsorption tower (6) and the second adsorption tower (8) are connected to a first inlet pipe (3), characterized in that, A filter assembly (2) is provided on one side of the first air intake pipe (3); the filter assembly (2) is used to filter the intake air of the first air intake pipe (3); The filter assembly (2) includes a fixing frame (21) and a base plate (22). Two sets of limiting blocks (28) are fixed on both sides of the top of the base plate (22). A locking groove (29) is provided on one side of the limiting block (28). The fixing frame (21) is equipped with a filter screen (215) inside, which is used to intercept particulate matter in the ventilation airflow; A sealing ring is fixed to the outside of the filter screen (215), and two slide rods (214) are slidably connected to the inner wall of the fixing frame (21). A locking rod (212) is fixed to the bottom of the slide rod (214).

2. The air exchange structure of an adsorption dryer according to claim 1, characterized in that, The outer side of the sealing ring is seamlessly inserted into the inner side wall of the fixing frame (21), and the number of each set of the limiting blocks (28) is two.

3. The air exchange structure of an adsorption dryer according to claim 1, characterized in that, The bottom of the fixed frame (21) has four limiting grooves (213). The air inlet end of the fixed frame (21) is connected to the second air inlet pipe (5). One end of the second air inlet pipe (5) is fixed with a flange (4).

4. The air exchange structure of an adsorption dryer according to claim 3, characterized in that, The locking rod (212) is L-shaped. When the locking rod (212) is inserted into the inner side of the locking groove (29), the fixing frame (21) and the base plate (22) are locked. When the locking rod (212) leaves the inner side of the locking groove (29), the fixing frame (21) and the base plate (22) are unlocked.

5. The air exchange structure of an adsorption dryer according to claim 4, characterized in that, The inner wall of the limiting groove (213) is provided with a second sliding groove (211), and the locking rod (212) is slidably connected to the inner side of the second sliding groove (211).

6. The air exchange structure of an adsorption dryer according to claim 5, characterized in that, One end of the slide bar (214) is fixed with a pull rod (23), and the other end of the slide bar (214) is fixed with a sliding plate (27).

7. The air exchange structure of an adsorption dryer according to claim 6, characterized in that, The fixing frame (21) has a first slide groove (26) on one side, and the slide plate (27) is slidably connected to the inside of the first slide groove (26). The fixing frame (21) has a cover plate (24) located outside the first slide groove (26) connected to one side by bolts. A spring (25) is connected between the cover plate (24) and the slide plate (27).

8. The air exchange structure of an adsorption dryer according to claim 1, characterized in that, The bottom of the mounting bracket (21) is fixed with a sealing gasket (210), and the first air inlet pipe (3) is connected to the mounting bracket (21).

Images