Molecular sieve filter

Abstract

The utility model discloses a molecular sieve filter which comprises a cylinder body, an installation assembly is installed outside the cylinder body, the installation assembly comprises an installation frame fixedly connected with the outer wall of one side of the cylinder body, a movable rod is inserted into the installation frame in a sliding mode, and the outer portion of the movable rod is connected with a horizontally-arranged connecting plate in a rotating mode. The two ends of the connecting plate are each fixedly connected with a mounting cover, the two mounting covers are symmetrically arranged, clamping grooves matched with the mounting covers are formed in the outer wall of the circumference of the barrel, sealing rings are arranged outside the mounting covers and extend out of the mounting covers, and the same positioning assembly is installed between the moving rod and the connecting plate. According to the filter, the installation assembly is arranged, on the premise that the cylinder body is not disassembled, the filtering piece can be replaced, it is guaranteed that the installation cover and the cylinder body are connected tightly enough, operation is convenient enough, and the operation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a molecular sieve filter. Background Technology

[0002] Molecular sieves are porous solid materials with uniform pore size distribution and repeatable pore structure. Their pore size is generally in the nanometer to submicron range, enabling them to selectively adsorb and filter substances. The principle of molecular sieve filters is to selectively separate molecules of different sizes by utilizing the pore size and pore structure of the molecular sieve material.

[0003] A search revealed a utility model patent with Chinese patent publication number CN220818152U, which discloses a dryer filter that facilitates the replacement of molecular sieves. The filter includes a copper shell with a groove on its top surface. A cover plate is threadedly connected to the top surface of the groove via screws. An illumination component is fixedly connected inside the cover plate, and an observation window is fixedly connected inside the illumination component. Connecting rings are welded to both ends of the copper shell, and a sealing component is threadedly connected inside the connecting rings. A circular cover plate is fixedly connected to one end of the sealing component.

[0004] The aforementioned device achieves molecular sieve replacement by setting a removable cover plate. However, due to the presence of the pipeline, both ends of the copper shell need to be disassembled, which takes a lot of time and is inconvenient to operate, leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a molecular sieve filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molecular sieve filter, comprising a cylindrical body, an installation assembly mounted on the outside of the cylindrical body, the installation assembly comprising an installation bracket fixedly connected to the outer wall of one side of the cylindrical body, a movable rod slidably inserted inside the installation bracket, a horizontally arranged connecting plate rotatably connected to the outside of the movable rod, an installation cover fixedly connected to both ends of the connecting plate, and the two installation covers being symmetrically arranged, a groove adapted to the installation cover being opened on the outer circumference of the cylindrical body, a sealing ring being provided on the outside of each installation cover, and the sealing ring extending out of the installation cover, and a common positioning assembly being installed between the movable rod and the connecting plate.

[0007] As a further preferred embodiment of this technical solution, a horizontally arranged lead screw is rotatably connected inside the mounting frame, the lead screw is threadedly connected to the moving rod, and a motor is fixedly installed on one side of the outer wall of the mounting frame, with the output end of the motor being coaxially fixed with one end of the lead screw.

[0008] The filter element can be replaced without disassembling the cylinder. Ensure a tight connection between the mounting cover and the cylinder, convenient operation, and high efficiency. To replace the filter element, start the motor to rotate the lead screw. The sliding rod inside the mounting bracket can only move horizontally, while the lead screw drives the moving rod away from the cylinder. The mounting cover, which is connected to the cylinder, moves outward, pushing the connecting plate to rotate half a turn. The new molecular sieve's retaining ring approaches the cylinder. Then, the motor drives the moving rod closer to the cylinder, and the mounting cover aligns with the slot on the outside of the cylinder. This completes the replacement.

[0009] As a further preferred embodiment of this technical solution, the positioning component includes a mounting rod fixedly connected to the top outer wall of the movable rod, a positioning rod slidably inserted into one end of the mounting rod, two locking holes adapted to the positioning rod being opened on the top outer wall of the connecting plate, and a spring sleeved on the outside of the positioning rod, with both ends of the spring being fixedly connected to the end of the positioning rod and the mounting rod, respectively.

[0010] As a further preferred embodiment of this technical solution, both of the mounting covers are equipped with filter components. Each filter component includes a mesh frame fixedly connected to the inner circumference of the mounting cover. A retaining ring is slidably fitted on the outside of the mesh frame. A stepped placement ring is provided inside the retaining ring, and a coarse filter and a fine filter are respectively placed on the top of the two steps of the placement ring, with the fine filter at the top position.

[0011] As a further preferred embodiment of this technical solution, both sides of the top outer wall of the mesh frame are provided with inclined guide surfaces one, and the two guide surfaces one are symmetrically arranged, and the middle of the top outer wall of the mesh frame is provided with inclined guide surfaces two.

[0012] The fluid enters the internal space of the cylinder through the opening of the cap, first contacting the fine filter screen at the top, where large impurities are intercepted. The fluid then flows through the coarse filter screen, where even larger impurities are intercepted again, effectively preventing these impurities from clogging the adsorption pores of the molecular sieve. Finally, the fluid enters the molecular sieve area filled inside the confining ring, where small impurities are adsorbed by the molecular sieve. This process continues. To remove a failed molecular sieve, first place the container at the bottom of the mesh frame, then pull the confining ring. A gap appears at the lowest point of the first and second guide surfaces of the mesh frame, through which the molecular sieve flows outward.

[0013] As a further preferred embodiment of this technical solution, a cap is placed on both the top outer wall and the bottom outer wall of the cylinder, and the cylinder and the two caps are fixedly connected by bolts.

[0014] As a further preferred embodiment of this technical solution, the thread helix angle of the external thread groove of the lead screw is smaller than the equivalent friction angle.

[0015] This invention provides a molecular sieve filter with the following advantages:

[0016] (1) By setting up the installation components, the filter can be replaced without disassembling the cylinder. This invention ensures that the connection between the installation cover and the cylinder is tight enough, the operation is convenient enough, and the operation efficiency is high. If the filter is to be replaced, start the motor to drive the screw to rotate. The sliding rod connected inside the installation frame can only move horizontally, while the screw can drive the moving rod away from the cylinder. The installation cover that is connected to the cylinder moves outward, pushing the connecting plate to rotate half a turn. The retaining ring of the new molecular sieve is close to the cylinder. Then the motor drives the moving rod to close to the cylinder. Subsequently, the installation cover is connected to the slot outside the cylinder, thus completing the replacement.

[0017] (2) By setting up a filter assembly, the fluid enters the internal space of the cylinder through the opening of the cap and first comes into contact with the fine filter screen at the top. Large impurities are intercepted. The fluid flows through the coarse filter screen, where larger impurities are intercepted again, effectively preventing these impurities from clogging the adsorption pores of the molecular sieve. Finally, the fluid enters the molecular sieve range filled inside the baffle ring, where small impurities will be adsorbed by the molecular sieve. This process continues. If a failed molecular sieve needs to be removed, first place the container at the bottom of the mesh frame, and then pull the baffle ring. A gap appears at the lowest point of the guide surface one and guide surface two of the mesh frame, and the molecular sieve flows outward through the gap. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partially enlarged structural diagram of the mounting components of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of the filter assembly of this utility model;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 1. Cylinder; 2. Cover; 3. Mounting assembly; 4. Filter assembly; 5. Positioning assembly; 301. Mounting bracket; 302. Lead screw; 303. Motor; 304. Moving rod; 305. Connecting plate; 306. Mounting cover; 307. Sealing ring; 401. Mesh frame; 402. Enclosure ring; 403. Coarse filter screen; 404. Fine filter screen; 405. Guide surface one; 406. Guide surface two; 501. Mounting rod; 502. Positioning rod; 503. Clip hole; 504. Spring. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown, in this embodiment, a molecular sieve filter includes a cylindrical body 1. An installation assembly 3 is installed on the outside of the cylindrical body 1. The installation assembly 3 includes a mounting bracket 301 fixedly connected to the outer wall of one side of the cylindrical body 1. A moving rod 304 is slidably inserted inside the mounting bracket 301. A horizontally arranged connecting plate 305 is rotatably connected to the outside of the moving rod 304. A mounting cover 306 is fixedly connected to both ends of the connecting plate 305, and the two mounting covers 306 are symmetrically arranged. A groove adapted to the mounting cover 306 is opened on the outer circumference of the cylindrical body 1. A sealing ring 307 is provided on the outside of the mounting cover 306, and the sealing ring 307 extends out of the mounting cover 306. The same positioning assembly 5 is installed between the moving rod 304 and the connecting plate 305.

[0025] The mounting bracket 301 is internally rotatably connected to a horizontally arranged lead screw 302, which is threadedly connected to a moving rod 304. A motor 303 is fixedly installed on one side of the outer wall of the mounting bracket 301, and the output end of the motor 303 is coaxially fixed with one end of the lead screw 302.

[0026] To replace filter assembly 4, start motor 303 to drive lead screw 302 to rotate. The movable rod 304, which is slidably connected inside mounting bracket 301, can only move horizontally. Lead screw 302 can drive movable rod 304 away from cylinder 1. Mounting cover 306, which is connected to cylinder 1, moves outward, pushing connecting plate 305 to rotate half a turn. The retaining ring 402 of the new molecular sieve is brought closer to cylinder 1. Then, motor 303 drives movable rod 304 closer to cylinder 1. Subsequently, mounting cover 306 is connected to the slot on the outside of cylinder 1, thus completing the replacement. Since the top and bottom of mounting cover 306 are both set as inclined surfaces, and the two inclined surfaces are symmetrically arranged, mounting cover 306 will squeeze the inner wall of the slot during the connection process, which helps to improve the airtightness.

[0027] like Figure 2 and Figure 4 As shown, the positioning assembly 5 includes a mounting rod 501 fixedly connected to the top outer wall of the moving rod 304. A positioning rod 502 is slidably inserted into one end of the mounting rod 501. Two locking holes 503 adapted to the positioning rod 502 are opened on the top outer wall of the connecting plate 305. A spring 504 is sleeved on the outside of the positioning rod 502. The two ends of the spring 504 are fixedly connected to the end of the positioning rod 502 and the mounting rod 501, respectively. When the connecting plate 305 is flipped, the locking holes 503 can push the positioning rod 502 upward. After it is flipped half a turn, the other locking hole 503 moves to the bottom of the positioning rod 502, and the spring 504 will drive the positioning rod 502 into the other locking hole 503, ensuring that the subsequent docking process can proceed smoothly.

[0028] like Figure 1 and Figure 3As shown, filter components 4 are installed inside both mounting covers 306. The filter components 4 include a mesh frame 401 fixedly connected to the inner circumference of the mounting cover 306. A retaining ring 402 is slidably sleeved on the outside of the mesh frame 401. A stepped placement ring is provided inside the retaining ring 402. A coarse filter 403 and a fine filter 404 are respectively placed on the top of the two steps of the placement ring, with the fine filter 404 at the top position.

[0029] The top outer wall of the mesh frame 401 is provided with inclined guide surfaces 405 on both sides, and the two guide surfaces 405 are symmetrically arranged. The middle of the top outer wall of the mesh frame 401 is provided with an inclined guide surface 406, which can concentrate and guide all molecular sieve particles to a fixed position for discharge.

[0030] When the fluid comes into contact with the top fine filter screen 404, large impurities are intercepted. The fluid then flows through the coarse filter screen 403, where larger impurities are intercepted again, effectively preventing these impurities from clogging the adsorption pores of the molecular sieve. Finally, the fluid enters the molecular sieve filling the confining ring 402, where small impurities are adsorbed by the molecular sieve. This process continues. If a failed molecular sieve needs to be removed, first place the container at the bottom of the mesh frame 401, then pull the confining ring 402. A gap appears at the lowest point of the guide surface 405 and guide surface 406 of the mesh frame 401, and the molecular sieve flows outward through the gap.

[0031] like Figure 1 As shown, a cover 2 is placed on the top outer wall and the bottom outer wall of the cylinder 1, and the cylinder 1 and the two covers 2 are fixedly connected by bolts. The cylinder 1 can be disassembled separately for easy cleaning.

[0032] like Figure 2 As shown, the thread helix angle of the external thread groove of the lead screw 302 is less than the equivalent friction angle, giving it a self-locking property, thereby ensuring that the position of the connecting rod 304 connected to it will not change arbitrarily.

[0033] This utility model provides a molecular sieve filter, the specific working principle of which is as follows:

[0034] When the device is working, the fluid enters the internal space of the cylinder 1 through the opening of the cap 2. It first contacts the fine filter 404 at the top, where large impurities are intercepted. The fluid then flows through the coarse filter 403, where larger impurities are intercepted again, effectively preventing these impurities from clogging the adsorption pores of the molecular sieve. Finally, the fluid enters the molecular sieve area filled inside the confining ring 402, where small impurities are adsorbed by the molecular sieve. This process continues. To remove a failed molecular sieve, first place the container at the bottom of the mesh frame 401, then pull the confining ring 402. A gap appears at the lowest point of the guide surface 405 and guide surface 406 of the mesh frame 401. The molecular sieve flows outward through the gap. Guide surface 405 guides the molecular sieve to the top of guide surface 406, while guide surface 406 can trap the molecular sieve at the top. The sieve is guided outwards, and the molecular sieve can be completely discharged. If the filter component 4 needs to be replaced, the motor 303 is started to drive the lead screw 302 to rotate. The moving rod 304, which is slidably connected inside the mounting frame 301, can only move horizontally. The lead screw 302 can drive the moving rod 304 away from the cylinder 1. The mounting cover 306, which is connected to the cylinder 1, moves outwards, pushing the connecting plate 305 to rotate half a turn. The retaining ring 402 of the new molecular sieve is brought close to the cylinder 1. Then, the motor 303 drives the moving rod 304 to bring close to the cylinder 1. Subsequently, the mounting cover 306 is connected to the slot on the outside of the cylinder 1, thus completing the replacement. Since the top and bottom of the mounting cover 306 are both set as inclined surfaces, and the two inclined surfaces are symmetrically set, the mounting cover 306 will squeeze the inner wall of the slot during the connection process, which helps to improve the airtightness.

[0035] 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. A molecular sieve filter comprising a cartridge (1), characterised in that: An installation assembly (3) is installed on the outside of the cylinder (1). The installation assembly (3) includes a mounting bracket (301) fixedly connected to the outer wall of one side of the cylinder (1). A moving rod (304) is slidably inserted inside the mounting bracket (301). A horizontally arranged connecting plate (305) is rotatably connected to the outside of the moving rod (304). A mounting cover (306) is fixedly connected to both ends of the connecting plate (305), and the two mounting covers (306) are symmetrically arranged. A slot adapted to the mounting cover (306) is opened on the outer circumference of the cylinder (1). A sealing ring (307) is provided on the outside of the mounting cover (306), and the sealing ring (307) extends out of the mounting cover (306). The same positioning assembly (5) is installed between the moving rod (304) and the connecting plate (305).

2. A molecular sieve filter according to claim 1, wherein: The mounting bracket (301) is rotatably connected to a horizontally arranged lead screw (302), which is threadedly connected to a moving rod (304). A motor (303) is fixedly installed on one side of the outer wall of the mounting bracket (301), and the output end of the motor (303) is coaxially fixed with one end of the lead screw (302).

3. A molecular sieve filter according to claim 1, wherein: The positioning component (5) includes a mounting rod (501) fixedly connected to the top outer wall of the moving rod (304). A positioning rod (502) is slidably inserted into one end of the mounting rod (501). Two locking holes (503) adapted to the positioning rod (502) are opened on the top outer wall of the connecting plate (305). A spring (504) is sleeved on the outside of the positioning rod (502). The two ends of the spring (504) are fixedly connected to the end of the positioning rod (502) and the mounting rod (501) respectively.

4. The molecular sieve filter of claim 1, wherein: Both of the mounting covers (306) are equipped with filter components (4). The filter components (4) include a mesh frame (401) fixedly connected to the inner circumference of the mounting cover (306). A retaining ring (402) is slidably sleeved on the outside of the mesh frame (401). A stepped placement ring is provided inside the retaining ring (402). A coarse filter screen (403) and a fine filter screen (404) are respectively placed on the top of the two steps of the placement ring, and the fine filter screen (404) is at the top position.

5. A molecular sieve filter according to claim 4, wherein: The top outer wall of the mesh frame (401) is provided with inclined guide surfaces one (405) on both sides, and the two guide surfaces one (405) are symmetrically arranged. The top outer wall of the mesh frame (401) is provided with inclined guide surfaces two (406) in the middle.

6. The molecular sieve filter of claim 1, wherein: The top and bottom outer walls of the cylinder (1) are each fitted with a cap (2), and the cylinder (1) and the two caps (2) are fixedly connected by bolts.

7. A molecular sieve filter according to claim 2, wherein: The thread helix angle of the external thread groove of the lead screw (302) is less than the equivalent friction angle.

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