An ozone and oxygen recovery device separates ozone and oxygen by pressure swing adsorption

Abstract

This utility model discloses an oxygen recovery and utilization device that separates ozone and oxygen through pressure swing adsorption (PSA), belonging to the field of oxygen recovery and utilization equipment. The device includes adsorption towers and a buffer tank. Several adsorption towers are arranged, with the outermost tower connected to the buffer tank. A cleaning and leveling assembly is movably installed inside each adsorption tower. This assembly includes an inner support plate, a rotating rod, a lower support platform, a sliding sleeve, a brush, a limiting rod, a limiting sleeve, a screw sleeve, a mounting sleeve, and a scraper. By adjusting the scraper's structure, the scraper can be rotated to scrape the top of the molecular sieve, leveling it. This allows for more uniform adsorption as airflow passes through the adsorption layer, improving the adsorption effect. When the rotating rod rotates, the brush brushes the inner support plate, clearing the vent holes and preventing the molecular sieve and other crystalline structures from blocking the vents, ensuring smooth airflow.

Description

Technical Field

[0001] This utility model relates to the technical field of oxygen recovery and utilization equipment, and more specifically, to an oxygen recovery and utilization equipment that separates ozone and oxygen through pressure swing adsorption. Background Technology

[0002] Currently, the ozone gas produced by industrial oxygen source ozone generators is mostly a mixture of ozone and oxygen, with an ozone concentration of approximately 148 mg / L, consisting of about 10% ozone and 90% oxygen. To reduce costs and increase ozone concentration, an oxygen recovery and utilization device consisting of 2-4 or more adsorption towers and 1-2 or more buffer tanks can be used. This device utilizes the crystal structure of molecular sieves and achieves the separation of ozone and oxygen through pressure swing adsorption (pressure adsorption and depressurization release) combined with a timing control system. It can increase the ozone concentration from the conventional 148 mg / L in industry to an ultra-high concentration of 400 mg / L-800 mg / L. However, during the molecular sieve addition process, due to the complex operating environment inside the adsorption tower, it is difficult to spread the molecular sieve evenly, resulting in ozone not being able to pass through the adsorption layer evenly, thus reducing the adsorption efficiency. At the same time, the particle structure of the molecular sieve can also easily block the gas channel, affecting gas flow. Based on the above problems, this application proposes an oxygen recovery and utilization device that separates ozone and oxygen through pressure swing adsorption, aiming to effectively solve the problems related to molecular sieve laying and gas flow. Utility Model Content

[0003] The purpose of this invention is to provide an oxygen recovery and utilization device that separates ozone and oxygen through pressure swing adsorption, so as to solve the problems mentioned in the background art above:

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An oxygen recovery and utilization device that separates ozone and oxygen by pressure swing adsorption includes an adsorption tower and a buffer tank. Several adsorption towers are provided, and the adsorption tower on the outermost side is connected to the buffer tank. A cleaning and leveling assembly is movably installed inside the adsorption tower. The cleaning and leveling assembly includes an inner support plate, a rotating rod, a lower support platform, a sliding sleeve, a brush, a limiting rod, a limiting sleeve, a screw sleeve, a mounting sleeve, and a scraper.

[0006] The inner support plate is fixedly connected to the adsorption tower, the rotating rod is rotatably connected to the inner support plate, a molecular sieve is provided on the inner support plate, the lower support platform is fixedly connected to the lower part of the rotating rod, the sliding sleeve is slidably connected to the rotating rod, the brush is fixedly connected to the side of the sliding sleeve, the screw sleeve is threadedly connected to the upper part of the rotating rod, the mounting sleeve is rotatably connected to the screw sleeve, the scraper is movably mounted on the mounting sleeve, the limiting sleeve is fixedly connected to the bottom surface of the mounting sleeve, the limiting rod is fixedly connected to the rotating rod, and the limiting rod is movably connected inside the limiting sleeve.

[0007] By adopting the above technical solution, the brush structure is set to clear the air holes on the inner support plate, so as to avoid the blockage of airflow by crystal structures such as molecular sieves. The rotating rod drives the scraper to rotate, so that the molecular sieve is flattened and the airflow can pass through the adsorption layer evenly. The molecular sieve is a crystal structure and is composed of silicates, silicon dioxide, aluminum oxide and other composite metal oxides.

[0008] Preferably, the adsorption towers are interconnected by connecting pipes, and the adsorption towers and buffer tanks are also interconnected by connecting pipes. Each adsorption tower has a discharge port located on the side of the inner support plate.

[0009] Preferably, the cleaning and leveling assembly further includes a No. 1 bearing and a No. 1 bevel gear, the inner support plate has several ventilation holes, the lower end of the rotating rod is fixedly connected to the No. 1 bevel gear, and the rotating rod is rotatably connected to the inner support plate through the No. 1 bearing.

[0010] By adopting the above technical solution, the rotating rod can rotate at the center position of the inner support plate.

[0011] Preferably, the cleaning and leveling assembly further includes a second bevel gear, an operating lever, a second bearing, and a handwheel. The operating lever is rotatably connected to the adsorption tower via the second bearing. The handwheel is fixedly connected to the outer end of the operating lever. The second bevel gear is fixedly connected to the inner end of the operating lever. The second bevel gear meshes with the first bevel gear for transmission.

[0012] By adopting the above technical solution, the operating lever can drive the rotating rod to rotate.

[0013] Preferably, the cleaning and leveling assembly further includes a limiting plate, a limiting groove, an upper support platform, and a spring. The limiting plate is fixedly connected to the side of the rotating rod, the upper support platform is fixedly connected to the lower part of the sliding sleeve, the spring is movably mounted on the rotating rod and located between the upper support platform and the lower support platform, the limiting groove is formed on the sliding sleeve, and the sliding sleeve is slidably connected to the limiting plate of the rotating rod through the limiting groove.

[0014] By adopting the above technical solution, the spring can push the brush upward to squeeze the inner support plate.

[0015] Preferably, the cleaning and leveling assembly further includes a No. 3 bearing and a mounting groove. The mounting sleeve is rotatably connected to the threaded sleeve via the No. 3 bearing. The mounting groove is formed on the mounting sleeve. The scraper is movably installed in the mounting groove. Threads are engraved on the upper part of the rotating rod and inside the threaded sleeve.

[0016] By adopting the above technical solution, the screw sleeve can easily move up or down when the rotating rod rotates.

[0017] Preferably, the cleaning and leveling assembly further includes a mounting plate and a sliding rod, the mounting plate being fixedly connected inside the adsorption tower, the sliding rod being slidably connected to the mounting plate, and the lower end of the sliding rod being fixedly connected to a threaded sleeve.

[0018] By adopting the above technical solution, the up-and-down movement of the slide bar restricts the screw sleeve, preventing the screw sleeve from deflecting.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1) This cleaning and leveling component, after adjusting the structure of the scraper, rotates the scraper to scrape the top of the molecular sieve, so that the molecular sieve is leveled. When the airflow passes through the adsorption layer, the adsorption is more uniform and the adsorption effect is improved.

[0021] 2) When the rotating rod of this cleaning and leveling component is rotated, the brush brushes against the inner support plate, making it easy to clear the vent holes and preventing the molecular sieve and other crystal structures from blocking the vent holes, thus ensuring smooth airflow. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the adsorption tower of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure on the rotating rod of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the sliding sleeve of this utility model;

[0026] Figure 5 This is a schematic diagram of the limiting plate and limiting rod structure on the rotating rod of this utility model;

[0027] Figure 6 This is a schematic diagram showing the disassembled screw sleeve of this utility model.

[0028] The following are the labeling instructions in the diagram: 1. Adsorption tower; 2. Buffer tank; 3. Connecting pipe; 4. Cleaning and leveling assembly; 5. Discharge port; 401. Inner support plate; 402. Rotating rod; 403. Bearing No. 1; 404. Bevel gear No. 1; 405. Bevel gear No. 2; 406. Operating lever; 407. Bearing No. 2; 408. Handwheel; 409. Limiting plate; 410. Lower support platform; 411. Sliding sleeve; 412. Limiting groove; 413. Upper support platform; 414. Brush; 415. Spring; 416. Limiting rod; 417. Limiting sleeve; 418. Screw sleeve; 419. Bearing No. 3; 420. Mounting sleeve; 421. Mounting groove; 422. Scraper; 423. Mounting plate; 424. Sliding rod. Detailed Implementation

[0029] Example 1, please refer to Figures 1 to 5 An oxygen recovery and utilization device that separates ozone and oxygen by pressure swing adsorption includes an adsorption tower 1 and a buffer tank 2. Several adsorption towers 1 are provided, and the adsorption tower 1 on the outermost side is interconnected with the buffer tank 2. The mixed gas of ozone and oxygen passes through the adsorption tower 1 and the buffer tank 2 in sequence. A cleaning and leveling assembly 4 is movably installed inside the adsorption tower 1. The cleaning and leveling assembly 4 includes an inner support plate 401, a rotating rod 402, a lower support platform 410, a sliding sleeve 411, a brush 414, a limiting rod 416, a limiting sleeve 417, a screw sleeve 418, an installation sleeve 420, and a scraper 422.

[0030] An inner support plate 401 is fixedly connected to the adsorption tower 1. Several ventilation holes are provided on the inner support plate 401. A rotating rod 402 is rotatably connected to the inner support plate 401. Molecular sieves are provided on the inner support plate 401. The molecular sieves form an adsorption layer to adsorb ozone in the mixed gas. A lower support platform 410 is fixedly connected to the lower part of the rotating rod 402. A sliding sleeve 411 is slidably connected to the rotating rod 402. The sliding sleeve 411 slides up and down on the rotating rod 402. A brush 414 is fixedly connected to the side of the sliding sleeve 411. The brush 414 rotates synchronously with the rotating rod 402.

[0031] The adsorption towers 1 are interconnected by connecting pipes 3. The adsorption tower 1 and the buffer tank 2 are also interconnected by connecting pipes 3. The adsorption tower 1 is provided with a discharge port 5, which is located on the side of the inner support plate 401. This facilitates the addition or removal of molecular sieves through the discharge port 5. Molecular sieves are crystalline structures composed of silicates, silicon dioxide, alumina and other composite metal oxides.

[0032] The cleaning and leveling assembly 4 also includes a first bearing 403 and a first bevel gear 404. Several ventilation holes are provided on the inner support plate 401. The lower end of the rotating rod 402 is fixedly connected to the first bevel gear 404. The rotating rod 402 is rotatably connected to the inner support plate 401 through the first bearing 403. The scraper 422 and other structures on the rotating rod 402 are located above the inner support plate 401, and the brush 414 and other structures are located below the inner support plate 401.

[0033] The cleaning and leveling assembly 4 also includes a second bevel gear 405, an operating lever 406, a second bearing 407, and a handwheel 408. The operating lever 406 is rotatably connected to the adsorption tower 1 via the second bearing 407, allowing the operating lever 406 to rotate. The handwheel 408 is fixedly connected to the outer end of the operating lever 406 for easy operation. The second bevel gear 405 is fixedly connected to the inner end of the operating lever 406, and the second bevel gear 405 meshes with the first bevel gear 404 for transmission, making it easy for the operating lever 406 to drive the rotating rod 402 to rotate.

[0034] The cleaning and leveling assembly 4 also includes a limiting plate 409, a limiting groove 412, an upper support platform 413, and a spring 415. The limiting plate 409 is fixedly connected to the side of the rotating rod 402. The upper support platform 413 is fixedly connected to the lower part of the sliding sleeve 411. The spring 415 is movably mounted on the rotating rod 402 and is located between the upper support platform 413 and the lower support platform 410, so that the spring 415 can push the sliding sleeve 411 upward to move. The limiting groove 412 is formed on the sliding sleeve 411, and the sliding sleeve 411 is slidably connected to the limiting plate 409 of the rotating rod 402 through the limiting groove 412.

[0035] The steps of using this utility model are as follows: Rotate the handwheel 408, which drives the operating lever 406 to rotate. The operating lever 406 drives the rotating rod 402 to rotate through the first bevel gear 404 and the second bevel gear 405. The second rotating rod 402 drives the sliding sleeve 411 to rotate through the limiting plate 409 and the limiting groove 412. The sliding sleeve 411 drives the brush 414 to rotate. The spring 415 is located between the upper support platform 413 and the lower support platform 410. Pushing the spring 415 upwards makes the brush 414 fit tightly against the inner support plate 401. During the rotation, the brush continuously brushes the inner support plate 401, making it less likely for the molecular sieve and other crystal structures to block the vent holes on the inner support plate 401. This allows the mixed gas to pass through the inner support plate 401 more easily, improving the smoothness of airflow.

[0036] Example 2, please refer to Figures 1 to 6 The difference from Embodiment 1 is that the threaded sleeve 418 is threadedly connected to the upper part of the rotating rod 402, so that the threaded sleeve 418 can easily move up or down when the rotating rod 402 rotates. The mounting sleeve 420 is rotatably connected to the threaded sleeve 418. The scraper 422 is movably mounted on the mounting sleeve 420, so that the scraper 422 and the mounting sleeve 420 move synchronously. The limiting sleeve 417 is fixedly connected to the bottom surface of the mounting sleeve 420. The limiting rod 416 is fixedly connected to the rotating rod 402 and movably connected inside the limiting sleeve 417, so that the rotating rod 402 can easily drive the mounting sleeve 420 and the scraper 422 to rotate synchronously.

[0037] The cleaning and leveling assembly 4 also includes a No. 3 bearing 419 and a mounting groove 421. The mounting sleeve 420 is rotatably connected to the threaded sleeve 418 via the No. 3 bearing 419. The mounting groove 421 is formed on the mounting sleeve 420. The scraper 422 is movably installed in the mounting groove 421. The scraper 422 is movably connected in the mounting groove 421. The upper part of the rotating rod 402 and the threaded sleeve 418 are both threaded.

[0038] The cleaning and leveling assembly 4 also includes a mounting plate 423 and a sliding rod 424. The mounting plate 423 is fixedly connected inside the adsorption tower 1, and the sliding rod 424 is slidably connected to the mounting plate 423. The sliding rod 424 moves up and down, and the lower end of the sliding rod 424 is fixedly connected to the screw sleeve 418, so that the screw sleeve 418 can only move up and down along the rotating rod 402.

[0039] The steps of using this utility model are as follows: When the rotating rod 402 rotates, the screw sleeve 418 is threadedly connected to the rotating rod 402. The upper end of the screw sleeve 418 is slidably connected to the mounting plate 423 through the sliding rod 424, so that the screw sleeve 418 will not deflect. When the rotating rod 402 rotates, the screw sleeve 418 moves up or down, and the limiting sleeve 417 slides up or down synchronously with the limiting rod 416. The maximum height of the limiting sleeve 417 is limited by the mounting plate 423, which is located above the rotating rod 402. 02 are not connected, but the limiting sleeve 418 moves off the rotating rod 402, and the limiting sleeve 417 moves upward to the maximum distance. When the sleeve 418 drives the scraper 422 to move to the appropriate position above the molecular sieve, the rotating rod 402 continues to rotate, the limiting rod 416 rotates synchronously, and drives the mounting sleeve 420 to rotate synchronously through the limiting sleeve 417. The scraper 422 inside the mounting sleeve 420 rotates synchronously to scrape the top of the molecular sieve, so that the molecular sieve is flattened, which makes it easier for the mixed gas to pass through the adsorption layer evenly and improve the adsorption effect.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oxygen recovery and utilization device that separates ozone and oxygen by pressure swing adsorption, comprising an adsorption tower (1) and a buffer tank (2), characterized in that: The adsorption tower (1) is provided in several parts, and the adsorption tower (1) on the outermost side is connected to the buffer tank (2). A cleaning and leveling assembly (4) is movably installed inside the adsorption tower (1). The cleaning and leveling assembly (4) includes an inner support plate (401), a rotating rod (402), a lower support platform (410), a sliding sleeve (411), a brush (414), a limiting rod (416), a limiting sleeve (417), a screw sleeve (418), an installation sleeve (420), and a scraper (422). The inner support plate (401) is fixedly connected to the adsorption tower (1), the rotating rod (402) is rotatably connected to the inner support plate (401), a molecular sieve is provided on the inner support plate (401), the lower support platform (410) is fixedly connected to the lower part of the rotating rod (402), the sliding sleeve (411) is slidably connected to the rotating rod (402), the brush (414) is fixedly connected to the side of the sliding sleeve (411), the screw sleeve (418) is threadedly connected to the upper part of the rotating rod (402), the mounting sleeve (420) is rotatably connected to the screw sleeve (418), the scraper (422) is movably installed on the mounting sleeve (420), the limiting sleeve (417) is fixedly connected to the bottom surface of the mounting sleeve (420), the limiting rod (416) is fixedly connected to the rotating rod (402), and the limiting rod (416) is movably connected inside the limiting sleeve (417).

2. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 1, characterized by: The adsorption towers (1) are connected to each other by connecting pipes (3). The adsorption towers (1) and the buffer tank (2) are also connected by connecting pipes (3). The adsorption towers (1) are provided with discharge ports (5), which are located on the side of the inner support plate (401).

3. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 1, characterized by: The cleaning and leveling assembly (4) also includes a first bearing (403) and a first bevel gear (404). The inner support plate (401) has several ventilation holes. The lower end of the rotating rod (402) is fixedly connected to the first bevel gear (404). The rotating rod (402) is rotatably connected to the inner support plate (401) through the first bearing (403).

4. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 3, characterized by: The cleaning and leveling assembly (4) also includes a second bevel gear (405), an operating lever (406), a second bearing (407), and a handwheel (408). The operating lever (406) is rotatably connected to the adsorption tower (1) through the second bearing (407). The handwheel (408) is fixedly connected to the outer end of the operating lever (406). The second bevel gear (405) is fixedly connected to the inner end of the operating lever (406). The second bevel gear (405) meshes with the first bevel gear (404) for transmission.

5. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 1, characterized by: The cleaning and leveling assembly (4) also includes a limiting plate (409), a limiting groove (412), an upper support platform (413), and a spring (415). The limiting plate (409) is fixedly connected to the side of the rotating rod (402). The upper support platform (413) is fixedly connected to the lower part of the sliding sleeve (411). The spring (415) is movably installed on the rotating rod (402) and located between the upper support platform (413) and the lower support platform (410). The limiting groove (412) is opened on the sliding sleeve (411). The sliding sleeve (411) is slidably connected to the limiting plate (409) of the rotating rod (402) through the limiting groove (412).

6. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 1, characterized by: The cleaning and leveling assembly (4) also includes a No. 3 bearing (419) and a mounting groove (421). The mounting sleeve (420) is rotatably connected to the threaded sleeve (418) via the No. 3 bearing (419). The mounting groove (421) is opened on the mounting sleeve (420). The scraper (422) is movably installed in the mounting groove (421). The upper part of the rotating rod (402) and the threaded sleeve (418) are both engraved with threads.

7. The ozone and oxygen separation and recovery apparatus by pressure swing adsorption according to claim 1, characterized by: The cleaning and leveling assembly (4) also includes a mounting plate (423) and a sliding rod (424). The mounting plate (423) is fixedly connected inside the adsorption tower (1), and the sliding rod (424) is slidably connected to the mounting plate (423). The lower end of the sliding rod (424) is fixedly connected to the screw sleeve (418).

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