Pressure swing adsorption device for producing high-purity oxygen

Abstract

The utility model relates to the technical field of gas production devices, and discloses a pressure swing adsorption device for producing high-purity oxygen, which comprises an adsorption tank body and an air storage tank fixedly connected to one side of the adsorption tank body, the tops of the adsorption tank body and the air storage tank are fixedly connected with a pressurizer, and one side of the adsorption tank body is fixedly connected with an insertion pipe. One side of the air storage tank is fixedly connected with an air outlet pipe, and the adsorption tank body is connected with the air storage tank through the air outlet pipe. Through the arrangement of the electric push rod, the motor, the placement plate and the placement box, the effect that a worker can conveniently replace a filter part in the adsorption tank body is achieved, the working effect is improved, and the problems that most of existing pressure swing adsorption devices are of an integrated structure, and in the using process, the filter part cannot be replaced easily are solved. When a filter part in the device needs to be replaced or maintained, the device is inconvenient to use, and the use effect of the device is influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of gas production equipment, specifically a pressure swing adsorption device for producing high-purity oxygen. Background Technology

[0002] High concentrations of oxygen are often needed in medical or production processes. However, high concentrations of oxygen are not easy to produce and are generally produced by pressure swing adsorption (PSA). PSA uses air as raw material and utilizes the different diffusion rates of nitrogen and oxygen on the surface of carbon molecular sieves to separate nitrogen and oxygen from the air. This requires a PSA to operate, but existing PSA devices still have some problems in actual use.

[0003] For example, application number CN202322454626.7 provides a pressure swing adsorption (PSA) device for producing high-purity oxygen, including a base, an air storage tank on the top of the base, and a first adsorption tower on the side of the air storage tank. This device solves the problem that nitrogen is directly released back into the atmosphere during actual use, which cannot be effectively utilized and causes a certain degree of resource waste. Most existing PSA devices are integrated structures, which are inconvenient to use and affect the device's performance when the internal filters need to be replaced or maintained.

[0004] To address the aforementioned problems, a pressure swing adsorption (PSA) device for high-purity oxygen production is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pressure swing adsorption (PSA) device for high-purity oxygen production. By using this device, the problem of existing PSA devices being mostly integrated structures, which are inconvenient to use and affect the device's performance when the internal filter needs to be replaced or maintained, is solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure swing adsorption (PSA) device for producing high-purity oxygen, comprising an adsorption tank and an air storage tank fixedly connected to one side of the adsorption tank. A pressure booster is fixedly connected to the top of the adsorption tank and the air storage tank. A connector is fixedly connected to one side of the adsorption tank, and an outlet pipe is fixedly connected to one side of the air storage tank. The adsorption tank is connected to the air storage tank through the outlet pipe. The adsorption tank is provided with a replacement structure for replacing the filter element inside the adsorption tank. The replacement structure includes a connecting plate detachably disposed on the other side of the adsorption tank.

[0007] Preferably, a sealing strip is fixedly connected to the outer side of the connecting plate, an electric push rod is fixedly connected to the inside of the adsorption tank, and a locking block is fixedly connected to the output end of the electric push rod.

[0008] The above-described structure, through the setting of the sealing strip, enables a tight connection between the connecting plate and the adsorption tank, ensuring airtightness.

[0009] Preferably, a slot is provided on one side of the connecting plate, the slot is slidably engaged with the locking block, and a placement plate is fixedly connected to one side of the connecting plate.

[0010] The above-described structure, with its locking block and slot, allows staff to open the adsorption tank, making it convenient to use.

[0011] Preferably, the placement plate is provided with multiple sets, the placement plate is detachably provided with a sealing plate, the placement plate is provided with a set of limit grooves, and the bottom of the sealing plate is fixedly connected to a set of limit blocks.

[0012] The design of the above structure, with the setting of the limiting groove group and the limiting block group, makes it possible to remove the sealing plate from the placement plate, which improves convenience.

[0013] Preferably, the limiting groove group and the limiting block group are slidably engaged, a motor is fixedly connected inside the placement plate, and a screw is fixedly connected to the output end of the motor.

[0014] The above-described structural design, along with the inclusion of a motor, enables operators to easily replace the filter elements inside the adsorption tank.

[0015] Preferably, the screw is threadedly connected to a second locking block, which is slidably connected inside the placement plate. A placement box is fixedly connected to the sealing plate, and a through groove is provided on one side of the placement box.

[0016] The above-described structure allows the relevant components to be placed inside the placement box, thus improving the space utilization of the device.

[0017] Preferably, a second slot is provided on one side of the through groove, and the second slot is slidably engaged with the second slot. A through groove is provided on the top of the placement box. One set of through grooves is provided with PTFE composite filter material, another set of through grooves is provided with a glass fiber filter layer, and yet another set of through grooves is provided with a HEPA filter element.

[0018] The above-described structure, through the use of PTFE composite filter media, enables the filtration of gases entering the adsorption tank.

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

[0020] 1. This application, through the setting of electric push rod, motor, placement plate and placement box, enables the staff to easily replace the filter elements inside the adsorption tank, improves the working efficiency, and solves the problem that most existing pressure swing adsorption devices are integrated structures, which are inconvenient to use and affect the effect of the device when it is necessary to replace or maintain the internal filter elements during use.

[0021] 2. This application achieves the function of filtering the gas entering the adsorption tank by setting up a through channel, gas outlet pipe and pressurizer. This solves the problem that most existing pressure swing adsorption devices have only one function and are often inconvenient to filter gas during use, which affects the subsequent work process. 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 structural diagram of the air outlet pipe and connecting plate of this utility model;

[0024] Figure 3 This is a structural diagram of the placement plate and placement box of this utility model;

[0025] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is a structural diagram of the motor and the card block of this utility model.

[0027] In the diagram: 1. Adsorption tank; 11. Insertion pipe; 12. Connecting plate; 121. Sealing strip; 122. Electric push rod; 123. Locking block one; 124. Locking slot one; 13. Placement plate; 131. Sealing plate; 14. Limiting groove group; 141. Limiting block group; 142. Motor; 143. Screw; 144. Locking block two; 145. Locking slot two; 15. Placement box; 151. Through groove; 2. Air storage tank; 21. Air outlet pipe; 3. Pressurizer. Detailed Implementation

[0028] 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.

[0029] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0030] Combination Figures 1-3 A pressure swing adsorption (PSA) device for producing high-purity oxygen includes an adsorption tank 1 and an air storage tank 2 fixedly connected to one side of the adsorption tank 1. A pressure booster 3 is fixedly connected to the top of the adsorption tank 1 and the air storage tank 2. A connector 11 is fixedly connected to one side of the adsorption tank 1, and an outlet pipe 21 is fixedly connected to one side of the air storage tank 2. The adsorption tank 1 is connected to the air storage tank 2 through the outlet pipe 21. The adsorption tank 1 is provided with a replacement structure for replacing the filter inside the adsorption tank 1. The replacement structure includes a connecting plate 12 that is detachably provided on the other side of the adsorption tank 1.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Example 1:

[0033] To address the problem that most existing pressure swing adsorption (PSA) devices are integrated structures, which cause inconvenience and affect the device's performance when internal filter replacement or maintenance is required, this embodiment discloses the following technical solution, as detailed below. Figures 1-5As shown, a sealing strip 121 is fixedly connected to the outer side of the connecting plate 12, and an electric push rod 122 is fixedly connected to the inside of the adsorption tank 1. A locking block 123 is fixedly connected to the output end of the electric push rod 122. A locking groove 124 is provided on one side of the connecting plate 12, and the locking block 123 slides in cooperation with the locking groove 124. A placement plate 13 is fixedly connected to one side of the connecting plate 12. The placement plate 13 is provided with multiple sets of sealing plates. A sealing plate 131 is detachably provided on the placement plate 13. A limit groove group 14 is provided on the placement plate 13. A limit block group 141 is fixedly connected to the bottom of the sealing plate 131, and the limit groove group 14 slides in cooperation with the limit block group 141. A motor 142 is fixedly connected to the inside of the placement plate 13, and a screw 143 is fixedly connected to the output end of the motor 142. The screw 143 is threadedly connected to a locking block 144, which is slidably connected to the inside of the placement plate 13. A placement box 15 is fixedly connected to the sealing plate 131. A through groove 151 is opened on one side of the placement box 15, and a locking groove 145 is opened on one side of the through groove 151. The locking block 144 and the locking groove 145 are slidably engaged. A through groove 151 is opened on the top of the placement box 15. One set of through grooves 151 is filled with PTFE composite filter material, another set of through grooves 151 is filled with a glass fiber filter layer, and yet another set of through grooves 151 is filled with a HEPA filter element. During use, the mixed gas to be processed can be introduced into the insertion pipe 11. At this time, the pressurizer 3 can adjust the gas pressure inside the adsorption tank 1. When the air supply is raised and the outlet pipe 21 is closed, the gas passes through the placement box 15 on the placement plate 13. The PTFE composite filter material adsorbs water vapor and other droplets in the gas, while the glass fiber filter layer inhibits bacterial growth and has good permeability, preventing blockage. The HEPA filter efficiently filters out fine particles, bacteria, viruses, and other harmful substances, further improving the purity of the oxygen entering the air storage tank 2. When the filter inside the placement box 15 needs replacement after a period of use, the electric push rod 122 is activated. The electric push rod 122 moves the locking block 123, causing it to disengage from the slot 124 on the connecting plate 12. The connecting plate 12 can be pulled out from the inside of the adsorption tank 1, thereby moving the placement plate 13 out of the adsorption tank 1. Then, the motor 142 is started, driving the screw 143 to rotate, which in turn moves the second locking block 144. At this time, the second locking block 144 moves out of the second locking groove 145, and the placement box 15 can be removed from the placement plate 13. When installation is required, the limiting block group 141 at the bottom of the sealing plate 131 on the placement box 15 can be aligned with the limiting groove group 14 on the placement plate 13 and inserted. The motor 142 is started in reverse to fix the placement box 15. Then, the connecting plate 12 is placed back in its original position. Finally, the electric push rod 122 is started in reverse, and the first locking block 123 engages with the first locking groove 124, thereby fixing the connecting plate 12.This design allows staff to easily replace the filters inside the adsorption tank 1, improving work efficiency.

[0034] It should be noted that the aforementioned electrical components are equipped with power supplies, and their control methods are existing technologies. To avoid redundancy, they will be described here uniformly. Furthermore, this application is primarily for the protection of mechanical equipment, so the control methods and circuit connections will not be explained in detail herein. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, 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.

[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 pressure swing adsorption (PSA) device for producing high-purity oxygen, comprising an adsorption tank (1) and an air storage tank (2) fixedly connected to one side of the adsorption tank (1), wherein a pressure booster (3) is fixedly connected to the top of the adsorption tank (1) and the air storage tank (2), characterized in that: A connector (11) is fixedly connected to one side of the adsorption tank (1), and an air outlet pipe (21) is fixedly connected to one side of the air storage tank (2). The adsorption tank (1) is connected to the air storage tank (2) through the air outlet pipe (21). The adsorption tank (1) is provided with a replacement structure, which is used to replace the filter inside the adsorption tank (1). The replacement structure includes a connecting plate (12) that is detachably provided on the other side of the adsorption tank (1).

2. The pressure swing adsorption device for high-purity oxygen production according to claim 1, characterized in that: A sealing strip (121) is fixedly connected to the outside of the connecting plate (12), and an electric push rod (122) is fixedly connected to the inside of the adsorption tank (1). A locking block (123) is fixedly connected to the output end of the electric push rod (122).

3. The pressure swing adsorption device for high-purity oxygen production according to claim 2, characterized in that: A slot (124) is provided on one side of the connecting plate (12), and the first locking block (123) slides in cooperation with the slot (124). A placement plate (13) is fixedly connected to one side of the connecting plate (12).

4. The pressure swing adsorption device for high-purity oxygen production according to claim 3, characterized in that: The placement plate (13) is provided with multiple sets, and a sealing plate (131) is detachably provided on the placement plate (13). A limit groove group (14) is opened on the placement plate (13), and a limit block group (141) is fixedly connected to the bottom of the sealing plate (131).

5. The pressure swing adsorption device for high-purity oxygen production according to claim 4, characterized in that: The limiting groove group (14) and the limiting block group (141) are slidably engaged. A motor (142) is fixedly connected inside the placement plate (13), and a screw (143) is fixedly connected to the output end of the motor (142).

6. The pressure swing adsorption device for high-purity oxygen production according to claim 5, characterized in that: The screw (143) is threadedly connected to a second locking block (144), which is slidably connected to the inside of the placement plate (13). A placement box (15) is fixedly connected to the sealing plate (131), and a through groove (151) is provided on one side of the placement box (15).

7. The pressure swing adsorption device for high-purity oxygen production according to claim 6, characterized in that: A slot two (145) is provided on one side of the through groove (151), and the second card block (144) slides in cooperation with the second card slot (145). A through groove (151) is provided on the top of the placement box (15). One set of the through grooves (151) is provided with PTFE composite filter material, another set of the through grooves (151) is provided with glass fiber filter layer, and yet another set of the through grooves (151) is provided with HEPA filter element.

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