A skid-mounted pressure swing adsorption unit of rotary valve

Abstract

The utility model provides a kind of skid-mounted pressure swing adsorption device of rotary valve, comprising: rotary valve body and the valve plate being located in the inside of rotary valve body;Fixedly installed in the surface one side of valve plate's connecting shaft, the connecting shaft extends to the outside of rotary valve body, and is rotatably connected with rotary valve body. By the filter screen of opening filter baffle, make filter screen and adsorption plate intercommunication, and drive connecting frame to descend to compress spring, when the negative pressure of unloading material disappears, by the elastic force of spring drive connecting frame reset, make connecting rod drive impact block reset, impact block and adsorption plate and filter baffle contact collision, so that adsorption plate and filter baffle produce vibration and shake off residual material, thus realize the effect of removing residual material on the surface of adsorption plate and filter baffle, effectively improve the material adsorption effect and efficiency of rotary valve.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure swing adsorption devices, specifically to a skid-mounted pressure swing adsorption device with a rotary valve. Background Technology

[0002] Rotary valves are specialized devices used in powder (powder, granular materials, powder-granule mixtures) conveying systems for unloading, metering, dust removal, quantitative conveying, mixing, and packaging. They are widely used in industries such as chemical, environmental protection, petroleum, metallurgy, refractory materials, power, cement, plastics, food, and pharmaceuticals.

[0003] A known authorized patent with application number CN202223425943.8 discloses a skid-mounted pressure swing adsorption device for a rotary valve. Its background art points out the problem that "the rotary valve lacks a skid-mounted adsorption device, resulting in poor adsorption and discharge performance." To address this, the proposed solution includes a rotary valve body with an internal valve plate. The valve plate has a rotating shaft coaxially connected to its rear side, which penetrates the rear outer wall of the rotary valve body. The solution also includes two skid-mounted pressure swing adsorption devices, respectively located on the top and bottom surfaces of the valve plate, for adsorbing and discharging materials entering the rotary valve body.

[0004] However, the following problems were found in the implementation of the relevant technology: Although the provided technical solution achieved the effect of skid-mounted pressure swing adsorption, when the material was unloaded, some material was easily attached to and remained on the surface of the adsorption plate and the baffle. It was inconvenient to remove the material remaining on the surface of the adsorption plate and the baffle, which easily caused material waste and blockage of the baffle, thus reducing the material adsorption effect and efficiency of the rotary valve. Utility Model Content

[0005] This invention proposes a skid-mounted pressure swing adsorption device with a rotary valve, which solves the problem of inconvenience in removing residual materials from the adsorption plate and the baffle surface in related technologies.

[0006] The technical solution of this utility model is as follows: A skid-mounted pressure swing adsorption device for a rotary valve, comprising: a rotary valve body and a valve plate disposed inside the rotary valve body;

[0007] A connecting shaft is fixedly installed on one side of the valve plate surface. The connecting shaft extends through to the outside of the rotary valve body and is rotatably connected to the rotary valve body.

[0008] An adsorption plate is fixedly installed on the upper and lower sides of the valve plate. The adsorption plate has a hollow structure inside, and a number of adsorption holes are opened on the end face of the adsorption plate away from the valve plate.

[0009] A filter screen that is fixedly installed inside the adsorption pores;

[0010] An elastic mechanism located inside the adsorption plate;

[0011] A connecting rod mounted on the elastic mechanism and corresponding to several filter screens;

[0012] A collision block is fixedly connected to the top of the connecting rod, and the collision block is in contact with the adsorption plate and the filter screen;

[0013] And an extraction mechanism located on the valve plate to generate negative pressure inside the adsorption plate.

[0014] Preferably, the elastic mechanism includes a plurality of springs fixedly installed on the inner bottom wall of the adsorption plate, and a connecting frame fixedly installed on the top of the springs, with the plurality of connecting rods fixedly installed on the end face of the connecting frame away from the valve plate.

[0015] The connecting frame has an overall circular structure and is composed of multiple rings and a cross-shaped plate for connecting the multiple rings.

[0016] Preferably, the diameter of the valve plate is adapted to the internal dimensions of the rotary valve body, and the diameter of the adsorption plate is adapted to the diameter of the valve plate.

[0017] Preferably, the extraction mechanism includes an air inlet pipe fixedly installed on one end face of the two adsorption plates near the valve plate and extending through into the valve plate, a solenoid valve disposed on the surface of the air inlet pipe, a three-way connector fixedly installed between the two air inlet pipes, an air supply pipe installed through one side of the valve plate surface and connected to the three-way connector, and a connecting pipe rotatably connected to the other end of the air supply pipe.

[0018] The gas supply pipe extends through to the outside of the rotary valve body, and the gas supply pipe is rotatably connected to the rotary valve body.

[0019] The working principle and beneficial effects of this utility model are as follows:

[0020] The extraction mechanism, in conjunction with an external suction pump housing, achieves pressure swing adsorption of materials. During adsorption, the collision block moves downwards, connecting the filter screen and the adsorption plate. This, in turn, causes the connecting frame to move downwards, compressing the spring. When the negative pressure disappears after material discharge, the spring force resets the connecting frame, causing the connecting rod to reset the collision block. The collision block and the adsorption plate then collide with the filter screen, causing them to vibrate and shake off any remaining material. This effectively removes residual material from the surfaces of the adsorption plate and the filter screen, preventing material waste and clogging, ensuring the permeability of the filter screen, and significantly improving the material adsorption effect and efficiency of the rotary valve. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

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

[0023] Figure 2 This is a cross-sectional perspective view of the rotary valve body of this utility model.

[0024] Figure 3 This is a cross-sectional perspective view of the valve plate of this utility model.

[0025] Figure 4 This is a partial three-dimensional structural diagram of the connecting frame of this utility model;

[0026] Figure 5 This is a partial three-dimensional structural diagram of the gas transmission pipe of this utility model;

[0027] In the diagram: 1. Rotary valve body; 2. Valve plate; 3. Connecting shaft; 4. Adsorption plate; 5. Filter screen; 6. Connecting rod; 7. Collision block; 8. Spring; 9. Connecting frame; 10. Inlet pipe; 11. Solenoid valve; 12. T-connector; 13. Gas delivery pipe; 14. Connecting pipe. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Please see Figure 1 - Figure 5 The present invention provides a skid-mounted pressure swing adsorption device for a rotary valve, comprising: a rotary valve body 1 and a valve plate 2 disposed inside the rotary valve body 1;

[0030] A connecting shaft 3 is fixedly installed on one side of the surface of the valve plate 2. The connecting shaft 3 extends through to the outside of the rotary valve body 1 and is rotatably connected to the rotary valve body 1. A sealing ring is provided at the connection between the connecting shaft 3 and the rotary valve body 1.

[0031] The adsorption plate 4 is fixedly installed on the upper and lower sides of the valve plate 2. The adsorption plate 4 has a hollow structure inside, and several adsorption holes are opened on the end face of the adsorption plate 4 away from the valve plate 2.

[0032] A filter screen 5 is fixedly installed inside the adsorption holes;

[0033] An elastic mechanism is located inside the adsorption plate 4;

[0034] A connecting rod 6 is mounted on the elastic mechanism and corresponds to several filter screens 5;

[0035] The collision block 7 is fixedly connected to the top of the connecting rod 6. The collision block 7 is in contact with the adsorption plate 4 and the filter screen 5. The collision block 7 is made of rubber, and the diameter of the collision block 7 is slightly larger than the diameter of the filter screen 5 and the adsorption hole.

[0036] And an extraction mechanism provided on the valve plate 2 to generate negative pressure inside the adsorption plate 4.

[0037] The elastic mechanism includes multiple springs 8 fixedly installed on the inner bottom wall of the adsorption plate 4, and a connecting frame 9 fixedly installed on the top of the springs 8. Multiple connecting rods 6 are fixedly installed on the end face of the connecting frame 9 away from the valve plate 2. The elastic force of the springs 8 is less than the extraction air pressure of the extraction mechanism.

[0038] The connecting frame 9 has an overall circular structure and is composed of multiple rings and a cross-shaped plate for connecting the multiple rings.

[0039] The technical solution provided in this embodiment is as follows: In use, by connecting the connecting shaft 3 to the output end of the external motor, and connecting the extraction mechanism to the suction end of the external suction pump, during the adsorption process, the suction pump, in conjunction with the extraction mechanism, first creates a negative pressure inside the adsorption plate 4 located above the valve plate 2, thereby causing the upper adsorption plate 4 to adsorb the material. Under the action of the filter screen 5, the material is prevented from entering the adsorption plate 4. At the same time, the external motor drives the connecting shaft 3 to rotate the valve plate 2 and the adsorption plate 4, causing the upper and lower adsorption plates 4 to switch positions. The suction pump then stops suction. At this point, the negative pressure on the lower adsorption plate 4 disappears, allowing the material to be discharged, thus achieving the purpose of pressure swing adsorption. During the adsorption process of the adsorption plate 4, because the size of the collision block 7 is larger than that of the filter screen 5, it... The filter screen 5 is lowered during adsorption, allowing the collision block 7 to open and connect with the adsorption plate 4. External air pressure then enters the adsorption plate 4 through the filter screen 5, applying a downward force to the collision block 7, which in turn moves the connecting frame 9 downwards to compress the spring 8. When the adsorption plate 4 rotates to the point where the negative pressure for unloading disappears, the spring 8's elasticity causes the connecting frame 9 to reset, which in turn causes the connecting rod 6 to reset the collision block 7. The collision block 7 and the adsorption plate 4 then collide with the filter screen 5, causing them to vibrate and shake off any remaining material. This effectively removes residual material from the surfaces of the adsorption plate 4 and the filter screen 5, preventing material waste and clogging, ensuring the permeability of the filter screen 5, and effectively improving the material adsorption effect and efficiency of the rotary valve.

[0040] Furthermore, the diameter of the valve plate 2 is adapted to the internal dimensions of the rotary valve body 1, and the diameter of the adsorption plate 4 is adapted to the diameter of the valve plate 2.

[0041] Specifically, by adapting the dimensions of the valve plate 2 and the rotary valve body 1, the valve plate 2 can rotate smoothly inside the rotary valve body 1. Adapting the dimensions of the adsorption plate 4 and the valve plate 2 helps to make the adsorption area of ​​the adsorption plate 4 larger and the adsorption effect better.

[0042] Furthermore, the extraction mechanism includes an air inlet pipe 10 fixedly installed on one end face of the two adsorption plates 4 near the valve plate 2 and extending through into the interior of the valve plate 2, a solenoid valve 11 disposed on the surface of the air inlet pipe 10, a three-way connector 12 fixedly installed between the two air inlet pipes 10, an air supply pipe 13 installed through one side of the surface of the valve plate 2 and connected to the three-way connector 12, and a connecting pipe 14 rotatably connected to the other end of the air supply pipe 13, wherein the solenoid valve 11 is electrically connected to an external PLC.

[0043] The gas supply pipe 13 extends through to the outside of the rotary valve body 1, and the gas supply pipe 13 is rotatably connected to the rotary valve body 1. The gas supply pipe 13 is provided with a sealing ring at the connection between the rotary valve body 1 and the connecting pipe 14.

[0044] Specifically, during use, by connecting the connecting pipe 14 to the suction end of the external suction pump, during adsorption, the external PLC starts the suction pump, and the PLC controls the solenoid valve 11 on the air inlet pipe 10 above the valve plate 2 to open, so that the upper adsorption plate 4 and the air supply pipe 13 are connected. The suction pump, in conjunction with the connecting pipe 14, the air supply pipe 13, the three-way connector 12 and the air inlet pipe 10, draws the gas inside the adsorption plate 4 above the valve plate 2, so that a negative pressure is generated inside the adsorption plate 4, thereby adsorbing the material. At the same time, the external PLC controls the external motor, so that the output shaft of the external motor drives the connecting shaft 3 and the entire valve plate 2 to rotate. When the upper adsorption plate 4 rotates to the lower position, the PLC controls the suction pump to stop suction and closes the solenoid valve 11, so that the negative pressure of the lower adsorption plate 4 disappears, thus achieving the effect of material unloading. Then, the corresponding solenoid valve 11 of the adsorption plate 4 rotated to the upper position is opened again, and the suction pump draws air to generate negative pressure, so that the material can be adsorbed again.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A skid-mounted pressure swing adsorption device with a rotary valve, characterized in that, include: Rotary valve body (1) and valve plate (2) disposed inside the rotary valve body (1); A connecting shaft (3) is fixedly installed on one side of the surface of the valve plate (2). The connecting shaft (3) extends through to the outside of the rotary valve body (1) and is rotatably connected to the rotary valve body (1). The adsorption plate (4) is fixedly installed on the upper and lower sides of the valve plate (2). The adsorption plate (4) has a hollow structure inside, and a number of adsorption holes are opened on the end face of the adsorption plate (4) away from the valve plate (2). A filter screen (5) is fixedly installed inside the adsorption pores; An elastic mechanism is provided inside the adsorption plate (4); A connecting rod (6) is provided on the elastic mechanism and corresponds to several filter screens (5); A collision block (7) is fixedly connected to the top of the connecting rod (6), and the collision block (7) is in contact with the adsorption plate (4) and the filter screen (5); And an extraction mechanism provided on the valve plate (2) for generating negative pressure inside the adsorption plate (4).

2. The skid-mounted pressure swing adsorption device with a rotary valve according to claim 1, characterized in that, The elastic mechanism includes a plurality of springs (8) fixedly installed on the inner bottom wall of the adsorption plate (4), and a connecting frame (9) fixedly installed on the top of the springs (8), with a plurality of connecting rods (6) fixedly installed on one end face of the connecting frame (9) away from the valve plate (2).

3. The skid-mounted pressure swing adsorption device with a rotary valve according to claim 2, characterized in that, The connecting frame (9) is circular in shape and is composed of multiple rings and a cross-shaped plate for connecting the multiple rings.

4. The skid-mounted pressure swing adsorption device with a rotary valve according to claim 1, characterized in that, The diameter of the valve plate (2) is adapted to the internal dimensions of the rotary valve body (1), and the diameter of the adsorption plate (4) is adapted to the diameter of the valve plate (2).

5. The skid-mounted pressure swing adsorption device with a rotary valve according to claim 1, characterized in that, The extraction mechanism includes an air inlet pipe (10) fixedly installed on one end face of the two adsorption plates (4) near the valve plate (2) and extending through into the interior of the valve plate (2), a solenoid valve (11) provided on the surface of the air inlet pipe (10), a three-way connector (12) fixedly installed between the two air inlet pipes (10), an air supply pipe (13) installed through one side of the surface of the valve plate (2) and connected to the three-way connector (12), and a connecting pipe (14) rotatably connected to the other end of the air supply pipe (13).

6. The skid-mounted pressure swing adsorption device with a rotary valve according to claim 5, characterized in that, The gas supply pipe (13) extends through to the outside of the rotary valve body (1), and the gas supply pipe (13) is rotatably connected to the rotary valve body (1).

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