Nitrogen-making adsorption cylinder convenient to assemble

Abstract

The utility model discloses a nitrogen-making adsorption barrel convenient to assemble, and relates to the field of nitrogen-making adsorption barrels. The carbon molecular sieve drum comprises a drum body, a carbon molecular sieve drum and a stirring shaft, fins are arranged on the outer surface of the stirring shaft, the fins are spiral fins, stirring rods which are arranged at intervals in a staggered mode are arranged between the spiral fins, and a second flange plate used for connection is installed at the top of the stirring shaft. By arranging the stirring shaft, the fins and the stirring rod, when the carbon molecular sieve is replaced, a worker opens the plate valve and the motor, the motor drives the stirring shaft to rotate, the stirring shaft drives the fins to rotate, carbon molecular particles are extruded and discharged through the discharging pipe, meanwhile, under the action of the stirring rod, force balance of the carbon molecular particles on the side edge is broken, and the carbon molecular sieve is replaced. Under the action of gravity, carbon molecule particles are discharged through the discharging pipe, the discharging mode is simple, the discharging efficiency is high, and a fan does not need to be used for blowing for a long time.

Description

Technical Field

[0001] The utility model relates to the field of nitrogen-making adsorption cylinders, in particular to a nitrogen-making adsorption cylinder which is easy to assemble. Background Art

[0002] The nitrogen generator is a nitrogen production equipment designed and manufactured according to the pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as adsorbent and adopts the pressure swing adsorption principle (PSA) at room temperature to separate air to produce high-purity nitrogen. Usually two adsorption towers are used in parallel, and the imported pneumatic valve is automatically operated by the imported PLC to alternately perform pressurized adsorption and decompression regeneration to complete the separation of nitrogen and oxygen and obtain the required high-purity nitrogen.

[0003] According to the search, Chinese patent application number 202320704872.0 discloses a nitrogen production adsorption cylinder that is easy to replace the carbon molecular sieve, which blows out the carbon molecular sieve by wind. However, when implementing this scheme, it was found that due to long-term adsorption, the particles in the carbon molecular sieve are easily solidified, resulting in the carbon molecular sieve having a certain solid shape. It is not easy to blow it out when blowing, which is inconvenient to use. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a nitrogen adsorption cylinder that is easy to assemble to solve the technical problem that the particles in the carbon molecular sieve are easily solidified after adsorption, resulting in the carbon molecular sieve having a certain solid shape and not being easy to blow out when blowing.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a nitrogen adsorption cylinder that is easy to assemble, comprising a cylinder body and a carbon molecular sieve cylinder.

[0006] A stirring shaft, wherein the outer surface of the stirring shaft is provided with fins, the fins are spiral fins, stirring rods arranged alternately at intervals are provided between the spiral fins, and a second flange for connection is installed on the top of the stirring shaft;

[0007] The gas distribution plate is located below the carbon molecular sieve cylinder. A downwardly inclined gas inlet nozzle is installed on one side of the gas distribution plate. The gas inlet nozzle penetrates the cylinder and extends to the outside thereof.

[0008] By adopting the above technical solution, the discharge process is simplified, and particles can be easily discharged from the discharge pipe, which improves the discharge efficiency and reduces the need for long-term blowing with a fan, thereby reducing energy consumption and operating costs.

[0009] Furthermore, a detachable cover plate is provided on the top of the cylinder, a bolt hole is provided on the bottom of the cover plate, a first flange is installed on the outer side of the top of the cylinder, and the first flange is connected to the cover plate by bolts.

[0010] By adopting the above technical solution, the installation and removal of the cover plate becomes simple and quick. The staff can easily open or close the cylinder, which is convenient for replacing the carbon molecular sieve, overhauling the equipment and daily maintenance and cleaning.

[0011] Furthermore, a motor is installed on the top of the cover plate, the output end of the motor is connected to a driving shaft passing through the cover plate, cylinders are installed on both sides of the motor, the output end of the cylinder is connected to a telescopic rod passing through the cover plate, and the end of the telescopic rod is connected to a pressure plate.

[0012] By adopting the above technical solution, the cylinder controls the pressure plate through the telescopic rod to compact the carbon molecular sieve, ensuring its stability and adsorption effect during the working process.

[0013] Furthermore, a clamping ring is fixed to the inner wall of the cylinder, the top of the carbon molecular sieve cylinder is placed on the clamping ring by gravity, the pressure plate is located above the carbon molecular sieve cylinder, a discharge pipe is installed at the bottom of the carbon molecular sieve cylinder, and a plate valve is installed on the discharge pipe.

[0014] By adopting the above technical solution, the installation and removal of the carbon molecular sieve cartridge becomes simple and quick. The staff only needs to place the carbon molecular sieve cartridge on the clamping ring without using complicated tools or performing tedious fixing operations, which greatly improves work efficiency.

[0015] Furthermore, a bearing is installed at the center of the pressure plate, and the bearing is used to maintain the stability of the stirring shaft.

[0016] By adopting the above technical solution, the bearing is installed at the center of the pressure plate, providing a stable support point for the agitator shaft, ensuring that the agitator shaft can remain stable during rotation and is not prone to shaking or deviation, thereby improving the working stability and reliability of the agitator shaft.

[0017] Furthermore, the bottom end of the driving shaft is fixedly connected to the stirring shaft via a second flange, the stirring shaft passes through the bearing, and the second flange is located above the bearing.

[0018] By adopting the above technical solution, the driving shaft and the stirring shaft are fixedly connected through the second flange, thereby ensuring the stability and reliability of the connection between the two. This connection method can withstand greater torque and vibration, prevents the stirring shaft from loosening or falling off during operation, and ensures the consistency and stability of the stirring effect.

[0019] Furthermore, the gas distribution plate is funnel-shaped, the diameter of the bottom center of the gas distribution plate is larger than the diameter of the discharge pipe, and a plurality of uniform pores are formed on the gas distribution plate, and the pores penetrate the bottom of the carbon molecular sieve cylinder.

[0020] By adopting the above technical solution, a number of uniform air holes opened on the gas distribution plate ensure that the gas can evenly enter the bottom of the carbon molecular sieve cylinder, thereby achieving uniform gas distribution, improving the adsorption efficiency and uniformity of the carbon molecular sieve, and helping to improve the purity of nitrogen production.

[0021] Furthermore, the bottom of the cylinder is funnel-shaped, the bottom shape of the carbon molecular sieve cylinder is adapted to the cylinder, and the bottom of the cylinder is fixed with support legs arranged in a circular array.

[0022] By adopting the above technical solution, the funnel-shaped design of the gas distribution plate is not only conducive to the uniform distribution of airflow, but also can optimize the overall structure and improve space utilization. By reasonably designing the size and shape of the gas distribution plate, it can ensure its coordination with the carbon molecular sieve cylinder, discharge pipe and other components to achieve a compact and efficient structural layout.

[0023] Furthermore, an operation panel is installed on the outer surface of the cylinder, and the operation panel is electrically connected to the motor and the cylinder.

[0024] By adopting the above technical solution, the operation panel enables the operator to intuitively control and monitor the working status of the motor and cylinder. Through simple button or touch screen operation, the operator can easily start, stop or adjust the operating parameters of the motor and cylinder without complicated operating steps or professional knowledge, which greatly improves the convenience of operation.

[0025] Furthermore, vertically arranged exhaust holes are installed on the top of the cover plate, and the pressing plate is a wire mesh plate.

[0026] By adopting the above technical solution, the pressure plate adopts a wire mesh plate design, which can not only provide uniform support force to ensure the stability of the carbon molecular sieve cylinder during operation, but also achieve uniform compression of the carbon molecular sieve through its mesh structure. This uniform compression helps to maintain the close arrangement of the carbon molecular sieve particles and improve its adsorption efficiency and stability.

[0027] In summary, the utility model mainly has the following beneficial effects:

[0028] 1. The utility model is provided with a stirring shaft, fins and a stirring rod. When replacing the carbon molecular sieve, the staff opens the plate valve and the motor, the motor drives the stirring shaft to rotate, the stirring shaft drives the fins to rotate, the carbon molecular particles are squeezed, and discharged through the discharge pipe. At the same time, under the action of the stirring rod, the force balance of the carbon molecular particles on the side is broken, and under the action of gravity, the carbon molecular particles are discharged through the discharge pipe. This discharge method is simple and has high discharge efficiency, and there is no need to use a fan to blow for a long time;

[0029] 2. The utility model is provided with a gas distribution plate, which is in the shape of an annular funnel, and a plurality of air holes penetrate into the carbon molecular sieve cylinder. During adsorption, the user only needs to connect the gas source with the air inlet nozzle, and the gas can evenly enter the carbon molecular sieve cylinder through the gas distribution plate, thereby improving the quality of adsorption and the purity of nitrogen production.

[0030] 3. The utility model is convenient for installation, disassembly and maintenance by providing a cover plate and a detachable carbon molecular sieve cartridge, which is convenient for workers to assemble and improves installation efficiency. The operation is simple and no complicated assembly method is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the cylinder of the utility model;

[0033] Figure 3 It is a schematic diagram of the local structure of the fin of the utility model;

[0034] Figure 4 It is a schematic diagram of the structure of the air distribution disk of the utility model.

[0035] In the figure: 1. Cylinder body; 11. First flange; 12. Operation panel; 13. Support leg; 14. Bolt; 2. Cover plate; 21. Exhaust hole; 3. Motor; 31. Drive shaft; 4. Cylinder; 41. Telescopic rod; 5. Carbon molecular sieve cylinder; 6. Press plate; 61. Bearing; 7. Stirring shaft; 71. Fin; 72. Stirring rod; 73. Second flange; 8. Air distribution plate; 81. Air inlet nozzle; 9. Discharge pipe; 91. Plate valve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0037] The following describes an embodiment of the utility model based on its overall structure.

[0038] Embodiment 1:

[0039] A nitrogen adsorption cylinder that is easy to assemble, such as Figure 1-Figure 4 As shown, it includes a cylinder 1 and a carbon molecular sieve cylinder 5.

[0040] A stirring shaft 7, the outer surface of the stirring shaft 7 is provided with fins 71, the fins 71 are spiral fins, stirring rods 72 arranged alternately at intervals are provided between the spiral fins, and a second flange 73 for connection is installed on the top of the stirring shaft 7;

[0041] The gas distribution plate 8 is located below the carbon molecular sieve cylinder 5. A downward-inclined air inlet nozzle 81 is installed on one side of the gas distribution plate 8. The air inlet nozzle 81 penetrates the cylinder 1 and extends to the outside thereof, which simplifies the discharge process and can easily discharge the particles from the discharge pipe, thereby improving the discharge efficiency and reducing the need for long-term blowing with a fan, thereby reducing energy consumption and operating costs. The gas distribution plate is located below the carbon molecular sieve cylinder and is provided with a downward-inclined air inlet nozzle, so that the gas can enter the carbon molecular sieve cylinder evenly and effectively, ensuring the uniformity and efficiency of the adsorption process. At the same time, the shape and position of the gas distribution plate also optimize the airflow path, reduce airflow resistance and dead corners, and improve the adsorption effect and nitrogen purity.

[0042] See also Figure 1 and Figure 2 The top of the cylinder 1 is provided with a detachable cover plate 2, and the bottom of the cover plate 2 is provided with bolt holes. A first flange 11 is installed on the outer side of the top of the cylinder 1. The first flange 11 is connected to the cover plate 2 by bolts 14, making the installation and removal of the cover plate simple and quick. The staff can easily open or close the cylinder, which is convenient for the replacement of carbon molecular sieves, equipment maintenance and daily maintenance and cleaning. The detachable cover plate design allows maintenance personnel to easily approach the internal structure of the nitrogen adsorption cylinder, so as to quickly locate the problem and repair it, which greatly shortens the maintenance time, improves the maintenance efficiency of the equipment, and reduces the losses caused by downtime maintenance. Through the tight connection of the bolts and the flange, the sealing of the cylinder during the working process can be ensured to prevent gas leakage. This helps to maintain the pressure inside the nitrogen adsorption cylinder stable, improve the adsorption efficiency and nitrogen purity.

[0043] See also Figure 1 and Figure 2 A motor 3 is installed on the top of the cover plate 2, and the output end of the motor 3 is connected to a driving shaft 31 that passes through the cover plate 2. Cylinders 4 are installed on both sides of the motor 3, and the output end of the cylinder 4 is connected to a telescopic rod 41 that passes through the cover plate 2. The end of the telescopic rod 41 is connected to a pressing plate 6. The cylinder controls the pressing plate through the telescopic rod to compact the carbon molecular sieve to ensure its stability and adsorption effect during the working process. The staff only needs to perform simple operations to start the motor and the cylinder without complicated mechanical adjustments or manual operations. This reduces the difficulty of operation and improves the convenience of operation, so that non-professionals can also easily operate the equipment.

[0044] See also Figure 2, a clamping ring is fixed on the inner wall of the cylinder 1, the top of the carbon molecular sieve cylinder 5 is placed on the clamping ring by gravity, the pressing plate 6 is located above the carbon molecular sieve cylinder 5, and a discharge pipe 9 is installed at the bottom of the carbon molecular sieve cylinder 5, and a plate valve 91 is installed on the discharge pipe 9, making the installation and removal of the carbon molecular sieve cylinder simple and quick. The staff only needs to place the carbon molecular sieve cylinder on the clamping ring, without the need to use complex tools or perform cumbersome fixing operations, which greatly improves the work efficiency. The fixing effect of the clamping ring allows the carbon molecular sieve cylinder to maintain a stable position in the cylinder, avoiding displacement or damage caused by vibration or impact during the work process. At the same time, the pressing plate is located above the carbon molecular sieve cylinder and is compacted by the telescopic rod of the cylinder, ensuring the compactness and stability of the carbon molecular sieve during work. When the carbon molecular sieve needs to be replaced, the plate valve is opened, and the motor drives the stirring shaft to rotate, and the carbon molecular sieve particles are squeezed and discharged through the discharge pipe. The discharge process is efficient and thorough, reducing residues.

[0045] See also Figure 2 A bearing 61 is installed at the center of the pressing plate 6. The bearing 61 is used to maintain the stability of the stirring shaft 7. The bearing is installed at the center of the pressing plate, providing a stable support point for the stirring shaft, ensuring that the stirring shaft can remain stable during rotation and is not prone to shaking or deviation, thereby improving the working stability and reliability of the stirring shaft. The bearing reduces the direct contact between the stirring shaft and the pressing plate, reduces friction and wear, which not only extends the service life of the stirring shaft and the pressing plate, but also reduces the heat and noise generated by friction, thereby improving the overall performance and stability of the equipment.

[0046] See also Figure 2 and Figure 3 The bottom end of the driving shaft 31 is fixedly connected to the stirring shaft 7 through the second flange 73. The stirring shaft 7 passes through the bearing 61. The second flange 73 is located above the bearing 61. The driving shaft and the stirring shaft are fixedly connected through the second flange, ensuring the stability and reliability of the connection between the two. This connection method can withstand greater torque and vibration, prevents the stirring shaft from loosening or falling off during operation, and ensures the consistency and stability of the stirring effect. When the stirring shaft needs to be replaced or repaired, it can be easily carried out by simply removing the flange, reducing maintenance costs and time.

[0047] Embodiment 2:

[0048] See also Figure 2 and Figure 4The gas distribution plate 8 is funnel-shaped, and the diameter of the bottom center of the gas distribution plate 8 is larger than the diameter of the discharge pipe 9. A number of uniform air holes are provided on the gas distribution plate 8, and the air holes penetrate the bottom of the carbon molecular sieve cylinder 5. The uniform air holes provided on the gas distribution plate ensure that the gas can enter the bottom of the carbon molecular sieve cylinder evenly, thereby achieving uniform gas distribution, improving the adsorption efficiency and uniformity of the carbon molecular sieve, and helping to improve the purity of nitrogen production. The funnel-shaped gas distribution plate can effectively guide the airflow and reduce the turbulence and eddy current of the airflow under the carbon molecular sieve cylinder. This stable airflow helps to reduce energy loss and improve adsorption efficiency, and also helps to extend the service life of the carbon molecular sieve.

[0049] See also Figure 1 and Figure 2 The bottom of the cylinder 1 is funnel-shaped, and the bottom shape of the carbon molecular sieve cylinder 5 is adapted to the cylinder 1. The bottom of the cylinder 1 is fixed with supporting legs 13 arranged in a circular array. The funnel-shaped design of the air distribution plate is not only conducive to the uniform distribution of airflow, but also can optimize the overall structure and improve space utilization. By reasonably designing the size and shape of the air distribution plate, it can ensure its coordination with the carbon molecular sieve cylinder, discharge pipe and other components to achieve a compact and efficient structural layout.

[0050] See also Figure 1 An operation panel 12 is installed on the outer surface of the cylinder 1. The operation panel 12 is electrically connected to the motor 3 and the cylinder 4. The operation panel enables the operator to intuitively control and monitor the working status of the motor and the cylinder. Through simple button or touch screen operation, the operator can easily start, stop or adjust the operating parameters of the motor and the cylinder without complicated operating steps or professional knowledge, which greatly improves the convenience of operation. The operation panel usually has a real-time display function, which can display the real-time operating status, working parameters and fault information of the motor and the cylinder, which enables the operator to understand the working condition of the equipment in a timely manner.

[0051] See also Figure 1 and Figure 2 The top of the cover plate 2 is provided with vertically arranged exhaust holes 21, and the exhaust holes 21 are provided with solenoid valves for controlling opening and closing. The pressing plate 6 is a wire mesh plate. The pressing plate adopts a wire mesh plate design, which can not only provide uniform support force to ensure the stability of the carbon molecular sieve cylinder during operation, but also achieve uniform compression of the carbon molecular sieve through its mesh structure. This uniform compression helps to maintain the close arrangement of the carbon molecular sieve particles, improve its adsorption efficiency and stability, ensure gas flowability, and also have a certain structural strength and stability. The wire mesh plate can withstand a certain pressure and vibration, ensuring that it is not easily deformed or damaged during long-term operation, thereby extending the service life of the equipment.

[0052] See also Figure 1A feed port is provided on the surface of the cylinder 1, and the feed port is connected to the carbon molecular sieve cylinder for convenient feeding.

[0053] The implementation principle of the utility model is as follows: first, the cylinder 1 is installed, and then the carbon molecular sieve is put in through the feed port on the surface of the cylinder 1, and the carbon molecular sieve will enter the carbon molecular sieve cylinder 5. As the carbon molecular particles increase, the staff starts the cylinder 4, and the cylinder 4 extends the telescopic rod 41, thereby squeezing the carbon molecular sieve to make it gradually compacted. Then the user connects the air source to the air inlet nozzle 81, and injects the treated air into the cylinder. After that, the air enters the carbon molecular sieve cylinder 5. Under a certain pressure, nitrogen is produced from the air, and the nitrogen is discharged and stored through the exhaust hole 21. When more nitrogen is needed, the nitrogen is discharged and stored. When replacing the carbon molecular sieve, the staff opens the plate valve 91 and the motor 3. The motor 3 drives the stirring shaft 7 to rotate, and the stirring shaft 7 drives the fins 71 to rotate, squeezing the carbon molecular particles and discharging them through the discharge pipe 9. At the same time, under the action of the stirring rod 72, the force balance of the carbon molecular particles on the side is broken. Under the action of gravity, the carbon molecular particles are discharged through the discharge pipe 9, and new materials are added through the feed port again. When the nitrogen adsorption cylinder needs to be inspected and repaired, the staff can disassemble the cover plate by bolts. After removing the cover plate 2, the carbon molecular sieve cylinder 5 can be lifted out for inspection and repair.

[0054] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A nitrogen adsorption cylinder that is easy to assemble, characterized in that: It comprises a cylinder (1) and a carbon molecular sieve cylinder (5). A stirring shaft (7), wherein the outer surface of the stirring shaft (7) is provided with fins (71), the fins (71) are spiral fins, stirring rods (72) are arranged in a staggered manner at intervals between the spiral fins, and a second flange (73) for connection is installed on the top of the stirring shaft (7); A gas distribution plate (8), the gas distribution plate (8) is located below the carbon molecular sieve cylinder (5), and a downwardly inclined gas inlet nozzle (81) is installed on one side of the gas distribution plate (8), and the gas inlet nozzle (81) penetrates the cylinder (1) and extends to the outside thereof.

2. The nitrogen adsorption cylinder that is easy to assemble according to claim 1 is characterized in that: A detachable cover plate (2) is provided on the top of the cylinder (1), a bolt hole is provided on the bottom of the cover plate (2), a first flange (11) is installed on the outer side of the top of the cylinder (1), and the first flange (11) is connected to the cover plate (2) by bolts (14).

3. The nitrogen adsorption cylinder that is easy to assemble according to claim 2 is characterized in that: A motor (3) is installed on the top of the cover plate (2), the output end of the motor (3) is connected to a drive shaft (31) that passes through the cover plate (2), cylinders (4) are installed on both sides of the motor (3), the output end of the cylinder (4) is connected to a telescopic rod (41) that passes through the cover plate (2), and the end of the telescopic rod (41) is connected to a pressing plate (6).

4. The nitrogen adsorption cylinder that is easy to assemble according to claim 3 is characterized in that: A clamping ring is fixed to the inner wall of the cylinder (1), the top of the carbon molecular sieve cylinder (5) is placed on the clamping ring by gravity, the pressure plate (6) is located above the carbon molecular sieve cylinder (5), and a discharge pipe (9) is installed at the bottom of the carbon molecular sieve cylinder (5), and a plate valve (91) is installed on the discharge pipe (9).

5. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 3 is characterized in that: A bearing (61) is installed at the center of the pressure plate (6), and the bearing (61) is used to maintain the stability of the stirring shaft (7).

6. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 5 is characterized in that: The bottom end of the driving shaft (31) is fixedly connected to the stirring shaft (7) via a second flange (73); the stirring shaft (7) passes through the bearing (61); and the second flange (73) is located above the bearing (61).

7. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 1 is characterized in that: The gas distribution plate (8) is funnel-shaped, the diameter of the bottom center of the gas distribution plate (8) is larger than the diameter of the discharge pipe (9), and a plurality of uniform pores are formed on the gas distribution plate (8), and the pores penetrate the bottom of the carbon molecular sieve cylinder (5).

8. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 1 is characterized in that: The bottom of the cylinder (1) is funnel-shaped, the bottom shape of the carbon molecular sieve cylinder (5) is compatible with the cylinder (1), and the bottom of the cylinder (1) is fixed with support legs (13) arranged in a ring array.

9. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 1 is characterized in that: An operating panel (12) is installed on the outer surface of the cylinder (1), and the operating panel (12) is electrically connected to the motor (3) and the cylinder (4).

10. The nitrogen-generating adsorption cylinder that is easy to assemble according to claim 3 is characterized in that: The top of the cover plate (2) is provided with vertically arranged exhaust holes (21), and the pressing plate (6) is a wire mesh plate.

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