Pressure swing adsorption nitrogen generation device

Abstract

The utility model relates to the technical field of nitrogen generation, in particular to a pressure swing adsorption nitrogen generation device which comprises a base, an adsorption box is fixedly mounted at the top end of one side of the base, a treatment box is fixedly mounted at the top end of the other side of the base, and a molecular sieve is arranged in the middle of the inner side of the adsorption box. The partition plate, the movable plate, the filter plate, the penetrating groove, the first spring and the movable seal are used in cooperation, the movable plate and the top end of the treatment box are unlocked, at the moment, the first spring with the bottom end in a compressed state can jack the movable seal, the movable seal synchronously jacks out a part of the movable plate, then the movable plate is lifted up, and the movable plate is separated from the top end of the treatment box. At the moment, the jacking movable seal blocks the upper penetrating groove, air cannot penetrate through the upper penetrating groove to enter the upper portion of the interior of the partition plate, sealing can be conducted synchronously during replacement, gas can also penetrate through the lower penetrating groove, gas conveying cannot be affected, and therefore the purpose of non-stop maintenance can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen production, in particular to a pressure swing adsorption nitrogen production device. Background Art

[0002] Pressure swing adsorption nitrogen production is a common gas separation technology used to extract high-purity nitrogen from the air. It is based on the difference in adsorption properties of molecules under different pressures and uses the selective adsorption of gas molecules by adsorbents to achieve gas separation.

[0003] For example, a pressure swing adsorption nitrogen production device disclosed in the authorization announcement number CN210495804U has a nitrogen production tank, a pressurized tank is provided in the nitrogen production tank, a carbon molecular sieve is provided in the pressurized tank, an air collection pipe is connected to the upper end of the pressurized tank, the upper end of the air collection pipe runs through the upper end of the nitrogen production tank, the right end of the air collection pipe is connected to the air collection tank, a support platform is fixedly installed on the lower side of the left end of the nitrogen production tank, and an exhaust fan is fixedly installed on the support platform. After adopting the above technical solution, the beneficial effect of the utility model is that it can increase the filtering effect of the filter barrel, so that nitrogen with higher purity can be produced.

[0004] Although the above patent can increase the filtering effect of the filter barrel, the filter assembly cannot be disassembled and cleaned during the nitrogen production process because the slot where the filter assembly is installed will leak after disassembly. Therefore, it is necessary to design a pressure swing adsorption nitrogen production device. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure swing adsorption nitrogen production device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pressure swing adsorption nitrogen production device, comprising

[0008] A base, an adsorption box is fixedly installed on the top of one side of the base, a treatment box is fixedly installed on the top of the other side of the base, and a molecular sieve is arranged in the middle of the inner side of the adsorption box;

[0009] A machine box is fixedly installed on one side of the processing box close to the adsorption box, a compression pump is arranged inside the machine box, and two ends of the compression pump are respectively connected to the adsorption box and the processing box;

[0010] A plurality of filtering mechanisms are arranged side by side inside the processing box, clamping mechanisms are arranged on both sides of the upper end inside the processing box, and a pressure regulating mechanism is arranged between the chassis and the adsorption box.

[0011] Preferably, the filtering mechanism comprises a partition, the partition is arranged side by side inside the processing box, a movable plate is movably installed inside the partition, a filter plate is arranged inside the movable plate, and two through grooves are sequentially opened below the bottom end of the partition;

[0012] Preferably, the filtering mechanism further comprises a spring 1, the spring 1 is arranged at the lower part of the inner part of the partition, a movable seal is fixedly mounted on the top of the spring 1, and the movable seal is movably connected to the lower part of the bottom end of the movable plate;

[0013] Preferably, the clamping mechanism includes a card slot, the card slots are provided on both sides of the top of the processing box close to the movable plate, a movable slot is provided on the inner side of the top of the movable plate, a screw is movably installed in the middle of the movable slot, the external thread of the screw is connected with a pressure block, diamond blocks are transversely arranged on both sides of the movable slot, one end of the diamond block is clamped with the card slot, the other end of the diamond block is movably connected with the outer wall of the pressure block, and a knob is fixedly installed on the top of the screw;

[0014] Preferably, the processing box is provided with a fixed seal at the inner wall of the upper end of the partition, and the fixed seal is movably sleeved with the movable plate;

[0015] Preferably, the pressure regulating mechanism includes a top shell, which is fixedly installed on the outside of the left top end of the adsorption box, and a PLC controller is arranged inside the top shell. An outer shell is fixedly installed on the top of the chassis, and a pressure regulator is arranged inside the outer shell. The top end of the adsorption box on one side close to the processing box is connected to a pressure sensor, the right top end of the adsorption box is connected to an exhaust port, and the left side of the processing box is connected to an air inlet. The PLC controller, pressure regulator and pressure sensor are electrically connected.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The pressure swing adsorption nitrogen making device is used in coordination with a partition, a movable plate, a filter plate, a through groove, a spring and a movable seal to unlock the movable plate from the top of the processing box. At this time, the spring with the bottom end in a compressed state will lift the movable seal, and the movable seal will simultaneously push out a part of the movable plate, and then lift the movable plate. At this time, the lifted movable seal will block the through groove above, so that air cannot pass through the through groove above and enter the upper part of the interior of the partition. Therefore, the seal can be synchronized during replacement, and the gas can also pass through the through groove below, which will not affect the gas transmission, so the purpose of non-stop maintenance can be achieved.

[0018] The pressure swing adsorption nitrogen making device is used in coordination among a card slot, a diamond block, a screw rod and a pressure block. When removing a movable plate, the knob is twisted, and the knob drives the screw rod to rotate, and the screw rod controls the pressure block to rise. After the pressure block rises, two springs in a compressed state control the diamond block to be retracted into the movable slot, and at the same time, the other end of the diamond block is withdrawn from the card slot, and then the movable plate is lifted up for quick disassembly, thereby achieving the purpose of facilitating quick disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0022] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0023] In the figure: 1. base; 2. adsorption box; 3. treatment box; 4. chassis; 5. partition; 6. movable plate; 7. filter plate; 8. through slot; 9. spring one; 10. movable seal; 11. slot; 12. movable slot; 13. screw; 14. pressure block; 15. diamond block; 16. knob; 17. fixed seal; 18. top shell; 19. PLC controller; 20. outer shell; 21. pressure regulator; 22. pressure sensor; 23. exhaust port; 24. air inlet; 25. compression pump; 26. spring two. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0026] A pressure swing adsorption nitrogen making device comprises a base 1, an adsorption box 2 is fixedly mounted on the top of one side of the base 1, a treatment box 3 is fixedly mounted on the top of the other side of the base 1, and a molecular sieve is arranged in the middle of the inner side of the adsorption box 2; a machine box 4 is fixedly mounted on the side of the treatment box 3 close to the adsorption box 2, a compression pump 25 is arranged inside the machine box 4, and the two ends of the compression pump 25 are respectively connected to the adsorption box 2 and the treatment box 3, a pressure regulating mechanism is arranged between the machine box 4 and the adsorption box 2, and the pressure regulating mechanism comprises a top shell 18, the top shell 18 is fixedly mounted on the outside of the left top of the adsorption box 2, a PLC controller 19 is arranged inside the top shell 18, a shell 20 is fixedly mounted on the top of the machine box 4, a pressure regulator 21 is arranged inside the shell 20, a pressure sensor 22 is connected to the outside of the top of one side of the adsorption box 2 close to the treatment box 3, an exhaust port 23 is connected to the top of the right side of the adsorption box 2, an air inlet 24 is connected to the outside of the left side of the treatment box 3, and the PLC controller 19, the pressure regulator 21 and the pressure sensor 22 are electrically connected;

[0027] In this embodiment, when nitrogen is produced, the pressure inside the adsorption box 2 can be monitored in real time by the pressure sensor 22, and then the pressure regulator 21 is controlled by the PLC controller 19 according to the pressure change. The pressure regulator 21 controls the compression pump 25 to adjust the power, thereby controlling the pressure inside the adsorption box 2.

[0028] like Figure 2 and Figure 4 As shown, a plurality of filtering mechanisms are arranged side by side inside the processing box 3, and the filtering mechanism includes a partition 5, which is arranged side by side inside the processing box 3, and a movable plate 6 is movably installed inside the partition 5, and a filter plate 7 is arranged inside the movable plate 6, and two through grooves 8 are sequentially opened below the bottom end of the partition 5. The filtering mechanism also includes a spring 9, which is arranged below the inside of the partition 5, and a movable seal 10 is fixedly installed on the top of the spring 9, and the movable seal 10 is movably connected to the bottom end of the movable plate 6. A fixed seal 17 is arranged on the inner wall of the upper end of the partition 5 of the processing box 3, and the fixed seal 17 is movably sleeved with the movable plate 6;

[0029] In this embodiment, when nitrogen is produced, the mixed gas enters the processing box 3 from the air inlet 24, and is filtered and processed by the filter plates 7 inside the several partitions 5 in turn. In the process of producing nitrogen, if the filter plate 7 needs to be taken out for replacement or cleaning, the movable plate 6 is unlocked from the top of the processing box 3. At this time, the spring 9 at the bottom end which is in a compressed state will lift the movable seal 10, and the movable seal 10 will simultaneously push out a part of the movable plate 6, and then lift the movable plate 6. At this time, the lifted movable seal 10 will block the upper through-slot 8, so that the air cannot pass through the upper through-slot 8 and enter the upper part of the interior of the partition 5, so it can be sealed synchronously during replacement, and the gas can also pass through the lower through-slot 8, which will not affect the gas transportation, so the purpose of non-stop maintenance can be achieved.

[0030] like Figure 3 As shown, clamping mechanisms are provided on both sides of the inner upper end of the processing box 3, and the clamping mechanisms include a card slot 11. Card slots 11 are provided on both sides of the top of the processing box 3 near the movable plate 6, and a movable slot 12 is provided on the inner side of the top of the movable plate 6. A screw rod 13 is movably installed in the middle of the movable slot 12, and a pressure block 14 is connected to the external thread of the screw rod 13. Diamond blocks 15 are transversely provided on both sides of the movable slot 12, and springs 26 are provided at the upper ends of the diamond blocks 15 and the movable slot 12. One end of the diamond block 15 is clamped with the card slot 11, and the other end of the diamond block 15 is movably connected to the outer wall of the pressure block 14, and a knob 16 is fixedly installed on the top of the screw rod 13;

[0031] In this embodiment, when removing the movable plate 6, the knob 16 is twisted, and the knob 16 drives the screw 13 to rotate, and the screw 13 controls the pressure block 14 to rise. After the pressure block 14 rises, the two compressed springs 26 will control the diamond block 15 to be retracted into the movable groove 12, and at the same time, the other end of the diamond block 15 is withdrawn from the slot 11, and then the movable plate 6 can be quickly removed by lifting it, thereby achieving the purpose of facilitating quick disassembly and assembly.

[0032] Working principle: When making nitrogen, the mixed gas enters the processing box 3 from the air inlet 24, and is filtered and processed by the filter plates 7 inside the partitions 5 in turn. During the process of making nitrogen, if the filter plate 7 needs to be removed for replacement or cleaning, the movable plate 6 is unlocked from the top of the processing box 3. When removing the movable plate 6, the knob 16 is twisted, and the knob 16 drives the screw 13 to rotate. The screw 13 controls the pressure block 14 to rise. After the pressure block 14 rises, the two compressed springs 26 control the diamond block 15 to move toward the movable groove 1. 2 is retracted inside, and the other end of the diamond block 15 is withdrawn from the card slot 11, and then the movable plate 6 is lifted up for quick disassembly. At this time, the spring 9 in the compressed state at the bottom will lift the movable seal 10, and the movable seal 10 will simultaneously push out a part of the movable plate 6, and then the movable plate 6 is lifted up. At this time, the lifted movable seal 10 will block the upper through-slot 8, so that air cannot pass through the upper through-slot 8 and enter the upper part of the interior of the partition 5, so it can be sealed synchronously during replacement, and gas can also pass through the lower through-slot 8.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure swing adsorption nitrogen production device, characterized in that: include A base (1), an adsorption box (2) being fixedly mounted on the top of one side of the base (1), a treatment box (3) being fixedly mounted on the top of the other side of the base (1), and a molecular sieve being arranged in the middle of the inner side of the adsorption box (2); A machine box (4) is fixedly mounted on one side of the processing box (3) close to the adsorption box (2), a compression pump (25) is arranged inside the machine box (4), and two ends of the compression pump (25) are respectively connected to the adsorption box (2) and the processing box (3); A plurality of filtering mechanisms are arranged side by side inside the processing box (3), clamping mechanisms are arranged on both sides of the upper end of the processing box (3), and a pressure regulating mechanism is arranged between the machine box (4) and the adsorption box (2).

2. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: The filtering mechanism comprises a partition (5), the partition (5) being arranged side by side inside the processing box (3), a movable plate (6) being movably installed inside the partition (5), a filter plate (7) being arranged inside the movable plate (6), and two through grooves (8) being sequentially provided below the bottom end of the partition (5).

3. A pressure swing adsorption nitrogen production device according to claim 2, characterized in that: The filtering mechanism further comprises a spring 1 (9), wherein the spring 1 (9) is arranged at the lower part of the interior of the partition plate (5), and a movable seal (10) is fixedly mounted on the top end of the spring 1 (9), and the movable seal (10) is movably connected to the lower part of the bottom end of the movable plate (6).

4. A pressure swing adsorption nitrogen production device according to claim 2, characterized in that: The clamping mechanism comprises a slot (11), the slots (11) are provided on both sides of the top of the processing box (3) close to the movable plate (6), a movable slot (12) is provided on the inner side of the top of the movable plate (6), a screw rod (13) is movably installed in the middle of the movable slot (12), the external thread of the screw rod (13) is connected to a pressure block (14), rhombus blocks (15) are transversely arranged on both sides of the movable slot (12), a spring 2 (26) is arranged at the upper end of the rhombus block (15) and the movable slot (12), one end of the rhombus block (15) is clamped with the slot (11), and the other end of the rhombus block (15) is movably connected to the outer wall of the pressure block (14), and a knob (16) is fixedly installed on the top of the screw rod (13).

5. A pressure swing adsorption nitrogen production device according to claim 2, characterized in that: The processing box (3) is provided with a fixed seal (17) on the inner wall of the upper end of the partition (5), and the fixed seal (17) is movably sleeved with the movable plate (6).

6. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: The pressure regulating mechanism comprises a top shell (18), the top shell (18) is fixedly mounted on the outside of the left top end of the adsorption box (2), a PLC controller (19) is arranged inside the top shell (18), an outer shell (20) is fixedly mounted on the top end of the chassis (4), a pressure regulator (21) is arranged inside the outer shell (20), a pressure sensor (22) is connected to the outside of the top end of the adsorption box (2) close to the processing box (3), an exhaust port (23) is connected to the top end of the right side of the adsorption box (2), an air inlet (24) is connected to the outside of the left side of the processing box (3), and the PLC controller (19), the pressure regulator (21) and the pressure sensor (22) are electrically connected.

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