PSA (Pressure Swing Adsorption) nitrogen production and recovery energy-saving device

Abstract

The utility model discloses a PSA nitrogen-making recovery energy-saving device, which comprises a gas storage barrel, a mounting plate, a fixed sleeve shell and a connecting plate, the mounting plate is mounted inside the gas storage barrel, a motor is mounted at the bottom of the mounting plate, the fixed sleeve shell is mounted at one end of the gas storage barrel, the connecting plate is mounted inside the fixed sleeve shell, and the motor is mounted at the bottom of the mounting plate. A filter element is installed at the end, close to the air storage barrel, of the connecting plate, a pulling plate is installed at the end, away from the filter element, of the connecting plate, a set of fixing clamping grooves are symmetrically formed in the outer side of the fixing sleeve shell, and an inserting opening is formed in the end, close to the fixing sleeve shell, of the air storage barrel. The split-flow bin and the split-flow pipe are installed, tail gas can be split through the split-flow pipe after entering the split-flow bin, the flow speed of airflow can be slowed down, the impact force of the tail gas on the filter element can be reduced, the tail gas can be dispersed to different positions of the filter element to be filtered, and dust is prevented from locally blocking the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of PSA nitrogen making equipment, in particular to a PSA nitrogen making recovery and energy-saving device. Background Art

[0002] During the operation of the PSA nitrogen production unit process, a large amount of tail gas is discharged and depressurized by periodically switching the valve status. The tail gas can be recovered through the energy-saving device, and many product components in the tail gas can be recovered and used again.

[0003] For example, the utility model: "A PSA nitrogen production and exhaust oxygen-rich gas recovery device", with the announcement number: "CN217698571U", enables the device to ensure gas filtration through the connection of two filter tubes and the setting of the solenoid valve. The setting of the disassembly mechanism can facilitate the replacement of the filter element inside the filter tube, so that the filter tube can filter the gas and ensure the filtration of the filter tube. However, during the implementation of the patent, the exhaust gas directly enters the filter tube. Since the installation position of the solenoid valve is fixed, the exhaust gas is easy to blow directly to the fixed position of the filter element, and it is not easy to divert the exhaust gas to different positions of the filter element, which can easily cause the filter element to be partially blocked by dust, thereby affecting the recovery process. Utility Model Content

[0004] The purpose of the utility model is to provide a PSA nitrogen production recovery energy-saving device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PSA nitrogen recovery and energy-saving device, comprising a gas storage barrel, a mounting plate, a fixed casing and a connecting plate, wherein a mounting plate is installed inside the gas storage barrel, and a motor is installed at the bottom of the mounting plate, a fixed casing is installed at one end of the gas storage barrel, and a connecting plate is installed inside the fixed casing, a filter element is installed at one end of the connecting plate close to the gas storage barrel, and a pull plate is installed at one end of the connecting plate away from the filter element, a group of fixed slots are symmetrically arranged on the outside of the fixed casing, a socket is arranged at one end of the gas storage barrel close to the fixed casing, and a solenoid valve is installed on the top of the gas storage barrel, a shunt bin is installed on the top of the gas storage barrel, and a control panel is installed on the top of the end of the gas storage barrel away from the fixed casing, the output end of the control panel is electrically connected to the input end of the motor and the solenoid valve respectively through a wire, and an air outlet pipe is installed at the bottom of the end of the gas storage barrel away from the fixed casing.

[0006] Preferably, diversion pipes are evenly installed at the bottom of the diversion bin.

[0007] Preferably, an air inlet pipe is installed at the input end of the solenoid valve, and an air guide pipe extending to the inside of the diversion chamber is installed at the output end of the solenoid valve.

[0008] Preferably, a mounting block is installed at one end of the gas storage barrel away from the fixed casing, and a slot is provided at one end of the mounting block close to the fixed casing.

[0009] Preferably, a rotating shaft is installed at the output end of the motor, the rotating shaft passes through the mounting plate, and fan blades are evenly installed on the outer side of the rotating shaft.

[0010] Preferably, air guide holes are evenly arranged inside the mounting plate.

[0011] Preferably, a group of mounting grooves are symmetrically arranged on the outer side of the connecting plate, and fixing springs are installed inside the mounting grooves, and a fixing block is installed at one end of the fixing spring away from the connecting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The PSA nitrogen recovery and energy-saving device is equipped with a diversion chamber and a diversion pipe. After the tail gas enters the diversion chamber, it can be diverted through the diversion pipe, which can not only slow down the air flow rate and reduce the impact of the tail gas on the filter element, but also disperse the tail gas to different positions of the filter element for filtration, avoiding dust from partially clogging the filter element;

[0014] 2. The PSA nitrogen recovery and energy-saving device is equipped with a fixed casing, a connecting plate, a fixed spring and a fixed card block. The filter element can be fixed inside the gas storage barrel by inserting the fixed card block into the fixed card slot. The filter element can be quickly taken out from the gas storage barrel by pressing the fixed card block out from the fixed card slot, so that the filter element can be easily cleaned;

[0015] 3. The PSA nitrogen production and recovery energy-saving device is equipped with a motor, a mounting plate, fan blades and a rotating shaft. During use, the motor drives the fan blades to rotate through the rotating shaft, and the fan blades cut the air to generate airflow, which can generate suction force at the mouth of the intake pipe, thereby facilitating the recovery of exhaust gas into the air storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front cross-sectional view of the utility model;

[0017] Figure 2 This is a schematic diagram of the diversion bin of the utility model;

[0018] Figure 3 For this utility model Figure 1 A magnified view of the structure in Figure 2.

[0019] In the figure: 1. air storage tank; 2. air outlet pipe; 3. motor; 4. mounting plate; 5. fan blades; 6. rotating shaft; 7. mounting block; 8. slot; 9. control panel; 10. diversion chamber; 11. solenoid valve; 12. air inlet pipe; 13. air guide pipe; 14. diversion pipe; 15. fixed shell; 16. socket; 17. pull plate; 18. air guide hole; 19. connecting plate; 20. fixed spring; 21. mounting slot; 22. fixed block; 23. fixed slot; 24. filter element. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3The utility model provides an embodiment: a PSA nitrogen recovery energy-saving device, comprising a gas storage barrel 1, a mounting plate 4, a fixed casing 15 and a connecting plate 19, the gas storage barrel 1 is installed with a mounting plate 4, and a motor 3 is installed at the bottom of the mounting plate 4, where the motor 3 model can be Y90S-2, the mounting plate 4 is evenly provided with air guide holes 18, and the exhaust gas can pass through the mounting plate 4 through the air guide holes 18, and one end of the gas storage barrel 1 is installed with a fixed casing 15, and the fixed casing 15 is installed with a connecting plate 19. The connecting plate 19 is provided with a filter element 24 at one end of the connecting plate 19 close to the gas storage barrel 1, and a pull plate 17 is provided at one end of the connecting plate 19 away from the filter element 24. A group of fixed card slots 23 are symmetrically arranged on the outer side of the fixed casing 15. A socket 16 is provided at one end of the gas storage barrel 1 close to the fixed casing 15, and a solenoid valve 11 is installed on the top of the gas storage barrel 1. The model of the solenoid valve 11 here can be HYZF2-15. A shunt bin 10 is installed on the top of the gas storage barrel 1, and the top of the gas storage barrel 1 away from the fixed casing 15 is provided with a plug 16. A control panel 9 is installed, an air intake pipe 12 is installed at the input end of the solenoid valve 11, and an air guide pipe 13 extending to the inside of the diversion bin 10 is installed at the output end of the solenoid valve 11. When the solenoid valve 11 is opened, the exhaust gas can enter the inside of the diversion bin 10 through the air intake pipe 12 and the air guide pipe 13. The bottom of the diversion bin 10 is evenly installed with a diversion pipe 14. After the exhaust gas enters the inside of the diversion bin 10, it can be diverted through the diversion pipe 14, which can not only slow down the air flow velocity and reduce the impact of the exhaust gas on the filter element 24, but also disperse the exhaust gas. The air is filtered at different positions of the filter element 24 to prevent dust from partially clogging the filter element 24. The output end of the control panel 9 is electrically connected to the input ends of the motor 3 and the solenoid valve 11 through wires. An air outlet pipe 2 is installed at the bottom of the air storage barrel 1 away from the fixed casing 15. A mounting block 7 is installed at the end of the air storage barrel 1 away from the fixed casing 15, and a slot 8 is provided at the end of the mounting block 7 close to the fixed casing 15. The filter element 24 can be inserted into the slot 8, so that the filter element 24 can be installed inside the air storage barrel 1 conveniently.

[0022] like Figure 1 As shown, a rotating shaft 6 is installed at the output end of the motor 3, the rotating shaft 6 passes through the mounting plate 4, and fan blades 5 are evenly installed on the outer side of the rotating shaft 6. During use, the motor 3 drives the fan blades 5 to rotate through the rotating shaft 6, and the fan blades 5 cut the air to generate airflow, which can generate suction force at the pipe mouth position of the intake pipe 12, thereby facilitating the recovery of exhaust gas into the air storage barrel 1.

[0023] like Figure 1-3As shown, a group of mounting grooves 21 are symmetrically arranged on the outer side of the connecting plate 19, and fixing springs 20 are installed inside the mounting grooves 21. A fixing block 22 is installed at one end of the fixing spring 20 away from the connecting plate 19. By inserting the fixing block 22 into the fixing groove 23, the filter element 24 can be fixed inside the gas storage barrel 1. By pressing the fixing block 22 out of the fixing groove 23, the filter element 24 can be quickly taken out from the gas storage barrel 1, thereby facilitating the cleaning of the filter element 24.

[0024] Working principle:

[0025] When in use, the device is powered on, and the staff inserts the filter element 24 into the gas storage barrel 1 through the socket 16, and inserts the filter element 24 into the slot 8;

[0026] When the fixed block 22 on the connecting plate 19 moves to a position facing the fixed slot 23, the elastic action of the fixing spring 20 pushes the fixed block 22 to move, and the fixed block 22 can be inserted into the fixed slot 23. The fixed block 22 limits the connecting plate 19, and the connecting plate 19 can be prevented from moving further, so that the filter element 24 can be installed on the gas storage barrel 1.

[0027] When the tail gas generated in the PSA nitrogen production process is recovered, the staff can open the solenoid valve 11 through the control panel 9, and start the motor 3 through the control panel 9. The motor 3 drives the fan blades 5 to rotate through the rotating shaft 6. The fan blades 5 cut the air to generate airflow, which can generate suction force at the pipe opening of the air inlet pipe 12, so as to facilitate the recovery of the tail gas into the gas storage barrel 1.

[0028] After the exhaust gas enters the diversion chamber 10, it can be diverted through the diversion pipe 14, which can not only slow down the air flow rate and reduce the impact of the exhaust gas on the filter element 24, but also disperse the exhaust gas to different positions of the filter element 24 for filtration, thereby preventing the filter element 24 from being partially blocked by dust. The filtered exhaust gas passes through the mounting plate 4 through the air guide hole 18 and can be discharged from the inside of the gas storage barrel 1 through the air outlet pipe 2;

[0029] When the filter element 24 needs to be cleaned, the staff can press the fixed block 22 to push the fixed block 22 out of the fixed slot 23, so as to release the limit of the fixed block 22 on the connecting plate 19, so that the connecting plate 19 can move;

[0030] Then the staff can pull the connecting plate 19 through the pulling plate 17, and the connecting plate 19 drives the filter element 24 to move together, so that the filter element 24 can be taken out from the inside of the gas storage barrel 1, and the gas storage barrel 1 can be cleaned.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A PSA nitrogen production and recovery energy-saving device, comprising a gas storage tank (1), a mounting plate (4), a fixed casing (15) and a connecting plate (19), characterized in that: The gas storage barrel (1) is provided with a mounting plate (4) installed inside, and a motor (3) is installed at the bottom of the mounting plate (4); a fixed casing (15) is installed at one end of the gas storage barrel (1), and a connecting plate (19) is installed inside the fixed casing (15); a filter element (24) is installed at one end of the connecting plate (19) close to the gas storage barrel (1), and a pull plate (17) is installed at one end of the connecting plate (19) away from the filter element (24); a group of fixed slots (23) are symmetrically arranged on the outer side of the fixed casing (15); and the gas storage barrel (1) is provided with a plurality of fixed slots (23) on the outer side of the fixed casing (15). (1) A socket (16) is provided at one end close to the fixed casing (15), and a solenoid valve (11) is installed at the top of the gas storage barrel (1), a diversion chamber (10) is installed at the top of the gas storage barrel (1), and a control panel (9) is installed at the top of the end of the gas storage barrel (1) away from the fixed casing (15), the output end of the control panel (9) is electrically connected to the motor (3) and the input end of the solenoid valve (11) through wires, and an air outlet pipe (2) is installed at the bottom of the end of the gas storage barrel (1) away from the fixed casing (15).

2. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: The bottom of the diversion chamber (10) is evenly equipped with diversion pipes (14).

3. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: An air inlet pipe (12) is installed at the input end of the solenoid valve (11), and an air guide pipe (13) extending to the interior of the diversion chamber (10) is installed at the output end of the solenoid valve (11).

4. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: A mounting block (7) is installed at one end of the gas storage barrel (1) away from the fixed casing (15), and a slot (8) is provided at one end of the mounting block (7) close to the fixed casing (15).

5. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: A rotating shaft (6) is installed at the output end of the motor (3), the rotating shaft (6) passes through the mounting plate (4), and fan blades (5) are evenly installed on the outer side of the rotating shaft (6).

6. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: The interior of the mounting plate (4) is evenly provided with air guide holes (18).

7. A PSA nitrogen production and recovery energy-saving device according to claim 1, characterized in that: A group of mounting grooves (21) are symmetrically arranged on the outer side of the connecting plate (19), and fixing springs (20) are installed inside the mounting grooves (21). A fixing block (22) is installed at one end of the fixing spring (20) away from the connecting plate (19).

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