PSA energy-saving nitrogen generator

By sealing the nitrogen generator in a sealed enclosure and using pressure changes to monitor for leaks, an alarm circuit is established, solving the problem of undetectable leaks in PSA nitrogen generators and improving safety.

CN224331836UActive Publication Date: 2026-06-09江苏轻跃气体科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏轻跃气体科技有限公司
Filing Date
2025-07-03
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

PSA nitrogen generators are prone to leaks due to frequent pressure changes, and nitrogen leaks are not easily detected, posing a risk of suffocation, especially when the leak is small.

Method used

The nitrogen generator is sealed in a sealed enclosure, and leaks are monitored by changes in air pressure. A circuit consisting of a piston, bracket, slide rod, and conductor rod is used to trigger a buzzer to detect leaks.

Benefits of technology

It enables timely detection and alarm of nitrogen leaks, reducing the risk of suffocation and improving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of nitrogen generator technology, specifically a PSA energy-saving nitrogen generator, including a base, a nitrogen generator body mounted on the base, a sealing cover fixedly connected to the base, a top seat at the top of the sealing cover, a control device connected to the base, and an electrical connection between the control device and the nitrogen generator body. It also includes a detection component and a drive component. The detection component includes a tank, a piston, a power supply, a buzzer, and wires. The tank is fixedly connected to the sealing cover, the piston is slidably connected to the inside of the tank, the power supply and buzzer are fixedly connected to the inner wall of the tank, and a wire is provided between the power supply and the buzzer. The drive component includes a bracket and a conductor rod. The bracket is fixedly connected to the piston, and the conductor rod is mounted on the bracket, cooperating with the wires. This utility model can seal the nitrogen generator in the sealing cover, allowing control and monitoring of the nitrogen generator's operation from outside the sealing cover, while the container can continuously monitor for nitrogen leakage.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, specifically a PSA energy-saving nitrogen generator. Background Technology

[0002] PSA energy-saving nitrogen generators are nitrogen generation equipment that mainly utilizes pressure swing adsorption technology. Its core principle is to achieve gas separation by selectively adsorbing oxygen through carbon molecular sieves and combining it with periodic pressure changes. At the same time, through system design optimization and integration of energy-saving technologies, the energy consumption per unit of nitrogen production is significantly reduced, thereby achieving energy saving.

[0003] However, because PSA technology requires frequent pressure changes, the pipes in various parts of the nitrogen generator are constantly subjected to different internal gas pressures. Therefore, compared with nitrogen generators based on other principles, PSA nitrogen generators are more prone to leakage due to frequent pressure changes. Moreover, since nitrogen is colorless and odorless, leaks are not easily detected, especially when the leakage is small. Even with electronic monitoring, there may be cases where minute leaks go undetected. Nitrogen leaks can lead to a decrease in local oxygen concentration, causing a risk of asphyxiation. Therefore, a new type of nitrogen generator is needed to solve this problem. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a PSA energy-saving nitrogen generator that can seal the nitrogen generator in a sealed enclosure. The operation of the nitrogen generator can be controlled and monitored outside the sealed enclosure, while the presence of nitrogen leakage can be monitored at any time inside the container.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a PSA energy-saving nitrogen generator, including a base, a nitrogen generator body mounted on the base, a sealing cover fixedly connected to the base, a top seat mounted on the top of the sealing cover, a control device connected to the base, and the control device electrically connected to the nitrogen generator body, and further including...

[0006] The detection assembly includes a tank, a piston, a power supply, a buzzer, and wires. The tank is fixedly connected to a sealing cover, the piston is slidably connected to the inside of the tank, the power supply and the buzzer are fixedly connected to the inner wall of the tank, and the wires are provided between the power supply and the buzzer.

[0007] A drive assembly, comprising a bracket and a conductor rod, wherein the bracket is fixedly connected to the piston, and the conductor rod is disposed on the bracket and cooperates with a wire.

[0008] Preferably, the detection component further includes grippers, and both ends of the wire are fixedly connected to grippers, which cooperate with the conductor rod.

[0009] Preferably, the drive assembly further includes a slide rod, which is slidably connected to the bracket, and the conductor rod is fixedly connected to the slide rod.

[0010] Preferably, the drive assembly further includes a spring, one end of which is fixedly connected to the inside of the bracket, and the other end of which is fixedly connected to the slide rod.

[0011] Preferably, there are two of each of the bracket, slide bar, and gripper, and the two ends of the conductor rod are fixedly connected to the two slide bars respectively.

[0012] Preferably, the slide bar is made of insulating material, and the distance between the two grippers is less than the length of the conductor rod.

[0013] Preferably, both ends of the sealing cover are fixedly connected to air pipes, and the two air pipes are connected to the air inlet and air outlet of the nitrogen generator body.

[0014] Compared with the prior art, the significant advantages of this utility model are:

[0015] Firstly, in this utility model, since the entire nitrogen generator body is located inside the sealed cover, the intake and exhaust of the nitrogen generator body can be controlled by two gas pipes. When the nitrogen generator body is working, if nitrogen leakage occurs, the nitrogen will be sealed inside the sealed cover. Since there is gas inside the sealed cover, the leaked nitrogen will cause the gas pressure inside the sealed cover to increase. The increased gas pressure will cause the piston inside the tank to move.

[0016] Secondly, in this utility model, when the air pressure inside the sealing cover increases, causing the piston to move, it will drive the two supports, the slide rod, and the conductor rod to move. As the conductor rod moves, it will eventually block the two grippers. At this time, the grippers, wires, conductor rod, power supply, and buzzer constitute a complete circuit. Therefore, the power supply provides electrical energy, which causes the buzzer to start and make a sound to remind that there is a leak inside the sealing cover. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sealing cover in this utility model;

[0020] Figure 3 This is a cross-sectional view of the connection structure of the base, top seat, and sealing cover in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the tank in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base; 2. Top seat; 3. Sealing cover; 4. Control device; 5. Nitrogen generator body; 6. Gas pipe; 7. Detection component; 71. Tank; 72. Piston; 73. Power supply; 74. Buzzer; 75. Wire; 76. Gripper; 8. Drive component; 81. Bracket; 82. Spring; 83. Slide rod; 84. Conductor rod. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved PSA energy-saving nitrogen generator. The technical solution of this utility model is as follows:

[0026] like Figures 1-4 As shown, a PSA energy-saving nitrogen generator includes a base 1, a nitrogen generator body 5 mounted on the base 1, a sealing cover 3 fixedly connected to the base 1, a top seat 2 at the top of the sealing cover 3, and a control device 4 connected to the base 1. The control device 4 is electrically connected to the nitrogen generator body 5 and is used to control the operation of the nitrogen generator body 5 from outside the sealing cover 3. The sealing cover 3 is made of a transparent material, such as tempered glass.

[0027] The detection component 7 includes a tank 71, a piston 72, a power supply 73, a buzzer 74, and a wire 75. The tank 71 is fixedly connected to the sealing cover 3, the piston 72 is slidably connected to the inside of the tank 71, the power supply 73 and the buzzer 74 are fixedly connected to the inner wall of the tank 71, and a wire 75 is provided between the power supply 73 and the buzzer 74. The wire 75 connects the power supply 73 and the buzzer 74 in series, but the two ends of the wire 75 are not connected to each other, so a closed loop is not formed.

[0028] The drive assembly 8 includes a bracket 81 and a conductor rod 84. The bracket 81 is fixedly connected to the piston 72, and the conductor rod 84 is disposed on the bracket 81. The conductor rod 84 cooperates with the wire 75. By connecting the two ends of the conductor rod 84 and the wire 75, the two ends of the wire 75 can be connected. The power supply 73, buzzer 74 and other components together form a closed circuit, thereby causing the buzzer 74 to sound an alarm.

[0029] In this invention, the detection component 7 also includes grippers 76. Both ends of the wire 75 are fixedly connected to grippers 76. The grippers 76 cooperate with the conductor rod 84. By using the contact between the grippers 76 and the conductor rod 84, the wire 75 and the conductor rod 84 can be better connected. The grippers 76 are made of metal with good conductivity.

[0030] In this utility model, the drive assembly 8 also includes a slide rod 83, which is slidably connected to the bracket 81. The conductor rod 84 is fixedly connected to the slide rod 83. Since the increase in air pressure inside the sealing cover 3 means there is a leak, the piston 72 will slide due to the increase in air pressure. Therefore, the piston 72 can push the bracket 81 and the slide rod 83 and conductor rod 84 on it to move.

[0031] In this utility model, the drive assembly 8 also includes a spring 82. One end of the spring 82 is fixedly connected to the inside of the bracket 81, and the other end of the spring 82 is fixedly connected to the slide rod 83. When the conductor rod 84 has contacted the gripper 76, the piston 72 may continue to move. At this time, the slide rod 83 and the conductor rod 84 remain stationary, while the piston 72 and the bracket 81 move, accompanied by the spring 82 being squeezed.

[0032] In this utility model, there are two of each of the bracket 81, slide bar 83 and gripper 76, and the two ends of the conductor rod 84 are fixedly connected to the two slide bars 83 respectively.

[0033] In this invention, the slide bar 83 is made of insulating material, and the distance between the two grippers 76 is less than the length of the conductor rod 84.

[0034] The specific working method is as follows: Since the entire nitrogen generator body 5 is located inside the sealed cover 3, the intake and exhaust of the nitrogen generator body 5 can be controlled by two gas pipes 6. When the nitrogen generator body 5 is working, once a nitrogen leak occurs, the nitrogen will be sealed inside the sealed cover 3. Since there is gas inside the sealed cover 3, the leaked nitrogen will cause the gas pressure inside the sealed cover 3 to increase. The increased gas pressure will cause the piston 72 inside the tank 71 to move. The movement of the piston 72 will drive the two supports 81, the slide rod 83, and the conductor rod 84 to move. As the conductor rod 84 moves, the conductor rod 84 will eventually block the two grippers 76. At this time, the grippers 76, the wires 75, the conductor rod 84, the power supply 73, and the buzzer 74 constitute a complete circuit. Therefore, the power supply 73 provides electrical energy, which causes the buzzer 74 to start and make a sound to remind that there is a leak inside the sealed cover 3.

[0035] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A PSA energy-saving nitrogen generator, comprising a base (1), a nitrogen generator body (5) mounted on the base (1), a sealing cover (3) fixedly connected to the base (1), a top seat (2) mounted on the top of the sealing cover (3), and a control device (4) connected to the base (1), the control device (4) being electrically connected to the nitrogen generator body (5), characterized in that: Also includes The detection component (7) includes a tank (71), a piston (72), a power supply (73), a buzzer (74), and a wire (75). The tank (71) is fixedly connected to the sealing cover (3). The piston (72) is slidably connected to the inside of the tank (71). The power supply (73) and the buzzer (74) are fixedly connected to the inner wall of the tank (71). The wire (75) is provided between the power supply (73) and the buzzer (74). The drive assembly (8) includes a bracket (81) and a conductor rod (84). The bracket (81) is fixedly connected to the piston (72), and the conductor rod (84) is disposed on the bracket (81) and cooperates with the wire (75).

2. The PSA energy-saving nitrogen generator according to claim 1, characterized in that: The detection component (7) also includes grippers (76), and both ends of the wire (75) are fixedly connected to grippers (76), which cooperate with the conductor rod (84).

3. The PSA energy-saving nitrogen generator according to claim 2, characterized in that: The drive assembly (8) further includes a slide rod (83), which is slidably connected to the bracket (81), and the conductor rod (84) is fixedly connected to the slide rod (83).

4. The PSA energy-saving nitrogen generator according to claim 3, characterized in that: The drive assembly (8) also includes a spring (82), one end of which is fixedly connected to the inside of the bracket (81), and the other end of which is fixedly connected to the slide rod (83).

5. A PSA energy-saving nitrogen generator according to claim 4, characterized in that: Two of each of the bracket (81), slide bar (83) and gripper (76) are provided, and the two ends of the conductor rod (84) are fixedly connected to the two slide bars (83) respectively.

6. A PSA energy-saving nitrogen generator according to claim 5, characterized in that: The slide bar (83) is made of insulating material, and the distance between the two grippers (76) is less than the length of the conductor rod (84).

7. A PSA energy-saving nitrogen generator according to claim 1, characterized in that: Both ends of the sealing cover (3) are fixedly connected to air pipes (6), and the two air pipes (6) are connected to the air inlet and air outlet of the nitrogen generator body (5).