Waste gas emission recycling device of nitrogen making machine

By introducing multi-layer filter plates and activated carbon adsorption layers into the nitrogen generator exhaust gas treatment device, and adopting a motor-driven locking mechanism, the problems of decreased filtration efficiency and difficult maintenance in traditional devices are solved, achieving efficient exhaust gas purification and simple maintenance operation.

CN224056942UActive Publication Date: 2026-03-31TIANJIN DINGLICHENG TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional nitrogen generator exhaust gas treatment devices accumulate impurities in their filtration systems after prolonged operation, leading to decreased filtration efficiency. Furthermore, the replacement or cleaning process is cumbersome, time-consuming, and labor-intensive.

Method used

A waste gas emission recovery and utilization device was designed, which includes filter plates, activated carbon adsorption layers and intelligent locking mechanisms. The multi-layer filter plates improve filtration efficiency, and the motor-driven locking mechanism enables automatic locking and unlocking of the filter plates, facilitating maintenance. The gas flow rate is controlled by support frames and valves.

Benefits of technology

It improves the filtration and purification effect of exhaust gas, simplifies the installation and replacement process of filter plates, ensures smooth transmission of exhaust gas and prevents leakage, and improves maintenance efficiency.

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Abstract

The utility model relates to the technical field of nitrogen making machine waste gas, in particular to a nitrogen making machine waste gas emission recycling device which comprises a machine body, a recycling barrel and a filtering device, the filtering device comprises an auxiliary box, a filtering plate, an installation channel and an installation block, a cavity is formed in the recycling barrel, an opening is formed in the front side wall of the auxiliary box, and the filtering plate is arranged in the cavity. A locking block is arranged at the front end of the filter plate, a locking mechanism is arranged on one side of the auxiliary box and comprises a locking box, a moving rod, a sliding block and a locking rod, a connecting plate is arranged at the front end of the sliding block, a sliding hole is formed in one side wall of the locking box, the locking rod is arranged at one end of the connecting plate, a locking hole is formed in the side wall of the auxiliary box, and the locking rod is arranged at the other end of the connecting plate. A fixing hole is formed in the side wall of the locking block, and the locking rod penetrates through the locking hole and the fixing hole, so that impurities and harmful substances in the waste gas are effectively removed, the quality of discharged waste gas is improved, and the mounting and replacing processes of the filter plate are simplified.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator exhaust gas technology, specifically a nitrogen generator exhaust gas emission recovery and utilization device. Background Technology

[0002] As is well known, in the existing nitrogen production industry, the nitrogen generator is the core equipment, and its operating efficiency and waste gas treatment capacity directly affect production efficiency and environmental protection level. However, traditional nitrogen generators have many shortcomings in waste gas emission treatment, especially in the design and application of waste gas recovery and utilization devices.

[0003] Specifically, after long-term operation, the filtration system in the recovery device will accumulate a large amount of impurities and particulate matter, resulting in a decrease in filtration efficiency. This not only reduces the quality of the recovered gas but may also damage subsequent processing equipment. In this case, cleaning or replacing the filtration device often requires disassembling a large number of parts and even requires professional personnel to use special tools, which is time-consuming and labor-intensive. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a device for recovering and utilizing exhaust gas from a nitrogen generator.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen generator exhaust gas recovery and utilization device, comprising a body, a recovery tank, and a filter device. The recovery tank is located on one side wall of the body and connected to the body via a connecting pipe. The filter device is located on the upper side wall of the recovery tank and includes an auxiliary box, a filter plate, an installation channel, and an installation block. A cavity is provided inside the recovery tank, and the auxiliary box communicates with the cavity. One end of the connecting pipe passes through the auxiliary box. The installation channels are symmetrically arranged within the auxiliary box, and the installation block passes through and is slidably connected to the installation channels. Both ends of the filter plate are connected to the installation block, and the filter plate is adapted to the auxiliary box. The auxiliary box has an opening on its side wall, and a locking block is provided at the front end of the filter plate. The locking block is adapted to the opening. A locking mechanism is provided on one side of the auxiliary box. The locking mechanism includes a locking box, a moving rod, a slider, and a locking rod. The locking box is connected to the side wall of the auxiliary box. The moving rod is inside the locking box and passes through the slider and is threadedly connected to it. A connecting plate is provided at the front end of the slider. A sliding hole is provided on one side wall of the locking box. The connecting plate passes through the sliding hole and is slidably connected to it. The locking rod is at one end of the connecting plate. A locking hole is provided on the side wall of the auxiliary box. A fixing hole is provided on the side wall of the locking block. The locking rod passes through the locking hole and the fixing hole.

[0008] To achieve automated locking and unlocking of the filter plate, the present invention is improved by: a motor is provided on one side wall of the locking box, and the moving rod passes through the side wall of the locking box and is connected to the output end of the motor.

[0009] In order to enable intelligent control, the present invention is improved by: a control system is provided on one side of the machine body, and the control system is connected to the machine body via signal.

[0010] To enhance the stability of the device, the present invention is improved by providing a support frame at the lower end of both the machine body and the recycling bin, and a placement pad at the lower end of the support frame.

[0011] In order to control the emission rate and flow rate of the gas, the present invention is improved by providing an output pipe with a valve on the bottom wall of the recycling tank, and the output pipe is connected to the cavity.

[0012] In order to effectively remove harmful substances and odors from exhaust gas, the present invention is improved by providing an activated carbon adsorption layer on the inner sidewall of the cavity.

[0013] To facilitate the removal or insertion of the filter plate from the auxiliary box, the present invention is improved by providing a handle on the side wall of the locking block.

[0014] To improve filtration efficiency and accuracy, the present invention features the following improvement: the filter plate adopts a multi-layer structure.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a nitrogen generator exhaust gas recovery and utilization device, which has the following beneficial effects:

[0017] This nitrogen generator exhaust gas recovery and utilization device is equipped with a filter plate and an activated adsorption layer, which can efficiently filter and purify the exhaust gas generated by the nitrogen generator, effectively removing impurities and harmful substances, and improving the quality of the exhaust gas. It features an installation channel and mounting blocks, simplifying the installation and replacement of the filter plate, and facilitating daily maintenance and cleaning by the user. With the locking mechanism, the motor drives the moving rod to rotate, and the slider moves with the rotation of the moving rod, moving the locking rod to lock the filter plate. This easily completes the locking and unlocking operation of the filter plate, improving maintenance efficiency. The connection pipe design between the recovery tank and the machine body ensures smooth transmission of exhaust gas, while the filter device is tightly connected to the auxiliary box through the locking mechanism to prevent leakage problems that may occur during the filtration process. Attached Figure Description

[0018] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal cross-section of the recycling bin of this utility model.

[0021] Figure 4 This is an exploded view of the structural filtration device of this utility model.

[0022] In the diagram: 1. Main body; 2. Control system; 3. Support frame; 4. Placement pad; 5. Recycling bin; 6. Connecting pipe; 7. Auxiliary box; 8. Locking box; 9. Motor; 10. Output pipe; 11. Locking block; 12. Handle; 13. Mounting block; 14. Mounting channel; 15. Filter plate; 16. Moving rod; 17. Slider; 18. Locking rod; 19. Connecting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4A nitrogen generator exhaust gas recovery and utilization device includes a body 1, a recovery tank 5, and a filter device. The recovery tank 5 is located on one side wall of the body 1 and is connected to the body 1 via a connecting pipe 6. The filter device is located on the upper side wall of the recovery tank 5 and includes an auxiliary box 7, a filter plate 15, an installation channel 14, and an installation block 13. A cavity is provided inside the recovery tank 5, and the auxiliary box 7 communicates with the cavity. One end of the connecting pipe 6 passes through the auxiliary box 7. The installation channels 14 are symmetrically arranged inside the auxiliary box 7, and the installation blocks 13 pass through the installation channels 14 and are slidably connected to them. Both ends of the filter plate 15 are connected to the installation blocks 13, and the filter plate 15 is adapted to the auxiliary box 7. An opening is provided on the front side wall of the auxiliary box 7, and a locking block 11 is provided at the front end of the filter plate 15, which is adapted to the opening. A locking mechanism is provided on one side of the auxiliary box 7, and the locking mechanism includes a locking box 8 and a moving rod. 16. Slider 17 and locking rod 18. The locking box 8 is connected to the side wall of the auxiliary box 7. The moving rod 16 is inside the locking box 8. The moving rod 16 passes through the slider 17 and is threadedly connected to it. A connecting plate 19 is provided at the front end of the slider 17. A sliding hole is provided on one side wall of the locking box 8. The connecting plate 19 passes through the sliding hole and is slidably connected to it. The locking rod 18 is at one end of the connecting plate 19. A locking hole is provided on the side wall of the auxiliary box 7. A fixing hole is provided on the side wall of the locking block 11. The locking rod 18 passes through the locking hole and the fixing hole. A motor 9 is provided on one side wall of the locking box 8. The moving rod 16 passes through the side wall of the locking box 8 and is connected to the output end of the motor 9. A control system 2 is provided on one side of the machine body 1. The control system 2 is signal connected to the machine body 1. An activated carbon adsorption layer is provided on the inner side wall of the cavity. A handle 12 is provided on the front side wall of the locking block 11. The filter plate 15 adopts a multi-layer structure.

[0025] During operation, unit 1 is a nitrogen generator. When the nitrogen generator starts working, control system 2 starts and monitors the operating status of unit 1. This process is a mature technology and will not be elaborated upon here. The exhaust gas generated by the nitrogen generator during operation is introduced into the cavity of recovery tank 5 through connecting pipe 6. Before entering recovery tank 5, the exhaust gas passes through filter plate 15, which is multi-layered, effectively intercepting and removing impurities and harmful substances, thus purifying the gas before it enters recovery tank 5. Subsequently, the activated carbon adsorption layer in recovery tank 5 performs secondary filtration and purification. When filter plate 15 needs to be cleaned or disassembled, motor 9 is started, and motor 9 outputs power to move rod 1. Rotate the lever 6. Under the limit of the locking box 8, the slider 17 moves with the rotation of the moving rod 16. The connecting plate 19 drives the locking rod 18 to move. The locking rod 18 disengages from the locking hole and the fixing hole. Pull the handle 12, and the locking block 11 moves accordingly. The mounting block 13 slides in the mounting channel 14, and the filter plate 15 moves accordingly for disassembly. After cleaning, insert the mounting block 13 through the mounting channel 14. At this time, the locking block 11 is at the opening, and the fixing hole and the locking hole coincide. Start the motor 9. The output of the motor 9 drives the moving rod 16 to rotate. Move the locking rod 18 according to the above operation until it passes through the fixing hole and the locking hole for fixing.

[0026] In actual use, it is necessary to enhance the stability of the device. In order to meet the above requirements, in this embodiment, both the lower end of the body 1 and the recycling bin 5 are provided with a support frame 3, and the lower end of the support frame 3 is provided with a placement pad 4.

[0027] In practical use, it is necessary to easily adjust the valve opening according to actual needs to control the gas emission speed and flow rate. In order to meet the above requirements, in this embodiment, the bottom wall of the recycling tank 5 is provided with an output pipe 10 with a valve. The output pipe 10 is connected to the cavity and the output pipe 10 is connected to the device that needs to use purified gas for convenient use.

[0028] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nitrogen generator exhaust emission recycling device, comprising a machine body (1), a recycling barrel (5) and a filtering device, characterized in that: The recycling barrel (5) is arranged on one side wall of the machine body (1), the recycling barrel (5) is connected with the machine body (1) through a connecting pipe (6), the filtering device is arranged on the upper side wall of the recycling barrel (5), the filtering device comprises an auxiliary box (7), a filter plate (15), a mounting channel (14) and a mounting block (13), the recycling barrel (5) is provided with a cavity, the auxiliary box (7) is in communication with the cavity, one end of the connecting pipe (6) penetrates through the auxiliary box (7), the mounting channel (14) is symmetrically arranged in the auxiliary box (7), the mounting block (13) penetrates through the mounting channel (14) and is in sliding connection with the mounting channel (14), the filter plate (15) is connected with the mounting block (13) at two ends respectively, the filter plate (15) is matched with the auxiliary box (7), the auxiliary box (7) is provided with an opening on the front side wall, the filter plate (15) is provided with a locking block (11) at the front end, the locking block (11) is matched with the opening, one side of the auxiliary box (7) is provided with a locking mechanism, the locking mechanism comprises a locking box (8), a moving rod (16), a sliding block (17) and a locking rod (18), the locking box (8) is connected with the side wall of the auxiliary box (7), the moving rod (16) is arranged in the locking box (8), the moving rod (16) penetrates through the sliding block (17) and is in threaded connection with the sliding block (17), the sliding block (17) is provided with a connecting plate (19) at the front end, one side wall of the locking box (8) is provided with a sliding hole, the connecting plate (19) penetrates through the sliding hole and is in sliding connection with the sliding hole, the locking rod (18) is arranged at one end of the connecting plate (19), the side wall of the auxiliary box (7) is provided with a locking hole, the side wall of the locking block (11) is provided with a fixing hole, the locking rod (18) penetrates through the locking hole and the fixing hole.

2. The device according to claim 1, characterized in that: One side wall of the locking box (8) is provided with a motor (9), the moving rod (16) penetrates through the side wall of the locking box (8) and is connected with the output end of the motor (9).

3. The device according to claim 2, characterized in that: One side of the machine body (1) is provided with a control system (2), and the control system (2) is in signal connection with the machine body (1).

4. The device according to claim 3, characterized in that: The machine body (1) and the lower end of the recycling barrel (5) are provided with supporting frames (3), and the lower end of the supporting frame (3) is provided with a placing pad (4).

5. The device according to claim 4, characterized in that: The bottom wall of the recycling barrel (5) is provided with an output pipe (10) with a valve, and the output pipe (10) is in communication with the cavity.

6. The device according to claim 5, characterized in that: The inner side wall of the cavity is provided with an activated carbon adsorption layer.

7. The device according to claim 6, characterized in that: The locking block (11) is provided with a handle (12) on the front side wall.

8. The device according to claim 7, characterized in that: The filter plate (15) adopts a multi-layer structure.