Air filter device for nitrogen production

Abstract

The utility model discloses a kind of air filtering devices for nitrogen production, it is related to filter device technical field, including filter cavity box, filter cavity box one side is provided with air inlet assembly, filter cavity box other side is provided with air outlet assembly, filter cavity box inside is provided with filter assembly, filter cavity box top is provided with access hole, filter cavity box one side is provided with sliding rail, sliding rail is provided with two groups, two groups of sliding rail are slidably connected with protective plate, protective plate is provided with two groups, filter cavity box inner cavity left and right sides are provided with through cavity, filter cavity box top is provided with first and second placement cavity, filter assembly includes the installation box being set in filter cavity box inside, this kind of setting is convenient for user to disassemble and install filter mechanism in device, and then it is convenient for user to maintain and overhaul device, improve the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically an air filtration device for nitrogen production. Background Technology

[0002] Nitrogen production involves several key processes, including raw air filtration, compression, cooling, purification, pressurization, expansion, distillation, separation, reheating, and external supply. Separating dust from the air is a crucial step in nitrogen production. Air filtration devices are critical equipment in nitrogen production, primarily responsible for filtering impurities from the air to ensure the purity and quality of the nitrogen. Air filtration is essential in nitrogen production because air contains various impurities such as water vapor, carbon dioxide, hydrocarbons, and other particles. Without filtration, these impurities significantly affect the quality and purity of the nitrogen.

[0003] Based on this, a search on the patent website revealed a filter device for nitrogen production disclosed in Chinese patent application number 201821400275.4. This utility model can perform triple filtration and adsorption of air, remove particulate matter and dust from the air, facilitate nitrogen production, has low cost, and makes it easy to clean the filter screen and fiber lint. It can be seen that the above-mentioned patent has the following shortcomings: When using traditional nitrogen production filtration devices, dust and impurities accumulate on the internal filter screen after long-term use, and the filter screen's effect will weaken. It is necessary to disassemble, maintain and replace the filter mechanism in a timely manner. However, the filter screen plate inside the traditional filtration device is a fixed installation structure, which makes it inconvenient for the operator to disassemble and install the filter structure, reducing the practicality of the device.

[0004] To address the aforementioned issues, an air filtration device for nitrogen production is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an air filtration device for nitrogen production. By using this device, the problem of dust and impurities accumulating on the internal filter screen of traditional nitrogen production filtration devices in the background art after long-term use weakens the filter screen's effectiveness and requires timely disassembly, maintenance, and replacement of the filter mechanism is solved. However, the filter screen plate inside the traditional filter device is a fixed installation structure, which is inconvenient for the operator to disassemble and install the filter structure, reducing the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air filtration device for nitrogen production, comprising a filter chamber, an air inlet assembly on one side of the filter chamber, an air outlet assembly on the other side of the filter chamber, a filter assembly inside the filter chamber, an inspection port on the top of the filter chamber, a sliding rail on one side of the filter chamber, two sets of sliding rails, a protective plate slidably connected between the two sets of sliding rails, two sets of protective plates, through cavities on both the left and right sides of the inner cavity of the filter chamber, a first placement cavity and a second placement cavity on the top of the filter chamber, the filter assembly including a mounting box disposed inside the filter chamber, insertion slots on both the left and right sides of the inner cavity of the mounting box, six sets of insertion slots, a filter screen plate slidably disposed between two sets corresponding to the insertion slots, three sets of filter screen plates.

[0007] Using the above-mentioned mechanism, the three sets of filters serve to filter the air.

[0008] Preferably, the filter screen is a HEPA high-efficiency air filter.

[0009] Using the above-mentioned mechanism, the HEPA high-efficiency air filter plate refers to a device that can efficiently filter small particulate matter in the air. Its core indicator is a high-efficiency filtration mechanism with a filtration efficiency of more than 99% for particles with a diameter of 0.3μm.

[0010] Preferably, the air intake assembly includes an air intake pipe disposed on one side of the filter chamber, and a first protective plug is snapped onto one end of the air intake pipe, the first protective plug being matched with the first placement cavity.

[0011] The above-mentioned mechanism uses protective plugs to protect the inlet and outlet pipes, thus protecting the device when it is not in use.

[0012] Preferably, the air outlet assembly includes an air outlet pipe disposed on one side of the filter chamber, one end of the air outlet pipe is engaged with a second protective plug, the second protective plug is matched with the second placement cavity, and the air inlet pipe, the filter chamber and the air outlet pipe are interconnected.

[0013] Preferably, the filter assembly includes an air intake pipe disposed on one side of the mounting box, and the mounting box is provided with mounting slots on one side, and the mounting slots are provided in three sets.

[0014] The above-mentioned mechanism connects the air pump to the mounting box by engaging the mounting hole slot and connecting pipe, making it easy for users to disassemble and install.

[0015] Preferably, an air pump is provided on one side of the mounting box, and a connecting pipe is provided on one side of the air pump. There are three sets of connecting pipes, and all three sets of connecting pipes are interconnected with the input end of the air pump. An exhaust pipe is provided on one side of the output end of the air pump.

[0016] By employing the aforementioned mechanism and designing an air pump, the rate at which air enters the mounting box can be accelerated, thereby utilizing the filter screen inside the mounting box to filter the gas.

[0017] Preferably, the mounting slots and the connecting pipes are matched, and the three sets of connecting pipes are respectively engaged and connected inside the three sets of mounting slots.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In the nitrogen production process, air filtration is a crucial step because air contains various impurities and other particles. If these impurities are not filtered, they will significantly affect the quality and purity of the nitrogen. When using the device described in this application to filter air, the user removes the first and second protective plugs from the inlet and outlet pipes respectively. This opens the inlet and outlet pipe openings. The user then places the first protective plug into the first placement chamber and the second protective plug into the second placement chamber. This operation allows for the storage of the protective covers and prevents them from being lost. Finally, the two sets of protective plates are pulled towards each other until they close the inspection port at the top of the filter chamber. When the air pump is activated, air is drawn into the inlet pipe and then enters the mounting box through the passage and suction pipe. The air is filtered and purified by three sets of filter plates, resulting in triple filtration and adsorption. Compared to the efficiency of a single filter plate, three sets of filter plates can better remove particulate matter and other impurities from the air. The purified air passes through three sets of connecting pipes and exits the air pump through the exhaust pipe. The clean gas then exits the filter chamber box through the outlet pipe until the filtration process is complete. When the device is not in use, the first protective plug is re-locked and fixed at one end of the inlet pipe, and the second protective plug is locked and fixed at one end of the outlet pipe, thereby sealing and protecting the inlet and outlet pipe openings and improving the device's protective performance. 2. When cleaning and maintenance of the filter mechanism is required after prolonged use, the user should pull the two sets of protective plates horizontally away from each other to fully open the inspection port on the top of the filter chamber box. Remove the filter assembly from the filter chamber box and pull the three sets of filter screens vertically upwards, allowing them to slide out of their corresponding insertion slots. Remove the filter screens. When installing new filter screens, simply insert them into their corresponding insertion slots using a plug-in method. This simple and quick installation process is easy. When the user needs to inspect the air pump, pull it away from the mounting box to remove the connecting pipe from its corresponding mounting hole, separating the air pump from the mounting box for easy inspection. This design facilitates disassembly and installation of the filter mechanism, improving maintenance and extending the device's lifespan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural diagram of the filter chamber, air inlet assembly, air outlet assembly, and filter assembly of this utility model. Figure 3 This is an overall structural diagram of the filter assembly of this utility model; Figure 4 This is a structural diagram of the air pump and mounting box of this utility model after disassembly; Figure 5 This is a structural diagram of the filter screen plate inside the mounting box of this utility model.

[0020] In the diagram: 1. Filter chamber box; 11. Protective plate; 12. Sliding rail; 13. Through cavity; 2. Air inlet assembly; 3. Air outlet assembly; 21. Air inlet pipe; 22. First protective plug; 23. First placement cavity; 31. Air outlet pipe; 32. Second protective plug; 33. Second placement cavity; 4. Filter assembly; 41. Inhalation pipe; 42. Mounting box; 43. Air pump; 44. Exhaust pipe; 45. Connecting pipe; 46. Mounting slot; 47. Insertion slot; 48. Filter screen. Detailed Implementation

[0021] 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.

[0022] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0023] Combination Figures 1-5 An air filtration device for nitrogen production includes a filter chamber 1, an air inlet assembly 2 on one side of the filter chamber 1, an air outlet assembly 3 on the other side of the filter chamber 1, a filter assembly 4 inside the filter chamber 1, an inspection port on the top of the filter chamber 1, a sliding rail 12 on one side of the filter chamber 1, two sets of sliding rails 12, a protective plate 11 slidably connected between the two sets of sliding rails 12, two sets of protective plates 11, through cavities 13 on both the left and right sides of the inner cavity of the filter chamber 1, a first placement cavity 23 and a second placement cavity 33 on the top of the filter chamber 1, and a mounting box 42 disposed inside the filter chamber 1, with insertion slots 47 on both the left and right sides of the inner cavity of the mounting box 42, six sets of insertion slots 47, and a filter screen plate 48 slidably disposed between two sets of corresponding insertion slots 47, three sets of filter screen plates 48.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: The filter plate 48 specifically uses a HEPA high-efficiency air filter plate. The air intake assembly 2 includes an air intake pipe 21 disposed on one side of the filter chamber box 1. One end of the air intake pipe 21 is engaged with a first protective plug 22, which matches the first placement cavity 23. The air outlet assembly 3 includes an air outlet pipe 31 disposed on one side of the filter chamber box 1. One end of the air outlet pipe 31 is engaged with a second protective plug 32, which matches the second placement cavity 33. The air intake pipe 21, the filter chamber box 1, and the air outlet pipe 31 are interconnected. The filter assembly 4 includes an air intake pipe 41 disposed on one side of the mounting box 42. The mounting box 42 has three sets of mounting slots 46 on one side. An air pump 43 is disposed on one side of the mounting box 42. A connecting pipe 45 is disposed on one side of the air pump 43. The three sets of connecting pipes 45 are all connected to the input end of the air pump 43. An exhaust pipe 44 is disposed on the output end side of the air pump 43. The mounting slots 46 and the connecting pipes 45 are matched with each other. The three sets of connecting pipes 45 are respectively engaged and connected to the three sets of mounting slots 46.

[0026] In summary, the working principle is as follows: Air filtration is a crucial step in nitrogen production because air contains various impurities and other particles. If these impurities are not filtered, they will significantly affect the quality and purity of the nitrogen. When using the device of this application for air filtration, the user removes the first protective plug 22 and the second protective plug 32 from the inlet pipe 21 and outlet pipe 31 respectively. At this time, the openings of the inlet pipe 21 and outlet pipe 31 are open. The user then places the first protective plug 22 into the first placement cavity 23 and the second protective plug 32 into the second placement cavity 33. This operation allows for the storage of the protective cover and prevents its loss. Then, the two sets of protective plates 11 are pulled towards each other until they seal the inspection port at the top of the filter chamber box 1. After closing, the protective plates 11 are tightly attached to the top surface of the mounting box 42, preventing... The protective plate 11 seals the mounting box 42. At this time, the air pump 43 is turned on and the air is drawn into the air inlet pipe 21. The air will enter the mounting box 42 through the passage 13 and the suction pipe 41. The air will be filtered and purified by three sets of filter plates 48. The air is triple filtered and adsorbed. Compared with the working efficiency of a single filter, the three sets of filter plates 48 can better remove particulate matter and other impurities in the air. The purified air will pass through three sets of connecting pipes 45 and be discharged from the air pump 43 through the exhaust pipe 44. Then the clean gas will be discharged from the filter chamber box 1 through the exhaust pipe 31 until the gas filtration work is finished. When the device is not in use, the first protective plug 22 is re-clamped and fixed to one end of the air inlet pipe 21, and the second protective plug 32 is clamped and fixed to one end of the exhaust pipe 31, thereby sealing and protecting the air inlet pipe 21 and the exhaust pipe 31 opening, and improving the protective performance of the device. When the filter mechanism needs cleaning and maintenance after prolonged use, the user pulls the two sets of protective plates 11 horizontally away from each other, fully opening the inspection port at the top of the filter chamber box 1. The filter assembly 4 is then removed from the filter chamber box 1, and the three sets of filter screens 48 are pulled vertically upwards, causing them to slide out of the corresponding insertion slots 47. The filter screens 48 can then be removed. When installing a new filter screen 48, it is simply inserted into the corresponding insertion slots 47 using a plug-in method, completing the installation of the filter screen 48 quickly and easily. When the user needs to inspect the air pump 43, the air pump 43 can be pulled away from the mounting box 42, causing the connecting pipe 45 to be pulled out of the corresponding mounting hole slot 46, thus separating the air pump 43 from the mounting box 42 for easy inspection. This design facilitates the disassembly and installation of the filter mechanism, making maintenance and repair easier and extending the device's lifespan.

[0027] It should be noted that the aforementioned electrical components are equipped with power supplies, and their control methods are existing technologies. To avoid redundancy, they will be described here uniformly. Furthermore, this application is primarily for the protection of mechanical equipment, so the control methods and circuit connections will not be explained in detail herein. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0028] 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. An air filtration device for nitrogen production, comprising a filter chamber (1), an air inlet assembly (2) disposed on one side of the filter chamber (1), an air outlet assembly (3) disposed on the other side of the filter chamber (1), and a filter assembly (4) disposed inside the filter chamber (1), characterized in that: The filter chamber box (1) is provided with an inspection port at the top. A sliding rail (12) is provided on one side of the filter chamber box (1). There are two sets of sliding rails (12). A protective plate (11) is slidably connected between the two sets of sliding rails (12). There are two sets of protective plates (11). There are through cavities (13) on both the left and right sides of the inner cavity of the filter chamber box (1). A first placement cavity (23) and a second placement cavity (33) are provided at the top of the filter chamber box (1). The filter assembly (4) includes an installation box (42) disposed inside the filter chamber box (1). There are insertion slots (47) on both the left and right sides of the inner cavity of the installation box (42). There are six sets of insertion slots (47). A filter screen plate (48) is slidably disposed between two sets corresponding to the insertion slots (47). There are three sets of filter screen plates (48).

2. The air filtration device for nitrogen production according to claim 1, characterized in that: The filter plate (48) is specifically a HEPA high-efficiency air filter plate. The two sets of protective plates (11) can be used to close the inspection port on the top of the filter chamber box (1). After the protective plate (11) is closed, it is tightly attached to the top surface of the mounting box (42). The protective plate (11) seals the mounting box (42).

3. An air filtration device for nitrogen production according to claim 2, characterized in that: The air intake assembly (2) includes an air intake pipe (21) disposed on one side of the filter chamber (1), and a first protective plug (22) is engaged at one end of the air intake pipe (21). The first protective plug (22) is matched with the first placement cavity (23).

4. An air filtration device for nitrogen production according to claim 3, characterized in that: The air outlet assembly (3) includes an air outlet pipe (31) disposed on one side of the filter chamber box (1). One end of the air outlet pipe (31) is connected to a second protective plug (32). The second protective plug (32) matches the second placement cavity (33). The air inlet pipe (21), the filter chamber box (1) and the air outlet pipe (31) are interconnected.

5. An air filtration device for nitrogen production according to claim 4, characterized in that: The filter assembly (4) includes an air intake pipe (41) disposed on one side of the mounting box (42), and a mounting slot (46) is provided on one side of the mounting box (42), and the mounting slot (46) is provided in three sets.

6. An air filtration device for nitrogen production according to claim 5, characterized in that: An air pump (43) is provided on one side of the mounting box (42), and a connecting pipe (45) is provided on one side of the air pump (43). There are three sets of connecting pipes (45), and all three sets of connecting pipes (45) are connected to the input end of the air pump (43). An exhaust pipe (44) is provided on one side of the output end of the air pump (43).

7. An air filtration device for nitrogen production according to claim 6, characterized in that: The mounting slots (46) and the connecting pipes (45) are matched with each other, and the three sets of connecting pipes (45) are respectively engaged and connected inside the three sets of mounting slots (46).

Images