Pressure swing adsorption nitrogen generation device

Abstract

The utility model discloses a pressure swing adsorption nitrogen making device which comprises a tank body, supporting legs are connected to the lower end face of the tank body, a pressure swing adsorption piece is arranged in an inner cavity of the tank body, an installation opening is formed in the upper end of the tank body, a closed cover is installed on the inner side of the installation opening, a circular-truncated-cone-shaped installation shell is arranged in an inner cavity of the closed cover, and a filter screen is installed on the installation shell. According to the air purification device, water vapor and dust in air can be filtered and prevented from entering the tank body, through the air inlet angles of the air inlet pipes and the arc-shaped design of the cleaning plate, when air enters the tank body, the cleaning plate can be pushed, and the cleaning plate can clean the water vapor and the dust; the cleaning plate is driven to rotate, dust and impurities at the filtering position on the upper side of the filtering net are cleaned through the brush, the situation that filtering holes are blocked due to impurity accumulation is avoided, meanwhile, additional energy does not need to be added, and energy can be provided through original air conveying.

Description

Technical Field

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

[0002] The pressure swing adsorption nitrogen generator is a nitrogen generating device designed and manufactured according to the pressure swing adsorption technology. It uses air as raw material and high-quality carbon molecular sieve as adsorbent. It uses the principle of pressure swing adsorption to selectively adsorb air to achieve the purpose of oxygen and nitrogen separation. At present, most people use adsorption nitrogen generators to produce nitrogen; the oxygen in the air is adsorbed by molecular sieve fillers to prepare nitrogen for use. However, the air generally contains impurities such as dust and water vapor, which enter the device together with the air, affecting the overall operation of the device and the quality of nitrogen preparation.

[0003] Therefore, we propose a pressure swing adsorption nitrogen production device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a pressure swing adsorption nitrogen making device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pressure swing adsorption nitrogen making device comprises a tank body, a leg is connected to the lower end surface of the tank body, a pressure swing adsorption component is arranged in the inner cavity of the tank body, a mounting opening is opened at the upper end of the tank body, a closed cover is installed inside the mounting opening, a truncated cone-shaped mounting shell is arranged in the inner cavity of the closed cover, a filter screen is installed on the mounting shell, a cleaning plate for cleaning the filter screen is arranged on the upper side of the filter screen, and a group of air intake pipes are connected to the upper side of the closed cover.

[0007] Preferably, a group of discharge pipes are connected to the lower end surface of the tank body.

[0008] Preferably, the mounting opening and the side wall surfaces adjacent to the closing cover are both provided with threads, and a handle is connected to the side wall of the closing cover.

[0009] Preferably, a group of mounting plates are rotatably connected to the side wall at the lower end of the closure cover, mounting holes are provided on the side walls corresponding to the positions of the mounting plates and the mounting shell, and mounting pins are inserted into the mounting holes.

[0010] Preferably, a longitudinally penetrating notch is provided on the installation shell, a groove is provided on a side wall of the installation shell corresponding to the position of the notch, and the filter screen is arranged in the groove.

[0011] Preferably, a rotating shaft is rotatably connected to the inner wall of the closed cover, the cleaning plate is connected to the side wall of the rotating shaft, the cleaning plate is arc-shaped as a whole and a brush is connected to the lower end surface, and the lower end of the brush is in contact with the filter.

[0012] Preferably, the air intake pipe is designed to be inclined as a whole, and the position of the air intake pipe corresponds to that of the cleaning plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the utility model is in use, the water vapor and dust in the air can be filtered through the provided filter, so as to prevent the water vapor and dust from entering the interior of the tank body, thereby ensuring the smooth progress of the nitrogen production process, and at the same time will not affect the quality of the prepared nitrogen; and during use, through the air intake angle of the air intake pipe and the arc-shaped design of the cleaning plate, the cleaning plate can be pushed when the air enters, so that the cleaning plate rotates, and the dust and impurities at the filtering position on the upper side of the filter are cleaned by the brush, thereby avoiding the situation that the filter holes are blocked due to the accumulation of impurities, and at the same time, no additional energy is needed, and energy can be provided by the original air delivery; and the cleaned impurities are pushed into the storage space formed between the closing cover and the mounting shell, so that the user can handle them later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the closing cover and the mounting shell of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation shell and its auxiliary structures of the utility model;

[0018] Figure 4 It is a schematic diagram of the filter screen and its auxiliary structure of the utility model.

[0019] In the figure: 1-tank body, 101-discharge pipe, 2-pressure swing adsorption element, 3-mounting port, 4-closing cover, 401-handle, 5-mounting shell, 501-mounting plate, 502-mounting hole, 6-filter, 601-slot, 602-groove, 7-cleaning plate, 701-rotating shaft, 702-brush, 8-intake pipe. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 A pressure swing adsorption nitrogen making device comprises a tank body 1, a support leg is connected to the lower end surface of the tank body 1, a group of discharge pipes 101 are connected to the lower end surface of the tank body 1, a pressure swing adsorption component 2 is arranged in the inner cavity of the tank body 1, the pressure swing adsorption component 2 comprises a pressure swing structure and a molecular sieve filler, etc., oxygen in the air is adsorbed during operation, and then nitrogen is discharged and collected through the discharge pipe 101, an installation port 3 is opened at the upper end of the tank body 1, a closing cover 4 is installed inside the installation port 3, the side wall surfaces adjacent to the installation port 3 and the closing cover 4 are both provided with threads, and a handle 401 is connected to the side wall of the closing cover 4, so that the user can twist and disassemble the closing cover 4.

[0025] A truncated cone-shaped mounting shell 5 is provided in the inner cavity of the closed cover 4, and a group of mounting plates 501 are rotatably connected to the side wall of the lower end of the closed cover 4. Mounting holes 502 are provided on the side walls corresponding to the mounting plates 501 and the mounting shell 5. Mounting pins are inserted in the mounting holes 502. A slot is provided on the side wall of the mounting shell 5. The mounting plate 501 extends into the slot and then cooperates with the mounting pin, which facilitates the disassembly of the mounting shell 5 and the maintenance and replacement of the internal structure.

[0026] A filter screen 6 is installed on the installation shell 5. A longitudinal slot 601 is provided on the installation shell 5. A groove 602 is provided on the side wall of the installation shell 5 corresponding to the position of the slot 601. The filter screen 6 is arranged in the groove 602. The inner wall surface of the groove 602 is covered with a sealing ring structure to ensure the stability of the filter screen 6 during installation. The air moves to the tank body 1 through the slot 601 to produce nitrogen. At the same time, the filter screen 6 filters the air to prevent the inside.

[0027] A cleaning plate 7 for cleaning the filter 6 is provided on the upper side of the filter 6, a rotating shaft 701 is rotatably connected to the inner wall of the closed cover 4, the cleaning plate 7 is connected to the side wall of the rotating shaft 701, the cleaning plate 7 is overall arc-shaped and a brush 702 is connected to the lower end surface, the lower end of the brush 702 is in contact with the filter 6, and a group of air intake pipes 8 are connected to the upper side of the closed cover 4. The air intake pipes 8 are overall inclined in design, and the positions of the air intake pipes 8 and the cleaning plate 7 correspond. Through the air intake angle of the air intake pipes 8 and the arc-shaped design of the cleaning plate 7, the cleaning plate 7 can be pushed when air enters, so that the cleaning plate 7 is rotated, and the dust and impurities at the filtering position on the upper side of the filter 6 are cleaned by the brush 702, thereby avoiding the situation where the filter holes are blocked due to the accumulation of impurities, and the cleaned impurities are pushed into the storage space formed between the closed cover 4 and the mounting shell 5, so that the user can handle them later.

[0028] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A pressure swing adsorption nitrogen production device, comprising a tank body (1), wherein a support leg is connected to the lower end surface of the tank body (1), characterized in that: The inner cavity of the tank body (1) is provided with a pressure swing adsorption element (2); the upper end of the tank body (1) is provided with a mounting opening (3); a closed cover (4) is mounted inside the mounting opening (3); a truncated cone-shaped mounting shell (5) is mounted inside the inner cavity of the closed cover (4); a filter screen (6) is mounted on the mounting shell (5); a cleaning plate (7) for cleaning the filter screen (6) is provided on the upper side of the filter screen (6); and a group of air intake pipes (8) are connected to the upper side of the closed cover (4).

2. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: A group of discharge pipes (101) are connected to the lower end surface of the tank body (1).

3. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: The surfaces of the side walls adjacent to the mounting opening (3) and the closing cover (4) are both provided with threads, and a handle (401) is connected to the side wall of the closing cover (4).

4. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: A group of mounting plates (501) are rotatably connected to the side wall at the lower end of the closure cover (4), and mounting holes (502) are provided on the side walls corresponding to the mounting plates (501) and the mounting shell (5), and mounting pins are inserted into the mounting holes (502).

5. The pressure swing adsorption nitrogen production device according to claim 1, characterized in that: The installation shell (5) is provided with a longitudinally penetrating notch (601), and a groove (602) is provided on a side wall of the installation shell (5) corresponding to the position of the notch (601), and the filter screen (6) is arranged in the groove (602).

6. A pressure swing adsorption nitrogen production device according to claim 1, characterized in that: A rotating shaft (701) is rotatably connected to the inner wall of the closed cover (4), and the cleaning plate (7) is connected to the side wall of the rotating shaft (701). The cleaning plate (7) is generally arc-shaped and has a brush (702) connected to its lower end surface. The lower end of the brush (702) is in contact with the filter screen (6).

7. The pressure swing adsorption nitrogen production device according to claim 1, characterized in that: The air intake pipe (8) is designed to be inclined as a whole, and the positions of the air intake pipe (8) and the cleaning plate (7) correspond to each other.

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