Combined nitrogen making unit

Abstract

The utility model discloses a combined nitrogen making unit, which relates to the technical field of nitrogen making equipment and comprises a base, a nitrogen making machine body, an air compressor and a filter box are fixedly mounted at the top of the base, the nitrogen making machine body is communicated and connected with the air compressor, an air outlet is arranged at the top of the filter box, and the air compressor is communicated and connected with the air outlet of the filter box. An air inlet is formed in one side of the filter box, and sliding grooves are vertically formed in the front side and the rear side of the interior of the filter box at inclined angles; and the self-cleaning dust collecting mechanism comprises a filter screen plate, a fixing base, a lead screw, a first motor, a cleaning brush plate, a rectangular funnel, a dust discharging pipe and a dust collecting box, the filter screen plate is installed in the filter box at an inclined angle, and the filter screen plate is located between the air outlet and the air inlet. In the air compression process of nitrogen making processing, air can be well filtered, the influence of filtered and cleaned dust impurities on the filter mechanism is effectively reduced, and the overall practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen generation equipment technology, and in particular to a combined nitrogen generation unit. Background Technology

[0002] The combined nitrogen generator unit is a highly efficient nitrogen production device that combines air compression, purification, and adsorption separation technologies. Air is compressed by an air compressor and purified by a purification system to remove moisture, oil mist, and impurities. The air then enters an adsorption tower containing adsorbent. Using pressure swing adsorption (PSA) or temperature swing adsorption (TSA) technologies, the carbon molecular sieves in the adsorption tower adsorb oxygen and other impurities from the air, thereby separating high-purity nitrogen. It boasts advantages such as high efficiency, low operating costs, and ease of operation, and is widely used in industries such as chemical, electronics, food, and metallurgy, as follows.

[0003] A search revealed a patent with authorization announcement number CN221867925U, which discloses a combined pressure swing adsorption (PSA) nitrogen generator. The generator includes a main body and an air filter canister. The air filter canister is connected to a power component, a filter plate, an elastic cleaning component, and an air intake component. The filter plate is fixedly connected inside the air filter canister. The elastic cleaning component is connected to the power component and positioned at the lower part of the filter plate. The air intake component is located at the bottom of the air filter canister. The power component includes a motor, which is fixedly positioned at the top of the air filter canister. A transmission rod is fixedly installed at one end of the motor's output shaft. The transmission rod is located inside the air filter canister, passes through the filter plate, and is rotatably connected to it. A telescopic hole is provided at the bottom of the transmission rod. This invention, through its power component and elastic cleaning component, can shake off dust adhering to the brush bristles while cleaning the filter plate, enabling the bristles to effectively clean the filter plate for a prolonged period.

[0004] However, the aforementioned combined nitrogen generator still has the following areas for improvement. For example, during air filtration, the dust and impurities cleaned off the filter plates cannot be discharged from the air filter canister in a timely manner. When new air enters subsequently, it may re-entrain these cleaned-off dust and impurities located at the bottom of the air filter canister, causing them to re-adhere to the filter plates. This accumulation of dust and impurities can easily clog the filter plates, reducing their effective filtration area and thus lowering filtration efficiency. Furthermore, it increases the resistance of airflow through the filter plates, thereby increasing the system's pressure differential. This may affect the operating efficiency of the air compressor and increase energy consumption. Therefore, its structure needs improvement, and its practicality needs to be enhanced. Utility Model Content

[0005] This utility model discloses a combined nitrogen generator unit, which, through the installation of a self-cleaning dust collection mechanism, allows the air compressor to generate negative pressure inside the filter box, thereby drawing in air through the intake pipe. Once the air enters the filter box, it passes through the filter screen of the filter plate, filtering out dust and impurities. When cleaning the filter plate is required, the air compressor is stopped, and the first motor is started, driving the lead screw to rotate. The rotation of the lead screw, in conjunction with a sliding groove, moves a slider up and down, thereby moving a cleaning brush plate up and down to clean the dust and impurities from the filter screen. The removed dust... Dust and impurities fall into a rectangular funnel, which is then transported through the funnel and a guide pipe to the ash discharge pipe. Finally, the inclined ash discharge pipe discharges the dust into a collection box for centralized collection. Once the dust and impurities enter the collection box, the newly entering air cannot carry them up, making it difficult for them to re-adhere to the filter screen. This effectively prevents the accumulation of dust and impurities on the filter screen, thus avoiding a reduction in the effective filtration area, improving overall filtration efficiency, and preventing any impact on the normal operation of the air compressor. In summary, this solves the problems in the background technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a combined nitrogen generator unit, including a base, on which a nitrogen generator body, an air compressor, and a filter box are fixedly installed. The nitrogen generator body is connected to the air compressor. The top of the filter box is provided with an air outlet. The air compressor is connected to the air outlet of the filter box. An air inlet is provided on one side of the filter box. Sliding grooves are vertically opened at an oblique angle on both the front and rear sides of the interior of the filter box.

[0008] The self-cleaning dust collection mechanism includes a filter screen, a fixed base, a lead screw, a first motor, a cleaning brush, a rectangular funnel, a dust discharge pipe, and a dust collection box. The filter screen is installed at an angle inside the filter box, located between the air outlet and the air inlet. The upper half of the filter screen has a filter screen section. The fixed base is fixedly installed inside the filter box, with one side of the fixed base fitting against the side of the filter box with the air inlet. The front and rear sides of the fixed base are fitted and fixedly connected to the front and rear sides of the filter box. One end of the lead screw movably passes through the top of the filter box and is rotatably connected to the filter box. The bottom end of the lead screw is rotatably connected to the fixed base through a rotating connector. The lead screw is designed at an angle. A slider is screwed onto the outside of the lead screw. The front and rear sides of the slider are slidably connected to the sliding grooves on the front and rear sides of the filter box through sliding connectors. The first motor is fixedly installed by a mounting component. The first motor is connected to the shaft end of the lead screw and is mounted on the top of the filter box. One side of the cleaning brush plate is fixedly connected to one side of the slider, and the other side of the cleaning brush plate is provided with a bristle part. The bristle part contacts the filter screen part of the filter screen plate. The rectangular funnel is fixedly installed between the filter screen plate and the fixed base. The front and rear sides of the rectangular funnel are in contact with the front and rear sides of the interior of the filter box. The bottom of the rectangular funnel is provided with a guide tube. The ash discharge pipe is fixedly installed through the filter screen plate. One end of the ash discharge pipe is closed, and the other end of the ash discharge pipe is designed to be open and extends through the filter box to the outside of the filter box. The top of the ash discharge pipe is connected to the bottom end of the guide tube. The ash collection box is fixedly installed on the top of the base. One side of the ash collection box is connected to the ash discharge pipe. The other side of the ash collection box is provided with a box door. When the box door is closed, it is sealed to the ash collection box. The ash discharge pipe is inclined toward the ash collection box.

[0009] An auxiliary ash discharge mechanism is installed at one end of the ash discharge pipe and inside the pipe.

[0010] Furthermore, a plurality of protruding strips are fixedly installed on the side of the filter screen near the brush portion, and the protruding strips are located at the filter screen portion.

[0011] Furthermore, both the point where the lead screw passes through the filter box and the point where the ash discharge pipe passes through the filter box are sealed.

[0012] Furthermore, the interior of the rectangular funnel and the inner wall of the ash discharge pipe are both smooth surfaces.

[0013] Furthermore, the bottom surface of the ash collection box is designed to be inclined, and the bottom surface of the ash collection box is inclined towards the box door.

[0014] Furthermore, the auxiliary ash removal mechanism includes a screw conveyor and a second motor. The screw conveyor is rotatably installed inside the ash removal pipe, and the size of the screw conveyor matches the internal size of the drainage pipe. The second motor is fixedly installed at one closed end of the ash removal pipe, and the output end of the second motor is connected to the shaft end of the screw conveyor.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution incorporates a self-cleaning dust collection mechanism, which allows dust and impurities cleaned from the filter screen to be promptly discharged from the filter box during operation. This prevents the cleaned dust and impurities from being swept up by fresh air and re-attached to the filter screen, effectively avoiding the accumulation of dust and impurities on the filter screen and reducing its effective filtration area. This improves the overall filtration efficiency and avoids affecting the normal operation of the air compressor, making it highly practical.

[0017] 2. This technical solution incorporates an auxiliary ash removal mechanism, which helps to transport dust and impurities into the ash removal pipe and collect them in the ash collection box. This effectively prevents dust and impurities from accumulating inside the ash removal pipe and causing blockage, thus further improving the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a sectional view of the filter screen installation structure of this utility model;

[0021] Figure 3 A schematic diagram of the sectional structure of the rectangular funnel of this utility model;

[0022] Figure 4 This is a top-view sectional view of the internal structure of the filter box of this utility model;

[0023] Figure 5 This is an exploded view of the cleaning brush plate installation structure of this utility model;

[0024] Figure 6This is an exploded view of the spiral conveyor rod installation structure of this utility model.

[0025] In the diagram: 1. Base; 2. Nitrogen generator body; 3. Air compressor; 4. Filter box; 5. Air outlet; 6. Air inlet; 7. Slide groove; 8. Self-cleaning ash collection mechanism; 801. Filter screen; 802. Fixed base; 803. Lead screw; 804. First motor; 805. Cleaning brush; 806. Rectangular funnel; 807. Ash discharge pipe; 808. Ash collection box; 809. Filter screen section; 810. Sliding block; 811. Brush section; 812. Guide tube; 813. Box door; 814. Raised strip; 9. Auxiliary ash discharge mechanism; 901. Screw conveyor rod; 902. Second motor. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-5 A combined nitrogen generator unit includes a base 1. A nitrogen generator body 2, an air compressor 3, and a filter box 4 are fixedly installed on the top of the base 1. The nitrogen generator body 2 is connected to the air compressor 3. The top of the filter box 4 is provided with an air outlet 5. The air compressor 3 is connected to the air outlet 5 of the filter box 4. An air inlet 6 is provided on one side of the filter box 4. Sliding grooves 7 are vertically opened at an oblique angle on both the front and rear sides of the filter box 4.

[0030] The self-cleaning dust collection mechanism 8 includes a filter screen plate 801, a fixed base 802, a lead screw 803, a first motor 804, a cleaning brush plate 805, a rectangular funnel 806, a dust discharge pipe 807, and a dust collection box 808. The filter screen plate 801 is installed at an angle inside the filter box 4, and the filter screen plate 801 is located between the air outlet 5 and the air inlet 6. The upper half of the filter screen plate 801 is provided with a filter screen part 809. The fixed base 802 is fixedly installed inside the filter box 4, and one side of the fixed base 802 is attached to the side of the filter box 4 where the air inlet 6 is located. The front and rear sides of 802 are fixedly connected to the front and rear sides of the interior of the filter box 4. One end of the lead screw 803 movably passes through the top of the filter box 4 and is rotatably connected to the filter box 4. The bottom end of the lead screw 803 is rotatably connected to the fixed seat 802 through a rotating connector. The lead screw 803 is designed at an angle. A slider 810 is screwed to the outside of the lead screw 803. The front and rear sides of the slider 810 are slidably connected to the sliding grooves 7 on the front and rear sides of the interior of the filter box 4 through sliding connectors. The first motor 804 is fixedly installed on the top of the filter box 4 through a mounting piece, and the output of the first motor 804 is... The end is connected to the shaft end of the lead screw 803. One side of the cleaning brush plate 805 is fixedly connected to one side of the slider 810, and the other side of the cleaning brush plate 805 is provided with a bristle part 811. The bristle part 811 contacts the filter screen part 809 of the filter screen plate 801. The rectangular funnel 806 is fixedly installed between the filter screen plate 801 and the fixed base 802, and the front and rear sides of the rectangular funnel 806 are in contact with the front and rear sides of the interior of the filter box 4. The bottom of the rectangular funnel 806 is provided with a guide tube 812. The ash discharge pipe 807 is fixedly installed through the filter screen plate 801. One end of the ash discharge pipe 807 is... The ash discharge pipe 807 is closed, with one end open and extending through the filter box 4 to the outside of the filter box 4. The top of the ash discharge pipe 807 is connected to the bottom of the conduit 812. The ash collection box 808 is fixedly installed on the top of the base 1, and one side of the ash collection box 808 is connected to the ash discharge pipe 807. The other side of the ash collection box 808 is provided with a door 813. When the door 813 is closed, it is sealed to the ash collection box 808. The ash discharge pipe 807 is inclined toward the ash collection box 808. An auxiliary ash discharge mechanism 9 is installed at one end of the ash discharge pipe 807 and inside the ash discharge pipe 807.

[0031] Multiple protrusions 814 are fixedly installed on the side of the filter screen 801 near the brush part, and the protrusions 814 are located at the filter screen part 809; the screw 803 passes through the filter box 4 places and the ash discharge pipe 807 passes through the filter box 4 places, and both are sealed; the interior of the rectangular funnel 806 and the inner wall of the ash discharge pipe 807 are smooth surfaces; the inner bottom surface of the ash collection box 808 is designed with an inclination, and the inner bottom surface of the ash collection box 808 is inclined towards the box door 813.

[0032] In the specific implementation process, during operation, the air compressor 3 generates negative pressure inside the filter box 4, thereby drawing air in conjunction with the air intake pipe. Once the air enters the filter box 4, it passes through the filter screen 809 of the filter plate 801 to filter and intercept dust and impurities. When cleaning the filter plate 801 is required, the air compressor 3 is stopped, and the first motor 804 is started, driving the lead screw 803 to rotate. The rotation of the lead screw 803, in conjunction with the slide groove 7, causes the slider 810 to move up and down, thereby moving the cleaning brush plate 805 up and down to clean the dust and impurities from the filter screen 809 of the filter plate 801. The cleaned-off dust and impurities... The dust will fall into the rectangular funnel 806, and then be transported to the ash discharge pipe 807 through the rectangular funnel 806 and the conduit 812. Finally, the ash discharge pipe 807 discharges it to the ash collection box 808 for centralized collection. When these dust impurities enter the ash collection box 808, the newly entering air will not be able to pick up these cleaned dust impurities, so that the cleaned dust impurities are not easy to re-adhere to the filter screen part 809 of the filter screen plate 801. This effectively avoids the accumulation of a large amount of dust impurities on the filter screen part 809 of the filter screen plate 801, thereby reducing its effective filtration area, improving the overall filtration efficiency, and avoiding affecting the normal operation of the air compressor 3.

[0033] The presence of the protrusion 814 allows the brush part to contact and separate from the protrusion 814 in stages when the cleaning brush plate 805 moves up and down. When the bristle part 811 contacts and separates from the protrusion 814, vibration is generated, which effectively shakes off the dust and impurities attached to the bristle part 811, ensuring that the bristle part 811 can perform good dust cleaning treatment on the filter part 809 of the filter plate 801.

[0034] The screw 803 penetrating the filter box 4 and the ash discharge pipe 807 penetrating the filter box 4 are both sealed to ensure the internal sealing of the filter box 4, so that the air compressor 3 can generate negative pressure inside the filter box 4 to cooperate with the air inlet 6 to draw air.

[0035] The inner surface of the rectangular funnel 806 and the inner wall of the ash discharge pipe 807 are smooth to reduce the friction between them and dust and impurities, so that the dust can slide and move inside the rectangular funnel 806 and the ash discharge pipe 807.

[0036] The bottom surface of the dust collection box 808 is tilted towards the door 813 to facilitate the staff to regularly open the door 813 and clean the dust and impurities inside the dust collection box. Specific Implementation Example 2:

[0038] Reference Figure 3 and Figure 6In a preferred embodiment, the auxiliary ash discharge mechanism 9 includes a spiral conveying rod 901 and a second motor 902. The spiral conveying rod 901 is rotatably installed inside the ash discharge pipe 807, and the size of the spiral conveying rod 901 matches the internal size of the drain pipe. The second motor 902 is fixedly installed at one closed end of the ash discharge pipe 807, and the output end of the second motor 902 is connected to the shaft end of the spiral conveying rod 901.

[0039] In the specific implementation process, after dust and impurities enter the ash discharge pipe 807, the second motor 902 can drive the spiral conveyor rod 901 to rotate, which helps to transport the dust and impurities in the ash discharge pipe 807 to the ash collection box 808 for centralized collection, effectively preventing dust and impurities from adhering to the inside of the ash discharge pipe 807 and accumulating, thus preventing the ash discharge pipe 807 from becoming blocked.

[0040] Working principle: During operation, the air compressor 3 generates negative pressure inside the filter box 4, which, in conjunction with the air intake pipe, draws in air. Once the air enters the filter box 4, it passes through the filter screen 809 of the filter plate 801, filtering out dust and impurities. When cleaning the filter plate 801 is required, the air compressor 3 is stopped, and the first motor 804 is started, driving the lead screw 803 to rotate. The rotation of the lead screw 803, in conjunction with the slide groove 7, moves the slider 810 up and down, thereby moving the cleaning brush 805 up and down to clean the dust and impurities from the filter screen 809 of the filter plate 801. The cleaned dust and impurities will... The dust falls into the rectangular funnel 806, and then is transported through the rectangular funnel 806 and the conduit 812 to the ash discharge pipe 807. Finally, the inclined ash discharge pipe 807 discharges the dust into the ash collection box 808 for centralized collection. When these dust impurities enter the ash collection box 808, the newly entering air will not be able to pick up these cleaned dust impurities, so that the cleaned dust impurities are not easy to re-adhere to the filter screen part 809 of the filter screen plate 801. This effectively avoids the accumulation of a large amount of dust impurities on the filter screen part 809 of the filter screen plate 801, thereby reducing its effective filtration area, improving the overall filtration efficiency, and avoiding affecting the normal operation of the air compressor 3.

[0041] During the above process, after dust and impurities enter the ash discharge pipe 807, the second motor 902 can drive the spiral conveyor rod 901 to rotate, which helps to transport the dust and impurities in the ash discharge pipe 807 to the ash collection box 808 for centralized collection, effectively preventing dust and impurities from adhering to the inside of the ash discharge pipe 807 and accumulating, thus preventing the ash discharge pipe 807 from becoming blocked.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combined nitrogen generator unit comprising a base (1), characterized in that: The top of the base (1) is fixedly provided with a nitrogen generator body (2), an air compressor (3) and a filter box (4), the nitrogen generator body (2) is communicated with the air compressor (3), the top of the filter box (4) is provided with an air outlet (5), the air compressor (3) is communicated with the air outlet (5) of the filter box (4), one side of the filter box (4) is provided with an air inlet (6), and the inside of the filter box (4) is vertically provided with a chute (7) with an inclined angle on the front and back sides. The self-cleaning dust collecting mechanism (8) comprises a filter screen plate (801), a fixed seat (802), a lead screw (803), a first motor (804), a cleaning brush plate (805), a rectangular funnel (806), an ash discharge pipe (807) and a dust collecting box (808), the filter screen plate (801) is installed at an inclined angle in the inside of the filter box (4), and is located between the air outlet (5) and the air inlet (6), the upper half of the filter screen plate (801) is provided with a filter screen part (809), the fixed seat (802) is fixedly installed in the inside of the filter box (4), one side of the fixed seat (802) is attached to the side of the filter box (4) provided with the air inlet (6), the front and rear sides of the fixed seat (802) are fixedly connected with the front and rear sides of the inside of the filter box (4), one end of the lead screw (803) is movably penetrated through the top of the filter box (4) and is rotatably connected with the filter box (4), the bottom end of the lead screw (803) is rotatably connected with the fixed seat (802) through a rotating connecting piece, and the lead screw (803) is designed at an inclined angle, a sliding block (810) is screwed on the outside of the lead screw (803), the front and rear sides of the sliding block (810) are slidably connected with the sliding grooves (7) at the front and rear sides of the inside of the filter box (4) through sliding connecting pieces, the first motor (804) is fixedly installed on the top of the filter box (4) through a mounting piece, and the output end of the first motor (804) is connected with the shaft end of the lead screw (803), one side of the cleaning brush plate (805) is fixedly connected with one side of the sliding block (810), the other side of the cleaning brush plate (805) is provided with a bristle part (811), the bristle part (811) is in contact with the filter screen part (809) of the filter screen plate (801), the rectangular funnel (806) is fixedly installed between the filter screen plate (801) and the fixed seat (802), and the front and rear sides of the rectangular funnel (806) are attached to the front and rear sides of the inside of the filter box (4), the bottom of the rectangular funnel (806) is provided with a guide pipe (812), the ash discharge pipe (807) is fixedly installed at the filter screen plate (801) in a penetrating manner, one end of the ash discharge pipe (807) is closed, the other end of the ash discharge pipe (807) is designed in an open manner and extends to the outside of the filter box (4) through the filter box (4), the top of the ash discharge pipe (807) is in communication with the bottom end of the guide pipe (812), the dust collecting box (808) is fixedly installed on the top of the base (1), one side of the dust collecting box (808) is in communication with the ash discharge pipe (807), the other side of the dust collecting box (808) is provided with a box door (813), the box door (813) is in sealing connection with the dust collecting box (808) when closed, and the ash discharge pipe (807) is inclined towards the dust collecting box (808); The auxiliary ash discharge mechanism (9) is installed at the outside end and the inside of the ash discharge pipe (807).

2. The combined nitrogen generator unit according to claim 1, characterized in that: The filter screen plate (801) is fixedly installed with a plurality of convex strips (814) near one side of the brush part, and the convex strips (814) are located at the filter screen part (809).

3. The combined nitrogen generator unit according to claim 1, characterized in that: The lead screw (803) and the ash discharge pipe (807) penetrating through the filter box (4) are both subjected to sealing treatment.

4. The combined nitrogen generator unit of claim 1, wherein: The inside of the rectangular funnel (806) and the inner wall of the ash discharge pipe (807) are both smooth surfaces.

5. The combined nitrogen generator unit of claim 1, wherein: The inside bottom surface of the ash collecting box (808) is designed to be inclined, and the inside bottom surface of the ash collecting box (808) is inclined towards the box door (813).

6. The packaged nitrogen generator of claim 1, wherein: The auxiliary ash discharging mechanism (9) comprises a spiral conveying rod (901) and a second motor (902), the spiral conveying rod (901) is rotatably installed in the inside of the ash discharge pipe (807), the size of the spiral conveying rod (901) is matched with the inside size of the drain pipe, the second motor (902) is fixedly installed at the closed end of the ash discharge pipe (807), and the output end of the second motor (902) is connected with the shaft end of the spiral conveying rod (901).

Images