Nitrogen making machine with noise reduction structure

Abstract

The utility model relates to the technical field of nitrogen making machines, in particular to a nitrogen making machine with a noise reduction structure, which comprises a base and a box body, the upper end of the base is fixedly connected with the box body, a heat dissipation device is arranged in the middle of the upper end of the box body, and a turnover device is arranged on the left side of the upper end of the box body. A nitrogen making machine body is fixedly connected to the middle of the upper end of the base, the right end of the nitrogen making machine body fixedly communicates with an air inlet end, and the left end of the nitrogen making machine body fixedly communicates with an air outlet end. Through cooperation of the heat dissipation device and the turnover device, an output shaft of a first motor rotates to drive a worm to rotate, the worm rotates to drive a worm gear to rotate, the worm gear rotates to drive a rotating rod to rotate synchronously, the rotating rod rotates to drive a baffle to turn over by 90 degrees, and after turning over, the baffle can enable external air to penetrate through the interior of a box body to cool a nitrogen making machine body in the box body; the energy consumption is reduced, the working load of the nitrogen making machine main body is reduced, the service life is prolonged, and the use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, specifically a nitrogen generator with a noise reduction structure. Background Technology

[0002] Pressure swing adsorption (PSA) nitrogen generators are nitrogen generating devices designed and manufactured based on PSA technology. During operation, these generators generate noise, necessitating the use of a nitrogen generator with noise reduction features.

[0003] For example, the authorization announcement number is "CN 214087728" A type of nitrogen generator, labeled "U", uses a crank handle to rotate a worm gear, which in turn rotates a worm wheel. A gear is connected to the top of the worm wheel via a rotating shaft, causing the gear to rotate synchronously with the worm wheel. The meshing of the gear and rack causes linear displacement of the rack. The other end of the rack is connected to two sliding rods via a fixed rod. Each of the four sliding rods has a pressing block fixedly mounted on one end. Each pressing block has a semi-circular groove at its end, the inner diameter of which matches the outer diameter of the support rod. As the pressing block moves towards the support rod, the semi-circular groove engages with the outer wall of the support rod. The sliding friction from the pressing restricts the rotation of the support rod, ensuring that each roller cannot rotate during operation. This prevents the nitrogen generator from sliding at multiple angles on a horizontal surface, improving its stability. However, this device is prone to overheating during operation. Heat dissipation is achieved through ventilation holes machined on the outer shell. However, the small surface area of ​​these holes results in poor heat dissipation, leading to a heavy load and high energy consumption after prolonged operation, affecting the device's lifespan and reducing its effectiveness. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the nitrogen generator in the device easily overheats during operation. The heat dissipation holes machined on the surface of the outer shell are used for heat dissipation, but the heat dissipation effect is poor due to the small heat dissipation area of ​​the heat dissipation holes. After long-term operation, the nitrogen generator will be under heavy load, which will affect the service life of the device and reduce the effectiveness of the device. Therefore, a nitrogen generator with a noise reduction structure is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a nitrogen generator with a noise reduction structure, including a base and a housing. The housing is fixedly connected to the upper end of the base. A heat dissipation device is provided in the middle of the upper end of the housing. A flipping device is provided on the left side of the upper end of the housing. The nitrogen generator body is fixedly connected to the middle of the upper end of the base. An air inlet is fixedly connected to the right end of the nitrogen generator body. An air outlet is fixedly connected to the left end of the nitrogen generator body.

[0007] Preferably, the flipping device includes a first motor and a first housing. The lower end of the first housing is fixedly connected to the box body. The first motor is fixedly connected to the first housing via a bracket. A worm is fixedly connected to the output shaft of the first motor. The outer wall of the worm meshes with a worm wheel. A rotating rod is fixedly connected to the outer wall of the worm wheel. A baffle is fixedly connected to the lower end of the rotating rod.

[0008] Preferably, the two ends of the worm are rotatably connected to the first housing via bearings, and the worm wheel shaft is rotatably connected to the first housing via bearings.

[0009] Preferably, a damping sound insulation felt is fixedly connected to the inner wall of the box, and a sound-absorbing sponge is fixedly connected to the inner wall of the damping sound insulation felt.

[0010] Preferably, the heat dissipation device includes a second outer shell and a fixing block. The lower end of the second outer shell is fixedly connected to the housing. The fixing block is fixedly connected to the inner wall of the second outer shell. A second motor is fixedly connected to the inner wall of the fixing block. A spiral blade is fixedly connected to the output shaft of the second motor. The upper end of the second outer shell is provided with a top cover. The inner wall of the top cover is threadedly connected to a bolt.

[0011] Preferably, the second outer casing is fixedly connected to the upper cover by bolts.

[0012] The nitrogen generator with a noise reduction structure proposed in this utility model has the following advantages: Through the cooperation of the heat dissipation device and the flipping device, the output shaft of the second motor is started to rotate, which drives the spiral blade to rotate synchronously. While the spiral blade rotates, air is blown into the inside of the chamber. When the outside wind speed is high, the second motor is turned off, and the external power supply of the first motors on both sides is connected. At the same time, the output shafts of the first motors on both sides are started to rotate. The rotation of the output shaft of the first motor drives the worm gear to rotate. Due to the characteristics of the worm gear, the rotation of the worm gear drives the worm wheel to rotate, and the rotation of the worm wheel drives the rotating rod to rotate synchronously. The rotation of the rotating rod causes the baffle to flip 90 degrees. After the baffle is flipped, the outside air can pass through the inside of the chamber to cool the nitrogen generator body inside the chamber, reducing energy consumption, reducing the working load of the nitrogen generator body, improving service life, and improving the performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 for Figure 1 A diagram illustrating the heat dissipation status;

[0016] Figure 4 for Figure 2 Part A of the diagram;

[0017] Figure 5 for Figure 2 Side sectional view of the flipping device;

[0018] Figure 6 for Figure 2 Part B of the diagram is shown.

[0019] In the diagram: 1. Base, 2. Tilting device, 201. First motor, 202. First outer shell, 203. Worm gear, 204. Worm wheel, 205. Rotating rod, 206. Baffle, 3. Heat dissipation device, 301. Second outer shell, 302. Fixing block, 303. Second motor, 304. Spiral blade, 305. Top cover, 306. Bolt, 4. Box body, 5. Nitrogen generator body, 6. Inlet end, 7. Outlet end, 8. Sound-absorbing sponge, 9. Damping sound insulation felt. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6 In this embodiment, a nitrogen generator with a noise reduction structure includes a base 1 and a housing 4. The housing 4 is fixedly connected to the upper end of the base 1. A heat dissipation device 3 is provided in the middle of the upper end of the housing 4. A flipping device 2 is provided on the left side of the upper end of the housing 4. The nitrogen generator body 5 is fixedly connected to the middle of the upper end of the base 1. The nitrogen generator body 5 has been disclosed in the authorization announcement number "CN214087728 U" and will not be described in detail here. An air inlet 6 is fixedly connected to the right end of the nitrogen generator body 5, and an air outlet 7 is fixedly connected to the left end of the nitrogen generator body 5.

[0022] The worm gear 203 is rotatably connected to the first housing 202 at both ends via bearings. The worm wheel 204 is rotatably connected to the first housing 202 via bearings. A damping sound insulation felt 9 is fixedly connected to the inner wall of the housing 4. The damping sound insulation felt 9 is designed to meet the actual working requirements. A sound-absorbing sponge 8 is fixedly connected to the inner wall of the damping sound insulation felt 9. The sound-absorbing sponge 8 is designed to meet the actual working requirements. The second housing 301 is fixedly connected to the top cover 305 via bolts 306.

[0023] See attached document Figure 1-5The flipping device 2 includes a first motor 201 and a first housing 202. The first motor 201 is a servo motor, which can meet the working requirements according to actual needs. The lower end of the first housing 202 is fixedly connected to the box 4. The first motor 201 is fixedly connected to the first housing 202 through a bracket. The output shaft of the first motor 201 is fixedly connected to a worm gear 203. The outer wall of the worm gear 203 meshes with a worm wheel 204. The rotation of the worm gear 203 drives the worm wheel 204 to rotate. The outer wall of the worm wheel 204 is fixedly connected to a rotating rod 205. The rotation of the worm wheel 204 drives the rotating rod 205 to rotate synchronously. The lower end of the rotating rod 205 is fixedly connected to a baffle 206. The rotation of the rotating rod 205 drives the baffle 206 to move synchronously.

[0024] See attached document Figure 1-3 The heat dissipation device 3 includes a second outer shell 301 and a fixing block 302. The lower end of the second outer shell 301 is fixedly connected to the box 4. The fixing block 302 is fixedly connected to the inner wall of the second outer shell 301. The second motor 303 is fixedly connected to the inner wall of the fixing block 302. The second motor 303 can meet the working requirements according to actual needs. The output shaft of the second motor 303 is fixedly connected to a spiral blade 304. The rotation of the output shaft of the second motor 303 drives the spiral blade 304 to rotate, so that the gas flows. The upper end of the second outer shell 301 is provided with a top cover 305. The inner wall of the top cover 305 is threadedly connected to a bolt 306.

[0025] Working principle:

[0026] Nitrogen generator noise reduction and nitrogen generation process:

[0027] The operator connects the air inlet 6 of the nitrogen generator body 5 to the air source and the air outlet 7 of the nitrogen generator body 5 to the collection container. The nitrogen generator body 5 is then started. The air is processed by the pressure swing adsorption (PSA) nitrogen generator inside the nitrogen generator body 5. Using high-quality carbon molecular sieve as the adsorbent, the PSA principle is applied. The molecular sieve, which is filled with micropores, selectively adsorbs air to achieve the purpose of oxygen-nitrogen separation. Nitrogen gas is then discharged from the air outlet 7 to the external collection container. Since the nitrogen generator body 5 generates noise during operation, the unique sound-absorbing groove design of the absorbent sponge 8 on the inner wall of the housing 4 can effectively absorb mid-to-high frequency sound waves. The damping sound insulation felt 9 further reduces noise transmission, reducing the harm caused by noise to the operator and the environment. This completes the nitrogen generation and noise reduction process of the nitrogen generator body.

[0028] The heat dissipation process of nitrogen generator body during nitrogen generation:

[0029] During operation, the nitrogen generator body 5 generates heat that needs to be dissipated. When the outside wind speed is low, the bolt 306 is unscrewed from the inside of the top cover 305, thus separating the top cover 305 and the second outer casing 301. The external power supply to the second motor 303 is then connected, starting the output shaft of the second motor 303 and causing the spiral blades 304 to rotate synchronously. As the spiral blades 304 rotate, air is blown into the casing 4. When the outside wind speed is high, the second motor 303 is turned off, and the external power supply to the first motors 201 on both sides is simultaneously connected, starting the first motors 201 on both sides. The output shaft of the first motor 201 rotates, which drives the worm gear 203 to rotate. Due to the characteristics of the worm gear, the rotation of the worm gear 203 drives the worm wheel 204 to rotate, which in turn drives the rotating rod 205 to rotate synchronously. The rotation of the rotating rod 205 causes the baffle 206 to rotate 90 degrees. After the rotation, the baffle 206 allows the outside air to pass through the inside of the housing 4 to cool the nitrogen generator body 5 inside the housing 4, reducing energy consumption. By controlling the above process to reverse, the baffle 206 can be reset, completing the heat dissipation process of nitrogen generation in the nitrogen generator body.

[0030] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A nitrogen generator with a noise reduction structure, comprising a base (1) and a housing (4), wherein the housing (4) is fixedly connected to the upper end of the base (1), characterized in that: The upper middle part of the box (4) is provided with a heat dissipation device (3), the upper left side of the box (4) is provided with a flipping device (2), the upper middle part of the base (1) is fixedly connected to the nitrogen generator body (5), the right end of the nitrogen generator body (5) is fixedly connected to the air inlet (6), and the left end of the nitrogen generator body (5) is fixedly connected to the air outlet (7).

2. The nitrogen generator with a noise reduction structure according to claim 1, characterized in that: The flipping device (2) includes a first motor (201) and a first housing (202). The lower end of the first housing (202) is fixedly connected to the box (4). The first motor (201) is fixedly connected to the first housing (202) through a bracket. The output shaft of the first motor (201) is fixedly connected to a worm (203). The outer wall of the worm (203) meshes with a worm wheel (204). The outer wall of the worm wheel (204) is fixedly connected to a rotating rod (205). The lower end of the rotating rod (205) is fixedly connected to a baffle (206).

3. The nitrogen generator with a noise reduction structure according to claim 2, characterized in that: The two ends of the worm (203) are rotatably connected to the first housing (202) through bearings, and the rotating shaft of the worm wheel (204) is rotatably connected to the first housing (202) through bearings.

4. The nitrogen generator with a noise reduction structure according to claim 1, characterized in that: The inner wall of the box (4) is fixedly connected to a damping sound insulation felt (9), and the inner wall of the damping sound insulation felt (9) is fixedly connected to a sound-absorbing sponge (8).

5. The nitrogen generator with a noise reduction structure according to claim 1, characterized in that: The heat dissipation device (3) includes a second outer shell (301) and a fixing block (302). The lower end of the second outer shell (301) is fixedly connected to the box body (4). The fixing block (302) is fixedly connected to the inner wall of the second outer shell (301). The second motor (303) is fixedly connected to the inner wall of the fixing block (302). The output shaft of the second motor (303) is fixedly connected to a spiral blade (304). The upper end of the second outer shell (301) is provided with a top cover (305). The inner wall of the top cover (305) is threadedly connected to a bolt (306).

6. The nitrogen generator with a noise reduction structure according to claim 5, characterized in that: The second outer shell (301) is fixedly connected to the upper cover (305) by bolts (306).

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