Anti-corrosion adsorption barrel of nitrogen making machine

Abstract

The utility model discloses a nitrogen making machine anti-corrosion adsorption cylinder which comprises a cylinder body, the lower end in the cylinder body is of an arc-shaped structure, the upper end of the cylinder body is provided with a cylinder cover, one side of the cylinder body is fixedly provided with a connecting pipe, the connecting pipe is communicated with the cylinder body, one side of the connecting pipe is provided with a filter pipe, the filter pipe is communicated with the connecting pipe, and the filter pipe is communicated with the connecting pipe. A filter pipe is arranged in the adsorption cylinder, an air inlet pipe is arranged on one side of the filter pipe and communicated with the filter pipe, flange plates are fixedly arranged on the two sides of the filter pipe, and the filter pipe is fixedly connected with the air inlet pipe and the connecting pipe through the flange plates. And the protection performance of the adsorption cylinder is not good enough.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, specifically to a corrosion-resistant adsorption cylinder for a nitrogen generator. Background Technology

[0002] The adsorption cartridge is a key component of a nitrogen generator. Its primary function during nitrogen production is to adsorb impurity gases. These packing materials possess characteristics such as high specific surface area, narrow pore size distribution, and strong adsorption capacity. Under high pressure, the adsorbent exhibits a strong adsorption capacity for impurities such as oxygen in compressed air, while nitrogen is retained, thus achieving oxygen-nitrogen separation. When the adsorbent becomes saturated, it can be desorbed and regenerated by reducing the pressure or introducing regeneration gas, restoring its adsorption capacity. Corrosion resistance is an important feature of the adsorption cartridge.

[0003] For example, Chinese patent CN220736963U, entitled "A Nitrogen Adsorption Cylinder," includes an adsorption device comprising: a cylinder with a cover at its top; multiple carbon molecular sieves disposed inside the cylinder; a flange structure disposed on the facing surface between the cylinder and the cover; and a filtration device disposed inside the cylinder. The filtration device comprises: a shell disposed inside the cylinder; a filter plate disposed on the bottom inner wall of the shell; a shaft disposed inside the shell and rotatably connected to the filter plate; and multiple fan blades disposed on the outer outer wall of the shaft. The fan blades are designed to be blown by wind, and the bottom of the fan blades has a protrusion. The contact area between the protrusion and the filter plate is arc-shaped. The shell has a narrow upper and wide lower structure. A support block that cooperates with the shell is disposed inside the cylinder. Rubber pads one at the bottom and top of the shell and rubber pad two on the outer outer wall of the shell are located at the connection between the cylinder and the cover.

[0004] While the existing technologies can produce nitrogen, in practical use, moisture in the air easily enters the adsorption cylinder. When air is blown into the adsorption cylinder, the moisture in the air enters the adsorption cylinder along with it, which easily corrodes the inner wall of the adsorption cylinder. On the other hand, the protective performance of the adsorption cylinder is not good enough. Usually, the outer wall of the adsorption cylinder is exposed to the air for a long time, which causes the moisture in the air to corrode the outer wall of the adsorption cylinder, thereby shortening the service life of the adsorption cylinder. Therefore, it does not meet the current needs. In response, we propose a corrosion-resistant adsorption cylinder for nitrogen generators. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant adsorption cylinder for a nitrogen generator, in order to solve the problems mentioned in the background art, such as the easy entry of moisture in the air into the interior of the adsorption cylinder and the insufficient protective performance of the adsorption cylinder.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen generator anti-corrosion adsorption cylinder, comprising a cylinder body, the lower end of which has an arc-shaped structure, a cylinder cover at the upper end of the cylinder body, a connecting pipe fixedly disposed on one side of the cylinder body, the connecting pipe communicating with the cylinder body, a filter pipe disposed on one side of the connecting pipe, the filter pipe communicating with the connecting pipe, an air inlet pipe disposed on one side of the filter pipe, the air inlet pipe communicating with the filter pipe, and flanges fixedly disposed on both sides of the filter pipe, the filter pipe being fixedly connected to the air inlet pipe and the connecting pipe respectively through the flanges.

[0007] Preferably, filter screens are provided on both sides inside the filter tube, and the mesh size of the filter screen on the side closer to the air inlet pipe is larger than that of the filter screen on the side closer to the connecting pipe. A dehumidifying plate is fixedly provided in the middle position inside the filter tube.

[0008] Preferably, the outer surface of the cylinder is provided with a composite anti-corrosion layer, which consists of an outer anti-corrosion layer, an anti-corrosion reinforcement layer, and an inner anti-corrosion layer. The inner anti-corrosion layer is applied to the outer surface of the cylinder, the anti-corrosion reinforcement layer is sprayed onto the outer surface of the inner anti-corrosion layer, and the outer anti-corrosion layer is applied to the outer surface of the anti-corrosion reinforcement layer.

[0009] Preferably, a hygrometer is fixedly installed at the upper end of the connecting pipe, and the detection end of the hygrometer extends into the interior of the connecting pipe.

[0010] Preferably, a sealing ring is fixedly provided at the lower end of the cylinder cover and at the upper end opening of the cylinder body.

[0011] Preferably, a pressure gauge is fixedly installed at the upper end of the cylinder cover, and several bolts are installed at the upper end of the cylinder cover outside the pressure gauge. The lower ends of the bolts extend to the lower end of the cylinder cross plate, and nuts are sleeved on the outer side of the lower ends of the bolts.

[0012] Preferably, an air outlet pipe is fixedly installed at the lower end of the cylinder, a valve is fixedly installed on the outside of the air outlet pipe, and four support rods are fixedly installed at the lower end of the cylinder located outside the air outlet pipe, with the support rods distributed in a ring at equal intervals.

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

[0014] 1. This utility model can pre-treat the air entering the adsorption cylinder through a filter screen and a dehumidifying plate. During the air pre-treatment, the air is delivered to the filter tube through the air inlet pipe. The air entering the filter tube is first initially filtered by the filter screen near the air inlet pipe. At this time, the filter screen intercepts and filters larger impurities in the air. The air passing through the filter screen then passes through the dehumidifying plate, which adsorbs the moisture in the air. Finally, the air is filtered again through another filter screen, so that clean and dry air enters the adsorption cylinder, thereby preventing moisture in the air from entering the cylinder.

[0015] 2. This utility model improves the corrosion resistance of the outer wall of the cylinder by setting a composite anti-corrosion layer. The outer anti-corrosion layer improves the wear resistance of the cylinder and prevents scratches on the outer wall of the cylinder caused by external impacts, thus protecting other coatings. The anti-corrosion reinforcement layer improves the corrosion resistance of the cylinder and prevents corrosion of the cylinder caused by external factors. The inner anti-corrosion layer improves the high temperature resistance of the cylinder and enables the cylinder to work stably and continuously in high temperature environments.

[0016] 3. This utility model allows for quick replacement of the filter tube using a hygrometer and a flange. After the filter tube has been used for a period of time, the operator observes the data displayed on the hygrometer. When the data is not within the normal range, nitrogen production is stopped and the threaded rod on the flange is rotated to disengage it from the flange. At this point, the old filter tube is removed from between the inlet pipe and the connecting pipe, and the new filter tube is placed between the inlet pipe and the connecting pipe. The new filter tube is then fixed in place by the threaded rod, making cylinder maintenance more convenient. Attached Figure Description

[0017] Figure 1 This is a perspective view of the external structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 This is a partially enlarged view of the internal structure of the composite anti-corrosion layer of this utility model;

[0021] In the diagram: 1. Cylinder body; 2. Cylinder cover; 3. Pressure gauge; 4. Bolt; 5. Nut; 6. Support rod; 7. Air outlet pipe; 8. Valve; 9. Composite anti-corrosion layer; 901. Outer anti-corrosion layer; 902. Reinforced anti-corrosion layer; 903. Inner anti-corrosion layer; 10. Sealing ring; 11. Connecting pipe; 12. Filter pipe; 13. Air inlet pipe; 14. Humidity meter; 15. Filter screen; 16. Dehumidification plate; 17. Flange. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4An embodiment of this utility model provides a nitrogen generator anti-corrosion adsorption cylinder, including a cylinder body 1. The lower end of the cylinder body 1 has an arc-shaped structure. A cylinder cover 2 is provided at the upper end of the cylinder body 1. A connecting pipe 11 is fixedly provided on one side of the cylinder body 1, and the connecting pipe 11 communicates with the cylinder body 1. A filter pipe 12 is provided on one side of the connecting pipe 11, and the filter pipe 12 communicates with the connecting pipe 11. An air inlet pipe 13 is provided on one side of the filter pipe 12, and the air inlet pipe 13 communicates with the filter pipe 12. Flanges 17 are fixedly provided on both sides of the filter pipe 12, and the filter pipe 12 is fixedly connected to the air inlet pipe 13 and the connecting pipe 11 respectively through the flanges 17.

[0024] In use, when pre-treating the air, the air is delivered to the filter tube 12 through the air inlet pipe 13. The air entering the filter tube 12 is first filtered by the filter screen 15 near the air inlet pipe 13. At this time, the filter screen 15 intercepts and filters larger impurities in the air. The air passing through the filter screen 15 then passes through the dehumidification plate 16, which adsorbs the moisture in the air. Finally, the air is filtered again through another filter screen 15, so that clean and dry air enters the adsorption cylinder.

[0025] Please see Figure 2 Both sides of the filter tube 12 are equipped with filter screens 15. The mesh size of the filter screen 15 on the side closer to the air inlet pipe 13 is larger than that on the side closer to the connecting pipe 11. A dehumidifying plate 16 is fixedly installed in the middle of the filter tube 12. The dehumidifying plate 16 is filled with bamboo charcoal particles to facilitate the removal of moisture from the air.

[0026] Please see Figure 2 and Figure 4 The outer surface of the cylinder 1 is provided with a composite anti-corrosion layer 9, which consists of an outer anti-corrosion layer 901, an anti-corrosion reinforcement layer 902, and an inner anti-corrosion layer 903. The inner anti-corrosion layer 903 is applied to the outside of the cylinder 1, the anti-corrosion reinforcement layer 902 is sprayed on the outside of the inner anti-corrosion layer 903, and the outer anti-corrosion layer 901 is applied on the outside of the anti-corrosion reinforcement layer 902. The outer anti-corrosion layer 901 is made of epoxy resin, the anti-corrosion reinforcement layer 902 is made of fluorocarbon paint, and the inner anti-corrosion layer 903 is made of a mixture of glass fiber and resin. This composite anti-corrosion layer 9 facilitates the improvement of the corrosion resistance of the outer wall of the cylinder 1.

[0027] Please see Figure 2 A hygrometer 14 is fixedly installed at the upper end of the connecting pipe 11. The detection end of the hygrometer 14 extends into the inside of the connecting pipe 11, so as to facilitate the detection of the humidity of the air entering the cylinder 1 through the hygrometer 14.

[0028] Please see Figure 2 and Figure 3A sealing ring 10 is fixedly installed at the lower end of the cylinder cover 2 and the upper opening of the cylinder body 1, so as to reduce the sealing between the cylinder cover 2 and the cylinder body 1 through the sealing ring 10.

[0029] Please see Figure 1 and Figure 2 A pressure gauge 3 is fixedly installed on the upper end of the cylinder cover 2. Several bolts 4 are installed on the upper end of the cylinder cover 2 outside the pressure gauge 3. The lower end of the bolts 4 extends to the lower end of the horizontal plate of the cylinder body 1. Nuts 5 are sleeved on the lower end of the bolts 4 to facilitate fixing the cylinder cover 2 to the cylinder body 1 by means of bolts 4 and nuts 5.

[0030] Please see Figure 2 and Figure 3 An air outlet pipe 7 is fixedly installed at the lower end of the cylinder 1, and a valve 8 is fixedly installed on the outside of the air outlet pipe 7. Four support rods 6 are fixedly installed at the lower end of the cylinder 1 outside the air outlet pipe 7. The support rods 6 are distributed in a ring at equal intervals, which facilitates the opening and closing of the air outlet pipe 7 through the valve 8.

[0031] Working principle: After the filter tube 12 has been used for a period of time, the operator observes the data displayed on the humidity meter 14. When the data is not within the normal range, the production of nitrogen is stopped and the threaded rod on the flange 17 is rotated to disengage the threaded rod from the flange 17. At this time, the old filter tube 12 is removed from between the air inlet pipe 13 and the connecting pipe 11, and the new filter tube 12 is placed between the air inlet pipe 13 and the connecting pipe 11. The new filter tube 12 is then fixed by the threaded rod.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corrosion-resistant adsorption cylinder for a nitrogen generator, comprising a cylinder body (1), wherein the lower end of the interior of the cylinder body (1) has an arc-shaped structure, characterized in that: The upper end of the cylinder (1) is provided with a cylinder cover (2). A connecting pipe (11) is fixedly provided on one side of the cylinder (1). The connecting pipe (11) is connected to the cylinder (1). A filter pipe (12) is provided on one side of the connecting pipe (11). The filter pipe (12) is connected to the connecting pipe (11). An air inlet pipe (13) is provided on one side of the filter pipe (12). The air inlet pipe (13) is connected to the filter pipe (12). Flanges (17) are fixedly provided on both sides of the filter pipe (12). The filter pipe (12) is fixedly connected to the air inlet pipe (13) and the connecting pipe (11) respectively through the flanges (17).

2. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 1, characterized in that: Both sides of the filter tube (12) are provided with filter screens (15). The mesh size of the filter screen (15) on the side closer to the air inlet pipe (13) is larger than that of the filter screen (15) on the side closer to the connecting pipe (11). A dehumidifying plate (16) is fixedly installed in the middle position inside the filter tube (12).

3. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 2, characterized in that: The outer side of the cylinder (1) is provided with a composite anti-corrosion layer (9). The composite anti-corrosion layer (9) consists of an outer anti-corrosion layer (901), an anti-corrosion reinforcement layer (902), and an inner anti-corrosion layer (903). The inner anti-corrosion layer (903) is coated on the outside of the cylinder (1), the anti-corrosion reinforcement layer (902) is sprayed on the outside of the inner anti-corrosion layer (903), and the outer anti-corrosion layer (901) is coated on the outside of the anti-corrosion reinforcement layer (902).

4. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 3, characterized in that: A humidifier (14) is fixedly installed at the upper end of the connecting tube (11), and the detection end of the humidifier (14) extends into the connecting tube (11).

5. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 4, characterized in that: A sealing ring (10) is fixedly installed at the lower end of the cylinder cover (2) and at the upper opening of the cylinder body (1).

6. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 5, characterized in that: A pressure gauge (3) is fixedly installed on the upper end of the cylinder cover (2). Several bolts (4) are installed on the upper end of the cylinder cover (2) outside the pressure gauge (3). The lower end of the bolts (4) extends to the lower end of the horizontal plate of the cylinder (1). A nut (5) is sleeved on the outside of the lower end of the bolts (4).

7. The anti-corrosion adsorption cylinder for a nitrogen generator according to claim 6, characterized in that: An air outlet pipe (7) is fixedly installed at the lower end of the cylinder (1), and a valve (8) is fixedly installed on the outside of the air outlet pipe (7). Four support rods (6) are fixedly installed at the lower end of the cylinder (1) located outside the air outlet pipe (7), and the support rods (6) are distributed in a ring at equal intervals.

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