Integrated small nitrogen making machine

Abstract

The utility model discloses an integrated small-sized nitrogen making machine, which relates to the technical field of nitrogen making machines and comprises a rack, two supporting rods are fixedly arranged in the rack, adsorption cylinders are arranged on two sides of each supporting rod, a gas storage tank is fixedly arranged on the outer side of the rack, a gas inlet pipe is fixedly arranged at the output end of the gas storage tank, and a gas outlet pipe is fixedly arranged at the output end of the gas storage tank. An extension pipe is fixedly arranged at one end of the air inlet pipe, and the two ends of the extension pipe correspond to the two adsorption cylinders respectively. According to the nitrogen preparation device, the rack is arranged, the detachable adsorption barrel is arranged in the rack, the carbon molecular sieve net used for adsorbing and preparing nitrogen is arranged in the adsorption barrel, the gas storage tank and the compression gas pump are arranged on the outer side of the rack, and the adsorption barrel, the gas storage tank and the compression gas pump are integrally installed on the rack; the space occupation of the device is reduced while nitrogen preparation is realized, so that the device is convenient to assemble and use.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to an integrated small-sized nitrogen generator. Background Art

[0002] The pressure swing adsorption nitrogen generator uses high-quality carbon molecular sieve as adsorbent. Under certain mechanical effects, the diffusion rate of oxygen in the micropores of the carbon molecular sieve is much greater than that of nitrogen. When the adsorption has not reached equilibrium, nitrogen is enriched in the gas phase to form finished nitrogen. Then the pressure is reduced to normal pressure, and the adsorbent desorbs the adsorbed oxygen and other impurities to achieve regeneration.

[0003] For example, a pressure swing adsorption nitrogen making device with publication number CN209536980U includes a base, an air compressor, a combined filter, a support frame, a pressure swing adsorption nitrogen making machine, an input pipe and an output pipe. An air compressor is fixedly arranged on one side of the top surface of the base, a pipe on one side of the air compressor is connected to a combined filter, and a pressure swing adsorption nitrogen making machine is arranged on one side of the combined filter. The utility model can effectively filter the input air through the combined filter and the air filter, thereby improving the safety and life of the equipment. Through the pressure swing adsorption nitrogen making machine, nitrogen can be effectively and flexibly produced. Through the nitrogen detector, the first electromagnetic valve, the reflux pipe and the second electromagnetic valve, the output nitrogen can be effectively detected. If the nitrogen concentration is not enough, the nitrogen can be refluxed for further purification. Through the nitrogen leak alarm and the horn, it can effectively monitor whether the nitrogen is leaking, thereby improving the safety of the equipment, and is suitable for being widely promoted and used.

[0004] The above technical solution adopts a split design in actual application, which makes the whole machine difficult to assemble and has low space utilization.

[0005] Therefore, it is necessary to invent an integrated small nitrogen generator to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an integrated small-sized nitrogen generator to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated small-scale nitrogen generator comprises a frame, two support rods are fixedly arranged inside the frame, adsorption cylinders are arranged on both sides of the support rods, a gas storage tank is fixedly arranged on the outer side of the frame, an air intake pipe is fixedly arranged at the output end of the gas storage tank, an extension pipe is fixedly arranged at one end of the air intake pipe, and the two ends of the extension pipe respectively correspond to the two adsorption cylinders, a compressed air pump is fixedly arranged at the input end of the gas storage tank, an exhaust pipe is fixedly arranged at the top of the frame, and the bottom end of the exhaust pipe corresponds to the two adsorption cylinders, bellows are arranged at both ends of the adsorption cylinder, one end of the bellows is movably provided with a connecting seat through a bearing, two fixing seats are fixedly arranged at both ends of the frame, the fixing seats located at the two ends of the frame correspond to the extension pipe and the exhaust pipe respectively, and the fixing seats are fixedly connected to the connecting seats through threads.

[0008] Preferably, a fixing frame is fixedly provided at the middle portion of the inner side of the adsorption cylinder, and a connecting rod is fixedly provided at the outer side of the fixing frame.

[0009] Preferably, both ends of the connecting rod are fixed with end covers by bolts, and the end cover is fixed to one end of the corrugated pipe.

[0010] Preferably, a fixing block is fixedly provided in the middle of the fixing frame, and a positioning seat is fixedly provided on the side where the fixing frame and the end cover are close to each other.

[0011] Preferably, a carbon molecular sieve is arranged between the two positioning seats, and the carbon molecular sieve is arranged on the outside of the fixing block.

[0012] Preferably, a fixing nut is fixedly provided on the outer side of the end cover, an adjusting bolt is provided on the internal thread of the fixing nut, and the adjusting bolt is penetrated through a bearing and is provided at one end of the frame.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides a frame, a detachable adsorption cylinder is provided inside the frame, a carbon molecular sieve for adsorbing and preparing nitrogen is provided inside the adsorption cylinder, and a gas storage tank and a compressed air pump are provided outside the frame. The adsorption cylinder, the gas storage tank and the compressed air pump are integrated and installed on the frame, thereby realizing nitrogen preparation and reducing the space occupied by the device, so as to facilitate the assembly and use of the device;

[0015] 2. The utility model provides an adsorption cylinder with end covers at both ends of the adsorption cylinder. A connecting seat is provided in the middle of the end cover through a bellows. The connecting seat cooperates with the fixing seat on the frame to realize the connection between the adsorption cylinder and the device pipeline, thereby facilitating the disassembly and assembly of the adsorption cylinder. A fixing frame is provided in the middle of the inner side of the adsorption cylinder, and the carbon molecular sieve is installed between the fixing frame and the end cover. The carbon molecular sieve can be replaced by removing the end cover, so as to facilitate the maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the frame structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the adsorption tube of the utility model.

[0019] Figure 4 It is a schematic cross-sectional view of the adsorption tube structure of the utility model.

[0020] In the figure: 1. frame; 2. support rod; 3. adsorption cylinder; 4. gas storage tank; 5. air inlet pipe; 6. extension pipe; 7. compressed air pump; 8. exhaust pipe; 9. bellows; 10. connecting seat; 11. fixing seat; 12. fixing frame; 13. connecting rod; 14. end cover; 15. fixing block; 16. positioning seat; 17. carbon molecular sieve; 18. fixing nut; 19. adjusting bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 An integrated small nitrogen generator shown in the figure comprises a frame 1, two support rods 2 are fixedly arranged inside the frame 1, adsorption cylinders 3 are arranged on both sides of the support rods 2, a gas storage tank 4 is fixedly arranged on the outside of the frame 1, an air inlet pipe 5 is fixedly arranged at the output end of the gas storage tank 4, an extension pipe 6 is fixedly arranged at one end of the air inlet pipe 5, and the two ends of the extension pipe 6 correspond to the two adsorption cylinders 3 respectively, a compressed air pump 7 can extract and compress air and transport it to the gas storage tank 4, and the compressed air in the gas storage tank 4 can enter the adsorption cylinder 3 through the air inlet pipe 5 and the extension pipe 6 to achieve adsorption treatment of the air;

[0023] Specifically, a compressed air pump 7 is fixedly provided at the input end of the gas storage tank 4, an exhaust pipe 8 is fixedly provided at the top of the frame 1, and the bottom end of the exhaust pipe 8 corresponds to the two adsorption cylinders 3, and bellows 9 are provided at both ends of the adsorption cylinder 3, and a connecting seat 10 is movably provided at one end of the bellows 9 through a bearing, and two fixing seats 11 are fixedly provided at both ends of the interior of the frame 1, and the fixing seats 11 located at both ends of the frame 1 correspond to the extension pipe 6 and the exhaust pipe 8 respectively, and the fixing seats 11 are fixedly connected to the connecting seat 10 through threads, and the bellows 9 is provided as a retractable structure to facilitate the disassembly and assembly of the adsorption cylinder 3;

[0024] More specifically, a fixing frame 12 is fixedly provided at the inner middle part of the adsorption cylinder 3, a connecting rod 13 is fixedly provided at the outer side of the fixing frame 12, and end covers 14 are fixedly provided at both ends of the connecting rod 13 by bolts, and the end cover 14 is fixedly provided at one end of the bellows 9;

[0025] In addition, a fixing block 15 is fixedly arranged in the middle of the fixing frame 12, and a positioning seat 16 is fixedly arranged on the side where the fixing frame 12 and the end cover 14 are close to each other. A carbon molecular sieve 17 is arranged between the two positioning seats 16, and the carbon molecular sieve 17 is arranged on the outside of the fixing block 15. Compressed air passes through the two carbon molecular sieves 17, and the carbon molecular sieves 17 can adsorb oxygen and impurities in the air to complete the preparation of nitrogen;

[0026] Moreover, a fixing nut 18 is fixedly provided on the outer side of the end cover 14, and an adjusting bolt 19 is provided on the internal thread of the fixing nut 18. The adjusting bolt 19 is passed through one end of the frame 1 through a bearing. The adjusting bolt 19 cooperates with the fixing nut 18 to fix the position between the end cover 14 and the frame 1, thereby fixing the position of the adsorption cylinder 3.

[0027] Working principle of this utility model:

[0028] When the device is in use, the compressed air pump 7 can extract, compress and transport air to the air storage tank 4. The compressed air in the air storage tank 4 can enter the adsorption cylinder 3 through the air inlet pipe 5 and the extension pipe 6. At this time, the compressed air enters the interior of the carbon molecular sieve 17 located below. Under the action of pressure, the compressed air passes through the carbon molecular sieve 17 below and enters the adsorption cylinder 3, and then passes through the carbon molecular sieve 17 above and is discharged through the exhaust pipe 8. In this process, the carbon molecular sieve 17 can adsorb oxygen and impurities in the air to complete the preparation of nitrogen.

[0029] When replacing and maintaining the carbon molecular sieve 17, the adjustment bolt 19 is rotated to separate the adjustment bolt 19 from the fixing nut 18, and then the connecting seat 10 is rotated to separate the connecting seat 10 from the fixing seat 11, so that the limit on the adsorption cylinder 3 can be released. At this time, the adsorption cylinder 3 can be taken out from the inside of the frame 1, and then the nut between the end cover 14 and the connecting rod 13 can be removed to release the limit on the end cover 14, and the end cover 14 can be removed from the adsorption cylinder 3, and then the carbon molecular sieve 17 can be disassembled and replaced.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An integrated small nitrogen generator, comprising a frame (1), characterized in that: Two support rods (2) are fixedly arranged inside the frame (1), and adsorption cylinders (3) are arranged on both sides of the support rods (2). An air storage tank (4) is fixedly arranged on the outside of the frame (1), and an air intake pipe (5) is fixedly arranged at the output end of the air storage tank (4). An extension pipe (6) is fixedly arranged at one end of the air intake pipe (5), and the two ends of the extension pipe (6) correspond to the two adsorption cylinders (3) respectively. A compressed air pump (7) is fixedly arranged at the input end of the air storage tank (4). The top end of the frame (1) is fixedly provided with a compressed air pump (7). An exhaust pipe (8) is fixedly provided, and the bottom end of the exhaust pipe (8) corresponds to the two adsorption cylinders (3), and both ends of the adsorption cylinder (3) are provided with a bellows (9), and one end of the bellows (9) is movably provided with a connecting seat (10) through a bearing, and two fixed seats (11) are fixedly provided at both ends of the interior of the frame (1), and the fixed seats (11) located at the two ends of the frame (1) correspond to the extension pipe (6) and the exhaust pipe (8) respectively, and the fixed seats (11) are fixedly connected to the connecting seat (10) through threads.

2. The integrated small nitrogen generator according to claim 1, characterized in that: A fixing frame (12) is fixedly arranged at the middle part of the inner side of the adsorption cylinder (3), and a connecting rod (13) is fixedly arranged at the outer side of the fixing frame (12).

3. The integrated small nitrogen generator according to claim 2, characterized in that: Both ends of the connecting rod (13) are fixed with end covers (14) by means of bolts, and the end cover (14) is fixedly arranged on one end of the corrugated tube (9).

4. The integrated small nitrogen generator according to claim 3, characterized in that: A fixing block (15) is fixedly arranged in the middle of the fixing frame (12), and a positioning seat (16) is fixedly arranged on the side where the fixing frame (12) and the end cover (14) are close to each other.

5. The integrated small nitrogen generator according to claim 4, characterized in that: A carbon molecular sieve (17) is arranged between the two positioning seats (16), and the carbon molecular sieve (17) is arranged on the outside of the fixing block (15).

6. The integrated small nitrogen generator according to claim 5, characterized in that: A fixing nut (18) is fixedly arranged on the outer side of the end cover (14), an adjusting bolt (19) is arranged on the inner thread of the fixing nut (18), and the adjusting bolt (19) is arranged on one end of the frame (1) through a bearing.

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