An efficient nitrogen adsorption cylinder

Abstract

The present invention belongs to the technical field of nitrogen production equipment, and specifically relates to an efficient nitrogen production adsorption cylinder, which includes a roughing cylinder. A roughing end cover is fixedly connected to the top of the roughing cylinder. It also includes a refining cylinder, and a refining end cover is fixedly connected to the top of the refining cylinder. An exhaust port communicating with the inside of the refining cylinder is fixedly arranged at the center of the refining end cover. Two connecting boxes are fixedly connected in an up-and-down arrangement between the roughing cylinder and the refining cylinder, and each connecting box communicates with the inside of the roughing cylinder and the refining cylinder. A plurality of groups of molecular sieve units are respectively and uniformly distributed in each of the roughing cylinder and the refining cylinder. A conveying component is arranged in the roughing cylinder and the refining cylinder, and feet are fixedly connected to the bottoms of the roughing cylinder and the refining cylinder. By arranging the molecular sieve units, it is possible to conveniently replace or adjust the positions of the molecular sieves with different reaction degrees, thereby ensuring that the reaction degrees are uniform everywhere during the nitrogen production process by adsorption of the molecular sieves, improving the nitrogen production efficiency, and enabling each molecular sieve unit to fully adsorb nitrogen, avoiding the waste of some molecular sieves.

Description

Technical Field

[0001] The invention belongs to the technical field of nitrogen production equipment, in particular to a high-efficiency nitrogen production adsorption cylinder. Background Art

[0002] A nitrogen generator is a device that uses air as raw material and uses physical methods to separate oxygen and nitrogen in it to obtain nitrogen. The adsorption tower is an indispensable part of the nitrogen generator. The adsorption tower uses the carbon molecular sieve to separate nitrogen and oxygen. This is mainly based on the different diffusion rates of the two gases on the surface of the carbon molecular sieve. The gas with a smaller diameter (oxygen) diffuses faster and enters more of the molecular sieve solid phase.

[0003] In the existing technology, a pressing device needs to be added to the adsorption tower to compress the molecular sieve to prevent the molecular sieve from being impacted. However, the existing pressing device is usually set as a fixed structure, and it is difficult to remix the particles in the molecular sieve at a later time. At the same time, since the gas passes through the molecular sieve from bottom to top, the gas first contacts the bottom of the particles inside the molecular sieve. Contacting only one surface for a long time will cause the adsorption efficiency of the molecular sieve to decrease.

[0004] The Chinese patent with the authorization announcement number CN213668593U discloses a special adsorption tower for a nitrogen generator with high efficiency adsorption, comprising a tower body, a molecular sieve layer provided in the tower body, a second plate layer and a first plate layer symmetrically provided at the bottom of the molecular sieve layer, a top cover provided at the top of the tower body, an air outlet pipe connected to the top cover, an air inlet pipe connected to the bottom of the tower body, a motor provided in the middle of the top of the first plate layer, an output shaft of the motor extending above the second plate layer and connected to a screw rod inserted into the interior of the molecular sieve layer, and a pressing device provided on the top cover. By adding a motor and a screw rod to the tower body, the particles in the molecular sieve can be remixed, and the particles in the molecular sieve can be fully mixed with the gas. At the same time, the pressing device that can drive the pressing plate to rise and fall can stop the pressing operation during stirring, so that the motor drives the screw rod to rotate, thereby improving the adsorption efficiency of the molecular sieve.

[0005] However, the above patent still has the following shortcomings:

[0006] 1. According to the description of the above patent, the above patent uses a screw rod to stir the molecular sieve so that the particles in the molecular sieve are remixed to ensure that the particles in the molecular sieve are fully mixed with the air. However, this method cannot accurately replace molecular sieves with different reaction degrees, and cannot truly achieve the effect of ensuring nitrogen production efficiency.

[0007] 2. In actual production, the ideal operating temperature of the nitrogen production process is usually between 20 and 40 degrees Celsius. If the ambient temperature is too low, the Brownian motion of the gas molecules will weaken, affecting the output and purity of the nitrogen. However, the above patent cannot guarantee the appropriate ambient temperature, which affects the nitrogen production effect and efficiency.

[0008] 3. In actual production, water vapor in the air will be adsorbed by the molecular sieve. The water vapor and oxygen molecules compete for the adsorption sites, resulting in a decrease in the adsorption capacity of the molecular sieve, affecting the nitrogen production effect and efficiency. Moreover, the above patent is difficult to reduce the moisture in the air, which affects the nitrogen production effect and efficiency. Summary of the Invention

[0009] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to ensure the quality and production efficiency of the final product by setting up a roughing cylinder and a roughing end cover and connecting the roughing cylinder and the roughing end cover with a first conduit, and performing roughing and refining separately during nitrogen production. By setting up a molecular sieve unit, it is convenient to replace or swap the positions of molecular sieves with different reaction degrees, thereby ensuring that the reaction degrees are uniform everywhere during the adsorption nitrogen production process, improving the nitrogen production efficiency, and enabling each molecular sieve unit to fully adsorb nitrogen, avoiding the waste of some molecular sieves. By setting up a heating box to heat the air and setting up a second conduit to cooperate with the heated air, the reaction temperatures in the roughing cylinder and the refining cylinder are ensured to be maintained at the optimal temperature, thereby ensuring the best nitrogen production efficiency. By setting up a condensation box, the water vapor mixed in the raw air can be condensed and dried, preventing excessive water vapor from entering the roughing cylinder and the refining cylinder and affecting the nitrogen production effect and efficiency.

[0010] In order to achieve the above object, the present invention provides the following technical solution: A high-efficiency nitrogen production adsorption cylinder, comprising:

[0011] A roughing cylinder, the top of the roughing cylinder is fixedly connected with a roughing end cover;

[0012] A refining cylinder, the top of the refining cylinder is fixedly connected with a refining end cover, and an exhaust port communicating with the inside of the refining cylinder is fixedly arranged at the center of the refining end cover;

[0013] Wherein, two connecting boxes are fixedly connected in an up-and-down arrangement between the roughing cylinder and the refining cylinder, each connecting box communicates with the inside of the roughing cylinder and the refining cylinder, multiple groups of molecular sieve units are evenly distributed in each of the roughing cylinder and the refining cylinder, a conveying component is arranged in the roughing cylinder and the refining cylinder, and feet are fixedly connected to the bottoms of the roughing cylinder and the refining cylinder.

[0014] Further, the molecular sieve unit includes a frame, each frame is closely attached to the inner walls of the roughing cylinder and the refining cylinder, the frames in the roughing cylinder are arranged at intervals, the frames in the refining cylinder are closely stacked, a cloth bag is fixedly connected to the inner ring of each frame, and molecular sieves are filled in each molecular sieve.

[0015] Furthermore, a framework is embedded and installed in each of the molecular sieves. Each framework is in a grid shape and is fixedly connected to the inner wall of the framework. At each intersection point of each framework, a rivet is fixedly connected. Both ends of each rivet pass through the molecular sieve and the cloth bag.

[0016] Furthermore, a set of rubber seals is fixedly arranged at the edge of each framework. Each seal is in close fit with the inner walls of the crude cylinder and the refined cylinder. The top surface of the frameworks stacked in the refined cylinder is flush with the bottom surface of the communication box located at a higher position. A pressure ring is slidably connected at the top inside the refined cylinder. The pressure ring can abut against the top surface of the stacked frameworks. The side wall of the pressure ring can shield and block the opening of the communication box located at a higher position. Two first electric cylinders are symmetrically and fixedly connected to the refined end cover. The extending end of each first electric cylinder passes through the refined end cover and is fixedly connected to the pressure ring.

[0017] Furthermore, the conveying component includes a guide sleeve. Two guide sleeves are respectively fixedly connected to the crude cylinder at the corresponding position of the communication box located at a higher position and to the refined cylinder at the corresponding position of the communication box located at a lower position. A push plate is slidably connected in each guide sleeve. Two groups of second electric cylinders are respectively arranged on the outer sides of the crude cylinder and the refined cylinder at the corresponding positions of the two push plates. The extending end of each second electric cylinder is fixedly connected to the corresponding push plate. A first bracket fixedly connected to the crude cylinder and the refined cylinder is fixedly connected to the outside of each second electric cylinder.

[0018] Furthermore, two groups of screw rods are respectively arranged on both sides inside the crude cylinder. Each group of screw rods includes two screw rods. Each screw rod is meshed with each framework inside the crude cylinder. Both ends of each group of screw rods extending out of the bottom of the crude cylinder are connected with a group of synchronous pulleys. A synchronous belt is connected in a transmission manner between each group of synchronous pulleys. A belt pulley cover is fixedly connected to the bottom surface of the crude cylinder at the corresponding position of each group of synchronous pulleys. A motor is fixedly connected to each belt pulley cover. The power output end of each motor is in a transmission connection with one end of the corresponding screw rod extending out of the belt pulley cover.

[0019] Furthermore, two second brackets are respectively fixedly connected to the outer walls of the crude cylinder and the refined cylinder. A condensation box is fixedly connected to the second bracket on the crude cylinder. A water collecting hopper is fixedly connected and communicated to the bottom of the condensation box. A plurality of condensation pipes are fixedly connected in the condensation box in a uniformly distributed manner. A cooler is fixedly connected to one side of the condensation box. The cooler is communicated with the end of each condensation pipe. An air inlet is fixedly connected and arranged at one end of the condensation box.

[0020] Further, a heating box is fixedly connected to the second bracket on the refining cylinder. A plurality of heating wires are fixedly connected in the heating box in a uniformly distributed manner. A heater is fixedly connected to the bottom of the heating box. The heater is connected to each heating wire in a communicating manner. A third conduit is connected between the condensation box and the heating box in a communicating manner.

[0021] Further, two groups of third brackets are respectively fixedly connected to the outer walls of the crude cylinder and the refining cylinder. A second conduit is fixedly connected between the two groups of third brackets. The second conduit is uniformly wound around the outer sides of the crude cylinder and the refining cylinder. The second conduit is connected to the heating box in a communicating manner. The bottom end of the second conduit is connected to the bottom of the crude cylinder in a communicating manner. A first conduit is connected between the top of the crude end cap and the bottom of the refining cylinder in a communicating manner.

[0022] In summary, compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] (1) By providing the crude cylinder and the crude end cap, and using the first conduit to connect the crude cylinder and the crude end cap in a communicating manner, roughing and refining are respectively carried out during nitrogen production, which is easy to ensure the quality and production efficiency of the finally produced nitrogen.

[0024] (2) By providing the molecular sieve unit, it is possible to conveniently replace or adjust the positions of the molecular sieves with different reaction degrees, thereby ensuring that the reaction degrees are uniform everywhere during the adsorption nitrogen production process, improving the nitrogen production efficiency, and enabling each molecular sieve unit to fully adsorb nitrogen, avoiding the waste of some molecular sieves.

[0025] (3) By providing the heating box to heat the air, and by providing the second conduit to cooperate with the heated air, the reaction temperatures in the crude cylinder and the refining cylinder are ensured to be maintained at the optimal temperature, thereby ensuring the optimal nitrogen production efficiency. By providing the condensation box, the water vapor mixed in the raw air can be condensed and dried, avoiding excessive water vapor from entering the crude cylinder and the refining cylinder and affecting the nitrogen production effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of this patent.

[0027] Figure 2 is a side view of this patent.

[0028] Figure 3 is Figure 2 a three-dimensional cross-sectional view at A-A in

[0029] Figure 4 is Figure 3 a partial enlarged view at B in

[0030] Figure 5 is an internal structure schematic diagram of this patent.

[0031] Figure 6 is Figure 5 The partial enlarged view at position C in

[0032] Figure 7 is the structural schematic diagram of the molecular sieve unit.

[0033] Figure 8 is the structural schematic diagram of the heating box, the condensation box and each conduit.

[0034] Explanation of reference numerals: Crude cylinder 10; Refined cylinder 11; Crude end cover 12; Refined end cover 13; Exhaust port 14; First electric drive cylinder 15; First bracket 16; Second electric drive cylinder 17; Push plate 18; Guide sleeve 19; Connecting box 20; Condensation box 21; Air inlet 22; Water collecting hopper 23; Temperature reducer 24; Second bracket 25; Heating box 26; Heater 27; First conduit 28; Second conduit 29; Third bracket 30; Support feet 31; Condensation pipe 32; Heating wire 33; Screw 34; Frame 35; Cloth bag 36; Rivet 37; Sealing ring 38; Molecular sieve 39; Skeleton 40; Pressure ring 41; Synchronous pulley 42; Synchronous belt 43; Belt pulley cover 44; Motor 45; Third conduit 46. Detailed implementation manners

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] As Figure 1 , Figure 2 Figure 3 shown, a high-efficiency nitrogen production adsorption cylinder includes a crude cylinder 10 and a refined cylinder 11. A crude end cover 12 is fixedly connected to the top of the crude cylinder 10, a refined end cover 13 is fixedly connected to the top of the refined cylinder 11, an exhaust port 14 is fixedly connected and communicated to the top of the refined end cover 13, a first conduit 28 is connected and communicated between the top of the crude end cover 12 and the bottom of the refined cylinder 11, two groups of third brackets 30 are respectively fixedly connected to the outer walls of the crude cylinder 10 and the refined cylinder 11, a second conduit 29 surrounding the outer sides of the crude cylinder 10 and the refined cylinder 11 is fixedly connected between the two groups of third brackets 30, the bottom end of the second conduit 29 is connected and communicated to the bottom of the crude cylinder 10, and support feet 31 are fixedly connected to the bottoms of the crude cylinder 10 and the refined cylinder 11.

[0037] By providing the crude cylinder 10 and the crude end cover 12 and connecting the crude cylinder 10 and the crude end cover 12 through the first conduit 28, roughing and refining are respectively carried out during nitrogen production, which can easily ensure the quality and production efficiency of the finally produced nitrogen.

[0038] As Figure 3 and Figure 8As shown, two second brackets 25 are fixedly connected to the outer walls of the crude cylinder 10 and the refined cylinder 11 respectively. A heating box 26 is fixedly connected to the second bracket 25 on the refined cylinder 11. A plurality of heating wires 33 are fixedly connected in the heating box 26 in a uniformly distributed manner. A heater 27 is fixedly connected to the bottom of the heating box 26. The heater 27 is connected in communication with the ends of each heating wire 33. The second conduit 29 is connected in communication with the heating box 26.

[0039] By arranging the heating box 26 to heat the air and arranging the second conduit 29 to cooperate with the heated air, the reaction temperature in the crude cylinder 10 and the refined cylinder 11 is ensured to be maintained at the optimal temperature, thereby ensuring the optimal nitrogen production efficiency.

[0040] As Figure 3 and Figure 8 shown, a condensation box 21 is fixedly connected to the second bracket 25 on the crude cylinder 10. A plurality of condensation tubes 32 are fixedly connected in the condensation box 21 in a uniformly distributed manner. A cooler 24 is fixedly connected to one side of the condensation box 21. The cooler 24 is connected in communication with the ends of each condensation tube 32. An air inlet 22 is connected and arranged at one end of the condensation box 21. A third conduit 46 is connected and arranged between the condensation box 21 and the heating box 26.

[0041] By arranging the condensation box 21, the water vapor mixed in the raw air can be condensed and dried, avoiding too much water vapor entering the crude cylinder 10 and the refined cylinder 11 and affecting the nitrogen production effect and efficiency.

[0042] As Figure 3 、 Figure 4 、 Figure 5 and Figure 7 shown, a plurality of frames 35 are respectively arranged in the crude cylinder 10 and the refined cylinder 11. The frames 35 in the crude cylinder 10 are arranged at intervals. The frames 35 in the refined cylinder 11 are closely stacked. A cloth bag 36 is fixedly connected to the inner ring of each frame 35. Each cloth bag 36 is filled with molecular sieves 39. A grid-shaped skeleton 40 is embedded and installed in each molecular sieve 39. A rivet 37 is fixedly connected to each intersection point of each skeleton 40. Each rivet 37 passes through the molecular sieve 39 and the cloth bag 36. A group of rubber seals 38 are arranged at the edges of each frame 35. Each seal 38 can be closely attached to the inner walls of the crude cylinder 10 and the refined cylinder 11.

[0043] By arranging the molecular sieve unit, it is convenient to replace or adjust the positions of the molecular sieves with different reaction degrees, thereby ensuring that the reaction degrees are uniform everywhere during the adsorption nitrogen production process of the molecular sieves, improving the nitrogen production efficiency, and enabling each molecular sieve unit to fully adsorb nitrogen and avoiding the waste of some molecular sieves.

[0044] By providing the cloth bag 36, rivets 37, and the framework 40, the molecular sieve 39 can be wrapped and fixed, and more stable support can be provided for the molecular sieve 39, ensuring the stability of each molecular sieve 39 during the process of replacing the molecular sieve unit.

[0045] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, two communication boxes 20 are fixedly connected in an up-and-down arrangement between the crude cylinder 10 and the refined cylinder 11. Both communication boxes 20 are in internal communication with the crude cylinder 10 and the refined cylinder 11. Each communication box 20 can accommodate the passage of the framework 35. Two guide sleeves 19 are fixedly connected to the outer walls of the crude cylinder 10 and the refined cylinder 11 at positions corresponding to the two communication boxes 20 respectively. Push plates 18 are slidably connected in the two guide sleeves 19 respectively. Multiple groups of first brackets 16 are fixedly connected to the outer walls of the crude cylinder 10 and the refined cylinder 11 at positions corresponding to each push plate 18. A second electric cylinder 17 is fixedly connected in each group of first brackets 16. The extending end of each second electric cylinder 17 is fixedly connected to the push plate 18.

[0046] As Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, two groups of screw rods 34 are rotatably connected to both sides inside the crude cylinder 10 respectively. Each group of screw rods 34 is meshed with each framework 35 inside the crude cylinder 10. One end of each group of screw rods 34 extending out of the bottom of the crude cylinder 10 is drivingly connected to a group of synchronous pulleys 42. A synchronous belt 43 is drivingly connected between each group of synchronous pulleys 42. A belt pulley cover 44 is fixedly connected to the bottom of the crude cylinder 10 at a position corresponding to each group of synchronous pulleys 42. A motor 45 is fixedly connected to each belt pulley cover 44. The power output end of each motor 45 is drivingly connected to the end of the corresponding screw rod 34 extending out of the belt pulley cover 44.

[0047] By providing the screw rods 34 and each push plate 18, the molecular sieve units inside the crude cylinder 10 and the refined cylinder 11 can be replaced unidirectionally, enabling the reaction-incomplete molecular sieve units originally at a high position to be replaced to a low position so that they can react sufficiently subsequently, and the molecular sieve units with weakened adsorption capacity originally at a low position to be replaced to a high position, ensuring that the molecular sieves everywhere inside the crude cylinder 10 and the refined cylinder 11 can achieve a uniform and sufficient reaction effect, and guaranteeing the nitrogen production effect and efficiency.

[0048] As Figure 1 , Figure 3 and Figure 5As shown, the top surface of the stacked frames 35 in the refining cylinder 11 is flush with the bottom surface of the upper communication box 20. A pressing ring 41 is slidably connected to the top inside the refining cylinder 11. The pressing ring 41 can abut against the top surface of the stacked frames 35, and the side wall of the pressing ring 41 can shield and block the opening of the upper communication box 20. Two first electric cylinders 15 are symmetrically and fixedly connected to the refining end cover 13. The extending end of each first electric cylinder 15 passes through the refining end cover 13 and is fixedly connected to the pressing ring 41.

[0049] By providing the pressing ring 41, while compacting the frames 35, the communication box 20 is blocked, preventing the unrefined gas in the crude cylinder 10 from mixing into the refining cylinder 11. And because the pressing ring 41 compacts the frames 35 in the refining cylinder 11, the sealing rings 38 between the frames 35 are tightly squeezed, forming a sealed blockage of the bottom communication box 20, further preventing gas from mixing into the refining cylinder 11.

[0050] In this embodiment, initially, the operator connects the power supply and control system of this patent, connects the air inlet 22 to the air supply system, and connects the exhaust port 14 to the collection system. At this time, the operator starts the cooler 24 and the heater 27 through the control system to pre-cool the condensation box 21 and pre-heat the heating box 26 respectively.

[0051] When nitrogen is produced, the raw air enters the condensation box 21 from the air inlet 22. When the air passes through the low-temperature condensation pipe 32, the water vapor in the air condenses on the condensation pipe 32, thus achieving the effect of reducing the moisture in the air. Thereby, it avoids the problem that during the adsorption nitrogen production process, the water vapor enters the molecular sieve and occupies the adsorption sites, resulting in a reduction in the adsorption capacity of the molecular sieve for oxygen molecules and affecting the nitrogen production effect and efficiency.

[0052] Subsequently, the air after removing moisture enters the heating box 26 through the third conduit 46, and the heating wire 33 is used to heat the air again, making the molecules in the air active, which is beneficial for the molecular sieve to adsorb the oxygen molecules in the air. And the heated air enters the second conduit 29, so that the crude cylinder 10 and the refining cylinder 11 can also maintain the optimal reaction temperature, avoiding the problem that the Brownian motion of gas molecules weakens due to too low temperature, resulting in a reduction in the adsorption rate and affecting the nitrogen production and purity.

[0053] Subsequently, the gas enters the crude cylinder 10 through the second conduit 29. The gas flows from the bottom to the top of the crude cylinder 10. Part of it flows through the gaps of the screw 34, and part of it passes through each molecular sieve unit in the crude cylinder 10 for the rough purification of nitrogen. The air that has been roughly purified after flowing through the crude cylinder 10 enters the refined cylinder 11 through the first conduit 28 and flows from the bottom to the top of the refined cylinder 11. During this process, the molecular sieve units in the refined cylinder 11 are closely stacked and fitted. Due to the extrusion of the pressure ring 41, the seals 38 are squeezed and sealed between each other, and each seal 38 is closely fitted with the inner wall of the refined cylinder 11, forming a sealed space. The roughly purified air can only pass through the stacked molecular sieve units, and the stacked molecular sieve units carry out the refining of nitrogen to ensure the purity of nitrogen. The final product is discharged and collected from the exhaust port 14.

[0054] After a certain period of nitrogen production work, each molecular sieve 39 at the bottom of the crude cylinder 10 and the refined cylinder 11, because it first contacts the air and bears most of the adsorption nitrogen production working pressure, its adsorption nitrogen production capacity will decline. And each molecular sieve 39 above the crude cylinder 10 and the refined cylinder 11 bears a small working pressure, and its adsorption nitrogen production capacity is still good.

[0055] At this time, the operator stops the nitrogen production work. Through the control system, the first electric cylinder 15 is restricted to contract, so that the pressure ring 41 no longer squeezes the stacked molecular sieve units and no longer blocks the communication box 20. At this time, the two motors 45 are synchronously controlled. Through the transmission connection of the synchronous pulley 42 and the synchronous belt 43, the two groups of screws 34 are driven to rotate synchronously, lifting each frame 35 in the crude cylinder 10 upward until the highest frame 35 moves to the corresponding position of the push plate 18 at a high position and then stops.

[0056] Subsequently, the second electric cylinder 17 at a high position is controlled to retract, then the push plate 18 at a high position is pulled to push the molecular sieve units at a high position in the crude cylinder 10 into the communication box 20 and finally stack them on the molecular sieve units in the refined cylinder 11. Subsequently, the push plate 18 at a high position is controlled to reset. Then, the second electric cylinder 17 at a low position is controlled to retract to pull the push plate 18 at a low position to push the molecular sieve unit at the bottom of the refined cylinder 11 into the communication box 20 and finally enter the bottom of the crude cylinder 10. And when entering the crude cylinder 10, the two sides of the molecular sieve unit just engage with the two groups of screws 34. Subsequently, the push plate 18 at the bottom resets, completing one replacement process. The above replacement process is repeated multiple times until the positions of the molecular sieve units originally at high and low positions are swapped with each other. The first electric cylinder 15 is re-controlled to extend so that the pressure ring 41 presses the molecular sieve units in the refined cylinder 11 tightly, and the nitrogen production work continues to ensure the effect and efficiency of nitrogen production.

[0057] The above-mentioned first electric drive cylinder 15, second electric drive cylinder 17, cooler 24, heater 27, and motor 45 are mature existing technologies and will not be elaborated herein.

[0058] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but rather use the difference in functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "comprising but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0059] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0060] The above description shows and describes several preferred embodiments of the present application. However, as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present application shall fall within the protection scope of the appended claims of the present application.

Claims

1. An efficient nitrogen production adsorption cylinder, characterized in that, Comprising: A crude cylinder (10), with a crude end cap (12) fixedly connected to the top of the crude cylinder (10); A refined cylinder (11), with a refined end cap (13) fixedly connected to the top of the refined cylinder (11). An exhaust port (14) communicating with the inside of the refined cylinder (11) is fixedly provided at the center of the refined end cap (13); Among them, two connecting boxes (20) are fixedly connected in an up-and-down arrangement between the crude cylinder (10) and the refined cylinder (11). Each connecting box (20) communicates with the inside of the crude cylinder (10) and the refined cylinder (11). Multiple groups of molecular sieve units are evenly distributed inside each of the crude cylinder (10) and the refined cylinder (11). A conveying component is arranged inside the crude cylinder (10) and the refined cylinder (11). Support feet (31) are fixedly connected to the bottoms of the crude cylinder (10) and the refined cylinder (11); The conveying component includes guide sleeves (19). Two guide sleeves (19) are respectively fixedly connected to the corresponding positions of the crude cylinder (10) at the position corresponding to the connecting box (20) at a higher position and the refined cylinder (11) at the position corresponding to the connecting box (20) at a lower position. A push plate (18) is slidably connected inside each guide sleeve (19). Two groups of second electric cylinders (17) are respectively arranged on the outer sides of the crude cylinder (10) and the refined cylinder (11) at the corresponding positions of the two push plates (18). The extending end of each second electric cylinder (17) is fixedly connected to the corresponding push plate (18). A first bracket (16) fixedly connected to the crude cylinder (10) and the refined cylinder (11) is fixedly connected to the outside of each second electric cylinder (17); Two groups of screw rods (34) are respectively arranged on both sides inside the crude cylinder (10). Each group of screw rods (34) includes two screw rods (34). Each screw rod (34) is meshed with each frame (35) inside the crude cylinder (10). The two ends of each group of screw rods (34) extending out of the bottom of the crude cylinder (10) are connected with a group of synchronous pulleys (42). A synchronous belt (43) is connected in transmission between each group of synchronous pulleys (42). A belt pulley cover (44) is fixedly connected to the bottom surface of the crude cylinder (10) at the corresponding position of each group of synchronous pulleys (42). A motor (45) is fixedly connected to each belt pulley cover (44). The power output end of each motor (45) is in transmission connection with one end of the corresponding screw rod (34) extending out of the belt pulley cover (44); 2. An efficient nitrogen production adsorption cylinder according to claim 1, characterized in that, The molecular sieve unit includes a frame (35). Each frame (35) is in close fit with the inner walls of the crude cylinder (10) and the refined cylinder (11). The frames (35) inside the crude cylinder (10) are arranged at intervals. The frames (35) inside the refined cylinder (11) are closely stacked. A cloth bag (36) is fixedly connected to the inner ring of each frame (35). Molecular sieves (39) are filled in each cloth bag (36).

3. An efficient nitrogen production adsorption cylinder according to claim 2, characterized in that, A framework (40) is embedded and installed in each molecular sieve (39). Each framework (40) is grid-shaped. Each framework (40) is fixedly connected to the inner wall of the frame (35). At each intersection of each framework (40), a rivet (37) is fixedly connected. Both ends of each rivet (37) pass through the molecular sieve (39) and the cloth bag (36).

4. An efficient nitrogen production adsorption cylinder according to claim 2, characterized in that, A set of rubber seals (38) are fixedly arranged at the edges of each frame (35). Each seal (38) is in close fit with the inner walls of the roughing cylinder (10) and the refining cylinder (11). The top surface of the frames (35) stacked in the refining cylinder (11) is flush with the bottom surface of the communication box (20) located at a higher position. A pressing ring (41) is slidably connected at the top inside the refining cylinder (11). The pressing ring (41) can abut against the top surface of the stacked frames (35). The side wall of the pressing ring (41) can shield and block the opening of the communication box (20) located at a higher position. Two first electric cylinders (15) are symmetrically and fixedly connected to the refining end cover (13). The extending end of each first electric cylinder (15) passes through the refining end cover (13) and is fixedly connected to the pressing ring (41).

5. An efficient nitrogen production adsorption cylinder according to claim 1, characterized in that, Two second brackets (25) are respectively fixedly connected to the outer walls of the roughing cylinder (10) and the refining cylinder (11). A condensation box (21) is fixedly connected to the second bracket (25) on the roughing cylinder (10). A water collecting hopper (23) is fixedly connected and communicated to the bottom of the condensation box (21). A plurality of condensation tubes (32) are evenly and fixedly connected in the condensation box (21). A cooler (24) is fixedly connected to one side of the condensation box (21). The cooler (24) is communicated with the end of each condensation tube (32). An air inlet (22) is fixedly connected and provided at one end of the condensation box (21).

6. The high-efficiency nitrogen production adsorption cylinder according to claim 5, characterized in that, A heating box (26) is fixedly connected to the second bracket (25) on the refining cylinder (11). A plurality of heating wires (33) are evenly and fixedly connected in the heating box (26). A heater (27) is fixedly connected to the bottom of the heating box (26). The heater (27) is communicated with each heating wire (33). A third conduit (46) is connected and communicated between the condensation box (21) and the heating box (26).

7. An efficient nitrogen production adsorption cylinder according to claim 6, characterized in that, Two groups of third brackets (30) are respectively fixedly connected to the outer walls of the roughing cylinder (10) and the refining cylinder (11). A second conduit (29) is fixedly connected between the two groups of third brackets (30). The second conduit (29) evenly surrounds the outer sides of the roughing cylinder (10) and the refining cylinder (11). The second conduit (29) is communicated with the heating box (26). The bottom end of the second conduit (29) is communicated with the bottom of the roughing cylinder (10). A first conduit (28) is connected and communicated between the top of the roughing end cover (12) and the bottom of the refining cylinder (11).

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