A nitrogen generator capable of pre-purifying air

Abstract

The invention discloses a nitrogen making machine capable of pre-purifying air, and relates to the technical field of nitrogen making machines. The nitrogen making machine capable of pre-purifying air comprises a base and a heating tube, a circulation tank 1 is fixedly installed on the top of the base, a circulation tank 2 is fixedly installed on the top of the base, a control console is fixedly installed on the top of the base, a filter tube is fixedly penetrated through the bottom of the circulation tank 1, a pressure measuring tube is fixedly penetrated through the circumferential surface of the circulation tank 1, a purification box is fixedly installed on the base, and the purification device comprises a motor, a connecting pipe, an air inlet pipe, a carbon filter plate, an adsorption cylinder, a sliding plate, a sieve plate, a baffle and a button. The nitrogen making machine capable of pre-purifying air passes air through the carbon filter plate, and the carbon filter plate filters bacteria and odors in the air and intercepts them on its surface, so as to achieve pre-purification of the air, ensure that the quality of air entering the nitrogen making machine meets the requirements, and thus obtain nitrogen with higher purity.

Description

Technical Field

[0001] The invention relates to the technical field of nitrogen generators, in particular to a nitrogen generator capable of pre-purifying air. Background Art

[0002] A nitrogen generator is a device that separates nitrogen from the air and concentrates or purifies it to the required concentration. It is widely used in industrial fields that require high-purity nitrogen.

[0003] The patent with the patent announcement number CN214780769U relates to a nitrogen generator base that can pre-purify the air. The top of the base is connected to an air purifier, and a gas storage tank is placed on the top of the base. The outside of the air purifier is connected to an air intake pipe, and the top of the base is connected to an air dust treatment chamber. The patent is provided with a driving motor, a rotating rod, a mounting cylinder, a dust filter plate, a knocking block, a piercing rod and a reset spring, which can effectively filter out the dust-containing air in the workshop and clean up the dust accumulated on the dust filter plate, thereby improving the air purification efficiency of the nitrogen generator.

[0004] In the above patent, by setting a driving motor, a rotating rod, a mounting cylinder, a dust filter plate, a knocking block, a piercing rod and a reset spring, the air containing dust in the workshop can be effectively filtered out. However, the filter plate will cause blockage under long-term operation, thereby affecting the permeability and filtering effect of the filter plate. For this reason, a nitrogen generator that can pre-purify the air and has the function of reminding the staff to replace the filter plate in time is designed. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a nitrogen generator capable of pre-purifying air, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a nitrogen generator capable of pre-purifying air.

[0007] According to the above technical scheme, the base and the heating tube include a purification device, a circulation tank 1 is fixedly installed on the top of the base, a circulation tank 2 is fixedly installed on the top of the base, a control console is fixedly installed on the top of the base, a filter tube is fixedly penetrated through the bottom of the circulation tank 1, a pressure measuring tube is fixedly penetrated through the circumferential surface of the circulation tank 1, an oxygen supply tube is fixedly penetrated through the top of the circulation tank 1, a nitrogen supply tube is fixedly penetrated through the bottom of the circulation tank 2, a purification box is fixedly installed on the base, and the purification device includes a motor, a connecting pipe, an air inlet pipe, a carbon filter plate, an adsorption cylinder, a sliding plate, a sieve plate, a baffle and a button, the motor is fixedly penetrated through the top of the purification box, the The connecting pipe is fixedly mounted on the surface of the purification box, the air inlet pipe is fixedly mounted on the end of the connecting pipe away from the purification box, the carbon filter plate is fixedly mounted on the surface of the purification box, the adsorption cylinder is fixedly mounted on the surface of the carbon filter plate, a sliding groove is opened on the circumferential surface of the connecting pipe, the sliding plate is slidably mounted on the inner wall of the sliding groove, the sieve plate is fixedly mounted on the end of the sliding plate away from the sliding groove, the baffle is fixedly mounted on the surface of the sliding plate, and the button is arranged on the inner wall of the sliding groove, so as to realize the pre-purification of the air and ensure that the quality of the air entering the nitrogen generator meets the requirements, so as to obtain nitrogen with higher purity and reduce the corrosion and wear of these harmful impurities on the key components inside the nitrogen generator.

[0008] According to the above technical solution, an air inlet is opened on the surface of the purification box, the oxygen supply pipe is fixedly passed through the top of the circulation tank 2, and the button is electrically connected to the control console, thereby avoiding equipment wear, blockage or damage due to failure to replace the sieve plate in time, thereby affecting the operating efficiency and life of the equipment.

[0009] According to the above technical solution, the filter tube is fixedly passed through the surface of the purification box, the pressure measuring tube is fixedly passed through the circumferential surface of the circulation tank 2, and the pressure measuring tube is fixedly passed through the bottom of the console to prevent these impurities from damaging the equipment, thereby extending the service life of the nitrogen generator and reducing maintenance costs.

[0010] According to the above technical scheme, the filtering device and the drying device are included, and the filtering device includes a rotating shaft, a rotating disk, a bevel plate, a fan blade, a scraper 1, a carbon molecular sieve, a heat insulation filter plate, a toothed disk, a rotating disk, a tooth block, a connecting plate and a scraper 2. The rotating shaft is fixedly mounted on the output end of the motor, the rotating disk is fixedly mounted on the circumferential surface of the rotating shaft, the bevel plate is fixedly mounted on the top of the rotating disk, the fan blade is fixedly mounted on the bottom of the rotating disk, the scraper 1 is slidably mounted on the circumferential surface of the rotating shaft, the carbon molecular sieve is fixedly mounted on the inner wall of the purification box, and the heat insulation filter plate is slidably mounted on the inner wall of the purification box. The first scraper is movably installed on the inner wall of the purification box, the toothed disc is fixedly installed on the circumferential surface of the rotating shaft, the rotating disc is slidably installed on the circumferential surface of the rotating shaft, the tooth block is fixedly installed on the inner wall of the rotating disc, the connecting plate is rotatably installed on the circumferential surface of the rotating shaft, and the scraper 2 is fixedly installed on the circumferential surface of the rotating disc, which avoids the carbon molecular sieve being blocked and unable to adsorb and degrade oxygen well, effectively removes the accumulation in the carbon molecular sieve, restores its adsorption performance, improves its regeneration efficiency, maintains the long-term stable operation of the equipment, and helps to maintain the efficient operation of the carbon molecular sieve.

[0011] According to the above technical solution, a telescopic elastic rod is fixedly installed on the surface of the thermal insulation filter plate, the free end of the telescopic elastic rod is fixedly connected to the connecting plate, the surface of the beveled plate is set as arc surface 1, and the rotating disk is rotatably connected to the bottom of the thermal insulation filter plate to restore the permeability of the thermal insulation filter plate and ensure that the filtering effect is not affected, thereby improving the air purification efficiency.

[0012] According to the above technical solution, the tooth block is meshed with the tooth disc, and the scraper plate is slidably connected with the carbon molecular sieve. By cleaning the filter plate, it can be ensured that the filtration system can continuously and effectively remove dust from the air.

[0013] According to the above technical scheme, the drying device includes a drying box, a roller one, a rotating rod, a roller two, a fixed plate, a stirring plate, an air intake cylinder, a separation pipe, a separation cylinder, a water tank, a fixed ring, a rotating plate and a drainage pipe. The drying box is fixedly installed on the inner wall of the purification box, the roller one is fixedly installed on the circumferential surface of the rotating shaft, the rotating rod is fixedly installed on the bottom of the scraper two, the roller two is rotatably installed on the circumferential surface of the rotating rod, the fixed plate is fixedly installed on the circumferential surface of the roller two, the stirring plate is fixedly installed on the surface of the fixed plate, the air intake cylinder is fixedly installed on the bottom of the drying box, the separation pipe is fixedly installed on the circumferential surface of the air intake cylinder, the separation cylinder is fixedly installed on one end of the separation tube away from the purification box, the water tank is fixedly installed on the bottom of the air intake cylinder, the fixed ring is fixedly installed on the circumferential surface of the rotating shaft, the rotating plate is fixedly installed on the circumferential surface of the fixed ring, and the drainage pipe is fixedly installed on the circumferential surface of the water tank, which can help the dry particles to be more evenly distributed in the filter medium or in the air flow, and enhance the contact effect between the dry particles and the air pollutants.

[0014] According to the above technical solution, the surface of the water tank is set to arc surface 2, the drainage pipe is fixedly passed through the surface of the purification box, and the roller 1 is in contact with the roller 2. By discharging water in time, it is avoided that the water interferes with the subsequent nitrogen separation process, thereby improving the purity of the nitrogen.

[0015] The present invention provides a nitrogen generator capable of pre-purifying air, which has the following beneficial effects: (1) The nitrogen generator that can pre-purify the air, through the staff to connect the pipeline to the air inlet pipe, the unfiltered air enters the interior of the connecting pipe through the air inlet pipe, the sieve plate filters the impurities and large dust particles in the air and intercepts them on its surface when the air passes through, then the air passes through the surface of the adsorption cylinder, smaller dust and impurities will be adsorbed on its surface, then the air passes through the carbon filter plate, the carbon filter plate filters the bacteria and odor in the air and intercepts them on its surface, to achieve pre-purification of the air, to ensure that the air quality entering the nitrogen generator meets the requirements, so as to obtain higher purity nitrogen, when the sieve plate is blocked by impurities and large dust particles, it will move away from the air inlet pipe under the air pressure, the button is triggered by the sliding plate to transmit the signal to the inside of the console, informing the staff that the sieve plate needs to be replaced, avoiding the wear, blockage or damage of the equipment due to the failure to replace the sieve plate in time, thereby affecting the operating efficiency and life of the equipment.

[0016] (2) The nitrogen generator capable of pre-purifying air drives the fan blades to rotate by rotating the turntable. The fan blades rotate to pump air toward the heat-insulating filter plate. At the same time, the turntable rotates and the bevel plate rotates. The bevel plate rotates to contact and squeeze the scraper plate 1 to move upward. The scraper plate 1 moves upward to scrape off dust and impurities on the surface of the carbon molecular sieve, thereby preventing the carbon molecular sieve from being blocked and unable to adsorb and degrade oxygen. The accumulated substances in the carbon molecular sieve are effectively removed to restore its adsorption performance. The rotation of the toothed disc drives the rotation of the rotating disc. The rotation of the rotating disc drives the second scraper plate to rotate. At the same time, the second scraper plate rotates to scrape off impurities and dust that block the heat-insulating filter plate, thereby restoring the permeability of the heat-insulating filter plate and ensuring that the filtering effect is not affected, thereby improving the air purification efficiency.

[0017] (3) The nitrogen generator capable of pre-purifying air has roller one in contact with roller two. Roller two moves and rotates under the action of roller one. At the same time, the rotation of roller two drives the fixed plate to rotate. The rotation of the fixed plate drives the stirring plate to rotate with roller two as the center. The rotation of the stirring plate stirs the dry particles inside the drying box, which can help the dry particles to be more evenly distributed in the filter medium or in the air flow, thereby enhancing the contact effect between the dry particles and air pollutants. If the dry particles are not effectively stirred, they may accumulate in certain areas, resulting in reduced filtration efficiency. The rotation of the fixed ring drives the rotating plate to rotate. The rotating plate rotates to sweep the moisture inside the water tank into the inside of the drainage pipe and discharge it. The moisture in the air will affect the working efficiency of the nitrogen generator and the purity of the nitrogen. By discharging the moisture in time, it is avoided that the moisture interferes with the subsequent nitrogen separation process, thereby improving the purity of the nitrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall internal structure of the present invention; Figure 3 It is a schematic diagram of the positional relationship between the air intake cylinder and the separation pipe of the present invention; Figure 4 It is a schematic structural diagram of the positional relationship between the connecting pipes of the present invention; Figure 5 It is a schematic structural diagram of the positional relationship between the bevel plate and the scraper plate of the present invention; Figure 6 This is a schematic diagram of the positional relationship between the heat-insulating filter plate and the scraper plate 2 of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of the middle part is enlarged; Figure 8 This is a schematic diagram of the positional relationship between the first roller and the second roller of the present invention; Fig. 9 For the present invention Figure 8 The enlarged schematic diagram of the structure part B in the middle; Fig.10 It is a schematic structural diagram of the positional relationship between the water tank and the rotating plate of the present invention.

[0019] In the figure: 1, base; 2, circulation tank 1; 3, circulation tank 2; 4, control console; 51, filter tube; 52, pressure measuring tube; 53, oxygen supply tube; 54, nitrogen supply tube; 55, heating tube; 6, purification box; 71, motor; 72, connecting pipe; 73, air intake pipe; 74, carbon filter plate; 75, adsorption cylinder; 76, sliding plate; 77, sieve plate; 78, baffle; 79, button; 81, shaft; 82, turntable; 83, bevel plate; 84, fan blade; 85, scraper Plate 1; 86, carbon molecular sieve; 87, heat insulation filter plate; 88, toothed disc; 89, rotating disc; 810, tooth block; 811, connecting plate; 812, telescopic elastic rod; 813, scraper 2; 91, drying box; 92, roller 1; 93, rotating rod; 94, roller 2; 95, fixed plate; 96, stirring plate; 97, air inlet cylinder; 98, separation tube; 99, separation tube; 910, water tank; 911, fixed ring; 912, rotating plate; 913, drainage pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 10An embodiment of the present invention includes a base 1 and a heating tube 55, including a purification device, a circulation tank 1 2 is fixedly installed on the top of the base 1, a circulation tank 2 3 is fixedly installed on the top of the base 1, a control console 4 is fixedly installed on the top of the base 1, a filter tube 51 is fixedly penetrated through the bottom of the circulation tank 2, a pressure measuring tube 52 is fixedly penetrated through the circumferential surface of the circulation tank 2, an oxygen delivery tube 53 is fixedly penetrated through the top of the circulation tank 2, a nitrogen delivery tube 54 is fixedly penetrated through the bottom of the circulation tank 2 3, a purification box 6 is fixedly installed on the base 1, and the purification device includes a motor 71, a connecting pipe 72, an air inlet pipe 73, a carbon filter plate 74, an adsorption cylinder 75, a sliding plate 76, a sieve plate 77, a baffle 78 and a button 79, and the motor 71 is fixedly penetrated The top of the purification box 6 is passed through, and the connecting pipe 72 is fixedly mounted on the surface of the purification box 6, the air inlet pipe 73 is fixedly mounted on the end of the connecting pipe 72 away from the purification box 6, the carbon filter plate 74 is fixedly mounted on the surface of the purification box 6, the adsorption cylinder 75 is fixedly mounted on the surface of the carbon filter plate 74, and the circumferential surface of the connecting pipe 72 is provided with a sliding groove, the sliding plate 76 is slidably mounted on the inner wall of the sliding groove, the sieve plate 77 is fixedly mounted on the end of the sliding plate 76 away from the sliding groove, the baffle 78 is fixedly mounted on the surface of the sliding plate 76, and the button 79 is arranged on the inner wall of the sliding groove. After the sieve plate 77 is blocked by impurities and large particles of dust, it will move in the direction away from the air inlet pipe 73 under the air pressure, and at the same time, the movement of the sieve plate 77 drives the sliding plate 76 to move.

[0022] An air inlet is provided on the surface of the purification box 6, the oxygen supply pipe 53 is fixedly passed through the top of the circulation tank 23, the button 79 is electrically connected to the console 4, the sliding plate 76 moves close to and contacts the button 79, and the button 79 is triggered by the sliding plate 76 to transmit the signal into the interior of the console 4.

[0023] The filter tube 51 is fixedly passed through the surface of the purification box 6, the pressure measuring tube 52 is fixedly passed through the circumferential surface of the circulation tank 2 3, and the pressure measuring tube 52 is fixedly passed through the bottom of the control console 4 to ensure that the quality of air entering the nitrogen generator meets the requirements, thereby obtaining nitrogen with higher purity.

[0024] When this embodiment is working: when the staff connects the pipeline to the air inlet pipe 73, the unfiltered air enters the interior of the connecting pipe 72 through the air inlet pipe 73. While the air passes through, the sieve plate 77 filters the impurities and large dust particles in the air and intercepts them on its surface. Then the air passes through the surface of the adsorption cylinder 75, and smaller dust and impurities are adsorbed on its surface. Then the air passes through the carbon filter plate 74, and the carbon filter plate 74 filters the bacteria and odor in the air and intercepts them on its surface, so as to achieve pre-purification of the air and ensure that the air quality entering the nitrogen generator meets the requirements, thereby obtaining higher purity nitrogen and reducing the corrosion and wear of these harmful impurities on the key components inside the nitrogen generator, thereby extending the life of the nitrogen generator. The service life of the equipment is prolonged and the maintenance cost is reduced. When the sieve plate 77 is blocked by impurities and large particles of dust, it will move away from the air inlet pipe 73 under the air pressure. At the same time, the movement of the sieve plate 77 drives the sliding plate 76 to move. The sliding plate 76 moves close to and contacts the button 79. The button 79 is triggered by the sliding plate 76 to transmit a signal to the inside of the console 4, informing the staff that the sieve plate 77 needs to be replaced, thereby avoiding equipment wear, blockage or damage due to failure to replace the sieve plate 77 in time, thereby affecting the operating efficiency and life of the equipment. When the sieve plate 77 is replaced in time, these impurities can be prevented from damaging the equipment, thereby extending the service life of the nitrogen generator and reducing maintenance costs.

[0025] See also Figure 1-Figure 10 On the basis of the above embodiment, another embodiment of the present invention includes a filtering device and a drying device, the filtering device includes a rotating shaft 81, a rotating disk 82, a bevel plate 83, a fan blade 84, a scraper 85, a carbon molecular sieve 86, a heat insulation filter plate 87, a toothed disk 88, a rotating disk 89, a tooth block 810, a connecting plate 811 and a scraper 813, the rotating shaft 81 is fixedly installed at the output end of the motor 71, the rotating disk 82 is fixedly installed on the circumferential surface of the rotating shaft 81, the bevel plate 83 is fixedly installed on the top of the rotating disk 82, the fan blade 84 is fixedly installed on the bottom of the rotating disk 82, and the scraper 85 is slidably installed. It is mounted on the circumferential surface of the rotating shaft 81, the carbon molecular sieve 86 is fixedly mounted on the inner wall of the purification box 6, the heat insulation filter plate 87 is slidably mounted on the inner wall of the purification box 6, the toothed disc 88 is fixedly mounted on the circumferential surface of the rotating shaft 81, the rotating disc 89 is slidably mounted on the circumferential surface of the rotating shaft 81, the tooth block 810 is fixedly mounted on the inner wall of the rotating disc 89, the connecting plate 811 is rotatably mounted on the circumferential surface of the rotating shaft 81, the scraper 2 813 is fixedly mounted on the circumferential surface of the rotating disc 89, the rotation of the rotating disc 89 drives the scraper 2 813 to rotate, and at the same time, the scraper 2 813 rotates to scrape off the impurities and dust that block the heat insulation filter plate 87.

[0026] A telescopic elastic rod 812 is fixedly installed on the surface of the heat insulation filter plate 87, and the free end of the telescopic elastic rod 812 is fixedly connected to the connecting plate 811. The surface of the bevel plate 83 is set as an arc surface. The rotating disk 89 is rotatably connected to the bottom of the heat insulation filter plate 87. The movement of the heat insulation filter plate 87 drives the rotating disk 89 to move. When the rotating disk 89 moves under the action of the heat insulation filter plate 87, it will engage with the toothed disk 88.

[0027] The tooth block 810 meshes with the toothed disc 88, the scraper 85 is slidably connected with the carbon molecular sieve 86, the rotation of the rotating shaft 81 drives the toothed disc 88 to rotate, and the rotation of the toothed disc 88 drives the rotating disc 89 to rotate.

[0028] The drying device includes a drying box 91, a roller 1 92, a rotating rod 93, a roller 2 94, a fixed plate 95, a stirring plate 96, an air inlet tube 97, a separation tube 98, a separation tube 99, a water tank 910, a fixed ring 911, a rotating plate 912 and a drainage pipe 913. The drying box 91 is fixedly mounted on the inner wall of the purification box 6, the roller 1 92 is fixedly mounted on the circumferential surface of the rotating shaft 81, the rotating rod 93 is fixedly mounted on the bottom of the scraper 2 813, the roller 2 94 is rotatably mounted on the circumferential surface of the rotating rod 93, the fixed plate 95 is fixedly mounted on the circumferential surface of the roller 2 94, and the stirring plate 96 is fixedly mounted on the surface of the fixed plate 95 The air inlet cylinder 97 is fixedly installed at the bottom of the drying box 91, the separation tube 98 is fixedly installed through the circumferential surface of the air inlet cylinder 97, the separation cylinder 99 is fixedly installed at the end of the separation tube 98 away from the purification box 6, the water tank 910 is fixedly installed at the bottom of the air inlet cylinder 97, the fixed ring 911 is fixedly installed on the circumferential surface of the rotating shaft 81, the rotating plate 912 is fixedly installed on the circumferential surface of the fixed ring 911, and the drainage pipe 913 is fixedly installed through the circumferential surface of the water tank 910. The rotation of the fixed ring 911 drives the rotating plate 912 to rotate, and the rotating plate 912 rotates to sweep the moisture inside the water tank 910 into the inside of the drainage pipe 913 and discharge it.

[0029] The surface of the water tank 910 is set to be an arc surface 2, the drainage pipe 913 is fixed and passes through the surface of the purification box 6, the roller 1 92 is in contact with the roller 2 94, and the air will rotate at a high speed between the air intake cylinder 97 and the separation cylinder 99 until it reaches the inside of the water tank 910, and the moisture in the air is separated inside the water tank 910.

[0030] When the present embodiment is working: when the air after preliminary purification or purification enters the interior of the purification box 6 through the air inlet, the carbon molecular sieve 86, due to its greater instantaneous affinity for oxygen molecules, will absorb a large amount of oxygen and degrade it quickly, thereby generating nitrogen-rich gas. At the same time, the motor 71 is started, and the output end of the motor 71 rotates to drive the turntable 82 to rotate, and at the same time, the rotation of the turntable 82 drives the fan blades 84 to rotate, and the rotation of the fan blades 84 pumps the air toward the heat insulation filter plate 87. At the same time, the rotation of the turntable 82 drives the bevel plate 83 to rotate, and the bevel plate 83 rotates to contact and squeeze the scraper 85 to move upward, and the scraper 85 moves upward to scrape off the dust and impurities on the surface of the carbon molecular sieve 86, thereby avoiding the carbon molecular sieve 86 from being blocked and unable to adsorb and degrade oxygen well, effectively removing the accumulation in the carbon molecular sieve 86, restoring its adsorption performance, improving its regeneration efficiency, maintaining the long-term stable operation of the equipment, and helping to maintain the carbon molecular sieve. The screen 86 works efficiently, and then the air is filtered through the heat insulation filter plate 87. When the heat insulation filter plate 87 is blocked by dust and impurities during long-term use, it will move downward under the air pressure. The movement of the heat insulation filter plate 87 drives the rotating disk 89 to move. When the rotating disk 89 moves under the action of the heat insulation filter plate 87 until it engages with the toothed disk 88, the rotation of the rotating shaft 81 drives the toothed disk 88 to rotate. The rotation of the toothed disk 88 drives the rotating disk 89 to rotate. The rotation of the rotating disk 89 drives the scraper 2 813 to rotate. At the same time, the rotation of the scraper 2 813 will scrape off the impurities and dust blocking the heat insulation filter plate 87, restore the permeability of the heat insulation filter plate 87, ensure that the filtering effect is not affected, thereby improving the air purification efficiency, and avoiding the heat insulation filter plate 87 When the harmful substances in the air may not be effectively filtered out when it is blocked, affecting the indoor air quality, cleaning the filter plate can ensure that the filtration system continues to effectively remove dust in the air.

[0031] The rotation of scraper 2 813 drives rotating rod 93 to rotate with rotating shaft 81 as the center, and the rotation of rotating rod 93 drives roller 2 94 to move. Because roller 1 92 is in contact with roller 2 94, roller 2 94 moves and rotates under the action of roller 1 92. At the same time, the rotation of roller 2 94 drives fixed plate 95 to rotate, and the rotation of fixed plate 95 drives stirring plate 96 to rotate with roller 2 94 as the center. The rotation of stirring plate 96 stirs the dry particles inside drying box 91, which can help the dry particles to be more evenly distributed in the filter medium or in the air flow, and enhance the contact effect between the dry particles and air pollutants. If the dry particles are not effectively stirred, they may accumulate in certain areas, resulting in reduced filtration efficiency. Stirring can prevent excessive deposition of dry particles and ensure stable operation of filtration. Then air passes through drying box 91 into the interior of air intake cylinder 97. The air will rotate at high speed between air intake cylinder 97 and separation cylinder 99 until it reaches the interior of water tank 910. The moisture in the air is mixed between air intake cylinder 97 and separation cylinder 99. The air is separated into the water tank 910 by the centrifugal force generated by the rotation in the gap between the cylinders 99. The filtered air rises through the separation cylinder 99 and enters the separation tube 98. The separated water stays in the water tank 910. Then the air enters the purification box 6 through the separation tube 98. At the same time, the rotation of the shaft 81 drives the fixed ring 911 to rotate. At the same time, the rotation of the fixed ring 911 drives the rotating plate 912 to rotate. The rotating plate 912 rotates to sweep the water inside the water tank 910 into the drainage pipe 913 and discharge it. Then, the filtered and dried air passes through the filter tube 51 into the circulation tank 2 for the next step. The water in the air will affect the working efficiency of the nitrogen generator and the purity of the nitrogen. By discharging the water in time, the water can be prevented from interfering with the subsequent nitrogen separation process, thereby improving the purity of the nitrogen. The accumulation of water inside the equipment may cause an unstable working state. After the water is discharged in time, the operation of the equipment is more stable, thereby reducing the maintenance requirements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nitrogen generator capable of pre-purifying air comprises a base (1) and a heating tube (55), characterized in that: It also includes a purification device, a filtering device and a drying device; Wherein, a circulation tank 1 (2) is fixedly mounted on the top of the base (1), a circulation tank 2 (3) is fixedly mounted on the top of the base (1), a control console (4) is fixedly mounted on the top of the base (1), a filter tube (51) is fixedly penetrated through the bottom of the circulation tank 1 (2), a pressure measuring tube (52) is fixedly penetrated through the circumferential surface of the circulation tank 1 (2), an oxygen delivery tube (53) is fixedly penetrated through the top of the circulation tank 1 (2), a nitrogen delivery tube (54) is fixedly penetrated through the bottom of the circulation tank 2 (3), and a purification box (6) is fixedly mounted on the base (1); The purification device comprises a motor (71), a connecting pipe (72), an air intake pipe (73), a carbon filter plate (74), an adsorption cylinder (75), a sliding plate (76), a sieve plate (77), a baffle (78) and a button (79); the motor (71) is fixedly installed through the top of the purification box (6); the connecting pipe (72) is fixedly installed on the surface of the purification box (6); the air intake pipe (73) is fixedly installed on the end of the connecting pipe (72) away from the purification box (6); the carbon filter plate (74) is fixedly installed on the surface of the purification box (6); the adsorption cylinder (75) is fixedly installed on the surface of the carbon filter plate (74); a sliding groove is formed on the circumferential surface of the connecting pipe (72); the sliding plate (76) is slidably installed on the inner wall of the sliding groove; the sieve plate (77) is fixedly installed on the end of the sliding plate (76) away from the sliding groove; the baffle (78) is fixedly installed on the surface of the sliding plate (76); and the button (79) is arranged on the inner wall of the sliding groove.

2. A nitrogen generator capable of pre-purifying air according to claim 1, characterized in that: An air inlet is provided on the surface of the purification box (6), the oxygen supply pipe (53) is fixedly passed through the top of the second circulation tank (3), and the button (79) is electrically connected to the control console (4).

3. A nitrogen generator capable of pre-purifying air according to claim 2, characterized in that: The filter tube (51) is fixedly passed through the surface of the purification box (6), the pressure measuring tube (52) is fixedly passed through the circumferential surface of the second circulation tank (3), and the pressure measuring tube (52) is fixedly passed through the bottom of the control console (4).

4. A nitrogen generator capable of pre-purifying air according to claim 3, characterized in that: The filtering device comprises a rotating shaft (81), a rotating disk (82), a beveled plate (83), a fan blade (84), a scraper plate (85), a carbon molecular sieve (86), a heat-insulating filter plate (87), a toothed disk (88), a rotating disk (89), a tooth block (810), a connecting plate (811) and a scraper plate (813), wherein the rotating shaft (81) is fixedly mounted on the output end of the motor (71), the rotating disk (82) is fixedly mounted on the circumferential surface of the rotating shaft (81), the beveled plate (83) is fixedly mounted on the top of the rotating disk (82), and the fan blade (84) is fixedly mounted on the bottom of the rotating disk (82). The scraper plate 1 (85) is slidably mounted on the circumferential surface of the rotating shaft (81), the carbon molecular sieve (86) is fixedly mounted on the inner wall of the purification box (6), the heat insulation filter plate (87) is slidably mounted on the inner wall of the purification box (6), the toothed disc (88) is fixedly mounted on the circumferential surface of the rotating shaft (81), the rotating disc (89) is slidably mounted on the circumferential surface of the rotating shaft (81), the tooth block (810) is fixedly mounted on the inner wall of the rotating disc (89), the connecting plate (811) is rotatably mounted on the circumferential surface of the rotating shaft (81), and the scraper plate 2 (813) is fixedly mounted on the circumferential surface of the rotating disc (89).

5. A nitrogen generator capable of pre-purifying air according to claim 4, characterized in that: A telescopic elastic rod (812) is fixedly mounted on the surface of the heat-insulating filter plate (87); the free end of the telescopic elastic rod (812) is fixedly connected to the connecting plate (811); the surface of the beveled plate (83) is configured as arc surface 1; and the rotating disk (89) is rotatably connected to the bottom of the heat-insulating filter plate (87).

6. A nitrogen generator capable of pre-purifying air according to claim 5, characterized in that: The tooth block (810) is meshed with the tooth disk (88), and the scraper plate 1 (85) is slidably connected with the carbon molecular sieve (86).

7. A nitrogen generator capable of pre-purifying air according to claim 6, characterized in that: The drying device comprises a drying box (91), a roller 1 (92), a rotating rod (93), a roller 2 (94), a fixed plate (95), a stirring plate (96), an air inlet tube (97), a separation tube (98), a separation tube (99), a water tank (910), a fixed ring (911), a rotating plate (912) and a drainage pipe (913). The drying box (91) is fixedly mounted on the inner wall of the purification box (6), the roller 1 (92) is fixedly mounted on the circumferential surface of the rotating shaft (81), the rotating rod (93) is fixedly mounted on the bottom of the scraper 2 (813), the roller 2 (94) is rotatably mounted on the circumferential surface of the rotating rod (93), and the fixed plate (95) is fixedly mounted. On the circumferential surface of roller 2 (94), the stirring plate (96) is fixedly mounted on the surface of the fixed plate (95), the air inlet cylinder (97) is fixedly mounted on the bottom of the drying box (91), the separation tube (98) is fixedly mounted through the circumferential surface of the air inlet cylinder (97), the separation tube (99) is fixedly mounted on the end of the separation tube (98) away from the purification box (6), the water tank (910) is fixedly mounted on the bottom of the air inlet cylinder (97), the fixed ring (911) is fixedly mounted on the circumferential surface of the rotating shaft (81), the rotating plate (912) is fixedly mounted on the circumferential surface of the fixed ring (911), and the drainage pipe (913) is fixedly mounted through the circumferential surface of the water tank (910).

8. A nitrogen generator capable of pre-purifying air according to claim 7, characterized in that: The surface of the water tank (910) is configured as a second arc surface, the drainage pipe (913) is fixedly connected to and penetrates the surface of the purification box (6), and the first roller (92) is in contact with the second roller (94).

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