Nitrogen generator exhaust gas filtering treatment device and method

Abstract

The application belongs to the technical field of waste gas filtering equipment, and particularly relates to a nitrogen generator waste gas filtering treatment device and method. The device comprises a butt joint pipe installed on the waste gas outlet of the nitrogen generator, one end of the butt joint pipe is provided with a first internal thread opening, the first internal thread opening is threadedly connected with one end of an adjusting pipe, the other end of the adjusting pipe is threadedly connected with a first air outlet pipe, the outer surface of the adjusting pipe is connected with a second air outlet pipe, and the inner surface of the adjusting pipe is slidably connected with a filter screen cylinder. The device can quickly find whether the pre-filter of the nitrogen generator is invalid, automatically perform emergency filtering treatment, and automatically perform dust cleaning operation to realize long-term operation of the device. The device is convenient for workers to find abnormalities and quickly perform emergency filtering treatment. The device is convenient for workers to find abnormalities of the pre-filter of the nitrogen generator, can ensure emergency dust cleaning and filtering effect, and realizes long-term operation of the device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waste gas filtering equipment, and particularly relates to a nitrogen generator waste gas filtering and treating device and method. BACKGROUND

[0002] Waste gas filtering equipment is a device used to purify waste gas generated during industrial production or other processes. It captures or removes pollutants in waste gas through physical interception and other means, so that it meets emission standards or recycling requirements, thereby reducing harm to the environment and human health. They are widely used in factories, workshops, laboratories and other places with waste gas emissions.

[0003] When the nitrogen generator is working, it will produce some waste gas. Since the nitrogen generator will have a pre-filtering device for filtering treatment before nitrogen production, these waste gases are mainly oxygen or moisture, which will not harm the outside. However, if the pre-filtering device malfunctions, the waste gas produced by the nitrogen generator will contain dust and other harmful substances.

[0004] A mobile nitrogen generator is disclosed in Chinese Patent No. 202022727881.0, which includes a device main body, the lower end of the device main body is provided with a support seat, the lower end of the support seat is provided with a wheel, the upper surface of the wheel is provided with a brake pad, the right side of the device main body is provided with a wastewater treatment tank, the upper end of the wastewater treatment tank is provided with a wastewater inlet pipe, the inside of the wastewater treatment tank is provided with a wastewater filter screen, the lower end of the wastewater treatment tank is provided with a liquid outlet, the right side of the wastewater treatment tank is provided with a waste gas treatment tank, the lower end of the waste gas treatment tank is provided with a waste gas inlet pipe, the inside of the waste gas treatment tank is provided with a waste gas filter screen, and the upper end of the waste gas treatment tank is provided with an air outlet pipe. The patent has the advantages of being movable, improving the portability of use, and having the advantages of treating wastewater and waste gas, thereby protecting the environment.

[0005] When the nitrogen generator with a pre-filter is working, it is usually not necessary to treat the waste gas, but once the pre-filter fails, it is difficult to detect and cannot quickly and emergently treat the generated waste gas. At the same time, for the monitoring type filtering equipment, how to ensure long-term stable operation is also the key. SUMMARY

[0006] In order to solve the problems in the prior art, the application provides a nitrogen generator waste gas filtering treatment device and method, which can quickly find out whether the nitrogen generator pre-filter is invalid and automatically perform emergency filtering treatment, and can also automatically perform dust cleaning operation to realize long-term operation of the equipment through cooperation of the first air outlet pipe, the second air outlet pipe and the filter screen cylinder.

[0007] In order to achieve the above object, the application adopts the following technical scheme:

[0008] The nitrogen generator waste gas filtering treatment device comprises a butt joint pipe installed on a waste gas outlet of a nitrogen generator, a first internal thread opening is formed in one end of the butt joint pipe, and the first internal thread opening is threadedly connected with one end of an adjusting pipe; a first air outlet pipe is threadedly connected with the other end of the adjusting pipe; a second air outlet pipe is in communication with the outer surface of the adjusting pipe, a filter screen cylinder is slidably connected with the inner surface of the adjusting pipe, a plurality of sliding rods are fixedly arranged around one end of the filter screen cylinder, a limiting ring is fixedly arranged on the inner wall of the first air outlet pipe, a plurality of sliding holes are formed in the limiting ring, and the sliding rods are slidably connected with the corresponding sliding holes; a reset spring is sleeved on the sliding rod, and the two ends of the reset spring are fixedly connected with the filter screen cylinder and the limiting ring respectively; and a plurality of filter blocks are fixedly installed in the second air outlet pipe.

[0009] Further, two abutting rings are fixedly arranged on the outer surface of the adjusting pipe, two first communication holes are symmetrically formed on the outer surface of the adjusting pipe, and the first communication holes are located between the two abutting rings; the second air outlet pipe comprises a rotating ring, the rotating ring is located between the two abutting rings and is sealingly and rotatably connected with the adjusting pipe, two second communication holes are symmetrically formed on the rotating ring, and an L-shaped air outlet pipe is fixedly and communicatively arranged on the second communication holes.

[0010] Further, a plurality of connecting magnetic plates are fixedly connected around one end of the first air outlet pipe, a plurality of connecting magnetic plates are fixedly connected with a closed disc, and a step difference is formed between the connecting magnetic plates and the closed disc; the end portions of the sliding rods are fixedly connected with a closed magnetic ring; when the closed magnetic ring is connected with the connecting magnetic plates, the closed magnetic ring and the closed disc jointly close the first air outlet pipe.

[0011] Further, a second sliding hole is formed in the middle of the closing disc, and a switching mechanism is slidably connected to the second sliding hole, the switching mechanism comprising a first sliding rod and two second sliding rods; the first sliding rod is slidably connected to the second sliding hole of the closing disc; a plurality of L-shaped connecting rods are uniformly fixed to the ends of the first sliding rod, and the ends of the L-shaped connecting rods are fixedly connected to the closing magnetic ring; the L-shaped connecting rods and the sliding rods are located on the same side of the closing magnetic ring; the first sliding rod and the two second sliding rods are fixedly connected by a fixing rod.

[0012] Further, a plurality of second connecting rods are fixed to the ends of the second sliding rods, and a second closing magnetic ring is fixedly connected to the ends of the second connecting rods; a plurality of second connecting magnetic plates are fixed to the inner wall of the L-shaped air outlet pipe, and a second closing disc is fixedly connected to the second connecting magnetic plates; the second connecting magnetic plates and the second closing disc have a step difference; when the second closing magnetic ring is connected to the second connecting magnetic plates, the second closing magnetic ring and the second closing disc jointly close the L-shaped air outlet pipe.

[0013] Further, a threaded cylinder is fixedly connected to one side of the second closing magnetic ring, the threaded cylinder is threadedly connected to a cleaning cylinder, and a brush is arranged on the outer side of the cleaning cylinder and abuts against the inner wall of the L-shaped air outlet pipe.

[0014] Further, when the outer wall of the filter screen cylinder closes the first communication hole, the second closing magnetic ring is connected to the second connecting magnetic plates, and the closing magnetic ring is disconnected from the connecting magnetic plates; when the outer wall of the filter screen cylinder does not shield the first communication hole, the second closing magnetic ring is disconnected from the second connecting magnetic plates, and the closing magnetic ring is connected to the connecting magnetic plates.

[0015] Further, a temporary filter screen block is arranged in the middle of the filter screen cylinder.

[0016] Further, the two ends of the adjusting pipe are provided with second external threaded openings, one end of the first air outlet pipe is provided with a second internal threaded opening, and the end of the butt joint pipe away from the first internal threaded opening is provided with a third internal threaded opening; when the adjusting pipe is threadedly connected to the first air outlet pipe, the adjusting pipe is flush with the inner wall of the first air outlet pipe.

[0017] The application also claims a method for processing by using the above-mentioned nitrogen generator waste gas filtering and processing device, comprising the following steps:

[0018] S1. When initially installed, the second air outlet pipe is rotated so as to be disconnected from the adjusting pipe;

[0019] S2. When the switching mechanism moves horizontally, the second air outlet pipe is rotated so as to be connected to the adjusting pipe; after a period of time, if the switching mechanism is reset and no longer moves horizontally, the second air outlet pipe is rotated so as to be disconnected from the adjusting pipe again;

[0020] S3, after a period of time, if the switching mechanism reciprocates horizontally, the equipment is stopped for maintenance.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] (1) The present application can quickly discover whether the nitrogen generator pre-filter is invalid and automatically perform emergency filtering treatment by the cooperation of the first air outlet pipe, the second air outlet pipe and the filter screen cylinder, and can also automatically perform dust cleaning operation to realize long-term operation of the equipment. Specifically, when the nitrogen generator pre-filter is normally operated, the waste gas of the nitrogen generator only contains harmless substances such as oxygen and a small amount of moisture, so it can be normally discharged through the filter screen cylinder without causing the filter screen cylinder to be blocked, and the gas is only discharged from the first air outlet pipe. When the nitrogen generator pre-filter is invalid, the dust will be filtered by the filter screen cylinder, causing the filter screen cylinder to be gradually blocked. At this time, the waste gas outlet end pressure gradually increases due to the blockage, causing the filter screen cylinder to slide the compression return spring. At this time, the communication part of the adjusting pipe and the second air outlet pipe is no longer blocked by the filter screen cylinder, so that the waste gas containing dust and other impurities can enter the second air outlet pipe, thereby realizing automatic emergency filtering treatment, and the gas is discharged from the second air outlet pipe, so that the working personnel can quickly discover whether the nitrogen generator pre-filter is invalid. At the same time, when the communication part of the adjusting pipe and the second air outlet pipe is no longer blocked by the filter screen cylinder, the dust on the filter screen cylinder will continue to be carried to the second air outlet pipe by the gas, thereby automatically performing dust cleaning operation to restore the filtering effect of the filter screen cylinder, so that the equipment can continue to be monitored and used after the nitrogen generator pre-filter is repaired, thereby realizing long-term operation of the equipment.

[0023] (2) The present application cooperates the adjusting pipe and the second air outlet pipe, so that the filter screen cylinder slides before using the second air outlet pipe, which facilitates the working personnel to discover abnormalities and quickly perform emergency filtering treatment. Specifically, when initially installed, the second air outlet pipe is rotated to make the second air outlet pipe not communicate with the adjusting pipe. In this way, if the filter screen cylinder is blocked, the filter screen cylinder can maintain a displacement effect for a period of time, thereby facilitating the working personnel to discover abnormalities. At the same time, after discovering abnormalities, the working personnel can quickly perform emergency filtering treatment by only rotating the second air outlet pipe to make the second air outlet pipe communicate with the adjusting pipe.

[0024] (3) The application can help the staff to find the abnormality of the nitrogen making machine pre-filter, ensure emergency dust cleaning and filtering effect, and realize long-term operation of the equipment. Specifically, when the nitrogen making machine pre-filter is abnormal, the filter screen cylinder is blocked and will drive the switching mechanism to move horizontally, so that the staff can find the abnormality of the nitrogen making machine pre-filter. At the same time, if the blockage is serious, the closed magnetic ring will eventually connect with the connecting magnetic plate under the action of the wind force, so that the closed magnetic ring and the closed disc together close the first air outlet pipe. Therefore, under the action of the closed first air outlet pipe and the magnetic connection between the magnetic ring and the connecting magnetic plate, no gas passes through the filter screen cylinder, so that the exhaust gas is only discharged from the second air outlet pipe, and the gas containing dust and harmful substances can be effectively filtered by the multi-layer filter block, ensuring the filtering effect. At this time, the side wind of the exhaust gas will repeatedly act on the filter screen cylinder, bringing the dust on the filter screen cylinder into the second air outlet pipe, so that the filter screen cylinder is cleaned and unblocked, thereby ensuring the emergency dust cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0026] Figure 2 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0027] Figure 3 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0028] Figure 4 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0029] Figure 5 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0030] Figure 6 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0031] Figure 7 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0032] Figure 8 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0033] Figure 9 It is a whole structure schematic view of the exhaust gas filtering treatment device of the nitrogen making machine.

[0034] The symbols are as follows:

[0035] the adapter pipe-100; the third female screw-110; the first female screw-120; the adjusting pipe-200; the first communication hole-210; the abutting ring-220; the second male screw-230; the first air outlet pipe-300; the closing disc-310; the connecting magnetic plate-320; the limiting ring-330; the sliding hole-340; the second female screw-350; the second air outlet pipe-400; the rotating ring-410; the second communication hole-420; the L-shaped air outlet pipe-430; the multi-layer filter block-440; the second closing disc-450; the second connecting magnetic plate-460; the switching mechanism-500; the first sliding rod-510; the second sliding rod-520; the fixed rod-530; the second connecting rod-540; the second closing magnetic ring-550; the threaded cylinder-560; the L-shaped connecting rod-580; the closing magnetic ring-590; the filter screen cylinder-600; the temporary filter screen block-610; the sliding rod-620; the reset spring-630; the cleaning cylinder-700. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments. Of course, the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0037] The steps in the present application are arranged by using the labels, but are not used to limit the sequence of the steps, unless the sequence of the steps is explicitly described or the execution of a certain step needs other steps as the basis. The relative sequence of the steps can be adjusted. It can be understood that the term "and / or" used herein involves and covers any and all possible combinations of one or more of the associated listed items.

[0038] EMBODIMENT

[0039] As Figures 1-9As shown, a nitrogen generator exhaust gas filtering treatment device, including a docking pipe 100 installed on the nitrogen generator exhaust gas outlet, one end of the docking pipe 100 is provided with a first internal threaded port 120, the first internal threaded port 120 is threadedly connected with one end of an adjusting pipe 200; the other end of the adjusting pipe 200 is screwed with a first air outlet pipe 300; the outer surface of the adjusting pipe 200 is communicated with a second air outlet pipe 400, the inner surface of the adjusting pipe 200 is slidingly connected with a filter screen cylinder 600, a plurality of sliding rods 620 are fixedly arranged around one end of the filter screen cylinder 600, a limiting ring 330 is fixedly arranged on the inner wall of the first air outlet pipe 300, a plurality of sliding holes 340 are arranged on the limiting ring 330, the sliding rods 620 are slidingly connected with the corresponding sliding holes 340; a reset spring 630 is sleeved on the sliding rod 620, and the two ends of the reset spring 630 are fixedly connected with the filter screen cylinder 600 and the limiting ring 330 respectively; a plurality of filter blocks 440 are fixedly installed in the second air outlet pipe 400.

[0040] The cooperation of the first air outlet pipe 300, the second air outlet pipe 400 and the filter screen cylinder 600 can quickly find out whether the nitrogen generator pre-filter is invalid and automatically perform emergency filtering treatment, and automatically perform dust cleaning operation to realize long-term operation of the equipment; specifically, when the nitrogen generator pre-filter is normally operated, the exhaust gas of the nitrogen generator only contains harmless substances such as oxygen and a small amount of moisture, so it can normally pass through the filter screen cylinder 600 and be discharged without causing the filter screen cylinder 600 to be blocked, and the gas is only discharged from the first air outlet pipe 300, which is the normal state and does not need active carbon and other structures for deep filtration; when the nitrogen generator pre-filter is invalid, the dust is filtered by the filter screen cylinder 600, so that the filter screen cylinder 600 is gradually blocked, at this time, the exhaust gas outlet end pressure gradually increases due to the blockage, causing the filter screen cylinder 600 to slide and compress the reset spring 630; at this time, the communication part of the adjusting pipe 200 and the second air outlet pipe 400 is no longer blocked by the filter screen cylinder 600, so that the exhaust gas containing dust and other impurities can enter the second air outlet pipe 400 and be filtered by the plurality of filter blocks 440, thereby realizing automatic emergency filtering treatment, and the gas is discharged from the second air outlet pipe 400, so that the staff can quickly find out whether the nitrogen generator pre-filter is invalid; at the same time, when the communication part of the adjusting pipe 200 and the second air outlet pipe 400 is no longer blocked by the filter screen cylinder 600, the dust on the filter screen cylinder 600 is continuously carried to the second air outlet pipe 400 by the gas, thereby automatically performing dust cleaning operation, so that the filter screen cylinder 600 restores the filtering effect, and the device can continue to be monitored and used after the nitrogen generator pre-filter is repaired, thereby realizing long-term operation of the equipment.

[0041] It is worth mentioning that when the dust on the filter screen cylinder 600 is continuously brought to the second air outlet pipe 400 for automatic dust removal, the filter screen cylinder 600 can be reset to the initial state again due to the recovery of the filter screen cylinder 600 and the reset action of the reset spring 630; at this time, if the nitrogen making machine pre-filter really fails, the filter screen cylinder 600 will quickly collect dust to form a blockage, thereby forming the reciprocating movement of the filter screen cylinder 600 to facilitate subsequent judgment of whether the nitrogen making machine pre-filter really fails; if it is only a blockage caused by long-term accumulation of a small amount of dust, the filter screen cylinder 600 will not quickly reciprocate after the first automatic dust removal, but will return to the previous temporary filtering state, thereby quickly discovering whether the nitrogen making machine pre-filter fails.

[0042] Further, the outer surface of the adjusting pipe 200 is fixedly provided with two abutting rings 220, and the outer surface of the adjusting pipe 200 is symmetrically provided with two first communication holes 210, and the first communication hole 210 is located between the two abutting rings 220; the second air outlet pipe 400 comprises a rotating ring 410, and the rotating ring 410 is located between the two abutting rings 220 and is sealingly and rotatably connected with the adjusting pipe 200; the rotating ring 410 is symmetrically provided with two second communication holes 420, and the second communication hole 420 is fixedly communicated with an L-shaped air outlet pipe 430.

[0043] The adjusting pipe 200 and the second air outlet pipe 400 are matched, so that the filter screen cylinder 600 slides and then uses the second air outlet pipe 400, which facilitates the staff to discover abnormalities and quickly performs emergency filtering treatment; specifically, when initially installed, the second air outlet pipe 400 is rotated to make the second air outlet pipe 400 not communicated with the adjusting pipe 200, so that if the filter screen cylinder 600 is blocked, the filter screen cylinder 600 can maintain displacement effect for a period of time, thereby facilitating the staff to discover abnormalities; at the same time, after discovering abnormalities, the staff only needs to rotate the second air outlet pipe 400 to make the second air outlet pipe 400 communicated with the adjusting pipe 200 to quickly perform emergency filtering treatment.

[0044] It is worth mentioning that the multi-layer filter block 440 is an internal filter structure, which can be composed of a plurality of layers such as an activated carbon layer and a sponge layer, and is used for filtering dust and other harmful impurities, and is a deep filtering treatment, which is a conventional choice and will not be described in detail here.

[0045] Further, a plurality of connecting magnetic plates 320 are fixedly connected around one end of the first air outlet pipe 300, and a plurality of connecting magnetic plates 320 are fixedly connected with a closed disc 310, and the connecting plate 320 and the closed disc 310 have a step difference; the end of the sliding rod 620 is fixedly connected with a closed magnetic ring 590; when the closed magnetic ring 590 is connected with the connecting magnetic plate 320, the closed magnetic ring 590 and the closed disc 310 jointly close the first air outlet pipe 300.

[0046] The structure design of the closed magnetic ring 590 and the connecting magnetic plate 320 helps to quickly form a seal for the first air outlet pipe 300, thereby ensuring subsequent automatic dust removal operation and effect, only a certain magnetic force is required, and too strong magnetic force is not required, which will be described in detail later.

[0047] Further, a second sliding hole is formed in the middle of the closed disc 310, a switching mechanism 500 is slidingly connected on the second sliding hole, the switching mechanism 500 comprises a first sliding rod 510 and two second sliding rods 520; the first sliding rod 510 is slidingly connected with the second sliding hole of the closed disc 310; a plurality of L-shaped connecting rods 580 are uniformly fixed on the end of the first sliding rod 510, and the ends of the L-shaped connecting rods 580 are fixedly connected with the closed magnetic ring 590; the L-shaped connecting rods 580 and the sliding rod 620 are located on the same side of the closed magnetic ring 590; the first sliding rod 510 and the two second sliding rods 520 are fixedly connected by a fixed rod 530.

[0048] The structure design of the switching mechanism 500 facilitates the staff to find the abnormality of the nitrogen making machine pre-filter, and also ensures the emergency dust removal and filtering effect, thereby realizing long-term operation of the equipment, which will be described in detail later.

[0049] Further, a plurality of second connecting rods 540 are fixedly arranged on the end of the second sliding rod 520, and the ends of the plurality of second connecting rods 540 are fixedly connected with a second closed magnetic ring 550; a plurality of second connecting magnetic plates 460 are fixedly arranged around the inner wall of the L-shaped air outlet pipe 430, the plurality of second connecting magnetic plates 460 are fixedly connected with a second closed disc 450, and the second connecting magnetic plate 460 and the second closed disc 450 have a step difference; when the second closed magnetic ring 550 is connected with the second connecting magnetic plate 460, the second closed magnetic ring 550 and the second closed disc 450 jointly close the L-shaped air outlet pipe 430.

[0050] When the nitrogen generator pre-filter is abnormal, the filter screen cylinder 600 is blocked and will drive the switching mechanism 500 to move horizontally, so that the staff can quickly find that the nitrogen generator pre-filter is abnormal through the horizontal movement of the switching mechanism 500; at the same time, if the blockage is serious, the closed magnetic ring 590 will eventually be connected with the connecting magnetic plate 320 under the action of the wind force, so that the closed magnetic ring 590 and the closed disc 310 jointly close the first air outlet pipe 300; therefore, under the action of the closed first air outlet pipe 300 and the magnetic connection between the magnetic ring 590 and the connecting magnetic plate 320, no gas passes through the filter screen cylinder 600, so that the exhaust gas is only discharged from the second air outlet pipe 400, and the gas containing dust and harmful substances can be effectively filtered by the multi-layer filter block 440, thereby ensuring the filtering effect; at this time, the side wind of the exhaust gas will repeatedly act on the filter screen cylinder 600, bringing the dust on the filter screen cylinder 600 into the second air outlet pipe 400, so that the filter screen cylinder 600 is cleaned and unblocked, thereby ensuring the emergency dust cleaning effect.

[0051] It is worth noting that after the filter screen cylinder 600 is cleaned and unblocked, the pressure of the wind force on the filter screen cylinder 600 is reduced, and the filter screen cylinder 600 is reset under the resetting action of the reset spring 630.

[0052] Further, one side of the second closed magnetic ring 550 is fixedly connected with a threaded cylinder 560, the threaded cylinder 560 is threadedly connected with a cleaning cylinder 700, and the outer side of the cleaning cylinder 700 is provided with a brush and abuts against the inner wall of the L-shaped air outlet pipe 430. The structural design of the cleaning cylinder 700 facilitates subsequent monitoring of the use of the multi-layer filter block 440. If the multi-layer filter block 440 fails, the surface of the cleaning cylinder 700 will be dirty after reciprocating, thereby reminding the staff to replace it.

[0053] Further, when the outer wall of the filter screen cylinder 600 closes the first communication hole 210, the second closed magnetic ring 550 is connected with the second connecting magnetic plate 460, and the closed magnetic ring 590 is disconnected with the connecting magnetic plate 320; when the outer wall of the filter screen cylinder 600 does not completely shield the first communication hole 210, the second closed magnetic ring 550 is disconnected with the second connecting magnetic plate 460, and the closed magnetic ring 590 is connected with the connecting magnetic plate 320.

[0054] It is worth noting that when the second closed magnetic ring 550 is connected with the second connecting magnetic plate 460, the L-shaped air outlet pipe 430 can be ensured to be in a closed state, thereby avoiding the influence of external dust and impurities on the multi-layer filter block 440, thereby prolonging the use time of the multi-layer filter block 440.

[0055] Further, the middle part of the filter screen cylinder 600 is provided with a temporary filter screen block 610.

[0056] It is worth mentioning that the filter screen block 610 is a mesh material, mainly plays a temporary filtering role, is used for filtering a small amount of dust, and the size of the filter screen block 610 is only a schematic diagram, and can be flexibly adjusted according to actual conditions, and is not limited further.

[0057] Further, two ends of the adjusting pipe 200 are provided with second external thread openings 230, one end of the first air outlet pipe 300 is provided with a second internal thread opening 350, and the end of the butt joint pipe 100 away from the first internal thread opening 120 is provided with a third internal thread opening 110; when the adjusting pipe 200 is screwed with the first air outlet pipe 300, the adjusting pipe 200 is flush with the inner wall of the first air outlet pipe 300.

[0058] The application is convenient to install and disassemble in the mode of multi-layer threaded connection, and is convenient to maintain and replace the equipment.

[0059] A method for processing by using the above-mentioned nitrogen generator waste gas filtering and processing device, comprising the following steps:

[0060] S1, when initially installed, rotating the second air outlet pipe 400 so that the second air outlet pipe 400 is not communicated with the adjusting pipe 200;

[0061] S2, when the switching mechanism 500 moves horizontally, rotating the second air outlet pipe 400 so that the second air outlet pipe 400 is communicated with the adjusting pipe 200; after a period of time, if the switching mechanism 500 is reset and no longer moves horizontally, rotating the second air outlet pipe 400 so that the second air outlet pipe 400 restores the state of not being communicated with the adjusting pipe 200;

[0062] S3, after a period of time, if the switching mechanism 500 reciprocatingly moves horizontally, stopping and maintaining the front equipment.

[0063] The above only describes the preferred embodiments of the application, and it should be noted that, for those skilled in the art, without departing from the inventive concept, several improvements and changes can be made, which are all within the protection scope of the application.

Claims

1. A device for filtering and treating exhaust gas of a nitrogen generator, characterized in that, The application relates to a nitrogen production machine, which comprises a butt joint pipe (100) installed on the exhaust outlet of the nitrogen production machine, a first inner threaded opening (120) is formed in one end of the butt joint pipe (100), the first inner threaded opening (120) is threadedly connected with one end of an adjusting pipe (200), a first air outlet pipe (300) is screwed on the other end of the adjusting pipe (200), a second air outlet pipe (400) is communicated with the outer surface of the adjusting pipe (200), a filter screen cylinder (600) is slidably connected with the inner surface of the adjusting pipe (200), a plurality of sliding rods (620) are fixedly arranged around one end of the filter screen cylinder (600), a limiting ring (330) is fixedly arranged on the inner wall of the first air outlet pipe (300), a plurality of sliding holes (340) are formed in the limiting ring (330), the sliding rods (620) are slidably connected with the corresponding sliding holes (340), a reset spring (630) is sleeved on the sliding rod (620), and the two ends of the reset spring (630) are fixedly connected with the filter screen cylinder (600) and the limiting ring (330) respectively; a plurality of filter blocks (440) are fixedly installed in the second air outlet pipe (400). Two abutting rings (220) are fixedly arranged on the outer surface of the adjusting pipe (200), two first communication holes (210) are symmetrically formed in the outer surface of the adjusting pipe (200), and the first communication holes (210) are located between the two abutting rings (220); the second air outlet pipe (400) comprises a rotating ring (410), the rotating ring (410) is located between the two abutting rings (220) and is sealingly and rotatably connected with the adjusting pipe (200), two second communication holes (420) are symmetrically formed in the rotating ring (410), and L-shaped air outlet pipes (430) are fixedly communicated with the second communication holes (420); A plurality of connecting magnetic plates (320) are fixedly connected around one end of the first air outlet pipe (300), a plurality of connecting magnetic plates (320) are fixedly connected with a closed disc (310), and the connecting magnetic plates (320) and the closed disc (310) have a step difference; the end portions of the sliding rods (620) are fixedly connected with a closed magnetic ring (590); when the closed magnetic ring (590) is connected with the connecting magnetic plates (320), the closed magnetic ring (590) and the closed disc (310) jointly close the first air outlet pipe (300). The middle part of the closing disc (310) is provided with a second sliding hole, and a switching mechanism (500) is slidably connected to the second sliding hole; the switching mechanism (500) comprises a first sliding rod (510) and two second sliding rods (520); the first sliding rod (510) is slidably connected to the second sliding hole of the closing disc (310); a plurality of L-shaped connecting rods (580) are uniformly arranged at the ends of the first sliding rod (510); the ends of the L-shaped connecting rods (580) are fixedly connected to a closing magnetic ring (590); the L-shaped connecting rods (580) and the sliding rod (620) are located on the same side of the closing magnetic ring (590); the first sliding rod (510) and the two second sliding rods (520) are fixedly connected by a fixed rod (530); A plurality of second connecting rods (540) are fixedly arranged at the ends of the second sliding rods (520); the ends of the second connecting rods (540) are fixedly connected to a second closing magnetic ring (550); a plurality of second connecting magnetic plates (460) are fixedly arranged around the inner wall of the L-shaped air outlet pipe (430); the second connecting magnetic plates (460) are fixedly connected to a second closing disc (450); the second connecting magnetic plates (460) and the second closing disc (450) have a step difference; when the second closing magnetic ring (550) is connected to the second connecting magnetic plate (460), the second closing magnetic ring (550) and the second closing disc (450) jointly close the L-shaped air outlet pipe (430).

2. The device according to claim 1, wherein One side of the second closing magnetic ring (550) is fixedly connected to a threaded cylinder (560); the threaded cylinder (560) is threadedly connected to a cleaning cylinder (700); the outer side of the cleaning cylinder (700) is provided with a brush and abuts against the inner wall of the L-shaped air outlet pipe (430).

3. The device according to claim 2, wherein When the outer wall of the filter screen cylinder (600) closes the first communication hole (210), the second closing magnetic ring (550) is connected to the second connecting magnetic plate (460), and the closing magnetic ring (590) is disconnected from the connecting magnetic plate (320); when the outer wall of the filter screen cylinder (600) does not completely shield the first communication hole (210), the second closing magnetic ring (550) is disconnected from the second connecting magnetic plate (460), and the closing magnetic ring (590) is connected to the connecting magnetic plate (320).

4. The device according to claim 1, wherein The middle part of the filter screen cylinder (600) is provided with a temporary filter screen block (610).

5. The device according to claim 1, wherein Both ends of the adjusting pipe (200) are provided with second external threaded openings (230); one end of the first air outlet pipe (300) is provided with a second internal threaded opening (350); the end of the butt joint pipe (100) away from the first internal threaded opening (120) is provided with a third internal threaded opening (110); when the adjusting pipe (200) is threadedly connected to the first air outlet pipe (300), the inner wall of the adjusting pipe (200) is flush with the inner wall of the first air outlet pipe (300).

6. A method for treating exhaust gas of a nitrogen generator according to any one of claims 1 to 5, characterized in that, The method comprises the following steps: S1, when initially installed, rotate the second air outlet pipe (400) so that the second air outlet pipe (400) is not in communication with the adjusting pipe (200); S2, when the switching mechanism (500) appears transverse movement, rotating the second air outlet pipe (400), so that the second air outlet pipe (400) and the adjusting pipe (200) communicate; after a period of time, if the switching mechanism (500) resets and no longer transverse, then rotate the second air outlet pipe (400), so that the second air outlet pipe (400) and the adjusting pipe (200) restore the state of not communicating; S3, after a period of time, if the switching mechanism (500) reciprocating transverse, then stop the pre-device maintenance.

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