Filter device of nitrogen making machine

Abstract

The utility model relates to the technical field of nitrogen making machines, and discloses a nitrogen making machine filtering device which comprises an air filter and a refrigerated dryer arranged on one side of the air filter, one side of the air filter is in threaded connection with a filtering assembly, and after a butt-joint disc and one end of the air filter are fixed through a fixing screw rod, the air filter is connected with the refrigerated dryer. The screening mechanism and the jacking mechanism are both arranged on one side of the air inlet of the air filter, when air is sucked into the air filter, the air firstly passes through the first filter screen, and the first filter screen can directly intercept dust such as large floating hair floating in the air; and meanwhile, a second filter screen movably mounted in the inner cavity of the hollow round block can secondarily filter the entering air, and the air can be preliminarily filtered through the arrangement of a first filter screen and the second filter screen, so that the cleanliness of the air entering the air filter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen making machine technical field, concretely is a kind of nitrogen making machine filter device. BACKGROUND

[0002] Nitrogen making machine refers to air as raw material, with high-quality carbon molecular sieve as adsorbent, using pressure swing adsorption principle (PSA), utilize the molecular sieve full of micropore, selective adsorption is carried out to air, to achieve the purpose of oxygen-nitrogen separation, wherein nitrogen making machine in working process, first need to be adsorbed and filtered to air by air compression filter, to reduce the probability of failure caused by the dust carried in the air in the internal of nitrogen making machine.

[0003] Such as the application number for CN202420906182.8 a kind of nitrogen making machine, including PSA nitrogen making machine, pipeline system, adsorption tower, sealing plate, rotating hole, the adsorption tower of this nitrogen making machine carries out adsorption work, servo motor drives the output shaft of speed reducer gear box to rotate, so that screw rod obtains greater torsional force, make molecular sieve enter middle cylinder, molecular sieve carries out circulation flow in adsorption tower, by the molecular sieve of flow again can start the effect of turbulence, to increase the residence time of airflow in adsorption tower, improve adsorption efficiency.

[0004] The above-mentioned nitrogen making machine when working, need to be directly filtered by air filter to air suction, since air is directly suctioned from inlet by air filter, such setting causes the dust such as size impurity in air to need to be completely dependent on air filter to process, to increase the work load of air filter.

[0005] Therefore, we propose a nitrogen making machine filter device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model is to provide a kind of nitrogen making machine filter device, to solve the above background technique and propose since air is directly suctioned from inlet by air filter, setting causes the dust such as size impurity in air to need to be completely dependent on air filter to process, increase the work load of air filter problem.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A nitrogen making machine filter device, including air filter and the freeze -drying machine of setting in the air filter one side, one side of freeze -drying machine is provided with dust tight filter, one side of dust tight filter is provided with oil mist tight filter, one side of oil mist tight filter is provided with buffer tank, one side of buffer tank is electrically connected with PLC controller, and PLC controller is electrically connected with PSA nitrogen making machine, and one side of PSA nitrogen making machine is provided with adsorption tower, the side screw connection of air filter has filter assembly, and the setting of filter assembly is suitable for the preliminary filtration of the air that enters into air filter,

[0008] The filter assembly includes a docking mechanism and a screening mechanism threadedly connected to the middle of one end of the docking mechanism. A jacking mechanism is movably mounted in the inner cavity of the screening mechanism. The screening mechanism is arranged to preliminarily filter impurities in the air. The jacking mechanism is arranged in the inner cavity of the screening mechanism to secondarily filter the air entering the docking mechanism.

[0009] Preferably, the docking mechanism includes a docking disc and a fixed screw threadedly connected around one end of the docking disc. An inlet pipe is fixedly installed in the middle of one end of the docking disc. A threaded groove is formed in the middle of one end of the inlet pipe.

[0010] Preferably, the screening mechanism includes a hollow circular block and a through groove formed in the middle of the bottom surface of one side of the hollow circular block. An externally threaded hollow column is fixedly installed in the middle of the other side of the hollow circular block.

[0011] Preferably, a plurality of through grooves are circularly and equidistantly formed around one side of the hollow circular block. A first filter screen is embeddedly installed on the inner wall of one side of the hollow circular block.

[0012] Preferably, the jacking mechanism includes a circular ring and a second filter screen embeddedly installed in the inner cavity of the circular ring. A plurality of circular rods are fixedly installed around one side of the circular ring.

[0013] Preferably, a push ring is fixedly installed at one end of the circular rod. A plurality of elastic elements are fixedly installed around the other side of the push ring. One end of the elastic element is fixedly installed to the other end of the hollow circular block.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The docking disc, air filter, fixed screw, screening mechanism, jacking mechanism, air filter, first filter screen, and second filter screen are arranged to preliminarily filter the air by the first filter screen and the second filter screen, thereby improving the cleanliness of the air entering the air filter.

[0016] 2、Through the hollow round block, the outer thread hollow column, the threaded groove, the round rod, the through groove, the elastic element, the push ring and the second filter screen, the circular ring and the second filter screen will directly impact on the first filter screen, so that the dust accumulated on the first filter screen and the second filter screen is shaken off, the cleaning of the first filter screen and the second filter screen is completed, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the filter assembly of the utility model;

[0019] Figure 3 It is the A place enlarged view of the utility model; Figure 2

[0020] Figure 4 It is the B place enlarged view of the utility model. Figure 2

[0021] In the drawing: 1, air filter;2, refrigeration dryer;3, dust tight filter;4, oil mist tight filter;5, buffer tank;6, PLC controller;7, PSA nitrogen generator;8, adsorption tower;9, filter assembly;91, butt joint mechanism;911, butt joint disc;912, fixed screw;913, inlet pipeline;914, threaded groove;92, screening mechanism;921, hollow round block;922, through groove;923, outer thread hollow column;924, through groove;925, first filter screen;93, jolt mechanism;931, circular ring;932, second filter screen;933, round rod;934, push ring;935, elastic element. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0023] Embodiment one: please refer to Figures 1-3 ​​The utility model provides a nitrogen generator filtering device, including air filter 1 and the refrigeration type drier 2 of setting in air filter 1 one side, one side of refrigeration type drier 2 is provided with dust tight filter 3, one side of dust tight filter 3 is provided with oil mist tight filter 4, one side of oil mist tight filter 4 is provided with buffer tank 5, one side of buffer tank 5 is electrically connected with PLC controller 6, and PSA nitrogen generator 7 is electrically connected with PLC controller 6, one side of PSA nitrogen generator 7 is provided with adsorption tower 8, and one side of air filter 1 is threadedly connected with filter assembly 9, and filter assembly 9 is set to be suitable for the preliminary filtration of the air entering air filter 1.

[0024] After the air is introduced through air filter 1, the gas is dried through refrigeration type drier 2, and then the air is filtered again through dust tight filter 3 and oil mist tight filter 4, and the treated air enters buffer tank 5, and the pipeline is controlled through PLC controller 6, so that the air enters PSA nitrogen generator 7 and adsorption tower 8 for nitrogen production treatment.

[0025] The structure and working principle of air filter 1, refrigeration type drier 2, dust tight filter 3, oil mist tight filter 4, buffer tank 5, PLC controller 6, PSA nitrogen generator 7 and adsorption tower 8 are the same as the working principle of air filter, refrigeration type drier, dust tight filter, oil mist tight filter, buffer tank, PLC controller, PSA nitrogen generator, adsorption tower, reduction gear box, servo motor, spiral rod, connecting rod, middle cylinder, brown pad, molecular sieve, perforated plate, sealing plate, prefilter system and silencer in CN202420906182.8.

[0026] The air filter is the existing technology at present, which is not limited here, and can be installed by purchasing finished products on the market, such as WY-304 series air filter.

[0027] Filter assembly 9 includes docking mechanism 91 and screening mechanism 92 threadedly connected to the middle part of one end of docking mechanism 91, and top driving mechanism 93 is movably installed in the inner cavity of screening mechanism 92, and screening mechanism 92 is arranged to preliminarily filter impurities in the entering air, and top driving mechanism 93 is arranged in the inner cavity of screening mechanism 92 to secondarily filter the air entering docking mechanism 91.

[0028] Docking mechanism 91 includes docking disc 911 and fixed screw rod 912 threadedly connected to the periphery of one end of docking disc 911, and entering pipeline 913 is fixedly installed in the middle part of one end of docking disc 911, threaded groove 914 is formed in the middle part of one end of entering pipeline 913, entering pipeline 913 is arranged to introduce air into air filter 1, and docking disc 911 and one end of air filter 1 are threadedly fixedly installed through fixed screw rod 912.

[0029] The screening mechanism 92 comprises a hollow circular block 921 and a through slot 922 formed in the middle of the bottom surface of one side of the hollow circular block 921, and the other middle part of the hollow circular block 921 is fixedly installed with an external thread hollow column 923, wherein the external thread hollow column 923 is threadedly installed with the threaded slot 914, so as to complete the installation of the hollow circular block 921 at one end of the inlet pipe 913.

[0030] A plurality of through grooves 924 are formed in the circular ring shape at the periphery of one side of the hollow circular block 921 at equal intervals, and the first filter screen 925 is inlaidly installed in the inner wall of one side of the hollow circular block 921, and the mesh diameter of the first filter screen 925 is greater than that of the second filter screen 932, so as to be suitable for intercepting dust of different sizes.

[0031] In the embodiment, after the butt joint disc 911 and one end of the air filter 1 are fixed by the fixed screw rod 912, the screening mechanism 92 and the jacking mechanism 93 are arranged on the air inlet side of the air filter 1, when the air is sucked into the air filter 1, the air will first pass through the first filter screen 925, which can directly intercept the dust such as floating hair floating in the air, and the second filter screen 932 movably installed in the inner cavity of the hollow circular block 921 can perform secondary filtration on the entering air, and through the arrangement of the first filter screen 925 and the second filter screen 932, the air can be preliminarily filtered, so as to improve the cleanliness of the air entering the air filter 1.

[0032] Embodiment two: the embodiment is improved on the basis of embodiment one, and specifically, please refer to Figure 4 The jacking mechanism 93 comprises a circular ring 931 and a second filter screen 932 inlaidly installed in the inner cavity of the circular ring 931, a plurality of circular rods 933 are fixedly installed at the periphery of one side of the circular ring 931 respectively, the circular rods 933 are movably installed in the inner cavity of the through groove 924, and the circular rods 933 and the circular ring 931 are moved in position by the pushing ring 934.

[0033] One end of the circular rod 933 is fixedly installed with the pushing ring 934, a plurality of elastic elements 935 are fixedly installed at the periphery of the other side of the pushing ring 934, one end of the elastic element 935 is fixedly installed with the other end of the hollow circular block 921, and the arrangement of the elastic element 935 can drive the pushing ring 934 to move in position.

[0034] In the embodiment, since the hollow circular block 921 is fixed by the external thread hollow column 923 and the threaded groove 914, the operator can disassemble the hollow circular block 921 by disassembling the external thread hollow column 923, and since the circular rod 933 is movably installed in the inner cavity of the through groove 924, one end of the elastic element 935 and the other end of the hollow circular block 921 are fixedly installed, the operator moves the circular rod 933, the circular ring 931 and the second filter screen 932 by pushing the push ring 934, so that the push ring 934 drives the elastic element 935 to be compressed, and at the same time the circular ring 931 and the second filter screen 932 directly impact on the first filter screen 925, so that the dust accumulated on the first filter screen 925 and the second filter screen 932 is shaken off, thereby completing the cleaning of the first filter screen 925 and the second filter screen 932, which is convenient to use.

[0035] Working principle: after the butt joint disc 911 and one end of the air filter 1 are fixed by the fixed screw rod 912, the screening mechanism 92 and the jacking mechanism 93 are arranged on the air inlet side of the air filter 1, when the air is sucked into the air filter 1, the air will first pass through the first filter screen 925, which can directly intercept the dust such as floating hair in the air, and the second filter screen 932 movably installed in the inner cavity of the hollow circular block 921 can perform secondary filtration on the entering air, the arrangement of the first filter screen 925 and the second filter screen 932 can preliminarily filter the air, thereby improving the cleanliness of the air entering the air filter 1, since the hollow circular block 921 is fixed by the external thread hollow column 923 and the threaded groove 914, the operator can disassemble the hollow circular block 921 by disassembling the external thread hollow column 923, and since the circular rod 933 is movably installed in the inner cavity of the through groove 924, one end of the elastic element 935 and the other end of the hollow circular block 921 are fixedly installed, the operator moves the circular rod 933, the circular ring 931 and the second filter screen 932 by pushing the push ring 934, so that the push ring 934 drives the elastic element 935 to be compressed, and at the same time the circular ring 931 and the second filter screen 932 directly impact on the first filter screen 925, so that the dust accumulated on the first filter screen 925 and the second filter screen 932 is shaken off, thereby completing the cleaning of the first filter screen 925 and the second filter screen 932.

[0036] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0037] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nitrogen generator filtering device, comprising an air filter (1) and a refrigeration dryer (2) arranged on one side of the air filter (1), one side of the refrigeration dryer (2) is provided with a dust tight filter (3), one side of the dust tight filter (3) is provided with an oil mist tight filter (4), one side of the oil mist tight filter (4) is provided with a buffer tank (5), one side of the buffer tank (5) is electrically connected with a PLC controller (6), the PLC controller (6) is electrically connected with a PSA nitrogen generator (7), one side of the PSA nitrogen generator (7) is provided with an adsorption tower (8), characterized in that: One side of the air filter (1) is threadedly connected with a filter assembly (9), which is arranged to preliminarily filter the air entering the air filter (1); The filter assembly (9) comprises a docking mechanism (91) and a screening mechanism (92) threadedly connected to the middle of one end of the docking mechanism (91), and a jacking mechanism (93) movably mounted in the inner cavity of the screening mechanism (92), the screening mechanism (92) is arranged to preliminarily filter the impurities in the entering air, and the jacking mechanism (93) is arranged in the inner cavity of the screening mechanism (92) to secondarily filter the air entering the docking mechanism (91).

2. The filtering device of claim 1, wherein: The docking mechanism (91) comprises a docking disc (911) and a fixed screw (912) threadedly connected to the periphery of one end of the docking disc (911), and an inlet pipe (913) fixedly mounted at the middle of one end of the docking disc (911), and a threaded groove (914) is formed at the middle of one end of the inlet pipe (913).

3. The filtering device of claim 1, wherein: The screening mechanism (92) comprises a hollow circular block (921) and a through groove (922) formed at the middle of the bottom surface of one side of the hollow circular block (921), and an outer threaded hollow column (923) fixedly mounted at the middle of the other side of the hollow circular block (921).

4. The filter device of claim 3, wherein: A plurality of through grooves (924) are circularly and equidistantly formed at the periphery of one side of the hollow circular block (921), and a first filter screen (925) is inlaidly mounted on the inner wall of one side of the hollow circular block (921).

5. The filter device of claim 1, wherein: The jacking mechanism (93) comprises a circular ring (931) and a second filter screen (932) inlaidly mounted in the inner cavity of the circular ring (931), and a plurality of circular rods (933) are fixedly mounted at the periphery of one side of the circular ring (931).

6. The filter device of claim 5, wherein: One end of the circular rod (933) is fixedly mounted with a pushing ring (934), and a plurality of elastic elements (935) are fixedly mounted at the periphery of the other side of the pushing ring (934), wherein one end of the elastic element (935) is fixedly mounted with the other end of the hollow circular block (921).

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