Nitrogen-oxygen separation device of nitrogen generation system

Abstract

The utility model discloses a nitrogen-oxygen separating device of a nitrogen making system, which comprises a supporting base, a separating box body is connected with the top end of the supporting base, a molecular sieve is arranged in the separating box body, a groove is fixedly arranged on the inner wall of the bottom end of the separating box body, and a through groove is communicated with the wall body of the top end of the separating box body. A through groove is formed in the separation box body, the through groove and the groove are located in the same vertical plane, the molecular sieve penetrates through the through hole and extends into the groove to be placed, a movable frame is arranged on one side of the separation box body in a communicating mode, the movable frame comprises a mounting plate, an air inlet pipe is arranged on the mounting plate in a communicating mode, and a dust screen is arranged on the air inlet pipe. Compared with the prior art, the molecular sieve nitrogen preparation device has the advantages that efficient preparation of nitrogen is achieved through the molecular sieve, the molecular sieve can be directly detached under the cooperation of the through groove, replacement and maintenance work can be rapidly carried out, and the nitrogen separation efficiency of the molecular sieve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen making technical field, concretely points to a kind of nitrogen-oxygen separation device of nitrogen making system. BACKGROUND

[0002] Nitrogen is commonly used protective gas, isolation gas and carrier gas.Nitrogen making device includes compressor and nitrogen-oxygen separation device, first air is compressed by compressor, then nitrogen-oxygen separation device is realized to separate preparation of nitrogen, nitrogen-oxygen separation is generally realized directly by molecular sieve;

[0003] Molecular sieve plays the role of adsorbing oxygen in nitrogen making system, but with the passage of time, molecular sieve will gradually saturate, and adsorption capacity decreases, resulting in the decrease of nitrogen purity, and molecular sieve is easily affected by dust, thereby affecting efficiency, which needs a kind of efficient nitrogen-oxygen separation device of nitrogen making system. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is the saturation of molecular sieve and the influence of dust on nitrogen making efficiency, and an efficient nitrogen-oxygen separation device of nitrogen making system is provided.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a nitrogen-oxygen separation device of nitrogen making system, comprising a supporting base, a separation box body is connected at the top end of the supporting base, a molecular sieve is arranged in the separation box body, the molecular sieve is a nitrogen sieve, a groove is fixedly arranged on the inner wall of the bottom end of the separation box body, a through groove is communicated on the top wall of the separation box body, the through groove and the groove are on the same vertical plane, the molecular sieve extends into the groove through the through hole, an annular limiting groove is arranged in the separation box body and closely attached to the outer wall of the edge of the molecular sieve, a moving frame is communicated on one side of the separation box body, a conical pipe is communicated on the other side of the separation box body, an exhaust pipe is arranged at the end of the conical pipe away from the separation box body, a draught fan is arranged in the exhaust pipe, the moving frame comprises a mounting plate, an air inlet pipe is communicated on the mounting plate, and a dust screen is arranged on the air inlet pipe.

[0006] As an improvement, a group of sliding grooves are symmetrically arranged on the top surface of the separation box body, a sliding block is slidably arranged in each sliding groove, and a sliding plate close to the top surface of the separation box body is connected at the top end of the sliding blocks.

[0007] As an improvement, a group of special-shaped plates are symmetrically and slidably arranged on the inner wall of the bottom end of the separation box body and located on both sides of the groove, a group of connecting plates are symmetrically arranged on the inner wall of the bottom end of the separation box body, a bidirectional threaded rod is rotatably arranged between the connecting plates and threadedly connected with the special-shaped plates, a driving motor is arranged on the connecting plate and drives the bidirectional threaded rod, and the other end of the special-shaped plate is closely attached to the outer wall of the molecular sieve, thereby improving the stability of the fixation of the molecular sieve.

[0008] As the improvement, the exhaust pipe end is provided with an exhaust mesh plate close to the exhaust fan, and an exhaust valve is arranged on the exhaust pipe, so that the air can flow in one direction, and the nitrogen production work is ensured to be carried out smoothly.

[0009] As the improvement, a plurality of mounting bolts are arranged on the mounting plate and are bolted to the outer wall of the separation box, so that the mounting plate can be conveniently disassembled, and the mobile frame can be conveniently disassembled and maintained.

[0010] As the improvement, the mounting plate is provided with an extension frame extending into the separation box, and the extension frame is provided with an activated carbon adsorption plate, so that the air can be purified, the influence on the molecular sieve is reduced, and the working efficiency of the molecular sieve is ensured.

[0011] As the improvement, the top surface of the extension frame is provided with a clamping groove matched with the activated carbon adsorption plate, the extension frame is provided with a sealing groove closely attached to the outer wall of the edge of the activated carbon adsorption plate, and the activated carbon adsorption plate is arranged in the sealing groove through the clamping groove, so that the activated carbon adsorption plate can be conveniently mounted and dismounted, and the maintenance efficiency is improved.

[0012] As the improvement, a group of hydraulic telescopic rods are symmetrically arranged in the extension frame and located between the activated carbon adsorption plate and the mounting plate, the output ends of the hydraulic telescopic rods are commonly connected with a lifting plate, the lifting plate is provided with a cleaning brush close to the activated carbon adsorption plate, and the mounting plate is provided with a dust suction valve matched with the cleaning brush, so that the activated carbon adsorption plate can be conveniently cleaned regularly without being dismounted, the maintenance frequency is reduced, and the use efficiency is improved.

[0013] Compared with the prior art, the nitrogen gas is efficiently prepared through the molecular sieve, the molecular sieve can be directly dismounted and replaced and maintained quickly under the cooperation of the through groove, the maintenance time is reduced, the efficiency of the molecular sieve in separating nitrogen gas is ensured, and the nitrogen gas is efficiently prepared.

[0014] Through the dismounting of the mobile frame, the activated carbon adsorption plate and the dust separation net plate can be conveniently dismounted and cleaned, the influence of dust on the molecular sieve is reduced, and the nitrogen production efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a first perspective view of a nitrogen-oxygen separation device of a nitrogen production system.

[0016] Figure 2 is a second perspective view of a nitrogen-oxygen separation device of a nitrogen production system.

[0017] Figure 3 is a sectional perspective view of a nitrogen-oxygen separation device of a nitrogen production system.

[0018] Figure 4 is a moving frame profile perspective view of the nitrogen-oxygen separation device of the nitrogen making system.

[0019] Figure 5 is Figure 3 the structural schematic view of part A in the middle.

[0020] Figure 6 is Figure 4 the structural schematic view of part B in the middle.

[0021] As shown in the figure: 1, support base; 2, separation box; 3, molecular sieve; 4, groove; 5, through slot; 6, annular limit slot; 7, moving frame; 8, conical pipe; 9, exhaust pipe; 10, exhaust fan; 11, mounting plate; 12, air inlet pipe; 13, dust screen; 14, sliding groove; 15, sliding block; 16, sliding plate; 17, special-shaped plate; 18, connecting plate; 19, two-way threaded rod; 20, drive motor; 21, exhaust screen plate; 22, exhaust valve; 23, mounting bolt; 24, extension frame; 25, activated carbon adsorption plate; 26, clamping groove; 27, sealing groove; 28, hydraulic telescopic rod; 29, lifting plate; 30, cleaning brush; 31, dust suction valve. DETAILED DESCRIPTION

[0022] The utility model makes further detailed description in combination with the drawings.

[0023] In combination with the drawings Figures 1-6 As shown in the figure, a nitrogen-oxygen separation device of a nitrogen making system, including support base 1, support base 1 top end connection is equipped with separation box 2, separation box 2 is equipped with molecular sieve 3 in, molecular sieve 3 is nitrogen sieve, separation box 2 one side is equipped with moving frame 7, separation box 2 another side is equipped with conical pipe 8, conical pipe 8 is equipped with exhaust pipe 9 away from separation box 2 one end, exhaust pipe 9 is equipped with exhaust fan 10 in, moving frame 7 includes mounting plate 11, mounting plate 11 is equipped with air inlet pipe 12 on intercommunication, air inlet pipe 12 is equipped with dust screen 13, mounting plate 11 is evenly equipped with a plurality of installation bolt 23 with separation box 2 outer wall bolt connection, mounting plate 11 is equipped with extension frame 24 extending into separation box 2, extension frame 24 is equipped with activated carbon adsorption plate 25 in, exhaust pipe 9 end is equipped with exhaust screen plate 21 close to exhaust fan 10, exhaust pipe 9 is equipped with exhaust valve 22;

[0024] Through the above structure, the equipment is placed by the support base 1, the output end of the compressor is connected with the air inlet pipe 12, then the air extractor 10 is started to extract the compressed air into the equipment, the dust screen 13 on the moving frame 7 filters out the large particle impurities in the compressed air, then the activated carbon adsorption plate 25 further removes the impurities in the compressed air, then the molecular sieve 3 separates the purified compressed air to separate and take out the nitrogen, the nitrogen enters the exhaust pipe 9 through the conical pipe 8, the exhaust valve 22 on the exhaust pipe 9 releases the nitrogen for use, and the exhaust screen plate 21 prevents external impurities from approaching the air extractor 10.

[0025] The groove 4 is fixedly arranged on the inner wall of the bottom end of the separation box 2, the through groove 5 is arranged in communication on the top wall of the separation box 2, the through groove 5 and the groove 4 are on the same vertical plane, the molecular sieve 3 extends through the through hole and is placed in the groove 4, the annular limiting groove 6 is arranged in the separation box 2 and closely abuts the edge outer wall of the molecular sieve 3, a group of sliding grooves 14 are symmetrically arranged on the top surface of the separation box 2, sliding blocks 15 are slidably arranged in the sliding grooves 14, the sliding blocks 15 are jointly connected with the sliding plate 16 close to the top surface of the separation box 2, the sliding plate 16 is connected and limited with the separation box 2 through bolts, a group of special-shaped plates 17 are symmetrically and slidably arranged on the inner wall of the bottom end of the separation box 2 and located on both sides of the groove 4, a group of connecting plates 18 are symmetrically arranged on the inner wall of the bottom end of the separation box 2, the bidirectional threaded rod 19 is rotatably arranged between the connecting plates 18 and threadedly connected with the special-shaped plate 17, and the driving motor 20 is arranged on the connecting plate 18 and drives the bidirectional threaded rod 19.

[0026] Through the above structure, the molecular sieve 3 is regularly disassembled, repaired or replaced after being used for a period of time, so as to ensure the nitrogen production efficiency. When replacing, the bolts on the sliding plate 16 are removed, the sliding plate 16 is pushed to expose the through groove 5, the bidirectional threaded rod 19 is driven to rotate by the driving motor 20, the special-shaped plate 17 is away from the molecular sieve 3, the molecular sieve 3 is taken out, the new molecular sieve 3 is placed in the groove 4 through the through groove 5, the annular limiting groove 6 limits the molecular sieve 3, then the bidirectional threaded rod 19 is reversely rotated by the driving motor 20, the special-shaped plate 17 moves towards the molecular sieve 3 and tightly abuts the outer wall of the molecular sieve 3, the limiting and installation of the molecular sieve 3 are completed, finally the sliding plate 16 is pushed to seal the through groove 5, and the sliding plate 16 is fixed by the bolts.

[0027] The top surface of the extension frame 24 is provided with a clamping groove 26 matched with the activated carbon adsorption plate 25, the extension frame 24 is provided with a sealing groove 27 close to the edge outer wall of the activated carbon adsorption plate 25, the activated carbon adsorption plate 25 is arranged in the sealing groove 27 through the clamping groove 26, a group of hydraulic telescopic rods 28 are symmetrically arranged in the extension frame 24 and located between the activated carbon adsorption plate 25 and the mounting plate 11, the output ends of the hydraulic telescopic rods 28 are commonly connected with a lifting plate 29, the lifting plate 29 is provided with a cleaning brush 30 on the side close to the activated carbon adsorption plate 25, and the mounting plate 11 is provided with a dust suction valve 31 matched with the cleaning brush 30 in communication;

[0028] Through the above structure, the installation bolt 23 on the mounting plate 11 is regularly removed, the movable frame 7 can be taken out, the dust screen 13 is cleaned, the activated carbon adsorption plate 25 is pulled out from the sealing groove 27, a new activated carbon adsorption plate 25 is replaced and placed in the sealing groove 27 through the clamping groove 26, the movable frame 7 is fixed again, and the nitrogen production work can be continued, the damage to the molecular sieve 3 can be reduced through the efficient work of the activated carbon adsorption plate 25, the nitrogen production efficiency is improved, the cleaning brush 30 can clean the large particles adhered to the activated carbon adsorption plate 25 through the up-down sliding of the lifting plate 29 pushed by the hydraulic telescopic rod 28 during use or non-use, the damage risk is reduced, the service life is improved, the replacement frequency is reduced, and the nitrogen production efficiency is ensured.

[0029] In the specific implementation of the utility model, first of all, the equipment is placed through the supporting base 1, the output end of the compressor is connected with the air inlet pipe 12, then the air suction fan 10 can be started to suck the compressed air into the equipment, the dust screen 13 on the movable frame 7 filters out the large particle impurities in the compressed air, then the activated carbon adsorption plate 25 further removes the impurities in the compressed air, then the molecular sieve 3 works to separate the purified compressed air, nitrogen is separated and taken out, the nitrogen enters the air exhaust pipe 9 through the conical pipe 8, the air exhaust valve 22 on the air exhaust pipe 9 releases the nitrogen for use, and the air exhaust screen plate 21 prevents external impurities from approaching the air suction fan 10;

[0030] After being used for a period of time, the molecular sieve 3 is regularly disassembled, repaired or replaced, the nitrogen production efficiency is ensured, when replacing, only the bolt on the sliding plate 16 is removed, the sliding plate 16 is pushed to expose the through groove 5, then the driving motor 20 drives the bidirectional threaded rod 19 to rotate, the special-shaped plate 17 is away from the molecular sieve 3, the molecular sieve 3 can be taken out, a new molecular sieve 3 is placed in the groove 4 through the through groove 5, the annular limiting groove 6 limits the molecular sieve 3, then the driving motor 20 drives the bidirectional threaded rod 19 to reversely rotate, the special-shaped plates move towards each other until abutting against the outer wall of the molecular sieve 3, the limiting and mounting operation of the molecular sieve 3 is completed, finally, the sliding plate 16 is pushed to seal the through groove 5, and the sliding plate 16 is fixed by using the bolt;

[0031] Periodically, the mounting bolt 23 on the mounting plate 11 is removed, that is, the moving frame 7 is taken out, the dust screen 13 is cleaned, and the activated carbon adsorption plate 25 is pulled out from the sealing groove 27, a new activated carbon adsorption plate 25 is placed in the sealing groove 27 through the clamping groove 26, the moving frame 7 is fixed again, and the nitrogen production work can be continued. The high-efficiency work of the activated carbon adsorption plate 25 can reduce the damage to the molecular sieve 3, thereby improving the nitrogen production efficiency. During use or non-use, the hydraulic telescopic rod 28 pushes the lifting plate 29 to slide up and down, so that the cleaning brush 30 can clean the large-particle impurities adhered to the activated carbon adsorption plate 25, thereby reducing the damage risk, improving the service life, reducing the replacement frequency, and ensuring the nitrogen production efficiency.

[0032] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by the present application, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A nitrogen-oxygen separation device of a nitrogen production system, comprising a support base (1), a separation box (2) is connected at the top end of the support base (1), a molecular sieve (3) is arranged in the separation box (2), and the molecular sieve (3) is a nitrogen sieve, characterized in that: a groove (4) is fixedly arranged on the inner wall of the bottom end of the separation box (2), a through groove (5) is communicatively arranged on the top wall of the separation box (2), the through groove (5) and the groove (4) are on the same vertical plane, the molecular sieve (3) extends through the through hole and is placed in the groove (4), an annular limiting groove (6) is arranged in the separation box (2) and closely abuts the outer wall of the edge of the molecular sieve (3), a moving frame (7) is communicatively arranged on one side of the separation box (2), a conical pipe (8) is communicatively arranged on the other side of the separation box (2), an exhaust pipe (9) is arranged at the end of the conical pipe (8) away from the separation box (2), a draught fan (10) is arranged in the exhaust pipe (9), the moving frame (7) comprises a mounting plate (11), an air inlet pipe (12) is communicatively arranged on the mounting plate (11), and a dust separation net (13) is arranged on the air inlet pipe (12).

2. The nitrogen-oxygen separation device of claim 1, wherein: a group of slide grooves (14) are symmetrically arranged on the top surface of the separation box (2), a slide block (15) is slidably arranged in each of the slide grooves (14), a slide plate (16) is commonly connected at the top end of the slide blocks (15) and close to the top surface of the separation box (2), and the slide plate (16) is connected and limited with the separation box (2) through bolts.

3. The nitrogen-oxygen separation device of claim 1, wherein: a group of special-shaped plates (17) are symmetrically and slidably arranged on the inner wall of the bottom end of the separation box (2) and located on both sides of the groove (4), a group of connecting plates (18) are symmetrically arranged on the inner wall of the bottom end of the separation box (2), a bidirectional threaded rod (19) is rotatably arranged between the connecting plates (18) and threadedly connected with the special-shaped plates (17), a driving motor (20) is arranged on the connecting plate (18) and drives the bidirectional threaded rod (19), and the other end of the special-shaped plate (17) is arranged close to the outer wall of the molecular sieve (3).

4. The nitrogen-oxygen separation device of claim 1, wherein: an exhaust net plate (21) is arranged on the end of the exhaust pipe (9) close to the draught fan (10), and an exhaust valve (22) is arranged on the exhaust pipe (9).

5. The nitrogen-oxygen separation device of claim 1, wherein: a plurality of mounting bolts (23) are uniformly arranged on the mounting plate (11) and boltedly connected with the outer wall of the separation box (2).

6. The nitrogen-oxygen separation device of claim 1, wherein: an extension frame (24) is arranged on the mounting plate (11) and extends into the separation box (2), and an activated carbon adsorption plate (25) is arranged in the extension frame (24).

7. The nitrogen-oxygen separation device of claim 6, wherein: a clamping groove (26) is communicatively arranged on the top surface of the extension frame (24) and matched with the activated carbon adsorption plate (25), a sealing groove (27) is arranged in the extension frame (24) and closely abuts the outer wall of the edge of the activated carbon adsorption plate (25), and the activated carbon adsorption plate (25) is arranged in the sealing groove (27) through the clamping groove (26).

8. The nitrogen-oxygen separation device of claim 6, wherein: A set of hydraulic telescopic rods (28) are symmetrically arranged in the extension frame (24) between the activated carbon adsorption plate (25) and the mounting plate (11), the output ends of the hydraulic telescopic rods (28) are jointly connected with a lifting plate (29), the lifting plate (29) is provided with a cleaning brush (30) close to one side of the activated carbon adsorption plate (25), and the mounting plate (11) is provided with a dust suction valve (31) matched with the cleaning brush (30).

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