CN213853800U - PSA pressure swing adsorption nitrogen production system - Google Patents

Abstract

The application relates to a PSA pressure swing adsorption nitrogen production system, which comprises an adsorption tower which is vertically arranged, a first auxiliary cylinder and a second auxiliary cylinder which are communicated with the side wall of the adsorption tower and are symmetrically arranged around the axis of the adsorption tower, a first auxiliary cylinder, opening part can be dismantled respectively on the vice section of thick bamboo of second and be connected with the fender lid, be equipped with two slide rail strips that are parallel to each other and the level sets up in the adsorption tower, the upper surface of slide rail strip is opened along its length direction has the spout, the one end of spout extends to on the diapire of first vice section of thick bamboo inner chamber, the other end extends to on the diapire of the vice section of thick bamboo inner chamber of second, it has the draw runner to slide in the spout, erect between two draw runners and be used for carrying out absorbent adsorption component to oxygen, be equipped with in the first vice section of thick bamboo and be used for carrying out the seal assembly one that separates with the adsorption tower, be equipped with in the vice section of thick bamboo of second and be used for the seal assembly two that separate with the adsorption tower, still be equipped with the drive assembly who is used for promoting the draw runner on the first vice section of thick bamboo. This application need not the advantage of shut down when having the change molecule sieve.

Description

PSA pressure swing adsorption nitrogen production system

Technical Field

The application relates to the field of nitrogen making equipment, in particular to a PSA pressure swing adsorption nitrogen making system.

Background

Nitrogen is a colorless, odorless, inert gas that is chemically inert. The application range of nitrogen is very wide, and when the nitrogen is used in the food packaging industry, the nitrogen can be used as protective gas for food preservation, so that the aim of long-term preservation is fulfilled; the high-purity nitrogen can be used as carrier gas for instruments such as a chromatograph; in the chemical industry, nitrogen can also be used as displacement gas, washing gas and safety guarantee gas.

PSA pressure swing adsorption nitrogen system during operation among the correlation technique lets in the adsorption tower with compressed air after filtering in, is equipped with in the adsorption tower to be used for carrying out the molecular sieve board that adsorbs to oxygen, and nitrogen gas discharges from the bottom of adsorption tower and collects in the collecting vessel, and the oxygen in the adsorption tower discharges through the muffler rather than the intercommunication to the preparation to nitrogen gas has been realized.

The molecular sieve plate has a certain service life, and when the molecular sieve plate gradually loses efficacy, the adsorption effect of the molecular sieve plate on oxygen can be greatly reduced, so that the molecular sieve plate needs to be replaced regularly in order to ensure the purity of nitrogen preparation.

However, when the molecular sieve plate in the adsorption tower in the related art is replaced, the whole PSA pressure swing adsorption nitrogen generation system needs to be shut down, and after the molecular sieve plate is replaced, the PSA pressure swing adsorption nitrogen generation system can be restarted, so that the time consumed by restarting the PSA pressure swing adsorption nitrogen generation system is long, and the obvious defects exist.

SUMMERY OF THE UTILITY MODEL

Need shut down the problem in order to improve when changing the molecular sieve board, this application provides a PSA pressure swing adsorption nitrogen generation system.

The application provides a PSA pressure swing adsorption nitrogen generation system adopts following technical scheme:

a PSA pressure swing adsorption nitrogen making system comprises an adsorption tower which is vertically arranged, a first auxiliary cylinder and a second auxiliary cylinder are communicated on the side wall of the adsorption tower, the first auxiliary cylinder and the second auxiliary cylinder are symmetrically arranged about the axis of the adsorption tower, a blocking cover is detachably connected with openings and openings on the first auxiliary cylinder and the second auxiliary cylinder respectively, two slide rails which are parallel to each other and horizontally arranged are arranged in the adsorption tower, a sliding groove is formed in the upper surface of each slide rail along the length direction of the slide rail, one end of the sliding groove extends to the bottom wall of an inner cavity of the first auxiliary cylinder, the other end of the sliding groove extends to the bottom wall of an inner cavity of the second auxiliary cylinder, sliding strips slide in the sliding groove, an adsorption component for adsorbing oxygen is erected between the two sliding strips, a first sealing component for separating from the adsorption tower is arranged in the first auxiliary cylinder, a second sealing component for separating from the adsorption tower is arranged in the second auxiliary cylinder, and the first auxiliary cylinder is also provided with a driving assembly for pushing the slide bar.

Through adopting above-mentioned technical scheme, during the change, seal assembly one is in the encapsulated situation, seal assembly two is in the open mode, operating personnel opens the fender lid at first pair section of thick bamboo top, then put into first pair section of thick bamboo with new adsorption component, the draw runner is put into the spout, with the top of keeping off lid reconnection at first pair section of thick bamboo, open seal assembly one, promote the draw runner through drive assembly and slide in the spout, the draw runner takes new adsorption component to the adsorption tower in, simultaneously new adsorption component pushes old adsorption component into the vice section of thick bamboo of second in, operating personnel seals seal assembly two this moment, operating personnel can open the fender lid at the vice section of thick bamboo top of second and take out old adsorption component. This application has the advantage of changing the absorption component and need not the shut down through the setting of first vice section of thick bamboo, the vice section of thick bamboo of second, seal assembly one, seal assembly two.

Optionally, the first sealing assembly includes a first partition plate located outside the first secondary cylinder, one side of the first partition plate passes through a side wall of the first secondary cylinder and extends into the first secondary cylinder, and the first partition plate is respectively closely attached to a top wall, a side wall and a bottom wall of an inner cavity of the first secondary cylinder; the second sealing component comprises a second partition plate located outside the second auxiliary cylinder, one side of the second partition plate penetrates through the side wall of the second auxiliary cylinder and extends into the second auxiliary cylinder, and the second partition plate is tightly attached to the top wall, the side wall and the bottom wall of the inner cavity of the second auxiliary cylinder respectively.

Through adopting above-mentioned technical scheme, the principle setting of the similar drawer of first baffle is on first vice section of thick bamboo, can realize closing and opening of seal assembly one through the push-and-pull to first baffle, and seal assembly two sets up in the same way.

Optionally, the drive assembly is including sliding the push rod of wearing to establish in first pair bobbin wall, the one end of push rod extends to in the spout, and the other end extends outside first pair bobbin, the one end that the push rod is located the spout is connected with and pushes away the strip, it slides in the spout to push away the strip, the push rod is located the pole body of spout and is overlapped and be equipped with the elasticity pressure spring that is used for the shore to push away the strip.

Through adopting above-mentioned technical scheme, operating personnel places new adsorption component back in first pair section of thick bamboo, the draw runner is placed in the spout, the elasticity pressure spring is in compression state, operating personnel loosens the push rod, the elasticity of elasticity pressure spring is used in pushing away the strip, thereby promote the draw runner and slide in the spout, with this send new adsorption component to the adsorption tower in, new adsorption component moves the in-process to the adsorption tower from first pair section of thick bamboo, new adsorption component can push away old adsorption component in the adsorption tower to the second pair section of thick bamboo in step.

Optionally, the adsorption component is including connecting the carrier strip on two draw runners, be connected with the carrier bar of vertical setting on the carrier strip, sliding sleeve is equipped with a plurality of molecule sieve on the carrier bar, is equipped with the spacer ring between two adjacent molecule sieves, the spacer ring slip cap is established on the carrier bar.

Through adopting above-mentioned technical scheme, the molecular sieve can adsorb the oxygen among the compressed air, and nitrogen gas can discharge the adsorption tower, takes out the adsorption tower with old adsorption component after, can change the molecular sieve, and bearing strip, carrier bar, spacer ring can used repeatedly.

Optionally, the first partition plate is connected to a first limiting strip on the side wall in the first auxiliary cylinder, and the second partition plate is connected to a second limiting strip on the side wall in the second auxiliary cylinder.

Through adopting above-mentioned technical scheme, first spacing has limiting displacement to first baffle, when having reduced operating personnel push-and-pull first baffle, pulls out the possibility of first vice section of thick bamboo with first baffle, and the second baffle sets up like the same.

Optionally, an inner wall of the first auxiliary cylinder is provided with a first sealing groove for inserting the first partition plate at one side in the first auxiliary cylinder, and an inner wall of the second auxiliary cylinder is provided with a second sealing groove for inserting the second partition plate at one side in the second auxiliary cylinder.

Through adopting above-mentioned technical scheme, after the adsorption component change was accomplished, the first closed assembly was in the encapsulated situation, and one side that first baffle was located first pair section of thick bamboo is inserted and is established in first seal groove to this has improved the sealing performance between first pair section of thick bamboo and the adsorption tower, has reduced the possibility that first pair section of thick bamboo gas leakage leads to the nitrogen gas in the adsorption tower to spill, and the second seal groove sets up with the same reason.

Optionally, a synchronizing rod is connected between one ends of the two push rods, which are located outside the first sub-cylinder.

Through adopting above-mentioned technical scheme, the setting up of synchronizing bar makes operating personnel can stimulate two push rods simultaneously by one hand to this has made things convenient for the change to absorption assembly.

Optionally, a first fixing plate is connected to the outside of the first auxiliary cylinder, the first partition plate is detachably connected to the first fixing plate, a second fixing plate is connected to the outside of the second auxiliary cylinder, and the second partition plate is detachably connected to the second fixing plate.

Through adopting above-mentioned technical scheme, the adsorption component is changed and is accomplished the back, carries out the bolt with first baffle and fixed plate to realized locking to first baffle, reduced the first baffle and received the unexpected possibility that takes place to remove of external force, fixed block two is the same reason and sets up.

To sum up, the application comprises the following beneficial technical effects: when an operator puts a new adsorption assembly into the first auxiliary cylinder, the first auxiliary cylinder is separated from the adsorption tower, and the old adsorption assembly in the adsorption tower works; when operating personnel takes out the vice section of thick bamboo of second with old adsorption component, the vice section of thick bamboo of second separates with the adsorption tower, and new adsorption component work in the adsorption tower to when this changes adsorption component, have adsorption component to be in operating condition in the adsorption tower all the time, need not to shut down with this and just can realize changing adsorption component.

Drawings

FIG. 1 is a schematic structural diagram for embodying the present application;

FIG. 2 is a cross-sectional view of an adsorption column useful in embodying the present application;

FIG. 3 is an exploded view of the connection among the molecular sieve plate, the spacer ring and the carrier bar in the present application;

FIG. 4 is a cross-sectional view of a push bar for embodying the present application;

fig. 5 is a schematic structural view for embodying the first separator in the present application.

Description of reference numerals: 1. an adsorption tower; 2. an air outlet; 3. an air inlet; 4. a muffler; 5. a first sub-cartridge; 6. a second sub-drum; 7. a blocking cover; 8. a slide rail bar; 81. a chute; 9. a slide bar; 10. a first separator; 11. a second separator; 121. a push rod; 122. pushing the strips; 123. an elastic pressure spring; 131. a carrier strip; 132. a carrier bar; 133. a molecular sieve plate; 134. a spacer ring; 135. a through hole; 14. a first limit strip; 15. a second limit strip; 51. a first seal groove; 61. a second seal groove; 16. a synchronization lever; 17. a first fixing plate; 18. and a second fixing plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses PSA pressure swing adsorption nitrogen generation system. Referring to fig. 1, the PSA pressure swing adsorption nitrogen production system includes an adsorption tower 1, a muffler 4, a first sub-column 5, a second sub-column 6, an adsorption module, a driving module, a first sealing module, and a second sealing module.

Referring to fig. 1, an adsorption tower 1 is vertically arranged, the top of the adsorption tower is provided with an air outlet 2, and the bottom of the adsorption tower is provided with an air inlet 3; compressed air enters the adsorption tower 1 through the air inlet 3, the adsorption component absorbs oxygen in the air entering the adsorption tower 1, and nitrogen is discharged out of the adsorption tower 1 through the air outlet 2.

Referring to fig. 1, the silencer 4 is connected to the adsorption tower 1, and after the adsorption component completes the adsorption of oxygen in the adsorption tower 1 and discharges nitrogen from the gas outlet 2, the silencer 4 discharges the oxygen adsorbed by the adsorption component in a manner adopted in the prior art.

Referring to fig. 2 and 3, the first auxiliary cylinder 5 and the second auxiliary cylinder 6 are both vertically arranged, the top walls of the first auxiliary cylinder 5 and the second auxiliary cylinder 6 are respectively opened, and the opening parts are bolted with blocking covers 7; the first auxiliary cylinder 5 and the second auxiliary cylinder 6 are both communicated with the side wall of the adsorption tower 1, and the first auxiliary cylinder 5 and the second auxiliary cylinder 6 are symmetrically arranged about the axis of the adsorption tower 1.

Referring to fig. 2 and 3, the adsorption assembly includes a carrier strip 131, a carrier rod 132, a plurality of molecular sieve plates 133, and a spacer ring 134; the carrying strip 131 is horizontally arranged, and the carrying rod 132 is vertically arranged and is fixedly connected to the upper surface of the carrying strip 131 at the bottom end.

Referring to fig. 3, the molecular sieve plate 133 is horizontally disposed, the cross section of the molecular sieve plate is circular, a gap is formed between the molecular sieve plate 133 and the inner wall of the adsorption tower 1, and the molecular sieve plate 133 is slidably sleeved on the bearing rod 132. The molecular sieve plate 133 in this application may be any one or more of a palladium molecular sieve plate, a carbon molecular sieve plate, or a zeolite molecular sieve plate.

Referring to fig. 3, the plurality of through holes 135 are formed in the molecular sieve plate 133, and the arrangement of the through holes 135 increases the contact area between the molecular sieve plate 133 and the compressed air, so that the adsorption effect on oxygen is improved, and the improvement of the purity of nitrogen is facilitated.

Referring to fig. 3, one separating ring 134 is disposed between two adjacent molecular sieve plates 133, and the separating ring 134 is slidably disposed on the bearing rod 132. The arrangement of the separation ring 134 further increases the contact area of the molecular sieve plate 133 and the compressed air, which is beneficial to improving the purity of the oxygen preparation.

Referring to fig. 4, the inner wall of the adsorption tower 1 is fixedly connected with two slide rail bars 8 which are parallel to each other and horizontally arranged, and the slide rail bars 8 are parallel to a connecting line among the first secondary cylinder 5, the adsorption tower 1 and the second secondary cylinder 6; the upper surface of the slide rail bar 8 is provided with a sliding groove 81 along the length direction, one end of the sliding groove 81 extends to the bottom wall of the inner cavity of the first auxiliary cylinder 5, and the other end extends to the bottom wall of the inner cavity of the second auxiliary cylinder 6.

Referring to fig. 4, two ends of the lower surface of the carrier bar 131 are respectively and fixedly connected with a slide bar 9, the slide bar 9 slides in the sliding groove 81, and the upper surface of the slide bar 9, the bottom wall of the inner cavity of the first secondary cylinder 5 and the bottom wall of the inner cavity of the second secondary cylinder 6 are coplanar.

Referring to fig. 4, the driving assembly is arranged on the first secondary drum 5, and is used for pushing the slide bar 9 to slide in the sliding groove 81; the driving assembly comprises a push rod 121, a push strip 122 and an elastic pressure spring 123.

Referring to fig. 4, the push rod 121 is slidably inserted into the bottom wall of the first auxiliary cylinder 5, one end of the push rod 121 extends out of the first auxiliary cylinder 5, the other end extends into the sliding groove 81, and the push rod 121 is parallel to the sliding groove 81; the push bar 122 is fixedly connected to one end of the push rod 121 in the sliding groove 81, and the push bar 122 and the push rod 121 are arranged in a collinear manner; the elastic compression spring 123 is sleeved on the rod body of the push rod 121 in the sliding groove 81, and the elastic compression spring 123 props against the push bar 122.

Referring to fig. 5, a first sealing member is disposed on the first sub-drum 5, and the first sealing member is used for separating the first sub-drum 5 from the adsorption tower 1; the first sealing assembly comprises a first partition plate 10 located outside the first auxiliary cylinder 5, one side of the first partition plate 10 penetrates through the side wall of the first auxiliary cylinder 5 and extends into the first auxiliary cylinder 5, and the first partition plate 10 is tightly attached to the top wall, the side wall and the bottom wall of the inner cavity of the first auxiliary cylinder 5 respectively.

Referring to fig. 5, a second closing member is provided on the second sub-cylinder 6, and the second closing member is used for separating the second sub-cylinder 6 from the adsorption tower 1; the second sealing component comprises a second partition plate 11 positioned outside the second auxiliary cylinder 6, one side of the second partition plate 11 penetrates through the side wall of the second auxiliary cylinder 6 and extends into the second auxiliary cylinder 6, and the second partition plate 11 is tightly attached to the top wall, the side wall and the bottom wall of the inner cavity of the second auxiliary cylinder 6 respectively.

Referring to fig. 4 and 5, when replacement is started, the first sealing component is in a sealing state, and the second sealing component is in an opening state; the operating personnel opens the retaining cover 7 at the top of the first auxiliary cylinder 5, pulls the push rod 121, pushes the strip 122 to compress the elastic pressure spring 123, puts a new adsorption component into the first auxiliary cylinder 5, puts the slide bar 9 into the sliding groove 81, releases the push rod 121, and pushes the strip 122 to collide the slide bar 9. At this point the operator re-bolts the flap 7 to the top of the first sub-cartridge 5.

Referring to fig. 4 and 5, an operator pulls the first partition plate 10 outward from the first auxiliary cylinder 5, at this time, the first auxiliary cylinder 5 is communicated with the adsorption tower 1, when the first partition plate 10 completely leaves the adsorption component, the elastic force of the elastic pressure spring 123 acts on the push bar 122, the push bar 122 can push the slide bar 9 to slide in the sliding groove 81, the slide bar 9 brings a new adsorption component into the adsorption tower 1, and at the same time, pushes an old adsorption component in the adsorption tower 1 into the second auxiliary cylinder 6.

Referring to fig. 4 and 5, the operator pushes the first partition 10 into the first sub-drum 5 again, thereby achieving separation of the first sub-drum 5 and the adsorption tower 1; the operator pushes the second partition 11 into the second sub-cylinder 6, thus achieving the separation of the second sub-cylinder 6 and the adsorption tower 1, at which time the operator opens the blocking cover 7 at the top of the second sub-cylinder 6 and takes out the old adsorption assembly, and then re-bolts the blocking cover 7 to the top of the second sub-cylinder 6.

Referring to fig. 4 and 5, when an operator puts a new adsorption assembly into the first auxiliary cylinder 5, the first auxiliary cylinder 5 is spaced apart from the adsorption tower 1, and the old adsorption assembly in the adsorption tower 1 operates; when the operator takes out the second auxiliary cylinder 6 from the old adsorption component, the second auxiliary cylinder 6 is separated from the adsorption tower 1, and the new adsorption component in the adsorption tower 1 works.

Referring to fig. 4 and 5, the adsorption component is replaced in the above manner, and during the replacement process, the adsorption component always works in the adsorption tower 1, so that the PSA pressure swing adsorption nitrogen production system does not need to be shut down, and the replacement process is convenient to operate.

Referring to fig. 4 and 5, a synchronizing rod 16 is fixedly connected between the ends of the two push rods 121 outside the first sub-cylinder 5, and the two push rods 121 can be pulled by an operator due to the arrangement of the synchronizing rod 16, so that the replacement work of the operator is facilitated.

Referring to fig. 4 and 5, after the replacement of the adsorption assembly is completed, the first sealing assembly and the second sealing assembly are both in a sealing state, so that the adsorption tower 1 is separated from the first secondary cylinder 5 and the second secondary cylinder 6, and the possibility of leakage of nitrogen in the adsorption tower 1 caused by leakage of air from the first secondary cylinder 5 and the second secondary cylinder 6 is reduced.

Referring to fig. 4 and 5, a first fixing plate 17 is fixedly connected to the outside of the first sub-cylinder 5, and the first partition plate 10 is bolted to the first fixing plate 17; the second auxiliary cylinder 6 is fixedly connected with a second fixing plate 18 outside, and the second partition plate 11 is bolted to the second fixing plate 18, so that the first partition plate 10 and the second partition plate 11 are locked, and the possibility that the first partition plate 10 and the second partition plate 11 are accidentally moved by external force is reduced.

Referring to fig. 4 and 5, a first spacing strip 14 is fixedly connected to a side wall of the first partition board 10 located in the first auxiliary cylinder 5, and the first spacing strip 14 has a spacing effect on the first partition board 10, so that the possibility that the first partition board 10 is pulled out of the first auxiliary cylinder 5 is reduced.

Referring to fig. 4 and 5, the second partition 11 is fixedly connected to the side wall of the second sub-cylinder 6, and the second partition 15 has a limiting effect on the second partition 11, so that the possibility that the second partition 11 is pulled out of the second sub-cylinder 6 is reduced.

Referring to fig. 4 and 5, a first seal groove 51 into which the first partition plate 10 is inserted is formed in an inner wall of the first sub-cylinder 5, and the first seal groove 51 enhances the sealing performance between the first sub-cylinder 5 and the adsorption tower 1.

Referring to fig. 4 and 5, a second seal groove 61 into which the second partition 11 is inserted is formed in the inner wall of the second sub-cylinder 6, and the second seal groove 61 enhances the sealing performance between the second sub-cylinder 6 and the adsorption tower 1.

The implementation principle of the PSA pressure swing adsorption nitrogen making system in the embodiment of the application is as follows: before replacement, an operator firstly detaches the first partition board 10 from the first fixing board 17, and detaches the second partition board 11 from the second fixing board 18; at the moment, the first sealing assembly and the second sealing assembly are both in a sealing state, the blocking cover 7 at the top of the first auxiliary cylinder 5 is detached, the synchronous rod 16 is pulled by one hand of an operator, the synchronous rod 16 pulls the push strip 122 through the push rod 121, the push strip 122 compresses the elastic compression spring 123, the other hand of the operator loads a new adsorption assembly, the slide strip 9 below the new adsorption assembly is placed in the sliding groove 81, and at the moment, the operator reinstalls the blocking cover 7 to the top of the first auxiliary cylinder 5 and opens the second sealing assembly. The first partition plate 10 is pulled out of the first auxiliary cylinder 5, after the first partition plate 10 completely lets out a new adsorption assembly, the pushing force of the elastic pressure spring 123 acting on the pushing strip 122 can push the sliding strip 9 to slide in the sliding groove 81, the new adsorption assembly is pushed into the adsorption tower 1, meanwhile, the new adsorption assembly pushes the old adsorption assembly into the second auxiliary cylinder 6, an operator closes the first sealing assembly and the second sealing assembly, then the blocking cover 7 at the top of the first auxiliary cylinder 5 is taken down, the old adsorption assembly is taken out, the blocking cover 7 is bolted to the top of the second auxiliary cylinder 6 again, finally, the first partition plate 10 is bolted to the first fixing plate 17, and the second partition plate 11 is bolted to the second fixing plate 18.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a PSA pressure swing adsorption nitrogen generation system, includes adsorption tower (1) of vertical setting, its characterized in that: the adsorption tower is characterized in that a first auxiliary cylinder (5) and a second auxiliary cylinder (6) are communicated on the side wall of the adsorption tower (1), the first auxiliary cylinder (5) and the second auxiliary cylinder (6) are symmetrically arranged about the axis of the adsorption tower (1), the first auxiliary cylinder (5) and the second auxiliary cylinder (6) are respectively provided with an opening, the opening is detachably connected with a baffle cover (7), two slide rails (8) which are parallel to each other and horizontally arranged are arranged in the adsorption tower (1), the upper surface of each slide rail (8) is provided with a sliding groove (81) along the length direction thereof, one end of each sliding groove (81) extends to the bottom wall of the inner cavity of the first auxiliary cylinder (5), the other end of each sliding groove extends to the bottom wall of the inner cavity of the second auxiliary cylinder (6), a sliding strip (9) slides in each sliding groove (81), an adsorption component for adsorbing oxygen is erected between the two sliding strips (9), a first closed component for separating from the adsorption tower (1) is arranged in the first auxiliary cylinder (5), a second sealing component for separating the second sealing component from the adsorption tower (1) is arranged in the second auxiliary cylinder (6), and a driving component for pushing the slide bar (9) is further arranged on the first auxiliary cylinder (5).

2. The PSA pressure swing adsorption nitrogen generation system of claim 1, wherein: the first sealing assembly comprises a first partition plate (10) positioned outside the first auxiliary barrel (5), one side of the first partition plate (10) penetrates through the side wall of the first auxiliary barrel (5) and extends into the first auxiliary barrel (5), and the first partition plate (10) is tightly attached to the top wall, the side wall and the bottom wall of the inner cavity of the first auxiliary barrel (5) respectively; the second sealing component comprises a second partition plate (11) located outside the second auxiliary cylinder (6), one side of the second partition plate (11) penetrates through the side wall of the second auxiliary cylinder (6) and extends into the second auxiliary cylinder (6), and the second partition plate (11) is tightly attached to the top wall, the side wall and the bottom wall of the inner cavity of the second auxiliary cylinder (6) respectively.

3. The PSA pressure swing adsorption nitrogen generation system of claim 1, wherein: the drive assembly is including sliding push rod (121) of wearing to establish in first auxiliary cylinder (5) diapire, the one end of push rod (121) extends to in spout (81), and outside the other end extended first auxiliary cylinder (5), the one end that push rod (121) are located spout (81) is connected with and pushes away strip (122), it slides in spout (81) to push away strip (122), push rod (121) are located the pole body of spout (81) and are overlapped and are equipped with elasticity pressure spring (123) that are used for the shore to push away strip (122).

4. The PSA pressure swing adsorption nitrogen generation system of claim 3, wherein: the adsorption component comprises a bearing strip (131) connected to two sliding strips (9), a bearing rod (132) vertically arranged is connected to the bearing strip (131), a plurality of molecular sieve plates (133) are slidably sleeved on the bearing rod (132), a separation ring (134) is arranged between every two adjacent molecular sieve plates (133), and the bearing rod (132) is slidably sleeved with the separation ring (134).

5. The PSA pressure swing adsorption nitrogen generation system of claim 2, wherein: the side wall of the first partition plate (10) in the first auxiliary barrel (5) is connected with a first limiting strip (14), and the side wall of the second partition plate (11) in the second auxiliary barrel (6) is connected with a second limiting strip (15).

6. The PSA pressure swing adsorption nitrogen generation system of claim 5, wherein: the inner wall of the first auxiliary cylinder (5) is provided with a first sealing groove (51) for inserting the first partition plate (10) at one side in the first auxiliary cylinder (5), and the inner wall of the second auxiliary cylinder (6) is provided with a second sealing groove (61) for inserting the second partition plate (11) at one side in the second auxiliary cylinder (6).

7. The PSA pressure swing adsorption nitrogen generation system of claim 3, wherein: a synchronous rod (16) is connected between one ends of the two push rods (121) which are positioned outside the first auxiliary cylinder (5).

8. The PSA pressure swing adsorption nitrogen generation system of claim 5, wherein: first auxiliary cylinder (5) outer joint has fixed plate (17), first baffle (10) can be dismantled and connect in fixed plate (17), second auxiliary cylinder (6) outer joint has fixed plate two (18), second baffle (11) can be dismantled and connect in fixed plate two (18).

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