CN215809695U

CN215809695U - Air separation device adopting pressure nitrogen to spray liquid nitrogen from lower tower to enter upper tower

Info

Publication number: CN215809695U
Application number: CN202122312885.7U
Authority: CN
Inventors: 邓军如; 孙永红; 余雄
Original assignee: Jiangxi Ganxing Gas Co ltd
Current assignee: Jiangxi Ganxing Gas Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-11
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to the technical field of air separation, and discloses an air separation device for feeding liquid nitrogen discharged from a lower tower into an upper tower by adopting pressure nitrogen injection, which solves the problem that extracted air flows back at a feeding port at present; according to the utility model, through the matching between the rotating plate, the connecting shaft and the L-shaped rod, when one end of the air inlet pipe moves to be positioned inside the connecting pipe, the return spring is stretched, and when the inside of the lower tower main body is not provided with air, the air inlet pipe moves towards the outer side direction of the connecting pipe through the action of the fixing mechanism, and at the moment, the return spring resets and enables the rotating plate to rotate clockwise around the connecting shaft, so that the port of the air inlet pipe is covered, and the air inside the connecting pipe is prevented from flowing back to the inside of the air inlet pipe.

Description

Air separation device adopting pressure nitrogen to spray liquid nitrogen from lower tower to enter upper tower

Technical Field

The utility model belongs to the technical field of air separation, and particularly relates to an air separation device for feeding liquid nitrogen into an upper tower by adopting pressure nitrogen injection.

Background

An air separation equipment for separating the component gases in air to generate oxygen, nitrogen and argon is composed of air filter system, air compressor system, air precooling system, air purifying system, expansion system and air separating system.

When the existing air separation device is used, the single air separated from the inside of the device has the condition of air backflow extracted from the material inlet of the device, so that the air efficiency of the device after extraction is influenced

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the air separation device for feeding liquid nitrogen of the lower tower into the upper tower by adopting pressure nitrogen injection, and the problem of backflow of the extracted air at the feeding port at present is effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an adopt pressure nitrogen to spray air separation plant that tower liquid nitrogen advances to go up the tower, includes the connecting pipe, the top fixed mounting of connecting pipe has the tower main part, and the internally mounted of connecting pipe has a moving mechanism, and the positive movable mounting of connecting pipe has the intake pipe, and fixed establishment is installed in the outside of intake pipe, and the bottom fixed mounting of connecting pipe has the tower main part down, and the outside fixed mounting of tower main part has the collar down, and the bottom of collar is equal angle fixed mounting has the supporting leg.

Preferably, the front surface of the connecting pipe is fixedly provided with a sealing ring, and the air inlet pipe is movably connected with the sealing ring.

Preferably, the fixing mechanism comprises a cross rod fixedly connected with the connecting pipe, a sliding block is movably mounted on the outer side of the cross rod, an extrusion spring movably sleeved with the cross rod is fixedly connected to one side of the sliding block, and a vertical rod is fixedly connected to one side of the sliding block.

Preferably, the outside of montant rotates and is connected with the fly leaf, and one side of fly leaf rotates and is connected with the splint of laminating with the intake pipe, and the screw has been seted up to one side of fly leaf.

Preferably, the mounting blocks are fixedly mounted on two sides of the front surface of the connecting pipe, and bolts matched with the screw holes are mounted on the front surface of the mounting blocks.

Preferably, the moving mechanism includes the mounting panel with connecting pipe fixed connection, and the mounting panel is located the inside of connecting pipe, mounting panel and intake pipe swing joint, and the equal fixed mounting in top both sides of mounting panel has L type pole, fixedly connected with connecting axle between two L type poles, and the outside of connecting axle is rotated and is connected with the rotor plate.

Preferably, the equal fixed mounting in both sides of rotor plate has the connecting rod, and one side fixed mounting of connecting rod has the stopper, and the outside of connecting rod is rotated and is connected with the movable rod, and the sleeve has been cup jointed in the outside activity of movable rod, and the sleeve rotates with the mounting panel to be connected, and telescopic inside fixed mounting has reset spring, reset spring and movable rod fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, through the matching between the rotating plate and the connecting shaft as well as the L-shaped rod, when one end of the air inlet pipe moves to be positioned inside the connecting pipe, the rotating plate rotates anticlockwise around the connecting shaft, the return spring is stretched through the matching between the connecting rod and the movable rod as well as the sleeve, and when the inside of the lower tower main body is empty, the air inlet pipe moves towards the outer side direction of the connecting pipe through the action of the fixing mechanism, one end of the air inlet pipe is positioned inside the mounting plate, the return spring resets and enables the rotating plate to rotate clockwise around the connecting shaft, and the rotating plate is attached to the mounting plate, so that the port of the air inlet pipe is covered, and the air inside the connecting pipe is prevented from flowing back to the inside of the air inlet pipe;

(2) this is novel through the cooperation between montant and fly leaf and the splint, the fly leaf of rotatable both sides and through splint to the intake pipe centre gripping to through montant and slider and. The cooperation between to make the montant can be along the horizontal pole, make the one end of intake pipe enter into the inside of connecting pipe this moment, when the fly leaf moves to being parallel with the front of connecting pipe, through the cooperation between bolt and installation piece and the screw this moment, can be fixed fly leaf and installation piece, thereby conveniently realize fixed the installation of intake pipe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a connecting tube according to the present invention;

FIG. 3 is a schematic cross-sectional view of the connecting tube of the present invention;

FIG. 4 is a schematic structural view of a fixing mechanism according to the present invention;

FIG. 5 is a schematic view of the movable mechanism of the present invention;

fig. 6 is an exploded view of the sleeve of the present invention.

In the figure: 1. a connecting pipe; 2. an upper tower main body; 3. a lower tower body; 4. an air inlet pipe; 5. a fixing mechanism; 501. a cross bar; 502. a compression spring; 503. a slider; 504. mounting blocks; 505. a bolt; 506. a splint; 507. a movable plate; 508. a screw hole; 509. a vertical rod; 6. a mounting ring; 7. supporting legs; 8. a seal ring; 9. a movable mechanism; 901. mounting a plate; 902. a sleeve; 903. a movable rod; 904. a limiting block; 905. a connecting shaft; 906. an L-shaped rod; 907. a connecting rod; 908. a rotating plate; 909. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 6, the present invention includes a connecting pipe 1, an upper tower main body 2 is fixedly installed at the top of the connecting pipe 1, a movable mechanism 9 is installed inside the connecting pipe 1, an air inlet pipe 4 is movably installed on the front surface of the connecting pipe 1, a fixing mechanism 5 is installed on the outer side of the air inlet pipe 4, a lower tower main body 3 is fixedly installed at the bottom of the connecting pipe 1, an installation ring 6 is fixedly installed on the outer side of the lower tower main body 3, a sealing ring 8 is fixedly installed on the front surface of the connecting pipe 1, the air inlet pipe 4 is movably connected with the sealing ring 8, and support legs 7 are fixedly installed at the bottom of the installation ring 6 at equal angles;

install intake pipe 4 in one side of connecting pipe 1 at first, then fix intake pipe 4 and make the one end of intake pipe 4 be located the inside of connecting pipe 1 through fixed establishment 5, then let in the inside of connecting pipe 1 with the air from intake pipe 4, then accessible fixed establishment 5 prevents the inside gas reflux of connecting pipe 1 to the inside of intake pipe 4 with the effect of movable establishment 9.

In the second embodiment, on the basis of the first embodiment, the fixing mechanism 5 includes a cross rod 501 fixedly connected with the connecting pipe 1, a sliding block 503 is movably installed on the outer side of the cross rod 501, one side of the sliding block 503 is fixedly connected with an extrusion spring 502 movably sleeved with the cross rod 501, one side of the sliding block 503 is fixedly connected with a vertical rod 509, the outer side of the vertical rod 509 is rotatably connected with a movable plate 507, one side of the movable plate 507 is rotatably connected with a clamping plate 506 attached to the air inlet pipe 4, one side of the movable plate 507 is provided with a screw hole 508, both sides of the front surface of the connecting pipe 1 are fixedly provided with mounting blocks 504, and the front surface of the mounting blocks 504 is provided with bolts 505 matched with the screw hole 508;

firstly, the movable plates 507 on two sides are rotated, the clamping plates 506 on two sides are in contact with the air inlet pipe 4 at the moment, then the air inlet pipe 4 is pushed to move towards the inside of the connecting pipe 1, the movable plates 507 on two sides are driven to move at the moment, the right end of the movable plate 507 drives the vertical rod 509 to move at the moment, the sliding block 503 moves along the cross rod 501 at the moment, the extrusion springs 502 on two sides are compressed at the moment, when the movable plates 507 on two sides move to be parallel to the front side of the connecting pipe 1, the bolt 505 is screwed into the screw hole 508, the movable plates 507 are fixed with the mounting block 504, and therefore the air inlet pipe 4 is mounted.

Third embodiment, on the basis of the first embodiment, the movable mechanism 9 includes a mounting plate 901 fixedly connected to the connecting pipe 1, the mounting plate 901 is located inside the connecting pipe 1, the mounting plate 901 is movably connected to the air inlet pipe 4, both sides of the top of the mounting plate 901 are fixedly provided with L-shaped rods 906, a connecting shaft 905 is fixedly connected between the two L-shaped rods 906, the outer side of the connecting shaft 905 is rotatably connected to a rotating plate 908, both sides of the rotating plate 908 are fixedly provided with a connecting rod 907, one side of the connecting rod 907 is fixedly provided with a limiting block 904, the outer side of the connecting rod 907 is rotatably connected to a movable rod 903, the outer side of the movable rod 903 is movably sleeved with a sleeve 902, the sleeve 902 is rotatably connected to the mounting plate 901, the inside of the sleeve 902 is fixedly provided with a return spring 909, and the return spring 909 is fixedly connected to the movable rod 903;

when the air inlet pipe 4 moves toward the inside of the connection pipe 1, the rotating plate 908 is driven to rotate around the connection shaft 905, and then the movement of the movable rod 903 is reached, and the return spring 909 is stretched, then, injecting air into the connecting pipe 1 through the air inlet pipe 4, then, heating and separating the air in the connecting pipe 1 by starting the heating component in the connecting pipe 1 by a worker, when there is no air in the air inlet pipe 4, the bolts 505 at both sides are loosened, the compression spring 502 is reset, and the movable plate 507 is driven to move, thereby drive intake pipe 4 to the outside removal of connecting pipe 1 and be located the inside of mounting panel 901 up to the one end of intake pipe 4, reset spring 909 resets this moment and drives rotor plate 908 and rotate to laminating with mounting panel 901 to cover the port of intake pipe 4, prevent that gas from flowing back to the inside of intake pipe 4.

The working principle is as follows: when the air inlet pipe 4 is used, firstly, the air inlet pipe 4 is inserted into the front surface of the connecting pipe 1, then the movable plates 507 on both sides are rotated, the clamping plates 506 on both sides are contacted with the air inlet pipe 4, then the air inlet pipe 4 is pushed to move towards the inside of the connecting pipe 1, at the same time, the movable plates 507 on both sides are driven to move, at the same time, the right ends of the movable plates 507 drive the vertical rods 509 to move, at the same time, the sliding blocks 503 move along the cross rods 501, at the same time, the extrusion springs 502 on both sides are compressed, when the movable plates 507 on both sides move to be parallel to the front surface of the connecting pipe 1, then the bolts 505 are screwed into the inner parts of the screw holes 508, and the movable plates 507 are fixed with the mounting blocks 504, thereby realizing the mounting of the air inlet pipe 4, when the air inlet pipe 4 moves towards the inside of the connecting pipe 1, at the same time, the rotating plates 908 are driven to rotate around the connecting shafts 905, at the same time, the movement of the movable rods 903 is reached, and the reset springs 909 are stretched, then the air is injected into the inside of the connecting pipe 1 through the air inlet pipe 4, then the staff rethread starts the inside heating element of connecting pipe 1 and heats the separation to the inside air of connecting pipe 1, when the inside of intake pipe 4 does not have the air, loosen the bolt 505 of both sides this moment, the extrusion spring 502 resets this moment, and drive fly leaf 507 motion, thereby it moves the inside that the one end that is located mounting panel 901 to the outside of connecting pipe 1 until intake pipe 4 to drive intake pipe 4, reset spring 909 resets this moment and drives rotor plate 908 and rotate to laminating with mounting panel 901, thereby cover the port of intake pipe 4, prevent that gas from flowing back to the inside of intake pipe 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adopt pressure nitrogen to spray lower column liquid nitrogen and advance air separation plant of last tower, includes connecting pipe (1), its characterized in that: the tower is characterized in that an upper tower body (2) is fixedly mounted at the top of a connecting pipe (1), a movable mechanism (9) is mounted inside the connecting pipe (1), an air inlet pipe (4) is movably mounted in the front of the connecting pipe (1), a fixing mechanism (5) is mounted outside the air inlet pipe (4), a lower tower body (3) is fixedly mounted at the bottom of the connecting pipe (1), a mounting ring (6) is fixedly mounted at the outer side of the lower tower body (3), and supporting legs (7) are fixedly mounted at the bottom of the mounting ring (6) at equal angles.

2. An air separation plant for sparging liquid nitrogen from a lower column into an upper column using pressurized nitrogen as claimed in claim 1 wherein: the front surface of the connecting pipe (1) is fixedly provided with a sealing ring (8), and the air inlet pipe (4) is movably connected with the sealing ring (8).

3. An air separation plant for sparging liquid nitrogen from a lower column into an upper column using pressurized nitrogen as claimed in claim 1 wherein: the fixing mechanism (5) comprises a cross rod (501) fixedly connected with the connecting pipe (1), a sliding block (503) is movably mounted on the outer side of the cross rod (501), an extrusion spring (502) movably sleeved with the cross rod (501) is fixedly connected to one side of the sliding block (503), and a vertical rod (509) is fixedly connected to one side of the sliding block (503).

4. An air separation plant using pressurized nitrogen to sparge liquid nitrogen from a lower column into an upper column as claimed in claim 3 wherein: the outer side of the vertical rod (509) is rotatably connected with a movable plate (507), one side of the movable plate (507) is rotatably connected with a clamping plate (506) attached to the air inlet pipe (4), and one side of the movable plate (507) is provided with a screw hole (508).

5. An air separation plant for sparging liquid nitrogen from a lower column into an upper column using pressurized nitrogen as claimed in claim 1 wherein: the front side of the connecting pipe (1) is fixedly provided with mounting blocks (504), and the front side of the mounting blocks (504) is provided with bolts (505) matched with the screw holes (508).

6. An air separation plant for sparging liquid nitrogen from a lower column into an upper column using pressurized nitrogen as claimed in claim 1 wherein: the movable mechanism (9) comprises a mounting plate (901) fixedly connected with the connecting pipe (1), the mounting plate (901) is located inside the connecting pipe (1), the mounting plate (901) is movably connected with the air inlet pipe (4), L-shaped rods (906) are fixedly mounted on two sides of the top of the mounting plate (901), a connecting shaft (905) is fixedly connected between the two L-shaped rods (906), and a rotating plate (908) is rotatably connected to the outer side of the connecting shaft (905).

7. An air separation plant for sparging liquid nitrogen from a lower column into an upper column using pressurized nitrogen as claimed in claim 6 wherein: the improved structure of the automobile seat is characterized in that connecting rods (907) are fixedly mounted on two sides of the rotating plate (908), a limiting block (904) is fixedly mounted on one side of each connecting rod (907), a movable rod (903) is connected to the outer side of each connecting rod (907) in a rotating mode, a sleeve (902) is movably sleeved on the outer side of each movable rod (903), each sleeve (902) is connected with the corresponding mounting plate (901) in a rotating mode, a reset spring (909) is fixedly mounted inside each sleeve (902), and each reset spring (909) is fixedly connected with each movable rod (903).