CN216986830U

CN216986830U - Molecular sieve oxygenerator adsorption tower seal structure

Info

Publication number: CN216986830U
Application number: CN202220670905.XU
Authority: CN
Inventors: 谢霞; 李俊; 牛茂林; 褚佳豪
Original assignee: Shandong Howell Medical Equipment Co ltd
Current assignee: Shandong Howell Medical Equipment Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-19
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to the technical field of oxygen generation, in particular to a sealing structure of an adsorption tower of a molecular sieve oxygen generator, which comprises a base, wherein the top end of the base is fixedly connected with an air inlet cover, the top end of the air inlet cover is fixedly connected with a threaded pipe, the top end of the threaded pipe is provided with a groove, a sealing ring is embedded in the groove, the surface of the threaded pipe is in threaded connection with a sleeve, an air inlet pipe penetrates through the sleeve, the bottom end of the threaded pipe penetrates through the top end of the air inlet cover and is fixedly connected with a first electromagnetic valve, the bottom end of the first electromagnetic valve is fixedly connected with a first concave pipe, the two ends of the concave pipe penetrate through the top end of the air inlet cover and are fixedly connected with a tower body, the interior of the tower body is fixedly connected with a plurality of filter screens, the improved sealing structure of the adsorption tower of the molecular sieve oxygen generator is improved, and after air enters from the air inlet pipe, through the matching between the air inlet pipe and the sealing ring, the purity of the oxygen is greatly improved by layer-by-layer filtration among the electromagnetic valve, the molecular plug and the filter.

Description

Molecular sieve oxygenerator adsorption tower seal structure

Technical Field

The utility model relates to the technical field of oxygen generation, in particular to a molecular sieve oxygen generator adsorption tower sealing structure.

Background

The molecular sieve type oxygen generator is a device for extracting oxygen from air based on pressure swing adsorption technology, and is characterized by that it utilizes molecular sieve physical adsorption and desorption technology to fill molecular sieve in the oxygen generator, and can adsorb nitrogen gas in the air when it is pressurized, then the residual unabsorbed oxygen gas can be collected, and after the oxygen gas is purified, the high-purity oxygen gas can be obtained.

The prior patent (publication number: CN213314202U) discloses a sealing structure of an adsorption tower of a molecular sieve oxygen generator. The molecular sieve oxygenerator adsorption tower sealing structure comprises a cylinder body and two end covers which are respectively arranged at two ends of the cylinder body, wherein the end covers comprise a cover plate and a sleeve which are integrally formed, the sleeve is sleeved outside the cylinder body, a sealing ring is arranged between the sleeve and the cylinder body, and a reserved space is reserved between the end surface of the cylinder body and the cover plate. In the molecular sieve oxygenerator adsorption tower sealing structure, the barrel is made of polyvinyl chloride, the end cover is made of aluminum alloy, the expansion coefficient of the barrel is far greater than that of the end cover, the compression amount of the sealing ring is increased when the barrel deforms in the radial direction, so that the purpose of sealing is enhanced, and the problems of sealing leakage between the barrel and the end cover of the adsorption tower and the like are thoroughly solved; meanwhile, the axial deformation of the barrel is not limited, the problems of deformation and the like of the barrel are avoided, and the operation difficulty of a user is reduced. The inventor finds the following problems in the prior art in the process of implementing the utility model: 1. the existing equipment has a complex integral structure, many related spare and accessory parts, long assembly line and low production efficiency, so that the production cost is increased and the maintenance is difficult; 2. the existing equipment has incomplete nitrogen desorption, and a large amount of air enters the adsorption tower, so that the desorption basically has no effect, and the purity of oxygen is inevitably reduced greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing structure of an adsorption tower of a molecular sieve oxygen generator, which aims to solve the problems in the background technology. In order to achieve the purpose, the utility model provides the following technical scheme: a sealing structure of an adsorption tower of a molecular sieve oxygenerator comprises a base, wherein the top end of the base is fixedly connected with an air inlet cover, the top end of the air inlet cover is fixedly connected with a threaded pipe, the top end of the threaded pipe is provided with a groove, a sealing ring is embedded in the groove, the surface of the threaded pipe is in threaded connection with a sleeve pipe, an air inlet pipe penetrates through the inner part of the sleeve pipe, the bottom end of the threaded pipe penetrates through the top end of the air inlet cover and is fixedly connected with a first electromagnetic valve, the bottom end of the first electromagnetic valve is fixedly connected with a first concave pipe, the two ends of the first concave pipe penetrate through the top end of the air inlet cover and is fixedly connected with a tower body, the inner part of the tower body is fixedly connected with a plurality of filter screens, the top end of the tower body is fixedly connected with a second concave pipe, the top end of the second concave pipe is fixedly connected with a second electromagnetic valve, and the top end of the second electromagnetic valve is fixedly connected with a connecting pipe, and the one end fixedly connected with filter housing of connecting pipe, the equal fixedly connected with buffering clearance of two walls in the inside of filter housing, the inside bottom fixedly connected with filter of filter housing, the top fixedly connected with apron of filter housing, and the inside of apron runs through there is the outlet duct.

Preferably, the top end of the sleeve is provided with a slot, and the size of the slot is smaller than that of the annular baffle at the bottom end of the air inlet pipe.

It is further preferred that the tower body is symmetrical with respect to a central axis of the base.

Further preferably, the sealing ring protrudes from the surface of the threaded pipe.

Further preferably, four filter screens are arranged in each tower body, and the total number of the tower bodies is two.

It is further preferred that the outer dimensional structure of the buffer gap is slightly larger than the outer dimensional structure of the filter.

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

according to the utility model, through the matching of the sleeve and the threaded pipe, when the bottom end of the air inlet pipe is contacted with the edge of the sealing ring, the sealing ring is extruded by the air inlet pipe to deform, so that the sealing effect is completed, after air passes through the air inlet pipe, nitrogen in the air is extracted through the first electromagnetic valve and then enters the tower body through the first concave pipe, so that the sleeve moves back and forth on the surface of the air inlet pipe under the limit of the air inlet pipe.

According to the utility model, after oxygen in the tower body enters the filter, the purity of the oxygen can be improved under the matching of the buffer gap and the filter, substances smaller than micropores of the tower body are allowed to pass through by utilizing the matching of the molecular sieve and the filter screen in the tower body, and an internal barrier effect is provided for macromolecular substances and bacteria larger than the micropores of the tower body.

Drawings

FIG. 1 is a schematic front view of the internal structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is an enlarged sectional view at A of FIG. 1 according to the present invention.

In the figure: 1. a base; 2. an air intake cover; 3. a threaded pipe; 4. a groove; 5. a seal ring; 6. a sleeve; 7. an air inlet pipe; 8. a first solenoid valve; 9. a first concave pipe; 10. a tower body; 11. a filter screen; 12. a second concave pipe; 13. a second solenoid valve; 14. a connecting pipe; 15. a filter housing; 16. a buffer gap; 17. a filter; 18. a cover plate; 19. and an air outlet pipe.

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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a sealing structure of an adsorption tower of a molecular sieve oxygenerator comprises a base 1, wherein the top end of the base 1 is fixedly connected with an air inlet cover 2, the top end of the air inlet cover 2 is fixedly connected with a threaded pipe 3, the top end of the threaded pipe 3 is provided with a groove 4, a sealing ring 5 is embedded in the groove 4, the surface of the threaded pipe 3 is in threaded connection with a sleeve 6, an air inlet pipe 7 penetrates through the sleeve 6, the bottom end of the threaded pipe 3 penetrates through the top end of the air inlet cover 2 and is fixedly connected with a first electromagnetic valve 8, the bottom end of the first electromagnetic valve 8 is fixedly connected with a first concave pipe 9, two ends of the first concave pipe 9 penetrate through the top end of the air inlet cover 2 and is fixedly connected with a tower body 10, a plurality of filter screens 11 are fixedly connected inside the tower body 10, the top end of the tower body 10 is fixedly connected with a second concave pipe 12, the top end of the second concave pipe 12 is fixedly connected with a second electromagnetic valve 13, and the top end of the second electromagnetic valve 13 is fixedly connected with a connecting pipe 14, and one end of the connecting pipe 14 is fixedly connected with a filter housing 15, two walls of the inside of the filter housing 15 are fixedly connected with a buffer gap 16, the bottom end of the inside of the filter housing 15 is fixedly connected with a filter 17, the top end of the filter housing 15 is fixedly connected with a cover plate 18, and an air outlet pipe 19 penetrates through the inside of the cover plate 18.

In this embodiment, as shown in fig. 1, the top end of the sleeve 6 is provided with a slot, and the size of the slot is smaller than that of the annular baffle at the bottom end of the air inlet pipe 7, so that the sleeve 6 moves back and forth on the surface of the air inlet pipe 7 under the limit of the air inlet pipe 7.

In this embodiment, as shown in fig. 1, the tower body 10 is symmetrical with respect to the central axis of the base 1, and after passing through the air inlet pipe 7, nitrogen in the air is extracted through the first electromagnetic valve 8 and then enters the interior of the tower body 10 through the first concave pipe 9.

In this embodiment, as shown in fig. 1, the sealing ring 5 protrudes from the surface of the threaded pipe 3, and when the bottom end of the air inlet pipe 7 contacts the edge of the sealing ring 5 by the fit between the sleeve 6 and the threaded pipe 3, the sealing ring 5 is deformed by the extrusion of the air inlet pipe 7, thereby completing the sealing function.

In this embodiment, as shown in fig. 1, four filter screens 11 are arranged inside each tower body 10, and there are two tower bodies 10 in total, and by using the cooperation between the molecular sieve inside the tower body 10 and the filter screens 11, substances smaller than the micropores of the tower body are allowed to pass through, and an internal barrier effect is provided for macromolecular substances and bacteria larger than the micropores of the tower body.

In this embodiment, as shown in fig. 1, the outer dimension structure of the buffer gap 16 is slightly larger than the outer dimension structure of the filter 17, and after oxygen in the tower body 10 enters the filter 17, the oxygen purity can be improved under the cooperation of the buffer gap 16 and the filter 17.

The use method and the advantages of the utility model are as follows: this molecular sieve oxygenerator adsorption tower seal structure is when the rolling, and the working process is as follows:

as shown in fig. 1, 2 and 3, firstly, a seal ring 5 is placed in a groove 4 at the top end of a threaded pipe 3, then a sleeve 6 on the surface of an air inlet pipe 7 is in threaded connection with the threaded pipe 3, air is sealed, the air is compressed and filtered through a first electromagnetic valve 8, enters the interior of a tower body 10 from a first concave pipe 9, the air entering the interior of the tower body 10 allows substances smaller than micropores of the air to pass through under a molecular sieve and a filter screen 11, has an internal barrier effect on macromolecular substances and bacteria larger than the micropores of the air, the filtered oxygen enters a filter 17 through a second concave pipe 12 and a second electromagnetic valve 13, the oxygen improves the purity of the oxygen through the matching of a buffer gap 16 and the filter 17, and finally the oxygen flows out from an air outlet pipe 19.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a molecular sieve oxygenerator adsorption tower seal structure, includes base (1), its characterized in that: the air inlet structure is characterized in that an air inlet cover (2) is fixedly connected to the top end of the base (1), a threaded pipe (3) is fixedly connected to the top end of the air inlet cover (2), a groove (4) is formed in the top end of the threaded pipe (3), a sealing ring (5) is embedded in the groove (4), a sleeve pipe (6) is connected to the surface of the threaded pipe (3) in a threaded mode, an air inlet pipe (7) penetrates through the inner portion of the sleeve pipe (6), the bottom end of the threaded pipe (3) penetrates through the top end of the air inlet cover (2) and is fixedly connected with a first electromagnetic valve (8), a first concave pipe (9) is fixedly connected to the bottom end of the first electromagnetic valve (8), the two ends of the first concave pipe (9) penetrate through the top end of the air inlet cover (2) and are fixedly connected with a tower body (10), a plurality of filter screens (11) are fixedly connected to the inner portion of the tower body (10), a second concave pipe (12) is fixedly connected to the top end of the tower body (10), and the top fixedly connected with second solenoid valve (13) of second concave venturi tube (12), the top fixedly connected with connecting pipe (14) of second solenoid valve (13), and the one end fixedly connected with filter housing (15) of connecting pipe (14), two wall fixedly connected with buffer gap (16) in the inside of filter housing (15), the inside bottom fixedly connected with filter (17) of filter housing (15), the top fixedly connected with apron (18) of filter housing (15), and the inside of apron (18) is run through there is outlet duct (19).

2. The molecular sieve oxygenator adsorption tower sealing structure of claim 1, wherein: the top end of the sleeve (6) is provided with a slot, and the size of the slot is smaller than that of the annular baffle at the bottom end of the air inlet pipe (7).

3. The molecular sieve oxygenator adsorption tower sealing structure of claim 1, wherein: the tower body (10) is symmetrical relative to the central axis of the base (1).

4. The molecular sieve oxygenator adsorption tower sealing structure of claim 1, wherein: the sealing ring (5) protrudes out of the surface of the threaded pipe (3).

5. The molecular sieve oxygenator adsorption tower sealing structure of claim 1, wherein: four filter screens (11) are arranged in each tower body (10), and the total number of the tower bodies (10) is two.

6. The molecular sieve oxygenator adsorption tower sealing structure of claim 1, wherein: the outer dimension of the buffer gap (16) is slightly larger than the outer dimension of the filter (17).