CN218107252U

CN218107252U - Adsorption tower for medical molecular sieve oxygen generator

Info

Publication number: CN218107252U
Application number: CN202222635072.6U
Authority: CN
Inventors: 范自良; 吕明; 李传凤
Original assignee: Weihai Wego Haisheng Medical Equipment Co ltd
Current assignee: Weihai Wego Haisheng Medical Equipment Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-23
Anticipated expiration: 2032-10-08

Abstract

The application provides a medical molecular sieve is adsorption tower for oxygenerator, including the adsorption tower barrel and set up respectively at the interface of admitting air and the interface of giving vent to anger at adsorption tower barrel both ends, the interface of admitting air and the tube coupling that admits air, the interface of giving vent to anger with give vent to anger the tube coupling, be equipped with the distributor of admitting air in proper order in the adsorption tower barrel of interface end that admits air, lower orifice plate subassembly and dry buffer layer, the gas that gets into in the adsorption tower barrel from the interface of admitting air loops through the distributor of admitting air, get into the molecular sieve behind lower orifice plate subassembly and the dry buffer layer. The utility model discloses be equipped with the distributor that admits air at the adsorption tower inlet end, orifice plate subassembly and dry buffer layer down, the distributor that admits air can make the gaseous quick distribution who gets into from the air inlet, reduce the air velocity difference of central point to the outward flange, the orifice plate subassembly reduces the air current impact force when playing the filtering action to gas down, dry buffer layer further alleviates high-pressure gas's impact force and has the adsorption to the water in the air, gas is through the buffering, the dry molecular sieve that gets into, the impact that the molecular sieve received is little, reduce the moisture absorption, the life-span of molecular sieve has been prolonged.

Description

Adsorption tower for medical molecular sieve oxygen generator

Technical Field

The utility model relates to an oxygen making equipment technical field especially relates to a medical molecular sieve adsorption tower for oxygen generator.

Background

The molecular sieve oxygen generating equipment mainly applies the pressure swing adsorption principle of the molecular sieve, the molecular sieve is sealed in an adsorption tower, and the oxygen and nitrogen separation is carried out on the purified air through the molecular sieve. The prior medical molecular sieve oxygen generating equipment mainly takes a zeolite molecular sieve as an adsorbent and air as a raw material, and utilizes the characteristics that the adsorption capacity of the zeolite molecular sieve to nitrogen in the air is increased when the zeolite molecular sieve is pressurized and the adsorption capacity to the nitrogen in the air is reduced when the zeolite molecular sieve is depressurized to form a rapid cycle process of pressurized adsorption and depressurized desorption, so that oxygen and nitrogen in the air are separated, and medical oxygen meeting national standards is produced. Because air needs to enter the adsorption tower in a high-pressure mode, high-pressure airflow can generate large collision impact on the molecular sieve, particularly the molecular sieve at the air inlet, the molecular sieve can be damaged and float after being impacted, and the floating molecular sieve can influence the adsorption effect. Meanwhile, the molecular sieve absorbs water in the air, the molecular sieve cannot be used after a certain amount of moisture absorption is achieved, and the molecular sieve needs to be regenerated or replaced, so that the service life of the molecular sieve is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that molecular sieve adsorption effect and molecular sieve moisture absorption arouse that life is low that the fragile influence of molecular sieve especially air inlet department molecular sieve in the adsorption tower among the prior art, the utility model provides a medical molecular sieve is adsorption tower for oxygenerator, this adsorption tower can avoid air inlet department high-pressure gas direct impact molecular sieve to can carry out the life of moisture absorption drying extension molecular sieve.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

adsorption tower for medical molecular sieve oxygenerator, including the adsorption tower barrel and set up respectively at the interface of admitting air and the interface of giving vent to anger at adsorption tower barrel both ends, admit air the interface and admit air the tube coupling, the interface of giving vent to anger with give vent to anger the tube coupling, be equipped with in proper order in the interface end adsorption tower barrel of admitting air distributor, lower orifice plate subassembly and dry buffer layer, the gas that gets into in the adsorption tower barrel from the interface of admitting air loops through the distributor of admitting air, gets into the molecular sieve behind lower orifice plate subassembly and the dry buffer layer.

As a preferable mode, the air inlet distributor is of a disc-shaped structure, a fixing claw is arranged on the surface of the air inlet distributor opposite to the air inlet interface, the fixing claw is fixed with the inner wall of the adsorption tower cylinder, and an air flow channel is formed between the edge of the air inlet distributor and the inner wall of the adsorption tower cylinder.

As a preferred mode, the lower orifice plate component is fixedly arranged on the cylinder body of the adsorption tower and comprises an upper plate, a lower plate and a screen, wherein air holes with uniform apertures are formed in the upper plate and the lower plate, and the screen is arranged between the upper plate and the lower plate.

Preferably, the dry buffer layer is an alumina filling layer. More preferably, the particle size of the alumina is larger than that of the molecular sieve, and the ratio of the particle size of the alumina to the particle size of the molecular sieve is 1.5.

Preferably, the ratio of the thickness of the dry buffer layer to the height of the cylinder of the adsorption tower is 1.

Preferably, the dry buffer layer comprises a calcium chloride desiccant layer and a plant fiber layer.

Preferably, the adsorption tower cylinder is provided with an upper orifice plate assembly at the air outlet connector end.

Preferably, the upper end of the adsorption tower cylinder is welded with an assembly seat, and the upper cover of the adsorption tower is fixed on the assembly seat through bolts.

As an optimization, the lower end of the adsorption tower barrel is welded with a fixing support, and the fixing support is provided with screw holes.

The utility model has the advantages that: the gas inlet end of the adsorption tower is provided with a gas inlet distributor, a lower pore plate assembly and a drying buffer layer, the gas inlet distributor can enable gas entering from a gas inlet to be rapidly distributed, the difference of the air flow speed from a central point to an outer edge is reduced, the lower pore plate assembly can filter the gas and reduce the impact force of the gas flow, the drying buffer layer further relieves the impact force of high-pressure gas and has an adsorption effect on water in the air, the gas enters the molecular sieve through buffering and drying, the molecular sieve is small in impact, moisture absorption is reduced, and the service life of the molecular sieve is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the adsorption tower of the present invention.

Fig. 2 is a view from a in fig. 1.

Fig. 3 is a schematic view of the structure of the intake air distributor.

Fig. 4 is a perspective view of the lower orifice plate assembly.

FIG. 5 is a schematic cross-sectional view of a lower orifice plate assembly.

The adsorption tower comprises an adsorption tower barrel body 1, an air inlet interface 2, an air outlet interface 3, a fixing support 4, an air inlet distributor 5, a fixing claw 51, a lower pore plate assembly 6, an upper plate 61, a screen 62, a lower plate 63, a screw 64, an air hole 65, a dry buffer layer 7, a mesh-shaped partition plate 8, a molecular sieve 9, an upper pore plate assembly 10, an assembly seat 11, an adsorption tower upper cover 12, a bolt 13, a sealing ring 14, a screw hole 15 and an air flow channel 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

As shown in fig. 1 and 2, the utility model discloses medical molecular sieve adsorption tower for oxygenerator, including adsorption tower barrel 1 and set up respectively at the interface 2 and the interface 3 of giving vent to anger of admitting air at 1 both ends of adsorption tower barrel, admit air interface 2 and interface 3 of giving vent to anger all communicate with adsorption tower barrel 1, admit air interface 2 and air inlet pipe connection, with gaseous input to adsorption tower barrel 1 in, interface 3 and the air outlet pipe connection of giving vent to anger, gaseous output in adsorption tower barrel 1. The air inlet connector 2 and the air outlet connector 3 can adopt an internal thread structure, and are conveniently connected with an air inlet pipeline or an air outlet pipeline. An air inlet distributor 5, a lower pore plate assembly 6 and a dry buffer layer 7 are sequentially arranged in the adsorption tower cylinder body 1 at the air inlet interface 2 end. The gas entering the adsorption tower cylinder 1 from the gas inlet interface 2 sequentially passes through the gas inlet distributor 5, the lower orifice plate assembly 6 and the drying buffer layer 7 and then reaches the molecular sieve 9 for oxygen production through adsorption. A reticular clapboard 8 is arranged between the dry buffer layer 7 and the molecular sieve 9, and the reticular clapboard 8 separates the dry buffer layer 7 from the molecular sieve 9 and plays a role of compacting the molecular sieve 9.

In this embodiment, as shown in fig. 3, the air inlet distributor 5 is a disk-shaped structure, and a fixing claw 51 is disposed on a surface of the air inlet distributor 5 opposite to the air inlet port 2, the fixing claw 51 is fixed to an inner wall of the adsorption tower cylinder 1, and an air flow channel 16 is formed between an edge of the air inlet distributor 5 and the inner wall of the adsorption tower cylinder 1. The gas flowing from the gas inlet port 2 at the lower end of the adsorption tower cylinder 1 directly impacts the gas inlet distributor 5, and the gas flow flows from the disc-shaped gas inlet distributor 5 to the peripheral gas flow channel 16 and flows upwards.

In this embodiment, the lower orifice plate assembly 6 is fixedly mounted on the adsorption tower cylinder 1, and as shown in fig. 4 and 5, the structure thereof includes an upper plate 61, a lower plate 63, and a screen 62, the upper plate 61 and the lower plate 63 are provided with air holes 65 having uniform apertures, the upper plate 61 and the lower plate 63 are fixed together by screws 64, and the screen 62 is fixed between the two. The apertures of the screen 62 are much smaller than the apertures of the air holes 65 of the upper plate 61 and the lower plate 63, which has a filtering effect on the entering gas and blocks the molecular sieve 9 and the pulverized particles of the dry buffer layer 7.

In this embodiment, the dry buffer layer 7 is an alumina filling layer. The grain diameter of the alumina filling layer is larger than that of the molecular sieve 9, and a larger gap is formed between the aluminas, so that gas can pass through the gap quickly. The ratio of the alumina grain diameter to the molecular sieve 9 grain diameter is 1.5 to 3:1, and the effect is better in the range.

In the present embodiment, the ratio of the thickness of the dry buffer layer 7 to the height of the adsorption tower cylinder 1 is 1. If the height of the cylinder body 1 of the adsorption tower is 900mm, and the thickness of the dry buffer layer 7 is 20-36mm, the buffering and drying effects are good.

In this embodiment, the dry buffer layer 7 may also adopt a composite structure, including a calcium chloride desiccant layer and a plant fiber layer. The plant fiber is a raw material used in the existing plant fiber drying agent and is obtained commercially. The plant fiber layer is arranged on two sides of the calcium chloride drying agent layer or only one side of the calcium chloride drying agent layer, and the plant fiber layer can play a good role in buffering and drying.

In this embodiment, the upper orifice plate assembly 10 is disposed at the end of the air outlet port 3 of the adsorption tower cylinder 1, and the gas is filtered by the upper orifice plate assembly 10 and then is sent out of the adsorption tower through the air outlet port 3. An assembly seat 11 is welded at the upper end of the adsorption tower cylinder 1, an adsorption tower upper cover 12 is fixed on the assembly seat 11 through bolts 13, and a sealing ring 14 is arranged between the upper orifice plate assembly 10 and the assembly seat 11, so that the sealing effect is ensured, and the working pressure in the adsorption tower is maintained. The upper orifice plate assembly 10 is installed on the assembly seat 11, and the assembly and disassembly are simple.

In this embodiment, the welding of 1 lower extreme of adsorption tower barrel has fixed bolster 4, is equipped with screw hole 15 on the fixed bolster 4, and the bolt passes screw hole 15 and fixes fixed bolster 4 fast, the installation of the adsorption tower of being convenient for.

When the adsorption tower works, air treated by an air compressor enters the adsorption tower from the air inlet interface 2, the disc-shaped air inlet distributor 5 is fixed to the inner wall of the adsorption tower cylinder 1 through the fixing claws 51, a certain distance is reserved between the air inlet distributor 5 and the air inlet interface 2, the diameter of the air inlet distributor 5 is smaller than that of the adsorption tower cylinder 1 at the installation position, an air flow channel 16 is formed between the edge of the air inlet distributor 5 and the inner wall of the adsorption tower cylinder 1, the entering air flow is buffered by the air inlet distributor 5 and then flows around and is distributed to the lower orifice plate assembly 6 from the air flow channel 16, the lower orifice plate assembly 6 guides and filters the air flow and then enters the drying buffer layer 7, the air entering the drying buffer layer 7 is further dried and buffered and then enters the molecular sieve 9, the molecular sieve 9 is subjected to small impact and reduces moisture absorption, the use states of the center and the edge of the molecular sieve 9 are relatively consistent, the working efficiency of the molecular sieve is improved, and the service life of the molecular sieve 9 is prolonged.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Adsorption tower for medical molecular sieve oxygenerator, including adsorption tower barrel (1) and set up respectively at air inlet interface (2) and the interface (3) of giving vent to anger at adsorption tower barrel (1) both ends, air inlet interface (2) and air inlet pipe connection, air outlet interface (3) and air outlet pipe connection, its characterized in that: an air inlet distributor (5), a lower pore plate assembly (6) and a drying buffer layer (7) are sequentially arranged in the adsorption tower cylinder body (1) at the air inlet connector (2), and air entering the adsorption tower cylinder body (1) from the air inlet connector (2) sequentially passes through the air inlet distributor (5), the lower pore plate assembly (6) and the drying buffer layer (7) and then enters the molecular sieve (9).

2. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: the air inlet distributor (5) is of a disc-shaped structure, a fixed claw (51) is arranged on the surface of the air inlet distributor opposite to the air inlet interface (2), the fixed claw (51) is fixed with the inner wall of the adsorption tower cylinder (1), and an air flow channel (16) is formed between the edge of the air inlet distributor (5) and the inner wall of the adsorption tower cylinder (1).

3. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: the lower orifice plate assembly (6) is fixedly arranged on the adsorption tower cylinder body (1) and comprises an upper plate (61), a lower plate (63) and a screen (62), wherein air holes 65 with uniform apertures are formed in the upper plate (61) and the lower plate (63), and the screen (62) is fixed between the upper plate (61) and the lower plate (63).

4. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: the dry buffer layer (7) is an alumina filling layer.

5. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 4, wherein: the grain size of the alumina is larger than that of the molecular sieve (9), and the ratio of the grain size of the alumina to the grain size of the molecular sieve (9) is 1.5.

6. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: the dry buffer layer (7) comprises a calcium chloride desiccant layer and a plant fiber layer.

7. The adsorption tower for the medical molecular sieve oxygen generator as claimed in any one of claims 1 to 6, wherein: the ratio of the thickness of the dry buffer layer (7) to the height of the adsorption tower cylinder (1) is 1.

8. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: an upper pore plate assembly (10) is arranged at the end of the air outlet connector (3) of the adsorption tower cylinder body (1).

9. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: an assembly seat (11) is welded at the upper end of the adsorption tower cylinder body (1), and an adsorption tower upper cover (12) is fixed on the assembly seat (11) through a bolt (13).

10. The adsorption tower for the medical molecular sieve oxygen generator as claimed in claim 1, wherein: the lower end of the adsorption tower cylinder body (1) is welded with a fixed support (4), and the fixed support (4) is provided with a screw hole (15).