CN219072540U

CN219072540U - Detachable molecular sieve adsorption tower subassembly

Info

Publication number: CN219072540U
Application number: CN202222596143.6U
Authority: CN
Inventors: 徐超; 宗红彦; 常永攀; 庆宏杨
Original assignee: Tibet Yuyue Medical Investment Co ltd; Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Nanjing Yuyue Software Technology Co Ltd
Current assignee: Tibet Yuyue Medical Investment Co ltd; Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Nanjing Yuyue Software Technology Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-05-26
Anticipated expiration: 2032-09-29

Abstract

The detachable molecular sieve adsorption tower assembly comprises two adsorption tower bodies and a bottom cover which are arranged in parallel, wherein the inner cavity of each adsorption tower body is filled with a molecular sieve, the top of each adsorption tower body is provided with a first air port, and the bottom cover is provided with a second air port; the method is characterized in that: the top of the adsorption tower body is provided with a tower top sealing component, the tower top sealing component comprises a first supporting framework, an airflow buffer cavity is arranged on the upper side of the first supporting framework, and a first filtering piece is arranged below the first supporting framework; the periphery of the first supporting framework is circumferentially provided with a caulking groove, a first O-shaped ring is embedded in the caulking groove, and the first supporting framework is abutted against the inner wall of the tower body of the adsorption tower through the first O-shaped ring for sealing contact. According to the utility model, the air flow buffer cavity is designed at the first air port, so that the smoothness of air flow is ensured.

Description

Detachable molecular sieve adsorption tower subassembly

Technical Field

The utility model relates to the technical field of molecular sieve adsorption towers of oxygenerators, in particular to a detachable molecular sieve adsorption tower component.

Background

The structure of the existing molecular sieve adsorption tower is shown in the Chinese patent No. 113747965A. The molecular sieve adsorption tower structure disclosed in this document, including adsorption tower body and bottom, the cavity intussuseption of adsorption tower body packs molecular sieve, and its existence is the weak point:

firstly, an O-shaped ring is required to be arranged on a second air port on the bottom cover, and then the second air port is connected with an air duct to realize ventilation, so that the installation is inconvenient, and the air tightness is not ensured;

and secondly, the top of the adsorption tower is directly internally provided with filter cotton, and the filter cotton is directly attached to the first air port at the top, so that the air flow is easy to be blocked.

Disclosure of Invention

The utility model aims to provide a detachable molecular sieve adsorption tower assembly so as to improve the convenience and air tightness of assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the detachable molecular sieve adsorption tower assembly comprises two adsorption tower bodies and a bottom cover which are arranged in parallel, wherein the inner cavity of each adsorption tower body is filled with a molecular sieve, the top of each adsorption tower body is provided with a first air port, and the bottom cover is provided with a second air port; the top of the adsorption tower body is provided with a tower top sealing component, the tower top sealing component comprises a first supporting framework, an airflow buffer cavity is arranged on the upper side of the first supporting framework, and a first filtering piece is arranged below the first supporting framework; the periphery of the first supporting framework is circumferentially provided with a caulking groove, a first O-shaped ring is embedded in the caulking groove, and the first supporting framework is abutted against the inner wall of the tower body of the adsorption tower through the first O-shaped ring for sealing contact.

In the above scheme, the airflow buffer cavity is funnel-shaped with big top and small bottom.

In the above scheme, a tower bottom sealing component is arranged at the bottom of the adsorption tower body and comprises a second supporting framework, a second O-shaped ring and a second filtering piece, wherein the second supporting framework is provided with a caulking groove on the outer ring, the second O-shaped ring is nested on the caulking groove of the second supporting framework, and the second supporting framework is in propping sealing contact with the inner wall of the adsorption tower body through the second O-shaped ring; the second filter piece covers the top surface side of the second supporting framework.

Further, an elastic piece is supported and arranged between the second supporting framework and the bottom cover.

In the next step, the elastic piece is a pressure spring, a first positioning protrusion is arranged on the second supporting framework corresponding to the upper end of the pressure spring, a second positioning protrusion is arranged on the inner surface of the bottom cover corresponding to the lower end of the pressure spring, the upper end of the pressure spring is matched and positioned with the first positioning protrusion, and the lower end of the pressure spring is matched and positioned with the second positioning protrusion.

In the scheme, the bottom cover is provided with the sealing groove, the sealing groove is embedded with the sealing gasket, and the inner diameter and the outer edge of the sealing gasket are provided with the positioning protrusions to be in clamping fit with the groove wall of the sealing groove; the bottom cover is pressed against the tower body of the adsorption tower through the top surface of the sealing gasket so as to achieve sealing connection.

Further, the sealing groove is of an 8-shaped structure.

In the scheme, the handle is arranged on the bottom cover.

In the above scheme, the second air port of the bottom cover is integrally formed and connected with a second air port air duct extending upwards, and the second air port air duct is communicated with the inner cavity of the absorption tower body through the inner channel of the bottom cover.

In the above scheme, the bottom cover is provided with a process hole at the lower end of the air duct corresponding to the second air port so as to form an internal channel for connecting the air duct of the second air port with the inside of the bottom cover, and the hole end of the process hole is plugged by a plug.

Based on the technical scheme, the utility model has the following advantages and effects:

1. because the air flow buffer cavity is designed at the first air port, the air flow smoothness is ensured;

2. the second air port air duct is integrally formed on the bottom cover, so that the installation and the connection are convenient, and the air tightness is good;

3. because the utility model designs that the lower end of the air duct corresponding to the second air port is provided with the process hole on the bottom cover, an internal channel for connecting the air duct of the second air port with the inside of the bottom cover is formed, the integrated molding of the bottom cover and the air duct mould is convenient, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the utility model in front elevational view in full section;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2 at A;

FIG. 4 is a schematic diagram showing a semi-section of a body of an adsorption tower according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a bottom cover according to an embodiment of the present utility model, the bottom cover being in an inside-up state;

FIG. 6 is a schematic perspective view of a bottom cover according to an embodiment of the present utility model, the bottom cover being in an outward-facing upward state;

FIG. 7 is a schematic front view of an overhead seal assembly according to an embodiment of the utility model;

FIG. 8 is an exploded schematic view of an overhead seal assembly according to an embodiment of the present utility model;

FIG. 9 is a schematic view in semi-section of a first support armature according to an embodiment of the utility model;

FIG. 10 is a schematic front view of a bottom seal assembly according to an embodiment of the present utility model;

FIG. 11 is an exploded schematic view of a bottom seal assembly in accordance with an embodiment of the present utility model;

FIG. 12 is a schematic view in semi-section of a second support framework according to an embodiment of the present utility model;

fig. 13 is a schematic view of a sealing gasket.

In the above attached figure 8:

1. an adsorption tower body; 11. a headspace;

2. a bottom cover; 21. a second positioning protrusion; 22. sealing the groove; 221. a sealing gasket; 2211. positioning the bulge; 23. a handle; 24. a mounting hole; 25. a process hole; 251. a plug;

3. a first gas port;

4. a second gas port;

5. a second port airway;

6. an overhead seal assembly; 61. a first support frame; 62. a first O-ring; 63. a first filter;

7. an air flow buffer cavity;

8. a bottom seal assembly; 81. a first support frame; 811. a first positioning protrusion; 82. a first O-ring; 83. a first filter;

9. a compression spring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and examples:

examples: see fig. 1-13:

the utility model provides a detachable molecular sieve adsorption tower subassembly, includes two adsorption tower body 1 and bottom 2 that set up side by side, fills the molecular sieve in the 1 inner chamber of adsorption tower body, adsorption tower body top is equipped with first gas port 3, be equipped with second gas port 4 on the bottom. The two adsorption towers 1 have the same structure and can work alternately.

Referring to fig. 1, a second air port air duct extending upwards is integrally formed on a second air port 4 of the bottom cover 2, and the second air port air duct 5 is communicated with the inner cavity of the adsorption tower body 1 through an inner channel of the bottom cover 2. The design is convenient for connection, and the air tightness is also effectively ensured.

Referring to fig. 2, 3 and 4, the inner top of the inner cavity of each adsorption tower body 1 is raised to form a top space 11, and a top sealing assembly 6 is arranged in the top space 11.

Referring to fig. 3, 7 and 8, the top sealing assembly 6 is composed of a first supporting frame 61, a first O-ring 62 and a first filter 63. The first supporting framework 61 is a frame-shaped body, the outer ring of the first supporting framework 61 is provided with a caulking groove, the first O-shaped ring 62 is nested on the caulking groove of the first supporting framework 61, and the first supporting framework 61 is abutted against the inner wall of the top space 11 through the first O-shaped ring 62 in a sealing contact manner.

Referring to fig. 3, 7 and 8, the first filter 63 covers the bottom surface side (i.e. the side facing the inner cavity) of the first supporting frame 61, and the first filter 63 uses the filter cotton with smaller pores, so as to increase the sealing reliability.

As shown in fig. 3, a cavity is further recessed on the top of the first supporting frame 61 at a position corresponding to the first air port 3, and serves as an air flow buffer cavity 7. Preferably, the airflow buffering chamber 7 is in a funnel shape with a large top and a small bottom, so as to buffer airflow, and enable the airflow to smoothly flow out of the first air port 3.

Referring to fig. 2, a bottom sealing assembly 8 is disposed at the bottom of each inner cavity of the adsorption tower body 1.

Referring to fig. 10 and 11, the bottom sealing assembly 8 is composed of a second supporting framework 81, a second O-ring 82 and a second filtering member 83, wherein the second supporting framework 81 is a frame-shaped body, a caulking groove is formed on the outer ring of the second supporting framework, the second O-ring 82 is nested on the caulking groove of the second supporting framework 81, and the second supporting framework 81 is in abutting sealing contact with the inner wall of the adsorption tower body 1 through the second O-ring 82; the second filter 83 is covered on the top surface side (i.e., the side facing the cavity inner cavity) of the second supporting frame 81.

Specifically, referring to fig. 2, an elastic member is supported between the second support frame 81 and the bottom cover 2. The elastic member is a compression spring 9, a first positioning protrusion 811 (see fig. 12) is provided on the second supporting frame 81 corresponding to the upper end of the compression spring 9, a second positioning protrusion 21 (see fig. 5) is provided on the inner surface of the bottom cover 2 corresponding to the lower end of the compression spring 9, the upper end of the compression spring 9 is positioned in cooperation with the first positioning protrusion 811, and the lower end of the compression spring 9 is positioned in cooperation with the second positioning protrusion 21, that is, the bottom sealing assembly 8 is supported and kept by the compression spring 9, that is, the molecular sieve filled in the inner cavity is compressed.

Referring to fig. 2, the bottom cover 2 is provided with a sealing groove 22 (see fig. 5), a sealing gasket 221 is embedded in the sealing groove 22, and positioning protrusions 211 (see fig. 13) are arranged on the inner diameter and the outer edge of the sealing gasket 221 to be in clamping fit with the groove wall of the sealing groove 22; the bottom cover 2 is pressed against the adsorption tower body 1 through the top surface of the sealing gasket 221 so as to achieve sealing connection.

Referring to fig. 2, the seal groove 22 has a shape of an 8, and the seal ring 221 has a shape of an 8.

Specifically, a mounting hole 24 (see fig. 6) is provided on the bottom surface of the bottom cover 2, and a handle 23 is mounted through the mounting hole 24.

Referring to fig. 1, the bottom cover 2 is provided with a process hole 25 at the lower end of the air duct 5 corresponding to the second air port, which is mainly used for inserting a mold at the outer side during injection molding of the base, so as to form an L-shaped air inlet pipe, so as to form an internal channel connecting the air duct 5 of the second air port with the inside of the bottom cover 2, and the hole end of the process hole 25 is plugged by a plug 251.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. The detachable molecular sieve adsorption tower assembly comprises two adsorption tower bodies (1) and a bottom cover (2) which are arranged in parallel, wherein the inner cavity of each adsorption tower body (1) is filled with a molecular sieve, the top of each adsorption tower body is provided with a first air port (3), and the bottom cover is provided with a second air port (4); the method is characterized in that: the top of the adsorption tower body (1) is provided with a tower top sealing component (6), the tower top sealing component (6) comprises a first supporting framework (61), an airflow buffer cavity (7) is arranged on the upper side of the first supporting framework (61), and a first filtering piece (63) is arranged below the first supporting framework (61); the periphery of the first supporting framework (61) is circumferentially provided with a caulking groove, a first O-shaped ring (62) is embedded in the caulking groove, and the first supporting framework (61) is in abutting sealing contact with the inner wall of the adsorption tower body (1) through the first O-shaped ring (62).

2. The removable molecular sieve adsorption tower assembly of claim 1, wherein: the airflow buffer cavity (7) is funnel-shaped with big top and small bottom.

3. The removable molecular sieve adsorption tower assembly of claim 1, wherein: the bottom of the adsorption tower body (1) is provided with a tower bottom sealing component (8), the tower bottom sealing component (8) comprises a second supporting framework (81), a second O-shaped ring (82) and a second filtering piece (83), a caulking groove is formed in the outer ring of the second supporting framework (81), the second O-shaped ring (82) is nested on the caulking groove of the second supporting framework (81), and the second supporting framework (81) is in butt sealing contact with the inner wall of the adsorption tower body (1) through the second O-shaped ring (82); the second filter (83) is coated on the top surface side of the second supporting framework (81).

4. A removable molecular sieve adsorption column assembly according to claim 3, wherein: an elastic piece is supported between the second supporting framework (81) and the bottom cover (2).

5. The removable molecular sieve adsorption tower assembly of claim 4, wherein: the elastic piece is a pressure spring (9), a first positioning protrusion (811) is arranged on the second supporting framework (81) corresponding to the upper end of the pressure spring (9), a second positioning protrusion (21) is arranged on the inner surface of the bottom cover (2) corresponding to the lower end of the pressure spring (9), the upper end of the pressure spring (9) is matched and positioned with the first positioning protrusion (811), and the lower end of the pressure spring (9) is matched and positioned with the second positioning protrusion (21).

6. The removable molecular sieve adsorption tower assembly of claim 1, wherein: a sealing groove (22) is formed in the bottom cover (2), a sealing gasket (221) is embedded in the sealing groove (22), and positioning protrusions (2211) are respectively arranged on the inner diameter and the outer edge of the sealing gasket (221) to be in clamping fit with the groove wall of the sealing groove (22); the bottom cover (2) is pressed against the adsorption tower body (1) through the top surface of the sealing gasket (221) so as to realize sealing connection.

7. The removable molecular sieve adsorption tower assembly of claim 6, wherein: the sealing groove (22) is of an 8-shaped structure.

8. The removable molecular sieve adsorption tower assembly of claim 1, wherein: a handle (23) is arranged on the bottom cover (2).

9. The removable molecular sieve adsorption tower assembly of claim 1, wherein: the second air port (4) of the bottom cover (2) is integrally formed and connected with a second air port air duct (5) extending upwards, and the second air port air duct (5) is communicated with the inner cavity of the adsorption tower body (1) through the inner channel of the bottom cover (2).

10. The removable molecular sieve adsorption tower assembly of claim 1, wherein: and a process hole (25) is formed in the bottom cover (2) at the lower end corresponding to the second gas port gas guide pipe (5) so as to form an internal channel for connecting the second gas port gas guide pipe (5) with the inside of the bottom cover (2), and the hole end of the process hole (25) is plugged by a plug (251).