CN219764913U

CN219764913U - Integrated gas distribution structure for front end of molecular sieve of oxygenerator

Info

Publication number: CN219764913U
Application number: CN202223536685.0U
Authority: CN
Inventors: 徐超; 宗红彦; 常永攀; 庆宏杨; 赵帅
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: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-09-29
Anticipated expiration: 2032-12-29

Abstract

An integrated gas distribution structure for the front end of an oxygenerator molecular sieve comprises an electromagnetic valve seat, a first electromagnetic valve, a second electromagnetic valve and a channel box; the method is characterized in that: the electromagnetic valve seat is convexly provided with a butt joint part, the channel box is provided with a matching part, and a first communication cavity, a second communication cavity, a third communication cavity and a fourth communication cavity which are mutually sealed and isolated are formed in the joint part of the butt joint part and the matching part; the first communication cavity, the second communication cavity and the third communication cavity are correspondingly connected with three air vents of the first electromagnetic valve, the first communication cavity, the second communication cavity and the fourth communication cavity are correspondingly connected with three air vents of the second electromagnetic valve, the first communication cavity is communicated with the first adsorption tower interface, the second communication cavity is communicated with the second adsorption tower interface, the third communication cavity is communicated with the air inlet, and the fourth communication cavity is communicated with the nitrogen discharge port. The embodiment is composed of the electromagnetic valve seat 1 and the channel box 4 except the electromagnetic valve, and has high structural integration level and simple assembly.

Description

Integrated gas distribution structure for front end of molecular sieve of oxygenerator

Technical Field

The utility model relates to a gas distribution structure at the front end of a molecular sieve of an oxygenerator.

Background

The molecular sieve oxygenerator is an oxygenerator which adopts a pressure swing adsorption principle to separate oxygen from air, the molecular sieve oxygenerator compresses the air by a compressor, the air enters an adsorption tower filled with molecular sieve through a breather valve after being compressed, and the oxygen is periodically prepared through adsorption and desorption circulation.

An air inlet component is connected between the compressor component and the adsorption tower component, namely a gas distribution structure at the front end of the molecular sieve, and particularly referring to Chinese patent No. 212639960U, the air inlet component comprises a multi-way electromagnetic valve which comprises an air inlet pipeline and a nitrogen gas discharge pipeline, the air inlet pipeline is connected with the output end of the compressor main body to the adsorption tower component, and the nitrogen gas discharge pipeline is connected with the adsorption tower component to the compressor shell.

The gas distribution structure at the front end of the molecular sieve is a representative structure which can be seen in Chinese patent No. 213375820U and comprises an electromagnetic valve seat, an upper box cover, a lower box cover and a two-position three-way electromagnetic valve, wherein the upper box cover and the lower box cover are in sealing buckling connection, the electromagnetic valve seat is connected to the top of the upper box cover through a rubber piece, and the two-position three-way electromagnetic valve is inserted into the electromagnetic valve seat. That is, as shown in fig. 4 of the above patent, the electromagnetic valve seat and the top of the upper cover are connected by a rubber member, and the rubber member is locked and sealed by a rubber member hoop, so that the electromagnetic valve seat is integrally assembled by 5 split parts, the number of the parts is large, and the assembly is inconvenient.

Disclosure of Invention

The utility model aims to provide an integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator, which is compact in structure and simplifies assembly procedures.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an integrated gas distribution structure for the front end of an oxygenerator molecular sieve comprises a channel box, an electromagnetic valve seat, a first electromagnetic valve and a second electromagnetic valve, wherein the first electromagnetic valve and the second electromagnetic valve are fixed on the electromagnetic valve seat; the channel box is provided with a first adsorption tower interface, a second adsorption tower interface, a nitrogen discharge port and an air inlet connected with the compressor; the electromagnetic valve seat is provided with a butt joint part in a protruding mode, the channel box is provided with a matching part corresponding to the butt joint part, the electromagnetic valve seat is connected with the channel box in a sealing mode through the butt joint part and the matching part, and a first communication cavity, a second communication cavity, a third communication cavity and a fourth communication cavity which are isolated in a sealing mode are formed in the joint part of the butt joint part and the matching part; the first communication cavity, the third communication cavity and the fourth communication cavity are correspondingly connected with the first electromagnetic valve through channels in the electromagnetic valve seat to form three air vents of the electromagnetic valve seat, the first communication cavity, the second communication cavity and the fourth communication cavity are correspondingly connected with the second electromagnetic valve through channels in the electromagnetic valve seat to form three air vents of the electromagnetic valve seat, the first communication cavity is communicated with the first adsorption tower interface through channels in the channel box, the second communication cavity is communicated with the second adsorption tower interface through channels in the channel box, the third communication cavity is communicated with the air inlet through channels in the channel box, and the fourth communication cavity is communicated with the nitrogen discharge port through channels in the channel box.

In the above scheme, the nitrogen discharge port and the air inlet connected with the compressor are arranged on the same side face of the channel box, and the first adsorption tower interface and the second adsorption tower interface are arranged on the other side face of the channel box.

In the above scheme, the first electromagnetic valve and the second electromagnetic valve are arranged in parallel, the vent is longitudinally arranged corresponding to the electromagnetic valve seat, the topmost vent is communicated with the fourth communication cavity, the middle vent corresponding to the first electromagnetic valve is communicated with the first communication cavity, the middle vent corresponding to the second electromagnetic valve is communicated with the second communication cavity, and the innermost vent is communicated with the third communication cavity.

In the above scheme, the end face of the butt joint part facing the channel box is provided with a first concave cavity, a second concave cavity, a third concave cavity and a fourth concave cavity in a separation mode, the first concave cavity, the second concave cavity and the third concave cavity are correspondingly connected with three air vents of the first electromagnetic valve on the electromagnetic valve seat through the internal channel of the electromagnetic valve seat, and the first concave cavity, the second concave cavity and the fourth concave cavity are correspondingly connected with three air vents of the second electromagnetic valve on the electromagnetic valve seat through the internal channel of the electromagnetic valve seat; the first concave cavity is communicated with the first adsorption tower interface, the second concave cavity is communicated with the second adsorption tower interface, the third concave cavity is communicated with the air inlet, and the fourth concave cavity is communicated with the nitrogen discharge port; after the matching part cover is arranged on the butt joint part and is in sealing connection, the first cavity, the second cavity, the third cavity and the fourth cavity form a first communication cavity, a second communication cavity, a third communication cavity and a fourth communication cavity.

In the above scheme, around first cavity, second cavity, third cavity and fourth cavity circumference on the butt joint portion are equipped with location portion, around first cavity, second cavity, third cavity and fourth cavity circumference on the joining in marriage the portion and be equipped with location cooperation portion, location portion with in the location cooperation portion, one is first protruding muscle, and the other is first recess to this mutual card joins in marriage sealedly.

Further, the butt joint portion and the mating portion are connected by ultrasonic welding.

In the scheme, the channel box is formed by sealing and buckling an upper box body and a lower box body; the upper box body and the lower box body are arranged on opposite surfaces, one of the upper box body and the lower box body is provided with a plurality of long grooves, and the other one of the upper box body and the lower box body is covered on the long grooves to form a channel in the channel box.

Further, on the opposite surfaces of the upper box body and the lower box body, a positioning part is arranged on one of the upper box body and the lower box body around the periphery of the plurality of long grooves, a positioning matching part is arranged on the other of the upper box body and the lower box body around the periphery of the plurality of long grooves, one of the positioning part and the positioning matching part is a second convex rib, and the other of the positioning part and the positioning matching part is a second groove, so that the two parts are mutually clamped and sealed.

Still further, the upper box body and the lower box body are connected through ultrasonic welding.

In the above scheme, at least two nitrogen discharge ports are arranged and are communicated with the fourth communication cavity through channels in the channel box.

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

1. besides the electromagnetic valve, the electromagnetic valve seat and the channel box are formed, so that the electromagnetic valve seat and the channel box have high structural integration level and are simple to assemble;

2. the first adsorption tower interface and the second adsorption tower interface can be directly connected with the molecular sieve adsorption tower, so that an air duct is omitted, the air inlet stroke is shortened, the assembly process is simplified, and the air leakage risk is reduced;

3. the utility model has compact integral structure and small volume, can be arranged in the fan runner of the oxygenerator, can radiate the electromagnetic valve, and improves the working environment of the electromagnetic valve.

Drawings

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

FIG. 2 is a schematic overall perspective view of a second embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a schematic illustration of a butt joint on a solenoid valve seat according to an embodiment of the utility model;

FIG. 5 is a schematic view of the mating portion of the lower case according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the lower case of an embodiment of the present utility model, showing the side thereof opposite to the upper case;

fig. 7 is a schematic view of the upper case of the embodiment of the present utility model, showing the side thereof opposite to the lower case.

In the above figures:

1. an electromagnetic valve seat; 11. a butt joint part; 111. a first cavity; 112. a second cavity; 113. a third cavity; 114. a fourth cavity; 115. the first convex rib;

2. a first electromagnetic valve;

3. a second electromagnetic valve;

4. a channel box; 41. an upper case; 411. an air inlet; 412. a nitrogen discharge port; 413. a second groove; 42. a lower case; 421. a first adsorption column interface; 422. a second adsorption column interface; 423. the second convex rib; 43. a mating portion; 431. a first groove; 44. a first channel; 45. a second channel; 46. a third channel; 47. and a fourth channel.

5. A first communication chamber;

6. a second communication chamber;

7. a third communication chamber;

8. and a fourth communication cavity.

Description of the embodiments

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

examples: see fig. 1-7:

an integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator comprises an electromagnetic valve seat 1, a first electromagnetic valve 2 and a second electromagnetic valve 3 which are fixed on the electromagnetic valve seat 1, and a channel box 4 formed by sealing and buckling an upper box body 41 and a lower box body 42.

Referring to fig. 1-3, the channel box 4 is provided with a first adsorption tower interface 421, a second adsorption tower interface 422, a nitrogen discharge port 412, and an air inlet 411 connected to a compressor.

Specifically, in the present embodiment, the lower case 42 is provided with a first adsorption tower interface 421 and a second adsorption tower interface 422, and the upper case 41 is provided with a nitrogen discharge port 412 and an air inlet 411 connected to a compressor. Still preferably, the first adsorption tower interface 421 and the second adsorption tower interface 422 are downward arranged on the lower box 42 in parallel, so as to be directly connected with the molecular sieve adsorption tower, thereby reducing the stroke loss of the gas and reducing the risk of air leakage.

Referring to fig. 3, the electromagnetic valve seat 1 is provided with a butt joint portion 11 in a protruding manner, and the channel box 4 is provided with a mating portion 43 corresponding to the butt joint portion 11.

Referring to fig. 3, the solenoid valve seat 1 and the channel box 4 are hermetically connected by the abutting portion 11 and the mating portion 43, and a first communication chamber 5, a second communication chamber 6, a third communication chamber 7, and a fourth communication chamber 8, which are hermetically isolated from each other, are formed inside the junction of the abutting portion 11 and the mating portion 43.

The first communication cavity 5, the third communication cavity 7 and the fourth communication cavity 8 are correspondingly connected with three air vents of the electromagnetic valve seat 1 of the first electromagnetic valve 2 through channels in the electromagnetic valve seat 1, and the first communication cavity 5, the second communication cavity 6 and the fourth communication cavity 8 are correspondingly connected with three air vents of the electromagnetic valve seat 1 of the second electromagnetic valve 3 through channels in the electromagnetic valve seat 1.

The nitrogen discharge port 412 and the air inlet 411 connected with the compressor are arranged on the same side surface of the channel box 4, and the first adsorption tower interface 421 and the second adsorption tower interface 422 are arranged on the other side surface of the channel box 4, so that the space occupation is minimized.

The first electromagnetic valve 2 and the second electromagnetic valve 3 are arranged in parallel, the air vents are longitudinally arranged corresponding to the electromagnetic valve seat 1, the topmost air vents are communicated with the fourth communication cavity 8, the middle air vents corresponding to the first electromagnetic valve 2 are communicated with the first communication cavity 5, the middle air vents corresponding to the second electromagnetic valve 3 are communicated with the second communication cavity 6, and the innermost air vents are communicated with the third communication cavity 7.

The first communicating cavity 5 is communicated with the first adsorption tower interface 421 through a channel in the channel box 4, the second communicating cavity 6 is communicated with the second adsorption tower interface 422 through a channel in the channel box 4, the third communicating cavity 7 is communicated with the air inlet 411 through a channel in the channel box 4, and the fourth communicating cavity 8 is communicated with the nitrogen discharge port 412 through a channel in the channel box 4.

Specifically, as shown in fig. 4, the end surface of the abutting portion 11 facing the channel box 4 is provided with a first concave cavity 111, a second concave cavity 112, a third concave cavity 113 and a fourth concave cavity 114 in a separated manner, the first concave cavity 111, the second concave cavity 112 and the third concave cavity 113 are correspondingly connected with three air vents of the first electromagnetic valve 2 on the electromagnetic valve seat 1 through the internal channel of the electromagnetic valve seat 1, and the first concave cavity 111, the second concave cavity 112 and the fourth concave cavity 114 are correspondingly connected with three air vents of the second electromagnetic valve 3 on the electromagnetic valve seat 1 through the internal channel of the electromagnetic valve seat 1; and the opening of the adapting portion 43 corresponding to the first cavity 111 is communicated with the first adsorption tower interface 421, the opening of the adapting portion corresponding to the second cavity 112 is communicated with the second adsorption tower interface 422, the opening of the adapting portion corresponding to the third cavity 113 is communicated with the air inlet 411, and the opening of the adapting portion corresponding to the fourth cavity 114 is communicated with the nitrogen discharge port 412. After the mating portion 43 is covered on the abutting portion 11 and is connected in a sealing manner, the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 form the first communication cavity 5, the second communication cavity 6, the third communication cavity 7 and the fourth communication cavity 8.

As shown in fig. 4, the docking portion 11 is circumferentially provided with positioning portions around the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114, the mating portion 43 is circumferentially provided with positioning matching portions around the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114, one of the positioning portions and the positioning matching portions is a first rib 115, and the other is a first groove 431, so that the two are mutually clamped and sealed. The butt portion 11 and the mating portion 43 are then connected by ultrasonic welding.

As shown in fig. 5, the positions of the mating portion 43 corresponding to the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 are a plane.

Of course, in practice, the positions of the coupling portion 43 corresponding to the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 may be provided with corresponding recesses, so that the first cavity 111 and the corresponding recess of the coupling portion 43 may be spliced to form the first communication slot 5, and similarly, the second communication slot 6, the third communication slot 7 and the fourth communication slot 8 may be formed by two halves of the same. The same effect can be achieved.

In practice, the first cavity, the second cavity, the third cavity and the fourth cavity may be disposed on the mating portion 43 in reverse, and the planar sealing cover is disposed on the mating portion correspondingly, so that the same effect can be achieved.

Referring to fig. 3, 6 and 7, the upper case 41 and the lower case 42 are provided with a plurality of elongated grooves on opposite sides thereof, and the other is capped on the elongated grooves to form channels in the channel box. Specifically, as shown in fig. 7, the channels in the channel box 4 are specifically formed with a first channel 44, a second channel 45, a third channel 46, and a fourth channel 47; one end of the first channel 44 is connected with the first communication cavity 5, and the other end is communicated with the first adsorption tower interface 421; one end of the second channel 45 is connected with the second communication cavity 6, and the other end of the second channel is communicated with the second adsorption tower interface 422; one end of the third channel 46 is connected with the third communication cavity 7, and the other end is communicated with the air inlet 411; the fourth passage 47 has one end connected to the fourth communication chamber 8 and the other end connected to the nitrogen discharge port 412.

The opposite surfaces of the upper case 41 and the lower case 42 are provided with positioning parts around the periphery of the plurality of long grooves, and positioning matching parts around the periphery of the plurality of long grooves, wherein one of the positioning parts and the positioning matching parts is a second convex rib 423, and the other is a second groove 413, so that the two parts are mutually clamped and sealed. As shown in fig. 6 and 7, specifically, the lower case 42 is provided with a second rib 423, the upper case 41 is provided with a second groove 413, so as to achieve sealing engagement, and then ultrasonic welding connection is performed. Of course, in practice, the second ribs 423 are provided on the upper case 41, and the second grooves 413 are provided on the lower case 42, so that the same effect is achieved.

Specifically, as shown in fig. 3 and 7, at least two nitrogen discharge ports 412 are provided, and they all communicate with the fourth communication chamber 8 via the fourth passage 47. One of the nitrogen discharge ports 412 is extended upward, and the other nitrogen discharge port 412 is extended horizontally. The two nitrogen discharging openings can be provided with two nitrogen discharging silencers, and the silencing effect is better.

The embodiment is composed of the electromagnetic valve seat 1 and the channel box 4 except the electromagnetic valve, and has high structural integration level and simple assembly.

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. An integrated gas distribution structure for the front end of an oxygenerator molecular sieve comprises a channel box (4), an electromagnetic valve seat (1), a first electromagnetic valve (2) and a second electromagnetic valve (3) which are fixed on the electromagnetic valve seat (1); the channel box (4) is provided with a first adsorption tower interface (421), a second adsorption tower interface (422), a nitrogen discharge port (412) and an air inlet (411) connected with a compressor; the method is characterized in that:

the electromagnetic valve seat (1) is convexly provided with a butt joint part (11), the channel box (4) is provided with a matching part (43) corresponding to the butt joint part (11), the electromagnetic valve seat (1) is in sealing connection with the channel box (4) through the butt joint part (11) and the matching part (43), and a first communication cavity (5), a second communication cavity (6), a third communication cavity (7) and a fourth communication cavity (8) which are mutually isolated in a sealing way are formed in the joint part of the butt joint part (11) and the matching part (43); the first communication cavity (5), the third communication cavity (7) and the fourth communication cavity (8) are correspondingly connected with the first electromagnetic valve (2) through channels in the electromagnetic valve seat (1) to be in three vents of the electromagnetic valve seat (1), the first communication cavity (5), the second communication cavity (6) and the fourth communication cavity (8) are correspondingly connected with the second electromagnetic valve (3) through channels in the electromagnetic valve seat (1) to be in three vents of the electromagnetic valve seat (1), the first communication cavity (5) is communicated with the first adsorption tower interface (421) through channels in the channel box (4), the second communication cavity (6) is communicated with the second adsorption tower interface (422) through channels in the channel box (4), the third communication cavity (7) is communicated with the air inlet (411) through channels in the channel box (4), and the fourth communication cavity (8) is communicated with the nitrogen outlet (412) through channels in the channel box (4).

2. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 1, wherein: the nitrogen discharge port (412) and the air inlet (411) connected with the compressor are arranged on the same side face of the channel box (4), and the first adsorption tower interface (421) and the second adsorption tower interface (422) are arranged on the other side face of the channel box (4).

3. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 1, wherein: the first electromagnetic valve (2) and the second electromagnetic valve (3) are arranged in parallel, the vent is longitudinally arranged corresponding to the electromagnetic valve seat (1), the topmost vent is communicated with the fourth communication cavity (8), the middle vent corresponding to the first electromagnetic valve (2) is communicated with the first communication cavity (5), the middle vent corresponding to the second electromagnetic valve (3) is communicated with the second communication cavity (6), and the innermost vent is communicated with the third communication cavity (7).

4. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 1, wherein: the butt joint part (11) is provided with a first concave cavity (111), a second concave cavity (112), a third concave cavity (113) and a fourth concave cavity (114) in a separated mode on the end face of the channel box (4), the first concave cavity (111), the second concave cavity (112) and the third concave cavity (113) are correspondingly connected with three air vents of the first electromagnetic valve (2) on the electromagnetic valve seat (1) through internal channels of the electromagnetic valve seat (1), and the first concave cavity (111), the second concave cavity (112) and the fourth concave cavity (114) are correspondingly connected with three air vents of the second electromagnetic valve (3) on the electromagnetic valve seat (1) through internal channels of the electromagnetic valve seat (1); the opening of the matching part (43) corresponding to the first concave cavity (111) is communicated with the first adsorption tower interface (421), the opening of the matching part corresponding to the second concave cavity (112) is communicated with the second adsorption tower interface (422), the opening of the matching part corresponding to the third concave cavity (113) is communicated with the air inlet (411), and the opening of the matching part corresponding to the fourth concave cavity (114) is communicated with the nitrogen discharge port (412); after the matching part (43) is covered on the butt joint part (11) and is in sealing connection, the first concave cavity (111), the second concave cavity (112), the third concave cavity (113) and the fourth concave cavity (114) form a first communication cavity (5), a second communication cavity (6), a third communication cavity (7) and a fourth communication cavity (8).

5. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 4, wherein: the butt joint part (11) is circumferentially provided with a positioning part around the first concave cavity (111), the second concave cavity (112), the third concave cavity (113) and the fourth concave cavity (114), the butt joint part (43) is circumferentially provided with a positioning matching part around the first concave cavity (111), the second concave cavity (112), the third concave cavity (113) and the fourth concave cavity (114), one of the positioning parts and the positioning matching part is a first convex rib (115), and the other is a first groove (431) so as to be mutually clamped and sealed.

6. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 5, wherein: the butt joint part (11) and the matching part (43) are connected through ultrasonic welding.

7. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 1, wherein: the channel box (4) is formed by sealing and buckling an upper box body (41) and a lower box body (42); the upper case (41) and the lower case (42) are provided with a plurality of elongated grooves on opposite sides thereof, and the other is covered on the elongated grooves to form channels in the channel box.

8. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator of claim 7, wherein: the upper box body (41) and the lower box body (42) are arranged on opposite surfaces, one of the upper box body and the lower box body is provided with a positioning part around the periphery of the plurality of long grooves, the other of the upper box body and the lower box body is provided with a positioning matching part around the periphery of the plurality of long grooves, one of the positioning part and the positioning matching part is a second convex rib (423), and the other of the positioning part and the positioning matching part is a second groove (413) so as to be mutually clamped and sealed.

9. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator of claim 8, wherein: the upper box body (41) and the lower box body (42) are connected through ultrasonic welding.

10. The integrated gas distribution structure for the front end of a molecular sieve of an oxygenerator according to claim 1, wherein: at least two nitrogen discharge ports (412) are arranged and are communicated with a fourth communication cavity (8) through channels in the channel box.