CN219590269U

CN219590269U - Detection device for performance of PSA (pressure swing adsorption) oxygen-making molecular sieve

Info

Publication number: CN219590269U
Application number: CN202320264026.1U
Authority: CN
Inventors: 周添添
Original assignee: Qingdao Hengxintian New Material Technology Co ltd
Current assignee: Qingdao Hengxintian New Material Technology Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-25
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a detection device for the performance of a PSA (pressure swing adsorption) oxygen-making molecular sieve, and relates to the technical field of oxygen making. The device comprises an oxygen guide pipe, wherein one end of the oxygen guide pipe is communicated with an oxygen outlet of an oxygen-making molecular sieve body, a sealing component is fixedly arranged at the other end of the oxygen guide pipe, an air guide hose is fixedly arranged at the outlet end of the sealing component, and an oxygen concentration detection component is arranged at the outlet end of the air guide hose so as to detect the oxygen concentration. The utility model can judge whether the performance of the molecular sieve is reduced according to the liquid-oil change of the liquid-oil cylinder, and has strong practicability.

Description

Detection device for performance of PSA (pressure swing adsorption) oxygen-making molecular sieve

Technical Field

The utility model belongs to the technical field of oxygen production, and particularly relates to a detection device for the performance of a PSA oxygen production molecular sieve.

Background

The PSA oxygenerator is a device for extracting oxygen from air based on Pressure Swing Adsorption (PSA) technology, molecular sieve is filled in the oxygenerator as adsorbent, a compressor is used as power, molecular sieve physical adsorption and desorption technology is utilized, nitrogen in the air is adsorbed by the adsorbent when the compressor is pressurized, the rest oxygen is collected, and high-concentration oxygen is obtained after purification treatment. The oxygen generator of the type can rapidly generate oxygen and has high oxygen concentration, is suitable for oxygen therapy and oxygen health care of various people, and can be cited in the medical industry;

the molecular sieve in the PSA oxygen generating equipment adsorbs nitrogen in the compressed air according to a pressure swing adsorption technology, so that the separation of the nitrogen and the oxygen is realized; wherein, the oxygen production concentration depends on the performance of the molecular sieve; the molecular sieve can be greatly weakened after long-time use, so that the adsorption capacity to nitrogen is weakened, the concentration of oxygen is reduced, and in order to determine whether the molecular sieve is weakened, the utility model provides a detection device for the performance of the PSA oxygen-making molecular sieve.

Disclosure of Invention

The utility model aims to provide a detection device for the performance of a PSA (pressure swing adsorption) oxygen-making molecular sieve, which solves the problem that whether the performance of the molecular sieve is weakened or not is difficult to determine by arranging an oxygen concentration detection assembly.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a detection device for the performance of a PSA (pressure swing adsorption) oxygen-making molecular sieve, which comprises an oxygen guide pipe, wherein one end of the oxygen guide pipe is communicated with an oxygen outlet of the oxygen-making molecular sieve body, the other end of the oxygen guide pipe is fixedly provided with a sealing assembly, the outlet end of the sealing assembly is fixedly provided with an air guide hose, and the outlet end of the air guide hose is provided with an oxygen concentration detection assembly for detecting the oxygen concentration.

Further, the sealing component comprises a fixed plate, an external thread head, a cannula, an internal thread sleeve and a butt joint piece; the fixed plate is fixedly arranged on the outer side of the oxygen-making molecular sieve body, the external thread head is fixedly arranged on the fixed plate and communicated with the outlet end of the oxygen conduit, the insertion pipe is fixedly arranged on the outer side of the external thread head, the internal thread sleeve is in threaded fit with the external thread head and communicated with the inlet end of the air guide hose, and the butt joint piece is arranged on the inner side of the internal thread sleeve and is matched with the insertion pipe.

Further, the butt joint piece comprises a clamping seat, a sealing plate, a plurality of sliding rods, a plurality of limiting blocks and a plurality of springs; the clamping seat is fixedly arranged at the inner side of the internal thread sleeve, and the insertion pipe can be inserted into the insertion pipe; the sliding rods penetrate through the clamping seat and are in sliding connection with the clamping seat, the sliding rods are distributed around the clamping seat at equal intervals, one ends of the sliding rods are fixedly connected with the sealing plate, the sealing plate can be matched with the clamping seat, the limiting blocks are fixedly installed at the other ends of the corresponding sliding rods respectively, and the springs are sleeved on the corresponding sliding rods.

Further, the oxygen concentration detection assembly comprises an air storage cylinder, a liquid oil cylinder, a communicating pipe, an oil tank, a dial and a pneumatic piece; the inlet end of the air storage cylinder is communicated with the air guide hose, and the liquid oil cylinder is fixedly arranged on the outer side of the air storage cylinder and is of a transparent structure; the scale disc is fixedly arranged on the outer side of the liquid oil cylinder, one end of the communicating pipe is communicated with the liquid oil cylinder, the other end of the communicating pipe is communicated with the oil tank, and the pneumatic part is arranged between the air storage cylinder and the liquid oil cylinder.

Further, the pneumatic element comprises a first piston, a connecting rod and a second piston; the connecting rod runs through the side wall of the air reservoir and is in sliding connection with the air reservoir, the first piston is slidably mounted on the inner side of the air reservoir and is fixedly connected with one end of the connecting rod, and the second piston is slidably mounted on the inner side of the liquid oil reservoir and is fixedly connected with the other end of the connecting rod.

Further, a baffle is fixedly arranged at one end of the inner side of the air cylinder, a vent hole is formed in the baffle, and an igniter is fixedly arranged at the top of the air cylinder.

The utility model has the following beneficial effects: during installation, through with internal thread cover and external screw thread head screw-thread fit, intubate grafting in the cassette and with the closing plate contact this moment to make closing plate and cassette break away from, this air duct that makes air hose and intubate formation intercommunication, whole structure leakproofness is strong, has promoted the leakproofness of whole air duct greatly.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a detection device for the performance of a PSA-made oxygen molecular sieve;

FIG. 2 is a schematic structural view of a seal assembly of a detection device for the performance of a PSA oxygen-producing molecular sieve;

FIG. 3 is a schematic structural view of a docking member of a detection device for the performance of a PSA oxygen-producing molecular sieve;

FIG. 4 is a schematic diagram of an oxygen concentration detection assembly of a detection apparatus for detecting the performance of a PSA-made oxygen molecular sieve;

FIG. 5 is a schematic structural view of a pneumatic member of a detection device for the performance of a PSA-made oxygen molecular sieve;

in the drawings, the list of components represented by the various numbers is as follows:

oxygen-generating molecular sieve body 1, oxygen conduit 2, sealing component 3, fixed plate 31, external screw thread head 32, cannula 33, internal screw thread sleeve 34, butt joint 35, cassette 351, sealing plate 352, slide bar 353, stopper 354, spring 355 air guide hose 4, oxygen concentration detection component 5, gas receiver 51, liquid oil cylinder 52, communicating pipe 53, oil tank 54, dial 55, pneumatic piece 56, first piston 561, connecting rod 562, second piston 563, partition 57, vent 58, igniter 59.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model relates to a detection device for PSA oxygen-making molecular sieve performance, which comprises an oxygen conduit 2, wherein one end of the oxygen conduit 2 is communicated with an oxygen outlet of an oxygen-making molecular sieve body 1, a sealing component 3 is fixedly arranged at the other end of the oxygen conduit 2, an air guide hose 4 is fixedly arranged at the outlet end of the sealing component 3, and an oxygen concentration detection component 5 is arranged at the outlet end of the air guide hose 4 to detect the oxygen concentration.

The sealing assembly 3 comprises a fixed plate 31, an external thread head 32, a cannula 33, an internal thread bush 34 and a butt joint piece 35; the fixed plate 31 is fixedly arranged on the outer side of the oxygen-making molecular sieve body 1, the external thread head 32 is fixedly arranged on the fixed plate 31 and communicated with the outlet end of the oxygen conduit 2, the insertion pipe 33 is fixedly arranged on the outer side of the external thread head 32, the internal thread sleeve 34 is in threaded fit with the external thread head 32 and communicated with the inlet end of the air guide hose 4, and the abutting part 35 is arranged on the inner side of the internal thread sleeve 34 and matched with the insertion pipe 33;

the butting piece 35 comprises a clamping seat 351, a sealing plate 352, a plurality of sliding rods 353, a plurality of limiting blocks 354 and a plurality of springs 355; the clamping seat 351 is fixedly arranged on the inner side of the internal thread sleeve 34, and the insertion tube 33 can be inserted into the insertion tube 33; the plurality of slide bars 353 all run through the cassette 351 and with cassette 351 sliding connection, a plurality of slide bars 353 are around cassette 351 equidistance distribution, the one end of a plurality of slide bars 353 all with closing plate 352 fixed connection, closing plate 352 can cooperate with cassette 351, a plurality of stopper 354 respectively fixed mounting is at the other end of corresponding slide bar 353, a plurality of spring 355 cover is established on corresponding slide bar 353.

During installation, through with internal thread cover 34 and external screw thread head 32 screw-thread fit, intubate 33 is pegged graft in cassette 351 and is contacted with closing plate 352 this moment to make closing plate 352 break away from with cassette 351, this makes air guide hose 4 and intubate 33 form the air passageway of intercommunication, and whole structure leakproofness is strong, has promoted the leakproofness of whole air passageway greatly.

As shown in fig. 4 to 5, the oxygen concentration detection assembly 5 includes an air reservoir 51, a liquid oil reservoir 52, a communication pipe 53, an oil tank 54, a dial 55, and a pneumatic member 56; the inlet end of the air cylinder 51 is communicated with the air guide hose 4, and the liquid oil cylinder 52 is fixedly arranged on the outer side of the air cylinder 51 and is of a transparent structure; the dial 55 is fixedly arranged outside the liquid oil cylinder 52, one end of the communicating pipe 53 is communicated with the liquid oil cylinder 52, the other end of the communicating pipe 53 is communicated with the oil tank 54, and the pneumatic piece 56 is arranged between the air storage cylinder 51 and the liquid oil cylinder 52;

the pneumatic element 56 includes a first piston 561, a connecting rod 562, and a second piston 563; the connecting rod 562 penetrates through the side wall of the air cylinder 51 and is in sliding connection with the air cylinder 51, the first piston 561 is slidably mounted on the inner side of the air cylinder 51 and is fixedly connected with one end of the connecting rod 562, and the second piston 563 is slidably mounted on the inner side of the liquid oil cylinder 52 and is fixedly connected with the other end of the connecting rod 562; a partition plate 57 is fixedly arranged at one end of the inner side of the air cylinder 51, a vent hole 58 is formed in the partition plate 57, and an igniter 59 is fixedly arranged at the top of the air cylinder 51.

One specific application of this embodiment is: during detection, the oxygen guide pipe 2 guides the gas at the oxygen outlet of the oxygen-making molecular sieve body 1 into the gas storage cylinder 51, so that the gas pressure in the gas storage cylinder 51 is enhanced, the first piston 561 drives the connecting rod 562 to slide into the liquid oil cylinder 52, the second piston 563 slides synchronously, the liquid oil in the liquid oil cylinder 52 is guided into the oil tank 54, and the reduction of the liquid oil in the liquid oil cylinder 52, namely the guiding amount of the gas in the gas storage cylinder 51, can be observed through the dial 55;

then the gas inside the gas storage cylinder 51 is combusted through the igniter 59, so that the oxygen inside the gas storage cylinder 51 is reduced, the pressure inside the gas storage cylinder 51 is reduced, the first piston 561 drives the connecting rod 562 to slide reversely, the liquid oil inside the liquid oil cylinder 52 is increased, and after the oxygen inside the gas storage cylinder 51 is completely combusted, whether the liquid oil of the liquid oil cylinder 52 is restored to an initial state is observed; if the molecular sieve is recovered to the initial state, the oxygen-making molecular sieve can be judged to have good performance; if the molecular sieve is not restored to the original state, it can be judged that the performance of the oxygen-producing molecular sieve is reduced.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A detection device for PSA system oxygen molecular sieve performance, its characterized in that: the oxygen concentration detection device comprises an oxygen guide pipe (2), wherein one end of the oxygen guide pipe (2) is communicated with an oxygen outlet of an oxygen-making molecular sieve body (1), a sealing assembly (3) is fixedly arranged at the other end of the oxygen guide pipe (2), an air guide hose (4) is fixedly arranged at the outlet end of the sealing assembly (3), and an oxygen concentration detection assembly (5) is arranged at the outlet end of the air guide hose (4) so as to detect the oxygen concentration.

2. The detection device for PSA oxygen-generating molecular sieve performance according to claim 1, characterized in that the sealing assembly (3) comprises a fixed plate (31), an external threaded head (32), a cannula (33), an internal threaded sleeve (34) and a docking piece (35); the utility model discloses a high-pressure oxygen-making molecular sieve, including oxygen conduit (2) and oxygen-making molecular sieve body, fixed plate (31) fixed mounting is in the outside of oxygen-making molecular sieve body (1), external screw thread head (32) fixed mounting is on fixed plate (31) and with the exit end switch-on of oxygen conduit (2), intubate (33) fixed mounting is in the outside of external screw thread head (32), internal screw thread cover (34) and external screw thread head (32) screw thread cooperation, and with the entrance point switch-on of air guide hose (4), interfacing part (35) are installed in internal screw thread cover (34) inboard, and with intubate (33) cooperation.

3. The detection device for PSA oxygen-generating molecular sieve performance according to claim 2, characterized in that the butt joint piece (35) comprises a clamping seat (351), a sealing plate (352), a plurality of sliding rods (353), a plurality of limiting blocks (354) and a plurality of springs (355); the clamping seat (351) is fixedly arranged at the inner side of the inner threaded sleeve (34), and the insertion pipe (33) can be inserted into the insertion pipe (33); a plurality of slide bars (353) all run through cassette (351), and with cassette (351) sliding connection, a plurality of slide bars (353) are around cassette (351) equidistance distribution, a plurality of slide bars (353) one end all with closing plate (352) fixed connection, closing plate (352) can cooperate with cassette (351), a plurality of stopper (354) respectively fixed mounting at the other end of corresponding slide bar (353), a plurality of spring (355) cover is established on corresponding slide bar (353).

4. A detection apparatus for PSA oxygen molecular sieve performance according to claim 3, wherein the oxygen concentration detection assembly (5) comprises an air reservoir (51), a liquid reservoir (52), a communication tube (53), an oil tank (54), a dial (55) and a pneumatic member (56); the inlet end of the air storage cylinder (51) is communicated with the air guide hose (4), and the liquid oil cylinder (52) is fixedly arranged on the outer side of the air storage cylinder (51) and is of a transparent structure; the dial (55) is fixedly arranged on the outer side of the liquid oil cylinder (52), one end of the communicating pipe (53) is communicated with the liquid oil cylinder (52), the other end of the communicating pipe (53) is communicated with the oil tank (54), and the pneumatic part (56) is arranged between the air storage cylinder (51) and the liquid oil cylinder (52).

5. The apparatus for detecting the performance of a molecular sieve for PSA oxygen production according to claim 4, wherein said pneumatic element (56) comprises a first piston (561), a connecting rod (562) and a second piston (563); the connecting rod (562) penetrates through the side wall of the air storage cylinder (51) and is in sliding connection with the air storage cylinder (51), the first piston (561) is slidably mounted on the inner side of the air storage cylinder (51) and is fixedly connected with one end of the connecting rod (562), and the second piston (563) is slidably mounted on the inner side of the liquid oil cylinder (52) and is fixedly connected with the other end of the connecting rod (562).

6. The detection device for the performance of the PSA oxygen-making molecular sieve according to claim 5, wherein a partition plate (57) is fixedly arranged at one end of the inner side of the air reservoir (51), a vent hole (58) is formed in the partition plate (57), and an igniter (59) is fixedly arranged at the top of the air reservoir (51).