Nine-tower parallel type miniature pressure swing adsorption oxygen generator

Abstract

The invention relates to the technical field of oxygen generators, in particular to a nine-tower parallel type miniature pressure swing adsorption oxygen generator, which comprises: a shell, which is provided with an adsorption cavity and a valve cavity communicated with the adsorption cavity, the top surface of the shell is provided with an air outlet hole, and the side wall of the shell is provided with an exhaust hole communicated with the adsorption cavity; the adsorption oxygen production device comprises an adsorption tower, an oxygen storage tank and a control assembly, the adsorption oxygen production mechanism comprises an adsorption tower, an oxygen storage tank and a control assembly, and the control assembly comprises a valve body, a movable valve plate, a static valve plate and a driving part. Compared with the prior art, multi-channel airflow is adopted, the service life of the oxygen generation device can be prolonged, the oxygen generator is more stable, oxygen can be continuously prepared, and interruption of the oxygen generation device is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen generators, in particular to a nine-tower parallel micro pressure swing adsorption oxygen generator. Background Art

[0002] Pressure Swing Adsorption (PSA) oxygen generator is a device that uses the physical properties of adsorbent materials to separate oxygen and nitrogen by adjusting gas pressure. Its basic working principle is based on the different adsorption capacities of different gases on adsorbents (such as molecular sieves). By periodically changing the pressure, oxygen is separated.

[0003] The air is compressed and sent to the adsorption tower. The nitrogen in the oxygen-containing air is easily adsorbed by the adsorbent (usually a molecular sieve) due to its larger molecular size, while the oxygen molecules are relatively small and not easily adsorbed, so the oxygen will flow out of the adsorption tower. When the adsorbent in the adsorption tower reaches saturation, the pressure decreases, the nitrogen is released, and the oxygen remains in the machine. By reducing the pressure, the adsorbent will release the adsorbed nitrogen and other impurities. By controlling multiple adsorption towers to work alternately, one part of the tower is adsorbed and the other part is desorbed, thereby achieving continuous oxygen supply. The oxygen production equipment in the prior art can only produce oxygen in a cycle and cannot output continuously. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the problem that the oxygen production equipment in the prior art can only produce oxygen in a cycle and cannot output continuously, a nine-tower parallel micro pressure swing adsorption oxygen production machine is provided.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a nine-tower parallel micro pressure swing adsorption oxygen generator, comprising:

[0006] The shell has an adsorption chamber and a valve chamber connected to the adsorption chamber, the top surface of the shell is provided with an air outlet, and the side wall of the shell is provided with an exhaust hole connected to the adsorption chamber;

[0007] And an adsorption oxygen-making mechanism, which is used to prepare oxygen. The adsorption oxygen-making mechanism includes an adsorption tower, an oxygen storage tank and a control component. An oxygen channel is provided on the top of a shell. The adsorption tower and the oxygen storage tank are arranged in an adsorption chamber. The adsorption tower is used to allow oxygen to pass through and adsorb nitrogen. The input end of the oxygen channel is connected to the output end of the adsorption tower, the output end of the oxygen channel is connected to the input end of the oxygen storage tank, the air outlet is connected to the oxygen storage tank, a first connecting hole connected to the input end of the adsorption tower and a first desorption hole connected to the adsorption chamber are provided on the bottom surface of the shell. The control component includes a valve body, a moving valve plate, a static valve plate and a driving member. The valve body is mounted on the bottom surface of the shell. The valve body and the shell enclose a valve chamber. An air inlet connected to the valve chamber is provided on the bottom surface of the valve body. The driving member is used to provide power for the rotation of the moving valve plate. The output of the driving member The outlet end is connected with the movable valve plate in a transmission manner, the movable valve plate and the static valve plate are arranged in the valve cavity, a connecting channel and a desorption channel are provided on the static valve plate, the connecting channel is connected with the first connecting hole, the desorption channel is connected with the first desorption hole, a connecting groove, a desorption groove and an air inlet groove are provided on the movable valve plate, a second connecting hole connected with the valve cavity is provided on the bottom surface of the air inlet groove, the desorption channel is connected with the connecting groove, the desorption groove is connected with the connecting groove through the third connecting hole, and the desorption channel is connected with the connecting groove. The adsorption oxygen making equipment of the present application adopts multi-channel airflow switching to make oxygen, and the traditional oxygen making machine mostly uses pneumatic valves and solenoid valves, which have a low service life. The present application adopts multi-channel airflow, which can extend the service life of the oxygen making device, make the oxygen making machine more stable, and can also continuously prepare oxygen to avoid interruption;

[0008] When the movable valve plate rotates, the connecting channel is connected to the desorption groove or the air intake groove.

[0009] It further comprises a connecting groove having an annular structure, and the desorption groove and the air intake groove are located inside the connecting groove.

[0010] It further comprises that both the desorption groove and the air intake groove are arc-shaped grooves, and the desorption groove and the air intake groove are located on the same circumference.

[0011] The shell further comprises an upper cover, an outer shell and a lower cover, the oxygen channel is opened inside the upper cover, the exhaust hole is arranged on the outer shell, and the first connecting hole and the first desorption hole are arranged on the lower cover.

[0012] The invention further comprises a fixing groove for fixing the adsorption tower or the oxygen storage tank, which is provided on the bottom surface of the upper cover and the top surface of the lower cover.

[0013] The invention further comprises an adsorption tower in which a molecular sieve and two diverter plates are installed, and the two diverter plates clamp the molecular sieve.

[0014] It further includes two desorption grooves spaced apart along the radial direction and forming a desorption groove group, the two desorption grooves spaced apart along the radial direction are connected by a through hole, the desorption groove group has two groups spaced apart along the circumferential direction, the air inlet grooves are spaced apart along the radial direction and form an air inlet groove group, the air inlet groove group and the desorption groove group are arranged alternately.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a nine-tower parallel micro pressure swing adsorption oxygen generator. The adsorption oxygen generator of the present application adopts multi-channel airflow switching to produce oxygen. Traditional oxygen generators mostly use pneumatic valves and solenoid valves, which have a low service life. The present application adopts multi-channel airflow, which can extend the service life of the oxygen generator, making the oxygen generator more stable, and can also continuously prepare oxygen to avoid interruptions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a bottom-up structural schematic diagram of the present invention;

[0019] Figure 3 The present invention Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention without a housing;

[0021] Figure 5 The present invention Figure 4 Schematic diagram of the cross-section structure;

[0022] Figure 6 It is a front view structural schematic diagram of the upper cover of the present invention;

[0023] Figure 7 The present invention Figure 6 Schematic diagram of the cross-sectional structure at the middle BB;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the upper cover of the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the lower cover of the present invention;

[0026] Fig.10 is a schematic diagram of the three-dimensional structure of the lower cover of the present invention from another viewing angle;

[0027] Fig.11 is a schematic diagram of the top view of the lower cover of the present invention;

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the static valve plate of the present invention;

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the static valve plate of the present invention from another perspective;

[0030] Fig.14 It is a schematic diagram of the top view of the static valve plate of the present invention;

[0031] Fig.15 It is a three-dimensional structural schematic diagram of the movable valve plate of the present invention;

[0032] Fig.16 It is a three-dimensional structural schematic diagram of the movable valve plate of the present invention from another perspective;

[0033] Fig.17 It is a schematic diagram of the top view of the structure of the lower cover, the static valve plate and the dynamic valve plate after being assembled (in a perspective state) according to the present invention.

[0034] In the figure: 1, shell, 11, adsorption chamber, 12, air outlet, 13, exhaust hole, 14, oxygen channel, 15, first connecting hole, 16, first desorption hole, 17, upper cover, 18, outer shell, 19, lower cover;

[0035] 2. Adsorption oxygen production mechanism, 21. Adsorption tower, 211. Molecular sieve, 212. Diverter plate, 22. Oxygen storage tank, 23. Control component, 231. Valve body, 2311. Air inlet hole, 232. Moving valve plate, 2321. Connecting groove, 2322. Desorption groove, 2323. Air inlet groove, 2324. Second connecting hole, 2325. Third connecting hole, 233. Static valve plate, 2331. Connecting channel, 2332. Desorption channel, 234. Driving member, 235. Valve chamber. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] like Figure 1 It is a structural schematic diagram of the present invention, a nine-tower parallel micro pressure swing adsorption oxygen generator, comprising:

[0038] like Figure 1 , 2 As shown, the shell 1 has an adsorption chamber 11, an air outlet 12 is provided on the top surface of the shell 1, and an air outlet 13 connected to the adsorption chamber 11 is provided on the side wall of the shell 1;

[0039] And an adsorption oxygen production mechanism 2, which is used to prepare oxygen, the adsorption oxygen production mechanism 2 includes an adsorption tower 21, an oxygen storage tank 22 and a control component 23, an oxygen channel 14 is opened on the top of the shell 1, and the shell 1 includes an upper cover 17, an outer shell 18 and a lower cover 19, such as Figure 6 , 7 As shown in FIG. 8 , the oxygen channel 14 is opened inside the upper cover 17, and the exhaust hole 13 is arranged on the outer shell 18. Fig. 9 , 10 As shown in FIG. 11 , the first connection holes 15 and the first desorption holes 16 are arranged on the lower cover 19. The outer shell 18 is a noise reduction outer shell with a thickness of 0.5 mm, and the outer shell 18 has four exhaust holes 13. The lower cover 19 has eight first connection holes 15 and four first desorption holes 16.

[0040] The bottom surface of the upper cover 17 and the top surface of the lower cover 19 are provided with fixing grooves for fixing the adsorption tower 21 or the oxygen storage tank 22. The ends of the adsorption tower 21 or the oxygen storage tank 22 are embedded in the corresponding fixing grooves, and a sealing gasket is arranged in the fixing groove. In this embodiment: eight adsorption towers 21 are arranged, and one oxygen storage tank 22 is arranged, and the eight adsorption towers 21 are distributed in a square, and the eight adsorption towers 21 are arranged around the oxygen storage tank 22. The adsorption tower 21 and the oxygen storage tank 22 form a nine-tower parallel type. Such a design makes the equipment easy to install, reduces the parts of the entire equipment, and makes the equipment more integrated.

[0041] The adsorption tower 21 and the oxygen storage tank 22 are arranged in the adsorption chamber 11. The adsorption tower 21 is used to allow oxygen to pass through and adsorb nitrogen. The input end of the oxygen channel 14 is connected to the output end of the adsorption tower 21, the output end of the oxygen channel 14 is connected to the input end of the oxygen storage tank 22, the air outlet 12 is connected to the oxygen storage tank 22, and the bottom surface of the shell 1 is provided with a first connecting hole 15 connected to the input end of the adsorption tower 21 and a first desorption hole 16 connected to the adsorption chamber 11.

[0042] like Figure 3 As shown, the adsorption tower 21 is equipped with a molecular sieve 211 and two diverter plates 212, and the two diverter plates 212 clamp the molecular sieve 211, which has a diameter of about 0.5 mm.

[0043] The control component 23 includes a valve body 231, a movable valve plate 232, a static valve plate 233 and a driving member 234. The valve body 231 is installed on the bottom surface of the shell 1. The valve body 231 and the shell 1 enclose a valve cavity 235. The bottom surface of the valve body 231 is provided with an air inlet hole 2311 connected to the valve cavity 235. The driving member 234 is used to provide power for the rotation of the movable valve plate 232, and to switch the air inlet groove 2323 and the desorption groove 2322 to connect the connecting channel 2331. The output end of the driving member 234 is connected to the movable valve plate 232 in a transmission connection. The movable valve plate 232 and the static valve plate 233 are arranged in the valve cavity 235. The driving member 234 can be a motor or a gear rack transmission mechanism. The adsorption oxygen production equipment of the present application adopts multi-channel airflow switching to produce oxygen. Traditional oxygen generators mostly use pneumatic valves and solenoid valves, which have a short service life. The present application adopts multi-channel airflow, which can extend the service life of the oxygen production device, making the oxygen generator more stable, and can also continuously produce oxygen to avoid interruption.

[0044] like Fig.12 , 13 As shown in FIG. 14 , a connecting channel 2331 and a desorption channel 2332 are provided on the static valve plate 233. The connecting channel 2331 is connected to the first connecting hole 15, and the desorption channel 2332 is connected to the first desorption hole 16. In this embodiment: eight connecting channels 2331 and four desorption channels 2332 are provided on the static valve plate 233. The connecting channels 2331 and the air inlet grooves 2323 are arranged correspondingly, and a sealing gasket is arranged between the static valve plate 233 and the upper cover 17.

[0045] like Fig.15 , 16 As shown in FIG. 2 , a connecting groove 2321, a desorption groove 2322 and an air inlet groove 2323 are provided on the movable valve plate 232. A second connecting hole 2324 communicating with the valve cavity 235 is provided on the bottom surface of the air inlet groove 2323. The desorption channel 2332 is communicated with the connecting groove 2321. The desorption groove 2322 is communicated with the connecting groove 2321 through the third connecting hole 2325. The desorption channel 2332 is communicated with the connecting groove 2321.

[0046] When the movable valve plate 232 rotates, the connecting channel 2331 is connected to the desorption groove 2322 or the air intake groove 2323 .

[0047] A compression spring is provided at the opposite end of the movable valve plate 232 in the valve cavity 235 .

[0048] The connecting groove 2321 is annular in structure, and the desorption groove 2322 and the air intake groove 2323 are located inside the connecting groove 2321 .

[0049] The desorption groove 2322 and the air inlet groove 2323 are both arc-shaped grooves, and the desorption groove 2322 and the air inlet groove 2323 are located on the same circumference, that is, there is at least one air inlet groove 2323 on the circumference with the desorption groove 2322, that is, there is at least one desorption groove 2322 on the circumference with the air inlet groove 2323.

[0050] In this embodiment, two desorption grooves 2322 are distributed at intervals along the radial direction and constitute a desorption groove group, and the two desorption grooves 2322 are distributed at intervals along the radial direction and are connected through a through hole, and the desorption groove group is distributed at intervals along the circumferential direction. Two air inlet grooves 2323 are distributed at intervals along the radial direction and constitute an air inlet groove group, and the air inlet groove group is distributed at intervals along the circumferential direction. The air inlet groove group and the desorption groove group are arranged alternately. That is, there are four desorption grooves 2322 and four air inlet grooves 2323 on the movable valve plate, and the air inlet grooves 2323 and the desorption grooves 2322 are arranged concentrically.

[0051] The working principle of a nine-tower parallel micro pressure swing adsorption oxygen generator is as follows: air is sent into the valve cavity 235 from the air inlet hole 2311 through the compressor (nitrogen can be adsorbed in the pressurized state), and enters the air inlet groove 2323 through the second connecting hole 2324 of the movable valve plate 232. The driving member 234 is started to drive the movable valve plate 232 to rotate, so that the desorption groove 2322 and the air inlet groove 2323 are switched to connect to the connecting channel 2331;

[0052] When the air inlet groove 2323 is connected to the first connecting hole 15 through the connecting channel 2331, the air is sent into the adsorption tower 21 through the first connecting holes 15 on the lower cover 19 for adsorption, and the oxygen obtained after adsorption is collected into the oxygen storage tank 22 through the oxygen channel of the upper cover 17.

[0053] When the desorption tank 2322 is connected through the connecting channel 2331, the third connecting hole 2325, the connecting tank 2321, the desorption channel 2332 and the first desorption hole 16, the desorption tank 2322 is connected to the adsorption tower 21 after adsorption (the pressure is reduced at this time so that the nitrogen is precipitated), the adsorbed nitrogen is desorbed from the molecular sieve 211 and enters the desorption tank 2322, and the nitrogen enters the connecting tank 2321 through the third connecting hole 2325 in the desorption tank 2322, and then passes through the desorption channel 2332 on the static valve plate 233 and the first desorption hole of the lower cover, and is discharged into the adsorption chamber 11 between the noise reduction shell 18 and the adsorption tower 21, and then escapes into the atmosphere through the exhaust hole 13 on the noise reduction shell 18, and the obtained oxygen is stored in the oxygen storage tank 22, or discharged through the exhaust hole 12 of the upper cover.

[0054] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A nine-tower parallel micro pressure swing adsorption oxygen generator, characterized in that: include: A shell (1) having an adsorption chamber (11), a top surface of the shell (1) being provided with an air outlet (12), and a side wall of the shell (1) being provided with an air outlet (13) communicating with the adsorption chamber (11); and an adsorption oxygen production mechanism (2) for preparing oxygen, the adsorption oxygen production mechanism (2) comprising an adsorption tower (21), an oxygen storage tank (22) and a control component (23), the top of the shell (1) being provided with an oxygen channel (14), the adsorption tower (21) and the oxygen storage tank (22) being arranged in an adsorption chamber (11), the adsorption tower (21) being used for allowing oxygen to pass through and adsorbing nitrogen, the input end of the oxygen channel (14) being connected to the output end of the adsorption tower (21), the output end of the oxygen channel (14) being connected to the input end of the oxygen storage tank (22) The air outlet (12) is connected to the oxygen storage tank (22); the bottom surface of the shell (1) is provided with a first connection hole (15) connected to the input end of the adsorption tower (21) and a first desorption hole (16) connected to the adsorption chamber (11); the control component (23) comprises a valve body (231), a movable valve plate (232), a static valve plate (233) and a driving member (234); the valve body (231) is mounted on the bottom surface of the shell (1); the valve body (231) and the shell (1) are enclosed to form a valve chamber (235); the valve body (231) The bottom surface is provided with an air inlet hole (2311) connected to the valve cavity (235); the driving member (234) is used to provide power for the rotation of the movable valve plate (232); the output end of the driving member (234) is transmission-connected to the movable valve plate (232); the movable valve plate (232) and the static valve plate (233) are arranged in the valve cavity (235); the static valve plate (233) is provided with a connecting channel (2331) and a desorption channel (2332); the connecting channel (2331) is connected to the first connecting hole (15); the desorption channel (2332) is connected to the first connecting hole (15); the desorption ... 2) is connected to the first desorption hole (16), the movable valve plate (232) is provided with a connecting groove (2321), a desorption groove (2322) and an air inlet groove (2323), the bottom surface of the air inlet groove (2323) is provided with a second connecting hole (2324) connected to the valve cavity (235), the desorption channel (2332) is connected to the connecting groove (2321), the desorption groove (2322) is connected to the connecting groove (2321) through a third connecting hole (2325), and the desorption channel (2332) is connected to the connecting groove (2321); When the movable valve plate (232) rotates, the connecting channel (2331) is connected to the desorption groove (2322) or the air intake groove (2323).

2. A nine-tower parallel micro pressure swing adsorption oxygen generator as claimed in claim 1, characterized in that: The connecting channel has an annular structure, and the desorption groove (2322) and the air intake groove (2323) are located inside the connecting groove (2321).

3. A nine-tower parallel micro pressure swing adsorption oxygen generator as claimed in claim 1, characterized in that: The desorption groove (2322) and the air intake groove (2323) are both arc-shaped grooves, and the desorption groove (2322) and the air intake groove (2323) are located on the same circumference.

4. A nine-tower parallel micro pressure swing adsorption oxygen generator as claimed in claim 1, characterized in that: The housing (1) comprises an upper cover (17), an outer shell (18) and a lower cover (19); the oxygen passage (14) is opened inside the upper cover (17); the exhaust hole (13) is arranged on the outer shell (18); and the first connecting hole (15) and the first desorption hole (16) are arranged on the lower cover (19).

5. The nine-tower parallel micro pressure swing adsorption oxygen generator according to claim 1, characterized in that: The bottom surface of the upper cover (17) and the top surface of the lower cover (19) are provided with fixing grooves for fixing the adsorption tower (21) or the oxygen storage tank (22).

6. The nine-tower parallel micro pressure swing adsorption oxygen generator according to claim 1, characterized in that: The adsorption tower (21) is equipped with a molecular sieve (211) and two diverter plates (212), and the two diverter plates (212) clamp the molecular sieve (211).

7. The nine-tower parallel micro pressure swing adsorption oxygen generator according to claim 1, characterized in that: The desorption grooves (2322) are distributed with two intervals in the radial direction and constitute a desorption groove group. The two desorption grooves (2322) are distributed with two intervals in the radial direction and are connected by a through hole. The desorption groove group is distributed with two groups in the circumferential direction. The air inlet grooves (2323) are distributed with two intervals in the radial direction and constitute an air inlet groove group. The air inlet groove group and the desorption groove group are arranged alternately.

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