Oxygen generation module and oxygen generator

Abstract

The utility model relates to the technical field of oxygen generators, in particular to an oxygen generation module and an oxygen generator. The oxygen generation module comprises a first molecular sieve barrel, a second molecular sieve barrel, a mounting seat and an oxygen interface; a first air inlet and a first air outlet are respectively formed in two ends of the first molecular sieve barrel; the second molecular sieve barrel is opposite to the first molecular sieve barrel; a second air inlet and a second air outlet are respectively formed in two ends of the second molecular sieve barrel; the first molecular sieve barrel and the second molecular sieve barrel are both arranged on the mounting seat, a first through hole, a first air pipe and a second through hole which are sequentially communicated are formed in the mounting seat, the first air outlet is communicated with the first through hole, and the second air outlet is communicated with the second through hole; the oxygen connector is arranged between the first molecular sieve barrel and the second molecular sieve barrel and communicated with the first air pipe. The integration level and the setting stability of the oxygen generation module and the oxygen generator are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen generators, in particular to an oxygen generator module and an oxygen generator. Background Art

[0002] When the oxygen generator is working, the compressor is used to transport compressed air to the molecular sieve, and high-concentration oxygen is output after passing through the molecular sieve barrel. In actual application, the oxygen generator often consists of two molecular sieves working in cooperation with each other to achieve continuous oxygen production. The two molecular sieve barrels are currently set independently of each other. Users use oxygen by connecting two air pipes to the oxygen outlets of the two molecular sieve barrels respectively. This setting structure leads to poor integration and setting stability of the oxygen generator. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present utility model is to provide an oxygen production module and an oxygen production machine to solve the problems of poor integration and setting stability of oxygen production machines in the prior art.

[0004] The utility model discloses an oxygen production module, comprising: a first molecular sieve barrel, a second molecular sieve barrel, a mounting seat and an oxygen interface, wherein a first air inlet and a first air outlet are respectively formed at two ends of the first molecular sieve barrel; the second molecular sieve barrel is arranged opposite to the first molecular sieve barrel, and a second air inlet and a second air outlet are respectively formed at two ends of the second molecular sieve barrel; the mounting seat: the first molecular sieve barrel and the second molecular sieve barrel are both arranged on the mounting seat, and a first through hole, a first air pipe and a second through hole that are connected in sequence are formed on the mounting seat, the first air outlet is connected to the first through hole, and the second air outlet is connected to the second through hole; the oxygen interface is arranged between the first molecular sieve barrel and the second molecular sieve barrel, and is connected to the first air pipe.

[0005] Optionally, the oxygen production module further includes an oxygen storage tank, the oxygen storage tank is located between the first molecular sieve barrel and the second molecular sieve barrel, and the oxygen interface is provided on the oxygen storage tank.

[0006] Optionally, a first annular boss, a second annular boss and a third annular boss are provided on the mounting seat, the first annular boss is connected to the first through hole, the second annular boss is connected to the first air pipe, and the third annular boss is connected to the second through hole; the first molecular sieve barrel is arranged on the first annular boss, the oxygen storage tank is arranged on the second annular boss, and the second molecular sieve barrel is arranged on the third annular boss.

[0007] Optionally, the first annular boss and the inner wall of the first molecular sieve barrel, the second annular boss and the inner wall of the oxygen storage tank, and the third annular boss and the inner wall of the second molecular sieve barrel are all interference fit.

[0008] Optionally, a third through hole is formed on the mounting seat, wherein the third through hole is located in the second annular boss and is connected to the first air pipe; a valve is provided on the mounting seat, wherein the valve is provided in the oxygen storage tank and is located on the third through hole, and the valve is used to control the opening and closing of the third through hole.

[0009] Optionally, the valve comprises a body and a valve plate, one end of the body forms a receiving cavity with an opening, the other end forms a fourth through hole, a plurality of notches are formed in the receiving cavity, and the notches communicate with the receiving cavity and the fourth through hole;

[0010] A fourth annular seat is further provided in the second annular protrusion, the body is provided on the fourth annular seat through the opening, the valve sheet is movably provided in the accommodating cavity, and the valve sheet can be attached to the third through hole or the plurality of the notches.

[0011] Optionally, a first flow limiting valve is provided at one end of the first air pipe close to the first through hole, and a second flow limiting valve is provided at one end of the first air pipe close to the second through hole, and the valve is located between the first flow limiting valve and the second flow limiting valve.

[0012] Optionally, a first mounting platform is formed on the outer periphery of the first molecular sieve barrel, the second molecular sieve barrel and the oxygen storage tank, a first threaded hole is formed on the first mounting platform, a corresponding second threaded hole is formed on the mounting seat, and the first threaded hole and the second threaded hole are connected by a screw.

[0013] Optionally, the oxygen production module also includes: an air intake pipe, a connecting piece and a control component, the connecting piece is formed with a third air duct and a fourth air duct, and the air intake pipe is arranged on the connecting piece; the first air inlet is communicated with the third air duct, and the second air inlet is communicated with the fourth air duct; the control component is arranged on the connecting piece and communicated with the air intake pipe, the third air duct and the fourth air duct, and the control component is used to control the gas in the air intake pipe to enter the first molecular sieve barrel through the third air duct, or, the control component is used to control the gas in the air intake pipe to enter the second molecular sieve barrel through the fourth air duct.

[0014] The utility model also discloses an oxygen generator, comprising the oxygen generating module.

[0015] Compared with the prior art, the oxygen production module and oxygen concentrator provided by the embodiment of the utility model have the beneficial effect that: in the oxygen production module and the oxygen concentrator, the setting of the mounting seat provides support and installation environment for the first molecular sieve barrel and the second molecular sieve barrel on the one hand, and improves the setting stability of the first molecular sieve barrel and the second molecular sieve barrel; on the other hand, the mounting seat forms a first through hole, a first air pipe and a second through hole which are connected in sequence, the oxygen outlet of the first molecular sieve barrel is connected to the first through hole, the oxygen at the oxygen outlet of the first molecular sieve barrel is transported to the oxygen interface through the first air pipe, the oxygen outlet of the second molecular sieve barrel is connected to the second through hole, and the oxygen at the oxygen outlet of the second molecular sieve barrel is transported to the oxygen interface through the first air pipe, the setting of the first molecular sieve barrel and the second molecular sieve barrel and the oxygen interface can make the first air outlet and the second air outlet connected to the oxygen interface through the first air pipe, and this setting greatly improves the integration of the oxygen production module and reduces the complexity of the oxygen production module and the oxygen concentrator. Therefore, this embodiment simultaneously improves the integration and setting stability of the oxygen production module and the oxygen concentrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 This is a cross-sectional view of the overall structure of the oxygen production assembly provided by the embodiment of the utility model;

[0018] Figure 2 is a top view of a mounting base provided by an embodiment of the utility model;

[0019] Figure 3 is a side view of a mounting base provided by an embodiment of the utility model;

[0020] Figure 4 is a cross-sectional view of a mounting base provided by an embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the main body provided by the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the first molecular sieve barrel and the second molecular sieve barrel provided in an embodiment of the utility model;

[0023] Figure 7 It is a structural schematic diagram of an oxygen storage tank provided by an embodiment of the utility model;

[0024] Figure 8 It is a structural schematic diagram of a control component provided by an embodiment of the utility model;

[0025] Fig. 9 is a cross-sectional view of a control assembly provided by an embodiment of the utility model;

[0026] Fig.10 It is a cross-sectional view of a connecting piece provided by an embodiment of the utility model.

[0027] The reference numerals in the figures are:

[0028] 10. First molecular sieve barrel; 101. First air inlet; 102. First air outlet; 20. Second molecular sieve barrel; 201. Second air inlet; 202. Second air outlet; 30. Mounting seat; 301. First through hole; 302. First air pipe; 303. Second through hole; 304. Third through hole; 305. Second threaded hole; 310. First annular convex seat; 320. Second annular convex seat; 321. Fourth annular seat; 330. Third annular convex seat; 340. Valve; 341. Body; 3401. Opening; 3411. Notch; 3402. Fourth through hole; 342. Valve plate; 350. First flow limiting valve; 360, second flow limiting valve; 40, oxygen interface; 50, oxygen storage tank; 510, valve body; 520, first valve core; 530, second valve core; 501, first air port; 502, second air port; 503, third air port; 504, fourth air port; 505, fifth air port; 506, sixth air port; 60, air inlet pipe; 70, connector; 701, third air channel; 702, fourth air channel; 7011, first air hole; 7012, second air hole; 7021, third air hole; 7022, fourth air hole; 80, nitrogen outlet pipe; 90, first mounting platform; 901, first threaded hole; DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0030] The utility model embodiment provides an oxygen production component, such as Figure 1 , Figure 2 and Figure 4 As shown, it includes a first molecular sieve barrel 10, a second molecular sieve barrel 20, a mounting seat 30 and an oxygen interface 40, a first air inlet 101 and a first air outlet 102 are respectively formed at both ends of the first molecular sieve barrel 10, the second molecular sieve barrel 20 is arranged opposite to the first molecular sieve barrel 10, and a second air inlet 201 and a second air outlet 202 are respectively formed at both ends of the second molecular sieve barrel 20; the first molecular sieve barrel 10 and the second molecular sieve barrel 20 are both arranged on the mounting seat 30, and a first through hole 301, a first air pipe 302 and a second through hole 303 that are connected in sequence are formed on the mounting seat 30, the first air outlet 102 is connected to the first through hole 301, and the second air outlet 202 is connected to the second through hole 303; the oxygen interface 40 is arranged between the first molecular sieve barrel 10 and the second molecular sieve barrel 20, and is connected to the first air pipe 302.

[0031] In the oxygen production module of the present embodiment, the setting of the mounting seat 30, on the one hand, provides support and installation environment for the first molecular sieve barrel 10 and the second molecular sieve barrel 20, thereby improving the setting stability of the first molecular sieve barrel 10 and the second molecular sieve barrel 20; on the other hand, the first through hole 301, the first air pipe 302 and the second through hole 303 formed on the mounting seat 30 are connected in sequence, the first air outlet 102 is connected to the first through hole 301, and the oxygen of the first air outlet 102 is transported to the oxygen interface 40 through the first air pipe 302, the second air outlet 202 is connected to the second through hole 303, and the oxygen of the second air outlet 202 is transported to the oxygen interface 40 through the first air pipe 302. The setting of the first molecular sieve barrel 10, the second molecular sieve barrel 20 and the oxygen interface 40 can enable the first air outlet 102 and the second air outlet 202 to be connected to the oxygen interface 40 through the first air pipe 302. This setting greatly improves the integration of the oxygen production module and reduces the complexity of the oxygen production module. Therefore, this embodiment improves the integration and stability of the oxygen production module at the same time.

[0032] The first molecular sieve barrel 10 is provided with a first air inlet 101 and a first air outlet 102 at both ends, and the second molecular sieve barrel 20 is provided with a second air inlet 201 and a second air outlet 202 at both ends. The first air inlet 101 is used to connect with a compressor to input compressed air into the first molecular sieve barrel 10, and the compressed air is used to separate oxygen molecules and nitrogen molecules in the first molecular sieve barrel 10. The first air outlet 102 is the oxygen outlet of the first molecular sieve barrel 10, and oxygen is output from the first air outlet 102. The second air inlet 201 is used to connect with a compressor to input compressed air into the second molecular sieve barrel 20, and the compressed air is used to separate oxygen molecules and nitrogen molecules in the second molecular sieve barrel 20. The second air outlet 202 is the oxygen outlet of the second molecular sieve barrel 20, and oxygen is output from the second air outlet 202.

[0033] The oxygen production module uses the existing means to obtain high-purity oxygen through the first molecular sieve barrel 10 and the second molecular sieve barrel 20, which will not be described in detail here.

[0034] As a preferred solution of this embodiment, Figure 1 As shown, the oxygen production module further includes an oxygen storage tank 50 , which is located between the first molecular sieve barrel 10 and the second molecular sieve barrel 20 , and the oxygen interface 40 is disposed on the oxygen storage tank 50 .

[0035] The oxygen storage tank 50 can be used to store oxygen from the first air outlet 102 and the second air outlet 202 for use by users at any time. The oxygen storage tank 50 is located between the first molecular sieve barrel 10 and the second molecular sieve barrel 20 to improve the integration of the oxygen production component and reduce the occupied space.

[0036] As a preferred solution of this embodiment, Figure 2 and Figure 3 As shown, a first annular boss 310, a second annular boss 320 and a third annular boss 330 are provided on the mounting seat 30, the first annular boss 310 is connected to the first through hole 301, the second annular boss 320 is connected to the first air pipe 302, and the third annular boss 330 is connected to the second through hole 303; the first molecular sieve barrel 10 is arranged on the first annular boss 310, the oxygen storage tank 50 is arranged on the second annular boss 320, and the second molecular sieve barrel 20 is arranged on the third annular boss 330.

[0037] Among them, the setting of the first annular protrusion 310 can cooperate with the inner wall of the first molecular sieve barrel 10, so that the first molecular sieve barrel 10 is stably set on the mounting seat 30 through the first annular protrusion 310, and the connection strength between the first molecular sieve barrel 10 and the mounting seat 30 is improved. Similarly, the setting of the second annular protrusion 320 can cooperate with the inner wall of the oxygen storage tank 50, so that the oxygen storage tank 50 is stably set on the mounting seat 30 through the second annular protrusion 320, and the connection strength between the oxygen storage tank 50 and the mounting seat 30 is improved. Similarly, the setting of the third annular protrusion 330 can cooperate with the inner wall of the second molecular sieve barrel 20, so that the second molecular sieve barrel 20 is stably set on the mounting seat 30 through the third annular protrusion 330, and the connection strength between the second molecular sieve barrel 20 and the mounting seat 30 is improved, thereby improving the setting stability of the oxygen production module of this embodiment.

[0038] As a preferred solution of this embodiment, the first annular boss 310 and the inner wall of the first molecular sieve barrel 10, the second annular boss 320 and the inner wall of the oxygen storage tank 50, and the third annular boss 330 and the inner wall of the second molecular sieve barrel 20 are all interference fit.

[0039] Among them, interference fit is a mechanical installation technology with the characteristics of simple structure, good centering, high bearing capacity and good impact resistance. Interference fit uses the elasticity of the material to enlarge or deform the inner wall of the first molecular sieve barrel 10, the inner wall of the oxygen storage tank 50 and the inner wall of the second molecular sieve barrel 20, so as to be sleeved on the corresponding position of the mounting seat 30. When the inner wall of the first molecular sieve barrel 10, the inner wall of the oxygen storage tank 50 and the inner wall of the second molecular sieve barrel 20 are restored, a tightening force will be generated on the corresponding position of the mounting seat 30, thereby achieving a close connection between the two. The connection strength between the first molecular sieve barrel 10, the oxygen storage tank 50 and the second molecular sieve barrel 20 and the mounting seat 30 is further improved. The overall stability of the oxygen production module of this embodiment is improved.

[0040] As a preferred solution of this embodiment, Figure 2 and Figure 4As shown, a third through hole 304 is formed on the mounting seat 30, and the third through hole 304 is located in the second annular boss 320 and is connected to the first air pipe 302. A valve 340 is provided on the mounting seat 30, and the valve 340 is provided in the oxygen storage tank 50, and the valve 340 is located on the third through hole 304. The valve 340 is used to control the opening and closing of the third through hole 304.

[0041] Among them, the third through hole 304 is used to connect the oxygen storage tank 50 and the first air pipe 302. Oxygen enters the oxygen storage tank 50 through the third through hole 304. The valve 340 can control the opening and closing of the third through hole 304. When the user breathes oxygen, the oxygen inhalation tube (not shown in the figure) is connected to the oxygen interface 40, and the corresponding valve 340 will open. After oxygen enters the oxygen storage tank 50 through the third through hole 304, it is delivered to the user end through the oxygen interface 40. The valve 340 is located in the oxygen storage tank 50 to improve the integration of the oxygen production component. The opening and closing of the above-mentioned valve 340 can be realized by using existing control elements, which is not specifically limited here.

[0042] As a preferred solution of this embodiment, refer to Figure 4 and 5 The valve 340 includes a body 341 and a valve disc 342. A accommodating cavity with an opening 3401 is formed at one end of the body 341, and a fourth through hole 3402 is formed at the other end. A plurality of notches 3411 are formed in the accommodating cavity, and the notches 3411 connect the accommodating cavity and the fourth through hole 3402. A fourth annular seat 321 is also provided in the second annular boss 320. The body 341 is provided on the fourth annular seat 321 through the opening 3401. The valve disc 342 is movably provided in the accommodating cavity, and the valve disc 342 can be attached to the third through hole 304 or the plurality of notches 3411.

[0043] In this embodiment, the specific structure and arrangement of the valve 340 are given. The specific process of the oxygen output from the first molecular sieve barrel 10 or the second molecular sieve barrel 20 entering the oxygen storage tank 50 through the third through hole 304 is as follows: the oxygen airflow pushes the valve plate 342 to move in the accommodating cavity so that the third through hole 304 is fully opened, and the airflow enters the accommodating cavity and passes through the notch 3411 and the fourth through hole 3402 in sequence, and then enters the oxygen storage tank 50, and stores the oxygen. In the actual working process, the first molecular sieve barrel 10 and the second There will be a short interval between the molecular sieve barrels 20 during the alternating oxygen production process. During this time, neither the first molecular sieve barrel 10 nor the second molecular sieve barrel 20 outputs oxygen, and the oxygen in the oxygen storage tank 50 will push the valve plate 342 to adhere to the third through hole 304 to block the third through hole 304, thereby preventing the oxygen in the oxygen storage tank 50 from being diverted. Therefore, the valve 340 of this embodiment realizes the function of unidirectional conduction, thereby preventing oxygen from flowing back into the first molecular sieve barrel 10 or the second molecular sieve barrel 20, thereby improving the smoothness of the operation of the oxygen production component.

[0044] In this embodiment, the arrangement of the notch 3411 is not specifically limited. Figure 5 , it is given that the notches 3411 are provided with 6 instances and are evenly distributed in the fourth through hole 3402 along the circumferential direction, thereby improving the stability of gas flow.

[0045] As a preferred solution of this embodiment, Figure 4 As shown, a first flow limiting valve 350 is provided at one end of the first air pipe 302 close to the first through hole 301 , a second flow limiting valve 360 ​​is provided at one end of the first air pipe 302 close to the second through hole 303 , and the valve 340 is located between the first flow limiting valve 350 and the second flow limiting valve 360 ​​.

[0046] Among them, the nitrogen generated by the first molecular sieve barrel 10 during operation needs to be discharged from the first air inlet 101, and the nitrogen generated by the second molecular sieve barrel 20 during operation needs to be discharged from the second air inlet 201. During operation, the first molecular sieve barrel 10 and the second molecular sieve barrel 20 work alternately to produce oxygen. When the first molecular sieve barrel 10 works to produce oxygen, the second molecular sieve barrel 20 stops working, and the second air inlet 201 is used to discharge the nitrogen in the second molecular sieve barrel 20. When the oxygen at the oxygen outlet of the first molecular sieve barrel 10 enters the oxygen storage tank 50, a small amount of oxygen enters the second molecular sieve barrel 20 through the second limiting valve 360, thereby accelerating the discharge rate of nitrogen in the second molecular sieve barrel 20. Similarly, when the second molecular sieve barrel 20 is working to produce oxygen, the first molecular sieve barrel 10 stops working, and the first air inlet 101 is used to discharge the nitrogen in the first molecular sieve barrel 10. When the oxygen at the oxygen outlet of the second molecular sieve barrel 20 enters the oxygen storage tank 50, a small amount of oxygen enters the first molecular sieve barrel 10 through the first limiting valve 350, thereby accelerating the discharge rate of nitrogen in the second molecular sieve barrel 20. The first limiting valve 350 and the second limiting valve 360 ​​of this embodiment can improve the nitrogen discharge efficiency of the first molecular sieve barrel 10 and the second molecular sieve barrel 20, thereby improving work efficiency. The amount of oxygen entering the first molecular sieve barrel 10 and the second molecular sieve barrel 20 is controlled by adjusting the opening of the valve core of the first limiting valve 350 and the second limiting valve 360. The opening of the valve core is not specifically limited and is adjusted according to actual conditions.

[0047] As a preferred solution of this embodiment, Figure 2 , Figure 6 and Figure 7 As shown, a first mounting platform 90 is also formed on the outer periphery of the first molecular sieve barrel 10, the second molecular sieve barrel 20 and the oxygen storage tank 50, a first threaded hole 901 is formed on the first mounting platform 90, and a corresponding second threaded hole 305 is formed on the mounting seat 30, and the first threaded hole 901 and the second threaded hole 305 are connected by a screw (not shown in the figure).

[0048] The first mounting platform 90 is used to further strengthen the connection strength of the first molecular sieve barrel 10, the second molecular sieve barrel 20 and the oxygen storage tank 50 on the mounting base 30, and improve the overall connection stability of the oxygen production assembly. There are multiple first mounting platforms 90, which can be evenly distributed on the periphery of the first molecular sieve barrel 10, the second molecular sieve barrel 20 and the oxygen storage tank 50. Figure 6 and Figure 7 Correspondingly, an example is given in which three first mounting platforms 90 are respectively provided on the periphery of the first molecular sieve barrel 10 and the second molecular sieve barrel 20 , and an example in which four first mounting platforms 90 are provided on the periphery of the oxygen storage tank 50 .

[0049] As a preferred solution of this embodiment, the oxygen production module also includes: Figures 8 to 10 As shown, an air intake pipe 60, a connecting piece 70 and a control component, a third air channel 701 and a fourth air channel 702 are formed on the connecting piece 70, and the air intake pipe 60 is arranged on the connecting piece 70; the first air inlet 101 is connected to the third air channel 701, and the second air inlet 201 is connected to the fourth air channel 702; the control component is arranged on the connecting piece 70 and is connected to the air intake pipe 60, the third air channel 701 and the fourth air channel 702, and the control component is used to control the gas in the air intake pipe 60 to enter the first molecular sieve barrel 10 through the third air channel 701, or, the control component is used to control the gas in the air intake pipe 60 to enter the second molecular sieve barrel 20 through the fourth air channel 702.

[0050] The compressed air is connected to the air inlet pipe 60, and under the action of the control component, the compressed air enters the first molecular sieve barrel 10 through the third air channel 701, or the compressed air enters the second molecular sieve barrel 20 through the fourth air channel 702; the above arrangement simplifies the connection relationship between the compressor (not shown in the figure) and the first molecular sieve barrel 10 and the second molecular sieve barrel 20, and further improves the integration of the oxygen production module of this embodiment. The setting of the connector 70 further improves the connection stability of the first molecular sieve barrel 10 and the second molecular sieve barrel 20.

[0051] The above-mentioned control component includes a valve body 510, a first valve core 520 and a second valve core 530. The first valve core 520 and the second valve core 530 are both connected to the valve body 510. The first valve core 520 is used to control the gas in the intake pipe 60 to enter the first molecular sieve barrel 10 from the valve body 510 through the third air channel 701, and the second valve core 530 is used to control the gas in the intake pipe 60 to enter the second molecular sieve barrel 20 from the valve body 510 through the fourth air channel 702.

[0052] The oxygen production module also includes a nitrogen outlet pipe 80, which is connected to the valve body 510. The first valve core 520 is used to control the nitrogen in the first molecular sieve barrel 10 to be discharged from the valve body 510 through the nitrogen outlet pipe 80, and the second valve core 530 is used to control the nitrogen in the second molecular sieve barrel 20 to be discharged from the valve body 510 through the nitrogen outlet pipe 80.

[0053] The first molecular sieve barrel 10 and the second molecular sieve barrel 20 of this embodiment work alternately to produce oxygen during actual application. Specifically, the first valve core 520 controls the compressed gas in the air inlet pipe 60 to enter the first molecular sieve barrel 10 through the third air channel 701, and oxygen is separated and produced under the action of the first molecular sieve barrel 10 and output from the oxygen outlet of the first molecular sieve barrel 10. When the first molecular sieve barrel 10 is working, the second valve core 530 is closed to prevent compressed air from entering the second molecular sieve barrel 20, or the second valve core 530 works to control the nitrogen in the second molecular sieve barrel 20 to be discharged through the nitrogen outlet pipe 80.

[0054] By the same principle, the second valve core 530 controls the compressed gas in the air inlet pipe 60 to enter the second molecular sieve barrel 20 through the fourth air channel 702, and oxygen is separated and generated under the action of the second molecular sieve barrel 20 and output from the oxygen outlet of the second molecular sieve barrel 20. When the second molecular sieve barrel 20 is working, the first valve core 520 is closed to prevent compressed air from entering the first molecular sieve barrel 10, or the first valve core 520 works to control the nitrogen in the first molecular sieve barrel 10 to be discharged through the nitrogen outlet pipe 80.

[0055] The first molecular sieve barrel 10 and the second molecular sieve barrel 20 cooperate with each other to achieve the continuity of oxygen production.

[0056] The valve body 510 is formed with a first gas port 501, a second gas port 502 and a third gas port 503 which are connected to each other. The first gas port 501 is connected to the air inlet pipe 60, the second gas port 502 is connected to the third gas channel 701, and the third gas port 503 is connected to the nitrogen outlet pipe 80. The valve body 510 is formed with a fourth gas port 504, a fifth gas port 505 and a sixth gas port 506 which are connected to each other. The fourth gas port 504 is connected to the air inlet pipe 60, the fifth gas port 505 is connected to the fourth gas channel 702, and the sixth gas port 506 is connected to the nitrogen outlet pipe 80.

[0057] Reference Figure 6 On the connecting piece 70, a first air hole 7011 and a second air hole 7012 are formed on the third air channel 701, the first air hole 7011 is connected to the second air port 502, and the second air hole 7012 is connected to the first air inlet 101 of the first molecular sieve barrel 10; a third air hole 7021 and a fourth air hole 7022 are formed on the fourth air channel 702, the third air hole 7021 is connected to the fifth air port 505, and the fourth air hole 7022 is connected to the second air inlet 201 of the second molecular sieve barrel 20.

[0058] The structure of the valve body 510 is given in this embodiment. Specifically, during the oxygen production process of the first molecular sieve barrel 10, the first valve core 520 controls the first gas port 501 and the second gas port 502 to be opened, and the third gas port 503 to be closed, so that the compressed air in the air inlet pipe 60 passes through the first gas port 501 and the second gas port 502 into the third gas channel 701 and then enters the first molecular sieve barrel 10. During the nitrogen exhaust process, the first valve core 520 controls the first gas port 501 to be closed, and the second gas port 502 and the third gas port 503 to be opened, so that the nitrogen in the first molecular sieve barrel 10 passes through the third gas channel 701, the second gas port 502 and the third gas port 503 in sequence and is discharged from the nitrogen outlet pipe 80.

[0059] Similarly, during the oxygen production process of the second molecular sieve barrel 20, the second valve core 530 controls the fourth gas port 504 and the fifth gas port 505 to be opened, and the sixth gas port 506 to be closed, so that the compressed air in the air inlet pipe 60 passes through the fourth gas port 504 and the fifth gas port 505 into the fourth gas channel 702 and then enters the second molecular sieve barrel 20. During the nitrogen exhaust process, the second valve core 530 controls the fourth gas port 504 to be closed, and the fifth gas port 505 and the sixth gas port 506 to be opened, so that the nitrogen in the second molecular sieve barrel 20 passes through the fourth gas channel 702, the fifth gas port 505 and the sixth gas port 506 in sequence and is discharged from the nitrogen outlet pipe 80.

[0060] The first valve core 520 and the second valve core 530 mentioned above adopt existing electromagnetic valve cores, and the working principle of the electromagnetic valve core is not specifically limited here.

[0061] The present utility model also provides an oxygen concentrator, including the above-mentioned oxygen concentrator module. The oxygen concentrator includes the same structure and beneficial effects as the oxygen concentrator module in the above-mentioned embodiment. The structure and beneficial effects of the molecular sieve have been described in detail in the above-mentioned embodiment, and will not be repeated here.

[0062] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. An oxygen production module, characterized in that: include: A first molecular sieve barrel (10), wherein two ends of the first molecular sieve barrel (10) are respectively formed with a first air inlet (101) and a first air outlet (102); A second molecular sieve barrel (20), arranged opposite to the first molecular sieve barrel (10), wherein two ends of the second molecular sieve barrel (20) are respectively formed with a second air inlet (201) and a second air outlet (202); A mounting seat (30), wherein the first molecular sieve barrel (10) and the second molecular sieve barrel (20) are both arranged on the mounting seat (30), and the mounting seat (30) is formed with a first through hole (301), a first air pipe (302) and a second through hole (303) which are connected in sequence, the first air outlet (102) is connected to the first through hole (301), and the second air outlet (202) is connected to the second through hole (303); The oxygen interface (40) is provided between the first molecular sieve barrel (10) and the second molecular sieve barrel (20), and is connected to the first air pipe (302).

2. The oxygen production module according to claim 1, characterized in that: The oxygen production module further comprises an oxygen storage tank (50), wherein the oxygen storage tank (50) is located between the first molecular sieve barrel (10) and the second molecular sieve barrel (20), and the oxygen interface (40) is arranged on the oxygen storage tank (50).

3. The oxygen production module according to claim 2, characterized in that: The mounting seat (30) is provided with a first annular boss (310), a second annular boss (320) and a third annular boss (330); the first annular boss (310) is connected to the first through hole (301), the second annular boss (320) is connected to the first air pipe (302), and the third annular boss (330) is connected to the second through hole (303); the first molecular sieve barrel (10) is arranged on the first annular boss (310), the oxygen storage tank (50) is arranged on the second annular boss (320), and the second molecular sieve barrel (20) is arranged on the third annular boss (330).

4. The oxygen production module according to claim 3, characterized in that: The first annular protrusion (310) and the inner wall of the first molecular sieve barrel (10), the second annular protrusion (320) and the inner wall of the oxygen storage tank (50), and the third annular protrusion (330) and the inner wall of the second molecular sieve barrel (20) are all interference fits.

5. The oxygen production module according to claim 3, characterized in that: A third through hole (304) is also formed on the mounting seat (30), and the third through hole (304) is located in the second annular protrusion (320) and is in communication with the first air pipe (302); The mounting seat (30) is provided with a valve (340), the valve (340) is arranged in the oxygen storage tank (50), and the valve (340) is located on the third through hole (304), and the valve (340) is used to control the opening and closing of the third through hole (304).

6. The oxygen production module according to claim 5, characterized in that: The valve (340) comprises a body (341) and a valve plate (342); a receiving cavity having an opening (3401) is formed at one end of the body (341); a fourth through hole (3402) is formed at the other end; a plurality of notches (3411) are formed in the receiving cavity; the notches (3411) communicate with the receiving cavity and the fourth through hole (3402); A fourth annular seat (321) is also provided inside the second annular protrusion (320); the main body (341) is provided on the fourth annular seat (321) through the opening (3401); the valve plate (342) is movably provided in the accommodating cavity; the valve plate (342) can be attached to the third through hole (304) or the plurality of notches (3411).

7. The oxygen production module according to claim 5 or 6, characterized in that: A first flow limiting valve (350) is provided at one end of the first air pipe (302) close to the first through hole (301), and a second flow limiting valve (360) is provided at one end of the first air pipe (302) close to the second through hole (303), and the valve (340) is located between the first flow limiting valve (350) and the second flow limiting valve (360).

8. The oxygen production module according to any one of claims 2 to 6, characterized in that: A first mounting platform (501) is formed on the outer periphery of the first molecular sieve barrel (10), the second molecular sieve barrel (20) and the oxygen storage tank (50), a first threaded hole (5011) is formed on the first mounting platform (501), a corresponding second threaded hole (305) is formed on the mounting seat (30), and the first threaded hole (5011) and the second threaded hole (305) are connected by a screw.

9. The oxygen production module according to any one of claims 1 to 6, characterized in that: The oxygen production module also includes: An air intake pipe (60), a connecting piece (70) and a control component, wherein a third air channel (701) and a fourth air channel (702) are formed on the connecting piece (70), and the air intake pipe (60) is arranged on the connecting piece (70); the first air inlet (101) is connected to the third air channel (701), and the second air inlet (201) is connected to the fourth air channel (702); the control component is arranged on the connecting piece (70) and is connected to the air intake pipe (60), the third air channel (701) and the fourth air channel (702), and the control component is used to control the gas of the air intake pipe (60) to enter the first molecular sieve barrel (10) through the third air channel (701), or the control component is used to control the gas of the air intake pipe (60) to enter the second molecular sieve barrel (20) through the fourth air channel (702).

10. An oxygen concentrator, characterized in that: An oxygen production module comprising any one of claims 1 to 9.

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