Oxygen production device capable of controlling oxygen concentration

Abstract

The utility model discloses an oxygen generating device capable of controlling oxygen concentration, which comprises a shell, a molecular sieve, an air compressor and a storage box are arranged in the shell, and an air supply pipe is arranged on the air compressor and is connected with the molecular sieve. When the oxygen concentration sensor monitors that the oxygen concentration reaches the standard, the second electromagnetic valve is opened, the first electromagnetic valve is closed, oxygen enters the storage box to be stored at the moment, and when the oxygen concentration sensor monitors that the oxygen concentration does not reach the standard, the first electromagnetic valve is opened, and the second electromagnetic valve is closed. At the moment, the oxygen enters the molecular sieve again through the air return pipe to isolate nitrogen ions, and can enter the storage box until oxygen concentration monitoring is met, so that the oxygen with the required concentration value can be stored in the storage box, and the oxygen generation device can prepare oxygen with the corresponding concentration according to requirements in different use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen-making devices, and specifically relates to an oxygen-making device capable of controlling the oxygen concentration. Background Technique

[0002] An oxygen-making device is a device that extracts high-purity oxygen from the air by physical or chemical methods. The oxygen-making device mainly realizes the separation and purification of oxygen through physical adsorption method, chemical reaction method and low-temperature separation method. Among them, the physical adsorption method, such as pressure swing adsorption (PSA) and vacuum pressure swing adsorption (VPSA) technology, these technologies use specific adsorbents (such as molecular sieves) to selectively adsorb nitrogen in the air under high pressure, so that oxygen can be enriched. During the decompression process, the adsorbent releases nitrogen and restores its adsorption capacity to carry out the next round of adsorption process. This method has the characteristics of high efficiency, energy saving and environmental protection.

[0003] At present, although the physical adsorption method for preparing oxygen is efficient, it can only display the oxygen concentration value after preparation, and cannot prepare oxygen with a corresponding concentration according to needs, which makes it impossible to provide oxygen with a standard concentration in many application scenarios.

[0004] Therefore, an oxygen-making device capable of controlling the oxygen concentration is proposed to solve the above problems. Content of the Utility Model

[0005] 1. Technical Problem to be Solved by the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an oxygen-making device capable of controlling the oxygen concentration, aiming to solve the problem that although the physical adsorption method for preparing oxygen in the prior art is efficient, it can only display the oxygen concentration value after preparation, and cannot prepare oxygen with a corresponding concentration according to needs, which makes it impossible to provide oxygen with a standard concentration in many application scenarios.

[0007] 2. Technical Solution

[0008] To achieve the above purpose, the utility model provides the following technical solution:

[0009] An oxygen generation device capable of controlling the oxygen concentration, comprising a housing, inside which a molecular sieve, an air compressor and a storage tank are installed. An air supply pipe is installed on the air compressor and connected to the molecular sieve. A delivery pipe is installed on the storage tank and connected to the molecular sieve. An oxygen concentration sensor for monitoring the oxygen concentration is installed on the delivery pipe. A return air pipe is connected to the molecular sieve. One end of the return air pipe is connected to the delivery pipe. A solenoid valve one and a solenoid valve two are respectively installed on the return air pipe and the delivery pipe. When the oxygen concentration sensor monitors that the oxygen concentration reaches the standard, the solenoid valve two opens and the solenoid valve one closes. When the oxygen concentration sensor monitors that the oxygen concentration does not reach the standard, the solenoid valve one opens and the solenoid valve two closes.

[0010] As a preferred solution of the present utility model, a touch screen is embedded and installed at the top of one end of the housing. An exhaust pipe is installed at the bottom of one end of the housing. Heat dissipation nets are installed at the bottom of both side surfaces of the housing. An air inlet is installed at one end of the top of the housing.

[0011] As a preferred solution of the present utility model, a molecular sieve is installed at one end of the inner bottom of the housing. An air compressor is installed at the bottom of one side surface of the molecular sieve at the inner bottom of the housing. A storage tank is installed on the top of the air compressor.

[0012] As a preferred solution of the present utility model, one end of the delivery pipe is connected to the top of the molecular sieve. An oxygen concentration sensor is sleeved and installed on the outer ring surface of the delivery pipe. The solenoid valve two is installed on the top of the storage tank. The top of the solenoid valve two is connected to one end of the delivery pipe. One end of the return air pipe is connected to the bottom of the outer side surface of the molecular sieve. The other end of the return air pipe is connected to the outer ring surface of the delivery pipe between the oxygen concentration sensor and the solenoid valve two. The solenoid valve one is sleeved and installed on the outer ring surface of the return air pipe.

[0013] As a preferred solution of the present utility model, an air inlet pipe is connected to one end of the top of the air compressor. The top of the air inlet pipe is connected to the top of the air inlet. The air supply pipe is connected to the exhaust port of the air compressor. The other end of the air supply pipe is connected to a position near the return air pipe at the bottom of the outer side surface of the molecular sieve.

[0014] As a preferred solution of the present utility model, support frames are symmetrically installed at the bottom of both side surfaces of the storage tank. The bottom of the support frames is installed on the inner side bottom surface of the housing. A connecting hose is connected to one side surface of the storage tank. The connecting hose is connected to the exhaust pipe.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] In the present utility model, air is compressed by an air compressor and then input into a molecular sieve through a supply pipe. After the molecular sieve isolates the nitrogen ions in the air, oxygen is discharged through a delivery pipe. At this time, when the oxygen concentration sensor monitors that the oxygen concentration reaches the standard, solenoid valve two is opened and solenoid valve one is closed. At this time, oxygen enters the storage tank for storage. When the oxygen concentration sensor monitors that the oxygen concentration does not reach the standard, solenoid valve one is opened and solenoid valve two is closed. At this time, oxygen enters the molecular sieve again through the return pipe for nitrogen ion isolation until the oxygen concentration monitoring is satisfied before it can enter the storage tank, so that the storage tank can store oxygen with the required concentration value, enabling the oxygen generation device to prepare oxygen with corresponding concentration according to the demand in different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of an oxygen generation device with controllable oxygen concentration according to the present utility model;

[0019] Figure 2 is the split structural schematic diagram of an oxygen generation device with controllable oxygen concentration according to the present utility model;

[0020] Figure 3 is the radiator structural schematic diagram of an oxygen generation device with controllable oxygen concentration according to the present utility model;

[0021] Figure 4 is the pressing member structural schematic diagram of an oxygen generation device with controllable oxygen concentration according to the present utility model.

[0022] In the figure: 1. Housing; 11. Touch screen; 12. Exhaust pipe; 13. Heat dissipation net; 14. Air inlet; 2. Molecular sieve; 21. Return pipe; 22. Solenoid valve one; 3. Air compressor; 31. Inlet pipe; 32. Supply pipe; 4. Storage tank; 41. Support frame; 42. Solenoid valve two; 43. Delivery pipe; 44. Oxygen concentration sensor; 45. Connecting hose. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment:

[0025] Please refer to Figures 1-4, this embodiment provides an oxygen generation device capable of controlling the oxygen concentration, which includes a housing 1. Inside the housing 1, a molecular sieve 2, an air compressor 3, and a storage tank 4 are installed. An air supply pipe 32 is installed on the air compressor 3 and is connected to the molecular sieve 2. A delivery pipe 43 is installed on the storage tank 4 and is connected to the molecular sieve 2. An oxygen concentration sensor 44 for monitoring the oxygen concentration is installed on the delivery pipe 43. A return air pipe 21 is connected to the molecular sieve 2. One end of the return air pipe 21 is connected to the delivery pipe 43. A solenoid valve 1 22 and a solenoid valve 2 42 are respectively installed on the return air pipe 21 and the delivery pipe 43. When the oxygen concentration sensor 44 monitors that the oxygen concentration meets the standard, the solenoid valve 2 42 opens and the solenoid valve 1 22 closes. When the oxygen concentration sensor 44 monitors that the oxygen concentration does not meet the standard, the solenoid valve 1 22 opens and the solenoid valve 2 42 closes. When this oxygen generation device capable of controlling the oxygen concentration is in use, the air is compressed by the air compressor 3 and then input into the molecular sieve 2 through the air supply pipe 31. The molecular sieve 2 isolates the nitrogen ions in the air and then discharges the oxygen through the delivery pipe 43. At this time, when the oxygen concentration sensor 44 monitors that the oxygen concentration meets the standard, the solenoid valve 2 42 opens and the solenoid valve 1 22 closes. At this time, the oxygen enters the storage tank 4 for storage. When the oxygen concentration sensor 44 monitors that the oxygen concentration does not meet the standard, the solenoid valve 1 22 opens and the solenoid valve 2 42 closes. At this time, the oxygen re-enters the molecular sieve 2 through the return air pipe 21 for nitrogen ion isolation until the oxygen concentration monitoring is satisfied before it can enter the storage tank 4, so that the storage tank 4 can store oxygen with the required concentration value, enabling this oxygen generation device to prepare oxygen with corresponding concentrations according to requirements in different usage scenarios.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 shown, one end of the delivery pipe 43 is connected to the top of the molecular sieve 2. An oxygen concentration sensor 44 is sleeved and installed on the outer ring surface of the delivery pipe 43. The solenoid valve 2 42 is installed on the top of the storage tank 4. The top of the solenoid valve 2 42 is connected to one end of the delivery pipe 43. One end of the return air pipe 21 is connected to the bottom of the outer side surface of the molecular sieve 2. The other end of the return air pipe 21 is connected to the outer ring surface of the delivery pipe 43 between the oxygen concentration sensor 44 and the solenoid valve 2 42. The solenoid valve 1 22 is sleeved and installed on the outer ring surface of the return air pipe 21. Therefore, the oxygen discharged from the molecular sieve 2 is first monitored for oxygen concentration by the oxygen concentration sensor 44, and then distributed to different pipes through the solenoid valve 1 22 and the solenoid valve 2 42.

[0027] In this embodiment, as Figure 1 and Figure 2As shown, one end of the top of the air compressor 3 is connected to an air inlet pipe 31. The top of the air inlet pipe 31 is connected to the top of the air intake port 14. The air supply pipe 32 is connected to the exhaust port of the air compressor 3. The other end of the air supply pipe 32 is connected to a position on the bottom of the outer side of the molecular sieve 2 near the return air pipe 21. Therefore, the air compressor 3 can suck in external air, compress it, and then transport it to the inside of the molecular sieve 2 through the air supply pipe 32 for nitrogen ion isolation.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, support frames 41 are symmetrically installed at the bottom of both side surfaces of the storage tank 4. The bottom of the support frames 41 is installed on the bottom of the inner side surface of the housing 1. A connecting hose 45 is connected to one side surface of the storage tank 4. The connecting hose 45 is connected to the exhaust pipe 12. Therefore, the prepared oxygen with the required concentration can be discharged through the exhaust pipe 12 for use.

[0029] Working principle: When the oxygen generation device with controllable oxygen concentration is in use, first, the air compressor 3 can suck in external air and compress it, and then transport it to the inside of the molecular sieve 2 through the air supply pipe 32 for nitrogen ion isolation. The oxygen discharged from the molecular sieve 2 is first monitored for oxygen concentration by the oxygen concentration sensor 44, and then distributed to different pipes through the solenoid valve 1 22 and the solenoid valve 2 42. When the oxygen concentration sensor 44 monitors that the oxygen concentration reaches the standard, the solenoid valve 2 42 opens and the solenoid valve 1 22 closes. At this time, the oxygen enters the storage tank 4 for storage. When the oxygen concentration sensor 44 monitors that the oxygen concentration does not reach the standard, the solenoid valve 1 22 opens and the solenoid valve 2 42 closes. At this time, the oxygen enters the molecular sieve 2 again through the return air pipe 21 for nitrogen ion isolation until the oxygen concentration monitoring is satisfied and then it can enter the storage tank 4, so that the storage tank 4 can store oxygen with the required concentration value, enabling the oxygen generation device to prepare oxygen with the corresponding concentration according to the demand in different usage scenarios.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. An oxygen generation device capable of controlling the oxygen concentration, comprising a housing (1), characterized in that: Inside the housing (1), a molecular sieve (2), an air compressor (3), and a storage tank (4) are installed. An air supply pipe (32) is installed on the air compressor (3) and connected to the molecular sieve (2). A delivery pipe (43) is installed on the storage tank (4) and connected to the molecular sieve (2). An oxygen concentration sensor (44) for monitoring the oxygen concentration is installed on the delivery pipe (43). A return air pipe (21) is connected to the molecular sieve (2). One end of the return air pipe (21) is connected to the delivery pipe (43). A solenoid valve one (22) and a solenoid valve two (42) are respectively installed on the return air pipe (21) and the delivery pipe (43). When the oxygen concentration sensor (44) monitors that the oxygen concentration meets the standard, the solenoid valve two (42) opens and the solenoid valve one (22) closes. When the oxygen concentration sensor (44) monitors that the oxygen concentration does not meet the standard, the solenoid valve one (22) opens and the solenoid valve two (42) closes.

2. The oxygen generation device capable of controlling the oxygen concentration according to claim 1, characterized in that: A touch screen (11) is embedded and installed at the top of one end of the housing (1). An exhaust pipe (12) is installed at the bottom of one end of the housing (1). Heat dissipation nets (13) are installed at the bottom of both side surfaces of the housing (1). An air inlet (14) is installed at one end of the top of the housing (1).

3. The oxygen generation device capable of controlling the oxygen concentration according to claim 1, wherein: A molecular sieve (2) is installed at one end of the inner bottom of the housing (1). An air compressor (3) is installed at the bottom of one side surface of the molecular sieve (2) on the inner bottom of the housing (1). A storage tank (4) is installed on the top of the air compressor (3).

4. The oxygen generation device capable of controlling the oxygen concentration according to claim 1, characterized in that: One end of the delivery pipe (43) is connected to the top of the molecular sieve (2). An oxygen concentration sensor (44) is sleeved and installed on the outer ring surface of the delivery pipe (43). The solenoid valve two (42) is installed on the top of the storage tank (4). The top of the solenoid valve two (42) is connected to one end of the delivery pipe (43). One end of the return air pipe (21) is connected to the bottom of the outer side surface of the molecular sieve (2). The other end of the return air pipe (21) is connected to the outer ring surface of the delivery pipe (43) between the oxygen concentration sensor (44) and the solenoid valve two (42). The solenoid valve one (22) is sleeved and installed on the outer ring surface of the return air pipe (21).

5. The oxygen generation device capable of controlling the oxygen concentration according to claim 1, wherein: One end of the top of the air compressor (3) is connected to an air inlet pipe (31). The top of the air inlet pipe (31) is connected to the top of the air inlet (14). The air supply pipe (32) is connected to the exhaust port of the air compressor (3). The other end of the air supply pipe (32) is connected to a position on the bottom of the outer side surface of the molecular sieve (2) near the return air pipe (21).

6. The oxygen generation device capable of controlling the oxygen concentration according to claim 1, wherein: Support frames (41) are symmetrically installed at the bottom of both side surfaces of the storage tank (4). The bottom of the support frames (41) is installed on the inner side surface bottom of the housing (1). A connecting hose (45) is connected to one side surface of the storage tank (4). The connecting hose (45) is connected to the exhaust pipe (12).

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