Portable pulse oxygen generator gas circuit

Abstract

The embodiment of the utility model discloses a gas circuit of a portable pulse oxygen generator. The gas circuit comprises a bracket, an air compressor, an adapter plate, a valve body assembly and a PSA (Pressure Swing Adsorption) assembly, the support comprises a top plate and two side plates, the two ends of the top plate are fixedly connected with the top ends of the side plates respectively, and the bottom ends of the two side plates are used for being connected with the bottom plate. An air compressor is arranged between the two side plates, an outlet of the air compressor is connected with an adapter plate, the adapter plate is nested on the top plate, and a valve body assembly is arranged on the top surface of the adapter plate. The oxygen generator is compact and reasonable in gas path layout, and can effectively reduce noise.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen production, and in particular to a gas circuit of a portable pulse oxygen generator. Background Art

[0002] The portable pulse oxygen generator is an oxygen production equipment that uses the principle of pressure swing adsorption to separate oxygen from the air. The air is compressed by an air compressor, and the compressed air enters the adsorption tower equipped with molecular sieves through a ventilation valve, and oxygen is produced through a periodic cycle of adsorption and analysis.

[0003] Portable pulse oxygen concentrators generally use air pipes to connect air compressors, valve components and PSA adsorption components. PSA adsorption components generally use double-tower adsorption, and the valve body is used to control the on-off of the two sets of gas circuits and the PSA analysis and nitrogen discharge process.

[0004] In practice, it is found that due to the small size of the portable pulse oxygen concentrator and the complex air pipe connection, the core components such as the air compressor, control valve body, and PSA adsorption assembly have poor air tightness, a short nitrogen exhaust path, and high nitrogen exhaust noise. Utility Model Content

[0005] The purpose of this application is to provide a portable pulse oxygen concentrator gas circuit to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the portable pulse oxygen concentrator gas circuit provided in the embodiment of the present application includes: a bracket, an air compressor, an adapter plate, a valve body assembly and a PSA adsorption assembly;

[0007] Wherein, the bracket includes a top plate and two side plates, the two ends of the top plate are respectively fixedly connected to the top of one of the side plates, and the bottom ends of the two side plates are used to connect to the bottom plate;

[0008] The air compressor is arranged between the two side plates, the outlet of the air compressor is connected to the adapter plate, the adapter plate is nested on the top plate, and the valve body assembly is arranged on the top surface of the adapter plate;

[0009] The adapter plate is provided with an adapter plate main air inlet groove, an adapter plate first air inlet groove, an adapter plate second air inlet groove, an adapter plate nitrogen exhaust groove, a first vent hole and a second vent hole, wherein the first vent hole and the second vent hole are located on the bottom surface of the adapter plate;

[0010] The valve body assembly comprises a solenoid valve, and the bottom surface of the valve body assembly is provided with a valve body main air inlet groove, a valve body first air inlet groove, a valve body second air inlet groove and a valve body nitrogen exhaust groove;

[0011] The bottom of the main air inlet groove of the adapter plate is connected to the outlet of the air compressor, the top of the main air inlet groove of the adapter plate is connected to the main air inlet groove of the valve body, the main air inlet groove of the valve body is connected in parallel to the first air inlet groove of the valve body and the second air inlet groove of the valve body, the main air inlet groove of the valve body is also connected to the solenoid valve, and the solenoid valve controls the connection and disconnection of the main air inlet groove of the valve body and the first air inlet groove of the valve body or the second air inlet groove of the valve body;

[0012] The first air inlet groove of the valve body is connected to the top of the first air guide shaft through the first air inlet groove of the adapter plate and the first air vent in sequence, and the bottom of the first air guide shaft is connected to the first port of the PSA adsorption assembly;

[0013] The second air inlet groove of the valve body is connected to the top of the second air guide shaft through the second air inlet groove of the adapter plate and the second air vent in sequence, and the bottom of the second air guide shaft is connected to the second port of the PSA adsorption assembly;

[0014] The first vent hole and the second vent hole are also connected to the top of the nitrogen exhaust groove of the adapter plate through the nitrogen exhaust groove of the valve body, the nitrogen exhaust groove of the valve body is connected to the solenoid valve, the solenoid valve controls the on-off of the nitrogen exhaust groove of the valve body and the nitrogen exhaust groove of the adapter plate, the bottom of the nitrogen exhaust groove of the adapter plate is connected to the top of the nitrogen exhaust groove of the bracket, and the bottom of the nitrogen exhaust groove of the bracket outputs nitrogen to external equipment.

[0015] Furthermore, a sound-absorbing cotton is arranged in the nitrogen exhaust groove of the bracket.

[0016] Furthermore, the depth of the nitrogen exhaust groove of the bracket is set to be greater than 100 mm.

[0017] Furthermore, the bracket nitrogen exhaust groove is fixedly arranged on the side plate.

[0018] Furthermore, sealing rings are provided at both ends of the first air guide shaft.

[0019] Furthermore, sealing rings are provided at both ends of the second air guide shaft.

[0020] Compared with the prior art, the portable pulse oxygen concentrator gas circuit provided in the embodiment of the present application has at least the following advantages:

[0021] 1. The embodiment of the present application uses a valve body assembly and an adapter plate to arrange the gas circuit, which effectively avoids the complexity of the gas pipe connection, has a compact structure, high reliability, and is easy to assemble.

[0022] 2. In the embodiment of the present application, since the path of the nitrogen exhaust groove of the bracket is long and sound-absorbing materials such as sound-absorbing cotton are arranged inside, the sound is reflected back and forth on the inner wall of the groove and absorbed by the sound-absorbing cotton. Therefore, the sound energy can be converted into heat energy and consumed, thereby effectively reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded diagram of the gas circuit of the portable pulse oxygen concentrator provided in an embodiment of the present application.

[0024] Figure 2 yes Figure 1 Schematic diagram of the connection relationship between the middle valve body assembly and the adapter plate.

[0025] Figure 3 It is an exploded view of the bracket, adapter plate, and valve body assembly of the air circuit of the portable pulse oxygen concentrator provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solution of the present application will be clearly and completely described below in conjunction with specific implementation schemes, but those skilled in the art should understand that the implementation schemes described below are only used to illustrate the present application and should not be regarded as limiting the scope of the present application. Based on the implementation schemes in the present application, all other implementation schemes obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0027] like Figure 1-3 As shown, the portable pulse oxygen concentrator gas circuit provided in the embodiment of the present application includes a bracket 1, an air compressor 2, an adapter plate 3, a valve body assembly 4 and a PSA adsorption assembly 5;

[0028] The bracket 1 includes a top plate and two side plates, the two ends of the top plate are respectively fixedly connected to the top of one side plate, and the bottom ends of the two side plates are used to connect to the bottom plate;

[0029] An air compressor 2 is arranged between the two side plates, the outlet of the air compressor 2 is connected to the adapter plate 3, the adapter plate 3 is nested on the top plate, and a valve body assembly 4 is arranged on the top surface of the adapter plate 3;

[0030] like Figure 2 As shown, the adapter plate 3 is provided with an adapter plate main air inlet groove 31, an adapter plate first air inlet groove 32, an adapter plate second air inlet groove 33, an adapter plate nitrogen exhaust groove 34, a first air vent and a second air vent, wherein the first air vent and the second air vent are located on the bottom surface of the adapter plate 3;

[0031] The valve body assembly 4 includes a solenoid valve 41, and a valve body main air inlet groove 42, a valve body first air inlet groove 43, a valve body second air inlet groove 44 and a valve body nitrogen exhaust groove 45 are arranged on the bottom surface of the valve body assembly 4;

[0032] The bottom of the adapter plate main air inlet groove 31 is connected to the outlet of the air compressor 2, and the top of the adapter plate main air inlet groove 31 is connected to the valve body main air inlet groove 42, the valve body main air inlet groove 42 is connected in parallel to the valve body first air inlet groove 43 and the valve body second air inlet groove 44, and the valve body main air inlet groove 42 is also connected to the solenoid valve 41, and the solenoid valve 41 controls the opening and closing of the valve body main air inlet groove 42 and the valve body first air inlet groove 43 or the valve body second air inlet groove 44;

[0033] The first air inlet groove 43 of the valve body is connected to the top of the first air guide shaft 6 through the first air inlet groove 32 of the adapter plate and the first air vent in sequence, and the bottom of the first air guide shaft 6 is connected to the first port of the PSA adsorption assembly 5;

[0034] The second air inlet groove 44 of the valve body is connected to the top of the second air guide shaft 7 through the second air inlet groove 33 of the adapter plate and the second air vent in sequence, and the bottom of the second air guide shaft 7 is connected to the second port of the PSA adsorption assembly 5;

[0035] like Figure 3 As shown, the first vent hole and the second vent hole are also connected to the top of the adapter plate nitrogen exhaust groove 34 through the valve body nitrogen exhaust groove 45, the valve body nitrogen exhaust groove 45 is connected to the solenoid valve 41, the solenoid valve 41 controls the on-off of the valve body nitrogen exhaust groove 45 and the adapter plate nitrogen exhaust groove 34, the bottom of the adapter plate nitrogen exhaust groove 34 is connected to the top of the bracket nitrogen exhaust groove 11, and the bottom of the bracket nitrogen exhaust groove 11 outputs nitrogen to external equipment.

[0036] To facilitate understanding of the gas circuit structure of the portable pulse oxygen concentrator provided in the embodiment of the present application, the gas circuit operation mode is described in detail below:

[0037] The air compressor 2 pressurizes the air and passes it through the main air inlet groove 31 of the adapter plate to the main air inlet groove 42 of the valve body. The solenoid valve 41 controls the main air inlet groove 42 of the valve body to be connected with the first air inlet groove 43 of the valve body, and the main air inlet groove is disconnected from the second air inlet groove 44 of the valve body. Alternatively, the solenoid valve 41 controls the main air inlet groove 42 of the valve body to be disconnected from the first air inlet groove 43 of the valve body, and the main air inlet groove is connected with the second air inlet groove 44 of the valve body.

[0038] Here, the solenoid valve 41 controls the main air inlet groove 42 of the valve body to communicate with the first air inlet groove 43 of the valve body, and the main air inlet groove is disconnected from the second air inlet groove 44 of the valve body, as an example for explanation;

[0039] The pressurized air passes through the first air inlet groove 43 of the valve body, the first air inlet groove 32 of the adapter plate, the first vent hole, the first air guide shaft 6, and the first port of the PSA adsorption assembly 5 into one of the molecular sieve barrels of the PSA adsorption assembly 5. When the adsorption of the molecular sieve barrel is completed, the solenoid valve 41 controls the main air inlet groove 42 of the valve body to be shut off from the first air inlet groove 43 of the valve body, and the main air inlet groove is connected to the second air inlet groove 44 of the valve body;

[0040] At this time, the pressurized air passes through the second air inlet groove 44 of the valve body, the second air inlet groove 33 of the adapter plate, the second vent hole, the second air guide shaft 7, and the second port of the PSA adsorption assembly 5 into another molecular sieve barrel of the PSA adsorption assembly 5. When the adsorption of the molecular sieve barrel is completed, the solenoid valve 41 controls the main air inlet groove to be shut off from the second air inlet groove 44 of the valve body, and controls the communication between the nitrogen exhaust groove 45 of the valve body and the nitrogen exhaust groove 34 of the adapter plate;

[0041] At this time, the nitrogen enters the first gas guide shaft 6 and the second gas guide shaft 7 through the first port and the second port of the PSA adsorption component 5 respectively. The first gas guide shaft 6 and the second gas guide shaft 7 respectively gather the nitrogen to the valve body nitrogen discharge groove 45 through the first air vent and the second air vent, and then through the valve body nitrogen discharge groove 45 to the adapter plate nitrogen discharge groove 34 and the bracket nitrogen discharge groove 11, so as to output the nitrogen to the external equipment.

[0042] Obviously, the gas circuit of the portable pulse oxygen concentrator provided in the embodiment of the present application is laid out through the valve body assembly 4 and the adapter plate 3, which effectively avoids the complexity of the air pipe connection, has a compact structure, high reliability, and is easy to assemble.

[0043] In the embodiment of the present application, a sound-absorbing cotton is arranged in the nitrogen exhaust groove 11 of the bracket, and the depth of the nitrogen exhaust groove 11 of the bracket is set to be more than 100 mm.

[0044] Obviously, since the path of the bracket nitrogen exhaust groove 11 is long and sound-absorbing materials such as sound-absorbing cotton are arranged inside, the sound is reflected back and forth on the inner wall of the groove body and absorbed by the sound-absorbing cotton. Therefore, the sound energy can be converted into heat energy and consumed, effectively reducing noise.

[0045] Specifically, the bracket nitrogen discharge groove 11 can be fixedly arranged on the side plate.

[0046] In the embodiment of the present application, sealing rings 8 are provided at both ends of the air guide shaft to improve air tightness.

[0047] Although the present application has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.

Claims

1. A portable pulse oxygen concentrator gas circuit, characterized in that: Includes bracket, air compressor, adapter plate, valve body assembly and PSA adsorption assembly; Wherein, the bracket includes a top plate and two side plates, the two ends of the top plate are respectively fixedly connected to the top of one of the side plates, and the bottom ends of the two side plates are used to connect to the bottom plate; The air compressor is arranged between the two side plates, the outlet of the air compressor is connected to the adapter plate, the adapter plate is nested on the top plate, and the valve body assembly is arranged on the top surface of the adapter plate; The adapter plate is provided with an adapter plate main air inlet groove, an adapter plate first air inlet groove, an adapter plate second air inlet groove, an adapter plate nitrogen exhaust groove, a first vent hole and a second vent hole, wherein the first vent hole and the second vent hole are located on the bottom surface of the adapter plate; The valve body assembly comprises a solenoid valve, and the bottom surface of the valve body assembly is provided with a valve body main air inlet groove, a valve body first air inlet groove, a valve body second air inlet groove and a valve body nitrogen exhaust groove; The bottom of the main air inlet groove of the adapter plate is connected to the outlet of the air compressor, the top of the main air inlet groove of the adapter plate is connected to the main air inlet groove of the valve body, the main air inlet groove of the valve body is connected in parallel to the first air inlet groove of the valve body and the second air inlet groove of the valve body, the main air inlet groove of the valve body is also connected to the solenoid valve, and the solenoid valve controls the connection and disconnection of the main air inlet groove of the valve body and the first air inlet groove of the valve body or the second air inlet groove of the valve body; The first air inlet groove of the valve body is connected to the top of the first air guide shaft through the first air inlet groove of the adapter plate and the first air vent in sequence, and the bottom of the first air guide shaft is connected to the first port of the PSA adsorption assembly; The second air inlet groove of the valve body is connected to the top of the second air guide shaft through the second air inlet groove of the adapter plate and the second air vent in sequence, and the bottom of the second air guide shaft is connected to the second port of the PSA adsorption assembly; The first vent hole and the second vent hole are also connected to the top of the nitrogen exhaust groove of the adapter plate through the nitrogen exhaust groove of the valve body, the nitrogen exhaust groove of the valve body is connected to the solenoid valve, the solenoid valve controls the on-off of the nitrogen exhaust groove of the valve body and the nitrogen exhaust groove of the adapter plate, the bottom of the nitrogen exhaust groove of the adapter plate is connected to the top of the nitrogen exhaust groove of the bracket, and the bottom of the nitrogen exhaust groove of the bracket outputs nitrogen to external equipment.

2. The portable pulse oxygen concentrator gas circuit according to claim 1, characterized in that: A sound-absorbing cotton is arranged in the nitrogen exhaust groove of the bracket.

3. The portable pulse oxygen concentrator gas circuit according to claim 2, characterized in that: The depth of the nitrogen discharge groove of the bracket is set to be more than 100 mm.

4. The portable pulse oxygen concentrator gas circuit according to claim 1, characterized in that: The bracket nitrogen discharge groove is fixedly arranged on the side plate.

5. The portable pulse oxygen concentrator gas circuit according to claim 1, characterized in that: Sealing rings are provided at both ends of the first air guide shaft.

6. The portable pulse oxygen concentrator gas circuit according to claim 1, characterized in that: Sealing rings are provided at both ends of the second air guide shaft.

Images