一种制氧系统和供氧系统
By using dual-tower pressure swing adsorption technology and control valves, the problem of discontinuous oxygen output in traditional oxygen production systems has been solved, enabling continuous oxygen supply and concentration regulation, adapting to various application scenarios, and improving the stability and adaptability of medical and industrial production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANYANG XIANGYU MEDICAL EQUIP
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional oxygen generation systems suffer from discontinuous oxygen output due to single-tower pressure swing adsorption technology, which affects the effectiveness of medical treatment and the continuity of industrial production, and is difficult to adapt to the differentiated needs of different scenarios.
The system employs dual-tower pressure swing adsorption (PSA) technology, which uses two molecular sieve towers to alternately carry out the adsorption and desorption processes. Combined with control valves and gas mixing devices, it ensures the continuity of oxygen output and the regulation of concentration.
It achieves continuous oxygen output and adjustable concentration, adapting to various application scenarios and improving the safety and efficiency of medical and industrial production.
Smart Images
Figure CN224506658U_ABST
Abstract
Claims
1. An oxygen generating system, characterized by, include: The compressor has air input inside it; An oxygen collection device for collecting generated oxygen; A nitrogen collection device for collecting generated nitrogen gas; An oxygen generating device, comprising a first adsorption tower and a second adsorption tower, wherein a first molecular sieve is disposed inside the first adsorption tower and a second molecular sieve is disposed inside the second adsorption tower. The oxygen generating device has three preset operating states. In the first operating state, the inlet port of the first molecular sieve is connected to the compressor, the oxygen port of the first molecular sieve is connected to the oxygen collection device, the nitrogen port of the first molecular sieve is connected to the inlet port of the second adsorption tower, and the outlet port of the second adsorption tower is connected to the nitrogen collection device. In the oxygen generating device in the second usage state, the air inlet port of the first molecular sieve and the air inlet port of the second molecular sieve are respectively connected to the compressor; In the oxygen generating device in the third usage state, the air inlet port of the second molecular sieve is connected to the compressor, the oxygen port of the second molecular sieve is connected to the oxygen collection device, the nitrogen port of the second molecular sieve is connected to the air inlet port of the first adsorption tower, and the air outlet port of the first adsorption tower is connected to the nitrogen collection device. The first usage state, the second usage state, and the third usage state are sequentially continued for a set time and cycled.
2. The oxygen generating system of claim 1, wherein, The oxygen generation system further includes a control valve, which includes: The valve body has a gas chamber inside and is provided with a first port, a second port and a third port respectively communicating with the gas chamber; wherein, the first port is connected to the compressor, the second port is connected to the air inlet port of the first molecular sieve and the third port is connected to the air inlet port of the second molecular sieve. The valve body is also provided with a nitrogen channel inside. The inlet port of the nitrogen channel is connected to the outlet port of the first adsorption tower and the outlet port of the second adsorption tower, respectively. The outlet port of the nitrogen channel is connected to the nitrogen collection device. When the oxygen generating device is in the first operating state, the first port and the second port are in the flow state, and the third port is in the disconnected state; the channel between the outlet port of the first adsorption tower and the inlet port of the nitrogen channel is disconnected, the channel between the outlet port of the second adsorption tower and the inlet port of the nitrogen channel is in the flow state, and the port between the outlet port of the nitrogen channel and the nitrogen collecting device is in the flow state. When the oxygen generating device is in the second operating state, the first port, the second port, and the third port are all in a flowing state; the channel between the outlet port of the first adsorption tower and the inlet port of the nitrogen channel is disconnected, and the channel between the outlet port of the second adsorption tower and the inlet port of the nitrogen channel is disconnected. When the oxygen generating device is in the third operating state, the first port and the third port are in the flow state, and the second port is in the disconnected state; the channel between the outlet port of the second adsorption tower and the inlet port of the nitrogen channel is disconnected, the channel between the outlet port of the first adsorption tower and the inlet port of the nitrogen channel is in the flow state, and the port between the outlet port of the nitrogen channel and the nitrogen collecting device is in the flow state.
3. The oxygen generating system of claim 2, wherein, The oxygen generation system further includes a gas mixing device, the interior of which forms a mixing chamber, and the inlet port of the mixing chamber is connected to the outlet port of the oxygen collection device and the outlet port of the nitrogen collection device, respectively.
4. The oxygen generating system of claim 3, wherein, A first pressure reducing valve and a first solenoid valve are respectively installed in the passage formed between the oxygen collection device and the gas mixing device; A second pressure reducing valve and a second solenoid valve are respectively installed in the passage formed between the nitrogen collection device and the gas mixing device.
5. The oxygen generating system of claim 4, wherein, The oxygen generation system also includes: An oxygen concentration sensor is provided at the outlet port of the gas mixing device and is used to collect oxygen concentration information in the mixed gas. The controller is communicatively connected to the oxygen concentration sensor, the first pressure reducing valve, the second pressure reducing valve, the first solenoid valve, and the second solenoid valve, respectively. The controller is used to adjust the opening degree of the first solenoid valve and the second solenoid valve based on the oxygen concentration information in the mixed gas and the preset output target oxygen concentration.
6. The oxygen generating system of claim 5, wherein, The controller is also communicatively connected to the control valve and is used to control the control valve to switch the corresponding path according to the operating status of the oxygen generating device.
7. The oxygen generating system of claim 2, wherein, The oxygen generation system also includes: A filter, connected to the compressor, for filtering the incoming air; A flow meter and a pressure gauge are respectively installed in the passage between the compressor and the control valve.
8. The oxygen generation system according to claim 1, characterized in that, A first one-way valve is provided on the passageway between the oxygen port of the first molecular sieve and the oxygen collection device. A second one-way valve is provided on the passageway between the oxygen port of the second molecular sieve and the oxygen collection device.
9. An oxygen supply system characterized by comprising: Includes the oxygen generation system as described in any one of claims 1 to 8.
10. The oxygen supply system according to claim 9, characterized in that, The oxygen supply system also includes a mask, which is connected to the outlet port of the gas mixing device.