一种变压吸附分子筛制氧装置
By introducing a filtration and dehumidification system into the molecular sieve oxygen generator, the problem of molecular sieve collapse when exposed to water was solved, the purity and recovery rate of oxygen were improved, and the structure of the device was simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU AIR SEPARATION TECH EQUIP MFG CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing molecular sieve oxygen generators suffer from zeolite molecular sieve structure collapse when exposed to water, resulting in reduced adsorption capacity, decreased oxygen purity and recovery rate, and a lack of air dehumidification treatment.
A molecular sieve oxygen generator was designed, which includes a filtration mechanism and a dehumidification box. The air is pretreated by a filter plate and a desiccant. A humidity sensor controls a solenoid valve to select either dehumidification or channel mode to prevent moisture from entering the molecular sieve.
It effectively prevents molecular sieves from collapsing when exposed to water, extends the desiccant replacement cycle, improves oxygen purity and recovery rate, and simplifies the device structure.
Smart Images
Figure CN224506659U_ABST
Abstract
Claims
1. A pressure swing adsorption molecular sieve oxygen generator, characterized in that, include: A molecular sieve oxygen generator body (100) is provided with a filter mechanism (200) to filter the oxygen inhaled into the molecular sieve oxygen generator body (100). An air outlet (120) is provided on the front side of the molecular sieve oxygen generator body (100), and an installation groove (110) is provided on the side of the molecular sieve oxygen generator body (100) away from the air outlet (120). The filtration mechanism (200) includes a filter box (210) slidably connected to the mounting groove (110). An air inlet (220) is provided on the outside of the filter box (210). A filter plate (230) is provided inside the air inlet (220). An air inlet pipe (250) is provided on one side of the filter plate (230). A dehumidification box (270) connected to the air inlet pipe (250) is installed inside the molecular sieve oxygen generator body (100). The dehumidification box (270) is connected to the air compressor inlet inside the molecular sieve oxygen generator body (100) through a pipe. The dehumidification box (270) is filled with desiccant.
2. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 1, wherein the at least one adsorption bed is a single adsorption bed. The filter plate (230) is inclined toward the air inlet (220), and there are two filter plates (230), with the filtration accuracy increasing sequentially.
3. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 1, wherein the at least one adsorption bed is a single adsorption bed. A solenoid valve (240) is fixedly connected inside the molecular sieve oxygen generator body (100). The air inlet pipe (250) is connected to the solenoid valve (240). The solenoid valve (240) is respectively provided with a dehumidification pipe (260) and a connecting pipe (280) that are connected to the dehumidification box (270) and the air compressor inlet.
4. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 3, wherein the first and second adsorption vessels are arranged in a parallel configuration. A humidity sensor is fixedly installed on the air inlet pipe (250), and the humidity sensor and the solenoid valve (240) are electrically connected to the controller of the molecular sieve oxygen generator body (100).
5. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 2, wherein the first and second adsorption vessels are arranged in a parallel configuration. Of the two inclined filter plates (230), the filter plate near the air inlet (220) is a coarse metal filter, and the other is a high-efficiency HEPA filter.
6. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 3, wherein the first and second adsorption vessels are arranged in a parallel configuration. A one-way valve is provided at the connection between the dehumidification pipe (260) and the dehumidification box (270) to prevent airflow from flowing back into the solenoid valve (240).
7. The pressure swing adsorption (PSA) oxygen generating apparatus of claim 4, wherein the first and second adsorption vessels are arranged in a parallel configuration. The controller has a preset humidity threshold; when the humidity sensor detects a value exceeding the threshold, the solenoid valve (240) switches to the dehumidification pipe (260); when it is below the threshold, it switches to the connecting pipe (280).
8. The pressure swing adsorption (PSA) oxygen generation plant as claimed in claim 1, wherein, The filter box (210) and the mounting groove (110) are provided with a sealing strip at the sliding connection, and the filter box (210) is provided with a handle for easy pulling on the outside.