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Medical oxygen generator with low oxygen supply interval and oxygen generation method

An oxygen generator and oxygen supply technology, applied in separation methods, chemical instruments and methods, respirator, etc., can solve problems such as pressure loss that cannot be well matched, incomplete nitrogen discharge, and difference in airflow distribution.

Active Publication Date: 2021-03-30
上海扶弘康复设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent uses a single-inclination inner cylinder, and the change of the flow section cannot well match the above-mentioned pressure loss caused by nitrogen adsorption.
[0008] In addition, the tank structure of the above patent makes the air inlet and outlet ports located below the tank body, while the vacuum port is located on the tank top, which leads to incomplete nitrogen discharge during the reverse discharge process , and in the pressure equalization process after reverse discharge, it is difficult for the high oxygen-containing pressure equalization gas to enter the outer adsorbent area, which leads to the difference in bed performance
[0009]On the other hand, in the above-mentioned patent, due to the existence of the inner cylinder, the upstream adsorbent adopts a circular arrangement. In this arrangement, the offset air inlet It is very easy to cause differences in the distribution of gas flow in the adsorbent layer, thereby affecting the overall utilization efficiency of the adsorbent

Method used

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  • Medical oxygen generator with low oxygen supply interval and oxygen generation method
  • Medical oxygen generator with low oxygen supply interval and oxygen generation method
  • Medical oxygen generator with low oxygen supply interval and oxygen generation method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] see Figure 1-8, providing a medical oxygen concentrator with a low oxygen supply interval, comprising at least two adsorption tanks filled with adsorbents, gas pipelines connected to the adsorption tanks, and configured on the gas pipelines for controlling gas Some control valves of the flow path; the adsorption tank has a cylindrical tank body 1, the bottom of the tank body 1 is provided with an air inlet 104 coaxial with the tank body 1, and the upper end of the tank body 1 is provided with There is a removable cover 2, the cover 2 is provided with an air outlet 201 coaxial with the cover 2, and a connecting pipe located inside the cover 2 and communicating with the air outlet 201 202: Inside the tank body 1, an air distribution device 6 is also provided below the adsorbent layer.

[0047] Wherein, the tank body 1 includes a cylindrical cylinder wall, an annular bottom plate 101 connected to the bottom edge of the cylinder wall, connected to the inner edge of the an...

Embodiment 2

[0063] This embodiment provides a method of using the medical oxygen generator with extremely low oxygen supply interval described in Embodiment 1 to obtain high-oxygen air. The left reverse discharge valve 1001, the right air outlet valve 1404, and the pressure equalizing valve 1501 are closed, the left air inlet valve 903 and the left air outlet valve 1403 are opened, and the high-pressure air enters the air inlet cavity through the air inlet 104 at the bottom of the left adsorption tank. The air pressure on the outside of the closing plate 501 is greater than that on the inside, forcing the glue valve 7 on the closing plate 501 to close, thereby closing the through hole 502; the air flow then swirls through the swirling blades, thereby being evenly distributed to the outer bottom plate 301, and then pass through the upstream section, midstream section and downstream section of the adsorbent layer and then discharge into the oxygen supply pipe 16 through the gas outlet 201; ...

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Abstract

The invention provides a medical oxygen generator with a low oxygen supply interval and an oxygen generation method. The oxygen generator comprises at least two adsorption tanks filled with adsorbents, a gas pipeline connected with the adsorption tanks, and a plurality of control valves arranged on the gas pipeline, the interior of each adsorption tank is divided into an upstream adsorbent layer,a middle adsorbent layer and a downstream adsorbent layer by a large conical cylinder and a small conical cylinder which are concentrically arranged and a positioning assembly arranged among or insidethe tank body, the large conical cylinder and the small conical cylinder, and the sizes of adsorbent particles of the three adsorbent layers are reduced in a gradient manner; the large conical cylinder and the small conical cylinder are both of an inverted frustum structure, the inclination of the large conical barrel is larger than that of the small conical barrel, and therefore the upstream section and the midstream section can compensate for pressure drop caused by nitrogen adsorption through changes of flow sections, and the compensation rate of the upstream section is larger than that ofthe midstream section.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical oxygen generator with a low oxygen supply interval and an oxygen generator method. Background technique [0002] Oxygen-enriched air inhalation therapy is an important means in the treatment of cardiovascular, cerebrovascular and respiratory diseases. Two-tower pressure swing adsorption oxygen production (that is, PSA oxygen production), is a kind of air as raw material, molecular sieve, etc. The nitrogen adsorbed by the adsorbent completes the oxygen production process of adsorbent regeneration. [0003] Different from the cryogenic oxygen production process, the PSA oxygen production process relies on the difference in the adsorption properties of molecular sieve adsorbents for nitrogen and oxygen under high pressure. Since the proportion of nitrogen in the air is much greater than that of oxygen, when the air flow penetrates the adsorbent layer, as the nitrogen is continuously a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/10B01D53/04
CPCA61M16/1075B01D53/04B01D53/0407B01D2256/12
Inventor 尚铁军
Owner 上海扶弘康复设备有限公司