Mini air pump compressors are widely used in the oxygen generator.

Background information

Oxygen is a colorless and odorless gas. It is an important substance for the survival of the human body and an important substance for the survival of other animals and plants. Without oxygen, nature will be lifeless, and its importance is just like water. With the continuous improvement of people’s living standards, the demand for health is gradually increasing, and oxygen inhalation will gradually become an important means of family and community rehabilitation. Therefore, So all kinds of oxygen generator came into being, and its application is very extensive. All walks of life are inseparable from oxygen, including medical care and beauty care.

Oxygen Concentrator Introduction

The principle of oxygen generation probably has: molecular sieve principles, polymer oxygen-enriched membrane principles, electrolytic water principles, and chemical reaction oxygen generation principles. This article focuses on the application analysis of molecular sieve principle oxygen production. Molecular sieve oxygen production is a physical method to directly extract oxygen from the air, it’s fresh and natural. Therefore, there are many medical and household oxygen generators that adopt the principle of molecular sieve oxygen generation.

Principle of molecular sieve oxygen production: use molecular sieve physical adsorption and desorption technology. The oxygen concentrator is filled with molecular sieves, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. The molecular sieve discharges the adsorbed nitrogen back into the ambient air during decompression, and can absorb nitrogen and produce oxygen during the next pressurization. The whole process is a periodic dynamic cycle process, and the molecular sieve does not consume.

Application analysis of mini air pump compressor

The micro air pump provides power for the entire molecular sieve oxygen production system, which is the key to ensure the stable and efficient oxygen production of the oxygen production system. Oxygen generators choose different air pumps according to different conditions. In the medical molecular sieve oxygen generation system, the oxygen output flow is about 1-2m3/h, and the oxygen output pressure is about 200-400KPa. Generally, a piston pump with a larger output flow and pressure is selected. or diaphragm pumps. The oxygen output of the household oxygen generator is about 3-10L/min, and the oxygen output pressure is about 30-60KPa. Generally, a micro-diaphragm pump with a small output flow and pressure and low noise is selected.

Application difficulties:

1. The molecular sieve type uses pressurization to separate the gas, and the mini air pump compressors must be able to work with back pressure for a long time and maintain good stability;

2. Oxygen supply is a continuous process, and the mini air pump compressors may be in a continuous working state, which has high requirements on the lifetime of the pump;

3. The oxygen generator is a medical and health care product, and the whole system needs to operate with low noise.

Product Solutions

Diaphragm pumps recommendation:

D35 mini air pump compressor

Brief description: DC brushless motor, power supply voltage DC12/24V, wetted material: FiberreinforcedPA6 and EPDM rubber, various speed control versions (knob, frequency and touch speed control type), output pressure range (relative pressure) 40kPa ~130kPa, no-load average flow range: 2.4/min~5L/min (tested by soap film flowmeter), the exhaust port can carry a large load.

Advantages: multi-functional speed control, long lifespan (the maximum load continuous working lifetime of the premium version can reach more than 10000h), compatible with corrosive and complex medium, low noise, pneumatic connectors, etc.

D50 mini air pump compressor

Brief description: DC brushless motor, power supply voltage DC24V, wetted material: Fiber reinforced PA6 and EPDM rubber, multi-function speed control (touch, voltage and frequency speed control, 485 communication), output pressure range (relative pressure) 85kPa~120kPa , No-load average flow range: 6.8/min~15L/min (tested by soap film flowmeter), the exhaust port can carry a large load.

Advantages: long lifetime (the continuous working lifespan of the premium version can reach more than 9500h), high pressure and large flow, multi-function speed control.

D60 mini air pump compressor

Brief description: DC brushless motor, power supply voltage DC24V, wetted material: Fiber reinforced PA6 and EPDM rubber, output pressure (relative pressure) 100kPa,The average flow rate(no-load) is greater than 18L/min (tested by soap film flowmeter).

Advantages: high pressure and large flow, double chamber pump.

Piston pumps recommendation:

D55L mini air pump compressor

Brief description: AC motor, power supply voltage AC220V, wetted materials: aluminum, carbon steel, PTFE, stainless steel, copper, maximum safe output pressure (relative pressure) 150kPa, The average flow rate(no-load) is greater than 45L/min.

Advantages: small volume, high pressure and large flow.

D69 mini air pump compressor

Brief description: AC motor, power supply voltage AC220V, wetted materials: aluminum, carbon steel, PTFE, stainless steel, copper, maximum safe output pressure (relative pressure) 250kPa, The average flow rate(no-load) is greater than 82L/min.

Advantages: high pressure and large flow.