Medical standard for silent and oil-free air compressor

What is a medical silent oil-free air compressor

refers to the kind of air compressor suitable for use in medical and environmental health conditions, requiring precision, reliability, environmental protection and quiet, compressed air fresh and clean, the output of the gas can be directly in contact with the human body. Displacement in less than 1m 3/min medical air compressor is mostly micro-screw reciprocating air compressor, also known as silent oil-free air compressor, foreign also called micro-screw swing air compressor.

Medical silent oil-free air compressor technical indicators

higher gas production: refers to the compressed air displacement per unit power, which is a very important indicator. Users should make more comparisons when choosing. The higher gas production under the same power indicates that the machine design is more scientific, more environmentally friendly and energy-saving, and the stability and durability will be better.

Exhaust pressure: According to industry standards, it should reach 7Bar, most of which are 8Bar, but there are few manufacturers that can adjust 0-8Bar like silent oil-free air compressors produced by Xinran oil-free air compressors.

Air drying and cleanliness: the application of oil-free lubrication technology, as well as the treatment of the inner wall of the compressor air chamber and the spray treatment technology inside the air tank, coupled with a good air filter and oil-water separator, to ensure that the output air is cleaner and fresher. If the installation of non-thermal regeneration dryer, but also to ensure that the air dry without water, while requiring the output of the gas can be directly in contact with the human body. The following medical air compressors are equipped with dried air quality for users' reference: dew point ≤-40 ℃, ≤-70 ℃, air cleanliness (particle) ≤ 0.05 μ, air dryness (moisture content) ≤ 0.05 ppm.

Lower noise control: The following is a visual description of noise

the medical air compressor must be controlled within 60 decibels, and the sound of the general household air-conditioning compressor (about 55 decibels), medical staff will not feel uncomfortable working in such an environment. In view of the relatively quiet environment required by the hospital, air compressors with noise higher than 60 decibels cannot be used in hospitals.

Distribution of domestic manufacturers of medical mute oil-free air compressors: This low-noise and high-precision air compressor was first born in Europe. Because of its environmental protection and energy saving, ultra-low noise, no oily substances, compressed air quality is fresh, clean, Safe and durable, it has been widely promoted and applied in European and American countries.

In 2002, Xinran Compressor Company took the lead in introducing silent air compressor production technology from Germany, and obtained a number of national invention patents to provide technical support for domestic silent oil-free air compressor manufacturers. It was quickly promoted in China to get rid of The embarrassing situation of relying on imports. It seems that there are many manufacturers of this kind of air compressor in the market, but in fact, most of them are assembly enterprises. There are only a handful of manufacturers that can really produce this kind of compressor host, mainly distributed in Shanghai.

Considerations for Selection

1. Exhaust pressure

the greater the discharge pressure of the compressor, the more energy consumption. The sum of the use pressure, pipeline resistance loss and the pressure drop of the supporting equipment is determined as the lower limit of the rated exhaust pressure of the screw air compressor. Under normal circumstances, the path of the gas pipeline should be selected larger. In order to reduce resistance loss and achieve the purpose of reducing energy consumption in long-term operation. The greater the discharge pressure of the compressor, the more energy consumption. So do not use high discharge pressure compressor

2. Exhaust volume

calculate the actual total gas consumption ξ 1.1-1.2 coefficient, as the selection of exhaust volume of the model, such as the selection is too low, can not reach the specified value of gas equipment, the selection is too large, resulting in load reduction energy consumption, load reduction operation is not economical. At the same time, the purchase cost of large displacement screw air compressor is higher.

3. Compressed air quality

according to the industry gas equipment on the compressor gas requirements, should be appropriate to buy screw air compressor and supporting equipment. The following points need to be considered:

1) To reduce the oil content in the compressed gas, a degreasing purifier can be used. If the treatment index is high, multi-stage treatment can be selected.

2) To reduce the water content in the compressed gas, water removal equipment can be used. [4] 7 precautions for daily use of oil-free air compressors:

1. When the compressor is shut down due to power failure, in order to prevent the compressor from starting under pressure, the power-off handle of the pressure switch should be pulled when the compressor is turned on again to drain the air in the pipeline and restart the compressor.

2. The user must set the compressor protective grounding wire to ensure that all metal shells of the compressor are in good contact with the earth, and the grounding resistance should meet the national standards.

3. When the compressor finds serious air leakage, abnormal noise and peculiar smell, it should stop running immediately, and find out the cause and eliminate the fault before it can run again.

4. The air compressor is an oil-free air compressor, and the friction parts are self-lubricating, so do not add lubricating oil.

5. The air compressor must be fixed on a ventilated, stable and solid working surface. In order to reduce noise and vibration, there must be a shock absorber.

6. The filter medium (foam sponge or felt) in the filter should be cleaned every three months, blowing off the dust on the medium, if necessary, wash with water, dry and reuse.

7. The compressor shall be maintained at least once a quarter. The maintenance includes thoroughly removing dust and dirt from the outside of the compressor, checking and fastening the connecting bolts of the compressor, checking whether the grounding wire is in good condition, and checking whether the electrical circuit is aging or damaged.