Oil hydraulic type piston oil-free extra-high pressure air compressor

Abstract

The invention discloses an oil hydraulic type piston oil-free extra-high pressure air compressor which is characterized by comprising two oil-free cylinders, an oil hydraulic cylinder and an oil supply system, wherein the oil hydraulic cylinder is positioned between the two oil-free cylinders; the oil hydraulic cylinder and the oil-free cylinders are sealed by an oil seal lining; a piston in the oil hydraulic cylinder is connected with pistons in the oil-free cylinders by a piston rod; and the oil supply system is communicated with the oil hydraulic cylinder. The invention has the advantages of small size, simple result, reliability, energy saving, no vibration, no oil consumption, no medium pollution, strong seal effect, long service life of seal elements, low noise, high pressure, and the like and is especially suitable for an oil-free high-pressure air vehicle gas filling station.

Description

technical field [0001] The invention relates to an air compressor for compressing various gases, in particular to an oil-pressure piston oil-free ultra-high pressure air compressor without lubricating oil, which belongs to the technical field of compressors. Background technique [0002] At present, the whole world is advocating clean cars, clean energy, energy saving and carbon reduction, and the air-energy engine has begun to be put into operation in the market, which has played a role model for green energy and energy conservation, and has greatly promoted the formation of a new model of energy revolution. , In addition, the world's demand for high-pressure gas filling stations for oil-free vehicles is more urgent. At present, only mechanical piston high-pressure machines are used in China. The medium of this high-pressure machine is oily, and the noise pollution is serious. It cannot meet the existing requirements: 1. The medium is oil-free; 2. The noise is less than 70d...

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Problems solved by technology

[0002] At present, the whole world is advocating clean cars, clean energy, energy saving and carbon reduction, and the air-energy engine has begun to be put into operation in the market, which has played a role model for green energy and energy conservation, and has greatly promoted the formation of a new model of energy revolution. , In addition, the world's demand for high-pressure gas stations for oil-free vehicles is more urgent. At present, only mechanical piston high-pressure machines are used in China. The medium of this high-pressure machine is oily, and the noise pollution is serious. It cannot meet the existing requirements: 1. The medium is oil-free; 2. The noise is less than 70d(A); 3. The energy consumption is low; 4. The pressure is as high as 650kg.

[0003] In addition, the problems of the current general-purpose mechanical piston compressors are mainly manifested in that the lateral force caused by the rotary motion of the crankshaft and connecting rod is the main factor that endangers the quality of the machine, and the volume is large, the structure is complex, the sealing is poor, and the Power saving, high oil consumption, oily medium (if you choose high-pressure degreasing, the degreasing method is more complicated and expensive), many wearing parts, high maintenance cost, and large noise pollution

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