Compressors for CNG vehicle refueling compressor stations

As a part of CNG vehicle refueling compressor stations these compressors are designed for compression of natural gas and refueling of vehicles with this gas.

Design:

• reciprocating on opposite base 4GМ2.5 and 4GМ2.5U;
• reciprocating on W-base 6GSh1.6.

Lubrication system:

• opposite compressors: the reciprocating mecha¬nism is lubricated by oil circulated under pressure; the cylinders and rod seals are forced lubricated under pressure being produced by plunger pump;
• compressor on W-base: reciprocating mechanism is lubricated by oil spraying; cylinders are not lubricated.

Intra stages the gas is cooled in air cooler being integrated in CNG vehicle refueling compressor stations. The oil is also cooled by air cooler through intermediate heat transfer agent (antifreezing agent).

The control system of CNG vehicle refueling com¬pressor stations ensures the monitoring of parameters and control of the compressors.