Air-cooled compressor for shale gas recovery

Abstract

The invention discloses an air-cooled compressor for shale gas recovery. The air-cooled compressor comprises a compression device and an oil-gas separation device; the compression device comprises a shell; a compression mechanism is fixedly installed in the shell, and the compression mechanism comprises a compression rod, a sealing ring, a rotating shaft and a piston; the oil-gas separation devicecomprises a cylinder body; a piston cylinder is connected to the inner side wall of the cylinder body in a clearance mode; a crankshaft is mounted on the right side of the outer side wall of the piston rod and penetrates through the right side of the outer side wall of the cylinder body; a crankshaft connecting rod is mounted at the other end of the crankshaft; a second motor is mounted at the other end of the crankshaft connecting rod; an air inlet valve is mounted on the left side of the outer side wall of the cylinder body; and an air outlet pipe communicates with an air inlet valve. The air-cooled compressor for shale gas recovery can be used for carrying out simultaneous or continuous compression and separation, the recovery efficiency of shale gas can be greatly improved, the cost is reduced, and the air-cooled compressor is safe and reliable and can be operated for a long time.

Description

technical field [0001] The invention relates to the technical field of mechanical devices, in particular to an air-cooled shale gas recovery compressor. Background technique [0002] Shale gas is deep and has the characteristics of self-generation and self-storage. Shale is both source rock and storage rock. Shale gas is a type of natural gas, but the concepts of the two are not at the same level. Shale gas refers to the accumulation of natural gas mainly located in dark mud shale or high-carbon mud shale, mainly in the state of adsorption or free. In a sense, the formation of shale gas reservoirs is the result of large-scale retention of natural gas in source rocks. The exploitation of shale gas is relatively difficult. When separating or recovering some poor-quality shale gas after extraction, it is necessary to separate its components (oil, gas, dark mud shale or high-carbon mud). magazines such as shale) for separation, there is still a lack of effective compression s...

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Problems solved by technology

[0006] However, the current compression and separation equipment has the following disadvantages in use: 1. The lack of equipment that can simultaneously or continuously compress and separate, resulting in low efficiency and high cost of shale gas recovery; 2. The compression cylinder of the compression device cannot be ensured Internal sealing, for dangerous gases such as shale gas, it is necessary to ensure the internal sealing of the compression cylinder to ensure internal safety, so it needs to be improved; 3. It is impossible to dissipate heat from the compression cylinder and motor of the compression device, and the heat dissipation effect is poor. Therefore, improvement is still needed; 4. Poor filtering effect during oil and gas separation leads to the discharge of partially vaporized oil and affects the atmospheric environment; 5. The pressure in the cylinder is not detected, resulting in excessive pressure in the cylinder and easy cylinder explosion

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