Closed circulation system for improving gas drainage pump running efficiency

Abstract

The invention discloses a closed circulation system for improving gas drainage pump running efficiency. A liquid inlet of a pneumatic diaphragm pump is connected with a liquid outlet of a macromolecule drag reduction solution tank, and a liquid outlet pipe of the pneumatic diaphragm pump is led into a circulation water pool. The macromolecule drag reduction solution tank is internally provided with a pneumatic stirrer, and a feeding hopper is arranged at the top. A liquid outlet of a sinking pump is connected with a liquid inlet of the macromolecule drag reduction solution tank and a liquid inlet of a gas drainage pump through a tee joint, and a liquid drainage pipe of the gas drainage pump is connected into the circulation water pool. The pneumatic stirrer and the pneumatic diaphragm pump run at a high speed so that a macromolecule drag reduction solution can be fed into the circulation water pool after being evenly mixed; and meanwhile, a liquid outlet pipe of the sinking pump supplies water to the macromolecule drag reduction solution tank, a macromolecule drag reducer is added into the feeding hopper, and continuous liquid preparation and using after preparation instantly of the drag reduction solution can be achieved. The gas drainage pump uses the macromolecule drag reduction solution as a working medium, and the gas drainage pump running efficiency can be greatly improved. The system is simple in structure and convenient to operate, and drag reduction solution supply closed circulation is achieved.

Description

technical field [0001] The invention relates to a closed circulation system for improving the operation efficiency of a gas drainage pump, and is especially suitable for the gas drainage system of a mobile pumping station in a coal mine. Background technique [0002] "Coal Mine Gas Drainage Engineering Design Specifications" stipulates that high-gas mines or mines mining dangerous coal seams with coal and gas outbursts must establish a gas drainage system. As the power source of the gas drainage system, the gas drainage pump plays an important role in the efficient and safe production of the mine. However, the gas drainage pump has low operating efficiency and high energy consumption. The actual efficiency is only 10-40%, but it accounts for 1 / 4 of the total electricity consumption of coal mines. This problem is extremely incompatible with the country's requirements for energy conservation and emission reduction in coal mines and my country's current energy shortage. [00...

AI Technical Summary

Problems solved by technology

However, the polymer drag reducer for mining has poor solubility and a large amount, and it needs to be fully stirred to achieve a good drag reduction effect, and it needs to be added quantitatively and regularly

The existing device cannot be fully connected with the coal mine underground pumping station system, and cannot realize the continuous dosing of the drag reducing agent and the requirements of ready-to-use, resulting in cumbersome working procedures and high consumption of manpower and material resources, which is not conducive to the popularization and application of this technology

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