Authors: B.L. Gerike, Yu.M. Lekontsev, A.V. Novik

Title of the article: Air inflow compensators in captured methane mine pipelines

Year: 2024, Issue: 3, Pages: 22-32

Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)

Index UDK: 621.6.07

DOI: 10.26730/1816-4528-2024-3-22-32

Abstract: To compensate for the vacuum loss in the gas exhaust lines during methane accumulation from sloping formations, the designs of vacuum loss compensators (VLC) are proposed, for the study of the performance of which two laboratory stands have been developed to simulate a once-through scheme of an air intake compensation unit and compensation due to the installation of an S-shaped insert, the design of which is described in the article. In addition, the article sets out the research program, which sets out the sequence of work on the stand, as well as the methodology and algorithm for their implementation, indicating the requirements for equipment, measuring and recording equipment, the volume and sequence of work. The results of bench studies have shown the effectiveness of once-through compensators, while the efficiency of once-through VLCs is characterized by the following indicators: with an increase in power by about 15%, it is possible to increase the vacuum in the outlet gas pipeline by an average of 1.4 times. The results of the bench studies served as the basis for determining the design (diameters and number of blades of the wind and turbo wheels of the compensator, as well as the angles of their installation relative to the normal component of the gas-air flow velocity) and mode (required vacuum pressure and required air flow velocity in the working) parameters of vacuum loss compensators

Key words: methane gas-air mixture underground degassing pipeline vacuum losses pressure air-loss compensator wind-wheel turbo-wheel

Receiving date: 28.02.2024

Approval date: 15.04.2024

Publication date: 12.09.2024

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