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Safety production power generation technology by unstable gas source

A technology for safe production and gas, applied in gas emission, safety devices, gaseous engine fuel, etc., can solve the problems of wasting resources and polluting the environment, and achieve the effect of stable gas source

Inactive Publication Date: 2011-08-17
山东新矿赵官能源有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above two technologies are that they are only applicable to mines with high-concentration gas and stable gas source, especially the gas with a concentration of more than 16% can be used for power generation, and when the gas concentration is lower than 9%, it cannot be used for power generation. It can only be released into the atmosphere, which not only pollutes the environment, but also wastes resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] The gas power generation process of the unstable gas source of the present invention is as follows: underground drainage branch pipeline→underground drainage main pipeline→surface gas drainage station→air intake before generator set→diesel supply system→generator set.

[0019] Power generation requirements: the gas concentration is above 5%, the pipeline pressure is maintained between 55-65MPa, the small circulation is properly adjusted when the pipeline pressure is lower than 55MPa, the mixing volume accounts for more than 70% of the total pipeline flow, and the inlet pressure of the generator is 3- 10KPa, the generating power is 450-480KWh.

[0020] 1. Downhole drainage branch pipeline

[0021] A gas flow meter and a butterfly valve to control the gas source are installed on the downhole branch pipeline. Connect the gas pipeline from (coal seam hole and high-level hole), and connect it to the main pipeline through butterfly valve control and detection of gas flow.

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PUM

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Abstract

The invention discloses a safety production power generation technology by an unstable gas source. A mode of combing underground gas extraction by sources and the front gas inlet of a mine generator set with gas ignition by a small quantity of diesel oil via the generator set is adopted, and the gas with an unstable concentration can be used for ensuring that the generator set can normally operate. A gas source pipeline is improved, the underground air source is divided into a main gas source (main pipeline) and an assistant gas source, thus the gas source is stable. Along with the continuousexploitation of the mine, the concentration of the extracted gas is continuously lowered. When the concentration is 5-9%, the diesel oil ignition technology is adopted, and the low-concentration gas can be fully utilized.

Description

technical field [0001] The invention relates to the comprehensive utilization of low-concentration gas, especially low-concentration gas power generation from unstable gas sources. Background technique [0002] Gas, in the coal industry, refers to coalbed methane or mine gas. Gas is a colorless, tasteless, odorless gas with a relative density of 0.554 to air. Under standard conditions, the density of gas is 0.716kg. The permeability of gas is equal to that of air. It is 1.6 times that of the gas, it is difficult to dissolve in water, it does not support combustion and cannot maintain breathing. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen, and can burn or explode. Gas exists in free state and sorption state in coal body or surrounding rock. When the oxygen concentration in the air reaches 10%, if the gas concentration is between 5-16%, an explosion will occur, and when the gas concentration is around 30%, it can burn quietl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00F02B43/10F02B63/04
CPCY02T10/32Y02T10/30
Inventor 何希霖刘永禄湛厚星张胜文高明涛陈民刘德春
Owner 山东新矿赵官能源有限责任公司
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