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Underground Coal Gasifier and Method for Determining Combustion State of Furnace

A technology of underground gasification and combustion state, applied in coal gasification, underground mining, earthwork drilling and other directions, can solve the problem of inability to accurately judge the combustion state, and achieve the effect of high accuracy and timely judgment

Active Publication Date: 2018-08-24
ENN SCI & TECH DEV
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

[0008] The main purpose of the present invention is to provide an underground gasifier to solve the problem that the existing underground gasifier cannot accurately judge its combustion status

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  • Underground Coal Gasifier and Method for Determining Combustion State of Furnace
  • Underground Coal Gasifier and Method for Determining Combustion State of Furnace
  • Underground Coal Gasifier and Method for Determining Combustion State of Furnace

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Embodiment Construction

[0034] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] figure 1 and figure 2 It is a schematic diagram of the surface structure of the underground coal gasifier of the first embodiment of the present invention. see figure 1 , the underground coal gasification process is to drill holes from the ground to the coal seam, one of which is the air inlet hole 1, and the other hole is the air outlet hole 2, and coal seam fracturing and other methods are used to form gasification channels in the two holes (not shown). After ignition, the gasification agent (air, water vapor, oxygen-enriched air, etc.) Convey from air outlet 2 to the ground. During the gasification process, the gasification channel expands continuously with the combustion of the coal seam, forming a burn-out zone 3 .

[0036] In addition to the above-mentioned air inlet 1, air outlet 2, and air flow c...

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Abstract

The invention discloses an underground coal gasifier and a gasifier combustion state determination method. The underground coal gasifier comprises a gas inlet, a gas outlet and a gas flow passage formed between the gas inlet and the gas outlet. The underground coal gasifier further comprises a plurality of measuring holes formed in a preset range in the vertical direction of the gas inlet and gas outlet connecting line, and moreover, the measuring holes are communicated with the coal layer of the underground gasifier, and the temperature, pressure and sample ingredients of the underground coal gasifier are monitored through the measuring holes. The underground coal gasifier is capable of monitoring the temperature, sample ingredients and pressure data of the underground coal gasifier in real time, and therefore, the inside combustion state can be judged more timely and precisely.

Description

technical field [0001] The invention relates to the field of underground coal gasification, in particular to an underground coal gasification furnace and a method for determining the combustion state of the furnace. Background technique [0002] As a rising coal gasification technology, underground coal gasification has attracted extensive attention due to its economy, environmental protection and high efficiency. However, there has been a lack of relevant reasonable methods for detecting the temperature, pressure, and components in the underground gasifier during the underground gasification process. [0003] The prior art proposes some technical solutions for judging the combustion status of the underground gasifier. For example, the prior art 1 and 2 described below. [0004] Existing technology 1: patent 200910150724.3, a method, system and device for determining the combustion state of an underground coal gasifier, which is a method of setting radon measuring points o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/295
CPCE21B43/243E21B43/295
Inventor 刘刚刘洪涛李金国
Owner ENN SCI & TECH DEV
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