Improved high-pressure volumetric-method gas adsorption instrument coal sample tank

Abstract

The invention discloses an improved high-pressure volumetric-method gas adsorption instrument coal sample tank. The improved high-pressure volumetric-method gas adsorption instrument coal sample tank comprises a tank body; the tank body is of a column-shaped structure provided with an opening on the top; a heat preservation groove is arranged in the side wall of the tank body; a heat preservation material layer is arranged in the heat preservation groove; a heating resistance wire and a thermistor are arranged at the middle part of the tank body; the heating resistance wire and the thermistor are both connected with a temperature control device; the top of the tank body is provided with a coal sample tank upper cover; the coal sample tank upper cover is provided with a data transmission hole of a temperature probe, and a pressure controlled switch valve. The heating resistance wire and the thermistor are arranged in the coal sample tank body, so that extra equipment is reduced, and manpower cost is reduced; temperature can be set based on different requirements of experiments on the temperature; heating is quick; heat preservation effect is excellent; temperature is stable; electricity is saved; and manpower resource is saved; influences of temperature fluctuation on experiments can be reduced effectively; the improved high-pressure volumetric-method gas adsorption instrument coal sample tank is simple in structure, low in cost, and excellent in application effect.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to an improved coal sample tank for a high-pressure capacity fagas adsorption instrument. Background technique [0002] At present, gas accidents are still an important threat to the safe production process of coal mines. Determination of some basic parameters of coal mines is an effective means to predict the gas content and pressure of coal mines to determine the gas hazard level. Among them, testing the adsorption constant of coal samples is an important A commonly used and effective means. When carrying out the coal sample adsorption constant determination experiment, need to use the high pressure capacity method gas adsorption instrument. When analyzing a coal sample, it is necessary to inject a certain pressure of gas into the coal sample and keep it at a certain temperature to reach adsorption equilibrium. This process generally takes more than 8 hours. The c...

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Problems solved by technology

Such a constant temperature method leads to a large amount of manpower and financial resources consumption. First, keeping the constant temperature water bath in operation will greatly increase the power consumption of the experiment.

Moreover, the instability of the temperature when the constant temperature water bath is working will also lead to errors in the experimental results.

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