Sampling device and method for low-water level shallow-liquid level high-temperature hot spring gas

Abstract

The invention provides a sampling device and a sampling method for low-water level shallow-liquid level high-temperature hot spring gas. The sampling device comprises three parts, i.e., gas-liquid capture, gas-liquid separation and gas collection; during gas-liquid capture, shallow hot spring water is utilized to seal a gas-collecting hood so as to ensure the purity of a sample; vacuum is achieved through an adjusting handle, gas and liquid are collected, flow direction of the gas and liquid is controlled by using valves, and therefore, rapid gas-liquid separation and sampling of low-water level shallow-liquid level hot spring gas are realized; gas is collected by using the method of gas collection through draining. According to the invention, the length of rubber hoses which are used for connecting every part of the sampling device can be adjusted, and the rubber hoses are laid according to landforms, so the sampling device has a wide applicable scope; no extra power is needed, the device is convenient to carry, a processing process for the device is simple and costs little, and therefore, the device has a good popularization prospect.

Description

technical field [0001] The invention relates to the technical field of collecting and preprocessing research objects in the fields of natural gas geochemistry and fluid geochemistry, in particular to a gas-liquid rapid separation device and method for field underground sampling and gas-liquid separation technology. Background technique [0002] At present, the drainage gas collection method is generally used in China to collect hot spring gas. The basic principle is as follows: Figure 5 As shown, in order to achieve good results and ensure that the hot spring gas is not polluted by the atmosphere, the following conditions must be met: first, the height difference h1 between the hot spring liquid level 501 and the water storage tank liquid level 502 must be greater than 0, so as to ensure that the hot spring bubbles follow the hot spring The water flows smoothly; secondly, the height difference h2 between the liquid level in the hot spring and the bottom of the hot spring mus...

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Problems solved by technology

[0007] In order to solve the problems encountered in the sampling of hot spring gas-liquid mixture under the condition of low water level and shallow liquid surface in the prior art, the present invention provides a portable hot spring gas and hot spring water that realizes rapid separation and ensures that the hot spring gas is not polluted by the atmosphere. device

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