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Variable volume phase balance measurement device for multicomponent gas hydrate

A measuring device and hydrate technology, which is applied in the fields of analyzing materials, fuel oil testing, instruments, etc., can solve the problems of invisible experimental process and manual adjustment of volume changes, so as to improve reliability, improve accuracy, and reduce experimental errors. Effect

Inactive Publication Date: 2019-03-22
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a multi-component gas hydrate variable volume phase equilibrium measurement device in view of the defects in the prior art that the volume change of the reactor relies on manual adjustment and the experimental process is invisible

Method used

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  • Variable volume phase balance measurement device for multicomponent gas hydrate
  • Variable volume phase balance measurement device for multicomponent gas hydrate

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specific Embodiment approach

[0034] Specific embodiments, the present invention provides a multi-component gas hydrate variable volume phase equilibrium measurement device, combined with figure 1 shown, including variable volume reactor 1,

[0035] The variable volume reactor 1 includes a high-pressure resistant transparent inner cylinder 11, an insulating layer 12, a stainless steel jacket 13, a servo motor 14, a ball screw 15 and an adjustable plunger 16,

[0036] The high-pressure-resistant transparent inner cylinder 11 is located in the inner cavity of the stainless steel jacket 13 and arranged coaxially with it. The inner wall of the stainless steel jacket 13 is attached with an insulation layer 12, and the water circulation interlayer 17 is between the insulation layer 12 and the high-pressure-resistant transparent inner cylinder 11;

[0037] The adjustable plunger 16 enters the high-pressure resistant transparent inner cylinder 11 from the bottom of the stainless steel jacket 13, and the servo moto...

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Abstract

The invention relates to a variable volume phase balance measurement device for multicomponent gas hydrate. The variable volume phase balance measurement device comprises a variable volume reactor, wherein a high pressure-resisting transparent inner cylinder of the variable volume reactor is positioned in an inner cavity of a stainless steel jacket and is coaxial with the inner cavity; a heat insulating layer is attached to the inner wall of the stainless steel jacket; a water circulation interlayer is arranged between the heat insulating layer and the high pressure-resisting transparent innercylinder; an adjustable plunger piston enters the inner part of the high pressure-resisting transparent inner cylinder through the bottom of the stainless steel jacket; a servo motor drives the adjustable plunger piston to vertically move in the high pressure-resisting transparent inner cylinder through a ball screw; a gas pipeline, a water injection pipeline and a pressure monitoring pipeline are arranged on an upper cover of the stainless steel jacket; the three pipelines are respectively communicated with the high pressure-resisting transparent inner cylinder; the side wall of the stainless steel jacket is uniformly provided with four visual windows along a circumferential direction. The variable volume phase balance measurement device disclosed by the invention can realize phase balance measurement of the gas hydrate under the variable volume condition and improves the reliability of phase balance measurement.

Description

technical field [0001] The invention relates to the technical field of gas hydrate phase balance measurement, in particular to a multi-component gas hydrate variable volume phase balance measurement device. Background technique [0002] Gas is a kind of unconventional natural gas that is generated during coal formation and exists in coal bodies. High gas, coal and gas outburst mines pose a serious threat to the safety of coal mine production. Realizing the efficient development and utilization of mine gas is beneficial to gas disaster prevention, ecological environmental protection and optimization of energy structure. Gas in coal seams is represented by CH 4 Mainly, another N 2 , O 2 , CO 2 And a small amount of inert gas and other components constitute a multi-component mixed gas. For different systems of gas, it is necessary to study the thermodynamic conditions of hydration, solidification, separation, storage and transportation. Among them, obtaining the gas hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/00G01N33/22
CPCG01N7/00G01N33/22
Inventor 张保勇于鳌洋张强吴琼高霞刘传海
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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