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Solid-state fluidization mining jet flow recovery flow field detection experiment device and experiment method

A technology of solid-state fluidized mining and experimental equipment, which is applied in the direction of measuring equipment, fluid dynamics test, machine/structural component testing, etc., and can solve problems such as unclear mechanism of action

Pending Publication Date: 2022-03-11
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of solid-state fluidized mining jet recovery flow field detection experimental device and experimental method, which mainly solves the various factors (flow pressure, jet recovery port size) existing in the prior art in the hydrate solid-state fluidized production process The effect mechanism of the jet flow field in the downhole jet crushing cavity and the recovery flow field under jet excitation is not clear

Method used

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  • Solid-state fluidization mining jet flow recovery flow field detection experiment device and experiment method
  • Solid-state fluidization mining jet flow recovery flow field detection experiment device and experiment method
  • Solid-state fluidization mining jet flow recovery flow field detection experiment device and experiment method

Examples

Experimental program
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Effect test

Embodiment

[0037] like Figure 1 to Figure 8 As shown, an experimental device for detecting the flow field of jet recovery in solid-state fluidized mining includes a slurry prefabrication module, a centrifugal pump 4 whose liquid inlet is connected to the liquid outlet of the slurry prefabrication module through a pipeline, and the liquid inlet is connected to the centrifugal pump through a pipeline. 4 The jet recovery module 5, which is connected to the liquid outlet and is transparent as a whole, communicates with the jet recovery module 5 and the slurry prefabrication module through pipelines and is used for pressure relief. The overflow valve 16 is connected to the fluid inlet and outlet of the jet recovery module 5 through pipelines The liquid port is connected to the front sampling port 14 and the rear sampling port 15 for sampling, and the flow field detection and display module for detecting the liquid from the jet recovery module 5; the slurry prefabrication module includes a liq...

Embodiment 1

[0040] Single nozzle submerged jet experiment

[0041]Correctly connect the pipeline (only enable a single nozzle (d=4.0mm) to be placed on the symmetrical surface of the semicircular cavity, and arrange the recovery port remotely) and the link of the flow field detection and display module, and fill the crushing cavity with water;

[0042] Turn on the pump to circulate clean water between the overflow valve and the liquid storage tank, check for liquid leakage, adjust the pressure to 3MPa, close the valve to the liquid storage tank after stabilization, and open the valve to the jet recovery module;

[0043] After the pressure is stabilized, the image of the single nozzle jet flow field is taken, and the nozzle divergence angle, flow velocity data and streamline data are obtained through processing and analysis;

[0044] Change the pressure value to 5MPa, 7MPa, 9MPa and repeat the above steps,

[0045] Maintain the pressure at a specific value, change the size of the nozzle (...

Embodiment example 2

[0048] The structure and working principle of this embodiment are basically the same as that of Embodiment 1, the difference is that two nozzles are arranged in the circumferential direction or radial direction, and by changing the angle between the two nozzles in the circumferential direction or the distance between the two nozzles in the radial direction, the circumferential or radial Flow field data for an axial section. Find the influence law of the included angle and spacing on the flow field. Specific steps are as follows

[0049] Two jet nozzles of the same size are arranged in the same circle on the double-layer pipe,

[0050] Take the flow field image of the section where the nozzles are arranged, and obtain the velocity, energy distribution and streamline diagram of the flow field under the coupling action of the two nozzles;

[0051] Change the angle between the two nozzles, repeat the above experimental steps;

[0052] Arrange two nozzles along the same axis of ...

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Abstract

The invention discloses a solid fluidization mining jet flow recovery flow field detection experiment device which comprises a slurry prefabricating module, a centrifugal pump with a liquid inlet communicated with a liquid outlet of the slurry prefabricating module through a pipeline, and a jet flow recovery module with a liquid inlet communicated with a liquid outlet of the centrifugal pump through a pipeline and integrally transparent. The overflow valve is simultaneously communicated with the jet flow recovery module and the slurry prefabricating module through pipelines and is used for relieving pressure, the front-end sampling port and the rear-end sampling port are communicated with a liquid inlet and a liquid outlet of the jet flow recovery module through pipelines and are used for sampling, and the flow field detection display module is used for detecting liquid in the jet flow recovery module; according to the scheme, under the simplified condition, the device is closer to the actual working condition of hydrate solid-state fluidization mining, detection of jet flow and a recovery flow field by all influence factors is achieved by replacing the nozzles and the recovery ports with different hole diameters, and the device has very high practical value and popularization value.

Description

technical field [0001] The invention belongs to the technical field of hydrate mining, and in particular relates to an experimental device and an experimental method for detecting a flow field of solid-state fluidized mining jet recovery. Background technique [0002] Natural gas hydrate has become the most potential future energy source due to its wide distribution, large reserves and extremely high energy density. Judging from the trial mining of hydrates in my country's sea areas, more than 85% of the hydrates in the South my country Sea exist in non-diagenetic forms, which have the characteristics of shallow burial, weak cementation, no tight caprock, and easy fragmentation. The mining of non-diagenetic hydrates faces three major challenges in geology, equipment and environment, and the conventional hydrate mining methods are no longer applicable. For this reason, Academician Zhou Shouwei innovatively put forward the idea of ​​solid fluidized mining, and successfully im...

Claims

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Application Information

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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 王国荣刘小平钟林刘清友周守为余兴勇胡刚何玉发李清平付强李绪深方小宇邱顺佐方兴
Owner SOUTHWEST PETROLEUM UNIV
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