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Cyclone separator for natural gas hydrate exploitation silt

A cyclone separator and hydrate technology, which is applied in the direction of mining fluid, earthwork drilling, wellbore/well parts, etc., to achieve the effects of low processing cost, improved flow stability, and wide application range

Active Publication Date: 2019-03-19
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing hydrocyclones cannot meet the above requirements.

Method used

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  • Cyclone separator for natural gas hydrate exploitation silt
  • Cyclone separator for natural gas hydrate exploitation silt
  • Cyclone separator for natural gas hydrate exploitation silt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In order to improve the sediment separation efficiency in the process of natural gas hydrate exploitation, reduce the loss of natural gas hydrate and avoid the formation of air resistance in the separator by natural gas, this embodiment discloses a sediment cyclone separator for natural gas hydrate exploitation, specifically Organization see Figure 1-5 , the body of the cyclone separator includes a cylindrical shell 3 above and a conical shell 5 below, wherein the cylindrical shell is 285 mm high, the shell diameter is 250 mm, the conical shell is 463 mm high, and the cone angle is 15°. An overflow port 1 is provided on the top of the cylinder body 3, and a feed port 2 is provided on the side wall. The diameter of the overflow port is 70 mm, and the total length of the overflow pipe is 85 mm. is 65 mm, the diameter of the feed inlet is 40 mm, and the length is 50 mm; at the bottom of the conical cylinder 5, there is an underflow opening 9, and the diameter of the under...

Embodiment 2

[0035] In order to illustrate the influence of the passage hole on the twisted belt in the sediment cyclone separator for natural gas hydrate exploitation disclosed in Example 1 on the resistance change, this example conducted a separator pressure drop experiment at different flow rates. The result is as Image 6 As shown, it can be seen from the figure that within the given flow range, the pressure drop of the separator without flow holes on the twisted belt is about 9.5% higher than that of the separator with flow holes.

Embodiment 3

[0037] Figure 7 Shown is the comparison result of the separation efficiency of the cyclone separator disclosed in Example 1 and the separation efficiency of the traditional hydrocyclone.

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Abstract

The invention discloses a cyclone separator for natural gas hydrate exploitation silt. A separator body comprises a cylindrical barrel body and a conical barrel body, wherein an overflowing opening isformed in the top of the cylindrical barrel body; a feeding opening is formed in a side wall of the cylindrical barrel body; a bottom flow opening is formed in the bottom of the conical barrel body;a band is longitudinally arranged in the separator body and is positioned at the axis of the separator; the top of the band is fixedly connected with the cylindrical barrel body through a fixing support on the band; and the bottom end of the band is fixedly connected with the conical barrel body through a band lower fixing support. The separator is simple in structure, convenient to mount, low inprocessing cost, wide in application range and high in separation efficiency, and is suitable for separating silt in a natural gas hydrate exploitation process; by the built-in band, the strength of inner swirling flow is enhanced, and secondary separation is realized favorably; the flowing stability of an inner swirling flow region is improved, and safe running of the system is facilitated; by the band, a zero-flow-speed envelope line moves outwards, and loss of the hydrate is reduced favorably; and by a flow hole, a channel is provided for floating up of central gas, and running faults caused by air resistance are avoided.

Description

technical field [0001] The invention belongs to the technical field of separation of mixtures in the exploitation process of seabed natural gas hydrate, and in particular relates to a sediment separation device for fluidized exploitation of seabed natural gas hydrate, and can also be used for purification and separation of complex flow systems of other pipelines. Background technique [0002] As a new type of clean energy, natural gas hydrate is abundant in polar permafrost, marine sediments, and land-sea borders. Under the same conditions, the carbon content of the same volume of natural gas hydrate is much higher than that of other fossil energy sources. Therefore, natural gas hydrate, as a new type of clean energy that can replace fossil energy in the future, has attracted attention from all over the world. [0003] However, due to the unique occurrence conditions of natural gas hydrate and its own physical characteristics, the production process of natural gas hydrate is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/01E21B43/36
CPCE21B43/01E21B43/36E21B41/0099
Inventor 饶永超孙毅王树立丁博洋陈锋王子文
Owner CHANGZHOU UNIV
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