Two-stage cyclone filtering device

A technology of cyclone filtration and cyclone, which is applied in combination devices, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of inconvenient disassembly and assembly, bulky volume, filter blockage, etc., and achieves convenient disassembly and assembly, sand discharge Good effect and good sealing effect

Active Publication Date: 2021-03-12
重庆市正华钻采设备有限公司
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AI Technical Summary

Problems solved by technology

Among the currently commonly used desanders, the filter structure is simple, bulky, and the overall sand removal effect is not good. At the same time, the operation is complicated, and the filter is prone to clogging, which affects the use effect of the entire desander, and it is inconvenient to disassemble. Frequent filter replacement

Method used

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  • Two-stage cyclone filtering device
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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

[0018] a kind of like Figure 1-Figure 2 The shown two-stage cyclone filter device includes a cylinder body and an air inlet 13 and an air outlet 14 arranged on the cylinder body. A cyclone 8 is arranged in the cylinder body, and the cyclone 8 is located at the lower part of the cylinder body, and the cyclone device 8. The outer peripheral wall is positioned on the inner wall of the cylinder. The cyclone 8 has a hollow structure in the same direction as the cylinder in the axial direction, and there is a circulation groove around it on the outer peripheral wall of the cyclone 8. The air inlet 13 runs through the cylinder. And connected to the circulation groove, on the side wall of the cyclone 8 between the circulation groove and the hollow structure, there are several first swirl holes inclined to the middle and side of the bottom of the...

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Abstract

The invention discloses a two-stage cyclone filtering device which adopts a two-stage cyclone design of a cyclone and a cyclone plate, natural gas mixed with coarse and fine sand grains with differentsizes is subjected to cyclone filtering through a first cyclone hole in the cyclone and a second cyclone hole in the cyclone plate respectively, and coarse sand is subjected to cyclone centrifugal filtering through the lower part of a cylinder body; fine sand is subjected to cyclone centrifugal filtration at the upper part of the cylinder body, sand grains in natural gas are subjected to optimized centrifugal filtration by designing the arrangement mode of the first cyclone hole and the second cyclone hole, then the sand grains are filtered by the aid of a filter cylinder, and finally, the natural gas discharged from a gas outlet is low in impurity content; overall, the functions of good sand discharging effect, good sealing performance, convenient disassembly and assembly, online sand discharging and the like can be achieved.

Description

technical field [0001] The invention relates to a shale gas wellhead swirl filter sand removal device, in particular to a two-stage swirl filter device, belonging to the technical field of shale gas gas recovery devices. Background technique [0002] Shale gas wellhead sand removal is used as wellhead fracturing sand removal equipment to ensure that the station equipment is not eroded by gas sand particles during gas transmission. It is used as a supporting tool for oil (gas) trees or wellhead throttling devices to remove wellbore during fracturing. The fracturing sand and other impurities can be adjusted, and the functions of sand discharge and filtration can be adjusted. [0003] According to the channel mode, the desander can be divided into two types: straight-through type and side-through type. According to the shape of the filter, it can be divided into two types: direct filtration and filter sand discharge. Among the currently commonly used desanders, the filter stru...

Claims

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Application Information

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IPC IPC(8): B01D50/00
CPCB01D50/20
Inventor 周鹏安毅洪左佩周林乾李小益张志科范先晔梁可周训云傅汝冬金沛崔敏夏洪李沅钊况俊舟张舒漫
Owner 重庆市正华钻采设备有限公司
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