A continuously adjustable integrated anti-clogging screen device

Abstract

The invention discloses a continuously adjustable integrated anti-clogging screen device, which comprises a screen frame and upper screen joints and lower screen joints arranged at both ends of the screen frame; the screen frame includes a plurality of axial frame lines, oblique Axial skeleton lines and adjustable skeleton lines; the axial skeleton lines are connected between the upper screen joint and the lower screen joint and are parallel to the axes of the two, and a plurality of axial skeleton lines are evenly distributed along the circumference to surround the upper screen. The mesh joint and the lower screen joint are coaxial cylindrical skeletons; the oblique skeleton lines are obliquely fixed on the cylindrical skeleton and a plurality of oblique skeleton lines are evenly distributed along the circumference, and there are sets between adjacent two oblique skeleton lines An adjustable skeleton wire running in the same direction as the oblique skeleton wire; the adjustable skeleton wire can move radially to change the gap between the adjustable skeleton wire and the oblique skeleton wires on both sides so as to adjust the porosity of the screen mesh skeleton. The sieve porosity of the present invention can be adjusted in real time according to the change of working conditions, and has anti-clogging function at the same time, which greatly improves the efficiency of repair work.

Description

technical field [0001] The invention belongs to the technical field of water resources restoration and filtering equipment, and in particular relates to a continuously adjustable integrated anti-clogging screen device. Background technique [0002] In the water well industry, the screen pipe, also known as the water filter pipe, is a key component of water resource filtration and contaminated site remediation equipment. The screen is usually located in the middle and lower part of the repair equipment, and is mainly used to filter and block sediment and provide a channel for the hydrodynamic circulation. During the working process, the screen tube needs to withstand high confining pressure from the formation. Therefore, in order to ensure high working strength, the current screen tube is mainly manufactured by winding, binding, welding, laser cutting and other manufacturing processes, but the porosity of the screen tube after manufacturing is completed. As a fixed value, it...

AI Technical Summary

Problems solved by technology

During the working process, the screen pipe needs to bear the high confining pressure from the formation. Therefore, in order to ensure a high working strength, the current screen pipe is mainly manufactured through winding, binding, welding, laser cutting and other manufacturing processes, but the porosity of the screen pipe after manufacture is It is a fixed value and cannot be properly adjusted according to changes in the environment to achieve the optimal effect

[0003] At the same time, after a period of use, impurities in the soil will be deposited in the pores of the screen, resulting in blockage of the screen and a decrease in porosity, which will affect the smooth development of hydrodynamic circulation and repair operations

At this time, it is necessary to regularly lift the screen from the bottom of the hole for maintenance and cleaning operations, which greatly increases the auxiliary operation time and reduces the repair efficiency

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