CN201658899U

CN201658899U - High-speed self-cleaning eddy type filtering device

Info

Publication number: CN201658899U
Application number: CN2010201752120U
Authority: CN
Inventors: 不公告发明人
Original assignee: CHENGDU BEST DIAMOND BIT CO LTD
Current assignee: CHENGDU BEST DIAMOND BIT CO LTD
Priority date: 2010-04-28
Filing date: 2010-04-28
Publication date: 2010-12-01
Anticipated expiration: 2020-04-28

Abstract

The utility model discloses a high-speed self-cleaning eddy type filtering device, and belongs to the technical field of comprehensive development of oil field. The device comprises a rigid base pipe and an independent filtering mechanism, wherein the independent mechanism consists of a cap-shaped shell, an embedded inner flow passing sheet and a middle composite filter medium layer; the circular end surface of the cap-shaped shell is provided with combined holes; each group of combined holes consists of a central hole and six leaf-shaped curve holes; the inner flow passing sheet is provided with inner combined holes; each group of inner combined holes consists of an inner central hole and five leaf-shaped inner curve holes; the curve holes and the inner curve holes on the shell and the inner flow passing sheet are helically distributed around the respective central holes, the edge line of each curve hole consists of two sections of closed curves, and the curvilinear equation of the curve hole is close to Archimedes spiral equation; the middle filter medium layer consists of two layers of flow guide nets and a filter medium; and the filter medium is a multi-layer filter screen, metal silk floss, quartz sand, high molecular grains or a combination thereof. The device has the advantages of improving the filtering efficiency, effectively reducing the mechanical deformation and prolonging the service life, along with high and stable filtering accuracy and self-cleaning performance. The device is used for filtering oil gas in oil field exploitation.

Description

The self-cleaning eddy current type filter of high speed

Affiliated technical field

The utility model relates to filter, and especially the hydrocarbon filter device belongs to synthetical development technology field, oil field.

Background technology

At present, the filter of using in the oilfield exploitation has laser slotted device, wire winding device, punching press vertical masonry joint (compound) device etc., the effect that can play sand control to a certain extent and improve oil field comprehensive exploitation efficient.But exist not enough at anticorrosion, filtering accuracy, filtering accuracy stability, self-cleaning property, filter efficiency, the anti-aspects such as sand erosion, anti-mechanically deform of taking.

The utility model content

At the problems referred to above, the utility model provides a kind of high speed self-cleaning eddy current type filter.

The technical scheme that its technical problem that solves the utility model adopts is: the self-cleaning eddy current type filter of high speed, comprise the rigidity parent tube, be distributed with independent filter mechanism on the rigidity parent tube, this mechanism is made of hat shell, middle composite filter media layer and embedded interior flow excessively; Be distributed with combination bore on the end disc of hat shell, every group of combination bore is made up of a centre bore and six foliaceous curved slots, six curved slots are around centre bore shape distribution in the shape of a spiral, and the curved slot edge line is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching; The intermediate filtered dielectric layer is made of two-layer water conservancy diversion net and filter medium, and filter medium is multiple filtration net, metal silk flosssilk wadding, quartz sand, polymeric particles or its assembly; The interior mistake in the flow is distributed with interior combination bore, combination bore is made up of an interior centre bore and five foliaceous inner curve holes in every group, five foliaceous inner curve holes are around the shape distribution in the shape of a spiral of interior centre bore, the edge line in inner curve hole is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching.

Independent filter mechanism is shape distribution in the shape of a spiral on rigidity parent tube outer surface.

The beneficial effects of the utility model are, filtering accuracy high and stable, tool self-cleaning property improve filter efficiency, and can effectively reduce mechanically deform, alleviate take sand to the erosion at mechanical key position, prolong its service life.Being used for oilfield exploitation filters oil gas.

Description of drawings

Fig. 1 is the utility model general structure schematic diagram;

Fig. 2 is independent filter mechanism 9 structural representations among Fig. 1;

Fig. 3 is a hat outer casing frontispiece zoomed-in view among Fig. 2;

Fig. 4 is the A-A profile of Fig. 3;

Fig. 5 is the interior flow front zoomed-in view of crossing among Fig. 2;

Fig. 6 is the B-B profile of Fig. 5.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1-6, the self-cleaning eddy current type filter of high speed comprises rigidity parent tube 8, is distributed with independent filter mechanism 9 on the rigidity parent tube 8, and this mechanism is made of hat shell 1, middle composite filter media layer 4 and the interior flow 5 excessively that embeds; Be distributed with combination bore 10 on the end disc of hat shell 1, every group of combination bore is made up of a centre bore 2 and six foliaceous curved slots 3, six curved slots 3 are around centre bore 2 shape distribution in the shape of a spiral, and the curved slot edge line is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching; Intermediate filtered dielectric layer 4 is made of two-layer water conservancy diversion net and filter medium, and filter medium is multiple filtration net, metal silk flosssilk wadding, quartz sand, polymeric particles or its assembly; The interior mistake is distributed with interior combination bore 11 in the flow 5, combination bore 11 is made up of an interior centre bore 7 and five foliaceous inner curve holes 6 in every group, inner curve hole 6 is around the shape distribution in the shape of a spiral of interior centre bore 7, the edge line in inner curve hole is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching.

When gas stream is passed through this filter mechanism, the combination bore 10 that distributes by specific rule, interior combination bore 11 can be balanced largely and subtract the primary oil flow edge drag, and can effectively reduce mechanically deform, alleviate take sand to the erosion at mechanical key position, prolong its service life, combination bore 11 can reduce turbulent flow simultaneously, and making gas stream by independent filter mechanism the time, form single eddy current, composite filter media layer 4 can guarantee high and stable filtering accuracy.

Claims

1. self-cleaning eddy current type filter of high speed, comprise rigidity parent tube (8) and independent filter mechanism, it is characterized in that, be distributed with independent filter mechanism (9) on the rigidity parent tube (8), this mechanism is by hat shell (1), middle composite filter media layer (4) and interior flow (5) formation of crossing that embeds; Be distributed with combination bore (10) on the end disc of hat shell (1), every group of combination bore is made up of a centre bore (2) and six foliaceous curved slots (3), six curved slots (3) are around centre bore (2) shape distribution in the shape of a spiral, the curved slot edge line is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching; Intermediate filtered dielectric layer (4) is made of two-layer water conservancy diversion net and filter medium, and filter medium is multiple filtration net, metal silk flosssilk wadding, quartz sand, polymeric particles or its assembly; The interior mistake in the flow (5) is distributed with interior combination bore (11), combination bore (11) is made up of an interior centre bore (7) and five foliaceous inner curve holes (6) in every group, inner curve hole (6) is around interior centre bore (7) shape distribution in the shape of a spiral, the edge line in inner curve hole is the curve of two sections closures, and its curvilinear equation and Archimedes spiral equation are approaching.