CN213450347U

CN213450347U - Fine filter device for water injection well mouth

Info

Publication number: CN213450347U
Application number: CN202022673727.XU
Authority: CN
Inventors: 贺红艳; 贺金星; 刘向鹏; 周涛; 白景朝
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-15
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a water injection well head fine filter device, including casing, arc ring, two-way hydro-cylinder and positioning mechanism, the casing outside is provided with two sets of arc rings relatively, and is provided with two-way hydro-cylinder between two sets of arc rings, two sets of outputs of two-way hydro-cylinder are fixedly connected with the piston rod respectively, and the piston rod other end and the vertical section bolt fastening of arc ring, the arc ring outer wall evenly is provided with multiunit positioning mechanism; the port department of casing upper surface open end has fixed lid through the multiunit bolt fastening, fixed lid top intercommunication has the inlet tube, the central point of casing bottom puts the outlet pipe that the band has the valve even, inlet tube inner wall fix with screw has the filter screen, shells inner wall bolt fastening has the filter frame, filter frame inside from the top down has set gradually fine sand filter layer, rock filter layer, active carbon filter layer and gauze cloth. This water injection well head fine filter device, simple structure, the practicality is strong.

Description

Fine filter device for water injection well mouth

Technical Field

The utility model belongs to the technical field of the filter, concretely relates to meticulous filter equipment of water injection well head.

Background

At present, in the process of separate-layer water injection development of each oil field, deposition of various impurities, welding slag, corrosion and scaling in a water injection pipeline along the process, suspended matters, impurities, solid particles and the like injected into high-pressure water easily enter a shaft, water nozzles of a water distributor are blocked or a measuring and regulating instrument enters a blockage block, so that normal water injection cannot be realized, and a wellhead filter is required to be installed in a common water injection well to filter the injected water;

the fine filter device for the existing water injection well mouth can not be well fixed in the well mouths with different calibers when in use, thereby reducing the usability of the filter device.

Therefore, in order to meet the current situation, the design and production of a fine filter device of a water injection wellhead are urgently needed to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water injection well head fine filter device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the water injection wellhead fine filter device comprises a shell, arc-shaped rings, a two-way oil cylinder and a positioning mechanism, wherein two groups of arc-shaped rings are oppositely arranged on the outer side of the shell, the two-way oil cylinder is arranged between the two groups of arc-shaped rings, two groups of output ends of the two-way oil cylinder are respectively and fixedly connected with a piston rod, the other end of the piston rod is fixed with a vertical section of each arc-shaped ring through a bolt, and a plurality of groups of positioning mechanisms are uniformly arranged;

the port department of casing upper surface open end has fixed lid through the multiunit bolt fastening, fixed lid top intercommunication has the inlet tube, the central point of casing bottom puts the outlet pipe that the band has the valve even, inlet tube inner wall fix with screw has the filter screen, shells inner wall bolt fastening has the filter frame, filter frame inside from the top down has set gradually fine sand filter layer, rock filter layer, active carbon filter layer and gauze cloth.

Preferably, the positioning mechanism comprises a fixed frame, a positioning block, a moving block and compression springs, the outer walls of one group of vertical outer walls of the fixed frame are fixed with the outer walls of the arc-shaped rings through bolts, the inner walls of the fixed frame are connected with the moving block in a sliding manner, and two groups of compression springs are fixedly welded between the moving block and the inner walls of one group of vertical inner walls of the fixed frame;

the transverse straight section of the moving block penetrates through a through hole formed in the outer wall of the fixing frame and extends to the outside of the fixing frame, and a positioning block with a cylindrical protruding structure is fixedly welded at one end, far away from the compression spring, of the moving block.

Preferably, the fine sand filter layer is closely attached to the rock filter layer, the rock filter layer is closely attached to the activated carbon filter layer, and the activated carbon filter layer is closely attached to the gauze cloth.

Preferably, the outer wall of the shell is hinged with four groups of telescopic rods, and the telescopic ends of every two telescopic rods are hinged with the inner wall of the arc-shaped ring.

Preferably, the bottom wall of the filter frame is uniformly provided with a plurality of groups of filter holes, and the transverse sections of the filter holes are in a hexagonal structure.

The utility model discloses a technological effect and advantage: according to the water injection wellhead fine filter device, the two groups of piston rods are driven to move relatively through the two-way oil cylinder, so that the distance between the two groups of arc-shaped rings is adjusted, and meanwhile, the whole body can be fixed in wellheads with different apertures according to the matching use of the positioning mechanism; through the filtering effects of the filter screen, the fine sand filter layer, the rock filter layer, the activated carbon filter layer and the gauze cloth, the water quality detection and the filtration can be conveniently and effectively carried out, and the problems of time and labor waste in the original water quality detection are solved; the fixed cover is fixedly connected with the shell through a plurality of groups of bolts, so that the shell is convenient to disassemble, and an operator can conveniently clean the inside of the shell; this water injection well head fine filter device, simple structure, the practicality is strong.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a cross-sectional view of the housing of the present invention;

fig. 3 is a cross-sectional view of the positioning mechanism of the present invention;

fig. 4 is a schematic structural diagram of the housing of the present invention.

In the figure: the device comprises a shell 1, an arc-shaped ring 2, a bidirectional oil cylinder 3, a positioning mechanism 4, a fixing frame 41, a positioning block 42, a moving block 43, a compression spring 44, a telescopic rod 5, a fixing cover 6, a water inlet pipe 7, a filter screen 8, a filter frame 9, a fine sand filter layer 10, a rock filter layer 11, a gauze cloth 12 and an active carbon filter layer 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a water injection well head fine filter device as shown in figures 1-4, which comprises a shell 1, arc-shaped rings 2, a two-way oil cylinder 3 and a positioning mechanism 4, wherein two groups of arc-shaped rings 2 are oppositely arranged outside the shell 1, the two-way oil cylinder 3 is arranged between the two groups of arc-shaped rings 2, two groups of output ends of the two-way oil cylinder 3 are respectively and fixedly connected with a piston rod, the other end of the piston rod is fixed with a vertical section bolt of the arc-shaped rings 2, and the outer wall of the arc-shaped rings 2 is uniformly provided with a plurality;

the port department of 1 upper surface open end of casing has fixed lid 6 through the multiunit bolt fastening, and the convenience is unpack the shell, 1 apart, makes things convenient for operating personnel to clear up 1 inside of casing, 6 top intercommunication of fixed lid have inlet tube 7, the central point of 1 bottom of casing puts the outlet pipe that has the valve even, inlet tube 7 inner wall screw fastening has

filter screen

8, 1 inner wall bolt fastening of casing has filter frame 9, filter frame 9 is inside from the top down has set gradually fine sand filter layer 10, rock filter layer 11, active carbon filter layer 13 and gauze cloth 12.

Specifically, the positioning mechanism 4 comprises a fixed frame 41, a positioning block 42, a moving block 43 and compression springs 44, wherein a group of vertical outer walls of the fixed frame 41 are fixed with the outer wall of the arc-shaped ring 2 through bolts, the inner wall of the fixed frame 41 is connected with the moving block 43 in a sliding manner, and two groups of compression springs 44 are fixedly welded between the moving block 43 and a group of vertical inner walls of the fixed frame 41;

the transverse straight section of the moving block 43 penetrates through a through hole formed in the outer wall of the fixing frame 41 and extends to the outside of the fixing frame 41, one end, far away from the compression spring 44, of the moving block 43 is fixedly welded with the positioning block 42 with a cylindrical protruding structure, and when the positioning block 42 is in contact with the inner wall of the well, the positioning block drives the moving block 43 to extrude the compression spring 44 through the driving of the bidirectional oil cylinder 3, so that the stability of the integral fixing in the well mouth is guaranteed due to the flexibility of the compression spring 44.

Specifically, the fine sand filter layer 10 and the rock filter layer 11 are tightly attached, the rock filter layer 11 and the activated carbon filter layer 13 are tightly attached, and the activated carbon filter layer 13 and the gauze cloth 12 are tightly attached.

Specifically, the outer wall of the shell 1 is hinged with four groups of telescopic rods 5, and the telescopic ends of the telescopic rods 5 in a pair are hinged with the inner wall of the arc-shaped ring 2.

Specifically, the bottom wall of the filter frame 9 is uniformly provided with a plurality of groups of filter holes, and the transverse sections of the filter holes are of hexagonal structures.

The theory of operation, this meticulous filter device of water injection well head, when using, at first place this whole in the well head through coupling mechanism, then drive two sets of piston rod relative motion through two-way hydro-cylinder 3, make interval adjust between two sets of arc rings 2, locating piece 42 and well inner wall carry out inconsistent simultaneously, and extrude compression spring 44 through movable block 43, because compression spring 44's elasticity, this monolithic stationary is guaranteed at the intraoral stability of well, when filtering, in leading-in casing 1 with water through inlet tube 7, through filter screen 8, fine sand filter layer 10, rock filter layer 11, active carbon filter layer 13 and gauze 12 carry out effective filtration, discharge outlet pipe through the valve with filterable water at last.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Fine filter device of water injection well head, including casing (1), arc ring (2), two-way hydro-cylinder (3) and positioning mechanism (4), its characterized in that: two groups of arc-shaped rings (2) are oppositely arranged on the outer side of the shell (1), a two-way oil cylinder (3) is arranged between the two groups of arc-shaped rings (2), two groups of output ends of the two-way oil cylinder (3) are respectively and fixedly connected with piston rods, the other end of each piston rod is fixed with a vertical section of each arc-shaped ring (2) through a bolt, and a plurality of groups of positioning mechanisms (4) are uniformly arranged on the outer wall of each arc-shaped ring (2);

the port department of casing (1) upper surface open end has fixed lid (6) through the multiunit bolt fastening, fixed lid (6) top intercommunication has inlet tube (7), the central point of casing (1) bottom puts the outlet pipe that has the valve even in the area, inlet tube (7) inner wall fix with screw has filter screen (8), casing (1) inner wall bolt fastening has filter frame (9), filter frame (9) inside from the top down has set gradually fine sand filter layer (10), rock filter layer (11), activated carbon filter layer (13) and gauze cloth (12).

2. The waterflooding wellhead fine filter apparatus of claim 1, wherein: the positioning mechanism (4) comprises a fixed frame (41), a positioning block (42), a moving block (43) and compression springs (44), wherein a group of vertical outer walls of the fixed frame (41) are fixed with the outer wall of the arc-shaped ring (2) through bolts, the moving block (43) is connected to the inner wall of the fixed frame (41) in a sliding mode, and two groups of compression springs (44) are fixedly welded between the moving block (43) and a group of vertical inner walls of the fixed frame (41);

the transverse straight section of the moving block (43) penetrates through a through hole formed in the outer wall of the fixing frame (41) and extends to the outside of the fixing frame (41), and a positioning block (42) with a cylindrical protruding structure is fixedly welded at one end, far away from the compression spring (44), of the moving block (43).

3. The waterflooding wellhead fine filter apparatus of claim 1, wherein: the fine sand filter layer (10) is tightly attached to the rock filter layer (11), the rock filter layer (11) is tightly attached to the activated carbon filter layer (13), and the activated carbon filter layer (13) is tightly attached to the gauze cloth (12).

4. The waterflooding wellhead fine filter apparatus of claim 1, wherein: the outer wall of the shell (1) is hinged with four groups of telescopic rods (5), and the telescopic ends of the telescopic rods (5) are hinged with the inner wall of the arc-shaped ring (2).

5. The waterflooding wellhead fine filter apparatus of claim 1, wherein: the filter frame (9) diapire evenly seted up the multiunit and filtered the hole, and the transverse section who filters the hole sets up to hexagon structure.