CN202376845U

CN202376845U - Fine self-cleaning water-injection filter device

Info

Publication number: CN202376845U
Application number: CN2011205722167U
Authority: CN
Inventors: 檀志远
Original assignee: Individual
Current assignee: Li Honglin; Tan Zhiyuan
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-08-15
Anticipated expiration: 2021-12-30

Abstract

The utility model relates to a fine self-cleaning water-injection filter device. The fine self-cleaning water-injection filter device consists of an upper gland, an outer bearing barrel, a base and a filter core assembly, wherein the upper gland is connected to the top part of the outer bearing barrel in a threading way through screw threads, the base is connected to the bottom part of the outer bearing barrel through screw threads, the filter core assembly is installed inside the outer bearing barrel, the filter core assembly consists of a central connection base pipe, an upper sealing cover, a lower sealing cover and a filter core, the filter core consists of a power factor coefficient (PFC) ceramic filter sheet, a filter net and a supporting net, the PFC ceramic filter sheet is sleeved on the central connection base pipe, the upper sealing cover and the lower sealing cover are respectively tightened on the upper end and the lower end of the filter core, the bottom end of the central connection base pipe is connected onto the top end of a central hole of the base in a threading way, the bottom end of the central hole of the base is connected with a water outlet pipe joint, sieve meshes covers the surface of the base, the sieve meshes are communicated with a sewage collector pipe inside the base, and the sewage collector pipe is communicated with a sewage drainage pipe at the side surface of the base. The fine self-cleaning water-injection filter device integrates the precipitation filter and the adsorption filter to implement twice purification of the water quality, so that the filter precision is high; and the filter core has a backwash self-cleaning function, is uneasy to block and has long service life.

Description

Meticulous self-cleaning water filling filter

Technical field

The utility model belongs to the oil field development field, relates to a kind of water injection well in oil fields well head filter, a kind of specifically " meticulous self-cleaning water filling filter ".

Background technology

In the oilfield exploitation later stage; Often, the downhole oil stressor layer cause crude output to reduce because of reducing; Usually the way of taking is with water injection well water filling in oil reservoir; Increase the pressure in the oil reservoir, stabilized crude (oil) output, a vital problem is to prevent that the oil reservoir secondary pollution from causing the infringement to bottom in the injecting process.Have design defect on the existing filter apparatus configuration, material for core is selected for use unreasonablely in addition, and water quality is difficult to accomplish double purification; Can't carry out sedimentation and filtration and adsorption filtration simultaneously; Filtering accuracy is poor, occurs sometimes causing filling pipe to stop up because of water quality is bad, and water injection rate reduces; Can not stablize the pressure of oil reservoir, reduce crude oil yield.And existing filter do not have the backwash self-cleaning function, is prone to stop up, and service life is short, needs frequent change, increased the cost that recovers the oil.

The utility model content

For addressing the above problem, the purpose of the utility model is to provide a kind of meticulous self-cleaning water filling filter, integrates sedimentation and filtration and adsorption filtration; Realize double purification, filtering accuracy is high, and filter core has the backwash self-cleaning function; Be difficult for stopping up long service life.

For realizing above-mentioned purpose, the utility model adopts down with technical scheme:

A kind of meticulous self-cleaning water filling filter is made up of upper press cover, pressure-bearing urceolus, base and element kit, and it is characterized in that: the top of upper press cover is provided with admitting pipe joint; Upper press cover is screwed onto the top of pressure-bearing urceolus through screw thread, and base is screwed onto the bottom of pressure-bearing urceolus through screw thread, and element kit is installed in the inside of pressure-bearing urceolus; Element kit connects parent tube, top cover labyrinth, lower sealing cover and filter core by the center and forms, and filter core is made up of PFC ceramic filter, screen pack, supporting network, and the PFC ceramic filter has multi-disc; These PFC ceramic filters center that all is enclosed within connects on the parent tube, and the center connects the parent tube sidewall and is provided with pod apertures, and pod apertures is connected parent tube with the center inner chamber is communicated with; Screen pack is centered around the outside of PFC ceramic filter, and the mesh on the screen pack is the taper of outer narrow inner width, and supporting network is centered around the outside of screen pack; Leave the space between supporting network and the pressure-bearing outer tube inner wall; Top cover labyrinth, lower sealing cover are fastened on the top and bottom of filter core respectively, and it is affixed that lower sealing cover and center are connected parent tube, and the bottom that the center connects parent tube is screwed onto on the top of centre bore of base; The bottom of the centre bore of base is connected with titting water outlet; The surface of base is covered with sieve aperture, and sieve aperture is communicated with the inner sewage collector of base, and the sewage collector is communicated with the blow-off pipe of base side.

Said base side is provided with by-pass prot, and by-pass prot is communicated with the centre bore of base, and backwash tube is installed in the by-pass prot.

The advantage of this product is: integrate sedimentation and filtration and adsorption filtration, suspended particulate and oil droplet greater than screen pack in the water body are filtered through deposition under the self gravitation effect, are adsorbed by filter core less than the suspended particulate and the oil droplet of screen pack; Realize double purification; Filtering accuracy is high, and filter core has the backwash self-cleaning function, is difficult for stopping up; Long service life, operation cost is low, easy to maintenance.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment.

Fig. 2 is the partial sectional view of Fig. 1.

Fig. 3 is the exploded view of Fig. 1.

Fig. 4 is the exploded view of filter core.

Fig. 5 is the partial sectional view of base.

Fig. 6 is the cutaway view of Fig. 1.

The specific embodiment

Label among the figure

1 upper press cover, 2 pressure-bearing urceolus, 3 bases, 4 admitting pipe joints

5 centers connect parent tube 6 top cover labyrinths 7 lower sealing cover 8 filter cores

9 ceramic filters, 10 screen packs, 11 supporting networks, 12 pod apertures

13 centre bores, 14 titting water outlets, 15 sieve apertures, 16 sewage collectors

17 blow-off pipes, 18 by-pass prots, 19 backwash tubes, 20 spaces

Please with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the utility model is a kind of meticulous self-cleaning water filling filter, is made up of upper press cover 1, pressure-bearing urceolus 2, base 3 and element kit; The top of upper press cover 1 is provided with admitting pipe joint 4; Upper press cover 1 is screwed onto the top of pressure-bearing urceolus 2 through screw thread, and base 3 is screwed onto the bottom of pressure-bearing urceolus 2 through screw thread, and element kit is installed in the inside of pressure-bearing urceolus 2; Element kit connects parent tube 5, top cover labyrinth 6, lower sealing cover 7 and filter core 8 by the center and forms; Filter core 8 is made up of PFC ceramic filter 9, screen pack 10, supporting network 11, and PFC ceramic filter 9 has multi-disc, and these PFC ceramic filters 9 center that all is enclosed within connects on the parent tube 5; The center connects parent tube 5 and is provided with pod apertures 12, and pod apertures 12 is connected parent tube 5 with the center inner chamber is communicated with.Screen pack 10 is centered around the outside of ceramic filter 9; Supporting network 11 is centered around the outside of screen pack 10; The mesh of screen pack 10 is the taper of outer narrow inner width, and it is as shown in Figure 6 to leave space 20 between supporting network 11 and pressure-bearing urceolus 2 inwalls, and this space is suspended particulate substance and contamination precipitation passage.Top cover labyrinth 6, lower sealing cover 7 are fastened on the top and bottom of filter core 8 respectively; Lower sealing cover 7 is connected parent tube 5 with the center affixed; The bottom that the center connects parent tube 5 is screwed onto on the top of centre bore 13 of base 3, and the bottom of centre bore 13 is connected with titting water outlet 14, and the surface of base 3 is covered with sieve aperture 15; Sieve aperture 15 is communicated with base 3 inner sewage collectors 16, and sewage collector 16 is communicated with the blow-off pipe 17 of base 3 sides.The base side is provided with by-pass prot 18, and by-pass prot 18 is communicated with the centre bore 13 of base 3.Backwash tube 19 is installed in the by-pass prot 18.

The mesh of screen pack 10 is taper, and outer narrow inner width can be outside at filter core with suspended particulate retaining big in the water body; These big suspended particulates lean on own wt to fall, and in the sieve aperture 15 on base 3 surfaces of entering filter core below, converge through sewage collector 16; Accomplish once and filter, little suspended particulate enters into the filter core that PFC ceramic filter 9 constitutes through screen pack 10, and PFC is that a kind of ceramic powders adds the porous material that the active carbon sintering forms; Its inner micropore that forms is evenly distributed, and has simultaneously and filters and adsorption function, greater than the suspended particulate and the oil droplet of PFC micropore; All can be dammed surface at PFC ceramic filter 9 by 9 absorption of PFC ceramic filter, by pod apertures 12 entering centers is connected in the inner chamber of parent tube 5 through the clear water after the adsorption filtration less than the suspended particulate of PFC micropore and oil droplet; Again through the centre bore 13 of base 3; By titting water outlet 14 outputs, reach double purification, water quality up to standard is injected well.

The appearance and the internal capillary of PFC ceramic filter 9 are passed in time, and the material that dams can get more and more, and the pressure reduction that filter is imported and exported can be along with increasing gradually; The flow of outlet can reduce; Change and can the water inlet pipe closing gate be opened the backwash tube gate according to pressure reduction, clear water gets into the centre bore 13 of base 3 from backwash tube 19; The 12 pairs of PFC ceramic filters of pod apertures 9 that upwards connect parent tube 5 through the center carry out backwash; The impurity that dams this moment inside and outside filter core will get into blow-off pipe 17 through sieve aperture 15, is discharged by blow-off pipe 17, reaches PFC filter core cleaning function from inside to outside.

Claims

1. a meticulous self-cleaning water filling filter is made up of upper press cover, pressure-bearing urceolus, base and element kit, and it is characterized in that: the top of upper press cover is provided with admitting pipe joint; Upper press cover is screwed onto the top of pressure-bearing urceolus through screw thread, and base is screwed onto the bottom of pressure-bearing urceolus through screw thread, and element kit is installed in the inside of pressure-bearing urceolus; Element kit connects parent tube, top cover labyrinth, lower sealing cover and filter core by the center and forms, and filter core is made up of PFC ceramic filter, screen pack, supporting network, and the PFC ceramic filter has multi-disc; These PFC ceramic filters center that all is enclosed within connects on the parent tube, and the center connects the parent tube sidewall and is provided with pod apertures, and pod apertures is connected parent tube with the center inner chamber is communicated with; Screen pack is centered around the outside of PFC ceramic filter, and the mesh on the screen pack is the taper of outer narrow inner width, and supporting network is centered around the outside of screen pack; Leave the space between supporting network and the pressure-bearing outer tube inner wall; Top cover labyrinth, lower sealing cover are fastened on the top and bottom of filter core respectively, and it is affixed that lower sealing cover and center are connected parent tube, and the bottom that the center connects parent tube is screwed onto on the top of centre bore of base; The bottom of the centre bore of base is connected with titting water outlet; The surface of base is covered with sieve aperture, and sieve aperture is communicated with the inner sewage collector of base, and the sewage collector is communicated with the blow-off pipe of base side.

2. a kind of meticulous self-cleaning water filling filter as claimed in claim 1, it is characterized in that: said base side is provided with by-pass prot, and by-pass prot is communicated with the centre bore of base, and backwash tube is installed in the by-pass prot.