CN212789992U

CN212789992U - Vertical filter device

Info

Publication number: CN212789992U
Application number: CN202020344124.2U
Authority: CN
Inventors: 周晓东
Original assignee: Beijing Jinkelong Petroleum Technology Development Co ltd
Current assignee: Beijing Jinkelong Petroleum Technology Development Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-03-26
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to a vertical filtering device, a shell, a water inlet pipe arranged on the shell, a flower sleeve arranged in the cavity of the shell, wherein the flower sleeve comprises a hollow pipe body, the hollow position of the pipe body forms a fluid flow cavity, a plurality of slotted holes are arranged on the pipe body at intervals, the slotted holes are communicated with the flow cavity, and a medium can overflow from the slotted holes after passing through the water inlet pipe and the flow cavity in sequence; a filter screen assembly is arranged in the cavity of the shell, a gap is formed between the filter screen assembly and the inner wall of the shell to form an annular channel, a medium overflowing from the slotted hole can enter the filter inner cavity, and the filter screen assembly is used for filtering impurities in the medium; the shell is provided with a water outlet pipe, and the filtered medium is discharged from the water outlet pipe through the annular channel. The utility model discloses simple structure can filter the impurity that gets into the pipeline, ensures the normal use of pipeline.

Description

Vertical filter device

Technical Field

The utility model discloses be applied to the oil gas field, install on the well head annotates, arranges and adopts the pipeline.

Background

Generally, in an oil-gas well, the formation pressure is reduced within a period of production, a wellbore medium is changed into a two-phase or three-phase fluid, and for the gas well, fracturing construction open flow can also cause wellbore sand discharge and bring potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The filtering and sand prevention of the medium are realized through the internal filtering assembly structure, and the injected water is prevented from blocking the stratum or prolonging the service life of ground equipment and production pipelines in the drainage and production process. The utility model discloses a field assembly is simple, convenient operation, realizes the technical scheme of above-mentioned purpose as follows:

a vertical filtering device comprises a shell with a cavity in the center, wherein a water inlet pipe is arranged on one side end face of the shell, a flower sleeve is arranged in the cavity of the shell, the flower sleeve comprises a hollow pipe body, a fluid flow cavity is formed in the hollow position of the pipe body, a plurality of slotted holes are formed in the pipe body at intervals, the slotted holes are communicated with the flow cavity, and a medium can overflow from the slotted holes after sequentially passing through the water inlet pipe and the flow cavity; a filter screen assembly is arranged in a cavity of the shell below the flower sleeve, a gap is formed between the filter screen assembly and the inner wall of the shell, an annular channel is formed in the gap, the top of the filter screen assembly abuts against the lower end of the flower sleeve, the filter screen assembly is provided with a filter inner cavity, the slotted hole is located in the range of the filter inner cavity, the medium overflowing from the slotted hole can enter the filter inner cavity, and the filter screen assembly is used for filtering impurities in the medium; the water outlet pipe is arranged on the shell corresponding to the direction of the water inlet pipe, and the filtered medium can be discharged from the water outlet pipe through the annular passage.

Preferably, the top of the shell is provided with a plug hole, a plug is arranged in the plug hole, and the bottom end of the plug abuts against the flower sleeve.

Preferably, the bottom of the housing is provided with a discharge pipe which is communicated with the filtering inner cavity.

Preferably, the discharge pipe is provided with a ball valve, and the ball valve controls the opening and closing of the discharge pipe.

Preferably, a deflation valve is arranged on the plug and used for pressure relief in the cleaning process.

The device is arranged on a water injection wellhead, so that the pollution of injected water to the stratum can be effectively improved; meanwhile, the device can be installed at an oil extraction wellhead, and erosion of solid particles from wellbore fluid to ground pipelines and equipment can be effectively reduced.

The utility model discloses a slotted hole of flower cover makes the upstream medium flow direction change, gets into and filters the inner chamber, filters through the filter screen, realizes the debris clearance, and the medium after the filtration passes through annular space passageway and discharges. The foreign materials deposited in the housing are discharged through the discharge pipe.

Drawings

FIG. 1 is a schematic cross-sectional view of a filtration apparatus of the present invention;

description of the figures: the device comprises a shell 1, a water inlet pipe 2, a discharge pipe 3, a flower sleeve 4, a slotted hole 5, a filter screen assembly 6, a filter inner cavity 7, an annular channel 8, a water outlet pipe 9, a plug 10, a ball valve 11, an air release valve 12 and a sealing joint 13;

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In the figure, the vertical filtering device comprises a shell 1 with a cavity in the center, a water inlet pipe 2 is arranged on one side end surface of the shell, a discharge pipe 3 is arranged at the bottom of the shell, the water inlet pipe 2 corresponds to the position, a flower sleeve 4 is arranged in the cavity of the shell 1, the flower sleeve 4 comprises a hollow pipe body, two ends of the pipe body are propped against the inner wall of the shell, a flow cavity of fluid is formed at the hollow position of the pipe body, a plurality of slotted holes 5 are arranged on the pipe body at intervals, the slotted holes 5 are communicated with the flow cavity, a medium such as water enters from the water inlet pipe 2 and then flows into the flow cavity, and the water in the flow cavity can overflow from; the flower sleeve 4 forms a sealing fit with the housing 1, ensuring that the medium is entirely fed from the inlet pipe 2 into the flow chamber.

The utility model discloses a flower cover 4, including casing 1, flower cover 4, filter screen assembly 6, certain clearance has between the inner wall of filter screen assembly 6 and casing 1 for the flow of medium, the clearance forms annular space passageway 8, filter screen assembly 6 is arranged in the impurity among the filter medium, wherein filter screen assembly 6's top is supported and is leaned on the lower extreme at flower cover 4, filter screen assembly 6 forms and filters inner chamber 7, slotted hole 5 is located the within range of filtering inner chamber 7, and the medium that so spills over from slotted hole 5 just can get into completely and filter inner chamber 7 in, and the medium that gets into in filtering inner chamber 7 filters through filter screen assembly, and filterable purpose prevents that particulate matter from getting into stratum or pipeline and causing pollution and jam, causes equipment can not normally work or potential safety hazard. The filtered impurities are retained in the filter chamber 7 and the clean media flows out of the filter chamber 7 into the annular channel 8. The utility model discloses in, filter screen assembly 6 includes the filter screen that two intervals set up, form between the filter screen and filter inner chamber 7.

A water outlet pipe 9 is arranged on the shell 1 corresponding to the direction of the water inlet pipe 2, and water in the annular channel 8 is discharged through the water outlet pipe 9;

preferably, set up a choke plug hole at the top of casing 1, choke plug downthehole installation choke plug 10, the bottom top of choke plug 10 supports at the flower cover 4 top to choke plug 10 and filter screen assembly 6 are further fixed a position, fixed with the flower cover 4, are in the same place through the screw-thread fit between choke plug 10 and the casing 1, and screw-thread fit makes things convenient for the dismantlement of choke plug 10 simultaneously, when needing to clear up, can unscrew the choke plug, thereby clear away the debris in sedimentary greasy dirt or the medium on the choke plug.

Impurities formed by long-term filtration are blocked in the filtering inner cavity 7, a ball valve 11 is arranged on the discharge pipe 3 in order to clean the impurities out in time, and the ball valve 11 controls the opening and closing of the discharge pipe; the discharge pipe 3 is provided to allow the impurities to be periodically discharged.

The plug 10 can be provided with a deflation valve 12, when impurities are cleaned or the air pressure in the device is too high, the deflation valve 12 is firstly opened to release the air pressure in the shell 1, and the use safety is ensured.

The filter aperture of the filter screen assembly 6 is set according to the requirement of filtering impurities, and preferably, the sealing joints 13 are designed at the two ends of the filter screen assembly to ensure that the filtered flowing medium is discharged from the water outlet of the shell, and particles and impurities and dirt enter the lower end discharge pipe to realize sewage discharge.

When the filtering device is used, media from the upstream enter a filtering inner cavity of the filtering screen assembly 6 through the slotted holes of the flower sleeve, coarse-particle impurities are precipitated in the filtering inner cavity, impurities are precipitated at the bottom of the shell under the action of gravity, and the filtered media are discharged through the water outlet and enter a gathering pipeline.

When cleaning, the air release valve is loosened to relieve the pressure in the device, then the plug 10 is disassembled, and the filter screen can be lifted out for cleaning and descaling; when sundries in the shell are accumulated to a certain degree, the ball valve 8 is opened to realize discharge, and impurities enter a sewage pipeline.

The utility model discloses being required to install at well head injection line or adopt and arrange the pipeline, realizing impurity filtering through the inside filtering mechanism of filter equipment, piling up the certain degree when debris, can manually get rid of and clear up, operation and maintenance are simple and convenient. Simultaneously still have following advantage:

the filtering precision is high, the flower sleeve and the filter screen assembly realize the steering and filtering of the flowing medium, and the structure is compact; the filtered impurities can be removed manually; the structure is compact, the bearing capacity is strong, and the corrosion resistance is realized; simple operation, long service life and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the embodiments of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the scope of the embodiments of the present invention.

Claims

1. The utility model provides a vertical filter equipment, includes that the center has the casing of cavity, sets up inlet tube, its characterized in that on a side end face of casing: the flower sleeve is arranged in the cavity of the shell and comprises a hollow pipe body, a fluid flow cavity is formed in the hollow position of the pipe body, a plurality of slotted holes are formed in the pipe body at intervals and communicated with the flow cavity, and a medium can overflow from the slotted holes after sequentially passing through the water inlet pipe and the flow cavity; a filter screen assembly is arranged in a cavity of the shell below the flower sleeve, a gap is formed between the filter screen assembly and the inner wall of the shell, an annular channel is formed in the gap, the top of the filter screen assembly abuts against the lower end of the flower sleeve, the filter screen assembly is provided with a filter inner cavity, the slotted hole is located in the range of the filter inner cavity, the medium overflowing from the slotted hole can enter the filter inner cavity, and the filter screen assembly is used for filtering impurities in the medium; the water outlet pipe is arranged on the shell corresponding to the direction of the water inlet pipe, and the filtered medium can be discharged from the water outlet pipe through the annular passage.

2. The vertical filtration device of claim 1, wherein: the top of the shell is provided with a plug hole, a plug is installed in the plug hole, and the bottom end of the plug abuts against the flower sleeve.

3. The vertical filtration device of claim 1, wherein: the bottom of the shell is provided with a discharge pipe which is communicated with the filtering inner cavity.

4. The vertical filtration device of claim 3, wherein: and a ball valve is arranged on the discharge pipe and controls the opening and closing of the discharge pipe.

5. The vertical filtration device of claim 2, wherein: the plug is provided with a deflation valve, and the deflation valve is used for relieving pressure.