CN2573047Y

CN2573047Y - Backflush filter

Info

Publication number: CN2573047Y
Application number: CN 02270302
Authority: CN
Inventors: 谢金川; 王志坚; 智勤功; 高雪峰; 孙秀钊; 杨百新
Original assignee: Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Current assignee: Oil Production Technology Research Institute of Sinopec Shengli Oilfield Co
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2003-09-17
Anticipated expiration: 2012-10-18

Abstract

The utility model discloses a back flush filter which comprises an inlet, an outlet, an outer cylinder, a central sieve pipe and a filtering layer which is coated at the outer surface of the utility model. The lower end of the outer cylinder (14) and a liquid inlet (6) are connected with a dirt discharging and back flush process system which is composed of pipes (3, 8) and valves (4, 9). A pump does not need to be stopped, and the utility model can discharge dirt and can carry out a back flush busywork for the filtering layer at any moment. The operating cost is lowered, and the service life is extended. The utility model can be used in filtering technology for purifying well inlet liquid or other kinds of liquid for a water injection well and an oil well.

Description

Can anti-filter rinsed

One, technical field

The utility model relates to filtering flow equipment, particularly a kind of be used for that oil field development injects water and oil well working fluid or other fluid purification can anti-filter rinsed.

Two, background technology

At present, the filter of application is made up of fluid inlet, outlet, center screen casing and filter screen and urceolus.Can filter effectively by convection cell, but it in use must clean in termination of pumping, can not anti-cleaning and filtering layer, impurity dirt after the filtration can not be discharged, and the service efficiency of filter is reduced greatly, has to stop using after after a while, change filter course, cause the life cycle weak point, use trouble, incur loss through delay water filling, increased use cost.

Three, summary of the invention

The technical problems to be solved in the utility model is to avoid or overcome shortcoming or the deficiency that exists in the above-mentioned prior art, and provide a kind of and can not termination of pumping clean at any time, the discharge impurities dirt, can also the blocked filter course of backwash filter, improved the service efficiency of filter, prolong service life, reduced use cost.

The technical scheme that the utility model will be dealt with problems is, comprise import, outlet, urceolus, center screen casing and wrap in its outer surface filter course can anti-filter rinsed, the lower end of its urceolus is connected a blowdown that is made of pipeline and valve and anti-cleaning process system with the fluid inlet place.This streaming system system is a vertical structure, also can be horizontal type structure.

The utility model has following advantage compared with prior art:

1, can not termination of pumping despumation dirt at any time, simple, convenient;

2, can carry out anti-washing and cleaning operation to the filter course that is stopped up by the impurity dirt, make filter course can obtain being used again; Improve its service efficiency, prolonged life cycle, reduced use cost.

Four, description of drawings

Fig. 1 be a kind of can anti-filter rinsed structural representation;

Fig. 2 is for pressing horizontal type structure schematic diagram shown in Figure 1.

Five, specific embodiments

Referring to Fig. 1, a kind of can anti-filter rinsed, comprise urceolus 14, import 6, outlet 1, center screen casing 12 and wrap in the filter course 13 of its outer surface that the lower end of urceolus 14 connects blowdown and anti-cleaning process system.Pipeline 8 is connected the lower end of urceolus 14 in parallel, and on the sewage draining exit 10 that pipeline 8 is connected blowoff valve 9 is housed.Fluid inlet 6 places and export connecting pipe 3 between the valve 2 at 1 place, pipeline 3 is provided with valve 4.During filter work, blowoff valve 9 and valve 4 are closed, and fluid enters urceolus 14 through valve 5 by pipeline 7 from import 6, filter the back through filtering layer 13 and are discharged from outlet 1 by pipeline 15, valve 2.When need blowdown or backwash, can not termination of pumping, open blowoff valve 9 impurity and dirt are discharged; Or valve 2, valve 5 closed, open valve 4 and blowoff valve 9, water is discharged by sewage draining exit 10 by pipeline 8 and blowoff valve 9 through center screen casing 12 and filter course 13 thereof from import 6, enter filter inner chamber 11 through

pipeline

3,16,15 again, finishes anti-cleaning process.

Claims

1, a kind of can anti-filter rinsed, comprise import, outlet, urceolus, center screen casing and wrap in the filter course of its outer surface, the lower end and the fluid inlet (6) that it is characterized in that urceolus (14) are located, and connect by the blowdown of pipeline (3,8) and valve (4,9) formation and anti-cleaning process system.

2, according to claim 1 can anti-filter rinsed, it is characterized in that blowdown and anti-cleaning process system are vertical structures, also can be horizontal type structure.