CN205277385U

CN205277385U - Compound screen pipe

Info

Publication number: CN205277385U
Application number: CN201520891410.XU
Authority: CN
Inventors: 刘欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-11
Filing date: 2015-11-11
Publication date: 2016-06-01
Anticipated expiration: 2025-11-11

Abstract

The utility model discloses a compound screen pipe, including the screen pipe body, the pipe wall of screen pipe body comprises bearing coarse filter layer, essence filtering layer and bearing stratum to interior from outer in proper order, just be equipped with a plurality of sieve meshes on the bearing coarse filter layer, utilize the bearing stratum to strengthen the protection to the essence filtering layer, also play the supporting of internal sheathed tube simultaneously, the utility model has the advantages of simple and reasonable structure, through setting up the bearing stratum, utilize the bearing stratum to strengthen the protection to the filter layer, also play the supporting of internal sheathed tube simultaneously to reducing under the condition of end links, changing can not appear in the bulk strength, has avoided like this because the card that the end links design brought pauses or blocks dead phenomenon, and bearing layer has the colating function simultaneously, has consequently strengthened the protection to the filter layer.

Description

A kind of composite screen pipe

Technical field

The utility model relates to screen casing field, specifically a kind of composite screen pipe.

Background technology

Composite screen pipe is a kind of screen casing adopting three-decker form, traditional screen casing is as shown in Figure 2, from outside to inside successively by load-bearing coarse filtration layer, essence filter filtering layer and supporting layer are formed, and owing to needing the attachment force strengthened between inner sleeve, therefore traditional composite screen pipe two ends are equipped with end ring, but owing to the diameter of end ring is all less than composite screen pipe diameter, therefore card or stuck phenomenon easily occur in the process of actual operation, make overall operation having some setbacks very, therefore overall circulation has some setbacks, have impact on overall operation efficiency greatly, the design of end ring is in the process of actual production simultaneously, also production cost can be increased, overall cost is also improve accordingly.

Practical novel content

The purpose of this utility model is to provide a kind of composite screen pipe, to solve in above-mentioned background technology the problem proposed

For achieving the above object, the utility model provides following technical scheme:

A kind of composite screen pipe, comprises screen casing body, and the tube wall of described screen casing body is made up of load-bearing coarse filtration layer, essence filter filtering layer and supporting layer from outside to inside successively, and described load-bearing coarse filtration layer is provided with some sieve apertures; Utilize supporting layer to strengthen the protection that essence is filtered filtering layer, also play the supporting to inner sleeve, thus when reducing end ring, bulk strength there will not be change simultaneously, this avoid the card owing to end ring design brings or stuck phenomenon; And whole load-bearing coarse filtration layer not only has the effect of load-bearing, also there is the effect of coarse filtration simultaneously, therefore essence filtering layer can be played effective protection.

As further program of the utility model: one end of described screen casing body is provided with threaded connector.

As the utility model further scheme: the thickness of described load-bearing coarse filtration layer is 1mm-1.5mm.

As the utility model further scheme: the thickness of described essence filter filtering layer is 0.5mm-1.2mm.

As the utility model further scheme: the thickness of described supporting layer is 1mm-1.5mm.

Compared with prior art; the beneficial effects of the utility model are: the utility model is simple and reasonable; by arranging supporting layer; utilize supporting layer to strengthen the protection to filtering layer, also play the supporting to inner sleeve simultaneously, thus when reducing end ring; bulk strength there will not be change; this avoid the card owing to end ring design brings or stuck phenomenon, bearing stratum has coarse filtration function simultaneously, therefore strengthens the protection to filtering layer.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of composite screen pipe of the utility model.

Fig. 2 is the existing structural representation of composite screen pipe.

In figure: 1-screen casing body, 2-sieve aperture, 11-load-bearing coarse filtration layer, 12-essence filter filtering layer, 13-support layer.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only the utility model part embodiment, instead of whole embodiments. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1��2, in the utility model embodiment, a kind of composite screen pipe, comprises screen casing body 1, the tube wall of described screen casing body 1 is made up of load-bearing coarse filtration layer 11, essence filter filtering layer 12 and supporting layer 13 from outside to inside successively, and described load-bearing coarse filtration layer 11 is provided with some sieve apertures 2; Utilize supporting layer 13 to strengthen the protection that essence is filtered filtering layer 12, also play the supporting to inner sleeve, thus when reducing end ring, bulk strength there will not be change simultaneously, this avoid the card owing to end ring design brings or stuck phenomenon; And whole load-bearing coarse filtration layer 11 not only has the effect of load-bearing, also there is the effect of coarse filtration simultaneously, therefore essence filtering layer 12 can be played effective protection.

One end of described screen casing body 1 is provided with threaded connector.

The thickness of described load-bearing coarse filtration layer 11 is 1mm-1.5mm.

The thickness of described essence filter filtering layer 12 is 0.5mm-1.2mm.

The thickness of described supporting layer 13 is 1mm-1.5mm.

Principle of work of the present utility model is: owing to outer field load-bearing coarse filtration layer 11 has the function of coarse filtration, therefore in the function achieving coarse filtration of protection essence filter filtering layer 12 simultaneously, form the husky bridge of first in advance, liquid arrives the two road Sha Qiao that fine sand is blocked in the annular space outside coarse filtration layer and filter bed of essence to be formed by the essence filter of next filtering layer after flowing through initial filter, there is the effect of the husky bridge of twice and twice filtering layer, achieve filtration requirement, and substantially prolongs longevity of sieve tube, support layer 13 simultaneously and strengthen the protection that essence is filtered filtering layer 12, also play the supporting to inner sleeve simultaneously, thus when reducing end ring, bulk strength there will not be change, this avoid the card owing to end ring design brings or stuck phenomenon.

To those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, it is possible to realize the utility model in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and right and wrong are restrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, it is intended that all changes in the implication of the equivalent important document dropping on claim and scope included in the utility model. Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, it is to be understood that, although this specification sheets is described according to enforcement mode, but not each enforcement mode only comprises an independent technical scheme, this kind of narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment through appropriately combined, can also form other enforcement modes that it will be appreciated by those skilled in the art that.

Claims

1. a composite screen pipe, it is characterized in that, comprise screen casing body (1), the tube wall of described screen casing body (1) is made up of load-bearing coarse filtration layer (11), essence filter filtering layer (12) and supporting layer (13) from outside to inside successively, and described load-bearing coarse filtration layer (11) is provided with some sieve apertures (2).

2. composite screen pipe according to claim 1, it is characterised in that, one end of described screen casing body (1) is provided with threaded connector.

3. composite screen pipe according to claim 1, it is characterised in that, the thickness of described load-bearing coarse filtration layer (11) is 1mm-1.5mm.

4. composite screen pipe according to claim 1, it is characterised in that, the thickness of described essence filter filtering layer (12) is 0.5mm-1.2mm.

5. composite screen pipe according to claim 1, it is characterised in that, the thickness of described supporting layer (13) is 1mm-1.5mm.