CN103423213A

CN103423213A - Filter pipe

Info

Publication number: CN103423213A
Application number: CN2012101615555A
Authority: CN
Inventors: 陈家明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2013-12-04

Abstract

A filter pipe comprises an outer filter pipe and an inner filter pipe nested into the outer filter pipe. The upper end of the outer filter pipe is connected with a hollow connector, and the lower end thereof is provided with a cover-shaped outer plug. Outer filter holes spirally distributed along the axial direction are formed on the pipe wall of the outer filter pipe. The upper end of the inner filter pipe is connected with a connector, and the lower end thereof is provided with a cover-shaped inner plug. A plurality rows of inner filter holes are evenly distributed along the axial direction on the pipe wall of the inner filter pipe. Compared with the prior art, the filter pipe is simple in structure, reasonable in design, convenient to mount, economical and practical, and safe and environmentally friendly, and impurity can be filtered effectively through the double structure. Due to the fact that the outer filter holes in the outer filter pipe are spirally distributed, fluid between the outer filter pipe and the inner filter pipe is spiral, covering on the inner filter pipe can be removed effectively, filter effect is enhanced, and maintenance frequency can be reduced.

Description

A kind of screen pipe

Technical field

The present invention relates to a kind of screen pipe, relate in particular to a kind of pump screen pipe.

Background technique

Water pump, especially submersible pump, in use, the pump housing is in extracting liquid, also can will be entrained in solid impurity in liquid in the lump in suction pump, thereby, to the pump housing, especially impeller etc. be caused to great destruction, the pump housing commonly used generally all can arrange filtrating equipment in water sucking mouth, to prevent from sucking solid matter, but filter type commonly used all exists filtering effect not good, or filter screen holds susceptible to plugging phenomenon, make frequency of maintenance high, must often clean and maintain.

Summary of the invention

For above-mentioned technological deficiency, technical problem to be solved by this invention is to provide a kind of simple in structure, reasonable in design, filtering effect is outstanding screen pipe.

In order to solve the problems of the technologies described above, the present invention takes following technological scheme:

A kind of screen pipe, comprise outer screen pipe and be nested in the inner filtration pipe in outer screen pipe, described outer screen pipe upper end is connected with hollow joint, lower end is provided with hood-like outer plug, be provided with the outer filtering hole distributed in the shape of a spiral vertically on the tube wall of outer screen pipe, described inner filtration pipe upper end is connected with joint, and lower end is provided with hood-like interior plug, is evenly distributed with vertically multiple row inner filtration hole on the tube wall of this inner filtration pipe.The external-connected port place of described joint is provided with the convex shape joint sealing circle for sealing.

The present invention compared with prior art, simple in structure, reasonable in design, easy for installation, by adopting the design of dual structure, effectively filter out impurity, simultaneously, because the outer filtering hole on outer screen pipe distributes in the shape of a spiral, make the fluid between outer screen pipe and inner filtration pipe form helical, effectively remove the cover on the inner filtration pipe, both strengthened filtering effect, can reduce frequency of maintenance again, economical and practical, safety and environmental protection.

The accompanying drawing explanation

Accompanying drawing 1 is structural representation of the present invention.

Shown in figure, be: 1-joint sealing circle; The 2-joint; 3-inner filtration pipe; The outer screen pipe of 4-; 5-inner filtration hole; Plug in 6-; The outer plug of 8-; The outer filtering hole of 9-.

Embodiment

For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the invention will be further described.

A kind of screen pipe as shown in Figure 1, comprise outer screen pipe 4 and be nested in the inner filtration pipe 3 in outer screen pipe 4, described outer screen pipe 4 upper ends are connected with hollow joint 2, lower end is provided with hood-like outer plug 8, be provided with the outer filtering hole 9 distributed in the shape of a spiral vertically on the tube wall of outer screen pipe 4, described inner filtration pipe 3 upper ends are connected with joint, and lower end is provided with hood-like interior plug 6, are evenly distributed with vertically multiple row inner filtration hole 5 on the tube wall of this inner filtration pipe 3.The external-connected port place of described joint 2 is provided with the convex shape joint sealing circle 1 for sealing, makes between screen pipe and pump housing drinking-water pipe to keep sealing.

The pump housing is in extraction process, liquid is first through outer screen pipe 4, carry out primary coarse filtration, because the outer filtering hole 9 on outer screen pipe 4 distributes in the shape of a spiral, make liquid evenly flow in the space between screen pipe 4 and inner filtration pipe 3 outside in the shape of a spiral, effectively rinse out the solid impurity on inner filtration pipe 3, prevent that the inner filtration hole 5 on inner filtration pipe 3 tube walls is blocked, 5 pairs, inner filtration hole liquid realizes that secondary carefully filters, further improve filtering effect, liquid after making to filter enters in the pump housing through joint 2, reduce the frequency of maintenance of screen pipe and the pump housing, improved pump efficiency.

Above-described embodiment of the present invention, do not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included in claim protection domain of the present invention.

Claims

1. a screen pipe, comprise outer screen pipe (4) and be nested in the inner filtration pipe (3) in outer screen pipe (4), it is characterized in that: described outer screen pipe (4) upper end is connected with hollow joint (2), lower end is provided with hood-like outer plug (8), be provided with the outer filtering hole (9) distributed in the shape of a spiral vertically on the tube wall of outer screen pipe (4), described inner filtration pipe (3) upper end is connected with joint, lower end is provided with hood-like interior plug (6), is evenly distributed with vertically multiple row inner filtration hole (5) on the tube wall of this inner filtration pipe (3); The external-connected port place of described joint (2) is provided with the convex shape joint sealing circle (1) for sealing.