CN103418175A

CN103418175A - Filter pipe used for pump

Info

Publication number: CN103418175A
Application number: CN2012101600494A
Authority: CN
Inventors: 陈家明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2013-12-04

Abstract

The invention relates to a filter pipe used for a pump. The filter pipe comprises an outer filter pipe, and an inner filter pipe nested in the outer filter pipe. The upper end of the outer filter pipe is connected with a hollow joint, and the lower end of the outer filter pipe is provided with a cover-shaped outer plug. The pipe wall of the outer filter pipe is provided with outer filter holes which are distributed in a spiral shape along the axial direction. The upper end of the inner filter pipe is connected with the joint, and the lower end of the inner filter pipe is provided with a cover-shaped inner plug. The pipe wall of the inner filter pipe is provided with a plurality of rows of inner filter holes which are evenly distributed along the axial direction. Compared with the prior art, the filter pipe is simple in structure, reasonable in design and convenient in installation, and by adoption of a double-structure design, impurities are effectively removed. Meanwhile, the outer filter holes arranged in the outer filter pipe are distributed in the spiral shape, so that a spiral shape is formed by the fluid between the outer filter pipe and the inner filter pipe, and the substances covered on the inner filter pipe can be effectively removed, and therefore the filtering effect is improved, the maintenance frequency is reduced, and the filter pipe is economical, practical, safe and environmental-friendly.

Description

A kind of pump 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 technology

Water pump, especially immersible 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 filter in water sucking mouth, to prevent from sucking solid matter, but filter type commonly used all exists filter 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, filter effect is outstanding pump screen pipe.

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

A kind of pump 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 filter bores 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.

Described outer screen pipe upper and lower port place is provided with respectively the sawtooth that falls with joint and the interlock of outer plug phase.

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 filter bores on outer screen pipe distributes in the shape of a spiral, make the fluid between outer screen pipe and inner filtration pipe form helical form, effectively remove the covering on the inner filtration pipe, both strengthened filter 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: the 2-joint; 3-inner filtration pipe; The outer screen pipe of 4-; 5-inner filtration hole; Plug in 6-; 7-falls sawtooth; The outer plug of 8-; The outer filter bores of 9-.

The specific 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 pump 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 filter bores 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.

Described outer screen pipe 4 upper and lower port places are provided with respectively the sawtooth 7 with joint 2 and the 8 phase interlocks of outer plug, in case anti-avulsion falls.

The pump housing is in extraction process, liquid is first through outer screen pipe 4, carry out primary coarse filtration, because the outer filter bores 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 filter 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 pump 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 filter bores (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); Described outer screen pipe (4) upper and lower port place is provided with respectively the sawtooth (7) with joint (2) and outer plug (8) phase interlock.