JPH10180210A - Cleaning utensil for sewerage forcedly feeding line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively remove microorganism films stuck onto the inner pipe wall surface by sealing a magnet in a spheroidal body consisting of a foamed body whose diameter is smaller than that of the smallest diameter part of a sewerage forcedly feeding line passage constituted of a sewerage forcedly feeding line and a forcedly feeding pump so that its specific density may be almost equal to that of water and using it as a cleaning utensil. SOLUTION: This cleaning utensil 1 is constituted of a spheroidal body 2 consisting of a foamed body in which a magnet 3 is sealed so that its specific density may be almost equal to that of water. When cleaning the inside of a sewerage forcedly feeding line, a lot of the cleaning utensils 1 are put in the line part to a forcedly feeding pump, and then the cleaning utensils 1 are carried away downstream while pushed by a flow on the pipe, and the spheroidal bodies 2 are suitably dispersed and carried away downstream, attracted to the pipe wall. At this time, the inner pipe wall is rubbed with the spheroidal bodies 2 by frictional force of the surface of the spheroidal bodies 2 generated by magnetic attraction force to remove microorganism films stuck on the surface. After that, the spheroidal bodies 2 are caught and recovered by a strainer installed at the end of the line and are put in the line from the front side of the pump again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning tool for a sewage pressure pipeline.

[0002]

2. Description of the Related Art In a sewer pipe, microorganisms adhering to the inner surface may reduce sulfates to generate hydrogen sulfide, and hydrogen sulfide causes a bad smell and corrosion of concrete.

[0003] The generation of hydrogen sulfide is generally remarkable in a pressure-feeding pipeline to which oxygen is not supplied, and in some cases, problems relating to malodor and corrosion of concrete have also become apparent. For this reason, various methods have been proposed, such as supplying air into the pipe as a measure for suppressing hydrogen sulfide in the pressure feed pipe (for example, JP-A-7-150612). In addition, the inside of the pipe is cleaned to remove adhering microorganisms. It is said that this is also an effective method.

[0004] As a method of cleaning the inner surface of the pipe, a high-flow washing pipe for supplying high-speed water into the pipe to wash the pipe, or a soft foam having a larger cross-sectional area than the inner face of the pipe is forced into the pipe. Pig wash tubes for insertion are known.

[0005]

However, although the former high-speed washing tube is a method which can be implemented relatively inexpensively, its effect is inferior to that of a pig washing tube in which the inner surface of the tube is directly rubbed and washed. The tube itself has the drawback that the apparatus itself is expensive, and the work is more troublesome than the high flow rate washing tube.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a cleaning capability similar to that of a high-speed washing pipe in a sewage pumping line, while being as easy as a high-flow washing pipe. The purpose of the present invention is to provide a cleaning tool for a sewage pressure pipeline capable of exhibiting the following.

[0007]

In other words, the cleaning tool for a sewage pumping line of the present invention comprises a foam having a diameter smaller than the minimum inner diameter portion in a sewage pumping line constituted by a sewage pumping tube and a pump. The magnet is sealed inside and has a specific gravity substantially equal to that of water.

[0008]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a use state.

The cleaning tool 1 for a sewage pressure feed pipe according to the present invention has a minimum inner diameter portion in a sewage pressure feed pipe (not shown) composed of a sewage pressure feed pipe and a pressure feed pump, for example, an intake port to a pump or discharge. A spherical body 2 made of a foam having a diameter smaller than that of a reduced diameter portion in a pipe such as an outlet and a valve seat opening diameter of a valve portion, wherein a magnet 3 is sealed inside and a specific gravity is substantially equal to that of water. ing.

In the above, a foam synthetic resin such as polyurethane or polystyrene is preferably used as a material constituting the foam. The foam material is soft,
Any of hard materials may be used, and those having irregularities on the surface may be used.

The magnet 3 not only functions as a weight for giving weight to the spherical body 2 made of foam to make the whole specific gravity substantially equal to 1, but also adheres to the tube wall by magnetic force to perform abrasion cleaning of the inner surface.
Therefore, it is preferable to use a magnet having as strong a magnetic force as possible.

FIG. 2 shows a cleaning tool 1 for a sewage pressure pipeline according to the present invention.
Shows the situation where the inside of the pipe is being cleaned. When cleaning the inside of a pipeline, the cleaning tool 1 for a sewage pressure pipeline according to the present invention is put into a pipeline section leading to a pressure pump (not shown).

[0013] The cleaning tool 1 for the sewage pressure feed pipe is formed into a sphere having a diameter smaller than the minimum inner diameter including a pump and a valve in the pipe, so that the sewage pressure feed pipe is not caught in the pipe and is pushed by the flow in the pipe. Flowed downstream.

In addition, since the magnet 3 is embedded inside and the specific gravity is set to approximately 1, the sphere 2 is appropriately dispersed without floating and accumulating at one place in the tube or sedimentation and stagnation. The water is flowed downstream while being adsorbed on the wall 4.

Accordingly, the inner wall of the tube is rubbed by the frictional force of the surface of the sphere 2 generated by the attractive magnetic force, and the attached microbial film is removed. At this time, when the spherical surface is provided with irregularities, the biological film is easily broken by the irregularities.In addition to the direct peeling, the biological film is peeled off by the subsequent water flow from the broken portion as a starting point, and the removal is facilitated. .

The spherical body 2 made of a foamed material is supplementarily collected by a strainer (not shown) provided at the end of the pressure feed pipe, and is again introduced into the pipe from just before the pressure feed pump. In addition, FIG. 2 shows a case where a plurality of cleaning tools 1 for sewage pressure feeding pipelines are inserted into the same pipeline. May be invalidated, so that the spheres 2 are inserted at an interval that sufficiently separates them.

[0017]

As described above, the cleaning tool for a sewage pressure pipeline according to the present invention has a structure in which the surface is a sphere such as a foam, which easily causes friction, and a magnet is embedded therein. The sphere made of foam adheres to the inner surface of the pipe wall by suction and has a specific gravity of about 1, so that it flows along the water flow without stagnation and removes the microbial membrane adhering to the inner surface of the pipe wall over the entire length of the pipe. You can do it.

Therefore, it is possible to exhibit a washing ability close to that of a pig washing tube while being as easy as a high-pressure high-flow washing tube.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing a use state according to the embodiment of the present invention.

[Explanation of symbols]

 1 ... cleaning tool for sewage pressure feed line 2 ... sphere 3 ... magnet

Claims (1)

[Claims] 1. A sphere made of a foam having a diameter smaller than a minimum inner diameter portion in a sewage pumping line composed of a sewage pumping tube and a pumping pump, wherein a magnet is enclosed inside and a specific gravity is substantially the same as that of water. A cleaning tool for a sewage pressure pipeline, wherein the cleaning tool is provided.