JPH05277453A - Device for discharging foreign matter in pipe - Google Patents

Abstract

PURPOSE:To automatically prevent the adhesion of foreign matter to the inner wall of a strainer in a strainer type foreign matter discharge device used in order to remove foreign matter contained in fluid. CONSTITUTION:A strainer 9 is arranged to the strainer arranging part 7 communicating with an outflow pipe 3 in a vertical direction and the upper and lower parts of the strainer 9 are opened to the inflow part 5 and a foreign matter sedimentation part 8 respectively separated from the strainer arranging part 7. The strainer washing brush 14 scraping off the foreign matter bonded to the inner wall of the strainer 9 is provided in the strainer 9 in a freely rotatable manner and an impeller 16 is attached to the shaft 15 protruding into the inflow part 5 of the strainer washing brush 14 to be rotated by the fluid flowing in an inflow pipe 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-pipe foreign matter discharging device capable of efficiently discharging foreign matter in a pipeline such as waterworks.

[0002]

2. Description of the Related Art In order to collect foreign substances in pipelines such as waterworks when water is passed, a fire hydrant or a discharge facility is used to periodically or temporarily wash and collect pipes, or a Y-type strainer in the middle of the pipeline. There is also an example in which foreign matter is collected by attaching a. However, when using a fire hydrant, although there are many installation locations, the effect of discharging foreign substances is low, and when using a discharge facility, there are few installation locations and only local washing is possible. Further, when the Y-type strainer is used, foreign substances collected on the inner wall of the strainer are likely to be deposited on the strainer and cause clogging, and it is difficult to wash the pipe when passing water.

In order to solve such a problem, an in-pipe foreign matter discharging device as shown in FIG. 4 has been proposed. First, this in-pipe foreign matter discharging device will be described. In FIG. 4, reference numeral 1 denotes a tubular main body, and an inflow pipe 2 and an outflow pipe 3 are coaxially provided at positions facing each other on an upper portion. Reference numeral 4 denotes an upper partition plate which is provided inside the upper portion of the main body 1 to separate the inflow pipe 2 and the outflow pipe 3, and is formed in a bent structure having a step portion, and the lower step surface is substantially along the bottom surface of the inflow tube 2. Is connected to the inner wall of the main body 1, the upper surface is connected to the inner wall of the main body 1 at a position higher than the outflow pipe 3, and the central vertical surface faces the inflow pipe 2 and the outflow pipe 3 and faces the inflow pipe 2. The inflow part 5 is formed in the. The inside of the main body 1 below the upper partition plate 4 is further divided into upper and lower parts by a lower partition plate 6, and a strainer installation portion 7 communicating with the outflow pipe 3 is formed on the upper side and a foreign matter precipitation portion 8 is formed on the lower side.

Reference numeral 9 is a cylindrical strainer vertically provided on the strainer installation portion 7, penetrating the upper partition plate 4 and the lower partition plate 6, respectively, and the upper part is the inflow part 5 and the lower part is the foreign matter precipitation part 8 Open each. Reference numeral 10 denotes a drain pipe provided inside the main body 1 so as to penetrate the partition plates 4 and 6, and an opening at the lower end thereof.
11 is provided close to the bottom surface of the foreign matter settling portion 8, the upper end of which is led out from the main body lid 12 and can be discharged to the outside of the apparatus through a valve 13. Further, the strainer 9 is the partition plates 4 and 6
It is configured to be attachable to and detachable from.

In the above structure, the fluid containing the foreign matter flowing from the inflow pipe 2 into the inflow portion 5 of the main body 1 is in the upper partition plate 4.
It hits the central vertical surface of the and flows into the strainer 9.
Here, the foreign matter is collected by the inner wall of the strainer 9, and the fluid passes through the inner wall of the strainer 9 through the side surface, and the strainer installation portion 7
Flows into the space and flows out from the outflow pipe 3 communicating with this space. On the other hand, the foreign matter collected on the inner wall of the strainer 9 is spontaneously dropped and collected in the foreign matter settling portion 8 below, and this foreign matter is discharged to the outside of the apparatus by opening the valve 13 at a proper time and draining it from the drainage pipe 10.

[0006]

In the strainer type foreign matter discharging device as described above, when foreign matter is collected by the inner wall of the strainer 9, the strainer 9 may be clogged and the pipeline may be blocked. was there.

The present invention solves the above problems, and an object of the present invention is to provide an in-pipe foreign matter discharging apparatus capable of removing foreign matter adhering to the inner wall of the strainer and depositing it in the foreign matter depositing portion to prevent clogging of the strainer. Is to

[0008]

In order to solve the above-mentioned problems, an in-tube foreign matter discharging device of the present invention is provided with an inflow pipe and an outflow pipe coaxially positioned in an upper portion of a cylindrical main body, and inside the main body. The upper and lower partition plates separately provide an inflow part communicating with the inflow pipe, a strainer installation part located below the inflow part and communicating with the outflow pipe, and a foreign matter depositing part located below the strainer installation part. A cylindrical strainer that penetrates the partition plate in the vertical direction is provided in the strainer installation portion so that the upper portion thereof is opened to the inflow portion and the lower portion is opened to the foreign matter precipitation portion, and is accumulated on the strainer inner wall inside the strainer. A strainer cleaning brush for scraping off the foreign matter is rotatably provided, and in order to rotate the strainer cleaning brush, an impeller attached to the strainer cleaning brush is arranged in the inflow section, and the foreign matter is removed. The discharge pipe for discharging the precipitated foreign substances in the sediment portion in which is provided by an opening in the vicinity of the foreign matter precipitation unit bottom.

[0009]

With the above construction, even if foreign matter contained in the inflowing fluid is collected on the inner wall of the strainer and falls to the foreign matter precipitation portion to be collected, even if it is accumulated on the inner wall of the strainer and causes clogging, Since the foreign matter is automatically removed by the strainer cleaning brush that is rotationally driven via the impeller rotated by the inflowing fluid, the foreign matter is prevented from adhering to the inner wall of the strainer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a cross-sectional side view of an in-pipe foreign matter discharging device according to an embodiment of the present invention, FIG. 2 is a partially omitted top view thereof, FIG. 3 is a cross-sectional front view thereof, and those having the same functions as those in FIG. Will be attached and detailed description thereof will be omitted.

1 to 3, 14 is a strainer cleaning brush vertically inserted into the strainer 9,
It is fixed to a shaft 15 which is appropriately rotatably supported. Reference numeral 16 denotes a four-plate impeller for rotating the strainer cleaning brush 14, which is attached to shafts 15 projecting into the inflow portion 5 in directions perpendicular to each other. As shown in FIG. 2, the inflow pipe 2 and the outflow pipe 3 are coaxially provided at positions facing each other in the tangential direction with respect to the main body 1, and the fluid flowing from the inflow pipe 2 is a single impeller. The strainer cleaning brush 14 is configured to rotate about the shaft 15 in the strainer 9 when it hits the shaft 16.

With the above-described structure, the fluid flowing from the inflow pipe 2 changes its direction downwards on the central vertical surface of the upper partition plate 4 as in the conventional one, and the foreign matter is collected on the inner wall of the strainer 9 and naturally falls. More foreign matter is deposited at the bottom of the foreign matter settling section 8
Settles in. At this time, the impeller 16 is rotated by the fluid flowing in from the inflow pipe 2 in the tangential direction of the main body 1, and the strainer cleaning brush 14 is also rotated accordingly, so that the foreign matter adhering to the inner wall of the strainer 9 is automatically transferred. The strainer 9 is prevented from being scraped off and clogging the strainer 9.

[0013]

As described above, according to the present invention, the foreign matters contained in the fluid from the inflow pipe are collected by the inner wall of the strainer, and a large amount of the foreign matters settle in the lowermost foreign matter settling portion due to the natural fall. At this time, the impeller rotates due to the fluid flowing from the inflow pipe, and at the same time, the strainer cleaning brush also rotates inside the strainer, so that the foreign matter adhering to the inner wall of the strainer is automatically scraped off, causing clogging and There is no fear of blockage.

[Brief description of drawings]

FIG. 1 is a sectional side view of an in-tube foreign matter discharging device according to an embodiment of the present invention.

FIG. 2 is a partially omitted top view of the in-pipe foreign matter discharging device according to the embodiment of the present invention.

FIG. 3 is a front cross-sectional view of an in-tube foreign matter discharging device according to an embodiment of the present invention.

FIG. 4 is a cross-sectional side view of a conventional foreign matter discharging device in a pipe.

[Explanation of symbols]

 1 main body 2 inflow pipe 3 outflow pipe 4 upper partition plate 5 inflow part 6 lower partition plate 7 strainer installation part 8 foreign matter precipitation part 9 strainer 10 drain pipe 14 strainer cleaning brush 15 shaft 16 impeller

Claims (1)

[Claims] 1. An inflow pipe and an outflow pipe, which are coaxially positioned, are provided in an upper part of a cylindrical main body, and an inflow part communicating with the inflow pipe is provided inside the main body, and an inflow part located below the inflow part and communicating with the outflow pipe. Upper and lower partition plates for separating the strainer installation portion and the foreign matter sedimentation portion located therebelow are provided, and the strainer installation portion is vertically penetrated through the partition plate to open at the inflow portion and the foreign matter sedimentation portion, respectively. A cylindrical strainer is provided, and a strainer cleaning brush rotatably installed inside the strainer having an impeller arranged in the inflow section at the top is provided, and an opening is provided near the bottom surface of the foreign matter accumulation section. An in-pipe foreign matter discharging device comprising a drainage pipe having the same.