JPH0422807Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for removing contaminants in water distribution pipes.

BACKGROUND ART Conventionally, water distribution pipes have been frequently used to guide water taken upstream to downstream facilities.

Problems that the invention aims to solve According to the conventional configuration described above, if foreign matter such as mud gets mixed into the water distribution pipe, this foreign matter will be transferred along with the water to the facilities downstream, making it difficult to use the water supply. This was an obstacle in doing so.

The present invention solves the above-mentioned problems, and aims to provide a device for removing contaminants in a water distribution pipe, which removes contaminants in the water distribution pipe with a simple structure.

Means for Solving the Problems In order to solve the above problems, the present invention interposes a pair of main valves in the middle of the water distribution pipe and a pair of filters disposed between the two main valves,
The water distribution pipe between the main valve on one side and the filter on the other side, and the water distribution pipe between the main valve on the other side and the filter on the other side are provided with discharge pipes that communicate with each other via discharge valves, and both filters are connected to each other. Bypass pipes are provided which communicate with the water distribution pipes between the main valves and the water distribution pipes on the opposite side of the filters with both main valves as boundaries, respectively, via bypass filters.

Effect In the above configuration, normally both main valves are open and the discharge valve and bypass valve are closed. In this state, contaminants transferred by the water flow from the upstream side of the water distribution pipe cannot pass through one filter located on the upstream side and remain on the upstream side of the filter, and the water flow passes through the filter and flows downstream. It flows to the side. Next, when discharging contaminants, both main valves are closed, and one discharge valve and bypass valve located on the upstream side are opened. In this state, water flows through the bypass pipe from the downstream side of one filter to the upstream side of the filter, entrains contaminants adhering to the upstream side of the filter, and flows out of the water distribution pipe through the discharge pipe. Furthermore, when the direction of the water flow flowing through the water distribution pipe is reversed, the filter, discharge valve, and bypass valve on the other side are operated to remove and discharge contaminants in the same manner as described above.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. In FIG. 1, a pair of main valves 2a, 2b and a pair of filters 3 disposed between the two main valves 2a, 2b are disposed in the middle of a water distribution pipe 1.
a and 3b are interposed. In addition, the water distribution pipe 1 between the upstream main valve 2a and the upstream filter 3a
And, a discharge pipe 5 is provided, which has bifurcated branches 4a and 4b communicating with each of the water distribution pipes 1 between the downstream main valve 2b and the downstream filter 3b, and the branch passage 4a of the discharge pipe 5. , 4b are provided with discharge valves 6a, 6b, respectively. Furthermore, the bypass pipe 7 is connected to the upstream side of the main valve 2a on the water distribution pipe 1 and the downstream side of the downstream side main valve 2b, and a pair of bypass valves 8a and 8b are interposed in the middle of the bypass pipe 7. A bypass pipe 7 between bypass valves 8a and 8b is provided in communication with a water distribution pipe 1 between both filters 4a and 4b.

The operation of the above configuration will be explained below.
Normally, both main valves 2a, 2b are opened, and both bypass valves 8a, 8b and both discharge valves 6a, 6b are closed. In this state, the contaminants transferred by the water flow A from the upstream water distribution pipe 1 cannot pass through the upstream filter 3a and remain on the upstream side of the filter 3a. On the other hand, the water stream from which contaminants have been removed flows downstream. Next, at regular intervals (before the filter becomes clogged), the discharge valve 6a is opened to discharge the contaminants that have accumulated on the upstream side of the filter 3a along with the water flow. Furthermore, both main valves 2a, 2b
is closed and the bypass valve 8a is opened to allow water to flow through the bypass pipe 7 from the downstream side to the upstream side of the filter 3a. At this time, the water flow is filtered through filter 3.
a. Wash away the contaminants adhering to the upstream side surface and discharge the contaminants out of the water distribution pipe through the discharge pipe 5. Also,
Even if the direction of the water flow flowing through the water distribution pipe 1 is reversed, the same effect as described above can be obtained by operating the downstream filter 3b, bypass valve 8b, and discharge valve 6b.

Effects of the Invention As described above, according to the present invention, contaminants in the water distribution pipe can be removed at all times by the filter provided in the water distribution pipe, and the contaminants can be discharged from the discharge pipe in a timely manner. Moreover, the water flow is guided to the bypass pipe,
By passing water from the downstream side of the filter to the upstream side, the filter surface can be cleaned. Furthermore, it is possible to cope with a case where the direction of the water flow flowing through the water distribution pipe is reversed.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention. 1...Water pipe, 2a, 2b...Main valve, 3a, 3b...Filter, 5...Discharge pipe, 6
a, 6b...Discharge valve, 7...Bypass pipe, 8
a, 8b...Bypass valve.

Claims (1)

[Scope of utility model registration request] A pair of main valves and a pair of filters arranged between the two main valves are interposed in the middle of the water distribution pipe, and the water distribution pipe between the main valve on one side and the filter on the other side and the main on the other side are interposed. A discharge pipe is provided that communicates with the water distribution pipe between the valve and the filter on the other side via a discharge valve, and communicates with the water distribution pipe between both filters, and is opposite to the filter that borders both main valves. A contaminant removal device in a water distribution pipe, characterized in that a bypass pipe is provided that communicates with each of the side water distribution pipes via a bypass valve.