JPS63224709A - Device for removing contaminant in distributing water pipeline - Google Patents

Abstract

PURPOSE:To always keep the removal efficiency at a filter part constant, by appropriately discharging the contaminant when the holdup volume of the removed contaminant reaches a specified value, and coping with the water flowing in the pipeline in both directions. CONSTITUTION:A main collector body 2, main-pipe check valves 3a and 3b, bypass pipes 4a and 4b, bypass check valves 5a and 5b, a couple of filter parts, discharge valves 7a and 7b, and gate valves 9a and 9b are provided between the upstream pipeline 1a and downstream pipeline 1b of a pipeline 1 constituting the distributing water pipeline. For example, water A passes through the filter part of the bypass pipe 4a, flows into the main collector body 2, and then flows into the pipeline 1b. When the holdup volume of the contaminant in the filter part reaches a specified value and the value is detected by a pressure gage 10c, etc., a controller 11 is actuated, the discharge valve 7a is opened, and the contaminant is discharged to the outside of the pipeline along with the water A. The controller 11 is actuated after a specified time, and the operation returns to normal.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for removing contaminants in water distribution pipes.

BACKGROUND OF THE INVENTION Conventionally, water distribution pipes have been frequently used when water taken in upstream is used exclusively for downstream facilities. However, if foreign matter such as mud gets mixed into the water distribution pipes, this contaminant will be transported along with the water to the facilities downstream9, creating problems that will impede the use of the water supply at the facilities. Therefore, a device to remove contaminants was installed in the middle of the water distribution pipe. Then, at predetermined intervals when it is estimated that the amount of accumulated contaminants removed in the apparatus reaches a predetermined amount, the contaminants in the apparatus are manually discharged.

Problems to be solved by the invention However, the increase in the amount of contaminants retained is not uniform;
There is a problem in that the predetermined amount is reached within a shorter period of time than the predetermined period, resulting in a decrease in the removal efficiency of contaminants and an increase in pressure loss within the device.

The present invention solves the above-mentioned problems by providing a contaminant removal device that appropriately discharges contaminants from inside the device when the accumulated amount of removed contaminants reaches a predetermined amount. With the goal.

Means for Solving the Problems In order to solve the above four points, the present invention provides a method for installing a sealed tank in the middle of a water distribution pipe through a main pipe check valve that prevents water from flowing into the tank. A pair of bypass pipes are provided in communication with the water distribution pipes on the upstream side and the downstream side 1, and one end of both bypass pipes is connected to the water distribution pipes on the upstream side and the downstream side, respectively. A bypass check valve is provided upstream and downstream of the main pipe check valve and connected via a bypass check valve that prevents backflow to the water distribution pipe, and the pipe wall of the portion of both bypass pipes located inside the tank body is made water permeable. In addition to forming a filter portion that can remove contaminants, seven discharge pulps are provided at the other ends of both bypass pipes.

Operation In the above configuration, under normal conditions, that is, when both discharge valves are open, the flow flowing through the upstream water distribution pipe, and the contaminants transferred by the water, communicate with the flowing water to the upstream water distribution pipe. It flows into one bypass pipe.

At this time, the main check valve interposed in the upstream water distribution pipe prevents the flowing water and contaminants from flowing into the tank body, and the bypass check valve interposed in one bypass pipe allows the flowing water to pass through. is allowed.

Then, the flowing water passes through the filter section of the bypass pipe and flows into the tank body, and then flows into the water distribution pipe on the downstream side.

At this time, the main check valve interposed in the downstream water distribution pipe allows the flowing water to flow out of the tank body, and the bypass check valve interposed in the other bypass pipe communicating with the downstream water distribution pipe The stop valve prevents Ura 4 water from passing downstream or to the side. Further, contaminants are collected and removed by the filter section of one bypass pipe, and remain in the one bypass pipe. Then, when the accumulated contaminants have accumulated to a permissible limit, the discharge pulp of one bypass pipe is opened to be in a discharge state. In this discharge state, the contaminants staying in one of the bypass pipes are discharged out of the pipe along with the water flowing from the water distribution pipe on the upstream side 1, following the discharge pulp. After the discharge of the contaminants is completed, the discharged pulp is closed to perform VC ashing in a normal state. Next, when the direction of the flow of water in the water distribution pipe is reversed, the main check valve, which was previously located on the downstream side of the tank body and allowed water to flow out of the tank body, reverses. It acts to prevent the first person from entering the tank body against the flow of rushing water, and also bypasses the other bypass pipe that is also located on the downstream side and prevents the flowing water from passing downstream. A stop valve allows passage of water in a reverse direction.

For this purpose, the flowing water and the contaminants flow into the other bypass pipe, and the flowing water flows over the filter section of the other bypass pipe and into the tank body. Contaminants are also removed by the filter section of the other bypass pipe. Then, the Sai1 water that has flowed into the tank body is now allowed to flow out of the sacred body due to the reverse flow of the main pipe check valve, which was previously located on the upstream side of the tank body. At the same time, the bypass check valve of one of the bypass pipes, which was also located on the upstream side, distributes contaminants that have accumulated in the filter section of one of the bypass pipes in order to prevent the passage of water whose flow direction has been reversed. Ura 1 is added to the existing upstream water distribution pipeline without causing backflow into the pipe.
people The contaminants remaining in the flange of the other bypass pipe are discharged by opening the discharge pulp of the other bypass pipe. Therefore, contaminants in the flowing water can be collected and removed in response to the flowing water flowing in both directions within the water distribution pipe.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIGS. 1 to 3, a collector main body 2, which is a sealed tank body, is located in the middle of a pipe 1 forming a water distribution pipe, and is connected to the upstream and downstream sides via main pipe check valves 3a and 3b. side piping 1
It is provided in communication with a and lb. Further, the main tube check valves 3a and 3b act to stop water flowing through the pipe 1 toward the collector body 2 from flowing into the collector body 2 by pJ1. A pair of bypass pipes 4a pass through the collector body 2.

4b connects one end of the -10,000 bypass pipe 4a upstream, 141I
It is connected upstream of the main tube check valve 3a of the piping la, and one end of the other bypass tube 4b is connected to the downstream side of the main tube check valve 3b of the downstream piping 1b. Further, both bypasses "d4a, 4b VC" are bypass check valves 5a, respectively.

5b is interposed, and the bypass check valves 5a and 5b act to prevent backflow to the pipe 1. The portions of both bypass pipes 4a and 4b located inside the collector body 2 are inserted through the collector body 2 in a vertical direction with respect to the horizontal piping IK, and the filters forming the pipe body Sections 6a and 6b are interposed. Filter parts 6a, 6b
The pipe wall has water permeability and removes contaminants, and is made of stainless steel wire gauze of about 100 meshes. In addition, both bypass pipes 4a and 4b and 14i
, there is an electric discharge pulp 7a.

Discharge pipes 8a and 8b with a pipe 7b interposed therebetween are connected to each other. There are electrically operated partitions that can be opened and closed upstream of the main pipe check valve 3a of the upstream piping 1b and downstream of the main pipe check valve 3b of the downstream piping 1b. /pu 9a, 9b are interposed.And,
The pressure gauges 10a, 10b, 10c are provided in both pipe tubes 4a, 4b and the collector body 2, respectively, and the discharge pulps 7a, 7b and the pressure gauges 10a,
10b, 10c and partition pulps 9a, 9b are electrically connected to a control device 11. The control device 11 controls the pressure value downstream of the filter section 6a of one of the bypass pipes 4a detected by the pressure gauge 10c of the collector body 2, or
The discharge pulp 7a of one bypass pipe 4a is appropriately adjusted based on the pressure difference between the upstream side and the downstream side of the filter section 6a, which is detected by the upstream pressure gauge 10a and the pressure gauge 10c of the collector body 2. and the pressure gauge 10b when the downstream partition pulp 9b is opened and closed and the flow of water in the pipe 1 is reversed.

10c for the filter part 6b of the other bypass pipe 4b, based on the downstream pressure value detected and the pressure difference between the upstream and downstream sides, the discharge pulp 7b of the other bypass pipe hole and the upstream side are detected. The partition pulp 9a is opened and closed.

The operation of the above configuration will be explained. In a normal state, that is, in a state in which both discharge pulps 7a and 7b are closed and both partition valves 9a and 9b are opened, the flowing water flowing through the upstream piping 1a (contaminants transferred by Al are transported upstream together with the flowing water). 111111 piping 1
It flows into one of the bypass pipes 4a which communicates with the pipe a. At this time, the main pipe check valve 3a interposed in the upstream piping 1a prevents the flowing water particles and contaminants from flowing into the collector body 2,
Bypass check valve 5a interposed in one bypass pipe 4a
Let the prisoner pass by. And Ura.

After the water passes through the filter section 6a km of this bypass pipe 4a and flows into the collector body 2, it flows into the downstream pipe 1b.
flows into. At this time, the main pipe check valve 3b interposed in the downstream piping 1b prevents the flow of trapped water from flowing out of the collector body 2, and the other bypass pipe 4 communicates with the downstream piping 1b.
Bypass check valve 5b riiff, water (
5) to prevent passage to the downstream side. Further, the contaminants are collected and removed by the filter portion 6a of one bypass 94a, and remain in one bypass 'f4a. Then, while the contaminants remain in one bypass V4a,
As the water adheres to the filter section 6a of the bypass pipe 4a, the pressure loss of the flowing water (3) passing through the filter section 4a increases, and the collector main body 2 on the downstream side of the filter section 6a increases.
The internal pressure decreases. Then, as the filter section 6a further collects and removes the contaminants, the pressure value inside the collector body 2 downstream of the filter section 6a detected by the pressure gauge 10c, or the pressure value detected by the pressure gauges 10a, 10c. The value of the difference between the pressure in the gla on the upstream side of the filter part 6a and the pressure in the collector body 2 yen on the upstream side from the filter part 6a is
When a pre-set predetermined value is reached, i.e. a value that results from contaminant retention within the permissible limit,
The control device 11 is activated, and the discharge pulp 7a of the bypass pipe 4a, where the contaminants are retained, is placed in an open discharge state. In the discharge state, one bypass pipe 4a
Ic 1 fft contaminant is 1! on the upstream side! ! Ii
! It is discharged to the outside of the pipe through the discharge pipe 8a and the discharge pulp 7a together with the flowing water particles flowing from the pipe 1a. At this time, the flowing water particles pass through the filter part 6a and also flow downstream, so the collected and removed contaminants are constantly passed from the upstream piping 1a to the downstream piping 1b, which is called a state of uninterrupted water supply. It can be discharged under certain conditions.

In addition, by closing the partition pulp 9b on the downstream side as necessary, it is possible to eliminate trapped water flowing out from inside the filter part a into the collector body 2, and to strip off contaminants attached to the filter part 6a. let Furthermore, at this time discharge /<A
By opening the pipe 7be, contaminants collected by the filter section 6b can be simultaneously discharged when the flow in the pipe 1, which will be described later, is reversed. Then, after a certain period of time, the control device 11 is activated to close the discharge pulp 7a and open the partition pulp 9b to restore the normal state. Next, when the direction of the flow of water trapped flowing through the pipe 1 is reversed, the main tube check valve 3b, which had previously allowed flow out of the collector body 2, reverses the flow. Flow 1 water [F])
The bypass check valve 5b of the other bypass pipe 4b, which is also located on the downstream side and prevents the flowing water from flowing into the tank body 2, is in the flow direction. reversed flow (allowing old flow of Bl. For this,
The flowing water (Bl and contaminants flow into the other bypass pipe 4b, and the flowing water (Bl flows into the filter section 6 of the other bypass pipe 4b)
b and flows into the collector body 2.

Further, the contaminants are removed from the filter section 6b of the other bypass pipe 4b.
removed by The flowing water (Bl) that has flowed into the collector main body 2 is the flow of water (Bl) in which the main pipe check valve 3a, which has been located upstream of the collector main body 2, has been reversed. The bypass check valve 5a of one of the bypass pipes 4a, which was also located on the upstream side, acts to allow flow out of the main body 2, and prevents the flow of water (Bl) from passing in the reverse direction. Therefore, the contaminants staying in the filter section 6a of one of the bypass pipes 4a are not allowed to flow back into the own pipe 1, and the upstream Da'i #1
flows into a. Contaminants remaining in the filter portion 6b of the other bypass pipe 4b are discharged out of the pipe 1 in the same manner as described above. Therefore, it is possible to collect and remove contaminants in the flowing water (A1.
, 6b can be simultaneously discharged.

Furthermore, in this embodiment, the bypass pipes 4a, 4b and the filter parts 6a, 6b located inside the collector body 2 are not provided by vertically passing through the collector body 2.
The installation space of this device can be made small.

Effects of the Invention As described above, according to the present invention, the contaminants that are collected and removed by the filter section and remain in the bypass pipe are removed in a timely manner and without interruption when the amount of contaminants accumulated in the bypass pipe reaches the permissible limit. It can be discharged out of the pipe in a stable condition, and can also handle running water that flows in both directions within the water distribution pipe. Moreover, by the above, the removal efficiency of the filter section can always be kept constant.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram showing one embodiment of the present invention, Fig. 2 is a side view taken along arrow a-a in Fig. 1, and Fig. 3 is a bb-b in Fig. 2.
FIG. la, lb...Piping, 2...Collector body, 3a,
3b... Main tube check valve, 4a, 4b... Bypass pipe, 5a, 5b... Bypass check valve, 6a, 6b.
...Filter section, 7a, 7b...Discharge pulp, 9a. 9b...Gate valve, 10a, lOb, 10c.
...Pressure gauge, 11...Seisaku 11.

Claims (1)

[Claims] 1. A tank body sealed in the middle of a water distribution pipe is communicated with upstream and downstream water pipes via a main pipe check valve that prevents water from flowing into the tank body. A pair of bypass pipes penetrating the tank body is provided, with one ends of both bypass pipes upstream and downstream of the main pipe check valves of the upstream and downstream water distribution pipes, respectively, to prevent backflow to the water distribution pipes. The wall of the portion of both bypass pipes located inside the tank body is formed into a filter portion that has water permeability and can remove contaminants. A device for removing contaminants in a water distribution pipe, characterized in that a discharge valve is provided at each other end of the bypass pipe. 2. The bypass pipe and filter section located inside the tank body,
2. The device for removing contaminants in a water distribution pipe according to claim 1, wherein the device is formed in a direction perpendicular to a horizontal water distribution pipe.