JPS63267410A - Equipment for removing contaminant in water distribution duct - Google Patents

Abstract

PURPOSE:To always hold removal efficiency of contaminant in a filter part constant by discharging the contaminant which is collected and removed with the filter part and stopped in a bypass pipe to the outside of the duct properly in a non-water failure state at a point of time when the stagnant reaches tolerance limit. CONSTITUTION:In an ordinary state, flowing water A flowed through a pipeline 1a of the upstream side is introduced into a bypass pipe 3a and thereafter introduced into a pipeline 1b of the downstream side via a filter part 4a, a collector main body 2, a filter part 4b and the other bypass 3b. When the pressure value in the above- mentioned collector main body 2 which is sensed with a pressure gage 7c reaches previously preset prescribed value, a controlling device 8 is actuated and such a state that the discharge valve 5a of the bypass pipe 3a in which contaminant is stagnated is opened is caused and the contaminant stagnated in the bypass 3a is passed through a discharge pipe 6a and a discharge valve 5a together with the above-mentioned flowing water A and discharged to the outside of the duct. After the constant time period elapses, the controlling device 8 is actuated and the discharge valve 5a is closed and this equipment is recovered to the ordinary state.

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 to guide water taken in upstream to 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 downstream.
There is a problem that becomes an obstacle when using the water supply at the facilities, so a device to remove contaminants has been inserted in the middle of the water distribution pipe. Then, at predetermined intervals when it is estimated that the accumulated amount of the contaminants removed in the device reaches a predetermined amount, the contaminants in the device 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, and aims to provide a contaminant removal device that appropriately discharges the contaminants from inside the device when the retained amount of the removed contaminants reaches a predetermined amount. purpose.

Means for Solving the Problems In order to solve the above problems, the present invention provides a system in which a sealed tank body and a bypass pipe provided through the tank body are provided in the middle of a water distribution pipe. One end is connected to an upstream water distribution pipe, and the tank body is provided in communication with a downstream water distribution pipe, and the pipe wall of the portion of the bypass pipe located inside the tank body has water permeability. and a pressure gauge capable of detecting the pressure in the water distribution pipe on the upstream and downstream sides of the filter section, the bypass pipe having a discharge valve provided at the other end of the bypass pipe and capable of removing contaminants. established,
A control device is provided that opens and closes the discharge valve as appropriate based on the pressure value downstream of the filter section detected by the pressure gauge or the value of the pressure difference between the upstream side and the downstream side of the filter section. It is.

Operation In the above configuration, in a normal state, that is, a state in which the discharge valve is closed (here, contaminants transported by the flowing water flowing through the upstream water distribution pipe flow into the bypass pipe together with the flowing water. The flowing water passes through the filter section of this bypass pipe and flows into the tank body, and then flows into the water distribution pipe on the downstream side.In addition, contaminants are collected and removed by the filter section of the bypass pipe, and then enter the bypass pipe. stay.

As the contaminants stay in the bypass pipe and adhere to the filter section of the bypass pipe, the pressure loss of the flowing water that passes through this filter section increases.

The pressure within the water distribution pipe on the downstream side of the filter section decreases. Then, as the filter section further progresses in collecting and removing contaminants, the pressure value in the water distribution pipe downstream of the filter section detected by the pressure gauge, or the pressure value in the water distribution pipe on the upstream and downstream sides of the filter section When the value of the pressure difference in the water pipe reaches a predetermined predetermined value, that is, the value resulting from the accumulation of contaminants within the permissible limit,
The control device operates, and the discharge valve of the bypass pipe in which the contaminants are retained is opened to be in a discharge state. In the discharge state, the contaminants remaining in the bypass pipe are discharged to the outside of the pipe through the discharge valve together with the water flowing from the upstream water distribution pipe.

At this time, the running water passes through the filter section and flows downstream, so the collected and removed contaminants are constantly passed from the upstream water distribution pipe to the downstream water distribution pipe, which is called a continuous flow. It can be discharged in water. Then, after a certain period of time, the control device is activated to close the discharge valve and return to the normal state of deafness.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In Figures 1 to 8, in the middle of a pipe l that is laid in the soil and forms a water distribution pipe, there is a collector body 2 that forms a sealed tank body, and a collector body 2 that passes through the collector body 2. A pair of bypasses ff8a and sb are provided.

One end of one bypass pipe 3a is connected to piping 1a on the upstream side, and one end of the other bypass pipe 3a is connected to piping 1b on the downstream side. both bypasses 98a,
Filter portions 4a and 4b in the form of tubes are interposed in the portion of the filter 8b located inside the collector body 2. The filters 4a and 4b have tube walls that are permeable to water and can remove contaminants, and are made of stainless steel of about 100 mesh. In addition, exhaust pipes 6a and 6b with electrically operated exhaust valves 5a and 5b interposed therebetween are connected to the other ends of both bypasses i8a and 8b, respectively.

The upstream piping 1a, the downstream piping 1b, and the collector main body 2 are provided with pressure gauges 7a, 7b, and 7c that can detect the pressure inside each pipe. The discharge valves 5a, 5b and pressure gauges 7a, 7b, 7c are electrically connected to the control device 8. , 1III control device 8 detects the pressure value downstream of the filter section 4a of one of the bypass pipes 8a detected by the pressure gauge 70 of the collector body 2, or the pressure value between the pressure gauge 7a on the upstream side and the collector body 2. The discharge valve 5 of one of the bypass pipes 8a is adjusted as appropriate based on the value of the pressure difference between the upstream side and the downstream side of the filter section 4a detected by the pressure gauge 7c.
When a is opened and closed and the flow of water in the pipe 1 is reversed, the other bypass w is detected by the pressure gauges 7b and 7c.
3b, the discharge valve 5b of the other bypass pipe 3b is opened and closed based on the detected downstream pressure value and the value of the pressure difference between the upstream side and the downstream side. .

The operation of the above configuration will be explained. In a normal state, that is, when both discharge valves 5a and 5b are closed, contaminants transferred by the flowing water Alζ flowing through the upstream pipe 1a are transferred together with the flowing water A to the bypass pipe 3a.
flows into. Then, the flowing water A passes through the filter part 4a and flows into the collector body 2, and then flows into the other bypass pipe 3.
It passes through the filter section 4b of the filter part 4b, passes through the other bypass pipe 8b, and flows into the downstream pipe lb. Further, the contaminants are collected and removed by the filter portion 4a of one bypass pipe 1a, and remain in one bypass pipe sa. As the contaminants accumulate in one bypass pipe 8a and adhere to the filter part 4a of this bypass fl 8a, the pressure loss of the flowing water A passing through the filter part 4a increases, and the filter part 4a increases. The pressure inside the collector body 2 on the downstream side decreases. Then, as the filter section continues to collect and remove contaminants, the pressure value in the collector body 2 downstream of the filter section 4a is detected by the pressure gauge 7C, or the pressure value is detected by the pressure gauges 7a and 7c. , the value of the difference between the pressure in the pipe lb upstream from the filter part 4a and the pressure in the collector main body 2 downstream from the filter part 4a is a preset predetermined value, that is, the contaminants remain within the permissible limit. When the resulting value is reached, the control device 8 is actuated to remove one of the bypass pipes in which the contaminants are retained.
The discharge valve 5a is in an open discharge state. In the discharge state, the contaminants remaining in one of the bypass pipes 8a are discharged to the outside of the pipe through the discharge pipe 6a and the discharge valve 5a together with the flowing water A flowing from the upstream pipe 1a. At this time, the flowing water A passes through the filter part 4a and also flows to the lower 51ε side, so that the collected and removed contaminants are constantly passed from the upstream piping 1a to the downstream piping 1b, so-called It can be discharged without water interruption. After a certain period of time, the control device 8 is activated to close the discharge valve 5a and return to the normal state. next,
When the flow direction of the flowing water A flowing through the distribution pipe is reversed, contaminants are removed by the filter section 4b of the other bypass pipe 8b, and the above-mentioned effect is performed based on the pressure value detected by the pressure gauges 7b and 7c. Contaminants are discharged out of the pipe in the same way. Therefore, it is possible to cope with the flowing water B flowing in the opposite direction in the pipe l. However, running water A
Alternatively, it is assumed that the accumulated contaminants are discharged once before the flow of B changes.

Next, FIGS. 4 and 5 show another embodiment of the present invention, in which a vertical collector body 12 is installed in the middle of the pipe 11, and a 1a dynamic partition is installed in the downstream pipe 11a. A bypass pipe 14 is provided connected to the collector body 18 via a valve 18, and the bypass pipe 14 is inserted through the collector body 12 in a vertical direction to the horizontal piping 11. This vertical portion is formed in the filter section 15. One end of the bypass pipe 14 is connected to the upstream pipe 11b.
The other end of the bypass pipe 15 is connected to a discharge pipe 17 with an electrically operated discharge valve 16 interposed therebetween. In addition, the downstream piping 11a and the upstream piping 1
1b is provided with pressure gauges 18a and 18b, respectively. Then, the partition valve 18 and the pressure gauges 18a, 18b
and the discharge valve 16 are electrically connected to the control device fIi19. The control device 19 is configured to appropriately control the opening and closing of the partition valve 18 and the discharge valve 16 i1+j based on the pressure values detected by the pressure gauges 18a and 18b. In this configuration, the gate valve 18 is opened;
In the normal state when the discharge valve 16 is closed, contaminants transferred together with the flowing water C in the downstream arrangement i'11b are collected and removed by the filter section 15 of the bypass pipe 14.
Remains in the filter section 15. On the other hand, the flowing water C passes through the filter section 15 and flows into the collector body 12, and then flows into the downstream piping 11a. And filter section 1
As the amount of contaminants that remain or adhere to the pipe 5 increases, the pressure inside the downstream pipe 11a decreases.

Then, when the pressure value detected by the downstream pressure gauge 18a or the value of the difference between the pressures detected by both positive force gauges 18a and 18b reaches a preset predetermined value, a+
The discharge valve 16 is opened by the f control device 19 and enters the discharge state. In this discharge state, the contaminants remaining in the filter section 15 flow into the discharge pipe 17 together with the flowing water C and are discharged. At this time, the flowing water C passes through the filter section 15 and also flows to the downstream side, so that contaminants can be discharged without water interruption. In addition, by closing the partition valve 18 as necessary, the flowing water C passing through the filter section 15 can be eliminated and the flowing water C flowing inside the filter section 15.
The flow rate and force of the filter section 15 are increased to remove contaminants adhering to the filter section 15. Then, after a certain period of time, the control device 19 returns to the normal state. Therefore, according to this embodiment, the collected and removed contaminants can be discharged in a timely manner without water interruption, and by arranging the collector main body t2 and the filter section 15 in the vertical direction, the device can be The space required for installation can be reduced.

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 water interruption when the amount of contaminants that remain in the bypass pipe reaches the permissible limit. It can be discharged outside the pipe. Moreover, by the above, the removal efficiency of the filter section can always be kept constant.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2 is a plan view taken along the a-a arrow in FIG. 1, FIG. 8 is a side view taken along the bb--b arrow in FIG. This figure is an overall configuration diagram showing another embodiment of the present invention, and FIG. 5 is a view taken along the line dd in FIG. 4. la, lb, lla, 1lb-piping, 2.12... collector body, 8a, 8b, 14-bypass pipe, 4a, 4b
, 15-filter section, 5a, 5b, 16=-discharge valve, 6a, 6b, 17-discharge pipe, 7a. 7b, 7c, 18a, 18b = Pressure gauge, 8, 1
9-...Control device, 13...Gate valve.

Claims (1)

[Claims] 1. In the middle of a water distribution pipe, a sealed tank and a bypass pipe are provided passing through the tank, and one end of the bypass pipe is connected to the upstream water distribution pipe. At the same time, the tank body is provided in communication with a water distribution pipe on the downstream side, and the pipe wall of the portion of the bypass pipe located inside the tank body is formed into a filter portion that has water permeability and can remove contaminants. At the same time, a discharge valve is provided at the other end of the bypass pipe, and a pressure gauge capable of detecting the pressure in the water distribution pipe on the upstream and downstream sides of the filter section is provided, and the filter section is detected by the pressure gauge. Removal of contaminants in a water distribution pipe, characterized by providing a control device that opens and closes the discharge valve as appropriate based on the pressure value on the downstream side or the value of the pressure difference between the upstream side and the downstream side of the filter section. Device. 2. A pair of bypass pipes are provided through the tank body, one bypass pipe is connected to the water distribution pipe on the upstream side, and the other bypass pipe is connected to the water distribution pipe on the downstream side. A device for removing contaminants in a water distribution pipe according to claim 1. 3. The arrangement according to claim 1 or 2, characterized in that the filter portion of the bypass pipe provided to penetrate the tank body is formed in a direction perpendicular to the horizontal water distribution pipe. A device for removing contaminants in water pipes.