JP3144523B2 - Contaminant removal device for two-way flowing water pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing impurities contained in running water flowing through a water pipe.

[0002]

2. Description of the Related Art Generally, in a flowing water pipe, for example, a ductile cast iron pipe or the like, a mortar lining is provided on an inner surface of the pipe to prevent rust, so that the quality of water supplied to each household is guaranteed.

[0003]

However, in the above-mentioned prior art, in order to take out a branch pipe from the main pipe of the water pipe, if necessary, from the main pipe, drilling work on this water pipe is required. The cutting work of the running water pipe is performed. In these construction processes, metal powder is generated, and furthermore, a metal portion is exposed during drilling and cutting of the flowing water pipe, and rust is generated in this part, so there was a problem that these metal powder and rust powder flow in the flowing water pipe. .

The drilling and piping work is almost always performed underground, and sand and the like may enter the flowing water pipe, making it difficult to ensure water quality.

[0005] Therefore, an apparatus having a filter member for removing such contaminants in running water has been developed. However, if this device is used for many years, the filter member will be clogged and the flow of the water in the water pipe will be hindered. Therefore, it is necessary to periodically replace the filter member. This replacement operation has to be carried out by once stopping the flowing water in the flowing water pipe and disassembling the device, which is very troublesome.

Further, water is constantly supplied in one direction in the main pipe of the water pipe. However, in a branch pipe branched in a mesh form, backflow occurs depending on the use and supply state of water,
In a flowing water pipe such as a branch pipe, a flow may be generated in both directions. Therefore, if the filter member is simply installed in the water pipe, impurities accumulated and accumulated by the filter member up to that time will flow away from the filter member at the same time as the backflow, and thus the function of the filter may not be performed.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and an object of the present invention is to provide an apparatus for removing impurities in a two-way flowing water pipe capable of removing impurities in flowing water in both directions. .

[0008]

In the apparatus for removing contaminants in a two-way flowing water pipe according to the present invention, a surrounding case having a passage area substantially larger than that of the flowing water pipe is attached to a part of the flowing water pipe in a water-sealed state. A filter member for partitioning the surrounding case into an upstream chamber and a downstream chamber is provided in the surrounding case.
In the lower part of the surrounding case, upstream and downstream of the filter member
A discharge chamber is formed through a contaminant pipe outflow prevention means formed of an inclined plate disposed downstream of the discharge chamber, and the discharge chamber is connected to the outside via an on-off valve.

[0009]

[Function] When water containing impurities flows into the surrounding case,
Since the water passage area increases, the flow velocity decreases, and most of the impurities settle in the discharge chamber before the impurities reach one surface of the filter member. The contaminants that have settled once, even if the flow of water is normal or reverse,
Discharge to slide down the inclined plate, which is a means to prevent outflow into the pipe
The slant plate prevents the water from flowing back into the water pipe and is constantly deposited in the discharge chamber . afterwards,
Contamination by opening the on-off valve after a predetermined period has elapsed
Things will be released to the atmosphere.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. Reference numeral 1 denotes a water pipe as a running water pipe. Installed in sealed state. The surrounding case is substantially cylindrical in the vertical direction, and a predetermined space S is provided between the bottom surface of the surrounding case 2 and the water pipe 1. An opening / closing case 3 is mounted on the upper part of the surrounding case 2, and a work case 4 is mounted on the upper part of the opening / closing case 3, respectively. In addition,
A mechanism having a predetermined function is appropriately mounted on the upper part of the work case 4.

The opening / closing case 3 is provided with a gate valve 5 for separating the surrounding case 2 and the working case 4. A rod 6 is attached to the gate valve 5, and the gate valve 5 can be used to communicate and shut off the surrounding case 2 and the working case 4 by operating the rod 6. Reference numeral 7 denotes a housing that is housed when the gate valve 5 is retracted from the opening / closing case 3, and is integrally attached to a peripheral surface of the opening / closing case 3.

Reference numeral 8 denotes a drill as a piercing means for ascending and descending the surrounding case 2, the opening and closing case 3 and the working case 4 to pierce the water pipe 1, and above which a rotating shaft 9 rotated by a motor or the like is provided. Have. A hole 10 is provided on the bottom surface of the surrounding case 2, and a branch pipe 12 provided with a partition plug 11 which is an open / close valve that can be opened and closed from the hole 10 extends downward.

As described above, in order to perform the work of attaching the filter member 13 in the water pipe 1 after the cases and the respective members are sequentially mounted and fixed to the water pipe 1 in a water-sealed state, FIGS. As shown, the gate valve 5 is opened by operating the rod 6, and the surrounding case 2 and the working case 4 are communicated. Then, the drill 8 is lowered while the rotation shaft 9 is rotated by a driving device (not shown), and the water pipe 1 is pierced or cut to provide a through hole.

Next, when the drill 8 completely penetrates the water pipe 1, the cut piece (not shown) of the through hole of the water pipe 1 is stored in the drill 8 and the drill 8 is raised. .
Thereafter, the rod 6 is operated to close the gate valve 5, and the communication between the surrounding case 2 and the work case 4 is cut off (FIG. 1).

Then, as shown in FIG.
From the open / close case 3 and the drill 8 into the work case 4
And the upper end of the holding end 14 of the filter member 13 and the tip of the rotating shaft 9 (or another elevating shaft) are connected instead. The rotating case 9 is now operated as press-fitting means by communicating with the working case 4 and the filter member 13 is operated.
Is lowered and pressed into a predetermined position on the inner surface of the surrounding case 2, and then the rotating shaft 9 is removed from the holding end 14. Finally, FIG.
As shown in (2), the opening / closing case 3 and the working case 4 are removed, and the lid member 16 is attached. Thereby, the attachment of the filter member 13 into the water pipe 1 is completed.

FIG. 3 shows an apparatus for removing impurities according to an embodiment of the present invention. The filter element 13 is shown in particular in FIG.
An inner lid 19 having a holding end 14 is fixed to the upper surface of the panel 8.

At the lower part of the partition plate 18, substantially half-moon-shaped bottom plates 21 and 21 having discharge holes 20 are arranged so as to be inclined toward the discharge holes 20, and above the discharge holes 20. Inclined plates 22 and 22 are attached so as to cover. Therefore, the bottom plates 21 and 21 and the inclined plate 2
The discharge chambers 23 having a predetermined space are respectively formed by the enclosures 2 and 22 and the surrounding case 2. Also,
The bottom plates 21, 21 and the inclined plates 22, 22 are separated from each other by a predetermined distance, and a communication portion 24 is formed to allow the discharge chamber 23 to communicate with the surrounding case 2.

The filter member 13 constructed as described above
Is fitted into the surrounding case 2 so that the inside of the surrounding case 2 is divided into an upper chamber and a downstream chamber, and at this time, the communication hole 20 and the hole 10 communicate with each other.

In this contaminant removing apparatus, since the surrounding case 2 has a larger passage area than the water pipe 1, the water pipe is substantially enlarged, and the flow velocity is reduced rapidly at the enlarged portion. Has become. Therefore, most of the contaminants T contained in the flowing water flowing through the water pipe 1 fall in the surrounding case 2 by its own weight, further slide down on the inclined plates 22, 22, and pass through the communicating portions 24, 24. , Sink into the discharge chamber 23.

In the case where the flow of water is high, some contaminants that do not fall and reach the filter member 13 are attached to the filter mesh 17 of the filter member 13. Because the momentum of the water flow is weakened, it does not adhere to the filter mesh 17,
It falls along the filter mesh 17 and sinks in the discharge chamber 23.

Here, when the water flow is in the opposite direction, a vortex is generated in the surrounding case 2, and the contaminants T deposited in the discharge chambers 23, 23 are raised into the surrounding case 2. The force which tries to be generated. However, an inclined plate 2 as a means for preventing outflow into the foreign matter pipe is provided above the foreign matter once settled.
2, the impurities T do not flow again into the water pipe 1.

That is, the impurities T flowing from both directions
Is mostly settled before reaching the filter member 13, and some impurities T also settle down along the filter mesh 17 and are captured.
There is an advantage that clogging does not occur for a long time.

As described above, the contaminants T accumulated in a predetermined amount with the passage of time are discharged from the discharge chambers 23, 23 to the discharge holes 20,
Further, it passes through the hole 10 and is further discharged from the branch pipe 12 to the outside. The discharge operation of the contaminants can be performed periodically after a predetermined period has elapsed irrespective of the change in the water flow.

FIGS. 6 and 7 show an apparatus for removing contaminants according to a second embodiment of the present invention. The difference between this embodiment and the above-described embodiment is that the discharge chamber 23
Are inclined plates 22, 22 attached to the surrounding case 2,
This is a point that is constituted by the bottom wall 25 of the surrounding case 2.
The inclined plate 22 and the bottom wall 25 of the surrounding case are inclined toward the hole 10 that communicates with the outside.

The filter member 13 has a partition plate 18 having a filter mesh 17 as a contaminant capturing surface.
And the inner lid 19 only, and the surrounding case 2
And the partition plate 18,
Between the inclined plates 22, communication portions 24, 24 between the discharge chamber 23 and the inside of the surrounding case 2 are formed.

In the thus configured foreign matter removing device, the foreign matter T that has flowed into the surrounding case 2 sinks down and slides down the inclined plates 22, 22 via the communicating portions 24, 24 so that the discharge chamber 23 is slid down. After a predetermined period of time, the gas is discharged into the atmosphere when the on-off valve 11 is opened via the branch pipe 12. And also in this case, since the discharge chamber 23 which is not affected by the eddy current is formed by the inclined plates 22, 22, the foreign substances fly up into the surrounding case 2,
It does not flow again into the water pipe 1.

Although the embodiment has been described with reference to the drawings, the specific configuration is not limited to the embodiment, and any changes or additions without departing from the gist of the present invention are included in the present invention. It is.

[0028]

According to the above configuration, when water containing impurities enters the surrounding case, the flow area of the water increases because the water passage area is widened, and almost all of the impurities are removed before the impurities reach one side of the filter member. Sinks into the discharge chamber. The contaminants that have settled once, even if the flow of water changes to a normal flow or a reverse flow , is a slope that is a means for preventing outflow into the contaminant pipes.
The plate slides down into the discharge chamber and slides down.
As a result , re-inflow into the water pipe is prevented, and the water is constantly accumulated in the discharge chamber . After that, when a predetermined period has elapsed, the on-off valve is opened, whereby the foreign substances are discharged into the atmosphere.

[0029]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a construction process of an apparatus for removing impurities according to the present invention.

FIG. 2 is a cross-sectional view showing a construction process of the impurity removing device of the present invention.

FIG. 3 is a cross-sectional view of a main part after the assembly of FIG. 2 is completed.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view of a filter member of the impurity removing device of the present invention.

FIG. 6 is a sectional view of a main part of an apparatus for removing impurities according to a second embodiment of the present invention.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Water pipe (flow water pipe) 2 Surrounding case 3 Opening / closing case 4 Working case 5 Gate valve 6 Rod 7 Housing 8 Drill (piercing means) 9 Rotating shaft 10 Hole 11 Partition plug 12 Branch pipe 13 Filter member 14 Holding end 16 Lid member Reference Signs List 17 filter mesh 18 partition plate 19 inner lid 20 discharge hole 21 bottom plate 22 inclined plate (prevention means for outflow into foreign matter pipe ) 23 discharge chamber 24 communication part 25 bottom wall

Claims (4)

(57) [Claims] A surrounding case having a substantially larger passage area than a flowing water pipe is attached to a part of the flowing water pipe in a water-sealed state,
Within this enclosed case, with the filter member is disposed for partitioning the surrounding case into an upstream chamber and a downstream chamber, said the lower interior of the enclosing casing upstream of the filter member and
A discharge chamber is formed through an impurity pipe outflow prevention means formed of an inclined plate disposed downstream, and the discharge chamber is electrically connected to the outside via an on-off valve. A device for removing impurities from running water pipes. The bottom wall of wherein the discharge chamber, impurity removing device of the bidirectional water flow tube according to claim 1 which is inclined toward the discharge hole formed in the bottom wall of the discharge chamber. 3. A discharge chamber, and an inclined plate attached to the lower filter member, impurity removing device of the bidirectional water flow tube according to claim 1 or 2 is formed by a bottom plate having a discharge hole. The bottom wall of wherein the discharge chamber, impurity removing device of the bidirectional water flow tube according to claim 1 or 2 which is a bottom wall of the enclosure case.