JPH07124422A - Device for removing inpurities in bi-directional flowing water pipe - Google Patents

Abstract

PURPOSE:To provide a device for removing impurities in a bi-directional flowing water pipe in which impurities in flowing water from two directions are removed. CONSTITUTION:By flowing water flowing from one direction, a catching surface located on the upstream side of two filter numbers 17, 17' stands up to catch impurities in flowing water, and also another catching surface covers backwash space 19, 19'. Then when the direction of flowing water is reversed, the catching surface covering the backwash space 19, 19' stands up to catch impurities. This operation is repeated with the change in the direction of flowing water. The caught impurities fall into the backwash space 19, 19' by flowing water and further a stop valve 11 is opened, allowing item to be washed and discharged by backwash action.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contaminant removing device for removing contaminants contained in flowing water flowing through a flowing pipe.

[0002]

2. Description of the Related Art Generally, in running water pipes, for example, ductile cast iron pipes, mortar lining is applied to the inner surface of the pipes to prevent rust, and the quality of water supplied to each household is guaranteed.

[0003]

However, in the above-mentioned conventional technique, the branch pipe is taken out from the upstream side of the flowing water pipe, that is, from the main pipe as needed, and therefore, the flowing water pipe is bored, and Cutting work of running water pipe is performed. There was a problem that metal powder was generated in these construction processes, and metal parts were exposed by the drilling and cutting work of the running water pipe, and rust was generated in this part, so these metal powder and rust powder flowed in the running water pipe. .

Most of the drilling and piping work is performed underground, and sand or the like may enter the running water pipe, making it difficult to guarantee water quality.

Therefore, an apparatus and the like provided with a filter member for removing such foreign matters in running water have been developed. However, if this device is used for many years, the filter member will be clogged and the flow of the running water in the running water pipe will be hindered. Therefore, it is necessary to regularly replace the filter member. This replacement work must be performed by once stopping the running water in the running water pipe and disassembling the device, which is very troublesome.

Further, although water is constantly supplied unidirectionally in the main pipe of the water pipe, a backflow occurs in the branch pipe branched in a mesh shape depending on the use condition and supply condition of water.
There is a possibility that flow will occur in both directions within a running water pipe such as a branch pipe. Therefore, if only the filter member is installed in the running water pipe, the contaminants that have been captured and accumulated by the filter member will flow away from the filter member at the same time as the reverse flow, and the function of the filter will not be fulfilled.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a foreign matter removing device for a two-way running water pipe capable of removing foreign matters in running water from both directions. .

[0008]

In the contaminant removing device for a two-way water pipe of the present invention, a connecting portion of two filter members joined in a bifurcated shape is pivotally supported at a predetermined portion of the water pipe, and When one of the filter members is in the standing state, the contaminant trapping surface of the other filter member forms a backwash space so as to cover the backwash space, and this backwash space is opened and closed via an on-off valve. It is characterized by being electrically connected to the discharge part.

[0009]

With the flowing water flowing from one direction, the trapping surfaces located on the upstream side of the two filter members stand up to trap the impurities in the flowing water and the other trapping surface covers the backwash space. When the direction of water flow is reversed, the trapping surface that covers the backwash space rises, and the operation of trapping impurities is repeated with the change of the direction of water flow. The captured foreign substances are washed and discharged by the backwashing action by dropping into the backwashing space by running water and further opening the on-off valve. Therefore, this filter member can catch contaminants regardless of whether bidirectional running water is generated, and maintenance of the filter member by backwashing can be performed without replacing the filter member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. Reference numeral 1 is a water pipe as a running water pipe. It is installed in a sealed state. The surrounding case is substantially cylindrical in the vertical direction, and a predetermined space is provided between the bottom surface of the surrounding case 2 and the water pipe 1. And this enclosure case 2
An open / close case 3 is attached to the upper part of the, and a work case 4 is attached to the upper part of the open / close case 3. A mechanism having a predetermined function is attached to the upper part of the work case 4.

The opening / closing case 3 is provided with a sluice valve 5 for partitioning the enclosure case 2 and the work case 4. A rod 6 is attached to the sluice valve 5, and by operating the rod 6, the sluice valve 5 can be used for connecting and disconnecting the surrounding case 2 and the work case 4. Reference numeral 7 denotes a housing that is housed when the sluice valve 5 is withdrawn from the open / close case 3, and is integrally attached to the peripheral surface of the open / close case 3.

Reference numeral 8 is a drill as a piercing means for moving up and down in the enclosure case 2, the opening / closing case 3 and the work case 4 to pierce the water pipe 1, and a rotary shaft 9 which is rotated by a motor or the like is provided above the drill. Have In addition, two holes 10 and 10 are provided on the bottom surface of the surrounding case 2, and a drain pipe 12 having a partition plug 11 that is an opening / closing valve that can be opened and closed extends downward from the holes 10. ing. Reference numeral 15 is a guide piece integrally formed below the surrounding case 2.

As described above, after the cases and members are sequentially installed and fixed to the water pipe 1 in a water-sealed state, the foreign matter removing body 13 to be described later is attached to the water pipe 1 as shown in FIG. As shown in FIG. 2, the rod 6 is operated to open the sluice valve 5 so that the surrounding case 2 and the work case 4 communicate with each other. Then, while appropriately rotating the rotating shaft 9 by a driving device (not shown), the drill 8 is lowered to pierce or cut the water pipe 1 to provide a through hole.

Next, when the drill 8 completely penetrates the water pipe 1, a cut-out piece (not shown) of the through hole of the water pipe 1 is housed in the drill 8 and the drill 8 is raised. After that, the rod 6 is operated to close the sluice 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.
Is separated from the open / close case 3, and the drill 8 is attached to the work case 4
And the holding end 1 of the contaminant removing body 13 instead.
4 The upper end and the tip of the rotary shaft 9 (or another lifting shaft) are connected, and the sluice valve 5 is opened by operating the rod 6 again,
The surrounding case 2 and the work case 4 are communicated with each other, the rotary shaft 9 is operated as a press-fitting means this time to lower the contaminant removing body 13, and the guide pipe 15 is used to move the running water pipe 1 inside the surrounding case 2. It is press-fitted so as to communicate with each other, and then the rotary shaft 9 is attached to the holding end 1.
Remove from 4. Finally, as shown in FIG. 3, the open / close case 3 and the work case 4 are removed, and the lid member 16 is attached.
This completes the attachment of the contaminant removing device to the water pipe 1.

As shown in FIGS. 3 and 4, the foreign matter removing body 13 has a hole formed in the bottom wall of the surrounding case 2 and two filter members 17 and 17 'which are integrally joined in a bifurcated shape. It is composed of backwash spaces 19, 19 'communicating with 10, 10, and a case 21 having communication holes 20, 20' for communicating with the running water pipe 1.

In the filter members 17 and 17 ', the shaft 18 formed on the side surface of the connecting portion has the side plate 2 of the case 21.
The case 21 is pivotally mounted and rotatable, and the back surface of the case 21 is provided with backwash spaces 19 and 19 'upstream and downstream with the shaft 18 of the filter member 17 and 17' interposed therebetween. The backwash spaces 19 and 19 'have openings of substantially the same size as the filters of the filter members 17 and 17'. In addition, a sealing material (not shown) is attached near the outer periphery of the communication holes 20, 20 'of the case 21,
This enhances the sealing effect of the connecting portion with the running water pipe 1.

In the foreign matter removing device in the running water pipe 1 thus constructed, the filtering member 17 stands up by the force of the running water received by the filter against the running water in the direction of arrow P in FIG. Complement the foreign substances in. At this time, the filter member 17 'covers the backwash space 19' while supporting the filter member 17 in the upright state. When the running water changes in the opposite direction, the filter member 17 is pressed by the running water and falls down, and this time, the filter member 17 'stands up and catches foreign matters, and the filter member 17 covers the backwash space 19. .

After the series of flow direction changes, the filter members 17, 17 'will always have impurities trapped on one surface thereof. For example, in the state where the flowing water direction is as shown in FIG. 3, the supplemented foreign substances are present on one surface of the filter member 17 ', that is, the lower surface side in this figure. The flowing water in the direction of the arrow P once passes through the filter member 17 and then flows into the backwash space 19 ′ when flowing over the upper surface side of the filter member 17 ′, so that contaminants attached to the lower surface of the filter member 17 ′ are moved downward. Drop it on.

The foreign matter that has fallen down sinks into the hole 10 from the backwash space 19 'and gradually accumulates at the lowest point of the drain pipe 12.
In addition, a tank may be provided in the middle of the drain pipe 12 to temporarily store the foreign matters. Therefore, even if the flowing water changes in the opposite direction and the filter member 17 'is erected, the once settled impurities will not flow out.

In this way, each time the direction of flowing water changes, the other filter member is automatically backwashed.
Then, after a lapse of a predetermined time, the flowing water direction is appropriately checked with a device, and the partition plug 11 of the drain pipe 12 is connected to the backwash space on the downstream side
Is opened, the flowing water flows out from above through the filter member covering the backwash space. Therefore, all the impurities that have settled together with the impurities attached to the filter member are discharged to the outside.

Next, the foreign matter removing device of the second embodiment of the present invention will be described. As shown in FIG.
The enclosure case 2 is attached in a watertight state, the opening / closing case 3 is attached to the upper portion of the enclosure case 2, and the work case 4 is attached to the upper portion of the opening / closing case 3. A mechanism having a predetermined function is attached to the upper part of the work case 4.

As in the first embodiment described above, these are used to press the contaminant removing body 13 into the surrounding case 2, and the partitioning member 24 as shown in FIG. 6 holds the case 21. Then, the opening / closing case 3 and the work case 4 are finally removed, and the lid member 33 is attached to complete the attachment of the foreign matter removing device to the running water pipe 1. The difference here is that the case 21 of the contaminant removing body 13 is
And the shape of the filter members 17, 17 ′ and the presence of the partition member 24.

In this foreign matter removing body 13, in the case 21 having the communication holes 20 and 20 'with the running water pipe 1,
Two filter members 17 integrally joined in a bifurcated shape,
17 'is a shaft 18 formed on the side surface of the coupling center,
It is pivotally attached to the side plates 22, 22 of the case 21. Further, the flow path in the case 21 is formed in a substantially V shape so as to be bent, and the filter members 17 and 17 'are also formed so that the opening angle thereof is maintained at an acute angle.

The filter member 17, 17 'is provided with a projecting piece 2 provided near the communication hole 20, 20' of the case 21.
When supported by 3, 23 ', the backwash space 1 between the filter member 17, 17' and the bottom wall of the case 21.
9, 19 'are formed. This backwash space 19, 19 '
Through the holes 36 formed in the bottom wall of the case 21 and the holes 10 formed in the surrounding case 2 are electrically connected to the discharge portion.

As shown in FIG. 8, the partition member 24 is composed of an inner lid 25 having a holding end 32 at the upper portion and an inverted U-shaped partition wall 26, and a seal member 27 is provided on the outer periphery of the partition wall 26.
And a groove 29 that engages with a guide piece 28 formed in the case 2 shown in FIG. 7 is formed. Further, the recess 31 is formed so as to surround the holding end 30 provided on the upper portion of the case 2 when the partition member is press-fitted.

By fitting the partition member 24 into the surrounding case 2, the water flowing out into the surrounding case 2 through the holes 36 of the case 21 is partitioned. This cleaning action is the same as that of the first embodiment, and the flow causes the foreign matters to settle through the backwash space 19, the hole 36, and the hole portion 10, and gradually accumulates at the lowest point of the drain pipe 12. In this way, the filter member is automatically backwashed, and the partition plug 11
By opening the above, it is possible to discharge the settled contaminants together with the contaminants attached to the filter member to the outside.

In the contaminant removing device of this embodiment,
Since the flow path of the case 21 is formed in a substantially V shape so as to be bent, the two filter members 17, 1
7'is also connected at an acute angle, and the filter members 17, 1
When the turning distance of 7'becomes shorter and the backflow of running water, the trapping surface with accumulated impurities will face the backwash space faster,
It is possible to more effectively prevent the outflow of impurities.

The filter member for covering the backwash space is
Since it receives running water at an intrusion angle that is almost a right angle, the contaminants adhering to the filter member can be effectively removed into the backwash space.

FIG. 9 shows the details of the foreign matter removing device of the third embodiment of the present invention. Constituent members of the foreign substance removing body 13 in this apparatus, the attached construction method, and the like are the same as those described in FIGS. The difference is that a switching plate 34, which will be described later, is attached to the connecting portion of the filter members 17 and 17 '.

Backwash space 1 in this contaminant removing body 13
9, 19 ', the switching plate 34 is the filter member 17,
17 'is communicated by a switching unit 35 which is a rotation range associated with the rotation, and the switching unit 35 is further connected to the surrounding case 2
It communicates with a drain pipe 39 having a water stop plug 38 through a hole 37 formed in the bottom wall.

The filter member 1 having this switching plate 34
Similarly to the first and second embodiments, the reference numerals 7 and 17 'stand up alternately along with the change of the flowing water, and supplement the contaminants to the bidirectional flowing water. The switching plate 34 includes filter members 17, 1
Any backwash space 1 covered by any of 7 '
9, 19 ', that is, only the backwash space which is always on the downstream side with respect to the flowing water direction can be rotated and moved together with the filter members 17, 17' so that the backwash space is electrically connected to the hole 37.

Therefore, also in the case of the embodiment of the present invention, in the foreign matter removing device as in the first and second embodiments, it is sufficient to open the water stop cock 38 for a predetermined time after a predetermined time has elapsed.

In the case of this embodiment, it is not necessary to separately provide two discharge parts each having a water shutoff plug, or to confirm the flowing direction of water when cleaning the filter member, so that maintenance work can be performed efficiently. it can.

As described above, the present invention is not limited to the embodiments, and modifications and additions within the scope of the present invention are included in the present invention.

For example, the case 21 of the third embodiment of the present invention is bent as in the second embodiment, and the filter members 17 and 1 are provided.
The opening angle of 7'may also be an acute angle.

[0037]

With the above construction, the trapping surfaces located on the upstream side of the two filter members are erected by the flowing water flowing from one direction, trapping the contaminants in the flowing water and the other trapping surface. Covers the backwash space. When the direction of water flow is reversed, the trapping surface that covers the backwash space rises, and the operation of trapping impurities is repeated with the change of the direction of water flow. The captured foreign substances are washed and discharged by the backwashing action by dropping into the backwashing space by running water and further opening the on-off valve. Therefore, this filter member can catch contaminants regardless of whether bidirectional running water is generated, and maintenance of the filter member by backwashing can be performed without replacing the filter member.

[0038]

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction process of a contaminant removing device of the present invention.

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

FIG. 3 is a cross-sectional view of the contaminant removing device of the present invention after assembly is completed.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a cross-sectional view showing a construction process of the contaminant removing device of the second embodiment of the present invention.

FIG. 6 is a cross-sectional view of the contaminant removing device of FIG. 5 after completion of assembly.

7 is a cross-sectional view taken along line BB of FIG.

FIG. 8 is a perspective view showing a partition member in the foreign matter removing apparatus in FIG.

FIG. 9 is a cross-sectional view of the foreign matter removing device of the third embodiment of the present invention after assembly is completed.

[Explanation of symbols]

1 Water pipe 2 Enclosed case 3 Open / close case 4 Working case 5 Gate valve 6 Rod 7 Housing 8 Drill 9 Rotating shaft 10 Hole 11 Partition plug (open / close valve) 12
Drain pipe 13 Foreign matter remover 14
Holding end 15 Guide piece 16
Lid member 17, 17 'Filter member 18
Shaft 19, 19 'Backwash space 20, 20'
Communication hole 21 Case 22
Side plate 23 Projecting piece 24
Partition member 25 Inner lid 26
Partition wall 27 Seal material 28
Guide piece 29 Groove part 30
Holding end 31 Recess 32
Holding end 33 Lid member 34
Switching plate 35 Switching unit 36
Hole 37 Hole 38
Stopcock (open / close valve) 39 Drain pipe

Claims (5)

[Claims] 1. A connecting portion of two filter members joined in a bifurcated shape is pivotally supported on a predetermined portion of a water flow pipe, and at least one of the filter members is in an upright state while the other filter is being erected. The foreign matter trapping surface of the member forms a backwash space so as to cover the backwash space, and the backwash space is electrically connected to the discharge portion through an opening / closing valve. Removal device. 2. Two filter members and two backwash spaces are housed in a box having a communication hole that communicates with a water flow pipe, and each box has two independent backwash spaces and a discharge section. The two-way water pipe contaminant removing device according to claim 1, wherein the box body is housed in a surrounding case attached in a water-sealed state. 3. The contaminant removing device for a two-way water pipe according to claim 1 or 2, wherein the two filter members are connected so that the opening angle becomes an acute angle. 4. The partition member for partitioning the two discharge portions formed in the box body is fitted in the enclosure case.
Alternatively, the contaminant removing device for the bidirectional water flow pipe according to item 3. 5. The contaminant of the bidirectional water pipe according to claim 1, wherein a switching plate for partitioning a space including the backwash switching portion is coupled to the filter member coupling portion so as to be rotatable together with the filter member. Removal device.