JP6383127B1 - Foreign matter removal device for water pipe - Google Patents

Abstract

An object of the present invention is to suppress clogging by foreign matters as much as possible when removing foreign matters mixed in a water pipe. An apparatus for removing foreign matter from a water pipe that is branched and connected to a water pipe and that captures and removes foreign matter mixed in the water by bypassing the water flowing in the water pipe and discharging it to the outside. 1 and a cylindrical main body portion in which the water supply pipe is connected to allow the water to flow in, and the introduction portion is attached to one end and the foreign matter removal unit 8 is attached to the inside. B and a discharge part C connected to the other end of the main body part and through which the fluid that has passed through the foreign substance removal unit is discharged to the outside, and a cavity G is formed upstream of the foreign substance removal unit in the introduction part. A spiral guide fin 9 is formed and formed in this cavity. The spiral guide fin 9 uses the water flowing into the introduction portion as a swirling flow. [Selection] Figure 2

Description

  The present invention relates to a foreign matter removing apparatus for a water pipe that removes foreign matters mixed in water flowing in the water pipe, and more particularly to a foreign matter removing apparatus for a water pipe suitable for use in a water supply pipe.

  Conventionally, in order to remove foreign matter mixed in the water pipe, a filtration device is attached between the pipe end of the water pipe and a faucet attached to the pipe end to capture and remove the foreign substance. (See Patent Document 1).

Japanese Patent Publication No. 6-42955

  By the way, in the above-described conventional technique, foreign matter is removed at the pipe end of the water supply pipe. However, this pipe end usually has a problem that the pipe diameter is thin and easily clogged.

  In addition, since the filtration device is provided at the end of the pipe, the restoration work when clogging occurs is an indoor work, and therefore there are many work points, and the restoration work cannot be performed quickly.

  In particular, in the case of a water pipe, when this water pipe replacement work or the like is performed, foreign matter having a large particle size may be mixed in, so the frequency of occurrence of the above-described problems increases.

  The present invention has been made in view of such conventional problems, and solves the problem of providing a foreign matter removing device for a water pipe that can suppress clogging caused by foreign matter as much as possible when removing the mixed foreign matter. It should be a challenge.

  In order to solve the above-described problem, the foreign matter removing apparatus for a water pipe of the present invention is branched and connected to the water pipe, and the water flowing in the water pipe is detoured and discharged to the outside, thereby being mixed into the water. An apparatus for removing foreign matter from a water pipe that captures and removes foreign matter, wherein the water pipe is connected to allow the water to flow in, the introduction section is attached to one end, and the inside A cylindrical main body having a foreign substance removal unit mounted thereon; and a discharge part connected to the other end of the main body part and through which the fluid that has passed through the foreign substance removal unit is discharged to the outside. A cavity is formed on the upstream side of the foreign matter removing unit, and a spiral guide fin is installed in the cavity. The spiral guide fin uses the water flowing into the introduction portion as a swirling flow.

  By setting it as such a structure, the water branched from the water pipe and detoured is first guide | induced to the cavity part of an introducing | transducing part.

  The water guided to the cavity is swirled by guide fins installed in the cavity.

  As described above, when the water is swirled, the mixed foreign matter similarly swirls in the cavity and flows into the foreign matter removing unit together with the water.

  As a result, an angle is formed when the foreign matter flows into the foreign matter removal unit, the apparent area of the foreign matter removal unit in the flow direction increases, the foreign matter removal unit capture efficiency increases, and foreign matter clogging occurs. It is suppressed.

  The water from which foreign matter has been removed by the foreign matter removing unit is discharged to the outside through the discharge portion.

  An upstream filter plate in which a large number of holes are formed on the upstream side of the introduction portion with respect to the cavity may be mounted so as to cross the flow path.

  Here, by appropriately setting the hole diameter of the upstream filter plate, it is possible to suppress foreign matter having a large particle size from entering the cavity and the foreign matter removal unit, and to better suppress clogging of the foreign matter removal unit. Can do.

  A downstream filter plate in which holes smaller than a large number of holes formed in the upstream filter plate are formed in the discharge portion so as to cross the flow path.

  By adopting such a configuration, foreign substances can be filtered in multiple stages, and the efficiency of removing foreign substances can be increased.

  A cylindrical connecting pipe connected to one end of the main body part, the outer flange of the connecting pipe attached to the opposite side of the connecting part to the main body part, and the outer flange And a cap provided with a coupler connected to the water supply pipe at the center, the outer shape being substantially the same as the outer shape of the outer flange, It is preferable that the outer flange that is brought into contact with the cap and the cap ring that is attached to the outer periphery of the cap to press the cap against the outer flange are preferably configured.

  With such a configuration, the outer periphery of the outer flange and the cap is constrained by the restraining ring, so that a coupler is fixed to one end of the main body, and the water pipe is connected via the coupler. Can be performed.

  Further, since the outer flange and the cap can be detachable by the restraining ring, the upstream filter plate is sandwiched between the outer flange and the cap. be able to.

  Here, by removing the cap, the upstream filter plate, the inner wall of the cavity, and the guide fins can be cleaned.

  And it is preferable to secure watertightness by interposing an O-ring between the contact surfaces of the outer flange and the cap.

  Further, the discharge portion is formed with an outer flange connected to the other end portion of the main body portion, a connection flange formed in substantially the same shape as the outer flange and brought into contact with the outer flange, and It is preferable that the outer flange and the connecting flange that are brought into contact with each other are attached to the outer periphery of the outer flange and a constraining ring that presses the connecting flange against the outer flange.

  By adopting such a configuration, the downstream filter plate can be mounted so as to be sandwiched between the outer flange and the connection flange, thereby facilitating the attachment and detachment of the downstream filter plate, This downstream filter plate can be easily cleaned.

  And it is preferable to interpose an O-ring between the contact surfaces of the outer flange and the connecting flange to ensure the water tightness of these contact surfaces.

  Furthermore, the foreign matter removing unit includes a water conduit formed in a cylindrical shape, and a filter medium that covers the outer periphery of the water conduit with the opening on the upstream side of the water conduit open, and on the side wall of the water conduit, It can be set as the structure which formed many holes which connect the inside and outside of the said water conduit.

By setting it as such a structure, the water in which the foreign material was mixed with the said conduit pipe can be guide | induced to the back of a filter medium, and the foreign material capture area by this filter medium can be expanded.
Therefore, the filter medium can be prevented from being clogged with foreign matters, and the foreign matter removing effect can be enhanced.

  According to the foreign matter removing apparatus for a water pipe of the present invention, the foreign matter capturing area in the foreign matter removing unit can be expanded as much as possible, and clogging by the foreign matter can be suppressed.

It is the schematic of the waterworks to which one Embodiment of this invention was applied. It is a longitudinal cross-sectional side view which shows one Embodiment of this invention. FIG. 3 is a front view showing a closed restraint ring according to an embodiment of the present invention. 1 is a front view showing a restraint ring in an opened state according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional side view showing an exploded state of an embodiment of the present invention. It is a front view which shows the upstream filter plate used for one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, the code | symbol 1 shows the foreign material removal apparatus (henceforth a foreign material removal apparatus) of the water pipe concerning this embodiment.

  As shown in FIG. 1, the foreign matter removing apparatus 1 is branched and connected to a water pipe 2, bypasses the water flowing in the water pipe 2, and discharges it to the outside. Is captured and removed.

  The water supply pipe 2 is a main pipe or a branch pipe, and is buried in the ground, and its pipe ends are branched into many houses.

  The water supply pipe 2 is connected by a plurality of stop cocks 3, a branch pipe 4 is connected in the vicinity of the upstream side of the stop cock 3, and an opening / closing valve 5 is provided at the tip of the branch pipe 4. It is attached.

  The on-off valve 5 is housed in a box 6 buried in the ground together with the stop cock 3, and is exposed to the ground by opening a lid 7 provided on the top of the box 6. ing.

  The foreign matter removing apparatus 1 includes an introduction part A (see FIG. 2) through which the water pipe 2 is connected and water is introduced, and the introduction part at one end part (upstream end part) as shown in FIG. A is attached and a cylindrical main body B having a foreign substance removal unit 8 installed therein, and the fluid that is connected to the other end of the main body part B and passes through the foreign substance removal unit 8 is discharged to the outside. And a discharge portion C. A cavity G is formed in the introduction portion A on the upstream side of the foreign substance removal unit 8, and the water flowing into the introduction portion A is swirled in the cavity G. A guide fin 9 is attached.

  The introduction part A includes a cylindrical connecting pipe 10 connected to an upstream end of the main body part B, and an outer side attached to the connecting part of the connecting pipe 10 to the main body part B. The outer flange 11 is brought into contact with the outer flange 11 so as to cover the inner space thereof, and the outer shape is substantially equal to the outer shape of the outer flange 11, and the water supply pipe 2 is formed at the center. A cap 13 provided with a coupler 12 to be connected to the outer flange 11, the outer flange 11 that is brought into contact with the cap 13, and a restraining ring that is attached to the outer periphery of the cap 13 and presses the cap 13 against the outer flange 11 14.

  A donut plate-like support ring 15 is integrally attached to the inner space of the outer flange 11, and a number of holes are formed on the upstream surface of the support ring 15 as described in detail in FIG. 6. A disc-shaped upstream filter plate 16 having 16a formed therein is brought into contact therewith and is mounted so as to cross the upstream of the flow path formed by the cavity G.

  An O-ring 17 is interposed between the contact surfaces of the outer flange 11 and the cap 13, and when the outer flange 11 and the cap 13 are pressed against each other by the restraining ring 14. The water tightness of the pressure contact surface is ensured.

  The main body B is formed by a circular pipe 18 having the same diameter as the connecting pipe 10, and the connecting pipe 10 is integrally attached to an upstream end edge thereof by welding.

  The discharge portion is formed to have an outer flange 19 connected to the other end portion (downstream end portion) of the circular pipe 18 constituting the main body portion B, and substantially the same shape as the outer flange 19. The connecting flange 20 that is brought into contact with the outer flange 19, the outer flange 19 that is brought into contact with the outer flange 19, and the outer periphery of the connecting flange 20 are attached, and the connecting flange 20 is crimped to the outer flange 19. The restraint ring 21 is used.

  A support ring 22 having the same shape as that of the support ring 15 is integrally attached to the inside of the connecting flange 20 by welding. A disc-shaped downstream filter plate 23 having holes formed therein is arranged so as to cross the flow path.

  A large number of holes formed in the downstream filter plate 23 are formed smaller than a large number of holes 16 a formed in the upstream filter plate 16.

  An O-ring 24 is interposed on the contact surface between the outer flange 19 and the connecting flange 20 to ensure water tightness of the contact surface.

  As shown in FIG. 3, the constraining rings 14 and 21 are constituted by a pair of ring components 14a and 14a (21a and 21a) formed in a semicircular arc shape. 21a is used by abutting to form an annular shape.

  As shown in FIG. 2, constraining grooves 14b and 21b having a V-shaped cross section are formed on the inner peripheral surfaces of the pair of ring structural bodies 14a and 21a. The flanges 11 and the cap 13, and the outer flange 19 and the connecting flange 20 are fitted together so that these flanges are brought into pressure contact with each other.

  In addition, each of the ring structural bodies 14a and 14a (21a and 21a) is rotatably connected via a pivot 25 at one of the butted portions.

  In the other butted portion, one link component 14a is integrally provided with an outwardly protruding locking piece 26, and the other link component 14a has the pair of ring components 14a. In a state where 14a (21a, 21a) are abutted in an annular shape, a support piece 27 which is opposed to the locking piece 26 substantially in parallel is provided so as to protrude outward.

  A bolt 29 having a wing nut 28 attached thereto is rotatably attached to the support piece 27, and an engagement groove (not shown) is formed in the locking piece 26 so as to open at a protruding end thereof.

  As shown in FIG. 3, the bolt 28 is adapted to be fitted into an engagement groove of the locking piece 26 that is opposed to the support piece 27 by its rotation. In the state, by tightening the wing nut 28, the gap between the locking piece 26 and the support piece is narrowed, and the inner diameter of the ring formed by the pair of ring components 14a and 14a (21a and 21a) Is to narrow.

  The foreign matter removing unit 8 includes a water conduit 30 that is formed in a cylindrical shape and has a large number of holes 30a formed in a peripheral wall thereof, and a filter medium 31 that covers the outer periphery of the water conduit 30 with the upstream opening opened. .

  The upstream end of the water conduit 30 is exposed upstream from the filter medium 31, and the outer periphery of the exposed portion extends to the inner periphery of the circular pipe 18 of the main body B over the entire periphery. A disk-shaped spacing plate 32 to be brought into contact is integrally attached by welding.

  The filter medium 31 is formed in a bottomed cylindrical shape, and has an outer diameter that forms a gap H over the entire circumference between the outer peripheral surface thereof and the inner peripheral surface of the circular tube 18.

  The filter medium 31 is integrated with the water conduit 30 by inserting the water conduit 30 from the upstream opening thereof, and constitutes the foreign matter removing unit 8.

  The foreign matter removing apparatus 1 of the present embodiment having such a configuration inserts and attaches the foreign matter removing unit 8 into the circular tube 18 from the interval holding plate 32 side as shown by an arrow A in FIG. .

  Next, the upstream filter plate 16 is held in contact with the support ring 15 of the outer flange 11 formed on the upstream side of the circular pipe 18 as shown by an arrow (b) in FIG.

  Further, as indicated by an arrow (c) in the figure, the cap 13 is brought into contact with the outer flange 11 with an O-ring 17 interposed therebetween, and the outer flange 11 and the cap 13 thus brought into contact with each other. The outer ring 11 and the cap 13 are fixed in a pressure contact state by covering the outer periphery of the cap ring 14 with the constraining ring 14 and narrowing the diameter of the constraining ring 14 with the wing nut 28.

  Thus, the introduction part A is attached to the main body part B.

  On the other hand, the discharge part C brings the downstream filter plate 23 into contact with the upstream surface of the support ring 22 fixed inside the connecting flange 20 as shown by an arrow (d) in the drawing.

  Thus, the connecting flange 20 is brought into contact with the outer flange 19 fixed to the circular pipe 18 with the O-ring 23 interposed, as indicated by an arrow (e) in FIG.

  Next, the constraining ring 21 is put on the outer periphery of the contact flange 20 and the outer flange 19 that are brought into contact with each other, and the diameter of the constraining ring 21 is narrowed by the wing nut 28, whereby the connection flange 20. And the outer flange 19 are fixed in a pressure contact state.

  Thereby, the discharge part C is mounted on the main body part B, and the foreign matter removing apparatus 1 of this embodiment is assembled.

  The foreign matter removing apparatus 1 assembled in this way is used, for example, for foreign matter removal when the water pipe indicated by reference numeral 2a in FIG. 1 is replaced.

  That is, the foreign matter removing apparatus 1 of the present embodiment is installed by connecting the on-off valve 5 attached to the water supply pipe 2 to the coupler 12.

  When installing such a foreign matter removing apparatus 1, the stop cock 3 and the on-off valve 5 are kept closed.

  When the on-off valve 5 is opened with the stop cock 3 closed, the water in the replaced water supply pipe 2a passes through the on-off valve 5 from the closest distance of the stop cock 3 and the foreign matter removing device. Detoured to 1.

  In this way, the water bypassed from the water pipe is first guided to the cavity G of the introduction part A, and then swirled as indicated by the arrows in FIG. 2 by the spiral guide fins 9 in the cavity G. While being carried, the foreign substance removing unit 8 is fed into the water conduit 30.

  As described above, when the water is swirled, the mixed foreign matter similarly swirls in the cavity G and flows into the water conduit 30 of the foreign matter removal unit 8 together with the water.

  The water flowing into the water conduit 30 passes through the filter medium 31 covering the water conduit 30 through a large number of holes 30 a formed in the peripheral wall of the water conduit 30, and the filter medium 31 and the ring 18. Into the gap H between the two and further discharged through the discharge portion C to the outside.

  By such a swirl flow, when foreign matter flows into the filter medium 31, an angle is formed with respect to the surface of the filter medium 31, and the apparent area of the foreign substance removal unit 8 in the flow direction increases.

  Therefore, foreign matter removal is performed over a wide area, and as a result, foreign matter capture efficiency is increased and foreign matter clogging is suppressed.

  On the other hand, in this embodiment, the upstream filter plate 16 is arranged in the introduction part A, and the downstream filter plate 23 is arranged in the discharge part C.

  Here, by appropriately setting the hole diameter of the upstream filter plate 16, it is possible to prevent foreign matter having a large particle size from entering the cavity G or the foreign matter removal unit 8, and to better clog the foreign matter removal unit 8. Can be suppressed.

  And by making the hole diameter of the downstream filter plate 23 installed in the said discharge part C small, the foreign material which permeate | transmitted the said filter medium 31 is attained, and it can suppress that a foreign material flows into the pipe end of the water supply pipe 2 as much as possible. .

  Therefore, even in the replacement work of the water pipe 2 in which foreign matters having a large particle size difference are likely to be mixed, these foreign matters can be efficiently captured and removed.

  On the other hand, since the foreign substance removal apparatus 1 of this embodiment can be mounted | worn with and used for the water pipe 2 embed | buried outdoors, the foreign substance can be removed in the upstream of a water supply path | route.

As a result, the foreign matter can be captured and removed before diverging in various ways, and the foreign matter can be removed in a concentrated manner at a small number of locations.
As a result, it is possible to reduce the number of foreign object removal work locations as much as possible.

  In addition, since foreign matter removal work can be performed outdoors, restrictions on the size of the device can be greatly relaxed, and a usable filter medium can be set to a large size. Can be implemented efficiently.

  Further, the outer flange 11 and the cap 13 are detachable by the restraining ring 14, and the outer flange 19 and the connecting flange 20 are detachable by the restraining ring 21, respectively. The upstream filter plate 16 and the downstream filter plate 23 can be installed.

  Here, the upstream filter plate 16, the downstream filter plate 23, the inner wall of the cavity G, and the guide fin are removed by releasing the cap 13 and the connecting flange 20 by releasing the constraint of the constraint rings 14 and 21. 9 can be cleaned.

  Furthermore, the foreign matter removing unit 8 can be easily attached and detached, and the maintenance work can be simplified.

  Note that the shapes, dimensions, and the like of the constituent members shown in the above embodiment are merely examples, and various changes can be made based on design requirements and the like.

DESCRIPTION OF SYMBOLS 1 Foreign substance removal apparatus (of water pipe) 2 Water pipe 3 Stop cock 4 Branch pipe 5 On-off valve 6 Box 7 Lid 8 Foreign substance removal unit 9 Guide fin 10 Connecting pipe 11 Outer flange 12 Coupler 13 Cap 14 Restraint ring 14b Restraint groove 15 support ring 16 upstream filter plate 16a hole 17 O-ring 18 circular pipe 19 outer flange 20 connecting flange 21 restraining ring 21b restraining groove 22 support ring 23 downstream filter plate 24 O-ring 25 pivot 26 locking piece 27 support piece 28 wing nut 29 Bolt 30 Water conduit 30a Hole 31 Filter medium 32 Spacing plate A Introducing part B Main part C Discharging part G Cavity H Gap

Claims (8)

  A foreign matter removing device for a water pipe that is branched and connected to a water pipe and captures and removes foreign matter mixed in the water by bypassing the water flowing in the water pipe and discharging it outside. An introduction part to which the water pipe is connected and the water flows in, a cylindrical body part in which the introduction part is attached at one end part and a foreign substance removal unit is attached, and the other end of the body part And a discharge part through which the fluid that has passed through the foreign substance removal unit is discharged to the outside, and a cavity is formed in the introduction part upstream of the foreign substance removal unit, and flows into the introduction part into the introduction part An apparatus for removing foreign matter from a water pipe, wherein a spiral guide fin that swirls the water is attached.   The foreign matter in the water supply pipe according to claim 1, wherein an upstream filter plate having a plurality of holes is installed on the upstream side of the introduction portion with respect to the cavity so as to cross the flow path. Removal device.   3. The downstream filter plate in which holes smaller than a plurality of holes formed in the upstream filter plate are attached to the discharge portion so as to cross the flow path. Foreign material removal device for water pipes.   A cylindrical connecting pipe connected to one end of the main body, an outer flange attached to the connecting pipe on the opposite side of the connecting part with the main body, and the outer flange; And a cap provided with a coupler connected to the water supply pipe at the center, the outer shape being substantially the same as the outer shape of the outer flange, 4. The outer flange that is brought into contact with the cap and a restraining ring that is attached to the outer periphery of the cap and presses the cap against the outer flange. The foreign substance removal apparatus of the water supply pipe in any one of.   The foreign matter removing apparatus for a water pipe according to claim 4, wherein an O-ring is interposed between contact surfaces of the outer flange and the cap.   An outer flange connected to the other end of the main body, the connecting flange formed in substantially the same shape as the outer flange, and brought into contact with the outer flange, and the contact between them 4. The restraint ring, which is mounted on the outer periphery of the outer flange and the connecting flange, and is configured to press the connecting flange against the outer flange. An apparatus for removing foreign matter from a water pipe according to claim 1.   The foreign matter removing apparatus for a water pipe according to claim 6, wherein an O-ring is interposed between contact surfaces of the outer flange and the connecting flange. The foreign matter removing unit is configured by a water conduit formed in a cylindrical shape, and a filter medium that covers the outer periphery of the water conduit with the opening on the upstream side of the water conduit open, and on the side wall of the water conduit, The foreign substance removing device for a water pipe according to any one of claims 1 to 7, wherein a large number of holes for communicating the inside and outside of the water conduit are formed.