JP2008157000A - Drain system and drain speed reducing member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To connect two horizontal branch pipes to a drain collecting pipe coupling, with the two branch pipes arranged in an opposed state, while preventing waste water from one horizontal branch pipe from flowing into the other opposed horizontal branch pipe, by using an existing drain collecting pipe coupling. <P>SOLUTION: This drain system is composed of a drain vertical pipe 2 piped by penetrating in the vertical direction through the respective floors of a multilayer building, the drain collecting pipe coupling 3 arranged with respective floors to the drain vertical pipe 2, and a plurality of horizontal branch pipes 4 and 40 connected between the drain collecting pipe coupling 3 and a sanitary facility such as a toilet T. The two horizontal branch pipes 4 and 40 are connected to the drain collecting pipe coupling 3 in an opposed state, and a drain speed reducing member 5 having right-left side walls swelling to the outside and having a water collision part 51 inside, is arranged in a horizontal part 41 of one horizontal branch pipe 4. Thus, while the waste water is separated leftward and rightward by colliding with the water collision part 51, the separated right-left waste water are merged, and water force of the waste water is attenuated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multilayer building comprising a drainage collecting pipe joint interposed for each floor with respect to a drainage stack of the multilayer building, and a plurality of side branch pipes connected to the drainage collecting pipe joint. The present invention relates to a drainage system and a drainage reduction member that is used in the drainage system to reduce drainage.

  In multi-layer buildings such as apartment houses, hotels, and hospitals, drainage stacks that run vertically through each floor are provided for drainage. The drainage stack is provided with a drainage collecting pipe joint for each floor, and a plurality of horizontal branch pipes are connected to each drainage collecting pipe joint. For example, in the case of an apartment house, the horizontal branch pipe is connected to the drain pipe of a sanitary facility such as a toilet, bath, sink, or sink that is installed in the residence, and the other end is connected to the drain collection pipe joint. It is connected so that drainage from the sanitary facility flows through the side branch pipe to the drainage collecting pipe joint.

  In such a drainage collecting pipe joint, a plurality of side branch pipes are connected at substantially the same height, but two of them are opposed to each other (a state where the mutual pipe ports face each other). It is not uncommon for them to be connected via In such a connection state, when a strong drainage such as toilet drainage flows from one side branch pipe to the drainage collecting pipe joint, the drainage jumps over the drainage collecting pipe joint because the drainage has a strong momentum. It may flow into the side branch pipe. In this case, after the toilet drainage flows into the other side branch pipe, if the filth contained in the toilet drainage does not flow down to the drainage stack via the drainage collecting pipe joint, the other side branch pipe in the worst case. There was a problem that a bad smell went up into the sanitation room.

In response to such problems, in order to prevent the inflow of drainage into the opposite side branch pipes, two pipe ports are provided in an orthogonal direction, and one of the pipe ports is provided with an elbow joint integrally. A drainage collecting pipe joint has been proposed (see, for example, Patent Document 1). In this drainage drainage pipe joint, the two lateral branch pipes connected to the drainage drainage pipe joint do not face each other, so that strong drainage such as toilet drainage flows from one lateral branch pipe into the other lateral branch pipe. There is no.
JP 2004-84394 A

  However, in a multi-layered building, the piping space for installing the drainage collecting pipe joint is limited, and the aforementioned drainage collecting pipe joint is integrally provided with an elbow joint. In addition to being unable to fit in the piping space, there is a problem that the drainage collecting pipe joint and the elbow joint need to be molded integrally, and an expensive mold with a complicated shape is required separately. There is a problem that the manufacturing cost increases.

  In addition, since one side branch pipe is connected to the drainage collecting pipe joint through the elbow joint, one side branch pipe and the other side branch pipe are connected in a state where the pipe axis is shifted, In some cases, the piping design of the side branch pipe is limited as compared with the conventional drainage collecting pipe joint in which the side branch pipe is connected in an opposed state.

  The present invention has been made in view of the actual situation, and using the existing drainage collecting pipe joint, while preventing drainage from one side branch pipe from flowing into the other side branch pipe, Disclosed is a multi-layer building drainage system capable of connecting a side branch pipe to a drainage collecting pipe joint in an opposed state, and a drainage reduction member capable of decelerating drainage.

  A drainage system according to the present invention includes a drainage stack piped vertically through each floor of a multi-layered building, a drainage collection pipe joint disposed for each floor with respect to the drainage stack, a drainage collection pipe joint, In a multi-layer building drainage system comprising a plurality of side branch pipes connected to a sanitary facility, and two of these side branch pipes are connected to a drainage collecting pipe joint in an opposed state. In the horizontal portion of the horizontal branch pipe, the left and right side walls bulge outward, and a drainage reduction member provided with a water impingement part is provided inside, so that the wastewater flowing into the drainage reduction member is supplied to the water impingement part. While colliding and being diverted to the left and right, the diverted right and left drains are merged and flow out while colliding on the back side of the water impact section.

  According to the present invention, the wastewater that has flowed into the drainage deceleration member collides with the water impingement part and is diverted to the left and right while the water force is weakened. The water is weakened by colliding with the drained water that has been diverted to the left and right. In addition, the drained water split to the left and right collides with the side wall of the drainage deceleration member to weaken the water force, and the drained water collides with each other when the shunted drainage merges on the back side of the water drainage part. The water is weakened.

  As a result, the drainage flowing out from the drainage moderation member is greatly weakened in water force, so that it is prevented from jumping over the drainage collecting pipe joint and flowing into the opposing side branch pipe.

  Here, the horizontal portion of the horizontal branch pipe is, for example, a horizontal branch pipe connected between a drain pipe of a sanitary facility and a drain collecting pipe joint, and the drain collecting pipe joint has a water gradient and is substantially horizontal. The part connected to For example, in the case of a toilet, specifically a wall drainage toilet, it is the downstream part of the horizontal branch pipe connected to the drainage pipe except the crank-shaped bend, and in the case of a floor drainage toilet Is a side branch pipe itself connected substantially horizontally to the drain pipe and the drain collecting pipe joint.

  In this invention, it is preferable that the cross-sectional shape of the drainage deceleration member by the vertical plane orthogonal to the tube axis of the horizontal portion is plane symmetric with respect to the vertical plane including the tube axis of the horizontal portion. As a result, the drainage that has been diverted to the left and right by the water impingement section has almost the same flow velocity and flow rate, so that either the left or right drainage does not have a strong water flow, and when the separated drainage merges again. The water can be damped by causing the wastewater to collide with each other at approximately equal flow rates and flow rates. That is, when one of the water forces is strong, it is possible to suppress the drainage having a weaker water force from being pushed into the drainage at the time of merging, being discharged as a swirling flow from the drainage reduction member, and jumping over the drainage collecting pipe joint.

  In the present invention, the projected area when the water impingement portion is projected with the vertical plane orthogonal to the tube axis of the horizontal portion as the projection plane is 1/3 or more of the flowing water cross-sectional area of the horizontal portion excluding the drainage reduction member. Is preferred. As a result, most of the wastewater that has flowed into the drainage deceleration member collides with the water impingement portion, thereby being decelerated and diverted to the left and right. Moreover, the waste water that does not collide with the water impact part is decelerated by colliding with the waste water that has been split from the left and right together with the waste water that flows down from the upstream side. Accordingly, the wastewater that has flowed into the drainage reduction member is decelerated, the water force is weakened and discharged from the drainage reduction member, and it is difficult to be discharged while the water force is strong.

  In this invention, it is preferable that the flowing water cross-sectional area in the arbitrary locations of the said drainage deceleration member is larger than the flowing water cross-sectional area of the horizontal part except a drainage deceleration member. As a result, the drainage that has flowed into the drainage deceleration member collides with the drainage that has been decelerated and diverted to the left and right as the drainage that has flowed into the drainage deceleration member sequentially collides with the drainage deceleration member. Even if the flow of drainage stagnate, the stagnation drainage can be stored in the drainage reduction member to prevent the side branch pipe from becoming full. Therefore, the horizontal branch pipe is not filled to the position of the drainage trap of the sanitary equipment, and the drainage trap of the sanitary equipment can be prevented from being broken due to siphon phenomenon due to the inside of the horizontal branch pipe becoming full.

  In the present invention, it is preferable that the upper wall of the drainage reduction member is a flat surface, and at least the upper half of the outer side wall is a vertical surface substantially orthogonal to the upper wall. As a result, when the wastewater that has flowed into the drainage deceleration member collides with the water impingement portion and is diverted, the drainage is swung along the wall surface without weakening the water force. Or, since it collides with the outer side wall which is a vertical surface, it is possible to prevent the diverted wastewater from turning into a swirling flow.

  The drainage reduction member according to the present invention has left and right side walls that bulge outward and a water impingement part is provided inside, and the wastewater that has flowed into the interior from the inlet collides with the water impingement part. The left and right drained water that has been diverted in the direction of the water is merged while colliding on the back side of the water impingement portion, and flows out from the outlet.

  According to the present invention, the wastewater that has flowed into the drainage reduction member via the inlet is decelerated by colliding with the water impact portion, and the drainage that sequentially flows into the wastewater that has been shunted by the collision is collided and decelerated, The drained water that has been diverted to the left and right collides with the left and right side walls, is decelerated, receives the piping resistance when it flows down along the left and right side walls, and is further decelerated. However, the water flow is attenuated and flows out from the outlet, so that the flow rate of the drainage can be surely reduced.

  According to the present invention, two drainage pipes are connected to a drainage collecting pipe using an existing drainage collecting pipe joint, while preventing drainage from one lateral branching pipe from flowing into the opposite lateral branching pipe. It can be connected to the joint in an opposed state. In addition, the flow rate of the drainage can be reliably reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show an embodiment of the drainage system of a multi-layered building according to the present invention.

  This drainage system 1 is applied to a floor drainage toilet T as a sanitary facility in an apartment house. For the drainage standpipe 2 piped vertically through each floor of the apartment house, and the drainage standpipe 2 Drainage collecting pipe joint 3 arranged for each floor, one side branch pipe 4 piped over drainage collecting pipe joint 3 and toilet T, drainage collecting pipe joint 3 and sanitary facilities such as a bath (not shown) The other side branch pipe 40 and the other side branch pipe 40 are connected to the drainage collecting pipe joint 3 in the opposed state at the same height position. ing.

  The drainage collecting pipe joint 3 is provided with an upper joint part 31 and a lower joint part 32 for connecting to the drainage stack 2 at the upper end part and the lower end part as well known conventionally, and a side branch pipe 4 and 40, horizontal joint portions 33, 33 for connection to the same height position are provided in an opposed state.

  One side branch pipe 4 is piped between the floor F and the floor slab S, one end is connected to a drain pipe (not shown) of the toilet T via an elbow, and the other end of the drain collecting pipe joint 3. It is connected to one horizontal joint portion 33, and a horizontal portion 41 is formed between the elbow and the drainage collecting pipe joint 3. A drainage reduction member 5 is provided on the horizontal portion 41 of the horizontal branch pipe 4.

  As shown in detail in FIG. 2, the drainage reduction member 5 bulges the left and right side walls in a predetermined region of the horizontal portion 41 outward, and has a flat water-impacting portion 51 inside the upper wall and the lower wall. It is arranged and configured.

  Here, the drainage speed reduction member 5 is formed in a long hole whose surface is perpendicular to the tube axis of the horizontal portion 41 of the horizontal branch pipe 4 and is symmetrical with respect to the vertical surface including the tube axis of the horizontal portion 41. In addition, the flowing water cross-sectional area at an arbitrary position is set larger than the flowing water cross-sectional area of the horizontal portion 41 of the horizontal branch pipe 4 excluding the drainage reduction member 5. For example, as shown in FIG. 2B, the cross-sectional areas of the left flow path 5L and the right flow path 5R of the water impact section 51 where the flowing water cross-sectional area of the drainage deceleration member 5 is the smallest are shown in FIG. The flow cross-sectional area of the horizontal portion 41 of the horizontal branch 41 is set to be approximately equal to the flow cross-sectional area of the drainage speed reducing member 5. It has doubled.

  Further, the projection area when the water impact portion 51 is projected with the vertical plane orthogonal to the tube axis of the horizontal portion 41 of the horizontal branch pipe 4 as the projection surface is the horizontal area 41 of the horizontal branch 41 excluding the drainage reduction member 5. It is formed in a square size that covers the running water cross-sectional area.

  Next, a process in which the drainage flowing down the side branch pipe 4 configured as described above is decelerated in the drainage deceleration member 5 will be described.

  When the drainage flowing down the horizontal portion 41 of the horizontal branch pipe 4 flows into the drainage reduction member 5 through the inlet 5a, almost the entire amount collides with the water impact portion 51 and the water force is attenuated. Bypassing 51, the flow is diverted to the left flow path 5L and the right flow path 5R. At this time, because the cross-sectional shape of the drainage deceleration member 5 by the vertical plane perpendicular to the tube axis of the horizontal portion 41 of the horizontal branch pipe 4 is formed symmetrically with respect to the vertical plane including the tube axis of the horizontal portion 41, The drained water that has been decelerated is divided into the left channel 5L and the right channel 5R almost evenly.

  On the other hand, since the wastewater flowing into the drainage deceleration member 5 sequentially collides with the wastewater divided into the left and right, the water flow of the wastewater is further attenuated.

  By the way, since the new drainage is added to the drainage that has been decelerated and diverted to the left and right, the flow of the drainage stagnates and the water depth increases. Since it is set larger than the flowing water cross-sectional area of the horizontal portion 41 of the pipe 4, the stagnant drainage can be stored in the drainage reduction member 5, and the drainage flowing down the horizontal branch pipe 4 is drained from the toilet T in a full state. The trap is never reached. Thereby, the horizontal branch pipe 4 is in a full state, and the drainage reaches the drain trap of the toilet T, so that the drain trap can be prevented from being broken due to the siphon phenomenon.

  Further, the waste water that has been divided into the left and right sides is decelerated by colliding with the side walls in the left channel 5L and the right channel 5R, and flows down the bent left channel 5L and the right channel 5R. After being decelerated due to the pipe resistance caused by, the water merges while colliding on the back side of the water impingement part 51, and the water force is attenuated and discharged from the outlet 5b. In this case, since the waste water that has been divided to the left and right has substantially the same flow velocity and flow rate, the water flow of the separated waste water can be reliably attenuated. That is, as in the case where one of the water flows is strong, the waste water having the weak water flow can be pushed in at the time of merging, and the swirling flow can be prevented from being discharged from the drainage reduction member 5. It is possible to suppress jumping over the pipe joint 3 and flowing into the other side branch pipe 40.

  In this way, the wastewater that has flowed into the drainage deceleration member 5 through the inlet 5a collides with the water impingement part 51 and is decelerated, and the wastewater that sequentially flows into the wastewater that has been shunted by the collision collides and decelerates, and the shunted wastewater. Collides with the left and right side walls, is decelerated, receives the piping resistance when flowing down along the left and right side walls, is decelerated, the shunted drainage is merged and decelerated, and the drainage deceleration member 5 passes through the outlet 5b. Discharged.

  Accordingly, the drainage discharged from the drainage deceleration member 5 has a sufficiently dampened water flow, thereby preventing it from jumping over the drainage collecting pipe joint 3 and flowing into the opposite side branch pipe 40. it can. Moreover, since the existing drainage collecting pipe joint 3 can be used, it becomes possible to cope with a limited piping space.

  The drainage reduction member 5 is not limited to the example shown in FIG. 2. For example, as shown in FIG. 3, instead of the flat water-filling portion 51, the square-pillar water-filling portion 52 having a rhombic cross section. Although not shown in detail, the drainage reduction member 5A may be a triangular prism having a triangular section or a circular cylinder having a circular cross section with the apex angle facing the inlet 5a. Such a water-impact portion 52 and the like can divide the drainage water more evenly to the left and right as compared to the flat water-impact portion 51. Furthermore, as shown in FIG. 4, the drainage reduction member 5 </ b> B may be provided with a weir-shaped water impingement part 53 that forms a gap with the upper wall. In such a drainage reduction member 5 </ b> B, the drainage collides with the water impingement part 53 and is diverted to the right and left, flows over the water impingement part 53, and the diverted wastewater flows into the water impingement part 53. It will merge on the back side. In the water impingement part 53 of such a drainage deceleration member 5B, string-like or sheet-like foreign matters can be released upward, and the scavenging performance is improved.

  Furthermore, in the drainage deceleration member 5 described above, the cross-sectional shape by a vertical plane orthogonal to the tube axis of the horizontal portion 41 of the lateral branch pipe 4 is a long hole, that is, a flat plate shape in which the upper wall and the lower wall are parallel, and the side wall is Although the semicircular cross section is illustrated, as shown in FIG. 5, the drainage reduction member 5 </ b> C formed in a substantially horseshoe shape that rises up the upper half of the side wall and is substantially orthogonal to the flat upper wall. Good. In the case of such a side wall shape of the drainage reduction member 5C, when the drainage water divided into the left and right turns in the left and right flow paths 5L and 5R, it collides with the upper wall or collides with the side wall. It can suppress becoming a swirl flow.

  Furthermore, in the drainage deceleration member 5 described above, the one formed in a substantially box shape having a cross-sectional elongated hole shape is illustrated, but as shown in FIG. 6, the circular side branch pipe 4 is branched into two, After separating the horizontal branch pipe 4 by the tube diameter in the horizontal direction, it may be combined with one horizontal branch pipe 4 again to form the drainage reduction member 5D. In such a drainage speed reducing member 5D composed of two circular pipes, the inner side of each circular pipe from the branch line through which the two circular pipes intersect to the combined line through line. A water-impact portion 54 is formed by the side wall having a semicircular cross section.

  In this case, as shown in FIG. 7, the lateral branch tube 4 is formed in a reverse horseshoe shape, the reverse horseshoe-shaped lateral branch tube 4 is branched into two, and the lateral branch tube 4 is separated in the lateral direction by the tube diameter. Thereafter, the drainage deceleration member 5E may be formed by being united with one horizontal branch pipe 4 again. In the drainage reduction member 5E composed of two reverse horseshoe-shaped tubes, each reverse horseshoe-shaped tube from the branch line interphase formed by the intersection of the two reverse horseshoe tubes to the merged phase interphase line is formed. A water impact part 55 is formed by the inner side wall. In the drainage reduction member 5E composed of such two inverted horseshoe-shaped tubes, as described above, the generation of swirling flow can be suppressed.

  Furthermore, in place of the drainage reduction members 5D and 5E made of two circular tubes or reverse horseshoe-shaped tubes, a drainage reduction member made of two oval tubes may be used.

  In addition, in embodiment mentioned above, although the case where the drainage deceleration member 5 was applied to the side branch pipe 4 of the floor drainage type toilet T was demonstrated, you may use for the side branch pipe of a wall drainage type toilet. In this case, the drainage reduction member 5 may be provided in the horizontal portion 41 of the horizontal branch pipe 4 excluding the crank-shaped bent portion.

  Further, the drainage reduction member 5 may be provided integrally with the horizontal portion 41 of the side branch pipe 4, or may be provided separately from the side branch pipe 4 and connected as necessary.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view illustrating a partially omitted embodiment of a drainage system for a multilayer building according to the present invention and a plan view partially broken away. It is the cross-sectional view which expands and shows the drainage deceleration member of the side branch pipe which comprises the drainage system of FIG. 1, and its AA sectional view. It is the cross-sectional view which expands and shows other embodiment of the drainage deceleration member of the side branch pipe which comprises the drainage system of this invention, and its BB sectional drawing. It is the cross-sectional view which expands and shows another embodiment of the drainage deceleration member of the side branch pipe which comprises the drainage system of this invention, and its CC sectional view. It is the cross-sectional view which expands and shows another other embodiment of the drainage deceleration member of the side branch pipe which comprises the drainage system of this invention, and its DD sectional view. It is the cross-sectional view which expands and shows further another embodiment of the drainage deceleration member of the side branch pipe which comprises the drainage system of this invention, and its EE sectional view. It is the cross-sectional view which expands and shows further another embodiment of the drainage deceleration member of the side branch pipe which comprises the drainage system of this invention, and its FF sectional view taken on the line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drainage system 2 Drainage standpipe 3 Drainage collecting pipe joint 4,40 Side branch pipe 41 Horizontal part 5,5A, 5B, 5C, 5D, 5E Drainage reduction member 51,52,53,54,55 Water impingement part T Toilet

Claims (6)

  Connected between drainage standpipe piped vertically through each floor of the multi-layered building, drainage collecting pipe joints installed on each floor with respect to the drainage standpipe, and drainage collecting pipe joints and sanitary equipment A drainage system for a multi-layered building in which two of these side branch pipes are connected to a drainage collecting pipe joint so as to face each other. The left and right side walls bulge outward, and a drainage reduction member provided with a water impingement part is provided inside. The drainage that has flowed into the drainage reduction member collides with the water impingement part, and the left and right sides A drainage system for a multi-layered building characterized in that the left and right drained water that has been shunted are joined and flowed out while colliding with each other on the back side of the water impact section.   The drainage of a multi-layered building according to claim 1, wherein the cross-sectional shape of the drainage moderating member by the vertical plane orthogonal to the horizontal pipe axis is symmetrical with respect to the vertical plane including the horizontal pipe axis. system.   A projected area when a water impact portion is projected with a vertical plane orthogonal to the tube axis of the horizontal portion as a projection plane is 1/3 or more of a flowing water cross-sectional area of a horizontal portion excluding a drainage reduction member. The drainage system for multi-layer buildings according to claim 1 or 2.   The drainage system for a multilayer building according to any one of claims 1 to 3, wherein a flowing water cross-sectional area at an arbitrary position of the drainage deceleration member is larger than a flowing water cross-sectional area of a horizontal portion excluding the drainage deceleration member. .   5. The multilayer according to claim 1, wherein an upper wall of the drainage reduction member is a flat surface, and at least an upper half portion of an outer side wall is a vertical surface substantially orthogonal to the upper wall. Building drainage system.   The left and right side walls bulge outward, and a water paddle is provided inside. The drainage that flows into the inside through the inflow port collides with the water pad and is divided to the left and right to be split. A drainage reduction member characterized in that the left and right drainage are merged while colliding with each other on the back side of the water impingement part and flow out from the outlet.

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