JP2017190626A - Siphon drainage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a siphon drainage system capable of restraining abnormal noise.SOLUTION: A siphon drainage system 10 includes a storage tank 20 for storing drain water flowing from the upstream side, a horizontal pipe 26A connected to the storage tank 20 and discharging the drain water from the storage tank 20 in a horizontal direction, a vertical pipe 26B arranged in the downstream side of the horizontal pipe 26A and generating siphon force by making the drain water from the horizontal pipe 26A flow down, and a third connection portion 24C of a T-shaped joint 24 provided in the horizontal pipe 26A and making air flow into the inside of the horizontal pipe 26A from the outside of the storage tank 20.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a siphon drainage system including a storage tank that temporarily stores and discharges drainage.

  For example, as shown in Patent Document 1, in a drainage system that uses the siphon force of a siphon drain pipe, a storage tank is provided between the water purifier and the horizontal pull pipe of the siphon drain pipe, and the drainage from the water purifier is siphoned. The structure (for example, refer patent document 1) which stores temporarily in a storage tank until is started is known.

JP2013-209868

  In the drainage system shown in Patent Document 1, for example, when drainage is performed from a bathtub, the drainage discharged from the bathtub flows into the storage tank. The wastewater that has flowed into the storage tank flows through the horizontal pulling pipe of the siphon drainage pipe, and then flows into the dredge pipe.

  In the siphon drain pipe, the siphon force does not occur unless the dredger is full of drainage and falls inside the dredger, so the amount of drainage from the siphon drain pipe flows into the storage tank until the siphon force is generated. Therefore, the water level of the drainage of the storage tank rises. After that, when the dredge is full of drainage and siphon force is generated, the amount of drainage from the siphon drainage pipe exceeds the amount of drainage flowing into the storage tank, and the water level of the drainage decreases.

  By the way, the siphon drain pipe where the siphon force is generated sucks the waste water in the storage tank quickly, in other words, because the suction force is large, when the water level drops to some extent, the water surface near the siphon drain pipe sucks the waste water. The siphon drain pipe may inhale the air inside the storage tank.

  When the siphon drain pipe sucks in the air inside the storage tank together with the drainage, an abnormal noise such as a zoom may be generated, and this abnormal noise resonates in the air layer of the storage tank. When an abnormal sound reverberates in the air layer of the storage tank, the wall surface of the storage tank is vibrated, and the abnormal sound may be finally released to the outside of the storage tank.

  An object of this invention is to suppress that a noise echoes in a storage tank in view of the said fact.

  The siphon drainage system according to claim 1 is a storage tank that stores wastewater that flows in from upstream, a horizontal pipe that is connected to the storage tank and discharges the drainage from the storage tank in a lateral direction, and the horizontal A soot pipe disposed downstream of the pulling pipe and generating a siphon force by flowing down the drainage from the horizontal pulling pipe; and the horizontal pulling pipe provided from the outside of the storage tank. And a ventilation part that is provided in the horizontal pipe and allows air outside the storage tank to flow into the horizontal pipe.

According to the siphon drainage system of the first aspect, when drainage flows into the storage tank, the drainage is temporarily stored in the storage tank.
The drainage that has flowed into the storage tank flows into the vertical pipe through the horizontal pipe, and siphon force is generated when the drained water drops due to gravity in the vertical pipe. When the siphon force is generated, the waste water in the storage tank is sucked toward the vertical pipe, and the waste water flows down as a full flow, so that the waste water is discharged quickly and efficiently.

  By the way, since the siphon force is not generated in the initial state where the drainage pipe has already flown into the storage tank at the stage where the wastewater has flown into the storage tank, The amount of wastewater per unit time by the pipe is small, and the level of wastewater rises in the storage tank.

  When the inside of the vertical pipe becomes full and siphon force is generated, the pressure in the horizontal pulling pipe becomes negative, the drainage of the storage tank is sucked, the water level of the drainage of the storage tank begins to drop, and the horizontal Air flows into the pull tube.

  Comparing the case where air flows into the horizontal pipe through the ventilation part and the case where air does not flow into the horizontal pipe, the latter has a larger suction force for sucking the waste water in the storage tank. If it is large, the water level of the waste water may be locally lowered to suck air and generate noise.

However, in the siphon drainage system according to the first aspect of the present invention, the suction pipe acting on the downstream side of the storage tank can appropriately reduce the suction force acting on the drainage in the storage tank. In the tank, it is possible to suppress the air from being sucked from the opening portion of the horizontal pulling tube, and to suppress the generation of abnormal noise inside the storage tank.
In addition, the “lateral direction” of the “horizontal pipe that discharges drainage in the horizontal direction” includes not only the horizontal direction but also a slight inclination (for example, 5 degrees or less).
“Ventilation” in the “vent” means that gas can pass through, and the “vent” is, in other words, a hole or a tube.

  According to a second aspect of the present invention, in the siphon drainage system according to the first aspect of the present invention, a vertical pipe arranged in the building, the vertical pipe where the vertical pipe joins, one end communicated with the ventilation portion, and the other end Has an air supply pipe connected to the standing pipe.

  Sound generated when air and drainage are mixed may leak to the outside through the ventilation portion. By connecting one end of the air supply pipe to the ventilation section and connecting the other end of the air supply pipe to the vertical pipe, the sound generated when air and drainage are mixed is released into the vertical pipe through the inside of the air supply pipe. Since it is not released to the outside (atmosphere), the noise level outside the storage tank can be reduced.

  According to a third aspect of the present invention, in the siphon drainage system according to the first or second aspect, the horizontal pulling pipe has an inclined portion in which a part of the storage tank side is inclined downward toward the downstream side in the drainage direction. The ventilation portion is provided on the storage tank side from the boundary between the inclined portion and the horizontal portion of the horizontal pipe adjacent to the downstream side of the inclined portion.

  After all the drainage in the storage tank has been discharged, the siphon force of the soot pipe acts on the drainage in the horizontal pulling tube, but when air is sucked from the middle of the horizontal pulling tube, However, the suction force is weak for the drainage remaining on the upstream side. When the horizontal pulling pipe upstream from the position where air is sucked is horizontal, the drainage remaining in the horizontal portion is difficult to flow with a weak suction force, and as a result, the drainage tends to remain in the horizontal portion.

  On the other hand, in the siphon drainage system according to the third aspect, since the part on the storage tank side is inclined downward toward the downstream side in the drainage direction from the connection portion of the horizontal pulling pipe with the air supply pipe, Drainage remaining on the storage tank side from the connection portion can flow by its own weight on the downstream side in the drainage direction, and drainage can be prevented from remaining in the storage tank side portion from the connection portion with the air supply pipe of the horizontal pulling pipe.

  According to a fourth aspect of the present invention, in the siphon drainage system according to any one of the first to third aspects, the ventilation portion is covered with a sound insulating material.

  In the siphon drainage system according to the fourth aspect, since the ventilation part is covered with the sound insulating material, the ventilation part can vibrate and can be insulated from the abnormal noise released from the ventilation part to the outside.

  According to the siphon drainage system of the present invention, there is an excellent effect that noise can be prevented from reverberating in the storage tank.

It is a side view showing the whole siphon drainage system composition concerning a 1st embodiment of the present invention. It is sectional drawing which shows the storage tank of the siphon drainage system which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the storage tank concerning a comparative example. It is sectional drawing which shows the storage tank in which the water level of the waste_water | drain of the siphon drainage system which concerns on the 1st Embodiment of this invention fell. It is a side view which shows the whole structure of the siphon drainage system which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows the T-shaped coupling vicinity of the siphon drainage system which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the storage tank of the siphon drainage system which concerns on the 4th Embodiment of this invention.

[First Embodiment]
A siphon drainage system 10 according to a first embodiment of the present invention will be described with reference to FIGS. The siphon drainage system 10 according to the present embodiment is a drainage system that efficiently drains drainage from a watering device using siphon force.

  As shown in FIG. 1, a floor panel 16 is disposed on the upper side of the slab 14 of the building 12 with a space from the slab 14. A watering device 17 is disposed on the floor panel 16. For example, the watering device 17 is for draining water such as a bathtub, a kitchen sink, and a dishwasher, but may be other items such as a washstand and a waterproof bathroom pan.

  One end of a pipe 18 through which drainage discharged from the watering device 17 flows is connected to the watering device 17. In addition, although the piping 18 is a pipe | tube made from a vinyl chloride, for example, you may be formed with the other synthetic resin.

(Reservoir)
As shown in FIG. 2, a storage tank 20 constituting a part of the siphon drainage system 10 is disposed on the slab 14.
The storage tank 20 is formed in a box shape so that the drainage from the watering device 17 can be temporarily stored. The storage tank 20 is a substantially rectangular parallelepiped, and is inclined so that the top plate 20A and the bottom plate 20B are lowered toward the arrow L direction in the drawing. The storage tank 20 is made of, for example, a synthetic resin material such as vinyl chloride.

The other end of the pipe 18 is connected to one side wall 20 </ b> C on the side of the drawing arrow R of the storage tank 20, so that drainage from the watering device 17 flows into the storage tank 20.
One end of the pipe 22 is connected to the other side wall 20 </ b> D on the side of the drawing arrow L direction facing the one side wall 20 </ b> C of the storage tank 20.

In addition, one end of a vent pipe 23 is connected to the top plate 20 </ b> A of the storage tank 20. The other end of the vent pipe 23 is connected to a standing pipe 28 (see FIG. 1) via a junction joint 30 (see FIG. 1) described later.
The pipe 22 and the vent pipe 23 are, for example, polyvinyl chloride pipes, but may be formed of other synthetic resins.

  The pipe 22 is inclined so as to be lowered toward the arrow L direction. A T-shaped joint 24 is disposed on the other end side of the pipe 22. The T-shaped joint 24 includes a first connection portion 24A to which the pipe 22 is connected, a second connection portion 24B disposed on the opposite side of the first connection portion 24A, and the first connection portion 24A and the second connection portion 24B. A third connecting portion 24C is provided that extends between the first connecting portion 24A and the second connecting portion 24B and extending upward in a direction orthogonal to the direction connecting the first connecting portion 24A and the second connecting portion 24B. The first connecting portion 24A and the second connecting portion 24B are provided coaxially, and the center line CL of the first connecting portion 24A and the second connecting portion 24B is inclined so as to be lowered toward the arrow L direction side. ing. The third connection portion 24C corresponds to the ventilation portion of the present invention. The T-shaped joint 24 is made of, for example, vinyl chloride, but may be made of other synthetic resins.

(Siphon drainage pipe)
The horizontal connection pipe 26 </ b> A of the siphon drain pipe 26 that constitutes a part of the siphon drainage system 10 is connected to the second connection portion 24 </ b> B of the T-shaped joint 24. The horizontal pulling pipe 26 </ b> A is partially inclined in the vicinity of the T-shaped joint 24, but the downstream side thereof is disposed on the slab 14 without any gradient in the lateral direction. As shown in FIG. 1, a vertical tube 26 </ b> B extending downward (vertically downward) is continuous with the downstream end of the horizontal pulling tube 26 </ b> A.
The siphon drain pipe 26 of the present embodiment is made of polybutene, but may be made of another synthetic resin having flexibility.

  In the present embodiment, the horizontal pulling pipe 26A, the portion from the first connecting portion 24A to the second connecting portion 24B of the T-shaped joint 24, and the pipe 22 correspond to the horizontal pulling tube of the present invention.

  A standing pipe 28 extending in the vertical direction is disposed in the building 12. A merging joint 30 is attached to the vertical pipe 28, and the waste water that has flowed through the siphon drain pipe 26 is discharged to the vertical pipe 28 via the merging joint 30.

An air supply pipe 32 extending upward is connected to the third connection portion 24 </ b> C of the T-shaped joint 24, and the inside of the T-shaped joint 24 communicates with the outside through the air supply pipe 32.
(Function, effect)
Next, the operation and effect of the siphon drainage system 10 of this embodiment will be described.
When drainage from the watering device 17 is discharged from the pipe 18, the drainage flows into the storage tank 20.

  In the storage tank 20, the bottom plate 20B is inclined so that the siphon drain pipe 26 side is lower than the pipe 18 side into which drainage flows. 26 and flows from the siphon drain pipe 26 side, and the water depth on the siphon drain pipe 26 side becomes deeper than the pipe 18 side.

  Then, as the wastewater flows into the storage tank 20 and the water level of the wastewater in the storage tank 20 rises, the air in the storage tank 20 is pushed and connected to the top plate 20A of the storage tank 20, And is discharged to the vertical pipe 28 via the junction joint 30. Thereby, waste water can be made to flow in the storage tank 20 quickly and efficiently.

  The wastewater that has flowed into the storage tank 20 flows into the siphon drainage pipe 26 through the pipe 22 and the T-shaped joint 24, and when the drainage that has become full falls down in the dredge pipe 26B due to gravity, the potential energy of the siphon head Hs. As a result, siphon force is generated. When the siphon force is generated, the wastewater in the storage tank is sucked toward the vertical pipe 26B, the wastewater flows down as a full flow, and the wastewater is efficiently discharged.

  By the way, since the siphon force is not generated in the initial state in which the inside of the pipe 26B of the siphon drain pipe 26 is not yet full at the stage where the waste water flows into the storage tank 20, the unit time that flows into the storage tank 20 The amount of drainage per unit time by the siphon drain pipe 26 is less than the amount of drainage per unit, and the level of drainage in the storage tank 20 rises.

  And when the inside of the soot pipe 26B of the siphon drain pipe 26 becomes full and siphon force is generated, the drainage of the storage tank 20 is sucked and the water level of the drainage of the storage tank 20 starts to fall.

  Here, the siphon drainage system 100 of a comparative example is demonstrated using FIG. In addition, the same code | symbol is attached | subjected to the same structure as this embodiment, and the description is abbreviate | omitted. As shown in FIG. 3, in the siphon drainage system 100 of the comparative example, the air supply pipe 32 is not provided, and the horizontal pulling pipe 26 </ b> A of the siphon drainage pipe 26 is directly connected to the side wall 20 </ b> D of the storage tank 20. Yes.

  In the siphon drainage system 100 of this comparative example, when the water level of the drainage in the storage tank 20 decreases to near the height of the opening portion of the horizontal pulling pipe 26A, the drainage suction amount per unit time of the siphon drainage pipe 26 due to the siphon force is reduced. Since it is very large, the water surface in the vicinity of the opening portion of the horizontal draw pipe 26A partially lowers, and the horizontal draw pipe 26A sucks the air in the storage tank 20, and in the storage tank 20, for example, an abnormal noise N such as zoom May occur. The abnormal noise N may resonate in the air layer of the storage tank 20 to vibrate the wall surface of the storage tank 20, and the abnormal noise N may be emitted to the outside of the storage tank 20.

  On the other hand, in the siphon drainage system 10 of the present embodiment, as shown in FIG. 4, when the water level of the drainage of the storage tank 20 is lowered (the same height as that of the comparative example), the siphon force (suction force) generated in the vertical pipe 26A. ), The inside of the T-shaped joint 24 of the third connection portion 24C becomes negative pressure, and the air supply pipe 32 sucks the air A under the floor. Since the siphon drain pipe 26 sucks air A (air outside the storage tank 20) downstream of the storage tank 20, the suction force acting on the drainage in the storage tank 20 is appropriately reduced. In 20, it is possible to suppress the water surface in the vicinity of the opening portion of the pipe 22 from partially lowering and sucking air in the storage tank 20.

  For this reason, generation | occurrence | production of the abnormal noise which arises when the air in the storage tank 20 is attracted | sucked can be suppressed, and since the abnormal noise does not echo in the storage tank 20, the wall surface of the storage tank 20 vibrates. It is also suppressed that abnormal noise is released to the outside of the storage tank 20. Thus, in the siphon drainage system 10 of this embodiment, it is suppressed that the noise at the time of drainage propagates with respect to an indoor environment.

  When the siphon drain pipe 26 sucked air A through the air supply pipe 32, abnormal noise was generated due to air mixed with the drainage inside the T-shaped joint 24 and passed through the air supply pipe 32. Abnormal noise may be emitted to the outside of the air supply pipe 32. However, the level of abnormal noise generated inside the T-shaped joint 24 is very small compared to the abnormal noise reverberating in the storage tank 20 as in the comparative example. Furthermore, since the abnormal noise generated inside the T-shaped joint 24 is blocked by the drainage that is full in the pipe 22 and does not propagate to the air layer in the storage tank 20, In the air layer, abnormal noise generated inside the T-shaped joint 24 does not reverberate.

  As shown in FIG. 2, the portion P where the air sucked from the air supply pipe 32 contacts the drainage, in other words, the center line CL of the first connection portion 24A and the second connection portion 24B, and the center line of the second connection portion 24C. The distance DL from the intersection of the storage tank 20 to the inner surface of the storage tank 20 may be set so that the drainage path between the portion P and the storage tank 20 becomes full with drainage during drainage, so that the distance DL is shortened. Alternatively, the pipe 22 may be abolished and the T-shaped joint 24 may be directly connected to the storage tank 20, or the pipe 22 may be made longer than FIG. 2 so that the distance DL becomes longer. In other words, when discharging the waste water from the storage tank 20, the distance DL may be set so as to suppress the inhalation of air in the storage tank 20 that is the cause of the generation of abnormal noise reverberating in the storage tank 20.

  By the way, even after all the waste water in the storage tank 20 has been discharged, the siphon force of the soot pipe 26B against the waste water remaining in the horizontal pulling pipe 26A until the waste water in the soot pipe 26B has finished dropping. Works. However, when air is sucked in the middle of the drainage path on the downstream side of the storage tank 20, the suction force is weak for the drainage remaining in the drainage path on the upstream side from the position where the air is sucked. End up. Therefore, if the drainage path upstream from the position where air is sucked is horizontal, the drainage remaining in the horizontal part is difficult to flow downstream with a weak suction force. As a result, the drainage remains in the horizontal part. Easy situation.

  In the siphon drainage system 10 of the present embodiment, the drainage path on the storage tank 20 side is inclined toward the downstream side in the drainage direction from the portion P where the air sucked from the supply pipe 32 contacts the drainage. Wastewater remaining in the drainage path on the storage tank 20 side from the portion P where the air sucked from the drainage contacts with the drainage flows by its own weight toward the downstream side in the drainage direction, and drains from the part P to the portion on the storage tank 20 side. Can be left.

  The portion P where the sucked air is in contact with the drainage is the portion where the drainage path is inclined as in this embodiment, or the boundary SP between the inclined portion 26Aa and the horizontal portion 26Ab of the horizontal pulling tube 26A, in other words, It is preferable to provide at the upstream end of the horizontal portion 26b.

  Although there is no restriction | limiting in particular in the length of the air supply pipe 32, if the waste_water | drain does not leak outside, the air supply pipe 32 may be omitted.

[Second Embodiment]
A siphon drainage system 10 according to a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 5, in the siphon drainage system 10 according to the present embodiment, the air supply pipe 32 connected to the T-shaped joint 24 is formed longer than the first embodiment, and the end of the air supply pipe 32 is formed. Is connected to the merging joint 30. In the present embodiment, the air supply pipe 32 sucks the air in the vertical pipe 28.

  In the siphon drainage system 10 according to the present embodiment, the abnormal noise generated inside the T-shaped joint 24 is released into the standing pipe 28 through the inside of the air supply pipe 32. It can be suppressed.

[Third Embodiment]
A siphon drainage system 10 according to a third embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.

As shown in FIG. 6, in the siphon drainage system 10 according to the present embodiment, the T-shaped joint 24 is covered with a sound insulating material 34.
The sound insulating material 34 is formed of, for example, a porous (sponge-like) cushion material 36 such as urethane or polyethylene on the side in contact with the T-shaped joint 24, and the side opposite to the T-shaped joint 24 has no gap. A sheet-like or belt-like one formed of the elastic body 38 can be used. Note that the sound insulating material 34 is not limited to the structure of the present embodiment, and any known commercially available sound insulating material can be used as long as the sound can be sound-insulated.

When the abnormal noise (air vibration) generated inside the T-shaped joint 24 passes through the third connecting portion 24C, the third connecting portion 24C vibrates, and the third connecting portion 24C vibrates. An abnormal sound may be emitted outward from the third connection portion 24C. However, since the T-shaped joint 24 of the present embodiment covers not only the third connecting portion 24C but also the entire T-shaped joint 24 with the sound insulating material 34, abnormal noise emitted from the T-shaped joint 24 is not generated. Sound insulation is performed by the sound insulation material 34, and the release of abnormal noise emitted from the T-shaped joint 24 into the floor can be suppressed.
When the air supply pipe 32, the pipe 22, and the horizontal pulling pipe 26A vibrate, the air supply pipe 32, the pipe 22, and the horizontal pulling pipe 26A may be covered with a sound insulating material 34 as necessary. Moreover, you may change these from resin to metal so that the T-shaped coupling 24, the air supply pipe 32, and the piping 22 may not vibrate easily.

[Fourth Embodiment]
A siphon drainage system 10 according to a fourth embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.
The storage tank 20 of the present embodiment is substantially divided into three chambers by two partition walls 40. Each chamber communicates at the top. Water storage devices 17A, 17B, and 17C are connected to the storage tank 20 through pipes 18 and siphon drain pipes 26 through pipes 22 and T-shaped joints 24 corresponding to the respective rooms. It is connected.
In the storage tank 20 of the present embodiment, the interior is partitioned into three chambers, but the number of partitions can be increased or decreased as appropriate.

[Other Embodiments]
In addition, although an example of embodiment was demonstrated about this invention, this invention is not limited to this embodiment, Other various embodiment is possible within the scope of the present invention.

In the above embodiment, the horizontal pipe 26A of the siphon drain pipe 26 is connected to the storage tank 20 via the T-shaped joint 24 and the pipe 22, but the end of the horizontal pipe 26A is directly connected to the storage tank 20. May be. In this case, a hole may be processed in the horizontal pulling pipe 26A, and the air supply pipe 32 may be connected to the processed hole.

  Although the storage tank 20 has a rectangular box shape, the storage tank 20 is not limited to a rectangular box shape, and may have other shapes such as a cylindrical shape with a circular cross section with both ends closed.

  In the second embodiment, the end of the air supply pipe 32 is connected to the merging joint 30, but the end of the air supply pipe 32 may be connected to the vent pipe 23. Also in this embodiment, the air supply pipe 32 can suck the air in the standing pipe 8 through the vent pipe 23.

  DESCRIPTION OF SYMBOLS 10 ... Siphon drainage system, 12 ... Building (building), 20 ... Reservoir, 26A ... Horizontally drawn pipe, 26Aa ... Inclined part, 26Ab ... Horizontal part, 26B ... Saddle pipe, 24C ... Third connection part (ventilation part) 28 ... Stand pipe 32 ... Air supply pipe 34 ... Sound insulation

Claims (4)

A storage tank for storing wastewater flowing in from upstream,
A horizontal pulling pipe connected to the storage tank and discharging the drainage from the storage tank in a lateral direction;
A soot pipe that is arranged downstream of the horizontal pipe and that generates siphon force by flowing down the drainage from the horizontal pipe;
A ventilation portion provided in the horizontal pulling tube, allowing air outside the storage tank to flow into the horizontal pulling tube;
Having siphon drainage system. A vertical pipe arranged in a building in a vertical direction, where the vertical pipes join,
An air supply pipe having one end communicating with the vent and the other end connected to the vertical pipe;
The siphon drainage system according to claim 1, comprising: The horizontal pulling pipe has a slope part in which a part on the storage tank side slopes downward toward the downstream side in the direction of drainage,
The siphon according to claim 1 or 2, wherein the ventilation portion is provided on a storage tank side from a boundary between the inclined portion and a horizontal portion of the horizontal pulling pipe adjacent to a downstream side of the inclined portion. Drainage system.   The siphon drainage system according to any one of claims 1 to 3, wherein the ventilation portion is covered with a sound insulating material.