JP2007315036A - Siphon drainage system with water storage section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a siphon drainage system which can discharge a large amount of wastewater at one time, which is equipped with a water storage section for storing the large amount of wastewater, which prevents the wastewater from overflowing from water section fittings, whether the inside of the water storage section is subjected to positive or negative pressure, and which prevents each trap from running short of seal water. <P>SOLUTION: This siphon drainage system with the water storage section comprises: a drain riser 4; connecting pipes 2a and 2b from the water section fittings 2A and 2B; the water storage section which is connected to the connecting pipes; a horizontal pipe 3, the opening of which is connected to the vicinity of the bottom of the water storage section; and a merging section 5 which is equipped with a water head (Hs). The horizontal pipe 3 is connected to the merging section. The siphon drainage system is equipped with a means for regulating the water level of the wastewater which is accumulated in the water storage section, and an air pipe 10, the opening of which is connected to a portion preventing the intrusion of the wastewater. In the Fig., the traps are numbered 2c and 2d, respectively; the opening of the air pipe is numbered 10a; F represents a floor; and S represents a slab. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement of a siphon drainage system, and particularly relates to a siphon drainage system having a water storage section for a large amount of drainage at a time.

In recent years, a siphon drainage system (Patent Document 1) has been proposed with respect to a conventional gradient drainage system, and improvements in the details are also progressing. The outline of this siphon drainage system consists of a drainage stand, a siphon drainage pipe (hereinafter referred to as a horizontal draw pipe) from a watering device, and a confluence with a head of 50 cm or more. It is the drainage system connected to the said confluence | merging part, without joining with a horizontal draw pipe. And the water in a horizontal pulling pipe generates a siphon force corresponding to the head difference, and the water in the horizontal pulling pipe is drained.
JP 2000-297447 A

  However, in a watering device such as a kitchen, washing machine, unit bath, etc., in which a large amount of water flows at once, the drainage may overflow before the siphon force is generated in the horizontal pulling tube. For example, in the case of a unit bath, when drainage in a bathtub is performed, if siphon generation is slow, water may overflow from the drainage outlet on the washing station side.

  For this reason, this inventor has already proposed the drainage system which equips a drainage circuit with a water storage part in order to store a large amount of drainage once. As a further improvement of such a system, a drainage system in which drainage from a plurality of watering devices is guided to a water storage unit and siphon force is generated in the drainage circuit after the water storage unit has already been proposed. In this case, usually a plurality of horizontal pipes are connected, and the drainage force is adjusted, the generation time of the siphon force is adjusted, and further, the noise reduction during drainage is further reduced.

  The siphon drainage system with the water storage section described above is extremely effective and has the great advantage that the arrangement of the watering device can be almost freely arranged even if the distance between the drainage stack and the watering device is long, but further investigation is required. A point has been pointed out. Usually, the air around the drainage has an odor and cannot be opened indoors. For this reason, it goes without saying that the water reservoir is preferably a completely sealed type. However, when drainage from multiple watering devices collects in the water storage unit, if a large amount of wastewater flows into the water storage unit from one watering device, the pressure inside the water storage unit becomes positive before the siphon force is activated. For this reason, the air in the water storage section may enter the connecting pipe of another watering device, causing the water in the trap of the other device to flow backward and ejecting the waste water.

  On the other hand, when the siphon force is activated, the pressure inside the water reservoir becomes negative, and if other watering devices are connected, the water in the trap is sucked into the water reservoir, and the trap is broken. Sometimes it happens. In this case, the odor coming from the waste water enters the room without acting as a trap.

  As a countermeasure, it is conceivable to install a vacuum breaker in the water storage body. However, it is possible to eliminate defects such as trapping of traps in watering equipment when the pressure inside the reservoir is negative, but when the pressure inside the reservoir is positive, air escapes to the atmosphere due to odor. The occurrence of discharge of drainage from the trap in the watering device cannot be eliminated.

  Moreover, the water storage section is usually installed in a narrow space and is often placed under the floor. In this case, the height of the water storage section is limited, and the height is only about 10 cm. The countermeasures are also quite difficult.

  Further, it is preferable to perform regular maintenance even in the siphon drainage system, but there is also a problem that the timing of the maintenance is difficult to understand particularly in the drainage system having a water storage section.

  The present invention is a siphon drainage system that allows a large amount of water to flow at a time, such as in a kitchen, and is provided with a water storage part for storing a large amount of water, and drains from a watering device regardless of whether the water storage part is positive or negative. It is intended to provide a siphon drainage system that does not overflow, and does not cause the traps to run out of water.

  The gist of the present invention is a drainage standpipe, a connecting pipe from a watering device, a water storage part connected to the connecting pipe, a horizontal pipe having an opening connected near the bottom of the water storage part, and a water head (Hs ), A siphon drainage system in which the horizontal pipe is connected to the merge section, the means for regulating the water level of the drainage accumulated in the water reservoir, and the opening in the site where the drainage does not enter The siphon drainage system is characterized in that the vent pipe is connected to a drainage stack or a loop vent pipe or opened to the atmosphere.

  More specifically, a drainage stack, a connection pipe from a plurality of watering devices, a water storage part connected to the connection pipe, and a plurality of horizontal pipes having an opening connected near the bottom of the water storage part. A siphon drainage system comprising a merging section provided with a head (Hs), wherein the plurality of laterally drawn pipes are connected to the merging section, and means for regulating the level of drainage accumulated in the water storage section; And a vent pipe with an opening connected to the upper part, and as a means for regulating the water level of the drainage, a partition member whose top is opened with a connecting pipe from a watering device and a horizontal pipe as a pair is provided in the water storage section. The vent pipe opening is connected to the water storage section partitioned by the partition member, and the opening is surrounded by a surrounding member whose height is higher than that of the partition member. Trachea to drainage stack or loop vent It is continued, or those according to the siphon drainage system, characterized in that it is open to the atmosphere.

  The present invention is provided with means for adjusting the water level of the drainage in the water storage section, and is provided with a horizontal pipe provided for siphon drainage and a vent pipe mainly for controlling air flow. The impact of the positive pressure in the water storage area and the negative pressure after the siphon was started could be minimized. The degree of freedom is greatly improved.

  In the present invention, particularly in the case of so-called reservoir drainage in which a large amount of drainage flows at a time, a drainage unit that temporarily stores this drainage until siphon activation occurs, and drainage provided with such a reservoir. It is an improvement of the shortcomings in the system. In other words, it eliminates the influence on the connected watering device even when the water storage part generated when flowing a large amount of water at a time is positive pressure or negative pressure after siphon activation. In the former, the drainage from the traps in each watering device does not spout, and in the latter, the siphon drainage system in which the sealing water does not run out of each trap.

  The biggest feature is the improvement of the above-mentioned drawbacks by installing a horizontal pipe for siphon drainage and a ventilation pipe exclusively for ventilation in the water storage part, and adopting a regulation means that the water level in the water storage part does not exceed a certain level. is there. For this reason, specifically, the size of the water storage part is designed for the planned amount of drainage, and there are a plurality of horizontal pipes used for siphon drainage, or the pipe diameter and length are specified. The water level in the water storage unit should be above a certain level, such as by providing a partition member in the water storage unit to speed up siphon activation and providing a weir (enclosure member) to prevent drainage from entering the vent pipe opening. In this case, an opening portion of the vent pipe is connected to a portion above this water level.

  First, when a large amount of drainage flows from the watering device into the water storage unit, the water storage unit has a positive pressure. However, the air in the water storage section escapes to the drainage stack, the ventilation loop pipe, or the atmosphere through the ventilation pipe having the opening connected to the top of the water storage section or in the vicinity thereof. This eliminates the phenomenon of drainage of water discharged from a watering device connected to the water reservoir. Of course, it goes without saying that it may be opened to the atmosphere at a position where there is no problem in terms of odor.

  On the other hand, after that, when siphon activation is caused by the horizontal pulling pipe, the wastewater stored in the water storage section is suddenly guided into the drainage stack through the horizontal pulling pipe. At this time, the inside of the water storage section becomes negative pressure, but air is replenished through the vent pipe, the negative pressure is eliminated, and the trap of the watering device connected to the water storage section is eliminated. .

  In order to exert this function, the present invention provides a special relationship between the horizontal pipe and the vent pipe connected to the water reservoir, and provides functions for siphon generation and drainage, and venting functions. Separated. For this reason, in this invention, the means which regulates the water level of the waste_water | drain collected in a water storage part was employ | adopted. Such means is a means for preventing the water level in the water reservoir from reaching the opening of the vent pipe when the siphon is activated, and connecting a plurality of horizontal pipes to adjust the siphon drainage time (Claim 2). Select the thickness of the horizontal pipe to adjust the siphon generation time, and surround the opening part of the ventilation pipe, preferably surrounded by an enclosing member whose top height is higher than the partition member (Claim 4). 6) Various means can be taken such as adjusting the water level, or providing a partition member having an open top in the water storage section (Claim 5) to adjust the water level by adjusting the siphon generation time. Another means is to project the top of the water reservoir upward and connect the vent pipe opening to the projecting portion (Claim 7).

  The ventilation pipe is provided exclusively for ventilation, and is basically not used as a horizontal pipe. If used as a horizontal pipe, drainage remains in the pipe after siphon drainage is completed. For this reason, when the next siphon drainage, quick ventilation cannot be performed and sufficient effects cannot be exhibited. For this reason, the drainage treatment capacity and the water storage capacity are designed such that the functions of drainage and ventilation are separated and the pipes are connected independently.

  As described above, the connection position of the vent pipe is an overflow shape, and it is installed at a position where the drainage can enter only in the unlikely event of drainage. In other words, connect the opening of the ventilation pipe to the highest possible position of the water storage part, or provide a partition member to speed up the siphon activation, regulate the water level in the water storage part, and further, with the enclosure member that is taller than the partition member It is preferable to have a structure that surrounds the opening of the ventilation pipe and does not allow water to flow in unless the enclosure is exceeded. As described above, in order to prevent water from entering the vent pipe, the effective capacity of the water storage section is set to a position where water does not enter the vent pipe.

  In the unlikely event that the horizontal draw pipe becomes clogged or the pipe wall begins to become dirty and the drainage becomes worse, the water level in the reservoir rises, causing water to enter the vent pipe. Since the drainage will remain in the vent pipe, the trapping sound will start to sound from the trap part at the beginning of drainage. When this noise occurs, there is a great merit that the maintenance time can be specified with reference to this noise. It should be noted that a part of the ventilation pipe is provided with a place where water easily collects, and a drain or the like is installed in the part to facilitate maintenance. It is sufficient that the vent pipe is thinner than the horizontal pull pipe.

  In addition, it goes without saying that a connecting pipe from a plurality of watering devices can be connected to the water storage section (Claim 2). Usually, the connecting pipe is piped with a slight gradient (Claim 10). Is.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In each figure, the vent pipe 10 is constructed to extend freely and is usually constructed on the slab S in the same manner as the horizontal draw pipe 3. However, for convenience of drawing and explanation, the horizontal draw pipe 3 and the upper and lower pipes are present. Or there was an offset. FIG. 1 is a side view showing a concept of a siphon drainage system provided with a water reservoir, and FIG. 2 is a plan view thereof. This example shows the state before the improvement of the present invention. In the figure, 1 is a water storage unit, 2A and 2B are watering devices, and connecting pipes 2a and 2b are connected to the water storage unit 1 via traps 2c and 2d, respectively. . The water storage section 1 is connected to a resin horizontal pulling pipe 3 used for siphon drainage. And the opening part 3a of the horizontal drawing pipe 3 is formed in the bottom part of the water storage part 1. FIG. Further, 4 is a drainage standpipe, and 5 is a confluence portion provided with a water head Hs, and the horizontal pulling tube 3 is connected to the confluence portion 5, and a siphon force is provided with this water head Hs. In addition, since S is a slab and F is a floor and the water storage part 1 is arrange | positioned in the meantime, the height of the water storage part 1 is 10 cm inside and outside.

  Now, considering the case where there is a large amount of drainage from the watering device 2A, the inside of the water storage section 1 becomes positive because of this drainage. Therefore, the air in the water reservoir 1 searches for the outlet and enters the connecting pipe 2b of the watering device 2B, and pushes up the water in the trap 2d and overflows. On the other hand, after the siphon force is activated in the horizontal pulling pipe 3, the water in the water storage unit 1 is drained rapidly, and thus the water storage unit 1 has a negative pressure. For this reason, the water in the traps 2c and 2d of the connected watering devices 2A and 2B is drawn into the water storage unit 1 and the trap may be broken.

  FIG. 3 is a side view showing the concept of the siphon drainage system of the present invention, and FIG. 4 is a plan view thereof. Reference numerals 1 to 5, 2 </ b> A, 2 </ b> B, 2 a to 2 d, F, and S are as described above, and a description thereof is omitted here. Now, a vent pipe 10 having an opening 10a connected to the vicinity of the top surface of the water storage unit 1 is arranged, and the tip is connected to the junction 5. The water storage section 1 is connected to the number of the horizontal pulling pipes 3, the pipe diameter, etc. by design calculation so that the internal water level does not exceed a certain height h. In the illustrated example, the tip of the vent pipe 10 is connected to the merging portion 5, but is not limited to this, and is connected to the drainage stack 4 along the slab S as it is. However, the connection position is not limited. Further, although not shown, it is also preferable to connect to a loop pipe which is an exhaust pipe. Furthermore, you may open | release to air | atmosphere depending on the case.

  In the present invention, the water level in the water storage section 1 is regulated so as to be less than or equal to h by the number of the horizontal pulling pipes 3, the pipe diameter, and the like. That is, the siphon is designed and activated before the water level h is reached. For this reason, when a large amount of drainage flows into the water storage section 1, air escapes into the drainage stack 4 through the vent pipe 10, and thereby the inside of the water storage section 1 is excessively large. This prevents the positive pressure. Of course, the air in the water storage unit 1 is opened by the drainage stack 4, and no odor is generated in the room. Moreover, since the inside of the water storage part 1 does not become a big positive pressure, for example, the drainage does not spout or overflow from the watering device 2B. When the siphon is activated, the inside of the water storage unit 1 becomes negative pressure, but air is drawn from the vent pipe 10 by this amount. For this reason, the breakage of the trap of another watering device does not occur.

  FIG. 5 shows a water storage unit 1 in a watering device 2C having a large size in the height direction, such as a kitchen. The connecting pipe 2e is connected to the water storage unit 1 from the watering device 2C through a trap 2f. This is an example. The horizontal pipe 3 for siphon drainage is an example in which the opening is connected to the bottom of the water storage section 1 and the vent pipe 10 is connected to the bottom of the water storage section with an opening 10a. Even in this example, the horizontal pulling tube 3 and the like are calculated and adjusted so that the water level h in the water storage unit 1 becomes the highest level as in the above example. Of course, there is no adverse effect such as negative pressure when siphon drainage is performed, as well as the influence of positive pressure when drainage flows.

  FIG. 6 shows a drainage system in which the opening 10a of the ventilation pipe 10 is surrounded by a surrounding member 20 whose top is opened in the water storage section 1 as means for adjusting the water level. The enclosing member 20 divides the water storage section 1 into a large room 1a and a very small room 1b. The room 1a side is used as a means for collecting drainage, and the room 1b side allows air to enter and exit from the vent pipe 10. It has an allowed function. The air in the water reservoir 1 reaches the opening 10 a of the vent pipe 10 via the open top of the surrounding member 20. In the illustrated example, an example in which two horizontal pipes 3 are connected to the room 1a side is shown. Drainage does not basically enter the vent pipe 10 described above, but only air enters and exits. In this example as well, there is no adverse effect such as negative pressure when siphon drainage is performed, as well as the influence of positive pressure when drainage flows.

  FIG. 7 shows the water storage unit 1 shown in FIG. 6 divided into two parts 1aa and 1ab with a partition member 30 on the room 1a side. The top of the partition member 30 is opened as in the case of the enclosing member, and the drainage passes over this and flows down to another room and is stored. In addition, the top part of the partition member 30 is comprised by the thing whose height is lower than the top part of the surrounding member 20. FIG. A horizontal pipe is connected to each of the rooms 1aa and 1ab, and the amount of drainage is effectively divided by the partition member 30, so that siphon activation can be performed early. In this case as well, it is the same as in the above example, and basically the drainage does not enter the vent pipe 10, and only the air enters and exits. Even in this example, no adverse effect is brought about by the positive pressure or the negative pressure in the water reservoir 1.

  FIG. 8 shows a case where an air space 40 protruding upward is formed at the top of the water reservoir 1, which is suitable when there is a gap in the floor F, for example. The ventilation pipe 10 is connected to this air space, and the water level in the water storage section 1 is drained by siphon activation before reaching this part. Thus, when a certain amount of space is allowed on the water storage section, such as between the floors F and F, between the floor F and the wall pipe, or under the sink, the configuration shown in FIG. Although it can be adopted, further, by taking a measure so that the water level does not reach the top of the water storage unit 1, a vent pipe opening is formed at the top of the water storage unit 1 (that is, at a location above the water level). It is also possible to connect the air pipe 10a and lay the vent pipe 10 within an allowable space. Of course, this example also has no other adverse effect due to the positive pressure or the negative pressure in the water reservoir 1.

  The present invention is provided with means for adjusting the water level of the drainage in the water storage section, and has a horizontal pipe provided for siphon drainage and a vent pipe for controlling air in / out, separated in function, and a large amount of drainage The impact of the positive pressure in the water reservoir when there was a negative pressure and the negative pressure after the siphon was started could be minimized. Applicable.

FIG. 1 is a side view showing a conceptual diagram of a conventional siphon drainage system. FIG. 2 is a plan view of FIG. FIG. 3 is a side view showing a conceptual diagram of the first embodiment of the siphon drainage system of the present invention. FIG. 4 is a plan view of FIG. FIG. 5 is a side view showing a conceptual diagram of the second embodiment of the siphon drainage system of the present invention. FIG. 6 is a perspective view showing a conceptual diagram of a third embodiment of the siphon drainage system of the present invention. FIG. 7 is a perspective view showing a conceptual diagram of a fourth embodiment of the siphon drainage system of the present invention. FIG. 8: is the perspective view and side view which show the conceptual diagram of 5th Example of the siphon drainage system of this invention.

Explanation of symbols

1 water reservoir,
2A, 2B, 2C Watering equipment,
2a, 2b, 2e connecting pipe,
2c, 2d, 2f trap,
3 Horizontally drawn tube,
4 Drainage standpipe,
5 junction,
10 Vent pipe,
10a Vent opening,
20 Vent enclosing member,
30 partition members,
40 Air reservoir top protruding air space,
F floor,
S Slab.

Claims (10)

  A drainage stack, a connecting pipe from a watering device, a reservoir connected to the connecting pipe, a horizontal pipe having an opening connected to the bottom of the reservoir, and a confluence provided with a head (Hs) A siphon drainage system in which the horizontal draw pipe is connected to the merging part, a means for regulating the level of drainage accumulated in the water storage part, and a vent pipe having an opening connected to a part where the drainage does not enter The siphon drainage system with a water storage part is characterized in that the vent pipe is connected to a drainage stack or a loop vent pipe or opened to the atmosphere.   The siphon drainage system with a water storage part according to claim 1, wherein connecting pipes from a plurality of watering devices are connected to the water storage part.   The siphon drainage system with a water storage part according to claim 1 or 2, wherein a plurality of horizontal pipes are connected as means for regulating the water level of the wastewater accumulated in the water storage part.   The siphon drainage system with a water storage part according to any one of claims 1 to 3, wherein the vent pipe opening part is surrounded by a surrounding member whose top part is opened in the water storage part as means for regulating the water level of the wastewater accumulated in the water storage part.   The means for regulating the water level of the drainage accumulated in the water storage part is provided with a partition member in which the top part is opened in the water storage part as a pair of a connecting pipe and a horizontal pipe from the watering device. 4. The siphon drainage system with a water storage part according to any one of 4 above.   The siphon drainage system with a water storage unit according to claim 5, wherein the vent pipe opening is surrounded by a surrounding member having a height higher than that of the partition member.   The siphon drainage system with a water storage part according to claim 1, further comprising an air space that protrudes upward from the top of the water storage part and connects the opening of the ventilation pipe as means for regulating the water level of the water stored in the water storage part.   The siphon drainage system with a water storage part according to any one of claims 1 to 7, wherein the opening of the vent pipe is provided above the regulated water level.   The siphon drainage system with a water storage part according to any one of claims 1 to 8, wherein the connecting pipe from the watering device is a pipe having a downward slope toward the water storage part.   A drainage stack, a connecting pipe from a plurality of watering devices, a water storage part connected to the connecting pipe, a plurality of horizontal pipes having an opening connected near the bottom of the water storage part, and a water head (Hs) A siphon drainage system comprising the merging section provided, wherein the plurality of horizontal pipes are connected to the merging section, a means for regulating the water level of the drainage accumulated in the water storage section, and an opening above the regulation water level. And a connected vent pipe, and as a means for regulating the water level of the drainage, the water storage section is partitioned by a partition member whose top is opened as a pair of a connecting pipe and a horizontal pipe from a watering device, and A vent pipe opening is connected to the water storage section partitioned by the partition member, the opening is surrounded by a surrounding member whose height is higher than the partition member, and the vent pipe is a drainage stand or Connected to the loop vent pipe, or Siphon drainage system with water storage section, characterized in that it is open to the gas.

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