JPH063277B2 - Deployment drainage fitting - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

TECHNICAL FIELD The present invention relates to a drainage joint for expansion that connects a horizontal main pipe for horizontal deployment and a downstream drainage vertical pipe in a drainage system pipe used for high-rise apartment houses such as apartments and buildings for other uses.

[Prior art]

As a conventional drainage piping system, a two-pipe drainage system consisting of a drainage vertical pipe, a ventilation vertical pipe attached to it, a drainage horizontal pipe for each floor of a multi-storey building A single pipe type that uses a system or a special joint that tries to maintain mutual communication of air across the entire drainage system by forming a ventilation core from the pipe wall flow to the drainage system by means of baffles, guides, rings, etc. Drainage system has been proposed. FIG. 9 is a piping configuration diagram showing a conventional two-pipe type drainage system. In the figure, 1 is a drainage pipe commonly used for each floor in a multi-storey building, 2 is a T-pipe, TY pipe in this drainage pipe 1. , Drainage lateral branch pipes of each floor connected via intermediate joints 3 for each floor, such as vent pipes, 2a is an instrument trap connected to these drainage lateral branch pipes 2, and 9 is the maximum of the drainage vertical pipe 1 A horizontally expanded horizontal main pipe 10 connected and arranged at the lower end via an intermediate leg joint 4 is a drainage joint for expansion connected to the downstream end of the horizontal main pipe 9. At the lower end of this drainage joint 10 for deployment, a downstream drainage pipe 15
Is connected to the downstream side drainage vertical pipe 15, and a site main horizontal pipe 17 and the like is connected to the lower end of the downstream drainage vertical pipe 15 via a lowermost leg joint 16. Then, the downstream end of the horizontal main pipe or the like 17 in the site is connected to a public sewer pipe (not shown), or a drain joint for a discharge end (not shown in FIG. 9) is connected. 5 is a proper place of the drainage pipe 1 and the drainage joint 1 for deployment
No. 0 and the downstream drainage pipe 15 are ventilation pipes connected to appropriate places and opening their inside to the atmosphere.

[Problems to be Solved by the Invention]

In the conventional drainage piping system, the intermediate joint 3, the expansion drainage joint 10, the drainage vertical pipe 1, the expansion drainage joint 10, and the joint connecting the downstream side drainage vertical pipe 15 and the ventilation pipe 5 are shown in FIG. At a portion A in the drainage vertical pipe 1 shown in FIG. 1, a right angle inflow pipe blockage occurs, an air suction phenomenon in the horizontal drainage pipe 2 at a portion B, a backflow phenomenon into the ventilation pipe at a portion C,
In the part, a pipe is blocked by the water film adhering to the inner wall of the pipe, a jumping phenomenon occurs in the part E, and in the part F, when drainage flows from the lateral branch pipe 2 into the drainage vertical pipe 1,
The inflowing drainage collides with the pipe wall of the drainage vertical pipe 1 or turbulent flow due to contact with the vertical wall when the drainage vertical pipe 1 falls, collision of mutual drainage, collision with the bottom of the bottom floor joint, etc. There was a problem in the joint shape that generated drainage noise and detergent bubbles were generated. Moreover, even in the conventional single pipe drainage system using the special joint, the vertical pipe special joint has the above-mentioned problems of the section E,
There is a risk that foreign matter may mix into the drainage from projections such as baffles, guides, and rings, and clogs may occur. Furthermore, after the deployment system, a relief vent pipe or return vent pipe with the same complicated piping structure as the two-pipe drainage system. However, there was a problem that the ventilation method had to be used. In the standing pipe and the deployment system of the existing drainage system as described above, the pressure inside the pipe of the drainage system is abnormally increased due to the problems of the above-mentioned parts A to E to break the sealing water of the trap attached to the sanitary equipment, The function to drain the drainage safely and promptly to the outside by natural gravity, such as the backflow of odors and the invasion of harmful insects to destroy the indoor environment. On the other hand, there is a problem that the function of protecting the sealing water of the drain trap by supplying or draining air and smoothing the drainage flow is insufficient, and it has not reached the purpose. Furthermore, in high-rise apartments, a large amount of wastewater is rapidly dropped, which causes collision noise and drop impact drainage noise, and the abnormal rise in pipe pressure causes backflow of foam contained in laundry drainage.・ It is a cause of trouble. In addition, in the development system of the drainage system, the ground floor (1st floor) or the floor directly above (2nd floor), etc. are provided for store use rather than being applied to the residential floor because of the usage pattern of the building. Since the position of the shaft that houses the system is changed, the vertical pipes that span the multi-storey floor will also have to be deployed. Therefore, in the drainage system below the developed part, the problems of the above-mentioned parts A to E occur, and in both cases of the two-pipe type and the single-pipe type, a ventilation pipe is added to maintain the performance from the shape of the joint. It has a complicated piping system. However, even with such a complicated piping system, the problem cannot be solved, and the causes of the above-mentioned parts A to E affect the vertical pipes that span the multi-story, and deteriorate the performance of the entire drainage system. There was a point. An object of the present invention is to provide a drainage joint for deployment that solves the above-mentioned various problems.

[Means for Solving the Problems]

The drainage joint for deployment of the present invention is a pipe for connecting a horizontal branch pipe in which each existing drainage system is horizontally deployed and a drainage vertical pipe that receives the horizontal branch pipe, which are connected by T-shaped pipes or TY-shaped pipes. In contrast to the method, the diameter of the joint body is large so that the swirl flow is given to the drainage flowing from the horizontally expanded horizontal main pipe to the drainage vertical pipe, and the pipe wall flow is generated along the inner peripheral surface of the downstream side drain vertical pipe. And, the downstream side of the joint body is formed in a gradually tapering shape,
A straightening plate for preventing jumping is provided in the joint body for suppressing jumping of inflow and drainage from the horizontal main pipe and for promptly guiding the inflow and drainage to the downstream side without blocking the inflow connection port of the horizontal main pipe. At the same time, a return vent pipe connection port is provided at the upper end of the joint body for supplying or discharging air in response to fluctuations in the pipe internal pressure due to large amounts of drainage or detergent bubbles. Further, the expansion drainage joint of the present invention can be applied to a two-layer standing pipe system by configuring the drainage joint as a two-layer pipe type consisting of a joint inner pipe and a joint outer pipe in the same manner as above. It is characterized by having done.

[Action]

The drainage joint for deployment in the present invention has the above-mentioned configuration, and the drainage pipe for drainage of each floor extending to the multi-storey floor, the drainage horizontal main pipe for receiving the drainage pipe, and the flow of the drainage when advancing from the lowest floor vertical pipe to the horizontal main pipe By controlling the drainage system,
The problems related to the ventilation system will be eliminated, and the complicated piping system will be simplified, and the construction will be simplified. That is, the drainage flowing in from the tangential direction to the axis of the joint body collides with the inner wall of the joint body at a deep angle, becomes a swirling flow along the inner wall of the joint body, and the downstream side becomes gradually tapered. A pipe wall flow is formed along the downstream drainage pipe that receives the joint body while amplifying the swirling flow by the downstream portion of the joint body. The flow velocity of the wastewater forming the pipe wall flow is reduced due to its viscosity, which suppresses the jumping phenomenon and also produces a drainage noise and a drop impact, thereby providing a silent effect. Moreover, even if the flow direction is changed by the expansion piping part, a swirling flow forms a ventilation core in the vertical pipe system, the expansion system, and the horizontal main pipe system, so that smooth mutual flow can be maintained throughout the drainage system. , It is kept at about atmospheric pressure, and it is possible to prevent the sealing water from breaking down. Further, in particular, by the flow control plate for preventing jumping in the joint body, since jumping up of the drainage flowing into the joint body from the horizontal main pipe and colliding with the inner wall of the joint body is suppressed, the inflow connection port of the horizontal main pipe In addition to being able to reliably prevent blockage, it quickly guides the inflowing drainage in the joint body to the downstream side, and in case of abnormal pressure rise in the pipe pressure of each drainage system due to a large amount of drainage or detergent foam, etc. The pressure balance is maintained by replenishing or discharging air from the double-layered ventilation path through the return ventilation connection port at the top of the section and the ventilation tube.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a single pipe type expansion drainage joint according to a first embodiment of the present invention, FIG. 2 is a lateral sectional view thereof, and FIG. 3 is a view taken along the line III-III of FIG. Therefore, the same or corresponding portions as those in FIG. 9 are designated by the same reference numerals and the duplicate description will be omitted. In the illustrated drainage joint 10 for deployment, a lateral connection port pipe portion 11 of the horizontal main pipe 9 is provided at an appropriate position on the peripheral wall of the joint body portion. The lateral connection port pipe portion 11 is formed at an eccentric position with respect to the axis as shown in FIG. 3 so as to swirl the inflowing and draining water from the horizontal main pipe 9 along the inner wall of the deploying drainage joint 10. Further, a connection port pipe portion 12 of the downstream side drainage vertical pipe 15 is provided at the lower end portion of the above-mentioned expansion drainage joint 10. Further, a return vent pipe connection port 13 is provided at the upper end of the expansion drainage joint 10. In the expansion drainage joint 10, the joint body is formed to have a diameter larger than the diameters of the horizontal main pipe 9 and the downstream drainage vertical pipe 15, and the taper is gradually tapered from the upper end of the joint body to the downstream side. The hopper shape is a funnel shape or a similar shape. And, in the upper part in the joint body of the drainage joint 10 for deployment,
Rectifier plate 1 for preventing jumping in a spiral shape along the inner peripheral surface thereof
4 are provided. This jump preventing flow regulating plate 14 prevents the drainage flowing from the horizontal main pipe 9 into the expansion drain joint 10 from colliding with the inner wall of the expansion drain joint 10 and jumping up. Incidentally, on the inner peripheral surface of the downstream side wall of the deployment drainage joint 10,
A spiral guide path may be provided for guiding and flowing down the inflowing and draining water from the horizontal main pipe 9 while swirling the swirling flow. FIG. 4 is a vertical sectional view of a two-layer deployment drainage joint 10 according to a second embodiment of the present invention, FIG. 5 is a transverse sectional view thereof, and FIG. 6 is a view taken along the line VI-VI of FIG. is there. The drainage joint 10 for deployment according to the second embodiment is an inner pipe 10
It has a two-layer pipe structure composed of A and the outer pipe 10B. The inner pipe 10A is provided with a lateral connection port pipe portion 11. Therefore, in the case of the second embodiment, a ventilation path is formed between the inner tube 10A and the outer tube 10B, and this ventilation path is open to the atmosphere through the ventilation tube. The rest of the configuration of the second embodiment is the same as that of the first embodiment. The expansion drainage joint 10 of the second embodiment is applied to the two-layer standing pipe system shown in FIG. The two-layer standing pipe system shown in FIG. 8 corresponds to the two-layer standing pipe system shown in FIG. 9, and the same or corresponding parts in these two systems will be denoted by the same reference numerals and duplicate description will be omitted. That is, the two-layer vertical pipe system shown in FIG. 8 has a two-layer pipe structure in which each of the drainage vertical pipe 1, each floor intermediate joint 3 and the downstream side drain vertical pipe 15 is composed of an inner pipe and an outer pipe, Since the ventilation path open to the atmosphere is formed between the inner and outer tubes, the ventilation tube 5 in FIG. 9 is unnecessary. In addition, the horizontal main pipe 9 and the horizontal main pipes 17 in the site in the two-layer vertical pipe system of FIG. 8 are single pipes. Therefore, in the expansion drainage joint 10 of the second embodiment shown in FIGS. 4 to 6, the lateral connection port pipe portion 11 of the single pipe connected to the body portion eccentric position of the inner pipe 10A thereof is used. The inner pipe of the downstream drainage vertical pipe 15 having the two-layer pipe structure in FIG. 8 is connected to the lower end connection port pipe portion 12 having the two-layer pipe structure of the inner and outer sides to which the horizontal main pipe 9 of FIG. 8 is connected. The outer tube is connected. FIG. 7 is a vertical cross-sectional view of a two-layer deployment drainage joint 10 according to the third embodiment of the present invention. The lateral connection pipe portion 11 of the expansion drainage joint 10 in the third embodiment has a two-layer pipe structure including an inner pipe 11a and an outer pipe 11b. Therefore, in the drainage system to which the deployment drainage joint 10 of the third embodiment is applied, the entire drainage system is configured as a two-layer pipe system, so that the horizontal main pipe 9 in FIG. The outer pipe 9b and the outer pipe 9b have a two-layer pipe structure, and the inner pipe 9a and the outer pipe 9b are connected to the inner pipe 11a and the outer pipe 11b of the lateral connection port pipe portion 11 of the expansion drainage joint 10 described above. The other structure of the third embodiment is the same as that of the first embodiment. Although the lateral connection port pipe portion 11 of the expansion drainage joint 10 according to the third embodiment has a two-layer pipe structure, the inner main pipe 11a is connected with the horizontal main pipe 9 made of a single pipe shown in FIG. The outer tube 11b may be opened to the atmosphere via a ventilation tube. Further, although the lower end connection port pipe portion 12 in the expansion drainage joint 10 of the second embodiment and the third embodiment also has a two-layer pipe structure, only the inner pipe 12a of the lower end connection pipe portion 12 thereof. The single-pipe downstream drainage vertical pipe 15 may be connected, and the outer pipe 12b may be opened to the atmosphere via a ventilation pipe.

【The invention's effect】

As described above, according to the drainage joint for expansion of the present invention, the vertical pipes for drainage of each floor extending to the multi-storey floors, the horizontal main pipes for horizontal deployment that receives the drainage pipes, and the drainage vertical pipes for the lowest floor are advected to the horizontal main pipes. By controlling the flow of drainage when
It is possible to solve the conventional problems in the ventilation system, simplify the complicated piping system, and thus simplify the construction. That is, the drainage that has flowed in from the tangential direction to the axial center of the deployment drain joint collides with the inner wall of the joint body at a deep angle and becomes a swirling flow along the inner wall of the joint body as it is, and the tapered shape of the joint body gradually increases. While the swirling flow is amplified by the downstream portion, the pipe wall flow is formed along the downstream drainage vertical pipe that receives the joint. The flow velocity of the wastewater forming the pipe wall flow is reduced due to its viscosity, which suppresses the jumping phenomenon and also produces a drainage noise and a drop impact, thereby providing a silent effect. Moreover, even if the flow direction is changed by the expansion piping part, a swirling flow forms a vent core in the vertical pipe system, the expansion system, and the horizontal main pipe system, so that smooth mutual flow can be maintained throughout the drainage system. , It is kept at about atmospheric pressure, and it is possible to prevent the sealing water from breaking down. Further, in particular, by the flow control plate for preventing jumping in the expansion drain joint, because the splash of the drainage flowing from the horizontal main pipe into the deployment drain joint and colliding with the joint body inner wall is suppressed,
It is possible to surely prevent the inflow connection port of the horizontal main pipe from being blocked, and quickly guide the inflow drainage in the joint body to the downstream side to abnormally raise the pipe pressure of each drainage system due to a large amount of drainage or detergent bubbles. With respect to the above, there is an effect that the pressure balance is maintained by supplying or exhausting air from the ventilation passage of the double-layer pipe structure through the ventilation pipe from the connection port for the return ventilation pipe in the upper part of the joint body.

[Brief description of drawings]

FIG. 1 is a sectional view showing a single pipe type expansion drainage joint according to a first embodiment of the present invention, FIG. 2 is a lateral sectional view thereof, and FIG. 3 is a view taken along the line III-III of FIG. 4 is a longitudinal sectional view of a drainage joint for deploying a two-layer pipe structure according to a second embodiment of the present invention, FIG. 5 is its transverse sectional view, and FIG. 6 is a view taken along the line VI-VI of FIG. FIG. 7 is a longitudinal sectional view showing a drainage joint for deploying a two-layer pipe structure according to a third embodiment of the present invention, and FIG. 8 is a piping configuration diagram of a two-layer vertical pipe system according to an embodiment of the present invention, and FIG. The figure is a piping configuration diagram of a conventional two-layer drainage system. In the figure, 1 is an upstream drainage pipe, 3 is an intermediate joint, 9 is a horizontal main pipe, 10 is a drainage joint for deployment, 13 is a return ventilation pipe connection port, 14 is a straightening plate, 15 is a downstream drainage pipe, 16 Is a leg joint on the lowest floor, and 17 is a horizontal main pipe on the site.

Claims (3)

[Claims] 1. A horizontal main pipe, which is connected to an upstream drainage vertical pipe of a drainage system of each floor spanning multiple floors through a leg joint and is horizontally expanded, is connected to a side surface of the joint barrel, and the joint barrel is also provided. In the drainage joint for deploying the drainage pipe that connects the downstream side drainage pipe to the lower end of the portion, this drainage joint for deployment allows the drainage from the horizontal main pipe to flow in from a tangential direction with respect to the axis thereof. While giving a swirl flow to the inflow and outflow, generate a pipe wall flow along the inner peripheral surface of the downstream drainage vertical pipe so that the connection port pipe part from the horizontal main pipe is eccentric to the axial center of the joint body part. In addition, the joint body is formed in a shape in which the diameter of the joint body is larger than the diameters of the lateral main pipe and the downstream drainage vertical pipe and the downstream side of the joint body is gradually tapered. Suppresses the inflow of drainage from the horizontal main pipe,
A rectifying plate for preventing jumping is provided for promptly guiding the inflow drainage to the downstream side without blocking the connection port pipe portion of the horizontal main pipe, and a large amount of drainage or detergent is provided on the upper end side of the joint body. A drainage joint for deployment, which is provided with a return vent pipe connection port for supplying or discharging air in response to fluctuations in the pipe internal pressure due to bubbles or the like. 2. The expansion drainage joint has a single pipe structure in which a horizontal main pipe for horizontal expansion is connected to a side surface of the joint body portion, and a return vent pipe connection port is provided at an upper end portion of the joint body portion. The drainage joint for deployment according to claim 1, characterized in that 3. A horizontal main pipe, which is connected to an upstream drainage vertical pipe of a drainage system of each floor extending to a multi-story floor through a leg joint and is horizontally expanded, is connected to a side surface of the joint barrel, and the joint barrel In the drainage joint for deployment of the drainage pipe that connects the downstream drainage vertical pipe to the lower end of the section, the deployment drainage joint includes the horizontal main pipe or the inner pipe of the horizontal main pipe, and the downstream drainage vertical pipe or the downstream drainage pipe. A joint inner pipe connecting the inner pipe of the standing pipe, an outer pipe of the lateral main pipe or the lateral main pipe, and an outer pipe of the downstream drainage standing pipe or the downstream drainage standing pipe, and the joint inner pipe And an outer joint pipe forming a ventilation path on the upstream side between the inner pipe and the inner pipe, the joint inner pipe is made to flow in the drainage from the horizontal main pipe in a tangential direction with respect to the axis of the joint. While giving a swirl flow to the drainage, generate a pipe wall flow along the inner peripheral surface of the downstream drainage vertical pipe. While forming the connection port pipe portion from the horizontal main pipe in an eccentric position with respect to the axial center of the peripheral wall, the peripheral wall of the horizontal main pipe or the inner pipe of the horizontal main pipe and the downstream drainage vertical pipe or the downstream drainage vertical pipe The diameter of the inner pipe is larger than that of the inner pipe, and the downstream side of the peripheral wall is formed in a gradually tapering shape, and the joint inner pipe has a peripheral wall in which the splash of inflow and drainage from the lateral main pipe is suppressed, A straightening plate for preventing jumping is provided for promptly guiding the inflow drainage to the downstream side without blocking the connection port pipe portion of the horizontal main pipe, and a large amount of drainage or detergent is provided on the upper end side of the joint outer pipe. A double-layer pipe type drainage joint for deployment, which is provided with a return ventilation pipe connection port for supplying or discharging air in response to fluctuations in the pipe internal pressure due to bubbles or the like.