JPH02147733A - Drain coupler for discharge end - Google Patents

Abstract

PURPOSE:To prevent the closure of the inflow connection port of a horizontal main pipe and quickly guide a drain to the downstream side by forming a coupler barrel section in a cylindrical shape with a large diameter so as to apply a whirling stream to the drain and providing a rectifying plate suppressing the bouncing of the inflow drain and guiding the drain to the discharge side. CONSTITUTION:A horizontal connection port pipe section 21 connected to a horizontal main pipe 17 is provided at the proper position on the periphery of a drain coupler 20 for a discharge end and opened and formed at the eccentric position with respect to the shaft center so that the inflow drain from the horizontal pipe 17 in a pot is whirled along the inner wall of the drain coupler 20. The diameter of the drain coupler 20 for a discharge end is made larger than that of the horizontal main pipe 17, it is formed in a covered circular pipe shape opened at the lower end, and a connection port 22 for a relief vent pipe is provided at its upper end. A spiral rectifying plate 23 along the inner wall face is provided at the upper section of the coupler 20, and the drain flowing into the drain coupler 20 from the horizontal main pipe 17 is prevented from colliding with the inner wall of the coupler 20 and bouncing. The pressure balance can be maintained by discharging the air from a vent passage against the abnormal pressure rise in the pipe.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a drainage joint for the discharge end for connecting horizontal main pipes in drainage system piping for high-rise housing complexes such as apartments and buildings for other purposes.

[Conventional technology]

The conventional drainage piping system is a two-pipe drainage system consisting of a drainage standpipe, an attached ventilation standpipe, a drainage side branch pipe on each floor of a multi-story building, a relief ventilation pipe, a circuit ventilation pipe, etc. A single-pipe system using special joints that create a ventilation hole from the pipe wall flow into the drainage system using baffles, guides, rings, etc., thereby maintaining mutual air communication throughout the drainage system. drainage system has been proposed. Figure 9 is a piping configuration diagram showing a conventional two-pipe drainage system. In the figure, 1 is a drainage standpipe shared by each floor in a multi-story building, 2 is a T-shaped pipe connected to this drainage standpipe l, and a TY-shaped pipe. , drainage horizontal branch pipes on each floor connected through borrowed intermediate joints 3 consisting of vent pipes, etc., 2a is a self-induction siphon connected to these drainage horizontal branch pipes 2, 9 is the above-mentioned drainage standpipe 1 A horizontally deployable horizontal main pipe connected to the lowermost end of the horizontal main pipe 9 via an intermediate leg joint 4, IO is a deployable drainage joint connected to the downstream end of this horizontal main pipe 9, and the lower end of this deployable drainage joint 10 A downstream side drainage standpipe 15 is connected to the downstream side drainage standpipe 15, and an in-site horizontal main pipe 17 is connected to the lower end of the downstream side drainage standpipe 15 via a leg joint 16 on the lowest floor. A drainage joint 20 for the discharge end is connected to the downstream end of the on-site horizontal main pipe 17. This drainage joint 20 for the drain end moves the horizontally inflowing drainage water from the horizontal main pipe 17 in the premises in the vertical direction toward the drainage tank T side, and discharges it into the drainage tank T. Reference numeral 5 designates ventilation pipes which are connected to appropriate locations of the drainage standpipe 1, the expansion drain joint 10, and the downstream drainage standpipe 15 and are opened to the atmosphere.

[Problem to be solved by the invention]

However, in the horizontal main pipe system of the conventional two-pipe drainage piping system described above, a right-angled inflow pipe blockage occurs in section A in Fig. 9, a jullumping phenomenon occurs in section B, and in addition to this, in section C When drainage water flows into the drainage joint 20 for the discharge end from the horizontal main pipe 17 on the premises, when the inflow drainage collides with the inner wall of the drainage joint 20 for the discharge end or falls within the drainage joint 20 for the discharge end, the joint Turbulent flow due to contact with the inner wall and drainage noise caused by collision of drainage water with each other occur.In addition, these drainage flows block the ventilation routes, E and F, and as a result, the pressure inside the pipe becomes abnormal. There were problems such as raising the temperature. In the horizontal main pipes of existing drainage systems, the above-mentioned problems can cause the internal pressure of the drainage system to rise abnormally, breaking the water seal of the traps attached to sanitary appliances, causing backflow of odors, ingress of pests, etc. Inviting people to destroy the indoor environment, etc.
Drainage is safely and quickly discharged out of the system by natural gravity.In the ventilation system, air is supplied or drained to respond to the increase or decrease of air entering the discharge pipe to prevent water from sealing in the drain trap. The problem was that the function to smooth the flow of information was insufficient, and it was not able to fulfill its purpose. Furthermore, in high-rise housing complexes, a large amount of laundry wastewater causes an abnormal increase in the pressure inside the pipes and a backflow of foam contained in the laundry wastewater, causing complaints and troubles. Therefore, problems such as those mentioned above occur in horizontal main pipe drainage systems, and in both double-pipe and single-pipe drainage systems,
A complex piping system with ventilation pipes is used to maintain performance. However, even with such a complicated piping system, the problem cannot be solved, and the problem is that the causes of parts A to F above affect the stacked pipes, reducing the performance of the entire drainage system. There was a point. The object of the present invention is to provide a drainage joint for the discharge end that solves the various problems mentioned above.

[Means to solve the problem]

The discharge end drainage joint of the present invention can be used as a connection joint for vertically transferring and discharging horizontal drainage water flowing in from horizontal main pipes in existing drainage systems, such as T-shaped pipes and TV-shaped pipes. In contrast to the piping system in which the pipe is connected with a horizontal main pipe, the joint body is formed into a cylindrical shape with a large diameter so as to give a swirling flow to the wastewater discharged from the horizontal main pipe into the drainage tank. The inside of the unit is characterized by a rectifying plate that suppresses the splashing of the inflowing wastewater from the horizontal main pipe and quickly guides the inflowing wastewater to the discharge side without blocking the inflow connection port of the horizontal main pipe. It is.

[For use]

The drainage joint for the discharge end of the present invention has the above-mentioned configuration, and has a drainage standpipe that takes charge of drainage from each floor spanning multiple floors, an expanded horizontal main pipe that receives it, and a drain joint for advection and release from the lowest floor drainage standpipe to the horizontal main pipe. By controlling the flow of drainage water, problems related to drainage and ventilation systems can be resolved, and complicated piping systems can be simplified, thereby simplifying construction. In other words, the waste water that flows in from a direction tangential to the axis of the discharge end layer drainage joint collides with the inner wall of the joint pipe at a deep angle, becomes a swirling flow along the inner wall of the discharge end drainage joint, and is discharged by the cylindrical downstream part. While amplifying the swirling flow, the pipe wall flow is formed within the drainage joint for the discharge end. The viscosity of the waste water that forms the pipe wall flow reduces the flow velocity, suppressing the jumping phenomenon, and reducing impact, resulting in a quiet effect. Furthermore, even if the flow direction is changed using the discharge end layer drainage joint, ventilation cores are formed in the vertical pipe system, expansion system, and horizontal main pipe system due to swirling flow, so smooth interconnection is maintained throughout the drainage system. The pressure can be maintained at approximately atmospheric pressure, and the water seal of the trap can be prevented from breaking. In particular, by the rectifying plate in the drainage joint for the discharge end,
It suppresses the splashing of the waste water that collides with the inner wall of the joint pipe, reliably prevents the blockage of the inflow connection port of the horizontal main pipe, and quickly guides it to the downstream side. In case of abnormal pressure increase, air is supplied or discharged from the two-layered ventilation path through the ventilation connection port at the upper part of the joint pipe to maintain the pressure balance.

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a longitudinal sectional side view showing a single-pipe discharge end layer drainage joint according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional front view thereof.
FIG. 3 is a view taken along the line ■--■ in FIG. 1, and the same or corresponding parts as in FIG. 9 are denoted by the same reference numerals, and redundant explanation will be omitted. In the illustrated discharge end layer drainage joint 20, a horizontal connection port pipe portion 21 to which the in-site horizontal main pipe 17 is connected is provided at an appropriate position on the peripheral wall thereof. This horizontal connection port pipe section 21 has an opening formed at an eccentric position with respect to the axis as shown in FIG. has been done. The water-hailing joint 20 for the discharge end has a joint body formed in the shape of a covered cylinder with a diameter larger than that of the horizontal main pipe 17 within the premises and with an open lower end. Further, a connection port 22 for a relief vent pipe is provided at the upper end of the discharge end layer drainage joint 20. A spiral rectifier plate 23 is provided at the upper part of the discharge end drain joint 20 along the inner wall surface thereof. This rectifying plate 23 prevents the drainage flowing into the discharge end drainage joint 20 from the site horizontal main pipe 17 from colliding with the inner wall of the discharge end layer drainage joint 20 and splashing up. FIG. 4 is a longitudinal sectional side view of a two-pipe discharge end drainage joint according to a second embodiment of the present invention, FIG. 5 is a longitudinal sectional front view thereof, and FIG. 6 is a view taken along the line VT-Vl in FIG. The discharge end layer drainage joint 2o according to the second embodiment has a double pipe structure consisting of a joint inner pipe 2OA and a joint outer pipe 20B, and a horizontal connection port pipe portion 21 is provided in the joint inner pipe 20A. It is being Therefore, in the case of the second embodiment, a ventilation path is formed between the inner joint tube 20A and the outer joint tube 20B, and this ventilation path is open to the atmosphere. Here, in order to prevent the ventilation path between the joint inner pipe 2OA and the joint outer pipe 20B from being blocked by the "swirling opening flow" of the wastewater discharged from the lower end of the joint inner pipe 20A,
The outer joint pipe 20B is formed to be shorter than the inner joint pipe 20A by a dimension. Note that the other configurations of this second embodiment are the same as those of the first embodiment. Such a discharge end layer drainage joint 20 is commonly used in a two-layer standpipe system shown in FIG. The two-layer standpipe system shown in FIG. 8 corresponds to the two-pipe system shown in FIG. 9, and the same or equivalent parts in both systems are designated by the same reference numerals and redundant explanation will be omitted. That is, the two-layer standpipe system shown in FIG. 8 has a two-layer pipe structure in which each of the drainage standpipe 1, the intermediate joint 3 for each floor, and the downstream drainage standpipe 15 consists of an inner pipe and an outer pipe. The inner and outer tubes form a ventilation path open to the atmosphere. Therefore, the ventilation pipe 5 shown in FIG. 9 is unnecessary. Further, the in-site horizontal main pipe 17 in the two-layer standpipe system shown in FIG. 8 is made of a single pipe. Therefore, the discharge end layer drainage joint 20 of the second embodiment shown in Figs. The above-mentioned on-site horizontal main pipe 17 shown in Figure 8 is connected. FIG. 7 is a longitudinal cross-sectional view of a two-layer discharge end-side drainage joint 20 according to a third embodiment of the present invention. It has a two-layer tube structure consisting of an outer tube 21a and an outer tube 21b. Therefore, in a drainage system to which the discharge end layer drainage joint 20 of the third embodiment is applied, the in-site horizontal main pipe 1 in FIG.
As shown in FIG. 7, the tube 7 has a two-layer tube structure including an inner tube 17a and an outer tube 17b, and is connected to the inner tube 17a and the outer tube 17b. Note that the other configurations of this third embodiment are also the same as those of the first embodiment. Further, the horizontal connection port pipe section 21 of the discharge end layer drainage joint 20 of the third embodiment has a two-layer pipe structure, but the internal horizontal main pipe 17 consisting of a single pipe in Fig. 8 is connected to the inner pipe 21a. The outer tube 21b may be opened to the atmosphere. Furthermore, although the lower end of the discharge end layer drainage joint 20 in each of the above embodiments is open, a discharge pipe is connected to the lower end, and the waste water is discharged into the drain tank T through this discharge pipe. Good too.

【Effect of the invention】

As described above, according to the discharge end layer drainage joint of the present invention,
By controlling the flow of wastewater from the standpipe that handles drainage on each floor across multi-story floors, the expanded horizontal main pipe that receives it, and the flow of wastewater when it is advected and released from the bottom floor standpipe to the horizontal main pipe, the drainage system and ventilation system are improved. Not only can the problems of the conventional method be solved, but also the complicated piping system can be simplified, thereby simplifying the construction process. In other words, the wastewater that flows in from a direction tangential to the axis of the body of the discharge end layer drainage joint 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 flows downstream in the cylindrical shape. A pipe wall flow is formed within the joint body while amplifying the swirling flow. The viscosity of the waste water that forms the pipe wall flow reduces the flow velocity, suppressing the jumping phenomenon, and reducing impact, resulting in a quiet effect. Furthermore, even if the flow direction is changed using the discharge end layer drainage joint, ventilation cores are formed in the vertical pipe system, expansion system, and horizontal main pipe system due to swirling flow, so smooth interconnection is maintained throughout the drainage system. The pressure can be maintained at approximately atmospheric pressure, and the water seal of the trap can be prevented from breaking. In particular, by the rectifying plate in the drainage joint for the discharge end,
It suppresses the splashing of the wastewater that collides with the inner wall of the above-mentioned discharge end layer drainage joint, reliably prevents the blockage of the inflow connection port of the horizontal main pipe, and promptly guides the wastewater to the downstream side. In case of an abnormal increase in the pressure inside the system pipes, the pressure balance can be maintained by supplying or discharging air from the two-layered ventilation path through the ventilation connection port on the upper part of the above-mentioned discharge end layer drainage joint and through the ventilation pipe. There is an effect.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing a single-pipe discharge end pipe and water joint according to a first embodiment of the present invention, FIG. 2 is a longitudinal sectional front view thereof, and FIG. 3 is a line shown in FIG. 4 is a longitudinal sectional side view of a two-pipe discharge joint according to a second embodiment of the present invention, FIG. 5 is a longitudinal sectional front view thereof, and FIG.
FIG. 7 is a vertical cross-sectional side view of a two-pipe discharge end drainage joint according to a third embodiment of the present invention, and FIG. 8 is a diagram of the piping of a two-layer standpipe drainage system according to an embodiment of the present invention. Diagram,
FIG. 9 is a piping configuration diagram of a conventional two-pipe drainage system. In the figure, 1 is a drainage standpipe, 17 is a horizontal main pipe within the premises (horizontal main pipe), 20 is a discharge end layer drainage joint, 2OA is a pipe inside the joint, 2
0B is a joint outer pipe, 21 is a horizontal connection port pipe section, 23 is a rectifying plate, and T is a drainage tank. 4th decoy 6th cause 7th figure

Claims (3)

[Claims] (1) A horizontal main pipe is connected via leg joints to the drainage standpipe that handles drainage from each floor across the multi-story floor, and is attached to the discharge end of the horizontal main pipe to drain water from the basement floors of buildings, etc. In a drainage joint for the discharge end of a drainage piping system that transfers and discharges the above-mentioned wastewater into the tank, the drainage of the horizontally developed horizontal main pipe flows into this joint for the discharge end from a direction tangential to its axis. When the horizontal main pipe is connected so as to give a swirling flow to the inflowing drainage water, and the drainage water from the horizontal main pipe moves from the horizontal direction to the vertical direction along the inner wall of the drainage joint for the discharge end,
The discharge end drain joint is formed in a cylindrical shape with a large diameter so as to form a mutual flow of air between it and the horizontal main pipe,
This discharge end drainage joint suppresses the splashing of the drainage water that flows in from the horizontal main pipe and collides with the inner wall of the joint, and promptly guides the inflow drainage water to the vertical downstream side without blocking the inflow connection port of the horizontal main pipe. A drainage joint for a discharge end, characterized by being provided with a rectifying plate for (2) Claim 1, wherein the drainage joint for the discharge end has a horizontal connection port pipe part in the body of the joint, and has a single-pipe structure with a lower end open toward the interior of the drainage tank. Drainage fitting for the discharge end as described. (3) The drainage joint for the discharge end has a two-layer structure comprising an inner joint pipe and an outer joint pipe that form a ventilation path between the horizontal main pipe and the open end. Drainage joint for the discharge end according to 2.