JPH02142993A - Developing drain joint - Google Patents

Abstract

PURPOSE:To check any jumping phenomenon and level soundless effects as well as to make a sealing water breakdown in a trap preventable by forming a developing drain joint into a funnel form large in diameter, and installing a straightening vane for checking a drainage jump and an end connection for a return vent pipe in use for air supply or exhaust both in a joint. CONSTITUTION:In a proper spot on a peripheral wall of a developing drain joint 10, there is provided with a transverse end connection pipe part 11 of a horizontal main pipe 9, and this pipe part 11 is opened and formed in an eccentric position to a shaft center so as to make inflow drainage from the horizontal main pipe 9 swirl along an inner wall of the joint 10. Also, in a lower end of the joint 10, there is provided with an end connection pipe part 12 of a downstream side drain vertical pipe 15, and moreover an escape vent end connection 13 is installed in an upper end of the joint 10. Next, a barrel wall of the joint 10 is formed into being larger in diameter than each pipe diameter of the horizontal main pipe 9 and the vertical pipe 15, and the upper end is formed into an inverted funnel form and the lower end into a funnel form, respectively. In addition, in an upper part in the joint 10, there is provided with a spiral straightening vane 14 running along the inner wall, and this straightening vane 14 prevents such a possibility that the inflow drainage into the joint 10 from the horizontal main pipe 9 collides with the inner wall of the joint 10 and jumps up from occurring.

Description

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

The present invention relates to a deployable drainage joint for connecting a horizontally deployed horizontal main pipe and a standpipe from the horizontal main pipe 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-layer system consisting of a drainage standpipe, an attached ventilation standpipe, a relief ventilation pipe for the lid water pipe on each floor of a multi-story building, a circuit ventilation pipe, etc. Drainage systems, or simple fittings using special joints that fit into baffles, guides, rings, etc. to form ventilation holes in the drainage system from pipe wall flow, thereby maintaining mutual air communication throughout the drainage system. A pipe drainage system has been proposed. Figure 9 is a piping configuration diagram showing a conventional two-layer drainage system. , drainage horizontal branch pipes on each floor connected through borrowed intermediate joints 3 consisting of hend pipes, etc., 2a is a self-induction siphon connected to these drainage horizontal branch pipes 2, 9 is the above-mentioned drainage standpipe 1 10 is a drain joint for deployment connected to the downstream end of this horizontal main pipe 9, and the lower end of this drain joint for deployment IO 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. The downstream end of the on-site horizontal main pipe 17 is connected to a public sewer pipe (not shown) or to a drainage joint for the discharge end (not shown in FIG. 9). Reference numeral 5 designates a ventilation pipe 5 connected to appropriate locations of the drain standpipe 1, the expansion drain joint IO, and the downstream drain standpipe 15 to open the inside thereof to the atmosphere.

[Problem to be solved by the invention]

Drainage joint for deployment of intermediate joint 3 in conventional drainage piping system 10. In the drainage standpipe 1, the expansion drainage joint 10, and the joint that connects the downstream drainage standpipe 15 and the ventilation pipe 5, there is a possibility that the inflow in the right angle direction is blocked at section A in the drainage standpipe 1 shown in FIG. occurs, air suction phenomenon in the drainage horizontal branch pipe 2 occurs at section B, backflow phenomenon into the ventilation pipe at section 0, pipe blockage due to a water film adhering to the inner wall of the pipe at section D, and jumping phenomenon at section E. In addition, in the F part, when the wastewater flows from the side branch pipe 2 to the drainage standpipe l,
Turbulent flow due to the inflowing drainage colliding with the wall of the drainage standpipe 1 or coming into contact with the wall of the standpipe when falling down the drainage standpipe 1,
In addition, there was a problem with the shape of the joint, in that drainage noise and detergent foam were generated due to collisions between the drainage water and the bottom of the joint on the lowest floor. In addition, even in single-pipe drainage systems that use conventional special joints, special joints for standpipe systems have problems in part E mentioned above.
There is a risk that foreign matter may enter the drainage water from protrusions such as baffles, guides, rings, etc. and cause clogging, and furthermore, after the deployment system, a deployment drainage joint with a complicated piping structure similar to the two-layer drainage system is used. There was a problem that it had to be done. In the standpipe and deployment system of the existing drainage system as described above, the above-mentioned problems in parts A to E cause the internal pressure of the drainage system to rise abnormally and break the water seal of the trap attached to the sanitary appliance. This prevents the indoor environment from being destroyed by backflow of odors or the intrusion of pests, etc., by safely and promptly discharging wastewater out of the system by natural gravity, and by preventing the increase or decrease of air entering the discharge pipe in the ventilation system. However, there was a problem in that the function of supplying or draining air to protect the water seal of the drainage card and smoothing the flow of drainage was insufficient, and it was not able to fulfill its purpose. Furthermore, in high-rise apartment buildings, large amounts of wastewater fall very quickly, causing drainage noise due to collision sounds and falling impact, and abnormal rises in pipe pressure can cause bubbles contained in laundry wastewater to flow back. This is the cause of complaints and 1 hella pull. Furthermore, in the development of drainage systems, the ground floor (1st floor) or the floor directly above (2nd floor) is used for retail purposes, and it is very rare that they are used for residential floors, depending on the type of use of the building. Since the location of the shaft that houses the drainage system will be changed, the standpipes that span the multistory floors will also have to be expanded. Therefore, in the drainage system below the expanded part, problems arise in parts A to E above, and in both the two-layer type and single-pipe type, ventilation pipes are installed to maintain performance due to 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 problem is that the causes of parts A to E 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 deployable drainage joint that solves the various problems mentioned above.

[Means to solve the problem]

The deployable drainage joint of this invention is a piping system in which each existing drainage system is used as a joint for connecting a horizontally deployed horizontal main pipe and a drainage standpipe that receives it, using a T-shaped pipe, TY-shaped pipe, etc. On the other hand, the above-mentioned deployment method is designed to give a swirling flow to the wastewater flowing into the drainage standpipe from the horizontally deployed horizontal main pipe, and to generate a pipe wall flow along the inner wall of the downstream standpipe of the deployment drainage joint that receives this flow. The drainage joint has a large diameter and is formed into a substantially funnel shape, and the joint is designed to suppress the splashing of inflow wastewater from the horizontal main pipe that is horizontally deployed within the joint, and to prevent the inflow water from jumping up from the horizontal main pipe without blocking the inflow connection port of the horizontal main pipe. It is characterized by a configuration that is equipped with a rectifier plate to quickly guide inflowing wastewater to the downstream side, and a return vent pipe connection port that supplies and discharges air in response to fluctuations in the pressure inside the pipe due to large amounts of wastewater or detergent foam, etc. be.

[For use]

The deployable drainage joint according to the present invention has the above-mentioned configuration, and includes a drainage standpipe that receives drainage from each floor spanning multiple floors, a deployment horizontal main pipe that receives it, and a drainage pipe that receives drainage when advecting from the bottom floor vertical pipe to the horizontal main pipe. By controlling the flow of water, problems related to drainage and ventilation systems can be solved, and complicated piping systems can be simplified, thereby simplifying construction. In other words, the wastewater that flows in from a direction tangential to the axis of the joint collides with the inner wall of the joint at a deep angle, forming a swirling flow along the inner wall of the joint, and the funnel-shaped downstream section amplifies the swirling flow. while forming the pipe wall flow along the downstream inverted pipe receiving the fitting. The viscosity of the drainage water forming the pipe wall flow reduces the flow velocity, suppressing the jumping phenomenon, and reducing the generation of drainage noise and the impact of falling, resulting in a quiet effect. Furthermore, even if the flow direction changes depending on the deployed piping section, ventilation cores are formed in the vertical pipe system, expanded pipe system, and horizontal main pipe system due to swirling flow, making it possible to maintain smooth mutual circulation throughout the drainage system. , the pressure is maintained at approximately atmospheric pressure, which prevents the water seal from breaking down in the trap. In particular, the rectifying plate inside the joint suppresses the splashing of the wastewater that collides with the inner wall of the joint, reliably prevents the inflow connection port of the horizontal main pipe from being blocked, and quickly guides the water to the downstream side, allowing large volumes of water to be discharged. Alternatively, in case of an abnormal increase in the pressure inside the pipes of each drainage system due to detergent foam, etc., air is supplied or discharged from the two-layered ventilation path through the ventilation connection port at the top of the joint pipe, and the pressure is increased. Keep balance.

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a cross-sectional view showing a single-pipe expansion drain joint according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is a view taken along the The same or equivalent parts as in FIG. 9 are given the same reference numerals. In the illustrated expansion drain joint IO, a lateral connecting port pipe portion 11 of the lateral main pipe 9 is provided at an appropriate position on the peripheral wall thereof. This lateral connection port pipe portion 11 is formed to open at an eccentric position with respect to the axis as shown in FIG. 3 in order to cause the inflow water from the lateral main pipe 9 to swirl along the inner wall of the deployment drain joint IO. . Further, a connection port pipe portion 12 of the downstream side drainage standpipe 15 is provided at the lower end of the deployment drain joint IO. Furthermore, a vent pipe connection port 13 is provided at the upper end of the deployment drain joint 10. This deployment drain joint 10 has a trunk wall that is connected to the horizontal main pipe 9.
It is formed to have a diameter larger than that of the downstream side drainage standpipe 15, and its upper end is formed into a substantially inverted funnel shape, and its lower end is formed into a substantially funnel shape. A spiral rectifying plate 14 is provided at the upper part of the expansion drain joint 10 along the inner wall surface thereof. This rectifier plate 14 prevents the drainage flowing into the deployment drainage joint 10 from the horizontal main pipe 9 from colliding with the inner wall of the deployment drainage joint 10 and splashing up. 4 is a longitudinal cross-sectional view of a two-layer deployable drainage joint 10 according to a second embodiment of the present invention, FIG. 5 is a cross-sectional view thereof, and FIG. 6 is a view taken along the line V+-V+ in FIG. The deployment drain joint IO according to the second embodiment has a double pipe structure including an inner pipe 1OA and an outer pipe 10B, and the inner pipe 10A is provided with a horizontal connection port pipe portion 11. Therefore, in the case of this 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. Note that the other configurations of this second embodiment are the same as those of the first embodiment. The deployment drain joint 10 of the second embodiment is applied to a two-layer standpipe system shown in FIG. The two-layer standpipe system shown in FIG. 8 corresponds to the two-layer system shown in FIG. 9, and the same or equivalent parts in both systems will be designated by the same reference numerals and repeated explanation will be omitted. That is, the two-layer standpipe system shown in FIG. 8 has a two-layer pipe structure in which the drain standpipe 1, each borrowed intermediate joint 3, and the downstream drain standpipe 15 each consist of an inner pipe and an outer pipe. Since a ventilation path open to the atmosphere is formed between the inner and outer tubes, the ventilation tube 5 shown in FIG. 9 is unnecessary. Further, in the two-layer front standpipe system shown in FIG. 8, the horizontal main pipe 9 and the on-site horizontal main pipe 17 are single pipes. Therefore, in the deployable drain joint 10 of the second embodiment shown in FIGS. 4 to 6, the horizontal connecting port pipe portion 11 of the single pipe connected to the eccentric position of the body of the inner pipe 10A is The 8th horizontal main pipe 9 is connected to the lower end connection port pipe part 12 which has a two-layer pipe structure inside and outside, and the inner pipe of the downstream side drainage standpipe 15 which has a two-layer pipe structure as shown in FIG. The outer tube is connected. FIG. 7 is a dark blue cross-sectional view of a two-layer deployable drainage joint 10 according to a third embodiment of the present invention.
It has a two-layer tube structure consisting of a tube a and an outer tube 11b. Therefore, in a drainage system to which the deployment drain joint 10 of the third embodiment is applied, the horizontal main pipe 9 in FIG. 8 is made into a two-layer pipe structure consisting of an inner pipe 9a and an outer pipe 9b as shown in FIG. These inner tube 9a and outer tube 9b are the inner tube 11a and outer tube 11b of the horizontal connection port pipe section 11 of the deployment drain joint IO.
connected to. Note that the other configurations of this third embodiment are also the same as those of the first embodiment. On the other hand, the horizontal connection port pipe part 11 of the deployment drain joint 10 according to the third embodiment has a two-layer pipe structure, and the horizontal main pipe 9 made of a single pipe shown in FIG. 8 is connected to the inner pipe 11a. , the outer tube 11b may be open to the atmosphere. Further, the lower end connection port pipe portion 12 of the deployment drain joint 10 of the second and third embodiments also has a double-layer pipe structure, but only the inner pipe 12a of the lower end connection port pipe portion 12 has a single layer structure. The downstream side drainage standpipe 15 of the pipe may be connected, and the outer pipe 12b may be opened to the atmosphere.

【Effect of the invention】

As described above, according to the deployable drainage joint of the present invention, there is a standpipe that receives drainage water from each floor extending over the multistory floor, a deployable horizontal main pipe that receives the drainage water, and a horizontal main pipe that receives the drainage water, and when advection from the bottom floor vertical pipe to the horizontal main pipe. By controlling the flow of drainage water, conventional problems in drainage and ventilation systems can be solved, 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 deployable drainage joint collides with the inner wall of the joint at a deep angle and becomes a swirling flow along the inner wall of the joint, and the swirling flow is amplified by the funnel-shaped downstream part. while forming the pipe wall flow along the downstream inverted pipe receiving the fitting. The viscosity of the drainage water forming the pipe wall flow reduces the flow velocity, suppressing the jumping phenomenon, and reducing the generation of drainage noise and the impact of falling, resulting in a quiet effect. Furthermore, even if the flow direction changes depending on the deployed piping section, ventilation cores are formed in the vertical pipe system, expanded pipe system, and horizontal main pipe system due to swirling flow, making it possible to maintain smooth mutual circulation throughout the drainage system. , the pressure is maintained at approximately atmospheric pressure, which prevents the water seal from breaking down in the trap. In particular, the rectifying plate inside the deployment drainage joint prevents the splashing of the drainage water that collides with the inner wall of the joint, reliably prevents the inflow connection port of the deployment horizontal main pipe from clogging, and quickly directs it to the downstream side. In case of an abnormal increase in the pressure inside the pipes of each drainage system due to a large amount of wastewater or detergent foam, etc., supply or discharge air from the ventilation connection port at the top of the above-mentioned joint pipe through the ventilation pipe and the two-layered ventilation route. It has the effect of maintaining pressure balance.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a single-pipe deployment drainage joint according to the first embodiment of the present invention, the second is a cross-sectional view thereof, and FIG. 3 is a view taken along the line ■-■ in FIG. FIG. 4 is a longitudinal sectional view of a two-layer deployment drain joint according to a second embodiment of the present invention, FIG. 5 is a cross-sectional view thereof, and FIG. 6 is a view taken along the line Vl-VI in FIG. FIG. 7 is a vertical cross-sectional view of a two-layer deployment drain joint according to a third embodiment of the present invention, FIG. 8 is a piping configuration diagram of a two-layer standpipe system according to an embodiment of the present invention, and FIG. 9 is a diagram of a conventional pipe system. It is a piping configuration diagram of a two-layer drainage system. In the figure, 1 is a drainage standpipe, 3 is an intermediate joint, 9 is a horizontal main pipe, 1O is a drainage joint for expansion, 13 is a connection port for a return ventilation pipe,
14 is a rectifier plate, 15 is a downstream drainage standpipe, 16 is a bottom floor leg joint, and 17 is a horizontal main pipe within the site. Patent applicant: Nishihara Hygiene Industry Co., Ltd. Figure 1 Hi-15 Figure 3S Figure 4 Figure 6B Figure 5 8 fins

Claims (3)

[Claims] (1) A horizontal main pipe connected to the drainage standpipe of the drainage system on each floor spanning the multi-story floor via a leg joint and deployed horizontally, a deployment joint connected to this horizontal main pipe, the above-mentioned drainage standpipe, and the In a drainage joint for deployment of a drainage piping system in which a drainage standpipe is connected from the horizontal main pipe on the premises to a public sewer pipe, etc. via a leg joint on the lowest floor, this drainage joint for deployment is tangential to its axis. The horizontal main pipe is connected so that the waste water of the horizontally developed horizontal main pipe flows in from the direction, giving a swirling flow to the inflow waste water,
The deployment drainage joint is formed in a large diameter and approximately funnel shape so as to generate a pipe wall flow along the inner wall of the drainage standpipe on the downstream side of the deployment drainage joint that receives this. A rectifier plate for suppressing the splashing of the inflowing wastewater from the horizontal main pipe of the horizontal main pipe, and quickly guiding the inflowing wastewater to the downstream side without blocking the inflow connection port of the horizontal main pipe, and a large amount of wastewater or detergent foam, etc. A drain joint for deployment, characterized in that it is provided with a return ventilation pipe connection port for supplying and discharging air in response to fluctuations in the internal pressure of the pipe. (2) The deployment drainage joint has its body connected to the horizontal deployment, its lower end connected to the downstream drainage standpipe, and its upper end provided with the connection port for the return ventilation pipe. The deployable drainage joint according to claim 1, which has a single pipe configuration. (3) The above-mentioned deployment drainage joint is a joint inner pipe that connects the upstream inner pipe and the downstream inner pipe of the drainage standpipe, and the joint inner pipe that connects the upstream outer pipe and the downstream outer pipe of the drainage standpipe. It consists of a joint outer pipe that forms upstream and downstream ventilation paths with the joint inner pipe, and the joint inner pipe has an upstream joint opening to which the upstream inner pipe is connected and a downstream inner pipe. a main pipe portion formed with a peripheral wall having a larger diameter than each of the downstream joint openings to which the pipes are connected, and gradually tapering toward the downstream joint openings;
A branch pipe for connecting the horizontal main pipe for deployment is connected to the main pipe, and the branch pipe is connected to a tangent on the circumference of the main pipe in order to cause the wastewater to swirl in the main pipe by centrifugal force. A two-layer type drainage joint for deployment, characterized in that the horizontal drainage branch pipes are eccentrically connected at the intersection of the pipe cores.