CN201794128U

CN201794128U - Device for avoiding transverse drainage branch pipe at the lowest position of building from reflowing and spraying

Info

Publication number: CN201794128U
Application number: CN2010205476242U
Authority: CN
Inventors: 王冬梅
Original assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Current assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2010-09-29
Filing date: 2010-09-29
Publication date: 2011-04-13
Anticipated expiration: 2020-09-29

Abstract

The utility model discloses a device for avoiding a transverse drainage branch pipe at the lowest position of buildings from reflowing and spraying. The device comprises a drainage vertical pipe (1), a drainage transverse branch pipe (2) and a drainage pipe (3). A Y-shaped pipe (5) is arranged at the lower end of the drainage vertical pipe (1). The lower port of the Y-shaped pipe (5) is connected with the drainage pipe (3) through a drainage elbow (4), and the upper port of the Y-shaped pipe (5) is connected with a communicating pipe (6). The other end of the communicating pipe (6) is communicated with the drainage pipe (3). The device has the advantages of simple structure, convenience of construction, easiness of maintenance, low manufacturing cost, good using effect and capability of effectively avoiding harmful gas or sewage in a sewer pipe from polluting the environment.

Description

Prevent the device of the horizontal arm generation of building lowest part draining backflow splash

Technical field

The utility model relates to a kind of device that prevents the horizontal arm generation of building lowest part draining backflow splash, belongs to the construction drainage technical field.

Background technology

In the design of construction drainage, the draining of sanitary apparatus enters the horizontal arm of draining earlier, enters soil stack again, flows to discharge pipe at last and discharges outdoor.In the process of soil stack draining, current are vertical whereabouts and flow, drain discharge in the standpipe is ascending to be decreased to zero again, be interrupted non-uniform flow, in the process that vertically falls, form the compound movement of water and air two media, large amount of sewage enters the horizontal variation that can cause streamflow regime in the pipe that goes out in short time, whereabouts sewage is big at soil stack and discharge pipe junction kinetic energy, form highly big hydraulic jump, even can be full of whole section, formation is choked water, adding the former air that is stored between soil stack bottom and the discharge pipe can not flow freely, and pressure rises, and finally forms malleation, can cause the horizontal arm of draining of lowest part to produce splash or backflow when serious, cause pollution environment by sanitary apparatus or floor drain etc.

At present, prior art way commonly used is that the horizontal arm of the draining of lowest part is discharged separately, or between the horizontal arm of the draining of discharge pipe and lowest part, reserve sufficiently high space, when forming malleation with assurance, sanitary apparatus is unlikely to take place to reflux or the splash phenomenon on the horizontal arm of the draining of lowest part.The mode of in the prior art the horizontal arm of the draining of lowest part being discharged separately not only exists the problem that has increased gutter and increased the complexity of outdoor pipe network, but also has increased investment and maintenance cost.And between the horizontal arm of the draining of discharge pipe and lowest part, reserve the mode of enough high spatials, and not only can cause the absolute altitude of discharge pipe to reduce, but also can cause whole pipe network buried depth to increase, can increase problems such as investment and difficulty of construction simultaneously.Simultaneously, not enough if the spatial altitude between the horizontal arm of the draining of discharge pipe and lowest part is considered, still can cause to occur refluxing on the horizontal arm of draining of lowest part or phenomenons such as splash, thereby cause pollution environment.

Summary of the invention

The purpose of this utility model is: provide a kind of simple in structure, easy construction, cost is lower, result of use prevents the horizontal arm generation of building lowest part draining backflow splash preferably device, to overcome the deficiencies in the prior art.

The utility model is to constitute like this: a kind of device that prevents the horizontal arm generation of building lowest part draining backflow splash of the present utility model, comprise existing soil stack, the horizontal arm of draining and discharge pipe, lower end at soil stack is equipped with Y-piece, the lower port of Y-piece is connected with discharge pipe by drain elbow, be connected with cross over pipe on another upper port of Y-piece, the other end of cross over pipe is connected with discharge pipe and communicates.

Above-mentioned cross over pipe is interconnected by one 90 degree bend pipe and one 45 degree bend pipe and straight tube to be formed.

Owing to adopted technique scheme, the utility model can effectively prevent the formation of pipeline malleation by above-mentioned special construction drainage mode, thoroughly eliminates the possibility that backflow or splash phenomenon take place the horizontal arm of building lowest part draining, guarantees the unobstructed of current.The utility model can reduce the outlet opening of building effectively simultaneously, reduces the buried depth of pipeline, reduces the complexity of outdoor pipe network, and reduces cost and difficulty of construction.Therefore, the utility model compared with prior art, that the utility model not only has is simple in structure, easy construction, maintenance are easy to advantage, but also has that cost is low, result of use good, can effectively prevent the pernicious gas in the sewer pipe or the advantage of sewage pollution environment.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is existing building drain pipeline structure schematic diagram.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Embodiment of the present utility model: when implementing a kind of device that prevents the horizontal arm generation of building lowest part draining backflow splash of the present utility model, its structural representation as shown in Figure 1, its soil stack 1, horizontal arm 2 of draining and discharge pipe 3 are conventional device, and behind the horizontal arm 2 of the draining that installs lowest part in the usual way, a Y-piece 5 is installed in lower end at soil stack 1, Y-piece 5 can directly adopt the finished product of selling on the existing market, the lower port of Y-piece 5 is connected with discharge pipe 3 by drain elbow 4, drain elbow 4 is the 90 degree bend pipes of installing usually on the discharge pipe 3, on another upper port of Y-piece 5, connect a cross over pipe 6 then, and the other end of cross over pipe 6 is connected with the front end of discharge pipe 3 communicates.Cross over pipe 6 can be a curve bend; Or cross over pipe 6 is made into to be interconnected to form by one 90 degree bend pipe 6.1 and one 45 degree bend pipe 6.2 and 3 straight tubes 6.3 gets final product.

The utility model is connected with drain elbow 4 on the discharge pipe 3 by Y-piece 5 bottom with soil stack 1, between the front end of another upper port of Y-piece 5 and discharge pipe 3, be connected a cross over pipe 6 more then, so just can make when current fall in the soil stack 1, the front end that air in the water and former another upper port and the cross over pipe 6 of air by Y-piece 5 that is stored between soil stack 1 bottom and the discharge pipe 3 are discharged to discharge pipe 3, and be discharged to outdoor by discharge pipe 3 with the current of discharging subsequently, can avoid effectively and prevent in this way forming malleation in the pipeline between soil stack 1 and discharge pipe 3, thereby the phenomenon that backflow or splash take place on the horizontal arm 2 of the draining that prevents the building lowest part effectively produces, and guarantees the unobstructed of draining.

Claims

1. device that prevents the horizontal arm generation of building lowest part draining backflow splash, comprise soil stack (1), the horizontal arm of draining (2) and discharge pipe (3), it is characterized in that: Y-piece (5) is installed in the lower end of soil stack (1), the lower port of Y-piece (5) is connected with discharge pipe (3) by drain elbow (4), be connected with cross over pipe (6) on another upper port of Y-piece (5), the other end of cross over pipe (6) is connected with discharge pipe (3) and communicates.

2. the device that prevents the horizontal arm generation of building lowest part draining backflow splash according to claim 1 is characterized in that: cross over pipe (6) is spent bend pipe (6.2) and straight tube (6.3) by one 90 degree bend pipe (6.1) and one 45 and is interconnected and form.