CN102433916B

CN102433916B - Method and device for preventing backflow splashing of transverse draining branch pipe located at lowest position of building

Info

Publication number: CN102433916B
Application number: CN201010296385.2A
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: 2014-10-22
Anticipated expiration: 2030-09-29
Also published as: CN102433916A

Abstract

The invention discloses a method and a device for preventing backflow splashing of a transverse draining branch pipe located at the lowest position of a building. The method and the device are characterized in that the lowest end of a draining stand pipe is connected to a draining bend pipe of a discharge pipe through a Y-shaped pipe and a communication pipe is connected between another upper end opening of the Y-shaped pipe and a front end of the discharge pipe, so that when water in the draining stand pipe flows downward, air in the water and air originally existing between the bottom of the draining stand pipe and the discharge pipe are discharged into the front end of the discharge pipe through the communication pipe and the another upper end opening of the Y-shaped pipe and then are discharged to an outdoor space by the discharge pipe with the water discharged after. Through the method and the device, it is effectively avoided that because positive pressure is formed in the pipes located between the draining stand pipe and the discharge pipe, the phenomenon that a backflow splashing of the transverse draining branch pipe located at the lowest position of a building is caused, and thus unobstructed draining is guaranteed. The device has the advantages of simple structure, convenience of construction, easiness of maintenance, low cost, good use effects and excellent function of effectively preventing environmental pollution caused by harmful gas or sewage in a sewer pipe.

Description

Prevent method and the device of building backflow splashing of transverse draining branch pipe located at lowest position

Technical field

The present invention relates to a kind of method and device that prevents building backflow splashing of transverse draining branch pipe located at lowest position, belong to construction drainage technical field.

Background technology

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

At present, the conventional way of prior art is that the transverse drainage branch pipe of lowest part is discharged separately, or reserve sufficiently high space between discharge pipe and the transverse drainage branch pipe of lowest part, when ensureing to form malleation, on the transverse drainage branch pipe of lowest part, sanitary apparatus is unlikely to occur to reflux or splash phenomenon.The mode of in prior art, the transverse drainage branch pipe of lowest part being discharged separately not only exists the problem that has increased gutter and increased the complexity of tube net outside, but also has increased investment and maintenance cost.And between discharge pipe and the transverse drainage branch pipe of 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 the problems such as investment and difficulty of construction simultaneously.Meanwhile, not enough if the spatial altitude between discharge pipe and the transverse drainage branch pipe of lowest part is considered, still can cause and on the transverse drainage branch pipe of lowest part, occur refluxing or the phenomenon such as splash, thereby cause the pollution to environment.

Summary of the invention

The object of the invention is: provide a kind of simple in structure, easy construction, cost is lower, result of use prevents building backflow splashing of transverse draining branch pipe located at lowest position preferably method and device, to overcome the deficiencies in the prior art.

The present invention is achieved in that a kind of method that prevents building backflow splashing of transverse draining branch pipe located at lowest position of the present invention is being connected with the drain elbow on discharge pipe by a Y-piece bottom soil stack, then between another upper port of Y-piece and the front end of discharge pipe, be connected again a cross over pipe, while making in soil stack that current fall, air in water and the former front end that is stored in another upper port by Y-piece of air between soil stack bottom and discharge pipe and cross over pipe and is discharged to discharge pipe, and outdoor by being discharged to together with discharge pipe with the current of discharging subsequently, can effectively avoid and prevent like this forming malleation in the pipeline between soil stack and discharge pipe and make to occur on the transverse drainage branch pipe of building lowest part the phenomenon of backflow splash, thereby ensure the unobstructed of draining.

For a kind of device that prevents building backflow splashing of transverse draining branch pipe located at lowest position of the inventive method, comprise existing soil stack, transverse drainage branch pipe and discharge pipe, lower end at soil stack is provided with Y-piece, the lower port of Y-piece is connected with discharge pipe by drain elbow, in another upper port of Y-piece, be connected with cross over pipe, the other end of cross over pipe is connected and communicates with discharge pipe.

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

Owing to having adopted technique scheme, the present invention, by above-mentioned special construction drainage mode, can effectively prevent the formation of pipeline malleation, thoroughly eliminates the possibility of building lowest part transverse drainage branch pipe generation backflow or splash phenomenon, guarantees the unobstructed of current.The present invention simultaneously can reduce the outlet opening of building effectively, reduces the buried depth of pipeline, reduces the complexity of tube net outside, and reduces costs and difficulty of construction.Therefore, compared with prior art, that the present invention not only has is simple in structure, easy construction, maintenance are easy to advantage in the present invention, but also has advantages of that cost is low, result of use good, can effectively prevent pernicious gas or sewage pollution environment in sewer pipe.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

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

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further illustrated.

Embodiments of the invention: in the time carrying out the drainage construction of building, for the processing of the transverse drainage branch pipe of its lowest part, adopt a kind of method that prevents building backflow splashing of transverse draining branch pipe located at lowest position of the present invention to process, by being connected with the drain elbow 4 on discharge pipe 3 by a Y-piece 5 bottom of soil stack 1, then between another upper port of Y-piece 5 and the front end of discharge pipe 3, be connected again a cross over pipe 6, so just can make in soil stack 1 that current fall time, air in water and the former front end that is stored in another upper port by Y-piece 5 of air between soil stack 1 bottom and discharge pipe 3 and cross over pipe 6 and is discharged to discharge pipe 3, and outdoor by being discharged to together with discharge pipe 3 with the current of discharging subsequently, can effectively avoid and prevent in this way forming malleation in the pipeline between soil stack 1 and discharge pipe 3, thereby effectively prevent from occurring to reflux on the transverse drainage branch pipe 2 of building lowest part or the phenomenon of splash produces, ensure the unobstructed of draining.

While implementing a kind of device that prevents building backflow splashing of transverse draining branch pipe located at lowest position of the present invention, its soil stack 1, transverse drainage branch pipe 2 and discharge pipe 3 are existing device, and install in the usual way after the transverse drainage branch pipe 2 of lowest part, 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 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 conventionally installing on discharge pipe 3, then in another upper port of Y-piece 5, connect a cross over pipe 6, 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 by one 90 degree bend pipe 6.1 and 6.2 and 3 straight tubes 6.3 of one 45 degree bend pipe and interconnects and form.

Claims

1. one kind prevents the method for building backflow splashing of transverse draining branch pipe located at lowest position, it is characterized in that: by being connected with the drain elbow (4) on discharge pipe (3) by a Y-piece (5) bottom of soil stack (1), then between another upper port of Y-piece (5) and the front end of discharge pipe (3), be connected again a cross over pipe (6), when the middle current of soil stack (1) are fallen, air in water and the former front end that is stored in another upper port by Y-piece (5) of air between soil stack (1) bottom and discharge pipe (3) and cross over pipe (6) and is discharged to discharge pipe (3), and outdoor by being discharged to together with discharge pipe (3) with the current of discharging subsequently, can effectively avoid and prevent like this forming malleation in the pipeline between soil stack (1) and discharge pipe (3) and make the upper phenomenon that backflow splash occurs of transverse drainage branch pipe (2) of building lowest part, thereby ensure the unobstructed of draining.

2. one kind prevents the device of building backflow splashing of transverse draining branch pipe located at lowest position, comprise soil stack (1), transverse drainage branch pipe (2) and discharge pipe (3), it is characterized in that: in the lower end of soil stack (1), Y-piece (5) is installed, the lower port of Y-piece (5) is connected with discharge pipe (3) by drain elbow (4), in another upper port of Y-piece (5), be connected with cross over pipe (6), the other end of cross over pipe (6) is connected and communicates with discharge pipe (3), described cross over pipe (6) spends bend pipe (6.2) by one 90 degree bend pipe (6.1) and one 45 and straight tube (6.3) interconnects and forms.