CN111648444A

CN111648444A - Building drainage system

Info

Publication number: CN111648444A
Application number: CN202010667822.0A
Authority: CN
Inventors: 周克钊; 赵浩迪; 祝年虎; 李雨阳
Original assignee: Southwest Municipal Engineering Design and Research Institute of China
Current assignee: Southwest Municipal Engineering Design and Research Institute of China
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-09-11

Abstract

The invention relates to the technical field of building drainage, and particularly discloses a building drainage system which comprises a drainage vertical pipe, a connecting pipe and a ventilation vertical pipe, wherein the ventilation vertical pipe is arranged in parallel with the drainage vertical pipe and is mutually connected through the connecting pipe, and negative pressure is constantly maintained in the building drainage system. Compared with the prior art, the invention can effectively avoid odor from overflowing under the condition of no matter whether the water seal is good or bad.

Description

Building drainage system

Technical Field

The invention relates to the technical field of building drainage, in particular to a building drainage system.

Background

The water seal of the indoor drainage outlet is the only barrier for isolating the harmful gas in the drainage system of the building from overflowing.

Until now, all building drainage systems are always in a normal pressure state, and short-time pressure fluctuation (when piston flow occurs in a drainage vertical pipe, the upper part of the drainage vertical pipe is negative pressure, and the lower part of the drainage vertical pipe is positive pressure) can be formed in the drainage process, so that the water seal of an indoor drainage outlet is damaged, and then harmful gas in a drainage pipe is caused to overflow into a room under the condition of no water seal.

In order to avoid the accidents, the top ends of the vertical drainage pipes of the domestic drainage pipelines in the buildings are provided with vent pipes, and special vent pipes and auxiliary vent pipes are arranged to eliminate short-time pressure fluctuation. However, even in this case, since the water seal of the indoor drainage outlet is quite fragile and easily damaged, harmful gas in the building drainage system still sometimes overflows into the room, which not only affects the hygiene and the appearance, but also is not favorable for epidemic prevention.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a building drainage system.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the building drainage system comprises a drainage vertical pipe connected with the indoor drainage system, a connecting pipe and a ventilation vertical pipe arranged in parallel with the drainage vertical pipe; the top ends of the drainage vertical pipe and the ventilation vertical pipe are provided with ventilators; so that a negative pressure is constantly maintained inside the building drainage system. 1. The building drainage system comprises a drainage vertical pipe, a connecting pipe and a ventilation vertical pipe arranged in parallel with the drainage vertical pipe, wherein negative pressure is constantly maintained in the building drainage system.

Through the arrangement, harmful gas in the building drainage system is timely, actively and effectively discharged, so that the harmful gas in the building drainage system is thoroughly prevented from overflowing into a room and does not depend on fragile water seal separation; the building drainage system maintains lower constant negative pressure, thereby being beneficial to reducing energy consumption and lowering operation cost.

Preferably, a ventilator is installed at the top end of the drainage stand pipe and the ventilation stand pipe.

Preferably, the side wall of the drainage stand pipe and the side wall of the ventilation stand pipe are connected with each other through a connecting pipe; wherein the connection pipe is inclined toward the drain pipe side.

Preferably, the connecting pipe comprises a connecting pipe A connected with the side wall of the vertical drainage pipe and a connecting pipe B connected with the connecting pipe A; the central axes of the connecting pipe A and the connecting pipe B are on the same straight line.

Preferably, the problem of water leakage from the joint when water in the drainage stand pipe enters the vent pipe from the connecting pipe in the using process is avoided, and the phenomenon of air leakage from the joint in the using process is avoided; the side, close to the connecting pipe B, of the connecting pipe A is provided with a connector A, the side, close to the connecting pipe A, of the connecting pipe B is provided with a connector B, and the connector A is connected with the connector B through a bolt; the one end that the A connecting pipe was kept away from to the A connector is provided with the A boss one side that the B connector is close to the A connector is provided with the B recess that uses with the cooperation of A boss.

Preferably, the boss A is a circular boss, and the circle center of the circular boss is on the same straight line with the central axis of the connecting pipe A; the B groove is a circular groove matched with the circular boss.

Preferably, the connecting pipe A comprises a pipe body A and a connecting end A arranged on the outer side of the pipe body A; the B connecting pipe comprises a B pipe body sleeved on the inner side of the A pipe body and a B connecting end connected with the A connecting end.

Preferably, in order to facilitate installation and avoid the need for adjusting the angle and direction during installation, a guide block is arranged on the outer side of the tube body B along the longitudinal direction of the tube body B, and a guide groove matched with the guide block is arranged on the inner side of the tube body a.

Preferably, in order to make the installation more convenient and can guide effectively; the quantity of guide block is a plurality of and evenly sets up along the circumference of B body, the same and the one-to-one setting of quantity of guide way.

Compared with the prior art, the invention has the beneficial effects that:

the sewage in the vertical drainage pipe can be effectively ensured to enter the vent pipe through the inclined arrangement of the connecting pipe;

according to the invention, the air pump is arranged at the top ends of the drainage vertical pipe and the vent pipe, so that constant weak negative pressure can be maintained in the drainage vertical pipe and the vent vertical pipe, harmful gas in a building drainage system is actively discharged, and the phenomenon that the harmful gas overflows indoors is thoroughly avoided;

the invention has simple structure and strong practicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the present invention in connection with an indoor drainage system;

FIG. 2 is a schematic structural view of the connection between the circular boss and the circular groove in the present invention;

FIG. 3 is a schematic structural view of the connecting tube A in example 3 of the present invention;

FIG. 4 is a schematic structural view of a connecting tube B in example 4 of the present invention;

description of the main elements

1. A vertical drainage pipe; 2. a vent riser; 3. a connecting pipe; 31. a, connecting a pipe; 311. (ii) a A, a boss; 312. a guide groove; 32. b, connecting a pipe; 321. b, a pipe body; 3211. a guide block; 4. an air extractor; 5. an indoor drainage system.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Also, in the description of the present invention, the terms "first", "second", and the like are used for distinguishing between descriptions and not necessarily for describing a relative importance or implying any actual relationship or order between such entities or operations.

Example 1:

the invention is realized by the following technical scheme, as shown in figures 1-4, a building drainage system for constantly maintaining negative pressure comprises a drainage vertical pipe 1 connected with an indoor drainage system 5, a connecting pipe 3 and an aeration vertical pipe 2 arranged in parallel with the drainage vertical pipe 1; and ventilators are arranged at the top ends of the drainage vertical pipe 1 and the ventilation vertical pipe 2.

Through the arrangement, harmful gas in the building drainage system can be effectively and actively discharged in time without relying on the weak water seal separation; the building drainage system is kept at constant negative pressure, and harmful gas in the building drainage system is thoroughly prevented from overflowing to the indoor; is beneficial to reducing energy consumption and operation cost. It should be noted that, through the above improvement, when the air pump 4 works, the drainage vertical pipe 1 and the ventilation vertical pipe 2 maintain a constant weak negative pressure, and the ventilation vertical pipe 2 actively exhausts the harmful gas in the drainage system of the building, thereby completely avoiding overflowing into the room.

Preferably, in order to prevent water in the drainage stand pipe 1 from entering the aeration stand pipe 2, the side wall of the drainage stand pipe 1 and the side wall of the aeration stand pipe 2 are connected with each other through a connecting pipe 3; wherein, the connecting pipe 3 inclines to one side of the drain pipe;

compared with the prior art, the invention can effectively avoid the situation that odor cannot overflow no matter the water seal is good or bad.

Preferably, as shown in FIG. 1, the connecting pipe 3 forms an included angle a with the vertical drainage pipe 11, wherein 60 degrees ≧ a ≧ 45 degrees.

Example 2:

this embodiment is further optimized on the basis of the above embodiment 1, as shown in fig. 1-4, the connection pipe 3 includes a connection pipe a 31 connected to the side wall of the vertical drainage pipe 1, and a connection pipe B32 connected to the connection pipe a 31; the central axes of the connecting tubes A31 and B32 are in the same straight line.

Other parts of the embodiment are the same as those of the above embodiment, and thus are not described again.

Example 3:

the present embodiment is further optimized based on the above embodiment 1, as shown in fig. 2, a connector a is disposed on one side of the connection pipe a 31 close to the connection pipe B32, a connector B is disposed on one side of the connection pipe B32 close to the connection pipe a 31, and the connector a and the connector B are connected by bolts; one end of the A connector, which is far away from the A connecting pipe 31, is provided with an A boss 311, and one side of the B connector, which is close to the A connector, is provided with a B groove which is matched with the A boss 311 for use.

Preferably, the boss 311 is a circular boss, and the center of the circular boss is on the same straight line with the central axis of the connecting pipe 31 a; the B groove is a circular groove matched with the circular boss.

It should be noted that, through the above improvement, the leakage from the joint of the a connecting pipe 31 and the B connecting pipe 32 and the occurrence of air leakage in the use process when water in the drainage vertical pipe 1 enters the vent pipe 2 are effectively avoided through the cooperation of the circular ring-shaped groove and the circular ring-shaped boss, thereby affecting the surrounding environment.

Preferably, a circular ring-shaped sealing ring is arranged in the circular ring-shaped groove, so that sealing is further enhanced, and leakage is avoided.

Example 4:

the present embodiment is further optimized based on the above embodiment 1, and as shown in fig. 3 and 4, preferably, the a connection pipe 31 includes a pipe body a, and an a connection end disposed outside the pipe body a; the B connection pipe 32 includes a B pipe 321 sleeved inside the a pipe, and a B connection end connected to the a connection end.

Preferably, in order to facilitate installation and to prevent the need for adjustment of angle and direction during installation, a guide block 3211 is provided on the outer side of the B-tube 321 in the longitudinal direction thereof, and a guide groove 312 used in cooperation with the guide block 3211 is provided on the inner side of the a-tube.

Preferably, in order to make the installation more convenient and can guide effectively; the number of the guide blocks 3211 is a plurality of and is uniformly arranged along the circumference of the B tube body 321, and the guide grooves 312 are the same in number and are arranged in a one-to-one correspondence.

It should be noted that, through the above improvement, the installation is more convenient through the cooperation of the guide block 3211 and the guide groove 312, when installing, the position can be fixed as long as the guide block 3211 is inserted into the guide groove 312, the position does not need to be adjusted again, and the installation is convenient and fast.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Building drainage system, including drainage riser, connecting pipe, with drainage riser parallel arrangement and through the riser of ventilating of connecting pipe interconnect, its characterized in that: a negative pressure is constantly maintained inside the building drainage system.

2. The building drainage system of claim 1, wherein: and ventilators are arranged at the top ends of the drainage vertical pipe and the ventilation vertical pipe.

3. The building drainage system of claim 1, wherein: the side wall of the drainage vertical pipe and the side wall of the ventilation vertical pipe are connected with each other through a connecting pipe; wherein the connection pipe is inclined toward the drain pipe side.

4. The building drainage system of claim 1, wherein: the connecting pipe comprises a connecting pipe A connected with the side wall of the vertical drainage pipe and a connecting pipe B connected with the connecting pipe A; the central axes of the connecting pipe A and the connecting pipe B are on the same straight line.

5. The building drainage system of claim 2, wherein: the side, close to the connecting pipe B, of the connecting pipe A is provided with a connector A, the side, close to the connecting pipe A, of the connecting pipe B is provided with a connector B, and the connector A is connected with the connector B through a bolt; the one end that the A connecting pipe was kept away from to the A connector is provided with the A boss one side that the B connector is close to the A connector is provided with the B recess that uses with the cooperation of A boss.

6. A building drainage system according to claim 3, wherein: the boss A is an annular boss, and the circle center of the boss A is on the same straight line with the central axis of the connecting pipe A; the B groove is a circular groove matched with the circular boss.

7. The building drainage system of claim 2, wherein: the connecting pipe A comprises a pipe body A and a connecting end A arranged on the outer side of the pipe body A; the B connecting pipe comprises a B pipe body sleeved on the inner side of the A pipe body and a B connecting end connected with the A connecting end.

8. The building drainage system of claim 5, wherein: and a guide block is arranged on the outer side of the pipe body B and along the length direction of the pipe body B, and a guide groove matched with the guide block for use is arranged on the inner side of the pipe body A.

9. The building drainage system of claim 6, wherein: the quantity of guide block is a plurality of and evenly sets up along the circumference of B body, the same and the one-to-one setting of quantity of guide way.