CN221254264U

CN221254264U - Backflow-preventing aeration device

Info

Publication number: CN221254264U
Application number: CN202323443462.4U
Authority: CN
Inventors: 张炎; 朱海清
Original assignee: Shanghai Jiading Xincheng Sewage Treatment Co ltd
Current assignee: Shanghai Jiading Xincheng Sewage Treatment Co ltd
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-07-02
Anticipated expiration: 2033-12-15

Abstract

The application relates to the field of sewage treatment equipment, and particularly discloses a backflow-preventing aeration device which comprises an exhaust pipe, an air inlet main pipe and a plurality of air inlet branch pipes which are sequentially communicated, wherein the plurality of air inlet branch pipes are respectively connected with an air compressor, one end of the exhaust pipe, which is far away from the air inlet main pipe, extends to the bottom of an aeration tank, a backflow-preventing structure is communicated between the exhaust pipe and the air inlet main pipe, the height of the backflow-preventing structure is higher than that of the air inlet main pipe and the exhaust pipe, sewage needs to flow back to a higher height through the backflow-preventing structure, a certain blocking effect is formed on backflow of sewage, and the influence of polluted water of the air compressor is avoided. The application has the advantages of simple structure and reliable backflow prevention effect.

Description

Backflow-preventing aeration device

Technical Field

The application relates to the field of sewage treatment equipment, in particular to a backflow-preventing aeration device.

Background

The aeration tank (aeration basin) is a biochemical reactor designed by people according to the characteristics of microorganisms, and the degradation degree of organic pollutants mainly depends on the aeration reaction conditions designed by people. The aeration tank utilizes an activated sludge method to treat sewage, a certain sewage residence time is provided in the tank, and the oxygen amount required by aerobic microorganisms and the mixing condition that sewage and activated sludge are fully contacted are met. The aeration tank mainly comprises a tank body, an aeration system and a water inlet and outlet. The tank body is generally constructed by reinforced concrete, and the plane shape of the tank body is rectangular, square, round and the like.

The aeration method can be divided into two types, mainly blast aeration and mechanical aeration. The air is conveyed to the bottom of the tank by an air compressor through a pipeline, and is dispersed and escaped into bubbles by an air diffusion device arranged at the bottom of the tank, so that oxygen is dissolved into water at a gas-liquid interface.

However, after aeration is stopped, the air pressure in the pipeline is reduced, water at the bottom of the tank flows back into the pipeline under the water pressure, and if the water in the pipeline enters the air compressor, the normal use of the air compressor is affected.

Disclosure of utility model

In order to prevent sewage in the aeration tank from flowing back into the air compressor, the application provides the backflow-preventing aeration device, which has the advantages of simple structure and reliable backflow-preventing effect.

The application provides a backflow-preventing aeration device which adopts the following technical scheme:

The utility model provides an anti-reflux aeration equipment, includes blast pipe, air inlet manifold and a plurality of air inlet branch that communicate in proper order and set up, and is a plurality of air inlet branch communicates respectively has air compressor, the one end that air inlet manifold was kept away from to the blast pipe extends to the aeration tank bottom, the intercommunication is provided with anti-reflux structure between blast pipe and the air inlet manifold, just the height that anti-reflux structure was located is higher than the height that air inlet manifold was located and the height that the blast pipe was located.

Through adopting above-mentioned technical scheme, utilize air compressor to loop through air inlet branch, air inlet header pipe and backflow prevention structure to finally discharge to the aeration tank bottom through the blast pipe, because the water pressure at aeration tank bottom is limited, the height that sewage backward flow can reach is limited, through the height that backflow prevention structure improves sewage backward flow to air inlet header pipe and need reach, can effectively avoid sewage backward flow to air compressor, improve the stability of device operation.

Optionally, the backflow prevention structure is including being the backflow prevention pipe of U type structure, backflow prevention pipe U type opening sets up downwards, backflow prevention pipe both ends are linked together with intake manifold and blast pipe respectively.

Through adopting above-mentioned technical scheme, utilize the structure that the backflow prevention pipe is the setting of falling U type for the sewage backward flow must flow through the higher backflow prevention pipe of height before to intake manifold, and then improve the required pressure of sewage backward flow, form backflow prevention effect, and simple structure is stable, sets up portably.

Optionally, the sewage treatment device further comprises a water pumping assembly, wherein the water pumping assembly is used for pumping sewage in the exhaust pipe.

Through adopting above-mentioned technical scheme, sewage can flow back to the junction of blast pipe and preventing back structure under certain circumstances, utilizes the subassembly of drawing water to take out the sewage in the blast pipe, can further prevent that sewage from flowing back to air compressor, further improves the stability of device operation.

Optionally, the pumping assembly includes drinking-water pipe and first valve body, the drinking-water pipe communicates in the blast pipe is close to the one end of anti-return structure, the one end that the blast pipe was kept away from to the drinking-water pipe is linked together with the water pump, first valve body is used for controlling the break-make switching of drinking-water pipe.

Through adopting above-mentioned technical scheme, through opening first valve body, the drive water pump can be followed the blast pipe with sewage and taken out, simple structure and operation are stable.

Optionally, the pumping assembly further comprises a water level sensor and an electric actuator, wherein the water level sensor is arranged in the exhaust pipe and used for detecting the water level in the exhaust pipe, and the electric actuator is arranged at the first valve body and used for controlling the opening and closing of the first valve body.

Through adopting above-mentioned technical scheme, utilize water level sensor to judge whether the water level in the blast pipe has reached certain height, when the water level is higher, the system sends the signal to electric actuator, and electric actuator opens first valve body to draw out the sewage in the blast pipe by the water pump, draw water automatically according to the water level in the blast pipe, improve the efficiency of drawing water and the timeliness of drawing water, further prevent sewage backward flow.

Optionally, a water pumping branch pipe is communicated between the exhaust pipe and the water pump, and a second valve body for controlling the on-off of the water pumping branch pipe is arranged on the water pumping branch pipe.

Through adopting above-mentioned technical scheme, through setting up the second valve body of pumping branch pipe and cooperation manual control, can be when electric actuator breaks down, manual intercommunication pumping assembly, and then the sewage in the blast pipe of taking out, further improved the stability of device operation.

Optionally, prevent that the back flow below is provided with a plurality of support bodies that are used for supporting, the support body top is provided with the installed part of U type, the U type opening of installed part is downwards and be fixed in on the support body, prevent that the back flow is located the U type opening of installed part.

Through adopting above-mentioned technical scheme, utilize U type installed part can improve the stability that the back flow is located the support body, improve the holistic structural strength of device.

Optionally, the air inlet manifold is located below the backflow preventing pipe, and the air inlet manifold penetrates through the frame body and is supported by the frame body.

Through adopting above-mentioned technical scheme, through setting up the air inlet header pipe in preventing the back flow below and together support by the support body, can effectively save space, improve the supporting efficiency of support body simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The air is sequentially discharged to the bottom of the aeration tank through the air inlet branch pipe, the air inlet main pipe and the backflow preventing structure by utilizing the air compressor, the water pressure at the bottom of the aeration tank is limited, the height which can be reached by sewage backflow is limited, the height which is needed to be reached by sewage backflow to the air inlet main pipe is improved through the backflow preventing structure, the sewage backflow to the air compressor can be effectively avoided, and the running stability of the device is improved;

2. Judging whether the water level in the exhaust pipe reaches a certain height by utilizing a water level sensor, when the water level is higher, sending an electric signal to an electric actuator by the system, opening a first valve body by the electric actuator, pumping the sewage in the exhaust pipe by a water pump, and automatically pumping water according to the water level in the exhaust pipe, thereby improving the pumping efficiency and the pumping timeliness and further preventing the sewage from flowing back;

3. Through setting up the branch pipe of drawing water and cooperating manual control's second valve body, can be when electric actuator breaks down, manual intercommunication draws water the subassembly, and then draws the sewage in the blast pipe, has further improved the stability of device operation.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

fig. 2 is a schematic view showing the structure of the pumping assembly according to the embodiment of the present application.

Reference numerals: 1. an exhaust pipe; 2. an intake manifold; 3. an air inlet branch pipe; 4. an air compressor; 5. a backflow prevention structure; 51. a backflow prevention pipe; 6. a water pumping assembly; 61. a water pumping pipe; 62. a first valve body; 63. a second valve body; 65. an electric actuator; 66. a water pumping branch pipe; 7. a frame body; 71. and a mounting member.

Detailed Description

The application is described in further detail below with reference to fig. 1-2.

The embodiment of the application discloses a backflow-preventing aeration device, which comprises an exhaust pipe 1, an air inlet main pipe 2 and a plurality of air inlet branch pipes 3 which are sequentially communicated, wherein the plurality of air inlet branch pipes 3 are respectively connected with an air compressor 4, one end, far away from the air inlet main pipe 2, of the exhaust pipe 1 extends to the bottom of an aeration tank, a backflow-preventing structure 5 is communicated between the exhaust pipe 1 and the air inlet main pipe 2, and the height of the backflow-preventing structure 5 is higher than that of the air inlet main pipe 2 and the exhaust pipe 1.

In use, the air compressor 4 discharges air from the plurality of inlet manifold 3 into the inlet manifold 2, then sequentially through the backflow prevention structure 5 and the exhaust pipe 1, and finally into the bottom of the aeration tank. After the aeration is completed, sewage in the aeration tank can flow back into the exhaust pipe 1 under water pressure, and the backflow preventing structure 5 enables sewage to flow to the air compressor 4 only by flowing back to a higher height, so that effective blocking is formed for the backflow of the sewage, and the air compressor 4 is ensured to be free from the influence of the sewage.

Specifically, referring to fig. 1, the backflow preventing structure 5 includes a backflow preventing pipe 51 having a U-shaped structure, and a U-shaped opening of the backflow preventing pipe 51 is provided downward, and both ends of the backflow preventing pipe 51 are respectively communicated with the intake manifold 2 and the exhaust pipe 1. Before sewage flows back to the air compressor 4, the sewage needs to flow back through the backflow prevention pipe 51, and due to the U-shaped structure of the backflow prevention pipe 51, part of pipe bodies of the backflow prevention pipe 51 are located at higher positions, so that sewage backflow can be effectively prevented.

In the present embodiment, the backflow prevention pipe 51 is preferably configured in a U-shaped structure. In other embodiments, the backflow preventing pipe 51 may be configured in an inverted V-shape, so long as the backflow preventing pipe 51 can be lifted to have a backflow preventing effect.

Referring to fig. 1 and 2, a pumping assembly 6 is provided on the exhaust pipe 1 in a communicating manner, and the pumping assembly 6 is used for pumping out sewage in the exhaust pipe 1. Due to the water pressure of the aeration tank, sewage may flow back to the higher position of the exhaust pipe 1, and sewage flowing back in the exhaust pipe 1 can be timely discharged by utilizing the water pumping assembly 6, so that sewage is further prevented from flowing back to the air compressor 4.

Specifically, referring to fig. 2, the pumping assembly 6 includes a pumping pipe 61 and a first valve body 62, one end of the pumping pipe 61 is connected to one end of the exhaust pipe 1 near the backflow preventing pipe 51, the other end is connected to a water pump (not shown in the water pump drawing), and the first valve body 62 is mounted on the pumping pipe 61 and is used for controlling on-off switching of the pumping pipe 61. The sewage in the exhaust pipe 1 can be pumped out by the water pump by opening the first valve body 62.

Further, referring to fig. 2, the pumping assembly 6 further includes a water level sensor (not shown) provided in the exhaust pipe 1 and configured to detect a water level in the exhaust pipe 1, and an electric actuator 65 provided at the first valve body 62 and configured to control opening and closing of the first valve body 62.

The water level sensor is used for detecting whether sewage in the exhaust pipe 1 flows back to a certain height, and when the water level reaches the detection position of the water level sensor, the water level sensor sends an electric signal to the control system, and the system controls the electric actuator 65 to open the first valve body 62, and simultaneously drives the water pump to pump out the sewage in the exhaust pipe 1. The water level sensor and the electric actuator 65 are matched with a water pump to automatically pump water according to the amount of the sewage flowing back in the exhaust pipe 1, so that the sewage flowing back to a higher position is timely pumped out, and the running stability of the device is improved.

Further, referring to fig. 1, a pumping branch pipe 66 is communicated between the exhaust pipe 1 and the water pump, and a second valve body 63 for controlling on-off of the pumping branch pipe 66 is provided on the pumping branch pipe 66. Through setting up the second valve body 63 of pumping branch pipe 66 and cooperation manual control, can be when electric actuator 65 breaks down, manual intercommunication pumping subassembly 6, and then the sewage in the blast pipe 1 is taken out, has further improved the stability of device operation

Referring to fig. 1, a plurality of support bodies 7 for supporting are arranged below the backflow preventing pipe 51, a U-shaped mounting piece 71 for fixing the backflow preventing pipe 51 is arranged at the top of the support bodies 7, the U-shaped opening of the mounting piece 71 is arranged downwards, the U-shaped opening end of the mounting piece 71 is fixed on the support bodies 7, and the backflow preventing pipe 51 is clamped in the U-shaped opening of the mounting piece 71 by the mounting piece 71 and the support bodies 7. The mount 71 can effectively improve the stability of the mounting structure of the return preventing pipe 51.

Referring to fig. 1, the intake manifold 2 is disposed below the backflow prevention pipe 51, and the intake manifold 2 is disposed on the frame 7 in a penetrating manner and supported by the frame 7. The intake manifold 2 is arranged below the backflow preventing pipe 51 and is supported by the frame body 7, so that space can be effectively saved, and meanwhile, the supporting efficiency of the frame body 7 is improved.

The embodiment of the application discloses an implementation principle of a backflow-preventing aeration device, which comprises the following steps: the inverted U-shaped structure of the backflow prevention pipe 51 improves the height of part of the pipe body of the backflow prevention pipe 51, and can effectively prevent sewage backflow; meanwhile, the water level sensor detects the amount of backflow of the sewage in the exhaust pipe 1 at a moment, and when the amount of backflow reaches a certain amount, the electric actuator 65 automatically opens the first valve body 62 and pumps out the sewage by the water pump.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. An anti-reflux aeration device is characterized in that: including blast pipe (1), intake manifold (2) and a plurality of air inlet branch (3) that communicate in proper order and set up, a plurality of air inlet branch (3) communicate respectively has air compressor (4), the one end that intake manifold (2) was kept away from to blast pipe (1) extends to the aeration tank bottom, the intercommunication is provided with between blast pipe (1) and intake manifold (2) and prevents backward flow structure (5), just the height that prevents backward flow structure (5) were located is higher than the height that intake manifold (2) were located and the height that blast pipe (1) were located.

2. A backflow prevention aeration device according to claim 1, wherein: the backflow prevention structure (5) comprises a backflow prevention pipe (51) with a U-shaped structure, the U-shaped opening of the backflow prevention pipe (51) is downwards arranged, and two ends of the backflow prevention pipe (51) are respectively communicated with the air inlet main pipe (2) and the exhaust pipe (1).

3. A backflow prevention aeration device according to claim 1, wherein: the sewage treatment device further comprises a water pumping assembly (6), and the water pumping assembly (6) is used for pumping sewage in the exhaust pipe (1).

4. A backflow prevention aeration device according to claim 3, wherein: the pumping assembly (6) comprises a pumping pipe (61) and a first valve body (62), the pumping pipe (61) is communicated with one end, close to the backflow prevention structure (5), of the exhaust pipe (1), one end, far away from the exhaust pipe (1), of the pumping pipe (61) is communicated with the water pump, and the first valve body (62) is used for controlling on-off switching of the pumping pipe (61).

5. A backflow prevention aeration device according to claim 4, wherein: the water pumping assembly (6) further comprises a water level sensor and an electric actuator (65), wherein the water level sensor is arranged in the exhaust pipe (1) and used for detecting the water level in the exhaust pipe (1), and the electric actuator (65) is arranged at the first valve body (62) and used for controlling the opening and closing of the first valve body (62).

6. A backflow prevention aeration device according to claim 5, wherein: the water pump is characterized in that a water pumping branch pipe (66) is communicated between the exhaust pipe (1) and the water pump, and a second valve body (63) for controlling the on-off of the water pumping branch pipe (66) is arranged on the water pumping branch pipe (66).

7. A backflow prevention aeration device according to claim 2, wherein: the anti-backflow pipe is characterized in that a plurality of support bodies (7) used for supporting are arranged below the anti-backflow pipe (51), U-shaped mounting pieces (71) are arranged at the tops of the support bodies (7), U-shaped openings of the mounting pieces (71) are downward and fixed on the support bodies (7), and the anti-backflow pipe (51) is located in the U-shaped openings of the mounting pieces (71).

8. A backflow prevention aeration device according to claim 7, wherein: the air inlet main pipe (2) is positioned below the backflow prevention pipe (51), and the air inlet main pipe (2) penetrates through the frame body (7) and is supported by the frame body (7).