CN220723784U - MBR membrane energy-saving aeration device - Google Patents

Abstract

The utility model relates to an MBR membrane energy-saving aeration device, which comprises a back-off shell and an air inlet pipe communicated with an air pump, wherein a plurality of independent air collecting chamber units are arranged above the air inlet pipe and are communicated with the air inlet pipe through air inlets, the air inlets are arranged on the air inlet pipe, the independent air collecting chamber units comprise an air blocking cover and an air guide pipe, the air blocking cover is arranged outside the air guide pipe, an air storage chamber is formed between the air blocking cover and the back-off object, an air guide chamber is formed between the air guide pipe and the air blocking cover, and the air guide chamber is communicated with the air storage chamber. The utility model not only has better cleaning effect on the pollutants on the surface of the membrane, but also cleans the aeration system to prevent sundries such as sludge in sewage from blocking the air inlet channel.

Description

MBR membrane energy-saving aeration device

Technical Field

The utility model relates to the technical field of MBR (membrane biological reactor) membrane equipment, in particular to an energy-saving aeration device for an MBR membrane.

Background

The aeration device is an indispensable component of the MBR membrane group device and is generally composed of a fan, an aeration main pipe and an aeration branch pipe at the bottom of the membrane group device, wherein the aeration branch pipe is provided with 1 or more aeration holes. When the device is in operation, the air is transmitted to the aeration branch pipe through the aeration main pipe by the fan and is discharged through the aeration holes.

At present, an aeration system with more practical applications in Membrane Bioreactor (MBR) engineering mainly comprises a blower, a gas transmission pipeline and a bottom aeration pipeline. Air is sent to the bottom aeration pipeline through the air-conveying pipeline by the air blower, and aeration is realized by using aeration holes arranged on the aeration pipeline. The aeration system usually needs to run continuously and cannot stop working, and because of the existence of back pressure, after the fan stops working, hot air can be suppressed in the aeration pipe for a long time, and sludge at the aeration hole can be heated and dried to block the hole, so that phenomena of unsmooth aeration or uneven bubbles and the like are caused. In an MBR system, the membrane scrubbing aeration generally adopts a large-bubble perforation aeration mode, and aeration is usually stopped when the system is at rest or is subjected to chemical cleaning, so that aeration holes are easier to block. The common perforation aeration mode often causes unsmooth aeration due to orifice blockage in the practical engineering application of the membrane bioreactor, thereby causing membrane fouling and finally affecting the operation environment of the whole process system.

Disclosure of Invention

In view of the problems, the utility model provides the MBR membrane energy-saving aeration device, which not only has better cleaning effect on pollutants on the surface of the membrane, but also cleans an aeration system to prevent impurities such as sludge in sewage from blocking an air inlet channel.

In order to achieve the above object and other related objects, the present utility model provides the following technical solutions:

the utility model provides an energy-conserving aeration equipment of MBR membrane, includes the casing of back-off and the intake pipe with the air pump intercommunication, the top of intake pipe is equipped with a plurality of independent air collecting chamber unit, independent air collecting chamber unit pass through the inlet port with the intake pipe intercommunication, the inlet port is located in the intake pipe, independent air collecting chamber unit includes keeps off gas hood and air duct, the air duct outside is equipped with keeps off the gas hood, keep off the gas hood with form the air receiver between the casing of back-off, the air duct with form the air guide cavity between the gas hood, the air guide cavity with the air receiver intercommunication.

Preferably, the air inlet pipe is arranged at the bottom of the inverted shell.

Preferably, the bottom of the air inlet pipe is provided with a plurality of air inlet pipe mud discharging ports.

Preferably, a mud discharging opening is arranged at the bottom of the gas shield.

Preferably, the independent air collecting chamber units are communicated with each other.

Preferably, the independent air collection chamber unit is provided with an air dividing block, and the air dividing block is arranged at the top of the air guide pipe and is mutually communicated.

Preferably, the air blocking cover is U-shaped.

Preferably, a partition plate is arranged inside the air dividing block.

Preferably, the air inlet hole is any one of rectangle, circle or ellipse.

Preferably, the mud discharging opening is in a circular structure.

The utility model has the following positive effects:

1. the air inlet pipe and the air storage cover are arranged separately, and the air inlet pipe is closed, so that the air pressure in the air inlet pipe can be relatively high in the air inlet process only by arranging small holes on the air inlet pipe. If the MBR membrane group device is not very horizontal, each independent gas storage cover can be still supplied with gas relatively uniformly through the small holes in the gas inlet pipe.

2. In the process of forming large bubbles by the single air storage cover, the utility model can not suck the air into the continuous air supply state, so that other air storage chambers can not store air, and the effect of amplifying the air flow can not be achieved.

3. Compared with perforation aeration, the utility model can obviously reduce energy consumption by 40% -60%, and simultaneously has better cleaning effect on pollutants on the surface of the membrane by large bubbles.

4. The air shield is fixed in the air storage chamber in a clamping manner, and can be detached when the system is maintained, so that the aeration system is cleaned, and sundries such as sludge in sewage are prevented from blocking an air inlet channel.

5. The lower end of the gas shield is provided with the mud discharging hole, when large bubbles are generated for aeration, water can be sucked through the mud discharging hole due to the siphon effect of gas, and sundries deposited in the gas shield can be sucked out.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

fig. 3 is a schematic view of a gas shield according to the present utility model.

The reference numerals in the figures illustrate: 1-back-off shell, 2-air storage chamber, 3-air shield, 4-air duct, 5-mud discharge port, 6-air guide chamber, 7-air dividing block, 71-partition plate, 8-air inlet pipe, 9-air inlet hole, 10-air inlet pipe mud discharge port and 11-independent air collection chamber unit.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Examples: as shown in fig. 1, 2 or 3, an MBR membrane energy-saving aeration device comprises a back-off shell 1 and an air inlet pipe 8 communicated with an air pump, a plurality of independent air collecting chamber units 11 are arranged above the air inlet pipe 8, the independent air collecting chamber units 11 are communicated with the air inlet pipe 8 through air inlets 9, the air inlets 9 are arranged on the air inlet pipe 8, the independent air collecting chamber units 11 comprise an air blocking cover 3 and an air guide pipe 4, the air blocking cover 3 is arranged outside the air guide pipe 4, an air storage chamber 2 is formed between the air blocking cover 3 and the back-off shell 1, an air guide chamber 6 is formed between the air guide pipe 4 and the air blocking cover 3, and the air guide chamber 6 is communicated with the air storage chamber 2.

In this embodiment, the air inlet pipe 8 is provided at the bottom of the reverse-buckled housing 1.

In this embodiment, a plurality of sludge outlets 10 are disposed at the bottom of the air inlet pipe 8.

In this embodiment, a sludge discharge port 5 is provided at the bottom of the air shield 3.

In this embodiment, the independent plenum units 11 are in communication with each other.

In this embodiment, the independent air collection chamber unit 11 is provided with an air dividing block 7, and the air dividing block 7 is disposed at the top of the air duct 4 and is mutually communicated.

In this embodiment, the air blocking cover 3 is U-shaped.

In this embodiment, a partition plate 71 is provided inside the air dividing block 7.

In this embodiment, the air intake hole 9 is any one of rectangle, circle or ellipse.

In this embodiment, the mud discharging opening 5 has a circular shape.

The working principle of the utility model is as follows: the energy-conserving aeration system of MBR membrane sets up in the bottom of MBR diaphragm, and the during operation is put into the aquatic together with the MBR membrane, and gas passes through the intake pipe, distributes the inlet port, enters into the gas receiver through the inlet port, and the gas receiver's gaseous step-by-step increases, can push out the water that originally was full of in the gas receiver downwards, when the water level reduces the lower extreme of air duct gradually, because the effect of buoyancy, the gas in the gas receiver upwards discharges through the air duct, produces the negative pressure simultaneously and takes out the gas in the gas receiver together, forms big bubble, washes the MBR diaphragm.

In conclusion, the utility model not only has better cleaning effect on the pollutants on the surface of the membrane, but also cleans the aeration system to prevent impurities such as sludge in sewage from blocking the air inlet channel.

It is to be understood that the application of the present application is not limited to the examples described above, but that modifications and variations can be made by a person skilled in the art from the above description, all of which modifications and variations are intended to fall within the scope of the claims appended hereto.

Claims (7)

1. The utility model provides an energy-conserving aeration equipment of MBR membrane, includes casing (1) and intake pipe (8) with air pump intercommunication of back-off, its characterized in that: the top of intake pipe (8) is equipped with a plurality of independent air collecting chamber unit (11), independent air collecting chamber unit (11) are located the top of inlet port (9) on intake pipe (8), independent air collecting chamber unit (11) are including keeping off gas hood (3) and air duct (4), air duct (4) outside is equipped with keeps off gas hood (3), keep off gas hood (3) outer wall with form air receiver (2) between back-off casing (1), air duct (4) with form air guide chamber (6) between the inner wall of air hood (3), air guide chamber (6) with air receiver (2) intercommunication, the bottom of intake pipe (8) is equipped with a plurality of intake pipe mud discharging port (10), intercommunication each other between independent air collecting chamber unit (11), be provided with on independent air collecting chamber unit (11) and divide gas block (7), divide gas block (7) to locate the top of air duct (4) and intercommunication each other.

2. The MBR membrane energy-saving aeration device according to claim 1, wherein: the air inlet pipe (8) is arranged at the bottom of the inverted shell (1).

3. The MBR membrane energy-saving aeration device according to claim 1, wherein: the bottom of the gas shield (3) is provided with a mud discharging port (5).

4. The MBR membrane energy-saving aeration device according to claim 1, wherein: the air shield (3) is U-shaped.

5. The MBR membrane energy-saving aeration device according to claim 1, wherein: and a separation plate (71) is arranged in the air separation block (7).

6. The MBR membrane energy-saving aeration device according to claim 1, wherein: the air inlet hole (9) is any one of rectangle, round or oval.

7. An MBR membrane energy-saving aeration device according to claim 3, characterized in that: the mud discharging opening (5) is of a circular structure.