CN201914966U - Integrated orbal oxidation ditch assembled type aeration device - Google Patents

Abstract

The integrated Aubert oxidation ditch combined aeration device includes an integrated surface surface aerator for sewage push flow and aeration and at least one aeration row device installed on the bottom of the water, and the aeration row device passes through The pipeline is connected with the fan. The aeration row device includes an air supply pipe, the air supply pipe is vertically arranged, an elbow is arranged at the upper end of the air supply pipe, a flange plate is installed at the front end of the elbow pipe, and an aeration exhaust pipe arranged horizontally is installed at the lower end of the air supply pipe. , the aeration row includes an air supply branch pipe and several aeration pipes arranged in parallel, the air supply branch pipe is welded and communicated with several aeration pipes, and aeration holes are arranged on the pipe wall of the aeration pipe. The utility model adopts the combination of blast aeration and surface push-flow aerator, the blast aeration equipment is used for centralized air supply, bottom aeration, high aeration efficiency, good oxygenation effect, and the surface push-flow aerator plays an important role. Push flow function, rationally adjust the number of surface push flow aerators according to the actual situation, avoid wasting energy, save electricity, and the installation and maintenance of the device are very convenient.

Description

Integrated Aubert Oxidation Ditch Combined Aeration Device

technical field

The utility model relates to a sewage treatment facility, in particular to an integrated Aubert oxidation ditch combined aeration device used in the urban sewage treatment industry.

Background technique

At present, the treatment processes applied in sewage treatment plants can be divided into two categories: activated sludge method and contact oxidation method, and aeration and oxygenation are the core technology of all these processes and are an indispensable process. At the same time, aeration equipment is also the equipment with the highest energy consumption in the sewage aerobic biological treatment system, and its energy consumption accounts for 60-70% of the total energy consumption of the activated sludge process sewage plant. The performance of the aeration equipment directly affects the effect of sewage treatment, and also affects the operating cost of the sewage plant.

The key to ensuring the effect of aeration and oxygenation depends on the aeration equipment. Aeration equipment mainly includes blast aeration and mechanical aeration. Blast aeration system equipment is very complex, power consumption is large, and accidents such as blockage are prone to occur. When there is an accident such as blockage to repair the equipment, it is necessary to stop the system and then pump out all the water in the aeration tank. This maintenance method is time-consuming and laborious, increases the maintenance cost, and makes management and maintenance very inconvenient. Mechanical aeration is also called surface aeration. In the mechanical aeration system, rotary brush aeration is a more widely used aeration form in oxidation ditch. It has the advantages of simple structure, convenient installation and maintenance, and simple mechanical equipment. The adjustment range of the oxygen amount is small, and dead angles are prone to appear in the pool, and the precipitation phenomenon is serious.

Utility model content

Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide an integrated Aubert oxidation ditch combined aeration device which is energy-saving and easy to maintain.

In order to solve the above technical problems, the utility model describes an integrated Aubert oxidation ditch combined aeration device, which includes a surface push flow aerator for sewage push flow and aeration, and is characterized in that it also includes a water filter installed on the bottom of the water At least one aeration row device, the aeration row device is connected to the fan through pipelines.

The aeration row device (2) includes an air supply pipe (4), the air supply pipe (4) is arranged vertically, an elbow is arranged at the upper end of the air supply pipe (4), and a flange is installed at the front end of the elbow , the lower end of the air supply pipe (4) is equipped with a horizontally arranged aeration row, the aeration row includes an air supply branch pipe (5) and several aeration pipes (6) arranged in parallel, the air supply branch pipe (5) and several aeration pipes The air pipes (6) are welded and communicated, and at least one through hole is opened on the aeration pipe (6), and a microporous aeration membrane is set on the aeration pipe (6).

The aeration pipes are arranged symmetrically in 3 to 6 groups.

It also includes a support frame for fixing the aeration pipe, and the support frame is a rectangular frame welded by steel; one end of the aeration pipe is connected with the air supply branch pipe, and the other end is connected with the support frame.

The positive effect of the utility model is:

1. Combination of blast aeration and surface push flow aerator, blast aeration equipment is used for centralized air supply, bottom aeration, high aeration efficiency, good oxygenation effect, and improves the sewage treatment capacity of aerobic microorganisms; surface push The flow aerator equipment plays the role of pushing flow and adjusting aeration. According to the actual situation, the number of surface push flow aerator equipment is reasonably adjusted to avoid wasting energy and save electric energy.

2. The aeration row devices in the blast aeration are set independently, and each aeration row device can be disassembled without affecting the normal operation of other aeration rows. It is easy to install and disassemble, and is convenient for equipment maintenance, saving time and labor .

Description of drawings

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

Figure 2 is a schematic diagram of the structure of the aeration row device.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Example 1: Referring to Figure 1, the integrated Aubert oxidation ditch combined aeration device is installed in a three-channel Aubert oxidation ditch, and the flow state between the channels is a plug-flow type. Including ten surface push flow aerators 1 for sewage push flow and aeration and twelve aeration row devices 2 installed on the bottom; four aeration row devices 2 are evenly installed in the three channels, and the outer A surface push-flow aerator 1 is installed in front of the aeration row devices 2 installed in the ditch and the middle ditch, and a surface push-flow aerator is installed in front of the two aeration row devices 2 separated in the inner ditch. Machine, each aeration row device 2 is all connected in parallel on the main pipe 8 pipelines. In this implementation, the fan 3 is a Roots blower, a combination of blast aeration and surface push flow aerator 1, the fan 3 is used for centralized air supply, the surface push flow aerator 1 is used for sewage push flow, and each aeration row device 2 Installed at the bottom of the sewage tank for bottom aeration, the aeration efficiency is high, the oxygenation effect is good, and the aerobic microbial activity and reproduction speed in the sewage tank are improved, thereby improving its sewage treatment capacity, only need to control the power of the fan 3 It can control the amount of aeration, control and adjust the number of activated surface push flow aerators 1, and perform reasonable push flow according to the demand, so as to avoid wasting energy and save electric energy.

Referring to Fig. 2, the aeration row device 2 includes an air delivery pipe 4, the air delivery pipe 4 is arranged vertically, an elbow is provided at the upper end of the air delivery pipe 4, and a flange is installed at the front end of the elbow, and the air delivery pipe 4 The lower end of the aeration row is installed horizontally. The aeration row includes an air supply branch pipe 5 and five sets of parallel aeration pipes 6 arranged symmetrically. The air supply branch pipe 5 and the aeration pipe 6 are welded and connected. There is at least one through hole, and a microporous aeration membrane with many micropores is arranged on the surface of the aeration pipe 6 . The aeration row device 2 has a simple structure, and is convenient for disassembly and maintenance. The aeration pipes 6 can be symmetrically arranged in several groups. The microporous aeration membrane is filled with air and expands during aeration. Since the microporous aeration membrane is covered with small air outlet holes, a large number of small air bubbles emerge from the aeration. The contact area with the air is large, the amount of dissolved oxygen is increased, and the utilization rate of oxygen is high.

When installing and using, place the aeration row device 2 in the sewage tank, the aeration row is located at the bottom of the pool, the upper part of the air supply pipe 4 leaks out of the water surface, the flange installed at the front end of the elbow and the flange at the front end of the branch pipe 9 installed on the main pipe 8 The discs are connected by bolts, and aeration can be performed by opening the valve 10 installed on the branch pipe 9 .

If one or several aeration row devices 2 are blocked or damaged, you only need to close the valve 10 corresponding to the aeration row device 2, remove the bolts, take out the aeration row device 2 for maintenance or replace a new aeration row device Device 2, since the aeration row devices 2 are all connected in parallel on the main pipe and do not affect each other, so this new type of maintenance can be used for individual aeration without affecting the work of other aeration row devices 2 and the entire sewage treatment system The maintenance of the sewage treatment system reduces the maintenance cost of the sewage treatment system, saves time and labor, and will not affect the progress of sewage treatment.

Embodiment 2: On the basis of Embodiment 1, a support frame 7 for fixing the aeration pipe 6 is also included. In order to enhance the stability of the aeration row, the support frame 7 is a rectangular frame welded by steel. The weight of the entire aeration row device can be increased so that it can be immersed in the pool with the help of natural gravity, and the aeration tube will not float up due to low density or shake due to the inflated blast of the surface push flow aerator, which improves the aeration device. Working performance; at the same time, the two ends of the aeration pipe 6 are respectively fixed between the support frame 7 and the air supply branch pipe 5, which is more stable and impact-resistant.

The above-mentioned embodiments of the utility model are only examples for illustrating the utility model, rather than limiting the implementation of the utility model. For those of ordinary skill in the art, other variations and modifications in various forms can be made on the basis of the above description. All the implementation manners cannot be exhaustively listed here. All obvious changes or variations derived from the technical solutions of the utility model are still within the scope of protection of the utility model.

Claims (4)

1. integrated opel oxidation ditch built-up type aerating apparatus, comprise the surperficial plugflow aeration machine (1) that is used for sewage plug-flow and aeration, it is characterized in that also comprise being installed at least one water-bed aeration arranging device (2), this aeration arranging device (2) all is connected with blower fan (3) by pipeline.

2. integrated opel oxidation ditch built-up type aerating apparatus according to claim 1, it is characterized in that, described aeration arranging device (2) comprises induction pipe (4), described induction pipe (4) is vertical to be provided with, the upper end of this induction pipe (4) is provided with bend pipe, at this bend pipe front end ring flange is installed, horizontally disposed aeration row is installed in the lower end of described induction pipe (4), the arm of supplying gas (5) and several aeration tube that be arranged in parallel (6) are drawn together in this aeration package, the arm (5) of supplying gas welds with several aeration tubes (6) and is connected, described aeration tube has at least one through hole on (6), is set with the micro-pore aeration film on described aeration tube (6).

3. integrated opel oxidation ditch built-up type aerating apparatus according to claim 2 is characterized in that described aeration tube (6) is symmetrically arranged 3～6 groups.

4. according to claim 2 or 3 described integrated opel oxidation ditch built-up type aerating apparatuss, it is characterized in that, also comprise a fixedly support frame (7) of aeration tube (6), the rectangle frame of described support frame (7) for being welded with steel; Aeration tube (6) one ends link to each other with the arm of supplying gas (5), and the other end links to each other with support frame (7).

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