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Aeration device

An aeration device and aerator technology, applied in water aeration, sustainable biological treatment, water/sludge/sewage treatment, etc. Solve problems such as sludge accumulation at the intervals of the device arrangement, achieve the effect of reducing aeration resistance, uniform aeration, and avoiding sludge accumulation

Pending Publication Date: 2020-05-12
SHANGHAI SHIYUAN ENVIRONMENT PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when dealing with some renovation projects, when the pool covers a large area and the aeration demand is small, the aerator spacing will be too large in actual application, resulting in uneven aeration, aeration Problems such as sludge accumulation at the intervals of the device arrangement

Method used

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Experimental program
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Effect test

Embodiment approach

[0044] In a preferred embodiment, the tripod air pipe 1 and the aerator 2 are made of PA66+30% GF, which is corrosion-resistant and wear-resistant, and has a service life of more than 10 years.

[0045] working principle:

[0046] like figure 1 and 3 As shown, when using the aeration device of the present invention, the fan provides pressurized air through the central axis main pipe 11 and enters the leg pipe 12, and then enters the inner central air pipe 22 of the small aerator 2 connected thereto, and the air passes through the central air pipe 22 to reach The air nozzle 242 at the bottom of the swirl structure 24 is reversely injected into the aerator 2 through the airflow recoil structure 23, and forms a state of rotation and rising under the action of the swirl structure 24; the entry of air reduces the density of the local water body, Due to the density difference, the mixed liquid at the bottom surges up from the mixed liquid inlet 211; during the rising process of th...

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Abstract

The invention discloses an aeration device which comprises a multi-legged stand air pipe and a plurality of aerators. The multi-legged stand air pipe comprises a center shaft main pipe and a pluralityof foot pipes, and each foot pipe is fixedly connected with one aerator; the aerator comprises an outer cylinder, a central air delivery pipe, an airflow backflushing structure, a first-stage flow guide cutting column and a second-stage flow guide cutting column; the central air delivery pipe penetrates through the second-stage flow guide cutting column and the first-stage flow guide cutting column and then extends to the lower part of the outer cylinder; the central air delivery pipe is fixedly connected with the second-stage flow guide cutting column and the first-stage flow guide cutting column respectively; the airflow backflushing structure is arranged below the first-stage flow guide cutting column and the central air delivery pipe; the airflow backflushing structure, the first-stage flow guide cutting column and the second-stage flow guide cutting column are all arranged in the outer cylinder; a mixed liquid inlet is formed in the bottom of the outer cylinder; and a mixed liquid outlet is formed in the top of the outer cylinder. According to the invention, a plurality of aerators are fixedly connected in the form of a multi-legged stand, so that more uniform aeration of thetank body can be ensured under the condition of the same aeration rate, and sludge deposition is effectively avoided.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment, in particular to an efficient aeration device. Background technique [0002] The aerator is an essential equipment for aeration and oxygenation in the sewage treatment process. The rotary aerator is a new type of aeration device that uses the principle of hydraulic shear for oxygenation and aeration. The invention patent with the patent publication number CN108793448A discloses a hydraulic shearing bubble generator. The oxygen capacity is strong, and the design of the adjustable support can deal with the uneven condition of the pool bottom. However, when dealing with some renovation projects, when the pool covers a large area and the aeration demand is small, the aerator spacing will be too large in actual application, resulting in uneven aeration, aeration Problems such as sludge accumulation at intervals between devices. Contents of the invention [0003] The present invention aim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00
CPCC02F7/00Y02W10/10
Inventor 张东曙邱立俊李文贞
Owner SHANGHAI SHIYUAN ENVIRONMENT PROTECTION TECH