Submersible aerator centrifugal QXB7.5-100 with intake pipe and muffler

Installation diagram of submersible aerator

When the submersible aerator is in operation, the water pump impeller driven by the high-speed rotation of the submersible motor and the mud mixture are pushed and sprayed to form a negative pressure zone. The generated jet is sucked into the negative pressure zone of the nozzle through the suction pipe, and the gas is fully mixed with water and sludge in the jet pipe. The jet momentum of the jet diffusion pipe gradually converts into pressure energy and enters the diffusion.

In the diffuser, the mixed gas of gas, water, and mud is forced to undergo further shearing, crushing, and emulsification, ensuring the most sufficient oxygen dissolution in the water. At the same time, under the pressure of the fluid, oxygen carrying molecules and tiny bubbles are obliquely sprayed downwards from the diffusion tube nozzle, diffusing to form water and affect the sludge at the bottom of the biochemical tank. After stirring, they slowly rise from the bottom of the tank to the water surface, and the microbubbles stop leaving the water for a long time30 seconds is the complete dissolution and absorption of oxygen, improving oxygen transmission efficiency and oxygen.

The performance of centrifugal fans is influenced by the mud in the air, the high negative pressure and strong turbulence generated in the air, mixing, shearing, and the liquid and gas films that promote high-frequency oscillation. The diameter of bubbles is greatly reduced, the number of bubbles increases, and the specific surface area of bubbles increases. At the same time, the thinning of gas-liquid film can greatly reduce mass transfer resistance and facilitate the transfer of molecular oxygen from the gas phase to the liquid phase.

During the high-speed process, the jet has a high angular velocity due to the dispersing effect of high-speed rotation. The jet has strong penetration power, and the tiny bubbles travel far on the water, enhancing stirring, clogging, and aerobic capacity.

Centrifugal aerator aerationQi is a technology that makes air and water strong, with the purpose of dissolving oxygen dissolved in water or not requiring the introduction of gases and volatile substances into the air. In other words, it is a way to promote the exchange of gas and liquid substances.

It also has other important functions, such as mixing and blending. The mass transfer operation and dispersion mass transfer principle in which oxygen in air is converted into water and oxygen from the gas phase to the liquid phase through aeration are commonly proposed by the Lewis and Whitman double membrane theory.

The double membrane theory holds that there are gas and liquid film, air and liquid film and liquid film at the gas water interface, which belong to turbulent flowThe relationship between gas and liquid film belongs to laminar flow conditions, without convection. Under certain conditions, pressure and concentration gradients can occur. If the oxygen concentration in the liquid film is lower than that in water, the oxygen in the air will continue to disperse into the water through the liquid film. Obviously, the most effective method to overcome the membrane barrier of liquids is to change the "gas-liquid" interface.

Aeration agitation is like this. The detailed methods are: reduce the size of bubbles, increase the amount of foam, improve the level of liquid turbulence, improve the depth of aeration equipment, and extend the contact time of bubbles and liquid. Aeration equipment is a commonly used treatment method in sewage treatment.

Jiangsu Du'an Environmental Protection QXB7.5-100 Submersible Centrifugal Aeration Machine Installation Drawing Products are widely availableAnd the cities of Beijing, Tianjin, Shanghai, Chongqing, and Hechuan in China yongchuan Jiangjin City Nanchuan city

Shijiazhuang City, Hebei Province--Xinji City, Gaocheng City, Jinzhou City, Xinle City, Luquan City, Zhangjiakou City

Chengde City, Qinhuangdao City, Tangshan City--Qian'an City, Zunhua City, Langfang City - Sanhe City, Bazhou City

baoding--Dingzhou City, Zhuozhou City, Anguo City, Gaobeidian City, Hengshui City - Jizhou City, Shenzhou City

Cangzhou City--Botou City, Renqiu City, Huanghua City, Hejian City, Xingtai City - Nangong City, Shahe City

handan city--Wu'an City, Shanxi Province, Taiyuan City - Gujiao City, Shuozhou City, Datong City, Yangquan City, Changzhi City - Lucheng City

Jincheng--Gaoping City Xinzhou City Yuanping City Jinzhong City Jiexiu City Linfen City Houma City Huozhou City

Lvliang--Xiaoyi City, Fenyang City, Yuncheng City, Yongji City, Hejin City, Inner Mongolia Autonomous Region, Hohhot City

Baotou City, Wuhai City, Chifeng City, Tongliao City--Hulunbuir City Hulunbuir City Manzhouli City Zhalantun City Yakeshi City Genhe City Erguna City

Ulanqab City, Ordos City--Bayannur City, Fengzhen City (Xing'an League) - Alshan City, Ulanhot City（

(Xilingol League)--Xilinhot City, Erenhot City, Liaoning Province, Shenyang City, Xinmin City, Chaoyang City, Beipiao City, Lingyuan City, Fuxin City

Tieling--Tiaobingshan City Kaiyuan City Fushun City Benxi City Liaoyang City Dengta City Anshan City Haicheng City

Dandong City--Fengcheng City, Donggang City, Dalian City - Wafangdian City, Pulandian City, Zhuanghe City, Yingkou City - Dashiqiao City, Gaizhou City

Panjin City Jinzhou City--Linghai City, Beining City, Huludao City, Xingcheng City, Changchun City, Jilin Province, Dehui City, Jiutai City, Yushu City

Baicheng--Da'an City Taonan City Songyuan City Jilin City Panshi City Jiaohe City Huadian City Shulan City

Siping City--Shuangliao City, Gongzhuling City, Liaoyuan City, Tonghua City, Meihekou City, Ji'an City, Baishan City, Linjiang City

(Yanbian Korean Autonomous Prefecture)--Yanji City Tumen City Dunhua City Hunchun City Longjing City and Longshi City

Harbin City, Heilongjiang Province--Shuangcheng City Shangzhi City Wuchang City Acheng City Qitaihe City Qiqihar City Nehe City

Heihe--Beian City Wudalianchi City Daqing City Hegang City Yichun City Tieli City Jiamusi City Tongjiang City Fujin City

Jixi City, Shuangyashan City--Hulin City Mishan City Mudanjiang City Muling City Suifenhe City Hailin City Ning'an City

suihua--Zhaodong City, Hailun City, Jiangsu Province, Nanjing City, Xuzhou City, Pizhou City, Xinyi City

Lianyungang City, Suqian City, Huai'an City, Yancheng City--Dongtai City, Dafeng City, Yangzhou City, Yizheng City, Jiangdu City, Gaoyou City

Taizhou--Jingjiang City, Taixing City, Jiangyan City, Xinghua City, Nantong City, Haimen City, Qidong City, Tongzhou City, Rugao City

Zhenjiang--Yangzhong City Danyang City Jurong City Changzhou City Jintan City Liyang City Wuxi City Jiangyin City Yixing City

suzhou--Wujiang City Kunshan City Taicang City Changshu City Zhangjiagang City Zhejiang Province Hangzhou City Lin'an City Fuyang City Jiande City

Huzhou City Jiaxing City--Pinghu City, Haining City, Tongxiang City, Zhoushan City, Ningbo City, Cixi City, Yuyao City, Fenghua City

Shaoxing--Zhuji City Shangyu City Shengzhou City Quzhou City Jiangshan City Jinhua City Lanxi City Yongkang City Yiwu City Dongyang City

Taizhou--Linhai City, Wenling City, Wenzhou City - Rui'an City, Leqing City, Lishui City - Longquan City, Hefei City, Anhui Province