Modularized pulse aeration apparatus, standard aeration system module and filtration system

An aeration device and pulse-type technology, applied in chemical instruments and methods, permeation/dialysis water/sewage treatment, membrane technology, etc., can solve problems such as gas channel blockage, membrane fouling, and backflow blockage of gas source input ports, etc., to achieve Avoid the effect of clogging

Active Publication Date: 2014-10-08
HAINAN LITREE PURIFYING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, when the content of suspended solids in the liquid is too high, the cavities or pipes that are not connected in the structure are prone to settlement and blockage; when the aeration of the system is stopped, the gas source input port is prone to backflow and blockage, resulting The blockage of the gas channel will make the aeration ineffective; on the other hand, at the same position, each gas outlet should be aerated evenly to produce a uniform flushing effect on the membrane; at the same time, due to the influence of membrane filtration in the submerged membrane system, the liquid in the membrane pool will produce Concentration differentiation, the closer to the center of e

Method used

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  • Modularized pulse aeration apparatus, standard aeration system module and filtration system
  • Modularized pulse aeration apparatus, standard aeration system module and filtration system
  • Modularized pulse aeration apparatus, standard aeration system module and filtration system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0065] Embodiment one is a preferred modular pulse aeration device, such as figure 1 shown.

[0066] When the modular pulse aeration device is working, the main step-by-step state of a pulse release air flow cycle is shown as follows: Figure 5A , 5B , 5C, and 5D. The modular pulse aerator is submerged in liquid 40 . The gas fairing 4 is above the top plate 11 of the main housing, and the side wall bottom of the gas fairing 4 has a through hole 6, and the through hole 6 is used as the discharge port of the settled suspended matter in the gas fairing 4, so as to avoid forming a blockage. The upper port 5.2 of the diffuser 5 is flush with or higher than the top plate 12 of the gas fairing, and the highest point of the through hole 6 is lower than the lower port 5.1 of the diffuser 5, so that the airflow is prevented from escaping from the through hole 6 by forming a liquid seal. The height of the upper port 2.1 of the through-hole guide pipe 2 is flush with or higher than th...

Example Embodiment

[0071] Embodiment two is another preferred modular pulse aeration device, such as figure 2 shown.

[0072] The gas fairing 4 is above the top plate 11 of the main housing, and the side wall bottom of the gas fairing 4 has a through hole 6, and the through hole 6 is used as the discharge port of the settled suspended matter in the gas fairing 4, so as to avoid forming a blockage. The upper port 5.2 of the diffuser 5 is flush with or higher than the top plate 12 of the gas fairing, and the highest point of the through hole 6 is lower than the lower port 5.1 of the diffuser 5, so that the airflow is prevented from escaping from the through hole 6 by forming a liquid seal. The height of the upper port 2.1 of the through-hole guide pipe 2 is flush with or higher than the lower port 5.1 of the diffuser 5, and a gap is formed between the lower port 5.1 of the diffuser 5 and the upper top plate 12 of the gas fairing. The stagnant air chamber 10 in the height range H will be filled wit...

Example Embodiment

[0077] Embodiment three is another preferred modular pulse aeration device, such as Figure 4 shown.

[0078] The gas fairing 4 is above the top plate 11 of the main housing, and the side wall bottom of the gas fairing 4 has a through hole 6, and the through hole 6 is used as the discharge port of the settled suspended matter in the gas fairing 4, so as to avoid forming a blockage. The upper port 5.2 of the diffuser 5 is flush with or higher than the top plate 12 of the gas fairing, and the highest point of the through hole 6 is lower than the lower port 5.1 of the diffuser 5, so that the airflow is prevented from escaping from the through hole 6 by forming a liquid seal. The height of the upper port 2.1 of the through-hole guide pipe 2 is flush with or higher than the lower port 5.1 of the diffuser 5, and a gap is formed between the lower port 5.1 of the diffuser 5 and the upper top plate 12 of the gas fairing. The stagnant air chamber 10 in the height range H will be filled...

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Abstract

The invention provides a modularized pulse aeration apparatus. After a small flow of airflow is continuously input, and a pulse aeration effect generating large bubbles by instantly uniformly releasing a large flow of airflow can be realized, so the aeration cleaning effect of a membrane is improved, and the energy consumption of equipment is reduced. The apparatus can avoid aeration failure caused by obstruction. The invention also provides a standard aeration system module. The standard aeration system module comprises one or more modularized pulse aeration apparatuses, and the release of airflows with different frequencies and different flows by any positions and number of the modularized pulse aeration apparatuses can be realized in the standard aeration system module according to practical use demands to reach different aeration intensities in order to improve the aeration cleaning effect of the membrane and reduce the energy consumption of the equipment. The invention further provides a filtration system. The filtration system can be an external shell membrane filtration system or a submerged membrane filtration system, and comprises one or more standard aeration system modules.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a modular pulse aeration device, a standard aeration system module and a filter system. Background technique [0002] Water resources are one of the most critical resources for human survival. Nowadays, the ecological environment is destroyed and water pollution is becoming more and more serious. In order to achieve sustainable development, water treatment technology is particularly important. Membrane separation technology has been widely used in the fields of water purification or liquid filtration and separation. In the submerged membrane system, due to the concentration polarization phenomenon between the inside and outside of the membrane, it is often necessary to use aeration, that is, to be treated Air is inserted into the liquid to form air bubbles to generate disturbance and reduce the concentrated suspended matter attached to the outer surface of the membrane to achieve ...

Claims

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Application Information

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IPC IPC(8): B01D65/02B01D65/08C02F1/44
Inventor 陈清陈良刚陈漫吕鹏飞
Owner HAINAN LITREE PURIFYING TECH CO LTD
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