Membrane filtration equipment and method with ultrasonic cleaning function as well as sewage purification system
An ultrasonic and membrane filtration technology, applied in ultrafiltration, chemical instruments and methods, osmosis/dialysis water/sewage treatment, etc., can solve the problems of low actual energy conversion rate, reduced treatment effect, energy waste, etc., to achieve the benefit of shedding , Avoid ultrasonic interference offset, reduce equipment and operating costs
Pending Publication Date: 2018-01-26
威洁(石狮)中水回用技术有限公司
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Problems solved by technology
In the existing ultrafiltration device, ultrasonic waves propagate under normal pressure, and the attenuation is relatively large during the propagation process, and the actual energy conversion rate is low; ultrasonic vibration requires more transducers to form a transducer array to make ultrasonic vibration Covering the ultrafiltration membrane more comprehensively is costly, and when the ultrasonic waves generated by the opposite transducers act on the same point, they will interfere with each other and offset the attenuation, which not only wastes energy but also reduces the treatment effect
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[0022] The present invention will be further described below through specific embodiments.
[0023] refer to figure 1 As shown, a membrane filtration device with ultrasonic cleaning includes a filtration membrane module 100 , a pressure cylinder 1 , an ultrasonic generator 2 , a backwasher 3 , and a rotating mechanism 4 .
[0024] The pressure cylinder 1 includes a pressure-bearing layer 11 and a protective layer 12. The pressure-bearing layer 11 is arranged in the protective layer 12 with a gap for accommodating a transducer therebetween. The pressure-bearing layer 11 is made of stainless steel. The pressure-bearing layer 11 There are water inlet 13, sewage outlet 14, dosing port 15, pressure gauge 16, water inlet 13, sewage outlet 14, and dosing port 15 are respectively provided with control valves, and the filter membrane module 100 is placed in the pressure-bearing layer 12, The sewage outlet 14 is located at the bottom of the pressure-bearing layer 12, the pressure gauge...
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The invention relates to the technical field of sewage treatment equipment, in particular to membrane filtration equipment and method with an ultrasonic cleaning function as well as a sewage purification system. The membrane filtration equipment with the ultrasonic cleaning function comprises a filter membrane assembly, a pressure cylinder, an ultrasonic generator and a backwashing device, whereinthe filter membrane assembly comprises a purified water outlet connected with the backwashing device, a water inlet and a drain outlet are arranged on the pressure cylinder, the filter membrane assembly is arranged in the pressure cylinder, and the ultrasonic generator comprises a plurality of transducers arranged on the pressure cylinder and facing the filter membrane assembly. The equipment cancontinuously and efficiently treat sewage; during cleaning, the pressure cylinder is under certain pressure, large ultrasonic vibration amplitude contributes to falling of pollutants, each transduceris matched with a rotating mechanism to realize uniform coverage of ultrasonic waves, the equipment and operation cost is reduced, and the problem of offset caused by interference of ultrasonic wavesemitted by opposite transducers is solved.
Description
technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a membrane filtration equipment and method with ultrasonic cleaning and a sewage purification system. Background technique [0002] Sewage treatment is an important project for sustainable development. Membrane treatment is widely used because of its good treatment effect and low energy consumption. However, after a period of membrane treatment, the surface is contaminated with more dirt, the operating pressure increases, the working efficiency decreases and the operating cost increases. Therefore, the filter membrane needs to be cleaned to restore its working efficiency. [0003] In order to solve the above problems, the application publication number CN102580545A discloses a combined ultrafiltration device with membrane pollution control and ultrasonic cleaning, which is characterized in that it mainly consists of an ultrafiltration system, a blast aeration s...
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IPC IPC(8): B01D61/18B01D65/02C02F1/44
Inventor 王俊杰
Owner 威洁(石狮)中水回用技术有限公司
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