Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber

Abstract

The invention discloses a venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber, including a venturi pipe and a scoop-type porous plate device, wherein the venturi pipe is connected with the scoop-type porous plate device, the venturi pipe is composed of a contraction section, a throat straight pipe section, and a diffusion section which are in sequential connection; the inlet section and the outlet section of the venturi pipe and the throat straight pipe are all of square cross-section, two sides and top of the throat straight pipe are provided with first organic glass which is easy for observation, the bottom of the throat straight pipe section is provided with a first movable steel plate, the first movable steel plate is provided with a plurality of pressure detection holes which are convenient for collecting pressure at each measuring point in a real time manner. According to the invention, a scoop-type porous plate is stretched into the observation section to facilitate an experimenter to observe a cavitation generation process and acquire images; a matrix type and interlacing type distribution is used for the arrangement of porous plate holes to enhance the effects of hydrodynamic cavitation; and the positions of the venture pipe and the porous plate can be exchanged to degrade refractory contaminants of different nature.

Description

technical field [0001] The invention relates to a combined hydraulic cavitation reaction chamber of a Venturi tube and a porous plate. Background technique [0002] With the development of industry, the composition of wastewater is becoming more and more complex and contains a large amount of toxic and harmful substances. It is difficult for traditional wastewater treatment methods to meet the latest wastewater discharge standards. The existing physical and chemical methods have complex reaction devices and excessive treatment costs. High disadvantage. New wastewater treatment technologies are emerging, and hydrodynamic cavitation is one of them. [0003] When the velocity of the liquid increases, its pressure will decrease. When the pressure drops to the saturated vapor pressure of the corresponding temperature of the liquid, the liquid will cavitate to form a large number of cavities, and the cavities will flow with the liquid to form a two-phase flow. When the pressure ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of existing wastewater treatment methods such as difficulty in meeting wastewater discharge standards and high cost of complex treatment of physicochemical devices, the present invention provides a venturi tube and perforated plate combined hydraulic system with simple structure, less consumables, convenient operation, and low maintenance costs. cavitation reaction chamber

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