Large capacity microwave photocatalytic wastewater degradation device of self-inspection electrodeless UV lamp state

Abstract

The present invention relates to a large capacity microwave photocatalytic wastewater degradation device of a self-inspection electrodeless UV lamp state, belonging to the technical field of wastewater treatment. In the related art, the problems include difficulty in real-time awareness of the functional state of an electrodeless lamp, water burst of a quartz pipe cavity of the electrodeless lamp, waste of microwave energy, smaller single-tank wastewater treatment capacity, difficulty in distinguishing the time of degradation reaction endpoint, magnetron corrosion caused by reverse crossflow of secondary ozone and the like, and the scheme is designed against the series of the problems. According to the scheme, one ends of optical fibers are introduced to rim of a quartz pipe and the ends point at the quartz pipe cavity, and the other ends of the optical fibers get close to and point at a detection window of a UV intensity detector. The UV lamp intensity detector can be further coupled with a UV intensity attenuation alarm and other extension mechanism. The electrodeless lamp and the functional state thereof are monitored in a real-time manner by the structure to prevent related faults, and the other problems are also solved by the structure.

Description

technical field [0001] The invention relates to a large-capacity microwave photocatalytic wastewater degradation device capable of self-checking the state of an electrodeless ultraviolet lamp, and belongs to the technical field of CO2F wastewater treatment. Background technique [0002] Microwave photocatalytic degradation treatment technology, as an effective harmless treatment technology for industrial wastewater containing organic pollutants, has attracted much attention in recent years. [0003] Regarding the microwave photocatalytic degradation technology, as an example, refer to the Chinese patent application with publication number CN102260003A. [0004] The Chinese patent application with the publication number CN102260003A uses microwaves as the excitation source to excite the electrodeless ultraviolet lamp to emit ultraviolet rays, and irradiates the suspension mixed with photocatalyst titanium dioxide inside the liquid. The electrodeless ultraviolet lamp is shroud...

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Problems solved by technology

[0050] Based on the structure of the CN102260003A scheme, the electrodeless ultraviolet lamp is placed in the lumen of the quartz tube. In order to ensure the normal luminous work of the electrodeless ultraviolet lamp, the inner wall of the quartz tube must be kept clean to maintain the permeability to ultraviolet light. Moreover, based on similar light permeability requirements, the outer side of the lamp wall of the electrodeless ultraviolet lamp involved must also be kept clean; however, the structure of the CN102260003A scheme is difficult to avoid the problem of water inrush in the lumen area of ​​the quartz tube The so-called water inrush in this case refers to the unwelcome water in the reactor protruding into the lumen area of ​​the quartz tube; there are generally two reasons for the water inrush: one is the quartz tube The thermal expansion and contraction of the air in the cavity area leads to underpressure in the lumen area of ​​the quartz tube, and the second is that the air in the lumen area of ​​the quartz tube escapes and causes underpressure in the lumen area of ​​the quartz tube. In this way, driven by the relative positive pressure of the surrounding water body, The water in the reactor gradually breaks into the lumen area of ​​the quartz tube, forming a water inrush situation; when the air pump is powered off and the outer surface of the quartz tube is partially or mostly submerged in water, the outburst is especially prone to occur. Water conditions; specifically, the most likely period for this water inrush problem is the following two periods, the first period is when the wastewater to be treated is filled into the reactor and the air pump has not been started, and the second period is After the air pump is turned off and the water extraction procedure has not been completed; when the water inrush situation occurs, the water mixed with many inorganic impurities protruding into the lumen of the quartz tube can easily contaminate the inner wall of the lumen of the quartz tube and the electrodeless ultraviolet lamp The outer surface of its own lamp wall leads to a significant decrease in the ultraviolet light transmittance of the relevant light-transmitting structural parts, which in turn affects the overall wastewater photodegradation treatment efficiency of the relevant wastewater degradation reactor. Therefore, the problem of water inrush should not be avoided. This is Question sixteen

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