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Quasi-molecular ultraviolet radiation and plasma coupling integrated waste gas degrading device

An ultraviolet radiation and plasma technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of shortened lamp life, easy breakdown of the medium, weakening the effect of plasma degrading waste gas, etc. Utilization, the effect of reducing breakdown voltage

Active Publication Date: 2014-09-03
赛瑞意(江苏)生物设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this patent, the ultraviolet light area is on the inside (electric field strength), and the plasma is on the outside. The electric energy is mainly used to generate ultraviolet radiation, which weakens the effect of the plasma on degrading exhaust gas, and it is difficult to optimize the energy utilization rate.
At the same time, the ultraviolet region is on the inside, the surface temperature of the lamp tube is high, and the medium is easy to break down, which will shorten the life of the lamp tube

Method used

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  • Quasi-molecular ultraviolet radiation and plasma coupling integrated waste gas degrading device
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  • Quasi-molecular ultraviolet radiation and plasma coupling integrated waste gas degrading device

Examples

Experimental program
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Effect test

Embodiment 1

[0055] (Example 1, Excimer ultraviolet radiation and plasma coupling integrated device for degrading waste gas)

[0056] See figure 1 , The excimer ultraviolet radiation and plasma coupled integrated waste gas degradation device of this embodiment includes a gas collection hood 1, a cyclone separation device 2, a gas distributor, a reactor 5 and an induced draft fan. The gas collection hood 1 includes a first gas collection hood 11 and a second gas collection hood 12 ; the gas distributor includes a first gas distributor 3 and a second gas distributor 4 . The first gas collection hood 11, the cyclone separation device 2, the first gas distributor 3, the reactor 5, the second gas distributor 4 and the second gas collection hood 12 are arranged sequentially from bottom to top.

[0057] The air inlet of the first gas collecting hood 11 is connected with the exhaust gas generator gas outlet or the gas storage tank of the gas to be degraded, and the gas outlet of the first gas col...

Embodiment 2

[0096] (Example 2, a method for the integrated degradation of waste gas by excimer ultraviolet radiation and plasma coupling)

[0097] The method for degrading waste gas integrated with excimer ultraviolet radiation and plasma coupling in this embodiment uses the device described in Embodiment 1.

[0098] See Figure 9 , the process of excimer ultraviolet radiation and plasma coupling integrated degradation of exhaust gas is as follows: the exhaust gas from the exhaust gas generator or the exhaust gas storage tank is initially mixed by the cyclone separation device 2, and then further mixed evenly by the first gas distributor 3, and then in the Under the action of the induced draft fan, it enters the excimer ultraviolet radiation and plasma coupled integrated reactor 5 for purification. The outlet of the reactor 5 is 1m away from the reactor, and a sampling port is set, and the concentration of the reacted gas is detected by an online gas analyzer, and the gas degraded to the...

Embodiment 3

[0106] (Example 3, a method for the integrated degradation of waste gas by excimer ultraviolet radiation and plasma coupling)

[0107] What this embodiment degrades is simulated flow state dimethylamine waste gas, initial concentration 1800mg / m 3 .

[0108] See Figure 7 , the excimer ultraviolet radiation of the present embodiment and the method for the integrated degradation waste gas of plasma coupling are the same as embodiment 2, the difference is:

[0109] In step 1., fill Kr 200torr and Br to the gas-filled zone B between the second quartz tube 52 and the third quartz tube 53 2 5 torr.

[0110] In step ②, close the valve 37-3 of the air pipe 37-2 connected to the air passage 37, and open the piston 39-1 to make the air intake through hole 38 in the C area unblocked.

[0111] In step ③, turn on the high-voltage power supply 63 and adjust the applied voltage to 7.5kV; the wavelength of excimer ultraviolet radiation is 207nm.

[0112] In step ④, the flow rate of dime...

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Abstract

The invention discloses a quasi-molecular ultraviolet radiation and plasma coupling integrated waste gas degrading device. A reactor comprises four quartz medium layers including a first quartz tube, a second quartz tube, a third quartz tube and a fourth quartz tube, which are sequentially arranged from inside to outside; an inner electrode is arranged in the first quartz tube, an outer electrode is arranged on the outer side surface of the third quartz tube, a reaction region A is arranged between the first quartz tube and the second quartz tube, an upper port and a lower port of the third quartz tube are sintered on the outer side surface of the second quartz tube, a closed annular cavity which is a gas filling region B is formed between the second quartz tube and the third quartz tube, and a reaction region C is arranged between the fourth quartz tube and the third quartz tube; gas passing through the region A is subjected to complex physical and chemical reactions and is degraded under the combined action of the quasi-molecular ultraviolet radiation and the plasma coupling, and gas passing through the region C is subjected to photolysis under the ultraviolet radiation.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201210575476.9 and the application date is December 26, 2012, and the invention name is "method and device for integrated excimer ultraviolet radiation and plasma coupling to degrade waste gas". technical field [0002] The invention belongs to the technical field of waste gas treatment, and in particular relates to a device for degrading waste gas integrated with excimer ultraviolet radiation and plasma coupling. Background technique [0003] With the development of science and technology, there are more and more waste gas treatment methods. At present, the waste gas treatment methods include absorption method, adsorption method, catalytic oxidation method, photocatalytic method and plasma technology. Under the current situation of advocating cleaner production and saving resources, the low-temperature plasma technology that does not require chemicals, does not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/76
Inventor 叶招莲赵洁汪斌戴亮蒋一飞
Owner 赛瑞意(江苏)生物设备有限公司
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