Photo-chlorination reaction apparatus with light source built-in

Abstract

The invention discloses a photo-chlorination reaction apparatus with a light source built-in. The photo-chlorination reaction apparatus is characterized by comprising: a photo-chlorination reaction apparatus body (1); an ultraviolet light illumination apparatus which is installed inside the photo-chlorination reaction apparatus body (1); a liquid level metering tube (6) arranged on the side of the photo-chlorination reaction apparatus body (1); and a SiCl4 feeding valve (7), a chlorine feeding valve (8) and a tail gas discharge valve (9) which are connected to the photo-chlorination reaction apparatus body (1), wherein the valves are respectively connected to gas pipelines and liquid pipelines. The invention is advantaged in that the ultraviolet light illumination apparatus is installed inside the photo-chlorination reaction apparatus body (1) so that photochemical reaction efficiency can be greatly increased and meanwhile danger on operators due to leakage of ultraviolet light can be avoided maximumly. An ultraviolet light having a cold light source is employed in the ultraviolet light source so that the luminescent intensity and the luminescent area can be adjusted according to production requirements. The light source can be flexibly selected according to characteristics of different materials.

Description

technical field [0001] The invention relates to a novel photochlorination reaction device, in particular to a built-in light source type photochlorination reaction device. Background technique [0002] Most of the existing photochlorination reaction devices are composed of reactors, light sources, heat exchangers and the like. Outside the single reactor, an external light source is set to initiate the photochlorination reaction, and the temperature is controlled by a heat exchanger. Such a reaction device has disadvantages such as slow reaction speed, low efficiency, and high cost. [0003] In the Chinese patent "photochlorination reaction device" with the application number of 200920350186.8, a photochlorination device that combines the distillation tower made of quartz glass with the photochlorination device is introduced, which has both photochlorination reaction and rectification purification. chemical reaction device. That is to say, the enamel distillation kettle is...

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Problems solved by technology

[0005] 1. The photochlorination reaction device is placed outside the middle of the rectification tower. When the total reflux photochlorination reaction is carried out in the gas-liquid phase coexistence area, although the utilization rate of chlorine can be improved; but there is also a residence time of materials in the photochlorination reaction area. Too short, insufficient photochlorination reaction, etc.;

[0006] 2. The ultraviolet lamp fixed outside cannot change its luminous intensity and luminous area, and it is difficult to make corresponding adjustments according to the change of materials; and due to the strong ultraviolet radiation, the ultraviolet lamp placed outside will cause harm to the health of operators;

[0007] 3. The high-pressure ultraviolet mercury lamp has high power and fast reaction speed, but it generates high heat when it is illuminated, so it must be cooled, resulting in complex equipment structure and high cost;

[0008] 4. Although the quartz column has high light transmittance, its pressure resistance is poor. When the photochlorination reaction is violent, it may cause the risk of bursting;

[0009] 5. The connection between the enamel distillation kettle and the quartz column makes the connection of the equipment complicated, and it is easy to seal poorly so that the internal materials are in contact with the air, thus affecting the product quality

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