A photocatalytic chlorination reaction device

Abstract

The utility model discloses a kind of photocatalytic chlorination's reaction device, belong to chemical reaction equipment technical field, including reaction kettle, temperature sensor, pressure sensor and charging port are integrated in the top of reaction kettle;Reaction kettle inner chamber bottom center position is installed chlorine distribution pipe, chlorine distribution pipe adopts annular porous structure, and several air holes are evenly distributed on the pipe wall of chlorine distribution pipe;Three groups of optical fiber lamps in equilateral triangle distribution are installed in the top of reaction kettle inner chamber, and inner layer quartz tube and outer layer quartz tube are sequentially sleeved on the main part of optical fiber lamp, and closed cavity is formed between two layers of quartz tube, and nitrogen inlet and nitrogen outlet are provided on cavity. The reaction device provided by the utility model can solve the problem of short service life of traditional catalytic light source, poor heat dissipation, improve reaction control precision and product purity, and reduce environmental pollution.

Claims

1. A photocatalytic chlorination reaction apparatus, comprising a reaction vessel (1), characterized in that: The top of the reactor (1) is equipped with a temperature sensor (2), a pressure sensor (3) and a feed port (16). A chlorine distribution pipe (4) is installed at the center of the bottom of the inner cavity of the reactor (1). The chlorine distribution pipe (4) adopts an annular porous structure and has several pores (40) evenly distributed on the pipe wall. The top of the inner cavity of the reactor (1) is equipped with three sets of fiber optic lamps (5) arranged in an equilateral triangle. The main body of the fiber optic lamp (5) is fitted with an inner quartz tube (6) and an outer quartz tube (7) in sequence. A closed cavity is formed between the two quartz tubes. A nitrogen inlet (8) and a nitrogen outlet (9) are provided on the cavity.

2. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The feed port (16) is connected to the raw material storage tank through a pipeline. A raw material feed pump (23) and a raw material flow meter (22) are installed on the pipeline. A nitrogen replacement interface is provided on the side wall of the feed port (16).

3. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The inlet end of the chlorine distribution pipe (4) is connected to the chlorine flow meter (21) through a pipeline. The chlorine flow meter (21) is a rotor flow meter.

4. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The fiber optic lamp (5) is connected to the fiber optic lamp host (10) outside the reactor (1) via a line. The aluminum alloy shell of the fiber optic lamp host (10) has two axial cooling fans built in and works with the temperature monitoring module.

5. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The main body of the reactor (1) is provided with a jacket (11). A circulating water inlet (12) is provided on one side of the lower part of the jacket (11), and a condensate outlet (15) is provided on the other side of the lower part. A circulating water outlet (13) is provided on one side of the upper part of the jacket (11), and a steam inlet (14) is provided on the other side of the upper part.

6. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The reactor (1) is equipped with a tail gas outlet at the top. The tail gas outlet is connected to the first-stage condenser (17) and the second-stage condenser (18) in sequence through a pipeline. Both the first-stage condenser (17) and the second-stage condenser (18) are shell-and-tube heat exchangers. The condensate outlets of the two condensers are collected into the collection tank (19) through pipelines.

7. The photocatalytic chlorination reaction apparatus as described in claim 6, characterized in that: The bottom outlet of the collection tank (19) is connected to the top of the reactor (1) through a reflux pipe. The reflux pipe is equipped with a one-way valve and a U-shaped bend (20). The non-condensable gas outlets of the first-stage condenser (17) and the second-stage condenser (18) are connected to the tail gas treatment system through pipes.

8. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The reactor (1) is a glass-lined reactor.

9. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The temperature sensor (2) is a platinum resistance type, and the probe extends into the material inside the vessel.

10. The photocatalytic chlorination reaction apparatus as described in claim 1, characterized in that: The pressure sensor (3) is a diffused silicon type and is installed in the gas phase space.

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