A chlorine dioxide gas preparation system and preparation method thereof

A chlorine dioxide and chlorine dioxide technology, applied in chlorine oxide and other directions, can solve problems such as affecting safe production, high preparation cost, equipment damage, etc., and achieve the effects of enhanced safety, easy operation and stable operation

Active Publication Date: 2016-01-20
SHENZHEN OUTAIHUA ENG EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest defect of this method is that the preparation cost is high, and, in design or in use, due to factors such as design and improper operation, explosions will be caused, resulting in equipment damage, which directly affects the safety of production.

Method used

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  • A chlorine dioxide gas preparation system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a chlorine dioxide gas preparation system includes a control cabinet, a mixer 10, a gas generator 1 and an aspirator 7; the gas generator 1 is a rotary type, and the inlet of the gas generator 1 is connected to the outlet of the mixer 10 Connection, the outlet end of the gas generator is connected to the inlet of the air extractor 7 through the outlet pipe 6; the outlet end of the gas generator is provided with a water inlet pipe 4 and a pressure sensor 5; the pressure sensor is connected to the control cabinet.

[0031] The above scheme can already complete the preparation of high-purity chlorine dioxide gas, and on this basis, the preferred scheme is given:

[0032] The gas generator 1 comprises a first horizontal pipeline 11, a second horizontal pipeline 12, a first vertical pipeline 13, a second vertical pipeline 14 and a third vertical pipeline 15; the top of the first vertical pipeline 13 and the third vertical pipeline The top of the p...

Embodiment 2

[0034] A method for preparing high-purity chlorine dioxide gas using the chlorine dioxide gas preparation system of embodiment 1, comprising the steps of:

[0035] A. Pretreat the feed liquid and the gas generator: first fill the gas generator 1 with clean water through the water inlet pipe 4, and then mix the sodium chlorite solution with a mass fraction of 8% and the sodium chlorite solution with a mass fraction of 8-9% The hydrochloric acid solution is injected into the static mixer 10 through the sodium chlorite solution delivery pipe 8 and the hydrochloric acid solution delivery pipe 9 according to the molar ratio of 1:2.4 to 1:2.75, and pre-mixed in the static mixer 10;

[0036] B. After the feed liquid is pre-mixed in the static mixer 10, it is injected into the gas generator 1 from the inlet end of the gas generator 1, where it reacts to generate chlorine dioxide gas, and the reaction temperature of the feed liquid in the gas generator 1 is At normal temperature, the r...

Embodiment 3

[0040] A method for preparing high-purity chlorine dioxide gas using the chlorine dioxide gas preparation system of embodiment 1, comprising the steps of:

[0041] A. Pretreat the feed liquid and the gas generator: first fill the gas generator 1 with clean water through the water inlet pipe 4, and then fill the gas generator 1 with 8% sodium chlorite solution and 8% hydrochloric acid solution Inject the static mixer 10 through the sodium chlorite solution delivery pipe 8 and the hydrochloric acid solution delivery pipe 9 according to the molar ratio of 1:2.42, and pre-mix in the static mixer 10;

[0042] B. After the feed liquid is mixed in the static mixer 10, it is injected into the gas generator 1 from the inlet end of the gas generator 1, where it reacts to generate chlorine dioxide gas, and the reaction temperature of the feed liquid in the gas generator 1 is normal temperature , the reaction time is 0.4h; Then chlorine dioxide gas and the reacted feed liquid are extracte...

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PUM

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Abstract

The invention discloses a system for preparing chlorine dioxide. The system comprises a control cabinet, a mixer (10), a gas generator (1) and a gas extractor (7), wherein the gas generator (1) is rotary, an inlet end of the gas generator (1) is connected with an outlet of the mixer (10), and an outlet end of the gas generator (1) is connected with an inlet of the gas extractor (7) through a gas outlet pipe (6); a water inlet pipe (4) and a pressure sensor (5) are arranged on the outlet end of the gas generator (1); the pressure sensor (5) is connected with the control cabinet. The invention further discloses a method for preparing the chlorine dioxide. The system for preparing the chlorine dioxide, which is disclosed by the invention, is simple and convenient to operate, has high safety, and runs stably.

Description

technical field [0001] The invention relates to a gas preparation system and a preparation method thereof, in particular to a chlorine dioxide gas preparation system and a preparation method thereof. Background technique [0002] In my country, research and development of chlorine dioxide gas generators has been carried out since the 1980s, and it has been more than 20 years. The research and development of chlorine dioxide gas generators has been aimed at the preparation method of mixed chlorine dioxide gas from the beginning. Therefore, most of the chlorine dioxide gas generators currently on the market are still based on mixed chlorine dioxide gas generators. host. However, with the development of the economy and the continuous improvement of environmental protection requirements, high-purity chlorine dioxide gas generators can sterilize and disinfect many water bodies, especially for water bodies with special requirements, such as: cyanide removal, nickel removal, and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B11/02
Inventor 石杨陈祥衡崔永顺卫志兵李道红
Owner SHENZHEN OUTAIHUA ENG EQUIP
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