Apparatus for removing trace acidic gas in indoor air, and method and application thereof

A technology for indoor air and acidic gas, applied in the field of air purification, can solve the problems of difficult formation of water mist, excessive air discharge, loud noise, etc., and achieve the effect of fine and uniform water column, efficient purification function, and large purification volume

Inactive Publication Date: 2012-12-19
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many patents related to the absorption method to purify indoor air. The Chinese invention patent "Environmental Protection Air Purifier" (application number 99240594.7, publication number CN2418941) is mainly used in streets, highways and other places, with high noise and high energy consumption.
The Chinese invention patent "Spray Air Purifier" (application number 00231326.X, publication number CN2413780) is characterized by the fact that water mist is difficult to form, and the small amount of water mist formed is easily carried out by the gas and the purification is not thorough
In addition, in the process of spraying and purifying the air, the direction of the air and the degree of divergence have not been paid attention to. Generally, the direction o

Method used

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  • Apparatus for removing trace acidic gas in indoor air, and method and application thereof
  • Apparatus for removing trace acidic gas in indoor air, and method and application thereof
  • Apparatus for removing trace acidic gas in indoor air, and method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example 1

[0054] Such as figure 1 As shown, a device for removing trace acid gases in indoor air includes a spray bed reaction system, an aerodynamic system and an absorption liquid circulation system.

[0055] The spray bed reaction system includes a bed cylinder (26) made of stainless steel, flange a (3), flange b (6) and flange c (12). The bed cylinder (26) is a hollow column Body, including cylinder cavity, cylinder body, cylinder bottom and cylinder top, the cylinder cavity inner diameter is 120mm, the cylinder body height is 300mm, the bed cylinder body (26) wall thickness is 3mm, the cylinder top open end is integrated with the flange b(6) Connection, the open end of the cylinder bottom is integrally connected with the flange piece c (12); the cylinder cavity is set at the disc (30) at a height of 50mm from the cylinder bottom, and formed between the disc and the cylinder bottom flange piece c (12) In the cavity, a circular hole with a diameter of 80mm is provided ...

Example Embodiment

[0060] Example 2

[0061] (1) Install the device for removing trace acid gas from indoor air as described in Example 1 in a space with a volume of 30m 3 Room, the gas exchange rate between indoor and outdoor is 5m 3 / h, acidic pollutants are mainly SO 2 And NO 2 , The initial SO2 and NO2 concentrations are 100ppb and 100ppm, respectively, and the acid gas concentration is detected by SO2 and NO2 concentration monitors;

[0062] (2) Add 20g of sodium carbonate powder through the absorption liquid replenishment port (2) of the device described in step (1), and then add 6L of water, the initial concentration of the absorption liquid is 0.03mol / L;

[0063] (3) Turn on the machine and energize the fan (10) and the submersible pump (18), where the speed of air passing through the cylinder cavity (that is, the amount of purified air) is 30m 3 / h; The flow rate of absorbing liquid sprayed from the nozzle of the liquid shower is 1600L / h.

[0064] Indoor NO after starting for 1 hour 2 The conten...

Example Embodiment

[0065] Example 3

[0066] (1) Install the device for removing trace acid gas from indoor air as described in Example 1 in a space with a volume of 60m 3 Room, the gas exchange rate between indoor and outdoor is 5m 3 / h, acidic pollutants are mainly SO 2 And NO 2 , Initial SO 2 And NO 2 The concentrations of are 100ppb and 100ppm, and the concentration of acid gas is detected by SO2 and NO2 concentration monitors;

[0067] (2) Add 20g of sodium carbonate powder through the absorption liquid replenishment port (2) of the device described in step (1), and then add 6L of water, the initial concentration of the absorption liquid is 0.03mol / L;

[0068] (3) Turn on the machine and energize the fan (10) and the submersible pump (18), where the speed of air passing through the cylinder cavity (that is, the amount of purified air) is 40m 3 / h; The flow rate of absorbing liquid sprayed from the nozzle of the liquid shower is 1600L / h.

[0069] After booting for 2 hours, NO 2 The content is 30.94pp...

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Abstract

The invention discloses an apparatus for removing trace acidic gas in indoor air, and a method and an application thereof. The apparatus provided by the invention comprises a spray bed reaction system, an air power system and an absorption liquid circulating system, and the three systems are integrally connected, wherein the spray bed reaction system comprises a bed cylinder, the air power system comprises a fan, an air inlet pipe and an air outlet, and the absorption liquid circulating system comprises a liquid spray thrower, an absorption liquid circulating pipe, an absorption liquid storage tank and a submersible pump. After starting the fan and the submersible pump of the apparatus, air passes through cylinder chamber of the bed cylinder from bottom to top, and meanwhile contacts with the absorption liquid sprayed from top to bottom, so that the air is absorbed and purified. The apparatus for removing the trace acidic gas in the indoor air has advantages of compact structure, small volume, low noise, easy installation, low energy consumption and excellent purifying effect.

Description

technical field [0001] The invention belongs to the field of air purification, and in particular relates to a device for removing trace acid gases in indoor air, a method and an application thereof. Background technique [0002] Most people spend 80% of their time indoors, and the degree of indoor air pollution is 5-10 times greater than that of outdoors. The main indoor acid pollutant is SO 2 and NO 2 , SO in indoor air 2 It mainly comes from the incomplete combustion of coal and tobacco. A large number of epidemiological investigations have shown that indoor SO 2 The concentration is significantly higher than that of gas households, the kitchen is higher than the bedroom, the winter is higher than the summer, and the north is higher than the south. SO 2 It is highly pungent and irritating to the conjunctiva and upper respiratory tract mucosa, when SO 2 Concentration at 0.9mg / m 3 It can be smelled by most people when it is absorbed by the human body, and it will mainl...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/60F24F6/14
Inventor 解东来温明霞
Owner SOUTH CHINA UNIV OF TECH
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