KR200225296Y1 - sampler for gaseous matter in ambient air - Google Patents

Abstract

The present invention relates to a collector for collecting gaseous substances present in the atmosphere. In particular, in the gaseous substance collection method using a solvent (absorbent liquid), the collector is designed to collect the gaseous substances in the atmosphere using a single collector. It relates to a component flow meter (21, 22) for passing a predetermined amount of a sample gas, which is a gaseous substance in the air sucked through the collecting pipe 11 having a filter paper 12 inside the housing 10 of the collector ( 23) and a plurality of collection bottles (31, 32, 33) for gaseous substance components in which two bottles having a solvent for reacting or absorbing and collecting the gas sample passed through the component flow meter are collected. It is a very useful design that can be installed at the same time to collect various gaseous substances mixed in the air.

Description

Sampler for gaseous matter in ambient air

The present invention relates to a collector for collecting gaseous substances present in the atmosphere, and more particularly, to an improved collector for collecting gaseous substances in the atmosphere using a single collector in a gaseous substance collection method using a solvent. .

While the industrial society is enriched by the high industrial society, environmental destruction by various pollutants generated by the industry is occurring extensively.

Air pollution caused by gaseous substances that can cause various diseases in the human body is a serious situation of environmental pollution occurring as described above.

In order to prevent the air pollution, the gaseous substances contained in the air (air) are collected by a collector to measure the degree of pollution of the air by the gaseous substances, and a countermeasure is established according to the measurement result.

As described above, the collection method for measuring the pollution level of air by sampling (gathering) gaseous substances in the air includes various methods such as a direct collection method, a container collection method, a solvent collection method, a solid collection method, a low temperature condensation method, and a collection site. Although there is a method of collecting a sample, generally, a solvent collection method is widely used.

In general, a widely used solvent collector is a structure capable of sampling only one of the gaseous substances mixed in the atmosphere (air), so that various gaseous substances mixed in the atmosphere (air) can be collected at the same point. Not only does it have difficulty in collecting gaseous substances, which requires the use of each collector separately for sampling at the same time, but it is not efficient in time and economically, and it requires many manpower when transporting multiple collectors at the same time. Had

The present invention devised to solve the disadvantages of the conventional collector as described above, and the flow rate for each component to pass a predetermined amount of the sample gas, which is a gaseous substance in the air sucked through the collecting pipe having a filter paper inside the housing of the collector, Two bottles of gaseous substances, each having a solvent that reacts or absorbs and collects a gas sample passed through a component flow meter, are provided with a plurality of collection bottles for each component of gaseous substances to simultaneously collect various gaseous substances mixed in the air. To provide a gaseous material collector in the atmosphere that can be collected.

The object of the present invention is a collector for collecting gaseous substances (sulfite gas, nitrogen oxides, ozone) mixed in the air in the atmosphere and measuring the pollution level of the air. A housing having a collecting pipe having a filter paper for filtering the suspended solids (dust, etc.) installed at an upper portion thereof; A plurality of components installed inside the enclosure and connected to a collection tube by a tube, and the gas flow material passing through the flow rate meter for each component and the gaseous material passed through the flow rate meter for each component by a predetermined amount to pass the gaseous material in the air by a certain amount or excessively A bypass flow meter that adjusts the volume when a large quantity is passed; Each bottle is connected to each of the flowmeters for each component, and two bottles containing appropriate amounts of solvents reacting or absorbing each component (sulfite gas, nitrogen oxide, and ozone) to enable the collection (sampling) of the gaseous substances by component. A collection bottle for each gaseous substance component installed in a pair; An integrating flow meter measuring the total amount of gaseous substance in the air collected by the collector by being connected to the vifuse flowmeter and the collecting bottles for each gaseous substance component; It is achieved by being connected to the totalizing flowmeter and tube, and configured by a suction pump which is driven by the energy of the battery to allow air to be sucked through the above-described flow meter for each component and the bypass valve and the collecting bottle for each gaseous substance component. .

1 is a plan view of the gaseous material collector in the atmosphere according to the present invention.

Fig. 2 is a front view of Fig. 1 as seen from the A-A direction.

3 is a side view of FIG. 2;

4 is a front view seen from the line B-B in FIG.

Fig. 5 is a side view of Fig. 3 viewed from line C-C.

※ Explanation of symbols used in the main part of the drawing ※

10: enclosure 11: collection tube

12: filter paper 21, 22, 23: flow meter for each component

24: bypass flow meter 31,32,33: collection bottle for each gaseous substance component

40: accumulated flow meter 50: suction pump

60: battery

The configuration of the present invention is a collector for collecting gaseous substances (sulphite gas, nitrogen oxides, ozone) mixed in the air in the air to measure the pollution of the air,

The collector 10 of the collector is provided with a collecting pipe 11 having a filter paper 12 for filtering air suspended in the air and filtering suspended matter (dust, etc.) entrained in the sucked air. have.

Inside the enclosure 10, the flow meter for each component (21, 22, 23), the bi-flux flow meter (24), the collecting bottles (31, 32, 33) for the gaseous substance components, the total flow meter (40) It has a suction pump 50 which draws in air to pass through.

The inside of the enclosure 10 is connected to the collecting tube 11 by a tube, so that the flow meter for each component to pass a certain amount of gaseous substances in the air through the collecting bottle for each gaseous substance component

(21) (22) (23) are installed in parallel and at the same time a bypass flowmeter (24) is provided to adjust the amount when the gaseous substance passed through the component flowmeter is lower than the reference value or excessively large amount is passed. have.

Bottles (31) (32) (33) for collecting gaseous substances by a number corresponding to the component flow meter while being connected to the tube in a state in series with respect to the component flow meters (21) (22) and (23). These bottles are installed in parallel, and two bottles containing a proper amount of solvents reacting or absorbing each component (sulfite gas, nitrogen oxide, ozone) are installed in a set so that gaseous substances can be collected (sampled) by each component. have.

Accumulation flowmeter 40 is connected to the bifuse flowmeter 24 and the gaseous material-specific collection bottles 31, 32, 33 by a tube, and measures the total amount of gaseous material in the air.

The integrating flowmeter 40 is provided with a suction pump 50 is connected by a tube, the suction pump 50 is driven by the energy of the battery 60 so that the air flow rate for each component (21, 22) (23) and is provided so that it can be sucked through the via waste flow meter 24 and the gaseous substance collecting bottles 31, 32, 33.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a plan view of a gaseous material collector in the air according to the present invention, FIG. 2 is a front view of FIG. 1 viewed from the A-A direction, and FIG. 3 is a side view of FIG.

FIG. 4 is a front view seen from the line B-B of FIG. 2, and FIG. 5 is a side view seen from the line C-C of FIG.

As shown, by using the gaseous material collector in the air according to the present invention, the air is collected by collecting the gaseous substances contained in the atmosphere, such as sulfur dioxide, nitrogen oxides, ozone, as well as formaldehyde in the underground living air. The degree of contamination by gaseous substances is measured.

When collecting the gaseous material, the suction pump 50 operated by the energy of the battery 60 is operated while the collector is transported to an area (place) where the gaseous material is to be collected.

When the suction pump 50 is operated, air is sucked into the collector through the collecting pipe 11 installed at the upper portion of the housing 10, and at this time, the filter paper installed in the collecting pipe 11.

By (12), the suspended matter in the air is sucked in the removed state.

The air sucked into the collector by the suction pump 50 is a flow meter for each component (21, 22)

Only an appropriate amount is supplied by 23, and the air passing through the component flowmeters 21, 22, 23 varies depending on the gaseous material to be collected and the sampling time.

For example, when collecting sulfurous acid gas for 24 hours, the air passes at a flow rate of 0.2 l / min, and at 30 minutes or 1 hour, the air passes at a flow rate of 0.5 to 1 l / min.

When nitrogen oxide is collected for 24 hours, air passes at 20 l / min flow rate, while ozone passes air at 30 l / min flow rate for 30 minutes.

The air that has passed through the component-specific flowmeters 21, 22 and 23 is moved to the sampling bottles 31, 32 and 33 for the gaseous substance components.

The gaseous substances in the air that are moved from the gaseous substance-specific collection bottles 31, 32, 33 are different solvents contained in the gaseous-component components-collecting bottles 31, 32, 33. That is, it is collected by a solvent that reacts or absorbs sulfur dioxide, nitrogen oxides, and ozone.

Solvents that react with or absorb gaseous substances in the air are used to completely absorb the target gas and keep it stable.

The solvent (absorption liquid) contained in the collecting bottles 31, 32 and 33 for each gaseous substance component and reacting according to the gaseous substance will be described as follows.

1) As a solvent that reacts or absorbs sulfur dioxide, 0.04M potassium tetrachloride is used, and when collecting sulfur dioxide for 24 hours, 50 ml is filled in a sampling bottle 31 for each gaseous substance component, and 30 minutes. 10 ml is appropriate for the collection time of 1 hour.

As described above, the sulfurous acid gas in the air is absorbed by the solvent (absorption liquid), that is, the 0.04 M mercury tetrachloride solution, filled in the sampling bottle 31 for each gaseous substance component.

The 0.04M mercury potassium tetrachloride absorbed as mentioned above forms a mercury sulfite dichloride mercury dye compound and is in a very safe state.

Samples collected as described above can be stored at 5 ° C. for 30 days.

2) As a solvent that reacts or absorbs nitrogen oxides, 0.1 N sodium hydroxide solution is used, and when the nitrogen oxides are to be collected for 24 hours, about 50 ml is filled in the collecting bottle 32 for each gaseous substance component.

As described above, the nitrogen oxide is absorbed by the 0.1N sodium hydroxide solution filled in the sampling bottle 32 for each gaseous substance component, thereby changing to sodium nitrite solution.

3) Alkaline potassium iodide solution is used as a solvent that reacts or absorbs to ozone, and each of two gaseous components is filled with 30 ml of a collection bottle 33, and then filled with water to make 75 ml in total.

The ozone absorbing liquid simply absorbs the target gas.

The collection using a collector for collecting gaseous substances as described above is not limited to the above-described embodiment, and the solvents that are reacted or absorbed with other gaseous substances in the collecting bottles 31, 32 and 33 for each gaseous substance component. You can also take gaseous substances with different properties.

As described above, when the amount of air supplied to the collecting bottles 31, 32 and 33 for each gaseous substance component is less than or greater than the reference value, the bypass flow meter 24 is used. The inspector operates to allow the appropriate amount of air to be supplied to the component flowmeters 21, 22, 23.

On the other hand, the bypass flow meter 24 moves the remaining air after passing through the flowmeters 21, 22 and 23 for each component to the integration flowmeter 40.

The cumulative flow meter 24 measures the total amount of gaseous substances in the air drawn into the collector, that is, the amount including the gaseous substances collected in the collecting bottles 31, 32, 33 for each gaseous substance component.

Referring to the analysis method of the gaseous material collected as described above is as follows.

Method for the analysis of sulfur dioxide.

Absorption of sulfurous acid into the potassium tetrachloride solution results in the formation of mercury disulfide dichloride compounds, which react with paralojaniline and formaldehyde to form a dark colored paralojaniline ethylphonic acid.

The developed solution is to measure the absorbance using an absorbance photometer, and the concentration of sulfur dioxide in the atmosphere is determined by the calibration curve.

Method of analysis of nitrogen oxides.

In sodium hydroxide solution, atmospheric nitrogen dioxide is converted to sodium nitrite solution.

At this time, the produced nitrite ions are colored with a color developing reagent, sulfonylamide, naphthyl ethylenediamine, and diacid, and the absorbance is measured. Then, the concentration μgNO / ml in the sample solution is obtained according to the calibration curve.

Analysis method of ozone.

When a small amount of oxidant present in the atmosphere is absorbed into an alkaline potassium iodide solution and acidified to pH 3.8 with acetic acid, iodine corresponding to a large amount of oxidant is liberated.

This free iodine is calibrated by measuring absorbance at a wavelength of 352 mm.

On the other hand, it is good to replace the filter paper 12 when the float becomes visible enough to be identified.

The present invention as described above is not limited to the preferred embodiment of the above-described characteristics, anyone of ordinary skill in the art to which the subject innovation belongs without departing from the gist of the present invention claimed in the claims will be able to implement various changes. .

As described above, the gaseous material collector in the atmosphere according to the present invention is capable of collecting one or more gaseous materials by using a single collector of various gaseous substances mixed in the atmosphere (air). Increased efficiency; Secondly, by collecting various gaseous materials with one collector, it is possible to prevent the loss of raw materials for producing each collector; Third, it is possible to collect several gaseous substances with one collector, which is a very useful design that can reduce the manpower loss caused by the collector transport.

Claims (1)

In the collector for collecting the gaseous substances (sulphite gas, nitrogen oxides, ozone) mixed in the air in the air to measure the pollution of the air, Enclosure in which the collection pipe 11 which has the filter paper 12 which filters the suspended matter (dust, etc.) which the air | atmosphere in the air is sucked in and is entrained in the air to be sucked in is installed in the upper part 10; A plurality of component flowmeters 21 are installed in the housing 10 and connected to the collecting tube 11 by a tube, and allow a certain amount of gaseous substances in the air to pass through for each component. (22) (23) and a bypass flowmeter 24 for adjusting the amount of gaseous substances passed through the component-specific flowmeters when they pass below a reference value or when an excessively large amount is passed; It is connected to each of the flowmeters 21, 22 and 23 for each component by a tube, and reacts or absorbs with each component (sulfite gas, nitrogen oxide, and ozone) to enable the collection (sampling) of the gaseous substances by component. A collection bottle (31) (32) (33) for each gaseous substance component in which a proper amount of a solvent is contained so that two bottles are formed in a pair; An integrating flowmeter 40 which is connected to the vifux flowmeter 24 and the gaseous substance-specific sampling bottles 31, 32, 33 to measure the total amount of gaseous substance in the air collected by the collector; It is connected to the totalizer flowmeter 40 and the tube, and driven by the energy of the battery 60, the air flows by the above-described component flowmeters 21, 22, 23 and the bifuse flowmeter 24 and gaseous substance components Suction pump to be sucked through the collecting bottles (31) (32) (33) A gaseous material collector in the atmosphere, characterized by comprising (50).