KR20170082335A - Apparatus and Method for The Measurement of Taste and Odor Components - Google Patents

Apparatus and Method for The Measurement of Taste and Odor Components Download PDF

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Publication number
KR20170082335A
KR20170082335A KR1020160001598A KR20160001598A KR20170082335A KR 20170082335 A KR20170082335 A KR 20170082335A KR 1020160001598 A KR1020160001598 A KR 1020160001598A KR 20160001598 A KR20160001598 A KR 20160001598A KR 20170082335 A KR20170082335 A KR 20170082335A
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KR
South Korea
Prior art keywords
unit
hysteresis characteristic
predetermined substance
substance
measuring device
Prior art date
Application number
KR1020160001598A
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Korean (ko)
Inventor
이익재
강창익
양우진
조윤석
서광호
조상선
Original Assignee
주식회사 과학기술분석센타
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Priority to KR1020160001598A priority Critical patent/KR20170082335A/en
Publication of KR20170082335A publication Critical patent/KR20170082335A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—Specially adapted to detect a particular component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0021—Sample conditioning involving the use of a carrier gas for transport to the sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0029—General constructional details of gas analysers, e.g. portable test equipment concerning the detector cleaning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means

Abstract

The present invention relates to a device for measuring a hysteresis component and a method for measuring the hobby component using the same, and more particularly, A pump section, an adsorption tube for adsorbing and concentrating a predetermined substance carried by the carrier gas, a cooling section disposed between the chamber section and the adsorption tube section for removing water contained in the predetermined substance, and a predetermined substance desorbed and transported from the adsorption tube section And a sensor unit for measuring the concentration.
According to the present invention, it is possible to automatically perform the process from the pretreatment process of separating the measurement object and removing the impurities to the process of measuring the concentration using the sensor, without requiring any manpower, There is an effect to obtain the value.
In addition, since the hobby component can be measured by a single device, time and cost required for device management can be reduced.
In addition, it is possible to obtain an accurate measurement value by repeatedly removing moisture and selectively adsorbing a measurement target substance by using a filling substance, and surely removing the impurities mixed in the substance and then measuring.

Description

Technical Field [0001] The present invention relates to a hysteresis measuring device and a hysteresis measuring method using the same,

The present invention relates to a hysteresis measuring apparatus which is generated in wastewater, a river, a sewage treatment plant, and the like, and a method of measuring the hobby component using the apparatus.

Due to urbanization and industrialization, a large amount of water sources are needed, and a large amount of sewage must be treated. In the case of drinking water, an increase in minerals such as nitrogen or phosphorus in water will lead to algae ingesting minerals. When algae are overproduced, a green algae phenomenon occurs and odors such as fishy smell and earthy smell are likely to occur. The smell caused by green tide has a social, psychological and economical effect on human life, and causes civil and social problems.

Geosmin and 2-Methyl-isobormeol (2-Methyl-isobormeol) are the major metabolites of algal blooms. Therefore, by measuring the concentration of the two substances, the degree of the hobby component can be quantitatively analyzed, and the occurrence of the green tide can be predicted as a result.

 However, in order to measure this hysteresis component in the related art, there is a problem that the equipment corresponding to each process such as the equipment for pretreating the sample and the equipment for processing the concentration of the sample are separately provided, so that they must be processed using the manpower in the middle of the process.

In addition, the use of a large number of devices increases the time and cost required for maintenance.

In addition, there is a problem that accurate measurement values can not be obtained if moisture is mixed in the measurement target material collected from the sample.

The present invention has been devised to overcome the above-mentioned problems of the prior art, and it is an object of the present invention to provide a device for automating all processes such as sampling, pretreatment, concentration, and analysis for measuring the hobby component, And to provide the above objects.

In addition, it is possible to measure the hobby component with one integrated device, thereby reducing the time and cost required for maintenance.

It is another object of the present invention to obtain accurate measurement values by performing the step of removing moisture from the collected measurement target material several times.

According to an aspect of the present invention, A chamber part for extracting and separating a predetermined substance preset in the liquid sample into vapor phase; A water pump unit for transferring the liquid sample to the chamber unit; An adsorption tube portion for adsorbing and concentrating a predetermined substance carried by the carrier gas; A cooling unit disposed between the chamber unit and the adsorption tube unit to remove moisture contained in a predetermined substance; And a sensor unit for measuring a concentration of a substance desorbed and transported in the adsorption tube unit.

Here, the chamber may include a bubble generator for generating and injecting bubbles into the transferred liquid sample; And a first heater, wherein the suction tube portion blows air toward the suction tube portion; And a second heater.

The apparatus further includes a helium gas supply unit that is supplied to the sensor unit to stabilize the sensor unit and to move a predetermined material desorbed in the suction tube unit space to the sensor unit.

A nitrogen gas supply unit for cleaning a plurality of connection pipes arranged in the hobby component measuring device and moving a predetermined substance extracted and separated from the chamber part to the adsorption tube part; And a flow controller for controlling a flow rate of the nitrogen gas supply unit.

A third heater for heating the cooling unit; And a fourth heater disposed between the chamber portion and the water pump portion.

The hobby component measuring method using the hobby component measuring device includes a first step of transferring a liquid sample to a chamber part; A second step of extracting and separating a predetermined material in the chamber part into a vapor phase; A third step of transferring the predetermined substance to the cooling section and removing moisture contained in the predetermined substance; A fourth step of adsorbing and concentrating a predetermined substance from which water has been removed on the adsorption pipe; And a fifth step of desorbing and concentrating the concentrated substance and transferring the concentrated substance to the sensor section to measure the concentration.

The second step includes a second step of injecting air bubbles into the liquid sample transferred to the chamber part to increase the separation rate; And a second step of heating the chamber part to separate only a predetermined material.

In addition, the method may further include injecting nitrogen gas in a third step to transfer the predetermined substance to the cooling unit, and injecting nitrogen gas before the fifth step to remove residual moisture in the adsorption tube.

The method may further include injecting helium gas in the fifth step to transfer the predetermined substance to the sensor unit, and stabilizing the sensor unit by injecting helium gas before the first step.

In the present invention, the predetermined substance is at least one of Geosmin and 2-Methyl-isobormeol.

According to the present invention, it is possible to automate the process from the pretreatment process of separating the measurement object and removing the impurities to the process of measuring the concentration using the sensor, thereby obtaining a more accurate result value.

In addition, since the hysteresis component can be measured by a single integrated device, the time and cost required for maintenance can be reduced.

In addition, moisture is removed repeatedly before the third step and the fifth step, and in the fourth step, a substance to be measured is selectively adsorbed by using a filling material, and the impurities mixed in the substance are reliably removed and then measured , An accurate measurement value can be obtained.

1 is a perspective view of a hobby component measuring apparatus according to an embodiment of the present invention;
Fig. 2 is an internal perspective view of the hobby component measuring apparatus of Fig. 1; Fig.
Fig. 3 is a block diagram of the hobby component measuring apparatus of Fig. 1; Fig.
4 is a flowchart of a method for measuring the hobby component according to an embodiment of the present invention.
Figure 5a is a flow diagram of the sample and gas according to the first step of Figure 4;
Figure 5b is a flow diagram of the sample and gas according to the second step of Figure 4;
Figure 5c is a flow diagram of the sample and gas according to the third step of Figure 4;
Figure 5d is a flow diagram of the sample and gas according to the fourth step of Figure 4;
FIG. 5E is a flow chart of the sample and gas according to the fifth step of FIG. 4; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hob component measuring apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of the hobby component measuring apparatus according to an embodiment of the present invention, FIG. 2 is an internal perspective view of the hobby component measuring apparatus of FIG. 1, and FIG. 3 is a configuration diagram of the hobby component measuring apparatus of FIG.

1 to 3, the hobby component measuring apparatus 10 according to the first embodiment of the present invention includes a housing 100 and a chamber 200 for extracting and separating predetermined substances preset in the liquid sample by vapor phase A water pump unit 300 for transferring the liquid sample to the chamber unit 200, an adsorption tube unit 400 for adsorbing and concentrating a predetermined substance carried by the carrier gas, a chamber unit 200 and an adsorption tube unit 400, And a sensor unit 600 for measuring the concentration of a predetermined substance desorbed and transported from the adsorption tube unit 400. The sensor unit 600 may include a sensor unit 600,

In the present invention, the predetermined substances to be measured are geosmin (2-Methyl-isobormeol) and Geosmin (2-Methyl-isobormeol), which predominantly cause hobbies when green tones are generated.

The housing 100 includes a door 110 and an operation unit 120, which can be opened and closed at one side, so that it is not difficult to manage and control the inside of the apparatus.

The water pump unit 300 conveys the liquid sample, which is partially taken out from the water supply outside the apparatus, to the chamber unit 200.

In addition, the chamber unit 200 may include a bubble generator (not shown) for generating bubbles and injecting the bubbles into the liquid sample to increase the separation speed of the geosmin or 2-MIB contained in the transferred liquid sample, And includes a first heater 210.

The chamber part 200 extracts geosmin or 2-MIB from a liquid sample using a different boiling point for each substance. The boiling point of geosmin and 2-MIB is less than 100 ° C, which is the boiling point of water at about 80 ° C, and it is possible to extract the two substances by gas by increasing the temperature of the liquid sample only up to about 80 ° C.

The cooling unit 500 reduces the temperature of the gas composed of geosmin or 2-MIB transferred from the chamber unit 200 to remove the moisture contained in the gas. This is because the lower the temperature at the same pressure, And the saturated vapor concentration curve which is condensed with water drops is applied.

Further, the cooling unit 500 can be implemented using a Peltier effect. The Peltier effect refers to the phenomenon of generating or absorbing heat at the contact surface when current is passed through the contact surface of the dissimilar metal.

The adsorption tube 400 has a cooling fan unit 420 and a second heater 410 that serve to lower the temperature of the adsorption tube 400 heated by blowing toward the adsorption tube 400 in a short time at room temperature .

Specifically, the adsorption pipe section 400 selectively adsorbs and concentrates geosmin or 2-MIB by using a filling material, and the adsorption pipe section 400 is heated by the second heater 410 to obtain a geosmin Or 2-MIB. The second heater 410 also acts to prevent dew condensation that may occur in the suction tube 400.

The sensor unit 600 measures a concentration by disposing a plurality of sensors capable of detecting geosmin or 2-MIB.

The hobby component measuring apparatus 10 includes a third heater 510 for heating the cooling unit 500 to prevent condensation, a second heater 510 disposed between the chamber unit 200 and the water pump unit 300, And a fourth heater 710 for preheating the liquid sample prior to delivering the liquid sample to the second chamber 200.

A nitrogen gas supply unit 730 for cleaning a plurality of connection pipes disposed in the hobby component measuring apparatus and moving the geosmin or 2-MIB extracted from the chamber unit 200 to the adsorption tube unit 400; And a flow regulator 740 for regulating the nitrogen flow rate of the nitrogen gas supply unit 730.

A helium gas supply unit 720 for supplying the helium gas to the sensor unit 600 to stabilize the sensor unit 600 and to move the geosmin and 2-MIB desorbed in the space inside the absorption pipe unit 400 to the sensor unit 600; ).

The hobby component measuring apparatus 10 includes a direction switching valve 750 for changing the direction of the sample and the carrier gas. The directional control valve 750 can use a 4 port-2way valve and is located at the intersection of the pipes connecting the sensor unit 600, the cooling unit 500, the chamber unit 200, and the outlet formed in the housing 100 have. Further, the directional control valve 750 is provided with a heater for preventing condensation.

The hobby component measuring apparatus 10 further includes a vacuum pump 760 to control the amount of gas flowing through the pipe.

When the hobby component measuring device 10 as described above is used, all processes such as sample collection, preprocessing, concentration, and analysis for the measurement of the hobby component are automated by a single device, The time and cost required for device management can be reduced.

FIGS. 4 to 5E illustrate a method of measuring the hobby component according to an embodiment of the present invention. FIG. 4 is a flowchart of a method of measuring a hobby component according to an embodiment of the present invention. FIGS. 5A to 5E are flowcharts 1 is a flow chart of a sample and a gas according to the first to fifth steps of this hobby component measurement method according to the embodiment.

As shown in these drawings, the method for measuring a hobby component according to an embodiment of the present invention includes a first step of transferring a liquid sample to a chamber part 200, A third step of transferring the predetermined substance to the cooling unit 500 and removing moisture contained in the predetermined substance, a third step of adsorbing and concentrating the moisture-removed predetermined substance to the absorption pipe unit 400, And a fifth step of desorbing the concentrated substance and transferring the concentrated substance to the sensor unit 600 to measure the concentration.

Before performing the first through fifth steps, helium gas is supplied to the helium gas supply unit 720 to stabilize the sensor unit. In addition, nitrogen gas is supplied to the nitrogen gas supply unit 730 to clean the pipe, and a preparatory step is carried out to make the apparatus suitable for sample measurement.

In the first step, the liquid sample collected from the tap water outside the hysteresis measurement device 10 flows into the chamber part 200 through the water pump part 300. 5 (a), the flow path of the helium gas and the nitrogen gas is the same as that of the preparation step, the nitrogen gas serves as the pipe cleaning, and the helium gas serves to stabilize the sensor unit 600 do.

The second step further includes a second step of injecting bubbles into the liquid sample transferred to the chamber part 200 and a second step of heating the chamber part 200 to separate only a predetermined material. In step 2-1, bubbles are injected through a bubble generator (not shown) provided in the chamber part 200 to increase the separation rate of a predetermined substance. In the step 2-2, the liquid sample is heated by the first heater 210, and the liquid sample is extracted by using a different boiling point of geosmin or 2-MIB and water. As shown in Fig. 5 (b), the flow path and role of helium gas and nitrogen gas in this step are the same as the previous steps.

The third step is a step of transferring the geosmin or 2-MIB to the cooling unit 500 and removing water contained in the geosmin or 2-MIB, When the Slim or 2-MIB is transferred, all of the sample remaining in the chamber part 200 is evacuated. 5 (c), at this stage, the flow path of the helium gas and the nitrogen gas is the same as the previous steps, but the nitrogen gas moves the material extracted from the chamber part 200 to the cooling part 500 It acts as a carrier gas.

In the fourth step, a 4-1 step of adsorbing and concentrating the geosmin or 2-MIB having moisture removed in the cooling unit 500 selectively in the adsorption tube unit 400 is performed to remove impurities contained in geosmin or 2-MIB . When the step 4-1 is completed, a step 4-2 of removing water remaining in the piping and the adsorption tube unit 400 using nitrogen gas is performed. At this time, the helium gas is continuously supplied to stabilize the sensor unit 600.

In the fifth step, the adsorption pipe section 500 is heated by the second heater 410 to desorb the adsorbed geosmin and 2-MIB, and the adsorbed gas is transferred to the sensor section 600 to measure the concentration. At this time, as shown in FIG. 5E, the control position of the directional control valve 750 is changed to change the flow path of the nitrogen gas and the helium gas. At this time, the helium gas acts as a carrier gas for moving the material from the absorption tube unit 500 to the sensor unit 600.

By using the concentration value of the geosmin or 2-MIB obtained here, it is possible to estimate the occurrence of green tide and to measure this hobby component.

After the first to fifth steps are completed, the cooling fan unit 420 is blown toward the heated adsorption tube unit 400 to allow the temperature to drop to room temperature, And the helium gas is supplied to stabilize the sensor unit 600.

Also, during the entire process, the amount of nitrogen supplied from the nitrogen gas supply unit 730 is controlled by the flow controller 740, and the amount of gas flowing through the pipe is controlled by the vacuum pump 760.

As described above, moisture is removed repeatedly from the third-stage cooling unit 500 and the fourth-stage absorption pipe unit 400, and the material is selectively adsorbed by using the filling material, so that the impurities mixed in the material can be reliably removed have.

In addition, by measuring with one device, there is no risk of contamination of the sample due to external influences in transferring the sample to another device, and accurate measurement values can be obtained.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be illustrative of the invention and are not to be construed as limiting the invention. The technical idea of the present invention, and the technical ideas of the fundamental technology are all included in the scope of the present invention.

10: This hobby component measuring device
100: housing 200: chamber part
210: first heater 300: water pump unit
400: absorption pipe portion 410: second heater
420: cooling fan unit 500: cooling unit
510: Third Heater 600: Sensor Unit
710: fourth heater 720: helium gas supply part
730: Nitrogen gas supply unit 740: Flow regulator
750: Direction switching valve 760: Vacuum pump

Claims (13)

A chamber part for extracting and separating a predetermined substance preset in the liquid sample into vapor phase;
A water pump unit for transferring the liquid sample to the chamber unit;
An adsorption tube portion for adsorbing and concentrating a predetermined substance carried by the carrier gas;
A cooling unit disposed between the chamber unit and the adsorption pipe to remove moisture contained in a predetermined substance; And
A sensor unit for measuring a concentration of a predetermined substance desorbed from the adsorption tube;
And the hysteresis measuring device.
The method according to claim 1,
The chamber part may include: a bubble generator that generates and injects bubbles into the transferred liquid sample; And
A first heater for heating the liquid sample transferred into the chamber portion;
Further comprising a hysteresis characteristic measuring device for measuring the hysteresis characteristic of the hysteresis characteristic measuring device.
The method according to claim 1,
Wherein the adsorption tube portion comprises: a cooling fan unit for blowing air toward the adsorption tube portion; And
A second heater for heating the adsorption tube portion;
Further comprising a hysteresis characteristic measuring device for measuring the hysteresis characteristic of the hysteresis characteristic measuring device.
The method according to claim 1,
A helium gas supply unit 720 supplied to the sensor unit to stabilize the sensor unit and to move a predetermined material desorbed in the inner space of the absorption pipe unit to the sensor unit;
Further comprising a hysteresis characteristic measuring device for measuring the hysteresis characteristic of the hysteresis characteristic measuring device.
The method according to claim 1,
A nitrogen gas supply unit for cleaning a plurality of connection pipes arranged in the hobby component measuring apparatus and moving a predetermined substance extracted and separated from the chamber unit to the adsorption tube unit; And
A flow controller for regulating a flow rate of the nitrogen gas supply unit;
Further comprising a hysteresis characteristic measuring device for measuring the hysteresis characteristic of the hysteresis characteristic measuring device.
The method according to claim 1,
A third heater for heating the cooling unit; And
A fourth heater disposed between the chamber portion and the water pump portion;
Further comprising a hysteresis characteristic measuring device for measuring the hysteresis characteristic of the hysteresis characteristic measuring device.
The method according to claim 1,
Wherein the predetermined substance is at least one of Geosmin and 2-MIB (2-Methyl-isobormeol).
A first step of transferring the liquid sample to the chamber part;
A second step of extracting and separating a predetermined material in the chamber part into a vapor phase;
A third step of transferring the predetermined substance to the cooling section and removing moisture contained in the predetermined substance;
A fourth step of adsorbing and concentrating a predetermined substance from which water has been removed on the adsorption pipe; And
A fifth step of desorbing the concentrated substance and transferring the concentrated substance to the sensor unit to measure the concentration;
Wherein the hobby component measuring method comprises the steps of:
The method of claim 8,
In the second step,
A second step of injecting air bubbles into the liquid sample transferred to the chamber part to increase the separation rate; And
A step 2-2 of heating the chamber part to separate only a predetermined material;
Further comprising the steps of:
The method of claim 8,
In the fourth step,
(4-1) selectively adsorbing only a predetermined substance;
A fourth step of injecting nitrogen gas to remove residual moisture from the adsorption pipe;
Further comprising the steps of:
The method of claim 8,
In the third step, nitrogen gas is injected to transfer the predetermined substance to the cooling unit,
A sixth step of injecting nitrogen gas to remove the residue remaining in the pipe;
Further comprising the steps of:
The method of claim 8,
Stabilizing the sensor unit by injecting helium gas before the first step;
In the fifth step, helium gas is injected to transfer a predetermined substance to the sensor unit,
Further comprising the steps of:
The method according to any one of claims 8 to 12,
Wherein the predetermined substance is at least one of Geosmin and 2-MIB (2-Methyl-isobormeol).
KR1020160001598A 2016-01-06 2016-01-06 Apparatus and Method for The Measurement of Taste and Odor Components KR20170082335A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190117081A (en) * 2018-04-06 2019-10-16 주식회사 과학기술분석센타 Odorous susbstances removal system
CN114527217A (en) * 2022-02-24 2022-05-24 山东星菲化学有限公司 Preparation method of quality control standard substance in adsorption tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190117081A (en) * 2018-04-06 2019-10-16 주식회사 과학기술분석센타 Odorous susbstances removal system
CN114527217A (en) * 2022-02-24 2022-05-24 山东星菲化学有限公司 Preparation method of quality control standard substance in adsorption tube

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