KR101466593B1 - Apparatus for air sampling - Google Patents

Abstract

According to the present invention, a sample capturing apparatus provides high reliability as there is no time gap among samples collected due to the capability of capturing formaldehyde in the air and volatile organic compound at the same time and capturing one of the formaldehyde in the air and volatile organic compound. The sample capturing apparatus includes a case (10); a first module and a second module (20) (30) which are installed in the case (10) and capture different samples in the air; a pump absorbing the air (40); a sensor module (50); a storing module (60) which stores data detected by the sensor module (50); and a control unit (70).

Description

Apparatus for air sampling

The present invention relates to a sample collecting apparatus, and more particularly, to a sample collecting apparatus capable of simultaneously collecting formaldehyde and volatile organic compound samples in the air.

Formaldehyde is a colorless and irritating chemical substance that causes sick house syndrome. It is mainly absorbed through inhalation and skin contact. It is a stimulant of eyes and respiratory system and causes primary irritation and allergic dermatitis, skin disease or inflammation It is a substance that is likely to cause cancer at high concentrations.

Volatile organic compounds are collectively called photochemical oxidants by generating photochemical oxidants such as ozone and PAN, which are easily evaporated into the atmosphere due to high vapor pressure and generate nitrogen oxides and other photochemical reactions in the air. The volatile organic compounds are carbon monoxide, carbon dioxide, Carbon compounds other than carbonic acid, metallic carbonates and ammonium carbonate are compounds which participate in chemical reactions in the atmosphere. In Korea, the content of formaldehyde is regulated by the product environmental regulation, and the regulations related to volatile organic compounds are regulated by the Ministry of Environment notification 1998-77. Conventional formaldehyde and volatile organic compounds were collected by collecting the TENAX Tube and DNPH Cartridge in the tube hose as an adsorption tube type that the operator collects the sample in the field with the equipment of individual collection function. This method was inconvenient to use, and there were inconveniences of carrying up to three equipments (TENAX Tube for Volatile Organic Compound, DNPH Cartridge for Formaldehyde, TEDLAR Bag Sampler for Complex Odor) respectively.

In addition, TENAX Tube and DNPH Cartridge collecting equipment are used for individual sampling, so there is a problem that the atmospheric conditions such as sampling start time, temperature, and atmospheric pressure of each sample are different from each other. There is a problem that the equipment purchase cost is high.

Korean Patent No. 10-0659158 Korean Registered Utility Model 20-0467050

An object of the present invention is to provide a sample collecting apparatus capable of simultaneously collecting formaldehyde and volatile organic compound samples in the air.

The present invention relates to a case (10); First and second collecting modules 20 and 30 installed in the case 10 to collect different samples in the air; A pump 40 for sucking air so that the first and second collection samples in the air pass through the first and second collection modules 20 and 30; A sensor module (50) for sensing the air environment at the time of collecting each sample; A storage module (60) for recording sensed data in the sensor module (50); And a controller (70) for controlling the pump (40), the sensor module (50), and the storage module (60).

The first collecting module 20 includes a first collecting body 22 installed inside the case 10 and connected to the pump 40; And a first cartridge (80) coupled to the first collecting body (22) and collecting a sample in the air, wherein the first cartridge (80) is formed on the first collecting body (22) A first discharge unit 24 formed in the first collecting body 22 and connected to the first suction unit 23 so as to allow air to flow therethrough, a first discharge unit 24 connected to the first suction unit 23, And a second collecting passage (25) for guiding air by connecting the first discharging portion (24) to the first discharging portion (23) (Not shown).

The second collecting module (30) includes a second collecting body (32) installed inside the case (10) and connected to the pump (40). And a second cartridge (90) coupled to the second collecting body (32) and collecting a sample in the air, wherein the second collecting module (30) is formed in a second collecting body (22) A second discharge port 34 formed in the second collecting body 32 and connected to the second suction port 33 so as to allow air to flow therethrough, A second collecting passage 35 for guiding air by connecting the second suction portion 33 and the second discharge portion 34 to each other and a second collecting passage 35 disposed on the inner peripheral surface of the second suction portion 33, And a seal 36 to prevent air leakage upon engagement with the seal member 90.

Since the sample collecting apparatus according to the present invention can collect both formaldehyde and volatile organic compounds in the air or capture either one of them, there is no time difference between the respective samples to be collected, have.

1 is a perspective view of a sample collecting apparatus according to an embodiment of the present invention;
Fig. 2 is a cross-sectional view of the first collecting module shown in Fig. 1
3 is an exploded sectional view of Fig. 2
4 is a cross-sectional view of the second collecting module shown in Fig. 1
5 is an exploded sectional view of Fig. 4
FIG. 6 is a block diagram of a sample collecting apparatus according to an embodiment of the present invention.
7 is a flowchart of a sample collection method according to an embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

The terms first, second, etc. in this specification may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

2 is a cross-sectional view of the first collecting module shown in FIG. 1, FIG. 3 is an exploded sectional view of FIG. 2, and FIG. 4 is a cross- FIG. 5 is a cross-sectional view of FIG. 4, FIG. 6 is a configuration diagram of a sample collecting apparatus according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of a sample collecting apparatus according to an embodiment of the present invention. Fig. 8 is a flow chart of the sample collection method. Fig.

As shown in the figure, the sample collecting apparatus according to an embodiment of the present invention includes a case 10 in the form of a movable bag, first and second collecting modules 10, A pump 40 for sucking air so that the first and second collecting samples in the air pass through the first and second collecting modules 20 and 30; A storage module 60 for recording sensed data in the sensor module 50 and a control module 60 for controlling the pump 40, the sensor module 50, and the storage module 60, And a control unit 70 for controlling the display unit.

The case 10 includes an outer case 12 in the form of a bag and a collecting case 14 coupled to the outer case 12.

The outer case 12 is formed with a discharge port 13 through which the air sucked by the pump 40 is discharged.

The collecting case 14 includes first and second mounting holes 14a and 14b for the first and second collecting modules 20 and 30 and a display 15 for guiding the operating state and various lamps 16 .

In the present embodiment, the first collecting module 20 is for collecting formaldehyde in the air, and the second collecting module 30 is for collecting volatile organic compounds in the air.

The first collecting module 20 includes a first collecting body 22 installed in the collecting case 14 and connected to the pump 40 and a second collecting body 22 coupled to the first collecting body 22, And includes a first cartridge 80 to be collected.

The first collecting module 20 includes a first suction part 23 formed on the first collecting body 22 and fitted to the first cartridge 80 and a second suction part 23 formed on the first collecting body 22, A first discharge unit 24 connected to the first suction unit 23 so as to allow the air to flow and a second discharge unit 24 connected to the first suction unit 23 and the first discharge unit 24, 1 collecting passage 25 and a seal 26 disposed on the outer peripheral surface of the first suction portion 23 and preventing leakage of air when engaged with the first cartridge 80.

In the present embodiment, the first suction portion 23 and the first discharge portion 24 are made of separate components and fixed to the first collecting body 22 in a screwed manner.

The first flow path 25 is formed by bending in an L shape.

The first suction port 23 is disposed in the first installation port 14a and the first cartridge 80 is inserted through the first installation port 14a to be connected to the first suction port 23 Respectively.

The air trapped by the sealing ring 26 is prevented from leaking to the outside.

The first cartridge 80 is a cartridge for capturing formaldehyde. The first cartridge 80 includes a first cartridge body 82 having a hollow 81 formed therein, and a second cartridge body 82 formed on one side and the other side of the first cartridge body 82 And includes an air inlet 83 and an air outlet 84.

A formaldehyde adsorption packing 85 for collecting formaldehyde is disposed in the first cartridge body 82 at the air inlet 83 side.

The adsorption charge 85 is DNPH (2,4-dinitrophenylhydrazine) for capturing formaldehyde in the room air, and is a general material for capturing formaldehyde, and thus a detailed description thereof will be omitted.

The second collecting module 30 includes a second collecting body 32 installed in the collecting case 14 and connected to the pump 40 and a second collecting body 32 coupled to the second collecting body 32, And a second cartridge 90 in which a sample is collected.

The second collecting module 30 includes a second suction part 33 formed on the second collecting body 22 and fitted to the second cartridge 90 and a second suction part 33 formed on the second collecting body 32. [ A second discharge portion 34 connected to the second suction portion 33 so as to allow air to flow and a second discharge portion 34 connected to the second suction portion 33 and the second discharge portion 34 to guide air 2 collecting passage 35 and a sealing 36 disposed on the inner peripheral surface of the second suction portion 33 and preventing leakage of air when engaged with the second cartridge 90.

The second cartridge (90) is inserted into the inner peripheral surface of the second suction portion (33) and is engaged with the second suction portion (33). The second cartridge 90 is formed in the form of a tube, and the volatile organic compound adsorption packing 95 is disposed therein to collect the volatile organic compounds in the air.

The adsorption packing 95 is for collecting volatile organic compounds in the air, and examples thereof include Tenax TA, Carbopack B, Spherocarb, and Carboseive.

The sensor module 50 is an atmospheric pressure sensor 52, a temperature sensor 54 and a flow sensor 56 and is installed in the collecting case 14.

The flow sensor 56 is installed between the collecting modules 20 and 30 and the pump 40 to sense the flow rate of the collected water through the collecting modules 20 and 30.

The atmospheric pressure sensor 52 and the temperature sensor 54 are installed in the collecting case 14 to sense atmospheric pressure and temperature according to each time.

A value sensed by the sensor module 50 is transmitted to the controller 70. The user may selectively store the sensed value in the storage module 60 and the storage module 60 may be a USB .

In addition, a bag (not shown) for collecting the complex odor may be coupled to the discharge port 13, and when the complex odor is collected, the first and second collecting modules 20 and 30 may be provided with first, The pump 40 is operated in a state in which the two cartridges 80 and 90 are separated so that the sucked air is collected in the bag.

Hereinafter, a sample collection method according to an embodiment of the present invention will be described in detail with reference to FIG.

First, the method for collecting samples in air according to the present embodiment includes a step 10 for discriminating whether a control unit collects a formaldehyde sample and a volatile organic compound at the same time, and a step 10 for collecting samples of the first and second collecting modules (S12) of operating the pump (40) connected to the pump (20) (30), storing the start time after the start of the collection (S13), determining whether the sampled time or accumulated amount is equal to the set value (S15a) (S15b) of stopping the pump (40) when any one of the sampling time and the red flow rate is equal to the set value, (S16a) (S16b) of storing the temperature, the accumulated amount of oil, and the sampling time.

Next, in the case of capturing only the formaldehyde, a step S22 of operating only the pump 40 connected to the first collecting module 20, a step S23 of storing the start time after the start of collecting, (S25) of stopping the pump (40) when any one of the sampling time and the red flow rate is equal to the set value, determining whether the time or accumulated flow amount is equal to the set value And storing the atmospheric pressure, the temperature, the accumulated amount during the collection, and the sampling time (S26).

Next, when only the volatile organic compounds are collected, a step S32 of operating only the pump 40 connected to the second collecting module 30, a step S33 of storing the start time after the start of collecting, A step (S34) of judging whether the sampling time or accumulated flow amount is equal to the set value, stopping the pump (40) when either the sampling time or the cumulative flow amount is equal to the set value (S35) (S36) storing the atmospheric pressure, the temperature, the accumulated amount of oil, and the sampling time during the collection of the gas.

Here, since the sample collecting apparatus according to the present embodiment collects samples at the same time, there is an effect that a time difference is not generated between collected samples.

In other words, conventionally, since each sample is collected by each apparatus in the conventional apparatus, the collected sample can not be captured at the same time in the same method. However, the sample collecting apparatus according to the present embodiment simultaneously collects each sample The reliability of each sample to be collected is extremely high.

In addition, the collection time, the accumulated flow rate, the atmospheric pressure, and the temperature of each of the collected samples are automatically stored to further improve the reliability of the collected samples.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Case 12: External case
14: collecting case 20: first collecting module
22: first collecting body 23: first suction portion
24: first discharge portion 25: first collecting flow path
26: sealing 30: second collecting module
32: second collecting body 33: second suction portion
34: second discharge portion 35: second collecting flow path
36: Sealing 40: Pump
50: sensor module 52: atmospheric pressure sensor
54: Temperature sensor 56: Flow sensor
60: storage module 70:
80: first cartridge 90: second cartridge

Claims (3)

delete A case 10;
First and second collecting modules 20 and 30 installed in the case 10 to collect different samples in the air;
A pump 40 for sucking air so that the first and second collection samples in the air pass through the first and second collection modules 20 and 30;
A sensor module (50) for sensing the air environment at the time of collecting each sample;
A storage module (60) for recording sensed data in the sensor module (50);
And a controller (70) for controlling the pump (40), the sensor module (50), and the storage module (60)
The first collecting module (20)
A first collecting body (22) installed inside the case (10) and connected to the pump (40); And a first cartridge (80) coupled to the first collecting body (22) and collecting a sample in the air,
A first suction part 23 formed on the first collecting body 22 and fitted to the first cartridge 80 and a second suction part 23 formed on the first collecting body 22, (25) for guiding air by connecting the first suction portion (23) and the first discharge portion (24) to each other, a first discharge portion (24) connected to the first suction portion (23) And a seal (26) disposed on an outer circumferential surface of the first suction portion (23) and preventing leakage of air upon engagement with the first cartridge (80).
A case 10;
First and second collecting modules 20 and 30 installed in the case 10 to collect different samples in the air;
A pump 40 for sucking air so that the first and second collection samples in the air pass through the first and second collection modules 20 and 30;
A sensor module (50) for sensing the air environment at the time of collecting each sample;
A storage module (60) for recording sensed data in the sensor module (50);
And a controller (70) for controlling the pump (40), the sensor module (50), and the storage module (60)
The second collecting module (30) includes a second collecting body (32) installed inside the case (10) and connected to the pump (40). And a second cartridge (90) coupled to the second collecting body (32) and collecting a sample in the air,
The second collecting module 30 includes a second suction portion 33 formed on the second collecting body 22 and fitted to the second cartridge 90 and a second suction portion 33 formed on the second collecting body 32 A second discharge port 34 connected to the second suction port 33 so as to allow air to flow and a second discharge port 34 connected to the second suction port 33 and the second discharge port 34, And a sealing (36) disposed on an inner circumferential surface of the second suction part (33) and preventing leakage of air when engaged with the second cartridge (90).

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