KR20140012233A - Apparatus for analysing air-ingredient of portable air respirator - Google Patents

Apparatus for analysing air-ingredient of portable air respirator Download PDF

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Publication number
KR20140012233A
KR20140012233A KR1020120078497A KR20120078497A KR20140012233A KR 20140012233 A KR20140012233 A KR 20140012233A KR 1020120078497 A KR1020120078497 A KR 1020120078497A KR 20120078497 A KR20120078497 A KR 20120078497A KR 20140012233 A KR20140012233 A KR 20140012233A
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KR
South Korea
Prior art keywords
air
sensor
pressure
respirator
portable
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KR1020120078497A
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Korean (ko)
Inventor
정일손
김홍규
정재칠
Original Assignee
주식회사 티테크
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Priority to KR1020120078497A priority Critical patent/KR20140012233A/en
Publication of KR20140012233A publication Critical patent/KR20140012233A/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
    • 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
    • G01N2033/0078—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 testing material properties on manufactured objects
    • G01N2033/0088—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 testing material properties on manufactured objects other articles

Abstract

The present invention relates to a device for analyzing the air component of the air respirator used in the fire extinguishing of firefighters, etc. The present invention is different from the existing large air component analysis equipment using the measurement test tubes for each gas Analyze the air components of the air respirator in a complex manner by measuring the pressure, oxygen concentration, carbon dioxide concentration, and volatile organic compound concentration of the decompressed air, and the concentration of moisture, oil mist, hydrocarbons and carbon monoxide using sensors. It is thereby possible to provide a portable air component analyzer that can be easily used in fire scene conditions.

Description

Air component analyzer of portable air respirator (air cylinder) {APPARATUS FOR ANALYSING AIR-INGREDIENT OF PORTABLE AIR RESPIRATOR}

The present invention relates to a device for analyzing the harmful components of the air filled in the air respirator filled with a high pressure, and more particularly to analyze the air component of the portable air respirator used in the suppression of fire, etc. It is a suitable air component analyzer.

Firefighters will wear a portable air ventilator with an air breathing mask to ensure that the fire can be safely breathed from toxic fumes at the time of fire extinguishing, thereby completing the mission. , 300bar, etc.) to fill the inside of the air respirator.

In this case, when moisture and oil, which have not been removed, remain for a long time when the general air is compressed and charged inside the portable air ventilator, problems such as corrosion of the container and propagation of microorganisms are generated in the air ventilator. Not only the oxygen content of the air supplied from the air respirator is lowered, but also carbon monoxide, carbon dioxide, oil, moisture, odors, volatile organic compounds, etc. occur, and the firefighter using the air breathes the polluted air and causes fatal damage to the human body. May cause.

Therefore, in consideration of the above problems, it is necessary to check the concentration of the harmful gas by measuring the components of the air filled in the air respirator, for this purpose, conventionally air components using a plurality of harmful gas detector tube (detector tube) Analysis equipment is in use.

Conventional air component analyzers each using a plurality of harmful gas measurement tubes for analyzing the air components of the air respirator have a problem that it is impossible to carry individually and is very expensive.

In addition, when a large fire such as a forest fire occurs, the firefighters perform a fire extinguishing operation for several days. A conventional air component analyzer using a plurality of harmful gas detection tubes is difficult to move to the actual site. Therefore, the situation is used as it is without measuring the air component of the air respirator used in the fire scene.

Accordingly, in view of the above problems, there is a simplified structure for measuring the air component of the air respirator, and there is no need for a portable air component analyzer or an alternative thereto.

The present invention is a device for measuring the air component of the air air ventilator, the fastener connected to the air outlet of the air ventilator is a predetermined air flow path of the air formed on one side, and the pressure of the air flowing through the air flow path Decompression means for depressurizing with pressure, a pressure sensor for detecting the pressure of the decompressed air, an oxygen sensor for measuring the oxygen concentration of the decompressed air, a carbon dioxide sensor for measuring the carbon dioxide concentration of the decompressed air and the decompression A detection means having a volatile organic compound sensor for measuring the concentration of volatile organic compounds in the supplied air, and a plurality of detection tubes each containing a color reaction type detection agent for measuring the harmful components contained in the air by a predetermined type; Air oil to control air inflow with oxygen sensor, carbon dioxide sensor, volatile organic compound sensor and multiple detection tubes It provides an air respirator air component analysis device comprising a quantity control means, and means for displaying the pressure, oxygen concentration, carbon dioxide concentration and volatile organic compound concentration of the decompressed air and whether the air inlet to each detection tube is completed.

The present invention relates to an air component of a portable air respirator (air cylinder) having a simplified structure using a sensor capable of measuring the concentration of oxygen, carbon dioxide, and volatile organic compounds contained in an air respirator and a reactive detection tube showing a color reaction. As an analytical device, the air component of a portable air ventilator used by firefighters can be measured simply and quickly.

In addition, the present invention enables the real-time monitoring of the air component analysis, storage and output of the analysis results of the portable air ventilator using an interface method using a touch screen panel, and realize the rapid control and operation of the air component analysis process Can be.

1 is a block diagram of an air component analyzer of an air respirator according to a preferred embodiment of the present invention;
2 is a flowchart illustrating a process of analyzing the air of the air respirator using the air component analyzer according to the present invention;
3A-3D illustrate exemplary menu screens provided on a display panel when analyzing air in a portable oxygen cylinder in accordance with the present invention.

The technical gist of the present invention is to measure the pressure, oxygen, carbon dioxide, and volatile organic compound concentration of the decompressed air using individual sensors, and to measure the concentrations of carbon monoxide, water, oil mist, and hydrocarbon using a color reaction detector. In order to analyze the air component filled in the air respirator in a complex manner to provide a portable air component test apparatus that can be used in the field conditions through these technical means.

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

1 is a block diagram of an air component analyzer according to a preferred embodiment of the present invention, which includes an air flow passage 102, a primary pressure reducer 104, a secondary pressure reducer 106, and a pressure sensor 108. , 5 port solenoid valve 110, oxygen sensor 112, carbon dioxide sensor 114, volatile organic compound sensor 116, color reaction detection tube (118a-118d), odor test outlet 120, control block ( 122), the display panel 124.

Referring to FIG. 1, the fasteners connected to one side of the air passage 102 are connected to the air respirator 126, and the compressed air supplied from the air respirator 126 and introduced into the air passage 102 is provided in the air passage ( The pressure is reduced (pressure drop) to a pressure of approximately 4 bar to 6 bar while passing through the primary pressure reducer 104 and the secondary pressure reducer 106 which are sequentially mounted on the 102. Here, the air respirator is filled with compressed air at a pressure of approximately 300 bar, and the primary and secondary pressure reducers 104 and 106 consist of individual regulators, in particular the secondary pressure reducer 106 is a manual It is a pressure reducer that controls the degree of decompression through operation. At this time, the pressure of the air flowing through the air passage 102 is to prevent the oxygen sensor, the carbon dioxide sensor, and the volatile organic compound sensor on the air passage 102 from being damaged due to high pressure or malfunction of the sensor. .

Next, the pressure-reduced air flows into the pressure sensor 108 and the 5-port solenoid valve 110 along the air flow passage 102, respectively.

Here, the five-port solenoid valve is provided with six output ports 110a-110f, among which four output ports 110a-110d are connected with first to fourth detection pipes, respectively, and output ports 110e. The odor test outlet 120 is connected, the inspector can check the smell of the air discharged from the air ventilator through the olfactory recognition for the air discharged through the odor test outlet 120, the output port (110f) Air is supplied through the oxygen sensor 112, the carbon dioxide sensor 114, the volatile organic compound sensor 116 and the sensor module consisting of a temperature sensor to measure the respective concentration, and measure the measured value control block 122 To provide.

More specifically, the five output ports 110a-110d and 110f of the six output ports 110a-110f of the five-port solenoid valve 110 are in response to the opening / closing control signal provided from the control block 122. Turn on / off the discharge of air. In addition, the oxygen sensor 112 measures the oxygen concentration in the air precisely in the measurement range of 0-30%, and the inside of the sensor has a structure including two electrodes and an electrolyte as main components. In addition, the carbon dioxide sensor 114 uses a sensor using a non-dispersive infrared absorption method (NDIR) having a measurement range of 0-20%, and the volatile organic compound sensor 116 has a measurement range of 0-500 µg / m 3. It uses the PID method.

In addition, the four detection tubes 118a-118d can quickly and accurately recognize whether the compressed air supplied from the air respirator contains harmful carbon monoxide, water, oil mist, and hydrocarbon gas.

Meanwhile, when the inspector manipulation signal (screen turkey signal) is input from the display block 124 of the control block 122, a corresponding control operation is executed, and when the air analysis mode is executed, various screen data for the interface of the inspector ( For example, the screen data illustrated in FIGS. 4A to 4D may be selectively taken out and provided to the display panel 124.

Finally, the display panel 124 has a touch screen function for manipulating the execution of the air component analysis mode. The display panel 124 includes an initial screen provided from the control block 122, an air respirator normal connection screen, Data such as odor test result screen and final result screen are displayed.

On the other hand, the embodiment of the present invention, but presented a 5 port solenoid valve, but is not necessarily limited to this, of course, it can be configured as a multi-port solenoid valve having an output port of more than 5 ports as necessary.

On the other hand, the air component analyzer of the present invention has a power structure capable of supplying power through a cigar jack of a vehicle or general power through an adapter, etc., which can perform a function as a portable air component analyzer smoothly. To do that.

Next, a series of processes for analyzing the air component of the air respirator according to the embodiment of the present invention using the air component analyzer having the above-described configuration will be described.

2 is a flowchart illustrating a process of analyzing air of an air respirator using an air component analyzer according to the present invention.

Referring to FIG. 2, when the inspector commands the execution of the air analysis by operating the display panel 124, the control block 122 guides the connection of the air respirator to the air component analyzer as shown in FIG. 3A. The message is displayed via the display panel 124. Next, when the examiner connects the air component analyzer and the air respirator 126 and opens the regulator (step 202), the compressed air discharged from the air respirator 124 is first and second pressure reducers 104 and 106. Is reduced to a predetermined level, for example a pressure of 300 bar is reduced to a pressure of 4 bar to 6 bar (step 206).

Next, the first and second pressure-reduced air flows into the pressure sensor 108 and the solenoid valve 110, the pressure sensor 108 measures the pressure of the reduced pressure air and delivers it to the control block 122 ( In step 208, the control block 122 checks whether the pressure of the decompressed air is a pressure of 4 bar to 6 bar (step 210), and the pressure value transmitted to the control block 122 is transferred to the display panel 124 so that the inspector The pressure can be checked visually.

As a result of the check in step 210, if the pressure of the decompressed air is found to be out of the pressure of 4 bar to 6 bar, the control block 122 displays a guide message for adjusting the pressure as shown in FIG. 3B. 124), and then the inspector adjusts the pressure to perform the air analysis mode if the pressure of the air indicates a pressure in the range of 4bar to 6bar.

Subsequently, the decompressed air flows into the solenoid valve 110 and is discharged to the odor test outlet 120 through the output port 110e. (Step 212), the remaining output ports 110a-110d and 110f are closed. Keep it. Therefore, the inspector can confirm whether the smell of the air discharged through the odor test outlet 120 through the olfactory recognition, the odor, at this time, the display panel 124 has a "Yes" button and "No" as shown in FIG. Button is displayed (step 216). When the odor test results, the tester presses the "no" button, a message is displayed to replace the air of the air respirator currently under test (step 216), and the inspector then selects the new air from the air component analyzer. Will connect the respirator.

On the contrary, when the inspector presses the "Yes" button as a result of the odor test, the control block 122 continues to analyze the air component and displays the detector tube selection menu screen through the display panel 124, and the inspector selects the detector tube selection menu. After selecting the detector manufacturer on the screen and completing the installation of the detector (step 218), the air component analysis mode of the air ventilator is executed (step 220).

At this time, the output ports 110a-110d and 110f of the solenoid valve 110 are opened to detect the detector tubes 118a-118d and the oxygen sensor 112, the carbon dioxide sensor 114, the volatile organic compound sensor 116, and the temperature sensor. Decompressed air is delivered to the sensor module that is configured to perform air component analysis.

In such an air component analysis process, the oxygen sensor 112, the carbon dioxide sensor 114, and the volatile organic compound sensor 116 measure the concentrations of oxygen, carbon dioxide, and volatile organic compounds in the decompressed air and transfer the same to the control block 122. do. In addition, the display panel 124 receives the opening time of the output ports 110a-110d preset according to the concentrations of oxygen, carbon dioxide and volatile organic compounds and the measurement time of the detection tube from the control block 122. (Step 220).

On the other hand, the control block 122 displays a final result screen including the temperature, pressure, oxygen concentration, carbon dioxide concentration, volatile organic compound concentration, whether the air inlet to the detection tube is completed through the air component analysis process as described above As shown in FIG. 3D, the display panel 124 may be used. On the other side, a report may be provided to print a result so that the detection result of the detector can be written (step 222).

Therefore, the examiner can clearly recognize whether the air respirator can be used by looking at the color of each detector and the final result screen displayed through the display panel 124.

Preferred embodiments of the present invention as shown in the above description, but the present invention is not necessarily limited thereto, and a person having ordinary skill in the art to which the present invention pertains does not depart from the technical spirit of the present invention. It will be readily appreciated that various substitutions and modifications are possible.

102: air flow path 104: primary pressure reducer
106: secondary pressure reducer 108: pressure sensor
110: 5 port solenoid valve 110a-110f: output port
112: oxygen sensor 114: carbon dioxide sensor
116: volatile organic compound sensor 118a-118d: detection tube
120: odor test outlet 122: control block
124: display panel 126: air respirator

Claims (9)

A device for analyzing the air component of a portable air respirator,
An air passage formed at one side of a fastener connected to an air outlet of the portable air ventilator;
Decompression means for decompressing the pressure of the air introduced through the air passage to a predetermined level;
A pressure sensor for detecting the pressure of the decompressed air;
A sensor module including an oxygen sensor for measuring oxygen concentration of the decompressed air, a carbon dioxide sensor for measuring carbon dioxide concentration, a volatile organic compound sensor for measuring volatile organic compound concentration, and a temperature sensor for measuring temperature;
Detection means having a plurality of detection tubes in which a detection agent for measuring the harmful components contained in the reduced pressure air is provided for each component;
An air flow rate control means for controlling air inflow into the sensor module and the plurality of detection tubes of the oxygen sensor, the carbon dioxide sensor, the volatile organic compound sensor, and the temperature sensor;
Means for displaying the pressure of the decompressed air, the oxygen concentration, the carbon dioxide concentration, the concentration of volatile organic compounds and the completion of air inflow into the detection tube.
Portable air respirator air component analysis device comprising a. The method of claim 1,
The decompression means,
A primary decompressor for primarily depressurizing the compressed air to a predetermined level;
A secondary pressure reducer for providing the reduced pressure air by reducing the pressure of the primary pressure secondary
Portable air respirator air component analysis device comprising a. 3. The method of claim 2,
Portable air respirator air component analyzer, characterized in that the primary and secondary pressure reducers are regulators. 3. The method of claim 2,
The secondary pressure reducer is a portable air respirator air component analyzer, characterized in that the pressure reducer can be adjusted by the manual operation of the valve. The method of claim 1,
The sensor module including the oxygen sensor, carbon dioxide sensor, volatile organic compound sensor, temperature sensor,
An air flow path through which compressed air can flow in and out of a space isolated from the outside;
The oxygen sensor, carbon dioxide sensor, volatile organic compound sensor and temperature sensor are fixed inside the isolated space.
Portable air respirator air component analysis device, characterized in that. The method of claim 1,
The air flow rate control means,
A multiport solenoid valve having a plurality of output ports corresponding to the plurality of detection tubes;
A plurality of air inlet opening and closing means respectively mounted between the inlet side of each detection tube corresponding to the outlet side of each output port;
Control means for controlling the opening and closing of the respective air inlet opening and closing means
Portable air respirator air component analysis device characterized in that. The method according to claim 6,
The multi-port solenoid valve is a portable air respirator air component analysis device further comprises an odor test outlet. The method according to claim 6,
And a plurality of air inlet opening and closing means are solenoid valves, respectively. The method of claim 1,
And said display means is a display panel having a touch screen function.
KR1020120078497A 2012-07-19 2012-07-19 Apparatus for analysing air-ingredient of portable air respirator KR20140012233A (en)

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KR1020120078497A KR20140012233A (en) 2012-07-19 2012-07-19 Apparatus for analysing air-ingredient of portable air respirator

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110763810A (en) * 2019-12-10 2020-02-07 无锡市尚沃医疗电子股份有限公司 Quality inspection system of breath analyzer
KR20200046435A (en) 2018-10-24 2020-05-07 주식회사 인포웍스 Information display method of hmd for air respirator
KR20200143047A (en) 2019-06-14 2020-12-23 고영식 Filling gas analyzing system for air respirator
KR20210154646A (en) * 2020-06-12 2021-12-21 문영실 Mobile combined gas detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200046435A (en) 2018-10-24 2020-05-07 주식회사 인포웍스 Information display method of hmd for air respirator
KR20200143047A (en) 2019-06-14 2020-12-23 고영식 Filling gas analyzing system for air respirator
CN110763810A (en) * 2019-12-10 2020-02-07 无锡市尚沃医疗电子股份有限公司 Quality inspection system of breath analyzer
CN110763810B (en) * 2019-12-10 2024-03-15 无锡市尚沃医疗电子股份有限公司 Quality inspection system of exhale analyzer
KR20210154646A (en) * 2020-06-12 2021-12-21 문영실 Mobile combined gas detector

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