KR20130102433A - Carbon monoxide detection and removing apparatus for barbecue charcoal and gas grill - Google Patents
Carbon monoxide detection and removing apparatus for barbecue charcoal and gas grill Download PDFInfo
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- KR20130102433A KR20130102433A KR1020120023673A KR20120023673A KR20130102433A KR 20130102433 A KR20130102433 A KR 20130102433A KR 1020120023673 A KR1020120023673 A KR 1020120023673A KR 20120023673 A KR20120023673 A KR 20120023673A KR 20130102433 A KR20130102433 A KR 20130102433A
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- carbon monoxide
- gas
- oxygen
- sensor
- catalyst
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 55
- 239000003610 charcoal Substances 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 title description 4
- 235000021168 barbecue Nutrition 0.000 title description 2
- 239000003054 catalyst Substances 0.000 claims abstract description 14
- 239000004065 semiconductor Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 239000010948 rhodium Substances 0.000 claims abstract description 5
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003463 adsorbent Substances 0.000 claims description 6
- 229910003437 indium oxide Inorganic materials 0.000 claims description 3
- 229910018279 LaSrMnO Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- 229910018281 LaSrMnO3 Inorganic materials 0.000 abstract 1
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 7
- 102000001554 Hemoglobins Human genes 0.000 description 6
- 108010054147 Hemoglobins Proteins 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910006404 SnO 2 Inorganic materials 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 208000024891 symptom Diseases 0.000 description 5
- 208000001408 Carbon monoxide poisoning Diseases 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 206010028813 Nausea Diseases 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 210000002216 heart Anatomy 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008693 nausea Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010024264 Lethargy Diseases 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 208000010476 Respiratory Paralysis Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 239000002973 irritant agent Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 231100000344 non-irritating Toxicity 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 210000001034 respiratory center Anatomy 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/07—Roasting devices for outdoor use; Barbecues
- A47J37/0786—Accessories
-
- 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—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Description
Carbon Monoxide Removal, Sensors, Catalytic Devices
Carbon monoxide poisoning, commonly known as briquette gas poisoning, is a state of poisoning of carbon monoxide, a colorless, odorless, tasteless, and non-irritating gas produced by incomplete combustion of carbon-containing materials. The chemical reaction formula is as follows.
CxHyOz + O 2 (sufficient oxygen) ------ CO 2 + H 2 O ---- (1) complete combustion
CxHyOz + O 2 (lack of oxygen) ------- CO + H 2 O ---- (2) incomplete combustion
Under normal combustion conditions, carbohydrates and proteins react with enough oxygen molecules to produce harmless carbon dioxide and water as shown in Equation (1). When oxygen is not properly introduced, carbon monoxide, a highly toxic substance, is produced. .
The number of patients addicted to carbon monoxide is rapidly decreasing as briquettes are reduced, and more households use city gas or heating oil, and boiler manufacturing technology that reduces incomplete combustion and blocks leakage gas is developed. Recently, people who have been rescued from a fire scene or sleeping in a non-ventilated car with a heater on are addicted to carbon monoxide. Inhaled carbon monoxide binds to hemoglobin instead of oxygen, resulting in hypoxia because oxygen cannot be properly transported to each tissue.
Carbon monoxide binds to hemoglobin (Hb) in red blood cells 250 times more easily than oxygen. Therefore, hemoglobin does not carry oxygen properly. The lack of oxygen in the body produces lactic acid in living cells, and the blood turns acidic, which stimulates the respiratory center to increase the depth of respiration, respiratory rate, and heart rate to compensate for oxygen deficiency. Compensation action is to breathe a relatively large amount of air to compensate for the lack of oxygen, circulating a lot of blood oxygen content is reduced, expand the blood vessels of the brain to adjust the flow of a lot of blood. However, such a compensating effect is effective only until the oxygen concentration is about 16%, and at lower concentrations, biocompensation is impossible, resulting in oxygen deficiency symptoms. The symptoms of the organs (brain, heart, muscles) that require a lot of oxygen are reduced. Early symptoms of intoxication are nonspecific and not easy to distinguish from other diseases. Headache, dizziness, nausea (nausea), etc. may appear in the early stages, and worsening symptoms may include drowsiness, lethargy, seizures, and respiratory paralysis.
It's important to look for situations that may indicate carbon monoxide poisoning, and when in doubt, measure your carbon monoxide hemoglobin (COHb) levels. The normal range of carbon monoxide hemoglobin (COHb) is about 0-5%. The average person who smokes a pack of cigarettes per day averages about 6%, sometimes up to 10%. High levels of carbon monoxide hemoglobin (COHb) indicate carbon monoxide poisoning, but do not determine symptoms or prognosis.
Therefore, various methods for detecting carbon monoxide have been developed to prevent carbon monoxide poisoning. As the material, a material obtained by adding indium oxide (In 2 O 3 ) and rhodium (Rh) is used. Some fine particle powders which uniformly disperse MnO 2 and Al 2 O 3 in an electrofusion resin solution and Cu 2 O-ZnO solid solution, and thick cylindrical films of Cu 2 O. ZnO and Al 2 O 3 are formed.
In spite of fluctuations in ambient temperature and power supply voltage, zero-drift does not occur, and the CO gas sensitivity is prevented and the contact combustion type carbon monoxide sensor which does not generate the maximum measurement error is provided. The sensor is annealed to a high temperature for a short time in an atmosphere of a mixed gas of argon and CO, then welded and washed with an organic solvent and used as a coil for the sensing unit (S) and the reference unit (D). After the film is sufficiently dried, pure H 2 PtCl 6 . The solution obtained by dissolving H 2 O is applied or dipped so that the semiconductor gas sensor uses the change in electrical conductivity that occurs when gas comes into contact with the ceramic semiconductor surface. Since it is often used, metal oxides (ceramics) which are stable at high temperatures are mainly used. Metal oxides often exhibit the properties of semiconductors, and when the metal atoms are excessive (oxygen deficient), they are N-type semiconductors, and when metal atoms are deficient, they are P-type semiconductors.
Among the ceramic semiconductors, semiconductors having high thermal conductivity and high melting point and having thermally stable properties in the use temperature range are used for sensors. Most semiconductor gas sensors show some response to toxic gases and flammable gases, and there are many kinds of gases that can be detected, easy to manufacture sensors, and simple to configure detection circuits. However, there are few gas sensors that can detect only the gas to be detected and are still being researched and developed. Selectivity may be given by changing or combining the parent material and catalyst of the semiconductor gas sensor in various ways and by changing the sensor operating temperature. Many metal oxides (ceramics) are being studied for gas sensors. The most studied and used are SnO 2 , ZnO, Fe 2 O 3 .
The semiconductor characteristics of SnO 2 ceramics are due to the imperfection of the crystal. When heat energy is applied from the outside, electrons of oxygen vacancy, which act as electron donors, move to the conduction band Ec and act as carriers. Indicates the properties. The operating temperature of ceramic semiconductors is very sensitive to sensor characteristics because it changes the electrical conductivity and the gas adsorption by changing the number and mobility of carriers that move to the conduction band at donor level.
In the present invention, by using a sensor that can be installed on a charcoal grill plate to detect carbon monoxide every time the carbon monoxide is detected by operating a fan to discharge the carbon monoxide and to filter out using a filter. In order to achieve the object of the present invention, first, a gas sensor capable of effectively detecting carbon monoxide should be made. Next, a mechanism for collecting the carbon monoxide discharged to the filter should be constructed. Finally, we need to make a filter that can remove carbon monoxide.
Using indium oxide (In 2 O 3 ) and rhodium, the sensor unit that detects carbon monoxide generated during combustion is simple to operate, so that the response speed and recovery rate are high, and even a very small amount of CO can be detected. In response to the detection of the sensor unit, the sound or LED light flickers, and at the same time, a circulating fan is operated between the fire plates to adsorb carbon monoxide to the composite oxide catalyst so that carbon monoxide can be removed in an instant.
The present invention can reduce the generation of carbon monoxide generated in the conventional charcoal grilling situation to prevent the adverse effects on health by eliminating the state that can be addicted to carbon monoxide or even a small amount in advance.
1 is a perspective view of one embodiment of the present invention
The ceramic semiconductor gas sensor uses the reaction between the surface of the solid and the gas. The rate at which the gas is adsorbed and the selectivity of the adsorbed gas are greatly influenced not only by the operating temperature of the sensor but also by the catalyst composition and amount and the atmosphere around the sensor. The reducing gas or combustible gas is oxidized with oxygen gas, so when these gases are present, the oxygen gas adsorbed on the SnO 2 surface is removed, and the free electrons trapped in the oxygen gas enter the SnO 2 particles, which lowers the potential barrier. The electrical conductivity between particles becomes large. As a result, the amount of adsorption and desorption of oxygen gas determines the sensitivity of the sensor. Basically, in order to increase the amount of oxygen adsorption, the specific surface area of SnO 2 powder must be large and the temperature of oxygen gas adsorption should be increased to the maximum.
In the present invention, the carbon monoxide sensor detects that the carbon monoxide is generated and includes a method of converting harmful gas into harmless carbon dioxide or adsorbing and removing carbon monoxide.
The carbon monoxide adsorbent is prepared in the form of a solid material impregnated and dispersed with copper salt in a porous solid support. Compared with conventional adsorbents such as zeolite, the heat of carbon monoxide adsorption is high, and the heat of adsorption of methane and carbon dioxide is low, so that carbon monoxide can be desorbed by lowering the partial pressure of carbon monoxide or increasing the temperature. The adsorbents contaminating zeolite and copper can be reused, thereby extending the service life of the adsorbent and allowing the adsorption reaction to occur even at low temperatures, depending on the composition. In particular, the development of a cheap material for the automobile of the carbon monoxide removing catalyst is platinum (Pt) as a catalyst was contaminated with the substitute carrier LaCoO 3, LaMnO 3 Or experiments confirmed that it is effective to make the adsorbent by dispersing the LaSrMnO 3 Perovskite Oxide catalyst (Perovskite Oxide) catalyst, which is contaminated with Sr to improve the catalytic property, to a ceramic carrier.
Looking at a simple configuration of the present invention as follows. When the carbon monoxide is detected by the carbon monoxide sensor 1-3, the carbon monoxide exhaust fan 1-6 is operated and carbon monoxide is discharged through the carbon monoxide absorption hole 1-4 of the carbon monoxide exhaust device 1-1. The carbon monoxide passed through the carbon monoxide discharge pipe 1-5 is converted into carbon dioxide by the catalyst 1-8 of the honeycomb carrier catalyst device 1-7 and is discharged.
1-1: carbon monoxide exhaust device
1-2: charcoal grill
1-3: Carbon Monoxide Sensor
1-4: carbon monoxide absorption hole
1-5: carbon monoxide exhaust pipe
1-6: carbon monoxide exhaust fan
1-7: Honeycomb Carrier Catalyst Apparatus
1-8: catalyst
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120023673A KR20130102433A (en) | 2012-03-07 | 2012-03-07 | Carbon monoxide detection and removing apparatus for barbecue charcoal and gas grill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120023673A KR20130102433A (en) | 2012-03-07 | 2012-03-07 | Carbon monoxide detection and removing apparatus for barbecue charcoal and gas grill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20130102433A true KR20130102433A (en) | 2013-09-17 |
Family
ID=49452200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020120023673A KR20130102433A (en) | 2012-03-07 | 2012-03-07 | Carbon monoxide detection and removing apparatus for barbecue charcoal and gas grill |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20130102433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536575A (en) * | 2015-03-19 | 2016-09-21 | Esse Eng Ltd | Oven |
-
2012
- 2012-03-07 KR KR1020120023673A patent/KR20130102433A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536575A (en) * | 2015-03-19 | 2016-09-21 | Esse Eng Ltd | Oven |
| GB2536575B (en) * | 2015-03-19 | 2017-11-01 | Esse Eng Ltd | Oven |
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