CN110967449A - Flue gas detection method - Google Patents
Flue gas detection method Download PDFInfo
- Publication number
- CN110967449A CN110967449A CN201911273522.8A CN201911273522A CN110967449A CN 110967449 A CN110967449 A CN 110967449A CN 201911273522 A CN201911273522 A CN 201911273522A CN 110967449 A CN110967449 A CN 110967449A
- Authority
- CN
- China
- Prior art keywords
- concentration
- detection space
- fire gas
- methane
- carbon monoxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 56
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 28
- 239000003546 flue gas Substances 0.000 title claims description 4
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 239000000779 smoke Substances 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 46
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 24
- 238000011896 sensitive detection Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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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—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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
- F23J11/02—Devices for conducting smoke or fumes, e.g. flues for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- 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
- G01N33/0047—Organic compounds
-
- 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
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses a smoke detection method, which comprises the following steps: s10: detecting the concentration of fire gas in the detection space; s20: judging and controlling according to the detected concentration of the fire gas, and discharging the fire gas out of the detection space when the concentration of the fire gas in the detection space is smaller than a gas concentration threshold value; and when the concentration of the fire gas in the detection space is greater than or equal to the gas concentration threshold value, discharging the fire gas out of the detection space and simultaneously generating an alarm. The detection method has the advantages of sensitive detection, safety, reliability, simple structure and capability of timely discharging fire gas.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to a smoke detection method.
Background
Generally, a smoke detection method is arranged in a kitchen, and in the prior art, the smoke detection sensitivity is poor, the detection effect is not obvious, and fire gas cannot be discharged in time.
Summary of the invention
The invention aims to solve one of the problems in the prior art and provides a smoke detection method which is sensitive in detection, safe, reliable, simple in structure and capable of timely discharging fire gas.
In order to achieve the above object, the present invention provides a smoke detection method, including:
s10: detecting the concentration of fire gas in the detection space;
s20: performing judgment control according to the detected fire gas concentration,
when the concentration of the fire gas in the detection space is smaller than the gas concentration threshold value, discharging the fire gas out of the detection space;
and when the concentration of the fire gas in the detection space is greater than or equal to the gas concentration threshold value, discharging the fire gas out of the detection space and simultaneously generating an alarm.
In addition, the smoke detection method provided by the invention can also have the following technical characteristics:
further, step S20 includes a carbon monoxide sensor for detecting the concentration of carbon monoxide in the detection space;
determining whether the carbon monoxide concentration is less than a carbon monoxide threshold,
discharging fire gas out of the detection space when the carbon monoxide concentration is less than the carbon monoxide threshold value;
and discharging fire gas out of the detection space while generating an alarm when the carbon monoxide concentration is greater than or equal to the carbon monoxide threshold value.
Further, the step S20 includes a methane sensor, where the methane sensor is used to detect the concentration of methane in the detection space;
determining whether the methane concentration is less than a methane threshold,
when the methane concentration is less than the methane threshold value, discharging fire gas out of the detection space;
and when the methane concentration is greater than or equal to the methane threshold value, discharging the fire gas out of the detection space and generating an alarm.
Preferably, the step S20 further includes a buzzer, and when the fire gas concentration is greater than or equal to the gas concentration threshold, the buzzer is controlled to generate an alarm.
Drawings
FIG. 1 is a schematic diagram of the structure of a smoke detection method.
Detailed Description
The invention will be further explained with reference to the drawings.
According to the invention, the flue gas detection method is characterized by comprising the following steps:
s10: detecting the concentration of fire gas in the detection space;
s20: performing judgment control according to the detected fire gas concentration,
when the concentration of the fire gas in the detection space is smaller than the gas concentration threshold value, discharging the fire gas out of the detection space; the gas concentration lower than the gas concentration threshold value indicates that the gas concentration in the detection space is small and not enough to cause great danger, the gas can be exhausted through the exhaust module 30, and the gas concentration higher than the concentration threshold value indicates that the concentration value in the detection space is dangerous, so that the exhaust module 30 is used for exhausting air, and the alarm module 40 is used for alarming and showing clearly.
Further, step S20 includes a carbon monoxide sensor for detecting the concentration of carbon monoxide in the detection space;
determining whether the carbon monoxide concentration is less than a carbon monoxide threshold,
discharging fire gas out of the detection space when the carbon monoxide concentration is less than the carbon monoxide threshold value;
and discharging fire gas out of the detection space while generating an alarm when the carbon monoxide concentration is greater than or equal to the carbon monoxide threshold value.
Further, the step S20 includes a methane sensor, where the methane sensor is used to detect the concentration of methane in the detection space;
determining whether the methane concentration is less than a methane threshold,
when the methane concentration is less than the methane threshold value, discharging fire gas out of the detection space;
and when the methane concentration is greater than or equal to the methane threshold value, discharging the fire gas out of the detection space and generating an alarm.
Preferably, the step S20 further includes a buzzer, and when the fire gas concentration is greater than or equal to the gas concentration threshold, the buzzer is controlled to generate an alarm.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner, respectively. Moreover, simple modifications and structural modifications that are adaptive and functional to those skilled in the art are within the scope of the present invention.
While the invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. A smoke detection method is characterized by comprising the following steps:
s10: detecting the concentration of fire gas in the detection space;
s20: performing judgment control according to the detected fire gas concentration,
when the concentration of the fire gas in the detection space is smaller than the gas concentration threshold value, discharging the fire gas out of the detection space;
and when the concentration of the fire gas in the detection space is greater than or equal to the gas concentration threshold value, discharging the fire gas out of the detection space and simultaneously generating an alarm.
2. The smoke detection method according to claim 1, wherein said step S20 includes a carbon monoxide sensor for detecting a concentration of carbon monoxide in said detection space;
determining whether the carbon monoxide concentration is less than a carbon monoxide threshold,
discharging fire gas out of the detection space when the carbon monoxide concentration is less than the carbon monoxide threshold value;
and discharging fire gas out of the detection space while generating an alarm when the carbon monoxide concentration is greater than or equal to the carbon monoxide threshold value.
3. The flue gas detection method according to claim 1, wherein a methane sensor is included in the step S20, and the methane sensor is used for detecting the concentration of methane in the detection space;
determining whether the methane concentration is less than a methane threshold,
when the methane concentration is less than the methane threshold value, discharging fire gas out of the detection space;
and when the methane concentration is greater than or equal to the methane threshold value, discharging the fire gas out of the detection space and generating an alarm.
4. The smoke detection method according to claim 1, wherein said step S20 further comprises a buzzer, for controlling said buzzer to generate an alarm when said fire gas concentration is greater than or equal to a gas concentration threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911273522.8A CN110967449A (en) | 2019-12-12 | 2019-12-12 | Flue gas detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911273522.8A CN110967449A (en) | 2019-12-12 | 2019-12-12 | Flue gas detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110967449A true CN110967449A (en) | 2020-04-07 |
Family
ID=70034020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911273522.8A Withdrawn CN110967449A (en) | 2019-12-12 | 2019-12-12 | Flue gas detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110967449A (en) |
-
2019
- 2019-12-12 CN CN201911273522.8A patent/CN110967449A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200407 |