CN110261466A - A kind of FID method for controlling automatic ignition, device and FID based on VOCs detection - Google Patents
A kind of FID method for controlling automatic ignition, device and FID based on VOCs detection Download PDFInfo
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- CN110261466A CN110261466A CN201910542813.6A CN201910542813A CN110261466A CN 110261466 A CN110261466 A CN 110261466A CN 201910542813 A CN201910542813 A CN 201910542813A CN 110261466 A CN110261466 A CN 110261466A
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- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
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Abstract
A kind of FID method for controlling automatic ignition based on VOCs detection of this reality disclosure of the invention, can effectively under misfiring condition, automatic ignition.In the present invention it is a kind of based on VOCs detection FID method for controlling automatic ignition include: obtain the side FID nozzle and collector between current signal；Judge whether the current signal is less than default stall threshold；If the current signal is less than default stall threshold, hydrogen supply instruction is sent to hydrogen supply side, control hydrogen supplies the lateral side FID and provides hydrogen；After receiving the confirmation hydrogen supply information of the side FID transmission, firing command is sent to ignition control side, the igniting side is controlled and lights a fire to FID；If the current signal is not less than default stall threshold, the current signal between the nozzle and collector of the acquisition side FID described in return step is recycled.
Description
Technical field
Present invention relates particularly to Pollution Source Monitoring technical fields, automatic further to a kind of FID based on VOCs detection
Ignition control method, device and FID.
Background technique
(VOCs, Volatile Organic Compounds) volatile organic matter, according to the definition of the World Health Organization
Boiling point is in 50 DEG C -250 DEG C of compound, and saturated vapor pressure is more than 133.32Pa at room temperature, exists in vapour form at normal temperature
A type organic in air.VOCs compound has Atmospheric Chemistry reactivity mostly, be photochemical fog it is important before
Extract, according to chemical property, VOCs divides aromatic hydrocarbon, aliphatic hydrocarbon, halogenated hydrocarbons, ester, aldehyde, ketone, eight class such as alcohol.VOCs's comes in atmosphere
Source is mainly industrial production, but recently as continuous improvement of people's living standards, the improvement of living conditions, and interior decoration is got over
Come it is more exquisite, human health damage caused by room air pollution report it is more and more, be increasingly becoming today's society concern
Focus.The source of indoor environmental pollution includes outdoor air pollution, building decoration materials, three sides of furniture and office appliance
Face.Indoor air quality variation partly cause is that outside atmosphere pollution is got worse, and interior decoration and a large amount of of finishing material make
With also indoor air quality being caused to deteriorate.The materials such as air-conditioning system and sound control glass being widely used indoors, makes room ventilation
It is restricted, further results in the continuous accumulation of VOCs.Related literatures shows that the mainstream of current country VOCs tests and analyzes
Method, only can 65 kinds of volatile organic matters in determination of the environment air.
People averagely have 80% or more time to spend indoors daily, compared with other pollutants, in Modern Family room
Organic pollution present in air is more universal, and crowd's exposure range is wide, and risk is big, the people stopped in this environment
Group, is easy to produce the short-term adverse reaction such as skin allergy, fatigue, drowsiness, dizziness.Long Term Contact VOCs exhales the skin to people
Desorption system and cardiovascular system cause great damage.The most common two pollutants matter be formaldehyde and benzene homologues they be recognized
To be high toxicity, causing a disease, carcinogenic toxic compounds.Formaldehyde is present in multiple building materials, it is that a kind of toxicity is very strong
Substance, human body are chronically in formaldehyde environment, can cause canceration or body distortion.Benzene homologues are prevalent in paint,
In the construction materials such as coating, blood constituent and cardiovascular system can be damaged, causes gastrointestinal disturbance, induces immune system, interior point
System and disease of hematopoietic system are secreted, causes metabolic deficiency, or even have carcinogenesis.The World Health Organization thinks, in room air
VOCs will lead to human body generate headache, nausea, fatigue, the symptoms such as red swelling of the skin.
(FID, flame ionization detector) flame ionization ditector, is burnt in air with hydrogen
For the energy, carrier gas (N2) carries analyzed component and combustible gas (H2) and enters inspection side device from nozzle, and combustion-supporting gas (air) is from surrounding
It imports, tested component is dissociated into negative ions in flame, and in the electric field that polarizing voltage is formed, negative ions are to respective phase
Anti- electrode movement, the ion stream of formation are collected, export, and through impedance conversion, amplifier amplifies electric signal, just can measure
Electric signal.Since flame ionization ditector has very high sensitivity to most of organic compounds, but to not ionizable
Inorganic compound without response, so being very suitable to the analysis of Trace Organic Gases in Atmosphere.
FID, if put out a fire at the nozzle of FID, in the case where not being found, is detected to obtain by manual firing at present
The authenticities of data will be affected.
Summary of the invention
The present invention provides a kind of FID method for controlling automatic ignition based on VOCs detection, can be effectively in misfiring condition
Under, automatic ignition.
In the present invention it is a kind of based on VOCs detection FID method for controlling automatic ignition include:
Obtain the current signal between the nozzle and collector of the side FID；
Judge whether the current signal is less than default stall threshold；
If the current signal is less than default stall threshold, hydrogen supply instruction is sent to hydrogen supply side, controls hydrogen
Gas supplies the lateral side FID and provides hydrogen；
After receiving the confirmation hydrogen supply information of the side FID transmission, firing command is sent to ignition control side, controls institute
Igniting side is stated to light a fire to FID；
If the current signal is not less than default stall threshold, the nozzle of the acquisition side FID and collection described in return step
Current signal between pole is recycled.
The present invention also provides a kind of control devices, specifically include:
Acquiring unit, the current signal between nozzle and collector for obtaining the side FID；
Judging unit, for judging whether the current signal is less than default stall threshold；
First transmission unit, for sending hydrogen supply instruction to hydrogen supply side, control hydrogen supplies the lateral side FID and mentions
For hydrogen；
Receiving unit, for receiving the confirmation hydrogen supply information of the side FID transmission；
Second transmission unit controls the igniting side and carries out a little to FID for sending firing command to when ignition control side
Fire.
The present invention also provides a kind of FID, specifically include:
Confirmation unit, for confirming that hydrogen supply side provides hydrogen；
Third transmission unit, for sending confirmation hydrogen supply information to control device.
Technical solution of the present invention has the advantages that
The present invention improves original side FID, realizes that the technical solution of automatic ignition is as follows by installation control device: obtaining
Current signal between the nozzle and collector of the side FID；Judge whether the current signal is less than default stall threshold；If described
Current signal is less than default stall threshold, then sends hydrogen supply instruction to hydrogen supply side, and control hydrogen supplies the lateral side FID
Hydrogen is provided；After receiving the confirmation hydrogen supply information of the side FID transmission, firing command, control are sent to ignition control side
It lights a fire to FID the igniting side；If the current signal is not less than default stall threshold, obtained described in return step
Current signal between the nozzle and collector of the side FID is recycled.
Detailed description of the invention
Fig. 1 is that the present invention is based on the FID method for controlling automatic ignition flow charts that VOCs is detected；
Fig. 2 is that the present invention is based on the FID automatic ignition controller structural schematic diagrams that VOCs is detected；
Fig. 3 is that the present invention is based on the FID structural schematic diagrams of the VOCs FID method for controlling automatic ignition detected.
Specific embodiment
The present invention provides a kind of FID method for controlling automatic ignition based on VOCs detection, can be effectively in misfiring condition
Under, automatic ignition.
In the present invention it is a kind of based on VOCs detection FID method for controlling automatic ignition include:
101, the current signal between the nozzle and collector of the side FID is obtained；
In the present embodiment, when organic matter passes through FID, burning generates ion in flame, in the effect of polarizing voltage
Under, the electric current between nozzle and collector will increase, to this current signal carry out detection can be used as judge whether it is flame-out
Foundation.
102, judge whether the current signal is less than default stall threshold；
In the present embodiment, default stall threshold can be a numerical value and be also possible to a range, not do again specific
It limits.
If so, thening follow the steps 103；Otherwise return step 101；
103, hydrogen supply instruction is sent to hydrogen supply side, control hydrogen supplies the lateral side FID and provides hydrogen；
104, after receiving the confirmation hydrogen supply information of the side FID transmission, firing command, control are sent to ignition control side
The igniting side is made to light a fire to FID；
If the current signal is not less than default stall threshold, the nozzle of the acquisition side FID and collection described in return step
Current signal between pole is recycled.
The present invention also provides a kind of control devices, specifically include:
Acquiring unit 201, the current signal between nozzle and collector for obtaining the side FID；
Judging unit 202, for judging whether the current signal is less than default stall threshold；
First transmission unit 203, for sending hydrogen supply instruction to hydrogen supply side, control hydrogen supplies lateral FID
Side provides hydrogen；
Receiving unit 204, for receiving the confirmation hydrogen supply information of the side FID transmission；
Second transmission unit 205, for sending firing command to when ignition control side, control the igniting side to FID into
Row igniting.
In the present embodiment, ignition control side may include ignition coil, be lighted a fire by way of energization, can also be with
It is that arm is visited in igniting, this will not be repeated here for the working principle of igniting spy arm.
The present invention also provides a kind of FID, specifically include:
Confirmation unit 301, for confirming that hydrogen supply side provides hydrogen；
Third transmission unit 302, for sending confirmation hydrogen supply information to control device.
After igniting, controller can send instruction, and control hydrogen supply side stops supply, to prevent unexpected hair
It is raw.Similarly, detecting that FID is flame-out and hydrogen supply is surveyed still in the case where carrying out hydrogen supply, controller, which can be sent, to be referred to
It enables, control hydrogen supply side stops supply.
In addition, being stored on the computer readable storage medium the present invention also provides a kind of computer readable storage medium
There is the FID automatic ignition controller based on VOCs detection to realize that the FID as described above based on VOCs detection is automatic when executing
The step of ignition control method.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server or network equipment etc.) execute method described in each embodiment of the present invention.The above is only of the invention
Preferred embodiment is not intended to limit the scope of the invention, all using made by description of the invention and accompanying drawing content
Equivalent structure or equivalent flow shift is applied directly or indirectly in other relevant technical fields, and is similarly included in this hair
In bright scope of patent protection.
Claims (3)
1. a kind of FID method for controlling automatic ignition based on VOCs detection characterized by comprising
Obtain the current signal between the nozzle and collector of the side FID；
Judge whether the current signal is less than default stall threshold；
If the current signal is less than default stall threshold, hydrogen supply instruction is sent to hydrogen supply side, control hydrogen supplies
Hydrogen is provided to the lateral side FID；
After receiving the confirmation hydrogen supply information of the side FID transmission, firing command is sent to ignition control side, controls the point
It lights a fire to FID fiery side；
If the current signal is not less than default stall threshold, the nozzle and collector of the acquisition side FID described in return step it
Between current signal recycled.
2. a kind of control device characterized by comprising
Acquiring unit, the current signal between nozzle and collector for obtaining the side FID；
Judging unit, for judging whether the current signal is less than default stall threshold；
First transmission unit, for sending hydrogen supply instruction to hydrogen supply side, control hydrogen supplies the lateral side FID and provides hydrogen
Gas；
Receiving unit, for receiving the confirmation hydrogen supply information of the side FID transmission；
Second transmission unit controls the igniting side and lights a fire to FID for sending firing command to when ignition control side.
3. a kind of FID characterized by comprising
Confirmation unit, for confirming that hydrogen supply side provides hydrogen；
Third transmission unit, for sending confirmation hydrogen supply information to control device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542813.6A CN110261466A (en) | 2019-06-21 | 2019-06-21 | A kind of FID method for controlling automatic ignition, device and FID based on VOCs detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542813.6A CN110261466A (en) | 2019-06-21 | 2019-06-21 | A kind of FID method for controlling automatic ignition, device and FID based on VOCs detection |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945314A (en) * | 2006-10-20 | 2007-04-11 | 上海精密科学仪器有限公司 | Flame ionization detector |
| CN103869034A (en) * | 2012-12-15 | 2014-06-18 | 上海仪电分析仪器有限公司 | Automatic ignition detection control method of gas chromatography flame ionization detector (FID) |
| CN108120789A (en) * | 2017-12-20 | 2018-06-05 | 珠海高凌信息科技股份有限公司 | VOCs on-line monitoring systems FID stops working alarm method and its device |
-
2019
- 2019-06-21 CN CN201910542813.6A patent/CN110261466A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945314A (en) * | 2006-10-20 | 2007-04-11 | 上海精密科学仪器有限公司 | Flame ionization detector |
| CN103869034A (en) * | 2012-12-15 | 2014-06-18 | 上海仪电分析仪器有限公司 | Automatic ignition detection control method of gas chromatography flame ionization detector (FID) |
| CN108120789A (en) * | 2017-12-20 | 2018-06-05 | 珠海高凌信息科技股份有限公司 | VOCs on-line monitoring systems FID stops working alarm method and its device |
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Application publication date: 20190920 |