CN108120789A - VOCs on-line monitoring systems FID stops working alarm method and its device - Google Patents
VOCs on-line monitoring systems FID stops working alarm method and its device Download PDFInfo
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- CN108120789A CN108120789A CN201711383490.8A CN201711383490A CN108120789A CN 108120789 A CN108120789 A CN 108120789A CN 201711383490 A CN201711383490 A CN 201711383490A CN 108120789 A CN108120789 A CN 108120789A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/68—Flame ionisation detectors
Abstract
Stop working alarm method and its device the present invention provides a kind of VOCs on-line monitoring systems FID, wherein the described method includes：FID signal is gathered, and real-time chromatogram is drawn according to the FID signal；Judge the real-time baseline of the real-time chromatogram whether beyond default stall threshold；If so, cut-out burning source of the gas, the flame-out warning information of out of service and generation.Method provided by the present invention, judge whether flame-out failure occur in a manner that whether automatic decision baseline exceeds default stall threshold, and then halt system and generate flame-out warning information, method provided by the present invention can be such that administrative staff are further timely handled flame-out failure according to the flame-out warning information, regular maintenance of the operation maintenance personnel for VOCs on-line monitoring systems is greatly facilitated, improves the work efficiency of O＆M.
Description
Technical field
The present invention relates to Pollution Source Monitoring technical fields, are put out more specifically to a kind of VOCs on-line monitoring systems FID
Fiery alarm method and its device.
Background technology
As ozone and the important as precursors object of Secondary Organic particulate matter, volatile organic matter (VOCs) is reacted in Atmospheric Chemistry
It plays extremely important role in the process, is increasingly subject to research and concern.Volatile organic matter generally refers to saturated vapor pressure
Compared with organic compound high, that boiling point is relatively low, molecular weight is small, volatile under normal temperature state.It is generally divided into including alkane, alkene, alkynes
The non-methane hydro carbons (NMHCs) of hydrocarbon, aromatic hydrocarbon, include the oxygen-containing organic compound of aldehyde, ketone, alcohol, ether etc., halogenated hydrocarbons,
Several major classes such as nitrogenous compound, sulfur-containing compound.
Pollution sources VOCs real time on-line monitorings can be realized by VOCs on-line monitoring systems, VOCs on-line monitoring systems,
Generally comprise pretreatment unit, on-line gas chromatography, air source generator, control subsystem and data collection and transfering system group
Into wherein core component is on-line gas chromatography.
The environmental working condition that VOCs on-line monitoring systems use at present is complicated, and sample air humidity degree is larger, it is easy to cause online color
There is flame-out failure in the fid detector of spectrometer, so as to cause cannot correctly gather the electric signal of sample gas, result is caused to occur wrong
By mistake, the function of the flame-out alarm of fid detector shortage of on-line gas chromatography on the market, and then cannot notify in time at present
Operation maintenance personnel fault condition, causes data exception and equipment damage, to the dimension for VOCs on-line monitoring systems of operation maintenance personnel
Shield causes huge trouble, greatly reduces the work efficiency of O＆M.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to overcome online gas phase in the prior art at present on the market
Chromatographic fid detector lacks the function of flame-out alarm, and then the defects of cannot notify operation maintenance personnel fault condition in time.
To achieve the above object, the present invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, including following
Step：
FID signal is gathered, and real-time chromatogram is drawn according to the FID signal；
Judge the real-time baseline of the real-time chromatogram whether beyond default stall threshold；
If so, cut-out burning source of the gas, the flame-out warning information of out of service and generation.
Preferably, whether described " judging the real-time baseline of the real-time chromatogram beyond default stall threshold " includes：
Judge whether the real-time baseline of the real-time chromatogram is less than default stall threshold.
Preferably, described " acquisition FID signal, and draw real-time chromatogram according to the FID signal " includes：
FID signal is gathered, and passes through data acquisition device and the FID signal is switched into digital signal；
The real-time chromatogram is drawn according to the digital signal based on chromatographic work station.
Preferably, described " acquisition FID signal, and pass through data acquisition device and the FID signal is switched into digital signal "
Including：
Acquisition is generated by the burning source of the gas that burns and ionizes generated FID signal；
The FID signal is enlarged by voltage analog by built-in high resistance circuit；
The voltage analog is switched to by the digital signal by the data acquisition device.
Preferably, after described " judging the real-time baseline of the real-time chromatogram whether beyond default stall threshold ", also
Including：
If so, it lights a fire again；
After lighting a fire again, judge the real-time baseline whether still beyond default stall threshold.
Preferably, after described " if so, cut-out burning source of the gas, the flame-out warning information of out of service and generation ", also wrap
It includes：
The flame-out warning information is sent to terminal by transaction processing system, in order to be got according to the terminal
The flame-out failure of flame-out warning information processing.
Preferably, the burning source of the gas includes hydrogen and combustion-supporting gas.
Preferably, the default stall threshold is 0 μ V.
In addition, to solve the above problems, the present invention also provides a kind of online FID flame failure warning devices of VOCs, the VOCs
What online FID flame failure warning devices included memory, processor and storage on a memory and can run on the processor
The online FID of VOCs stop working alert program, and the online FID of VOCs, which stop working when alert program is executed by processor, to be realized such as above-mentioned institute
State VOCs on-line monitoring systems FID stop working alarm method the step of.
In addition, to solve the above problems, the present invention also provides a kind of computer readable storage medium, it is described computer-readable
It is stored with the online FID of VOCs on storage medium to stop working alert program, the online FID of VOCs alert programs of stopping working are held by processor
Realized during row VOCs on-line monitoring systems FID as described above stop working alarm method the step of.
A kind of VOCs on-line monitoring systems FID provided by the invention stops working alarm method and its device, wherein, the method
It realizes in the following way：The current state information of client is obtained according to default monitoring data item；Gather FID signal, and root
Real-time chromatogram is drawn according to the FID signal；Judge the real-time baseline of the real-time chromatogram whether beyond default stall threshold；
If so, cut-out burning source of the gas, the flame-out warning information of out of service and generation.Method provided by the present invention, by sentencing automatically
The mode whether disconnected baseline exceeds default stall threshold judges whether flame-out failure occur, and then halt system and the flame-out police of generation
It notifies breath, method provided by the present invention can be such that administrative staff are further carried out according to the flame-out warning information to flame-out failure
It timely handles, greatly facilitates regular maintenance of the operation maintenance personnel for VOCs on-line monitoring systems, improve the work of O＆M
Efficiency.
Description of the drawings
Fig. 1 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of alarm method first embodiment；
Fig. 2 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of alarm method second embodiment；
Fig. 3 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of alarm method 3rd embodiment；
Fig. 4 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of alarm method fourth embodiment；
Fig. 5 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of the 5th embodiment of alarm method；
Fig. 6 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of alarm method sixth embodiment；
Fig. 7 is that VOCs on-line monitoring systems FID of the present invention stops working the flow diagram of the 7th embodiment of alarm method；
Fig. 8 is that the functional unit connection of VOCs on-line monitoring systems FID flame failure warning device first embodiments of the present invention is shown
It is intended to.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, wherein same or similar label represents same or like from beginning to end
Element or there is same or like element.
In the description of the present invention, it is to be understood that term " length ", " width ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on embodiment
Shown orientation or position relationship, are for only for ease of the description present invention and simplify description rather than instruction or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention's
Limitation.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Embodiment 1：
With reference to Fig. 1, the first embodiment of the present invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, bag
It includes：
Step S10 gathers FID signal, and draws real-time chromatogram according to the FID signal；
It is above-mentioned, it is to be understood that FID full name are hydrogen flame ionization detectors, are a kind of universal detections of high sensitivity
Device, it almost has response to all organic matters, and substance to not dissociated in inorganic matter, inert gas or flame etc. is without sound
Very little should or be responded, its remolding sensitivity thermal conductivity detector (TCD) is 100-10000 times high, and detection is limited up to 10-13G/s is unwise to temperature
Sense, response is fast, and connection open tubular column is suitble to carry out the separation of complex sample, and 7 powers that the range of linearity is 10 are gas chromatograph detections
A kind of means best to hydro carbons (such as butane, hexane) sensitivity, are widely used in volatile hydrocarbon and many contain in instrument
The detection of carbon compound.
It is above-mentioned, it is to be understood that as ozone and the important as precursors object of Secondary Organic particulate matter, volatile organic matter
(VOCs) play extremely important role in Atmospheric Chemistry reaction process, be increasingly subject to research and concern.Volatility is organic
Object generally refers to saturated vapor pressure compared with organic compound high, that boiling point is relatively low, molecular weight is small, volatile under normal temperature state.Usually
Be divided into including alkane, alkene, alkynes, aromatic hydrocarbon non-methane hydro carbons (NMHCs), including containing for aldehyde, ketone, alcohol, ether etc.
Several major classes such as oxygen organic compound, halogenated hydrocarbons, nitrogenous compound, sulfur-containing compound.
It is above-mentioned, VOCs on-line monitoring systems, including pretreatment unit, on-line gas chromatography, air source generator, control
System and data collection and transfering system composition, wherein core component are on-line gas chromatography.Sample gas passes through sampling head and sampling
Pipe enters in pretreatment system, enters after dedusting dehumidifies pressure regulation tune stream in on-line gas chromatography.Into chromatographic sample
Gas is burnt by entering after ten-way valve, chromatography post separation into FID.When organic matter passes through fid detector, burn in flame
Ion is generated, under the action of polarizing voltage, the electric current between nozzle and collector can increase, this current signal is examined
It surveys and record can obtain corresponding spectrogram.
Above-mentioned, acquisition FID signal generates analog signal in the fid detector for acquisition, and then is drawn according to analog signal
Real-time chromatogram, the real-time chromatogram are the chromatogram that chromatographic work station is drawn in real time after analog signal is received.
Whether step S20 judges the real-time baseline of the real-time chromatogram beyond default stall threshold；
It is above-mentioned, default stall threshold can be scope or multiple or single numerical value as threshold value, pass through setting
Stall threshold is preset, can carry out judging for whether the baseline in real-time chromatogram exceeds, wherein, beyond default flame-out threshold
Value, be including but not limited to more than default stall threshold, less than default stall threshold, be not at default stall threshold scope etc. and compare
Mode.
Above-mentioned, baseline is under the operating condition being detected using associated assay devices, does not have sample sets after chromatographic column
Elution curve when distributing is known as baseline, and stable baseline should be a horizontal linear.In the present embodiment, baseline be
The spectrogram that the chromatographic work station of line is drawn according to the detector signal received.
Step S30, if so, cut-out burning source of the gas, the flame-out warning information of out of service and generation.
It is above-mentioned, if the real-time baseline of chromatogram exceeds default stall threshold in real time, judge flame-out failure occur, then
Stop the hydrogen generator of chromatographic run and production burning source of the gas, prevent equipment damage and hydrogen from accumulating.
Moreover, it is judged that when whether the real-time baseline of the real-time chromatogram beyond default stall threshold, if baseline without departing from
Default stall threshold, then it represents that monitoring system operation is normal.
A kind of VOCs on-line monitoring systems FID provided in the present embodiment stops working alarm method, passes through automatic decision base
The mode whether line exceeds default stall threshold judges whether flame-out failure occur, and then halt system and the flame-out alarm signal of generation
Breath, it is timely that method provided by the present invention can be such that administrative staff are further carried out according to the flame-out warning information to flame-out failure
Processing, greatly facilitate regular maintenance of the operation maintenance personnel for VOCs on-line monitoring systems, improve the work efficiency of O＆M.
Embodiment 2：
With reference to Fig. 2, second embodiment of the invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, is based on
Above-mentioned first embodiment shown in Fig. 2, it is described " to judge the real-time baseline of the real-time chromatogram whether beyond default flame-out threshold
Value " includes：
Step S21, judges whether the real-time baseline of the real-time chromatogram is less than default stall threshold.
Above-mentioned, in a state that the burning source of the gas in fid detector is burnt, baseline is more than default stall threshold, when
When baseline occur and being less than default stall threshold, then illustrate the fray-out of flame of fid detector, from so that may determine that appearance it is flame-out therefore
Barrier.
Embodiment 3：
With reference to Fig. 3, third embodiment of the invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, is based on
Above-mentioned first embodiment shown in FIG. 1, " acquisition FID signal, and real-time chromatogram is drawn according to the FID signal " bag
It includes：
Step S11 gathers FID signal, and passes through data acquisition device and the FID signal is switched to digital signal；
Above-mentioned, in the present embodiment, data acquisition device is data collecting card, is AD capture cards.
It is above-mentioned, it is to be understood that data acquisition (DAQ) refers to simulate sum number from sensor and other Devices to test etc.
Automatically non electrical quantity or electric quantity signal are adopted in word unit under test, is sent in host computer and is analyzed, is handled.Data collecting system is
Flexible, user-defined survey is realized with reference to the measurement software and hardware product based on computer or other dedicated testing platforms
Amount system.Data collecting card, that is, realize data acquisition (DAQ) function computer extender card, can by USB, PXI, PCI,
PCI Express, firewire (IEEE1394), PCMCIA, ISA, Compact Flash, 485,232, Ethernet, various wireless networks
The buses such as network access personal computer.
It is above-mentioned, in the present embodiment, FID signal is switched to by digital signal by AD capture cards.
Above-mentioned, in the present embodiment, data acquisition device is AD capture cards, can turn FID amplifiers analog voltage signal
Digital signal is turned to, and signal is passed into substation software.
Step S12 draws the real-time chromatogram based on chromatographic work station according to the digital signal.
It is above-mentioned, it is to be understood that chromatographic work station is a kind of auxiliary chromatographic apparatus sampling, collects among chromatographic detector
Voltage signal data analyzing and processing work station auxiliary software.
Above-mentioned, chromatographic work station includes many species and version according to function is different with the company of exploitation, for example, can
To include but not limited to following chromatographic work station：N2000 chromatographic work stations, Shimadzu chromatographic work station wear peace chromatographic work station
(ThermoFisher chromatographic work stations), Waters chromatographic work stations, Hitachi chromatographic work station etc..
Embodiment 4：
With reference to Fig. 4, fourth embodiment of the invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, is based on
Above-mentioned 3rd embodiment shown in Fig. 3, described " acquisition FID signal, and pass through data acquisition device and switch to the FID signal
Digital signal " includes：
Step S111 is gathered and is generated the generated FID signal of ionization by the burning source of the gas that burns；
The sample gas of VOCs is generating ionization by being burnt at FID, and then is passing through the polarization electricity in fid detector
Pressure version is collected into the micro current signal that ionization generates.
The FID signal is enlarged into voltage analog by step S112 by built-in high resistance circuit；
It is above-mentioned, FID signal is enlarged by voltage analog by built-in high resistance circuit.
It is above-mentioned, it is to be understood that be all that continuous physical quantity is known as analog quantity in time or numerically.Expression mould
The signal of analog quantity is analog signal.The electronic circuit being operated under analog signal analog circuit.Analog quantity is continuously to measure,
Digital quantity is discontinuous.Reflection is electrical measurement numerical value (such as electric current, voltage).
The voltage analog is switched to the digital signal by step S113 by the data acquisition device.
It is above-mentioned, in the present embodiment, by 24 high-precision AD capture cards, analog quantity is converted into digital quantity.
Embodiment 5：
With reference to Fig. 5, fifth embodiment of the invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, is based on
Above-mentioned first embodiment shown in FIG. 1, it is described " to judge the real-time baseline of the real-time chromatogram whether beyond default flame-out threshold
After value ", further include：
Step S40, if so, lighting a fire again；
Above-mentioned, hydrogen generator can continuously generate the high hydrogen of stable purity, the burning gases as FID.
Above-mentioned, igniting again can again light a fire automatically including system, or manually be lighted a fire again, in this reality
It applies in example, igniting again is lighted a fire automatically for system.
If in addition, the real-time baseline of the real-time chromatogram judges that system operation is normal without departing from default stall threshold.
Whether step S50 after lighting a fire again, judges the real-time baseline still beyond default stall threshold.
After lighting a fire again, by whether judging the real-time baseline still beyond default stall threshold, to lighting a fire again
Whether there are still flame-out failures afterwards to be detected, if occurring, beyond default stall threshold, judging loss of ignition again；If not
Beyond default stall threshold, then it represents that light a fire again successfully.
Embodiment 6：
With reference to Fig. 5, fifth embodiment of the invention provides a kind of VOCs on-line monitoring systems FID and stops working alarm method, is based on
Above-mentioned first embodiment shown in FIG. 1, described " if so, cut-out burning source of the gas, the flame-out warning information of out of service and generation "
Afterwards, further include：
The flame-out warning information is sent to terminal, in order to according to the end by step S60 by transaction processing system
Hold the flame-out flame-out failure of warning information processing got.
The burning source of the gas includes hydrogen and combustion-supporting gas.
The default stall threshold is 0 μ V.
It is above-mentioned, in the present embodiment, terminal can be webpage, intelligent movable equipment, tablet computer, with communication function
MP4, the APP being mountable in the equipment such as intelligent movable equipment, tablet computer etc., operation maintenance personnel can be got flame-out by terminal
Warning information, for example, by web displaying stop working warning information, flame-out warning information pushed by APP softwares, by short message side
Flame-out warning information of formula push etc..After operation maintenance personnel receives flame-out warning information, can carry out at the first time plant maintenance and
The investigation of the flame-out failure of correlation.
Above-mentioned, burning source of the gas includes hydrogen and combustion-supporting gas, wherein, hydrogen is the stabilization high-purity of hydrogen generator generation
Hydrogen, the combustion gas as FID.
Above-mentioned, combustion-supporting gas is zero level air.
It is above-mentioned, it is to be understood that zero level air is a kind of common admixture of gas, its main component is by oxygen and nitrogen
Composition.Total hydrocarbon content is generally required to be less than 2 × 10 in zero level air-6, moisture be less than 5 × 10-6.Zero level air can be used
Carbon dioxide and other trace impurities (such as hydro carbons, moisture, oxynitrides) in different method removing dry airs obtain
.High Purity Nitrogen and high pure oxygen can also be used in defined ratio O in zero level air2/N2：20/80 is formulated.Zero level air is main
As the chromatographic combustion-supporting gas of the carrier gas of gas-sensitive chromatogram instrument or hydrogen flameionization；For preparing normal mixture；It can also be used to school
The zero point of quasi- analytical instrument, ingredient to be measured contained therein and should refer to the total amount of the influential interfering material of measure less than instrument
Show full-scale less than 0.1%.
Embodiment 7：
With reference to Fig. 7, in order to be better understood from technical solution provided by the present invention, the present invention proposes a kind of VOCs on-line monitorings
System FID stops working alarm method, includes the following steps：
1st, start；
2nd, system automatic collection FID electric signals, and pass through 24 high-precision ADs and analog signal is converted into digital signal；
3rd, the real-time chromatogram of chromatographic work station Software on Drawing is passed through；
4th, the baseline of chromatogram is judged, under FID combustion states, baseline is more than 0 μ V, if baseline illustrates FID below 0 μ V
Fray-out of flame.Threshold value refers to judge real-time spectrogram ordinate voltage value when whether FID is flame-out in the present embodiment, is set in the system
It is set to 0 μ V；
Once the 5, there is the situation that baseline is less than threshold value, system is automatically stopped operation, and lights a fire again；
6th, continue to judge that FID lights a fire again according to chromatogram baseline and whether succeed；
7th, after judging that FID stops working for the second time, system is out of service, automatically cuts off hydrogen source and uploads flame-out alarm；
8th, Batch Processing system receives the flame-out warning message of front end substation transmission, and warning message is passed through net automatically
Page, APP push and short message mode are sent to operation maintenance personnel；
9th, operation maintenance personnel receives the report for police service the investigation failure that is on the scene at the first time after information；
10th, system normal operation.
11st, terminate.
In the present invention, judge whether FID stops working by the way of automatic decision baseline level, confirm that flame-out rear system will
Ignition operation is re-started, if lighting a fire will successfully continue to run with, halt system is sent into alarm to fortune after loss of ignition again
Dimension personnel.Sending the mode of alarm has Batch Processing system alarm, APP push, the alarm of mobile phone real-time message etc..The present embodiment leads to
Cross whether automatic decision baseline beyond the mode of default stall threshold judges whether flame-out failure occur, and then halt system and life
Into flame-out warning information, the method that the present embodiment is provided can make administrative staff further according to the flame-out warning information to putting out
Fiery failure is timely handled, and is greatly facilitated regular maintenance of the operation maintenance personnel for VOCs on-line monitoring systems, is improved
The work efficiency of O＆M.
The embodiment 1 of the online FID flame failure warning devices of VOCs：
In addition, with reference to figure 8, in order to which the online FID of the VOCs being better understood from the present invention stop working what alarm method was based on
The online FID flame failure warning devices of VOCs illustrate described device by the online FID flame failure warning devices embodiments 1 of VOCs.
Described device includes such as lower part：
Online gc, FID, AD capture card, substation software, hydrogen generator, data collecting instrument and operation system；Its
In, realize that the online FID of VOCs stop working alarm method especially by following functions and component：
1st, FID is the nucleus module of online gc, and the sample gas for also having VOCs burns at FID and generates ionization, at FID
Polarizing voltage plate be collected into ionization generate micro current signal, be enlarged into voltage analog by built-in high resistant signal, lead to
24 high-precision AD capture cards are crossed, analog quantity is converted into digital quantity.Substation software gathers the digital quantity of AD capture cards in real time
Online chromatogram is drawn, and detects the baseline of monitoring chromatogram in real time.Substation software can also control online gc by RS232
And hydrogen generator.Chromatograph and hydrogen generator will be automatically stopped after flame-out alarm occurs, prevents equipment damage and hydrogen
Gas is accumulated；
2nd, the data of substation software and warning message will be transferred to Batch Processing system, operation system by data collecting instrument
The information of flame-out alarm can be passed to operation maintenance personnel or O＆M people with various ways such as network alarming, APP alarms, SMS alarms
Member；
3rd, online gc is the core of on-line monitoring system, for the dense of Real Time Monitoring sample gas volatile organic matter
Degree.
4th, FID full name are hydrogen flame ionization detectors, are specifically used to detection hydrocarbons, have high sensitivity, it is linear wide,
Stablize the advantages that durable.FID needs combustion gas high-purity hydrogen and combustion-supporting gas zero level air when lighting a fire.FID is equipped with pole at flame both ends
Change battery plate, for collecting the carbonium ion after organic matter ionization；
5th, the present invention uses data collecting card as 24 high-precision AD capture cards, for by FID amplifier analog voltages
Signal is converted into digital signal, and signal is passed to substation software；
6th, substation software is the hinge of VOCs on-line systems, can be by the way that each submodule is controlled to ensure that whole system is normal
Operation, moreover it is possible to serve as the chromatographic work station of online gc, real-time rendering spectrogram, qualitative, quantitative；
7th, hydrogen generator continuously generates the high hydrogen of stable purity, the combustion gas as FID；
8th, data collecting instrument is used to gathering and transmitting data and warning message of substation etc.；
9th, operation system is used to implement data statistics, data analysis, report statement, system administration, remote monitoring, alarm pipe
The functions such as reason.
The modes such as the 10th, the flame-out warning information in the present invention is pushed by webpage, APP softwares, short message pushes are sent
It is prompted to operation maintenance personnel.Operation maintenance personnel carries out plant maintenance and failure row at the first time after receiving flame-out warning message
It looks into.
In addition, the present invention also provides a kind of online FID flame failure warning devices of VOCs, the online FID of VOCs stop working alarm
The online FID of VOCs that device includes memory, processor and storage on a memory and can run on the processor stop working
Alert program, the online FID of VOCs, which stop working, realizes VOCs on-line monitorings as described above when alert program is executed by processor
System FID stop working alarm method the step of.
In addition, the present invention also provides a kind of computer readable storage medium, stored on the computer readable storage medium
There are the online FID of VOCs to stop working alert program, the online FID of VOCs, which stop working when alert program is executed by processor, to be realized as above-mentioned
The VOCs on-line monitoring systems FID stop working alarm method the step of.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes as this process, method, article or system institute inherently
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone,
Computer, server or network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
- The alarm method 1. a kind of VOCs on-line monitoring systems FID stops working, which is characterized in that comprise the following steps：FID signal is gathered, and real-time chromatogram is drawn according to the FID signal；Judge the real-time baseline of the real-time chromatogram whether beyond default stall threshold；If so, cut-out burning source of the gas, the flame-out warning information of out of service and generation.
- The alarm method 2. VOCs on-line monitoring systems FID as described in claim 1 stops working, which is characterized in that described " described in judgement Whether the real-time baseline of real-time chromatogram is beyond default stall threshold " include：Judge whether the real-time baseline of the real-time chromatogram is less than default stall threshold.
- The alarm method 3. VOCs on-line monitoring systems FID as described in claim 1 stops working, which is characterized in that " the acquisition FID Signal, and real-time chromatogram is drawn according to the FID signal " include：FID signal is gathered, and passes through data acquisition device and the FID signal is switched into digital signal；The real-time chromatogram is drawn according to the digital signal based on chromatographic work station.
- The alarm method 4. VOCs on-line monitoring systems FID as claimed in claim 3 stops working, which is characterized in that " the acquisition FID Signal, and pass through data acquisition device and the FID signal is switched into digital signal " include：Acquisition is generated by the burning source of the gas that burns and ionizes generated FID signal；The FID signal is enlarged by voltage analog by built-in high resistance circuit；The voltage analog is switched to by the digital signal by the data acquisition device.
- The alarm method 5. VOCs on-line monitoring systems FID as described in claim 1 stops working, which is characterized in that described " described in judgement Whether the real-time baseline of real-time chromatogram is beyond default stall threshold " after, it further includes：If so, it lights a fire again；After lighting a fire again, judge the real-time baseline whether still beyond default stall threshold.
- The alarm method 6. VOCs on-line monitoring systems FID as claimed in claim 2 stops working, which is characterized in that described " if so, After cut-out burning source of the gas, the flame-out warning information of out of service and generation ", further include：The flame-out warning information is sent to terminal by transaction processing system, in order to the institute got according to the terminal State the flame-out flame-out failure of warning information processing.
- The alarm method 7. VOCs on-line monitoring systems FID as described in claim 1 stops working, which is characterized in that the burning source of the gas Including hydrogen and combustion-supporting gas.
- The alarm method 8. VOCs on-line monitoring systems FID as claimed in claim 2 stops working, which is characterized in that described default flame-out Threshold value is 0 μ V.
- 9. a kind of online FID flame failure warning devices of VOCs, which is characterized in that the online FID flame failure warning devices of VOCs include Memory, processor and storage are on a memory and the online FID of VOCs that can run on the processor stop working alert program, The online FID of VOCs, which stop working when alert program is executed by processor, realizes that the VOCs as described in claim any one of 1-8 is online Monitoring system FID stop working alarm method the step of.
- 10. a kind of computer readable storage medium, which is characterized in that be stored with VOCs on the computer readable storage medium and exist Line FID stops working alert program, and the online FID of VOCs, which stop working when alert program is executed by processor, realizes such as claim 1-8 Any one VOCs on-line monitoring systems FID stop working alarm method the step of.
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