CN207232734U - Flue gas automatic monitored control system - Google Patents
Flue gas automatic monitored control system Download PDFInfo
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- CN207232734U CN207232734U CN201721014515.2U CN201721014515U CN207232734U CN 207232734 U CN207232734 U CN 207232734U CN 201721014515 U CN201721014515 U CN 201721014515U CN 207232734 U CN207232734 U CN 207232734U
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- flue gas
- filter
- control system
- monitored control
- controller
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Abstract
The utility model provides a kind of flue gas automatic monitored control system, for the component of monitoring analysis flue gas, including smoke inlet pipelines, filter, back-blowing device and controller；The input terminal of smoke inlet pipelines and filter connects, and the output terminal of back-blowing device and filter connects；Controller controls back-blowing device to filter blowback compressed air.The utility model can start multi-component gas mixture process according to the analysis result of oxygen content in flue, prevent that compressed air is blended in interference multi-component gas mixture result in flue gas in blowback.
Description
Technical field
The utility model belongs to flue gas inspection technical field, and in particular to a kind of flue gas automatic monitored control system.
Background technology
Flue gas automatic monitored control system (CEMS) is to carry out concentration to the gaseous pollutant and particulate matter of atmosphere pollution source emission
The device of authorities is real-time transmitted to total emission volumn continuous monitoring and by information, also known as " fume emission continuous monitoring system
System " or " smoke on-line monitoring system ".The exhaust emission of flue gas automatic monitored control system monitoring includes SO2、NQx、HCL、CO、CO2、
And particulate matter.
A most important component is the analytical instrument for smoke components measurement in flue gas automatic monitored control system.Due to cigarette
The analytical instrument of gas composition measurement there are certain requirements the cleanliness factor of flue gas, therefore the flue gas given off in industrial production has to
It is out of dust by the smoke filter filtering in smoke sampling device, detection of exhaust gas compositions could be carried out.So, in flue gas
Particulate matter is easily accumulated in smoke filter and its neighbouring flue, for a long time, or even can block flue and flue gas mistake
Filter.
In order to recover the filtering function of smoke filter, it is necessary to use compressed air to be opened as wind regime within a certain period of time
Dynamic blowing function, i.e., carry out blowback to smoke filter and neighbouring flue, the compressed air opposite for flow of flue gas direction
Sweep, take away particulate matter in smoke filter and its front end smoke canal, dust etc., recover the filtering function of smoke filter.But
During blowback and after blowback, compressed air is will be filled with smoke filter and its neighbouring flue.If at this time, flue gas into
Divide the analytical instrument of measurement to analyze the gas in flue, then can be disturbed be subject to compressed air.Such as in compressed air
The content of oxygen is about 21%, and measuring oxygen content at this time will drastically become larger, and cause superscalar data.
Have in the prior art and the software with delay control function is utilized after blowback, the analysis of control smoke components measurement
Instrument postpones to carry out extraction detection to gas in 1 minute after blowback.But this constant time lag, it is difficult to ensure compressed air
Clean, the influence of not compressed air is excluded.In this state, analysis meeting is carried out to the gas componant in flue to go out
Now very big error, measurement effect are highly unstable.
Patent smoke on-line monitoring system and monitoring method (day for announcing 2016.01.13, notification number CN104407161B) are public
Opened a kind of smoke on-line monitoring system and monitoring method, including Pitotmeter, flue gas sampler, particle monitoring instrument,
Pipeline and calibration pipeline are sampled, Pitotmeter, flue gas sampler and particle monitoring instrument are both provided with blowback sweeping device, respectively
The signal receiving end of blowback sweeping device is connected with central controller respectively, passes through each blowback sweeping device timing of central controller controls
Purged.Flue gas sampler flue gas is acquired after successively by the first refrigerator, pneumatic filter, the second refrigerator and
Membrane filter, each device carry out cooling filtering to collection flue gas, and the remaining flue gas finally obtained is passed through Multi-Component Gas Analyzing
Instrument carries out analysis detection.When being swept in the patent to the progress blowback of flue gas sampler anti-purge system, after being simply turned off flue gas sampler
The cut-off electromagnetic valve of connection is held, avoids compressed air from being blown into sampling pipeline, but do not done to the compressed air in flue gas sampler
Any processing, after blowback, cut-off electromagnetic valve is opened, and the flue gas in flue gas sampler enters with compressed air mixture to be adopted
When sample pipeline carries out analysis detection, smoke components measurement can be caused large error occur.
Therefore it is simple in structure to be badly in need of one kind, design rationally, can be monitored to compressing air concentration situation in flue, and root
According to the flue gas automatic monitored control system of monitoring result delay start fume component analysis device.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of flue gas automatic monitored control system, which can be according to
The analysis result of oxygen content starts multi-component gas mixture process in flue, prevents that compressed air is blended in cigarette in blowback
Multi-component gas mixture result is disturbed in gas.
The utility model provides following technical solution：
A kind of flue gas automatic monitored control system, for the component of monitoring analysis flue gas,
Including smoke inlet pipelines, filter, back-blowing device and controller；
The input terminal of smoke inlet pipelines and filter connects；
The output terminal of back-blowing device and filter connects；
Controller controls back-blowing device to filter blowback compressed air.
Preferably, flue gas automatic monitored control system further includes pressure sensor, and pressure sensor is arranged in filter, pressure
Pressure information in Sensor monitoring filter；Pressure information is sent to controller by pressure sensor.
Preferably, flue gas automatic monitored control system further includes sampling pump, and sampling pump is connected with filter output terminal, samples pumping
The flue gas for taking filter output terminal to export.
Preferably, flue gas automatic monitored control system further includes oxygen gas component analytical equipment, oxygen gas component analytical equipment and sampling
The output terminal connection of pump, the oxygen content in flue gas that oxygen gas component analytical equipment exports sampling pump carry out analysis and form oxygen
Oxygen content result is sent to controller by content results, oxygen gas component analytical equipment.
Preferably, flue gas automatic monitored control system further includes more gas composition analysis devices, more gas composition analysis devices with
The output terminal connection of sampling pump, the multiple gases content in flue gas that more gas composition analysis devices export sampling pump are divided
Analysis forms more gas contents as a result, the open and close of more gas composition analysis devices are controlled by the controller.
Preferably, when oxygen content result is less than 100%~130% of oxygen content in former flue gas, controller starts more
Gas composition analysis device.
Preferably, controller is PLC controller.
Preferably, flue gas automatic monitored control system further includes power supply, and power supply provides electric power for flue gas automatic monitored control system.
The beneficial effects of the utility model are：
1st, the utility model is simple in structure, easy for installation, of low cost.
2nd, the utility model is sent to PLC controller by monitoring the pressure information in filter, and by pressure information, by
PLC controller judges, starts back-blowing device when pressure information is excessive, to filter blowback compressed air, by filter and cigarette
Particulate matter, the dust deposited in road is blown away, and recovers the unimpeded of filter；PLC controller judges, when pressure information reaches desired value
When close back-blowing device.By the cooperation of pressure sensor and PLC controller, filter and flue can be carried out when necessary anti-
Processing is blown, prevents filter and flue from being blocked by particulate matter, dust.
3rd, the oxygen content in the flue gas exported in the utility model by oxygen gas component analytical equipment to filter divides
Analysis forms oxygen content as a result, oxygen content result is sent to controller by oxygen gas component analytical equipment.During blowback,
Compressed air is entered in filter and flue, if carrying out more gas composition analysis to the flue gas for being mixed with compressed air,
Easily produce large error.Due to the content of oxygen in compressed air be it is certain reach 21% or so, and cigarette in industrial production
The oxygen content of gas also compares fixation, so may determine that compression whether is mixed in flue gas by the oxygen content monitored in flue gas
Air and the substantially content for mixing compressed air.
4th, controller obtains oxygen content as a result, containing when oxygen content result is less than oxygen in former flue gas in the utility model
Amount 100%~130% when just start more gas composition analysis devices.The oxygen in oxygen content result is less than less than former flue gas
Content 100%~130% when, that is to say, that the oxygen in the flue gas of the oxygen content in flue gas and unmixed compressed air at this time
Gas content maintains an equal level or substantially maintains an equal level, it can be determined that the compressed air in flue gas has been drained off at this time or major part empties, at this time
More gas componants in analysis flue gas can obtain being more conform with more gas componant knots in the raw flue gas of unmixed compressed air
Fruit.
5th, controller uses PLC controller in the utility model, facilitates programming Control.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.In the accompanying drawings：
Fig. 1 is the structure diagram connected between the utility model critical piece；
Fig. 2 is the operating procedure schematic diagram that flue gas monitors automatically in the utility model.
In figure mark for：1st, smoke inlet pipelines；2nd, filter；3rd, back-blowing device；4th, controller；5th, pressure sensor；
6th, oxygen gas component analytical equipment；7th, more gas composition analysis devices；8th, power supply；9 sampling pumps.
Embodiment
The preferred embodiment of the utility model is described below in conjunction with the accompanying drawings.
As shown in Figure 1, the utility model provides a kind of flue gas automatic monitored control system, for the component of monitoring analysis flue gas,
Including smoke inlet pipelines 1, filter 2, back-blowing device 3 and controller 4；Smoke inlet pipelines 1 and the input terminal of filter 2 connect
Connect；Back-blowing device 3 is connected with the output terminal of filter 2；Controller 4 controls back-blowing device 3 to 2 blowback compressed air of filter.
Controller 4 is PLC controller.
Specifically, flue gas automatic monitored control system further includes pressure sensor 5, pressure sensor 5 is arranged in filter 2,
Pressure sensor 5 monitors the pressure information in filter 2；Pressure information is sent to controller 4 by pressure sensor 5.
Specifically, flue gas automatic monitored control system further includes sampling pump 9, sampling pump 9 is connected with 2 output terminal of filter, sampling
Pump 9 extracts the flue gas of 2 output terminal of filter output.
Specifically, flue gas automatic monitored control system further includes oxygen gas component analytical equipment 6, oxygen gas component analytical equipment 6 and mistake
The output terminal connection of sampling pump 9, the oxygen content in flue gas that oxygen gas component analytical equipment 6 exports sampling pump 9 are analyzed
Oxygen content is formed as a result, oxygen content result is sent to controller 4 by oxygen gas component analytical equipment 6.
Specifically, flue gas automatic monitored control system further includes more gas composition analysis devices 7, more gas composition analysis devices 7
It is connected with the output terminal of sampling pump 9, the multiple gases content in flue gas that more gas composition analysis devices 7 export sampling pump 9
Carry out analysis and form more gas contents as a result, the open and close of more gas composition analysis devices 7 are controlled by controller 4.
Specifically, when oxygen content result is less than 100%~130% of oxygen content in former flue gas, controller 4 starts more
Gas composition analysis device 7.
Specifically, flue gas automatic monitored control system further includes power supply 8, power supply 8 provides electric power for flue gas automatic monitored control system.
As shown in Fig. 2, the utility model operating process is：Flue gas enters filter 2, filtering by smoke inlet pipelines 1
Device 2 filters flue gas.Pressure sensor 5 in filter 2 monitors the pressure information in filter 2 and pressure information is sent to control
Device 4 processed.Controller 4 judges to start back-blowing device 3 when the pressure information in filter 2 is excessive；Back-blowing device 3 to filter 2 with
And 1 blowback compressed air of smoke inlet pipelines；Controller 4 judges to close when the pressure information in filter 2 reaches desired value anti-
Blowing apparatus 3.Sampling pump 9 extracts the flue gas that filter 2 exports, and oxygen gas component analytical equipment 6 analyzes the oxygen content in flue gas, raw
Into oxygen content as a result, and oxygen content result is sent to controller 4；Controller 4 is less than original cigarette until oxygen content result
In gas oxygen content 100%~130% when just start more gas composition analysis devices 7, start more gas composition analysis.
In another embodiment of the utility model, controller 4 can set the blowback time cycle, and controller 4 controls blowback dress
Put 3 and blowback periodically periodically is carried out to smoke inlet pipelines 1 and filter 2 within each blowback time cycle.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on, should be included in this practicality
Within new protection domain.
Claims (8)
1. a kind of flue gas automatic monitored control system, the component for monitoring analysis flue gas, it is characterised in that
Including smoke inlet pipelines, filter, back-blowing device and controller；
The smoke inlet pipelines are connected with the input terminal of the filter；
The back-blowing device is connected with the output terminal of the filter；
The controller controls the back-blowing device to the filter blowback compressed air.
2. flue gas automatic monitored control system according to claim 1, it is characterised in that further include pressure sensor, the pressure
Force snesor is arranged in the filter, the pressure information described in the pressure sensor monitoring in filter；The pressure
The pressure information is sent to the controller by sensor.
3. flue gas automatic monitored control system according to claim 2, it is characterised in that further include sampling pump, the sampling pump
It is connected with the filter output terminal, the sampling pump extracts the flue gas of the filter output terminal output.
4. flue gas automatic monitored control system according to claim 3, it is characterised in that oxygen gas component analytical equipment is further included,
The oxygen gas component analytical equipment is connected with the output terminal of the sampling pump, and the oxygen gas component analytical equipment is to the sampling pump
Oxygen content in the flue gas of output carries out analysis and forms oxygen content as a result, the oxygen gas component analytical equipment is by described in
Oxygen content result is sent to the controller.
5. flue gas automatic monitored control system according to claim 4, it is characterised in that further include more gas composition analysis dresses
Put, more gas composition analysis devices are connected with the output terminal of the sampling pump, and more gas composition analysis devices are to institute
State sampling pump output the flue gas in multiple gases content carry out analysis form more gas contents as a result, more gases into
The open and close of analytical equipment are divided to be controlled by the controller.
6. flue gas automatic monitored control system according to claim 5, it is characterised in that the oxygen content result is less than former cigarette
In gas oxygen content 100%~130% when, the controller starts more gas composition analysis devices.
7. flue gas automatic monitored control system according to claim 6, it is characterised in that the controller is PLC controller.
8. flue gas automatic monitored control system according to claim 7, it is characterised in that further include power supply, the power supply is institute
State flue gas automatic monitored control system and electric power is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721014515.2U CN207232734U (en) | 2017-08-11 | 2017-08-11 | Flue gas automatic monitored control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721014515.2U CN207232734U (en) | 2017-08-11 | 2017-08-11 | Flue gas automatic monitored control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232734U true CN207232734U (en) | 2018-04-13 |
Family
ID=61857925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721014515.2U Expired - Fee Related CN207232734U (en) | 2017-08-11 | 2017-08-11 | Flue gas automatic monitored control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207232734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608300A (en) * | 2017-08-11 | 2018-01-19 | 安徽省碧水电子技术有限公司 | Flue gas automatic monitored control system and its method |
-
2017
- 2017-08-11 CN CN201721014515.2U patent/CN207232734U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608300A (en) * | 2017-08-11 | 2018-01-19 | 安徽省碧水电子技术有限公司 | Flue gas automatic monitored control system and its method |
| CN107608300B (en) * | 2017-08-11 | 2023-11-07 | 安徽省碧水电子技术有限公司 | Automatic flue gas monitoring system and method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20210811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |