CN206656751U - A kind of continuous on-line monitoring system of flue gas - Google Patents
A kind of continuous on-line monitoring system of flue gas Download PDFInfo
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- CN206656751U CN206656751U CN201720156862.2U CN201720156862U CN206656751U CN 206656751 U CN206656751 U CN 206656751U CN 201720156862 U CN201720156862 U CN 201720156862U CN 206656751 U CN206656751 U CN 206656751U
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Abstract
The utility model discloses a kind of continuous on-line monitoring system of flue gas, including the particulate solid continuous monitoring subsystem in chimney or flue, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem, the particulate solid continuous monitoring subsystem, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem are all connected with data processing with telecommunication system；The gaseous contaminant continuous monitoring subsystem includes sampling probe, heating tape, flue gas pretreatment system and the infrared gas analyser with blowback and heating being sequentially connected, and the gas sampling of the gaseous contaminant continuous monitoring subsystem, blowback, filter dirt, drainage are controlled by PLC control system.The utility model coordinates telecommunication and data acquisition unit, has the features such as remote fault diagnosis, powerful software function, using flexible by being monitored to particulate solid, gaseous contaminant and Gas Parameters.
Description
Technical field
Field is the utility model is related to, relates generally to a kind of continuous on-line monitoring system of flue gas.
Background technology
To the particulate matter of atmosphere pollution source emission (also referred to as flue dust), gaseous contaminant (including sulfur dioxide, nitrogen oxides
Deng) device of concentration and total emission volumn continuous monitoring is carried out, it is referred to as " flue gas discharge continuous monitoring system " or " flue gas is supervised online
Examining system ", in the world general address CEMS (Continuous Emission Monitoring System).Fume emission connects
Continuous monitoring system can be used not only for emission compliance monitoring and blowdown metering use, may be simultaneously used for equipment (dedusting, desulfurization,
Combustion Operation of Boilers) running status inspection, fault diagnosis etc.；Thus by more and more extensive use.
With the enhancing of people's environmental protection consciousness, various countries require more and more higher to the limit value of fume emission, particularly pair
Waste incineration factory and the pollutant emission in power plant, this conventional fume emission monitoring system can not be met to use need
Ask.Such as：Existing flue gas monitoring system architecture is complicated, and Monitoring Data is single, it is impossible to which flue gas is comprehensively monitored；Gas
After being sampled out of flue and outside air easily produces the temperature difference, separates out moisture, influences SO2Concentration is monitored Deng soluble gas, simultaneously
Also serious corrosion can be caused to equipment；Filtered in monitoring process not enough finely, usually remaining many dust and moisture influences
Monitoring effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of to particulate solid, gaseous contaminant and flue gas
Parameter is monitored, and has remote fault diagnosis, powerful software function, using flexible, autgmentability are strong, accuracy is high, sexual valence
Than the high continuous on-line monitoring system of flue gas.
Technical problem to be solved in the utility model can be adopted the following technical scheme that to realize：
A kind of continuous on-line monitoring system of flue gas, including particulate solid continuous monitoring in chimney or flue
System, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem, the particulate solid continuous monitoring
Subsystem, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem all with data processing and telecommunication
System is connected；
Characterized in that, the particulate solid continuous monitoring subsystem includes emission measurement instrument；
The gaseous contaminant continuous monitoring subsystem includes the sampling probe with blowback and heating, the heat tracing being sequentially connected
Band, flue gas pretreatment system and infrared gas analyser, verification Standard Gases, institute are connected with the flue gas pretreatment system side
State the gas sampling of gaseous contaminant continuous monitoring subsystem, blowback, filter dirt, drainage are controlled by PLC control system；
The Gas Parameters continuous monitoring subsystem includes the flow monitoring instrument and flue gas being connected with flue gas flow rate transmitter
The connected temperature monitor of temperature transmitter, the pressure monitor being connected with flue gas pressures transmitter and smoke moisture transmitter
Connected moisture monitor；
The data processing and telecommunication system include data acquisition unit, system control interface and the system being sequentially connected
Control process device.
In a preferred embodiment of the present utility model, the flue gas pretreatment system includes the blowback control being sequentially connected
Case, primary filter, condenser and accurate filter processed, the primary filter, condenser side are connected with drainage system；
The blowback control cabinet is arranged between 2 heating tapes, and the blowback control cabinet, drainage system side are provided with compression
Air-in, near the compressed air input port be provided with manual ball valve is controlled to compressed air.
In a preferred embodiment of the present utility model, the system control process device is an industrial computer；
Remote communication interface, A/D interfaces, printer and display are provided with the system control process device.
In a preferred embodiment of the present utility model, the sampling probe is by sampling pipe, main cavity, heating isothermal
Body, ceramic high-precision filter, the letter of mounting flange set, protective cover, temperature controller part composition；The heating tape is every meter of invariable power
Heat tracing, its heat tracing temperature are controlled by the temperature controller；The infrared gas analyser is the gaseous contaminant continuous monitoring
The core component of subsystem, for analyzing SO2,NOX,O2Gas.
In a preferred embodiment of the present utility model, the industrial computer have 2 Intel Duo Processors,
19 cun of flat-screen CRT monitors, 250G hard disks, 1G internal memories, 2 standard serial mouths and 1 spp.
In a preferred embodiment of the present utility model, the blowback control cabinet power supply is by PLC control system control
System, the primary filter are adsorbed by strainer screen, can be with Chalk-dust filtering and a small amount of moisture, the accurate filter essence
Degree is up to 0.1-0.2 microns；The sampling pipe external diameter is 25mm, a length of 500mm, the mounting flange cover simple external diameter for 70mm,
A length of 300mm, the temperature controller and the main body integrated design of the sampling probe.
In a preferred embodiment of the present utility model, the casing of the blowback control cabinet is for white and by steel plastic-spraying
Form, the primary filter is made up of polytetrafluoroethylmaterial material, joint of PVDF materials, and the casing of the condenser is white
And formed by steel plastic-spraying, the drainage system liquid contact portion is all corrosion resistant non-metallic material, the secondary filter
Device is made up of PVDF materials, filter core is ceramic diamond spar.
In a preferred embodiment of the present utility model, the part that the sampling probe contacts with sample gas all uses
316 stainless steel materials are processed into, and the protective cover and temperature controller case are manufactured using LF21 rustproof aluminium sheets；The heating tape is
Polyfluortetraethylene pipe, insulating sections are made up of quartzy cotton material, and crust is made up of silastic material.
The beneficial effects of the utility model are：A kind of continuous on-line monitoring system of flue gas, by particulate solid, gaseous state
Pollutant and Gas Parameters are monitored, and coordinate telecommunication and data acquisition unit, have remote fault diagnosis, powerful
Software function, the features such as using flexible；Gaseous contaminant continuous monitoring subsystem set invariable power heating tape, prevent gas from
With outside air bad student's temperature difference after being sampled in flue, moisture is separated out, influences SO2Concentration is monitored Deng soluble gas, improves monitoring
The degree of accuracy.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the continuous on-line monitoring system of flue gas of the utility model.
Fig. 2 is a kind of knot of the gaseous contaminant continuous monitoring subsystem of the continuous on-line monitoring system of flue gas of the utility model
Structure schematic diagram.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1 to Fig. 2, what is provided in figure is a kind of continuous on-line monitoring system of flue gas, including installed in chimney or cigarette
Particulate solid continuous monitoring subsystem 100, gaseous contaminant continuous monitoring subsystem 200 and Gas Parameters in road are continuously supervised
Survey subsystem 300, particulate solid continuous monitoring subsystem 100, gaseous contaminant continuous monitoring subsystem 200 and Gas Parameters
Continuous monitoring subsystem 300 is all connected with data processing with telecommunication system 400.By to particulate solid, gaseous contamination
Thing and Gas Parameters are monitored, and coordinate data processing and telecommunication system 400, have remote fault diagnosis, powerful
Software function, the features such as using flexible.
Particulate solid continuous monitoring subsystem 100 includes emission measurement instrument 110, can supporting flue gas monitoring system, also may be used
Independent one or several connects into a set of monitoring smoke dust network, shares a foreground.Emission measurement instrument 110 uses laser back scattering
Principle, be not afraid of flue mechanical oscillation and flue-gas temperature inequality caused by refractive index it is uneven, the beam wobbling so as to caused by；It is single-ended
Installation, without centering；Exported using standard industry normalized current, it is easy to connect；Instrument overall power is very small, and about 5W is left
It is right；Measurement zone size can be with customized under special requirement condition.
Gaseous contaminant continuous monitoring subsystem 200 includes the sampling probe 210 with blowback and heating, the companion being sequentially connected
The torrid zone 220, flue gas pretreatment system 230 and infrared gas analyser 240, the gas of gaseous contaminant continuous monitoring subsystem 200
Sampler body, blowback, filter dirt, drainage etc. are controlled by PLC control system 250.Sampling probe 210 by sampling pipe, main cavity,
Heat isothermal body, ceramic high-precision filter, the letter of mounting flange set, protective cover, temperature controller part composition.
Sampling probe 210 is simultaneously to implement the sampling apparatus of temperature control with electrical heating heat tracing function, energy self-heating.Sampling is visited
First 210 forbid using in the occasion for having explosive gas atmosphere, and the on-Line Voltage of its power supply is 220VAC/50Hz, power
For 500W；Temperature≤600 DEG C of sample gas, dustiness≤100g/m3；The environment temperature of sampling is -15~45 DEG C；Sampling probe
210 parts contacted with sample gas are all processed into using 316 stainless steel materials, and resistance to corrosion is very strong under hot conditions；
Encapsulant is fluorubber.In the presence of aspiration pump, detected sample gas enters sampling by the sampling pipe in insertion sample tube wall and visited
First 210 cavity, sample gas delivery outlet is flowed to through dust filter unit；The temperature of sample gas is all the time in higher in sampling process
State, (temperature controller highest temperature control setting value is 120 DEG C) makes the water in sample gas is unlikely to condense, so as to significantly improve
The condition of work of filter；To ensure not condense in the process, the temperature control value of setting, it should be higher by 20 than its dew point value~
30℃.Sampling pipe external diameter is 25mm, a length of 500mm；It can integrally be pulled out from device during filter element replacing, greatly
Shorten the time safeguarded and changed, and reduce labor intensity；It is 70mm, a length of 300mm that mounting flange, which covers simple external diameter,；Temperature controller with
The main body integrated design of sampling probe.Protective cover and temperature controller case are manufactured using LF21 rustproof aluminium sheets, thus the device is complete
Field work environment can be competent at；It is compact-sized by temperature controller and main body integrated design, it is easy to operate.
Heating tape 220 is every meter of heat tracing of invariable power, and also not interfering with other positions even if centre failure heats, and ensures
The continuity of half heat；Its heat tracing temperature is controlled by temperature controller, and maintenance is small, easy to operate；The heating tape is polytetrafluoroethylene (PTFE)
Pipe, insulating sections are made up of quartzy cotton material, and crust is made up of silastic material；Heat tracing temperature≤200 DEG C of heating tape, length
≤ 40 meters；The on-Line Voltage of power supply is 220VAC/50Hz, and power 25W, the temperature of environment is -15~45 DEG C.
Flue gas pretreatment system 230 includes blowback control cabinet 231, primary filter 232, the condenser 233 being sequentially connected
And accurate filter 234, primary filter 232, the side of condenser 233 are connected with drainage system 235；In blowback control cabinet
231st, the side of drainage system 235 is provided with compressed air input port 2311, and compressed air is that oil-free is anhydrous, pressure>0.4Mpa, Q
=30L/min pure source of the gas, first manual ball valve 2312, the second manual ball are provided near compressed air input port 2311
Valve 2351 is controlled to compressed air.
Blowback control cabinet 231 is used for the blowback to sampling probe 210, prevents sampling probe 210 from blocking；Blowback control cabinet
231 are arranged between 2 heating tapes 220 and are provided with pneumatic ball valve 2313, and the power supply of blowback control cabinet 231 is controlled by PLC
System 250 controls；PLC control system 250 by control pneumatic ball valve 2313 conducting or by, come control the collection of sample gas and
Stop；Purged by the pulsed whirlwind of PLC control system 250, can effectively remove the dust of the filter core of sampling probe 210, reach
To the low-maintenance of sampling probe 210, high efficiency feature.Be provided with air accumulator 2314 in blowback control cabinet 231, air accumulator 2314 with
First manual ball valve 2312 connects；The each blowback pressure >=0.4MPa of air accumulator 2314, avoids that site pressure is unstable, tolerance
It is small.The voltage of blowback control cabinet 231 is 220V, and environment temperature is 5~45 DEG C；The casing of blowback control cabinet 231 is for white and by steel
Matter plastic-spraying forms.
Primary filter 232 is the second level filtering after sampling probe 210, and it is adsorbed by strainer screen, can mistake
Filter dust and a small amount of moisture；Primary filter 232 is made up of polytetrafluoroethylmaterial material, joint of PVDF materials.Condenser 233
The effective concentration of component that reduces is lost in, and the gas ensured into analyzer is pure, is dried, and its casing is for white and by steel
Plastic-spraying forms.Accurate filter 234 is made up of PVDF materials, filter core is ceramic diamond spar, and precision is up to 0.1-0.2 microns.Draining
The liquid contact portion of system 235 is all corrosion resistant non-metallic material.Infrared gas analyser 240 is that gaseous contaminant is continuously supervised
The core component of subsystem 200 is surveyed, for analyzing SO2,NOX,O2Deng gas.
Gas Parameters continuous monitoring subsystem 300 include be connected with flue gas flow rate transmitter 310 flow monitoring instrument 320,
The temperature monitor 340 being connected with flue-gas temperature transmitter 330, the pressure monitor being connected with flue gas pressures transmitter 350
360th, the moisture monitor 380 being connected with smoke moisture transmitter 370.
Data processing and telecommunication system 400 include data acquisition unit 410, the system control interface 420 being sequentially connected
With system control process device 430, remote communication interface 440, A/D interfaces are provided with system control process device 430
450th, printer 460 and display 470；System control process device 430 is an industrial computer, and industrial computer has 2
Individual Intel Duo Processors, 19 cun of flat-screen CRT monitors, 250G hard disks, 1G internal memories, 2 standard serial mouths and 1 standard parallel
Mouthful.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the spirit and scope of the utility model is not departed from
There are various changes and modifications, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model will
Protection domain is asked to be defined by appended claims and coordinate.
Claims (8)
1. a kind of continuous on-line monitoring system of flue gas, including the particulate solid continuous monitoring subsystem in chimney or flue
System, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem, particulate solid continuous monitoring
System, gaseous contaminant continuous monitoring subsystem and Gas Parameters continuous monitoring subsystem all with data processing and telecommunication system
System is connected；
Characterized in that, the particulate solid continuous monitoring subsystem includes emission measurement instrument；
The gaseous contaminant continuous monitoring subsystem include be sequentially connected with blowback and heating sampling probe, heating tape,
Flue gas pretreatment system and infrared gas analyser, verification Standard Gases are connected with the flue gas pretreatment system side, it is described
The gas sampling of gaseous contaminant continuous monitoring subsystem, blowback, filter dirt, drainage are controlled by PLC control system；
The Gas Parameters continuous monitoring subsystem includes flow monitoring instrument and the flue-gas temperature being connected with flue gas flow rate transmitter
The connected temperature monitor of transmitter, the pressure monitor being connected with flue gas pressures transmitter, it is connected with smoke moisture transmitter
Moisture monitor；
The data acquisition unit, system control interface and system that the data processing includes being sequentially connected with telecommunication system control
Processing unit.
A kind of 2. continuous on-line monitoring system of flue gas as claimed in claim 1, it is characterised in that the flue gas pretreatment system
Including blowback control cabinet, primary filter, condenser and the accurate filter being sequentially connected, the primary filter, condensation
Device side is connected with drainage system；The blowback control cabinet is arranged between 2 heating tapes, the blowback control cabinet,
Drainage system side is provided with compressed air input port, and manual ball valve is provided near the compressed air input port to compression
Air is controlled.
A kind of 3. continuous on-line monitoring system of flue gas as claimed in claim 1, it is characterised in that the system control process dress
It is set to an industrial computer；Remote communication interface, A/D interfaces, printer are provided with the system control process device
And display.
4. a kind of continuous on-line monitoring system of flue gas as claimed in claim 2, it is characterised in that the sampling probe is by sampling
Pipe, main cavity, heating isothermal body, ceramic high-precision filter, the letter of mounting flange set, protective cover, temperature controller part composition；It is described
Heating tape is every meter of heat tracing of invariable power, and its heat tracing temperature is controlled by the temperature controller；The infrared gas analyser is described
The core component of gaseous contaminant continuous monitoring subsystem, for analyzing SO2,NOX,O2Gas.
A kind of 5. continuous on-line monitoring system of flue gas as claimed in claim 3, it is characterised in that the industrial computer tool
There are 2 Intel Duo Processors, 19 cun of flat-screen CRT monitors, 250G hard disks, 1G internal memories, 2 standard serial mouths and 1 standard simultaneously
Row mouth.
A kind of 6. continuous on-line monitoring system of flue gas as claimed in claim 4, it is characterised in that the blowback control cabinet power supply
Power supply is controlled by PLC control system, and the primary filter is adsorbed by strainer screen, can be with Chalk-dust filtering and a small amount of water
Point, the accurate filter precision is up to 0.1-0.2 microns；The sampling pipe external diameter is 25mm, a length of 500mm, the installation
Flange sleeve letter external diameter is 70mm, a length of 300mm, the temperature controller and the main body integrated design of the sampling probe.
A kind of 7. continuous on-line monitoring system of flue gas as claimed in claim 2, it is characterised in that the case of the blowback control cabinet
Body is formed for white and by steel plastic-spraying, and the primary filter is made up of polytetrafluoroethylmaterial material, joint of PVDF materials, institute
The casing of condenser is stated as white and is formed by steel plastic-spraying, the drainage system liquid contact portion is all corrosion resistant non-gold
Belong to material, the accurate filter is made up of PVDF materials, filter core is ceramic diamond spar.
8. a kind of continuous on-line monitoring system of flue gas as claimed in claim 4, it is characterised in that the sampling probe and sample
The part of gas contact is all processed into using 316 stainless steel materials, and the protective cover and temperature controller case use LF21 antirusts
Aluminium sheet manufactures；The heating tape is polyfluortetraethylene pipe, and insulating sections are made up of quartzy cotton material, and crust is by silastic material system
Into.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720156862.2U CN206656751U (en) | 2017-02-21 | 2017-02-21 | A kind of continuous on-line monitoring system of flue gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720156862.2U CN206656751U (en) | 2017-02-21 | 2017-02-21 | A kind of continuous on-line monitoring system of flue gas |
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| CN206656751U true CN206656751U (en) | 2017-11-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840264A (en) * | 2017-02-21 | 2017-06-13 | 上海宝英光电科技有限公司 | A kind of continuous on-line monitoring system of flue gas |
| CN108896455A (en) * | 2018-04-03 | 2018-11-27 | 天津世纪动力科技发展有限公司 | A kind of boiler flue smoke monitoring device |
-
2017
- 2017-02-21 CN CN201720156862.2U patent/CN206656751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840264A (en) * | 2017-02-21 | 2017-06-13 | 上海宝英光电科技有限公司 | A kind of continuous on-line monitoring system of flue gas |
| CN108896455A (en) * | 2018-04-03 | 2018-11-27 | 天津世纪动力科技发展有限公司 | A kind of boiler flue smoke monitoring device |
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