CN116381135A - Pollution emission monitoring system - Google Patents
Pollution emission monitoring system Download PDFInfo
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- CN116381135A CN116381135A CN202310183865.5A CN202310183865A CN116381135A CN 116381135 A CN116381135 A CN 116381135A CN 202310183865 A CN202310183865 A CN 202310183865A CN 116381135 A CN116381135 A CN 116381135A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 144
- 238000005070 sampling Methods 0.000 claims abstract description 100
- 239000007789 gas Substances 0.000 claims abstract description 84
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000003546 flue gas Substances 0.000 claims abstract description 71
- 238000002156 mixing Methods 0.000 claims abstract description 68
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 50
- 231100000719 pollutant Toxicity 0.000 claims abstract description 50
- 239000012080 ambient air Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000013618 particulate matter Substances 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims description 38
- 238000012806 monitoring device Methods 0.000 claims description 20
- 238000004458 analytical method Methods 0.000 claims description 16
- 238000007405 data analysis Methods 0.000 claims description 12
- 238000013523 data management Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a pollution emission monitoring system, which relates to the field of environmental protection and comprises: the gas collecting hood is used for collecting ambient air and flue gas discharged from the flue gas discharge pipe; the mixing pipeline is connected with the gas collecting hood at one end and is used for mixing the ambient air and the flue gas collected by the gas collecting hood; the utility model provides a monitoring pipeline, the one end of monitoring pipeline with the mixing pipeline is kept away from the one end of gas collecting channel is connected, be provided with the sampling mouth in the monitoring pipeline, the sampling mouth includes first sampling mouth and second sampling mouth, first sampling mouth with the second sampling mouth is used for right gaseous sampling in the monitoring pipeline, first sampling mouth with be provided with particulate filter between the second sampling mouth, particulate filter is used for filtering particulate matter that contains in the gaseous monitoring pipeline. The invention can realize the effect that the monitoring result can more accurately reflect the content of various pollutants in the flue gas.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a pollution emission monitoring system.
Background
The discharge flue gas rate and the flue gas temperature of the civil stove are unstable, and the concentration of pollutants has larger fluctuation. In the existing pollution emission monitoring technology, the discharged smoke is directly sampled for pollution emission monitoring, but the error of the monitoring result obtained by directly sampling the discharged smoke is large due to fluctuation of the pollutant concentration of the smoke, so that the pollutant content in the smoke cannot be accurately reflected.
Disclosure of Invention
The invention provides a pollution emission monitoring system which is used for solving the problems that in the prior art, the error of a pollutant monitoring result in smoke is large, and the pollutant content in the smoke cannot be accurately reflected.
The invention provides a pollution emission monitoring system, comprising:
the gas collecting hood is used for collecting ambient air and flue gas discharged from the flue gas discharge pipe;
the mixing pipeline is connected with the gas collecting hood at one end and is used for mixing the ambient air and the flue gas collected by the gas collecting hood;
the utility model provides a monitoring pipeline, the one end of monitoring pipeline with the mixing pipeline is kept away from the one end of gas collecting channel is connected, be provided with the sampling mouth in the monitoring pipeline, the sampling mouth includes first sampling mouth and second sampling mouth, first sampling mouth with the second sampling mouth is used for right gaseous sampling in the monitoring pipeline, first sampling mouth with be provided with particulate filter between the second sampling mouth, particulate filter is used for filtering particulate matter that contains in the gaseous monitoring pipeline.
According to the pollution emission monitoring system provided by the invention, further, a first fan is arranged at one end, close to the gas collecting hood, in the mixing pipeline, and the first fan is used for sucking the flue gas and the ambient air collected by the gas collecting hood into the mixing pipeline.
According to the pollution emission monitoring system provided by the invention, further, the first fan is in communication connection with the controller, and the controller is used for sending a rotating speed control signal to the first fan according to the smoke emission flow rate so as to control the rotating speed of the first fan;
the smoke discharge flow rate reflects the flow rate of smoke when passing through the orifice of the smoke discharge pipe, and the smoke discharge flow rate is acquired by a flow rate sensor arranged at the orifice of the smoke discharge pipe.
According to the pollution emission monitoring system provided by the invention, further, a mixing cavity is arranged in the mixing pipeline, and the cross-sectional area of the mixing cavity in the axial direction perpendicular to the mixing pipeline is larger than the cross-sectional area of the mixing pipeline in other positions perpendicular to the axial direction of the mixing pipeline.
According to the pollution emission monitoring system provided by the invention, further, a mixer is arranged in the mixing cavity and is used for generating power so that the ambient air collected by the gas collecting hood and the flue gas flow and are mixed in the mixing cavity.
According to the present invention, there is provided a pollution emission monitoring system, further comprising:
the monitoring device is connected with the sampling port and is used for monitoring pollutants based on the gas sampled by the sampling port to obtain monitoring data, and a communication module is arranged in the monitoring device and is used for sending the monitoring data to a data management platform on line;
the data management platform comprises a data analysis module and a data alarm module;
the data analysis module is used for analyzing the monitoring data sent by the monitoring device by adopting a preset analysis scheme and generating a monitoring result analysis report;
and the data alarm module is used for generating alarm information based on the monitoring result analysis report.
According to the pollution emission monitoring system provided by the invention, further, the monitoring device is connected with the sampling port through the sampling pipe, the sampling port is connected with the sampling pipe through the telescopic piece, and the telescopic piece can be telescopic to adjust the aperture of the joint of the telescopic piece and the sampling pipe.
According to the pollution emission monitoring system provided by the invention, the data analysis module further comprises a filter, and the filter is used for filtering the monitoring data before analyzing the monitoring data sent by the monitoring device so as to filter noise data in the monitoring data.
According to the pollution emission monitoring system provided by the invention, at least one smoke alarm is arranged outside the monitoring pipeline and used for sending an alarm signal when smoke leakage exists at the sampling port.
According to the pollution emission monitoring system provided by the invention, further, one end of the monitoring pipeline far away from the mixing pipeline is provided with an exhaust funnel, and a second fan is arranged at the exhaust funnel and used for exhausting the gas in the monitoring pipeline to the exhaust funnel;
and a flue gas purifier is arranged between the sampling port closest to the exhaust barrel and is used for purifying the gas in the monitoring pipeline.
According to the pollution emission monitoring system provided by the invention, the gas collecting hood is used for collecting the ambient air and the discharged flue gas, the mixing pipeline is used for mixing the ambient air and the flue gas, the flue gas and the ambient air are mixed in the mixing pipeline and then enter the monitoring pipeline provided with the sampling port for sampling, the flue gas and the ambient air are mixed in the pipeline before being sampled to form mixed gas, pollutants in the flue gas are diluted into the ambient air so that the distribution of the pollutants in the mixed gas is more uniform, the mixed gas is sampled, the pollutant concentration fluctuation in the gas obtained by sampling at different moments is smaller than the pollutant concentration fluctuation in the gas obtained by sampling at different moments when the gas is directly sampled from the flue gas, and for particulate matters and other gaseous pollutants, the sampling including the particulate matters is firstly carried out through the first sampling port, and then the gas is sampled through the second sampling port after passing through the particulate matter filter, so that the sampling of the gaseous pollutants is not influenced by the particulate matters, and the monitoring result which can more accurately reflect the content of various pollutants in the flue gas can be generated.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a pollution emission monitoring system according to the present invention.
Fig. 2 is a schematic diagram of a data management platform in a pollution emission monitoring system provided by the present invention.
Reference numerals:
1: a stove; 11: a flue gas discharge pipe; 2: a gas collecting hood; 21: a flow rate sensor; 3: a mixing pipe; 31: a first fan; 32: a mixing chamber; 33: a mixer; 4: monitoring the pipeline; 41: a particulate filter; 42: a sampling port; 421: a first sampling port; 422: a second sampling port; 43: a flow meter; 44: a thermometer; 45: a pressure gauge; 46: an exhaust pipe; 47: a second fan; 48: a flue gas purifier; 51: a first smoke alarm; 52: a second smoke alarm; 61: a data analysis module; 62: a data alarm module; 63: a data receiving module; 64: and a data storage module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The pollutant monitoring in the flue gas is to measure the emission factors of various pollutants. The inventor finds that the flue gas rate is unstable when the civil stove discharges the flue gas, in the existing emission monitoring method, the discharged flue gas is directly sampled to obtain the concentration of pollutants in the flue gas, but the concentration of the pollutants in the flue gas fluctuates greatly, and in different time periods, the concentration of the pollutants in the flue gas passing through the sampling port is different, so that the monitoring result of the pollutants in the flue gas has great error. In view of the above problems, the present invention provides a pollution emission monitoring system, as shown in fig. 1, which includes a gas collecting hood 2, a mixing pipe 3, and a monitoring pipe 4, wherein one end of the mixing pipe 3 is connected to the gas collecting hood 2, and the other end is connected to the monitoring pipe 4, the mixing pipe 3 and the gas collecting hood 2 may be integrally formed, or may be connected by welding, a connecting piece, or the like, and the mixing pipe 3 and the monitoring pipe 4 may be integrally formed, or may be connected by welding, a connecting piece, or the like.
When the pollution emission monitoring system provided by the invention is practically applied, the gas collecting hood 2 is arranged at the stove 1 and is used for collecting ambient air and smoke emitted by the smoke emission pipe 11, the smoke emission pipe 11 is connected with the stove 1, and the smoke generated by fuel combustion in the stove 1 is discharged after passing through the smoke emission pipe 11 and is collected by the gas collecting hood 2. The opening of the gas collecting hood 2 is larger than the opening of the flue gas discharge pipe 11, and the opening of the flue gas discharge pipe 11 can be positioned in the opening of the gas collecting hood 2, so that the flue gas can be prevented from leaking. The mixing pipeline 3 is used for mixing ambient air and flue gas collected through the gas collecting hood 2, a sampling port 42 is arranged in the monitoring pipeline 4, the sampling port 42 comprises a first sampling port 421 and a second sampling port 422, the first sampling port 421 and the second sampling port 422 are used for sampling gas in the monitoring pipeline 4, a particulate filter 41 is arranged between the first sampling port 421 and the second sampling port 422, and the particulate filter 41 is used for filtering particulate matters contained in the gas in the monitoring pipeline. That is, the ambient air and the flue gas are mixed in the mixing pipe 3 before entering the monitoring pipe 4, and the gas sampled through the first sampling port 421 contains particulate matter, and then the particulate matter in the gas is filtered and then sampled through the second sampling port 422.
In the pollution emission monitoring system provided by the invention, the flue gas and the ambient air are collected together, the flue gas is mixed with the ambient gas through the mixing pipeline 3 before being sampled and monitored, pollutants in the flue gas are diluted into the mixed gas of the ambient gas and the flue gas, so that the pollutants in the mixed gas are uniformly distributed, the pollutant concentration fluctuation in the gas obtained by sampling at different moments is smaller than the pollutant concentration fluctuation in the gas obtained by sampling when the gas is directly sampled from the flue gas at different moments, and the particulate filter 41 is arranged, so that the sampling of the gaseous pollutants is not influenced by the particulate pollutants, the monitoring result generated based on the sampling result can reflect the content of various pollutants in the flue gas more accurately, and the measurement and calculation of the combustion pollutant emission factor of the civil stove are effectively supported.
Further, in order to enable the flue gas to be sufficiently collected and prevent leakage, as shown in fig. 1, a first fan 31 is disposed at one end of the mixing pipe 3 near the gas collecting hood 2, and the first fan 31 is used for sucking the flue gas and ambient air collected by the gas collecting hood 2 into the mixing pipe 3. Since the first fan 31 provides suction power, the gas collected by the gas collecting hood 2 will not flow back to leak.
In one possible implementation manner, in order to enable the flue gas to be diluted by enough ambient air, so that pollutants in the flue gas are uniformly distributed after being diffused, meanwhile, the ratio of the ambient air to the flue gas is not too large, so that the concentration of the pollutants is too low, and the monitoring result is inaccurate. Specifically, the flow rate of the flue gas discharge reflects the flow rate of the flue gas when passing through the nozzle of the flue gas discharge tube 11, and the flow rate of the flue gas discharge can be acquired by a flow rate sensor 21 provided at the nozzle of the flue gas discharge tube 11.
The rotation speed corresponding to the rotation speed control signal is positively correlated with the smoke discharge flow rate, that is, in the rotation speed adjustable range of the first fan 31, the larger the smoke discharge flow rate is, the higher the rotation speed corresponding to the rotation speed control signal is, the first fan 31 can operate at, so that more ambient air can be inhaled, the smoke is ensured to be mixed with enough ambient air, and the distribution of pollutants is more uniform. The smaller the fume emission flow speed is, the lower the rotation speed corresponding to the rotation speed control signal is, the first fan 31 can operate at a lower rotation speed, so that less ambient air can be inhaled, the ratio of fume to ambient air is prevented from being too low, the ratio of pollutants to mixed gas is prevented from being too low, and the monitoring result is inaccurate. In one possible implementation manner, the relationship between the rotational speed control signal and the flue gas discharge flow rate may satisfy that the ratio of flue gas to ambient air is 1:1, that is, the controller sends the rotational speed control signal to the first fan 31 based on the flue gas discharge flow rate to control the rotational speed of the first fan 31 so that the ratio of flue gas to ambient air entering the mixing duct 3 is 1: and 1, pollutants in the flue gas can be sufficiently diluted into mixed air, the distribution is more uniform, the excessive dilution of pollutants in the flue gas can be avoided, and the accuracy of a monitoring result is reduced. Of course, the person skilled in the art will understand that the ratio of flue gas to ambient air entering the mixing duct 3 may be determined by a number of tests to other values, which the invention is not limited in particular.
A mixing chamber 32 is arranged in the mixing pipe 3, and the cross-sectional area of the mixing chamber 32 perpendicular to the axial direction of the mixing pipe 3 is larger than the cross-sectional area of the mixing pipe 3 elsewhere perpendicular to the axial direction of the mixing pipe 3. In this way, when the flue gas and the ambient air are sucked into the mixing duct 3 by the first fan 31, the flue gas enters the mixing duct 3 and then enters the mixing chamber 32 with a larger cross-sectional area, and the gas can be diffused in the mixing chamber 32 to achieve more uniform mixing.
In one possible implementation, a mixer 33 may be further disposed in the mixing chamber 32, the mixer 33 is configured to generate power so that the gas entering the mixing chamber 32 flows and mixes in the mixing chamber 32, a fan may be disposed in the mixer 33, and the fan rotates to generate power for flowing the gas, or a stirring device connected to an engine may be disposed in the mixer 33, and the stirring device moves to generate power for flowing the gas. The mixer 33 is added in the mixing cavity 32, so that the distribution uniformity of pollutants in the mixed gas formed by mixing the flue gas and the ambient air can be improved, and the accuracy of the monitoring result can be further improved.
As shown in fig. 1, the flue gas and the ambient air are mixed in the mixing pipe 3 and then enter the monitoring pipe 4, a sampling port 42 is provided in the monitoring pipe 4, and is used for sampling the gas in the monitoring pipe 4 to obtain a pollutant monitoring result, the sampling port 42 includes a first sampling port 421 and a second sampling port 422, the mixed gas sampled by the first sampling port 421 is used for obtaining a particle monitoring result, the mixed gas sampled by the second sampling port 422 is used for obtaining a gas pollutant monitoring result, and the second sampling port 422 may be provided with a plurality of monitoring results that may be used for obtaining different types of gas pollutants. In the pollution emission monitoring system provided by the invention, the particulate filter 41 is arranged between the first sampling port 421 and the second sampling port 422, so that the mixed gas sampled through the second sampling port 422 is the gas with filtered particulate matters, and the gas pollution monitoring result obtained based on the mixed gas sampled through the second sampling port 422 is not influenced by the particulate matters, and is more accurate.
The monitoring pipeline 4 is further provided with a flowmeter 43, a thermometer 44 and a pressure gauge 45, the flowmeter 43 is used for acquiring the gas flow in the monitoring pipeline 4, the thermometer 44 is used for acquiring the temperature of the gas in the monitoring pipeline 4, the pressure gauge 45 is used for acquiring the pressure of the gas in the monitoring pipeline 4, and the acquired gas flow, temperature and pressure in the monitoring pipeline are used for calculating pollutant monitoring results.
The end of the monitoring pipeline 4 far away from the mixing pipeline 3 is provided with an exhaust funnel 46, and the exhaust funnel 46 is provided with a second fan 47 for exhausting the gas in the monitoring pipeline 4 to the exhaust funnel 46 and further exhausting the gas through the exhaust funnel 46. The gas in the monitoring pipeline 4 is diluted flue gas, so that pollution is reduced, but air pollution is still caused by direct discharge. In the pollution emission monitoring system provided by the invention, the flue gas purifier 48 is arranged between the sampling port 42 closest to the exhaust funnel 46 and the exhaust funnel 46, and the flue gas purifier 48 is used for purifying the gas in the monitoring pipeline 4, and the purified gas is discharged through the exhaust funnel 46, so that air pollution is avoided.
Further, at least one first smoke alarm 51 is arranged outside the monitoring pipeline, the first smoke alarm 51 is used for sending an alarm signal when smoke leakage exists at the sampling port, further, the second smoke alarm 52 can be further arranged outside the monitoring pipeline, and the second smoke alarm 52 is used for sending an alarm signal when smoke leakage exists at the joint of the gas collecting hood 2 and the mixing pipeline 3. Further, the alarm signal can be a terminal which is sent to maintenance personnel, and the alarm signal comprises the position information of the pollution emission monitoring system, so that the maintenance personnel can timely perform on-site maintenance when the smoke leaks.
The pollution emission monitoring system provided by the invention further comprises a monitoring device, and the sample obtained by sampling the mixed gas in the monitoring pipeline 4 is transmitted to the monitoring device through a sampling pipe to calculate and analyze the detection result. Specifically, the monitoring device is connected with the sampling port 42 through a sampling pipe, the sampling port 42 is connected with the sampling pipe through a telescopic piece, and the telescopic piece is telescopic to adjust the aperture of the joint with the sampling pipe. For example, the expansion piece may be a rubber ring embedded at the outlet of the sampling port 42, the rubber ring may expand and contract to change the inner diameter of the rubber ring due to the characteristics of rubber, sampling pipes of different types and sizes may be inserted in the deformation range of the rubber ring, and different sampling pipes may be compressed by the rebound rubber ring to realize sealing.
The monitoring device may be a gas composition analyzer. In order to realize continuous online real-time monitoring of pollutants, a communication module is arranged in the monitoring device and is used for sending the monitoring data to a data management platform online. As shown in fig. 2, the data management platform includes a data analysis module 61 and a data alarm module 62.
The data analysis module 61 is configured to invoke a preset analysis scheme to analyze the monitored data sent by the monitoring device. Specifically, the data management platform includes a data receiving module 62, the data receiving module 62 receives the monitoring data from the monitoring device and transmits the monitoring data to the data analyzing module 61, the data analyzing module 61 generates a monitoring result analysis report according to the monitoring data, for example, the monitoring data sent in real time by the monitoring device is compared with historical monitoring data to obtain a variation analysis result of emission factors of various pollutants, and the analysis result is filled into a report template to generate the monitoring result analysis report.
Further, the data analysis module 61 includes a filter for filtering the monitoring data received from the monitoring device, and the data analysis module 61 analyzes based on the filtered monitoring data. The filter is used for filtering noise in the monitoring data received from the monitoring device, so that noise data caused by background data and interference in the data acquisition and transmission process can be prevented, and the accuracy of the analysis result of the monitoring data is improved.
The data alarm module 62 is configured to generate alarm information based on the monitoring result analysis report, for example, when the monitoring result analysis report shows that a certain pollutant emission factor exceeds a standard, the data alarm module 62 may generate alarm information that the pollutant emission factor exceeds a standard, send the alarm information to a designated terminal to perform pollution prompting, and for example, when the monitoring result analysis report shows that the pollutant emission factor fluctuates greatly, the data alarm module 62 may generate alarm information that data is abnormal, send the alarm information to the designated terminal to perform prompting of monitoring data abnormality, and a user of the designated terminal may debug the pollution emission monitoring system and the data management platform according to the received prompting to ensure monitoring data quality.
The information generated in the data analysis module 61 and the data alarm module 62 can be transmitted to the data storage module 64 for storage, and can be read from the data storage module 64 at any time when needed later, so as to prevent data loss.
Before the pollution emission monitoring system provided by the invention is put into practical use, practical use simulation can be performed to verify the monitoring effect, and each component of the monitoring system is debugged. In simulation, in order to prevent the ignition object from interfering with the monitoring result, liquefied petroleum gas is used as the ignition object, ignition is carried out for 10-15min, after burning for 60min by intense fire, banking combustion is carried out, and sampling is carried out from the sampling port 42 based on the requirements of the national standard of the method for measuring particulate matters in exhaust gas of fixed pollution sources and sampling gaseous pollutants (GB/T16157-1996), so as to obtain the monitoring result.
The system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A pollution emission monitoring system, comprising:
the gas collecting hood is used for collecting ambient air and flue gas discharged from the flue gas discharge pipe;
the mixing pipeline is connected with the gas collecting hood at one end and is used for mixing the ambient air and the flue gas collected by the gas collecting hood;
the utility model provides a monitoring pipeline, the one end of monitoring pipeline with the mixing pipeline is kept away from the one end of gas collecting channel is connected, be provided with the sampling mouth in the monitoring pipeline, the sampling mouth includes first sampling mouth and second sampling mouth, first sampling mouth with the second sampling mouth is used for right gaseous sampling in the monitoring pipeline, first sampling mouth with be provided with particulate filter between the second sampling mouth, particulate filter is used for filtering particulate matter that contains in the gaseous monitoring pipeline.
2. The pollutant emission monitoring system of claim 1, wherein a first fan is disposed in the mixing duct at an end of the mixing duct adjacent to the gas collection hood, the first fan being configured to draw flue gas and ambient air collected by the gas collection hood into the mixing duct.
3. The emissions monitoring system of claim 2, wherein the first fan is communicatively coupled to a controller, the controller configured to send a rotational speed control signal to the first fan to control a rotational speed of the first fan based on a flue gas emission flow rate;
the smoke discharge flow rate reflects the flow rate of smoke when passing through the orifice of the smoke discharge pipe, and the smoke discharge flow rate is acquired by a flow rate sensor arranged at the orifice of the smoke discharge pipe.
4. The emissions monitoring system of claim 1, wherein a mixing chamber is disposed within the mixing conduit, the mixing chamber having a cross-sectional area perpendicular to an axial direction of the mixing conduit that is greater than a cross-sectional area of the mixing conduit elsewhere perpendicular to the axial direction of the mixing conduit.
5. The emissions monitoring system of claim 4, wherein a mixer is disposed within the mixing chamber, the mixer configured to generate power to cause ambient air collected by the gas collection hood to be mixed with the flue gas flowing within the mixing chamber.
6. The emissions monitoring system of claim 1, further comprising:
the monitoring device is connected with the sampling port and is used for monitoring pollutants based on the gas sampled by the sampling port to obtain monitoring data, and a communication module is arranged in the monitoring device and is used for sending the monitoring data to a data management platform on line;
the data management platform comprises a data analysis module and a data alarm module;
the data analysis module is used for analyzing the monitoring data sent by the monitoring device by adopting a preset analysis scheme and generating a monitoring result analysis report;
and the data alarm module is used for generating alarm information based on the monitoring result analysis report.
7. The pollutant emission monitoring system of claim 6, wherein the monitoring device is coupled to the sampling port via a sampling tube, the sampling port is coupled to the sampling tube via a telescoping member that is telescoping to adjust the aperture of the junction with the sampling tube.
8. The emissions monitoring system of claim 6, wherein the data analysis module comprises a filter for filtering the monitoring data to remove noise data from the monitoring data prior to analysis of the monitoring data transmitted by the monitoring device.
9. The pollutant emission monitoring system of claim 1, wherein at least one smoke alarm is provided on the exterior of the monitoring conduit for emitting an alarm signal when there is a smoke leak at the sampling port.
10. The pollutant emission monitoring system of claim 1, wherein an exhaust stack is disposed at an end of the monitoring conduit remote from the mixing conduit, and a second fan is disposed at the exhaust stack for exhausting the gas in the monitoring conduit to the exhaust stack;
and a flue gas purifier is arranged between the sampling port closest to the exhaust barrel and is used for purifying the gas in the monitoring pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310183865.5A CN116381135A (en) | 2023-03-01 | 2023-03-01 | Pollution emission monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN116992244A (en) * | 2023-09-26 | 2023-11-03 | 山东益来环保科技有限公司 | Intelligent monitoring system of cems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116992244A (en) * | 2023-09-26 | 2023-11-03 | 山东益来环保科技有限公司 | Intelligent monitoring system of cems |
| CN116992244B (en) * | 2023-09-26 | 2023-12-22 | 山东益来环保科技有限公司 | Intelligent monitoring system of cems |
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