CN218524680U - Continuous online flue gas monitoring system - Google Patents
Continuous online flue gas monitoring system Download PDFInfo
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- CN218524680U CN218524680U CN202222180837.1U CN202222180837U CN218524680U CN 218524680 U CN218524680 U CN 218524680U CN 202222180837 U CN202222180837 U CN 202222180837U CN 218524680 U CN218524680 U CN 218524680U
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Abstract
The utility model discloses a continuous on-line monitoring system of flue gas relates to flue gas monitoring technology field. The utility model discloses a: the gaseous pollutant monitoring subsystem is used for collecting gaseous pollutants and inputting the gaseous pollutants into the gaseous pollutant analyzer, and the gaseous pollutant analyzer sends an analysis result to the data collecting and processing subsystem; the particle monitoring subsystem and the smoke parameter monitoring subsystem transmit the acquired data to the data acquisition and processing subsystem through the integrator; the data acquisition and processing subsystem comprises a data acquisition and processing module, a ModemmGPRS module, a data display module, a data printing module and a data storage module. The utility model discloses a various gases that organize emission flue of online automatic analysis monitoring in succession to data transmission after will handling is to environmental protection administrative department and fixed pollution source monitored control system, has improved flue gas control dynamics in the pipeline.
Description
Technical Field
The utility model belongs to the technical field of the flue gas monitoring, especially, relate to a continuous on-line monitoring system of flue gas, this system is applicable to the various gases that organize emission flue of continuous online automatic analysis monitoring, can extensively be used for each trade such as petrochemical industry, refining, chemical industry, pharmacy, electron semiconductor, packing printing, surface coating, circuit board.
Background
According to the requirements of an environmental supervision department, an atmospheric pollution source automatic monitoring facility is required to be installed in a coal-fired boiler with the volume of more than 35 tons/hour and a gas-fired boiler with the volume of more than 20 tons/hour, the coal-fired boiler and the gas-fired boiler are networked with an environmental protection department, and a Distributed Control System (DCS) is installed to monitor the pollutant emission situation in real time; a nitrogen oxide tail gas analyzer is required to be installed in a gas boiler with the steam volume of less than 20 tons/hour. For some small coal and gas burning equipment, only the parameters of dust concentration, flow and pressure of the discharged matter need to be detected. For cost reasons, it is somewhat impractical to install both of these large environmental monitoring devices, and there is no low cost stack emissions monitoring device on the market for a while.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous on-line monitoring system of flue gas through the various gases that organize emission flue of continuous online automatic analysis monitoring, reaches energy saving and reduce environmental pollution's dual effect according to the analysis result, has solved the untimely problem of flue gas monitoring in the current pipeline inaccurate, can not real time monitoring and data feedback.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a continuous on-line flue gas monitoring system, which comprises a gaseous pollutant monitoring subsystem, a particulate matter monitoring subsystem, a flue gas parameter monitoring subsystem and a data acquisition and processing subsystem;
the gaseous pollutant monitoring subsystem is used for collecting gaseous pollutants and inputting the gaseous pollutants into the gaseous pollutant analyzer, and the gaseous pollutant analyzer sends an analysis result to the data collecting and processing subsystem;
the particle monitoring subsystem and the smoke parameter monitoring subsystem transmit the acquired data to the data acquisition and processing subsystem through the integrator;
the data acquisition and processing subsystem comprises a data acquisition and processing module, and a ModemmGPRS module, a data display module, a data printing module and a data storage module which are respectively connected with the data acquisition and processing module; the ModemmGPRS module sends the processed data to an environmental protection administrative department through a TCP/IP protocol; and the data processed by the data acquisition and processing module is sent to a fixed pollution source monitoring system.
Further, the gaseous pollutant monitoring subsystem comprises a gaseous pollutant sampling system, a pretreatment system and a gaseous pollutant analyzer; the gaseous pollutant sampling and preprocessing system is sequentially connected with the gaseous pollutant analyzer; the gaseous pollutant sampling is used for collecting gaseous pollutants discharged by an atmosphere fixed pollution source; the pretreatment system is used for converting the gaseous pollutant data into a format which can be processed by a gaseous pollutant analyzer; the gaseous pollutant analyzer is used for analyzing the data of the atmosphere fixed pollution source.
Further, the particle monitoring subsystem is a particle measuring instrument; the particulate matter measuring instrument is used for analyzing the particulate matter of the atmospheric fixed pollution source.
Further, the flue gas parameter monitoring subsystem comprises a flow velocity transmitter, a temperature transmitter, a pressure transmitter and a humidity transmitter.
The utility model discloses following beneficial effect has:
(1) The utility model discloses a various gases that organize emission flue of online automatic analysis monitoring in succession reach the energy saving and reduce environmental pollution's dual effect according to data acquisition and processing system's analytic result to data transmission after will handling has improved flue gas control dynamics in the pipeline to environmental protection administrative department and fixed pollution source monitored control system.
(2) The utility model realizes the purpose of detecting the concentration of particulate matters and the concentration of gaseous pollutants discharged by the atmosphere fixed pollution source and the total discharge amount, and simultaneously transmits the monitored data and information to the environmental protection related departments in a wired and wireless way, and the monitored data and information are used as one of the bases for environmental protection law enforcement; meanwhile, according to the requirements of actual enterprise conditions, part of data can be transmitted to an enterprise DCS system for controlling equipment for desulfurization, denitration, dust removal and the like.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a continuous online flue gas monitoring system of the present invention;
FIG. 2 is a schematic front view of a gaseous pollutant analyzer;
FIG. 3 is a schematic view of the back side of the gaseous contaminant analyzer;
fig. 4 is a schematic view of the gas inlet and outlet on the back of the gaseous pollutant analyzer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model relates to a continuous on-line flue gas monitoring system, which comprises a gaseous pollutant monitoring subsystem, a particulate matter monitoring subsystem, a flue gas parameter monitoring subsystem and a data acquisition and processing subsystem;
the gaseous pollutant monitoring subsystem is used for collecting gaseous pollutants and inputting the gaseous pollutants into the gaseous pollutant analyzer, and the gaseous pollutant analyzer sends an analysis result to the data collecting and processing subsystem; the gaseous pollutant monitoring subsystem can detect SO in smoke 2 And NO X ；
The particle monitoring subsystem and the smoke parameter monitoring subsystem transmit the acquired data to the data acquisition and processing subsystem through the integrator;
the data acquisition and processing subsystem comprises a data acquisition and processing module, and a ModemmGPRS module, a data display module, a data printing module and a data storage module which are respectively connected with the data acquisition and processing module; the ModemmGPRS module sends the processed data to an environmental protection administrative department through a TCP/IP protocol; and the data processed by the data acquisition and processing module is sent to a fixed pollution source monitoring system.
The gaseous pollutant monitoring subsystem comprises a gaseous pollutant sampling and preprocessing system and a gaseous pollutant analyzer; the gaseous pollutant sampling and preprocessing system is sequentially connected with the gaseous pollutant analyzer; sampling gaseous pollutants, wherein the sampling gaseous pollutants are used for collecting gaseous pollutants discharged by an atmosphere fixed pollution source; the pretreatment system is used for converting the gaseous pollutant data into a format capable of being processed by the gaseous pollutant analyzer; and the gaseous pollutant analyzer is used for analyzing the data of the atmosphere fixed pollution source.
The particle monitoring subsystem is a particle measuring instrument; and the particulate matter measuring instrument is used for analyzing the particulate matters of the atmosphere fixed pollution source.
The smoke parameter monitoring subsystem comprises a flow velocity transmitter, a temperature transmitter, a pressure transmitter and a humidity transmitter; the transmitter is used for acquiring parameters of flow rate, temperature, pressure and humidity and transmitting the parameters to the data acquisition and processing system in a specific signal form.
The application document provides a continuous on-line monitoring system of flue gas, and the application environment requires as follows:
1) Atmospheric pressure: (70 to 106) kPa;
2) Ambient temperature: -20 ℃ to 50 ℃ (outdoor part); 15 ℃ to 35 ℃ (indoor part);
3) Relative humidity: less than or equal to 85 percent (no condensation);
4) Power supply requirements: alternating current is 220V +/-22V, 50Hz +/-1 Hz;
5) The environment is free from strong electromagnetic field interference, strong vibration, flammability, corrosivity and reduction body, good ventilation and configuration of a special ground wire.
The continuous on-line monitoring system of flue gas that this application file provided can be applied to multiple occasion, like:
CEMS (analysis of S0) for continuous monitoring of flue gas emission of power plant 2 、NO、NO 2 、0 2 )；
Monitoring of desulfurization process (analysis of SO) 2 、0 2 )；
Denitration process monitoring (analysis of NO, NO) 2 、NH 3 、O 2 )；
Continuous monitoring (analysis of SO) of waste incineration smoke emission 2 、NO、NO 2 、0 2 )；
PVC process in chlor-alkali plant and micro C1 in titanium dioxide production process 2 Analysis (analysis C1 2 )；
Sulphur recovery process gas analysis (analysis of SO) 2 、H 2 S)；
Process gas analysis (analyzing trace amount H) for natural gas 2 S)；
Coal chemical industry methyl iodide analysis (analysis CH) 3 I)；
On-line monitoring of atmosphere (analysis S0) 2 、NO 2 、0 3 ) And so on.
Example one
As shown in fig. 2 to fig. 4, the front and back of the gaseous pollutant analyzer are schematically illustrated, the process of gas piping construction is as follows:
step 1: when in piping, the gas inlet and the gas outlet on the back of the analyzer are required to be connected;
and 2, step: the instrument and the sampling system are connected by corrosion-resistant pipes such as polytetrafluoroethylene, stainless steel, polyethylene and the like. Even when corrosion is not a concern, a rubber tube or a soft vinyl tube is not required. Otherwise, the indication value becomes inaccurate due to gas adsorption caused by piping material factors;
and 3, step 3: the pipe is connected with the double cutting ferrules with the diameter of 6 mm. In order to improve the response speed, the piping is shortened as much as possible;
and 4, step 4: dust invades into the inside of the meter and may cause poor action, so a clean pipe and joint are required to be used;
and 5: sample gas inlet: the piping is connected so that the gas to be measured after the pretreatment such as dehumidification treatment and the standard gas for zero point and span correction are introduced. The flow range of the introduced gas is 1.0-2.0L/min, please keep the flow stable;
step 6: and discharging the measured gas after the measurement is finished.
Example two
The gaseous pollutant analyzer comprises a light source, a gas chamber, a spectrometer, an HMI module, an interface board, and an oxygen sensor module (or ZrO) 2 Module), temperature sensor and the like, and extension module (C0, C0) 2 Detection) composition.
Wherein, the light source: the gas discharge light source used by the gas pollutant analyzer is used for the carrier of reference light or measured substance in the measuring process. The key parameters are the service life of a light source and the wavelength range of usable ultraviolet light, and the analyzer adopts a high-performance and long-service-life ultraviolet pulse xenon lamp.
A gas chamber: also called a flow cell, the gas to be measured flows through with a constant flow rate, and absorbs ultraviolet light so as to acquire an absorption spectrum.
A spectrometer: and ultraviolet light absorbed by the gas from the gas chamber is received, so that light splitting and spectrum collection are realized.
An oxygen sensor: the oxygen concentration was measured electrochemically.
A temperature sensor: and collecting the temperature and pressure of the sample gas, and converting the concentration of the measurement component into the concentration in a standard state.
HMI module: realizing chemometrics algorithm for calculating component concentration through absorption spectrum and man-machine interaction.
An interface board: and switching value and analog input and output are provided, and communication interfaces such as RS232 and RS485 are provided.
Air pump and solenoid valve: the method is used for gas circuit switching during zero setting and normal measurement.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended to aid in the description of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides a continuous on-line monitoring system of flue gas, includes gaseous pollutant monitoring subsystem, particulate matter monitoring subsystem, flue gas parameter monitoring subsystem and data acquisition and processing subsystem, its characterized in that:
the gaseous pollutant monitoring subsystem is used for collecting gaseous pollutants and inputting the gaseous pollutants into the gaseous pollutant analyzer, and the gaseous pollutant analyzer sends an analysis result to the data collecting and processing subsystem;
the particle monitoring subsystem and the smoke parameter monitoring subsystem transmit the acquired data to the data acquisition and processing subsystem through the integrator;
the data acquisition and processing subsystem comprises a data acquisition and processing module, and a Modem GPRS module, a data display module, a data printing module and a data storage module which are respectively connected with the data acquisition and processing module; the Modem GPRS module sends the processed data to an environmental protection administrative department through a TCP/IP protocol; and the data processed by the data acquisition and processing module is sent to a fixed pollution source monitoring system.
2. The continuous online flue gas monitoring system according to claim 1, wherein the gaseous pollutant monitoring subsystem comprises a gaseous pollutant sampling system, a pretreatment system and a gaseous pollutant analyzer; the gaseous pollutant sampling and pretreatment system and the gaseous pollutant analyzer are sequentially connected; the gaseous pollutant sampling is used for collecting gaseous pollutants discharged by an atmosphere fixed pollution source; the pretreatment system is used for converting the gaseous pollutant data into a format which can be processed by a gaseous pollutant analyzer; the gaseous pollutant analyzer is used for analyzing the data of the atmosphere fixed pollution source.
3. The continuous online flue gas monitoring system of claim 1, wherein the particulate matter monitoring subsystem is a particulate matter measuring instrument; the particulate matter measuring instrument is used for analyzing the particulate matter of the atmosphere fixed pollution source.
4. The continuous online flue gas monitoring system of claim 1, wherein the flue gas parameter monitoring subsystem comprises a flow rate transmitter, a temperature transmitter, a pressure transmitter and a humidity transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180837.1U CN218524680U (en) | 2022-08-18 | 2022-08-18 | Continuous online flue gas monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180837.1U CN218524680U (en) | 2022-08-18 | 2022-08-18 | Continuous online flue gas monitoring system |
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| CN218524680U true CN218524680U (en) | 2023-02-24 |
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| CN202222180837.1U Active CN218524680U (en) | 2022-08-18 | 2022-08-18 | Continuous online flue gas monitoring system |
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