CN112684757A - Waste gas monitoring control system of thermal power plant - Google Patents
Waste gas monitoring control system of thermal power plant Download PDFInfo
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- CN112684757A CN112684757A CN202011570259.1A CN202011570259A CN112684757A CN 112684757 A CN112684757 A CN 112684757A CN 202011570259 A CN202011570259 A CN 202011570259A CN 112684757 A CN112684757 A CN 112684757A
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Abstract
The invention discloses a waste gas monitoring and controlling system of a thermal power plant, which belongs to the technical field of the thermal power plant, and comprises a waste gas inspection module, a waste gas monitoring module, a detection alarm module, a waste gas purification module and a central control module, wherein the waste gas inspection module is used for inspecting waste gas inside the thermal power plant after the waste gas purification module carries out waste gas purification; the system controls the automatic control of monitoring and purifying waste gas through the PLC control unit, improves monitoring efficiency, improves the qualification rate of the waste gas, directly purifies the waste gas to an emission state, and improves the utilization rate of the waste gas.
Description
Technical Field
The invention belongs to the technical field of thermal power plants, and particularly relates to a waste gas monitoring and controlling system of a thermal power plant.
Background
Statistically, the global average ground air temperature has increased by 0.3 to 0.6 ℃ over the past hundred years. The 3 rd assessment report of the inter-government climate change committee (IPCC) indicated that the climate warming in the last fifty years was mainly due to the emission of large amounts of greenhouse gases into the air, of which CO2 accounted for 56%. From 1800 to date, the level of CO2 in the atmosphere has risen from 280ppm to 400ppm, with 60% of the increase occurring in the last fifty years.
As is known, a thermal power plant generally uses fossil fuel to generate electricity, and exhaust gas contains a large amount of harmful smoke, nitrogen oxides, SO2 and CO2, SO that direct emission is extremely harmful to the environment. In recent years, with the society's continuous emphasis on ecological environment, academic circles and technical circles keep high attention on how to solve the problems of environmentally-friendly emission of exhaust gas from thermal power plants and improvement of exhaust gas utilization rate. Therefore, on the basis of solving the waste gas, the waste gas generated by the power plant needs to be monitored, and how to effectively monitor and purify the waste gas of the thermal power plant becomes a problem concerned nowadays.
Disclosure of Invention
The invention aims to provide a waste gas monitoring and controlling system of a thermal power plant, which controls and improves the automatic control of monitoring and purifying waste gas, improves the monitoring efficiency, improves the qualification rate of the waste gas, directly purifies the waste gas to an emission state and improves the utilization rate of the waste gas by controlling a unit through a PLC.
In order to achieve the purpose, the invention provides the following technical scheme: a waste gas monitoring and controlling system of a thermal power plant comprises a waste gas inspection module, a waste gas monitoring module, a detection alarm module, a waste gas purification module and a central control module, the waste gas inspection module is used for inspecting waste gas inside the thermal power plant after the waste gas purification module purifies the waste gas, the waste gas monitoring module is used for monitoring the waste gas inside the thermal power plant, the detection alarm module is used for giving an alarm according to monitoring data of the waste gas monitoring module, the waste gas purification module is used for purifying the waste gas inside the thermal power plant, the central control module is connected with the waste gas inspection module, the waste gas monitoring module, the detection alarm module and the waste gas purification module, the exhaust gas monitoring module is used for receiving exhaust gas information of the exhaust gas inspection module and the exhaust gas monitoring module, positioning and detecting an alarm position of the alarm module at the same time, and finally controlling a command of the exhaust gas purification module.
Preferably, the exhaust gas inspection module detects SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercuride, temperature, flue gas flow, pressure, flue gas oxygen content and flue gas moisture content.
Preferably, the waste gas patrol inspection module and the waste gas monitoring module are all provided with an oxygen analyzer, a nitride analyzer and a sulfide analyzer, the oxygen analyzer, the nitride analyzer and the sulfide analyzer are connected with a sampling pump, the sampling pump is connected with a heating sample pipeline, and the heating sample pipeline is connected to the oxygen analyzer, the nitride analyzer and the sulfide analyzer.
Preferably, still be equipped with sampling structure in the waste gas patrols and examines the module, sampling structure includes the gas adsorption pipeline, and the vertical direction equidistance of gas adsorption pipeline sets up a plurality of gas outlets, the gas outlet with oxygen analysis appearance, nitride analysis appearance, sulphide analysis appearance are connected, are connected with the control valve on the gas outlet, and the control valve is connected to central control module, connects and arranges the pipeline in the thermal power plant inside with the gas adsorption, divides into a plurality of little units with the internal region of thermal power plant, and a gas adsorption pipeline is all placed to every little unit inside.
Preferably, the detection alarm module comprises a data import chip connected to the oxygen analyzer, the nitride analyzer and the sulfide analyzer, the data import chip is connected to the data analyzer, and the data analyzer is connected to the alarm buzzer.
Preferably, the waste gas purification module is including purifying the box, and inside a plurality of carbon adsorption film, the air purifier of placing of purification box, carbon adsorption film one side is equipped with the air compressor machine, and waste gas flows through and gets into air purifier behind the carbon adsorption film and derives, purifies the inside control chip that is equipped with of box, and control chip connects the power box, and the power box electricity is connected to air purifier and air compressor machine.
Preferably, the central control module is provided with a PLC control unit, the PLC control unit is connected with the oxygen analyzer, the nitride analyzer, the sulfide analyzer, the alarm buzzer, the control chip and the control valve in a message mode, the PLC control unit is set at a characteristic value, the PLC control unit receives data from the oxygen analyzer, the nitride analyzer and the sulfide analyzer, and if the data exceeds the characteristic value, the PLC control unit controls the alarm buzzer to give an alarm.
The invention has the beneficial effects that:
1. this exhaust gas monitoring control system of thermal power plant, it patrols and examines the module to set up waste gas, thermal power plant's air after the exhaust gas purification carries out detection once more, waste gas patrols and examines the module and is connected with detection alarm module, ensure that the inside air quality of thermal power plant is good, patrol and examine unqualifiedly simultaneously through the alarm, report to the police, and the inside different regions of thermal power plant all place the gas adsorption pipeline, fully improve the sample selective examination rate, improve the efficiency of monitoring, improve the qualification rate of waste gas, directly purify to the discharge state, improve the utilization ratio of waste gas.
2. This exhaust gas monitoring control system of thermal power plant patrols and examines the module through central control module to waste gas, the waste gas monitoring module, detect alarm module, the exhaust gas purification module carries out joint control monitoring, form core control system, improve the efficiency of monitoring and exhaust-gas treatment's action efficiency, simultaneously when gaseous taking a sample, through establishing the gas outlet of the co-altitude not of the vertical direction of gas adsorption pipeline, carry out the gas monitoring of the inside different height positions of thermal power plant, improve the monitoring accuracy degree greatly.
3. This exhaust gas monitoring control system of thermal power plant, central control module are equipped with PLC control unit, and PLC control unit information connection to oxygen analysis appearance, nitride analysis appearance, sulphide analysis appearance, alarm buzzer, control chip improve the automated control of monitoring purification waste gas, reduce the hand labor and pay out.
Drawings
Fig. 1 is a schematic structural diagram of an exhaust gas monitoring and controlling system of a thermal power plant according to the present invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1, an exhaust gas monitoring and control system of a thermal power plant according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
This exhaust gas monitoring control system of thermal power plant includes that waste gas patrols and examines module, exhaust gas monitoring module, detection alarm module, exhaust gas purification module, central control module, waste gas patrols and examines the module and is used for the inside waste gas of thermal power plant after the exhaust gas purification module carries out waste gas purification patrols and examines, and exhaust gas monitoring module is used for the inside exhaust gas monitoring of thermal power plant, and detection alarm module is used for the monitoring data according to exhaust gas monitoring module, carries out the alarm suggestion, and exhaust gas purification module is used for purifying the inside waste gas of thermal power plant, and central control module patrols and examines module, exhaust gas monitoring module, detection alarm module, exhaust gas purification module with waste gas and is connected for receiving the waste gas information that waste gas patrols and examines module and exhaust gas monitoring module, fixes a position the alarm position that detects alarm module.
Specifically, the exhaust gas inspection module detects SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercuride, temperature, flue gas flow, pressure, flue gas oxygen content and flue gas moisture content.
Specifically, the exhaust gas inspection module and the exhaust gas monitoring module are respectively provided with an oxygen analyzer, a nitride analyzer and a sulfide analyzer, the oxygen analyzer, the nitride analyzer and the sulfide analyzer are connected with a sampling pump, the sampling pump is connected with a heating sample pipeline, and the heating sample pipeline is connected with the oxygen analyzer, the nitride analyzer and the sulfide analyzer; still be equipped with sample structure in the waste gas patrols and examines the module, and sample structure includes the gas adsorption pipeline, and the vertical direction equidistance of gas adsorption pipeline sets up a plurality of gas outlets, the gas outlet with oxygen analysis appearance, nitride analysis appearance, sulphide analysis appearance are connected, are connected with the control valve on the gas outlet, and the control valve is connected to central control module, connects and arranges the gas adsorption pipeline in inside the thermal power plant, divides into a plurality of little units with the internal region of thermal power plant, and a gas adsorption pipeline is all placed to every little unit inside.
In the above-described embodiment, the oxygen analyzer was used with a model number Rosemount 755R, the nitride analyzer was used with a model number Rosemount 951C, and the sulfide analyzer was used with a model number Rosemount 890.
Specifically, detect alarm module including connecting the data import chip on oxygen analysis appearance, nitride analysis appearance, the sulphide analysis appearance, the data import chip is connected with data analysis, and data analysis is connected with alarm buzzer, and alarm buzzer sets up a plurality ofly in thermal power plant is inside, and alarm buzzer is sending out the police dispatch newspaper just, behind the received signal of telecommunication of central control PLC unit, fixes a position, carries out exhaust purification in the specified area.
Specifically, the exhaust purification module is including purifying the box, and inside a plurality of carbon adsorption film, the air purifier of placing of purification box, carbon adsorption film one side is equipped with the air compressor machine, and waste gas flows through and gets into air purifier behind the carbon adsorption film and derives, purifies the inside control chip that is equipped with of box, and control chip connects the power box, and the power box electricity is connected to air purifier and air compressor machine.
Specifically, central control module is equipped with PLC control unit, and PLC control unit information is connected to oxygen analyzer, nitride analyzer, sulphide analyzer, alarm buzzer, control chip, control valve, and PLC control unit establishes at a eigenvalue, and PLC control unit is receiving the data that comes from oxygen analyzer, nitride analyzer, sulphide analyzer and is, if when exceeding this eigenvalue, then control alarm buzzer and report to the police.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A waste gas monitoring and controlling system of a thermal power plant is characterized by comprising a waste gas inspection module, a waste gas monitoring module, a detection alarm module, a waste gas purification module and a central control module, the waste gas inspection module is used for inspecting waste gas inside the thermal power plant after the waste gas purification module purifies the waste gas, the waste gas monitoring module is used for monitoring the waste gas inside the thermal power plant, the detection alarm module is used for giving an alarm according to monitoring data of the waste gas monitoring module, the waste gas purification module is used for purifying the waste gas inside the thermal power plant, the central control module is connected with the waste gas inspection module, the waste gas monitoring module, the detection alarm module and the waste gas purification module, the exhaust gas monitoring module is used for receiving exhaust gas information of the exhaust gas inspection module and the exhaust gas monitoring module, positioning and detecting an alarm position of the alarm module at the same time, and finally controlling a command of the exhaust gas purification module.
2. The thermal power plant exhaust gas monitoring and control system according to claim 1, wherein the exhaust gas inspection module comprises a detection module for detecting SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercuride, and temperature, flue gas flow, pressure, flue gas oxygen content and flue gas moisture content.
3. The exhaust gas monitoring and control system of the thermal power plant according to claim 1, wherein the exhaust gas inspection module and the exhaust gas monitoring module are provided with an oxygen analyzer, a nitride analyzer and a sulfide analyzer, and the oxygen analyzer, the nitride analyzer and the sulfide analyzer are connected with a sampling pump, the sampling pump is connected with a heating sample pipeline, and the heating sample pipeline is connected with the oxygen analyzer, the nitride analyzer and the sulfide analyzer.
4. The system according to claim 1, wherein a sampling structure is further arranged in the waste gas inspection module, the sampling structure comprises a gas adsorption pipeline, a plurality of gas outlets are arranged in the gas adsorption pipeline in the vertical direction at equal intervals, the gas outlets are connected with the oxygen analyzer, the nitride analyzer and the sulfide analyzer, a control valve is connected to the gas outlets, the control valve is connected to the central control module, the gas adsorption pipeline is connected and arranged inside the thermal power plant, the internal area of the thermal power plant is divided into a plurality of small units, and a gas adsorption pipeline is arranged inside each small unit.
5. The thermal power plant exhaust gas monitoring and control system as claimed in claim 1, wherein the detection alarm module comprises a data input chip connected to the oxygen analyzer, the nitride analyzer and the sulfide analyzer, the data input chip is connected to the data analyzer, and the data analyzer is connected to the alarm buzzer.
6. The exhaust gas monitoring and control system of the thermal power plant as claimed in claim 1, wherein the exhaust gas purification module comprises a purification box body, a plurality of carbon adsorption films and an air purifier are placed inside the purification box body, an air compressor is arranged on one side of each carbon adsorption film, exhaust gas flows through the carbon adsorption films and then enters the air purifier to be led out, a control chip is arranged inside the purification box body, the control chip is connected with a power supply box, and the power supply box is electrically connected to the air purifier and the air compressor.
7. The exhaust gas monitoring and control system of the thermal power plant as claimed in claim 1, wherein the central control module is provided with a PLC control unit, information of the PLC control unit is connected to the oxygen analyzer, the nitride analyzer, the sulfide analyzer, the alarm buzzer, the control chip and the control valve, the PLC control unit is set at a characteristic value, and the PLC control unit receives data from the oxygen analyzer, the nitride analyzer and the sulfide analyzer, and controls the alarm buzzer to give an alarm if the data exceeds the characteristic value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011570259.1A CN112684757A (en) | 2020-12-26 | 2020-12-26 | Waste gas monitoring control system of thermal power plant |
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| CN202011570259.1A CN112684757A (en) | 2020-12-26 | 2020-12-26 | Waste gas monitoring control system of thermal power plant |
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| CN112684757A true CN112684757A (en) | 2021-04-20 |
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| CN202011570259.1A Pending CN112684757A (en) | 2020-12-26 | 2020-12-26 | Waste gas monitoring control system of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115509195A (en) * | 2022-10-24 | 2022-12-23 | 栾松 | Automatic energy-saving control system of electrical engineering suitable for thermal power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203259519U (en) * | 2013-05-09 | 2013-10-30 | 厦门奥林特环保科技有限公司 | Pollution source flue gas automatic monitoring system |
| CN104316656A (en) * | 2014-11-05 | 2015-01-28 | 江苏科技大学 | Waste gas purification real-time monitoring system and method |
| CN105004688A (en) * | 2015-07-17 | 2015-10-28 | 国网山西省电力公司大同供电公司 | Exhaust gas monitoring system of thermal power station |
| CN206730828U (en) * | 2017-05-02 | 2017-12-12 | 中国石油大学(北京) | Thermal power plant's waste gas cleaning system |
| CN111812271A (en) * | 2020-06-19 | 2020-10-23 | 山东新升实业发展有限责任公司 | Thermal power plant atmospheric pollutant monitoring system and method |
-
2020
- 2020-12-26 CN CN202011570259.1A patent/CN112684757A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203259519U (en) * | 2013-05-09 | 2013-10-30 | 厦门奥林特环保科技有限公司 | Pollution source flue gas automatic monitoring system |
| CN104316656A (en) * | 2014-11-05 | 2015-01-28 | 江苏科技大学 | Waste gas purification real-time monitoring system and method |
| CN105004688A (en) * | 2015-07-17 | 2015-10-28 | 国网山西省电力公司大同供电公司 | Exhaust gas monitoring system of thermal power station |
| CN206730828U (en) * | 2017-05-02 | 2017-12-12 | 中国石油大学(北京) | Thermal power plant's waste gas cleaning system |
| CN111812271A (en) * | 2020-06-19 | 2020-10-23 | 山东新升实业发展有限责任公司 | Thermal power plant atmospheric pollutant monitoring system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115509195A (en) * | 2022-10-24 | 2022-12-23 | 栾松 | Automatic energy-saving control system of electrical engineering suitable for thermal power plant |
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Application publication date: 20210420 |