Thermal power plant waste gas monitoring control system

Abstract

The invention relates to the technical field of thermal power plants, and discloses a thermal power plant waste gas monitoring control system, which comprises a monitoring center station and monitoring substations arranged at monitoring points, and is characterized in that the monitoring center station comprises a center control module and a first wireless communication module; the monitoring substation comprises a waste gas inspection module, a waste gas monitoring module, a detection alarm module, a waste gas treatment monitoring module, a second wireless communication module and a waste gas treatment monitoring data processing module, the central control module is connected with the first wireless communication module, and the second wireless communication module is wirelessly connected with the first wireless communication module. And the data transmission module is used for transmitting data of the monitoring substations to the monitoring center station. Data of each monitoring substation can be accurately obtained in real time, the monitoring error is small, important and accurate monitoring data are provided for pollution abatement work, the monitoring efficiency can be improved, the qualification rate of waste gas is increased, the waste gas is directly purified to the emission state, and the utilization rate of the waste gas is increased.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power plants, and in particular to a waste gas monitoring and control system for thermal power plants. Background Art

[0002] Industrial pollution refers to the damage done by industrial enterprises to the natural environment on which living things, including humans, depend for survival and reproduction during the production process. The pollution is mainly caused by the "three wastes" (waste water, waste gas, and waste residue) and various noises in production. It can be divided into wastewater pollution, waste gas pollution, waste residue pollution, and noise pollution. Industrial pollution is mainly concentrated in a few industries.

[0003] As we all know, thermal power plants generally use fossil fuels to generate electricity, and the exhaust gas contains a large amount of harmful smoke, nitrogen oxides, SO2, and CO2. Direct emissions are extremely harmful to the environment, so it is necessary to monitor the exhaust gas. In the workshop production process, the harm of exhaust gas is particularly serious. After untreated exhaust gas enters some plasma equipment, it is easy to affect or damage the equipment. In severe cases, it may cause fire or explosion accidents, posing a threat to the personal health of workshop operators. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a waste gas monitoring and control system for a thermal power plant, which solves the problem that the existing untreated waste gas entering some plasma equipment can easily affect or damage the equipment, and in severe cases may cause fire or explosion accidents, posing a threat to the personal health of workshop operators.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A waste gas monitoring and control system for a thermal power plant comprises a monitoring central station and a monitoring substation arranged at a monitoring point, wherein the monitoring pole central station comprises a central control module and a first wireless communication module, the monitoring substation comprises a waste gas inspection module, a waste gas monitoring module, a detection alarm module, a waste gas treatment monitoring module, a second wireless communication module and a waste gas treatment monitoring data processing module, the central control module is connected to the first wireless communication module, the second wireless communication module is wirelessly connected to the first wireless communication module and is used to transmit data of the monitoring substation to the monitoring central station, the waste gas inspection module, the waste gas monitoring module, the detection alarm module, the waste gas treatment monitoring module and the waste gas treatment monitoring data processing module are connected to each other, the waste gas treatment monitoring data processing module is wirelessly connected to the second wireless communication module, the waste gas treatment monitoring module is used to purify the waste gas inside the thermal power plant and monitor the waste gas during the treatment, and the waste gas treatment monitoring data processing module is used to process the real-time data monitored during the waste gas treatment and transmit the data to the second wireless communication module.

[0009] Furthermore, the exhaust gas monitoring module is used to monitor the exhaust gas inside the thermal power plant, and the detection alarm module is used to issue an alarm prompt based on the monitoring data of the exhaust gas monitoring module.

[0010] Based on the above scheme, the exhaust gas treatment monitoring module includes exhaust gas treatment equipment and an exhaust gas treatment monitoring controller.

[0011] As a further solution of the present invention, the exhaust gas treatment device is connected to the exhaust gas treatment monitoring controller by signal, and the exhaust gas treatment device also includes monitoring sensors arranged at the exhaust gas inlet and the exhaust gas outlet.

[0012] Furthermore, the waste gas treatment equipment includes a purification box, a plurality of carbon adsorption membranes and an air purifier are placed inside the purification box, and an air compressor is provided on one side of the carbon adsorption membrane.

[0013] On the basis of the above-mentioned scheme, the exhaust gas inspection module is used to inspect the exhaust gas after the exhaust gas purification treatment is completed.

[0014] As a further solution of the present invention, the exhaust gas inspection module is used to detect any multiple of SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercury and temperature, flue gas flow, pressure, flue gas oxygen content and flue gas moisture content in the treated exhaust gas.

[0015] Furthermore, the exhaust gas inspection module includes a gas sample collection device, and the gas sample collection device is used to collect samples of the treated exhaust gas.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention can accurately obtain the data of each monitoring substation in real time through the real-time monitoring of each monitoring substation by the monitoring center station. At the same time, the wireless communication module is used to transmit data through the wireless communication network. The data conversion format and transmission method are matched, and the monitoring error is small, which provides important and accurate monitoring data for pollution control work.

[0018] 2. The present invention sets up a waste gas inspection module to re-inspect the air of the thermal power plant after the waste gas is purified. The waste gas inspection module is connected to the detection alarm module to ensure that the air quality inside the thermal power plant is good. At the same time, an alarm is issued when the inspection fails. Gas adsorption pipelines are placed in different areas inside the thermal power plant to fully improve the sample sampling rate, improve the monitoring efficiency, improve the qualified rate of waste gas, directly purify it to the emission state, and improve the utilization rate of waste gas.

[0019] 3. The present invention sets monitoring sensors at the exhaust gas inlet and exhaust gas outlet, receives data from the exhaust gas inlet and exhaust gas outlet sensors, calculates the exhaust gas treatment efficiency based on the received data, sets an appropriate exhaust gas treatment equipment control mode, and sends control instructions to the exhaust gas treatment equipment, so that the exhaust gas treatment equipment can adjust its working state according to the imported exhaust gas concentration and the current operating state of the equipment to achieve an optimized operating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the system framework process structure of a thermal power plant exhaust gas monitoring and control system proposed by the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0022] Example 1

[0023] Reference Figure 1A thermal power plant exhaust gas monitoring and control system includes a monitoring central station and a monitoring substation set at a monitoring point. The monitoring pole central station includes a central control module and a first wireless communication module. The monitoring substation includes an exhaust gas inspection module, an exhaust gas monitoring module, a detection alarm module, an exhaust gas treatment monitoring module, a second wireless communication module and an exhaust gas treatment monitoring data processing module. The central control module is connected to the first wireless communication module, and the second wireless communication module is wirelessly connected to the first wireless communication module to transmit the data of the monitoring substation to the monitoring central station. Through the real-time monitoring of each monitoring substation by the monitoring central station, the data of each monitoring substation can be accurately obtained in real time. At the same time, wireless The line communication module transmits data through the wireless communication network. The data conversion format and transmission method are matched, and the monitoring error is small, which provides important and accurate monitoring data for pollution control work. The exhaust gas inspection module, the exhaust gas monitoring module, the detection alarm module, the exhaust gas treatment monitoring module, and the exhaust gas treatment monitoring data processing module are connected. The exhaust gas treatment monitoring data processing module is wirelessly connected to the second wireless communication module. The exhaust gas treatment monitoring module is used to purify the exhaust gas inside the thermal power plant and monitor the exhaust gas during the treatment. The exhaust gas treatment monitoring data processing module is used to process the real-time data monitored during the exhaust gas treatment and transmit the data to the second wireless communication module.

[0024] In the present invention, the waste gas monitoring module is used to monitor the waste gas inside the thermal power plant, the detection alarm module is used to issue an alarm prompt based on the monitoring data of the waste gas monitoring module, and a waste gas inspection module is set to re-detect the air of the thermal power plant after the waste gas is purified. The waste gas inspection module is connected to the detection alarm module to ensure that the air quality inside the thermal power plant is good. At the same time, an alarm is issued when the inspection fails. Gas adsorption pipelines are placed in different areas inside the thermal power plant to fully improve the sample sampling rate, improve the monitoring efficiency, and improve the qualified rate of waste gas. It is directly purified to the emission state and the utilization rate of waste gas is improved. The waste gas treatment monitoring module includes a waste gas treatment device and a waste gas treatment monitoring controller. The waste gas treatment device is connected to the waste gas treatment monitoring controller by signal. The waste gas treatment device also includes monitoring sensors arranged at the waste gas inlet and the waste gas outlet. The waste gas treatment device includes a purification box, a purification box Multiple carbon adsorption membranes and air purifiers are placed inside the body, and an air compressor is provided on one side of the carbon adsorption membrane. The exhaust gas inspection module is used to inspect the exhaust gas after the exhaust gas purification treatment is completed. The exhaust gas inspection module is used to detect SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercury, as well as temperature, flue gas flow, pressure, and moisture content of the treated exhaust gas. The exhaust gas inspection module includes a sample gas collection device, which is used to collect samples of the treated exhaust gas. Monitoring sensors are set at the exhaust gas inlet and the exhaust gas outlet to receive data from the sensors at the exhaust gas inlet and the exhaust gas outlet, and the exhaust gas treatment efficiency is calculated based on the received data. An appropriate exhaust gas treatment equipment control mode is set, and a control instruction is sent to the exhaust gas treatment equipment, so that the exhaust gas treatment equipment can adjust its working state according to the imported exhaust gas concentration and the current operating state of the equipment to achieve an optimized operating effect.

[0025] Example 2

[0026] Reference Figure 1A thermal power plant exhaust gas monitoring and control system includes a monitoring central station and a monitoring substation set at a monitoring point. The monitoring pole central station includes a central control module and a first wireless communication module. The monitoring substation includes an exhaust gas inspection module, an exhaust gas monitoring module, a detection alarm module, an exhaust gas treatment monitoring module, a second wireless communication module and an exhaust gas treatment monitoring data processing module. The central control module is connected to the first wireless communication module, and the second wireless communication module is wirelessly connected to the first wireless communication module to transmit the data of the monitoring substation to the monitoring central station. Through the real-time monitoring of each monitoring substation by the monitoring central station, the data of each monitoring substation can be accurately obtained in real time. At the same time, wireless The line communication module transmits data through the wireless communication network. The data conversion format and transmission method are matched, and the monitoring error is small, which provides important and accurate monitoring data for pollution control work. The exhaust gas inspection module, the exhaust gas monitoring module, the detection alarm module, the exhaust gas treatment monitoring module, and the exhaust gas treatment monitoring data processing module are connected. The exhaust gas treatment monitoring data processing module is wirelessly connected to the second wireless communication module. The exhaust gas treatment monitoring module is used to purify the exhaust gas inside the thermal power plant and monitor the exhaust gas during the treatment. The exhaust gas treatment monitoring data processing module is used to process the real-time data monitored during the exhaust gas treatment and transmit the data to the second wireless communication module.

[0027] In the present invention, the waste gas monitoring module is used to monitor the waste gas inside the thermal power plant, the detection alarm module is used to issue an alarm prompt based on the monitoring data of the waste gas monitoring module, and a waste gas inspection module is set to re-detect the air of the thermal power plant after the waste gas is purified. The waste gas inspection module is connected to the detection alarm module to ensure that the air quality inside the thermal power plant is good. At the same time, an alarm is issued when the inspection fails. Gas adsorption pipelines are placed in different areas inside the thermal power plant to fully improve the sample sampling rate, improve the monitoring efficiency, and improve the qualified rate of waste gas. It is directly purified to the emission state and the utilization rate of waste gas is improved. The waste gas treatment monitoring module includes a waste gas treatment device and a waste gas treatment monitoring controller. The waste gas treatment device is connected to the waste gas treatment monitoring controller by signal. The waste gas treatment device also includes monitoring sensors arranged at the waste gas inlet and the waste gas outlet. The waste gas treatment device includes a purification box, a purification box Multiple carbon adsorption membranes and air purifiers are placed inside the body, and an air compressor is provided on one side of the carbon adsorption membrane. The exhaust gas inspection module is used to inspect the exhaust gas after the exhaust gas purification treatment is completed. The exhaust gas inspection module is used to detect SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercury, as well as temperature, flue gas flow, pressure, and flue gas oxygen content in the treated exhaust gas. The exhaust gas inspection module includes a sample gas collection device, which is used to collect samples of the treated exhaust gas. Monitoring sensors are set at the exhaust gas inlet and the exhaust gas outlet to receive data from the sensors at the exhaust gas inlet and the exhaust gas outlet, and the exhaust gas treatment efficiency is calculated based on the received data. An appropriate exhaust gas treatment equipment control mode is set, and a control instruction is sent to the exhaust gas treatment equipment, so that the exhaust gas treatment equipment can adjust its working state according to the imported exhaust gas concentration and the current operating state of the equipment to achieve an optimized operating effect.

[0028] Example 3

[0029] Reference Figure 1A thermal power plant exhaust gas monitoring and control system includes a monitoring central station and a monitoring substation set at a monitoring point. The monitoring pole central station includes a central control module and a first wireless communication module. The monitoring substation includes an exhaust gas inspection module, an exhaust gas monitoring module, a detection alarm module, an exhaust gas treatment monitoring module, a second wireless communication module and an exhaust gas treatment monitoring data processing module. The central control module is connected to the first wireless communication module, and the second wireless communication module is wirelessly connected to the first wireless communication module to transmit the data of the monitoring substation to the monitoring central station. Through the real-time monitoring of each monitoring substation by the monitoring central station, the data of each monitoring substation can be accurately obtained in real time. At the same time, wireless The line communication module transmits data through the wireless communication network. The data conversion format and transmission method are matched, and the monitoring error is small, which provides important and accurate monitoring data for pollution control work. The exhaust gas inspection module, the exhaust gas monitoring module, the detection alarm module, the exhaust gas treatment monitoring module, and the exhaust gas treatment monitoring data processing module are connected. The exhaust gas treatment monitoring data processing module is wirelessly connected to the second wireless communication module. The exhaust gas treatment monitoring module is used to purify the exhaust gas inside the thermal power plant and monitor the exhaust gas during the treatment. The exhaust gas treatment monitoring data processing module is used to process the real-time data monitored during the exhaust gas treatment and transmit the data to the second wireless communication module.

[0030] In the present invention, the exhaust gas monitoring module is used to monitor the exhaust gas inside the thermal power plant, the detection alarm module is used to issue an alarm prompt based on the monitoring data of the exhaust gas monitoring module, and an exhaust gas inspection module is set to re-detect the air of the thermal power plant after the exhaust gas is purified. The exhaust gas inspection module is connected to the detection alarm module to ensure that the air quality inside the thermal power plant is good. At the same time, an alarm is issued when the inspection fails. Gas adsorption pipelines are placed in different areas inside the thermal power plant to fully improve the sample sampling rate, improve the monitoring efficiency, and improve the qualified rate of the exhaust gas. It is directly purified to the emission state and the utilization rate of the exhaust gas is improved. The exhaust gas treatment monitoring module includes an exhaust gas treatment device and an exhaust gas treatment monitoring controller. The exhaust gas treatment device is connected to the exhaust gas treatment monitoring controller by signal. The exhaust gas treatment device also includes monitoring sensors arranged at the exhaust gas inlet and the exhaust gas outlet. The exhaust gas treatment device includes a purification box, and the inside of the purification box Multiple carbon adsorption membranes and air purifiers are placed, and an air compressor is provided on one side of the carbon adsorption membrane. The exhaust gas inspection module is used to inspect the exhaust gas after the exhaust gas purification treatment is completed. The exhaust gas inspection module is used to detect SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercury, as well as temperature, flue gas flow, pressure, flue gas oxygen content, and flue gas moisture content in the treated exhaust gas. The exhaust gas inspection module includes a sample gas collection device, and the sample gas collection device is used to collect samples of the treated exhaust gas. By setting monitoring sensors at the exhaust gas inlet and the exhaust gas outlet, receiving data from the sensors at the exhaust gas inlet and the exhaust gas outlet, and calculating the exhaust gas treatment efficiency based on the received data, setting an appropriate exhaust gas treatment equipment control mode, and sending control instructions to the exhaust gas treatment equipment, the exhaust gas treatment equipment can adjust the working state according to the imported exhaust gas concentration and the current operating state of the equipment to achieve an optimized operating effect.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste gas monitoring and control system for a thermal power plant, comprising a monitoring central station and a monitoring substation arranged at a monitoring point, characterized in that: The monitoring pole central station includes a central control module and a first wireless communication module, the monitoring substation includes an exhaust gas inspection module, an exhaust gas monitoring module, a detection and alarm module, an exhaust gas treatment monitoring module, a second wireless communication module and an exhaust gas treatment monitoring data processing module, the central control module is connected to the first wireless communication module, the second wireless communication module is wirelessly connected to the first wireless communication module, and is used to transmit the data of the monitoring substation to the monitoring central station, the exhaust gas inspection module, the exhaust gas monitoring module, the detection and alarm module, the exhaust gas treatment monitoring module, and the exhaust gas treatment monitoring data processing module are connected, the exhaust gas treatment monitoring data processing module is wirelessly connected to the second wireless communication module, the exhaust gas treatment monitoring module is used to purify the exhaust gas inside the thermal power plant and monitor the exhaust gas during the treatment, and the exhaust gas treatment monitoring data processing module is used to process the real-time data monitored during the exhaust gas treatment and transmit the data to the second wireless communication module.

2. A thermal power plant exhaust gas monitoring and control system according to claim 1, characterized in that: The exhaust gas monitoring module is used to monitor the exhaust gas inside the thermal power plant, and the detection alarm module is used to issue an alarm prompt based on the monitoring data of the exhaust gas monitoring module.

3. A thermal power plant exhaust gas monitoring and control system according to claim 2, characterized in that: The exhaust gas treatment monitoring module includes an exhaust gas treatment device and an exhaust gas treatment monitoring controller.

4. A thermal power plant exhaust gas monitoring and control system according to claim 1, characterized in that: The exhaust gas treatment device is connected to the exhaust gas treatment monitoring controller by signal, and the exhaust gas treatment device also includes monitoring sensors arranged at the exhaust gas inlet and the exhaust gas outlet.

5. A thermal power plant exhaust gas monitoring and control system according to claim 4, characterized in that: The waste gas treatment equipment comprises a purification box, a plurality of carbon adsorption membranes and an air purifier are placed inside the purification box, and an air compressor is arranged on one side of the carbon adsorption membrane.

6. A thermal power plant exhaust gas monitoring and control system according to claim 1, characterized in that: The exhaust gas inspection module is used to inspect the exhaust gas after the exhaust gas purification process is completed.

7. A thermal power plant exhaust gas monitoring and control system according to claim 6, characterized in that: The exhaust gas inspection module is used to detect any of SO2, CO, NO, NO2, O2, dust, hydride, fluoride, mercury, and temperature, flue gas flow, pressure, flue gas oxygen content, and flue gas moisture content in the treated exhaust gas.

8. A thermal power plant exhaust gas monitoring and control system according to claim 7, characterized in that: The exhaust gas inspection module includes a gas sample collection device, and the gas sample collection device is used to collect samples of the treated exhaust gas.

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