Tail gas measurement and control system of diesel generating set

Abstract

The utility model provides a tail gas measurement and control system of a diesel generating set, which utilizes a power supply module to supply power to each functional module, an acquisition module sends acquired tail gas data discharged by the diesel generating set to a control module, the tail gas data is processed by the control module and then sent to a display module for visualization, and when the discharged tail gas data exceeds a preset threshold value, the display module displays the tail gas data. The control module sends an alarm starting instruction to the alarm module and sends a control instruction to a control assembly of the diesel generating set to control operation of the diesel generating set, and the alarm module gives an alarm according to the alarm instruction and sends the alarm to the diesel generating set tail gas management system platform through the communication module to manage data. The diesel generating set tail gas management system platform sends a control signal to the control module through the communication module so as to control a control assembly of the diesel generating set; remote monitoring and intelligent control can be carried out on tail gas emission of the diesel generating set in real time, and it is ensured that tail gas emission of the diesel generating set meets the environmental protection requirement.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas measurement and control technology, and in particular to an exhaust gas measurement and control system for diesel generator sets. Background Technology

[0002] Diesel generator sets emit exhaust gases containing large amounts of particulate matter, hydrocarbons, carbon monoxide, carbon dioxide, nitrogen oxides, water vapor, oxygen, nitrogen, and sulfur dioxide. The main component is particulate matter, and its emissions are dozens of times higher than those of gasoline engines. This poses a serious threat to air quality, the environment, and human health. Prolonged exposure to these pollutants may lead to a range of health problems, including respiratory diseases, cardiovascular diseases, and cancer.

[0003] Traditional monitoring methods involve manual sampling and analysis, which suffers from long detection cycles, data lag, and heavy workload, making it impossible to monitor exhaust emissions in real time. Many diesel generator emission monitoring devices have not yet achieved automated monitoring, requiring manual intervention and maintenance, which increases the cost of using the equipment and the difficulty of management.

[0004] The existing technology uses portable emission testing instruments for monitoring. These portable emission testing instruments can be used to test the exhaust emissions of diesel generators on-site. These devices are directly connected to the exhaust pipe through a sampling tube for testing. Although they are convenient for moving and on-site testing, their testing time is short and they cannot perform long-term monitoring, nor can they automatically adjust the operating status of the diesel generator set when emissions exceed the standard. Utility Model Content

[0005] This utility model provides a diesel generator set exhaust gas monitoring and control system, the purpose of which is to remotely monitor and control the exhaust gas emissions of the diesel generator set in real time.

[0006] To achieve the above objectives, this utility model provides a diesel generator set exhaust gas monitoring and control system, comprising:

[0007] The diesel generator set exhaust gas management system platform includes a power module, a data acquisition module, a control module, a communication module, a display module, and an alarm module.

[0008] The input terminals of the power module are connected to the mains power terminal and the output terminal of the battery, respectively. The output terminals of the power module are connected to the power terminals of the acquisition module, the control module, the communication module, the display module, and the alarm module, respectively.

[0009] The output of the acquisition module is connected to the first input of the control module;

[0010] The first output of the control module is connected to the input of the diesel generator set exhaust gas management system platform via a communication module;

[0011] The output of the diesel generator set exhaust gas management system platform is connected to the second input of the control module via a communication module.

[0012] The second output terminal of the control module is connected to the input terminal of the alarm module, the input terminal of the display module, and the input terminal of the diesel generator set control assembly, respectively.

[0013] Furthermore, the power module includes:

[0014] Power switching unit, power conversion unit, power distribution unit, power protection unit;

[0015] The input terminals of the power switching unit are connected to the AC power terminal and the battery output terminal, respectively;

[0016] The output of the power switching unit is connected to the input of the power conversion unit;

[0017] The output of the power conversion unit is connected to the input of the power distribution unit;

[0018] The output terminal of the power distribution unit is connected to the input terminal of the power protection unit;

[0019] The output terminals of the power protection unit are connected to the power terminals of the acquisition module, control module, communication module, display module, and alarm module, respectively.

[0020] Furthermore, the data acquisition module includes:

[0021] Temperature sensors are installed in the middle of the exhaust pipe of a diesel generator set or near the exhaust aftertreatment device in the diesel generator set to collect the temperature of the exhaust gas emitted by the diesel generator set.

[0022] An exhaust pressure sensor is installed at the front end of the exhaust aftertreatment device in a diesel generator set to collect pressure changes in the exhaust pipe of the diesel generator set.

[0023] An oxygen sensor is installed at the exhaust outlet of the diesel generator set's engine to collect the oxygen concentration in the exhaust gas emitted by the diesel generator set.

[0024] The nitrogen oxide sensor includes two sensors, which are respectively installed at the front end and the rear end of the exhaust aftertreatment device in the diesel generator set, and are used to collect nitrogen oxides in the exhaust gas emitted by the diesel generator set.

[0025] A carbon monoxide sensor is installed at the front end of the exhaust aftertreatment device in a diesel generator set to collect the carbon monoxide concentration in the exhaust gas emitted by the diesel generator set.

[0026] A carbon dioxide sensor is installed in the diesel generator set near the exhaust outlet to collect the carbon dioxide concentration in the exhaust gas emitted by the diesel generator set.

[0027] The particulate matter sensor includes two sensors, which are respectively installed at the front end and the rear end of the exhaust aftertreatment device in the diesel generator set, and are used to collect solid particulate matter in the exhaust gas emitted by the diesel generator set.

[0028] The power supply terminals of the temperature sensor, exhaust pressure sensor, oxygen sensor, nitrogen oxide sensor, carbon monoxide sensor, carbon dioxide sensor, and particulate matter sensor are all connected to the output terminal of the power protection unit.

[0029] The output terminals of the temperature sensor, exhaust pressure sensor, oxygen sensor, nitrogen oxide sensor, carbon monoxide sensor, carbon dioxide sensor, and particulate matter sensor are all connected to the first input terminal of the control module.

[0030] Furthermore, the control module includes:

[0031] Signal conversion unit, signal amplification unit, processing unit, emission control unit, fuel control unit, combustion efficiency adjustment unit, start-stop control unit;

[0032] The power supply terminals of the signal conversion unit, signal amplification unit, processing unit, emission control unit, fuel control unit, combustion efficiency adjustment unit, and start-stop control unit are all connected to the output terminal of the power protection unit.

[0033] The input terminals of the signal conversion unit are connected to the output terminals of the temperature sensor, the exhaust pressure sensor, the oxygen sensor, the nitrogen oxide sensor, the carbon monoxide sensor, the carbon dioxide sensor, and the particulate matter sensor, respectively.

[0034] The output of the signal conversion unit is connected to the input of the signal amplification unit;

[0035] The output of the signal amplification unit is connected to the first input of the processing unit;

[0036] The first output of the processing unit is connected to the input of the diesel generator set exhaust gas management system platform via a communication module;

[0037] The output of the diesel generator set exhaust gas management system platform is connected to the second input of the processing unit via a communication module.

[0038] The second output terminal of the processing unit is connected to the input terminal of the emission control unit, the input terminal of the fuel control unit, the input terminal of the combustion efficiency adjustment unit, the input terminal of the start-stop control unit, the input terminal of the alarm module, and the input terminal of the display module, respectively. The output terminal of the emission control unit is connected to the control terminal of the exhaust aftertreatment device in the diesel generator set. The output terminals of the fuel control unit and the combustion efficiency adjustment unit are both connected to the input terminal of the fuel control system in the diesel generator set. The output terminal of the start-stop control unit is connected to the control terminal of the generator assembly in the diesel generator set.

[0039] Furthermore, the control module also includes a data encryption unit;

[0040] The input terminal of the data encryption unit is connected to the first output terminal of the processing unit;

[0041] The output of the data encryption unit is connected to the input of the diesel generator set exhaust gas management system platform via a communication module.

[0042] Furthermore, the communication module includes:

[0043] Wireless communication unit and Ethernet communication unit;

[0044] The power supply terminals of the wireless communication unit and the Ethernet communication unit are both connected to the output terminal of the power protection unit.

[0045] When the control module sends the collected data to the diesel generator set exhaust gas management system platform, the wireless communication unit is used to connect the data encryption unit and the diesel generator set exhaust gas management system platform.

[0046] When the diesel generator set exhaust gas management system platform sends control commands to the control module, the wireless communication unit is used to connect the processing unit and the diesel generator set exhaust gas management system platform.

[0047] Furthermore, the display module is a thin-film transistor display;

[0048] The power supply terminal of the thin-film transistor display is connected to the output terminal of the power protection unit;

[0049] The input terminal of the thin-film transistor display is connected to the second output terminal of the processing unit.

[0050] Furthermore, the alarm module includes a voice announcer and an alarm light;

[0051] The power supply terminals of the voice broadcaster and the alarm light are both connected to the output terminal of the power protection unit.

[0052] The input terminals of the voice broadcaster and the alarm light are both connected to the second output terminal of the processing unit.

[0053] Furthermore, it also includes a self-diagnostic module;

[0054] The power supply terminal of the self-diagnostic module is connected to the input terminal of the power protection unit;

[0055] The control terminal of the self-diagnostic module is connected to the third output terminal of the processing unit;

[0056] The output of the self-diagnostic module is connected to the third input of the processing unit.

[0057] Furthermore, it also includes a storage module;

[0058] The data transmission end of the storage module is connected to the data transmission end of the processing unit.

[0059] The above-mentioned solution of this utility model has the following beneficial effects:

[0060] This invention includes a diesel generator set exhaust gas management system platform, a power supply module, a data acquisition module, a control module, a communication module, a display module, and an alarm module. The power supply module supplies power to each functional module. The data acquisition module sends the collected exhaust gas data of the diesel generator set to the control module. After processing by the control module, the data is sent to the display module for visualization. When the exhaust gas data exceeds a preset threshold, the control module sends an alarm start command to the alarm module and a control command to the control assembly of the diesel generator set to control its operation. The alarm module issues an alarm based on the alarm command and sends it to the diesel generator set exhaust gas management system platform via the communication module for data management. The diesel generator set exhaust gas management system platform sends control signals to the control module via the communication module to control the control assembly of the diesel generator set. Compared with the prior art, this invention can remotely monitor and intelligently control the exhaust gas emissions of the diesel generator set in real time, thereby reducing the emission of pollutants in the exhaust gas and ensuring that the exhaust gas emissions of the diesel generator set meet environmental protection requirements.

[0061] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0062] Figure 1 This is a general principle block diagram of an embodiment of the present utility model;

[0063] Figure 2 This is a schematic diagram of some modules in an embodiment of the present invention. Detailed Implementation

[0064] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0065] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0066] like Figure 1 As shown, an embodiment of this utility model provides an exhaust gas monitoring and control system for a diesel generator set, comprising:

[0067] A diesel generator set exhaust gas management system platform with functions of equipment management, equipment monitoring, user management, and access control, including a power module, data acquisition module, control module, communication module, display module, and alarm module;

[0068] The input terminals of the power module are connected to the mains power terminal and the output terminal of the battery, respectively. The output terminals of the power module are connected to the power terminals of the acquisition module, the control module, the communication module, the display module, and the alarm module, respectively.

[0069] The output of the acquisition module is connected to the first input of the control module;

[0070] The first output of the control module is connected to the input of the diesel generator set exhaust gas management system platform via a communication module;

[0071] The output of the diesel generator set exhaust gas management system platform is connected to the second input of the control module via a communication module.

[0072] The second output terminal of the control module is connected to the input terminal of the alarm module, the input terminal of the display module, and the input terminal of the diesel generator set control assembly, respectively.

[0073] The working principle of this utility model embodiment is as follows:

[0074] The power module supplies power to the acquisition module, control module, communication module, display module, and alarm module from the mains power or battery power. The acquisition module sends the collected exhaust gas data of the diesel generator set to the control module. After processing by the control module, the data is sent to the display module for visualization. When the exhaust gas data exceeds a preset threshold, the control module sends an alarm start command to the alarm module and a control command to the control assembly of the diesel generator set to control its operation. The alarm module issues an alarm based on the alarm command and sends it to the diesel generator set exhaust gas management system platform through the communication module to manage the data. The diesel generator set exhaust gas management system platform sends control signals to the control module through the communication module to control the control assembly of the diesel generator set.

[0075] In this embodiment of the utility model, the diesel generator set exhaust gas management system platform is a conventional system platform, which has an algorithm module, a configurable communication protocol module, a client interface module, a cloud platform database, and an alarm module. Remote monitoring of diesel generator set exhaust gas emissions using mobile terminals or desktop computer devices is a function inherent in conventional system platforms. This embodiment of the utility model does not make any software algorithm improvements to the system platform.

[0076] Preferably, the power module includes:

[0077] Power switching unit, power conversion unit for converting the connected power supply, power distribution unit for distributing the converted power supply according to the power requirements of each functional module, and power protection unit for providing voltage protection, current protection, power protection and voltage regulation protection to each functional module.

[0078] The input terminal of the power switching unit is connected to the mains power terminal and the output terminal of the battery respectively. When the mains power terminal cannot provide power, the battery is switched to serve as a backup power source to provide uninterrupted power supply.

[0079] The output of the power switching unit is connected to the input of the power conversion unit;

[0080] The output of the power conversion unit is connected to the input of the power distribution unit;

[0081] The output terminal of the power distribution unit is connected to the input terminal of the power protection unit;

[0082] The output terminals of the power protection unit are connected to the power terminals of the acquisition module, control module, communication module, display module, and alarm module, respectively.

[0083] It should be noted that the power switching unit, power conversion unit, power distribution unit, and power protection unit are all implemented using conventional circuits in the art. This utility model embodiment does not involve any improvement in the circuit structure and principle of these units. Therefore, the principles and processes of switching, conversion, power distribution, and power protection implemented internally will not be described in detail in this utility model embodiment.

[0084] The optimal choice is, such as Figure 2 As shown, the acquisition module includes:

[0085] Temperature sensors are installed in the middle of the exhaust pipe of a diesel generator set or near the exhaust aftertreatment device in the diesel generator set. They are used to collect the temperature of the exhaust gas emitted by the diesel generator set and can reflect the temperature changes during the fuel combustion process.

[0086] The exhaust pressure sensor is installed at the front end of the exhaust aftertreatment device in the diesel generator set. It is used to collect pressure changes in the exhaust pipe of the diesel generator set to ensure that the exhaust aftertreatment device in the diesel generator set is not blocked. When the exhaust aftertreatment device is blocked, the pressure will increase, and the exhaust pressure sensor can monitor this change in real time.

[0087] An oxygen sensor, installed at the exhaust outlet of a diesel generator set's engine, is used to collect the oxygen concentration in the exhaust gas emitted by the diesel generator set. It can reflect the oxygen consumption of the fuel throughout the combustion process, thereby determining whether the combustion is complete. If the oxygen concentration is too high, it indicates incomplete combustion; if the oxygen concentration is too low, it indicates that there may be incomplete combustion.

[0088] The nitrogen oxide sensor comprises two sensors, one installed at the front end and the other at the rear end of the exhaust aftertreatment device in the diesel generator set. These sensors are used to collect nitrogen oxides in the exhaust gas emitted by the diesel generator set. The nitrogen oxide sensor installed at the front end of the exhaust aftertreatment device collects the nitrogen oxide content directly emitted by the diesel generator set, while the nitrogen oxide sensor installed at the rear end collects the nitrogen oxide content after treatment by the exhaust aftertreatment device. The nitrogen oxide content collected by the two sensors can determine whether the exhaust aftertreatment device effectively reduces the nitrogen oxide content.

[0089] A carbon monoxide sensor is installed at the front end of the exhaust aftertreatment device in a diesel generator set. It is used to collect the carbon monoxide concentration in the exhaust gas emitted by the diesel generator set and can determine whether the fuel combustion of the diesel generator is complete.

[0090] A carbon dioxide sensor is installed in the diesel generator set near the exhaust outlet to collect the carbon dioxide concentration in the exhaust gas emitted by the diesel generator set.

[0091] The particulate matter sensor comprises two sensors, one installed at the front end and the other at the rear end of the exhaust aftertreatment device in the diesel generator set. These sensors are used to collect solid particulate matter in the exhaust gas emitted by the diesel generator set. The particulate matter sensor installed at the front end of the exhaust aftertreatment device collects the particulate matter content directly emitted by the diesel generator set, while the particulate matter sensor installed at the rear end collects the particulate matter content after treatment by the exhaust aftertreatment device. The particulate matter content collected by the two sensors can be used to assess the efficiency of the exhaust aftertreatment device in capturing particulate matter.

[0092] The power supply terminals of the temperature sensor, exhaust pressure sensor, oxygen sensor, nitrogen oxide sensor, carbon monoxide sensor, carbon dioxide sensor, and particulate matter sensor are all connected to the output terminal of the power protection unit.

[0093] The output terminals of the temperature sensor, exhaust pressure sensor, oxygen sensor, nitrogen oxide sensor, carbon monoxide sensor, carbon dioxide sensor, and particulate matter sensor are all connected to the first input terminal of the control module, and the collected temperature data, pressure change data, oxygen content, nitrogen oxide content, carbon monoxide content, carbon dioxide content, and particulate matter content are sent to the control module.

[0094] It should be noted that the above-mentioned sensors are all conventional sensors that can be purchased on the market. This utility model embodiment does not limit their models, nor does it involve any improvement to their internal structure. Therefore, their working principles and internal structural components will not be described in detail.

[0095] The optimal choice is, such as Figure 2 As shown, the control module includes:

[0096] Signal conversion unit for converting analog signals to digital signals, signal amplification unit for amplifying signals, processing unit, emission control unit for controlling exhaust aftertreatment device, fuel control unit for controlling fuel control system in diesel generator set, combustion efficiency adjustment unit, and start-stop control unit for controlling start-stop of diesel generator set.

[0097] The power supply terminals of the signal conversion unit, signal amplification unit, processing unit, emission control unit, fuel control unit, combustion efficiency adjustment unit, and start-stop control unit are all connected to the output terminal of the power protection unit.

[0098] The input terminals of the signal conversion unit are connected to the output terminals of the temperature sensor, the exhaust pressure sensor, the oxygen sensor, the nitrogen oxide sensor, the carbon monoxide sensor, the carbon dioxide sensor, and the particulate matter sensor, respectively.

[0099] The output of the signal conversion unit is connected to the input of the signal amplification unit;

[0100] The output of the signal amplification unit is connected to the first input of the processing unit;

[0101] The first output of the processing unit is connected to the input of the diesel generator set exhaust gas management system platform via a communication module;

[0102] The output of the diesel generator set exhaust gas management system platform is connected to the second input of the processing unit via a communication module.

[0103] The second output terminal of the processing unit is connected to the input terminals of the emission control unit, the fuel control unit, the combustion efficiency adjustment unit, the start-stop control unit, the alarm module, and the display module, respectively. The output terminal of the emission control unit is connected to the control terminal of the exhaust aftertreatment device in the diesel generator set, and is used to send control commands to the exhaust aftertreatment device in the diesel generator set to control its operation. The output terminals of the fuel control unit and the combustion efficiency adjustment unit are both connected to the input terminals of the fuel control system in the diesel generator set, and are used to send control commands to the fuel control system in the diesel generator set to control its operation. The output terminal of the start-stop control unit is connected to the control terminal of the generator assembly in the diesel generator set, and is used to send control commands to the generator assembly in the diesel generator set to control its start-stop.

[0104] It should be noted that the signal conversion unit can be an analog-to-digital converter (ADC), the signal amplification unit can be composed of operational amplifiers, and the processing unit can be a conventional microprocessor, a programmable logic controller (PLC), or a processor composed of a microcontroller chip and its peripheral circuits. It is responsible for receiving data from various sensors and modules, processing and analyzing it, and responding according to preset control logic. The aforementioned microprocessor, programmable logic controller, microcontroller chip, and its peripheral circuits inherently possess the function of receiving data from various sensors and modules, processing and analyzing it. Therefore, this utility model embodiment does not involve any improvement to the software algorithm.

[0105] It should also be noted that the emission control unit, fuel control unit, combustion efficiency adjustment unit, and start-stop control unit are unit names defined according to their functions. They are essentially conventional controllers. In this field, generating control commands based on control signals is a function inherent in conventional controllers. This utility model embodiment does not involve any improvement to their internal working principle or software algorithm.

[0106] In this embodiment of the invention, the exhaust aftertreatment device in the diesel generator set includes a selective catalytic reduction device, a diesel particulate filter, and an exhaust gas recirculation device. The selective catalytic reduction device reacts with nitrogen oxides by injecting a reducing agent (such as urea solution) to convert nitrogen oxides into nitrogen and water, significantly reducing nitrogen oxide emissions. The diesel particulate filter reduces PM emissions by filtering and accumulating particulate matter (PM) in diesel engine emissions and regenerating it periodically. The exhaust gas recirculation device reduces the combustion temperature and nitrogen oxide generation by reintroducing a portion of the exhaust gas into the engine combustion chamber.

[0107] Preferably, the control module further includes a data encryption unit for encrypting the data output by the processing unit;

[0108] The input end of the data encryption unit is connected to the first output end of the processing unit, and is used to receive working data and parameters sent by the processing unit, such as various sensor data, emission indicators, system status, etc.

[0109] The output of the data encryption unit is connected to the input of the diesel generator set exhaust gas management system platform via a communication module. This is used to send the received working data and parameters, such as various sensor data, emission indicators, and system status, to the diesel generator set exhaust gas management system platform.

[0110] It should be noted that the data encryption unit used in this embodiment of the present invention is a conventional encryptor. Encrypting the input data is a function inherent in conventional encryptors. This embodiment of the present invention does not involve any improvement to its internal structure or software algorithm, and therefore its specific implementation process will not be described in detail.

[0111] Preferably, the communication module includes:

[0112] Wireless communication unit and Ethernet communication unit;

[0113] The power supply terminals of the wireless communication unit and the Ethernet communication unit are both connected to the output terminal of the power protection unit.

[0114] When the control module sends the collected data to the diesel generator set exhaust gas management system platform, the wireless communication unit is used to connect the data encryption unit and the diesel generator set exhaust gas management system platform, and to upload the received data to the exhaust gas management platform in real time for remote monitoring.

[0115] When the diesel generator set exhaust gas management system platform sends control commands to the control module, the wireless communication unit is used to connect the processing unit and the diesel generator set exhaust gas management system platform.

[0116] It should be noted that the wireless communication unit adopts a conventional 4G communication module or a WIFI communication unit. The remote data transmission through the 4G communication module or WIFI communication unit is a function inherent in the 4G communication module or WIFI communication unit itself; the Ethernet communication unit is a conventional wired communication device, and this utility model embodiment does not involve any improvement to its structure or software algorithm.

[0117] The preferred embodiment is a thin-film transistor display (TFT-LCD).

[0118] The power supply terminal of the thin-film transistor display is connected to the output terminal of the power protection unit;

[0119] The input terminal of the thin-film transistor display is connected to the second output terminal of the processing unit to display the sensor's operating status and the various data collected.

[0120] Ideally, the alarm module includes a voice announcer and an alarm light;

[0121] The power supply terminals of the voice broadcaster and the alarm light are both connected to the output terminal of the power protection unit.

[0122] The input terminals of the voice broadcaster and the alarm light are both connected to the second output terminal of the processing unit;

[0123] When the data collected by the sensor exceeds a preset threshold, the processing unit sends control commands to the voice announcer and the alarm light to start the voice announcer and the alarm light to start flashing until the abnormality is resolved.

[0124] Ideally, it should also include a self-diagnostic module;

[0125] The power supply terminal of the self-diagnostic module is connected to the input terminal of the power protection unit;

[0126] The control terminal of the self-diagnostic module is connected to the third output terminal of the processing unit;

[0127] The output of the self-diagnostic module is connected to the third input of the processing unit.

[0128] In order to improve the processing unit's ability to respond to abnormal signals, this embodiment of the utility model requires a self-diagnostic module to perform self-checks on it periodically. The self-diagnostic module releases a self-check signal to the processing unit to perform a self-check on the entire exhaust gas monitoring and control system, ensuring that the exhaust gas monitoring and control system is in normal condition. The self-check results are then sent to the processing unit for analysis and feedback to the diesel generator set exhaust gas management system platform.

[0129] It should be noted that the self-diagnosis module is a conventional self-testing device. Comparing the data input by the device is a function inherent to the self-testing device itself. This embodiment of the utility model does not involve any improvement to the software algorithm of the self-testing device.

[0130] Ideally, it also includes a storage module;

[0131] The data transmission end of the storage module is connected to the data transmission end of the processing unit.

[0132] It should be noted that the storage module used in this embodiment of the present invention can be an internal storage unit set inside the processing module, or it can be an externally inserted memory card, i.e., an SD card.

[0133] This utility model embodiment includes a diesel generator set exhaust gas management system platform, a power supply module, a data acquisition module, a control module, a communication module, a display module, and an alarm module. The power supply module supplies power to each functional module. The data acquisition module sends the collected exhaust gas data of the diesel generator set to the control module. After processing by the control module, the data is sent to the display module for visualization. When the exhaust gas data exceeds a preset threshold, the control module sends an alarm start command to the alarm module and a control command to the control assembly of the diesel generator set to control its operation. The alarm module issues an alarm based on the alarm command and sends it to the diesel generator set exhaust gas management system platform via the communication module to manage the data. The diesel generator set exhaust gas management system platform sends control signals to the control module via the communication module to control the control assembly of the diesel generator set. Compared with the prior art, this utility model embodiment can remotely monitor and intelligently control the exhaust gas emissions of the diesel generator set in real time to reduce the emission of pollutants in the exhaust gas and ensure that the exhaust gas emissions of the diesel generator set meet environmental protection requirements.

[0134] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A diesel generator set exhaust gas monitoring and control system, characterized in that, The diesel generating set tail gas management system platform, the power module, the acquisition module, the control module, the communication module, the display module and the alarm module are included. The input end of the power module is connected with the output end of the city power and the battery respectively, and the output end of the power module is connected with the power end of the acquisition module, the power end of the control module, the power end of the communication module, the power end of the display module and the power end of the alarm module respectively. The output end of the acquisition module is connected with the first input end of the control module. The first output end of the control module is connected with the input end of the diesel generating set tail gas management system platform through the communication module. The output end of the diesel generating set tail gas management system platform is connected with the second input end of the control module through the communication module. The second output end of the control module is connected with the input end of the alarm module, the input end of the display module and the input end of the diesel generating set control assembly respectively. The power module includes a power switching unit, a power conversion unit, a power distribution unit and a power protection unit.

2. The exhaust gas measurement and control system for a diesel generator set according to claim 1, characterized by, The input end of the power switching unit is connected with the output end of the city power and the battery respectively. The output end of the power switching unit is connected with the input end of the power conversion unit. The output end of the power conversion unit is connected with the input end of the power distribution unit. The output end of the power distribution unit is connected with the input end of the power protection unit. The output end of the power protection unit is connected with the power end of the acquisition module, the power end of the control module, the power end of the communication module, the power end of the display module and the power end of the alarm module respectively. The acquisition module includes a temperature sensor, an exhaust pressure sensor, an oxygen sensor, two nitrogen oxide sensors and a carbon monoxide sensor. The temperature sensor is installed in the middle of the exhaust pipe of the diesel generating set or near the exhaust aftertreatment device of the diesel generating set to collect the exhaust temperature of the diesel generating set.

3. The exhaust gas measurement and control system for a diesel generator set according to claim 2, characterized by, The exhaust pressure sensor is installed at the front end of the exhaust aftertreatment device of the diesel generating set to collect the pressure change in the exhaust pipe of the diesel generating set. The oxygen sensor is installed at the engine exhaust outlet of the diesel generating set to collect the oxygen concentration in the exhaust of the diesel generating set. The two nitrogen oxide sensors are installed at the front end and the rear end of the exhaust aftertreatment device of the diesel generating set respectively to collect the nitrogen oxide in the exhaust of the diesel generating set. The carbon monoxide sensor is installed at the front end of the exhaust aftertreatment device of the diesel generating set to collect the carbon monoxide concentration in the exhaust of the diesel generating set. The carbon dioxide sensor is installed near the exhaust outlet of the diesel generating set to collect the carbon dioxide concentration in the exhaust of the diesel generating set. ​ ​ Particle sensors, two of which are respectively installed at the front end of the exhaust aftertreatment device in the diesel generating set and the rear end of the exhaust aftertreatment device in the diesel generating set, for collecting solid particles in the exhaust emitted by the diesel generating set; The power supply end of the temperature sensor, the power supply end of the exhaust pressure sensor, the power supply end of the oxygen sensor, the power supply end of the nitrogen oxide sensor, the power supply end of the carbon monoxide sensor, the power supply end of the carbon dioxide sensor, and the power supply end of the particle sensor are connected with the output end of the power protection unit; The output end of the temperature sensor, the output end of the exhaust pressure sensor, the output end of the oxygen sensor, the output end of the nitrogen oxide sensor, the output end of the carbon monoxide sensor, the output end of the carbon dioxide sensor, and the output end of the particle sensor are connected with the first input end of the control module.

4. The exhaust gas measurement and control system for a diesel generator set according to claim 3, characterized by, The control module comprises: a signal conversion unit, a signal amplification unit, a processing unit, an emission control unit, a fuel control unit, a combustion efficiency adjustment unit, and a start-stop control unit; The power supply end of the signal conversion unit, the power supply end of the signal amplification unit, the power supply end of the processing unit, the power supply end of the emission control unit, the power supply end of the fuel control unit, the power supply end of the combustion efficiency adjustment unit, and the power supply end of the start-stop control unit are connected with the output end of the power protection unit; The input end of the signal conversion unit is connected with the output end of the temperature sensor, the output end of the exhaust pressure sensor, the output end of the oxygen sensor, the output end of the nitrogen oxide sensor, the output end of the carbon monoxide sensor, the output end of the carbon dioxide sensor, and the output end of the particle sensor, respectively; The output end of the signal conversion unit is connected with the input end of the signal amplification unit; The output end of the signal amplification unit is connected with the first input end of the processing unit; The first output end of the processing unit is connected with the input end of the diesel generating set exhaust management system platform through the communication module; The output end of the diesel generating set exhaust management system platform is connected with the second input end of the processing unit through the communication module; The second output end of the processing unit is connected with the input end of the emission control unit, the input end of the fuel control unit, the input end of the combustion efficiency adjustment unit, the input end of the start-stop control unit, the input end of the alarm module, and the input end of the display module, respectively; the output end of the emission control unit is connected with the control end of the exhaust aftertreatment device in the diesel generating set; the output end of the fuel control unit and the output end of the combustion efficiency adjustment unit are connected with the input end of the fuel control system in the diesel generating set; and the output end of the start-stop control unit is connected with the control end of the generator assembly in the diesel generating set.

5. The exhaust gas measurement and control system for a diesel generator set according to claim 4, wherein The control module further comprises a data encryption unit; The input end of the data encryption unit is connected with the first output end of the processing unit; The output end of the data encryption unit is connected with the input end of the diesel generating set tail gas management system platform through the communication module.

6. The exhaust gas measurement and control system of the diesel generating set according to claim 5, characterized in that, The communication module comprises: a wireless communication unit and an Ethernet communication unit; The power supply end of the wireless communication unit and the power supply end of the Ethernet communication unit are connected with the output end of the power protection unit; When the control module sends the collected data to the diesel generating set tail gas management system platform, the wireless communication unit is used to connect the data encryption unit with the diesel generating set tail gas management system platform; When the diesel generating set tail gas management system platform sends a control instruction to the control module, the wireless communication unit is used to connect the processing unit with the diesel generating set tail gas management system platform.

7. The exhaust gas measurement and control system of the diesel generating set according to claim 6, characterized in that, The display module is a thin film transistor display screen; The power supply end of the thin film transistor display screen is connected with the output end of the power protection unit; The input end of the thin film transistor display screen is connected with the second output end of the processing unit.

8. The exhaust gas measurement and control system of the diesel generating set according to claim 7, characterized in that, The alarm module comprises a voice broadcaster and an alarm lamp; The power supply end of the voice broadcaster and the power supply end of the alarm lamp are connected with the output end of the power protection unit; The input end of the voice broadcaster and the input end of the alarm lamp are connected with the second output end of the processing unit.

9. The exhaust gas measurement and control system of the diesel generating set according to claim 8, characterized in that, Further comprising a self-diagnosis module; The power supply end of the self-diagnosis module is connected with the input end of the power protection unit; The control end of the self-diagnosis module is connected with the third output end of the processing unit; The output end of the self-diagnosis module is connected with the third input end of the processing unit.

10. The exhaust gas measurement and control system of the diesel generating set according to claim 9, characterized in that, Further comprising a storage module; The data transmission end of the storage module is connected with the data transmission end of the processing unit.

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