Energy management system

Abstract

The utility model provides an energy management system, and belongs to the technical field of energy management. The energy management system comprises a first gateway device, a second gateway device, a third gateway device, a fourth gateway device, an indicating lamp device, a PLC controller, a coal conveying metering monitoring device, a combustion chamber monitoring device, a gas flow monitoring device and a waste heat recovery monitoring device. The first gateway device is connected with the indicating lamp device, the PLC, the second gateway device, the third gateway device and the fourth gateway device. The second gateway equipment is respectively connected with the indicating lamp equipment and the coal conveying, metering and monitoring equipment; the third gateway device is connected with the indicating lamp device and the waste heat recovery monitoring device. And the fourth gateway equipment is respectively connected with the indicator lamp equipment, the combustion chamber monitoring equipment and the gas flow monitoring equipment. The problem that efficient data collection and integration are difficult to achieve in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of energy management, and particularly relates to an energy management system. BACKGROUND

[0002] With the rapid development of industry, energy consumption is increasing, and energy management is becoming increasingly critical in various industrial production, especially in energy-intensive enterprises such as coking plants. In the production process of a coking plant, multiple complex and interrelated production links are involved, and a large number of equipment and parameters need to be accurately monitored and controlled in each link. The traditional energy management method often relies on manual inspection and scattered and isolated monitoring equipment, and it is difficult to achieve efficient data collection and integration. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present disclosure provide an energy management system to solve the problem that the prior art is difficult to achieve efficient data collection and integration.

[0004] Embodiments of the present disclosure provide an energy management system, comprising:

[0005] a first gateway device, a second gateway device, a third gateway device, a fourth gateway device, an indicator light device, a PLC controller, a coal conveying metering monitoring device, a combustion chamber monitoring device, a coal gas flow monitoring device, and a waste heat recovery monitoring device;

[0006] The first gateway device is connected with the indicator light device, the PLC controller, the second gateway device, the third gateway device, and the fourth gateway device respectively; the second gateway device is connected with the indicator light device and the coal conveying metering monitoring device respectively; the third gateway device is connected with the indicator light device and the waste heat recovery monitoring device respectively; and the fourth gateway device is connected with the indicator light device, the combustion chamber monitoring device, and the coal gas flow monitoring device respectively.

[0007] The coal gas flow monitoring device is connected with the waste heat recovery monitoring device and the combustion chamber monitoring device respectively.

[0008] In an exemplary embodiment of the present disclosure, the coal conveying metering monitoring device comprises:

[0009] a photoelectric sensor and a strain gauge sensor;

[0010] The photoelectric sensor and the strain gauge sensor are both connected with the second gateway device.

[0011] The photoelectric sensor is arranged around the coal conveying belt, and the strain gauge sensor is arranged on the tensioning device of the coal conveying belt.

[0012] In an exemplary embodiment of the present disclosure, an energy management system further includes:

[0013] indicator light fault detector;

[0014] The indicator light fault detector is connected to the indicator light device and the first gateway device respectively.

[0015] In an exemplary embodiment of the present disclosure, a combustion chamber monitoring device includes:

[0016] Pressure sensors, temperature sensors, infrared gas analyzers and vortex flowmeters;

[0017] The pressure sensor, the temperature sensor, the infrared gas analyzer and the vortex flowmeter are all arranged in the combustion chamber;

[0018] The pressure sensor, the temperature sensor, the infrared gas analyzer and the vortex flowmeter are all connected to the fourth gateway device.

[0019] In an exemplary embodiment of the present disclosure, a gas flow monitoring device includes:

[0020] a first gas flow meter and a second gas flow meter;

[0021] The first gas flow meter is arranged at the outlet of the combustion chamber, and the second gas flow meter is arranged at the inlet of the waste heat recovery device;

[0022] The first gas flow meter is connected to the combustion chamber monitoring device and the PLC controller respectively, and the second gas flow meter is connected to the waste heat recovery monitoring device and the PLC controller respectively.

[0023] In an exemplary embodiment of the present disclosure, a waste heat recovery monitoring device includes:

[0024] Pipeline pressure monitoring equipment and temperature monitoring equipment;

[0025] The pipeline pressure monitoring device and the temperature monitoring device are both connected to the PLC controller;

[0026] The pipeline pressure monitoring device is arranged in the pipeline of the waste heat recovery device, and the temperature monitoring device is arranged in the waste heat recovery device.

[0027] In an exemplary embodiment of the present disclosure, an indicator light device includes:

[0028] Level 1 indicator light equipment, level 2 indicator light equipment and level 3 indicator light equipment.

[0029] In an exemplary embodiment of the present disclosure, an energy management system further includes:

[0030] Display module and alarm module;

[0031] The display module and the alarm module are both connected to the PLC controller.

[0032] The beneficial effects of an energy management system provided by the embodiment of the present disclosure are: building an efficient data transmission network through various gateway devices, realizing the comprehensive collection and sharing of multi-link monitoring data such as coal transportation, combustion, coal gas and waste heat recovery, and providing a rich and accurate data foundation for precise energy management.

[0033] With the help of the gateway, coal transportation metering and monitoring equipment can accurately monitor transportation details in real time to ensure a stable coal supply; combustion chamber monitoring equipment, waste heat recovery monitoring equipment and gas flow monitoring equipment work together to accurately monitor key parameters of the combustion process and adjust them in a timely manner, optimizing combustion efficiency and reducing energy consumption and pollution.

[0034] The PLC controller coordinates all equipment and indicator lights, achieving close collaboration between devices. If an anomaly occurs, it quickly triggers an indicator light and automatically adjusts the operating parameters of related equipment, enabling energy consumption prediction and equipment failure warnings, improving production safety, reliability, and intelligent energy management. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 is a schematic structural diagram of an energy management system provided by an embodiment of the present disclosure;

[0037] Figure 2 It is a structural diagram of another energy management system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] To help those skilled in the art better understand this solution, the following will clearly describe the technical solutions in the embodiments of this solution in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of this solution, not all of it. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of this solution.

[0039] Throughout the specification, claims, and accompanying figures of this solution, the term "including" and any variations thereof mean "including, but not limited to," and are intended to cover non-exclusive inclusions and are not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish between different objects, not to describe a specific order.

[0040] The following describes the implementation of the present disclosure in detail with reference to the accompanying drawings:

[0041] Figure 1 This is a schematic diagram of the structure of an energy management system provided by an embodiment of the present disclosure. Figure 1 , the energy management system comprises:

[0042] The first gateway device, the second gateway device, the third gateway device, the fourth gateway device, the indicator light device, the PLC controller, the coal transportation metering monitoring device, the combustion chamber monitoring device, the gas flow monitoring device and the waste heat recovery monitoring device.

[0043] The first gateway device is connected to the indicator light device, the PLC controller, the second gateway device, the third gateway device, and the fourth gateway device. The second gateway device is connected to the indicator light device and the coal transportation metering monitoring device. The third gateway device is connected to the indicator light device and the waste heat recovery monitoring device. The fourth gateway device is connected to the indicator light device, the combustion chamber monitoring device, and the gas flow monitoring device.

[0044] The gas flow monitoring equipment is connected to the waste heat recovery monitoring equipment and the combustion chamber monitoring equipment respectively.

[0045] In this embodiment, the combustion chamber monitoring device is configured to monitor the coal combustion status information in the combustion chamber. The coal delivery metering monitoring device is configured to monitor coal delivery information. The gas flow monitoring device is configured to monitor gas information in the combustion chamber. The waste heat recovery monitoring device is configured to monitor waste heat recovery information of the coal gas in the waste heat recovery device.

[0046] There are multiple indicator light devices, and the indicator light device can be an LED indicator light, a halogen lamp, etc.

[0047] In this embodiment, the coal transportation metering and monitoring equipment monitors the flow rate, weight, and other information of the coal during transportation in real time. This data is transmitted to the first gateway device via the second gateway device, and then aggregated to the PLC controller. The combustion chamber monitoring equipment uses multiple sensors to collect information about the coal combustion state, such as temperature, pressure, and gas composition within the combustion chamber. This data is transmitted to the first gateway device via the fourth gateway device, and then aggregated to the PLC controller.

[0048] The gas flow monitoring device monitors gas flow and other information at the combustion chamber outlet and the waste heat recovery unit inlet. This data is shared with the combustion chamber monitoring device and transmitted to the PLC controller. Furthermore, data from the waste heat recovery unit inlet is shared with the waste heat recovery monitoring device and transmitted to the PLC controller. The waste heat recovery monitoring device monitors gas waste heat recovery parameters such as temperature and pressure changes in the waste heat recovery unit. This data is then transmitted to the first gateway device via a third gateway device for aggregation in the PLC controller.

[0049] The gas flow rate data in the combustion chamber is closely linked to the specific conditions within the combustion chamber, and the gas flow rate at the waste heat recovery unit inlet is closely linked to the waste heat recovery process. Sharing and exchanging data enables different devices and links to work together, ensuring efficient operation of the system as a whole. Sharing gas data at the combustion chamber outlet allows the PLC controller to precisely adjust combustion conditions based on gas flow and parameters such as chamber temperature and pressure. For example, adjusting the air supply based on gas flow ensures more complete combustion, improves energy efficiency, and reduces emissions of incomplete combustion products.

[0050] The waste heat recovery inlet gas flow data is combined with the temperature, pressure, and other data within the device and then transmitted to the PLC controller. Based on this comprehensive information, the PLC adjusts the operating parameters of the waste heat recovery device. For example, the flow rate of the heat exchange medium is adjusted according to changes in gas flow and temperature, ensuring that the waste heat recovery device operates at its optimal state, thereby improving waste heat recovery efficiency and further saving energy.

[0051] Data sharing and interaction enable the PLC controller to comprehensively monitor key system parameters in real time. If an anomaly occurs in a specific process, such as a sudden change in gas flow or abnormal pressure in the waste heat recovery unit, the PLC controller can quickly detect and take action, such as adjusting operating parameters or issuing an alarm, thereby ensuring stable system operation and reducing the risk of failure and potential losses.

[0052] The PLC controller receives data from each monitoring device and analyzes and processes it. Simultaneously, the PLC controller controls multiple indicator lights based on the operating status and data transmission status of each gateway device. Different indicator light states reflect different conditions.

[0053] For example, coal transportation metering and monitoring equipment is installed along the coal conveyor line. The equipment may include belt scales and belt detection equipment. Measuring devices such as belt scales can be installed below or on the side of the coal conveyor belt to measure weight. Belt detection equipment may include belt tension detection equipment and belt deflection detection equipment. The belt tension detection equipment may be installed at the belt tensioning device, while the belt deflection detection equipment may be installed on both sides of the belt conveyor.

[0054] For example, combustion chamber monitoring equipment may include pressure sensors, temperature sensors, and gas analyzers, installed at different locations or key locations on the combustion chamber's inner wall. For example, a pressure sensor could be placed where the furnace wall bears pressure, a temperature sensor near the flame or at a temperature measurement point on the furnace wall, and a gas analyzer in the exhaust duct or at a sampling point. Each sensor and gas analyzer is connected to the fourth gateway device via high-temperature-resistant signal cables.

[0055] For example, the gas flow monitoring equipment can be set at the outlet of the combustion chamber to obtain the gas flow generated by combustion and evaluate the combustion efficiency. A thermal or differential pressure flow meter can be installed. The gas flow monitoring equipment can be set at the inlet of the waste heat recovery device to monitor the gas flow entering the waste heat recovery to optimize the recovery process. An ultrasonic or vortex flow meter can be used. The gas flow monitoring equipment is connected to the combustion chamber monitoring equipment, the waste heat recovery monitoring equipment and the PLC controller through signal lines. The waste heat recovery monitoring equipment can be installed in the internal pipeline or heat exchange component of the waste heat recovery device. The waste heat recovery monitoring equipment is connected to the third gateway device to transmit data during the waste heat recovery process.

[0056] The first, second, third, and fourth gateway devices are located in fixed locations near their connected devices, such as inside a control cabinet or in a centralized equipment area. They are interconnected via network cables or industrial buses and connected to the PLC controller to form a data transmission network. Indicator devices can be installed on the operation console or in fixed locations on the equipment site. Different indicator devices are connected to each gateway device and receive instructions from the PLC controller to display the operating status.

[0057] This embodiment builds an efficient data transmission network through various gateway devices to achieve comprehensive collection and sharing of monitoring data from multiple links such as coal transportation, combustion, gas and waste heat recovery, providing a rich and accurate data foundation for precise energy management.

[0058] With the help of the gateway, coal transportation metering and monitoring equipment can accurately monitor transportation details in real time to ensure a stable coal supply; combustion chamber monitoring equipment, waste heat recovery monitoring equipment and gas flow monitoring equipment work together to accurately monitor key parameters of the combustion process and adjust them in a timely manner, optimizing combustion efficiency and reducing energy consumption and pollution.

[0059] The PLC controller coordinates all equipment and indicator lights, achieving close collaboration between devices. If an anomaly occurs, it quickly triggers an indicator light and automatically adjusts the operating parameters of related equipment, enabling energy consumption prediction and equipment failure warnings, improving production safety, reliability, and intelligent energy management.

[0060] In one embodiment of the present disclosure, a coal transportation metering and monitoring device includes:

[0061] Optical sensor and strain gauge sensor.

[0062] Both the optical sensor and the strain gauge sensor are connected with the second gateway device.

[0063] The optical sensor is arranged around the coal conveying belt, and the strain gauge sensor is arranged on the tensioning device of the coal conveying belt.

[0064] In the embodiment, the optical sensor is configured to monitor the deviation information of the coal conveying belt, and the strain gauge sensor is configured to monitor the tension information of the coal conveying belt.

[0065] For example, for a vertical weight type tensioning device, the strain gauge sensor can be installed at the suspension connection of the weight, and the tension of the belt can be indirectly reflected by measuring the tension of the weight. For a screw type tensioning device, the strain gauge sensor can be installed at the connection between the screw and the roller, and the change of the tension of the screw is detected to monitor the tension of the belt.

[0066] For example, the optical sensor can be installed on both sides of the belt. The optical sensor detects whether the edge of the belt blocks the light by emitting and receiving light, so as to judge whether the belt deviates. The optical sensor can be installed on the frame of the belt conveyor at a certain safety distance from the edge of the belt, so as to avoid being touched by the belt during normal operation, and to ensure that the deviation of the belt can be detected in time when the deviation of the belt is small.

[0067] At the positions such as the curve, the material dropping point and the lifting section of the belt conveyor, the belt is more likely to deviate. The optical sensor and other deviation detection devices are installed at these key positions, so as to monitor the state of the belt under complex operating conditions. For example, at the material dropping point, the impact of coal may cause the belt to deviate, and by installing the optical sensor on both sides of the material dropping point, the deviation of the belt can be found and corrected in time, so as to prevent coal from spilling and ensure the accuracy and safety of coal conveying.

[0068] This embodiment realizes the accurate collection and unified integration of data from the entire process through the layout and data collection of various monitoring devices in each link of coal transportation, combustion, gas and waste heat recovery, and aggregates them to the PLC controller with the help of gateway devices, providing a comprehensive and accurate data basis for energy management decisions. Based on the integrated data, the PLC controller can adjust the coal transportation speed, combustion parameters, gas flow distribution and the operating status of the waste heat recovery device in real time, thereby improving energy utilization efficiency and reducing energy waste. With the help of indicator light devices to intuitively reflect the status of each part of the system, the PLC controller can promptly detect hidden faults and issue warnings based on the status of the gateway device and data anomalies, facilitate rapid location and resolution of problems, ensure safe and stable operation of the system, reduce maintenance costs and downtime risks, and improve overall production efficiency and the level of intelligent energy management.

[0069] like Figure 2 As shown, in one embodiment of the present disclosure, an energy management system further includes:

[0070] Indicator lamp fault detector.

[0071] The indicator light fault detector is connected to the first gateway device.

[0072] In this embodiment, the indicator light fault detector periodically sends detection signals, such as pulse signals or specific query commands, to multiple indicator light devices. The indicator light devices respond after receiving the signals. For example, a properly functioning indicator light will feedback corresponding current, voltage, or light intensity change signals. The fault detector analyzes these feedback signals. If the signal does not fall within a preset normal range, it determines that the indicator light has a fault, such as a broken bulb, open circuit, or short circuit. The fault information is then transmitted to the PLC controller via a connection to the first gateway device, so that maintenance personnel can be notified and addressed promptly.

[0073] For example, the indicator light fault detector can be located near an area where indicator light devices are concentrated or in a control room to facilitate wiring and testing operations. It is connected to each indicator light device via dedicated detection cables, which transmit detection signals and receive feedback signals. The indicator light fault detector is connected to the first gateway device via a standard network communication cable, such as an Ethernet cable, to ensure that fault information is quickly and reliably transmitted to the PLC controller, allowing the entire energy management system to promptly monitor the indicator light status and take appropriate countermeasures.

[0074] The indicator light fault detector in this embodiment effectively ensures the proper functioning of the energy management system's indicators. It can promptly and accurately detect indicator light failures and quickly transmit fault information to the PLC controller, facilitating rapid location and repair. This reduces system status misjudgments caused by indicator light failures, improves system reliability and safety, and ensures accurate and efficient energy management.

[0075] In one embodiment of the present disclosure, a combustion chamber monitoring device includes:

[0076] Pressure sensor, temperature sensor, infrared gas analyzer and vortex flowmeter.

[0077] The pressure sensor, temperature sensor, infrared gas analyzer and vortex flowmeter are all arranged in the combustion chamber.

[0078] The pressure sensor, temperature sensor, infrared gas analyzer and vortex flowmeter are all connected to the fourth gateway device.

[0079] In this embodiment, the pressure sensor monitors the pressure changes in the combustion chamber in real time and converts them into electrical signals based on the principle of pressure and electrical signal conversion. The temperature sensor uses the thermoelectric effect or thermal resistance characteristics to convert the temperature information in the combustion chamber into electrical signals. The infrared gas analyzer uses specific infrared light to interact with the gas components in the combustion chamber, and analyzes the gas concentration based on the degree of absorption, such as detecting CO, CO2, etc. The vortex flowmeter measures the flow of air or combustion gas based on the relationship between the vortex frequency and flow rate generated by the fluid flowing through the vortex generator. The data collected by these sensors are converted into electrical signals and transmitted to the fourth gateway device through the signal line. The fourth gateway device performs preliminary processing and protocol conversion on the data, and then transmits the data to the PLC controller for comprehensive analysis and control decision-making.

[0080] Exemplarily, pressure sensors are installed at places where the furnace wall is subject to obvious pressure changes or near key air flow channels to accurately monitor pressure fluctuations. Temperature sensors are located close to the flame core area and different temperature measuring points on the furnace wall to fully reflect the combustion temperature distribution. Infrared gas analyzers are installed in exhaust channels and gas sampling points to ensure that representative gas samples can be collected. Vortex flowmeters are installed in the air inlet pipe or the combustion gas outlet pipe to measure the corresponding flow rate. The combustion chamber monitoring equipment is connected to the fourth gateway device through high-temperature resistant, anti-interference signal lines. The fourth gateway device can be set in a control cabinet near the combustion chamber to exchange data with other devices through an industrial bus or network line.

[0081] In this embodiment, precise pressure and temperature monitoring helps optimize the combustion process and improve energy efficiency. Infrared gas analysis monitors combustion quality and reduces harmful gas emissions. A vortex flowmeter precisely measures gas flow, ensuring the proper fuel-air ratio. Comprehensive and real-time data collection and transmission enables precise control by the PLC controller, enhancing system safety and stability while reducing energy consumption and operational costs.

[0082] like Figure 2 As shown, in one embodiment of the present disclosure, a gas flow monitoring device includes:

[0083] A first gas flow meter and a second gas flow meter.

[0084] The first gas flow meter is arranged at the outlet of the combustion chamber, and the second gas flow meter is arranged at the inlet of the waste heat recovery device.

[0085] The first gas flow meter is connected to the combustion chamber monitoring device and the PLC controller respectively, and the second gas flow meter is connected to the waste heat recovery monitoring device and the PLC controller respectively.

[0086] In this embodiment, the first gas flow meter is configured to monitor first gas flow information of the combustion chamber, and the second gas flow meter is configured to monitor second gas flow information of the waste heat recovery device.

[0087] In this embodiment, the first gas flowmeter can be a vortex flowmeter, a differential pressure flowmeter, etc. The first gas flowmeter is located at the outlet of the combustion chamber, and based on its specific measurement principle, it converts the gas flow generated by combustion into first gas flow information in the form of an electrical signal. The second gas flowmeter can be an ultrasonic flowmeter, a differential pressure flowmeter, a vortex flowmeter, etc. The second gas flowmeter is arranged at the inlet of the waste heat recovery device, and based on its own measurement principle, it converts the gas flow entering the waste heat recovery into second gas flow information in the form of an electrical signal. These signals are transmitted to the corresponding associated equipment respectively. The first gas flowmeter transmits the data to the combustion chamber monitoring equipment and the PLC controller, which is convenient for analyzing the combustion efficiency and the overall energy utilization; the second gas flowmeter transmits the data to the waste heat recovery monitoring equipment and the PLC controller, which is conducive to optimizing the parameter settings of the waste heat recovery process to improve the waste heat recovery efficiency.

[0088] For example, the first gas flowmeter is located on the gas pipeline at the combustion chamber outlet. The gas here has just undergone the combustion process, and this flowmeter can accurately measure the gas flow generated by combustion, which is critical for evaluating combustion efficiency and determining whether the coal is burning sufficiently. The first gas flowmeter is connected to the combustion chamber monitoring equipment so that the two can work together and share data. For example, the first gas flowmeter can be used to comprehensively analyze the combustion status by combining information such as temperature and pressure within the combustion chamber. The first gas flowmeter is also connected to the PLC controller, transmitting flow data to it, allowing the PLC to optimize the combustion process based on this data, such as adjusting the air supply and coal delivery rate.

[0089] The second gas flowmeter is installed on the gas pipeline at the entrance of the waste heat recovery device. Its function is to monitor the gas flow entering the waste heat recovery link, which helps to reasonably adjust the operating parameters of the waste heat recovery device, such as heat exchange area, medium flow, etc., according to the flow rate, so as to achieve the best waste heat recovery effect. The second gas flowmeter is connected to the waste heat recovery monitoring equipment, and the two cooperate with each other to ensure the efficient recovery of waste heat; the second gas flowmeter is connected to the PLC controller, so that the PLC can coordinate and control the entire energy management system according to the gas flow data and other monitoring data during the waste heat recovery process to ensure that energy is fully utilized. Both flowmeters are connected through high-temperature resistant and anti-interference signal lines to ensure the stability and accuracy of data transmission.

[0090] This embodiment, by installing gas flow meters at the combustion chamber outlet and the waste heat recovery device inlet, accurately determines coal combustion efficiency, providing key data for combustion process optimization and reducing energy waste. Recovery parameters can be rationally adjusted based on gas flow, improving waste heat recovery efficiency and reducing energy consumption. These two elements work together to enable the PLC to fully control energy flow, ensuring stable and efficient system operation, enhancing the scientific and precise nature of energy management, and helping enterprises achieve energy conservation, emission reduction, and cost control.

[0091] In one embodiment of the present disclosure, a waste heat recovery monitoring device includes:

[0092] Pipeline pressure monitoring equipment and temperature monitoring equipment.

[0093] The pipeline pressure monitoring equipment and temperature monitoring equipment are both connected to the PLC controller.

[0094] The pipeline pressure monitoring equipment is arranged in the pipeline of the waste heat recovery device, and the temperature monitoring equipment is arranged in the waste heat recovery device.

[0095] In this embodiment, the temperature monitoring device is configured to monitor the temperature information in the waste heat recovery device. The pipeline pressure monitoring device is configured to monitor the pipeline pressure information of the waste heat recovery device. The temperature monitoring device may include a temperature sensor that works on the principle of a thermocouple or a thermistor. The pipeline pressure monitoring device may include a pressure sensor, such as a strain gauge pressure sensor. When the pipeline pressure acts on the elastic element, the strain gauge deforms, causing the resistance to change, which is converted into an electrical signal through the circuit. The pipeline pressure monitoring device and the temperature monitoring device convert the collected temperature and pressure information into electrical signals and transmit them to the PLC controller. The PLC analyzes the operating status of the waste heat recovery device based on this and adjusts the relevant parameters to ensure the waste heat recovery efficiency and the safety and stability of the system.

[0096] For example, temperature monitoring equipment is distributed in key locations such as the heat exchange core area and heat medium inlet and outlet of the waste heat recovery unit to fully sense temperature changes. Pipeline pressure monitoring equipment is installed in different locations such as the main pipeline and branch pipelines of the waste heat recovery unit, especially at locations where pressure fluctuations exceed the preset pressure range or at key control points. Both temperature monitoring equipment and pipeline pressure monitoring equipment are connected to the PLC controller via shielded signal cables. The signal cables must be resistant to high temperatures and have anti-interference properties to ensure stable and accurate signal transmission, allowing the PLC to obtain data in a timely manner for processing and control decisions.

[0097] This embodiment's precise temperature and pipeline pressure monitoring enables the PLC controller to precisely control the waste heat recovery process, ensuring efficient and stable operation of the device, improving waste heat utilization, and reducing energy loss. It also effectively prevents abnormal conditions such as overtemperature and overpressure, enhancing system safety and reducing equipment damage and repair costs. Comprehensive and reliable data collection helps optimize the overall energy management strategy and promotes the rational allocation and efficient use of energy.

[0098] In one embodiment of the present disclosure, an indicator light device includes:

[0099] Level 1 indicator light equipment, level 2 indicator light equipment and level 3 indicator light equipment.

[0100] In this embodiment, the first-level indicator light can be a standard LED, driven by circuitry within the gateway, and turned on or off or flashing based on gateway status signals. The second-level indicator light can be a dual-color LED, which changes color or flashes according to a specific pattern after a microprocessor processes aggregated gateway signals. The third-level indicator light can be a high-intensity, integrated sound and light alarm, controlled by a PLC. Upon receiving a critical gateway fault signal via a dedicated line, it activates a high-intensity light and high-decibel alarm.

[0101] In this embodiment, the first-level indicator light device is used to indicate partial abnormalities in data transmission or general failures of the gateway device. When occasional packet loss occurs in data transmission but can be recovered by itself, or when the gateway device has a short-term performance fluctuation, the first-level indicator light is always on or flashing, alerting maintenance personnel to pay attention but no emergency treatment is required. The second-level indicator light device works when the data transmission error rate is high or some functions of the gateway device are limited, such as continuous packet loss, abnormal communication on a certain port of the gateway, etc. The indicator light flashes at a specific frequency or changes color, indicating that further inspection and troubleshooting are required. The third-level indicator light device lights up when there is a serious data transmission interruption or a complete failure of the gateway device, such as a network line failure, a gateway freeze, etc., usually accompanied by a strong sound and light alarm, requiring immediate repair to restore normal communication of the system.

[0102] For example, a primary indicator light can be installed on the panel of a gateway device or on a small control box near the gateway device, allowing for quick identification during inspections. The primary indicator light connects to the corresponding gateway device via a short-distance data cable, and the gateway device transmits its status information to the indicator light for display.

[0103] Secondary indicator devices can be installed in a fixed location within the centralized control cabinet, such as the central area, to facilitate timely identification by maintenance personnel during routine inspections or when addressing other issues. These devices connect to each gateway device via an internal bus, receiving aggregated status signals from the gateway devices and displaying them accordingly.

[0104] The three-level indicator light device can be installed in a fixed location on the main control console of the monitoring room, such as the top or front center. Because it is used to alarm serious faults, operators must be notified immediately. It is connected to each gateway device via a network cable or dedicated alarm line. When a serious fault occurs in a gateway device, the signal is quickly transmitted to the three-level indicator light device, triggering a strong audible and visual alarm.

[0105] This embodiment provides clear, graded indications of the data transmission status of gateway devices, allowing maintenance personnel to quickly identify the severity of gateway and data transmission issues, reducing troubleshooting time and effort. Level 1 indicators can promptly identify potential hazards during routine inspections, while level 2 indicators help pinpoint fault points. Level 3 indicators ensure rapid operator response in emergencies, preventing system outages caused by communication failures. This significantly improves system operation and maintenance efficiency and stability, ensuring the continuous and efficient advancement of energy management.

[0106] like Figure 2 As shown, in one embodiment of the present disclosure, an energy management system further includes:

[0107] Display module and alarm module.

[0108] The display module and the alarm module are both connected to the PLC controller.

[0109] In this embodiment, the display module receives data from the PLC controller, such as coal delivery volume, combustion chamber temperature and pressure, gas flow rate, and waste heat recovery parameters. It displays this data in the form of intuitive charts, numbers, or status indicators, allowing operators to understand the operational status of each link in the energy management system in real time. The alarm module, based on thresholds and logic defined by the PLC, sends a signal to the alarm module when monitoring data exceeds normal ranges or when a system malfunction occurs, such as a gas leak (detected by relevant monitoring equipment and determined by the PLC) or equipment overtemperature or overpressure. The alarm module triggers the audible and visual alarm device, emitting a strong sound and light signal, prompting operators to take timely countermeasures.

[0110] For example, the display module can be installed on the operating table in the control room, using a large-screen liquid crystal display or a touch screen, to facilitate the operator to observe and operate at close range. It is connected with the PLC controller through the industrial Ethernet or serial communication line to ensure the high speed and stability of data transmission. The sound and light alarm device of the alarm module can be set on the wall or ceiling of the control room, so that the alarm signal can be clearly heard and seen in the whole control room. The alarm module is connected with the PLC controller through the control cable, and when the PLC sends an alarm instruction, the alarm device can be activated quickly, and it can also be linked with other related equipment such as indicator light equipment to enhance the alarm effect.

[0111] The display module in the embodiment intuitively presents multiple types of data, which helps the operator to accurately control the system state, so as to timely adjust and optimize. The alarm module quickly alarms with sound and light when abnormal, and links related equipment, effectively avoids the deterioration of the accident, ensures the safe and stable operation of the system, and improves the energy management efficiency and reliability.

[0112] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An energy management system, characterized in that: include: A first gateway device, a second gateway device, a third gateway device, a fourth gateway device, an indicator light device, a PLC controller, a coal transportation metering monitoring device, a combustion chamber monitoring device, a gas flow monitoring device, and a waste heat recovery monitoring device; The first gateway device is respectively connected to the indicator light device, the PLC controller, the second gateway device, the third gateway device, and the fourth gateway device; the second gateway device is respectively connected to the indicator light device and the coal transportation metering monitoring device; the third gateway device is respectively connected to the indicator light device and the waste heat recovery monitoring device; the fourth gateway device is respectively connected to the indicator light device, the combustion chamber monitoring device, and the gas flow monitoring device; The gas flow monitoring device is connected to the waste heat recovery monitoring device and the combustion chamber monitoring device respectively.

2. An energy management system according to claim 1, characterized in that: The coal transportation metering and monitoring equipment includes: Photoelectric sensors and strain gauge sensors; The photoelectric sensor and the strain gauge sensor are both connected to the second gateway device; The photoelectric sensor is arranged around the coal conveyor belt, and the strain gauge sensor is arranged on the tensioning device of the coal conveyor belt.

3. An energy management system according to claim 1, characterized in that: Also includes: indicator light fault detector; The indicator light fault detector is connected to the first gateway device.

4. An energy management system according to claim 1, characterized in that: The combustion chamber monitoring equipment comprises: Pressure sensors, temperature sensors, infrared gas analyzers and vortex flowmeters; The pressure sensor, the temperature sensor, the infrared gas analyzer and the vortex flowmeter are all arranged in the combustion chamber; The pressure sensor, the temperature sensor, the infrared gas analyzer and the vortex flowmeter are all connected to the fourth gateway device.

5. An energy management system according to claim 1, characterized in that: The gas flow monitoring device comprises: a first gas flow meter and a second gas flow meter; The first gas flow meter is arranged at the outlet of the combustion chamber, and the second gas flow meter is arranged at the inlet of the waste heat recovery device; The first gas flow meter is connected to the combustion chamber monitoring device and the PLC controller respectively, and the second gas flow meter is connected to the waste heat recovery monitoring device and the PLC controller respectively.

6. An energy management system according to claim 1, characterized in that: The waste heat recovery monitoring equipment includes: Pipeline pressure monitoring equipment and temperature monitoring equipment; The pipeline pressure monitoring device and the temperature monitoring device are both connected to the PLC controller; The pipeline pressure monitoring device is arranged in the pipeline of the waste heat recovery device, and the temperature monitoring device is arranged in the waste heat recovery device.

7. An energy management system according to claim 1, characterized in that: Indicator light equipment, including: Level 1 indicator light equipment, level 2 indicator light equipment and level 3 indicator light equipment.

8. An energy management system according to claim 1, characterized in that: Also includes: Display module and alarm module; The display module and the alarm module are both connected to the PLC controller.

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