Gas-fired boiler waste heat recovery and energy collaboration system

Abstract

The invention relates to the technical field of gas-fired boiler equipment, in particular to a gas-fired boiler waste heat recovery and energy collaboration system. According to the gas-fired boiler waste heat recovery and energy collaboration system, the energy collaboration module is used for purifying an energy medium and recovering waste heat, preheating boiler inlet water or other media needing to be heated, improving the energy utilization efficiency, coordinating solar energy and geothermal energy access, converting the solar energy and the geothermal energy into heat energy and cooperatively working with a boiler system; the dependence on natural gas is reduced; operation parameters of the boiler system are monitored in real time through the intelligent regulation and control system, a regulation and control instruction and a coordination instruction are generated through the central processing unit according to a preset strategy, automatic control over the boiler system and the energy coordination module is achieved, and operation efficiency and stability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas boiler equipment, in particular to a gas boiler waste heat recovery and energy coordination system. BACKGROUND

[0002] Gas boilers are widely used in modern industrial and domestic heating fields. Their main function is to produce high-temperature steam or hot water by burning natural gas to provide heat energy for production processes or heating systems. However, traditional gas boiler systems have the following problems during operation:

[0003] Condensate discharge problem: A large amount of condensate is produced during boiler operation, which contains a high amount of waste heat. If it is directly discharged, it not only wastes energy but also has adverse effects on the environment.

[0004] Single energy utilization: Traditional gas boilers mainly rely on natural gas as energy, with high dependence on single energy and lack of utilization of renewable energy such as solar energy and geothermal energy, which is not conducive to energy saving, emission reduction and sustainable development.

[0005] Low degree of automation: The operation and control of traditional boiler systems rely on manual operation, lack real-time monitoring and automatic control, resulting in low operating efficiency, high energy consumption, and difficulty in achieving fine management. SUMMARY

[0006] Therefore, the technical problem to be solved by the present application is to overcome the problems of energy waste, low energy utilization rate and poor operation stability in the prior art.

[0007] To solve the above technical problems, the present application provides a gas boiler waste heat recovery and energy coordination system, comprising:

[0008] An intelligent control module is connected to the boiler system for real-time monitoring of the operating data of the boiler system and transmitting the data to the central processor module. After receiving the feedback control instructions from the central processor module, the equipment in the boiler system is adjusted and controlled.

[0009] A central processor module is connected to the boiler system and the intelligent control module for analyzing and processing the operating data from the intelligent control module, generating control instructions and feeding them back to the intelligent control module, and generating coordination instructions according to the preset control strategy and feeding them back to the energy coordination module.

[0010] An energy coordination module is connected to the boiler system and the central processor module for coordinating the connection of geothermal energy and solar energy to the boiler system according to the coordination instructions from the central processor module, and purifying, adjusting heat and recovering waste heat of energy medium.

[0011] Preferably, the boiler system comprises:

[0012] a water quality processing sub-module, comprising:

[0013] a softened water tank for storing the preliminarily processed softened water;

[0014] an iron ion removing device connected to the softened water tank for removing iron ions in the softened water;

[0015] a water softener connected to the iron ion removing device for reducing the hardness of the softened water and reducing calcium and magnesium ions in the water;

[0016] a heat energy generation and exchange sub-module, comprising:

[0017] a boiler body connected to the water softener for generating heat energy by burning natural gas and heating the softened water;

[0018] a heat exchanger connected to the boiler body and an external heating system for receiving the heat generated by the boiler body and transferring the heat to a medium requiring heating to provide heat energy for the external heating system.

[0019] Preferably, the energy coordination module comprises:

[0020] a solar energy access sub-module connected to the central processor module for collecting solar energy, converting it into heat energy available for the boiler system according to the coordination instructions of the central processor module, and storing the excess heat energy.

[0021] a geothermal energy access sub-module connected to the central processor module for extracting geothermal energy and converting it into heat energy available for the boiler system according to the coordination instructions of the central processor module;

[0022] a filter connected to the boiler system for filtering the condensed water generated by the boiler system;

[0023] a heat exchanger connected to the solar energy access sub-module, the geothermal energy access sub-module, the filter, and the boiler system for transferring the heat energy converted from solar energy and geothermal energy available for the boiler system and the excess heat in the condensed water to the boiler system.

[0024] Preferably, the solar energy access sub-module comprises a solar heat collector, and the geothermal energy access sub-module comprises a ground source heat pump system.

[0025] Preferably, the energy coordination module further comprises:

[0026] an emergency energy sub-module connected to the central processor module and the boiler system for providing emergency power support for the boiler system according to the coordination instructions of the central processor module when the main energy supply fails or is insufficient.

[0027] Preferably, the emergency power supply sub-module is an emergency generator.

[0028] Preferably, the intelligent regulation module comprises:

[0029] The data acquisition sub-module is connected with the boiler system and the central processor module, and is used for monitoring the operation data of the boiler system in real time, and transmitting the operation data to the central processor module after preliminary processing.

[0030] The control execution sub-module is connected with the central processor module, and is used for receiving the regulation instruction fed back by the central processor module, and adjusting and controlling the equipment in the boiler system.

[0031] Preferably, the data acquisition sub-module comprises a temperature sensor, a pressure sensor and a flow sensor.

[0032] Preferably, the central processor module further comprises:

[0033] The data receiving and processing sub-module is connected with the intelligent regulation module, and is used for receiving the operation data from the intelligent regulation module, and performing data analysis and processing to evaluate the operation state of the boiler system.

[0034] The decision and instruction generation sub-module is connected with the data receiving and processing sub-module, the intelligent regulation module and the energy coordination module, and is used for generating the regulation instruction according to the data analysis result, generating the coordination instruction according to the preset control strategy based on the data analysis result, and sending the regulation instruction to the intelligent regulation module and the coordination instruction to the energy coordination module.

[0035] Preferably, the central processor module further comprises:

[0036] The data storage and analysis sub-module is connected with the boiler system, and is used for storing the historical operation data of the boiler system, and performing deep analysis on the stored data to optimize the control strategy.

[0037] The remote communication sub-module is connected with the data storage and analysis sub-module and the external operation and maintenance platform, and is used for supporting the data transmission and remote monitoring of the boiler system and the external operation and maintenance platform.

[0038] The above technical scheme of the present application has the following advantages compared with the prior art:

[0039] The gas boiler waste heat recovery and energy collaborative system provided by the application, through the energy collaborative module purifies energy medium and waste heat recovery, is used for preheating boiler inlet water or other media needing heating, improves energy utilization efficiency, and coordinates solar energy and geothermal energy access, converts them into heat energy, and works collaboratively with the boiler system, reduces dependence on natural gas; through the intelligent control system, the operation parameters of the boiler system are monitored in real time, the central processor generates control instructions and collaborative instructions according to a preset strategy, and the automatic control of the boiler system and the energy collaborative module is realized, and the operation efficiency and stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments of the application and in conjunction with the drawings, in which:

[0041] Figure 1 is a structural diagram of a gas boiler waste heat recovery and energy collaborative system provided by the application;

[0042] Figure 2 is a structural diagram of a gas boiler waste heat recovery and energy collaborative system provided by an embodiment of the application. DETAILED DESCRIPTION

[0043] The core of the application is to provide a gas boiler waste heat recovery and energy collaborative system, which effectively reduces energy waste, improves energy utilization rate and operation stability.

[0044] In order to make the person skilled in the art better understand the application scheme, the application will be further described in detail below in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the application.

[0045] Please refer to Figure 1 , Figure 1 is a structural diagram of a gas boiler waste heat recovery and energy collaborative system provided by the application; the specific operation steps are as follows:

[0046] The intelligent control module is connected with the boiler system, is used for monitoring the operation data of the boiler system in real time, and transmits the operation data to the central processor module; after receiving the control instructions fed back by the central processor module, the equipment in the boiler system is adjusted and controlled;

[0047] The central processor module is connected with the boiler system and the intelligent control module, and is used for analyzing and processing operation data from the intelligent control module, generating control instructions and feeding back to the intelligent control module, and generating coordination instructions according to a preset control strategy and feeding back to the energy coordination module;

[0048] The energy coordination module is connected with the boiler system and the central processor module, and is used for coordinating the access of geothermal energy and solar energy to the boiler system according to the coordination instructions of the central processor module, and purifying, heat adjusting and waste heat recycling the energy medium.

[0049] The working process is as follows:

[0050] System startup and initialization: the central processor module, the intelligent control module and the energy coordination module are initialized to prepare to receive data and execute instructions.

[0051] Boiler system operation: the boiler body generates heat by burning natural gas, and transmits the heat to the medium that needs to be heated.

[0052] Intelligent control and data processing: the intelligent control module monitors the operation parameters of the boiler system in real time, the central processor module analyzes the data and generates control instructions and coordination instructions, and feeds back to the intelligent control module and the energy coordination module.

[0053] Energy coordination supply: the energy coordination module accesses solar energy and geothermal energy to transmit heat to the boiler system according to the coordination instructions. After purifying and recycling waste heat, the energy medium is reused to the boiler system.

[0054] Based on the above embodiment, the boiler system module is the core of the whole system, which is responsible for generating heat and providing it to the external system. The module generates high-temperature steam or hot water by burning natural gas, and transmits the heat to the medium that needs to be heated through the heat exchanger. At the same time, the boiler system module also includes water quality treatment function to ensure that the water quality meets the requirements of boiler operation, preventing equipment from scaling and corrosion. In some embodiments, the boiler system includes:

[0055] The water quality treatment sub-module includes:

[0056] The softening water tank is used to store the softening water after preliminary treatment, and provides water source for the boiler system;

[0057] The iron ion removal device is connected with the softening water tank, and is used to remove iron ions in the softening water to prevent corrosion of the equipment caused by iron ions;

[0058] The water softener is connected with the iron ion removal device, and is used to reduce the hardness of the softening water, reduce the calcium and magnesium ions in the water, and avoid scaling in the boiler;

[0059] The heat generation and exchange sub-module includes:

[0060] a boiler body connected with the water softener, for heating softened water to generate high-temperature steam or hot water by burning natural gas;

[0061] a heat exchanger connected with the boiler body and an external heating system, for receiving heat generated by the boiler body and transferring the heat to a medium (such as water for heating or water for production process) that needs to be heated, to provide heat energy for the external heating system.

[0062] Based on the above embodiments, the energy coordination module is used to coordinate the access of geothermal energy and solar energy according to the coordination instructions of the central processor module, and to purify the energy medium, adjust the heat, and recover the waste heat, thereby improving the energy utilization efficiency of the system. In some embodiments, the energy coordination module comprises:

[0063] a solar energy access submodule connected with the central processor module, for collecting solar energy and converting it into heat energy available for the boiler system according to the coordination instructions of the central processor module, and storing the excess heat energy.

[0064] a geothermal energy access submodule connected with the central processor module, for extracting geothermal energy and converting it into heat energy available for the boiler system according to the coordination instructions of the central processor module;

[0065] a filter connected with the boiler system, for filtering the condensate water generated by the boiler system to remove impurities in the condensate water and ensure the cleanliness of the condensate water;

[0066] a heat exchanger connected with the solar energy access submodule, the geothermal energy access submodule, the filter, and the boiler system, for transmitting the heat energy converted from solar energy and geothermal energy available for the boiler system and the waste heat in the condensate water to the boiler system, so as to be used for preheating boiler water or other media that need to be heated.

[0067] Based on the above embodiments, in some embodiments, the solar energy access submodule comprises:

[0068] a solar energy collector for collecting solar energy and converting it into heat energy.

[0069] a solar energy storage system connected with the solar energy collector, for storing the excess heat energy collected by the solar energy collector.

[0070] In some embodiments, the geothermal energy access submodule comprises a ground source heat pump system for extracting geothermal energy and converting it into heat energy available for the boiler system.

[0071] Based on the above embodiments, in some embodiments, the energy coordination module further comprises:

[0072] An emergency power supply sub-module is connected with the central processor module and the boiler system, and is configured to provide emergency power support for the boiler system according to the cooperative instruction of the central processor module when the main power supply fails or is insufficient.

[0073] In some embodiments, the emergency power supply sub-module can be an emergency generator.

[0074] Based on the above embodiments, the intelligent control module is configured to monitor the operation parameter data of the boiler system in real time and transmit the data to the central processor module. After receiving the feedback control instruction of the central processor module, the equipment in the boiler system is adjusted to ensure the stable operation of the system. In some embodiments, the intelligent control module comprises:

[0075] A data acquisition sub-module is connected with the boiler system and the central processor module, and is configured to monitor the operation data of the boiler system in real time and transmit the data to the central processor module after preliminary processing;

[0076] A control execution sub-module is connected with the central processor module, and is configured to receive the feedback control instruction of the central processor module and adjust and control the equipment (such as valves, pumps, burners, etc.) in the boiler system.

[0077] In some embodiments, the data acquisition sub-module comprises temperature sensors, pressure sensors and flow sensors.

[0078] Based on the above embodiments, the central processor module is configured to analyze and process the operation parameter data from the intelligent control module, generate a control instruction feedback to the intelligent control module, and issue a cooperative instruction to the energy coordination module according to a preset strategy to realize the intelligent operation of the system. In some embodiments, the central processor module further comprises:

[0079] A data receiving and processing sub-module is connected with the intelligent control module, and is configured to receive the operation data from the intelligent control module and perform data analysis and processing to evaluate the operation state of the boiler system.

[0080] A decision and instruction generation sub-module is connected with the data receiving and processing sub-module, the intelligent control module and the energy coordination module, and is configured to generate a control instruction according to the data analysis result, generate a cooperative instruction based on the data analysis result according to a preset control strategy, and send the control instruction to the intelligent control module and the cooperative instruction to the energy coordination module.

[0081] In some embodiments, the data receiving and processing sub-module comprises:

[0082] A data receiving unit is configured to receive data from the intelligent control module.

[0083] The data processing unit, connected to the data receiving unit, is used to analyze and process the collected data and evaluate the system's operating status.

[0084] In some embodiments, the decision and instruction generation submodule includes:

[0085] The decision-making unit, connected to the data processing unit, is used to generate control instructions based on the data processing results and to generate coordinated instructions based on the data analysis results and preset control strategies.

[0086] The instruction sending unit, connected to the decision-making unit, is used to send control instructions to the intelligent control module and coordination instructions to the energy coordination module.

[0087] Based on the above embodiments, in some embodiments, the central processing unit module further includes:

[0088] The data storage and analysis submodule is connected to the boiler system and is used to store historical operating data of the boiler system and perform in-depth analysis on the stored data to optimize control strategies.

[0089] The remote communication submodule connects to the data storage and analysis submodule and the external operation and maintenance platform to support data transmission and remote monitoring between the boiler system and the external operation and maintenance platform.

[0090] In some embodiments, the data storage and analysis submodule includes:

[0091] Storage units are used to store system operation data for subsequent analysis.

[0092] The data analysis unit, connected to the storage unit, is used to perform in-depth analysis of the stored data and optimize control strategies.

[0093] like Figure 2 As shown, Figure 2 This is a structural diagram of a waste heat recovery and energy synergy system for a gas-fired boiler, provided in one embodiment of the present invention. The system's workflow is as follows:

[0094] 1. System startup and initialization

[0095] Central Processing Unit Module:

[0096] When the system starts, the data receiving unit and instruction sending unit of the central processing unit module are initialized, ready to receive data and send instructions.

[0097] The storage unit in the data storage and analysis submodule loads historical running data to provide a reference for system startup.

[0098] The remote communication unit of the remote communication submodule establishes a connection with the external operation and maintenance platform and is ready to receive remote monitoring commands.

[0099] Intelligent control module:

[0100] The data acquisition unit of the data acquisition submodule begins to monitor the sensor data (temperature, pressure, flow, etc.) of the boiler system.

[0101] The control terminal of the control execution submodule is initialized, preparing to receive the control instructions from the central processor.

[0102] Energy coordination module:

[0103] The monitoring equipment of the solar energy access submodule and the geothermal energy access submodule begins to work, monitoring the availability of solar energy and geothermal energy in real time.

[0104] The emergency generator of the emergency energy submodule is on standby, ready to start when the main energy supply is insufficient.

[0105] 2. Boiler system operation

[0106] Water quality treatment submodule:

[0107] The softened water tank stores the softened water after preliminary treatment.

[0108] The softened water passes through the iron ion remover to remove iron ions, preventing corrosion of equipment caused by iron ions.

[0109] The water after iron removal treatment enters the water softener, further reducing the hardness of the water, reducing calcium, magnesium ions and other ions in the water, and avoiding scaling in the boiler.

[0110] The treated softened water is supplied to the boiler body.

[0111] Heat energy generation and exchange submodule:

[0112] The boiler body generates heat energy by burning natural gas, heating the softened water, and producing high-temperature steam or hot water.

[0113] The heat exchanger receives the heat generated by the boiler body, realizes heat exchange, and transfers heat to the medium that needs to be heated (such as heating water, production process water, etc.), providing heat energy for external systems.

[0114] 3. Intelligent control and data processing

[0115] Data acquisition and transmission:

[0116] The data acquisition submodule of the intelligent control module monitors the operating parameters (temperature, pressure, flow, etc.) of the boiler system in real time and transmits the data to the data receiving unit of the central processor module.

[0117] Data analysis and decision-making:

[0118] The data processing unit of the central processor module analyzes and processes the collected data, evaluating the system's operational status.

[0119] The decision-making unit generates control instructions based on the data processing results, and system instructions based on the data processing results according to the preset strategy, and sends them to the intelligent control module and the energy coordination module through the instruction sending unit.

[0120] Control execution:

[0121] The control terminal of the intelligent control module adjusts and controls the equipment in the boiler system (such as valves, pumps, burners, etc.) according to the control instructions of the central processor.

[0122] The control terminal of the energy coordination module adjusts and controls the energy input and conversion equipment (such as solar collectors, ground source heat pumps, filters, etc.) according to the coordination instructions of the central processor.

[0123] Energy coordination supply

[0124] Solar energy access sub-module:

[0125] The solar collector collects solar energy and converts it into heat energy, which is transmitted to the heat exchanger through the pipeline.

[0126] The solar energy storage system stores the excess heat energy collected by the solar collector for use when solar energy is insufficient.

[0127] Geothermal energy access sub-module:

[0128] The ground source heat pump system extracts geothermal energy and converts it into heat energy that can be used by the boiler system, connected to the heat exchanger through the pipeline.

[0129] Condensate water treatment sub-module:

[0130] The condensate water produced during the operation of the boiler enters the filter to remove impurities in the condensate water, ensuring the cleanliness of the condensate water.

[0131] The filtered condensate water enters the heat exchanger, using the waste heat in the condensate water to recover heat through the heat exchanger for preheating boiler feed water or other heating media.

[0132] The condensate water after recovering waste heat is detected by water quality detection equipment to determine whether it meets the boiler feed water requirements. If the water quality meets the standards, it is directly reused to the boiler system; if the water quality does not meet the standards, it is further treated, such as removing dissolved impurities through reverse osmosis equipment, to ensure the safety of condensate water reuse.

[0133] Emergency energy sub-module:

[0134] When the main power supply fails or is insufficient, the emergency generator starts to provide emergency power support for the system, ensuring the normal operation of the key equipment of the system.

[0135] 5. Data storage and remote monitoring

[0136] Data storage:

[0137] The data storage and analysis submodule of the central processor module stores the system operation data in the storage unit, facilitating subsequent analysis and traceability.

[0138] Remote monitoring:

[0139] The remote communication unit of the remote communication submodule sends the key data of the system operation to the external operation and maintenance platform, and the operation and maintenance personnel can view the system operation state in real time through the remote monitoring system, receive fault alarm information, and remotely issue operation instructions.

[0140] The present application removes impurities in the condensate water through the filter, recovers the waste heat in the condensate water through the heat exchanger, and is used for preheating the boiler inlet water or other media that need to be heated, thereby improving the energy utilization efficiency. The present application introduces a solar collector and a ground source heat pump system to convert solar energy and geothermal energy into heat energy, which works with the boiler system through the heat exchanger to reduce the dependence on natural gas. The present application monitors the operating parameters of the boiler system in real time through the sensor, generates control instructions according to the preset strategy through the central processor, and realizes the automatic control of the boiler system and the energy collaborative module, thereby improving the operation efficiency and stability. The present application transmits the system operation data to the external operation and maintenance platform through the remote communication module to realize remote monitoring and fault warning, thereby reducing the operation and maintenance cost.

[0141] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A gas boiler heat recovery and energy synergy system, characterized in that, The application relates to a boiler system and an energy coordination method thereof. The boiler system comprises: A water quality processing submodule, comprising: A softened water tank for storing softened water after preliminary processing; 2. The gas boiler heat recovery and energy co-ordination system of claim 1, characterized in that, An iron ion remover connected with the softened water tank for removing iron ions in the softened water; A water softener connected with the iron ion remover for reducing the hardness of the softened water and reducing calcium and magnesium ions in the water; A heat energy generation and exchange submodule, comprising: A boiler body connected with the water softener for generating heat energy by burning natural gas and heating the softened water; A heat exchanger connected with the boiler body and an external heating system for receiving heat generated by the boiler body and transferring the heat to medium needing heating to provide heat energy for the external heating system. The energy coordination module comprises: A solar energy access submodule connected with the central processor module for collecting solar energy, converting the solar energy into heat energy available for the boiler system according to the coordination instruction of the central processor module, and storing the excess heat energy. A geothermal energy access submodule connected with the central processor module for extracting geothermal energy and converting the geothermal energy into heat energy available for the boiler system according to the coordination instruction of the central processor module; 3. The gas boiler heat recovery and energy co-ordination system of claim 1 or 2, characterized in that, A filter connected with the boiler system for filtering condensed water generated by the boiler system; A heat exchanger connected with the solar energy access submodule, the geothermal energy access submodule, the filter and the boiler system for converting the heat energy available for the boiler system from the solar energy and the geothermal energy and recycling the excess heat in the condensed water and transmitting the heat to the boiler system. The solar energy access submodule comprises a solar energy collector, and the geothermal energy access submodule comprises a ground source heat pump system. The energy coordination module further comprises: An emergency energy submodule connected with the central processor module and the boiler system for providing emergency power support for the boiler system when the main energy supply fails or is insufficient according to the coordination instruction of the central processor module.

4. The gas boiler heat recovery and energy co-ordination system of claim 3, wherein, The emergency energy submodule is an emergency generator.

5. The gas boiler heat recovery and energy co-ordination system of claim 3, wherein, The intelligent regulation and control module comprises: A data acquisition submodule connected with the boiler system and the central processor module for monitoring the operation data of the boiler system in real time and transmitting the operation data to the central processor module after preliminary processing; 6. The gas boiler heat recovery and energy co-ordination system of claim 5, wherein, A control execution submodule connected with the central processor module for receiving the regulation and control instruction fed back by the central processor module and adjusting and controlling the equipment in the boiler system.

7. The gas boiler heat recovery and energy co-ordination system of claim 1 or 2, characterized in that, ​ ​ ​ 8. The gas boiler heat recovery and energy co-ordination system of claim 7, characterized in that, The data acquisition submodule comprises a temperature sensor, a pressure sensor and a flow sensor.

9. The gas boiler heat recovery and energy co-ordination system of claim 7, wherein, The central processor module further comprises: The data receiving and processing submodule is connected with the intelligent regulation and control module, receives operation data from the intelligent regulation and control module, and performs data analysis and processing to evaluate the operation state of the boiler system. The decision and instruction generation submodule is connected with the data receiving and processing submodule, the intelligent regulation and control module and the energy coordination module, generates regulation and control instructions according to the data analysis results, generates coordination instructions based on the data analysis results according to a preset control strategy, and sends the regulation and control instructions to the intelligent regulation and control module and the coordination instructions to the energy coordination module.

10. The gas boiler heat recovery and energy co-ordination system of claim 1, wherein, The central processor module further comprises: The data storage and analysis submodule is connected with the boiler system, stores historical operation data of the boiler system, and performs deep analysis on the stored data to optimize the control strategy; The remote communication submodule is connected with the data storage and analysis submodule and an external operation and maintenance platform, and is used to support data transmission and remote monitoring of the boiler system and the external operation and maintenance platform.

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