Novel integrated energy system with internal combustion engine and electrode boiler coupled and using method

Abstract

The invention relates to the technical field of internal combustion engines, in particular to a novel integrated energy system with an internal combustion engine and an electrode boiler coupled and a using method of the novel integrated energy system. The steam type electrode boiler is used for generating high-pressure steam through electrode heating by using the electric power provided by the internal combustion engine generator set; and the steam ejector is used for mixing high-pressure steam generated by the steam type electrode boiler with low-pressure steam generated by a flue gas waste heat recovery device on the internal combustion engine generator set, and the pressure and the temperature of the low-pressure steam are increased through the ejection effect of the high-pressure steam, so that the gradient utilization of energy and the energy-saving effect are achieved. The system has the beneficial effects that efficient utilization of energy is achieved through coupling of the internal combustion engine generator set and the steam type electrode boiler and recovery of flue gas waste heat.

Description

Technical Field

[0001] The present invention relates to the technical field of internal combustion engines, in particular to a novel integrated energy system coupling an internal combustion engine with an electrode boiler and a method for using the system. Background Art

[0002] In the future, wind power and photovoltaic power generation will gradually become the main power sources. Wind power and photovoltaic power generation have significant intermittent and volatile characteristics. The demand for power system frequency regulation continues to increase. The power system needs to respond to wind power and photovoltaic power fluctuations with greater amplitude, faster speed and higher precision to ensure the power balance of the power system and realize the large-scale utilization of renewable energy. As the proportion of wind power and photovoltaic power generation continues to increase rapidly, the existing frequency-regulated power sources will not be able to meet the frequency-regulated needs of the system, and the power system is in urgent need of adding new frequency-regulated power sources.

[0003] At present, the generator sets that have been used in actual systems and can be used as peak-shaving and frequency-regulating power sources in power systems include coal-fired generator sets, gas turbines (divided into cogeneration type and peak-shaving type), pumped storage and energy storage batteries. Coal-fired generator sets are still the main units in my country's power system, undertaking most of the peak-shaving and frequency-regulating tasks of the power system. However, coal-fired units have equipment with large inertia such as boilers and steam turbines. The response speed during frequency regulation operation is low, and the regulation rate is only 1% to 2% of the rated power / minute. The minimum load rate is difficult to be lower than 30% of the rated power. Moreover, the frequency regulation operation of coal-fired units may cause the units to operate at an operating point with low fuel utilization efficiency, resulting in a decrease in economic efficiency. With the increase of renewable energy in the system, the demand for peak-shaving and frequency regulation in the power system has increased significantly. The existing peak-shaving and frequency regulation capabilities of coal-fired power units have gradually failed to meet the needs of frequency stability in the power system. It is urgent to explore new peak-shaving and frequency regulation resources and corresponding technical means of operation.

[0004] Internal combustion engine power generation (hereinafter referred to as "internal combustion engine") is a relatively mature power generation technology. Internal combustion engine generator sets have the characteristics of fast regulation speed and high regulation accuracy. The start and stop time is less than 1 minute, and the frequency regulation rate can reach 60% to 100% of the rated output per minute, which is much faster than coal-fired power, gas turbine and other generator sets, and is basically comparable to the regulation performance of electrochemical energy storage. However, due to the low exhaust temperature of internal combustion engines, if waste heat boilers are used, the steam temperature is not high and the utilization efficiency is low, which does not meet the requirements of industrial steam loads. Summary of the invention

[0005] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] The purpose of the present invention is to provide a novel integrated energy system coupling an internal combustion engine with an electrode boiler.

[0007] Therefore, its purpose is to solve the problem that due to the low exhaust temperature of the internal combustion engine, if the waste heat boiler is used, the steam temperature is not high, the utilization efficiency is low, and it cannot meet the industrial steam load.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a new type of integrated energy system coupled with an internal combustion engine and an electrode boiler, which includes an internal combustion engine generator set, which is used to generate mechanical energy by burning natural gas fuel and drive a generator to generate electricity; a steam-type electrode boiler, which uses the electricity provided by the internal combustion engine generator set to generate high-pressure steam through electrode heating; a steam ejector, which is used to mix the high-pressure steam generated by the steam-type electrode boiler with the low-pressure steam generated by the flue gas waste heat recovery device on the internal combustion engine generator set, and increase the pressure and temperature of the low-pressure steam through the injection effect of the high-pressure steam, thereby achieving cascade utilization of energy and energy-saving effects.

[0009] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled to the present invention, the steam ejector includes a high-pressure steam inlet for receiving high-pressure steam from the steam-type electrode boiler; a low-pressure steam inlet for receiving low-pressure steam from the flue gas waste heat recovery device or the condensate flash evaporation system on the internal combustion engine generator set; a nozzle assembly, the nozzle assembly is connected to the high-pressure steam inlet, and is used to accelerate the high-pressure steam; a mixing chamber, the mixing chamber is connected to the nozzle assembly and the low-pressure steam inlet, and is used to mix high-speed high-pressure steam with low-pressure steam to increase the pressure and temperature of the low-pressure steam through momentum exchange; an outlet is used to discharge the treated steam.

[0010] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled to the present invention, the temperature of the high-pressure steam is 270°C and the pressure is 1.4MPa, the temperature of the low-pressure steam is 240°C and the pressure is 0.8MPa

[0011] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled with the present invention, the steam-type electrode boiler is connected to the internal combustion engine generator set through a power line, wherein at least a part of the electricity generated by the internal combustion engine generator set is configured to supply the steam-type electrode boiler, so that the steam-type electrode boiler generates steam.

[0012] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled to the present invention, the flue gas waste heat recovery device includes a heat exchange component for absorbing heat from the high-temperature flue gas generated by the internal combustion engine generator set during the power generation process; a steam generator connected to the heat exchange component for receiving preheated water and further heating it to become low-pressure steam.

[0013] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled to the present invention, the heat exchange component includes a plurality of heat exchange tubes arranged in parallel, and water or a water-based working fluid flows inside the heat exchange tubes to promote the formation of steam.

[0014] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled to the present invention, the flue gas waste heat recovery device also includes a purification component for filtering particulate matter in the flue gas to reduce pollution to the heat exchange tube and increase the service life of the device.

[0015] As a preferred solution of the new integrated energy system of the internal combustion engine and the electrode boiler coupled with the present invention, the flue gas waste heat recovery device also includes a steam pipe for conveying the low-pressure steam generated by the flue gas waste heat recovery device and the high-pressure steam generated by the steam-type electrode boiler to the steam ejector; wherein the steam ejector is used to mix the low-pressure steam and high-pressure steam from the steam pipe and form steam that meets the industrial load requirements.

[0016] As a preferred solution of the new type of comprehensive energy system coupled with an internal combustion engine and an electrode boiler of the present invention, the power system is used to control the internal combustion engine generator set, the steam-type electrode boiler and the flue gas waste heat recovery device, and the power system includes a control system, which is connected to the internal combustion engine generator set, the steam-type electrode boiler and the flue gas waste heat recovery device through a signal line; a data acquisition module, which is used to collect real-time operation data from each device; a data processing module, which is used to analyze the real-time operation data and determine the optimal operation mode; an instruction generation module, which is used to generate control instructions according to the optimal operation mode; a communication interface, which is used to send the control instructions to the corresponding device; a fault detection module, which is used to identify the abnormal operation of each device and trigger it when a fault is detected; a safety protection module, which automatically adjusts the working state of the equipment when a potential danger is detected to prevent equipment damage or accidents; the control system realizes data exchange with an external monitoring center through wireless or wired communication to remotely monitor and manage the operation status of the entire system.

[0017] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for using a new type of integrated energy system coupled with an internal combustion engine and an electrode boiler, comprising the new type of integrated energy system coupled with an internal combustion engine and an electrode boiler, and,

[0018] (a) An internal combustion engine generator set is used as the power source of the system to generate mechanical energy by burning fuel and driving a connected generator to generate electrical energy; (b) Part of the electrical energy generated in step (a) is supplied to a steam-type electrode boiler for generating high-pressure steam; (c) In step (a), the flue gas generated during the operation of the internal combustion engine is used to recover the waste heat contained therein through a flue gas waste heat recovery device, and the waste heat is used to generate low-pressure steam; (d) The high-pressure steam generated in step (b) is mixed with the low-pressure steam generated in step (c) to form a steam load that meets the needs of industrial users.

[0019] The beneficial effects of the new integrated energy system and method of use of the internal combustion engine and electrode boiler coupling of the present invention are: through the coupling of the internal combustion engine generator set and the steam-type electrode boiler, efficient and stable utilization of energy is achieved. The system has the advantages of high energy utilization efficiency, low operating cost, and significant environmental benefits, and is suitable for various industrial scenarios requiring electricity and steam. The specific technical effects are as follows:

[0020] The efficient use of energy is achieved through the coupling of the internal combustion engine generator set and the steam-type electrode boiler, as well as the recovery of flue gas waste heat.

[0021] The system's operating costs are reduced by reducing the frequent power changes and starts and stops of the internal combustion engine generator sets and optimizing the steam mixing ratio.

[0022] Through the efficient flue gas waste heat recovery technology, the system's emission pollution is reduced, which has significant environmental benefits.

[0023] The integrated energy system of the present invention is applicable to various industrial scenarios requiring electricity and steam and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 This is a system block diagram of the present invention.

[0026] In the figure:

[0027] 100. Internal combustion engine generator set; 200. Steam-type electrode boiler; 300. Steam ejector; 301. Gas waste heat recovery device; 400. Power system. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 , which is the first embodiment of the present invention, and provides a novel integrated energy system of coupling an internal combustion engine with an electrode boiler, including an internal combustion engine generator set 100, which is used to generate mechanical energy by burning natural gas fuel and drive a generator to generate electricity;

[0033] The steam-type electrode boiler 200 uses the electricity provided by the internal combustion engine generator set 100 to generate high-pressure steam through electrode heating;

[0034] The steam ejector 300 is used to mix the high-pressure steam generated by the steam-type electrode boiler 200 with the low-pressure steam generated by the flue gas waste heat recovery device 301 on the internal combustion engine generator set 100, and to increase the pressure and temperature of the low-pressure steam through the injection of the high-pressure steam, thereby achieving cascade utilization of energy and energy-saving effects.

[0035] In this embodiment, the internal combustion engine generator set 100 is the power source of the system, which is mainly composed of an internal combustion engine and a generator connected thereto. The internal combustion engine uses clean energy such as compressed natural gas (CNG) or liquefied natural gas (LNG) as fuel, burns under high temperature and high pressure conditions to generate power, drives the generator connected thereto to operate, and then outputs electrical energy. In this process, in addition to the output of electricity, the internal combustion engine also emits a large amount of waste heat, which is usually present in the exhaust flue gas.

[0036] The steam-type electrode boiler 200 is an efficient and environmentally friendly heating device that directly converts electrical energy into thermal energy to generate the required steam. In this system, the steam-type electrode boiler 200 uses electricity from the internal combustion engine generator set 100 to heat water through the resistance heat generated when the current passes through the electrodes in the water to form high-quality steam. This steam can be used for heating needs in industrial production processes, or used for other purposes after further processing.

[0037] The steam ejector 300 is a device that uses the negative pressure effect generated by high-speed flowing steam (called "driving steam") at the nozzle to absorb and compress another lower-pressure steam (called "extracted steam"). In this system, the high-pressure steam generated by the steam-type electrode boiler 200 is used as driving steam, and the low-pressure steam generated by the internal combustion engine flue gas waste heat recovery device 301 is used as the extracted steam. Through the action of the steam ejector 300, the pressure and temperature of the low-pressure steam are increased, and after reaching a certain standard, it can be used together with the high-pressure steam, thereby realizing the cascade utilization of energy.

[0038] By raising the originally wasted low-pressure steam to the high-pressure steam level, the demand for high-quality energy is reduced, energy consumption is reduced, and greenhouse gas emissions are reduced.

[0039] The system can adjust the working state of the electrode boiler and the parameter setting of the steam ejector 300 according to actual needs, and flexibly respond to changes in energy demand in different scenarios.

[0040] Example 2

[0041] Reference Figure 1 , which is the second embodiment of the present invention, and this embodiment provides a new type of integrated energy system coupling an internal combustion engine and an electrode boiler. The steam ejector 300 includes a high-pressure steam inlet for receiving high-pressure steam from the steam-type electrode boiler 200; a low-pressure steam inlet for receiving low-pressure steam from the flue gas waste heat recovery device 301 or the condensate flash evaporation system on the internal combustion engine generator set 100; a nozzle assembly, the nozzle assembly is connected to the high-pressure steam inlet, and is used to accelerate the high-pressure steam; a mixing chamber, the mixing chamber is connected to the nozzle assembly and the low-pressure steam inlet, and is used to mix high-speed high-pressure steam with low-pressure steam, and increase the pressure and temperature of the low-pressure steam through momentum exchange; an outlet is used to discharge the treated steam.

[0042] In this embodiment, the high-pressure steam inlet is an interface connected to the steam-type electrode boiler 200. The steam-type electrode boiler 200 uses electricity to directly heat a liquid medium (usually water) to generate high-temperature and high-pressure steam.

[0043] The low-pressure steam inlet is responsible for collecting steam converted from waste heat generated during the operation of the internal combustion engine generator set 100, or steam released from condensed water.

[0044] The nozzle assembly is installed after the high-pressure steam inlet, and its main function is to accelerate the incoming high-pressure steam. The purpose of this is to utilize the Bernoulli effect (Bernoulli's Principle), that is, the increase in fluid velocity will lead to a decrease in pressure, thus forming a low-pressure area at the nozzle outlet, attracting low-pressure steam into the mixing chamber.

[0045] The mixing chamber is located between the nozzle assembly and the low-pressure steam inlet. Here, high-speed high-pressure steam meets and mixes with low-pressure steam. Due to the difference in momentum between the two, the high-pressure steam will drive the low-pressure steam to move, and the pressure and temperature of the low-pressure steam will be increased by momentum exchange.

[0046] The steam treated in the mixing chamber will be discharged through the outlet, so that the final discharged steam can meet the needs of subsequent processes, such as driving turbines, heating, etc.

[0047] The waste heat generated by the internal combustion engine generator set 100 is converted into a useful energy form, thereby improving the overall energy utilization rate. The system can adjust the quality of steam according to actual needs, is suitable for a variety of industrial application environments, reduces dependence on traditional fossil fuels, and helps reduce greenhouse gas emissions and other pollutants.

[0048] In the present invention, the temperature of the high-pressure steam is 270° C. and the pressure is 1.4 MPa, and the temperature of the low-pressure steam is 240° C. and the pressure is 0.8 MPa.

[0049] The steam-type electrode boiler 200 is connected to the internal combustion engine generator set 100 via a power line, wherein at least a portion of the power generated by the internal combustion engine generator set 100 is configured to be supplied to the steam-type electrode boiler 200, so that the steam-type electrode boiler 200 generates steam.

[0050] In this embodiment, the steam-type electrode boiler 200 is a device that uses electric current to directly heat boiler water to generate steam. The internal combustion engine generator set 100 generates electricity by burning fuel to drive the generator. When the two systems are connected through a power line, the internal combustion engine generator set 100 can not only supply power to the external load, but also allocate part of the electricity to the electrode boiler for producing steam.

[0051] Example 3

[0052] Reference Figure 1, which is the third embodiment of the present invention, and provides a new type of integrated energy system coupled with an internal combustion engine and an electrode boiler, wherein a flue gas waste heat recovery device 301 includes a heat exchange component for absorbing heat from high-temperature flue gas generated by the internal combustion engine generator set 100 during power generation; and a steam generator connected to the heat exchange component for receiving preheated water and further heating it to form low-pressure steam. The heat exchange component includes a plurality of heat exchange tubes arranged in parallel, and water or a water-based working fluid flows inside the heat exchange tubes to promote the formation of steam. The flue gas waste heat recovery device 301 includes a purification component for filtering particulate matter in the flue gas to reduce pollution to the heat exchange tube and increase the service life of the device. The steam pipeline is used to transport the low-pressure steam generated by the flue gas waste heat recovery device 301 and the high-pressure steam generated by the steam-type electrode boiler 200 to the steam ejector 300; wherein the steam ejector 300 is used to mix the low-pressure steam and the high-pressure steam from the steam pipeline and form steam that meets the industrial load requirements.

[0053] In this embodiment, in order to ensure the safety and reliability of long-term operation, the heat exchange tube should be made of corrosion-resistant and high-temperature resistant materials, such as stainless steel or other alloy materials. At the same time, in order to enhance the thermal conductivity, fins can be added to the surface of the heat exchange tube or other technical means to enhance heat transfer can be adopted.

[0054] In order to protect the heat exchange components from being polluted by particulate matter in the flue gas, the system is specially provided with a purification component in the flue gas waste heat recovery device 301. The component can use technical means such as electrostatic dust removal and filter filtration to effectively remove solid particulate matter in the flue gas, thereby reducing the wear on the heat exchange tubes, extending the service life of the equipment, and ensuring that the heat exchange efficiency is not affected.

[0055] The steam generator receives preheated water and further heats it to a low-pressure steam state.

[0056] The steam pipeline is not only responsible for conveying low-pressure steam from the flue gas waste heat recovery device 301, but also undertakes the task of conveying high-pressure steam generated by the steam-type electrode boiler 200 to the steam ejector 300. The steam ejector 300 can effectively mix steam of different qualities to form final product steam that meets the industrial load requirements.

[0057] In summary, this integrated energy system achieves effective recovery and utilization of flue gas waste heat through the coupling of the internal combustion engine and the electrode boiler, which not only improves energy utilization efficiency, but also provides a more stable and reliable steam supply for industrial production.

[0058] The power system 400 for controlling the internal combustion engine generator set 100, the steam-type electrode boiler 200 and the flue gas waste heat recovery device 301 includes a control system connected to the internal combustion engine generator set 100, the steam-type electrode boiler 200 and the flue gas waste heat recovery device 301 through a signal line; a data acquisition module for collecting real-time operating data from each device; a data processing module for analyzing real-time operating data and determining the optimal operating mode; an instruction generation module for generating control instructions according to the optimal operating mode; a communication interface for sending control instructions to corresponding devices; a fault detection module for identifying abnormal operating conditions of each device and triggering when a fault is detected; a safety protection module for automatically adjusting the working state of the equipment when a potential danger is detected to prevent equipment damage or accidents; the control system realizes data exchange with an external monitoring center through wireless or wired communication to remotely monitor and manage the operating status of the entire system.

[0059] In this embodiment, the control system is not only responsible for receiving information from the data acquisition module, but also responsible for providing necessary input to the instruction generation module, thereby guiding the coordinated operation of the internal combustion engine generator set 100, the steam-type electrode boiler 200, and the flue gas waste heat recovery device 301. The control system adopts a distributed architecture, and each subsystem has its own controller, but all controllers share information and coordinate control through the central server to achieve global optimization.

[0060] The data acquisition module is responsible for collecting various parameters in real time from the internal combustion engine generator set 100, the steam-type electrode boiler 200 and the flue gas waste heat recovery device 301, such as physical quantities such as temperature, pressure, flow, vibration, and the operating status of the equipment (such as start and stop status). After these data are acquired by sensors, they are converted into digital signals through analog / digital converters and then transmitted to the data processing module for processing.

[0061] The instruction generation module is the bridge between the data processing module and the actual equipment. It generates specific control instructions based on the analysis results provided by the data processing module. These instructions may include adjusting the output power of the generator, changing the heating rate of the boiler, or starting the flue gas purification device. These instructions are sent to the corresponding equipment actuator through the communication interface.

[0062] The communication interface supports multiple protocols and can use wired (such as RS485, Ethernet) or wireless (such as Wi-Fi, ZigBee) methods for data transmission, ensuring efficient and reliable information exchange between the system and each sub-device. In addition, the communication interface also supports data exchange with external monitoring centers, allowing managers to remotely access system status through the Internet for remote diagnosis and management.

[0063] The fault detection module in the power system 400 continuously monitors the status of all devices and immediately triggers the safety protection mechanism once an abnormality is found. The safety protection module can take measures at the first time, such as stopping the operation of the equipment, switching to the backup system, or adjusting the working parameters to avoid the expansion of possible faults, thereby ensuring the safe and stable operation of the overall system.

[0064] The method for using the new integrated energy system of coupling an internal combustion engine with an electrode boiler is that the internal combustion engine generator set 100 generates mechanical energy by burning fuel in the internal combustion engine, and this mechanical energy is then used to drive a generator connected to the same shaft, thereby converting the mechanical energy into electrical energy; a portion of the electrical energy generated by the internal combustion engine generator set 100 will be supplied to a special device, the steam-type electrode boiler 200. This type of boiler uses electrical energy to directly heat the water in the boiler, thereby quickly generating high-pressure steam; at the same time, during the operation of the internal combustion engine generator set 100, exhaust gas will be discharged, and these exhaust gases contain a large amount of thermal energy. In order to improve the energy efficiency of the entire system, the flue gas will pass through a flue gas waste heat recovery device 301, which can capture the heat in the exhaust gas and use this part of the heat to heat water, thereby generating low-pressure steam, which can not only reduce heat waste, but also provide an additional energy source for the system; the last step is to mix the high-pressure steam with the low-pressure steam. By adjusting the ratio of high-pressure steam to low-pressure steam, the pressure and temperature of the final steam can be controlled according to the actual needs of industrial users to meet different process requirements.

[0065] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0066] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0067] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A new integrated energy system coupling an internal combustion engine and an electrode boiler, characterized by: include, An internal combustion engine generator set (100) is used to generate mechanical energy by burning natural gas fuel and drive a generator to generate electricity; A steam-type electrode boiler (200) generates high-pressure steam by heating electrodes using the electricity provided by the internal combustion engine generator set (100); The steam ejector (300) is used to mix the high-pressure steam generated by the steam-type electrode boiler (200) with the low-pressure steam generated by the flue gas waste heat recovery device (301) on the internal combustion engine generator set (100), and to increase the pressure and temperature of the low-pressure steam through the injection of the high-pressure steam.

2. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 1 is characterized by: The steam ejector (300) comprises: A high-pressure steam inlet for receiving high-pressure steam from a steam-type electrode boiler (200); A low-pressure steam inlet, used to receive low-pressure steam from a flue gas waste heat recovery device (301) or a condensate flash system on an internal combustion engine generator set (100); a nozzle assembly connected to the high-pressure steam inlet and used to accelerate the high-pressure steam; A mixing chamber, the mixing chamber is in communication with the nozzle assembly and the low-pressure steam inlet, and is used to mix the high-speed high-pressure steam with the low-pressure steam, and to increase the pressure and temperature of the low-pressure steam through momentum exchange; Outlet for discharging treated steam.

3. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 2 is characterized by: The temperature of high-pressure steam is 270°C and the pressure is 1.4MPa, and the temperature of low-pressure steam is 240°C and the pressure is 0.8MPa.

4. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 3 is characterized by: The steam-type electrode boiler (200) is connected to the internal combustion engine generator set (100) via a power line, wherein at least a portion of the electricity generated by the internal combustion engine generator set (100) is configured to be supplied to the steam-type electrode boiler (200), so that the steam-type electrode boiler (200) generates steam.

5. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 1 is characterized in that: The flue gas waste heat recovery device (301) comprises: A heat exchange component for absorbing heat from high-temperature flue gas generated by an internal combustion engine generator set (100) during power generation; A steam generator connected to the heat exchange component is used to receive the preheated water and further heat it to become low-pressure steam.

6. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 5 is characterized by: The heat exchange component comprises a plurality of heat exchange tubes arranged in parallel, and water or a water-based working fluid flows inside the heat exchange tubes to promote the formation of steam.

7. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 6 is characterized by: The flue gas waste heat recovery device (301) also includes a purification component for filtering particulate matter in the flue gas, so as to reduce pollution to the heat exchange tube and increase the service life of the device.

8. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 5 is characterized by: The flue gas waste heat recovery device (301) further includes A steam pipeline, used for conveying the low-pressure steam generated by the flue gas waste heat recovery device (301) and the high-pressure steam generated by the steam-type electrode boiler (200) to the steam ejector (300); The steam ejector (300) is used to mix the low-pressure steam and the high-pressure steam from the steam pipeline to form steam that meets industrial load requirements.

9. The novel integrated energy system of the internal combustion engine coupled with the electrode boiler as claimed in claim 1 is characterized by: An electric power system (400) for controlling the internal combustion engine generator set (100), the steam-type electrode boiler (200) and the flue gas waste heat recovery device (301), the electric power system (400) comprising: A control system connected to the internal combustion engine generator set (100), the steam-type electrode boiler (200) and the flue gas waste heat recovery device (301) via a signal line; Data acquisition module, used to collect real-time operation data from each device; Data processing module, used to analyze real-time operation data and determine the best operation mode; An instruction generation module, used for generating control instructions according to the optimal operation mode; A communication interface, used to send control instructions to corresponding devices; Fault detection module, used to identify abnormal operation of each device and trigger when a fault is detected; Safety protection module, which automatically adjusts the working status of the equipment when potential danger is detected to prevent equipment damage or accidents; The control system exchanges data with an external monitoring center through wireless or wired communication to remotely monitor and manage the operating status of the entire system.

10. A method for using a novel integrated energy system coupling an internal combustion engine and an electrode boiler, characterized in that: A novel integrated energy system comprising an internal combustion engine coupled with an electrode boiler as claimed in any one of claims 1 to 9, and (a) Using an internal combustion engine generator set as the power source of the system, generating mechanical energy by burning fuel and driving a connected generator to generate electrical energy; (b) supplying part of the electric energy generated in step (a) to a steam-type electrode boiler for generating high-pressure steam; (c) In step (a), the flue gas generated during the operation of the internal combustion engine is passed through a flue gas waste heat recovery device (301) to recover the waste heat contained therein, and the waste heat is used to generate low-pressure steam; (d) mixing the high pressure steam produced in step (b) with the low pressure steam produced in step (c) to form a steam load that meets the needs of industrial users.

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