IoT-based environmental-friendly biogas generator monitoring system with intercooler and monitoring method using the same

Abstract

This invention relates to an IoT-based environmentally friendly biogas generator monitoring system and a monitoring method using an intercooler with adjustable intake air temperature, for monitoring generator operation in a manner that reduces smoke generated during generator operation by mixing biogas with the intake air. The intercooler includes: an exhaust temperature sensor disposed at the intake exhaust port of the intercooler for measuring the intake air temperature; a temperature regulating pipe section that supplies uncooled intake air, bypassing a heat exchanger, based on the intake air temperature measured by the exhaust temperature sensor; and a mixing regulator that, as it slides inside the intercooler toward the intake direction, regulates the supply of uncooled intake air via the temperature regulating pipe section. When the intake air temperature is lower than a preset intake air temperature, the monitoring unit controls the mixing regulator to mix uncooled intake air that does not flow through the heat exchanger from the temperature regulating pipe section with cooled intake air, thereby supplying it to the engine in a state of regulated intake air temperature.

Description

Technical Field

[0001] This invention relates to an IoT-based environmentally friendly biogas generator monitoring system and a monitoring method using the same, which can reduce the smoke generated when driving the generator by monitoring the generator's operation to generate electricity from the biogas mixture in the intake air. Background Technology

[0002] Typically, biogas is a naturally occurring gas, and biogas generators have been developed to generate electricity using biogas.

[0003] Biogas generators use biogas as fuel, or, by mixing biogas with air and supplying it, they can drive an engine to generate electricity.

[0004] However, the combustion of biogas produces smoke, which causes environmental pollution.

[0005] The existing Korean Patent Publication No. 10-2684043 (published on July 12, 2024) is titled "Biogas Generator with a Variable Intercooler Utilizing the Internet of Things (IoT)".

[0006] As described above, existing biogas generators include: an engine that supplies fuel mixed with biogas.

[0007] The engine is driven by its intake air; a variable intercooler is used to cool the intake air supplied to the engine.

[0008] The system is variable in size and includes a heat exchanger that exchanges heat with outside air to cool the intake air; and a power generation unit that generates electricity using the driving force of the engine, including an intake air temperature sensor to measure the temperature of the intake air discharged through the variable intercooler, and a variable controller.

[0009] The variable dimensions of the variable intercooler are controlled based on the temperature measured by the intake air temperature sensor.

[0010] Based on this structure, existing biogas generators can increase output and reduce smoke by monitoring the operation of the intercooler.

[0011] However, existing biogas generators require size modifications to adjust the intake air temperature. Since heat exchange with the intake air is necessary, changing the intake air temperature takes a significant amount of time.

[0012] Furthermore, due to the incomplete combustion of existing biogas generators, the most smoke is produced when the engine is started, making it difficult to minimize the smoke generated when starting the engine.

[0013] Existing technical documents

[0014] Patent documents

[0015] Patent Document 0001: KR 10-2023-0145616A

[0016] Patent document 0002: KR 10-2532045B1

[0017] Patent document 0003: KR ​​10-2511015B1

[0018] Patent document 0004: KR 10-2526437B1

[0019] Patent document 0005: KR 10-2532045B1

[0020] Patent document 0006: KR 10-2021-0066557A

[0021] Patent document 0007: KR 10-2002-0095385A

[0022] Patent document 0008: KR 10-2021-0063147A

[0023] Patent document 0009: US2021 / 0148660 A1

[0024] Patent document 0010: US11,085,364B2

[0025] Patent document 0011: US11,137,218B2

[0026] Non-patent literature

[0027] Non-patent document 0001: Excluding Wu Guangxian, 2, 2019 Korean Society of Automotive Engineers Spring Academic Conference, pp. 219-223, Experimental study on factors affecting the performance of air-cooled intercoolers.

[0028] Non-patent document 0002: Excluding Wu Guangxian, 3 others, 2022 Korean Society of Automotive Engineers Spring Academic Conference Materials, pp. 213-217, Experimental study related to the pressure difference of boosted air in the intercooler box.

[0029] Non-patent document 0003: Excluding Kim Sung-geun, 6 people, 2020 Korean Society of Automotive Engineers Autumn Academic Conference and Exhibition, pp. 61-62, Predicting the amount of condensate generated inside the intercooler under low temperature conditions.

[0030] Non-patent literature 0004: Except for Han Longze, 1 person, Proceedings of the Korean Society of Mechanical Engineers, Vol. B, No. 1, No. 2, 2007, pp. 132-140, Research related to the visualization of flames in diesel engines and the measurement of flame temperature and smoke using high-speed cameras.

[0031] Non-patent document 0005: Except for Kim Seung-cheol, 1 person, 2010.11. Korean Society of Automotive Engineers Autumn Academic Conference and Exhibition, pp.174-175, Experimental study on the influence of coolant temperature, intercooler temperature and EGR rate on the metal surface temperature of diesel engines. Summary of the Invention

[0032] Technical issues

[0033] The present invention is proposed to solve the problems described above. The object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereon with an adjustable intake air temperature intercooler. Since the monitoring unit changes the intake air temperature based on the intake air temperature measured by the inlet temperature sensor and the outlet temperature sensor, not only can the generation of smoke be minimized, but also, in the intercooler, the intake air temperature can be quickly adjusted by mixing the cooled intake air flowing through the heat exchanger and cooled by the temperature regulating pipe section with the uncooled intake air.

[0034] Furthermore, another object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereof with an intercooler having an adjustable intake air temperature. The intercooler is equipped with a mixing regulator for adjusting the supply of uncooled intake air. By adjusting the mixing amount of uncooled intake air with cooled intake air, the intake air temperature can be easily and accurately adjusted.

[0035] Furthermore, another objective of the present invention is to provide an IoT-based environmentally friendly biogas generator monitoring system and a monitoring method thereof, which includes an intake nozzle cover in the mixing regulator that increases the flow rate for discharge. Therefore, the intake temperature can be quickly and easily adjusted by rapidly introducing uncooled intake air into the temperature regulating pipe section through the flow rate of cooled intake air.

[0036] Furthermore, another object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereof with an intercooler having an adjustable intake air temperature. A mixing blade portion for generating vortices is formed on the outer periphery of the intake nozzle cover portion, so that the intake air temperature can be adjusted by rapidly mixing uncooled intake air and cooled intake air through vortices.

[0037] Furthermore, another object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereunder with an intercooler having an adjustable intake air temperature. By using the intercooler control unit to enable the mixing regulator to easily adjust the intake air temperature by reducing the mixing amount according to the intake air temperature, the intake air temperature can be made into a uniform temperature supplied to the engine.

[0038] Furthermore, another object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereof, which measures the intake air temperature and the amount of smoke generated by using a smoke measurement sensor. By verifying the amount of smoke generated based on the intake air temperature, intake air can be supplied to the engine at the optimal intake air temperature to minimize the generation of smoke.

[0039] Furthermore, another object of the present invention is to provide an Internet of Things-based environmentally friendly biogas generator monitoring system and a monitoring method thereof, which has an intercooler with adjustable intake air temperature, the intercooler being connected to a hydrogen supply unit for supplying hydrogen, and is capable of supplying hydrogen to the intake air mixture to minimize the generation of smoke.

[0040] Furthermore, another objective of the present invention is to provide an IoT-based environmentally friendly biogas generator monitoring system and a monitoring method thereof, which provides hydrogen supply to the intercooler before the start-up unit of the monitoring unit starts the start-up unit when the engine is started. In the start-up state, as hydrogen flows in, the smoke generated during start-up can be minimized.

[0041] Technical solution

[0042] To achieve the objectives described above, the IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature according to an embodiment of the present invention includes: an engine driven by biogas supply; a power generation device driven by the engine for generating electricity; an intercooler disposed in the engine for cooling the intake air; and a monitoring unit for controlling the intercooler. In the IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature, the intercooler includes: an exhaust temperature sensor disposed at the intake exhaust port of the intercooler for measuring the intake air temperature; a temperature regulating pipe section that supplies uncooled intake air bypassing the heat exchanger based on the intake air temperature measured by the exhaust temperature sensor; and a mixing regulator that, as it slides inside the intercooler toward the intake direction, regulates the supply amount of uncooled intake air through the temperature regulating pipe section. When the intake air temperature measured by the exhaust temperature sensor is lower than a preset intake air temperature, the monitoring unit controls the mixing regulator to mix the uncooled intake air that does not flow through the heat exchanger from the temperature regulating pipe section with the cooled intake air, thereby supplying it to the engine in a state of regulated intake air temperature.

[0043] The monitoring unit includes a smoke measurement sensor for measuring the amount of smoke emitted by the engine. Based on the amount of smoke measured by the smoke measurement sensor, the intake temperature measured by the exhaust temperature sensor can be adjusted to a preset intake temperature and supplied to the engine.

[0044] The mixing regulator may include an opening skirt that is in close contact with the inside of the temperature regulating pipe section, and the opening is adjusted by sliding inside the intercooler to discharge uncooled intake air into the intercooler.

[0045] The mixing regulator may include an intake nozzle cover having a diameter that gradually decreases from the opening skirt toward the intake outlet. As the flow rate of the cooled intake air flowing through the heat exchanger increases, an intake pressure for mixing is provided by drawing in uncooled intake air supplied to the periphery of the opening skirt.

[0046] The mixing regulator may include mixing blades formed on the outer periphery of the mixing regulator to improve mixing with cooled intake air flowing through the interior of the mixing regulator by generating vortices in the uncooled intake air flowing in from the outer surface of the mixing regulator.

[0047] The mixing regulator may include a regulator drive unit for driving the mixing regulator in the intercooler to slide, thereby adjusting the supply of uncooled intake air by sliding the mixing regulator according to the intake air temperature measured by the discharge temperature sensor.

[0048] The intercooler may include a hydrogen supply unit that supplies hydrogen to the interior of the intercooler for the purpose of reducing smoke from the intake air supplied to the engine through the intake and exhaust ports.

[0049] The monitoring unit may include a start-up control unit for controlling the start-up of the engine. In order to reduce the smoke generated when the engine is initially started, the hydrogen supply unit pre-supplyes hydrogen to the intercooler before starting the engine.

[0050] The start control unit can delay the operation of the start unit for starting the engine compared to the operation of the hydrogen supply valve, so that when a start signal for starting the engine is generated, the start unit operates after the hydrogen supply valve of the hydrogen supply unit is opened.

[0051] The monitoring method of the IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to an embodiment of the present invention is a control method for the IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to the embodiment. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler includes: an engine driven by biogas supply; a power generation device driven by the engine for generating electricity; an intercooler disposed in the engine for cooling the intake air; and a monitoring unit for controlling the intercooler, which can perform the following steps: causing the exhaust temperature sensor to measure the intake air temperature toward the engine; if the intake air temperature measured by the exhaust temperature sensor is lower than a preset intake air temperature, opening the temperature regulating pipe section by controlling the mixing regulator; and causing the cooled intake air flowing through the heat exchanger due to the opening of the temperature regulating pipe section to mix with the uncooled intake air that does not flow through the heat exchanger from the temperature regulating pipe section and supply it to the engine.

[0052] The monitoring unit includes a smoke detection sensor for measuring the amount of smoke emitted by the engine. The monitoring unit can perform the following steps: causing the smoke detection sensor to measure the amount of smoke; and adjusting the intake air temperature measured by the exhaust temperature sensor to a preset intake air temperature and supplying it to the engine based on the amount of smoke measured by the smoke detection sensor.

[0053] The monitoring unit may include a start-up control unit for controlling the start-up of the engine. In order to reduce the smoke generated when the engine is initially started, the hydrogen supply unit pre-supplyes hydrogen to the intercooler before starting the engine.

[0054] The start control unit can perform the following steps: receiving a start signal for starting the engine; supplying hydrogen to the intercooler by opening the hydrogen supply valve upon receiving the start signal; and causing the start unit for starting the engine to operate after opening the hydrogen supply valve.

[0055] The effects of the invention

[0056] According to the present invention, the intercooler control unit of the monitoring unit adjusts the intake air temperature based on the intake air temperature provided by the inlet temperature sensor and the outlet temperature sensor installed in the intercooler. Therefore, if the exhaust intake air temperature is too cold, the intake air temperature is quickly increased by mixing the uncooled intake air with the cooling intake air through the mixing regulating pipe unit. By supplying the undercooled intake air to prevent engine drive defects, not only can the generation of smoke be minimized, but the intake air temperature can also be quickly and easily adjusted and supplied to the engine.

[0057] Furthermore, the present invention regulates the amount of uncooled intake air supplied to the mixing regulating pipe section by means of a mixing regulator. As a result, not only can the intake air temperature be easily and accurately adjusted, but also, since the mixing regulator adjusts the amount of uncooled intake air and the mixing amount by adjusting the opening, the generation of smoke can be minimized by adjusting the intake air supplied with a uniform temperature.

[0058] Furthermore, the mixing regulator is equipped with an air intake nozzle cover for increasing the cooling air intake velocity. Therefore, the present invention can quickly and easily draw in uncooled air through the mixing regulating pipe section to achieve mixing.

[0059] Furthermore, a mixing blade portion for generating vortices is formed protruding around the intake nozzle cover portion. Therefore, the present invention can quickly and easily adjust the intake air temperature by easily mixing the uncooled intake air flowing into the mixing regulating pipe portion with the cooled intake air.

[0060] Furthermore, the present invention receives the measured smoke information from the smoke measurement sensor through the intercooler control unit, and verifies the amount of smoke generated based on the intake air temperature. Therefore, the intake air can be supplied at the optimal temperature to prevent smoke generation, thereby minimizing smoke generation.

[0061] Furthermore, the present invention supplies hydrogen to the interior of the cooler housing through a hydrogen supply unit, which can mix hydrogen with the intake air to minimize the generation of smoke.

[0062] Furthermore, when the engine is started, the start control unit causes the start unit to operate after the hydrogen supply unit has pre-supplied hydrogen to the intercooler before the start unit operates. Therefore, when no hydrogen is supplied, the smoke generated when starting the engine can be minimized. Attached Figure Description

[0063] Figure 1 The following is a structural diagram of an IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature, according to an embodiment of the present invention.

[0064] Figure 2 A diagram illustrating the generator structure of an IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler, according to an embodiment of the present invention.

[0065] Figure 3 The flowchart illustrates the monitoring method of changing the intake air temperature through the intercooler control unit in the monitoring method of the IoT-based environmental biogas generator monitoring system with an adjustable intake air temperature according to an embodiment of the present invention.

[0066] Figure 4 The flowchart illustrates a monitoring method for reducing smoke through an intercooler control unit in an IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature, according to an embodiment of the present invention.

[0067] Figure 5 The flowchart illustrates the monitoring method based on the start-up control unit in the monitoring method of the IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to an embodiment of the present invention.

[0068] Figure 6 This is a perspective view of an intercooler in an IoT-based environmentally friendly biogas generator monitoring system, which includes an intercooler with an adjustable intake air temperature, according to an embodiment of the present invention.

[0069] Figure 7 This is a plan sectional view of an intercooler in an IoT-based environmentally friendly biogas generator monitoring system, which includes an intercooler with an adjustable intake air temperature, according to an embodiment of the present invention.

[0070] Figure 8 The plan sectional view of the intercooler of the IoT-based environmental biogas generator monitoring system, which is configured with an adjustable intake air temperature according to an embodiment of the present invention, shows the mixed state of cooled intake air and uncooled intake air.

[0071] Figure 9 This is a perspective view of the mixing regulator of an intercooler in an IoT-based environmentally friendly biogas generator monitoring system, which is configured to have an adjustable intake air temperature, according to an embodiment of the present invention.

[0072] Figure 10 This diagram illustrates the control structure of the start-up control unit of an IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature, according to an embodiment of the present invention. Detailed Implementation

[0073] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0074] like Figure 1 and Figure 2 As shown, the IoT-based environmentally friendly biogas generator monitoring system 500 with an adjustable intake air temperature intercooler in this embodiment of the invention drives the engine 200 by burning biogas, and can use the power of the engine 200 to drive the power generation device 300 to generate electricity.

[0075] Furthermore, the air intake 201 of the engine 200 is connected to the intercooler 100, which can cool and supply the intake air, and can receive the intake air compressed by the intake compressor 210.

[0076] The intake air of engine 200 is mixed with biogas, or biogas is mixed with fuel for engine 200 or only biogas is supplied, and the engine can be driven by combustion. The engine can be a known diesel engine.

[0077] In this embodiment, the combustion of intake air mixed with biogas is used as an example for illustration.

[0078] On the other hand, the intake compressor 210 is provided with two compression fans. One compression fan is used to supply compressed intake air to the intercooler 100, and the other compression fan can be used to force exhaust air in and out to the outside.

[0079] A smoke reduction device 230 may be provided at the exhaust port 203 of the engine 200 to reduce the smoke contained in the exhaust. The smoke reduction device may be of various known forms.

[0080] The intercooler 100 can be connected to the hydrogen supply unit 160 for supplying hydrogen. The hydrogen supply unit 160, the intercooler 100, and the engine 200 can provide their respective information to the monitoring unit 400, which can control the operation of the hydrogen supply unit, the intercooler, and the engine.

[0081] The monitoring unit 400 can send and receive information and control signals from various structures via wireless or wired communication.

[0082] like Figures 3 to 5 As shown, the monitoring unit 400 may include: an intercooler control unit 430, which controls the intercooler 100 according to the intake air temperature and smoke; and a start-up control unit 410, which reduces the smoke generated during start-up.

[0083] To reduce start-up defects and smoke, the intercooler control unit 430 can adjust the intake air temperature of the intercooler 100.

[0084] like Figures 6 to 8 As shown, the intercooler 100 cools and supplies the intake air of the engine 200. As the output of the engine 200 is increased, the intake air temperature supplied by the intercooler 100 can be adjusted to measure the amount of smoke generated. It can be empirically demonstrated that the intercooler 100 reduces smoke.

[0085] The intercooler 100 receives and cools the intake air compressed by the intake compressor 210, and then supplies cooling and compressed air to the intake port 201 of the engine 200.

[0086] Intercooler 100 receives intake air compressed by intake compressor 210, and the compressed intake air is supplied through cooler housing 110.

[0087] An air intake inlet 111 is formed at one end of the cooler housing 110 to allow air to flow in, and an air outlet 113 is formed at the other end of the cooler housing 110 for heat exchange and cooling. The cooler housing 110 can be a hollow cylindrical shape.

[0088] A heat exchanger 120 for cooling the intake air can be provided inside the cooler housing 110. The heat exchanger 120 allows the refrigerant to exchange heat with the intake air flowing through the cooler housing 110 while circulating, thereby cooling the intake air.

[0089] The heat exchanger 120 can be of various known forms that allow heat exchange of refrigerant through circulation.

[0090] The heat exchanger 120 can adjust the temperature required to cool the intake air used for heat exchange according to the temperature of the refrigerant.

[0091] The refrigerant supplied to the heat exchanger 120 can be a liquid or a gas, and the heat exchanger 120 may also include a cooler for cooling and supplying the refrigerant.

[0092] The cooler housing 110 has an air inlet 111 and an air outlet 113 formed on both sides centered on the heat exchanger 120, and can form a shape in which the inner circumference gradually narrows towards the air inlet 111 and the air outlet 113.

[0093] A temperature regulating pipe section 130 may be provided in the cooler housing 110. When the intake air cooled by the heat exchanger 120 is lower than the preset intake air temperature, the cooled intake air cooled by the heat exchanger 120 is mixed with the intake air not cooled by the heat exchanger 120. In order to quickly increase the intake air temperature, the intake air flowing in from the intake air inlet 111 is supplied to bypass the heat exchanger 120 and toward the direction of the intake air outlet 113.

[0094] The temperature regulating pipe section 130 is a pipe that allows air to move. An air intake inlet 111 and an air outlet 113 that allow air to flow can be formed on the outside or inside of the cooler housing 110, which are separated from the space of the heat exchanger 120.

[0095] In cases where the intake air temperature is lower than the preset intake air temperature (sub-zero temperature) due to the heat exchanger 120, the temperature regulating pipe section 130 may cause uneven drive of the engine 200 due to the relatively low temperature, and the uneven drive of the engine 200 may cause increased smoke.

[0096] In this case, when the intake air temperature is adjusted by the heat exchanger 120, the temperature of the refrigerant needs to be changed. As the changed refrigerant flows through the heat exchanger 120, it is difficult to change the intake air temperature by the temperature of the heat exchanger 120 because the heat exchanger 120 needs to be heated or cooled.

[0097] Therefore, when the cooled intake air via the heat exchanger 120 is lower than the preset intake air temperature, the intercooler control unit 430 included in the monitoring unit 400 of the present invention rapidly increases the intake air temperature by mixing the uncooled intake air and the cooled intake air through the temperature regulating pipe section 130, thereby preventing uneven drive of the engine 200 and reducing smoke generation (see reference). Figure 3 ).

[0098] A mixing regulator 140 may be provided inside the cooler housing 110 to adjust the mixing amount of uncooled intake air supplied through the temperature regulating pipe section 130 in order to regulate the cooling intake air temperature.

[0099] like Figure 8 and Figure 9 As shown, the mixing regulator 140 can adjust the mixing amount of uncooled intake air by adjusting the opening of the pipe outlet 131 that supplies uncooled intake air from the temperature regulating pipe section 130 to the cooler housing 110.

[0100] The mixing regulator 140 is provided in the cooler housing 110. As the portion where the air intake outlet 113 is located slides in the direction of air intake movement, the opening degree can be adjusted by sliding the opening and closing of the pipe outlet 131.

[0101] The mixing regulator 140 can be configured with a shape corresponding to the internal shape of the part on the other side where the heat exchanger 120 is located. The mixing regulator 140 can have an opening skirt 141 formed at a position corresponding to the pipe outlet 131. The opening and closing and the opening degree of the pipe outlet 131 can be adjusted by sliding the mixing regulator 140.

[0102] The opening skirt 141 is formed in the form of a strip at the position of the cooler housing 110 corresponding to the pipe outlet 131, and can form a shape corresponding to the inner periphery of the cooler housing 110.

[0103] In the opening skirt 141, an air intake nozzle cover 143 may be formed at the location of the air intake outlet 113, and the inner circumference of the air intake nozzle cover 143 gradually narrows toward the air intake outlet 113.

[0104] In the cooler housing 110, as the cooling intake air flows through the interior via the heat exchanger 120, the flow rate increases due to the gradually narrowing area and is discharged through the intake and exhaust outlet 113. With the exhaust outlet 131 open by the opening skirt 141, the intake nozzle cover 143 can provide suction force in the direction of discharging the cooling intake air toward the outer surface of the intake nozzle cover 143.

[0105] Therefore, uncooled intake air can quickly enter the interior of the cooler housing 110 through the outlet 131 of the temperature regulating pipe section 130.

[0106] A nozzle hole 143a is formed through the inner side of the air intake nozzle cover 143, so that the cooling air intake through the heat exchanger 120 passes through and is discharged to the air intake outlet 113. When the mixing regulator 140 seals the air intake outlet 113, the nozzle hole 143a overlaps with the air intake outlet 113, and the air intake nozzle cover 143 can block the air intake from being discharged to the area around the nozzle hole 143a.

[0107] Furthermore, as the mixing regulator 140 moves toward the heat exchanger 120, if the intake nozzle cover 143 opens the intake outlet 113, and the nozzle hole 143a is separated from the intake outlet 113, the intake air flowing into the cooler housing 110 through the pipe outlet 131 moves toward the nozzle hole 143a through the outer surface of the intake nozzle cover 143. The cooled intake air discharged from the nozzle hole 143a and the uncooled intake air can mix in the part where the nozzle hole 143a and the intake outlet 113 are separated from each other.

[0108] In this case, a mixing blade portion 143b is provided on the outer surface of the intake nozzle cover portion 143, so that the cooled intake air discharged through the nozzle hole 143a and the uncooled intake air discharged through the intake outlet 113 are quickly mixed. In order to regulate the temperature and improve the mixing, a vortex is generated. The mixing blade portion 143b can be formed on the outer surface of the intake nozzle cover portion 143.

[0109] The mixing blade section 143b has multiple blades in an arc shape or inclined state centered on the nozzle hole 143a of the intake nozzle cover section 143. Uncooled intake air flowing in through the pipe outlet 131 is guided by the mixing blade section 143b and can be quickly mixed with cooled intake air by generating vortices.

[0110] The mixing regulator 140 can slide inside the cooler housing 110 via the regulator drive unit 145. The regulator drive unit 145 has a rack portion 146 formed along the direction of air intake towards the mixing regulator 140, and is provided with a pinion 147 that meshes with the rack portion 146 via a drive motor. The direction of movement of the mixing regulator 140 can be determined by the drive motor based on the rotation direction of the pinion 147.

[0111] On the other hand, the mixing regulator 140 can be controlled by the intercooler control unit 150. In order to measure the temperature of the cooled intake air and the uncooled intake air, the intercooler control unit 150 provides an inflow temperature sensor 151 at the intake air inlet 111 of the cooler housing 110 to measure the temperature of the uncooled intake air, and provides an outlet temperature sensor 153 at the intake outlet 113 to measure the temperature of the intake air that is regulated and supplied to the engine 200.

[0112] The temperature information measured by the inlet temperature sensor 151 and the outlet temperature sensor 153 is provided to the monitoring unit 400. As the temperature information measured by the monitoring unit 400 is provided to the intercooler control unit 150, the intake air temperature can be changed according to the measured intake air temperature and supplied to the engine 200.

[0113] The intercooler control unit 150 receives smoke information measured by the smoke detection sensor 155 located at the exhaust port 203 of the engine 200 for burning and discharging fuel, and adjusts the intake air temperature according to the amount of smoke, thereby minimizing smoke to regulate the intake air temperature and supplying it to the engine 200.

[0114] like Figure 4 As shown, for example, the intercooler control unit 150 can measure the amount of smoke based on the intake air temperature supplied by the intercooler 100 to verify the amount of smoke as the intake air temperature changes and accumulate data. The accumulated data can be used to set the optimal intake air temperature to minimize smoke generation and maintain the optimal intake air temperature to supply to the engine 200.

[0115] Of course, the intercooler control unit 150 drives the mixing regulator 140 through the regulator drive unit 145 and maintains the optimal intake temperature to minimize the amount of smoke generated, thereby improving cooling performance while minimizing the amount of smoke.

[0116] The smoke detection sensor 155 can detect one or more of the NOx, SOx, and PM contained in smoke, or simultaneously detect two or more of them.

[0117] When the engine 200 is initially started, in order to minimize the increase of smoke caused by uneven drive, the hydrogen supply unit 160 can mix hydrogen with the intake air and supply it.

[0118] If hydrogen is mixed into the intake air, the fuel explosiveness of the engine 200 is improved, and the engine 200 is prevented from generating too much heat. Therefore, smoke can be reduced to the maximum extent, especially for NOx and PM components in the smoke.

[0119] Of course, a smoke reduction device 230 is provided at the exhaust port 203 of the engine 200, which can reduce smoke emissions by processing the exhaust smoke. However, when the engine 200 is initially started, incomplete combustion and increased load may cause smoke emissions to be higher than under steady-state conditions.

[0120] To prevent this situation, when the engine 200 is initially started, the hydrogen supply unit 160 can supply hydrogen to minimize the generation of smoke until the engine 200's speed becomes stable.

[0121] In the intercooler 100, the hydrogen supply unit 160 has a hydrogen supply port 161 formed in the part where the inlet air inlet 111 is located. Hydrogen can be mixed with the inlet air through the hydrogen supply port 161. The hydrogen supply unit 160 includes a hydrogen storage tank 165. Hydrogen stored in the hydrogen storage tank 165 can be supplied to the hydrogen supply port 161 through the supply pipe 163.

[0122] When hydrogen flows through the heat exchanger 120, since the hydrogen supply unit 160 can change the mixing ratio of hydrogen according to the volume change, it is preferable that hydrogen is supplied to the inlet gas inlet 111 before the inlet gas flows through the heat exchanger 120.

[0123] A hydrogen supply valve 163a may be provided at the hydrogen supply port 161 to regulate the amount of hydrogen supplied. Of course, the hydrogen supply valve 163a can supply or block hydrogen.

[0124] In order to reduce smoke in the monitoring unit 400 when the engine 200 is started, the hydrogen supply valve 163a of the hydrogen supply unit 160 can be controlled by the start control unit 206 for controlling the engine 200, and can supply hydrogen to the hydrogen supply port 161.

[0125] like Figure 5 and Figure 10As shown, when the start control unit 206 receives a start signal through the engine control unit 205, before the start unit 207 for starting the engine 200 operates, the hydrogen supply valve 163a and the start unit 207 operate sequentially with a preset delay time, so as to preferentially supply hydrogen to the intake air mixture.

[0126] The preset delay time can be from a few milliseconds (ms) to a few seconds (s).

[0127] For example, if the engine control unit 205 for controlling the engine 200 receives a start signal for starting the engine 200, the start control unit 206 opens the hydrogen supply valve 163a and pre-supplyes hydrogen into the cooler housing 110, thereby causing the start unit 207 to operate. Thus, hydrogen can be mixed and intake air can be provided at the same time as starting to reduce the smoke generated during starting.

[0128] If hydrogen is supplied after the start-up unit 207 has started working, the smoke generated during the initial start-up will not be reduced because the hydrogen is supplied after the start-up.

[0129] To prevent this situation, the start control unit 206 needs to prioritize the supply of hydrogen. As the start unit 207 operates, since hydrogen can flow directly into the engine 200 at the same time as starting, the generation of smoke can be minimized.

[0130] The start control unit 206 sets the hydrogen supply valve 163a to a preset opening degree in order to supply hydrogen according to a preset ratio. Alternatively, it can receive the engine speed information of the engine 200 measured by the engine control unit 205 and proportionally control the opening degree of the hydrogen supply valve 163a according to the corresponding engine speed to change the amount of hydrogen supplied.

[0131] Furthermore, if the engine 200 starts stably, the start control unit 206 can block the hydrogen supply to the hydrogen supply valve 163a based on the engine 200 operating information provided by the engine control unit 205, or it can continuously supply hydrogen to the engine 200 at a supply amount less than the hydrogen supply amount after starting in order to reduce smoke.

[0132] The following describes the monitoring method of the IoT-based environmental biogas generator monitoring system with an adjustable intake air temperature intercooler, according to an embodiment of the present invention, and also explains the function and effect of each structure.

[0133] The IoT-based environmental biogas generator monitoring system 500 of this invention, which has an adjustable intake air temperature intercooler, drives the engine 200 by burning the biogas mixed with the intake air, and uses the driving force of the engine 200 to drive the power generation device 300 to generate electricity.

[0134] On the other hand, an intake compressor 210 is provided in the engine 200 for compressing and supplying intake air to the engine 200, and an intercooler 100 is provided in the intake compressor 210 for cooling the compressed intake air.

[0135] A smoke reduction device 230 is provided at the exhaust port 203 of the engine 200 to perform a process for removing smoke from the exhaust, such as a particulate filter (DPF).

[0136] According to the structure described above, in the IoT-based environmentally friendly biogas generator monitoring system 500 with an adjustable intake air temperature intercooler according to the embodiment of the present invention, when the engine 200 is initially started, the start control unit 410 of the start monitoring unit 400 controls the start-up.

[0137] like Figure 5 and Figure 10 As shown, if the start control unit 410 receives a start signal for starting the engine 200 through the engine control unit 205, the start control unit 206 opens the hydrogen supply valve 163a before the start unit 207 starts working.

[0138] If the hydrogen supply valve 163a is opened, the hydrogen from the hydrogen storage tank 165 flows into the cooler housing 110 through the supply pipe 163.

[0139] If hydrogen flows into the intercooler 100 when the hydrogen supply valve 163a is opened, the start control unit 206 starts the engine 200 by operating the start unit 207.

[0140] If engine 200 is activated, intake compressor 210 is also driven, compressing intake air to supply intercooler 100. As hydrogen mixes into intercooler 100, it is cooled by heat exchanger 120 and flows into intake port 201 of engine 200 to start engine 200.

[0141] If the engine 200 starts stably, the start control unit 206 controls the hydrogen supply valve 163a to block the supply of hydrogen after the engine 200 starts stably or after a preset time, based on the information provided by the engine control unit 205.

[0142] On the other hand, the intake air supplied to the intercooler 100 flows into the interior of the cooler housing 110 through the intake air inlet 111, and is discharged to the intake outlet 113 in a cooled state after passing through the heat exchanger 120. The cooled intake air discharged from the cooler housing 110 flows into the intake port 201 of the engine 200 and is ignited together with the biogas supplied to the engine 200. The exhaust gas 200 generated by the ignition is discharged through the exhaust port 203 of the engine 200, and after passing through the smoke reduction device 230 to filter the smoke, it is discharged to the outside.

[0143] like Figure 4 As shown, in the air intake 111, the intercooler 100 measures the intake air temperature by the inlet temperature sensor 151, and in the air intake outlet 113, measures the cooling intake air temperature by the outlet temperature sensor 153, and provides the measured temperatures to the intercooler control unit 150 of the monitoring unit 400.

[0144] As the intake air temperature is supplied by adjusting the temperature to maintain a constant intake air temperature and the intake air temperature cooled by the heat exchanger 120, the intercooler control unit 150 measures the smoke contained in the exhaust gas by the smoke measurement sensor 155.

[0145] When the amount of smoke generated is high, the intercooler control unit 150 can further reduce the intake air temperature by lowering the temperature of the heat exchanger 120.

[0146] like Figure 3 As shown, in order to reduce smoke emissions, if the intake air temperature is lower than the preset intake air temperature while the intake air temperature is reduced, the intercooler control unit 150 adjusts the intake air heat exchange temperature by adjusting the refrigerant of the heat exchanger 120. When adjusting the refrigerant temperature of the heat exchanger 120, a lot of time is required, which may cause the engine 200 to stop starting. In order to prevent the engine 200 from stopping due to uneven drive, the mixture regulator 140 should be driven at an intake air temperature above the preset temperature.

[0147] The mixing regulator 140 moves from the air inlet / outlet 113 toward the heat exchanger 120 via the regulator drive unit 145. As the air inlet / outlet 113 is separated from the nozzle orifice 143a, the opening skirt 141 for sealing the pipe outlet 131 also moves toward the heat exchanger 120, thereby opening the pipe outlet 131.

[0148] If the pipe outlet 131 is opened, part of the intake air flowing into the intake air inlet 111 is cooled by the heat exchanger 120 and discharged through the nozzle hole 143a of the intake nozzle cover 143. At the same time, the remaining intake air bypasses the heat exchanger 120 through the temperature regulating pipe section 130 and is discharged to the pipe outlet 131.

[0149] In this case, as the flow rate of the intake air discharged from the nozzle orifice 143a increases, the uncooled intake air discharged through the pipe outlet 131 can be quickly discharged from the pipe outlet 131 due to the intake of surrounding air.

[0150] As the intake air discharged from the pipe outlet 131 rotates around the intake nozzle cover 143 via the mixing blade portion 143b, it mixes with the cooled intake air as it flows into the space between the nozzle orifice 143a and the intake outlet 113. The mixture is then discharged to the intake outlet 113 in a state of temperature regulation and supplied to the engine 200 after supplementing the reduced temperature of the cooled intake air with uncooled intake air.

[0151] In this case, the intercooler control unit 150 measures the final intake air temperature supplied to the engine 200 based on the exhaust temperature sensor 153 and adjusts the opening of the pipe outlet 131 by adjusting the sliding distance of the mixing regulator 140. When the temperature decreases, the intake air temperature of the engine 200 is changed by increasing the opening of the pipe outlet 131 to compensate for the decreased temperature, thereby preventing uneven drive.

[0152] Furthermore, even when the engine 200 is operating normally, the intercooler control unit 150 uses uncooled intake air to quickly respond to temperature changes and supply it to the engine 200 in order to maintain a constant cooling intake air temperature measured by the exhaust temperature sensor 153, without having to regulate the temperature through the refrigerant in the heat exchanger 120.

[0153] Furthermore, when the drive of the engine 200 becomes stable, the intercooler control unit 150 adjusts the amount of uncooled intake air mixture through the mixing regulator 140 based on the smoke information measured by the smoke detection sensor 155 to set the intake air temperature that minimizes smoke. In order to maintain the set intake air temperature, the mixing regulator 140 is controlled to provide the engine 200 with intake air at the optimal intake air temperature, thereby minimizing the generation of smoke.

[0154] Therefore, with the IoT-based environmental biogas generator monitoring system 500 with an adjustable intake air temperature intercooler according to the embodiments of the present invention and the monitoring method thereunder, the intercooler control unit 430 of the monitoring unit 400 can verify the amount of smoke that changes with the intake air temperature based on the intake air temperature measured by the inlet temperature sensor 151 and the outlet temperature sensor 153 and the amount of smoke generated provided by the smoke measurement sensor 155. The intake air temperature can be adjusted to minimize the generation of smoke by minimizing the amount of smoke generated.

[0155] Furthermore, when the intake air temperature is lower than the preset intake air temperature or when the intake air temperature needs to be adjusted, the intercooler control unit 430 of the present invention adjusts the intake air temperature by mixing the cooled intake air with the uncooled intake air through the temperature adjustment pipe unit 130, thereby quickly adjusting the intake air temperature for supply.

[0156] Furthermore, the intercooler 100 of the present invention can slide the mixing regulator 140 inside the cooler housing 110 to adjust the intake air volume of the uncooled intake air, thereby easily and accurately adjusting the intake air temperature to be supplied to the engine 200.

[0157] Furthermore, since the present invention supplies hydrogen to the intake air through the hydrogen supply unit 160, the generation of smoke can be minimized to prevent environmental pollution.

[0158] Furthermore, if the start control unit 410 receives the start signal from the engine 200, the present invention can open the hydrogen supply valve 163a to preferentially supply hydrogen to the intercooler 100 before the start unit 207 starts working, thereby enabling the start unit 207 to work. As hydrogen flows in at the same time as the engine 200 is started, the smoke generated during start-up can be minimized to prevent environmental pollution.

[0159] While the embodiments of the present invention have been described above, the scope of protection of the present invention is not limited thereto, including all changes and modifications within the equivalent scope that can be easily modified by those skilled in the art based on the embodiments of the present invention.

Claims

1. An IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler, comprising: An engine, driven by a supply of biogas; a power generation device, driven by the engine, for generating electricity; An intercooler, located in the engine, is used to cool the intake air; and a monitoring unit for controlling the intercooler, wherein, The intercooler includes: An exhaust temperature sensor is installed at the air inlet and outlet of the intercooler to measure the air inlet temperature; The temperature regulating piping section supplies uncooled intake air, bypassing the heat exchanger, based on the intake air temperature measured by the discharge temperature sensor; and The mixing regulator, as it slides inside the intercooler toward the intake direction, adjusts the supply of uncooled intake air via the temperature regulating pipe section. When the intake air temperature measured by the exhaust temperature sensor is lower than the preset intake air temperature, the monitoring unit controls the mixing regulator to mix the uncooled intake air that does not flow through the heat exchanger from the temperature regulating pipe with the cooled intake air, thereby supplying it to the engine in a state of regulating the intake air temperature.

2. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler as described in claim 1, characterized in that, The monitoring unit includes a smoke detection sensor for measuring the amount of smoke emitted by the engine. Based on the amount of smoke measured by the smoke detection sensor, the intake air temperature measured by the exhaust temperature sensor is adjusted to a preset intake air temperature and supplied to the engine.

3. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler as described in claim 1, characterized in that, The mixing regulator includes an opening skirt that is in close contact with the inside of the temperature regulating pipe section. The opening is adjusted by sliding the pipe outlet inside the intercooler to discharge uncooled intake air into the intercooler.

4. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler as described in claim 3, characterized in that, The mixing regulator includes an intake nozzle cover with a diameter that gradually decreases from the opening skirt toward the intake outlet. As the flow rate of the cooled intake air flowing through the heat exchanger increases, an intake pressure for mixing is provided by drawing in uncooled intake air supplied to the periphery of the opening skirt.

5. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to claim 1, characterized in that, The mixing regulator includes mixing blades formed on the outer periphery of the mixing regulator, which improve the mixing between uncooled intake air flowing into the outer surface of the mixing regulator and cooled intake air flowing through the interior of the mixing regulator by generating vortices in the uncooled intake air flowing into the outer surface of the mixing regulator.

6. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to claim 1, characterized in that, The mixing regulator includes a regulator drive unit for driving the mixing regulator in the intercooler to slide, thereby adjusting the supply of uncooled intake air by sliding the mixing regulator according to the intake air temperature measured by the discharge temperature sensor.

7. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to claim 1, characterized in that, The intercooler includes a hydrogen supply unit that supplies hydrogen to the interior of the intercooler for the purpose of reducing smoke from the intake air supplied to the engine through the intake and exhaust ports.

8. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to claim 7, characterized in that, The monitoring unit includes a start-up control unit for controlling the start-up of the engine. In order to reduce the smoke generated when the engine is initially started, the hydrogen supply unit pre-supplyes hydrogen to the intercooler before starting the engine.

9. The IoT-based environmentally friendly biogas generator monitoring system with an adjustable intake air temperature intercooler according to claim 8, characterized in that, The start control unit causes the operation of the start unit for starting the engine to be delayed compared to the operation of the hydrogen supply valve, so that when a start signal for starting the engine is generated, the start unit operates after the hydrogen supply valve of the hydrogen supply unit is opened.

10. A monitoring method, performed by an Internet of Things-based environmentally friendly biogas generator monitoring system with an intercooler having an adjustable intake air temperature, the system comprising: An engine, driven by a supply of biogas; a power generation device, driven by the engine, for generating electricity; An intercooler, located in the engine, is used to cool the intake air; and a monitoring unit for controlling the intercooler, wherein, The intercooler includes: An exhaust temperature sensor is installed at the air inlet and outlet of the intercooler to measure the air inlet temperature; The temperature regulating piping section supplies uncooled intake air, bypassing the heat exchanger, based on the intake air temperature measured by the discharge temperature sensor; and The mixing regulator, as it slides inside the intercooler toward the intake direction, adjusts the supply of uncooled intake air via the temperature regulating pipe section. The monitoring unit performs the following steps: This allows the exhaust temperature sensor to measure the intake air temperature toward the engine; If the intake air temperature measured by the exhaust temperature sensor is lower than the preset intake air temperature, the temperature regulating pipe section is opened by controlling the mixing regulator; and This allows the cooled intake air flowing through the heat exchanger due to the opening of the temperature regulating duct to mix with the uncooled intake air that does not flow through the heat exchanger from the temperature regulating duct and then supply it to the engine.

11. The monitoring method according to claim 10, characterized in that, The monitoring unit includes a smoke detection sensor for measuring the amount of smoke emitted by the engine. The monitoring unit performs the following steps: This enables the smoke detection sensor to measure the amount of smoke; and Based on the amount of smoke measured by the smoke detection sensor, the intake air temperature measured by the exhaust temperature sensor is adjusted to a preset intake air temperature and supplied to the engine.

12. The monitoring method according to claim 10, characterized in that, The mixing regulator includes an opening skirt that is in close contact with the inside of the temperature regulating pipe section. The opening is adjusted by sliding the pipe outlet inside the intercooler to discharge uncooled intake air into the intercooler.

13. The monitoring method according to claim 11, characterized in that, The mixing regulator includes an intake nozzle cover with a diameter that gradually decreases from the opening skirt toward the intake outlet. As the flow rate of the cooled intake air flowing through the heat exchanger increases, an intake pressure for mixing is provided by drawing in uncooled intake air supplied to the periphery of the opening skirt.

14. The monitoring method according to claim 10, characterized in that, The mixing regulator includes mixing blades formed on the outer periphery of the mixing regulator, which improve the mixing between uncooled intake air flowing into the outer surface of the mixing regulator and cooled intake air flowing through the interior of the mixing regulator by generating vortices in the uncooled intake air flowing into the outer surface of the mixing regulator.

15. The monitoring method according to claim 10, characterized in that, The mixing regulator includes a regulator drive unit for driving the mixing regulator in the intercooler to slide, thereby adjusting the supply of uncooled intake air by sliding the mixing regulator according to the intake air temperature measured by the discharge temperature sensor.

16. The monitoring method according to claim 10, characterized in that, The intercooler includes a hydrogen supply unit that supplies hydrogen to the interior of the intercooler for the purpose of reducing smoke from the intake air supplied to the engine through the intake and exhaust ports.

17. The monitoring method according to claim 16, characterized in that, The monitoring unit includes a start-up control unit for controlling the start-up of the engine. In order to reduce the smoke generated when the engine is initially started, the hydrogen supply unit pre-supplyes hydrogen to the intercooler before starting the engine.

18. The monitoring method according to claim 16, characterized in that, The startup control unit performs the following steps: Receive a start signal for starting the engine; Upon receiving the start signal, hydrogen is supplied to the intercooler by opening the hydrogen supply valve; and After the hydrogen supply valve is opened, the starter unit for starting the engine is activated.

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