Containerized diesel generator set and method for silencing a generator set

Abstract

This invention belongs to the field of generator sets, specifically a containerized diesel generator set and a method for quieting the generator set, including an electric generator set; the quiet containerized data center diesel generator set also includes a first compartment and a second compartment; the first compartment has a connected generator compartment, an air intake compartment and an exhaust compartment, the electric generator set is fixedly installed in the generator compartment, and a cooling fan is fixedly installed in the exhaust compartment; the second compartment has a heat dissipation compartment and a flue gas treatment compartment; relying on the above-mentioned modular stacked design, it can be prefabricated in the factory in advance, with a short construction period, convenient combination and use, and at the same time, the overall structure is compact, the whole system occupies only about 50 square meters, which greatly saves the machine room space, saves construction costs, and realizes the stacked arrangement of high-power kVA 5-15kVA units and their auxiliary components, saving space and pipeline length.

Description

Technical Field

[0001] This invention relates to the field of generator sets, specifically a containerized diesel generator set and a method for quieting the generator set. Background Technology

[0002] With the development of digital transformation of the global real economy, a large amount of data will be generated in this process. How to make full use of the value of this data depends on data centers with storage, computing and operational capabilities.

[0003] Data is a fundamental production factor in the digital economy era and the underlying support for smart city management and industrial digitalization. The effective storage, flow, and utilization of this data depends on the operation of data centers. Large-scale data centers are developing rapidly, leading to a surge in electricity demand, including an increasing scale of emergency power supplies. The application of high-power generators is becoming more widespread, and diesel power plants with several or even dozens of generator units have become the choice for many data centers. The design and construction of diesel power plants must consider how to prefabricate, compactly arrange, and easily maintain multiple generator units, and how to quickly complete the associated electronic and electrical installations, facility transportation, and on-site wiring. High-power diesel generator sets generate significant noise during operation, impacting the surrounding environment. Furthermore, their large size necessitates the installation of oversized containers, leading to manufacturing and transportation difficulties and increased installation space requirements. Therefore, this paper proposes a containerized diesel generator set and a method for reducing its noise. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a containerized diesel generator set and a method for quieting the generator set.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: The containerized diesel generator set of the present invention includes an electric generator set; the silent containerized data center diesel generator set further includes a first compartment and a second compartment; the first compartment is provided with a generator compartment, an air intake compartment and an exhaust compartment connected to each other, the electric generator set is fixedly installed in the generator compartment, and a cooling fan is fixedly installed in the exhaust compartment; the second compartment has a heat dissipation compartment and a flue gas treatment compartment; a remote radiator is fixedly installed in the heat dissipation compartment, the remote radiator is connected to the cooling pipe of the electric generator set through a pipe, and a flue gas treatment module is fixedly installed in the flue gas treatment compartment, the flue gas treatment module is connected to the exhaust pipe of the electric generator set through a flue pipe.

[0006] Preferably, an air intake noise reduction device is fixedly connected inside the air intake chamber. The air intake noise reduction device has an air intake channel inside. Several sets of first blades and several sets of second blades are fixedly connected inside the air intake channel. The first blades and second blades are arranged vertically.

[0007] Preferably, both the first blade and the second blade are inclined, with the first blade having an angle of 5-15° with the bottom wall and the second blade having an angle of 5-15° with the side wall of the air intake channel.

[0008] Preferably, an exhaust muffler is fixedly installed in the exhaust chamber, and several third blades are fixedly connected inside the exhaust muffler. The end of the third blades near the electric generator set is inclined, and several exhaust channels are formed inside the exhaust muffler through the third blades.

[0009] Preferably, the flue gas treatment module includes a flue gas purification unit and a flue gas silencer. The flue gas purification unit is connected to the exhaust pipe of the electric generator set through a flue pipe, and the flue gas silencer is connected to the output end of the flue gas purification unit.

[0010] Preferably, the output end of the flue gas silencer is fixedly connected to an anti-backdraft mechanism, which extends to the outside of the flue gas treatment chamber.

[0011] Preferably, a fuel cooler is fixedly installed in the heat dissipation compartment, and a fuel tank is fixedly installed in the generator compartment. The fuel tank is connected to the fuel cooler and the fuel pipeline of the electric generator set through a pipeline.

[0012] Preferably, the top of the heat dissipation chamber is provided with a heat dissipation vent, and both sides of the heat dissipation chamber are fixedly installed with first louvers.

[0013] Preferably, the sides of both the air intake chamber and the exhaust chamber are fixedly connected with a second louver and a rodent-proof mesh.

[0014] A method for quieting a generator set, applicable to the aforementioned containerized diesel generator set, the method comprising: configuring an air intake noise reducer in the air intake compartment, wherein the air intake channel of the air intake noise reducer is separated by a number of first blades and a number of second blades to form a multi-stage deflection noise reduction structure, so that the intake airflow passes smoothly along a preset path, thereby reducing airflow disturbance and eddy noise.

[0015] The advantages of this invention are: 1. This invention, by setting up a first compartment and a second compartment, which are vertically stacked during installation and connected by connecting various pipes, completes a silent containerized data center diesel generator set. Both the first and second compartments are containerized structures. Relying on the above-mentioned modular stacking design, it can be prefabricated in the factory in advance, with a short construction period and convenient combination and use. At the same time, the overall structure is compact, and the whole system occupies only about 50 square meters, which greatly saves the computer room space and construction costs. It realizes the stacking arrangement of high-power kVA 5-15kVA units and their auxiliary components, saving space and pipeline length. 2. This invention, by setting up an air intake noise reducer and an exhaust silencer, uses the blade structure inside the air intake noise reducer to divide the air intake channel into a labyrinthine channel noise reduction structure. This reduces operating noise while ensuring air intake volume. Combined with the exhaust silencer, this can significantly attenuate noise energy and effectively reduce the operating noise of the electric generator set. When used with the air intake noise reducer, the overall noise can be reduced by more than 35 dBA. 3. In this application, the angle between the first blade and the bottom wall is preferably 8°, and the angle between the second blade and the side wall of the air intake channel is preferably 8°. In use, this angle design ensures smooth airflow while effectively reducing the mid-to-high frequency noise generated by airflow impact, improving the overall quietness performance, and preventing rainwater from drifting in with the wind. Compared with the conventional large-angle blade structure, it can effectively reduce wind resistance by 30% and greatly improve air intake efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the first and second compartments of the present invention; Figure 2 This is a schematic cross-sectional view of the top of the first cabin of the present invention; Figure 3 This is a schematic cross-sectional view of the top of the second cabin of the present invention; Figure 4 This is a schematic diagram of the external structure of the first and second hulls.

[0018] In the diagram: 11. First compartment; 12. Second compartment; 13. Electric generator set; 131. Generator compartment; 14. Air intake compartment; 15. Exhaust compartment; 16. Flue gas treatment compartment; 17. Heat dissipation compartment; 18. Remote radiator; 19. Cooling fan; 21. Air intake noise reducer; 22. Air intake passage; 23. First blade; 24. Second blade; 31. Exhaust silencer; 32. Third blade; 33. Exhaust passage; 41. Flue gas purification unit; 42. Flue gas silencer; 51. Anti-backdraft mechanism; 61. Fuel tank; 62. Fuel cooler; 71. Heat dissipation vent; 72. First louver; 81. Second louver; 82. Rodent-proof mesh. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Specific implementation examples are given below.

[0021] Please see Figure 1-4 As shown, a containerized diesel generator set includes an electric generator set 13; the silent containerized data center diesel generator set also includes a first compartment 11 and a second compartment 12; the first compartment 11 has a generator compartment 131, an air intake compartment 14 and an exhaust compartment 15 connected to each other, the electric generator set 13 is fixedly installed in the generator compartment 131, and a cooling fan 19 is fixedly installed in the exhaust compartment 15; the second compartment 12 has a heat dissipation compartment 17 and a flue gas treatment compartment 16 inside; a remote radiator 18 is fixedly installed in the heat dissipation compartment 17, and the remote radiator 18 is connected to the cooling pipe of the electric generator set 13 through a pipe; a flue gas treatment module is fixedly installed in the flue gas treatment compartment 16, and the flue gas treatment module is connected to the exhaust pipe of the electric generator set 13 through a flue pipe.

[0022] During installation, the first compartment 11 and the second compartment 12 are stacked vertically and the pipes are connected to complete the silent containerized data center diesel generator set. The first compartment 11 and the second compartment 12 are both container structures. Relying on the above-mentioned modular stacking design, the factory can be prefabricated in advance, the construction period is short, and it is convenient to combine and use. At the same time, the overall structure is compact, and the whole system occupies an area of ​​only about 50 square meters, which greatly saves the computer room space and construction costs. It realizes the stacking arrangement of high-power 3300kVA-4000kVA units and their auxiliary components, saving space and pipeline length. During use, the cooling fan in the exhaust chamber 15 drives the airflow to be discharged from the side of the exhaust chamber 15, and the cold air outside is drawn into the generator chamber 131 from the side of the intake chamber 14, thereby achieving heat dissipation of the electric generator set 13 and ensuring the continuous and stable operation of the unit. The remote radiator 18 inside the second chamber 12 is connected to the cooling water circuit of the electric generator set 13 through a pipe for water cooling of the electric generator set 13. The flue gas treatment module and the exhaust pipe of the electric generator set 13 are connected through a flue pipe, and the flue gas generated by the electric generator set 13 is discharged after passing through the flue gas treatment module. Electric generator set 13 is a 3300kVA-4000 kVA diesel generator set. The bottom of the hull is equipped with five DN40 flange joints, which are connected to the internal fuel oil system. There are two maintenance doors on each side.

[0023] Furthermore, such as Figure 1-4 As shown, an air intake noise reduction device 21 is fixedly connected inside the air intake chamber 14. An air intake channel 22 is provided inside the air intake channel 22. Several sets of first blades 23 and several sets of second blades 24 are fixedly connected inside the air intake channel 22. The first blades 23 and the second blades 24 are arranged vertically. When in use, the air intake noise reducer 21 effectively reduces airflow noise through a double-layer inclined blade structure. The first blade 23 and the second blade 24 are vertically arranged in space, forming a grid labyrinth noise reduction structure, thereby reducing operating noise while ensuring air intake volume.

[0024] Furthermore, such as Figure 1-4 As shown, the first blade 23 and the second blade 24 are both inclined. The first blade 23 has an angle of 5-15° with the bottom wall, and the second blade 24 has an angle of 5-15° with the side wall of the air intake channel 22. In this application, the first blade 23 has an angle of 5-15° with the bottom wall, preferably 8°, and the second blade 24 has an angle of 5-15° with the side wall of the air intake channel 22, preferably 8°. In use, this angle design ensures smooth airflow while effectively reducing the mid-to-high frequency noise generated by airflow impact, improving overall quietness, and preventing rainwater from drifting in with the wind. Compared with conventional large-angle blade structures, it can effectively reduce wind resistance by 30% and significantly improve air intake efficiency.

[0025] Furthermore, such as Figure 1-4As shown, an exhaust muffler 31 is fixedly installed in the exhaust chamber 15. Several third blades 32 are fixedly connected inside the exhaust muffler 31. The third blades 32 are inclined at one end near the electric generator set 13. Several exhaust channels 33 are formed inside the exhaust muffler 31 through the third blades 32. When in use, the exhaust muffler 31 guides the airflow along a tortuous path through the inclined third blade 32, effectively extending the airflow path and increasing turbulent dissipation, significantly attenuating exhaust noise energy, and can effectively reduce the noise of the electric generator set 13. When used in conjunction with the air intake noise reducer 21, it can reduce the overall noise by more than 35 dBA.

[0026] Furthermore, such as Figure 1-4 As shown, the flue gas treatment module includes a flue gas purification unit 41 and a flue gas silencer 42. The flue gas purification unit 41 is connected to the exhaust pipe of the electric generator set 13 through a flue pipe, and the flue gas silencer 42 is connected to the output end of the flue gas purification unit 41. In use, the flue gas purification unit 41 is used to remove harmful substances in the flue gas, such as nitrogen oxides, particulate matter and unburned hydrocarbons; the flue gas silencer 42 further reduces the noise of the exhaust airflow, reduces the overall noise level of the operating environment of the equipment, and ensures that it meets the stringent requirements of data centers for low noise and high environmental protection standards.

[0027] Furthermore, such as Figure 1-4 As shown, the output end of the flue gas silencer 42 is fixedly connected to an anti-backdraft mechanism 51, which extends to the outside of the flue gas treatment chamber 16. When in use, the anti-backwind mechanism 51 effectively blocks the backflow of strong external wind through the one-way valve structure, avoiding the problem of reduced engine power output caused by increased back pressure in headwind environments.

[0028] Furthermore, such as Figure 1-4 As shown, a fuel cooler 62 is fixedly installed in the heat dissipation compartment 17, and a fuel tank 61 is fixedly installed in the generator compartment 131. The fuel tank 61 is connected to the fuel cooler 62 and the fuel pipeline of the electric generator set 13 through a pipeline. During use, the generator compartment 131 also integrates an oil tank 61, which transports fuel to the generator set through pipelines. During the transportation process, the fuel cooler 62 regulates the temperature to ensure a stable supply of fuel under suitable operating conditions, thereby improving combustion efficiency and operational reliability.

[0029] Furthermore, such as Figure 1-4 As shown, the top of the heat dissipation chamber 17 is provided with a heat dissipation vent 71, and the two sides of the heat dissipation chamber 17 are fixedly installed with first louvers 72. In use, by opening the heat dissipation vent 71 at the top of the heat dissipation chamber 17, the impact of hot air from side heat dissipation on surrounding facilities can be avoided, while the principle of natural rise of hot air is used to achieve efficient heat dissipation; the first louvers 72 on both sides take into account both air intake and rain protection functions.

[0030] Furthermore, such as Figure 1-4 As shown, the first cabin 11 is equipped with a high-voltage switch cabinet, a monitoring cabinet, a dummy load control module, a DC power distribution module, and an AC auxiliary power supply module; a smoke detector and a temperature detector electrically connected to the monitoring cabinet are fixedly installed inside the first cabin 11.

[0031] During use, the monitoring cabinet collects the sensor signals from the smoke detector and temperature detector in real time to monitor the internal operating status of the diesel generator set. The high-voltage switch cabinet, dummy load control module, and DC power distribution module are used to ensure the circuit stability and emergency response capability of the generator set, ensuring that critical loads can still be continuously powered under sudden working conditions. The AC auxiliary power module is used to independently provide auxiliary power to the electrical equipment of the diesel generator set.

[0032] Furthermore, such as Figure 1-4 As shown, the side ends of the air intake chamber 14 and the exhaust chamber 15 are both fixed with a second louver 81 and a rodent-proof net 82. When in use, the second louver 81 and the rodent-proof net 82 work together to ensure the ventilation needs of the cabin, while effectively preventing small animals from entering and causing short circuits or equipment damage.

[0033] A method for quieting a generator set, applicable to the aforementioned containerized diesel generator set, the method comprising: configuring an air intake noise reducer in the air intake compartment, wherein the air intake channel of the air intake noise reducer is separated by a number of first blades and a number of second blades to form a multi-stage deflection noise reduction structure, so that the intake airflow passes smoothly along a preset path, thereby reducing airflow disturbance and eddy noise.

[0034] The working principle is as follows: During installation, the first compartment 11 and the second compartment 12 are vertically stacked, and all pipes are connected to complete the silent containerized data center diesel generator set. Both the first compartment 11 and the second compartment 12 are container-type structures. Relying on the aforementioned modular stacking design, factory prefabrication can be completed in advance, resulting in a short construction period and convenient combination for use. At the same time, the overall structure is compact, with the entire system occupying only about 50 square meters, greatly saving data center space and construction costs. This allows for the stacking arrangement of high-power 3300kVA-4000kVA units and their auxiliary components, saving space and piping length. During use… The cooling fan inside the exhaust compartment 15 drives airflow to exit from the side of the exhaust compartment 15, while external cold air is drawn into the generator compartment 131 from the side of the intake compartment 14, thereby achieving heat dissipation for the electric generator set 13 and ensuring continuous and stable operation of the unit. The remote radiator 18 inside the second compartment 12 is connected to the cooling water circuit of the electric generator set 13 through pipes for water cooling of the electric generator set 13. The flue gas treatment module and the exhaust pipe of the electric generator set 13 are connected through a flue pipe, and the flue gas generated by the electric generator set 13 is discharged after passing through the flue gas treatment module. The electric generator set 13 is a 3300kVA-4000 kVA diesel generator set. The bottom of the compartment is equipped with 5 DN40 flange joints, which are connected to the internal fuel oil circuit system. There are 2 maintenance doors on each side. When in use, the air intake noise reducer 21 effectively reduces airflow noise through a double-layer inclined blade structure. The first blade 23 and the second blade 24 are vertically arranged in space, forming a grid labyrinth noise reduction structure, thereby reducing operating noise while ensuring air intake. In this application, the first blade 23 has an angle of 5-15° with the bottom wall, preferably 8°, and the second blade 24 has an angle of 5-15° with the side wall of the air intake channel 22, preferably 8°. In use, this angle design ensures smooth airflow while effectively reducing the mid-to-high frequency noise generated by airflow impact, improving overall quietness, and preventing rainwater from drifting in with the wind. Compared with conventional large-angle blade structures, it can effectively reduce wind resistance by 30% and significantly improve air intake efficiency. In use, the exhaust muffler 31 guides the airflow along a tortuous path through the inclined third blade 32, effectively extending the airflow path and increasing turbulence dissipation, significantly attenuating exhaust noise energy, and effectively reducing the noise of the electric generator set 13. When used in conjunction with the air intake noise reducer 21, it can reduce the overall noise by more than 35 dBA. During operation, the flue gas purification unit 41 removes harmful substances from the flue gas, such as nitrogen oxides, particulate matter, and incompletely burned hydrocarbons. The flue gas silencer 42 further reduces the noise of the exhaust airflow, lowering the overall noise level of the operating environment and ensuring compliance with the stringent requirements of data centers for low noise and high environmental protection standards. During operation, the anti-backdraft mechanism 51 effectively blocks strong external wind backflow through a one-way valve structure, preventing backflow and thus avoiding the problem of reduced engine power output caused by increased back pressure in a headwind environment. During operation, the generator compartment 131 also integrates a fuel tank 61, which transports fuel to the generator set through pipelines. During the transportation process, the fuel cooler 62 regulates the temperature to ensure a stable fuel supply under suitable operating conditions, thereby improving combustion efficiency and operational reliability. During operation, by opening the heat dissipation vent 71 at the top of the heat dissipation compartment 17, the impact of lateral heat dissipation on surrounding facilities can be avoided, while utilizing the principle of natural rising of hot air to achieve efficient heat dissipation. The first louvers 72 on both sides serve both air intake and rain protection functions. During use, the monitoring cabinet collects sensor signals from smoke detectors and temperature detectors in real time to monitor the internal operating status of the diesel generator set. The high-voltage switchgear, dummy load control module, and DC power distribution module are used to ensure the circuit stability and emergency response capability of the generator set, ensuring that critical loads can still be continuously powered under sudden operating conditions. The AC auxiliary power module is used to independently provide auxiliary power to the electrical equipment of the diesel generator set. The second louver 81 and the rodent-proof mesh 82 work together to ensure the ventilation needs of the cabin and effectively prevent small animals from entering and causing short circuits or equipment damage.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A containerized diesel generator set, comprising an electric generator set (13); characterized in that: The silent containerized data center diesel generator set also includes a first compartment (11) and a second compartment (12); the first compartment (11) is provided with a generator compartment (131), an air intake compartment (14) and an exhaust compartment (15) that are connected to each other. The electric generator set (13) is fixedly installed in the generator compartment (131), and a cooling fan (19) is fixedly installed in the exhaust compartment (15). The second compartment (12) has a heat dissipation compartment (17) and a flue gas treatment compartment (16) inside. A remote radiator (18) is fixedly installed in the heat dissipation compartment (17). The remote radiator (18) is connected to the cooling pipe of the electric generator set (13) through a pipe. A flue gas treatment module is fixedly installed in the flue gas treatment compartment (16). The flue gas treatment module is connected to the exhaust pipe of the electric generator set (13) through a smoke pipe.

2. The containerized diesel generator set according to claim 1, characterized in that: An air intake noise reducer (21) is fixedly connected inside the air intake chamber (14). An air intake channel (22) is provided inside the air intake channel (22). Several sets of first blades (23) and several sets of second blades (24) are fixedly connected inside the air intake channel (22). The first blades (23) and the second blades (24) are arranged vertically.

3. A containerized diesel generator set according to claim 2, characterized in that: The first blade (23) and the second blade (24) are both inclined. The first blade (23) has an angle of 5-15° with the bottom wall, and the second blade (24) has an angle of 5-15° with the side wall of the air intake channel (22).

4. A containerized diesel generator set according to claim 2, characterized in that: An exhaust muffler (31) is fixedly installed inside the exhaust chamber (15). Several third blades (32) are fixedly connected inside the exhaust muffler (31). The third blades (32) are inclined at one end near the electric generator set (13). Several exhaust channels (33) are formed inside the exhaust muffler (31) through the third blades (32).

5. A containerized diesel generator set according to claim 1, characterized in that: The flue gas treatment module includes a flue gas purification unit (41) and a flue gas silencer (42). The flue gas purification unit (41) is connected to the exhaust pipe of the electric generator set (13) through a flue pipe, and the flue gas silencer (42) is connected to the output end of the flue gas purification unit (41).

6. A containerized diesel generator set according to claim 5, characterized in that: The output end of the flue gas silencer (42) is fixed with an anti-backdraft mechanism (51), which extends to the outside of the flue gas treatment chamber (16).

7. A containerized diesel generator set according to claim 1, characterized in that: A fuel cooler (62) is fixedly installed in the heat dissipation compartment (17), and a fuel tank (61) is fixedly installed in the generator compartment (131). The fuel tank (61) is connected to the fuel cooler (62) and the fuel pipeline of the electric generator set (13) through a pipeline.

8. A containerized diesel generator set according to claim 1, characterized in that: The top of the heat dissipation chamber (17) is provided with a heat dissipation vent (71), and the first louver (72) is fixedly installed on both sides of the heat dissipation chamber (17).

9. A containerized diesel generator set according to claim 1, characterized in that: The sides of the air intake chamber (14) and the exhaust chamber (15) are both fixed with a second louver (81) and a rodent-proof net (82).

10. A method for silencing a generator set, characterized in that: This method is applicable to the containerized diesel generator set as described in claim 4. The generator set noise reduction method includes: configuring an air intake noise reducer in the air intake compartment. The air intake channel of the air intake noise reducer is separated by a number of first blades and a number of second blades to form a multi-stage deflection noise reduction structure, so that the air intake airflow passes smoothly along a preset path, thereby reducing airflow disturbance and eddy noise.

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