Box-type diesel generating set

Abstract

The invention relates to the technical field of generator sets, in particular to a box-type diesel generator set which comprises a box body, the interior of the box body is hollow, an air inlet and an air outlet are formed in the two opposite side walls of the box body respectively, and a cable box and a water tank are arranged in the box body and close to the end where the air inlet is located. The cable box and the water tank are arranged on the two sides of a connecting line between the air inlet and the air outlet respectively. The invention further provides a box type diesel generating set which comprises a box body, the interior of the box body is hollow, exhaust ports are formed in the side walls of the box body, the two side walls, adjacent to the side walls, of the box body are each provided with a set of air inlets, and the cable box and the water tank are arranged in the box body and located between the two sets of air inlets. The box-type diesel generating set has the advantages of being smaller in radiation noise, better in heat dissipation effect and the like, can be used as a standby or temporary power supply in the communication field such as a data center and can also be used as a common or standby power supply in places such as islands and deserts.

Description

Technical Field

[0001] The invention relates to the technical field of generator sets, and in particular to a box-type diesel generator set. Background Art

[0002] With the rapid development of the Internet and information technology, the application of information systems has become increasingly widespread and their role has become increasingly important. As an important carrier of information systems, the data center industry has entered a stage of large-scale construction. As a carrier of data calculation, transmission and storage, the stability and reliability of the data center are very important. Therefore, the electrical facilities that match it have attracted people's attention and attention. In various emergencies, ensuring the energy supply of the data center is a key factor in ensuring the stability of the data center data. The containerized diesel generator set has the advantages of integration, modularization, low cost, easy mobility, and fast installation and startup. It is very suitable as a backup power supply under normal conditions and a temporary power supply under extreme conditions. It can ensure the stable operation of the data center at critical moments.

[0003] Diesel generator sets generate a lot of heat and high-decibel noise during operation, so containerized generator sets face heat dissipation and noise problems. In terms of heat dissipation, the heat generated by the generator set is mainly transferred through convection and radiation, and then discharged through convective heat exchange of the axial flow fan. Therefore, distributing the air volume of the cooling air duct of the unit in the narrow space of the container and optimizing the flow layout to reduce the flow dead zone are key steps to optimize the heat dissipation of the containerized generator set. In terms of noise, containerized generator sets are mainly faced with exhaust noise, intake and exhaust noise, structural vibration noise, etc. The exhaust noise generated by the diesel unit is mainly controlled by a special exhaust muffler, while the intake and exhaust noise can be directly radiated to the surrounding environment, and the vibration noise can also be transmitted to the surrounding environment through the intake and exhaust channels, so this part of the noise must be controlled to meet the relevant requirements.

[0004] In fact, the intake and exhaust noise of containerized generator sets, the radiation propagation of vibration noise, and the effective discharge of heat generated by the generator sets are often closely related to the flow inside the box driven by the axial flow fan. The three are interrelated and mutually constrained coupling relationships, but it is inevitable to consider one aspect and lose the other. The traditional containerized generator set design often cannot take into account both heat dissipation and noise. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a box-type diesel generator set with low noise and high heat dissipation efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a box-type diesel generator set, including a box body, the interior of the box body is hollow, and an air inlet and an exhaust port are respectively provided on two opposite side walls of the box body. A cable box and a water tank are arranged in the box body and close to the end where the air inlet is located. The cable box and the water tank are respectively arranged on both sides of the line between the air inlet and the exhaust port.

[0007] In an optional embodiment, an air intake silencer plate is provided at the air intake port, and an exhaust silencer plate is provided at the exhaust port.

[0008] In an optional embodiment, the cross-sectional shape of the air intake muffler plate is a "V" shape or a "W" shape, and the cross-sectional shape of the exhaust muffler plate is a "V" shape or a "W" shape.

[0009] In an optional embodiment, both the air intake muffler plate and the exhaust muffler plate are filled with rock wool.

[0010] In an optional embodiment, the inner cavity of the box body includes a main chamber and an exhaust chamber, the main chamber and the exhaust chamber are connected by a channel, the air inlet is arranged on the side wall of the main chamber, the exhaust port is arranged on the side wall of the exhaust chamber, and the cable box and the water tank are arranged in the main chamber.

[0011] In an optional embodiment, a diesel engine, a generator set body and a generator sub-box are arranged in the main chamber, the diesel engine is connected to the generator set body, and the generator set body is connected to the generator sub-box.

[0012] In an optional embodiment, a diesel engine exhaust pipe is provided in the main chamber, and the diesel engine exhaust pipe is connected to the diesel engine.

[0013] In an alternative embodiment, a lamp housing is provided in the main chamber.

[0014] In an optional embodiment, an axial flow fan is provided in the channel.

[0015] The present invention also provides a box-type diesel generator set, including a box body, the interior of the box body is hollow, an exhaust port is provided on the side wall of the box body, a group of air inlets are respectively provided on two side walls adjacent to the side wall, and a cable box and a water tank are arranged in the box body and located between the two groups of air inlets.

[0016] The beneficial effects of the present invention are as follows: in the traditional layout, the water tank and the cable box are arranged in the center, which has a great influence on the air flow. After the cooling airflow enters, it is diverted to both sides, resulting in insufficient cooling function for the diesel generator set behind it. In addition, this layout affects the size and structure of the air intake silencer plate, limiting its silencer capacity, so it needs to be adjusted. On the other hand, although the straight-in and straight-out design of the exhaust silencer plate takes into account the smoothness of the flow, it does not give full play to its resistance silencer performance, and it also needs further optimization. One way of the box-type diesel generator set of the present invention is to arrange the air intake and the exhaust port relatively, place the water tank and the cable box on both sides, and adjust their front and rear positions to avoid dead zones in the flow; another way is to adopt a side air intake structure, and when the side air intake position is far away from the end of the diesel generator set, the cable box and the water tank are arranged in the box body and located between the two sets of air intakes, the heat dissipation and noise reduction effects are the best. Compared with the traditional design, in order to achieve higher performance indicators and improve the core competitiveness of the product, the present invention comprehensively considers the flow, heat dissipation and noise issues, coordinates all aspects to optimize the flow and heat dissipation layout of the containerized generator set, and introduces structures such as wave plates to further control the radiated noise without affecting the flow performance, and conducts detailed flow, heat dissipation and acoustic calculations on the designed structure, fully proving the effect of the optimized structure. The box-type diesel generator set provided by the present invention has the advantages of lower radiated noise and better heat dissipation effect, and can be used as a backup or temporary power source in communication fields such as data centers, and can also be used in places such as islands and deserts as a common or backup power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a box-type diesel generator set according to Embodiment 1; Figure 2 Another structural schematic diagram of the box-type diesel generator set of the first embodiment; Figure 3 This is a structural schematic diagram of a box-type diesel generator set according to Embodiment 2; Figure 4 Another structural schematic diagram of the box-type diesel generator set of the second embodiment; Figure 5 It is a structural schematic diagram of the air intake silencer plate; Figure 6 It is a schematic diagram of the structure of the exhaust muffler; Figure 7 This is a schematic diagram of the heat dissipation airflow of the traditional layout; Figure 8 This is a schematic diagram of heat dissipation airflow in Embodiment 1; Fig. 9 It is a temperature diagram of the traditional layout; Fig.10 It is a temperature schematic diagram of Example 1; Fig.11This is a schematic diagram for noise comparison; Fig.12 It is a schematic diagram of the temperature flow lines of the generator set in the traditional layout; Fig.13 It is a schematic diagram of the temperature streamline of the generator set of the second embodiment; Fig.14 This is a schematic diagram of the temperature distribution of the generator set in the traditional layout; Fig.15 The temperature distribution diagram of the generator set in the second embodiment; Fig.16 This is a noise diagram of the traditional layout method; Fig.17 This is a noise schematic diagram of Example 2; Fig.18 Schematic diagram of the structure of the intake muffler plate and the exhaust muffler plate with different cross-sectional shapes; Description of labels: 1. Air inlet; 2. Cable box; 3. Air inlet silencer; 4. Water tank; 5. Generator sub-box; 6. Generator set; 7. Exhaust duct; 8. Diesel engine; 9. Axial fan; 10. Exhaust silencer; 11. Exhaust port; 12. Lampshade. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0019] Please refer to Figures 1 to 18 As shown, a box-type diesel generator set of the present invention includes a box body, the interior of the box body is hollow, and an air inlet and an exhaust port are respectively provided on two opposite side walls of the box body. A cable box and a water tank are arranged in the box body and close to the end where the air inlet is located, and the cable box and the water tank are respectively arranged on both sides of the line between the air inlet and the exhaust port.

[0020] From the above description, it can be seen that the beneficial effects of the present invention are: in the traditional layout, the water tank and the cable box are arranged in the center, which has a greater impact on the air intake circulation. After the cooling airflow enters, it is diverted to both sides, resulting in insufficient cooling function for the diesel generator set behind it, and this layout affects the size and structure of the air intake muffler, limiting its muffler ability, so it needs to be adjusted. On the other hand, although the straight-in and straight-out design of the exhaust muffler takes into account the smoothness of the flow, it does not give full play to its resistance and muffler performance, and it also needs further optimization. One way of the box-type diesel generator set of the present invention is to set the air inlet and the exhaust port relative to each other, and to place the water tank and the cable box on both sides, and adjust their front and rear positions to avoid flow dead zones; another way is to adopt a side air intake structure, and when the side air intake position is far away from the end of the diesel generator set, the cable box and the water tank are arranged in the box and located between the two sets of air inlets, the heat dissipation and noise reduction effects are the best. Compared with the traditional design, in order to achieve higher performance indicators and improve the core competitiveness of the product, the present invention comprehensively considers the flow, heat dissipation and noise issues, coordinates all aspects to optimize the flow and heat dissipation layout of the containerized generator set, and introduces structures such as wave plates to further control the radiated noise without affecting the flow performance, and conducts detailed flow, heat dissipation and acoustic calculations on the designed structure, fully proving the effect of the optimized structure. The box-type diesel generator set provided by the present invention has the advantages of lower radiated noise and better heat dissipation effect, and can be used as a backup or temporary power source in communication fields such as data centers, and can also be used in places such as islands and deserts as a common or backup power source.

[0021] Furthermore, an air intake silencer plate is provided at the air intake port, and an exhaust silencer plate is provided at the exhaust port.

[0022] Furthermore, the cross-sectional shape of the air intake muffler plate is a "V" shape or a "W" shape, and the cross-sectional shape of the exhaust muffler plate is a "V" shape or a "W" shape.

[0023] From the above description, it can be seen that adjusting the intake muffler plate to a "V"-shaped or "W"-shaped structure and adjusting the exhaust muffler plate to a "V"-shaped or "W"-shaped wave structure can take into account both the flow smoothness and the noise reduction effect without affecting the flow smoothness, thereby enhancing its resistance to noise reduction performance.

[0024] Furthermore, both the air intake muffler plate and the exhaust muffler plate are filled with rock wool.

[0025] From the above description, it can be seen that filling the muffler plate with porous materials such as rock wool enhances the resistive muffler capability.

[0026] Furthermore, the inner cavity of the box body includes a main chamber and an exhaust chamber, the main chamber and the exhaust chamber are connected by a channel, the air inlet is arranged on the side wall of the main chamber, the exhaust port is arranged on the side wall of the exhaust chamber, and the cable box and the water tank are arranged in the main chamber.

[0027] Furthermore, a diesel engine, a generator set body and a generator sub-box are arranged in the main chamber, the diesel engine is connected to the generator set body, and the generator set body is connected to the generator sub-box.

[0028] Furthermore, a diesel engine exhaust pipe is provided in the main chamber, and the diesel engine exhaust pipe is connected to the diesel engine.

[0029] Furthermore, a lampshade is provided in the main chamber.

[0030] Furthermore, an axial flow fan is provided in the channel.

[0031] A box-type diesel generator set comprises a box body, the interior of the box body is hollow, exhaust ports are arranged on the side walls of the box body, a group of air inlets are respectively arranged on two side walls adjacent to the side walls, a cable box and a water tank are arranged in the box body and are located between the two groups of air inlets.

[0032] From the above description, it can be seen that the beneficial effects of the present invention are: in the traditional layout, the water tank and the cable box are arranged in the center, which has a greater impact on the air intake circulation. After the cooling airflow enters, it is diverted to both sides, resulting in insufficient cooling function for the diesel generator set behind it, and this layout affects the size and structure of the air intake muffler, limiting its muffler ability, so it needs to be adjusted. On the other hand, although the straight-in and straight-out design of the exhaust muffler takes into account the smoothness of the flow, it does not give full play to its resistance and muffler performance, and it also needs further optimization. One way of the box-type diesel generator set of the present invention is to set the air inlet and the exhaust port relative to each other, and to place the water tank and the cable box on both sides, and adjust their front and rear positions to avoid flow dead zones; another way is to adopt a side air intake structure, and when the side air intake position is far away from the end of the diesel generator set, the cable box and the water tank are arranged in the box and located between the two sets of air inlets, the heat dissipation and noise reduction effects are the best. Compared with the traditional design, in order to achieve higher performance indicators and improve the core competitiveness of the product, the present invention comprehensively considers the flow, heat dissipation and noise issues, coordinates all aspects to optimize the flow and heat dissipation layout of the containerized generator set, and introduces structures such as wave plates to further control the radiated noise without affecting the flow performance, and conducts detailed flow, heat dissipation and acoustic calculations on the designed structure, fully proving the effect of the optimized structure. The box-type diesel generator set provided by the present invention has the advantages of lower radiated noise and better heat dissipation effect, and can be used as a backup or temporary power source in communication fields such as data centers, and can also be used in places such as islands and deserts as a common or backup power source.

[0033] The air intake and exhaust methods of the present invention include side air intake and front air intake, and the accompanying silencer plate structure and layout. Different air intake methods will result in different flow patterns in the container, and the heat dissipation effect and acoustic radiation effect will change accordingly. The accompanying air intake and exhaust silencer plates take into account flow smoothness, heat dissipation and acoustic effects, and consider dust and rain protection functions.

[0034] Please refer to Figures 1 to 18 As shown, the first embodiment of the present invention is: a box-type diesel generator set, including a box body, the interior of the box body is hollow, and an air inlet and an exhaust port are respectively provided on two opposite side walls of the box body. A cable box and a water tank are arranged in the box body and close to the end where the air inlet is located, and the cable box and the water tank are respectively arranged on both sides of the line between the air inlet and the exhaust port.

[0035] An air intake silencer is provided at the air intake port, and an exhaust silencer is provided at the exhaust port. The cross-sectional shape of the air intake silencer is "V"-shaped or "W"-shaped, and the cross-sectional shape of the exhaust silencer is "V"-shaped or "W"-shaped. Both the air intake silencer and the exhaust silencer are filled with rock wool. The inner cavity of the box body includes a main chamber and an exhaust chamber, and the main chamber and the exhaust chamber are connected by a channel. The air intake port is arranged on the side wall of the main chamber, the exhaust port is arranged on the side wall of the exhaust chamber, and the cable box and the water tank are arranged in the main chamber. A diesel engine, a generator set body and a generator sub-box are arranged in the main chamber, and the diesel engine is connected to the generator set body, and the generator set body is connected to the generator sub-box. A diesel engine exhaust pipe is arranged in the main chamber, and the diesel engine exhaust pipe is connected to the diesel engine. A lampshade is arranged in the main chamber. An axial flow fan is arranged in the channel.

[0036] refer to Figures 7 to 11 , the overall flow, heat dissipation and acoustic effects of the containerized generator set under the above layout were numerically simulated. After the change, the overall flow became smoother, which was conducive to heat dissipation, the dead zone of flow near the generator set was reduced, and the cooling wind could cover the surface in all directions, improving the heat dissipation capacity. On the other hand, the smoothness of the flow weakened the vortex behavior in the field, suppressed the turbulence of the flow field, and thus reduced the internal airflow noise. Assisted by the anti-resistance composite silencing effect of the intake and exhaust silencers, the intake and exhaust noise can be further reduced. Please refer to Figures 1 to 18 As shown, the difference between the second embodiment of the present invention and the first embodiment is that an exhaust port is provided on the side wall of the box body, a group of air inlets are respectively provided on two side walls adjacent to the side wall, and the cable box and the water tank are arranged in the box body and located between the two groups of air inlets.

[0037] refer to Figures 12 to 18For the side air intake layout, similar to the above situation, the overall flow, heat dissipation and acoustic effects of the containerized generator set were numerically simulated. The side air intake optimizes the smoothness of the flow inside the container. The smoothness of the overall flow reduces the internal aerodynamic noise, and the sound source term of the noise propagating outward is reduced; the smooth flow near the diesel engine and generator reduces the flow dead zone and enhances heat dissipation. The overall temperature distribution of the generator set is reduced, and the highest temperature drops from 339.6 K to 319.8 K, indicating that the heat dissipation effect is improved.

[0038] In terms of noise, the highest sound power level in the stadium dropped from 108.8 dB to 82.9 dB after the modification, proving that the modified structure has smoother flow, weakened turbulence factors such as vortices, and reduced aerodynamic noise in the stadium. With the help of the noise reduction of the muffler structure, the exhaust noise is further reduced.

[0039] In summary, one way of the box-type diesel generator set of the present invention is to set the air inlet and the exhaust port relatively, place the water tank and the cable box on both sides, and adjust their front and rear positions to avoid the flow dead zone; another way is to adopt a side air intake structure, and when the side air intake position is far away from the end of the diesel generator set, the cable box and the water tank are arranged in the box and located between the two sets of air inlets, the heat dissipation and noise reduction effects are the best. Compared with the traditional design, in order to achieve higher performance indicators and improve the core competitiveness of the product, the present invention comprehensively considers the flow, heat dissipation and noise issues, comprehensively optimizes the flow heat dissipation layout of the container-type generator set, and introduces structures such as wave plates to further control the radiation noise without affecting the flow performance, and the designed structure is exhaustively calculated for flow, heat dissipation, and acoustics, which fully proves the effect of the optimized structure. The box-type diesel generator set provided by the present invention has the advantages of less radiation noise and better heat dissipation effect. It can be used as a backup or temporary power supply in the communication field such as data centers, and can also be used in places such as islands and deserts as a common or backup power supply.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A box-type diesel generator set, characterized in that: It includes a box body, which is hollow inside. An air inlet and an exhaust port are respectively arranged on two opposite side walls of the box body. A cable box and a water tank are arranged in the box body and close to the end where the air inlet is located. The cable box and the water tank are respectively arranged on both sides of the line between the air inlet and the exhaust port.

2. The box-type diesel generator set according to claim 1, characterized in that: An air intake silencer plate is provided at the air intake port, and an exhaust silencer plate is provided at the exhaust port.

3. The box-type diesel generator set according to claim 2, characterized in that: The cross-sectional shape of the air intake muffler plate is "V"-shaped or "W"-shaped, and the cross-sectional shape of the exhaust muffler plate is "V"-shaped or "W"-shaped.

4. The box-type diesel generator set according to claim 3 is characterized in that: The air intake muffler plate and the exhaust muffler plate are filled with rock wool.

5. The box-type diesel generator set according to claim 1, characterized in that: The inner cavity of the box body includes a main cavity and an exhaust cavity, which are connected by a channel, an air inlet is arranged on the side wall of the main cavity, an exhaust port is arranged on the side wall of the exhaust cavity, and a cable box and a water tank are arranged in the main cavity.

6. The box-type diesel generator set according to claim 5, characterized in that: A diesel engine, a generator set body and a generator sub-box are arranged in the main chamber. The diesel engine is connected to the generator set body, and the generator set body is connected to the generator sub-box.

7. The box-type diesel generator set according to claim 6, characterized in that: A diesel engine exhaust pipe is arranged in the main chamber, and the diesel engine exhaust pipe is connected to the diesel engine.

8. The box-type diesel generator set according to claim 5, characterized in that: A lampshade is provided in the main chamber.

9. The box-type diesel generator set according to claim 5, characterized in that: An axial flow fan is arranged in the channel.

10. A box-type diesel generator set, characterized in that: The box body comprises a hollow interior, an exhaust port is arranged on the side wall of the box body, a group of air inlets are respectively arranged on two side walls adjacent to the side wall, and a cable box and a water tank are arranged in the box body and located between the two groups of air inlets.

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