Environment-friendly diesel generator system and drilling machine

Abstract

The diesel generator system comprises a diesel generator, a silencing room is arranged outside the diesel generator, first silencing equipment communicated with the interior of the silencing room is arranged above the silencing room, and second silencing equipment communicated with a smoke outlet of the diesel generator is arranged above the silencing room. Third silencing equipment communicated with a diesel generator radiator is arranged on the side edge of the silencing room, horizontal inlet air of an air inlet of the first silencing equipment enters the silencing room through a draught fan, and the air outlet direction of an air outlet of the second silencing equipment and the air outlet direction of an air outlet of the third silencing equipment are both consistent with the air inlet direction of the first silencing equipment. According to the utility model, on the basis of solving the problem of comprehensive noise reduction of the diesel generator, the requirements of the diesel generator on air intake and heat dissipation in the operation process are fully considered, so that other requirements of the diesel generator are not influenced on the premise of ensuring the noise reduction of the diesel generator.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas drilling rig technology, and in particular to an environmentally friendly diesel generator system and drilling rig. Background Technology

[0002] The world is currently entering a period of green industrial revolution. The oil and gas drilling and extraction industry is facing increasingly stringent requirements for ecological and environmental protection. Oil and gas resources have been discovered in increasingly vast areas around the world, including many nature reserves, forest parks, and densely populated areas. With economic development, these resources are also being included in the development plans of governments worldwide. However, current conventional drilling rig designs do not consider issues such as low-carbon environmental protection and animal-friendly practices, nor do they adequately account for the environmental and ecological impacts and damage caused by noise.

[0003] A new study published in *Nature* on November 11, 2020, shows that light has a significant impact on birds. Like humans, some birds are active during the day and rest at night, while others rest during the day and forage at night. Strong light sources at night can severely affect birds' sleep, foraging, development, and courtship, causing them to exhibit a range of abnormal behaviors such as agitation and restless movements. Furthermore, numerous experiments have demonstrated that the color and distance of light also have a significant impact on birds.

[0004] Drilling involves extremely large machinery, operates over vast areas, and requires 24-hour operation with very strong lighting. Oil and gas extraction in nature reserves, forest parks, and other areas frequented by birds can severely impact and damage the habitats, breeding grounds, and survival of birds and other animals. Therefore, developing animal-friendly drilling rigs is essential.

[0005] Noise is also a form of environmental pollution. The effects of noise on the human body are multifaceted, primarily affecting hearing. Noise levels above 70 dB(A) are harmful to health. Prolonged exposure to strong noise can lead to hearing loss, dulled hearing, and even noise-induced deafness. Noise not only disrupts normal work, interferes with sleep and conversation, but can also induce various diseases. Noise acts on the central nervous system, causing imbalances in the excitation and inhibition functions of the cerebral cortex, leading to abnormal conditioned reflexes. This can cause dizziness, slowed reaction time, difficulty concentrating, and memory loss, and is a root cause of various accidents.

[0006] The effects of noise on animals include physiological effects and changes in animal behavior. Physiologically, the increasing environmental noise negatively impacts the physiological systems of wild animals. Continuous noise stimulation leads to increased stress responses, placing animals in a state of tension and even triggering cardiovascular diseases. Furthermore, prolonged exposure to high-noise environments can impair hearing. Regarding behavioral changes, environmental noise interferes with the normal behaviors of wild animals. For example, high-intensity noise makes it difficult for birds to perform courtship and nest-building activities normally, thus affecting reproduction. For other animals, noise also interferes with their communication, foraging, and escape behaviors, thereby affecting the balance of the food chain.

[0007] There are many noise sources in oil drilling operations, including diesel generators, mud pumps, winches, hydraulic stations, air compressors, vibrating screens, sand pumps, agitators, water pumps, and oil pumps. Among these, the diesel generator is the noisiest and also the most difficult to control. If the noise reduction of the diesel generator is done well, reducing the noise of other equipment is relatively easier. With increasingly stringent national environmental protection requirements, drilling rig manufacturers are all striving to reduce drilling rig noise, and their methods are largely similar, mostly focusing on reducing the noise of the diesel generator, which is the noisiest component. This typically involves adding a muffler to the exhaust port and a simple muffler to the radiator fan. These mufflers are usually straight-through type, such as... Figure 1 As shown, the high-frequency noise reduction effect is poor, and the lack of an intake fan for the generator room results in significant noise leakage. The noise reduction effect is only a reduction of the diesel generator noise from 115 dB(A) to 90 dB(A). This noise reduction is not thorough and cannot meet the requirements for drilling operations in areas with high environmental protection requirements. These regulations mostly stipulate that noise levels outside the well site perimeter cannot exceed 55 dB(A), otherwise it will have a significant impact on surrounding animals (nature reserves, forest parks) and residents (densely populated areas). To achieve the noise level requirement of no more than 55 dB(A) outside the well site perimeter, the noise level outside the generator room cannot exceed 80 dB(A). Therefore, it is necessary to design a more thorough and effective noise reduction solution for the diesel generator room.

[0008] Against the backdrop of the national advocacy for "dual carbon" and the rapid development of digital information technologies such as big data and artificial intelligence, energy equipment is ushering in a new round of technological revolution. "Digital, intelligent, green, and low-carbon" are the inevitable requirements and trends for the development of energy equipment. Among oil drilling rigs, diesel generators have the greatest impact on low-carbon indicators. Therefore, treating the exhaust gases emitted by diesel generators and reducing the content of CO, HC, and particulate matter in the exhaust gases to reduce air pollution is a necessity of our time. Currently, the design of diesel generator rooms basically does not consider these measures. Therefore, it is essential to invent a green, low-carbon, and quiet generator room that effectively reduces noise and air pollution. Summary of the Invention

[0009] The purpose of this utility model is to provide an environmentally friendly diesel generator system and drilling rig, which solves the problems of environmental pollution and noise caused by existing drilling rigs during operation.

[0010] This utility model is implemented as follows: an environmentally friendly diesel generator system includes a diesel generator, an external silencing chamber for the diesel generator, a first silencing device connected to the interior of the silencing chamber above the silencing chamber, a second silencing device connected to the exhaust port of the diesel generator above the silencing chamber, and a third silencing device connected to the radiator of the diesel generator on the side of the silencing chamber. The air inlet of the first silencing device receives horizontal air, which enters the silencing chamber through a fan. The air outlets of the second and third silencing devices are both aligned with the air inlet direction of the first silencing device.

[0011] There are many noise sources in oil drilling operations, including diesel generators, mud pumps, winches, hydraulic stations, air compressors, vibrating screens, sand pumps, agitators, water pumps, and oil pumps. Among them, diesel generators are the noisiest and the most difficult to control. If the noise reduction of diesel generators is done well, the noise reduction of other equipment is relatively easy. This invention addresses noise reduction for diesel generators. The generator is fully enclosed in a soundproof enclosure. However, considering the generator's need for air intake and heat dissipation, a first soundproofing device is installed on the top of the enclosure. This first device is connected to the interior of the enclosure via a fan, ensuring adequate air intake and noise reduction. Furthermore, its location at the top of the enclosure does not interfere with the connection between the generator and other equipment, making efficient use of space and facilitating transportation. The generator's exhaust gas is connected to a second soundproofing device via an upward-facing exhaust port. After passing through the second soundproofing device, the exhaust gas is discharged horizontally, preventing rainwater from entering the generator during operation. The generator generates heat during operation, and its radiator is connected to a third soundproofing device. This larger device, located at the end of the enclosure, is easy to install and better suits the generator's heat dissipation needs. Both the second and third soundproofing devices have horizontal exhaust directions, preventing interference and rainwater ingress. It can be seen that, based on solving the problem of overall noise reduction of diesel generators, this utility model fully considers the needs of diesel generators for air intake and heat dissipation during operation, thereby ensuring that the noise reduction of diesel generators does not affect other needs of diesel generators.

[0012] A further technical solution of this utility model is: the top of the anechoic chamber is provided with an opening, and the first anechoic device is connected to the interior of the anechoic chamber through a fan and the opening.

[0013] The large air intake area ensures the air intake needs of the diesel generator during operation.

[0014] A further technical solution of this utility model is: the second silencing device is connected to the exhaust port through a diesel particulate filter and a pipe.

[0015] When the exhaust gas containing carbon particles from a diesel generator passes through a diesel particulate filter, it can reduce the soot produced by the engine by more than 90%. This results in purified exhaust gas, reduced air pollution, and improved environmental performance.

[0016] DPF stands for Diesel Particulate Filter, also known as a diesel particulate filter or diesel generator particulate regenerator. The DPF works by trapping carbon particles in the black smoke emitted from a diesel engine through a dedicated exhaust pipe. These particles are adsorbed onto a filter made of metal fiber felt. This reduces engine soot production by over 90%. However, as carbon particles accumulate, the amount trapped inside the DPF increases, leading to higher exhaust resistance and impacting fuel consumption and power. To maintain optimal engine performance, the system automatically regenerates the DPF when particles reach a certain level, removing them through high-temperature combustion.

[0017] The DPF system is of great significance for purifying exhaust gases, reducing air pollution, and improving environmental performance. Currently, this system is not typically equipped on drilling rigs. This invention integrates this system, which reduces noise and is also low-carbon and environmentally friendly.

[0018] A further technical solution of this utility model is: a heat-insulating guide is provided between the third silencing device and the radiator.

[0019] The third silencer is located at the end of the silencer chamber, with a distance between it and the radiator. To prevent hot air from the radiator from entering the silencer chamber and affecting the operation of the diesel generator, a heat-insulating guide is installed between the third silencer and the radiator.

[0020] A further technical solution of this utility model is that the guide member has a trumpet-shaped structure and is made of flexible material. This facilitates the installation of the guide member between the third silencing device and the radiator.

[0021] A further technical solution of this utility model is that the first silencing device, the second silencing device, and the third silencing device all include a folding plate type silencer.

[0022] A further technical solution of this utility model is: the folded plate silencer includes a shell and a plurality of perforated plates placed inside the shell, wherein sound-absorbing material layers are spaced apart between the perforated plates, and a bent sound-absorbing channel can be formed between the perforated plates.

[0023] Compared to straight-tube silencers, the curved silencing channel used in this invention has the following advantages: given a straight length, it can increase the propagation path of sound waves in the pipe, increase the number of reflections, and improve the high-frequency silencing.

[0024] Depending on the requirements, the silencing channel of the folding plate silencer can adopt a horizontal structure. Figure 7 A vertical structure can also be used, such as Figure 8 .

[0025] A further technical solution of this utility model is that the bend angle of the silencing channel is less than 20°.

[0026] The above-mentioned silencers all adopt the folding plate type silencer, see Figure 7 Its noise reduction principle involves fixing porous sound-absorbing material into the airflow channel using a perforated plate with multiple bends. As sound waves propagate through the porous material, frictional and viscous resistance converts sound energy into heat energy, thus achieving noise reduction. To minimize airflow resistance loss, the bend angle of the channel is designed to be less than 20°. The folded plate silencer uses a metal plate shell.

[0027] By designing a folding-plate silencer, the high-frequency noise reduction effect is improved. The soundproofing chamber's heat dissipation is also fully considered, with sufficient intake fans configured and noise reduction measures carefully implemented. This allows the noise level to be controlled at around 80 dB(A), better meeting environmental protection requirements. The soundproofing chamber is green, low-carbon, and quiet in terms of noise reduction.

[0028] A further technical solution of this utility model is: the soundproof room includes a metal plate, a porous metal plate, and a sound-absorbing material layer placed between the metal plate and the porous metal plate, wherein the porous metal plate faces the inside of the soundproof room.

[0029] The schematic diagram of the anechoic chamber is as follows Figure 5 and Figure 6 As shown in the diagram. The anechoic chamber includes soundproofing of the entire chamber's sides, bottom, top, and soundproof doors, using internal sound-absorbing materials for noise reduction and to prevent sound leakage. A schematic diagram of the soundproofing structure of the anechoic chamber is shown below. Figure 9 (a) and Figure 9 As shown in (b), it mainly includes: a porous metal plate facing the noise source, porous sound-absorbing material sandwiched inside the chamber, and a metal plate on the outside of the chamber. The porous metal plate has holes for noise waves to pass through. The sound insulation structure has both sound insulation and noise reduction functions, and its noise reduction principle is the same as that of the folded plate silencer described above.

[0030] A further technical solution of this utility model is that the top of the anechoic chamber is detachable.

[0031] The top of the anechoic chamber is removable, making it convenient for transportation.

[0032] This utility model also provides an environmentally friendly drilling rig, including a drilling rig host, an electrical control room, and a diesel generator system. The drilling rig host is connected to the electrical control room, and the electrical control room is connected to the diesel generator system. The drilling rig includes a base, a derrick placed on the base, and a crane placed on the derrick. The derrick is equipped with multiple sets of green lights, and the wavelength of the green lights is 540±5 nanometers.

[0033] A further technical solution of this utility model is: the drilling rig host is sprayed with camouflage color.

[0034] The color of the light is selected based on the birds' reactions to different wavelengths of light. Figure 2 A comparison of human and bird vision, by Figure 2 It can be seen that: 1) When the wavelength of the light source is greater than 590nm, the main reflected colors are yellow and red, which seriously interferes with the magnetic orientation ability and migratory biological rhythms of birds, and will significantly increase the "corticosterone level" of birds, thereby inducing stress responses in birds and seriously interfering with their habitats and lives; 2) When the wavelength is less than 492nm, it will not only attract and disturb birds, but will also have a certain impact on the human visual discrimination ability, posing a safety risk to the normal production and operation of the well team; 3) Green light with a main wavelength in the range of 540nm ± 5nm, that is, relatively invisible to birds and relatively visible to humans, is the best choice.

[0035] Based on this conclusion, green light sources have the least impact on animals; therefore, the outdoor lighting fixtures of this invention use green lights with specific illuminance.

[0036] This utility model's drilling rig features noise reduction, quiet operation, and low-carbon environmental protection, enabling it to avoid adverse effects and damage to animal habitats and reproduction during operations in nature reserves, forest parks, and other areas. Simultaneously, it purifies exhaust gases, reduces air pollution, and improves environmental protection standards, contributing to environmental protection and harmonious coexistence between humans and animals. It also avoids adverse health effects on people operating in densely populated areas.

[0037] The beneficial effects of this utility model are as follows: This utility model addresses noise reduction for diesel generators by fully enclosing the generator in a soundproof enclosure. However, considering the generator's need for air intake and heat dissipation, a first soundproofing device is further installed on the top of the enclosure. This first device is connected to the interior of the enclosure via a fan, ensuring adequate air intake and noise reduction. Furthermore, the location of the first device at the top of the enclosure does not interfere with the connection between the generator and other equipment, resulting in efficient space utilization and convenient transportation. The exhaust gas from the generator is connected to a second soundproofing device through an upward-facing exhaust port. After passing through the second soundproofing device, the exhaust gas is discharged horizontally, preventing rainwater from entering the generator during operation. The generator generates heat during operation, and its radiator is connected to a third soundproofing device. This larger device, located at the end of the enclosure, facilitates installation and better meets the generator's heat dissipation requirements. Both the second and third soundproofing devices have horizontal exhaust directions, preventing interference and rainwater ingress. It can be seen that, based on solving the problem of overall noise reduction of diesel generators, this utility model fully considers the needs of diesel generators for air intake and heat dissipation during operation, thereby ensuring that the noise reduction of diesel generators does not affect other needs of diesel generators. Attached Figure Description

[0038] Figure 1 It is a silencer in the background technology;

[0039] Figure 2 This utility model provides a visual comparison diagram of humans and birds;

[0040] Figure 3 This is a schematic diagram of the camouflage pattern provided by this utility model;

[0041] Figure 4 This is a schematic diagram of the position of the drilling rig main unit lights provided by this utility model;

[0042] Figure 5 This is a schematic diagram of the internal structure of the anechoic chamber provided by this utility model;

[0043] Figure 6 This is a top view of the soundproof room provided by this utility model;

[0044] Figure 7 This is a schematic diagram of the folding plate silencer provided by this utility model; wherein Figure 7 (a) is a schematic diagram of the inlet direction of the silencer. Figure 7 (b) is an internal diagram;

[0045] Figure 8 This is a schematic diagram of another folding plate type muffler provided by this utility model; wherein Figure 8(a) is a schematic diagram of the inlet direction of the silencer. Figure 8 (b) Schematic diagram of airflow direction. Figure 8 (c) is a cross-sectional view along the AA direction;

[0046] Figure 9 This is a cross-sectional view of the soundproof room provided by this utility model; wherein Figure 9 (a) is a cross-sectional view of the sound insulation structure of the soundproof room; Figure 9 (b) is a schematic diagram of direction B.

[0047] Reference numerals: 1. Green light, 2. Right wing room, 3. Base, 4. Left wing room, 5. Derrick, 6. Overhead crane, 7. Third silencing device, 71. Sound-absorbing material layer, 72. Perforated plate, 73. Outer shell, 8. Second silencing device, 9. Diesel particulate filter, 10. First silencing device, 11. Soundproof door, 12. Silencing room, 121. Perforated metal plate, 122. Sound-absorbing material layer, 123. Metal plate, 124. Hole, 13. Fan, 14. Guide component. Detailed Implementation

[0048] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0049] Example 1:

[0050] Figure 5-9 An environmentally friendly diesel generator system is shown. The system includes a diesel generator and a soundproof chamber 12 outside the generator. A first soundproofing device 10 communicating with the interior of the soundproof chamber 12 is located above the soundproof chamber 12. A second soundproofing device 8 communicating with the exhaust port of the diesel generator is located above the soundproof chamber 12. A third soundproofing device 7 communicating with the radiator of the diesel generator is located on the side of the soundproof chamber 12. The air inlet of the first soundproofing device 10 receives air horizontally and enters the soundproof chamber 12 through a fan 13. The air outlets of the second and third soundproofing devices 8 and 7 are both in the same direction as the air inlet of the first soundproofing device 10.

[0051] There are many noise sources in oil drilling operations, including diesel generators, mud pumps, winches, hydraulic stations, air compressors, vibrating screens, sand pumps, agitators, water pumps, and oil pumps. Among these, the diesel generator is the noisiest and most difficult to control. If the noise reduction of the diesel generator is done well, the noise reduction of other equipment is relatively easier. This invention targets noise reduction for the diesel generator by fully enclosing it in a soundproof chamber 12. However, considering the need for air intake and heat dissipation, this invention further includes a first soundproofing device 10 on the top of the soundproof chamber 12. The first soundproofing device 10 is connected to the interior of the soundproof chamber 12 via a fan 13, ensuring air intake and noise reduction within the soundproof chamber 12. Furthermore, the first soundproofing device 10, located at the top of the soundproof chamber 12, does not interfere with the connection between the diesel generator and other equipment, making efficient use of space and facilitating transportation. The exhaust gas from the diesel generator is connected to a second soundproofing device 8 through a smoke exhaust port. Next, the exhaust port of the diesel generator faces upwards. The exhaust gas passing through the exhaust port passes through the second silencer 8 and is then discharged horizontally, preventing rainwater from entering the diesel generator during rainy days. The diesel generator generates heat during operation, and its radiator is connected to the third silencer 7. The third silencer 7 is relatively large and located at the end of the silencing chamber 12, which not only facilitates installation but also better meets the generator's heat dissipation needs. The exhaust ports of both the second and third silencers 8 are horizontal, preventing interference and rainwater from entering the generator. Therefore, this invention, while solving the overall noise reduction problem of diesel generators, fully considers the generator's air intake and heat dissipation needs during operation, ensuring that noise reduction does not affect other requirements of the diesel generator. In this embodiment, the air inlet of the first silencer 10 is placed in front of the second silencer 8, preventing the gas discharged from the second silencer 8 from being sucked into the first silencer 10.

[0052] In this embodiment, the diesel generator's diesel internal combustion engine requires intake air for combustion and cooling, and the diesel engine's high-power radiator fan requires intake air for heat dissipation. The intake air is provided by an intake fan 13 installed on the top of the anechoic chamber 12. The intake air of the fan 13 is drawn from outside the anechoic chamber 12 through a first anechoic device 10 on the right side of the roof in the figure. The first intake device 10 is used to reduce intake noise. The power of a typical main generator is 1200KW, and the total air intake volume required for the entire anechoic chamber is approximately 200,000 m³. 3 / h, set 4 units with an air intake volume of 50000m³ / h. 3 The / h fan 13 is located on the roof of the soundproof room 12, and the air inlet of the fan 13 uses a folding plate silencer to reduce noise.

[0053] In this embodiment, regarding exhaust, the combustion exhaust gas of the diesel engine is discharged from the roof of the silencing chamber 12 through the engine's exhaust pipe. After being treated by the diesel particulate filter 9, it is turned 90 degrees and discharged horizontally to the top of the silencing chamber 12. Then, it is discharged and noise is reduced by the second silencing device 8 designed in this utility model, and the noise level is reduced to below 80dB(A). The exhaust air of the engine radiator fan is discharged through the guide 14 to the third silencing device 7 at the end of the silencing chamber 12 to achieve exhaust, heat dissipation and noise reduction.

[0054] In this embodiment, the anechoic chamber 12 has an opening at the top, and the first anechoic device 10 is connected to the interior of the anechoic chamber 12 through a fan 13 and the opening. The large air intake area ensures the air intake requirements during the operation of the diesel generator.

[0055] In this embodiment, the fan 13 is disposed at the opening.

[0056] In this embodiment, the second silencer 8 is connected to the exhaust port via a diesel particulate filter 9 and a pipe. When the exhaust gas containing carbon particles emitted by the diesel generator passes through the diesel particulate filter 9, the soot produced by the engine can be reduced by more than 90%. This results in purified exhaust gas, reduced air pollution, and improved environmental performance.

[0057] In this embodiment, the diesel particulate filter 9 can be a commercially available product with compatible parameters. In terms of reducing air pollution, the diesel generator exhaust emission reduction system, equipped with the particulate filter 9, achieves low carbon emissions and low emissions.

[0058] In this embodiment, the inlet of the diesel particulate filter 9 is connected to the exhaust port through a pipe to prevent exhaust gas from directly entering the silencing chamber 12 through the exhaust port.

[0059] DPF stands for Diesel Particulate Filter, also known as a diesel particulate filter or diesel generator particulate regenerator. The DPF works by trapping carbon particles in the black smoke emitted by a diesel engine through a dedicated exhaust pipe. These particles are adsorbed onto a filter made of metal fiber felt. This reduces engine soot production by over 90%. However, as carbon particles accumulate, the amount trapped inside the DPF increases, leading to higher exhaust resistance and impacting fuel consumption and power. To maintain optimal engine performance, the system automatically regenerates the DPF when particles reach a certain level, removing the accumulated particles through high-temperature combustion.

[0060] The DPF system is of great significance for purifying exhaust gases, reducing air pollution, and improving environmental performance. Currently, this system is not typically equipped on drilling rigs. This invention integrates this system, which reduces noise and is also low-carbon and environmentally friendly.

[0061] In this embodiment, a heat-insulating guide 14 is provided between the third silencing device 7 and the radiator.

[0062] The third silencing device 7 is located at the end of the silencing chamber 12 and is some distance away from the radiator. In order to prevent the hot air from the radiator from entering the silencing chamber 12 and affecting the operation of the diesel generator, a heat insulation guide 14 is provided between the third silencing device 7 and the radiator.

[0063] In this embodiment, the guide member 14 has a flared structure and is made of flexible material. This facilitates the installation of the guide member 14 between the third silencing device 7 and the heat sink.

[0064] In this embodiment, the first silencing device 10, the second silencing device 8, and the third silencing device 7 all include a folding plate type silencer.

[0065] In this embodiment, the folding plate silencer includes a housing 73 and a plurality of perforated plates 72 disposed inside the housing 73. Sound-absorbing material layers 71 are spaced apart between the perforated plates 72, and a bent sound-absorbing channel can be formed between the perforated plates 72.

[0066] Compared to straight-tube silencers, the curved silencing channel used in this invention has the following advantages: given a straight length, it can increase the propagation path of sound waves in the pipe, increase the number of reflections, and improve the high-frequency silencing.

[0067] Depending on the requirements, the silencing channel of the folding plate silencer can adopt a horizontal structure. Figure 7 As shown, where Figure 7 (a) is a schematic diagram of the inlet direction of the silencer. Figure 7 (b) is an internal diagram; a vertical structure can also be used, such as... Figure 8 As shown, where Figure 8 (a) is a schematic diagram of the inlet direction of the silencer. Figure 8 (b) Schematic diagram of airflow direction. Figure 8 (c) is a cross-sectional view along the AA direction.

[0068] In this embodiment, the bend angle of the silencing channel is less than 20°.

[0069] In this embodiment, all silencers are folding plate type silencers, see... Figure 7The silencing principle involves fixing a porous sound-absorbing material 71 within an airflow channel using a perforated plate 72 that has undergone multiple bends. As sound waves propagate through the porous sound-absorbing material 71, frictional and viscous resistance converts sound energy into heat energy, thus achieving silencing. To minimize airflow resistance loss, the bend angle of the channel is designed to be less than 20°. The folded plate silencer uses a metal plate shell 73.

[0070] By designing a folding-plate silencer, the high-frequency noise reduction effect is improved. The soundproofing chamber's heat dissipation is also fully considered, with sufficient intake fans configured and noise reduction measures carefully implemented. This allows the noise level to be controlled at around 80 dB(A), better meeting environmental protection requirements. The soundproofing chamber is green, low-carbon, and quiet in terms of noise reduction.

[0071] In this embodiment, the anechoic chamber 12 includes a metal plate 123, a porous metal plate 121, and a sound-absorbing material layer 122 placed between the metal plate 123 and the porous metal plate 121, with the porous metal plate 121 facing the inside of the anechoic chamber 12.

[0072] The schematic diagram of anechoic chamber 12 is as follows Figure 5 As shown. The anechoic chamber 12, including its entire perimeter, bottom, top, and soundproof door 11, is completely soundproofed, using internally sandwiched sound-absorbing material for noise reduction and to prevent sound leakage. A schematic diagram of the soundproofing structure of the anechoic chamber is shown below. Figure 9 As shown, where Figure 9 (a) is a cross-sectional view of the sound insulation structure of the soundproof room; Figure 9 (b) is a schematic diagram from direction B. It mainly includes: a porous metal plate 121 facing the noise source, a porous sound-absorbing material 122 sandwiched within the chamber, and a metal plate 123 on the outer side of the chamber. The porous metal plate 121 has holes 124 for noise waves to pass through. The sound insulation structure has both sound insulation and noise reduction functions; its noise reduction principle is the same as the previously described folding plate silencer.

[0073] In this embodiment, the top of the anechoic chamber 12 is detachable.

[0074] The top of the anechoic chamber 12 is removable, making it convenient for transportation.

[0075] Example 2:

[0076] Figure 2-9 An environmentally friendly drilling rig is shown, including a drilling rig host, an electrical control room, and a diesel generator system. The drilling rig host is connected to the electrical control room, and the electrical control room is connected to the diesel generator system described in Embodiment 1. The drilling rig includes a base 3, a derrick 5 placed on the base 3, and a crane 6 placed on the derrick 5. The derrick 5 is equipped with multiple sets of green lights 1, and the wavelength of the green lights is 540±5 nanometers.

[0077] In this embodiment, the diesel generator is used to provide power to the electrical control room.

[0078] In this embodiment, the drilling rig host is painted with camouflage color.

[0079] The color of the light is selected based on the birds' reactions to different wavelengths of light. Figure 2 A comparison of human and bird vision, by Figure 2 It can be seen that: 1) When the wavelength of the light source is greater than 590nm, the main reflected colors are yellow and red, which seriously interferes with the magnetic orientation ability and migratory biological rhythms of birds, and will significantly increase the "corticosterone level" of birds, thereby inducing stress responses in birds and seriously interfering with their habitats and lives; 2) When the wavelength is less than 492nm, it will not only attract and disturb birds, but will also have a certain impact on the human visual discrimination ability, posing a safety risk to the normal production and operation of the well team; 3) Green light with a main wavelength in the range of 540nm ± 5nm, that is, relatively invisible to birds and relatively visible to humans, is the best choice.

[0080] Based on this conclusion, green light sources have the least impact on animals; therefore, the outdoor lighting fixtures of this invention use green lights with specific illuminance.

[0081] like Figure 4 This diagram shows the lighting arrangement on the drilling rig main unit. The drilling rig main unit includes a base 3, a derrick 5 mounted on the base 3, and a crane 6 mounted on the derrick 5. A left side room 4 and a right side room 2 are respectively located on both sides of the base 3. Multiple sets of green lights 1 with wavelengths in the range of 540 nm ± 5 nm are arranged on the base 3 and the derrick 5. Lights in this wavelength range are relatively invisible to birds but relatively visible to humans, minimizing the impact on birds. Furthermore, all external parts of the drilling rig components, such as the right side room 2 (driller's cabin), base 3, left side room 4, derrick 5, and crane 6, are painted with camouflage paint. Figure 3 As shown, similar to the natural environment, it will not disturb birds or other animals. It has animal-friendly features, solving the problem of well drilling in nature reserves, forest parks, and other areas impacting and damaging animal habitats, reproduction, and survival, thus contributing to environmental protection and harmonious coexistence between humans and animals.

[0082] This utility model's drilling rig features noise reduction, quiet operation, and low-carbon environmental protection, enabling it to avoid adverse effects and damage to animal habitats and reproduction during operations in nature reserves, forest parks, and other areas. Simultaneously, it purifies exhaust gases, reduces air pollution, and improves environmental protection standards, contributing to environmental protection and harmonious coexistence between humans and animals. It also avoids adverse health effects on people operating in densely populated areas.

[0083] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly diesel generator system, characterized in that: The environmentally friendly diesel generator system includes a diesel generator and a silencing chamber (12) outside the diesel generator. A first silencing device (10) communicating with the interior of the silencing chamber (12) is provided above the silencing chamber (12). A second silencing device (8) communicating with the exhaust port of the diesel generator is provided above the silencing chamber (12). A third silencing device (7) communicating with the radiator of the diesel generator is provided on the side of the silencing chamber (12). The air inlet of the first silencing device (10) is horizontally fed into the silencing chamber (12) through a fan (13). The second silencing device (8) and the third silencing device (7) both exhaust air in a horizontal direction.

2. The environmentally friendly diesel generator system according to claim 1, characterized in that: The anechoic chamber (12) has an opening at the top, and the first anechoic device (10) is connected to the interior of the anechoic chamber (12) through a fan (13) and the opening.

3. The environmentally friendly diesel generator system according to claim 1, characterized in that: The second silencing device (8) is connected to the exhaust port via a particle catcher (9) and a pipe.

4. The environmentally friendly diesel generator system according to claim 1, characterized in that: A heat-insulating guide (14) is provided between the third silencing device (7) and the radiator.

5. The environmentally friendly diesel generator system according to claim 4, characterized in that: The guide (14) has a trumpet-shaped structure and is made of flexible material.

6. The environmentally friendly diesel generator system according to claim 1, characterized in that: The first silencing device (10), the second silencing device (8) and the third silencing device (7) all include a folding plate type silencer.

7. The environmentally friendly diesel generator system according to claim 6, characterized in that: The folded plate silencer includes a housing (73) and a plurality of perforated plates (72) placed inside the housing (73). Sound-absorbing material layers (71) are spaced apart between the perforated plates (72), and a bent sound-absorbing channel can be formed between the perforated plates (72).

8. The environmentally friendly diesel generator system according to claim 1, characterized in that: The anechoic chamber (12) includes a metal plate (123), a porous metal plate (121), and a sound-absorbing material layer (122) placed between the metal plate (123) and the porous metal plate (121), with the porous metal plate (121) facing the inside of the anechoic chamber (12).

9. An environmentally friendly drilling rig, comprising a drilling rig main unit, an electrical control room, and a diesel generator system, characterized in that: The drilling rig host is connected to the electrical control room, and the electrical control room is connected to the diesel generator system according to any one of claims 1-8. The drilling rig includes a base (3), a derrick (5) placed on the base (3), and a crane (6) placed on the derrick (5). The derrick (5) is provided with multiple sets of green lights (1), and the wavelength of the green lights is 540±5 nanometers.

10. An environmentally friendly drilling rig according to claim 9, characterized in that: The drilling rig main unit is painted with camouflage colors.

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