Dual noise reduction structure
By adopting a dual noise reduction structure in oil and gas drilling rig equipment, combining multi-level design and silencer combination, the noise problem of drilling rig equipment is solved, and significant noise reduction and equipment life are achieved.
Patent Information
- Application Number
- CN202422397600.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Oil and gas drilling equipment generates high noise during operation, resulting in equipment being prone to failure and reducing service life. The existing noise reduction technology has the limitations of sound insulation, sound absorption, shock absorption and sound source control methods.
A double noise reduction structure is adopted, including the first noise reduction structure and the secondary sound insulation room body. A noise reduction module unit is added to the secondary sound insulation room body. Through the combination of multi-level design and silencer, more effective noise isolation and reduction can be achieved.
Significantly reduce noise during equipment operation, protect the living environment of surrounding residents, reduce the impact on the ecological environment, extend the service life of the equipment, and is modular in design for easy replacement and maintenance.
Smart Images
Figure CN222976768U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a double noise reduction structure and belongs to the technical field of noise reduction. Background Art
[0002] As global energy demand continues to grow, the importance of the oil and gas drilling industry has become increasingly prominent. As the core equipment for oil and gas extraction, the performance of drilling rigs is directly related to extraction efficiency and environmental friendliness.
[0003] However, oil and gas drilling equipment, especially key components such as diesel generators, fracturing pumps, mud pumps, solids control equipment and machine tools, will generate high noise during operation. Equipment that is in a high noise environment for a long time is prone to failure and reduces its service life. Therefore, reducing the noise of drilling equipment has become an urgent problem to be solved in the current oil and gas extraction industry.
[0004] At present, the noise reduction measures for oil and gas drilling equipment mainly include sound insulation, sound absorption, vibration reduction and sound source control technologies. However, these technologies have the following shortcomings in practical applications:
[0005] (1) Sound insulation technology: Although the installation of soundproof covers and soundproof walls can isolate noise to a certain extent, it will affect ventilation and heat dissipation and increase energy consumption.
[0006] (2) Sound-absorbing technology: Use sound-absorbing materials to wrap the noise source to reduce noise transmission. However, the use of sound-absorbing materials will increase the weight of the equipment and it is easy to be damaged in harsh environments.
[0007] (3) Shock absorption technology: Shock absorption brackets, shock absorption pads, etc. are used to reduce equipment vibration and noise. However, the shock absorption effect is limited by the type of equipment and operating conditions, and may lead to a decrease in equipment stability.
[0008] (4) Sound source control technology: optimize the internal structure of the equipment to reduce noise generation. However, this method has high requirements on equipment design and manufacturing process and is difficult to implement.
[0009] In summary, the noise problem of oil and gas drilling equipment needs to be solved urgently. The existing noise reduction technology has certain limitations in application. Therefore, it is of great significance to study new, efficient and practical noise reduction structures. Utility Model Content
[0010] The utility model aims to provide a double noise reduction structure to solve the above-mentioned problems, which can significantly reduce the noise generated when the equipment is running.
[0011] The technical solution adopted by the utility model is as follows:
[0012] A dual noise reduction structure includes a primary noise reduction structure. An acoustic enclosure is provided outside the primary noise reduction structure. An exhaust muffler is provided on one side of the acoustic enclosure, and an intake muffler is provided on the other side of the acoustic enclosure. An exhaust muffler group is also provided on the acoustic enclosure. A muffler cover is provided outside the exhaust muffler group, and the muffler cover has an opening facing the discharge port of the exhaust muffler group. An axial flow fan is further provided on the primary noise reduction structure. A fan muffler for covering the axial flow fan is provided on the acoustic enclosure, and the fan muffler is communicated with the exhaust side of the axial flow fan.
[0013] Optionally, the exhaust muffler group includes a primary muffler, and a secondary muffler is further connected to the discharge port of the primary muffler. The muffler cover is provided outside the primary muffler and the secondary muffler.
[0014] Optionally, the upper part of the acoustic enclosure is closed and penetrates downward.
[0015] Optionally, the acoustic enclosure includes multiple walls, and a number of counterbores are provided on the inner side of the walls, and sound-absorbing materials are filled in the counterbores.
[0016] Optionally, the sound-absorbing material is sound insulation cotton.
[0017] Optionally, there is an aisle gap between the inner side of the acoustic enclosure and the outer side of the primary noise reduction structure.
[0018] Optionally, a radiator is provided inside the primary noise reduction structure, and the exhaust muffler is provided on the exhaust side of the radiator.
[0019] Optionally, a bracket is provided below the exhaust muffler.
[0020] Optionally, a flow guide cover is provided between the radiator and the exhaust muffler, and the flow guide cover passes through the primary noise reduction structure and the acoustic enclosure.
[0021] Optionally, a sound insulation door is further provided on the acoustic enclosure.
[0022] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0023] 1. For the dual noise reduction structure provided by the present utility model, a secondary acoustic enclosure is added on the basis of the conventional primary noise reduction structure, and noise reduction module units are added to the secondary acoustic enclosure; the secondary noise reduction structure adopts a modular design, which is convenient for replacement; the secondary acoustic noise reduction structure fully considers the requirements of equipment ventilation, heat dissipation and air intake.
[0024] 2. A dual noise reduction structure provided by the present utility model can reduce noise pollution, which helps to protect the living environment of surrounding residents and reduce the impact on the ecological environment, meeting the development concept of green environmental protection. The design of each muffler and sound insulation housing makes maintenance and repair more convenient, contributing to the extension of the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is the front view of the internal structure of the present utility model.
[0026] Figure 2 is the top view of the internal structure of the present utility model.
[0027] Figure 3 is the side view of the internal structure of the present utility model.
[0028] Figure 4 is the top view of the external structure of the present utility model
[0029] Reference numerals in the drawings: 1 - the first-stage noise reduction structure, 2 - sound insulation housing, 3 - exhaust muffler, 4 - bracket, 5 - exhaust muffler group, 51 - primary muffler, 52 - secondary muffler, 6 - muffler cover, 7 - fan muffler, 8 - axial flow fan, 9 - inlet muffler, 10 - deflector hood. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] The present utility model will be described in detail below with reference to the accompanying drawings.
[0031] In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0032] A dual noise reduction structure, as Figures 1-4 shown, includes a first-stage noise reduction structure 1. A sound insulation housing 2 is provided outside the first-stage noise reduction structure 1. An exhaust muffler 3 is provided on one side of the sound insulation housing 2, and an inlet muffler 9 is provided on the other side of the sound insulation housing 2; An exhaust muffler group 5 is further provided on the sound insulation housing 2. A muffler cover 6 is provided outside the exhaust muffler group 5, and the muffler cover 6 is provided with an opening towards the discharge port of the exhaust muffler group 5; An axial flow fan 8 is further provided on the first-stage noise reduction structure 1. A fan muffler 7 for covering the axial flow fan 8 is provided on the sound insulation housing 2, and the fan muffler 7 is communicated with the exhaust side of the axial flow fan 8.
[0033] Specifically, the first-stage noise reduction structure 1 is the core part of the noise reduction structure. It is a conventional skid-mounted structure with a housing and a roof, and is used for diesel generators, fracturing pump units, mud pump units, solids control equipment, machine tools, etc., which can play a certain role in sound insulation and noise reduction. The sound insulation housing 2 is wrapped around the outside of the first-stage noise reduction structure 1, effectively enclosing the noise of the drilling rig equipment inside, and greatly reducing the impact of the noise on the external environment. The sound insulation housing 2 and the first-stage noise reduction structure 1 inside form a noise isolation layer, which helps to achieve a better noise reduction effect and reduce the impact of noise on the surrounding environment. The exhaust muffler 3 is used to reduce the noise generated by the hot air discharged during the operation of the drilling rig equipment. The intake muffler 9 is used to reduce the noise generated when inhaling air and ensure the cooling air required by the drilling rig equipment. The exhaust muffler group 5 is connected to the exhaust port of the drilling rig equipment and is used to reduce the noise generated during the exhaust process. The muffler cover 6 covers the outside of the exhaust muffler group 5, which can further reduce the exhaust noise and protect the exhaust muffler group 5. The axial flow fan 8 is installed on the first-stage noise reduction structure 1 and is used to enhance the indoor air flow and help with heat dissipation. Its exhaust air volume meets the requirements of the equipment heat dissipation. The fan muffler 7 is connected to the exhaust side of the axial flow fan 8 and is used to reduce the noise generated during the operation of the fan.
[0034] In this solution, not only is there a sound insulation housing 2 on the outside, but also mufflers are provided at key noise generation points such as the exhaust port and the intake port. Such a multi-level design further weakens the noise. The settings of the exhaust muffler 3 and the intake muffler 9 ensure the necessary air circulation inside the first-stage noise reduction structure 1 while reducing the noise, ensuring that the drilling rig equipment can dissipate heat normally. The combined use of the exhaust muffler group 5 and the muffler cover 6 effectively controls the noise generated during the exhaust of the drilling rig equipment, resulting in a significant reduction in the exhaust noise. The combined use of the exhaust muffler group 5 and the muffler cover 6 effectively controls the noise generated during the exhaust of the drilling rig equipment, resulting in a significant reduction in the exhaust noise. In this embodiment, the exhaust muffler 3, the intake muffler 9, and the fan muffler 7 can all adopt the grid muffler in the existing technology.
[0035] As another specific implementation manner, the exhaust muffler group 5 includes a primary muffler 51, and the discharge port of the primary muffler 51 is further connected to a secondary muffler 52. The muffler cover 6 is arranged outside the primary muffler 51 and the secondary muffler 52. The primary muffler 51 initially reduces the noise of the high-temperature and high-pressure gas discharged from the exhaust port of the drilling rig equipment. The secondary muffler 52 is connected to the discharge port of the primary muffler 51 and, as a second-stage silencing device, further reduces the remaining noise of the gas after passing through the primary muffler 51. Through the series design of the primary muffler 51 and the secondary muffler 52, a hierarchical noise reduction effect is achieved, which can more effectively reduce the noise than a single muffler. The structure of the muffler cover 6 has the characteristics of sound absorption and noise reduction, and can reduce the noise generated by the exhaust muffler group 5 to the greatest extent.
[0036] As another specific embodiment, the upper part of the sound insulation housing 2 is closed and penetrates downward. The design of the penetrating lower part allows for the assembly of the sound insulation housing 2 after the installation of the first-stage noise reduction structure 1 is completed, or directly hoisting the sound insulation housing 2 from above the first-stage noise reduction structure 1. The installation process is relatively simple and fast.
[0037] As another specific embodiment, the sound insulation housing 2 includes multiple walls. A number of counterbores are provided on the inner side of the walls, and sound-absorbing materials are filled in the counterbores. The sound insulation housing 2 is composed of multiple walls, which can be prefabricated parts, facilitating installation and disassembly, and also enabling adjustment of the size and shape of the housing according to needs. Counterbores are provided on the inner side of the walls, which are pre-designed grooves or holes for placing sound-absorbing materials. The thicker the wall, the more obvious the sound insulation and noise reduction effect. The sound-absorbing materials filled in the counterbores, such as sound-absorbing cotton, foam materials or other professional sound insulation materials, can absorb sound waves and reduce the transmission of noise. Compared with through holes, sound waves will not pass through the holes and will not weaken the structural integrity of the wall. In addition, if the sound-absorbing materials are damaged or their performance deteriorates, the materials in the counterbores can be easily replaced without replacing the entire wall.
[0038] As another specific embodiment, the sound-absorbing material is sound-absorbing cotton. Sound-absorbing cotton has excellent sound absorption performance, can effectively absorb sound waves, and reduce the reflection and transmission of sound waves. And the sound-absorbing cotton can be cut according to the size of the counterbore, and the installation process is simple and fast.
[0039] As another specific embodiment, there is an aisle gap between the inner side of the sound insulation housing 2 and the outer side of the first-stage noise reduction structure 1. The aisle gap can provide sufficient space for maintenance and repair personnel to operate and maintain the first-stage noise reduction structure 1 and the drilling equipment inside it without disassembling the sound insulation housing 2, and helps with the ventilation and heat dissipation of the first-stage noise reduction structure 1. In addition, through this gap, there is no need to consider the specific external structure of the first-stage noise reduction structure 1, and only need to cover it, which is convenient for the construction and installation of the sound insulation housing 2.
[0040] As another specific embodiment, a radiator is provided inside the first-stage noise reduction structure 1, and the exhaust muffler 3 is arranged on the exhaust side of the radiator. The exhaust muffler 3 can absorb and reduce the noise caused by the exhaust of the radiator, so that the noise level of the entire structure is controlled. By arranging the muffler on the exhaust side of the radiator, space can be saved, additional pipeline layout can be avoided, and the efficient heat dissipation of the radiator can be ensured to prevent the equipment from overheating.
[0041] As another specific embodiment, a bracket 4 is provided below the exhaust muffler 3. Since the exhaust muffler 3 exhausts air from the side, the bracket 4 can enhance the overall stability of the exhaust muffler 3 and prevent displacement or damage caused by factors such as vibration or wind force.
[0042] As another specific embodiment, a flow guide cover 10 is provided between the radiator and the exhaust muffler 3, and the flow guide cover 10 passes through the first-stage noise reduction structure 1 and the sound insulation housing 2. The flow guide cover 10 can ensure the smooth discharge of hot air, prevent the hot air from returning to the housing, improve the heat dissipation efficiency of the radiator, and can control the path of the air flow, reducing the spread of noise in other directions.
[0043] As another specific embodiment, a sound insulation door is further provided on the sound insulation housing 2. The sound insulation door can facilitate the entry and exit of personnel while maintaining good sound insulation effect.
[0044] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. The present invention extends to any new features or any new combinations disclosed in this specification, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the detailed technical features not disclosed in this embodiment, such as specific structures, connection methods, etc., can be obtained by those skilled in the art from the prior art, and the present disclosure embodiment does not make specific limitations on this.
[0045] In the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
Claims
1. A dual noise reduction structure, characterized in that: The invention comprises a first noise reduction structure (1), wherein a soundproof room (2) is arranged outside the first noise reduction structure (1), an exhaust silencer (3) is arranged on one side of the soundproof room (2), and an intake silencer (9) is arranged on the other side of the soundproof room (2); an exhaust silencer group (5) is also arranged on the soundproof room (2), a silencer cover (6) is arranged on the outer side of the exhaust silencer group (5), and an opening is arranged in the silencer cover (6) towards the exhaust outlet of the exhaust silencer group (5); an axial flow fan (8) is also arranged on the first noise reduction structure (1), and a fan silencer (7) for covering the axial flow fan (8) is arranged on the soundproof room (2), and the fan silencer (7) is connected to the exhaust side of the axial flow fan (8).
2. The dual noise reduction structure according to claim 1, characterized in that: The exhaust silencer group (5) comprises a primary silencer (51), the exhaust port of the primary silencer (51) is also connected to a secondary silencer (52), and the silencer cover (6) is arranged outside the primary silencer (51) and the secondary silencer (52).
3. The dual noise reduction structure according to claim 1, characterized in that: The soundproof room (2) is closed at the top and connected downwards.
4. The dual noise reduction structure according to claim 1, characterized in that: The soundproof room (2) comprises a plurality of walls, the inner sides of the walls are provided with a plurality of countersunk holes, and the countersunk holes are filled with sound-absorbing materials.
5. The dual noise reduction structure according to claim 4, characterized in that: The sound-absorbing material is sound-insulating cotton.
6. The dual noise reduction structure according to claim 1, characterized in that: There is an aisle gap between the inner side of the soundproof room body (2) and the outer side of the first noise reduction structure (1).
7. The dual noise reduction structure according to claim 1, characterized in that: A radiator is provided inside the first noise reduction structure (1), and the exhaust silencer (3) is arranged on the exhaust side of the radiator.
8. The dual noise reduction structure according to claim 7, characterized in that: A bracket (4) is provided below the exhaust silencer (3).
9. The dual noise reduction structure according to claim 7, characterized in that: A deflector (10) is provided between the radiator and the exhaust silencer (3), and the deflector (10) is provided through the first noise reduction structure (1) and the soundproof room body (2).
10. The dual noise reduction structure according to claim 1, characterized in that: The soundproof room (2) is also provided with a soundproof door.