A compressor venting and noise reduction pipeline and its noise reduction system
By installing a spiral flow guiding device with bends, diversion lines, and silencers in the compressor's venting pipeline, the problem of excessive noise during venting of shale gas booster compressors was solved, achieving the effect of reducing noise and safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
The high-pressure gas generated by the shale gas booster during the sewage discharge and venting process produces excessive noise, which affects the environment and the health of workers.
Design a compressor venting and noise reduction pipeline, including a bend, a diversion pipeline and a silencer. The bend changes the direction of medium flow, the diversion pipeline disperses the medium flow velocity, and a spiral guide device is set in the silencer to extend the medium flow path and consume kinetic energy to reduce noise.
It significantly reduces high-frequency noise generated by high-speed gas impacting the pipe wall or outlet, reduces safety risks for on-site personnel, and improves noise reduction effect.
Smart Images
Figure CN224282863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline technology, and in particular to a compressor sewage discharge and venting noise reduction pipeline and its noise reduction system. Background Technology
[0002] During operation, shale gas booster compressors require regular cleaning of accumulated impurities and liquids through a drain line to ensure stable operation. In emergencies, the compressor can quickly release pressure through the exhaust line to prevent overpressure damage. However, the high-pressure gas flowing at high speed within the pipeline during draining and venting generates significant aerodynamic noise. This noise not only affects the site environment but may also harm the hearing health of staff. Utility Model Content
[0003] The purpose of this invention is to overcome the problem in the existing technology that the noise generated by the rapid depressurization during shale gas discharge is too loud and can easily damage the hearing of workers. This invention provides a compressor discharge and venting noise reduction pipeline and a noise reduction system.
[0004] In a first aspect, the present invention provides a compressor venting and noise reduction pipeline, comprising: an exhaust pipeline, a bend in the downstream direction of the exhaust pipeline, a branch pipeline in the downstream direction of the bend pipeline, an output pipeline connected in the downstream direction of the branch pipeline, and a silencer connected in the downstream direction of the output pipeline, the silencer including a spiral flow guiding device.
[0005] This utility model relates to a compressor venting and noise reduction pipeline. A bend is installed downstream of the exhaust pipeline to change the flow direction of the medium, reducing the impact force of straight discharge. A branch line is also installed downstream of this bend, dispersing the medium discharged from the bend into multiple branches, thereby reducing the flow velocity of the medium within the pipeline and decreasing noise. The branch line is connected to a silencer via an output pipeline. This silencer contains a spiral flow guide device, which extends the flow path of the medium after it flows into the silencer, reducing its flow velocity and consuming some of its kinetic energy. This reduces the noise generated by the medium colliding with the pipe wall during discharge, thus lowering the safety risk for on-site personnel.
[0006] Preferably, the bend includes several bends, and the outlet of each bend is connected to the inlet of the adjacent bend.
[0007] By arranging multiple bends in series, the gas undergoes several turns during its flow, gradually reducing its velocity and preventing the impact noise caused by the direct, high-speed ejection of high-pressure gas. Each bend also weakens the kinetic energy of the gas flow, thereby reducing the overall noise level.
[0008] Preferably, the number of bending sections is two.
[0009] Preferably, the diversion line includes a first branch pipe, one end of which is connected to the bend and the other end of which is connected to the output line; the diversion line also includes a second branch pipe, one end of which is connected to the bend and the other end of which is connected to the output line; the diversion line also includes a third branch pipe, one end of which is connected to the output line and the other end of which is connected to the bend.
[0010] Preferably, the diameter of the output pipeline is larger than the diameter of the exhaust pipeline.
[0011] Preferably, the muffler includes a pipe body, and the spiral guide device is connected to the inner wall of the pipe body.
[0012] Preferably, the spiral guide device includes a main rod, which is coaxially arranged with the tube body, and a plurality of spiral blades are connected to the outer wall of the main rod, which are connected sequentially along the axial direction of the main rod.
[0013] Guided by the spiral blades, the gas rotates along the axis of the main rod as it flows through the silencer, transforming the high-speed linear airflow into a swirling flow. This lengthens the gas flow path, increases flow resistance, and gradually consumes the kinetic energy of the gas, thereby reducing the flow velocity and venting noise.
[0014] Preferably, the inner edge of each of the spiral blades is connected to the main rod, and the outer edge of the spiral blades is connected to the inner wall of the tube body.
[0015] Preferably, each of the spiral blades is provided with a flow guiding surface, which is used to guide the medium inside the silencer.
[0016] Traditional direct-flow exhaust systems are prone to generating high-frequency turbulent noise, while the guide surface allows the flowing medium to transition smoothly along the blade surface, guiding the airflow to be more uniform, thereby reducing the formation of turbulent zones, reducing aerodynamic noise, and improving overall noise reduction performance.
[0017] Preferably, the exhaust pipe, the bend, the branch pipe, the output pipe, and the outer wall of the muffler are all fitted with a sound-absorbing layer.
[0018] By setting up a sound-absorbing layer, some noise can be isolated when the medium inside the pipe collides with the pipe wall.
[0019] Preferably, the sound-absorbing layer includes sound-absorbing cotton and sound-insulating felt.
[0020] In a second aspect, the present invention provides a noise reduction system, including the above-mentioned compressor venting and noise reduction pipeline, and also including a compressor, wherein the end of the exhaust pipeline away from the bend is connected to the compressor.
[0021] This invention relates to a noise reduction system. During compressor operation, the high exhaust velocity and pressure typically generate strong aerodynamic noise. By connecting the compressor to an exhaust pipe, bend, branch pipe, output pipe, and a silencer, the system can progressively diffuse, divide, and guide the high-speed airflow, significantly reducing high-frequency noise generated by the high-speed impact of gas against the pipe wall or outlet. The helical guide device within the silencer, through a main rod and multiple helical blades arranged around its axis, guides the passing gas, causing the high-speed gas to spiral upwards or downwards along the pipe. This extends the gas's flow path within the pipe, weakens the kinetic energy conversion rate, and effectively suppresses noise caused by turbulence, resulting in significant noise reduction.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] 1. This utility model provides a compressor venting and noise reduction pipeline. By setting a bend in the downstream direction of the exhaust pipeline, the flow direction of the medium is changed by the bend, weakening the impact force of straight discharge. Furthermore, a diversion pipeline is set downstream of the bend, which disperses the medium discharged from the bend into multiple branches, thereby reducing the flow velocity of the medium in the pipeline and reducing noise. The diversion pipeline is connected to a silencer through the output pipeline. The silencer is equipped with a spiral flow guiding device, which extends the flow path of the medium after it flows into the silencer, weakens the flow velocity of the medium, and consumes some of the kinetic energy of the medium during flow, thereby reducing the noise generated by the medium colliding with the pipe wall during discharge and reducing the safety risk to on-site personnel.
[0024] 2. This utility model provides a noise reduction system. During operation, the compressor has a high exhaust velocity and high pressure, which is usually accompanied by strong aerodynamic noise. By connecting the exhaust pipe, bend, branch pipe, output pipe and silencer noise reduction pipeline to the compressor, the high-speed airflow can be diffused, pressure divided and guided step by step, which can significantly reduce the high-frequency noise generated by the high-speed gas impacting the pipe wall or the outlet end. The spiral guide device arranged in the silencer guides the gas through the main rod and multiple spiral blades arranged around the axis of the main rod, so that the high-speed gas spirals up or down along the pipe, prolongs the flow path of the gas in the pipe, weakens the kinetic energy conversion rate of the gas, effectively suppresses the noise caused by turbulence, and plays a significant role in noise reduction. Attached Figure Description
[0025] Figure 1This is a schematic diagram of the compressor's sewage discharge and noise reduction pipeline of this utility model.
[0026] Figure 2 This is a top view of the noise reduction and booster system of this utility model.
[0027] Figure 3 This is a schematic diagram of the silencer of this utility model;
[0028] Figure 4 This is a front view structural diagram of the muffler of this utility model;
[0029] Figure 5 This utility model Figure 4 AA section view in the middle;
[0030] Figure 6 This is a schematic diagram of the spiral flow guiding device of this utility model;
[0031] Figure 7 This is a schematic diagram of the sound-absorbing layer of this utility model.
[0032] The markings in the diagram are: 1-exhaust pipe; 2-bend; 21-bend section; 3-branch pipe; 31-first branch pipe; 32-second branch pipe; 33-third branch pipe; 4-output pipe; 5-silencer; 51-spiral guide device; 511-main rod; 512-spiral blade; 5121-guide surface; 52-pipe body; 6-sound-absorbing layer; 7-compressor. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0039] Example 1
[0040] like Figure 1 , Figure 2 and Figure 6As shown, a compressor venting and noise reduction pipeline includes an exhaust pipeline 1. Downstream of the exhaust pipeline 1 is a bend 2, which changes the flow direction of the medium discharged from the exhaust pipeline 1, reducing the impact force during discharge. Downstream of the bend 2 is a branch pipeline 3, which divides the medium flowing out of the bend 2 into several branches, thereby reducing the flow velocity of the medium in a single branch pipeline. Downstream of the branch pipeline 3 is an output pipeline 4, where the medium in a single branch pipeline converges and flows into a silencer 5. The silencer 5 is equipped with a spiral guide device 51, which has several spiral blades 512. When the flowing medium passes through the spiral guide device 51, the straight airflow is transformed into a swirling flow, extending the flow path of the medium. The spiral shape increases the resistance to the flow of the medium, consuming some of the kinetic energy of the medium and reducing the flow velocity, thereby reducing the noise during venting.
[0041] Furthermore, the diversion line 3 includes a first branch pipe 31, one end of which is connected to the bend 2 and the other end of which is connected to the output line 4. The diversion line 3 also includes a second branch pipe 32, one end of which is connected to the bend 2 and the other end of which is connected to the output line 4. The diversion line 3 also includes a third branch pipe 33, one end of which is connected to the bend 2 and the other end of which is connected to the output line 4.
[0042] This can be understood as follows: after the medium flows out of the bend 2, it begins to split at the connection between the bend 2 and the branch line 3. The split medium flows into the first branch 31, the second branch 32, and the third branch 33 respectively. After flowing through the first branch 31, the second branch 32, and the third branch 33, the flow rate of the medium in each branch decreases, thereby reducing the flow velocity of the medium. After flowing out of the first branch 31, the second branch 32, and the third branch 33, the medium converges at the connection between the output line 4 and the branch line 3. Figure 2 The black hollow arrow in the middle indicates the flow path of the medium.
[0043] In one or more embodiments, the bend 2 includes a plurality of bends 21, and the outlet of each bend 21 is connected to the inlet of its adjacent bend 21.
[0044] Furthermore, the number of bending segments 21 is two, such as... Figure 2 As shown.
[0045] In one or more embodiments, the diameter of the output line 4 is larger than the diameter of the exhaust line 1;
[0046] Furthermore, the diameter of exhaust pipeline 1 is DN65, and the diameter of output pipeline 4 is DN100.
[0047] In one or more embodiments, the muffler 5 includes a tube body 52, and a spiral guide device 51 is connected to the inner wall of the tube body 52.
[0048] Furthermore, the spiral guide device 51 includes a main rod 511, which is coaxially arranged with the pipe body 52. Several spiral blades 512 are connected to the outer wall of the main rod 511. The spiral blades 512 are connected sequentially along the axial direction of the main rod 511. The inner edge of each spiral blade 512 is connected to the main rod 511, and the outer edge of the spiral blade 512 is connected to the inner wall of the pipe body 52. Each spiral blade 512 is provided with a guide surface 5121, which is used to guide the medium inside the silencer 5. Through the guiding action of the spiral blades 512, the gas will rotate along the axial direction of the main rod 511 when flowing through the silencer 5, causing the high-speed linear airflow to transform into a swirling flow, extending the gas flow path, increasing flow resistance, and gradually consuming the kinetic energy of the gas, thereby reducing the flow velocity and reducing venting noise. Furthermore, the guide surface 5121 allows the flowing medium to smoothly transition along the blade surface, guiding the airflow to be more uniform, thereby reducing the formation of turbulent zones, reducing aerodynamic noise, and improving overall noise reduction performance. Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown.
[0049] In one or more embodiments, the outer walls of the exhaust pipe 1, the bend 2, the diversion pipe 3, the output pipe 4, and the muffler 5 are all fitted with a sound-absorbing layer 6;
[0050] Optionally, the sound-absorbing layer 6 includes sound-absorbing cotton and sound-insulating felt, such as Figure 7 As shown.
[0051] Optionally, each pipeline is equipped with a flow rate valve to monitor the flow rate of the medium in each pipeline.
[0052] Example 2
[0053] like Figure 2 The illustrated embodiment 2 is a noise reduction system, including a compressor venting and noise reduction pipeline as in embodiment 1, and also includes a compressor 7, with the end of the exhaust pipeline 1 away from the bend 2 connected to the compressor 7.
[0054] The above are merely preferred embodiments of the present utility model and are 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. A compressor venting and noise reduction pipeline, characterized in that, include: An exhaust pipe (1) is provided with a bend (2) in the downstream direction of the exhaust pipe (1), a diversion pipe (3) is provided in the downstream direction of the bend (2), an output pipe (4) is connected in the downstream direction of the diversion pipe (3), and a muffler (5) is connected in the downstream direction of the output pipe (4). The muffler (5) includes a spiral guide device (51).
2. The compressor venting and noise reduction pipeline according to claim 1, characterized in that, The bend (2) includes several bends (21), and the outlet of each bend (21) is connected to the inlet of the adjacent bend (21).
3. The compressor venting and noise reduction pipeline according to claim 2, characterized in that, The diversion line (3) includes a first branch pipe (31), one end of which is connected to the bend pipe (2) and the other end of which is connected to the output line (4); the diversion line (3) also includes a second branch pipe (32), one end of which is connected to the bend pipe (2) and the other end of which is connected to the output line (4); the diversion line (3) includes a third branch pipe (33), one end of which is connected to the output line (4) and the other end of which is connected to the bend pipe (2).
4. The compressor venting and noise reduction pipeline according to claim 1, characterized in that, The diameter of the output pipeline (4) is larger than that of the exhaust pipeline (1).
5. A compressor venting and noise reduction pipeline according to claim 1, characterized in that, The silencer (5) includes a tube body (52), and the spiral guide device (51) is connected to the inner wall of the tube body (52).
6. A compressor venting and noise reduction pipeline according to claim 5, characterized in that, The spiral guide device (51) includes a main rod (511), which is coaxially arranged with the tube body (52). A number of spiral blades (512) are connected to the outer wall of the main rod (511), and the spiral blades (512) are connected sequentially along the axial direction of the main rod (511).
7. A compressor venting and noise reduction pipeline according to claim 6, characterized in that, The inner edge of each of the spiral blades (512) is connected to the main rod (511), and the outer edge of the spiral blades (512) is connected to the inner wall of the tube body (52).
8. A compressor venting and noise reduction pipeline according to claim 7, characterized in that, Each of the spiral blades (512) is provided with a guide surface (5121) for guiding the medium inside the silencer (5).
9. A compressor venting and noise reduction pipeline according to any one of claims 1-8, characterized in that, The outer walls of the exhaust pipe (1), the bend pipe (2), the diversion pipe (3), the output pipe (4), and the muffler (5) are all fitted with a sound-absorbing layer (6).
10. A noise reduction system, characterized in that, The compressor discharge and noise reduction pipeline according to any one of claims 1-9 further includes a compressor (7), wherein the end of the discharge pipeline (1) away from the bend (2) is connected to the compressor (7).