Multi-field coupling synergistic natural gas coalescing, separating and filtering device

Abstract

The invention belongs to the technical field of natural gas filtration, and particularly discloses a multi-field coupling synergistic natural gas coalescence, separation and filtration device which comprises a shell body, a vibration generator, a sound wave generator, a magnetic field generator, a filter element body and an integrated control module. A cavity is formed in the shell body, an air inlet and an air outlet which are communicated with the cavity are formed in the shell body, the filter element body is mounted in the cavity, and the interior of the filter element body is communicated with the air outlet; a hollow interlayer is arranged between the shell body and the cavity, and the magnetic field generator and the sound wave generator are both arranged in the hollow interlayer; the vibration generator is arranged on the filter element body; the integrated control module comprises a control unit. By means of the structural design, sound-magnetism-vibration multi-field synergistic interaction is achieved, the limitation of a single physical field is broken through, the self-cleaning function of the filter element body is effectively achieved, the blocking speed of pores of the filter element body is decreased, pressure loss is reduced, and the service life of the filter element body is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of natural gas filtration technology, and more specifically, relates to a natural gas coalescence, separation and filtration device with multi-field coupling and synergistic efficiency enhancement. Background Art

[0002] Natural gas is a key fuel for equipment such as gas turbines, and its cleanliness is crucial to the reliable operation of these equipment. When filtering natural gas, it is crucial not only to ensure high filtration efficiency and cleanliness requirements, but also to minimize pressure loss and power consumption.

[0003] Traditional natural gas coalescence and separation filtration systems suffer from significant filter element clogging and pressure drop issues. Over time, contaminant particles accumulate on the filter element's surface, clogging the internal fiber pores and increasing resistance to natural gas flow. When the alarm pressure differential is reached, the filter element must be replaced. This requires multiple steps, including system downtime, nitrogen exchange, filter element disassembly and installation, air exchange, leak testing, and restarting the system, all of which consume significant labor and material resources. Especially for high-precision filters, the pressure resistance increases dramatically over time, requiring higher power consumption from downstream power equipment to maintain operation. This also shortens the filter element replacement cycle, significantly increasing the equipment's operating and maintenance costs. Furthermore, traditional natural gas coalescence and separation filtration systems rely on a single physical field to achieve particle separation, resulting in problems such as easy filter element clogging, high pressure drop, and high maintenance costs. Furthermore, traditional filter elements lack self-cleaning capabilities and are prone to failure in high-pressure or high-humidity environments. Summary of the Invention

[0004] In response to the defects of the existing technology, the present application provides a natural gas agglomeration and separation filtration device with multi-field coupling and synergistic efficiency enhancement, aiming to solve the problems of traditional natural gas filtration devices such as easy clogging of the filter element, rapid increase in pressure loss, high maintenance cost, and the problem that the filter element has no self-cleaning function and is prone to failure.

[0005] The present application provides a multi-field coupling synergistically enhanced natural gas coalescence and separation filtering device, which specifically includes an outer shell body, a vibration generator, an acoustic wave generator, a magnetic field generator, a filter element body and an integrated control module; a cavity is provided inside the outer shell body, an air inlet and an air outlet connected to the cavity are provided on the outer shell body, the filter element body is installed in the cavity and the interior of the filter element body is connected to the air outlet, and the natural gas to be treated passes through the air inlet, the filter element body and the air outlet in sequence to achieve filtration; a hollow interlayer is provided between the outer shell body and the cavity, the magnetic field generator and the acoustic wave generator are both provided in the hollow interlayer so that an acoustic field and a magnetic field are formed inside the cavity for causing pollutant particles to coalesce; the vibration generator is provided on the filter element body to generate periodic pulse vibration; the integrated control module includes a control unit, which is connected to the vibration generator, the acoustic wave generator and the magnetic field generator to achieve dynamic parameter adjustment.

[0006] The above technical solutions conceived by the present application are compared with the existing technology. Since the present application constructs a controllable acoustic field and magnetic field inside the shell body, the acoustic-magnetic coupling field effect can be used to enhance the agglomeration ability of pollutant particles, so that when the metal pollutant particles and other impurities in the gas approach the filter element body, they will move toward the agglomerated particle group that has been deposited on the surface of the filter element body, rather than moving toward the gaps between the particles; in addition, the vibration generator in the device can generate periodic mechanical vibrations. When the filter element body is subjected to vibration, micro-vibrations will be generated, thereby causing the large pollutant particles on the surface of the filter element body to be peeled off, realizing the online self-cleaning function of the filter element body, and being able to achieve the beneficial effects of delaying the clogging rate of the filter element body pores, reducing pressure loss and extending the service life of the filter element body.

[0007] As a further preference, the shell body and the cavity are both cylindrical structures, the hollow interlayer is an annular structure, and the shell body, the cavity and the hollow interlayer are located on the same axis.

[0008] As a further preference, the inner wall of the hollow interlayer away from the cavity is coated with a sound wave reflecting coating.

[0009] As a further preferred embodiment, the sound wave generator includes a plurality of sound wave generating units, which are arranged in an array in the hollow interlayer along the axial direction of the shell body, and the sound wave generating units are arranged around the side wall of the hollow interlayer close to the cavity, and the distance between two adjacent sound wave generating units is 200mm-400mm.

[0010] As a further preference, the sound field is a low-frequency uniform standing wave sound field, the sound field frequency of which is 50 Hz-100 Hz, and the sound field intensity of which is 125 dB(A)-130 dB(A).

[0011] As a further preference, the sound field is composed of a composite of a low-frequency sound field and a high-frequency sound field.

[0012] As a further preference, the magnetic field generator includes an electromagnetic coil, which is wound around a peripheral wall of the hollow interlayer close to the cavity to form a gradient magnetic field.

[0013] As a further preference, the integrated control module also includes a pressure differential sensor for monitoring the pressure differential changes upstream and downstream of the filter element body, a vibration accelerometer for detecting the vibration acceleration of the vibration generator, a particle concentration monitor for detecting the concentration of pollutant particles, and a magnetic field strength gradient monitor for detecting the magnetic field strength in the cavity.

[0014] As a further preference, the cavity extends to one end of the shell body to form an opening, a sealing cover plate is provided at the opening, and the shell body is further provided with a lifting assembly for connecting the sealing cover plate.

[0015] As a further preferred embodiment, the lifting assembly includes a rotating frame and a screw, the rotating frame is rotatably connected to the outer shell body and the rotating axis is parallel to the axis of the outer shell body, the screw is threadedly connected to the rotating frame and the screw is parallel to the axis of the outer shell body, and the bottom end of the screw is connected to the center part of the sealing cover plate.

[0016] In general, the above technical solutions conceived by this application have the following technical advantages compared with the existing technologies: 1. This application significantly improves the agglomeration efficiency of pollutant particles through the synergistic coupling of acoustic and magnetic fields. The superimposed vibration field effect achieves a multi-field synergy of acoustic, magnetic, and vibration, breaking through the limitations of a single physical field and effectively realizing the self-cleaning function of the filter element. Furthermore, the integrated control module dynamically adjusts the frequency and intensity of the acoustic field and the gradient strength of the magnetic field, achieving adaptive matching of acoustic and magnetic parameters to adapt to changing operating conditions. This intelligent control mechanism effectively reduces the rate of pore clogging within the filter element, significantly extending the filter element's service life and significantly reducing the frequency of filter element replacement.

[0017] 2. In this application, the housing and cavity are both cylindrical, with the hollow interlayer being a circular ring structure. This ensures uniform distribution of the acoustic and magnetic fields, simplifies the overall structure of the device, and improves space utilization efficiency.

[0018] 3. The provision of the acoustic reflective coating in this application further enhances the reflection and standing wave formation effects of the sound field, reduces the dissipation of sound waves, reduces the energy loss of sound waves, improves the utilization efficiency of the sound field, and reduces environmental noise pollution.

[0019] 4. The service life of the filter element body of this application is increased, which greatly extends the equipment shutdown cycle for filter element replacement, reduces equipment operation and maintenance costs, and saves material costs.

[0020] 5. Compared with traditional natural gas filters, the equipment operating noise of this application is lower, and the filter element body can be biodegraded after use and disposal, which is more in line with environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the filtering device provided by an embodiment of the present application from a first perspective; Figure 2 This is a schematic diagram of the overall structure of the filtering device provided by an embodiment of the present application from a second perspective; Figure 3 It is a schematic diagram of the cross-sectional structure of the filtering device provided in an embodiment of the present application.

[0022] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1. Shell body; 11. Cavity; 12. Air inlet; 13. Air outlet; 14. Hollow interlayer; 15. Inspection port; 16. Vent pipe; 17. Drain pipe; 2. Vibration generator; 3. Sound wave generator; 31. Sound wave generating unit; 4. Magnetic field generator; 41. Electromagnetic coil; 5. Filter element body; 6. Integrated control module; 7. Sealing cover; 8. Lifting assembly; 81. Rotating frame; 82. Screw. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0024] Reference Figure 1-Figure 3This application discloses a multi-field coupling synergistically enhanced natural gas coalescing and separation filtration device. This device, through the synergistic action of multiple physical fields, effectively removes contaminants from the filter element surface, improves filtration efficiency, reduces pressure loss and energy consumption, and extends the life of the filter element. Specifically, the device integrates acoustic-magnetic-vibration multi-field synergistic coupling, intelligent monitoring and control, and a modular design. It is suitable for high-purity industrial natural gas filtration scenarios such as gas turbines, gas-fired power plants, petrochemical power plants, and urban gas transmission and distribution systems. The filtration device effectively utilizes the principle of acoustic agglomeration, a process in which a high-intensity sound field is used to induce collision and agglomeration of fine particles suspended in a gas. When sound waves propagate through the gas, they produce periodic compression and rarefaction regions. The particles are subjected to relative motion in the sound field due to changes in sound pressure. As the frequency of collisions between particles increases, they adhere to form larger agglomerates. Over time, the fine particles gradually agglomerate into larger particles, causing the particle distribution density function to shift from small to large sizes, thereby increasing the particle size.

[0025] The filtering device comprises a housing 1, a vibration generator 2, an acoustic wave generator 3, a magnetic field generator 4, a filter element 5, and an integrated control module 6. The housing 1 is the main frame of the entire filtering device and adopts a cylindrical barrel structure. This structural design not only has good mechanical strength and can withstand a certain gas pressure, but also has high internal space utilization, providing ample space for the installation of other components and the flow of gas. A cavity 11 is provided within the housing 1. It is the core area of ​​gas filtration and provides the necessary space for the circulation and purification of gas. An air inlet 12 and an air outlet 13 are provided on both sides of the housing 1, respectively, communicating with the cavity 11. The air inlet 12 and the air outlet 13 are passages for gas to enter and exit the device. The air inlet 12 is located on one side and is used to introduce the gas to be filtered into the cavity 11. A downward-angled guide plate is fixedly connected to the portion of the cavity 11 near the air inlet 12. The air outlet 13 is located on the other side, through which the filtered and purified gas is discharged, thus achieving gas filtration.

[0026] To facilitate the installation and replacement of the filter element body 5, the cavity 11 extends to one end of the outer shell body 1, forming an opening. The opening of the filter element body 5 is installed inside the cavity 11, making the replacement operation of the filter element body 5 more convenient and eliminating the need to disassemble the entire device, greatly reducing maintenance costs and time. The opening of the outer shell body 1 is equipped with a sealing cover 7, whose main function is to close the opening and prevent gas from leaking from the opening during the filtration process, thereby ensuring the sealing and filtration efficiency of the device. In order to further enhance the sealing between the sealing cover 7 and the outer shell body 1, a circle of rubber sealing rings is provided between the two. The rubber sealing ring has good elasticity and sealing performance, and can effectively fill the tiny gap between the two to prevent gas leakage. Even during long-term use, it can maintain a stable sealing effect. In addition, the outer shell body 1 is also equipped with a set of lifting components 8, which are used to connect the sealing cover 7 to facilitate the opening and closing of the opening.

[0027] Furthermore, the shell body 1 is also provided with a plurality of vent pipes 16 connected to the interior of the cavity 11. The main function of the vent pipes 16 is to discharge excess gas or impurity gas that may be generated in the cavity 11 during the operation of the device, so as to prevent these gases from accumulating in the cavity 11 and affecting the filtering effect or causing potential harm to the device. For example, in certain filtering processes, some volatile gases or excess gases generated by pressure changes may be generated. These gases can be discharged in time through the vent pipes 16 to maintain the pressure balance and gas composition stability in the cavity 11. In addition, the shell body 1 is also provided with an inspection port 15 connected to the interior of the cavity 11. The inspection port 15 is provided to facilitate regular inspection and maintenance of the interior of the device. During long-term use, the filter element may be clogged, components may be worn, or other faults may occur inside the device. The inspection port 15 can be used to inspect the internal components of the cavity 11 to ensure that the device is always in good operating condition and to extend the service life of the device. The housing 1 is also provided with a drain pipe 17 connected to the bottom of the cavity 11. Impurities, dirt, or liquids accumulated at the bottom of the cavity 11 can be discharged through the drain pipe 17. During the gas filtration process, pollutant particles on the filter element 5 and impurities contained in the gas will settle to the bottom of the cavity 11 under the action of gravity. Or when processing humid gas, liquid may condense and accumulate at the bottom. These impurities and liquids are regularly discharged through the drain pipe 17, thereby maintaining the cleanliness of the interior of the cavity 11 and preventing excessive accumulation of impurities that affect the flow and filtration of the gas. It also facilitates cleaning and maintenance of the device. The bottom of the cavity 11 is designed to be semicircular. The semicircular bottom structure is conducive to the accumulation and discharge of impurities. Due to its relatively smooth shape, impurities are more likely to slide towards the drain pipe 17 under the action of gravity, making it easier to discharge them through the drain pipe 17. At the same time, the semicircular bottom also makes the gas flow inside the cavity 11 smoother, reducing the stagnation and vortex of gas at the bottom of the cavity 11, and improving the efficiency and uniformity of gas filtration.

[0028] In this embodiment, the specific structure of the lifting assembly 8 includes a rotating frame 81 and a screw 82. The rotating frame 81 is connected to the outer shell body 1. Specifically, a bracket is fixedly connected to the outer wall of the outer shell body 1. The rotating frame 81 is connected to the outer shell body 1 through the bracket and can be rotatably connected to the bracket. The rotating axis of the rotating frame 81 remains parallel to the axis of the outer shell body 1, and the screw 82 is threadedly connected to the rotating frame 81, and its axial direction is also parallel to the axis of the outer shell body 1. The bottom end of the screw 82 is connected to the center of the sealing cover plate 7. Specifically, the center of the sealing cover plate 7 is fixedly connected to a hanging ring, and the bottom end of the screw 82 is fixedly connected to a U-shaped connector. The opening of the U-shaped connector is downward and is penetrated by a bolt. The bolt is penetrated by the hanging ring. By rotating the screw 82, the sealing cover plate 7 can be driven to rise. Subsequently, by rotating the rotating frame 81, the position of the sealing cover plate 7 can be moved, which is convenient for replacing the filter element body 5 or maintaining the inside of the device.

[0029] In this filtration device, to facilitate the installation and positioning of the filter element 5, a mounting base is fixedly connected to the interior of the cavity 11, and the filter element 5 is fixedly mounted on this mounting base, ensuring its stability and reliability during operation. The design of the mounting base enables precise communication between the interior of the filter element 5 and the air outlet 13 of the housing body 1. At the same time, the filter element 5 and the cavity 11 are located on the same axis, ensuring smooth flow of gas during the filtration process and avoiding problems such as reduced filtration efficiency or damage to the filter element 5 due to irregular gas flow. When the natural gas to be processed enters the filtration device, it first enters the cavity 11 through the air inlet 12, and then flows through the filter element 5 and the air outlet 13 in sequence. During this process, the filter element 5 can effectively filter out pollutant particles in the natural gas, ensuring that the filtered natural gas meets the required cleanliness standards. The filter element 5 utilizes advanced biodegradable materials, primarily composed of nanocellulose or polylactic acid (PLA)-based composite materials. Nanocellulose is a natural material with excellent mechanical properties and biocompatibility, while polylactic acid (PLA) is a biodegradable polymer widely used in environmental protection. The combination of these two materials ensures that the filter element 5 not only has excellent filtration performance but also biodegrades after disposal, avoiding the environmental problems associated with traditional filter materials and meeting the requirements of sustainable development. To further enhance the filtration efficiency of the filter element 5, a magnetic material is embedded within it. This embedded magnetic material enhances particle aggregation efficiency, allowing pollutant particles in natural gas to aggregate more easily through magnetic forces, resulting in more effective interception and adsorption by the filter element 5.

[0030] In order to further enhance the filtration effect of natural gas, the present device is provided with a hollow interlayer 14 between the outer shell 1 and the cavity 11. The hollow interlayer 14 is constructed in accordance with the design standards of a pressure vessel and is designed according to the actual pressure conditions inside the cavity 11 to ensure its stability and safety during operation. The magnetic field generator 4 and the acoustic wave generator 3 are both installed inside the hollow interlayer 14 and work in conjunction with each other, thereby forming a uniform acoustic field and a gradient magnetic field inside the cavity 11. This special composite field environment can effectively promote the agglomeration of pollutant particles in the natural gas, thereby improving the filtration efficiency. The integrated control module 6 includes a control unit, which is connected to the vibration generator 2, the acoustic wave generator 3, and the magnetic field generator 4 to achieve dynamic parameter adjustment. This dynamic adjustment allows the device to flexibly adjust the working state of each component according to different filtration requirements and working conditions, thereby further improving the agglomeration efficiency of pollutant particles, effectively avoiding clogging of the filter element 5, and ensuring the efficiency and stability of the filtration process. During filtration, natural gas flows in and out through the filter element 5. The synergistic effect of acoustic-magnetic coupling deflects pollutant particles entrained in the natural gas toward the particle agglomerates already deposited on the surface of the filter element 5, rather than toward the spaces between the particles. This effectively reduces the rate at which the pores within the filter element 5 become clogged. Furthermore, a vibration generator 2 is fixedly mounted on the top end cap of the filter element 5 to generate periodic pulse vibrations with a frequency of 10Hz-50Hz, an amplitude of 2mm-8mm, a period of 0.05 seconds, and a horizontal pulse vibration direction. The vibration generator 2 is located at the top of the central connecting rod of the filter element 5. The aggregated pollutant particles on the filter element 5 are peeled off and fall off under the vibration, achieving self-cleaning of the filter element 5.

[0031] In this embodiment, the housing body 1 and cavity 11 both employ cylindrical structures, while the hollow interlayer 14 is an annular structure. All three are located on the same axis. This design not only ensures the stability of the overall structure but also provides a foundation for the uniform distribution of the acoustic and magnetic fields. The inner wall of the hollow interlayer 14, facing away from the cavity 11, is coated with an acoustic reflective coating. This coating not only enhances sound wave reflection, reduces sound wave dissipation, and minimizes sound wave energy loss, but also reduces environmental noise pollution. The acoustic reflective coating utilizes a composite structure of a multi-layer phononic crystal metamaterial structure (such as a periodic phononic crystal) and a porous sound-absorbing layer. This coating achieves directional reflection and localized resonance for sound waves of varying frequencies, increasing reflection efficiency by over 30%. This not only enhances sound wave reflection and effectively reduces sound wave energy loss, but also suppresses noise to below 80 dB(A), ensuring the stability of the sound field within the cavity 11. Specifically, the sound wave generator 3 includes a plurality of sound wave generating units 31, which surround the peripheral wall of the hollow interlayer 14 close to the cavity 11. The plurality of sound wave generating units 31 are arranged in an array in the hollow interlayer 14 along the axial direction of the shell body 1. The spacing between two adjacent sound wave generating units 31 is 200mm-400mm. In this embodiment, the sound wave generating unit 31 cooperates with the sound wave reflecting coating to form a low-frequency uniform standing wave sound field inside the cavity 11. The sound field frequency is 50Hz-100Hz, and the sound field intensity is 125dB(A)-130dB(A). In another feasible embodiment, the sound field is composed of a low-frequency sound field and a high-frequency sound field. Specifically, by adjusting the arrangement and number of the sound wave generating units 31, a composite sound wave is formed inside the cavity 11, such as a combination of a low frequency of 50Hz and a high frequency of 10kHz, wherein the low-frequency sound field guides the aggregation of large particles, and the high-frequency sound field suppresses the diffusion of small particles, thereby improving the interception efficiency of particles of different particle sizes (0.1μm-10μm), which is particularly suitable for PM2.5 ultrafine particle filtration scenarios.

[0032] Furthermore, in this embodiment, the magnetic field generator 4 includes an electromagnetic coil 41, which is wound around the peripheral wall of the hollow interlayer 14 near the cavity 11 to form a gradient magnetic field. The array of electromagnetic coils 41 is unevenly distributed along the airflow direction (i.e., the axial direction of the cavity 11). This uneven distribution design causes the magnetic field strength to show a gradient change at different positions, specifically in the range of 0.1T to 1T. Through this magnetic field strength gradient design, the separation effect of pollutant particles of different particle sizes can be effectively enhanced. The gradient magnetic field generated by the electromagnetic coil 41 will form an environment with gradually changing magnetic field strength inside the cavity 11. The charged pollutant particles are deflected by the Lorentz force in the magnetic field. This deflection mechanism enables the pollutant particles to more effectively contact and be adsorbed on the surface of the filter element 5 when passing through the filter element body 5. At the same time, the magnetic field generator 4 and the sound wave generator 3 work together to form an acoustic-magnetic coupling effect. The sound field promotes particle aggregation through the action of sound waves, while the gradient magnetic field guides the migration path of charged particles through the Lorentz force. By dynamically adjusting the magnetic field intensity gradient, the migration rate of charged particles can be changed, further promoting the accelerated aggregation and directional adsorption of pollutant particles. This synergistic mechanism not only improves the filtration efficiency, but also significantly reduces the clogging rate of the filter element body 5.

[0033] Furthermore, the integrated control module 6 also includes a differential pressure sensor for monitoring the changes in the differential pressure upstream and downstream of the filter element body 5. The differential pressure is an important indicator for measuring the degree of blockage of the filter element body 5. By monitoring the changes in the differential pressure in real time, it can be discovered in time whether the filter element body 5 needs to be cleaned or replaced; a vibration accelerometer for detecting the vibration acceleration of the vibration generator 2, which ensures the normal operation of the vibration generator 2 by monitoring the vibration acceleration, and optimizes the self-cleaning effect of the filter element body 5 by adjusting the vibration frequency and intensity; a particle concentration monitor for detecting the concentration of pollutant particles, which evaluates the filtering effect by real-time monitoring the particle concentration, and adjusts the sound field and magnetic field parameters as needed to improve the filtering efficiency; a magnetic field intensity gradient monitor for detecting the magnetic field strength in the cavity 11, which ensures the normal operation of the magnetic field generator 4 by monitoring the magnetic field intensity gradient, and adjusts the magnetic field parameters as needed to optimize the filtering effect; these monitoring data are transmitted to the integrated control module 6 in real time to provide a basis for dynamic regulation.

[0034] The integrated control module 6 takes as input parameters the pressure gradient, magnetic field intensity gradient, vibration spectrum, and acoustic field frequency and intensity deviations, and outputs acoustic wave frequency adjustment values ​​(±10Hz) and intensity adjustment values ​​(±5dB). Through intelligent dynamic control, the integrated control module 6 dynamically adjusts the acoustic and magnetic field parameters, responding to the rate of change in the pressure differential to optimize energy consumption and filtration efficiency. This intelligent dynamic control allows the integrated control module 6 to adjust the acoustic and magnetic field parameters in real time based on monitoring data. When the differential pressure sensor detects a sudden increase in the upstream and downstream pressure differential of the filter element 5, the integrated control module 6 determines that the filter element 5 is clogged. In this case, the integrated control module 6 dynamically adjusts the acoustic wave frequency and intensity, as well as the magnetic field intensity gradient, to enhance the agglomeration of pollutant particles, thereby reducing the pressure differential and improving filtration efficiency. The integrated control module 6 also dynamically adjusts the vibration frequency and intensity of the vibration generator 2 based on data from the vibration accelerometer, causing pollutant particles to agglomerate and fall off the surface of the filter element 5, thereby optimizing the self-cleaning effect of the filter element 5. The integrated control module 6 can also dynamically adjust the sound field and magnetic field parameters according to the data of the particle concentration monitor to improve the interception efficiency of the filter element body 5 for pollutant particles of different particle sizes. When the particle concentration monitor detects a high particle concentration, the integrated control module 6 will adjust the sound field frequency, sound field intensity and magnetic field intensity gradient to enhance the particle aggregation ability.

[0035] The multi-field coupled synergistically enhanced natural gas coalescence and separation filtering device of the present application applies an acoustic field and a magnetic field inside the cavity 11 of the outer shell body 1. The acoustic field and the magnetic field are coupled and synergistically act to induce a secondary flow on the surface of the filter element body 5, thereby improving the coalescence efficiency of pollutant particles in the natural gas. During filtration, the pollutant particles close to the filter element body 5 are deflected toward the particle group already deposited on the surface of the filter element body 5, rather than toward the gaps between the particles, thereby effectively reducing the speed at which the pores of the filter element body 5 are blocked. The vibration generator 2 generates a pulse vibration acting on the filter element body 5 to cause it to generate micro-vibration, thereby causing the pollutant particles on the surface of the filter element body 5 to agglomerate and peel off, thereby achieving self-cleaning of the filter element body 5, and greatly increasing the service life of the filter element body 5 while ensuring high filtration efficiency and low pressure loss.

[0036] It should be understood that expressions such as "include" and "may include" used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "include" and / or "have" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0037] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0039] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0040] It is easy for those skilled in the art to understand that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A multi-field coupling synergistic natural gas coalescence separation and filtration device, characterized in that: It comprises a housing body (1), a vibration generator (2), a sound wave generator (3), a magnetic field generator (4), a filter element body (5) and an integrated control module (6); The shell body (1) has a cavity (11) formed inside, and an air inlet (12) and an air outlet (13) connected to the cavity (11) are formed on the shell body (1). The filter element body (5) is installed in the cavity (11), and the interior of the filter element body (5) is connected to the air outlet (13). The natural gas to be processed passes through the air inlet (12), the filter element body (5) and the air outlet (13) in sequence to achieve filtration. A hollow interlayer (14) is provided between the housing body (1) and the cavity (11), and the magnetic field generator (4) and the sound wave generator (3) are both provided in the hollow interlayer (14) so ​​as to form a sound field and a magnetic field inside the cavity (11) for causing the pollutant particles to agglomerate; The vibration generator (2) is arranged on the filter element body (5) to generate periodic pulse vibration; The integrated control module (6) comprises a control unit, which is connected to the vibration generator (2), the sound wave generator (3) and the magnetic field generator (4) to achieve dynamic parameter adjustment.

2. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The shell body (1) and the cavity (11) are both cylindrical structures, the hollow interlayer (14) is an annular structure, and the shell body (1), the cavity (11) and the hollow interlayer (14) are located on the same axis.

3. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 2, characterized in that: The inner wall of the hollow interlayer (14) on a side away from the cavity (11) is coated with a sound wave reflecting coating.

4. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The sound wave generator (3) comprises a plurality of sound wave generating units (31), which are arranged in an array in the hollow interlayer (14) along the axial direction of the shell body (1). The sound wave generating units (31) are arranged around a side wall of the hollow interlayer (14) close to the cavity (11), and the distance between two adjacent sound wave generating units (31) is 200 mm to 400 mm.

5. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The sound field is a low-frequency uniform standing wave sound field, the sound field frequency is 50Hz-100Hz, and the sound field intensity is 125dB(A)-130dB(A).

6. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The sound field is composed of a low-frequency sound field and a high-frequency sound field.

7. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The magnetic field generator (4) comprises an electromagnetic coil (41), and the electromagnetic coil (41) is wound on a peripheral wall of the hollow interlayer (14) close to the cavity (11) to form a gradient magnetic field.

8. The multi-field coupling synergistic natural gas coalescence separation and filtration device according to claim 1, characterized in that: The integrated control module (6) further comprises a pressure differential sensor for monitoring changes in the pressure differential between upstream and downstream of the filter element body (5), a vibration accelerometer for detecting the vibration acceleration of the vibration generator (2), a particle concentration monitor for detecting the concentration of pollutant particles, and a magnetic field intensity gradient monitor for detecting the magnetic field intensity within the cavity (11).

9. The multi-field coupling synergistically enhanced natural gas coalescence separation and filtration device according to claim 1, characterized in that: The cavity (11) extends to one end of the shell body (1) to form an opening, a sealing cover plate (7) is provided at the opening, and the shell body (1) is also provided with a lifting assembly (8) for connecting the sealing cover plate (7).

10. The multi-field coupling synergistically enhanced natural gas coalescence separation and filtration device according to claim 9, characterized in that: The lifting assembly (8) includes a rotating frame (81) and a screw (82), wherein the rotating frame (81) is rotatably connected to the shell body (1) and the rotating shaft is parallel to the axis of the shell body (1), and the screw (82) is threadedly connected to the rotating frame (81) and the screw (82) is parallel to the axis of the shell body (1), and the bottom end of the screw (82) is connected to the center of the sealing cover plate (7).

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