A multi-field coupling synergistic natural gas coalescence separation filtering device

Abstract

The application belongs to the technical field of natural gas filtration, and specifically discloses a multi-field coupling synergistic natural gas coalescence separation filter device, which comprises a shell body, a vibration generator, a sound wave generator, a magnetic field generator, a filter core body and an integrated control module; a cavity is formed in the shell body, an air inlet and an air outlet are formed in the shell body and communicate with the cavity, the filter core body is installed in the cavity and the inside of the filter core body communicates with the air outlet; a hollow interlayer is arranged between the shell body and the cavity, the magnetic field generator and the sound wave generator are arranged in the hollow interlayer; the vibration generator is arranged on the filter core body; and the integrated control module comprises a control unit. Through the structural design, the sound-magnetic-vibration multi-field synergistic effect is achieved, the limitation of a single physical field is broken, the self-cleaning function of the filter core body is effectively realized, the speed of the pores of the filter core body being blocked is slowed down, the pressure loss is reduced, and the service life of the filter core body is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of natural gas filtration, and more particularly relates to a natural gas coalescence separation filter device with multi-field coupling and synergistic effect. BACKGROUND

[0002] Natural gas is the key fuel for equipment such as gas turbines, and its cleanliness is crucial for the reliable operation of the equipment. When filtering natural gas, not only high filtration efficiency and cleanliness of natural gas should be ensured, but also pressure loss should be reduced and power consumption should be reduced.

[0003] The filter core of the traditional natural gas coalescence separation filter device is prone to blockage and pressure loss. During use, as time goes by, pollutant particles continuously accumulate on the surface of the filter core, thereby blocking the internal fiber pores, resulting in increasing resistance of natural gas passing through the filter core. When the alarm pressure difference is reached, the filter core needs to be replaced, which requires multiple steps such as shutdown, nitrogen replacement, disassembly and assembly of the filter core, air replacement, leakage test, and restart of the machine, and consumes a large amount of manpower and material resources. Especially for filter cores with high filtration precision, the pressure resistance will rise sharply over time, requiring higher power consumption of downstream power equipment to maintain operation, which shortens the replacement cycle of the filter core and greatly increases the use and maintenance cost of the equipment. In addition, the traditional natural gas coalescence separation filter device relies on a single physical field to realize particle separation, and has problems such as easy blockage of the filter core, high pressure loss, and high maintenance cost. At the same time, the traditional filter core lacks self-cleaning function and is prone to failure in high-pressure or high-humidity environments. SUMMARY

[0004] In view of the defects of the prior art, the present application provides a natural gas coalescence separation filter device with multi-field coupling and synergistic effect, aiming to solve the problems of easy blockage of the filter core, rapid pressure loss, high maintenance cost of the traditional natural gas filter device, and the problems of lack of self-cleaning function of the filter core and easy failure.

[0005] The application provides a natural gas coalescing separation filtering device with multi-field coupling synergy, which specifically comprises a shell body, a vibration generator, a sound wave generator, a magnetic field generator, a filter core body and an integrated control module; a cavity is formed in the shell body, an air inlet and an air outlet are formed in the shell body and communicate with the cavity, the filter core body is installed in the cavity and the inside of the filter core body communicates with the air outlet, and the natural gas to be treated passes through the air inlet, the filter core body and the air outlet in sequence to realize filtering; a hollow interlayer is arranged between the shell body and the cavity, the sound wave generator and the magnetic field generator are arranged in the hollow interlayer to form a sound field and a magnetic field in the cavity for coalescing pollutant particles; the vibration generator is arranged on the filter core body to generate periodic pulse vibration; and the integrated control module comprises a control unit which is connected with the vibration generator, the sound wave generator and the magnetic field generator to realize dynamic parameter adjustment.

[0006] Compared with the prior art, the above technical scheme conceived by the application can utilize the sound-magnetic coupling field to strengthen the coalescing ability of pollutant particles, so that the metal pollutant particles and other impurities in the gas move towards the agglomerated particle groups deposited on the surface of the filter core body instead of moving towards the gaps between the particles when the pollutant particles approach the filter core body; in addition, the vibration generator in the device can generate periodic mechanical vibration, and when the filter core body is subjected to vibration, micro-vibration is generated, so that the coalescing of large pollutant particles on the surface of the filter core body is stripped and falls off, realizing the online self-cleaning function of the filter core body and achieving the beneficial effects of delaying the clogging rate of the pores of the filter core body, reducing pressure loss and prolonging the service life of the filter core body.

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

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

[0009] As a further preferred, the sound wave generator comprises a plurality of sound wave generating units, the plurality of sound wave generating units are arranged in an array in the hollow interlayer along the axis direction of the shell body, the sound wave generating units are arranged on 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 preferred, 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).

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

[0012] As a further preferred, the magnetic field generator comprises an electromagnetic coil, which is arranged on the side wall of the hollow interlayer close to the cavity for forming a gradient magnetic field.

[0013] As a further preferred, the integrated control module further comprises a differential pressure sensor for monitoring the differential pressure change between the upstream and downstream of the filter core 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 preferred, the cavity extends to one end of the shell body to form an opening, and a sealing cover plate is arranged 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, the lifting assembly comprises a rotating frame and a screw rod, the rotating frame is rotationally connected to the shell body and the rotation axis is parallel to the axis of the shell body, the screw rod is threadedly connected to the rotating frame and the screw rod is parallel to the axis of the shell body, and the bottom end of the screw rod is connected to the center part of the sealing cover plate.

[0016] Overall, compared with the prior art, the above technical solutions conceived by the present application mainly have the following technical advantages:

[0017] 1. The present application significantly improves the coalescence efficiency of pollutant particles through the synergistic effect of sound field and magnetic field, and adds the effect of vibration field, realizes the synergistic effect of sound-magnetic-vibration multi-field, breaks through the limitation of single physical field, and effectively realizes the self-cleaning function of the filter core body; at the same time, the integrated control module can dynamically regulate the frequency and intensity of the sound field and the gradient intensity of the magnetic field, realize the adaptive matching of the sound-magnetic parameters, to adapt to the working condition changes; this intelligent regulation mechanism can effectively reduce the speed of plugging the pores inside the filter core body, greatly prolong the service life of the filter core body, and significantly reduce the replacement frequency of the filter core body.

[0018] 2. In the present application, the shell body and the cavity are both in cylindrical structure, and the hollow interlayer is in circular ring structure, which ensures the uniform distribution of sound field and magnetic field, and at the same time simplifies the overall structure of the device and improves the space utilization efficiency.

[0019] 3. In the present application, the setting of the sound wave reflection coating further enhances the reflection and standing wave formation effect of the sound field, reduces the dissipation of sound waves, reduces the energy loss of sound waves, improves the utilization efficiency of sound field, and also reduces the noise pollution of the environment.

[0020] 4. The service life of the filter core body is increased, the period of replacing the filter core during equipment downtime is greatly prolonged, the operation and maintenance cost of the equipment is reduced, and the material cost is saved.

[0021] 5. Compared with the traditional natural gas filter, the device has lower running noise, and the filter core body can be biodegraded after being discarded, which is more in line with environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a first perspective view of the overall structure of the filter device provided by the embodiments of the present application;

[0023] Fig. 2 is a second perspective view of the overall structure of the filter device provided by the embodiments of the present application;

[0024] Fig. 3 is a cross-sectional view of the filter device provided by the embodiments of the present application.

[0025] In all the drawings, the same reference signs are used to represent the same elements or structures, wherein:

[0026] 1, housing body; 11, cavity; 12, air inlet; 13, air outlet; 14, hollow interlayer; 15, access opening; 16, diffusion pipe; 17, blowdown pipe; 2, vibration generator; 3, sound wave generator; 31, sound wave generating unit; 4, magnetic field generator; 41, electromagnetic coil; 5, filter core body; 6, integrated control module; 7, sealing cover plate; 8, lifting assembly; 81, rotating frame; 82, screw rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer and more apparent, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0028] REFERENCE Figs. 1-3The application discloses a natural gas coalescing separation filter device with multiple field coupling synergy, which effectively removes pollutants on the surface of a filter core body through the synergistic effect of multiple physical fields, improves filter efficiency, reduces pressure loss and energy consumption, prolongs the service life of the filter core body, and specifically is a natural gas coalescing separation filter device integrating acoustic-magnetic-vibration multiple field synergistic coupling, intelligent monitoring and regulation, and modular design, which is suitable for high-cleanliness industrial natural gas filtering scenes such as gas turbines, gas turbine power plants, electric power petrochemical plants and urban gas transmission and distribution systems. The filter device effectively utilizes the acoustic agglomeration principle, that is, a process of promoting collision and agglomeration of fine particles suspended in gas by using a high-intensity acoustic field. When the acoustic wave propagates in the gas, periodic compression and rarefaction regions are generated, particles in the acoustic field are subjected to the action of acoustic pressure variation and generate relative motion, and with the increase of collision frequency between the particles, the particles adhere to each other to form larger agglomerates. With the passage of time, fine particles gradually agglomerate into larger particles, so that the particle size distribution density function migrates from small size to large size, thereby increasing the particle size.

[0029] The filter device comprises a shell body 1, a vibration generator 2, an acoustic wave generator 3, a magnetic field generator 4, a filter core body 5 and an integrated control module 6. The shell body 1 is the main frame of the whole filter device and adopts a cylindrical barrel structure. The structure design not only has good mechanical strength and can withstand a certain gas pressure, but also has high internal space utilization, thereby providing sufficient space for the installation of other components and the flow of gas. The shell body 1 is internally provided with a cavity 11, which is a core area for gas filtration and provides necessary space for the flow and purification process of gas. The shell body 1 is provided with a gas inlet 12 and a gas outlet 13 which are in communication with the cavity 11. The gas inlet 12 and the gas outlet 13 are channels for the gas to enter and exit the device. The gas inlet 12 is located on one side and is used for introducing the gas to be filtered into the cavity 11. The cavity 11 is fixedly connected with an inclined downward flow guide plate near the gas inlet 12. The gas outlet 13 is located on the other side and is used for discharging the filtered and purified gas, thereby realizing the filtration of the gas.

[0030] In order to facilitate the installation and replacement of the filter core body 5, the cavity 11 extends to one end of the shell body 1, forming an opening, and the filter core body 5 is installed inside the cavity 11, so that the replacement operation of the filter core body 5 is more convenient, without the need to disassemble the entire device, greatly reducing the maintenance cost and time. The opening of the shell body 1 is equipped with a sealing cover plate 7, which mainly serves to close the opening and prevent gas leakage during the filtering process, ensuring the sealing performance and filtering efficiency of the device; in order to further enhance the sealing performance between the sealing cover plate 7 and the shell body 1, a rubber sealing ring is arranged therebetween, which has good elasticity and sealing performance, can effectively fill the small gap between the two, prevent gas leakage, and can maintain stable sealing effect even after long-term use. In addition, the shell body 1 is also equipped with a lifting assembly 8, which is used to connect the sealing cover plate 7 to facilitate the opening and closing of the opening.

[0031] Further, the shell body 1 is also provided with a plurality of diffusion pipes 16 in communication with the inside of the cavity 11. The main function of the diffusion pipes 16 is to discharge the excess gas or impurity gas that may be generated in the cavity 11 during the operation of the device, so as to prevent the accumulation of these gases in the cavity 11, which may affect the filtering effect or cause potential harm to the device. For example, in some filtering processes, some volatile gases or excess gases due to pressure changes may be generated. The diffusion pipes 16 can timely discharge these gases, thereby maintaining the pressure balance and stability of the gas composition in the cavity 11. In addition, the shell body 1 is also provided with an inspection opening 15 in communication with the inside of the cavity 11. The inspection opening 15 is provided to facilitate the periodic inspection and maintenance of the inside of the device. In the long-term use process, the filter core may be blocked, the components may be worn or other faults may occur. By checking the components inside the cavity 11 through the inspection opening 15, it can be ensured that the device is always in good operating condition, thereby prolonging the service life of the device. The shell body 1 is also provided with a blowdown pipe 17 in communication with the bottom of the cavity 11. Through the blowdown pipe 17, the impurities, dirt or liquid accumulated at the bottom of the cavity 11 can be discharged. In the gas filtering process, the pollutant particles on the filter core body 5 and the impurities contained in the gas may deposit at the bottom of the cavity 11 under the action of gravity, or liquid may condense and accumulate at the bottom when processing gas containing moisture. By regularly discharging these impurities and liquid through the blowdown pipe 17, the inside of the cavity 11 can be kept clean, which prevents the accumulation of too much impurities from affecting the flow of gas and the filtering effect, and also facilitates the cleaning and maintenance of the device. The bottom of the cavity 11 is designed in a semicircular shape. The semicircular bottom structure is beneficial to the aggregation and discharge of impurities. Since the shape is relatively smooth, the impurities are more easily slid to the blowdown pipe 17 under the action of gravity, thereby facilitating the discharge of the impurities through the blowdown pipe 17. At the same time, the semicircular bottom also makes the gas flow in the cavity 11 more smooth, reduces the stagnation and vortex phenomenon of the gas at the bottom of the cavity 11, and improves the efficiency and uniformity of the gas filtering.

[0032] In the embodiment, the specific structure of the lifting assembly 8 includes a rotating frame 81 and a screw rod 82. The rotating frame 81 is connected to the housing body 1. Specifically, a support is fixedly connected to the outer wall of the housing body 1, and the rotating frame 81 is connected to the housing body 1 through the support and can be rotatably connected to the support. The rotating axis of the rotating frame 81 is parallel to the axis of the housing body 1. The screw rod 82 is threadedly connected to the rotating frame 81, and its axis is also parallel to the axis of the housing body 1. The bottom end of the screw rod 82 is connected to the central part of the sealing cover plate 7. Specifically, a lifting ring is fixedly connected to the central part of the sealing cover plate 7, and the bottom end of the screw rod 82 is fixedly connected to a U-shaped connecting piece. The opening of the U-shaped connecting piece faces downward and is provided with a bolt. The bolt penetrates the lifting ring. By rotating the screw rod 82, the sealing cover plate 7 can be lifted. Then, by rotating the rotating frame 81, the position of the sealing cover plate 7 can be moved, which is convenient for replacing the filter core body 5 or maintaining the inside of the device.

[0033] In the filter device, an installation seat is fixedly connected inside the cavity 11 for the installation and positioning of the filter core body 5. The filter core body 5 is fixedly installed on the installation seat to ensure its stable and reliable operation. The design of the installation seat ensures that the inside of the filter core body 5 is in precise communication with the gas outlet 13 of the housing body 1. At the same time, the filter core body 5 and the cavity 11 are located on the same axis to ensure smooth flow of gas during the filtration process and avoid problems such as reduced filtration efficiency or damage to the filter core body 5 due to irregular gas flow. When the natural gas to be treated enters the filter device, it first enters the cavity 11 through the gas inlet 12 and then flows through the filter core body 5 and the gas outlet 13 in sequence. In this process, the filter core body 5 can effectively filter out the pollutant particles in the natural gas to ensure that the filtered natural gas meets the required cleanliness standard. The filter core body 5 is made of advanced degradable materials, mainly composed of nanocellulose or polylactic acid (PLA) based composite materials. Nanocellulose is a natural material with good mechanical properties and biocompatibility, while polylactic acid (PLA) is a biodegradable polymer material widely used in the environmental protection field. The combination of the two materials not only makes the filter core body 5 have excellent filtration performance, but also enables it to be biodegraded after being discarded, avoiding environmental problems that may be caused by traditional filter materials and meeting the requirements of sustainable development. To further improve the filtration efficiency of the filter core body 5, a magnetic material is embedded inside it. The embedding of the magnetic material can enhance the particle coalescence efficiency. Through the magnetic force, the pollutant particles in the natural gas are more likely to gather together, thereby being more effectively intercepted and adsorbed by the filter core body 5.

[0034] In order to further improve the filtering effect of natural gas, the hollow interlayer 14 is arranged between the shell body 1 and the cavity 11, which is constructed according to the design standard of pressure vessel, and is designed according to the actual pressure in the cavity 11 to ensure its stability and safety during operation. The magnetic field generator 4 and the acoustic wave generator 3 are installed inside the hollow interlayer 14 and work cooperatively, so as to form a uniform acoustic field and a gradient magnetic field in the cavity 11. The special composite field environment can effectively promote the coalescence of pollutant particles in natural gas, thereby improving the filtering efficiency. The integrated control module 6 includes a control unit connected to the vibration generator 2, the acoustic wave generator 3 and the magnetic field generator 4 to realize dynamic parameter adjustment. The dynamic adjustment makes the device can flexibly adjust the working state of each component according to different filtering requirements and working conditions, thereby further improving the coalescence efficiency of pollutant particles, effectively avoiding the clogging of the filter core body 5, and ensuring the efficiency and stability of the filtering process. During filtering, the natural gas enters from the outside and exits from the inside through the filter core body 5. The acoustic-magnetic coupling synergistic effect makes the pollutant particles entrained in the natural gas deflect towards the particle agglomerates deposited on the surface of the filter core body 5, rather than towards the gap between the particles, effectively reducing the speed of the internal pore of the filter core body 5 being clogged. In addition, the vibration generator 2 is fixedly installed on the top end cover of the filter core body 5 to produce periodic pulse vibration, with a vibration frequency of 10-50 Hz, a vibration amplitude of 2-8 mm, a vibration period of 0.05 seconds and a horizontal pulse vibration direction. The vibration generator 2 is located at the top of the center link of the filter core body 5, and the coalesced pollutant particle groups on the filter core body 5 are stripped and fall off under vibration, realizing self-cleaning of the filter core body 5.

[0035] In this embodiment, the shell body 1 and the cavity 11 are both in cylindrical structure, and the hollow interlayer 14 is in circular ring structure, all of which are located on the same axis. This design not only ensures the stability of the overall structure, but also provides a basis for the uniform distribution of sound field and magnetic field. The inner wall of the side of the hollow interlayer 14 away from the cavity 11 is coated with a sound wave reflection coating, which can not only enhance the reflection of sound waves, reduce the dissipation of sound waves, and reduce the energy loss of sound waves, but also reduce environmental noise pollution. The sound wave reflection coating adopts a multi-layer phononic crystal metamaterial structure (such as a periodic phononic crystal) and a porous sound absorption layer composite structure, which realizes directional reflection and local resonance for sound waves of different frequencies, and the reflection efficiency is improved by more than 30%. It not only enhances the reflection of sound waves and effectively reduces the energy loss of sound waves, but also suppresses noise to below 80dB(A), ensuring the stability of the sound field inside the cavity 11. Specifically, the sound wave generator 3 includes a plurality of sound wave generating units 31, which are arranged around the side wall of the hollow interlayer 14 close to the cavity 11. The plurality of sound wave generating units 31 are arranged in an array along the axis direction of the shell body 1 inside the hollow interlayer 14, and the distance between adjacent two sound wave generating units 31 is 200mm-400mm. In this embodiment, the sound wave generating unit 31 cooperates with the sound wave reflection coating to form a low-frequency uniform standing wave sound field inside the cavity 11, with a sound field frequency of 50Hz-100Hz and a sound field intensity of 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 mode and number of the sound wave generating units 31, a composite sound wave is formed inside the cavity 11, for example, a combination of low-frequency 50Hz and high-frequency 10kHz. The low-frequency sound field guides large particle coalescence, 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), especially suitable for PM2.5 ultrafine particle filtration scenes.

[0036] Further, the magnetic field generator 4 in this embodiment includes an electromagnetic coil 41 arranged around the side wall of the hollow interlayer 14 near the cavity 11 for forming a gradient magnetic field. The array of electromagnetic coils 41 is non-uniformly distributed along the airflow direction (i.e., the axial direction of the cavity 11). This non-uniform distribution design causes the magnetic field strength to vary gradiently at different positions, with a specific range of 0.1T to 1T. Through this gradient magnetic field strength design, the separation effect of different particle sizes of pollutant particles can be effectively enhanced. The gradient magnetic field generated by the electromagnetic coil 41 forms an environment with gradually changing magnetic field strength inside the cavity 11. 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 core body 5 when passing through the filter core body 5. At the same time, the magnetic field generator 4 works cooperatively with the acoustic wave generator 3 to form a sound-magnetic coupling effect. The sound field promotes particle coalescence through acoustic wave action, while the gradient magnetic field guides the migration path of charged particles through the Lorentz force. By dynamically adjusting the magnetic field strength gradient, the migration rate of charged particles can be changed, further promoting the accelerated coalescence and directional adsorption of pollutant particles. This cooperative mechanism not only improves the filtration efficiency, but also significantly reduces the clogging rate of the filter core body 5.

[0037] Further, the integrated control module 6 also includes a pressure difference sensor for monitoring the pressure difference upstream and downstream of the filter core body 5. The pressure difference is an important indicator of the clogging degree of the filter core body 5. By monitoring the pressure difference in real time, it can be determined whether the filter core body 5 needs to be cleaned or replaced in a timely manner. A vibration accelerometer is used to detect the vibration acceleration of the vibration generator 2. By monitoring the vibration acceleration, the normal operation of the vibration generator 2 can be ensured, and the self-cleaning effect of the filter core body 5 can be optimized by adjusting the vibration frequency and intensity. A particle concentration monitor is used to detect the concentration of pollutant particles. By monitoring the particle concentration in real time, the filtration effect can be evaluated, and the sound field and magnetic field parameters can be adjusted as needed to improve the filtration efficiency. A magnetic field strength gradient monitor is used to detect the magnetic field strength inside the cavity 11. By monitoring the magnetic field strength gradient, the normal operation of the magnetic field generator 4 can be ensured, and the magnetic field parameters can be adjusted as needed to optimize the filtration effect. These monitoring data are transmitted to the integrated control module 6 in real time, providing a basis for dynamic regulation and control.

[0038] The input parameters of the integrated control module 6 include pressure difference gradient, magnetic field intensity gradient, vibration frequency spectrum, and sound field frequency and intensity deviation, and the output sound wave frequency adjustment amount (±10 Hz), intensity adjustment amount (±5 dB); the integrated control module 6 realizes dynamic adjustment of the sound field and the magnetic field parameters through intelligent dynamic control, responds to the pressure difference change rate, and optimizes the energy consumption and filtration efficiency. The integrated control module 6 can adjust the parameters of the sound field and the magnetic field in real time through intelligent dynamic control according to the monitoring data. When the pressure difference sensor detects that the upstream and downstream pressure differences of the filter element body 5 suddenly increase, the integrated control module 6 will judge that the filter element body 5 has been blocked. At this time, the integrated control module 6 dynamically adjusts the sound wave frequency and intensity, as well as the magnetic field intensity gradient, to enhance the coalescence ability of the pollutant particles, thereby reducing the pressure difference and improving the filtration efficiency. The integrated control module 6 can also dynamically adjust the vibration frequency and intensity of the vibration generator 2 according to the data of the vibration accelerometer, so that the pollutant particle clusters on the surface of the filter element body 5 are stripped and fall off, thereby optimizing the self-cleaning effect of the filter element body 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 different particle size pollutant particles. 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 coalescence ability of the particles.

[0039] The natural gas coalescence separation filter device of the present application can improve the coalescence efficiency of pollutant particles in natural gas by applying a sound field and a magnetic field inside the cavity 11 of the shell body 1, and the sound field and the magnetic field can cooperatively induce secondary flow on the surface of the filter element body 5, deflecting the pollutant particles near the filter element body 5 towards the particle groups already deposited on the surface of the filter element body 5, rather than towards the gaps between the particles, effectively reducing the speed of plugging the pores of the filter element body 5. The vibration generator 2 generates pulse vibration acting on the filter element body 5 to produce micro-vibration, which in turn causes the pollutant particle clusters on the surface of the filter element body 5 to strip and fall off, achieving self-cleaning of the filter element body 5. Under the condition of ensuring high filtration efficiency and low pressure loss, the service life of the filter element body 5 is greatly increased.

[0040] It is to be understood that the expressions such as "include" and "may include" used in the present application mean the existence of the disclosed functions, operations or constituent elements, and do not limit one or more additional functions, operations and constituent elements. In the present application, terms such as "include" and / or "have" can be interpreted to mean that a specific feature, number, operation, constituent element, component or combination thereof is present, but cannot be interpreted to exclude the possibility of existence or addition of one or more other features, numbers, operations, constituent elements, components or combinations thereof.

[0041] It should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] Those skilled in the art can understand that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-field coupling synergistic natural gas coalescing separation filtration device, characterized in that, The shell body (1), the vibration generator (2), the sound wave generator (3), the magnetic field generator (4), the filter core body (5) and the integrated control module (6) are included. The cavity (11) is arranged in the shell body (1), the air inlet (12) and the air outlet (13) are arranged on the shell body (1) and communicated with the cavity (11), the filter core body (5) is arranged in the cavity (11) and the inside of the filter core body (5) is communicated with the air outlet (13), the natural gas to be treated passes through the air inlet (12), the filter core body (5) and the air outlet (13) in sequence to realize the filtration. The hollow interlayer (14) is arranged between the shell body (1) and the cavity (11), the magnetic field generator (4) and the sound wave generator (3) are arranged in the hollow interlayer (14) to form the sound field and the magnetic field in the cavity (11) for the coalescence of the pollutant particles. The vibration generator (2) is arranged on the filter core body (5) to generate the periodic pulse vibration. The integrated control module (6) includes the control unit, the control unit is connected with the vibration generator (2), the sound wave generator (3) and the magnetic field generator (4) to realize the dynamic adjustment of the parameters.

2. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 1, wherein, The shell body (1) and the cavity (11) are cylindrical structures, the hollow interlayer (14) is a circular ring structure, the shell body (1), the cavity (11) and the hollow interlayer (14) are located on the same axis.

3. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 2, wherein, The inside wall of the hollow interlayer (14) away from the cavity (11) is coated with a sound wave reflection coating.

4. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 1, wherein, The sound wave generator (3) includes a plurality of sound wave generating units (31), the sound wave generating units (31) are arranged in an array in the hollow interlayer (14) along the axis direction of the shell body (1), the sound wave generating units (31) are arranged on the side wall of the hollow interlayer (14) close to the cavity (11), and the distance between two adjacent sound wave generating units (31) is 200mm-400mm.

5. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 1, wherein, 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. A multi-field coupled synergistic natural gas coalescing separation filter device as described in claim 1, wherein, The sound field is composed of a low-frequency sound field and a high-frequency sound field.

7. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 1, wherein, The magnetic field generator (4) includes an electromagnetic coil (41), the electromagnetic coil (41) is arranged on the side wall of the hollow interlayer (14) close to the cavity (11) to form a gradient magnetic field.

8. A multi-field coupled synergistic natural gas coalescing separation filter device as described in claim 1, wherein, The integrated control module (6) further includes a pressure difference sensor for monitoring the pressure difference change between the upstream and downstream of the filter core 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 in the cavity (11).

9. A multi-field coupled synergistic natural gas coalescing separation filter device as described in claim 1, wherein, The cavity (11) extends to one end of the shell body (1) to form an opening, a sealing cover plate (7) is arranged at the opening, and the shell body (1) is further provided with a lifting assembly (8) for connecting the sealing cover plate (7).

10. A multi-field coupled synergistic natural gas coalescing separation filter device as claimed in claim 9, wherein, The lifting assembly (8) comprises a rotating frame (81) and a screw rod (82), the rotating frame (81) is rotationally connected to the shell body (1) and the rotating axis is parallel to the axis of the shell body (1), the screw rod (82) is threadedly connected to the rotating frame (81) and the screw rod (82) is parallel to the axis of the shell body (1), and the bottom end of the screw rod (82) is connected to the center part of the sealing cover plate (7).

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