A manifold with self-cleaning function

Abstract

The present invention relates to a collecting pipe with a self-cleaning function, which comprises a first loop pipe, a second loop pipe, an inlet pipe, a first outlet pipe, a second outlet pipe, a cleaning component, and a driving component; the first loop pipe and the second loop pipe are semi-circular pipes, the pipe orifice cross-section of the first loop pipe is circular, the pipe orifice cross-section of the second loop pipe is arched, sealing plates are arranged at the pipe orifices at both ends of the first loop pipe, notches are arranged on the sealing plates, and the second loop pipe is communicated with the notches on the sealing plates, so that a circular fluid channel is formed between the first loop pipe and the second loop pipe, and the fluid channel surrounds the outer wall of the scrubbing tower; two groups of cleaning components are arranged and are arranged inside the first loop pipe, and the two groups of cleaning components and the inlet pipe are symmetrically arranged; the driving component passes through the sealing plate and is connected to the cleaning component for driving the cleaning component to move along the inner wall of the first loop pipe. The present invention greatly reduces the internal volume of the collecting pipe, shortens the initial reaction time for the collecting pipe to distribute fluid, and improves the response speed.

Description

Technical Field

[0001] The present invention relates to the technical field of petrochemical pipelines, and particularly to a manifold with self-cleaning function and a cleaning method. Background Art

[0002] Catalytic cracking units have always accounted for a very large proportion in the field of crude oil processing. Almost every refinery, in the initial stage of construction, in order to process the residual residue of the atmospheric and vacuum distillation units, will build one or several catalytic cracking units, and these units have created very considerable economic benefits for each refinery. With the increasing emphasis on environmental protection, the pollution problem of catalytic flue gas has gradually attracted people's attention, and catalytic flue gas desulfurization has become an essential unit that must be considered for addition to catalytic units. Among them, wet flue gas desulfurization is a commonly used method for catalytic flue gas desulfurization. Its main principle is to introduce the flue gas into a scrubbing tower, and fully react with the bottom fluid of the tower in a mixer before entering the tower. The reacted mixed liquid then enters the scrubbing tower for gas-liquid separation. The purified flue gas is discharged into the atmosphere, and the bottom fluid can be pumped back to the mixer for recycling. In order to make the reaction more sufficient and the layout more reasonable, the catalytic flue gas generally enters the scrubbing tower in two symmetrically divided feeds. Therefore, it is required that the bottom fluid of the tower must also enter the mixer in two paths. Under normal operating conditions, only one bottom pump is working. Therefore, the process requires special treatment of the fluid before it enters the mixer to make the liquid flow rate into the two mixers roughly equal and the distribution more uniform, avoiding uneven flow and making the equipment operate more stably.

[0003] The patent with the publication number CN217784533U discloses a liquid pipeline distribution manifold, including a loop pipe arranged around the scrubbing tower. The loop pipe is fixedly connected by a first loop pipe and a second loop pipe; an inlet stub is arranged at the bottom of the loop pipe, and two outlet stubs are arranged at the top. The caliber size of the inlet stub is equal to the caliber size of the loop pipe, and the caliber size of the outlet stub is smaller than the caliber size of the loop pipe. One of the outlet stubs is located on the first loop pipe, and the other outlet stub is located on the second loop pipe and the two outlet stubs are symmetrically arranged with respect to the inlet stub; a plurality of brackets are arranged circumferentially at the bottom of the loop pipe. However, the following problems still exist in this solution: The manifold is of a ring structure with a relatively large internal volume. The circulating liquid needs to first fill the manifold before it can flow out, resulting in a slow initial response. At the same time, scale is likely to appear inside the ring-shaped manifold after long-term use, and it is inconvenient to clean.

[0004] Therefore, it is urgent to design a new manifold and control method to solve the problems in the prior art, such as a relatively large internal volume, a slow initial response, and the scale that is likely to appear inside the ring-shaped manifold after long-term use and is inconvenient to clean. Summary of the Invention

[0005] To solve the problems of the existing technology, the present invention proposes a collecting pipe with a self-cleaning function and a cleaning method, which solves the problems of large internal volume, slow initial response, easy formation of water scale inside the annular collecting pipe after long-term use, and inconvenient cleaning in the existing technology.

[0006] The object of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. A collecting pipe with a self-cleaning function proposed according to the present invention includes a first ring pipe, a second ring pipe, an inlet pipe, a first outlet pipe, a second outlet pipe, a cleaning component, and a driving component;

[0007] The first ring pipe and the second ring pipe are semi-circular pipes. The cross-section of the pipe orifice of the first ring pipe is circular, and the cross-section of the pipe orifice of the second ring pipe is bow-shaped. Sealing plates are provided at both ends of the first ring pipe, and notches are provided on the sealing plates. The second ring pipe is communicated with the notches on the sealing plates, so that the first ring pipe and the second ring pipe form an annular fluid channel, and the fluid channel surrounds the outer wall of the scrubbing tower;

[0008] The inlet pipe is communicated with the side of the first ring pipe, the first outlet pipe and the second outlet pipe are communicated with the top of the first ring pipe, and the first outlet pipe and the second outlet pipe are symmetrically arranged with respect to the inlet pipe;

[0009] Two groups of cleaning components are provided and are arranged inside the first ring pipe, and the two groups of cleaning components are symmetrically arranged with respect to the inlet pipe;

[0010] The driving component passes through the sealing plate and is connected to the cleaning component for driving the cleaning component to move along the inner wall of the first ring pipe.

[0011] Further, the cleaning component includes a scraping blade, a support rod, and a central rod. The scraping blade is a ring structure, and one end is in contact with the inner wall of the first ring pipe. The central rod is arranged at the center position of the scraping blade and is connected to the inner side of the scraping blade through a plurality of support rods.

[0012] Further, an arc-shaped vertical plate is provided on the inner side of the scraping blade, and one end of the scraping blade away from the inner wall of the first ring pipe is connected to the vertical plate to form a ring-shaped storage bin.

[0013] Further, an elastic sealing portion is provided at one end of the vertical plate away from the connection end with the scraping blade. The length of the vertical plate is greater than the length of the scraping blade, and a closed space can be formed by the scraping blade, the vertical plate, the inner wall of the first ring pipe, and the sealing plate.

[0014] Further, the cross-section of the plurality of support rods distributed radially along the central rod is streamlined. The included angle between the support rod and the central rod is an acute angle, and the size of the included angle is 80°-90°.

[0015] Further, the driving assembly includes two motion units symmetrically arranged with respect to the inlet pipe, two crankshafts and a track. The track is a semi-circular structure. The motion units are arranged corresponding to the crankshafts. The motion units are arranged on the track and can move along the track. One end of one crankshaft is connected to its corresponding motion unit, and the other end passes through the sealing plate and is connected to the cleaning assembly.

[0016] Further, the curvature radii of the crankshaft and the track are both equal to the curvature radius of the first loop pipe.

[0017] Further, the sealing plate includes a sealing block, a sewage outlet and a partition plate. The sealing block is arranged inside the first loop pipe, and the sewage outlet is arranged at the bottom of the partition plate.

[0018] Further, a control system is also included, and the control system is used to control the movement of the driving assembly.

[0019] A method for using a manifold with self-cleaning function includes the following specific steps:

[0020] S1. After the manifold runs continuously for a time T, the control system drives the two motion units to move towards each other along the track, and the motion units push the cleaning assembly to move inside the first loop pipe through the crankshafts;

[0021] S2. When the cleaning assembly moves to the set position, the two cleaning assemblies stop moving, and the control system drives the two motion units to move in the reverse direction, and the cleaning assembly starts to work;

[0022] S3. During the cleaning process, the scraping blades closely adhere to the inner wall of the first loop pipe to remove scale, and the lumpy scale enters the storage bin;

[0023] S4. When the cleaning assembly moves to the stop area, the storage bin abuts against the sealing plate;

[0024] S5. Open the sewage outlet from the outside of the sealing plate, clean the scale inside the storage bin, and then close the sewage outlet, and the cleaning work ends.

[0025] In summary, the present invention has the following advantages:

[0026] 1. By arranging the semi-circular or arcuate second loop pipe, the volume inside the manifold is greatly reduced, the initial reaction time for the manifold to distribute fluid is shortened, and the response speed is improved;

[0027] 2. By symmetrically arranging two groups of cleaning assemblies for cleaning the scale on the inner wall of the manifold, the cleaning process can be carried out without interrupting the fluid flow, improving the reliability and efficiency of the system.

[0028] 3. By using the crankshaft to clean the scale on the inner wall of the annular first loop pipe, the need for manual maintenance is reduced, ensuring the thoroughness and consistency of cleaning.

[0029] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically given and described in detail in conjunction with the accompanying drawings. Brief Description of the Drawings

[0030] Figure 1 It is a schematic diagram of a manifold with a self-cleaning function according to the present invention;

[0031] Figure 2 It is a top view of the manifold in the present invention;

[0032] Figure 3 It is a front view of the manifold in the present invention;

[0033] Figure 4 It is Figure 3 a cross-sectional view taken along A-A in

[0034] Figure 5 It is a schematic diagram of the structure of the first loop of pipes in the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the second loop of pipes in the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the scraping blade in the present invention;

[0037] Figure 8 It is a cross-sectional view of the scraping blade in the present invention;

[0038] Figure 9 It is a schematic diagram of the sliding structure between the support rod and the scraping blade in the present invention.

[0039] Reference Numerals: 1, the first loop of pipes; 2, the second loop of pipes; 3, the inlet pipe; 4, the first outlet pipe; 5, the second outlet pipe; 6, the cleaning assembly; 601, the scraping blade; 602, the support rod; 603, the central rod; 604, the vertical plate; 605, the storage bin; 606, the first stop plate; 607, the second stop plate; 608, the first elastic element; 609, the second elastic element; 7, the driving assembly; 701, the motion unit; 702, the crankshaft; 703, the track; 8, the bracket; 9, the scrubbing tower; 10, the sealing plate; 1001, the sealing block; 1002, the sewage outlet; 1003, the partition plate; 11, the notch; 12, the water distribution member; 13, the valve; 1301, the first valve; 1302, the second valve. Detailed Description of the Embodiments

[0040] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention will be described in detail below with reference to specific drawings.

[0041] It should be noted that all the terms indicating direction and position in the present invention, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "bottom", "lateral", "longitudinal", "center", etc., are only used to explain the relative position relationship and connection situation between components under a certain specific state, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0044] As Figure 1 、 Figure 2 、 Figure 3 shown, the present invention discloses a header pipe with a self-cleaning function, including a first ring pipe 1, a second ring pipe 2, an inlet pipe 3, a first outlet pipe 4, a second outlet pipe 5, a cleaning assembly 6, a driving assembly 7, and a bracket 8;

[0045] Both the first ring pipe 1 and the second ring pipe 2 are semi-circular pipes. The cross-section of the pipe orifice of the first ring pipe 1 is circular, and the cross-section of the pipe orifice of the second ring pipe 2 is bow-shaped. Sealing plates 10 are provided at both ends of the pipe orifice of the first ring pipe 1, and notches 11 are provided on the sealing plates 10. The second ring pipe 2 is connected to the notch 11 of the first ring pipe 1, and after the two are connected, they can be butted into a circular and continuous fluid passage in the same plane. By connecting the second ring pipe 2 to the notch 11 of the first ring pipe 1, the fluid can enter the second ring pipe 2 from the inside of the first ring pipe 1 through the notch 11, ensuring the circulation of the fluid in the entire system, being able to fully exert the equalizing effect of the communicating vessel, while greatly reducing the internal volume of the header pipe, shortening the initial reaction time for the header pipe to distribute the fluid, and improving the response speed. The formed fluid passage surrounds the outer wall of the scrubbing tower 9. The nominal diameter of the scrubbing tower 9 is DN3000, and the nominal diameters of the first ring pipe 1 and the second ring pipe 2 are DN600;

[0046] The nominal diameter of the inlet pipe 3 is DN600. The inlet pipe 3 is connected to the side of the first loop pipe 1 and is used for the fluid to flow into the header pipe. The inlet pipe 3 is arranged radially along the first loop pipe 1. The inlet pipe 3 is a bent pipe. The impact force of the fluid on the first loop pipe 1 decreases radially, reducing the turbulence effect generated when the fluid enters, reducing the energy loss, and improving the stability of the fluid flow. At the same time, the header pipe transfers the force to the scrubbing tower 9 or disperses it evenly, avoiding the problems that the first loop pipe 1 in the existing connection structure bears a unilateral axial force and deforms, and the bracket 8 is prone to looseness, which helps to reduce the energy loss and improve the stability and reliability of the structure;

[0047] The nominal diameters of the first outlet pipe 4 and the second outlet pipe 5 are DN450. The first outlet pipe 4 and the second outlet pipe 5 are arranged axially at the top of the first loop pipe 1. The first outlet pipe 4 and the second outlet pipe 5 are symmetrically arranged with respect to the inlet pipe 3, and the first outlet pipe 4 and the second outlet pipe 5 are arranged adjacent to the second loop pipe 2, which can better play the role of a communicating vessel, ensure that the flow rates of the fluid flowing out from the two outlet pipes are more uniform, reduce the problem of uneven flow rates caused by position differences, improve the stability and efficiency of the system. At the same time, the transition between the first outlet pipe 4 and the first loop pipe 1 and between the second outlet pipe 5 and the first loop pipe 1 is smooth. Denote the inner wall arc of the transition section as R 内 , and the outer wall arc of the transition section as R 外 , then R 内 < R 外 , so that when the fluid enters the first outlet pipe 4 or the second outlet pipe 5 from the first loop pipe 1, it can flow along a smoother path, reducing the turbulence caused by suddenly changing the direction or speed. This can not only reduce the energy loss, but also improve the overall efficiency of the system. And the inner and outer wall arcs R of the transition section 内 < R 外 , making the transition section form a structure with a thick middle and thin sides, enabling the transition section to better withstand fluid impact and wear and extend the service life.

[0048] Such as Figure 3 , Figure 7 , Figure 8As shown, the cleaning assembly 6 is arranged inside the first loop pipe 1. The two sets of cleaning assemblies 6 are symmetrically arranged with respect to the inlet pipe 3. The cleaning assembly 6 is used to clean the scale on the inner wall of the manifold, enabling the cleaning process to be carried out without interrupting the fluid flow, improving the reliability and efficiency of the system. At the same time, the driving assembly 7 can be used to clean the scale on the inner wall of the annular first loop pipe 1, reducing the need for manual maintenance, ensuring thorough and consistent cleaning. By means of the built-in cleaning assembly 6 and the drive system, the problem that the annular manifold system is prone to performance degradation and increased maintenance costs due to the accumulation of scale and other deposits is effectively solved, realizing an automated cleaning process, reducing manual intervention, improving the operating efficiency and reliability of the system, and making the overall system layout more compact, saving installation space and facilitating integration into the existing scrubber system;

[0049] The cleaning assembly 6 includes a scraping blade 601, a support rod 602 and a central rod 603. The scraping blade 601 is of an annular structure and is used to directly contact the inner wall of the first loop pipe 1 to remove scale and other deposits. The central rod 603 is arranged at the center of the scraping blade 601 and is connected to the scraping blade 601 through the support rod 602. At least two support rods 602 are evenly distributed along the circumference of the central rod 603;

[0050] The annular scraping blade 601 can completely cover the inner wall of the first loop pipe 1 to ensure no dead corners in cleaning. The circumferential even distribution design of the support rod 602 enables the scraping blade 601 to be evenly stressed, avoiding wear or damage caused by uneven local stress. In the present invention, the central rod 603 can be arc-shaped and can match the circular cross-section of the first loop pipe 1 to ensure that the cleaning assembly 6 can maintain the correct posture at different positions, enhancing the adaptability of the system. This setting improves the cleaning efficiency, ensures that the cleaning assembly 6 always stably adheres to the inner wall during movement, reduces jitter and deviation during the cleaning process, and has good reliability and stability;

[0051] The scraping blade 601 forms an acute angle with the inner wall of the first loop pipe 1. The acute angle design enables the scraping blade 601 to form a larger effective contact area when contacting the inner wall of the first loop pipe 1, increasing the cleaning effect on scale and other deposits, making it easier to remove hard deposits, improving the cleaning efficiency. The acute angle design can reduce the turbulence and eddy currents between the scraping blade 601 and the pipe wall, optimize the fluid flow path, and reduce the resistance within the system.

[0052] As Figure 7 、 Figure 8As shown, an arc-shaped vertical plate 604 is provided on the inner side of the scraping blade 601. One end of the scraping blade 601 far from the inner wall of the first loop pipe 1 is connected to the vertical plate 604 to form a storage bin 605 with an annular structure. The storage bin 605 can effectively collect scale or other foreign matters scraped off by the scraping blade 601, prevent these substances from adhering to the inner wall of the first loop pipe 1 again, avoid secondary pollution. By centrally storing the scale or foreign matters in the storage bin 605, it is convenient for subsequent cleaning and treatment, improving the cleaning efficiency.

[0053] At the same time, an elastic sealing part can be provided at the end of the vertical plate 604, and the height of the vertical plate 604 is greater than the length of the scraping blade 601 extending along the axial direction, so that a closed space is formed among the scraping blade 601, the vertical plate 604, the inner wall of the first loop pipe 1, and the sealing plate 10, which is more convenient for cleaning scale or sundries. The elastic sealing part is made of flexible materials such as rubber and silica gel. When the cleaning assembly 6 stops working, the elastic sealing part can closely fit the inner wall of the sealing plate 10 to ensure the sealing effect. The closed space ensures the tightness during the cleaning process, prevents the leakage of scale or foreign matters, centrally processes the scraped scale or foreign matters, reduces secondary pollution and residues, protects the system components, improves the cleaning efficiency and quality, and ensures the long-term stable operation of the system.

[0054] As Figure 7 shown, the cross-section of the support rod 602 is streamlined. The streamlined cross-section helps to reduce the resistance generated when fluids such as air or water flow, enabling the fluid to flow around the support rod 602 more smoothly, reducing the formation of turbulence and eddies. The streamlined cross-section can significantly improve the overall efficiency of the system, reduce energy loss, reduce local stress concentration, and enhance the stability and reliability of the structure.

[0055] The angle between the support rod 602 and the central rod 603 is an acute angle, and the angle range is 80 - 90°. This enables the frictional force received by the scraping blade 601 during operation to be decomposed. The frictional force F received by the scraping blade 601 during operation can be decomposed into two components: the component force F1 along the direction of the support rod 602 and the component force F2 perpendicular to the direction of the support rod 602. Since the angle is an acute angle, the perpendicular component force F2 of the frictional force is relatively small, which means that the perpendicular pressure applied to the support rod 602 is reduced, thereby reducing the torque that the support rod 602 needs to bear. The torque τ can be calculated by the formula, where r is the length of the force arm, F is the acting force, and θ is the angle between the force and the force arm, improving the stability and reliability of the system, and also optimizing the force transmission path to ensure the efficient operation of the entire system.

[0056] As Figure 9As shown in the figure, an inclined block sliding structure is provided between the support rod 602 and the scraping blade 601. The top of the support rod 602 is an inclined surface, and a first stop plate 606 and a second stop plate 607 are respectively provided at both ends of the inclined surface. A first elastic element 608 is provided between the scraping blade 601 and the first stop plate 606, and a second elastic element 609 is provided between the scraping blade 601 and the second stop plate 607. The elastic modulus of the first elastic element 608 is greater than that of the second elastic element 609. When the cleaning assembly 6 starts to move and the scraping blade 601 encounters resistance, the scraping blade 601 moves downward, pushing the second elastic element 609 to deform, so as to prevent the scraping blade 601 from scratching the first coil pipe 1; when the cleaning assembly 6 is working, the scraping blade 601 moves to the upper part of the sliding structure, and the first stop plate 606 and the first elastic element 608 limit the movement of the scraping blade 601, restricting the acting force between the scraping blade 601 and the first coil pipe 1 within a suitable range, which can not only meet the requirement of removing scale, but also avoid scratching the first coil pipe 1. At the same time, a limiting device is provided outside the first elastic element 608 and the second elastic element 609 to prevent the first elastic element 608 and the second elastic element 609 from detaching from the top of the support rod 602.

[0057] Preferably, a positioning groove is further provided on the central rod 603. The opening direction of the positioning groove faces the sealing plate 10. When the cleaning assembly 6 stops working, the top surface of the positioning groove abuts against the sealing plate 10 to enhance the sealing effect. The top surface of the positioning groove abuts against the sealing plate 10 to form a physical barrier to prevent fluid from leaking from the gap between the crankshaft 702 and the sealing plate 10. Combined with other sealing devices such as O-rings or mechanical seals, the overall sealing effect is further enhanced to ensure no leakage in the static state.

[0058] As Figure 1 、 Figure 4 As shown in the figure, the driving assembly 7 includes two motion units 701, two crankshafts 702 and a track 703. The track 703 is a semi-circular structure. The motion unit 701 is arranged on the track 703, and the motion unit 701 can move along the track 703. One end of the crankshaft 702 is connected to the motion unit 701, and the end of the crankshaft 702 far from the motion unit 701 passes through the sealing plate 10 and is connected to the arc end of the central rod 603 to drive the cleaning assembly 6 to move in the first coil pipe 1. The two motion units 701 are symmetrically arranged with respect to the inlet pipe 3;

[0059] The track 703 has a semi-circular structure and is fixed to the outside of the first loop pipe 1, providing a movement path for the movement unit 701. The movement unit 701 is arranged on the track 703 and can move along the track 703, enabling the cleaning assembly 6 to perform precise movement along a predetermined path, avoiding deviation or jitter, ensuring the precise movement of the cleaning assembly 6. One end of the crankshaft 702 is connected to the movement unit 701, and the other end passes through the sealing plate 10 and is connected to the central rod 603 for transmitting power to drive the movement of the cleaning assembly 6. The two movement units 701 are symmetrically arranged with respect to the inlet pipe 3, ensuring that both ends of the cleaning assembly 6 can move synchronously, improving the uniformity and efficiency of the cleaning process, ensuring that the movement trajectory of the movement unit 701 is fixed, enhancing the stability of the system, ensuring the balance of the system, and reducing problems caused by uneven force on one side.

[0060] Preferably, a sealing structure is provided between the crankshaft 702 and the sealing plate 10. The sealing structure can be an O-ring, flexible packing, or other mechanical sealing structures. A dynamic O-ring is installed between the crankshaft 702 and the inner ring of the bearing, which is suitable for sealing rotating or reciprocating moving parts. Materials with high wear resistance and chemical resistance, such as polytetrafluoroethylene PTFE or fluororubber FKM, are usually selected. The O-ring sealing structure is simple, easy to install, and has good sealing effect. The dynamic O-ring design reduces friction and improves the efficiency of the system.

[0061] Preferably, a stuffing box can be installed on the sealing plate 10, filled with flexible materials such as graphite or polytetrafluoroethylene, and the packing is compressed by a gland to form a sealing effect. The stuffing seal has a lower cost and is suitable for general working conditions. At the same time, the reciprocating mechanical sealing structure consists of a stationary ring, a rotating ring, a spring, and an auxiliary sealing ring. The rotating ring reciprocates with the crankshaft 702, and the stationary ring is fixed on the sealing plate 10. The common materials for the rotating and stationary rings include silicon carbide, alumina ceramics, stainless steel, etc. The spring and auxiliary sealing ring are selected from corrosion-resistant and wear-resistant materials. The mechanical seal can provide a reliable sealing effect in high-pressure and corrosive environments. The close fit of the rotating and stationary rings ensures a very low leakage rate, improving the safety and reliability of the system.

[0062] Preferably, the radius of curvature of the crankshaft 702, the track 703, and the central rod 603 are equal, all equal to the annular radius of curvature of the first loop pipe 1, ensuring that the cleaning assembly 6 can maintain a consistent change in curvature during movement, achieving synchronous movement. The consistent radius of curvature keeps the relative positions of the various components fixed, reducing local stress concentration, and ensuring the stability and reliability of the system.

[0063] Preferably, the two ends of the track 703 can be fixed to the two sealing plates 10 respectively, or fixed to the scrubbing tower 9, or fixed to the bottom of the second loop pipe 2;

[0064] When both ends of the track 703 are fixed to the sealing plate 10, the sealing plate 10 can be directly used as a support point to ensure the stability of the track 703. No additional support structure is required, simplifying the system design, reducing the installation complexity, making the entire system more compact, facilitating installation and maintenance. At the same time, the track 703 can connect the two sealing plates 10 of the first loop of pipes 1, helping to improve the overall structural stiffness of the structure;

[0065] When the track 703 is fixed to the scrubbing tower 9, the strong structure of the scrubbing tower 9 can be used to provide stable support to ensure that the track 703 will not deform or shift due to external forces. By fixing the track 703 to the scrubbing tower 9, the forces generated by the moving unit 701 and the crankshaft 702 can be evenly distributed to the scrubbing tower 9, reducing local stress concentration. Since the scrubbing tower 9 usually has high rigidity and stability, the track 703 fixed thereto can withstand greater external loads, enhancing the overall stability of the system, reducing vibration transmission, and improving the running smoothness of the system;

[0066] When the track 703 is fixed to the bottom of the second loop of pipes 2, the existing pipeline structure can be fully utilized for multiple fixings along the track 703, improving the structural stiffness of the track 703, reducing the vibration brought by the moving unit 701, and improving the running smoothness of the system.

[0067] A plurality of brackets 8 can be circumferentially arranged along the scrubbing tower 9. In the present invention, the brackets 8 are arranged below the inlet pipe 3, the first outlet pipe 4, the second outlet pipe 5, and the second loop of pipes 2. The brackets 8 can further reduce the vibration generated by the movement of the fluid in the inlet pipe 3, the first outlet pipe 4, and the second outlet pipe 5, avoiding affecting the fluid distribution. The brackets 8 can be one of a spring vibration damping bracket, a rigid bracket, or a flexible bracket;

[0068] The spring vibration damping bracket includes elastic elements such as springs or rubbers and a fixed base, which can effectively absorb the vibration from the pipeline system, reduce the impact on the surrounding structure, extend the equipment life, reduce the wear and fatigue damage caused by vibration, and improve the reliability and safety of the system;

[0069] The rigid bracket is made of metal or other high-strength materials and is firmly installed on the support structure by welding, bolts, etc., providing strong support force and having extremely high stability to ensure that the pipeline system can maintain the correct posture under any circumstances;

[0070] The flexible bracket is made of flexible materials such as rubber or polyurethane and a fixed base, allowing the pipeline to bend and deform within a certain range, effectively absorbing vibration and impact, and reducing the damage to the pipeline system.

[0071] Such as Figure 6As shown in the figure, the sealing plate 10 includes a sealing block 1001, a sewage outlet 1002, and a partition plate 1003. The sealing block 1001 is arranged on the side where the partition plate 1003 is connected to the first loop pipe 1 (i.e., inside the first loop pipe 1). The sewage outlet 1002 is arranged at the bottom of the partition plate 1003 and is used to discharge scale or foreign matters.

[0072] The sealing block 1001 can closely fit with the storage bin 605 to form a sealed space, preventing the fluid in the first loop pipe 1 from leaking out through the gaps and ensuring the sealing performance.

[0073] The sewage outlet 1002 is arranged at the bottom of the partition plate 1003, which facilitates the direct discharge of scale or foreign matters, simplifies the cleaning process. By reasonably designing the position and size of the sewage outlet 1002, blockage can be effectively prevented, ensuring the long-term stable operation of the system.

[0074] As Figure 4 shown in the figure, a water distribution member 12 is also arranged at the position where the inner wall of the first loop pipe 1 is directly opposite to the interface of the inlet pipe 3. The water distribution member 12 is used to evenly distribute the fluid of the inlet pipe 3. Through the guidance of the water distribution member 12, the fluid can enter the first loop pipe 1 more smoothly, reducing the turbulence effect. It can also effectively distribute the incoming fluid evenly throughout the pipeline system, avoiding local overload or unevenness, thereby improving the stability and efficiency of the system.

[0075] The water distribution member 12 can be integrally welded with the first loop pipe 1 or detachably connected to the first loop pipe 1.

[0076] When the water distribution member 12 is directly welded to the inner wall of the first loop pipe 1, the integrity and rigidity of the structure are enhanced, reducing the risk of loosening caused by mechanical vibration. When the water distribution member 12 is connected to the first loop pipe 1 through bolts or screws, the water distribution member 12 can be conveniently installed and disassembled, facilitating daily maintenance, cleaning, and component replacement, and improving the operation flexibility.

[0077] As Figure 2 shown in the figure, valves 13 are provided on both the first outlet pipe 4 and the second outlet pipe 5. The valves 13 are proportional valves. The valve 13 includes a first valve 1301 and a second valve 1302. The first valve 1301 is arranged on the first outlet pipe 4, and the second valve 1302 is arranged on the second outlet pipe 5.

[0078] The proportional valve can linearly adjust the opening degree according to input signals such as current or voltage, thereby achieving precise control of the fluid flow rate, improving the flexibility and response speed of the system. By integrating with control systems such as PLC or DCS, the proportional valve can monitor and adjust the flow rate in real time to ensure that the system is always in the best operating state. This enables the first valve 1301 and the second valve 1302 to independently control the flow rates of the first outlet pipe 4 and the second outlet pipe 5 respectively, achieving dynamic balance of the load and avoiding pressure fluctuations and vibration problems caused by uneven flow rates. It can also quickly respond when abnormal flow rates or pressures are detected and close or restrict the flow rate.

[0079] The present invention is also provided with a control system for controlling the driving component 7 to drive the cleaning component 6 to clean the scale on the inner wall of the first loop pipe 1. The control system includes sensors, controllers, actuators, etc., which are used to monitor and control the working state of the cleaning component 6. The driving component 7 is responsible for driving the cleaning component 6 to perform reciprocating motion or other forms of motion to effectively clean the scale on the inner wall of the first loop pipe 1.

[0080] The control system can automatically control the operation of the cleaning component 6 according to a preset program without manual intervention, improving work efficiency. By using sensors to monitor the working state of the cleaning component 6 in real time, such as position, speed, pressure, etc., it ensures that it is always in the best working state. It can also help quickly locate and solve problems through the built-in diagnostic function, shortening the maintenance time. Setting up an automated control system simplifies the operation process, reduces the need for manual intervention, lowers the training cost, and ensures the stability and reliability of the cleaning process.

[0081] A method for using a manifold with a self-cleaning function includes the following specific steps:

[0082] S1, after the manifold has been continuously operating for a time T, the control system drives the two moving units 701 to move away from each other along the track 703. The moving unit 701 pushes the cleaning component 6 to move inside the first loop pipe 1 through the crankshaft 702.

[0083] S2, when the cleaning component 6 moves to the set position, the two cleaning components 6 stop moving, and the control system drives the two moving units 701 to move in the reverse direction, and the cleaning component 6 starts to work.

[0084] S3, during the cleaning process, the scraping blade 601 closely adheres to the inner wall of the first loop pipe 1 to remove scale, and the lumpy scale enters the storage bin 605.

[0085] S4, when the cleaning component 6 moves to the stop area, the storage bin 605 abuts against the sealing plate 10.

[0086] S5. Open the sewage outlet 1002 from the outside of the sealing plate 10. After cleaning the scale inside the storage bin 605, close the sewage outlet 1002, and the cleaning work is completed.

[0087] The operation time of the manifold can be automatically detected through the control system to ensure cleaning at an appropriate time, reducing manual intervention. The coordinated work of the motion unit 701 and the crankshaft 702 realizes precise control of the cleaning component 6, ensuring that it can cover the entire area to be cleaned. The design of the storage bin 605 enables the scraped scale to be concentrated in this area, facilitating subsequent cleaning and treatment, improving the cleaning efficiency. By centrally storing the scale or foreign objects and quickly discharging them through the sewage outlet 1002, the subsequent cleaning and maintenance work are simplified, reducing the maintenance cost and time.

[0088] In summary, the device not only improves the cleaning efficiency and quality but also optimizes the overall performance of the system, ensuring long-term stable operation.

[0089] The above are only the preferred embodiments of the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A manifold with self-cleaning function, characterized in that: It comprises a first circle tube (1), a second circle tube (2), an inlet tube (3), a first outlet tube (4), a second outlet tube (5), a cleaning component (6), and a driving component (7); The first tube circle (1) and the second tube circle (2) are semi-annular tubes, the tube opening cross section of the first tube circle (1) is circular, the tube opening cross section of the second tube circle (2) is arched, sealing plates (10) are provided at the tube openings at both ends of the first tube circle (1), the sealing plates (10) are provided with notches (11), and the second tube circle (2) is connected to the notches (11) on the sealing plates (10), so that the first tube circle (1) and the second tube circle (2) form an annular fluid channel, and the fluid channel surrounds the outer wall of the washing tower (9); The inlet pipe (3) is connected to the side of the first coil pipe (1), the first outlet pipe (4) and the second outlet pipe (5) are connected to the top of the first coil pipe (1), and the first outlet pipe (4) and the second outlet pipe (5) are symmetrically arranged with respect to the inlet pipe (3); The driving component (7) passes through the sealing plate (10) and is connected to the cleaning component (6), and is used to drive the cleaning component (6) to move along the inner wall of the first coil tube (1); The cleaning components (6) are provided in two groups and are arranged inside the first circle tube (1). The two groups of cleaning components (6) are symmetrically arranged with respect to the inlet tube (3). The cleaning components (6) comprise a scraper blade (601), a support rod (602) and a center rod (603). The scraper blade (601) is an annular structure, and one end of the scraper blade (601) is in contact with the inner wall of the first circle tube (1). The center rod (603) is arranged at the center of the scraper blade (601) and is connected to the inner side of the scraper blade (601) through a plurality of support rods (602). An arc-shaped vertical plate (604) is provided on the inner side of the scraper blade (601). One end of the scraper blade (601) away from the inner wall of the first circle tube (1) is connected to the vertical plate (604) to form a storage bin (605) of an annular structure.

2. The manifold with self-cleaning function according to claim 1, characterized in that: An elastic sealing portion is provided at the end of the vertical plate (604) away from the connection end with the scraper blade (601); the length of the vertical plate (604) is greater than the length of the scraper blade (601); and the scraper blade (601), the vertical plate (604), the inner wall of the first coil (1), and the sealing plate (10) can form a closed space.

3. The manifold with self-cleaning function according to claim 1, characterized in that: The cross-sections of the plurality of support rods (602) distributed radially along the central rod (603) are streamlined, and the angle between the support rods (602) and the central rod (603) is an acute angle, and the size of the angle is 80°-90°.

4. The manifold with self-cleaning function according to claim 1, characterized in that: The driving assembly (7) comprises two motion units (701) symmetrically arranged with respect to the inlet pipe (3), two crankshafts (702) and a track (703); the track (703) is of a semicircular structure; the motion units (701) and the crankshafts (702) are arranged correspondingly; the motion units (701) are arranged on the track (703) and can move along the track (703); one end of one of the crankshafts (702) is connected to its corresponding motion unit (701), and the other end passes through the sealing plate (10) and is connected to the cleaning assembly (6).

5. The manifold with self-cleaning function according to claim 4, characterized in that: The curvature radii of the crankshaft (702) and the track (703) are both equal to the curvature radius of the first coil (1).

6. The manifold with self-cleaning function according to claim 1, characterized in that: The sealing plate (10) comprises a sealing block (1001), a sewage outlet (1002) and a partition (1003); the sealing block (1001) is arranged inside the first coil (1), and the sewage outlet (1002) is arranged at the bottom of the partition (1003).

7. The manifold with self-cleaning function according to claim 1, characterized in that: It also includes a control system, which is used to control the movement of the drive component (7).

8. A method for using a manifold with a self-cleaning function according to any one of claims 1 to 7, characterized in that: The specific steps include: S1, after the manifold has been running continuously for a period of time T, the control system drives the two motion units (701) to move in opposite directions along the track (703), and the motion units (701) push the cleaning assembly (6) to move in the first circle of tubes (1) via the crankshaft (702); S2, when the cleaning components (6) move to the set position, the two cleaning components (6) stop moving, the control system drives the two motion units (701) to move in the opposite direction, and the cleaning components (6) start working; S3, during the cleaning process, the scraper blade (601) is in close contact with the inner wall of the first coil tube (1) to remove scale, and the block scale enters the storage bin (605); S4, when the cleaning component (6) moves to the stop zone, the storage bin (605) abuts against the sealing plate (10); S5, opening the drain outlet (1002) from the outside of the sealing plate (10), cleaning the scale inside the storage bin (605), and then closing the drain outlet (1002), and the cleaning work is completed.

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