Embedded ceramic petal leather cup with wear-resistant structure

Abstract

The invention discloses an embedded ceramic wear-resistant structure petal leather cup, and particularly relates to a pipe cleaner, the embedded ceramic wear-resistant structure petal leather cup comprises a pipe body framework, a top cover is fixedly installed in a top port of the pipe body framework, the pipe body framework is sleeved with a plurality of petal leather cup bodies, and a plurality of composite beads which are close to a cup opening and are distributed in a circumferential array mode are movably arranged on the outer side faces of the petal leather cup bodies; the outer side wall of the petal leather cup body is provided with flow channel grooves penetrating to the section of a cup opening, and each flow channel groove is located between the two composite beads and distributed in the middle. The flow channel grooves are distributed in an inclined mode and fixedly communicated with a flow channel formed in the petal leather cup body and an air hole formed in the pipe body framework. Through the combined design of the runner grooves and the composite beads, the wear resistance and the cleaning efficiency are improved, self-rotation and intelligent airflow control are achieved through airflow guiding and dynamic adjustment, and the self-rotation intelligent airflow cleaning device is suitable for complex pipeline cleaning scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to a pig, in particular to an embedded ceramic wear-resistant petal petal bowl structure. BACKGROUND

[0002] The oil and gas pipeline wall fouling and medium impurities deposition can cause the transportation efficiency to be reduced, the energy consumption to be increased, and the pipeline to be blocked, which can cause significant economic losses and environmental risks. Therefore, regular implementation of efficient pigging operation is the core measure to ensure the safe operation of the pipeline and reduce the transportation cost. The performance of the pig directly determines the pigging effect, and the passing ability, wear resistance and scale removal capacity are the key to solve the above technical problems.

[0003] At present, there are various types of pigs in the market, and the most widely used is the petal bowl pig. Its specific structure can refer to the anti-deformation petal bowl pig disclosed in Chinese patent CN107030072A (published on August 11, 2017).

[0004] The prior art has the following disadvantages: the passing ability of the oil and gas pipeline petal bowl pig depends on the deformation ability of the petal bowl, and the wear resistance and scale removal capacity are closely related to the structure and material of the petal bowl, and the service life is directly affected by the wear resistance of the petal bowl. The petal bowl of the current mainstream product is made of single polyurethane material, and only the overall backward inclination of the contact surface is considered in the cross-sectional structure design to improve the deformation ability, which limits the actual deformation ability. In order to enhance the wear resistance, some products will uniformly arrange composite beads on the outer circumference of the polyurethane petal bowl, and be fixed by bolts.

[0005] However, polyurethane as a non-metallic material has limited wear resistance. The pigging operation requires a certain positive pressure between the petal bowl and the pipe wall to ensure the scale removal effect, and the pressure is proportional to the running friction force, and the increase of the friction force will further aggravate the wear. Therefore, in the design of the petal bowl structure, multiple performances need to be considered, and it is often difficult to simultaneously consider the ideal wear resistance, deformation and scale removal capacity.

[0006] Based on the above problems, the wear resistance can be improved by adding universal composite wear-resistant balls, but there are still three defects: first, the installation process of the ball is complex and the cost is high; second, the impurities in the pipeline can cause the ball to be stuck, and the functional reliability is insufficient; third, the steel ball may produce sparks when rubbing with the pipe wall, which may cause safety hazards. SUMMARY

[0007] The purpose of the present application is to provide an embedded ceramic wear-resistant petal petal bowl structure to solve the above problems.

[0008] In order to achieve the above purpose, the present application provides the following technical scheme: The embedded ceramic wear-resistant petal skin bowl of structure includes the pipe body framework, the top port is fixedly installed with the top cover, a plurality of petal skin bowl bodies are sleeved on the pipe body framework, and a plurality of composite beads are movably arranged on the outer side of the petal skin bowl body and are distributed in a circular array close to the bowl mouth. The outer side wall of the petal skin bowl body is provided with a flow channel groove penetrating to the bowl mouth section, and each flow channel groove is distributed in the middle between two composite beads. The flow channel groove is inclined and is fixedly communicated with a flow channel formed in the petal skin bowl body and a gas hole formed on the pipe body framework, and the flow channel groove is used for guiding the airflow to flow in the opposite direction of the advancing direction of the pipe body framework to make the pipe body framework and the petal skin bowl body rotate synchronously.

[0009] As preferred, the outer side of the petal skin bowl body is divided into a non-stress region and a stress region according to whether it is in contact with the pipeline to be cleaned, wherein: The end of the flow channel groove is distributed from the stress region to the center point of the non-stress region; The circumferential radius of the flow channel groove increases from one end close to the bowl mouth to the other end.

[0010] As preferred, one end of the flow channel groove is a lower inclined part, the other end is an upper horizontal part, and the two maintain a predetermined interval in the axial direction in the default state to form a gap groove; When the stress region is stressed to make the shaft contract, the lower inclined part and the upper horizontal part move towards each other and are tangent to each other, so that the gap groove disappears, the flow channel groove is tangent to the one end of the bowl mouth and the pipeline to be cleaned, and a cylinder is formed; When the airflow enters the cylinder along the flow channel groove, the lower inclined part and the upper horizontal part expand to open the gap groove again.

[0011] As preferred, the bottom port of the pipe body framework is fixedly installed with a wind receiving hopper seat fixed by a bolt, one end of the wind receiving hopper seat towards the outside of the pipe body framework is a flow guide groove, the end port of the flow guide groove is fixedly installed with a horizontally distributed beam part, and the beam part is threadedly connected with a screw rod penetrating through the flow guide groove and extending into the pipe body framework; The end of the screw rod is fixedly installed with a spring seat maintaining a predetermined interval with the flow guide groove; A plurality of flow guide holes are formed in the flow guide groove, and the side of the flow guide groove towards the inside of the pipe body framework is covered with a soft leather cover; A conical spring is arranged between the soft leather cover and the spring seat.

[0012] As preferred, the top cover is fixedly installed with a whistle part, and the air inlet end of the whistle part is a spiral airflow channel.

[0013] As preferred, the inner side of the bowl mouth is provided with a plurality of deformation grooves arranged in a circumferential array, the inner bottom of the deformation groove is an inner rounded surface R, and the edge is an outer rounded surface r, and r ≤ 1 / 2R. The inner side of the bowl mouth is an inner bowl mouth rounded surface, and the deformation grooves are distributed on the inner bowl mouth rounded surface, and the cross section of the bowl mouth is thin blade-shaped.

[0014] The cross section of the deformation groove is isosceles trapezoidal structure.

[0015] As preferred, the composite beads are ceramic beads.

[0016] As preferred, the number of the deformation grooves is M, and M = 2N+1, wherein: N > 2, and N is a positive integer, and M is an odd number.

[0017] As preferred, each of the deformation grooves is distributed at the center of the linear distance of two composite beads.

[0018] As preferred, the pipe body skeleton is symmetrically welded with an upper mounting platform and a lower mounting platform; Further comprising a skin bowl group, the number of which is two, and which is inserted into the outer wall on the opposite side of the upper mounting platform and the lower mounting platform at both ends of the pipe body skeleton and fixed by the fixed bolts.

[0019] The skin bowl group is assembled by nesting two petal skin bowl bodies, and the joint surface between the two is distributed with a grommet; The composite beads on the plurality of petal skin bowl bodies are distributed in a staggered manner.

[0020] In the above technical solution, the embedded ceramic wear-resistant structure petal skin bowl provided by the application has the following beneficial effects: by arranging the composite beads on the outer side of the petal skin bowl body, the direct contact and sliding friction between the skin bowl and the inner wall of the pipeline are reduced, thereby significantly reducing wear and prolonging the service life. The application of ceramic material further enhances the wear resistance, and is suitable for high-pressure and high-wear pipeline cleaning environment.

[0021] Secondly, the inclined design of the flow channel groove can guide the airflow to flow in the opposite direction of the advancing direction of the pipe body skeleton, generate a reaction torque, and make the pipe body skeleton and the petal skin bowl body rotate synchronously in the circumferential direction. This rotational motion enhances the scraping and cleaning effect of the skin bowl on the inner wall of the pipeline, avoids local wear, and improves the cleaning uniformity and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0023] Figure 1 The overall structural schematic diagram provided by the embodiments of the present application is shown in the figure. Figure 2 The structural schematic diagram of the petal skin bowl body of the first embodiment provided by the embodiments of the present application is shown in the figure. Figure 3 The convex cross-sectional structural schematic diagram provided by the embodiments of the present application is shown in the figure. Figure 4 The cross-sectional structural schematic diagram of the deformation groove provided by the embodiments of the present application is shown in the figure. Figure 5 The scanning removal path schematic diagram of the deformation groove provided by the embodiments of the present application is shown in the figure. Figure 6 The structural schematic diagram of the flow channel groove provided by the embodiments of the present application is shown in the figure. Figure 7 The cross-sectional structural schematic diagram of the petal skin bowl body provided by the embodiments of the present application is shown in the figure. Figure 1 Figure 8 The structural schematic diagram of the petal skin bowl body provided by the embodiments of the present application is shown in the figure. Figure 9 The structural schematic diagram of the petal skin bowl body provided by the embodiments of the present application is shown in the figure.

[0024] Explanation of reference signs: 1, petal skin bowl body; 2, composite bead; 3, deformation groove; 4, flow channel groove; 41, lower edge inclined part; 42, upper edge horizontal part; 543, pinch seam groove; 100, pipe body framework; 101, fixed bolt; 102, grommet; 200, flow guide groove; 201, screw rod; 202, spring seat; 203, conical spring; 204, air receiving hopper seat; 205, soft skin cover. DETAILED DESCRIPTION

[0025] In order to make those skilled in the art better understand the technical solutions of the present application, the following will further introduce the present application in combination with the drawings.

[0026] As Figures 1-9 ​As shown, an embedded ceramic wear-resistant petal skin bowl structure includes a pipe body framework 100, a top cover 5 is fixedly installed in the top port of the pipe body framework 100, a plurality of petal skin bowl bodies 1 are sleeved on the pipe body framework 100, and a plurality of composite beads 2 are movably arranged on the outer side of the petal skin bowl body 1 and are distributed in a circular array close to the bowl mouth. A flow channel groove 4 is formed in the outer side wall of the petal skin bowl body 1 and extends to the section of the bowl mouth, and each flow channel groove 4 is distributed in the middle between two composite beads 2. It should be noted that the flow channel groove 4 is inclinedly distributed and fixedly communicated with a flow channel formed in the petal skin bowl body 1 and a gas hole formed on the pipe body framework 100, and the flow channel groove 4 is used for guiding the airflow to flow in the opposite direction of the advancing direction of the pipe body framework 100 to make the pipe body framework 100 and the petal skin bowl body 1 synchronously rotate circumferentially.

[0027] Specifically, by arranging the composite beads on the outer side of the petal skin bowl body 1, the direct contact and sliding friction between the petal skin bowl body 1 and the inner wall of the pipeline are reduced, thereby significantly reducing the wear and prolonging the service life. The application of the composite beads made of ceramic material further enhances the wear resistance and is suitable for high-pressure and high-wear pipeline cleaning environments. Secondly, the inclined design of the flow channel groove 4 can guide the airflow to flow in the opposite direction of the advancing direction of the pipe body framework 100, generate a reaction torque, and make the pipe body framework 100 and the petal skin bowl body 1 synchronously rotate circumferentially. This rotating motion (the rotating direction is determined by the inclination direction of the flow channel groove 4) enhances the scraping and cleaning effect of the petal skin bowl on the inner wall of the pipeline, avoids local wear, and improves the cleaning uniformity and efficiency.

[0028] As a further provided embodiment of the present application, in combination with Figure 6 As shown, the outer surface of the petal skin bowl body 1 is divided into a non-stressed area and a stressed area according to whether it is in contact with the pipeline to be cleaned, wherein: The end of the flow channel groove 4 is distributed from the stressed area to the center point of the non-stressed area; The circumferential radius of the flow channel groove 4 increases from one end close to the bowl mouth to the other end.

[0029] Specifically, the end of the flow channel groove (i.e., the end where the upper horizontal part 42 is located) is located in the non-stressed area which is not directly contacted by pressure. Therefore, when the stressed area is pressed to cause the bowl mouth to shrink, the non-stressed area can relatively freely deform, so that the lower inclined part 41 and the upper horizontal part 42 of the flow channel groove can realize tangential fitting and separation.

[0030] As a further provided embodiment of the present application, in combination with Figure 8 and Figure 9As shown, one end of the flow channel groove 4 is a lower edge inclined portion 41, the other end is an upper edge horizontal portion 42, and by default, the two maintain a predetermined interval in the axial direction to form a gap groove 43; and when the force area is stressed to make the shaft contract, the lower edge inclined portion 41 and the upper edge horizontal portion 42 move towards each other and tangentially fit, so that the gap groove 43 disappears, and the flow channel groove 4 is closed at one end of the bowl opening and tangentially closed with the pipeline to be cleaned, so as to form a cylinder; and when the airflow enters the cylinder along the flow channel groove 4, the lower edge inclined portion 41 and the upper edge horizontal portion 42 expand to reopen the gap groove 43.

[0031] During operation, the gas pressure enters the inside of the pipe body framework 100, and then is blocked by the top cover 5. The airflow enters the flow channel groove 4 through the flow channel. Because when the bowl opening of the petal skin bowl body 1 is in contact with the inner wall of the pipeline in the force area and is pressed, the circumferential axial direction contracts, the lower edge inclined portion 41 and the upper edge horizontal portion 42 move towards each other until they fit, so that the gap groove 43 disappears. This action enables all the bowl opening edges of the petal skin bowl body 1 to be tangentially connected with the inner wall of the pipeline to form a temporary and complete closed "cylinder". When the entering airflow is located in the cylinder and is pushed by the gas pressure, the lower edge inclined portion 41 and the upper edge horizontal portion 42 are squeezed and fit on the pipeline wall to be cleaned. At this time, the gap groove 43 is opened again by the gas pressure, thereby creating an efficient pulse jet mechanism. The accumulated high-pressure gas is sprayed out at high speed from the narrow gap that is reopened, forming a jet flow pointing to the rear. This jet action not only directly produces a cleaning effect on the pipeline wall, but more importantly, according to Newton's third law, it generates a reaction force that propels the whole petal bowl to move forward, thereby enhancing the forward driving force. At the same time, the jet along the inclined flow channel groove 4 also finally drives the petal bowl to rotate circumferentially, achieving full coverage of cleaning.

[0032] As further provided by the present application, another embodiment is shown in Figure 8 and Figure 9 As shown, the bottom port of the pipe body framework 100 is fixedly installed with a wind receiving hopper seat 204 fixed by a bolt. One end of the wind receiving hopper seat 204 towards the outside of the pipe body framework 100 is a flow guide groove 200. The flow guide groove 200 is fixedly installed with a cross beam portion centrally distributed. The cross beam portion is threadedly connected with a screw rod 201 that penetrates through the flow guide groove 200 and extends into the pipe body framework 100. The end portion of the screw rod 201 is fixedly installed with a spring seat 202 that maintains a predetermined interval with the flow guide groove 200. Secondly, a plurality of flow guide holes are formed in the flow guide groove 200. The side of the flow guide groove 200 towards the inside of the pipe body framework 100 is covered with a soft skin cover 205. Furthermore, a conical spring 203 is arranged between the soft skin cover 205 and the spring seat 202.

[0033] Specifically, the soft cover 205 in the embodiment has a certain damping force under the action of the conical spring 203, and can only push the pig to move when the tail end gas pressure of the pig reaches a predetermined value. At this time, the gas flow will enter and push the soft cover 205 not to cover the outside of the air receiving hopper seat 204 through the flow guide hole, so that the gas flow enters the inside of the pipe body framework 100, and the gas flow impacts the cylinder at this time, and the cylinder is expanded, so that the lower inclined part 41 and the upper horizontal part 42 press the pipe wall to be cleaned, and the gap groove 43 is expanded again at this time, so that a high-efficiency pulse jet mechanism is created. The accumulated high-pressure gas is jetted out at high speed from the narrow gap groove which is opened again, forming a jet flow pointing to the rear. This jetting action not only directly produces a cleaning effect on the pipe wall, but more importantly, according to Newton's third law, it will generate a reaction force to push the whole leather bowl forward, enhancing the forward driving force. At the same time, the jet flow along the inclined flow channel groove 4 also finally drives the leather bowl to rotate circumferentially, realizing full coverage of cleaning.

[0034] As further provided in the present application, another embodiment is combined with Figure 8 and Figure 9 As shown, the top cover 5 is fixedly installed with a whistle part 52, and the air inlet end of the whistle part 52 is a spiral airflow channel 51.

[0035] Specifically, the gas flow entering the inside of the pipe body framework 100 will also be discharged through the whistle part 52 through the spiral airflow channel 51, so that the whistle part 52 makes a sound, which can be captured by external sound capturing instruments to locate the pig.

[0036] Secondly, when the pig is completed, the residual gas pressure at the tail end of the pig will also be discharged through the whistle part 52, so that when the pig is taken, the pig will not be pushed by the residual gas pressure and will not hurt the operator.

[0037] As further provided in the present application, another embodiment is combined with

[0038] Specifically, the above-mentioned composite beads 2 can be made of non-metallic materials, such as polyethylene plastic beads, composite polyethylene plastic beads, glass beads, etc.

[0039] The cross section of the deformation groove 3 can be V-shaped, U-shaped, inverted Ω-shaped, etc.

[0040] Secondly, the skirt of the cup (i.e. the cup mouth of the petal-shaped cup body 1) is subjected to radial extrusion due to the interference design. The deformation groove 3 provides a preset accommodation space for the elastic deformation of the polyurethane material, enabling it to deform more greatly and more orderly. This not only significantly reduces the resistance when passing through complex pipe sections such as elbows and reducers, but also fundamentally avoids the risk of the cup turning over, tearing or the pig being blocked due to stress concentration. Secondly, under the same interference amount working condition, the actual contact area between the skirt of the cup with the deformation groove 3 and the pipeline to be cleaned is more optimized, effectively avoiding the problem of excessive local stress. According to the principle of tribology, the wear amount is positively correlated with the normal pressure. Therefore, the structure of the deformation groove 3 can significantly reduce friction loss by reducing and homogenizing the contact normal pressure between the skirt and the pipe wall, thereby increasing the wear resistance of the petal-shaped cup body 1 by more than 30%.

[0041] Further, when the petal-shaped cup body 1 is inserted into the inside of the pipeline to be cleaned, the overall structure of the petal-shaped cup body 1 is extruded in the circumferential direction after the pipeline to be cleaned is extruded, and the composite bead 2 contacts the pipe wall for wear resistance, and the deformation ability of the deformation groove 3 enables the petal-shaped cup body 1 to ensure the sealing of the skirt and the pipeline to be cleaned. Thus, the overall wear resistance and pigging capacity are improved.

[0042] Secondly, the overall structure of the petal-shaped cup body 1 is extruded in the circumferential direction after the pipeline to be cleaned is extruded, and the deformation groove 3 and the flow channel groove 4 are subjected to extrusion force and thus deform accordingly, so that the petal-shaped cup body 1 has greater circumferential contraction ability and is more easily adapted to the movement inside the joint pipe fittings such as elbows, reducers and adapters. Since the entry of gas will extrude the lower inclined part 41 and the upper horizontal part 42 against the pipe wall to be cleaned, the contact between the petal-shaped cup body 1 and the inner wall of the pipeline to be cleaned can also be ensured to be sufficient, and the cleaning effect is guaranteed.

[0043] Further, the inner part and the outer edge of the deformation groove 3 are designed with a round corner, wherein the inner round corner radius is R, the edge corner radius is r, and r ≤ 1 / 2R ( Figure 4 ). The round corner structure realizes smooth transition in the geometric plane, effectively suppresses the stress concentration phenomenon, and prevents fatigue failure caused by excessive local stress. By optimizing the stress distribution, this design enables the peripheral structure to deform coordinately and provide uniform support when bearing complex loads, thereby significantly improving the overall deformation ability and pigging performance of the petal-shaped cup body 1. The specific values of R and r can be finely matched according to actual working conditions to meet different engineering requirements.

[0044] In the specific embodiment process, the pig is composed of a pipe body framework 100 and a cup group assembled on the pipe body framework 100, as shown in detail in Figure 1 . The pipe body framework 100 is symmetrically welded with an upper mounting platform and a lower mounting platform; The number of the skin bowl groups is two, which are inserted into the outer walls on the opposite sides of the upper mounting platform and the lower mounting platform at the two ends of the pipe body framework 100 respectively and are fixed by the fixed bolts 101. The skin bowl group is assembled by two petal skin bowl bodies 1, and the joint surface between the two petal skin bowl bodies 1 is distributed with the grommet 102.

[0045] It is noted that the composite beads 2 on the plurality of petal skin bowl bodies 1 are distributed in a staggered manner. That is, from one end of the pipe body framework 100, the composite beads 2 on the plurality of petal skin bowl bodies 1 are distributed in a circumferential equidistant manner. The purpose is to stagger the design to make the load (contact stress and deformation stress) more evenly dispersed in the circumferential direction, avoiding stress superposition. This makes the deformation capacity and wear and dirt removal capacity of the petal skin bowl body 1 fully exerted at different positions, and the overall performance is improved.

[0046] As a further provided embodiment of the present application, the inner side of the bowl mouth of the petal skin bowl body 1 is an inner bowl mouth fillet surface, and the deformation groove 3 is distributed on the inner bowl mouth fillet surface, and the cross section of the bowl mouth is thin blade-shaped.

[0047] Specifically, the region of the petal skin bowl body 1 where the inner bowl mouth fillet surface is located constitutes a skirt structure thereof. In this embodiment, by adopting a thin blade-shaped bowl mouth design, the deformation groove 3 is more prone to deformation when the petal skin bowl body 1 is inserted into the pipeline to be cleaned. This deformation promotes the thin blade-shaped bowl mouth to adapt to the change of the groove body, thereby more effectively adhering to the inner wall of the pipeline to be cleaned.

[0048] As a further provided optimal embodiment of the present application, as shown in Figure 4 The cross section of the deformation groove 3 in the present embodiment is isosceles trapezoidal structure.

[0049] Specifically, in combination with Figure 3 As shown, the isosceles trapezoidal structure of the cross section provides sufficient deformation accommodation space for the skirt polyurethane material through the lower base width, and at the same time, retains sufficient material cross section through the upper base width, ensuring the continuous support strength. Thus, the skirt can maintain good support force while obtaining sufficient deformation capacity, providing the required normal pressure.

[0050] Secondly, the deformation grooves 3 are distributed along the outer side of the petal skin bowl body 1, and the number distribution thereof cooperates with the design of the scanning path of the deformation groove 3 to make the force requirement of the petal skin bowl body 1 be as follows: In the region where the main support function is required, the polyurethane structure is wide and thick, so the scanning removes less material (as shown in Figure 5 ​In the wear-resistant functional area (the area where the composite beads 2 are located), the polyurethane has a moderate thickness, and the material removal amount is correspondingly moderate Figure 3 In the skirt sealing area, in order to ensure the flexible sealing performance, the structure needs to be light and thin, and therefore a large amount of material is removed Figure 3

[0051] The path extends from the regular working surface of the skin bowl to the limit deformation position, so that the deformation groove can still effectively guide the deformation even in extreme working conditions, and the structural function is complete and reliable.

[0052] As a further provided optimal embodiment of the present application, the composite beads 2 are ceramic beads, and based on the processing technology provided in the above embodiment, the composite beads 2 are integrally formed with the petal skin bowl body 1, i.e., fixedly connected.

[0053] Specifically, the petal skin bowl body 1 is made by one-time pouring and die forming process, and the detailed steps are as follows: Ceramic bead pretreatment: Zirconium oxide (ZrO2) ceramic beads are selected, and are treated by pickling and silane coupling agent to enhance the bonding force with polyurethane; Mold fixing: The ceramic beads are fixed in the mold cavity through the positioning fixing groove to ensure that the exposed height is 5%-15%; Pouring and vulcanization: After the polyurethane mixture is vacuum degassed, it is injected into the mold at 100-110°C, and vulcanized for 60-90 minutes in a specific environment; Post-curing finishing: After demolding, post-curing is performed in a 100°C oven for 4-8 hours, the flash is finished, and the size and bonding strength are inspected.

[0054] As a further provided embodiment of the present application, the number of deformation grooves 3 is M, and M = 2N+1, where: N>2, N is a positive integer, and M is an odd number. Each deformation groove 3 is distributed at the center of the straight line distance between two composite beads 2.

[0055] Specifically, when there are local protrusions or strong impurities on the inner wall of the pipeline, a single point of the petal skin bowl body 1 will bear impact load. In the asymmetric structure with an odd number of grooves, the impact force cannot be directly transmitted through the symmetric point in the diameter direction, but is forced to be redistributed and dispersed to multiple adjacent structural units, thereby greatly reducing the stress peak value. Secondly, this design also avoids the formation of repeated high stress concentration areas at the symmetric point, significantly reducing the cumulative rate of material fatigue damage, thereby enhancing the long-term durability of the petal skin bowl body 1 under alternating loads.

[0056] It should be noted that if an even number of symmetric distribution is used, the impact force will be directly transmitted to the symmetric point, resulting in a high stress concentration in this area, greatly increasing the risk of tearing or early failure. ​​

[0057] As a further provided embodiment of the present application, the exposed area of the composite bead 2 on the outer side of the petal skin bowl body 1 accounts for 5%-15% of the outer spherical surface area.

[0058] Specifically, the pre-embedded depth of more than 85% ensures sufficient anchoring force to prevent the ceramic beads from falling off under complex load. The exposed height of 5%-15% makes the contact between the ceramic beads and the pipe wall a very small point. Even if a part is worn out, it is still a very small point, and the contact area is still very small, still meeting the high wear resistance requirement. Therefore, the design ratio provided by the present embodiment provides ideal constraint and rolling space for ceramic beads in extreme environments, ensuring the structural stability thereof.

[0059] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. An embedded ceramic wear-resistant petal skin bowl, comprising a tubular body framework (100), a top cover (5) is fixedly installed in the top port of the tubular body framework (100), characterized in that, The pipe body skeleton (100) is sleeved with a plurality of petal skin bowl bodies (1), and the outer side of the petal skin bowl body (1) is movably provided with a plurality of composite beads (2) which are close to the bowl mouth and are distributed in a circumferential array; The outer side wall of the petal skin bowl body (1) is provided with a flow channel groove (4) which penetrates to the section of the bowl mouth, and each flow channel groove (4) is distributed in the middle between two composite beads (2); The flow channel groove (4) is inclined and is fixedly communicated with the flow channel formed in the petal skin bowl body (1) and the air hole formed in the pipe body skeleton (100), and the flow channel groove (4) is used for guiding the airflow to flow in the opposite direction of the advancing direction of the pipe body skeleton (100) so as to synchronously rotate the pipe body skeleton (100) and the petal skin bowl body (1) in the circumferential direction.

2. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, The outer side of the petal skin bowl body (1) is divided into a non-stress region and a stress region according to whether it is in contact with the pipeline to be cleaned, wherein: The end of the flow channel groove (4) is distributed from the stress region to the center point of the non-stress region; The circumferential radius of the flow channel groove (4) increases from one end close to the bowl mouth to the other end.

3. An embedded ceramic wear structure petal skin bowl according to claim 2, wherein, One end of the flow channel groove (4) is a lower inclined part (41), and the other end is an upper horizontal part (42), and in the default state, the two maintain a predetermined distance in the axial direction to form a gap groove (43); When the stress region is stressed to make the shaft contract, the lower inclined part (41) and the upper horizontal part (42) move towards each other and are tangent to each other, so that the gap groove (43) disappears, the flow channel groove (4) is tangent to the end of the bowl mouth and the pipeline to be cleaned, and a cylinder is formed; When the airflow enters the cylinder along the flow channel groove (4), the lower inclined part (41) and the upper horizontal part (42) expand to open the gap groove (43) again.

4. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, The bottom port of the pipe body skeleton (100) is fixedly provided with a wind receiving hopper seat (204) which is fixed by bolts, one end of the wind receiving hopper seat (204) towards the outside of the pipe body skeleton (100) is a flow guide groove (200), the end of the flow guide groove (200) is fixedly provided with a horizontally distributed beam part, and the beam part is threadedly connected with a screw rod (201) which penetrates through the flow guide groove (200) and extends into the pipe body skeleton (100); The end of the screw rod (201) is fixedly provided with a spring seat (202) which maintains a predetermined distance from the flow guide groove (200); A plurality of flow guide holes are formed in the flow guide groove (200), and the side of the flow guide groove (200) towards the inside of the pipe body skeleton (100) is covered with a soft skin cover (205); A conical spring (203) is arranged between the soft skin cover (205) and the spring seat (202).

5. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, The top cover (5) is fixedly provided with a whistle part (52), and the air inlet end of the whistle part (52) is a spiral airflow channel (51).

6. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, A plurality of deformation grooves (3) are formed in the inner side of the bowl mouth in a circumferential array, the inner side bottom of the deformation groove (3) is an inner fillet surface R, and the edge is an outer fillet surface r, and r ≤ 1 / 2R; The inner side of the bowl mouth is an inner bowl mouth fillet, and the deformation grooves (3) are distributed on the inner bowl mouth fillet, and the cross section of the bowl mouth is thin blade shape. The cross section of the deformation groove (3) is isosceles trapezoidal structure.

7. An embedded ceramic wear structure petal skin bowl according to claim 6, wherein, The number of the deformation groove (3) is M, and M = 2N+1, wherein: N > 2, and N is a positive integer, and M is an odd number.

8. An embedded ceramic wear structure petal skin bowl according to claim 6, wherein, Each of the deformation grooves (3) is distributed at the center of the straight line distance of two composite beads (2).

9. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, The composite bead (2) is a ceramic ball.

10. An embedded ceramic wear structure petal skin bowl according to claim 1, wherein, The pipe body framework (100) is symmetrically welded with an upper mounting platform and a lower mounting platform. It also includes a leather bowl group, the number of which is two, and is inserted into the outer wall on the opposite side of the upper mounting platform and the lower mounting platform by the pipe body framework (100), and is fixed by the fixed bolt (101) penetrating. The leather bowl group is assembled by two petal leather bowl bodies (1), and the joint surface between the two is distributed with a grommet (102). The composite beads (2) on the plurality of petal leather bowl bodies (1) are distributed in a staggered manner.

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