Turbulent flow assembly arranged in heat exchanger or tubular reactor and used for enhancing heat and mass transfer
By using plum petal-shaped spoiler components in heat exchangers and tubular reactors, the problems of low heat transfer and mass transfer efficiency and easy blockage are solved, and efficient heat transfer and mass transfer and anti-blocking performance are improved.
Patent Information
- Application Number
- CN202422336668.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The heat transfer mass transfer efficiency of existing heat exchangers and tubular reactors is low and easy to block. Increased material consumption will increase economic costs and occupy space.
A spoiler assembly is designed, including a central shaft and multiple perturbations. The perturbation member is composed of a shaft sleeve and an outer ring gear. The blade is in the shape of a plum petal, with a spiral angle of 20° to 45°. The outer ring gear is round or rounded triangle. The support leg is connected to the outer ring gear. The support member is a fixed sleeve and a fixed ring. The cutting spoiler groove corresponds to the blade. The material is alloy steel, chrome cast iron or composite material, and is formed by casting or stamping process.
It improves heat and mass transfer efficiency, reduces the thickness of the fluid retention layer, reduces energy consumption, enhances anti-blocking performance, fluid dispersion uniformity, and reduces the occurrence of side reactions.
Smart Images
Figure CN223138464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a functional device for enhancing heat transfer of a heat exchanger and improving the reaction efficiency of a tubular reactor, and particularly relates to a flow disturbing member for enhancing heat and mass transfer placed in a shell and tube heat exchanger or a tubular reactor. Background Art
[0002] In the chemical industry, the research on heat exchangers, reactors and their internal components is of great significance for energy conservation and emission reduction, energy efficiency improvement and technological innovation. Among them, the internal flow disturbing components in the tubes play a crucial role, especially in terms of improving the efficiency, anti-blocking and heat transfer temperature difference control of heat exchangers. The forms and structures of the internal flow disturbing components in the tubes are also the focus of people's research.
[0003] The current flow disturbing internal components mainly include various forms such as twisted tape type and wound wire type. Each form of flow disturbing member has its own advantages and disadvantages, and different forms of flow disturbing members can be selected according to different working conditions.
[0004] In chemical production, expanding the heat transfer area by increasing material consumption will not only increase the economic cost but also occupy more space positions. Therefore, a higher-efficiency heat exchanger or reactor is needed to achieve the predetermined heat and mass transfer effect in the effective space. Content of the Utility Model
[0005] Aiming at the above-mentioned prior art, on the basis of fully understanding and applying traditional flow disturbing members, by improving the structural form and fluid flow pattern and integrating the advantages of various flow disturbing members, the utility model provides a flow disturbing assembly for enhancing heat and mass transfer placed in a heat exchanger or a tubular reactor. The flow disturbing assembly has low material cost, is convenient for maintenance, has strong anti-blocking ability, can not only improve the heat and mass transfer efficiency but also reduce the investment, and is convenient for installation and maintenance.
[0006] To solve the above technical problems, the present utility model provides a flow disturbance component used for enhancing heat and mass transfer in a heat exchanger or a tubular reactor, which comprises a central shaft, and a plurality of disturbance members are assembled on the central shaft; each disturbance member includes a bushing and an external gear ring, N blades are arranged on the bushing, and the profile of each blade is in the shape of a symmetric plum blossom petal. The external gear ring is connected to the bushing through N support legs A. All the blades and all the support legs A are arranged at intervals in the circumferential direction and are evenly distributed in the circumferential direction. The blade has a spiral angle of 20° to 45°; the included angle between the support leg A and the end face of the external gear ring is 10° to 30°; the profile shape of the external gear ring is a circle with a diameter of D1 or a rounded equilateral triangle, and the centroid of the rounded equilateral triangle coincides with the center O of the circle with a diameter of D1. The height corresponding to the side of the rounded triangle is h, and 1 < (D1 / 2):h ≤ 1.3; the value range of D1 is D - (0.2 to 4 mm), where D is the inner diameter of the heat exchange tube or the tubular reactor; the tooth height of the external gear ring is H, the value range of H is 2 to 15 mm, the tooth top width is B, the value range of B is 0.5 to 3 mm; the tooth root width is B + (2 to 3 mm), the inner diameter of the external gear ring is D2, and the value range of D2 is D1 - 2H. The radial dimension from the top end of the blade to the central shaft is A, and the value range of A is D2 - 0.5H;
[0007] The distance between the disturbance members is 100 to 300 mm. On the central shaft, a support member is fixed every 300 - 1000 mm. At the same time, the distance between the disturbance member and the adjacent support member is 50 - 200 mm;
[0008] The support member includes a fixing sleeve and a fixing ring; N cutting and flow disturbance blades are arranged on the fixing sleeve, and the profile of each cutting and flow disturbance blade is in the shape of a symmetric plum blossom petal. N cutting and flow disturbance grooves are arranged on the fixing ring, and the positions of the N cutting and flow disturbance grooves correspond to the positions of the N cutting and flow disturbance blades one by one. The groove shape of the corresponding cutting and flow disturbance groove coincides with the profile shape of the cutting and flow disturbance blade; the included angle between the cutting and flow disturbance blade and the cross-section of the central shaft is 5°; the fixing sleeve and the fixing ring are connected through N support legs B, and the included angle between the support leg B and the end face of the fixing ring is 10° to 30°. All the cutting and flow disturbance blades and all the support legs B are arranged at equal angular intervals and are evenly distributed in the circumferential direction.
[0009] Furthermore, for the flow disturbance component of the present utility model, wherein:
[0010] The profile of the blade is composed of an arc line at the top edge far from the end of the bushing, left and right symmetric convex curves extending from both ends of the arc line, and an arc line connecting the end of the convex curve to the outer rotating surface of the bushing.
[0011] The projections of all the cutting spoiler grooves and all the cutting spoiler vanes in the end-up direction form a complete circle.
[0012] N = 2 - 4.
[0013] The connection relationship between the disturbing member and the central axis includes one of the following two ways:
[0014] One is: the disturbing member is fixed on the central axis, and there is an interference fit between all the disturbing members and the central axis. Bolt through-holes are provided at the positions on the shaft sleeve and the central axis where the disturbing members are installed, and the disturbing members are fixed on the central axis by bolt connectors.
[0015] The second is that the disturbing member is rotationally fitted relative to the central axis; on the central axis, spherical limiting structures are respectively provided on both axial sides of the disturbing member, and the axial distance between the disturbing member and the spherical limiting structure is 15 - 35 mm; the spherical limiting structure includes a sphere, a bolt and two nuts. The sphere is provided with a central hole for fitting with the central axis, and a through-hole for passing through the bolt that is vertically intersected with the central hole is provided on the sphere. At the same time, a radial through-hole aligned with the bolt through-hole is provided on the central axis; the outer shape of the nut is a cylinder, and the axial length of the cylinder is less than the projected length of the sphere on the central axis; concave arc surfaces are provided at both ends of the threaded hole of the nut, and the arc surfaces coincide with the spherical surface of the sphere; the sphere is sleeved on the central axis through the central hole, the bolt passes through the bolt through-hole of the sphere and the radial through-hole of the central axis at the same time, one nut is located at one end of the bolt head, and the other nut is located at the other end of the bolt; the bolt and the two nuts fix the sphere on the central axis.
[0016] In the present utility model, the support member is fixed on the central axis, coaxial radial through-holes are provided on the fixed sleeve and the central axis, and the fixed sleeve is fixed on the central axis by bolt connectors; at the same time, N expansion nails are equipped, and the fixing ring is fixed on the inner wall of the heat exchange tube or the tubular reactor by using the expansion nails.
[0017] The disturbing member and the support member are integrally formed by casting or stamping processes.
[0018] The material of the disturbing member is selected from the following materials: one of alloy steel series, chromium cast iron series, composite or gradient material series, and non-metallic wear-resistant materials.
[0019] Compared with the prior art, the beneficial effects of the present utility model are:
[0020] In the present utility model, a flow disturbance assembly designed by the present utility model is arranged inside the tubes of a shell-and-tube heat exchanger or a tubular reactor. The combined action of the flow disturbance assembly composed of multiple disturbance members causes the fluid inside the tube to be obstructed and diverted, generating secondary flow, increasing the radial velocity of the fluid in the stagnant layer inside the tube, greatly reducing the thickness of the stagnant layer on the wall surface, and significantly enhancing the heat transfer effect. At the same time, the rotational movement of the disturbance members can thoroughly scrape the dirt on the inner wall of the heat transfer tube, playing a good role in preventing fouling.
[0021] Since the blades of the disturbance members designed by the present utility model are plum-blossom-shaped diversion structures with relatively large gaps, the resistance of the fluid flowing through the disturbance members is low, and the energy consumption is greatly reduced, which is beneficial to energy conservation and consumption reduction.
[0022] In the present utility model, the outer periphery of the designed disturbance member is a toothed ring structure, which can increase the flow disturbance effect of the heat exchange tube boundary layer and reduce the boundary layer thickness.
[0023] In the present utility model, multiple disturbance members are connected by a central shaft, which can conveniently place the assembled flow disturbance assembly into the heat exchange tube, featuring easy installation and maintenance. The disturbance members rotate rapidly under the driving action of the water flow, converting the medium into a complex flow mainly dominated by rotational flow, enhancing the turbulence degree of the medium inside the tube, and strengthening the heat transfer effect.
[0024] The flow disturbance assembly of the present utility model not only improves the heat transfer and mass transfer efficiency of the heat exchanger but also enables the heat exchanger to have better anti-blocking performance. For the tubular reactor, it can achieve full dispersion of the fluid, improve the uniformity of the residence time of the fluid material, and reduce the occurrence of side reactions. Description of the Drawings
[0025] Figure 1-1 is a three-dimensional structure diagram of the first embodiment of the disturbance member in the flow disturbance assembly of the present utility model;
[0026] Figure 1-2 is Figure 1-1 the front view of the shown disturbance member;
[0027] Figure 1-3 is Figure 1-1 the side view of the shown disturbance member;
[0028] Figure 2-1 is a structural schematic diagram of the support member in the flow disturbance assembly of the present utility model;
[0029] Figure 2-2 is Figure 2-1 the side view of the shown support member;
[0030] Figure 3-1 is a schematic diagram of the fixed assembly of the disturbance member and the central shaft in a heat exchange tube or a single tube of the reactor;
[0031] Figure 3-2It is a schematic diagram of the internal structure of the heat exchange tube or the single tube of the reactor with the disturbing part fixedly assembled with the central axis;
[0032] Figure 4-1 It is a schematic diagram of the disturbing part rotating relative to the central axis and installed in the heat exchange tube or the single tube of the reactor;
[0033] Figure 4-2 It is a schematic diagram of the internal structure of the heat exchange tube or the single tube of the reactor with the disturbing part rotating relative to the central axis;
[0034] Figure 4-3 is Figure 4-1 A schematic diagram of the local structure inside the middle tube;
[0035] Figure 5 It is a schematic diagram of the shape of the rounded equilateral triangle tooth ring of the second embodiment of the disturbing part in the flow disturbing component of the present utility model;
[0036] Explanation of the reference numerals in the figure:
[0037] 1 - Central axis 2 - Support leg A 3 - Blade 4 - Outer tooth ring
[0038] 5 - Heat exchange tube or tubular reactor 6 - Gap 7 - Bush 8 - Support
[0039] 81 - Fixed sleeve 82 - Fixed ring 83 - Cutting flow disturbing blade 84 - Cutting flow disturbing groove
[0040] 85 - Support leg B 86 - Expansion nail hole 9 - Expansion nail 10 - Bolt
[0041] 11 - Nut 12 - Sphere 13 - Bolt connection Detailed implementation manner
[0042] The design concept of a flow disturbance component proposed by the present utility model, which is placed in a heat exchanger or a tubular reactor to enhance heat and mass transfer, is as follows: In order to improve the anti-blocking ability of the heat exchanger or the tubular reactor, while improving the heat and mass transfer efficiency, and considering reducing the material cost, facilitating installation and maintenance, thereby reducing the investment of the whole set of equipment, a multi-stage flow disturbance structure with a plum blossom petal-shaped blade is specifically designed. Each disturbance member is provided with three legs that generate flow disturbance and stirring effects, and a multi-leaf plum blossom petal-shaped blade that plays a guiding and swirling role. By organically combining the disturbance member with the flow channel in the pipeline, the multi-stage disturbance member continuously homogenizes the fluid flow, thereby achieving the purpose of enhancing heat and mass transfer; the outer edge of the disturbance member in contact with the inner wall of the heat exchanger or the tubular reactor is designed as a toothed ring with sawteeth, so that the fluid at the boundary of the inner wall of the heat exchanger or the tubular reactor can flow through the gaps between the teeth of the toothed ring, realizing self-cleaning and cutting the flow disturbance; the support structure of the disturbance member is designed as multi-leaf plum blossom petal-shaped blades that are arranged at intervals along the axis between multiple disturbance members and have the same shape as the disturbance member, which can not only support and fix the flow disturbance component, but also play a role in cutting the flow disturbance.
[0043] The following further describes the present utility model with reference to the accompanying drawings and specific embodiments, but the following embodiments are by no means any limitation to the present utility model.
[0044] A flow disturbance component proposed by the present utility model, which is placed in a heat exchanger or a tubular reactor to enhance heat and mass transfer, includes a central shaft 1, and a plurality of disturbance members are assembled on the central shaft 1.
[0045] The disturbance member includes a bushing 7 and an outer toothed ring 4. The bushing 7 is provided with N blades 3, which can include two-leaf, three-leaf, and four-leaf. The contour of each blade 3 is in the shape of a symmetric plum blossom petal, such as Figure 1-1 , Figure 1-2 and Figure 1-3 shown. The contour of the blade 3 is composed of an arc line at the top edge far from the end of the bushing, left and right symmetric convex curves extending from both ends of the arc line, and an arc line connecting from the end of the convex curve to the outer circumferential surface of the bushing 7. Specifically, the structural shape of the blade 3 is similar to the plum blossom leaf of a playing card, and there are two rounded convex corners on the left and right of each blade.
[0046] The outer gear ring 4 and the bushing 7 are connected by N support legs A2. All the blades 3 and all the support legs A2 are arranged at intervals in the circumferential direction and are evenly distributed in the circumferential direction. The blades 3 have a helix angle of 20° to 45°, and the helix angles of all the blades 3 are the same. Its structure is similar to that of a fan blade. The included angle between the support leg A2 and the end face of the outer gear ring 4 is 10° to 30°. The specific value of this included angle mainly depends on the ductility of the metal material and the fouling tendency of the material system. For a material system that is more likely to be fouled and blocked, a larger angle is required. The contour shape of the outer gear ring 4 is a circle with a diameter of D1 (as Figure 1-2 shown) or a rounded equilateral triangle (as Figure 5 shown). In the present invention, the value range of D1 is D-(0.2 to 4 mm), where D is the inner diameter of the heat exchange tube or the tubular reactor. The tooth height of the outer gear ring 4 is H, the value range of H is 2 to 15 mm, the tooth top width is B, the value range of B is 0.5 to 3 mm, and the tooth root width is B+(2 to 3 mm), which is determined according to the specific fouling properties and process conditions; the inner diameter of the outer gear ring 4 is D2, and the value range of D2 is D1-2H. The radial dimension from the top of the blade 3 to the central axis 1 is A, and the value range of A is D2-0.5H. The outer gear ring 4 mainly plays a role in mechanically peeling off the dirt, that is, similar to the scraper of a centrifuge. For a medium that is prone to fouling and blockage, the tooth ring shape of the second embodiment as shown in Figure 5 can be adopted, and the fluid can flow between the outer edge of the tooth ring and the inner wall of the heat exchange tube or the tubular reactor. The centroid of the rounded equilateral triangle coincides with the center O of the circle with a diameter of D1. The height corresponding to the side of the rounded triangle is h, and 1<(D1 / 2):h≤1.3. The distance between the outermost point of the rounded equilateral triangle and the inner wall of the heat exchange tube or the tubular reactor is 0.1 to 2 mm, and a larger gap is selected for a medium that is prone to fouling; the width of the top of the tooth shape is 0.5 to 3 mm; the tooth height is 2 to 15 mm, and a larger tooth height is selected for a medium that is prone to fouling and blockage.
[0047] In the present invention, the cross-section of the central axis 1 can be circular, rectangular, square, or triangular; the spacing of the disturbing members is 100 to 300 mm, and the spacing can be equal or variable. On the central axis 1, a support member is fixed every 300 - 1000 mm. This support member can not only support the central axis 1 but also play a role in cutting the turbulent flow. At the same time, the spacing between the disturbing member and the adjacent support member is 50 - 200 mm.
[0048] As Figure 2-1 and Figure 2-2As shown in the figure, in the present utility model, the support member includes a fixed sleeve 81 and a fixed ring 82; N cutting and disturbing vanes 83 are provided on the fixed sleeve 81, and the contour of each cutting and disturbing vane 83 is the same as that of the vane 3 in the disturbing member, both being in the shape of a symmetric plum blossom petal. N cutting and disturbing grooves 84 are provided on the fixed ring 82, and the positions of the N cutting and disturbing grooves 84 correspond one by one to the positions of the N cutting and disturbing vanes 83. The notch shape of the corresponding cutting and disturbing grooves 84 matches the contour shape of the cutting and disturbing vanes 83; the included angle between the cutting and disturbing vanes 83 and the cross-section of the central shaft 1 is 5°; the fixed sleeve 81 and the fixed ring 82 are connected by N support legs B85, and the included angle between the support legs B85 and the end face of the fixed ring 82 is 10° to 30°. All the cutting and disturbing vanes 83 and all the support legs B85 are arranged at equal angular intervals, and the cutting and disturbing vanes 83 and all the support legs B85 are evenly distributed in the circumferential direction. As Figure 2-1 shown, the projections of all the cutting and disturbing grooves 84 and all the cutting and disturbing vanes 83 in the end direction form a complete circle.
[0049] In the present utility model, the multiple disturbing members installed on the central shaft 1 can be either fixed or rotated through rotational connection. The connection relationship between the disturbing member and the central shaft includes one of the following two methods:
[0050] First, for a material system that is not easily blocked, the disturbing member and the central shaft 1 are fixed by bolts and do not perform rotational movement. All the disturbing members and the central shaft are in clearance fit. The disturbing member is fixed on the central shaft 1. Bolt through-holes are provided at the positions on the shaft sleeve 7 and the central shaft 1 where the disturbing members are installed, and the disturbing members are fixed on the central shaft by bolt connectors, as Figure 3-1 and Figure 3-2 shown.
[0051] Second, for a material system that is easily blocked, the disturbing member can adopt a rotating form. Driven by the fluid, the disturbing member rotates on the central shaft 1. For example: in a tubular reactor, for a material system with a solid catalyst, because it is easily blocked, the disturbing member can adopt a rotating form and does not need to be fixed to the central shaft 1. The disturbing member is in rotational fit with the central shaft 1; on the central shaft, spherical limiting structures are respectively provided on both axial sides of the disturbing member, and the axial distance between the disturbing member and the spherical limiting structure is 15 to 35 mm, which can realize the rotation of the disturbing member in a certain area and an axial movement of 15 to 35 mm. As Figure 4-3As shown, the spherical limiting structure includes a sphere 12, a bolt 10 and two nuts 11. The sphere 12 is provided with a central hole that mates with the central axis 1. The sphere 12 is provided with a through hole perpendicular to and intersecting with the central hole for passing through the bolt 10. At the same time, the central axis 1 is provided with a radial through hole aligned with the bolt through hole. The outer shape of the nut 11 is a cylinder, and the axial length of the cylinder is less than the projection length of the sphere 12 on the central axis 1. Both ends of the threaded hole of the nut are provided with concave arc surfaces that coincide with the spherical surface of the sphere 12. The sphere 12 is sleeved on the central axis 1 through the central hole. The bolt 10 passes through the bolt through hole of the sphere and the radial through hole of the central axis 1 at the same time. One nut 11 is located at one end of the bolt head, and the other nut 11 is located at the other end of the bolt 10. The bolt 10 and the two nuts 11 fix the sphere 12 on the central axis 1, as Figure 4-1 , Figure 4-2 and Figure 4-3 shown. In the present utility model, since the spherical limiting structure and the disturbing member are in point contact, the contact area is very small, reducing the friction between the two. Considering the corrosion and wear of the disturbing member by the easily blocked material system, it is recommended to use a material with strong wear resistance.
[0052] The support member 8 is fixed on the central axis 1. The fixed sleeve 81 and the central axis 1 are provided with coaxial radial through holes, and the fixed sleeve 81 is fixed on the central axis 1 through a bolt connecting member. At the same time, N expansion nails 9 are provided, and the fixing ring 82 is fixed on the inner wall of the heat exchange tube or the tubular reactor by using the expansion nails 9, as Figures 2-1 to 4-3 shown.
[0053] The material of the disturbing member is selected from wear-resistant materials, including the following series: alloy steel series, chromium cast iron series, composite or gradient material series, non-metallic wear-resistant materials. The disturbing member and the support member are integrally formed by casting or stamping processes. For example:
[0054] ① Alloy steel series: stainless steel (such as 304, 316L) or nickel-based alloy, with strong acid resistance and corrosion resistance.
[0055] ② Chromium cast iron series: chromium white cast iron, with excellent high-temperature performance, good oxidation resistance and corrosion resistance.
[0056] ③ Non-metallic wear-resistant material series: silicon nitride (Si3N4), belonging to ceramic materials, with strong thermal conductivity.
[0057] ④ Composite or gradient material series:
[0058] Composite materials can be divided into:
[0059] (1) Metal Matrix Composites (MMCs): Tungsten Carbide - Aluminum Matrix Composites (WC / Al), by dispersing tungsten carbide particles in the aluminum matrix, significantly improve the hardness and wear resistance of the material; Chromium Carbide - Nickel Matrix Composites (Cr3C2 / Ni), combining the high hardness of chromium carbide and the toughness of the nickel matrix, are suitable for high - temperature and corrosive environments.
[0060] (2) Ceramic Matrix Composites (CMC): Toughened Zirconia (Y2O3 + ZrO2) has high toughness, high strength and wear resistance; Toughened Alumina (Al2O3 / ZrO2) improves toughness and corrosion resistance while maintaining high hardness.
[0061] (3) Polymer Matrix Composites (PMC): Polyurethane (PU) composites, by combining with wear - resistant particles (such as silicon carbide or ceramic particles), enhance their wear resistance and are suitable for high - load and friction conditions.
[0062] Although the present utility model has been described above in conjunction with the accompanying drawings, the present utility model is not limited to the above - mentioned specific embodiments. The above - mentioned specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many improvements and changes without departing from the purpose of the present utility model, and all of these fall within the protection scope of the present utility model.
Claims
1. A turbulator assembly used to enhance heat and mass transfer in a heat exchanger or tubular reactor, comprising a central shaft (1), and a plurality of turbulators are assembled on the central shaft (1); characterized in that: The turbulator includes a bushing (7) and an external gear ring (4). The bushing (7) is provided with N blades (3). The profile of each blade (3) is in the shape of a symmetric plum blossom petal. The external gear ring (4) is connected to the bushing (7) through N support legs A (2). All the blades (3) and all the support legs A (2) are arranged at intervals in the circumferential direction, and all the blades (3) and all the support legs A (2) are evenly distributed in the circumferential direction. The blade (3) has a helix angle of 20° to 45°; the included angle between the support leg A (2) and the end face of the external gear ring (4) is 10° to 30°; The profile shape of the external gear ring (4) is a circle with a diameter of D1 or a rounded regular triangle. The centroid of the rounded regular triangle coincides with the center O of the circle with a diameter of D1. The height corresponding to the side of the rounded triangle is h, and 1 < (D1 / 2):h ≤ 1.3; the value range of D1 is D-(0.2 to 4 mm), where D is the inner diameter of the heat exchange tube or tubular reactor; the tooth height of the external gear ring (4) is H, the value range of H is 2 to 15 mm, the tooth tip width is B, the value range of B is 0.5 to 3 mm; the tooth root width is B+(2 to 3 mm), the inner diameter of the external gear ring (4) is D2, and the value range of D2 is D1 - 2H. The radial dimension from the top of the blade (3) to the central shaft (1) is A, and the value range of A is D2 - 0.5H; The spacing of the turbulators is 100 to 300 mm. On the central shaft (1), a support member is fixed every 300 - 1000 mm. At the same time, the spacing between the turbulator and the adjacent support member is 50 - 200 mm; The support member includes a fixing sleeve (81) and a fixing ring (82); the fixing sleeve (81) is provided with N cutting turbulator blades (83). The profile of each cutting turbulator blade (83) is in the shape of a symmetric plum blossom petal. The fixing ring (82) is provided with N cutting turbulator grooves (84). The positions of the N cutting turbulator grooves (84) correspond to the positions of the N cutting turbulator blades (83) one by one. The notch shape of the corresponding cutting turbulator groove (84) coincides with the profile shape of the cutting turbulator blade (83); the included angle between the cutting turbulator blade (83) and the cross-section of the central shaft (1) is 5°; the fixing sleeve (81) and the fixing ring (82) are connected through N support legs B (85). The included angle between the support leg B (85) and the end face of the fixing ring (82) is 10° to 30°. All the cutting turbulator blades (83) and all the support legs B (85) are arranged at equal angular intervals, and the cutting turbulator blades (83) and all the support legs B (85) are evenly distributed in the circumferential direction.
2. The spoiler assembly according to claim 1, characterized in that, The profile of the blade is composed of an arc line at the top edge far from the end of the bushing, left and right symmetric convex curves extending from both ends of the arc line, and an arc line connecting from the end of the convex curve to the outer rotating surface of the bushing.
3. The spoiler assembly according to claim 1, characterized in that The projections of all the cutting spoiler grooves (84) and all the cutting spoiler blades (83) in the end-up direction form a complete circle.
4. The spoiler assembly according to claim 1, characterized in that, N＝2～4。 5. The spoiler assembly according to claim 1, characterized in that All the disturbing members are in transitional fit with the central axis. The disturbing members are fixed on the central axis (1). Bolt through holes are provided at the positions on the sleeve (7) and the central axis (1) where the disturbing members are installed. The disturbing members are fixed on the central axis by bolt connectors.
6. The spoiler assembly according to claim 1, characterized in that The disturbing members are in rotational fit with the central axis (1). On the central axis, spherical limiting structures are respectively provided on both axial sides of the disturbing members. The axial distance between the disturbing members and the spherical limiting structures is 15 - 35 mm.
7. The spoiler assembly according to claim 6, wherein The spherical limiting structure includes a sphere (12), a bolt (10) and two nuts. The sphere (12) is provided with a central hole for fitting with the central axis (1). The sphere (12) is provided with a through hole perpendicular to and intersecting with the central hole for passing through the bolt (10). At the same time, the central axis (1) is provided with a radial through hole aligned with the bolt through hole. The outer shape of the nut is a cylinder. The axial length of the cylinder is less than the projection length of the sphere (12) on the central axis (1). Concave arc surfaces are provided at both ends of the threaded hole of the nut. The arc surfaces coincide with the spherical surface of the sphere (12). The sphere (12) is sleeved on the central axis (1) through the central hole. The bolt (10) passes through the bolt through hole of the sphere and the radial through hole of the central axis (1) at the same time. One nut is located at one end of the bolt head, and the other nut is located at the other end of the bolt (10). The bolt (10) and the two nuts fix the sphere (12) on the central axis (1).
8. The spoiler assembly according to claim 1, wherein The support member (8) is fixed on the central axis (1). Coaxial radial through holes are provided on the fixed sleeve (81) and the central axis (1). The fixed sleeve (81) is fixed on the central axis (1) by bolt connectors. At the same time, N expansion nails (9) are provided. The fixing ring (82) is fixed on the inner wall of the heat exchange tube or the tubular reactor by using the expansion nails (9).
9. The spoiler assembly according to claim 1, wherein, The disturbing members and the support members are integrally formed by casting or stamping processes.
10. The spoiler assembly according to claim 9, wherein The material of the disturbing members is selected from one of the following materials: alloy steel series, chromium cast iron series, composite or gradient material series, non-metallic wear-resistant materials.