A recrystallized silicon carbide ceramic membrane tube with a spiral flow guide structure

Abstract

The utility model discloses a heavy crystallization silicon carbide ceramic membrane tube with spiral flow guide structure, it includes the membrane tube, and the inside is provided with membrane hole, flow guide part is set up in the membrane tube end, is located the one end for the water intake of membrane tube, sealing ring is set up in the flow guide part away from one end of membrane tube, turbulent flow part is set up in the inside of membrane tube, and is fixedly connected with flow guide part, buffer part is set up in the one end of membrane tube away from flow guide part. Through above -mentioned structure, set up flow guide part can guide water flow in the membrane hole, reduce the impact of water flow and membrane tube end surface, prevent the end surface from being affected by pressure and cause the liquid permeation ability of membrane tube water intake end to be affected, cooperate turbulent flow part and make the rotation turbulent flow in water, enhance the pressure of water flow to the inside wall of membrane hole, increase the filtration area of water flow, improve the liquid permeation effect of membrane tube, can brush the inside wall of membrane hole simultaneously, effectively alleviate the pollutant deposition.

Description

Technical Field

[0001] This utility model relates to the field of ceramic membrane tube technology, and in particular to a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure. Background Technology

[0002] Currently, in the application of ceramic membrane tubes, the inlet end often faces the problem of direct water flow impacting the end face, which can easily cause pressure damage to the dense layer on the end face, affecting the permeate efficiency. At the same time, the internal structure of traditional membrane tubes is mostly a direct flow channel, with water flowing through in a laminar state, resulting in weak sweeping effect on the membrane wall and inability to effectively inhibit pollutant deposition. This leads to insufficient utilization of the filtration area, easy clogging of membrane pores, and limitations on filtration effect and service life. Although some existing technologies have flow guiding structures that attempt to improve the flow field distribution, they are mostly limited to a single flow guiding component. The turbulence intensity generated is insufficient and decays rapidly in the flow channel, making it difficult to form a continuous and stable rotational shear force, resulting in limited improvement in antifouling effect. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure. By sequentially arranging a flow guiding component with a spiral groove, a flow guiding plate, a flow guiding rod, and an acceleration tube on the inner sidewall of the membrane pore behind a flow guiding ring with a conical inner wall, a multi-stage synergistic spiral flow guiding system is constructed. This design effectively solves the problem of direct impact of water flow on the inlet end of the membrane tube, protects the end face structure, and at the same time, the spiral groove imparts an initial tangential velocity to the water flow. The flow guiding rod strengthens the spiral turbulence, and the acceleration tube accelerates the water flow through the Venturi effect, forming and maintaining a high-intensity, non-collapsed rotating turbulence inside the membrane pore. This significantly enhances the scouring effect on the membrane wall, increases the effective filtration area, and achieves the comprehensive effect of reducing pollutant deposition, improving permeate efficiency, and extending the service life of the membrane tube.

[0004] This utility model also provides a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure as described above, comprising: a membrane tube with membrane pores inside;

[0005] A flow guiding component is located at the end of the membrane tube, at the end of the membrane tube used for water inlet;

[0006] A sealing ring is located at the end of the flow guiding component away from the membrane tube;

[0007] The turbulence component is located inside the membrane tube and is fixedly connected to the flow guiding component;

[0008] A buffer component is located at the end of the membrane tube furthest from the flow guiding component.

[0009] This utility model also has the following technical features:

[0010] In one embodiment of this utility model, the membrane pores are a plurality of and are distributed in an array inside the membrane tube.

[0011] In one embodiment of the present invention, the flow guiding component includes a flow guiding ring, a flow guiding element, and a flow guiding plate. The inner sidewall of the flow guiding ring is conical, and the inner sidewall of the flow guiding ring is fixedly connected to the side surface of the flow guiding element. The end face of the flow guiding plate is fixedly connected to the end face of the flow guiding element.

[0012] In one embodiment of this utility model, the side surface of the flow guide ring is fitted with the inner wall of the sealing ring, the end of the flow guide plate away from the flow guide component is fixedly connected to the end face of the membrane tube, the flow guide plate and the flow guide component are provided with through holes that match the membrane holes, and the inner wall of the through hole of the flow guide plate is provided with a spiral groove.

[0013] In one embodiment of this utility model, the turbulence component includes a guide vane, a mounting rod, and an inclined vane. The guide vane is a plurality of such vanes and its ends are fixedly connected to each other. The end of the mounting rod is fixedly connected to the connection point of the plurality of guide vanes. The end of the inclined vane is fixedly connected to the side surface of the mounting rod. The inclined vane is a plurality of such vanes and is distributed in an array on the side surface of the mounting rod. The inclined vane is inclined.

[0014] In one embodiment of this utility model, the end of the guide plate away from the mounting rod is fixedly connected to the connection between the guide plate and the membrane tube, and the mounting rod and the inclined plate are located inside the membrane hole.

[0015] In one embodiment of the present invention, the buffer component includes a buffer plate and a discharge pipe. The buffer plate has several arrayed straight grooves inside, and the inner wall of the discharge pipe is fixedly connected to the side surface of the buffer plate.

[0016] In one embodiment of this utility model, the end face of the buffer plate is fixedly connected to the end of the mounting rod away from the guide plate, and the end of the discharge pipe is connected to the end of the membrane tube away from the guide plate.

[0017] In one embodiment of the present invention, the turbulence component includes a guide rod and an acceleration tube. The side surface of the guide rod is fixedly connected to the inner wall of the acceleration tube. The guide rod is helical and the inner wall of the acceleration tube is wavy.

[0018] In one embodiment of this utility model, the end of the guide rod is fixedly connected to the end face of the guide plate, the guide rod matches the protrusion inside the guide plate, and the side surface of the acceleration tube is fixedly connected to the inner wall of the membrane hole.

[0019] In one embodiment of the present invention, the buffer component includes a buffer plate and a discharge pipe. The buffer plate has several arrayed straight grooves inside, and the inner wall of the discharge pipe is fixedly connected to the side surface of the buffer plate.

[0020] In one embodiment of this utility model, the end face of the buffer plate is fixedly connected to the inner wall of the membrane hole, and the end of the discharge pipe is connected to the end of the membrane tube away from the guide plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. A guide ring with a conical inner wall is provided to guide the water flow to the membrane tube, and a guide element and guide plate matching the membrane pores are provided therein. The guide element and guide plate can guide the water flow into the membrane pores, reduce the impact of the water flow on the end face of the membrane tube, and prevent the end face from being pressured, which would affect the seepage capacity of the water inlet end of the membrane tube.

[0023] 2. A spiral groove is formed on the inner wall of the guide plate to impart an initial tangential velocity to the water flow. A guide rod is set at the end of the guide plate away from the guide component to further enhance the swirling turbulence in the water. In conjunction with the acceleration tube located on the side surface of the guide rod and the inner wall of the membrane pore, the wavy cross-section of the acceleration tube can accelerate the water flow velocity inside the membrane pore through the Venturi effect. It can also strengthen the swirling turbulence to prevent it from collapsing inside the membrane pore, and increase the pressure of the water flow on the inner wall of the membrane pore, thereby increasing the filtration area of ​​the water flow and improving the permeation effect of the membrane tube. At the same time, it can sweep the inner wall of the membrane pore, effectively reducing the deposition of pollutants. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is an overall structural diagram of the recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to this utility model;

[0026] Figure 2 This is a side view of the recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to this utility model.

[0027] Figure 3 This is a front cross-sectional view of the recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to this utility model.

[0028] Figure 4 This invention relates to a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure. Figure 3 Structural diagram at point A;

[0029] Figure 5 This invention relates to a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure. Figure 3 Structural diagram at point B.

[0030] Legend:

[0031] 1. Membrane tube; 11. Membrane pore;

[0032] 2. Flow guiding components; 21. Flow guiding ring; 22. Flow guiding element; 23. Flow guiding plate; 24. Spiral groove;

[0033] 3. Sealing ring;

[0034] 4. Turbulence components; 41. Guide rod; 42. Accelerator tube;

[0035] 5. Buffer components; 51. Buffer plate; 52. Discharge pipe. Detailed Implementation

[0036] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0037] It should be noted that the existing recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure has the following core defects: water flow directly impacts the end face, causing damage; the internal flow field easily forms laminar flow, resulting in insufficient membrane wall sweeping; and the turbulence intensity generated by the existing flow guiding structure is weak and decays quickly, failing to effectively suppress pollutant deposition and fully utilize the filtration area. To address these issues, a recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure is proposed, comprising: a membrane tube 1 with membrane pores 11 inside; a flow guiding component 2, located at the end of the membrane tube 1 where water is introduced; a sealing ring 3, located at the end of the flow guiding component 2 away from the membrane tube 1; a turbulence component 4, located inside the membrane tube 1 and fixedly connected to the flow guiding component 2; and a buffer component 5, located at the end of the membrane tube 1 away from the flow guiding component 2.

[0038] In one embodiment, see Figure 3 The membrane pores 11 are numerous and arranged in an array inside the membrane tube 1.

[0039] Specifically, by increasing the water pressure, the water can fully contact the inner wall of the membrane pores 11 and be filtered and separated.

[0040] In one embodiment, see Figure 2 The flow guiding component 2 includes a flow guiding ring 21, a flow guiding element 22, and a flow guiding plate 23. The inner sidewall of the flow guiding ring 21 is conical, and the inner sidewall of the flow guiding ring 21 is fixedly connected to the side surface of the flow guiding element 22. The end face of the flow guiding plate 23 is fixedly connected to the end face of the flow guiding element 22.

[0041] Specifically, the conical surface of the guide ring 21 can accelerate the water flow speed, and the guide member 22 and the guide plate 23 can guide the water flow into the membrane hole 11.

[0042] In one embodiment, see Figure 3The side surface of the guide ring 21 is fitted with the inner wall of the sealing ring 3. The end of the guide plate 23 away from the guide member 22 is fixedly connected to the end face of the membrane tube 1. The guide plate 23 and the guide member 22 have through holes that match the membrane hole 11. The inner wall of the through hole in the guide plate 23 has a spiral groove 24.

[0043] Specifically, it prevents water from entering the guide ring 21, ensures stable water flow for filtration and separation, and allows water to enter the membrane pores 11, reducing the impact of water flow on the end face of the membrane tube 1, preventing pressure on the end face from affecting the seepage capacity of the water inlet end of the membrane tube 1, and imparting an initial tangential velocity to the water flow through the spiral groove 24 inside the guide plate 23.

[0044] In one embodiment, see Figure 4 The turbulence component 4 includes a guide rod 41 and an acceleration tube 42. The side surface of the guide rod 41 is fixedly connected to the inner wall of the acceleration tube 42. The guide rod 41 is spiral-shaped, and the inner wall of the acceleration tube 42 is wavy.

[0045] Specifically, the guide rod 41 enhances the rotating turbulence in the water, and the acceleration tube 42 increases the water flow velocity inside the membrane aperture 11, while maintaining the turbulence in the water and preventing the rotating turbulence from dissipating inside the membrane aperture 11.

[0046] In one embodiment, see Figure 4 The end of the guide rod 41 is fixedly connected to the end face of the guide plate 23, the guide rod 41 matches the protrusion inside the guide plate 23, and the side surface of the acceleration tube 42 is fixedly connected to the inner wall of the membrane hole 11.

[0047] Specifically, it provides a fixed position for the guide rod 41 so that the acceleration tube 42 can work stably.

[0048] In one embodiment, see Figure 5 The buffer component 5 includes a buffer plate 51 and a discharge pipe 52. The buffer plate 51 has several arrayed straight grooves inside. The inner wall of the discharge pipe 52 is fixedly connected to the side surface of the buffer plate 51.

[0049] Specifically, the straight groove inside the buffer plate 51 buffers the water flow, slows down the water flow, and eliminates turbulence, so that the water flow is stably discharged by the discharge pipe 52.

[0050] In one embodiment, see Figure 4 and Figure 5 The end face of the buffer plate 51 is fixedly connected to the inner wall of the membrane hole 11, and the end of the discharge pipe 52 is connected to the end of the membrane tube 1 away from the guide plate 23.

[0051] Specifically, the buffer plate 51 and the discharge pipe 52 are fixed, and the water inside the membrane tube 1 is discharged.

[0052] Working principle: During the use of the device, the sealing ring 3 allows all water to enter the guide ring 21. Since the inner wall of the guide ring 21 is conical, it can quickly guide the water flow to the membrane tube 1. The guide ring 21 is equipped with a guide element 22 and a guide plate 23 that match the membrane orifice 11. The guide element 22 and the guide plate 23 can guide the water flow into the membrane orifice 11, reducing the impact of the water flow on the end face of the membrane tube 1 and preventing the end face from being pressured, which would affect the seepage capacity of the water inlet end of the membrane tube 1. A spiral groove 24 is opened on the inner wall of the guide plate 23 to give the water flow an initial tangential velocity. A spiral groove 24 is provided on the end of the guide plate 23 away from the guide element 22. The guide rod 41 further enhances the turbulent flow in the water. In conjunction with the acceleration tube 42 located on the inner wall of the membrane pore 11, the wavy shape of the acceleration tube 42 accelerates the water flow speed through the Venturi effect, maintains the turbulence in the water, prevents it from collapsing inside the membrane pore 11, and increases the pressure of the water flow on the inner wall of the membrane pore 11, increasing the filtration area of ​​the water flow and improving the permeation effect of the membrane tube 1. At the same time, it can sweep the inner wall of the membrane pore 11, effectively reducing the deposition of pollutants. Finally, the buffer plate 51 with straight grooves at the beginning of the interior smooths out the turbulence in the water, so that the water flow is stably discharged through the discharge pipe 52, preventing the water flow from being too rapid and causing additional damage.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A recrystallized silicon carbide ceramic membrane tube with a spiral flow-guiding structure, characterized in that, include: Membrane tube (1), with membrane pores (11) inside. A flow guiding component (2) is provided at the end of the membrane tube (1), located at the end of the membrane tube (1) used for water inlet; A sealing ring (3) is disposed at the end of the flow guiding component (2) away from the membrane tube (1); Turbulence component (4) is disposed inside membrane tube (1) and fixedly connected to flow guiding component (2); The buffer component (5) is located at the end of the membrane tube (1) away from the flow guide component (2).

2. The recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 1, characterized in that, The membrane pores (11) are numerous and arranged in an array inside the membrane tube (1).

3. The recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 1, characterized in that, The flow guiding component (2) includes a flow guiding ring (21), a flow guiding element (22) and a flow guiding plate (23). The inner wall of the flow guiding ring (21) is conical. The inner wall of the flow guiding ring (21) is fixedly connected to the side surface of the flow guiding element (22). The end face of the flow guiding plate (23) is fixedly connected to the end face of the flow guiding element (22).

4. The recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 3, characterized in that, The side surface of the flow guide ring (21) is fitted with the inner wall of the sealing ring (3). The end of the flow guide plate (23) away from the flow guide (22) is fixedly connected to the end face of the membrane tube (1). The flow guide plate (23) and the flow guide (22) are provided with through holes that match the membrane hole (11). The inner wall of the through hole of the flow guide plate (23) is provided with a spiral groove (24).

5. A recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 1, characterized in that, The turbulence component (4) includes a guide rod (41) and an acceleration tube (42). The side surface of the guide rod (41) is fixedly connected to the inner wall of the acceleration tube (42). The guide rod (41) is spiral-shaped, and the inner wall of the acceleration tube (42) is wavy.

6. A recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 5, characterized in that, The end of the guide rod (41) is fixedly connected to the end face of the guide plate (23), the guide rod (41) matches the protrusion inside the guide plate (23), and the side surface of the acceleration tube (42) is fixedly connected to the inner wall of the membrane hole (11).

7. A recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 1, characterized in that, The buffer component (5) includes a buffer plate (51) and a discharge pipe (52). The buffer plate (51) has several arrayed straight grooves inside. The inner wall of the discharge pipe (52) is fixedly connected to the side surface of the buffer plate (51).

8. A recrystallized silicon carbide ceramic membrane tube with a spiral flow guiding structure according to claim 7, characterized in that, The end face of the buffer plate (51) is fixedly connected to the inner wall of the membrane hole (11), and the end of the discharge pipe (52) is connected to the end of the membrane tube (1) away from the guide plate (23).

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